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Added vendor directory to source control

This commit is contained in:
Daniel 2021-11-08 13:23:16 -03:00
parent 16534d4217
commit d2589e176f
3049 changed files with 249997 additions and 395005 deletions

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@ -1,34 +1,34 @@
<?php
class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
{
public function __construct()
{
parent::__construct(false); // opacity is non-negative, but we will clamp it
}
/**
* @param string $number
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string
*/
public function validate($number, $config, $context)
{
$result = parent::validate($number, $config, $context);
if ($result === false) {
return $result;
}
$float = (float)$result;
if ($float < 0.0) {
$result = '0';
}
if ($float > 1.0) {
$result = '1';
}
return $result;
}
}
// vim: et sw=4 sts=4
<?php
class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
{
public function __construct()
{
parent::__construct(false); // opacity is non-negative, but we will clamp it
}
/**
* @param string $number
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string
*/
public function validate($number, $config, $context)
{
$result = parent::validate($number, $config, $context);
if ($result === false) {
return $result;
}
$float = (float)$result;
if ($float < 0.0) {
$result = '0';
}
if ($float > 1.0) {
$result = '1';
}
return $result;
}
}
// vim: et sw=4 sts=4

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@ -1,111 +1,111 @@
<?php
/**
* Validates shorthand CSS property background.
* @warning Does not support url tokens that have internal spaces.
*/
class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
{
/**
* Local copy of component validators.
* @type HTMLPurifier_AttrDef[]
* @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
*/
protected $info;
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['background-color'] = $def->info['background-color'];
$this->info['background-image'] = $def->info['background-image'];
$this->info['background-repeat'] = $def->info['background-repeat'];
$this->info['background-attachment'] = $def->info['background-attachment'];
$this->info['background-position'] = $def->info['background-position'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// munge rgb() decl if necessary
$string = $this->mungeRgb($string);
// assumes URI doesn't have spaces in it
$bits = explode(' ', $string); // bits to process
$caught = array();
$caught['color'] = false;
$caught['image'] = false;
$caught['repeat'] = false;
$caught['attachment'] = false;
$caught['position'] = false;
$i = 0; // number of catches
foreach ($bits as $bit) {
if ($bit === '') {
continue;
}
foreach ($caught as $key => $status) {
if ($key != 'position') {
if ($status !== false) {
continue;
}
$r = $this->info['background-' . $key]->validate($bit, $config, $context);
} else {
$r = $bit;
}
if ($r === false) {
continue;
}
if ($key == 'position') {
if ($caught[$key] === false) {
$caught[$key] = '';
}
$caught[$key] .= $r . ' ';
} else {
$caught[$key] = $r;
}
$i++;
break;
}
}
if (!$i) {
return false;
}
if ($caught['position'] !== false) {
$caught['position'] = $this->info['background-position']->
validate($caught['position'], $config, $context);
}
$ret = array();
foreach ($caught as $value) {
if ($value === false) {
continue;
}
$ret[] = $value;
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates shorthand CSS property background.
* @warning Does not support url tokens that have internal spaces.
*/
class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
{
/**
* Local copy of component validators.
* @type HTMLPurifier_AttrDef[]
* @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
*/
protected $info;
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['background-color'] = $def->info['background-color'];
$this->info['background-image'] = $def->info['background-image'];
$this->info['background-repeat'] = $def->info['background-repeat'];
$this->info['background-attachment'] = $def->info['background-attachment'];
$this->info['background-position'] = $def->info['background-position'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// munge rgb() decl if necessary
$string = $this->mungeRgb($string);
// assumes URI doesn't have spaces in it
$bits = explode(' ', $string); // bits to process
$caught = array();
$caught['color'] = false;
$caught['image'] = false;
$caught['repeat'] = false;
$caught['attachment'] = false;
$caught['position'] = false;
$i = 0; // number of catches
foreach ($bits as $bit) {
if ($bit === '') {
continue;
}
foreach ($caught as $key => $status) {
if ($key != 'position') {
if ($status !== false) {
continue;
}
$r = $this->info['background-' . $key]->validate($bit, $config, $context);
} else {
$r = $bit;
}
if ($r === false) {
continue;
}
if ($key == 'position') {
if ($caught[$key] === false) {
$caught[$key] = '';
}
$caught[$key] .= $r . ' ';
} else {
$caught[$key] = $r;
}
$i++;
break;
}
}
if (!$i) {
return false;
}
if ($caught['position'] !== false) {
$caught['position'] = $this->info['background-position']->
validate($caught['position'], $config, $context);
}
$ret = array();
foreach ($caught as $value) {
if ($value === false) {
continue;
}
$ret[] = $value;
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4

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@ -1,157 +1,157 @@
<?php
/* W3C says:
[ // adjective and number must be in correct order, even if
// you could switch them without introducing ambiguity.
// some browsers support that syntax
[
<percentage> | <length> | left | center | right
]
[
<percentage> | <length> | top | center | bottom
]?
] |
[ // this signifies that the vertical and horizontal adjectives
// can be arbitrarily ordered, however, there can only be two,
// one of each, or none at all
[
left | center | right
] ||
[
top | center | bottom
]
]
top, left = 0%
center, (none) = 50%
bottom, right = 100%
*/
/* QuirksMode says:
keyword + length/percentage must be ordered correctly, as per W3C
Internet Explorer and Opera, however, support arbitrary ordering. We
should fix it up.
Minor issue though, not strictly necessary.
*/
// control freaks may appreciate the ability to convert these to
// percentages or something, but it's not necessary
/**
* Validates the value of background-position.
*/
class HTMLPurifier_AttrDef_CSS_BackgroundPosition extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_CSS_Length
*/
protected $length;
/**
* @type HTMLPurifier_AttrDef_CSS_Percentage
*/
protected $percentage;
public function __construct()
{
$this->length = new HTMLPurifier_AttrDef_CSS_Length();
$this->percentage = new HTMLPurifier_AttrDef_CSS_Percentage();
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
$bits = explode(' ', $string);
$keywords = array();
$keywords['h'] = false; // left, right
$keywords['v'] = false; // top, bottom
$keywords['ch'] = false; // center (first word)
$keywords['cv'] = false; // center (second word)
$measures = array();
$i = 0;
$lookup = array(
'top' => 'v',
'bottom' => 'v',
'left' => 'h',
'right' => 'h',
'center' => 'c'
);
foreach ($bits as $bit) {
if ($bit === '') {
continue;
}
// test for keyword
$lbit = ctype_lower($bit) ? $bit : strtolower($bit);
if (isset($lookup[$lbit])) {
$status = $lookup[$lbit];
if ($status == 'c') {
if ($i == 0) {
$status = 'ch';
} else {
$status = 'cv';
}
}
$keywords[$status] = $lbit;
$i++;
}
// test for length
$r = $this->length->validate($bit, $config, $context);
if ($r !== false) {
$measures[] = $r;
$i++;
}
// test for percentage
$r = $this->percentage->validate($bit, $config, $context);
if ($r !== false) {
$measures[] = $r;
$i++;
}
}
if (!$i) {
return false;
} // no valid values were caught
$ret = array();
// first keyword
if ($keywords['h']) {
$ret[] = $keywords['h'];
} elseif ($keywords['ch']) {
$ret[] = $keywords['ch'];
$keywords['cv'] = false; // prevent re-use: center = center center
} elseif (count($measures)) {
$ret[] = array_shift($measures);
}
if ($keywords['v']) {
$ret[] = $keywords['v'];
} elseif ($keywords['cv']) {
$ret[] = $keywords['cv'];
} elseif (count($measures)) {
$ret[] = array_shift($measures);
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4
<?php
/* W3C says:
[ // adjective and number must be in correct order, even if
// you could switch them without introducing ambiguity.
// some browsers support that syntax
[
<percentage> | <length> | left | center | right
]
[
<percentage> | <length> | top | center | bottom
]?
] |
[ // this signifies that the vertical and horizontal adjectives
// can be arbitrarily ordered, however, there can only be two,
// one of each, or none at all
[
left | center | right
] ||
[
top | center | bottom
]
]
top, left = 0%
center, (none) = 50%
bottom, right = 100%
*/
/* QuirksMode says:
keyword + length/percentage must be ordered correctly, as per W3C
Internet Explorer and Opera, however, support arbitrary ordering. We
should fix it up.
Minor issue though, not strictly necessary.
*/
// control freaks may appreciate the ability to convert these to
// percentages or something, but it's not necessary
/**
* Validates the value of background-position.
*/
class HTMLPurifier_AttrDef_CSS_BackgroundPosition extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_CSS_Length
*/
protected $length;
/**
* @type HTMLPurifier_AttrDef_CSS_Percentage
*/
protected $percentage;
public function __construct()
{
$this->length = new HTMLPurifier_AttrDef_CSS_Length();
$this->percentage = new HTMLPurifier_AttrDef_CSS_Percentage();
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
$bits = explode(' ', $string);
$keywords = array();
$keywords['h'] = false; // left, right
$keywords['v'] = false; // top, bottom
$keywords['ch'] = false; // center (first word)
$keywords['cv'] = false; // center (second word)
$measures = array();
$i = 0;
$lookup = array(
'top' => 'v',
'bottom' => 'v',
'left' => 'h',
'right' => 'h',
'center' => 'c'
);
foreach ($bits as $bit) {
if ($bit === '') {
continue;
}
// test for keyword
$lbit = ctype_lower($bit) ? $bit : strtolower($bit);
if (isset($lookup[$lbit])) {
$status = $lookup[$lbit];
if ($status == 'c') {
if ($i == 0) {
$status = 'ch';
} else {
$status = 'cv';
}
}
$keywords[$status] = $lbit;
$i++;
}
// test for length
$r = $this->length->validate($bit, $config, $context);
if ($r !== false) {
$measures[] = $r;
$i++;
}
// test for percentage
$r = $this->percentage->validate($bit, $config, $context);
if ($r !== false) {
$measures[] = $r;
$i++;
}
}
if (!$i) {
return false;
} // no valid values were caught
$ret = array();
// first keyword
if ($keywords['h']) {
$ret[] = $keywords['h'];
} elseif ($keywords['ch']) {
$ret[] = $keywords['ch'];
$keywords['cv'] = false; // prevent re-use: center = center center
} elseif (count($measures)) {
$ret[] = array_shift($measures);
}
if ($keywords['v']) {
$ret[] = $keywords['v'];
} elseif ($keywords['cv']) {
$ret[] = $keywords['cv'];
} elseif (count($measures)) {
$ret[] = array_shift($measures);
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4

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@ -1,56 +1,56 @@
<?php
/**
* Validates the border property as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Border extends HTMLPurifier_AttrDef
{
/**
* Local copy of properties this property is shorthand for.
* @type HTMLPurifier_AttrDef[]
*/
protected $info = array();
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['border-width'] = $def->info['border-width'];
$this->info['border-style'] = $def->info['border-style'];
$this->info['border-top-color'] = $def->info['border-top-color'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
$string = $this->mungeRgb($string);
$bits = explode(' ', $string);
$done = array(); // segments we've finished
$ret = ''; // return value
foreach ($bits as $bit) {
foreach ($this->info as $propname => $validator) {
if (isset($done[$propname])) {
continue;
}
$r = $validator->validate($bit, $config, $context);
if ($r !== false) {
$ret .= $r . ' ';
$done[$propname] = true;
break;
}
}
}
return rtrim($ret);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the border property as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Border extends HTMLPurifier_AttrDef
{
/**
* Local copy of properties this property is shorthand for.
* @type HTMLPurifier_AttrDef[]
*/
protected $info = array();
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['border-width'] = $def->info['border-width'];
$this->info['border-style'] = $def->info['border-style'];
$this->info['border-top-color'] = $def->info['border-top-color'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
$string = $this->mungeRgb($string);
$bits = explode(' ', $string);
$done = array(); // segments we've finished
$ret = ''; // return value
foreach ($bits as $bit) {
foreach ($this->info as $propname => $validator) {
if (isset($done[$propname])) {
continue;
}
$r = $validator->validate($bit, $config, $context);
if ($r !== false) {
$ret .= $r . ' ';
$done[$propname] = true;
break;
}
}
}
return rtrim($ret);
}
}
// vim: et sw=4 sts=4

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@ -1,161 +1,161 @@
<?php
/**
* Validates Color as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_CSS_AlphaValue
*/
protected $alpha;
public function __construct()
{
$this->alpha = new HTMLPurifier_AttrDef_CSS_AlphaValue();
}
/**
* @param string $color
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($color, $config, $context)
{
static $colors = null;
if ($colors === null) {
$colors = $config->get('Core.ColorKeywords');
}
$color = trim($color);
if ($color === '') {
return false;
}
$lower = strtolower($color);
if (isset($colors[$lower])) {
return $colors[$lower];
}
if (preg_match('#(rgb|rgba|hsl|hsla)\(#', $color, $matches) === 1) {
$length = strlen($color);
if (strpos($color, ')') !== $length - 1) {
return false;
}
// get used function : rgb, rgba, hsl or hsla
$function = $matches[1];
$parameters_size = 3;
$alpha_channel = false;
if (substr($function, -1) === 'a') {
$parameters_size = 4;
$alpha_channel = true;
}
/*
* Allowed types for values :
* parameter_position => [type => max_value]
*/
$allowed_types = array(
1 => array('percentage' => 100, 'integer' => 255),
2 => array('percentage' => 100, 'integer' => 255),
3 => array('percentage' => 100, 'integer' => 255),
);
$allow_different_types = false;
if (strpos($function, 'hsl') !== false) {
$allowed_types = array(
1 => array('integer' => 360),
2 => array('percentage' => 100),
3 => array('percentage' => 100),
);
$allow_different_types = true;
}
$values = trim(str_replace($function, '', $color), ' ()');
$parts = explode(',', $values);
if (count($parts) !== $parameters_size) {
return false;
}
$type = false;
$new_parts = array();
$i = 0;
foreach ($parts as $part) {
$i++;
$part = trim($part);
if ($part === '') {
return false;
}
// different check for alpha channel
if ($alpha_channel === true && $i === count($parts)) {
$result = $this->alpha->validate($part, $config, $context);
if ($result === false) {
return false;
}
$new_parts[] = (string)$result;
continue;
}
if (substr($part, -1) === '%') {
$current_type = 'percentage';
} else {
$current_type = 'integer';
}
if (!array_key_exists($current_type, $allowed_types[$i])) {
return false;
}
if (!$type) {
$type = $current_type;
}
if ($allow_different_types === false && $type != $current_type) {
return false;
}
$max_value = $allowed_types[$i][$current_type];
if ($current_type == 'integer') {
// Return value between range 0 -> $max_value
$new_parts[] = (int)max(min($part, $max_value), 0);
} elseif ($current_type == 'percentage') {
$new_parts[] = (float)max(min(rtrim($part, '%'), $max_value), 0) . '%';
}
}
$new_values = implode(',', $new_parts);
$color = $function . '(' . $new_values . ')';
} else {
// hexadecimal handling
if ($color[0] === '#') {
$hex = substr($color, 1);
} else {
$hex = $color;
$color = '#' . $color;
}
$length = strlen($hex);
if ($length !== 3 && $length !== 6) {
return false;
}
if (!ctype_xdigit($hex)) {
return false;
}
}
return $color;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates Color as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_CSS_AlphaValue
*/
protected $alpha;
public function __construct()
{
$this->alpha = new HTMLPurifier_AttrDef_CSS_AlphaValue();
}
/**
* @param string $color
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($color, $config, $context)
{
static $colors = null;
if ($colors === null) {
$colors = $config->get('Core.ColorKeywords');
}
$color = trim($color);
if ($color === '') {
return false;
}
$lower = strtolower($color);
if (isset($colors[$lower])) {
return $colors[$lower];
}
if (preg_match('#(rgb|rgba|hsl|hsla)\(#', $color, $matches) === 1) {
$length = strlen($color);
if (strpos($color, ')') !== $length - 1) {
return false;
}
// get used function : rgb, rgba, hsl or hsla
$function = $matches[1];
$parameters_size = 3;
$alpha_channel = false;
if (substr($function, -1) === 'a') {
$parameters_size = 4;
$alpha_channel = true;
}
/*
* Allowed types for values :
* parameter_position => [type => max_value]
*/
$allowed_types = array(
1 => array('percentage' => 100, 'integer' => 255),
2 => array('percentage' => 100, 'integer' => 255),
3 => array('percentage' => 100, 'integer' => 255),
);
$allow_different_types = false;
if (strpos($function, 'hsl') !== false) {
$allowed_types = array(
1 => array('integer' => 360),
2 => array('percentage' => 100),
3 => array('percentage' => 100),
);
$allow_different_types = true;
}
$values = trim(str_replace($function, '', $color), ' ()');
$parts = explode(',', $values);
if (count($parts) !== $parameters_size) {
return false;
}
$type = false;
$new_parts = array();
$i = 0;
foreach ($parts as $part) {
$i++;
$part = trim($part);
if ($part === '') {
return false;
}
// different check for alpha channel
if ($alpha_channel === true && $i === count($parts)) {
$result = $this->alpha->validate($part, $config, $context);
if ($result === false) {
return false;
}
$new_parts[] = (string)$result;
continue;
}
if (substr($part, -1) === '%') {
$current_type = 'percentage';
} else {
$current_type = 'integer';
}
if (!array_key_exists($current_type, $allowed_types[$i])) {
return false;
}
if (!$type) {
$type = $current_type;
}
if ($allow_different_types === false && $type != $current_type) {
return false;
}
$max_value = $allowed_types[$i][$current_type];
if ($current_type == 'integer') {
// Return value between range 0 -> $max_value
$new_parts[] = (int)max(min($part, $max_value), 0);
} elseif ($current_type == 'percentage') {
$new_parts[] = (float)max(min(rtrim($part, '%'), $max_value), 0) . '%';
}
}
$new_values = implode(',', $new_parts);
$color = $function . '(' . $new_values . ')';
} else {
// hexadecimal handling
if ($color[0] === '#') {
$hex = substr($color, 1);
} else {
$hex = $color;
$color = '#' . $color;
}
$length = strlen($hex);
if ($length !== 3 && $length !== 6) {
return false;
}
if (!ctype_xdigit($hex)) {
return false;
}
}
return $color;
}
}
// vim: et sw=4 sts=4

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@ -1,48 +1,48 @@
<?php
/**
* Allows multiple validators to attempt to validate attribute.
*
* Composite is just what it sounds like: a composite of many validators.
* This means that multiple HTMLPurifier_AttrDef objects will have a whack
* at the string. If one of them passes, that's what is returned. This is
* especially useful for CSS values, which often are a choice between
* an enumerated set of predefined values or a flexible data type.
*/
class HTMLPurifier_AttrDef_CSS_Composite extends HTMLPurifier_AttrDef
{
/**
* List of objects that may process strings.
* @type HTMLPurifier_AttrDef[]
* @todo Make protected
*/
public $defs;
/**
* @param HTMLPurifier_AttrDef[] $defs List of HTMLPurifier_AttrDef objects
*/
public function __construct($defs)
{
$this->defs = $defs;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
foreach ($this->defs as $i => $def) {
$result = $this->defs[$i]->validate($string, $config, $context);
if ($result !== false) {
return $result;
}
}
return false;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Allows multiple validators to attempt to validate attribute.
*
* Composite is just what it sounds like: a composite of many validators.
* This means that multiple HTMLPurifier_AttrDef objects will have a whack
* at the string. If one of them passes, that's what is returned. This is
* especially useful for CSS values, which often are a choice between
* an enumerated set of predefined values or a flexible data type.
*/
class HTMLPurifier_AttrDef_CSS_Composite extends HTMLPurifier_AttrDef
{
/**
* List of objects that may process strings.
* @type HTMLPurifier_AttrDef[]
* @todo Make protected
*/
public $defs;
/**
* @param HTMLPurifier_AttrDef[] $defs List of HTMLPurifier_AttrDef objects
*/
public function __construct($defs)
{
$this->defs = $defs;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
foreach ($this->defs as $i => $def) {
$result = $this->defs[$i]->validate($string, $config, $context);
if ($result !== false) {
return $result;
}
}
return false;
}
}
// vim: et sw=4 sts=4

View file

@ -1,44 +1,44 @@
<?php
/**
* Decorator which enables CSS properties to be disabled for specific elements.
*/
class HTMLPurifier_AttrDef_CSS_DenyElementDecorator extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef
*/
public $def;
/**
* @type string
*/
public $element;
/**
* @param HTMLPurifier_AttrDef $def Definition to wrap
* @param string $element Element to deny
*/
public function __construct($def, $element)
{
$this->def = $def;
$this->element = $element;
}
/**
* Checks if CurrentToken is set and equal to $this->element
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$token = $context->get('CurrentToken', true);
if ($token && $token->name == $this->element) {
return false;
}
return $this->def->validate($string, $config, $context);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Decorator which enables CSS properties to be disabled for specific elements.
*/
class HTMLPurifier_AttrDef_CSS_DenyElementDecorator extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef
*/
public $def;
/**
* @type string
*/
public $element;
/**
* @param HTMLPurifier_AttrDef $def Definition to wrap
* @param string $element Element to deny
*/
public function __construct($def, $element)
{
$this->def = $def;
$this->element = $element;
}
/**
* Checks if CurrentToken is set and equal to $this->element
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$token = $context->get('CurrentToken', true);
if ($token && $token->name == $this->element) {
return false;
}
return $this->def->validate($string, $config, $context);
}
}
// vim: et sw=4 sts=4

View file

@ -1,77 +1,77 @@
<?php
/**
* Microsoft's proprietary filter: CSS property
* @note Currently supports the alpha filter. In the future, this will
* probably need an extensible framework
*/
class HTMLPurifier_AttrDef_CSS_Filter extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_Integer
*/
protected $intValidator;
public function __construct()
{
$this->intValidator = new HTMLPurifier_AttrDef_Integer();
}
/**
* @param string $value
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($value, $config, $context)
{
$value = $this->parseCDATA($value);
if ($value === 'none') {
return $value;
}
// if we looped this we could support multiple filters
$function_length = strcspn($value, '(');
$function = trim(substr($value, 0, $function_length));
if ($function !== 'alpha' &&
$function !== 'Alpha' &&
$function !== 'progid:DXImageTransform.Microsoft.Alpha'
) {
return false;
}
$cursor = $function_length + 1;
$parameters_length = strcspn($value, ')', $cursor);
$parameters = substr($value, $cursor, $parameters_length);
$params = explode(',', $parameters);
$ret_params = array();
$lookup = array();
foreach ($params as $param) {
list($key, $value) = explode('=', $param);
$key = trim($key);
$value = trim($value);
if (isset($lookup[$key])) {
continue;
}
if ($key !== 'opacity') {
continue;
}
$value = $this->intValidator->validate($value, $config, $context);
if ($value === false) {
continue;
}
$int = (int)$value;
if ($int > 100) {
$value = '100';
}
if ($int < 0) {
$value = '0';
}
$ret_params[] = "$key=$value";
$lookup[$key] = true;
}
$ret_parameters = implode(',', $ret_params);
$ret_function = "$function($ret_parameters)";
return $ret_function;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Microsoft's proprietary filter: CSS property
* @note Currently supports the alpha filter. In the future, this will
* probably need an extensible framework
*/
class HTMLPurifier_AttrDef_CSS_Filter extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef_Integer
*/
protected $intValidator;
public function __construct()
{
$this->intValidator = new HTMLPurifier_AttrDef_Integer();
}
/**
* @param string $value
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($value, $config, $context)
{
$value = $this->parseCDATA($value);
if ($value === 'none') {
return $value;
}
// if we looped this we could support multiple filters
$function_length = strcspn($value, '(');
$function = trim(substr($value, 0, $function_length));
if ($function !== 'alpha' &&
$function !== 'Alpha' &&
$function !== 'progid:DXImageTransform.Microsoft.Alpha'
) {
return false;
}
$cursor = $function_length + 1;
$parameters_length = strcspn($value, ')', $cursor);
$parameters = substr($value, $cursor, $parameters_length);
$params = explode(',', $parameters);
$ret_params = array();
$lookup = array();
foreach ($params as $param) {
list($key, $value) = explode('=', $param);
$key = trim($key);
$value = trim($value);
if (isset($lookup[$key])) {
continue;
}
if ($key !== 'opacity') {
continue;
}
$value = $this->intValidator->validate($value, $config, $context);
if ($value === false) {
continue;
}
$int = (int)$value;
if ($int > 100) {
$value = '100';
}
if ($int < 0) {
$value = '0';
}
$ret_params[] = "$key=$value";
$lookup[$key] = true;
}
$ret_parameters = implode(',', $ret_params);
$ret_function = "$function($ret_parameters)";
return $ret_function;
}
}
// vim: et sw=4 sts=4

View file

@ -1,176 +1,176 @@
<?php
/**
* Validates shorthand CSS property font.
*/
class HTMLPurifier_AttrDef_CSS_Font extends HTMLPurifier_AttrDef
{
/**
* Local copy of validators
* @type HTMLPurifier_AttrDef[]
* @note If we moved specific CSS property definitions to their own
* classes instead of having them be assembled at run time by
* CSSDefinition, this wouldn't be necessary. We'd instantiate
* our own copies.
*/
protected $info = array();
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['font-style'] = $def->info['font-style'];
$this->info['font-variant'] = $def->info['font-variant'];
$this->info['font-weight'] = $def->info['font-weight'];
$this->info['font-size'] = $def->info['font-size'];
$this->info['line-height'] = $def->info['line-height'];
$this->info['font-family'] = $def->info['font-family'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $system_fonts = array(
'caption' => true,
'icon' => true,
'menu' => true,
'message-box' => true,
'small-caption' => true,
'status-bar' => true
);
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// check if it's one of the keywords
$lowercase_string = strtolower($string);
if (isset($system_fonts[$lowercase_string])) {
return $lowercase_string;
}
$bits = explode(' ', $string); // bits to process
$stage = 0; // this indicates what we're looking for
$caught = array(); // which stage 0 properties have we caught?
$stage_1 = array('font-style', 'font-variant', 'font-weight');
$final = ''; // output
for ($i = 0, $size = count($bits); $i < $size; $i++) {
if ($bits[$i] === '') {
continue;
}
switch ($stage) {
case 0: // attempting to catch font-style, font-variant or font-weight
foreach ($stage_1 as $validator_name) {
if (isset($caught[$validator_name])) {
continue;
}
$r = $this->info[$validator_name]->validate(
$bits[$i],
$config,
$context
);
if ($r !== false) {
$final .= $r . ' ';
$caught[$validator_name] = true;
break;
}
}
// all three caught, continue on
if (count($caught) >= 3) {
$stage = 1;
}
if ($r !== false) {
break;
}
case 1: // attempting to catch font-size and perhaps line-height
$found_slash = false;
if (strpos($bits[$i], '/') !== false) {
list($font_size, $line_height) =
explode('/', $bits[$i]);
if ($line_height === '') {
// ooh, there's a space after the slash!
$line_height = false;
$found_slash = true;
}
} else {
$font_size = $bits[$i];
$line_height = false;
}
$r = $this->info['font-size']->validate(
$font_size,
$config,
$context
);
if ($r !== false) {
$final .= $r;
// attempt to catch line-height
if ($line_height === false) {
// we need to scroll forward
for ($j = $i + 1; $j < $size; $j++) {
if ($bits[$j] === '') {
continue;
}
if ($bits[$j] === '/') {
if ($found_slash) {
return false;
} else {
$found_slash = true;
continue;
}
}
$line_height = $bits[$j];
break;
}
} else {
// slash already found
$found_slash = true;
$j = $i;
}
if ($found_slash) {
$i = $j;
$r = $this->info['line-height']->validate(
$line_height,
$config,
$context
);
if ($r !== false) {
$final .= '/' . $r;
}
}
$final .= ' ';
$stage = 2;
break;
}
return false;
case 2: // attempting to catch font-family
$font_family =
implode(' ', array_slice($bits, $i, $size - $i));
$r = $this->info['font-family']->validate(
$font_family,
$config,
$context
);
if ($r !== false) {
$final .= $r . ' ';
// processing completed successfully
return rtrim($final);
}
return false;
}
}
return false;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates shorthand CSS property font.
*/
class HTMLPurifier_AttrDef_CSS_Font extends HTMLPurifier_AttrDef
{
/**
* Local copy of validators
* @type HTMLPurifier_AttrDef[]
* @note If we moved specific CSS property definitions to their own
* classes instead of having them be assembled at run time by
* CSSDefinition, this wouldn't be necessary. We'd instantiate
* our own copies.
*/
protected $info = array();
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['font-style'] = $def->info['font-style'];
$this->info['font-variant'] = $def->info['font-variant'];
$this->info['font-weight'] = $def->info['font-weight'];
$this->info['font-size'] = $def->info['font-size'];
$this->info['line-height'] = $def->info['line-height'];
$this->info['font-family'] = $def->info['font-family'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $system_fonts = array(
'caption' => true,
'icon' => true,
'menu' => true,
'message-box' => true,
'small-caption' => true,
'status-bar' => true
);
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// check if it's one of the keywords
$lowercase_string = strtolower($string);
if (isset($system_fonts[$lowercase_string])) {
return $lowercase_string;
}
$bits = explode(' ', $string); // bits to process
$stage = 0; // this indicates what we're looking for
$caught = array(); // which stage 0 properties have we caught?
$stage_1 = array('font-style', 'font-variant', 'font-weight');
$final = ''; // output
for ($i = 0, $size = count($bits); $i < $size; $i++) {
if ($bits[$i] === '') {
continue;
}
switch ($stage) {
case 0: // attempting to catch font-style, font-variant or font-weight
foreach ($stage_1 as $validator_name) {
if (isset($caught[$validator_name])) {
continue;
}
$r = $this->info[$validator_name]->validate(
$bits[$i],
$config,
$context
);
if ($r !== false) {
$final .= $r . ' ';
$caught[$validator_name] = true;
break;
}
}
// all three caught, continue on
if (count($caught) >= 3) {
$stage = 1;
}
if ($r !== false) {
break;
}
case 1: // attempting to catch font-size and perhaps line-height
$found_slash = false;
if (strpos($bits[$i], '/') !== false) {
list($font_size, $line_height) =
explode('/', $bits[$i]);
if ($line_height === '') {
// ooh, there's a space after the slash!
$line_height = false;
$found_slash = true;
}
} else {
$font_size = $bits[$i];
$line_height = false;
}
$r = $this->info['font-size']->validate(
$font_size,
$config,
$context
);
if ($r !== false) {
$final .= $r;
// attempt to catch line-height
if ($line_height === false) {
// we need to scroll forward
for ($j = $i + 1; $j < $size; $j++) {
if ($bits[$j] === '') {
continue;
}
if ($bits[$j] === '/') {
if ($found_slash) {
return false;
} else {
$found_slash = true;
continue;
}
}
$line_height = $bits[$j];
break;
}
} else {
// slash already found
$found_slash = true;
$j = $i;
}
if ($found_slash) {
$i = $j;
$r = $this->info['line-height']->validate(
$line_height,
$config,
$context
);
if ($r !== false) {
$final .= '/' . $r;
}
}
$final .= ' ';
$stage = 2;
break;
}
return false;
case 2: // attempting to catch font-family
$font_family =
implode(' ', array_slice($bits, $i, $size - $i));
$r = $this->info['font-family']->validate(
$font_family,
$config,
$context
);
if ($r !== false) {
$final .= $r . ' ';
// processing completed successfully
return rtrim($final);
}
return false;
}
}
return false;
}
}
// vim: et sw=4 sts=4

View file

@ -1,219 +1,219 @@
<?php
/**
* Validates a font family list according to CSS spec
*/
class HTMLPurifier_AttrDef_CSS_FontFamily extends HTMLPurifier_AttrDef
{
protected $mask = null;
public function __construct()
{
$this->mask = '_- ';
for ($c = 'a'; $c <= 'z'; $c++) {
$this->mask .= $c;
}
for ($c = 'A'; $c <= 'Z'; $c++) {
$this->mask .= $c;
}
for ($c = '0'; $c <= '9'; $c++) {
$this->mask .= $c;
} // cast-y, but should be fine
// special bytes used by UTF-8
for ($i = 0x80; $i <= 0xFF; $i++) {
// We don't bother excluding invalid bytes in this range,
// because the our restriction of well-formed UTF-8 will
// prevent these from ever occurring.
$this->mask .= chr($i);
}
/*
PHP's internal strcspn implementation is
O(length of string * length of mask), making it inefficient
for large masks. However, it's still faster than
preg_match 8)
for (p = s1;;) {
spanp = s2;
do {
if (*spanp == c || p == s1_end) {
return p - s1;
}
} while (spanp++ < (s2_end - 1));
c = *++p;
}
*/
// possible optimization: invert the mask.
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $generic_names = array(
'serif' => true,
'sans-serif' => true,
'monospace' => true,
'fantasy' => true,
'cursive' => true
);
$allowed_fonts = $config->get('CSS.AllowedFonts');
// assume that no font names contain commas in them
$fonts = explode(',', $string);
$final = '';
foreach ($fonts as $font) {
$font = trim($font);
if ($font === '') {
continue;
}
// match a generic name
if (isset($generic_names[$font])) {
if ($allowed_fonts === null || isset($allowed_fonts[$font])) {
$final .= $font . ', ';
}
continue;
}
// match a quoted name
if ($font[0] === '"' || $font[0] === "'") {
$length = strlen($font);
if ($length <= 2) {
continue;
}
$quote = $font[0];
if ($font[$length - 1] !== $quote) {
continue;
}
$font = substr($font, 1, $length - 2);
}
$font = $this->expandCSSEscape($font);
// $font is a pure representation of the font name
if ($allowed_fonts !== null && !isset($allowed_fonts[$font])) {
continue;
}
if (ctype_alnum($font) && $font !== '') {
// very simple font, allow it in unharmed
$final .= $font . ', ';
continue;
}
// bugger out on whitespace. form feed (0C) really
// shouldn't show up regardless
$font = str_replace(array("\n", "\t", "\r", "\x0C"), ' ', $font);
// Here, there are various classes of characters which need
// to be treated differently:
// - Alphanumeric characters are essentially safe. We
// handled these above.
// - Spaces require quoting, though most parsers will do
// the right thing if there aren't any characters that
// can be misinterpreted
// - Dashes rarely occur, but they fairly unproblematic
// for parsing/rendering purposes.
// The above characters cover the majority of Western font
// names.
// - Arbitrary Unicode characters not in ASCII. Because
// most parsers give little thought to Unicode, treatment
// of these codepoints is basically uniform, even for
// punctuation-like codepoints. These characters can
// show up in non-Western pages and are supported by most
// major browsers, for example: " 明朝" is a
// legitimate font-name
// <http://ja.wikipedia.org/wiki/MS_明朝>. See
// the CSS3 spec for more examples:
// <http://www.w3.org/TR/2011/WD-css3-fonts-20110324/localizedfamilynames.png>
// You can see live samples of these on the Internet:
// <http://www.google.co.jp/search?q=font-family++明朝|ゴシック>
// However, most of these fonts have ASCII equivalents:
// for example, 'MS Mincho', and it's considered
// professional to use ASCII font names instead of
// Unicode font names. Thanks Takeshi Terada for
// providing this information.
// The following characters, to my knowledge, have not been
// used to name font names.
// - Single quote. While theoretically you might find a
// font name that has a single quote in its name (serving
// as an apostrophe, e.g. Dave's Scribble), I haven't
// been able to find any actual examples of this.
// Internet Explorer's cssText translation (which I
// believe is invoked by innerHTML) normalizes any
// quoting to single quotes, and fails to escape single
// quotes. (Note that this is not IE's behavior for all
// CSS properties, just some sort of special casing for
// font-family). So a single quote *cannot* be used
// safely in the font-family context if there will be an
// innerHTML/cssText translation. Note that Firefox 3.x
// does this too.
// - Double quote. In IE, these get normalized to
// single-quotes, no matter what the encoding. (Fun
// fact, in IE8, the 'content' CSS property gained
// support, where they special cased to preserve encoded
// double quotes, but still translate unadorned double
// quotes into single quotes.) So, because their
// fixpoint behavior is identical to single quotes, they
// cannot be allowed either. Firefox 3.x displays
// single-quote style behavior.
// - Backslashes are reduced by one (so \\ -> \) every
// iteration, so they cannot be used safely. This shows
// up in IE7, IE8 and FF3
// - Semicolons, commas and backticks are handled properly.
// - The rest of the ASCII punctuation is handled properly.
// We haven't checked what browsers do to unadorned
// versions, but this is not important as long as the
// browser doesn't /remove/ surrounding quotes (as IE does
// for HTML).
//
// With these results in hand, we conclude that there are
// various levels of safety:
// - Paranoid: alphanumeric, spaces and dashes(?)
// - International: Paranoid + non-ASCII Unicode
// - Edgy: Everything except quotes, backslashes
// - NoJS: Standards compliance, e.g. sod IE. Note that
// with some judicious character escaping (since certain
// types of escaping doesn't work) this is theoretically
// OK as long as innerHTML/cssText is not called.
// We believe that international is a reasonable default
// (that we will implement now), and once we do more
// extensive research, we may feel comfortable with dropping
// it down to edgy.
// Edgy: alphanumeric, spaces, dashes, underscores and Unicode. Use of
// str(c)spn assumes that the string was already well formed
// Unicode (which of course it is).
if (strspn($font, $this->mask) !== strlen($font)) {
continue;
}
// Historical:
// In the absence of innerHTML/cssText, these ugly
// transforms don't pose a security risk (as \\ and \"
// might--these escapes are not supported by most browsers).
// We could try to be clever and use single-quote wrapping
// when there is a double quote present, but I have choosen
// not to implement that. (NOTE: you can reduce the amount
// of escapes by one depending on what quoting style you use)
// $font = str_replace('\\', '\\5C ', $font);
// $font = str_replace('"', '\\22 ', $font);
// $font = str_replace("'", '\\27 ', $font);
// font possibly with spaces, requires quoting
$final .= "'$font', ";
}
$final = rtrim($final, ', ');
if ($final === '') {
return false;
}
return $final;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a font family list according to CSS spec
*/
class HTMLPurifier_AttrDef_CSS_FontFamily extends HTMLPurifier_AttrDef
{
protected $mask = null;
public function __construct()
{
$this->mask = '_- ';
for ($c = 'a'; $c <= 'z'; $c++) {
$this->mask .= $c;
}
for ($c = 'A'; $c <= 'Z'; $c++) {
$this->mask .= $c;
}
for ($c = '0'; $c <= '9'; $c++) {
$this->mask .= $c;
} // cast-y, but should be fine
// special bytes used by UTF-8
for ($i = 0x80; $i <= 0xFF; $i++) {
// We don't bother excluding invalid bytes in this range,
// because the our restriction of well-formed UTF-8 will
// prevent these from ever occurring.
$this->mask .= chr($i);
}
/*
PHP's internal strcspn implementation is
O(length of string * length of mask), making it inefficient
for large masks. However, it's still faster than
preg_match 8)
for (p = s1;;) {
spanp = s2;
do {
if (*spanp == c || p == s1_end) {
return p - s1;
}
} while (spanp++ < (s2_end - 1));
c = *++p;
}
*/
// possible optimization: invert the mask.
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $generic_names = array(
'serif' => true,
'sans-serif' => true,
'monospace' => true,
'fantasy' => true,
'cursive' => true
);
$allowed_fonts = $config->get('CSS.AllowedFonts');
// assume that no font names contain commas in them
$fonts = explode(',', $string);
$final = '';
foreach ($fonts as $font) {
$font = trim($font);
if ($font === '') {
continue;
}
// match a generic name
if (isset($generic_names[$font])) {
if ($allowed_fonts === null || isset($allowed_fonts[$font])) {
$final .= $font . ', ';
}
continue;
}
// match a quoted name
if ($font[0] === '"' || $font[0] === "'") {
$length = strlen($font);
if ($length <= 2) {
continue;
}
$quote = $font[0];
if ($font[$length - 1] !== $quote) {
continue;
}
$font = substr($font, 1, $length - 2);
}
$font = $this->expandCSSEscape($font);
// $font is a pure representation of the font name
if ($allowed_fonts !== null && !isset($allowed_fonts[$font])) {
continue;
}
if (ctype_alnum($font) && $font !== '') {
// very simple font, allow it in unharmed
$final .= $font . ', ';
continue;
}
// bugger out on whitespace. form feed (0C) really
// shouldn't show up regardless
$font = str_replace(array("\n", "\t", "\r", "\x0C"), ' ', $font);
// Here, there are various classes of characters which need
// to be treated differently:
// - Alphanumeric characters are essentially safe. We
// handled these above.
// - Spaces require quoting, though most parsers will do
// the right thing if there aren't any characters that
// can be misinterpreted
// - Dashes rarely occur, but they fairly unproblematic
// for parsing/rendering purposes.
// The above characters cover the majority of Western font
// names.
// - Arbitrary Unicode characters not in ASCII. Because
// most parsers give little thought to Unicode, treatment
// of these codepoints is basically uniform, even for
// punctuation-like codepoints. These characters can
// show up in non-Western pages and are supported by most
// major browsers, for example: " 明朝" is a
// legitimate font-name
// <http://ja.wikipedia.org/wiki/MS_明朝>. See
// the CSS3 spec for more examples:
// <http://www.w3.org/TR/2011/WD-css3-fonts-20110324/localizedfamilynames.png>
// You can see live samples of these on the Internet:
// <http://www.google.co.jp/search?q=font-family++明朝|ゴシック>
// However, most of these fonts have ASCII equivalents:
// for example, 'MS Mincho', and it's considered
// professional to use ASCII font names instead of
// Unicode font names. Thanks Takeshi Terada for
// providing this information.
// The following characters, to my knowledge, have not been
// used to name font names.
// - Single quote. While theoretically you might find a
// font name that has a single quote in its name (serving
// as an apostrophe, e.g. Dave's Scribble), I haven't
// been able to find any actual examples of this.
// Internet Explorer's cssText translation (which I
// believe is invoked by innerHTML) normalizes any
// quoting to single quotes, and fails to escape single
// quotes. (Note that this is not IE's behavior for all
// CSS properties, just some sort of special casing for
// font-family). So a single quote *cannot* be used
// safely in the font-family context if there will be an
// innerHTML/cssText translation. Note that Firefox 3.x
// does this too.
// - Double quote. In IE, these get normalized to
// single-quotes, no matter what the encoding. (Fun
// fact, in IE8, the 'content' CSS property gained
// support, where they special cased to preserve encoded
// double quotes, but still translate unadorned double
// quotes into single quotes.) So, because their
// fixpoint behavior is identical to single quotes, they
// cannot be allowed either. Firefox 3.x displays
// single-quote style behavior.
// - Backslashes are reduced by one (so \\ -> \) every
// iteration, so they cannot be used safely. This shows
// up in IE7, IE8 and FF3
// - Semicolons, commas and backticks are handled properly.
// - The rest of the ASCII punctuation is handled properly.
// We haven't checked what browsers do to unadorned
// versions, but this is not important as long as the
// browser doesn't /remove/ surrounding quotes (as IE does
// for HTML).
//
// With these results in hand, we conclude that there are
// various levels of safety:
// - Paranoid: alphanumeric, spaces and dashes(?)
// - International: Paranoid + non-ASCII Unicode
// - Edgy: Everything except quotes, backslashes
// - NoJS: Standards compliance, e.g. sod IE. Note that
// with some judicious character escaping (since certain
// types of escaping doesn't work) this is theoretically
// OK as long as innerHTML/cssText is not called.
// We believe that international is a reasonable default
// (that we will implement now), and once we do more
// extensive research, we may feel comfortable with dropping
// it down to edgy.
// Edgy: alphanumeric, spaces, dashes, underscores and Unicode. Use of
// str(c)spn assumes that the string was already well formed
// Unicode (which of course it is).
if (strspn($font, $this->mask) !== strlen($font)) {
continue;
}
// Historical:
// In the absence of innerHTML/cssText, these ugly
// transforms don't pose a security risk (as \\ and \"
// might--these escapes are not supported by most browsers).
// We could try to be clever and use single-quote wrapping
// when there is a double quote present, but I have choosen
// not to implement that. (NOTE: you can reduce the amount
// of escapes by one depending on what quoting style you use)
// $font = str_replace('\\', '\\5C ', $font);
// $font = str_replace('"', '\\22 ', $font);
// $font = str_replace("'", '\\27 ', $font);
// font possibly with spaces, requires quoting
$final .= "'$font', ";
}
$final = rtrim($final, ', ');
if ($final === '') {
return false;
}
return $final;
}
}
// vim: et sw=4 sts=4

View file

@ -1,32 +1,32 @@
<?php
/**
* Validates based on {ident} CSS grammar production
*/
class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
// early abort: '' and '0' (strings that convert to false) are invalid
if (!$string) {
return false;
}
$pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/';
if (!preg_match($pattern, $string)) {
return false;
}
return $string;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates based on {ident} CSS grammar production
*/
class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
// early abort: '' and '0' (strings that convert to false) are invalid
if (!$string) {
return false;
}
$pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/';
if (!preg_match($pattern, $string)) {
return false;
}
return $string;
}
}
// vim: et sw=4 sts=4

View file

@ -1,56 +1,56 @@
<?php
/**
* Decorator which enables !important to be used in CSS values.
*/
class HTMLPurifier_AttrDef_CSS_ImportantDecorator extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef
*/
public $def;
/**
* @type bool
*/
public $allow;
/**
* @param HTMLPurifier_AttrDef $def Definition to wrap
* @param bool $allow Whether or not to allow !important
*/
public function __construct($def, $allow = false)
{
$this->def = $def;
$this->allow = $allow;
}
/**
* Intercepts and removes !important if necessary
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// test for ! and important tokens
$string = trim($string);
$is_important = false;
// :TODO: optimization: test directly for !important and ! important
if (strlen($string) >= 9 && substr($string, -9) === 'important') {
$temp = rtrim(substr($string, 0, -9));
// use a temp, because we might want to restore important
if (strlen($temp) >= 1 && substr($temp, -1) === '!') {
$string = rtrim(substr($temp, 0, -1));
$is_important = true;
}
}
$string = $this->def->validate($string, $config, $context);
if ($this->allow && $is_important) {
$string .= ' !important';
}
return $string;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Decorator which enables !important to be used in CSS values.
*/
class HTMLPurifier_AttrDef_CSS_ImportantDecorator extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_AttrDef
*/
public $def;
/**
* @type bool
*/
public $allow;
/**
* @param HTMLPurifier_AttrDef $def Definition to wrap
* @param bool $allow Whether or not to allow !important
*/
public function __construct($def, $allow = false)
{
$this->def = $def;
$this->allow = $allow;
}
/**
* Intercepts and removes !important if necessary
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// test for ! and important tokens
$string = trim($string);
$is_important = false;
// :TODO: optimization: test directly for !important and ! important
if (strlen($string) >= 9 && substr($string, -9) === 'important') {
$temp = rtrim(substr($string, 0, -9));
// use a temp, because we might want to restore important
if (strlen($temp) >= 1 && substr($temp, -1) === '!') {
$string = rtrim(substr($temp, 0, -1));
$is_important = true;
}
}
$string = $this->def->validate($string, $config, $context);
if ($this->allow && $is_important) {
$string .= ' !important';
}
return $string;
}
}
// vim: et sw=4 sts=4

View file

@ -1,77 +1,77 @@
<?php
/**
* Represents a Length as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Length extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_Length|string
*/
protected $min;
/**
* @type HTMLPurifier_Length|string
*/
protected $max;
/**
* @param HTMLPurifier_Length|string $min Minimum length, or null for no bound. String is also acceptable.
* @param HTMLPurifier_Length|string $max Maximum length, or null for no bound. String is also acceptable.
*/
public function __construct($min = null, $max = null)
{
$this->min = $min !== null ? HTMLPurifier_Length::make($min) : null;
$this->max = $max !== null ? HTMLPurifier_Length::make($max) : null;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
// Optimizations
if ($string === '') {
return false;
}
if ($string === '0') {
return '0';
}
if (strlen($string) === 1) {
return false;
}
$length = HTMLPurifier_Length::make($string);
if (!$length->isValid()) {
return false;
}
if ($this->min) {
$c = $length->compareTo($this->min);
if ($c === false) {
return false;
}
if ($c < 0) {
return false;
}
}
if ($this->max) {
$c = $length->compareTo($this->max);
if ($c === false) {
return false;
}
if ($c > 0) {
return false;
}
}
return $length->toString();
}
}
// vim: et sw=4 sts=4
<?php
/**
* Represents a Length as defined by CSS.
*/
class HTMLPurifier_AttrDef_CSS_Length extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_Length|string
*/
protected $min;
/**
* @type HTMLPurifier_Length|string
*/
protected $max;
/**
* @param HTMLPurifier_Length|string $min Minimum length, or null for no bound. String is also acceptable.
* @param HTMLPurifier_Length|string $max Maximum length, or null for no bound. String is also acceptable.
*/
public function __construct($min = null, $max = null)
{
$this->min = $min !== null ? HTMLPurifier_Length::make($min) : null;
$this->max = $max !== null ? HTMLPurifier_Length::make($max) : null;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
// Optimizations
if ($string === '') {
return false;
}
if ($string === '0') {
return '0';
}
if (strlen($string) === 1) {
return false;
}
$length = HTMLPurifier_Length::make($string);
if (!$length->isValid()) {
return false;
}
if ($this->min) {
$c = $length->compareTo($this->min);
if ($c === false) {
return false;
}
if ($c < 0) {
return false;
}
}
if ($this->max) {
$c = $length->compareTo($this->max);
if ($c === false) {
return false;
}
if ($c > 0) {
return false;
}
}
return $length->toString();
}
}
// vim: et sw=4 sts=4

View file

@ -1,112 +1,112 @@
<?php
/**
* Validates shorthand CSS property list-style.
* @warning Does not support url tokens that have internal spaces.
*/
class HTMLPurifier_AttrDef_CSS_ListStyle extends HTMLPurifier_AttrDef
{
/**
* Local copy of validators.
* @type HTMLPurifier_AttrDef[]
* @note See HTMLPurifier_AttrDef_CSS_Font::$info for a similar impl.
*/
protected $info;
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['list-style-type'] = $def->info['list-style-type'];
$this->info['list-style-position'] = $def->info['list-style-position'];
$this->info['list-style-image'] = $def->info['list-style-image'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// assumes URI doesn't have spaces in it
$bits = explode(' ', strtolower($string)); // bits to process
$caught = array();
$caught['type'] = false;
$caught['position'] = false;
$caught['image'] = false;
$i = 0; // number of catches
$none = false;
foreach ($bits as $bit) {
if ($i >= 3) {
return;
} // optimization bit
if ($bit === '') {
continue;
}
foreach ($caught as $key => $status) {
if ($status !== false) {
continue;
}
$r = $this->info['list-style-' . $key]->validate($bit, $config, $context);
if ($r === false) {
continue;
}
if ($r === 'none') {
if ($none) {
continue;
} else {
$none = true;
}
if ($key == 'image') {
continue;
}
}
$caught[$key] = $r;
$i++;
break;
}
}
if (!$i) {
return false;
}
$ret = array();
// construct type
if ($caught['type']) {
$ret[] = $caught['type'];
}
// construct image
if ($caught['image']) {
$ret[] = $caught['image'];
}
// construct position
if ($caught['position']) {
$ret[] = $caught['position'];
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates shorthand CSS property list-style.
* @warning Does not support url tokens that have internal spaces.
*/
class HTMLPurifier_AttrDef_CSS_ListStyle extends HTMLPurifier_AttrDef
{
/**
* Local copy of validators.
* @type HTMLPurifier_AttrDef[]
* @note See HTMLPurifier_AttrDef_CSS_Font::$info for a similar impl.
*/
protected $info;
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['list-style-type'] = $def->info['list-style-type'];
$this->info['list-style-position'] = $def->info['list-style-position'];
$this->info['list-style-image'] = $def->info['list-style-image'];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// regular pre-processing
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
// assumes URI doesn't have spaces in it
$bits = explode(' ', strtolower($string)); // bits to process
$caught = array();
$caught['type'] = false;
$caught['position'] = false;
$caught['image'] = false;
$i = 0; // number of catches
$none = false;
foreach ($bits as $bit) {
if ($i >= 3) {
return;
} // optimization bit
if ($bit === '') {
continue;
}
foreach ($caught as $key => $status) {
if ($status !== false) {
continue;
}
$r = $this->info['list-style-' . $key]->validate($bit, $config, $context);
if ($r === false) {
continue;
}
if ($r === 'none') {
if ($none) {
continue;
} else {
$none = true;
}
if ($key == 'image') {
continue;
}
}
$caught[$key] = $r;
$i++;
break;
}
}
if (!$i) {
return false;
}
$ret = array();
// construct type
if ($caught['type']) {
$ret[] = $caught['type'];
}
// construct image
if ($caught['image']) {
$ret[] = $caught['image'];
}
// construct position
if ($caught['position']) {
$ret[] = $caught['position'];
}
if (empty($ret)) {
return false;
}
return implode(' ', $ret);
}
}
// vim: et sw=4 sts=4

View file

@ -1,71 +1,71 @@
<?php
/**
* Framework class for strings that involve multiple values.
*
* Certain CSS properties such as border-width and margin allow multiple
* lengths to be specified. This class can take a vanilla border-width
* definition and multiply it, usually into a max of four.
*
* @note Even though the CSS specification isn't clear about it, inherit
* can only be used alone: it will never manifest as part of a multi
* shorthand declaration. Thus, this class does not allow inherit.
*/
class HTMLPurifier_AttrDef_CSS_Multiple extends HTMLPurifier_AttrDef
{
/**
* Instance of component definition to defer validation to.
* @type HTMLPurifier_AttrDef
* @todo Make protected
*/
public $single;
/**
* Max number of values allowed.
* @todo Make protected
*/
public $max;
/**
* @param HTMLPurifier_AttrDef $single HTMLPurifier_AttrDef to multiply
* @param int $max Max number of values allowed (usually four)
*/
public function __construct($single, $max = 4)
{
$this->single = $single;
$this->max = $max;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->mungeRgb($this->parseCDATA($string));
if ($string === '') {
return false;
}
$parts = explode(' ', $string); // parseCDATA replaced \r, \t and \n
$length = count($parts);
$final = '';
for ($i = 0, $num = 0; $i < $length && $num < $this->max; $i++) {
if (ctype_space($parts[$i])) {
continue;
}
$result = $this->single->validate($parts[$i], $config, $context);
if ($result !== false) {
$final .= $result . ' ';
$num++;
}
}
if ($final === '') {
return false;
}
return rtrim($final);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Framework class for strings that involve multiple values.
*
* Certain CSS properties such as border-width and margin allow multiple
* lengths to be specified. This class can take a vanilla border-width
* definition and multiply it, usually into a max of four.
*
* @note Even though the CSS specification isn't clear about it, inherit
* can only be used alone: it will never manifest as part of a multi
* shorthand declaration. Thus, this class does not allow inherit.
*/
class HTMLPurifier_AttrDef_CSS_Multiple extends HTMLPurifier_AttrDef
{
/**
* Instance of component definition to defer validation to.
* @type HTMLPurifier_AttrDef
* @todo Make protected
*/
public $single;
/**
* Max number of values allowed.
* @todo Make protected
*/
public $max;
/**
* @param HTMLPurifier_AttrDef $single HTMLPurifier_AttrDef to multiply
* @param int $max Max number of values allowed (usually four)
*/
public function __construct($single, $max = 4)
{
$this->single = $single;
$this->max = $max;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->mungeRgb($this->parseCDATA($string));
if ($string === '') {
return false;
}
$parts = explode(' ', $string); // parseCDATA replaced \r, \t and \n
$length = count($parts);
$final = '';
for ($i = 0, $num = 0; $i < $length && $num < $this->max; $i++) {
if (ctype_space($parts[$i])) {
continue;
}
$result = $this->single->validate($parts[$i], $config, $context);
if ($result !== false) {
$final .= $result . ' ';
$num++;
}
}
if ($final === '') {
return false;
}
return rtrim($final);
}
}
// vim: et sw=4 sts=4

View file

@ -1,90 +1,90 @@
<?php
/**
* Validates a number as defined by the CSS spec.
*/
class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
{
/**
* Indicates whether or not only positive values are allowed.
* @type bool
*/
protected $non_negative = false;
/**
* @param bool $non_negative indicates whether negatives are forbidden
*/
public function __construct($non_negative = false)
{
$this->non_negative = $non_negative;
}
/**
* @param string $number
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string|bool
* @warning Some contexts do not pass $config, $context. These
* variables should not be used without checking HTMLPurifier_Length
*/
public function validate($number, $config, $context)
{
$number = $this->parseCDATA($number);
if ($number === '') {
return false;
}
if ($number === '0') {
return '0';
}
$sign = '';
switch ($number[0]) {
case '-':
if ($this->non_negative) {
return false;
}
$sign = '-';
case '+':
$number = substr($number, 1);
}
if (ctype_digit($number)) {
$number = ltrim($number, '0');
return $number ? $sign . $number : '0';
}
// Period is the only non-numeric character allowed
if (strpos($number, '.') === false) {
return false;
}
list($left, $right) = explode('.', $number, 2);
if ($left === '' && $right === '') {
return false;
}
if ($left !== '' && !ctype_digit($left)) {
return false;
}
// Remove leading zeros until positive number or a zero stays left
if (ltrim($left, '0') != '') {
$left = ltrim($left, '0');
} else {
$left = '0';
}
$right = rtrim($right, '0');
if ($right === '') {
return $left ? $sign . $left : '0';
} elseif (!ctype_digit($right)) {
return false;
}
return $sign . $left . '.' . $right;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a number as defined by the CSS spec.
*/
class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
{
/**
* Indicates whether or not only positive values are allowed.
* @type bool
*/
protected $non_negative = false;
/**
* @param bool $non_negative indicates whether negatives are forbidden
*/
public function __construct($non_negative = false)
{
$this->non_negative = $non_negative;
}
/**
* @param string $number
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string|bool
* @warning Some contexts do not pass $config, $context. These
* variables should not be used without checking HTMLPurifier_Length
*/
public function validate($number, $config, $context)
{
$number = $this->parseCDATA($number);
if ($number === '') {
return false;
}
if ($number === '0') {
return '0';
}
$sign = '';
switch ($number[0]) {
case '-':
if ($this->non_negative) {
return false;
}
$sign = '-';
case '+':
$number = substr($number, 1);
}
if (ctype_digit($number)) {
$number = ltrim($number, '0');
return $number ? $sign . $number : '0';
}
// Period is the only non-numeric character allowed
if (strpos($number, '.') === false) {
return false;
}
list($left, $right) = explode('.', $number, 2);
if ($left === '' && $right === '') {
return false;
}
if ($left !== '' && !ctype_digit($left)) {
return false;
}
// Remove leading zeros until positive number or a zero stays left
if (ltrim($left, '0') != '') {
$left = ltrim($left, '0');
} else {
$left = '0';
}
$right = rtrim($right, '0');
if ($right === '') {
return $left ? $sign . $left : '0';
} elseif (!ctype_digit($right)) {
return false;
}
return $sign . $left . '.' . $right;
}
}
// vim: et sw=4 sts=4

View file

@ -1,54 +1,54 @@
<?php
/**
* Validates a Percentage as defined by the CSS spec.
*/
class HTMLPurifier_AttrDef_CSS_Percentage extends HTMLPurifier_AttrDef
{
/**
* Instance to defer number validation to.
* @type HTMLPurifier_AttrDef_CSS_Number
*/
protected $number_def;
/**
* @param bool $non_negative Whether to forbid negative values
*/
public function __construct($non_negative = false)
{
$this->number_def = new HTMLPurifier_AttrDef_CSS_Number($non_negative);
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
$length = strlen($string);
if ($length === 1) {
return false;
}
if ($string[$length - 1] !== '%') {
return false;
}
$number = substr($string, 0, $length - 1);
$number = $this->number_def->validate($number, $config, $context);
if ($number === false) {
return false;
}
return "$number%";
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a Percentage as defined by the CSS spec.
*/
class HTMLPurifier_AttrDef_CSS_Percentage extends HTMLPurifier_AttrDef
{
/**
* Instance to defer number validation to.
* @type HTMLPurifier_AttrDef_CSS_Number
*/
protected $number_def;
/**
* @param bool $non_negative Whether to forbid negative values
*/
public function __construct($non_negative = false)
{
$this->number_def = new HTMLPurifier_AttrDef_CSS_Number($non_negative);
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
if ($string === '') {
return false;
}
$length = strlen($string);
if ($length === 1) {
return false;
}
if ($string[$length - 1] !== '%') {
return false;
}
$number = substr($string, 0, $length - 1);
$number = $this->number_def->validate($number, $config, $context);
if ($number === false) {
return false;
}
return "$number%";
}
}
// vim: et sw=4 sts=4

View file

@ -1,46 +1,46 @@
<?php
/**
* Validates the value for the CSS property text-decoration
* @note This class could be generalized into a version that acts sort of
* like Enum except you can compound the allowed values.
*/
class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $allowed_values = array(
'line-through' => true,
'overline' => true,
'underline' => true,
);
$string = strtolower($this->parseCDATA($string));
if ($string === 'none') {
return $string;
}
$parts = explode(' ', $string);
$final = '';
foreach ($parts as $part) {
if (isset($allowed_values[$part])) {
$final .= $part . ' ';
}
}
$final = rtrim($final);
if ($final === '') {
return false;
}
return $final;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the value for the CSS property text-decoration
* @note This class could be generalized into a version that acts sort of
* like Enum except you can compound the allowed values.
*/
class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $allowed_values = array(
'line-through' => true,
'overline' => true,
'underline' => true,
);
$string = strtolower($this->parseCDATA($string));
if ($string === 'none') {
return $string;
}
$parts = explode(' ', $string);
$final = '';
foreach ($parts as $part) {
if (isset($allowed_values[$part])) {
$final .= $part . ' ';
}
}
$final = rtrim($final);
if ($final === '') {
return false;
}
return $final;
}
}
// vim: et sw=4 sts=4

View file

@ -1,77 +1,77 @@
<?php
/**
* Validates a URI in CSS syntax, which uses url('http://example.com')
* @note While theoretically speaking a URI in a CSS document could
* be non-embedded, as of CSS2 there is no such usage so we're
* generalizing it. This may need to be changed in the future.
* @warning Since HTMLPurifier_AttrDef_CSS blindly uses semicolons as
* the separator, you cannot put a literal semicolon in
* in the URI. Try percent encoding it, in that case.
*/
class HTMLPurifier_AttrDef_CSS_URI extends HTMLPurifier_AttrDef_URI
{
public function __construct()
{
parent::__construct(true); // always embedded
}
/**
* @param string $uri_string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($uri_string, $config, $context)
{
// parse the URI out of the string and then pass it onto
// the parent object
$uri_string = $this->parseCDATA($uri_string);
if (strpos($uri_string, 'url(') !== 0) {
return false;
}
$uri_string = substr($uri_string, 4);
if (strlen($uri_string) == 0) {
return false;
}
$new_length = strlen($uri_string) - 1;
if ($uri_string[$new_length] != ')') {
return false;
}
$uri = trim(substr($uri_string, 0, $new_length));
if (!empty($uri) && ($uri[0] == "'" || $uri[0] == '"')) {
$quote = $uri[0];
$new_length = strlen($uri) - 1;
if ($uri[$new_length] !== $quote) {
return false;
}
$uri = substr($uri, 1, $new_length - 1);
}
$uri = $this->expandCSSEscape($uri);
$result = parent::validate($uri, $config, $context);
if ($result === false) {
return false;
}
// extra sanity check; should have been done by URI
$result = str_replace(array('"', "\\", "\n", "\x0c", "\r"), "", $result);
// suspicious characters are ()'; we're going to percent encode
// them for safety.
$result = str_replace(array('(', ')', "'"), array('%28', '%29', '%27'), $result);
// there's an extra bug where ampersands lose their escaping on
// an innerHTML cycle, so a very unlucky query parameter could
// then change the meaning of the URL. Unfortunately, there's
// not much we can do about that...
return "url(\"$result\")";
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a URI in CSS syntax, which uses url('http://example.com')
* @note While theoretically speaking a URI in a CSS document could
* be non-embedded, as of CSS2 there is no such usage so we're
* generalizing it. This may need to be changed in the future.
* @warning Since HTMLPurifier_AttrDef_CSS blindly uses semicolons as
* the separator, you cannot put a literal semicolon in
* in the URI. Try percent encoding it, in that case.
*/
class HTMLPurifier_AttrDef_CSS_URI extends HTMLPurifier_AttrDef_URI
{
public function __construct()
{
parent::__construct(true); // always embedded
}
/**
* @param string $uri_string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($uri_string, $config, $context)
{
// parse the URI out of the string and then pass it onto
// the parent object
$uri_string = $this->parseCDATA($uri_string);
if (strpos($uri_string, 'url(') !== 0) {
return false;
}
$uri_string = substr($uri_string, 4);
if (strlen($uri_string) == 0) {
return false;
}
$new_length = strlen($uri_string) - 1;
if ($uri_string[$new_length] != ')') {
return false;
}
$uri = trim(substr($uri_string, 0, $new_length));
if (!empty($uri) && ($uri[0] == "'" || $uri[0] == '"')) {
$quote = $uri[0];
$new_length = strlen($uri) - 1;
if ($uri[$new_length] !== $quote) {
return false;
}
$uri = substr($uri, 1, $new_length - 1);
}
$uri = $this->expandCSSEscape($uri);
$result = parent::validate($uri, $config, $context);
if ($result === false) {
return false;
}
// extra sanity check; should have been done by URI
$result = str_replace(array('"', "\\", "\n", "\x0c", "\r"), "", $result);
// suspicious characters are ()'; we're going to percent encode
// them for safety.
$result = str_replace(array('(', ')', "'"), array('%28', '%29', '%27'), $result);
// there's an extra bug where ampersands lose their escaping on
// an innerHTML cycle, so a very unlucky query parameter could
// then change the meaning of the URL. Unfortunately, there's
// not much we can do about that...
return "url(\"$result\")";
}
}
// vim: et sw=4 sts=4

View file

@ -1,44 +1,44 @@
<?php
/**
* Dummy AttrDef that mimics another AttrDef, BUT it generates clones
* with make.
*/
class HTMLPurifier_AttrDef_Clone extends HTMLPurifier_AttrDef
{
/**
* What we're cloning.
* @type HTMLPurifier_AttrDef
*/
protected $clone;
/**
* @param HTMLPurifier_AttrDef $clone
*/
public function __construct($clone)
{
$this->clone = $clone;
}
/**
* @param string $v
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($v, $config, $context)
{
return $this->clone->validate($v, $config, $context);
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef
*/
public function make($string)
{
return clone $this->clone;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Dummy AttrDef that mimics another AttrDef, BUT it generates clones
* with make.
*/
class HTMLPurifier_AttrDef_Clone extends HTMLPurifier_AttrDef
{
/**
* What we're cloning.
* @type HTMLPurifier_AttrDef
*/
protected $clone;
/**
* @param HTMLPurifier_AttrDef $clone
*/
public function __construct($clone)
{
$this->clone = $clone;
}
/**
* @param string $v
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($v, $config, $context)
{
return $this->clone->validate($v, $config, $context);
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef
*/
public function make($string)
{
return clone $this->clone;
}
}
// vim: et sw=4 sts=4

View file

@ -1,73 +1,73 @@
<?php
// Enum = Enumerated
/**
* Validates a keyword against a list of valid values.
* @warning The case-insensitive compare of this function uses PHP's
* built-in strtolower and ctype_lower functions, which may
* cause problems with international comparisons
*/
class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
{
/**
* Lookup table of valid values.
* @type array
* @todo Make protected
*/
public $valid_values = array();
/**
* Bool indicating whether or not enumeration is case sensitive.
* @note In general this is always case insensitive.
*/
protected $case_sensitive = false; // values according to W3C spec
/**
* @param array $valid_values List of valid values
* @param bool $case_sensitive Whether or not case sensitive
*/
public function __construct($valid_values = array(), $case_sensitive = false)
{
$this->valid_values = array_flip($valid_values);
$this->case_sensitive = $case_sensitive;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if (!$this->case_sensitive) {
// we may want to do full case-insensitive libraries
$string = ctype_lower($string) ? $string : strtolower($string);
}
$result = isset($this->valid_values[$string]);
return $result ? $string : false;
}
/**
* @param string $string In form of comma-delimited list of case-insensitive
* valid values. Example: "foo,bar,baz". Prepend "s:" to make
* case sensitive
* @return HTMLPurifier_AttrDef_Enum
*/
public function make($string)
{
if (strlen($string) > 2 && $string[0] == 's' && $string[1] == ':') {
$string = substr($string, 2);
$sensitive = true;
} else {
$sensitive = false;
}
$values = explode(',', $string);
return new HTMLPurifier_AttrDef_Enum($values, $sensitive);
}
}
// vim: et sw=4 sts=4
<?php
// Enum = Enumerated
/**
* Validates a keyword against a list of valid values.
* @warning The case-insensitive compare of this function uses PHP's
* built-in strtolower and ctype_lower functions, which may
* cause problems with international comparisons
*/
class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
{
/**
* Lookup table of valid values.
* @type array
* @todo Make protected
*/
public $valid_values = array();
/**
* Bool indicating whether or not enumeration is case sensitive.
* @note In general this is always case insensitive.
*/
protected $case_sensitive = false; // values according to W3C spec
/**
* @param array $valid_values List of valid values
* @param bool $case_sensitive Whether or not case sensitive
*/
public function __construct($valid_values = array(), $case_sensitive = false)
{
$this->valid_values = array_flip($valid_values);
$this->case_sensitive = $case_sensitive;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if (!$this->case_sensitive) {
// we may want to do full case-insensitive libraries
$string = ctype_lower($string) ? $string : strtolower($string);
}
$result = isset($this->valid_values[$string]);
return $result ? $string : false;
}
/**
* @param string $string In form of comma-delimited list of case-insensitive
* valid values. Example: "foo,bar,baz". Prepend "s:" to make
* case sensitive
* @return HTMLPurifier_AttrDef_Enum
*/
public function make($string)
{
if (strlen($string) > 2 && $string[0] == 's' && $string[1] == ':') {
$string = substr($string, 2);
$sensitive = true;
} else {
$sensitive = false;
}
$values = explode(',', $string);
return new HTMLPurifier_AttrDef_Enum($values, $sensitive);
}
}
// vim: et sw=4 sts=4

View file

@ -1,48 +1,48 @@
<?php
/**
* Validates a boolean attribute
*/
class HTMLPurifier_AttrDef_HTML_Bool extends HTMLPurifier_AttrDef
{
/**
* @type string
*/
protected $name;
/**
* @type bool
*/
public $minimized = true;
/**
* @param bool|string $name
*/
public function __construct($name = false)
{
$this->name = $name;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
return $this->name;
}
/**
* @param string $string Name of attribute
* @return HTMLPurifier_AttrDef_HTML_Bool
*/
public function make($string)
{
return new HTMLPurifier_AttrDef_HTML_Bool($string);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a boolean attribute
*/
class HTMLPurifier_AttrDef_HTML_Bool extends HTMLPurifier_AttrDef
{
/**
* @type string
*/
protected $name;
/**
* @type bool
*/
public $minimized = true;
/**
* @param bool|string $name
*/
public function __construct($name = false)
{
$this->name = $name;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
return $this->name;
}
/**
* @param string $string Name of attribute
* @return HTMLPurifier_AttrDef_HTML_Bool
*/
public function make($string)
{
return new HTMLPurifier_AttrDef_HTML_Bool($string);
}
}
// vim: et sw=4 sts=4

View file

@ -1,48 +1,48 @@
<?php
/**
* Implements special behavior for class attribute (normally NMTOKENS)
*/
class HTMLPurifier_AttrDef_HTML_Class extends HTMLPurifier_AttrDef_HTML_Nmtokens
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
protected function split($string, $config, $context)
{
// really, this twiddle should be lazy loaded
$name = $config->getDefinition('HTML')->doctype->name;
if ($name == "XHTML 1.1" || $name == "XHTML 2.0") {
return parent::split($string, $config, $context);
} else {
return preg_split('/\s+/', $string);
}
}
/**
* @param array $tokens
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function filter($tokens, $config, $context)
{
$allowed = $config->get('Attr.AllowedClasses');
$forbidden = $config->get('Attr.ForbiddenClasses');
$ret = array();
foreach ($tokens as $token) {
if (($allowed === null || isset($allowed[$token])) &&
!isset($forbidden[$token]) &&
// We need this O(n) check because of PHP's array
// implementation that casts -0 to 0.
!in_array($token, $ret, true)
) {
$ret[] = $token;
}
}
return $ret;
}
}
<?php
/**
* Implements special behavior for class attribute (normally NMTOKENS)
*/
class HTMLPurifier_AttrDef_HTML_Class extends HTMLPurifier_AttrDef_HTML_Nmtokens
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
protected function split($string, $config, $context)
{
// really, this twiddle should be lazy loaded
$name = $config->getDefinition('HTML')->doctype->name;
if ($name == "XHTML 1.1" || $name == "XHTML 2.0") {
return parent::split($string, $config, $context);
} else {
return preg_split('/\s+/', $string);
}
}
/**
* @param array $tokens
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function filter($tokens, $config, $context)
{
$allowed = $config->get('Attr.AllowedClasses');
$forbidden = $config->get('Attr.ForbiddenClasses');
$ret = array();
foreach ($tokens as $token) {
if (($allowed === null || isset($allowed[$token])) &&
!isset($forbidden[$token]) &&
// We need this O(n) check because of PHP's array
// implementation that casts -0 to 0.
!in_array($token, $ret, true)
) {
$ret[] = $token;
}
}
return $ret;
}
}

View file

@ -1,51 +1,51 @@
<?php
/**
* Validates a color according to the HTML spec.
*/
class HTMLPurifier_AttrDef_HTML_Color extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $colors = null;
if ($colors === null) {
$colors = $config->get('Core.ColorKeywords');
}
$string = trim($string);
if (empty($string)) {
return false;
}
$lower = strtolower($string);
if (isset($colors[$lower])) {
return $colors[$lower];
}
if ($string[0] === '#') {
$hex = substr($string, 1);
} else {
$hex = $string;
}
$length = strlen($hex);
if ($length !== 3 && $length !== 6) {
return false;
}
if (!ctype_xdigit($hex)) {
return false;
}
if ($length === 3) {
$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
}
return "#$hex";
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a color according to the HTML spec.
*/
class HTMLPurifier_AttrDef_HTML_Color extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
static $colors = null;
if ($colors === null) {
$colors = $config->get('Core.ColorKeywords');
}
$string = trim($string);
if (empty($string)) {
return false;
}
$lower = strtolower($string);
if (isset($colors[$lower])) {
return $colors[$lower];
}
if ($string[0] === '#') {
$hex = substr($string, 1);
} else {
$hex = $string;
}
$length = strlen($hex);
if ($length !== 3 && $length !== 6) {
return false;
}
if (!ctype_xdigit($hex)) {
return false;
}
if ($length === 3) {
$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
}
return "#$hex";
}
}
// vim: et sw=4 sts=4

View file

@ -1,38 +1,38 @@
<?php
/**
* Special-case enum attribute definition that lazy loads allowed frame targets
*/
class HTMLPurifier_AttrDef_HTML_FrameTarget extends HTMLPurifier_AttrDef_Enum
{
/**
* @type array
*/
public $valid_values = false; // uninitialized value
/**
* @type bool
*/
protected $case_sensitive = false;
public function __construct()
{
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
if ($this->valid_values === false) {
$this->valid_values = $config->get('Attr.AllowedFrameTargets');
}
return parent::validate($string, $config, $context);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Special-case enum attribute definition that lazy loads allowed frame targets
*/
class HTMLPurifier_AttrDef_HTML_FrameTarget extends HTMLPurifier_AttrDef_Enum
{
/**
* @type array
*/
public $valid_values = false; // uninitialized value
/**
* @type bool
*/
protected $case_sensitive = false;
public function __construct()
{
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
if ($this->valid_values === false) {
$this->valid_values = $config->get('Attr.AllowedFrameTargets');
}
return parent::validate($string, $config, $context);
}
}
// vim: et sw=4 sts=4

View file

@ -1,113 +1,113 @@
<?php
/**
* Validates the HTML attribute ID.
* @warning Even though this is the id processor, it
* will ignore the directive Attr:IDBlacklist, since it will only
* go according to the ID accumulator. Since the accumulator is
* automatically generated, it will have already absorbed the
* blacklist. If you're hacking around, make sure you use load()!
*/
class HTMLPurifier_AttrDef_HTML_ID extends HTMLPurifier_AttrDef
{
// selector is NOT a valid thing to use for IDREFs, because IDREFs
// *must* target IDs that exist, whereas selector #ids do not.
/**
* Determines whether or not we're validating an ID in a CSS
* selector context.
* @type bool
*/
protected $selector;
/**
* @param bool $selector
*/
public function __construct($selector = false)
{
$this->selector = $selector;
}
/**
* @param string $id
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($id, $config, $context)
{
if (!$this->selector && !$config->get('Attr.EnableID')) {
return false;
}
$id = trim($id); // trim it first
if ($id === '') {
return false;
}
$prefix = $config->get('Attr.IDPrefix');
if ($prefix !== '') {
$prefix .= $config->get('Attr.IDPrefixLocal');
// prevent re-appending the prefix
if (strpos($id, $prefix) !== 0) {
$id = $prefix . $id;
}
} elseif ($config->get('Attr.IDPrefixLocal') !== '') {
trigger_error(
'%Attr.IDPrefixLocal cannot be used unless ' .
'%Attr.IDPrefix is set',
E_USER_WARNING
);
}
if (!$this->selector) {
$id_accumulator =& $context->get('IDAccumulator');
if (isset($id_accumulator->ids[$id])) {
return false;
}
}
// we purposely avoid using regex, hopefully this is faster
if ($config->get('Attr.ID.HTML5') === true) {
if (preg_match('/[\t\n\x0b\x0c ]/', $id)) {
return false;
}
} else {
if (ctype_alpha($id)) {
// OK
} else {
if (!ctype_alpha(@$id[0])) {
return false;
}
// primitive style of regexps, I suppose
$trim = trim(
$id,
'A..Za..z0..9:-._'
);
if ($trim !== '') {
return false;
}
}
}
$regexp = $config->get('Attr.IDBlacklistRegexp');
if ($regexp && preg_match($regexp, $id)) {
return false;
}
if (!$this->selector) {
$id_accumulator->add($id);
}
// if no change was made to the ID, return the result
// else, return the new id if stripping whitespace made it
// valid, or return false.
return $id;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the HTML attribute ID.
* @warning Even though this is the id processor, it
* will ignore the directive Attr:IDBlacklist, since it will only
* go according to the ID accumulator. Since the accumulator is
* automatically generated, it will have already absorbed the
* blacklist. If you're hacking around, make sure you use load()!
*/
class HTMLPurifier_AttrDef_HTML_ID extends HTMLPurifier_AttrDef
{
// selector is NOT a valid thing to use for IDREFs, because IDREFs
// *must* target IDs that exist, whereas selector #ids do not.
/**
* Determines whether or not we're validating an ID in a CSS
* selector context.
* @type bool
*/
protected $selector;
/**
* @param bool $selector
*/
public function __construct($selector = false)
{
$this->selector = $selector;
}
/**
* @param string $id
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($id, $config, $context)
{
if (!$this->selector && !$config->get('Attr.EnableID')) {
return false;
}
$id = trim($id); // trim it first
if ($id === '') {
return false;
}
$prefix = $config->get('Attr.IDPrefix');
if ($prefix !== '') {
$prefix .= $config->get('Attr.IDPrefixLocal');
// prevent re-appending the prefix
if (strpos($id, $prefix) !== 0) {
$id = $prefix . $id;
}
} elseif ($config->get('Attr.IDPrefixLocal') !== '') {
trigger_error(
'%Attr.IDPrefixLocal cannot be used unless ' .
'%Attr.IDPrefix is set',
E_USER_WARNING
);
}
if (!$this->selector) {
$id_accumulator =& $context->get('IDAccumulator');
if (isset($id_accumulator->ids[$id])) {
return false;
}
}
// we purposely avoid using regex, hopefully this is faster
if ($config->get('Attr.ID.HTML5') === true) {
if (preg_match('/[\t\n\x0b\x0c ]/', $id)) {
return false;
}
} else {
if (ctype_alpha($id)) {
// OK
} else {
if (!ctype_alpha(@$id[0])) {
return false;
}
// primitive style of regexps, I suppose
$trim = trim(
$id,
'A..Za..z0..9:-._'
);
if ($trim !== '') {
return false;
}
}
}
$regexp = $config->get('Attr.IDBlacklistRegexp');
if ($regexp && preg_match($regexp, $id)) {
return false;
}
if (!$this->selector) {
$id_accumulator->add($id);
}
// if no change was made to the ID, return the result
// else, return the new id if stripping whitespace made it
// valid, or return false.
return $id;
}
}
// vim: et sw=4 sts=4

View file

@ -1,56 +1,56 @@
<?php
/**
* Validates the HTML type length (not to be confused with CSS's length).
*
* This accepts integer pixels or percentages as lengths for certain
* HTML attributes.
*/
class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '') {
return false;
}
$parent_result = parent::validate($string, $config, $context);
if ($parent_result !== false) {
return $parent_result;
}
$length = strlen($string);
$last_char = $string[$length - 1];
if ($last_char !== '%') {
return false;
}
$points = substr($string, 0, $length - 1);
if (!is_numeric($points)) {
return false;
}
$points = (int)$points;
if ($points < 0) {
return '0%';
}
if ($points > 100) {
return '100%';
}
return ((string)$points) . '%';
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the HTML type length (not to be confused with CSS's length).
*
* This accepts integer pixels or percentages as lengths for certain
* HTML attributes.
*/
class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '') {
return false;
}
$parent_result = parent::validate($string, $config, $context);
if ($parent_result !== false) {
return $parent_result;
}
$length = strlen($string);
$last_char = $string[$length - 1];
if ($last_char !== '%') {
return false;
}
$points = substr($string, 0, $length - 1);
if (!is_numeric($points)) {
return false;
}
$points = (int)$points;
if ($points < 0) {
return '0%';
}
if ($points > 100) {
return '100%';
}
return ((string)$points) . '%';
}
}
// vim: et sw=4 sts=4

View file

@ -1,72 +1,72 @@
<?php
/**
* Validates a rel/rev link attribute against a directive of allowed values
* @note We cannot use Enum because link types allow multiple
* values.
* @note Assumes link types are ASCII text
*/
class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef
{
/**
* Name config attribute to pull.
* @type string
*/
protected $name;
/**
* @param string $name
*/
public function __construct($name)
{
$configLookup = array(
'rel' => 'AllowedRel',
'rev' => 'AllowedRev'
);
if (!isset($configLookup[$name])) {
trigger_error(
'Unrecognized attribute name for link ' .
'relationship.',
E_USER_ERROR
);
return;
}
$this->name = $configLookup[$name];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$allowed = $config->get('Attr.' . $this->name);
if (empty($allowed)) {
return false;
}
$string = $this->parseCDATA($string);
$parts = explode(' ', $string);
// lookup to prevent duplicates
$ret_lookup = array();
foreach ($parts as $part) {
$part = strtolower(trim($part));
if (!isset($allowed[$part])) {
continue;
}
$ret_lookup[$part] = true;
}
if (empty($ret_lookup)) {
return false;
}
$string = implode(' ', array_keys($ret_lookup));
return $string;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a rel/rev link attribute against a directive of allowed values
* @note We cannot use Enum because link types allow multiple
* values.
* @note Assumes link types are ASCII text
*/
class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef
{
/**
* Name config attribute to pull.
* @type string
*/
protected $name;
/**
* @param string $name
*/
public function __construct($name)
{
$configLookup = array(
'rel' => 'AllowedRel',
'rev' => 'AllowedRev'
);
if (!isset($configLookup[$name])) {
trigger_error(
'Unrecognized attribute name for link ' .
'relationship.',
E_USER_ERROR
);
return;
}
$this->name = $configLookup[$name];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$allowed = $config->get('Attr.' . $this->name);
if (empty($allowed)) {
return false;
}
$string = $this->parseCDATA($string);
$parts = explode(' ', $string);
// lookup to prevent duplicates
$ret_lookup = array();
foreach ($parts as $part) {
$part = strtolower(trim($part));
if (!isset($allowed[$part])) {
continue;
}
$ret_lookup[$part] = true;
}
if (empty($ret_lookup)) {
return false;
}
$string = implode(' ', array_keys($ret_lookup));
return $string;
}
}
// vim: et sw=4 sts=4

View file

@ -1,60 +1,60 @@
<?php
/**
* Validates a MultiLength as defined by the HTML spec.
*
* A multilength is either a integer (pixel count), a percentage, or
* a relative number.
*/
class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '') {
return false;
}
$parent_result = parent::validate($string, $config, $context);
if ($parent_result !== false) {
return $parent_result;
}
$length = strlen($string);
$last_char = $string[$length - 1];
if ($last_char !== '*') {
return false;
}
$int = substr($string, 0, $length - 1);
if ($int == '') {
return '*';
}
if (!is_numeric($int)) {
return false;
}
$int = (int)$int;
if ($int < 0) {
return false;
}
if ($int == 0) {
return '0';
}
if ($int == 1) {
return '*';
}
return ((string)$int) . '*';
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a MultiLength as defined by the HTML spec.
*
* A multilength is either a integer (pixel count), a percentage, or
* a relative number.
*/
class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '') {
return false;
}
$parent_result = parent::validate($string, $config, $context);
if ($parent_result !== false) {
return $parent_result;
}
$length = strlen($string);
$last_char = $string[$length - 1];
if ($last_char !== '*') {
return false;
}
$int = substr($string, 0, $length - 1);
if ($int == '') {
return '*';
}
if (!is_numeric($int)) {
return false;
}
$int = (int)$int;
if ($int < 0) {
return false;
}
if ($int == 0) {
return '0';
}
if ($int == 1) {
return '*';
}
return ((string)$int) . '*';
}
}
// vim: et sw=4 sts=4

View file

@ -1,70 +1,70 @@
<?php
/**
* Validates contents based on NMTOKENS attribute type.
*/
class HTMLPurifier_AttrDef_HTML_Nmtokens extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
// early abort: '' and '0' (strings that convert to false) are invalid
if (!$string) {
return false;
}
$tokens = $this->split($string, $config, $context);
$tokens = $this->filter($tokens, $config, $context);
if (empty($tokens)) {
return false;
}
return implode(' ', $tokens);
}
/**
* Splits a space separated list of tokens into its constituent parts.
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function split($string, $config, $context)
{
// OPTIMIZABLE!
// do the preg_match, capture all subpatterns for reformulation
// we don't support U+00A1 and up codepoints or
// escaping because I don't know how to do that with regexps
// and plus it would complicate optimization efforts (you never
// see that anyway).
$pattern = '/(?:(?<=\s)|\A)' . // look behind for space or string start
'((?:--|-?[A-Za-z_])[A-Za-z_\-0-9]*)' .
'(?:(?=\s)|\z)/'; // look ahead for space or string end
preg_match_all($pattern, $string, $matches);
return $matches[1];
}
/**
* Template method for removing certain tokens based on arbitrary criteria.
* @note If we wanted to be really functional, we'd do an array_filter
* with a callback. But... we're not.
* @param array $tokens
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function filter($tokens, $config, $context)
{
return $tokens;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates contents based on NMTOKENS attribute type.
*/
class HTMLPurifier_AttrDef_HTML_Nmtokens extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
// early abort: '' and '0' (strings that convert to false) are invalid
if (!$string) {
return false;
}
$tokens = $this->split($string, $config, $context);
$tokens = $this->filter($tokens, $config, $context);
if (empty($tokens)) {
return false;
}
return implode(' ', $tokens);
}
/**
* Splits a space separated list of tokens into its constituent parts.
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function split($string, $config, $context)
{
// OPTIMIZABLE!
// do the preg_match, capture all subpatterns for reformulation
// we don't support U+00A1 and up codepoints or
// escaping because I don't know how to do that with regexps
// and plus it would complicate optimization efforts (you never
// see that anyway).
$pattern = '/(?:(?<=\s)|\A)' . // look behind for space or string start
'((?:--|-?[A-Za-z_])[A-Za-z_\-0-9]*)' .
'(?:(?=\s)|\z)/'; // look ahead for space or string end
preg_match_all($pattern, $string, $matches);
return $matches[1];
}
/**
* Template method for removing certain tokens based on arbitrary criteria.
* @note If we wanted to be really functional, we'd do an array_filter
* with a callback. But... we're not.
* @param array $tokens
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
protected function filter($tokens, $config, $context)
{
return $tokens;
}
}
// vim: et sw=4 sts=4

View file

@ -1,76 +1,76 @@
<?php
/**
* Validates an integer representation of pixels according to the HTML spec.
*/
class HTMLPurifier_AttrDef_HTML_Pixels extends HTMLPurifier_AttrDef
{
/**
* @type int
*/
protected $max;
/**
* @param int $max
*/
public function __construct($max = null)
{
$this->max = $max;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '0') {
return $string;
}
if ($string === '') {
return false;
}
$length = strlen($string);
if (substr($string, $length - 2) == 'px') {
$string = substr($string, 0, $length - 2);
}
if (!is_numeric($string)) {
return false;
}
$int = (int)$string;
if ($int < 0) {
return '0';
}
// upper-bound value, extremely high values can
// crash operating systems, see <http://ha.ckers.org/imagecrash.html>
// WARNING, above link WILL crash you if you're using Windows
if ($this->max !== null && $int > $this->max) {
return (string)$this->max;
}
return (string)$int;
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef
*/
public function make($string)
{
if ($string === '') {
$max = null;
} else {
$max = (int)$string;
}
$class = get_class($this);
return new $class($max);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates an integer representation of pixels according to the HTML spec.
*/
class HTMLPurifier_AttrDef_HTML_Pixels extends HTMLPurifier_AttrDef
{
/**
* @type int
*/
protected $max;
/**
* @param int $max
*/
public function __construct($max = null)
{
$this->max = $max;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if ($string === '0') {
return $string;
}
if ($string === '') {
return false;
}
$length = strlen($string);
if (substr($string, $length - 2) == 'px') {
$string = substr($string, 0, $length - 2);
}
if (!is_numeric($string)) {
return false;
}
$int = (int)$string;
if ($int < 0) {
return '0';
}
// upper-bound value, extremely high values can
// crash operating systems, see <http://ha.ckers.org/imagecrash.html>
// WARNING, above link WILL crash you if you're using Windows
if ($this->max !== null && $int > $this->max) {
return (string)$this->max;
}
return (string)$int;
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef
*/
public function make($string)
{
if ($string === '') {
$max = null;
} else {
$max = (int)$string;
}
$class = get_class($this);
return new $class($max);
}
}
// vim: et sw=4 sts=4

View file

@ -1,91 +1,91 @@
<?php
/**
* Validates an integer.
* @note While this class was modeled off the CSS definition, no currently
* allowed CSS uses this type. The properties that do are: widows,
* orphans, z-index, counter-increment, counter-reset. Some of the
* HTML attributes, however, find use for a non-negative version of this.
*/
class HTMLPurifier_AttrDef_Integer extends HTMLPurifier_AttrDef
{
/**
* Whether or not negative values are allowed.
* @type bool
*/
protected $negative = true;
/**
* Whether or not zero is allowed.
* @type bool
*/
protected $zero = true;
/**
* Whether or not positive values are allowed.
* @type bool
*/
protected $positive = true;
/**
* @param $negative Bool indicating whether or not negative values are allowed
* @param $zero Bool indicating whether or not zero is allowed
* @param $positive Bool indicating whether or not positive values are allowed
*/
public function __construct($negative = true, $zero = true, $positive = true)
{
$this->negative = $negative;
$this->zero = $zero;
$this->positive = $positive;
}
/**
* @param string $integer
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($integer, $config, $context)
{
$integer = $this->parseCDATA($integer);
if ($integer === '') {
return false;
}
// we could possibly simply typecast it to integer, but there are
// certain fringe cases that must not return an integer.
// clip leading sign
if ($this->negative && $integer[0] === '-') {
$digits = substr($integer, 1);
if ($digits === '0') {
$integer = '0';
} // rm minus sign for zero
} elseif ($this->positive && $integer[0] === '+') {
$digits = $integer = substr($integer, 1); // rm unnecessary plus
} else {
$digits = $integer;
}
// test if it's numeric
if (!ctype_digit($digits)) {
return false;
}
// perform scope tests
if (!$this->zero && $integer == 0) {
return false;
}
if (!$this->positive && $integer > 0) {
return false;
}
if (!$this->negative && $integer < 0) {
return false;
}
return $integer;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates an integer.
* @note While this class was modeled off the CSS definition, no currently
* allowed CSS uses this type. The properties that do are: widows,
* orphans, z-index, counter-increment, counter-reset. Some of the
* HTML attributes, however, find use for a non-negative version of this.
*/
class HTMLPurifier_AttrDef_Integer extends HTMLPurifier_AttrDef
{
/**
* Whether or not negative values are allowed.
* @type bool
*/
protected $negative = true;
/**
* Whether or not zero is allowed.
* @type bool
*/
protected $zero = true;
/**
* Whether or not positive values are allowed.
* @type bool
*/
protected $positive = true;
/**
* @param $negative Bool indicating whether or not negative values are allowed
* @param $zero Bool indicating whether or not zero is allowed
* @param $positive Bool indicating whether or not positive values are allowed
*/
public function __construct($negative = true, $zero = true, $positive = true)
{
$this->negative = $negative;
$this->zero = $zero;
$this->positive = $positive;
}
/**
* @param string $integer
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($integer, $config, $context)
{
$integer = $this->parseCDATA($integer);
if ($integer === '') {
return false;
}
// we could possibly simply typecast it to integer, but there are
// certain fringe cases that must not return an integer.
// clip leading sign
if ($this->negative && $integer[0] === '-') {
$digits = substr($integer, 1);
if ($digits === '0') {
$integer = '0';
} // rm minus sign for zero
} elseif ($this->positive && $integer[0] === '+') {
$digits = $integer = substr($integer, 1); // rm unnecessary plus
} else {
$digits = $integer;
}
// test if it's numeric
if (!ctype_digit($digits)) {
return false;
}
// perform scope tests
if (!$this->zero && $integer == 0) {
return false;
}
if (!$this->positive && $integer > 0) {
return false;
}
if (!$this->negative && $integer < 0) {
return false;
}
return $integer;
}
}
// vim: et sw=4 sts=4

View file

@ -1,86 +1,86 @@
<?php
/**
* Validates the HTML attribute lang, effectively a language code.
* @note Built according to RFC 3066, which obsoleted RFC 1766
*/
class HTMLPurifier_AttrDef_Lang extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if (!$string) {
return false;
}
$subtags = explode('-', $string);
$num_subtags = count($subtags);
if ($num_subtags == 0) { // sanity check
return false;
}
// process primary subtag : $subtags[0]
$length = strlen($subtags[0]);
switch ($length) {
case 0:
return false;
case 1:
if (!($subtags[0] == 'x' || $subtags[0] == 'i')) {
return false;
}
break;
case 2:
case 3:
if (!ctype_alpha($subtags[0])) {
return false;
} elseif (!ctype_lower($subtags[0])) {
$subtags[0] = strtolower($subtags[0]);
}
break;
default:
return false;
}
$new_string = $subtags[0];
if ($num_subtags == 1) {
return $new_string;
}
// process second subtag : $subtags[1]
$length = strlen($subtags[1]);
if ($length == 0 || ($length == 1 && $subtags[1] != 'x') || $length > 8 || !ctype_alnum($subtags[1])) {
return $new_string;
}
if (!ctype_lower($subtags[1])) {
$subtags[1] = strtolower($subtags[1]);
}
$new_string .= '-' . $subtags[1];
if ($num_subtags == 2) {
return $new_string;
}
// process all other subtags, index 2 and up
for ($i = 2; $i < $num_subtags; $i++) {
$length = strlen($subtags[$i]);
if ($length == 0 || $length > 8 || !ctype_alnum($subtags[$i])) {
return $new_string;
}
if (!ctype_lower($subtags[$i])) {
$subtags[$i] = strtolower($subtags[$i]);
}
$new_string .= '-' . $subtags[$i];
}
return $new_string;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the HTML attribute lang, effectively a language code.
* @note Built according to RFC 3066, which obsoleted RFC 1766
*/
class HTMLPurifier_AttrDef_Lang extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = trim($string);
if (!$string) {
return false;
}
$subtags = explode('-', $string);
$num_subtags = count($subtags);
if ($num_subtags == 0) { // sanity check
return false;
}
// process primary subtag : $subtags[0]
$length = strlen($subtags[0]);
switch ($length) {
case 0:
return false;
case 1:
if (!($subtags[0] == 'x' || $subtags[0] == 'i')) {
return false;
}
break;
case 2:
case 3:
if (!ctype_alpha($subtags[0])) {
return false;
} elseif (!ctype_lower($subtags[0])) {
$subtags[0] = strtolower($subtags[0]);
}
break;
default:
return false;
}
$new_string = $subtags[0];
if ($num_subtags == 1) {
return $new_string;
}
// process second subtag : $subtags[1]
$length = strlen($subtags[1]);
if ($length == 0 || ($length == 1 && $subtags[1] != 'x') || $length > 8 || !ctype_alnum($subtags[1])) {
return $new_string;
}
if (!ctype_lower($subtags[1])) {
$subtags[1] = strtolower($subtags[1]);
}
$new_string .= '-' . $subtags[1];
if ($num_subtags == 2) {
return $new_string;
}
// process all other subtags, index 2 and up
for ($i = 2; $i < $num_subtags; $i++) {
$length = strlen($subtags[$i]);
if ($length == 0 || $length > 8 || !ctype_alnum($subtags[$i])) {
return $new_string;
}
if (!ctype_lower($subtags[$i])) {
$subtags[$i] = strtolower($subtags[$i]);
}
$new_string .= '-' . $subtags[$i];
}
return $new_string;
}
}
// vim: et sw=4 sts=4

View file

@ -1,53 +1,53 @@
<?php
/**
* Decorator that, depending on a token, switches between two definitions.
*/
class HTMLPurifier_AttrDef_Switch
{
/**
* @type string
*/
protected $tag;
/**
* @type HTMLPurifier_AttrDef
*/
protected $withTag;
/**
* @type HTMLPurifier_AttrDef
*/
protected $withoutTag;
/**
* @param string $tag Tag name to switch upon
* @param HTMLPurifier_AttrDef $with_tag Call if token matches tag
* @param HTMLPurifier_AttrDef $without_tag Call if token doesn't match, or there is no token
*/
public function __construct($tag, $with_tag, $without_tag)
{
$this->tag = $tag;
$this->withTag = $with_tag;
$this->withoutTag = $without_tag;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$token = $context->get('CurrentToken', true);
if (!$token || $token->name !== $this->tag) {
return $this->withoutTag->validate($string, $config, $context);
} else {
return $this->withTag->validate($string, $config, $context);
}
}
}
// vim: et sw=4 sts=4
<?php
/**
* Decorator that, depending on a token, switches between two definitions.
*/
class HTMLPurifier_AttrDef_Switch
{
/**
* @type string
*/
protected $tag;
/**
* @type HTMLPurifier_AttrDef
*/
protected $withTag;
/**
* @type HTMLPurifier_AttrDef
*/
protected $withoutTag;
/**
* @param string $tag Tag name to switch upon
* @param HTMLPurifier_AttrDef $with_tag Call if token matches tag
* @param HTMLPurifier_AttrDef $without_tag Call if token doesn't match, or there is no token
*/
public function __construct($tag, $with_tag, $without_tag)
{
$this->tag = $tag;
$this->withTag = $with_tag;
$this->withoutTag = $without_tag;
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$token = $context->get('CurrentToken', true);
if (!$token || $token->name !== $this->tag) {
return $this->withoutTag->validate($string, $config, $context);
} else {
return $this->withTag->validate($string, $config, $context);
}
}
}
// vim: et sw=4 sts=4

View file

@ -1,21 +1,21 @@
<?php
/**
* Validates arbitrary text according to the HTML spec.
*/
class HTMLPurifier_AttrDef_Text extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
return $this->parseCDATA($string);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates arbitrary text according to the HTML spec.
*/
class HTMLPurifier_AttrDef_Text extends HTMLPurifier_AttrDef
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
return $this->parseCDATA($string);
}
}
// vim: et sw=4 sts=4

View file

@ -1,111 +1,111 @@
<?php
/**
* Validates a URI as defined by RFC 3986.
* @note Scheme-specific mechanics deferred to HTMLPurifier_URIScheme
*/
class HTMLPurifier_AttrDef_URI extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_URIParser
*/
protected $parser;
/**
* @type bool
*/
protected $embedsResource;
/**
* @param bool $embeds_resource Does the URI here result in an extra HTTP request?
*/
public function __construct($embeds_resource = false)
{
$this->parser = new HTMLPurifier_URIParser();
$this->embedsResource = (bool)$embeds_resource;
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef_URI
*/
public function make($string)
{
$embeds = ($string === 'embedded');
return new HTMLPurifier_AttrDef_URI($embeds);
}
/**
* @param string $uri
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($uri, $config, $context)
{
if ($config->get('URI.Disable')) {
return false;
}
$uri = $this->parseCDATA($uri);
// parse the URI
$uri = $this->parser->parse($uri);
if ($uri === false) {
return false;
}
// add embedded flag to context for validators
$context->register('EmbeddedURI', $this->embedsResource);
$ok = false;
do {
// generic validation
$result = $uri->validate($config, $context);
if (!$result) {
break;
}
// chained filtering
$uri_def = $config->getDefinition('URI');
$result = $uri_def->filter($uri, $config, $context);
if (!$result) {
break;
}
// scheme-specific validation
$scheme_obj = $uri->getSchemeObj($config, $context);
if (!$scheme_obj) {
break;
}
if ($this->embedsResource && !$scheme_obj->browsable) {
break;
}
$result = $scheme_obj->validate($uri, $config, $context);
if (!$result) {
break;
}
// Post chained filtering
$result = $uri_def->postFilter($uri, $config, $context);
if (!$result) {
break;
}
// survived gauntlet
$ok = true;
} while (false);
$context->destroy('EmbeddedURI');
if (!$ok) {
return false;
}
// back to string
return $uri->toString();
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a URI as defined by RFC 3986.
* @note Scheme-specific mechanics deferred to HTMLPurifier_URIScheme
*/
class HTMLPurifier_AttrDef_URI extends HTMLPurifier_AttrDef
{
/**
* @type HTMLPurifier_URIParser
*/
protected $parser;
/**
* @type bool
*/
protected $embedsResource;
/**
* @param bool $embeds_resource Does the URI here result in an extra HTTP request?
*/
public function __construct($embeds_resource = false)
{
$this->parser = new HTMLPurifier_URIParser();
$this->embedsResource = (bool)$embeds_resource;
}
/**
* @param string $string
* @return HTMLPurifier_AttrDef_URI
*/
public function make($string)
{
$embeds = ($string === 'embedded');
return new HTMLPurifier_AttrDef_URI($embeds);
}
/**
* @param string $uri
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($uri, $config, $context)
{
if ($config->get('URI.Disable')) {
return false;
}
$uri = $this->parseCDATA($uri);
// parse the URI
$uri = $this->parser->parse($uri);
if ($uri === false) {
return false;
}
// add embedded flag to context for validators
$context->register('EmbeddedURI', $this->embedsResource);
$ok = false;
do {
// generic validation
$result = $uri->validate($config, $context);
if (!$result) {
break;
}
// chained filtering
$uri_def = $config->getDefinition('URI');
$result = $uri_def->filter($uri, $config, $context);
if (!$result) {
break;
}
// scheme-specific validation
$scheme_obj = $uri->getSchemeObj($config, $context);
if (!$scheme_obj) {
break;
}
if ($this->embedsResource && !$scheme_obj->browsable) {
break;
}
$result = $scheme_obj->validate($uri, $config, $context);
if (!$result) {
break;
}
// Post chained filtering
$result = $uri_def->postFilter($uri, $config, $context);
if (!$result) {
break;
}
// survived gauntlet
$ok = true;
} while (false);
$context->destroy('EmbeddedURI');
if (!$ok) {
return false;
}
// back to string
return $uri->toString();
}
}
// vim: et sw=4 sts=4

View file

@ -1,20 +1,20 @@
<?php
abstract class HTMLPurifier_AttrDef_URI_Email extends HTMLPurifier_AttrDef
{
/**
* Unpacks a mailbox into its display-name and address
* @param string $string
* @return mixed
*/
public function unpack($string)
{
// needs to be implemented
}
}
// sub-implementations
// vim: et sw=4 sts=4
<?php
abstract class HTMLPurifier_AttrDef_URI_Email extends HTMLPurifier_AttrDef
{
/**
* Unpacks a mailbox into its display-name and address
* @param string $string
* @return mixed
*/
public function unpack($string)
{
// needs to be implemented
}
}
// sub-implementations
// vim: et sw=4 sts=4

View file

@ -1,29 +1,29 @@
<?php
/**
* Primitive email validation class based on the regexp found at
* http://www.regular-expressions.info/email.html
*/
class HTMLPurifier_AttrDef_URI_Email_SimpleCheck extends HTMLPurifier_AttrDef_URI_Email
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// no support for named mailboxes i.e. "Bob <bob@example.com>"
// that needs more percent encoding to be done
if ($string == '') {
return false;
}
$string = trim($string);
$result = preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $string);
return $result ? $string : false;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Primitive email validation class based on the regexp found at
* http://www.regular-expressions.info/email.html
*/
class HTMLPurifier_AttrDef_URI_Email_SimpleCheck extends HTMLPurifier_AttrDef_URI_Email
{
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
// no support for named mailboxes i.e. "Bob <bob@example.com>"
// that needs more percent encoding to be done
if ($string == '') {
return false;
}
$string = trim($string);
$result = preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $string);
return $result ? $string : false;
}
}
// vim: et sw=4 sts=4

View file

@ -1,142 +1,142 @@
<?php
/**
* Validates a host according to the IPv4, IPv6 and DNS (future) specifications.
*/
class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
{
/**
* IPv4 sub-validator.
* @type HTMLPurifier_AttrDef_URI_IPv4
*/
protected $ipv4;
/**
* IPv6 sub-validator.
* @type HTMLPurifier_AttrDef_URI_IPv6
*/
protected $ipv6;
public function __construct()
{
$this->ipv4 = new HTMLPurifier_AttrDef_URI_IPv4();
$this->ipv6 = new HTMLPurifier_AttrDef_URI_IPv6();
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$length = strlen($string);
// empty hostname is OK; it's usually semantically equivalent:
// the default host as defined by a URI scheme is used:
//
// If the URI scheme defines a default for host, then that
// default applies when the host subcomponent is undefined
// or when the registered name is empty (zero length).
if ($string === '') {
return '';
}
if ($length > 1 && $string[0] === '[' && $string[$length - 1] === ']') {
//IPv6
$ip = substr($string, 1, $length - 2);
$valid = $this->ipv6->validate($ip, $config, $context);
if ($valid === false) {
return false;
}
return '[' . $valid . ']';
}
// need to do checks on unusual encodings too
$ipv4 = $this->ipv4->validate($string, $config, $context);
if ($ipv4 !== false) {
return $ipv4;
}
// A regular domain name.
// This doesn't match I18N domain names, but we don't have proper IRI support,
// so force users to insert Punycode.
// There is not a good sense in which underscores should be
// allowed, since it's technically not! (And if you go as
// far to allow everything as specified by the DNS spec...
// well, that's literally everything, modulo some space limits
// for the components and the overall name (which, by the way,
// we are NOT checking!). So we (arbitrarily) decide this:
// let's allow underscores wherever we would have allowed
// hyphens, if they are enabled. This is a pretty good match
// for browser behavior, for example, a large number of browsers
// cannot handle foo_.example.com, but foo_bar.example.com is
// fairly well supported.
$underscore = $config->get('Core.AllowHostnameUnderscore') ? '_' : '';
// Based off of RFC 1738, but amended so that
// as per RFC 3696, the top label need only not be all numeric.
// The productions describing this are:
$a = '[a-z]'; // alpha
$an = '[a-z0-9]'; // alphanum
$and = "[a-z0-9-$underscore]"; // alphanum | "-"
// domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum
$domainlabel = "$an(?:$and*$an)?";
// AMENDED as per RFC 3696
// toplabel = alphanum | alphanum *( alphanum | "-" ) alphanum
// side condition: not all numeric
$toplabel = "$an(?:$and*$an)?";
// hostname = *( domainlabel "." ) toplabel [ "." ]
if (preg_match("/^(?:$domainlabel\.)*($toplabel)\.?$/i", $string, $matches)) {
if (!ctype_digit($matches[1])) {
return $string;
}
}
// PHP 5.3 and later support this functionality natively
if (function_exists('idn_to_ascii')) {
if (defined('IDNA_NONTRANSITIONAL_TO_ASCII') && defined('INTL_IDNA_VARIANT_UTS46')) {
$string = idn_to_ascii($string, IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
} else {
$string = idn_to_ascii($string);
}
// If we have Net_IDNA2 support, we can support IRIs by
// punycoding them. (This is the most portable thing to do,
// since otherwise we have to assume browsers support
} elseif ($config->get('Core.EnableIDNA')) {
$idna = new Net_IDNA2(array('encoding' => 'utf8', 'overlong' => false, 'strict' => true));
// we need to encode each period separately
$parts = explode('.', $string);
try {
$new_parts = array();
foreach ($parts as $part) {
$encodable = false;
for ($i = 0, $c = strlen($part); $i < $c; $i++) {
if (ord($part[$i]) > 0x7a) {
$encodable = true;
break;
}
}
if (!$encodable) {
$new_parts[] = $part;
} else {
$new_parts[] = $idna->encode($part);
}
}
$string = implode('.', $new_parts);
} catch (Exception $e) {
// XXX error reporting
}
}
// Try again
if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) {
return $string;
}
return false;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates a host according to the IPv4, IPv6 and DNS (future) specifications.
*/
class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
{
/**
* IPv4 sub-validator.
* @type HTMLPurifier_AttrDef_URI_IPv4
*/
protected $ipv4;
/**
* IPv6 sub-validator.
* @type HTMLPurifier_AttrDef_URI_IPv6
*/
protected $ipv6;
public function __construct()
{
$this->ipv4 = new HTMLPurifier_AttrDef_URI_IPv4();
$this->ipv6 = new HTMLPurifier_AttrDef_URI_IPv6();
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$length = strlen($string);
// empty hostname is OK; it's usually semantically equivalent:
// the default host as defined by a URI scheme is used:
//
// If the URI scheme defines a default for host, then that
// default applies when the host subcomponent is undefined
// or when the registered name is empty (zero length).
if ($string === '') {
return '';
}
if ($length > 1 && $string[0] === '[' && $string[$length - 1] === ']') {
//IPv6
$ip = substr($string, 1, $length - 2);
$valid = $this->ipv6->validate($ip, $config, $context);
if ($valid === false) {
return false;
}
return '[' . $valid . ']';
}
// need to do checks on unusual encodings too
$ipv4 = $this->ipv4->validate($string, $config, $context);
if ($ipv4 !== false) {
return $ipv4;
}
// A regular domain name.
// This doesn't match I18N domain names, but we don't have proper IRI support,
// so force users to insert Punycode.
// There is not a good sense in which underscores should be
// allowed, since it's technically not! (And if you go as
// far to allow everything as specified by the DNS spec...
// well, that's literally everything, modulo some space limits
// for the components and the overall name (which, by the way,
// we are NOT checking!). So we (arbitrarily) decide this:
// let's allow underscores wherever we would have allowed
// hyphens, if they are enabled. This is a pretty good match
// for browser behavior, for example, a large number of browsers
// cannot handle foo_.example.com, but foo_bar.example.com is
// fairly well supported.
$underscore = $config->get('Core.AllowHostnameUnderscore') ? '_' : '';
// Based off of RFC 1738, but amended so that
// as per RFC 3696, the top label need only not be all numeric.
// The productions describing this are:
$a = '[a-z]'; // alpha
$an = '[a-z0-9]'; // alphanum
$and = "[a-z0-9-$underscore]"; // alphanum | "-"
// domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum
$domainlabel = "$an(?:$and*$an)?";
// AMENDED as per RFC 3696
// toplabel = alphanum | alphanum *( alphanum | "-" ) alphanum
// side condition: not all numeric
$toplabel = "$an(?:$and*$an)?";
// hostname = *( domainlabel "." ) toplabel [ "." ]
if (preg_match("/^(?:$domainlabel\.)*($toplabel)\.?$/i", $string, $matches)) {
if (!ctype_digit($matches[1])) {
return $string;
}
}
// PHP 5.3 and later support this functionality natively
if (function_exists('idn_to_ascii')) {
if (defined('IDNA_NONTRANSITIONAL_TO_ASCII') && defined('INTL_IDNA_VARIANT_UTS46')) {
$string = idn_to_ascii($string, IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
} else {
$string = idn_to_ascii($string);
}
// If we have Net_IDNA2 support, we can support IRIs by
// punycoding them. (This is the most portable thing to do,
// since otherwise we have to assume browsers support
} elseif ($config->get('Core.EnableIDNA')) {
$idna = new Net_IDNA2(array('encoding' => 'utf8', 'overlong' => false, 'strict' => true));
// we need to encode each period separately
$parts = explode('.', $string);
try {
$new_parts = array();
foreach ($parts as $part) {
$encodable = false;
for ($i = 0, $c = strlen($part); $i < $c; $i++) {
if (ord($part[$i]) > 0x7a) {
$encodable = true;
break;
}
}
if (!$encodable) {
$new_parts[] = $part;
} else {
$new_parts[] = $idna->encode($part);
}
}
$string = implode('.', $new_parts);
} catch (Exception $e) {
// XXX error reporting
}
}
// Try again
if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) {
return $string;
}
return false;
}
}
// vim: et sw=4 sts=4

View file

@ -1,45 +1,45 @@
<?php
/**
* Validates an IPv4 address
* @author Feyd @ forums.devnetwork.net (public domain)
*/
class HTMLPurifier_AttrDef_URI_IPv4 extends HTMLPurifier_AttrDef
{
/**
* IPv4 regex, protected so that IPv6 can reuse it.
* @type string
*/
protected $ip4;
/**
* @param string $aIP
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($aIP, $config, $context)
{
if (!$this->ip4) {
$this->_loadRegex();
}
if (preg_match('#^' . $this->ip4 . '$#s', $aIP)) {
return $aIP;
}
return false;
}
/**
* Lazy load function to prevent regex from being stuffed in
* cache.
*/
protected function _loadRegex()
{
$oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255
$this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})";
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates an IPv4 address
* @author Feyd @ forums.devnetwork.net (public domain)
*/
class HTMLPurifier_AttrDef_URI_IPv4 extends HTMLPurifier_AttrDef
{
/**
* IPv4 regex, protected so that IPv6 can reuse it.
* @type string
*/
protected $ip4;
/**
* @param string $aIP
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($aIP, $config, $context)
{
if (!$this->ip4) {
$this->_loadRegex();
}
if (preg_match('#^' . $this->ip4 . '$#s', $aIP)) {
return $aIP;
}
return false;
}
/**
* Lazy load function to prevent regex from being stuffed in
* cache.
*/
protected function _loadRegex()
{
$oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255
$this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})";
}
}
// vim: et sw=4 sts=4

View file

@ -1,89 +1,89 @@
<?php
/**
* Validates an IPv6 address.
* @author Feyd @ forums.devnetwork.net (public domain)
* @note This function requires brackets to have been removed from address
* in URI.
*/
class HTMLPurifier_AttrDef_URI_IPv6 extends HTMLPurifier_AttrDef_URI_IPv4
{
/**
* @param string $aIP
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($aIP, $config, $context)
{
if (!$this->ip4) {
$this->_loadRegex();
}
$original = $aIP;
$hex = '[0-9a-fA-F]';
$blk = '(?:' . $hex . '{1,4})';
$pre = '(?:/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))'; // /0 - /128
// prefix check
if (strpos($aIP, '/') !== false) {
if (preg_match('#' . $pre . '$#s', $aIP, $find)) {
$aIP = substr($aIP, 0, 0 - strlen($find[0]));
unset($find);
} else {
return false;
}
}
// IPv4-compatiblity check
if (preg_match('#(?<=:' . ')' . $this->ip4 . '$#s', $aIP, $find)) {
$aIP = substr($aIP, 0, 0 - strlen($find[0]));
$ip = explode('.', $find[0]);
$ip = array_map('dechex', $ip);
$aIP .= $ip[0] . $ip[1] . ':' . $ip[2] . $ip[3];
unset($find, $ip);
}
// compression check
$aIP = explode('::', $aIP);
$c = count($aIP);
if ($c > 2) {
return false;
} elseif ($c == 2) {
list($first, $second) = $aIP;
$first = explode(':', $first);
$second = explode(':', $second);
if (count($first) + count($second) > 8) {
return false;
}
while (count($first) < 8) {
array_push($first, '0');
}
array_splice($first, 8 - count($second), 8, $second);
$aIP = $first;
unset($first, $second);
} else {
$aIP = explode(':', $aIP[0]);
}
$c = count($aIP);
if ($c != 8) {
return false;
}
// All the pieces should be 16-bit hex strings. Are they?
foreach ($aIP as $piece) {
if (!preg_match('#^[0-9a-fA-F]{4}$#s', sprintf('%04s', $piece))) {
return false;
}
}
return $original;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates an IPv6 address.
* @author Feyd @ forums.devnetwork.net (public domain)
* @note This function requires brackets to have been removed from address
* in URI.
*/
class HTMLPurifier_AttrDef_URI_IPv6 extends HTMLPurifier_AttrDef_URI_IPv4
{
/**
* @param string $aIP
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($aIP, $config, $context)
{
if (!$this->ip4) {
$this->_loadRegex();
}
$original = $aIP;
$hex = '[0-9a-fA-F]';
$blk = '(?:' . $hex . '{1,4})';
$pre = '(?:/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))'; // /0 - /128
// prefix check
if (strpos($aIP, '/') !== false) {
if (preg_match('#' . $pre . '$#s', $aIP, $find)) {
$aIP = substr($aIP, 0, 0 - strlen($find[0]));
unset($find);
} else {
return false;
}
}
// IPv4-compatiblity check
if (preg_match('#(?<=:' . ')' . $this->ip4 . '$#s', $aIP, $find)) {
$aIP = substr($aIP, 0, 0 - strlen($find[0]));
$ip = explode('.', $find[0]);
$ip = array_map('dechex', $ip);
$aIP .= $ip[0] . $ip[1] . ':' . $ip[2] . $ip[3];
unset($find, $ip);
}
// compression check
$aIP = explode('::', $aIP);
$c = count($aIP);
if ($c > 2) {
return false;
} elseif ($c == 2) {
list($first, $second) = $aIP;
$first = explode(':', $first);
$second = explode(':', $second);
if (count($first) + count($second) > 8) {
return false;
}
while (count($first) < 8) {
array_push($first, '0');
}
array_splice($first, 8 - count($second), 8, $second);
$aIP = $first;
unset($first, $second);
} else {
$aIP = explode(':', $aIP[0]);
}
$c = count($aIP);
if ($c != 8) {
return false;
}
// All the pieces should be 16-bit hex strings. Are they?
foreach ($aIP as $piece) {
if (!preg_match('#^[0-9a-fA-F]{4}$#s', sprintf('%04s', $piece))) {
return false;
}
}
return $original;
}
}
// vim: et sw=4 sts=4

View file

@ -1,60 +1,60 @@
<?php
/**
* Processes an entire attribute array for corrections needing multiple values.
*
* Occasionally, a certain attribute will need to be removed and popped onto
* another value. Instead of creating a complex return syntax for
* HTMLPurifier_AttrDef, we just pass the whole attribute array to a
* specialized object and have that do the special work. That is the
* family of HTMLPurifier_AttrTransform.
*
* An attribute transformation can be assigned to run before or after
* HTMLPurifier_AttrDef validation. See HTMLPurifier_HTMLDefinition for
* more details.
*/
abstract class HTMLPurifier_AttrTransform
{
/**
* Abstract: makes changes to the attributes dependent on multiple values.
*
* @param array $attr Assoc array of attributes, usually from
* HTMLPurifier_Token_Tag::$attr
* @param HTMLPurifier_Config $config Mandatory HTMLPurifier_Config object.
* @param HTMLPurifier_Context $context Mandatory HTMLPurifier_Context object
* @return array Processed attribute array.
*/
abstract public function transform($attr, $config, $context);
/**
* Prepends CSS properties to the style attribute, creating the
* attribute if it doesn't exist.
* @param array &$attr Attribute array to process (passed by reference)
* @param string $css CSS to prepend
*/
public function prependCSS(&$attr, $css)
{
$attr['style'] = isset($attr['style']) ? $attr['style'] : '';
$attr['style'] = $css . $attr['style'];
}
/**
* Retrieves and removes an attribute
* @param array &$attr Attribute array to process (passed by reference)
* @param mixed $key Key of attribute to confiscate
* @return mixed
*/
public function confiscateAttr(&$attr, $key)
{
if (!isset($attr[$key])) {
return null;
}
$value = $attr[$key];
unset($attr[$key]);
return $value;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Processes an entire attribute array for corrections needing multiple values.
*
* Occasionally, a certain attribute will need to be removed and popped onto
* another value. Instead of creating a complex return syntax for
* HTMLPurifier_AttrDef, we just pass the whole attribute array to a
* specialized object and have that do the special work. That is the
* family of HTMLPurifier_AttrTransform.
*
* An attribute transformation can be assigned to run before or after
* HTMLPurifier_AttrDef validation. See HTMLPurifier_HTMLDefinition for
* more details.
*/
abstract class HTMLPurifier_AttrTransform
{
/**
* Abstract: makes changes to the attributes dependent on multiple values.
*
* @param array $attr Assoc array of attributes, usually from
* HTMLPurifier_Token_Tag::$attr
* @param HTMLPurifier_Config $config Mandatory HTMLPurifier_Config object.
* @param HTMLPurifier_Context $context Mandatory HTMLPurifier_Context object
* @return array Processed attribute array.
*/
abstract public function transform($attr, $config, $context);
/**
* Prepends CSS properties to the style attribute, creating the
* attribute if it doesn't exist.
* @param array &$attr Attribute array to process (passed by reference)
* @param string $css CSS to prepend
*/
public function prependCSS(&$attr, $css)
{
$attr['style'] = isset($attr['style']) ? $attr['style'] : '';
$attr['style'] = $css . $attr['style'];
}
/**
* Retrieves and removes an attribute
* @param array &$attr Attribute array to process (passed by reference)
* @param mixed $key Key of attribute to confiscate
* @return mixed
*/
public function confiscateAttr(&$attr, $key)
{
if (!isset($attr[$key])) {
return null;
}
$value = $attr[$key];
unset($attr[$key]);
return $value;
}
}
// vim: et sw=4 sts=4

View file

@ -1,28 +1,28 @@
<?php
/**
* Pre-transform that changes proprietary background attribute to CSS.
*/
class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['background'])) {
return $attr;
}
$background = $this->confiscateAttr($attr, 'background');
// some validation should happen here
$this->prependCSS($attr, "background-image:url($background);");
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Pre-transform that changes proprietary background attribute to CSS.
*/
class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['background'])) {
return $attr;
}
$background = $this->confiscateAttr($attr, 'background');
// some validation should happen here
$this->prependCSS($attr, "background-image:url($background);");
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,27 +1,27 @@
<?php
// this MUST be placed in post, as it assumes that any value in dir is valid
/**
* Post-trasnform that ensures that bdo tags have the dir attribute set.
*/
class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['dir'])) {
return $attr;
}
$attr['dir'] = $config->get('Attr.DefaultTextDir');
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
// this MUST be placed in post, as it assumes that any value in dir is valid
/**
* Post-trasnform that ensures that bdo tags have the dir attribute set.
*/
class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['dir'])) {
return $attr;
}
$attr['dir'] = $config->get('Attr.DefaultTextDir');
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,28 +1,28 @@
<?php
/**
* Pre-transform that changes deprecated bgcolor attribute to CSS.
*/
class HTMLPurifier_AttrTransform_BgColor extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['bgcolor'])) {
return $attr;
}
$bgcolor = $this->confiscateAttr($attr, 'bgcolor');
// some validation should happen here
$this->prependCSS($attr, "background-color:$bgcolor;");
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Pre-transform that changes deprecated bgcolor attribute to CSS.
*/
class HTMLPurifier_AttrTransform_BgColor extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['bgcolor'])) {
return $attr;
}
$bgcolor = $this->confiscateAttr($attr, 'bgcolor');
// some validation should happen here
$this->prependCSS($attr, "background-color:$bgcolor;");
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,47 +1,47 @@
<?php
/**
* Pre-transform that changes converts a boolean attribute to fixed CSS
*/
class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform
{
/**
* Name of boolean attribute that is trigger.
* @type string
*/
protected $attr;
/**
* CSS declarations to add to style, needs trailing semicolon.
* @type string
*/
protected $css;
/**
* @param string $attr attribute name to convert from
* @param string $css CSS declarations to add to style (needs semicolon)
*/
public function __construct($attr, $css)
{
$this->attr = $attr;
$this->css = $css;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->attr])) {
return $attr;
}
unset($attr[$this->attr]);
$this->prependCSS($attr, $this->css);
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Pre-transform that changes converts a boolean attribute to fixed CSS
*/
class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform
{
/**
* Name of boolean attribute that is trigger.
* @type string
*/
protected $attr;
/**
* CSS declarations to add to style, needs trailing semicolon.
* @type string
*/
protected $css;
/**
* @param string $attr attribute name to convert from
* @param string $css CSS declarations to add to style (needs semicolon)
*/
public function __construct($attr, $css)
{
$this->attr = $attr;
$this->css = $css;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->attr])) {
return $attr;
}
unset($attr[$this->attr]);
$this->prependCSS($attr, $this->css);
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,26 +1,26 @@
<?php
/**
* Pre-transform that changes deprecated border attribute to CSS.
*/
class HTMLPurifier_AttrTransform_Border extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['border'])) {
return $attr;
}
$border_width = $this->confiscateAttr($attr, 'border');
// some validation should happen here
$this->prependCSS($attr, "border:{$border_width}px solid;");
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Pre-transform that changes deprecated border attribute to CSS.
*/
class HTMLPurifier_AttrTransform_Border extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['border'])) {
return $attr;
}
$border_width = $this->confiscateAttr($attr, 'border');
// some validation should happen here
$this->prependCSS($attr, "border:{$border_width}px solid;");
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,68 +1,68 @@
<?php
/**
* Generic pre-transform that converts an attribute with a fixed number of
* values (enumerated) to CSS.
*/
class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform
{
/**
* Name of attribute to transform from.
* @type string
*/
protected $attr;
/**
* Lookup array of attribute values to CSS.
* @type array
*/
protected $enumToCSS = array();
/**
* Case sensitivity of the matching.
* @type bool
* @warning Currently can only be guaranteed to work with ASCII
* values.
*/
protected $caseSensitive = false;
/**
* @param string $attr Attribute name to transform from
* @param array $enum_to_css Lookup array of attribute values to CSS
* @param bool $case_sensitive Case sensitivity indicator, default false
*/
public function __construct($attr, $enum_to_css, $case_sensitive = false)
{
$this->attr = $attr;
$this->enumToCSS = $enum_to_css;
$this->caseSensitive = (bool)$case_sensitive;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->attr])) {
return $attr;
}
$value = trim($attr[$this->attr]);
unset($attr[$this->attr]);
if (!$this->caseSensitive) {
$value = strtolower($value);
}
if (!isset($this->enumToCSS[$value])) {
return $attr;
}
$this->prependCSS($attr, $this->enumToCSS[$value]);
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Generic pre-transform that converts an attribute with a fixed number of
* values (enumerated) to CSS.
*/
class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform
{
/**
* Name of attribute to transform from.
* @type string
*/
protected $attr;
/**
* Lookup array of attribute values to CSS.
* @type array
*/
protected $enumToCSS = array();
/**
* Case sensitivity of the matching.
* @type bool
* @warning Currently can only be guaranteed to work with ASCII
* values.
*/
protected $caseSensitive = false;
/**
* @param string $attr Attribute name to transform from
* @param array $enum_to_css Lookup array of attribute values to CSS
* @param bool $case_sensitive Case sensitivity indicator, default false
*/
public function __construct($attr, $enum_to_css, $case_sensitive = false)
{
$this->attr = $attr;
$this->enumToCSS = $enum_to_css;
$this->caseSensitive = (bool)$case_sensitive;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->attr])) {
return $attr;
}
$value = trim($attr[$this->attr]);
unset($attr[$this->attr]);
if (!$this->caseSensitive) {
$value = strtolower($value);
}
if (!isset($this->enumToCSS[$value])) {
return $attr;
}
$this->prependCSS($attr, $this->enumToCSS[$value]);
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,45 +1,45 @@
<?php
/**
* Class for handling width/height length attribute transformations to CSS
*/
class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
protected $name;
/**
* @type string
*/
protected $cssName;
public function __construct($name, $css_name = null)
{
$this->name = $name;
$this->cssName = $css_name ? $css_name : $name;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->name])) {
return $attr;
}
$length = $this->confiscateAttr($attr, $this->name);
if (ctype_digit($length)) {
$length .= 'px';
}
$this->prependCSS($attr, $this->cssName . ":$length;");
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Class for handling width/height length attribute transformations to CSS
*/
class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
protected $name;
/**
* @type string
*/
protected $cssName;
public function __construct($name, $css_name = null)
{
$this->name = $name;
$this->cssName = $css_name ? $css_name : $name;
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr[$this->name])) {
return $attr;
}
$length = $this->confiscateAttr($attr, $this->name);
if (ctype_digit($length)) {
$length .= 'px';
}
$this->prependCSS($attr, $this->cssName . ":$length;");
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,33 +1,33 @@
<?php
/**
* Pre-transform that changes deprecated name attribute to ID if necessary
*/
class HTMLPurifier_AttrTransform_Name extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// Abort early if we're using relaxed definition of name
if ($config->get('HTML.Attr.Name.UseCDATA')) {
return $attr;
}
if (!isset($attr['name'])) {
return $attr;
}
$id = $this->confiscateAttr($attr, 'name');
if (isset($attr['id'])) {
return $attr;
}
$attr['id'] = $id;
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Pre-transform that changes deprecated name attribute to ID if necessary
*/
class HTMLPurifier_AttrTransform_Name extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// Abort early if we're using relaxed definition of name
if ($config->get('HTML.Attr.Name.UseCDATA')) {
return $attr;
}
if (!isset($attr['name'])) {
return $attr;
}
$id = $this->confiscateAttr($attr, 'name');
if (isset($attr['id'])) {
return $attr;
}
$attr['id'] = $id;
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,41 +1,41 @@
<?php
/**
* Post-transform that performs validation to the name attribute; if
* it is present with an equivalent id attribute, it is passed through;
* otherwise validation is performed.
*/
class HTMLPurifier_AttrTransform_NameSync extends HTMLPurifier_AttrTransform
{
public function __construct()
{
$this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['name'])) {
return $attr;
}
$name = $attr['name'];
if (isset($attr['id']) && $attr['id'] === $name) {
return $attr;
}
$result = $this->idDef->validate($name, $config, $context);
if ($result === false) {
unset($attr['name']);
} else {
$attr['name'] = $result;
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Post-transform that performs validation to the name attribute; if
* it is present with an equivalent id attribute, it is passed through;
* otherwise validation is performed.
*/
class HTMLPurifier_AttrTransform_NameSync extends HTMLPurifier_AttrTransform
{
public function __construct()
{
$this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['name'])) {
return $attr;
}
$name = $attr['name'];
if (isset($attr['id']) && $attr['id'] === $name) {
return $attr;
}
$result = $this->idDef->validate($name, $config, $context);
if ($result === false) {
unset($attr['name']);
} else {
$attr['name'] = $result;
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,52 +1,52 @@
<?php
// must be called POST validation
/**
* Adds rel="nofollow" to all outbound links. This transform is
* only attached if Attr.Nofollow is TRUE.
*/
class HTMLPurifier_AttrTransform_Nofollow extends HTMLPurifier_AttrTransform
{
/**
* @type HTMLPurifier_URIParser
*/
private $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_URIParser();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['href'])) {
return $attr;
}
// XXX Kind of inefficient
$url = $this->parser->parse($attr['href']);
$scheme = $url->getSchemeObj($config, $context);
if ($scheme->browsable && !$url->isLocal($config, $context)) {
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
if (!in_array('nofollow', $rels)) {
$rels[] = 'nofollow';
}
$attr['rel'] = implode(' ', $rels);
} else {
$attr['rel'] = 'nofollow';
}
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
// must be called POST validation
/**
* Adds rel="nofollow" to all outbound links. This transform is
* only attached if Attr.Nofollow is TRUE.
*/
class HTMLPurifier_AttrTransform_Nofollow extends HTMLPurifier_AttrTransform
{
/**
* @type HTMLPurifier_URIParser
*/
private $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_URIParser();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['href'])) {
return $attr;
}
// XXX Kind of inefficient
$url = $this->parser->parse($attr['href']);
$scheme = $url->getSchemeObj($config, $context);
if ($scheme->browsable && !$url->isLocal($config, $context)) {
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
if (!in_array('nofollow', $rels)) {
$rels[] = 'nofollow';
}
$attr['rel'] = implode(' ', $rels);
} else {
$attr['rel'] = 'nofollow';
}
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,25 +1,25 @@
<?php
class HTMLPurifier_AttrTransform_SafeEmbed extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeEmbed";
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
$attr['allowscriptaccess'] = 'never';
$attr['allownetworking'] = 'internal';
$attr['type'] = 'application/x-shockwave-flash';
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
class HTMLPurifier_AttrTransform_SafeEmbed extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeEmbed";
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
$attr['allowscriptaccess'] = 'never';
$attr['allownetworking'] = 'internal';
$attr['type'] = 'application/x-shockwave-flash';
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,28 +1,28 @@
<?php
/**
* Writes default type for all objects. Currently only supports flash.
*/
class HTMLPurifier_AttrTransform_SafeObject extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeObject";
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['type'])) {
$attr['type'] = 'application/x-shockwave-flash';
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Writes default type for all objects. Currently only supports flash.
*/
class HTMLPurifier_AttrTransform_SafeObject extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeObject";
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['type'])) {
$attr['type'] = 'application/x-shockwave-flash';
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,79 +1,79 @@
<?php
/**
* Validates name/value pairs in param tags to be used in safe objects. This
* will only allow name values it recognizes, and pre-fill certain attributes
* with required values.
*
* @note
* This class only supports Flash. In the future, Quicktime support
* may be added.
*
* @warning
* This class expects an injector to add the necessary parameters tags.
*/
class HTMLPurifier_AttrTransform_SafeParam extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeParam";
/**
* @type HTMLPurifier_AttrDef_URI
*/
private $uri;
public function __construct()
{
$this->uri = new HTMLPurifier_AttrDef_URI(true); // embedded
$this->wmode = new HTMLPurifier_AttrDef_Enum(array('window', 'opaque', 'transparent'));
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// If we add support for other objects, we'll need to alter the
// transforms.
switch ($attr['name']) {
// application/x-shockwave-flash
// Keep this synchronized with Injector/SafeObject.php
case 'allowScriptAccess':
$attr['value'] = 'never';
break;
case 'allowNetworking':
$attr['value'] = 'internal';
break;
case 'allowFullScreen':
if ($config->get('HTML.FlashAllowFullScreen')) {
$attr['value'] = ($attr['value'] == 'true') ? 'true' : 'false';
} else {
$attr['value'] = 'false';
}
break;
case 'wmode':
$attr['value'] = $this->wmode->validate($attr['value'], $config, $context);
break;
case 'movie':
case 'src':
$attr['name'] = "movie";
$attr['value'] = $this->uri->validate($attr['value'], $config, $context);
break;
case 'flashvars':
// we're going to allow arbitrary inputs to the SWF, on
// the reasoning that it could only hack the SWF, not us.
break;
// add other cases to support other param name/value pairs
default:
$attr['name'] = $attr['value'] = null;
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates name/value pairs in param tags to be used in safe objects. This
* will only allow name values it recognizes, and pre-fill certain attributes
* with required values.
*
* @note
* This class only supports Flash. In the future, Quicktime support
* may be added.
*
* @warning
* This class expects an injector to add the necessary parameters tags.
*/
class HTMLPurifier_AttrTransform_SafeParam extends HTMLPurifier_AttrTransform
{
/**
* @type string
*/
public $name = "SafeParam";
/**
* @type HTMLPurifier_AttrDef_URI
*/
private $uri;
public function __construct()
{
$this->uri = new HTMLPurifier_AttrDef_URI(true); // embedded
$this->wmode = new HTMLPurifier_AttrDef_Enum(array('window', 'opaque', 'transparent'));
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// If we add support for other objects, we'll need to alter the
// transforms.
switch ($attr['name']) {
// application/x-shockwave-flash
// Keep this synchronized with Injector/SafeObject.php
case 'allowScriptAccess':
$attr['value'] = 'never';
break;
case 'allowNetworking':
$attr['value'] = 'internal';
break;
case 'allowFullScreen':
if ($config->get('HTML.FlashAllowFullScreen')) {
$attr['value'] = ($attr['value'] == 'true') ? 'true' : 'false';
} else {
$attr['value'] = 'false';
}
break;
case 'wmode':
$attr['value'] = $this->wmode->validate($attr['value'], $config, $context);
break;
case 'movie':
case 'src':
$attr['name'] = "movie";
$attr['value'] = $this->uri->validate($attr['value'], $config, $context);
break;
case 'flashvars':
// we're going to allow arbitrary inputs to the SWF, on
// the reasoning that it could only hack the SWF, not us.
break;
// add other cases to support other param name/value pairs
default:
$attr['name'] = $attr['value'] = null;
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,23 +1,23 @@
<?php
/**
* Implements required attribute stipulation for <script>
*/
class HTMLPurifier_AttrTransform_ScriptRequired extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['type'])) {
$attr['type'] = 'text/javascript';
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Implements required attribute stipulation for <script>
*/
class HTMLPurifier_AttrTransform_ScriptRequired extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['type'])) {
$attr['type'] = 'text/javascript';
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,45 +1,45 @@
<?php
// must be called POST validation
/**
* Adds target="blank" to all outbound links. This transform is
* only attached if Attr.TargetBlank is TRUE. This works regardless
* of whether or not Attr.AllowedFrameTargets
*/
class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform
{
/**
* @type HTMLPurifier_URIParser
*/
private $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_URIParser();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['href'])) {
return $attr;
}
// XXX Kind of inefficient
$url = $this->parser->parse($attr['href']);
$scheme = $url->getSchemeObj($config, $context);
if ($scheme->browsable && !$url->isBenign($config, $context)) {
$attr['target'] = '_blank';
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
// must be called POST validation
/**
* Adds target="blank" to all outbound links. This transform is
* only attached if Attr.TargetBlank is TRUE. This works regardless
* of whether or not Attr.AllowedFrameTargets
*/
class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform
{
/**
* @type HTMLPurifier_URIParser
*/
private $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_URIParser();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['href'])) {
return $attr;
}
// XXX Kind of inefficient
$url = $this->parser->parse($attr['href']);
$scheme = $url->getSchemeObj($config, $context);
if ($scheme->browsable && !$url->isBenign($config, $context)) {
$attr['target'] = '_blank';
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,37 +1,37 @@
<?php
// must be called POST validation
/**
* Adds rel="noopener" to any links which target a different window
* than the current one. This is used to prevent malicious websites
* from silently replacing the original window, which could be used
* to do phishing.
* This transform is controlled by %HTML.TargetNoopener.
*/
class HTMLPurifier_AttrTransform_TargetNoopener extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
} else {
$rels = array();
}
if (isset($attr['target']) && !in_array('noopener', $rels)) {
$rels[] = 'noopener';
}
if (!empty($rels) || isset($attr['rel'])) {
$attr['rel'] = implode(' ', $rels);
}
return $attr;
}
}
<?php
// must be called POST validation
/**
* Adds rel="noopener" to any links which target a different window
* than the current one. This is used to prevent malicious websites
* from silently replacing the original window, which could be used
* to do phishing.
* This transform is controlled by %HTML.TargetNoopener.
*/
class HTMLPurifier_AttrTransform_TargetNoopener extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
} else {
$rels = array();
}
if (isset($attr['target']) && !in_array('noopener', $rels)) {
$rels[] = 'noopener';
}
if (!empty($rels) || isset($attr['rel'])) {
$attr['rel'] = implode(' ', $rels);
}
return $attr;
}
}

View file

@ -1,37 +1,37 @@
<?php
// must be called POST validation
/**
* Adds rel="noreferrer" to any links which target a different window
* than the current one. This is used to prevent malicious websites
* from silently replacing the original window, which could be used
* to do phishing.
* This transform is controlled by %HTML.TargetNoreferrer.
*/
class HTMLPurifier_AttrTransform_TargetNoreferrer extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
} else {
$rels = array();
}
if (isset($attr['target']) && !in_array('noreferrer', $rels)) {
$rels[] = 'noreferrer';
}
if (!empty($rels) || isset($attr['rel'])) {
$attr['rel'] = implode(' ', $rels);
}
return $attr;
}
}
<?php
// must be called POST validation
/**
* Adds rel="noreferrer" to any links which target a different window
* than the current one. This is used to prevent malicious websites
* from silently replacing the original window, which could be used
* to do phishing.
* This transform is controlled by %HTML.TargetNoreferrer.
*/
class HTMLPurifier_AttrTransform_TargetNoreferrer extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (isset($attr['rel'])) {
$rels = explode(' ', $attr['rel']);
} else {
$rels = array();
}
if (isset($attr['target']) && !in_array('noreferrer', $rels)) {
$rels[] = 'noreferrer';
}
if (!empty($rels) || isset($attr['rel'])) {
$attr['rel'] = implode(' ', $rels);
}
return $attr;
}
}

View file

@ -1,27 +1,27 @@
<?php
/**
* Sets height/width defaults for <textarea>
*/
class HTMLPurifier_AttrTransform_Textarea extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// Calculated from Firefox
if (!isset($attr['cols'])) {
$attr['cols'] = '22';
}
if (!isset($attr['rows'])) {
$attr['rows'] = '3';
}
return $attr;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Sets height/width defaults for <textarea>
*/
class HTMLPurifier_AttrTransform_Textarea extends HTMLPurifier_AttrTransform
{
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
// Calculated from Firefox
if (!isset($attr['cols'])) {
$attr['cols'] = '22';
}
if (!isset($attr['rows'])) {
$attr['rows'] = '3';
}
return $attr;
}
}
// vim: et sw=4 sts=4

View file

@ -1,96 +1,96 @@
<?php
/**
* Provides lookup array of attribute types to HTMLPurifier_AttrDef objects
*/
class HTMLPurifier_AttrTypes
{
/**
* Lookup array of attribute string identifiers to concrete implementations.
* @type HTMLPurifier_AttrDef[]
*/
protected $info = array();
/**
* Constructs the info array, supplying default implementations for attribute
* types.
*/
public function __construct()
{
// XXX This is kind of poor, since we don't actually /clone/
// instances; instead, we use the supplied make() attribute. So,
// the underlying class must know how to deal with arguments.
// With the old implementation of Enum, that ignored its
// arguments when handling a make dispatch, the IAlign
// definition wouldn't work.
// pseudo-types, must be instantiated via shorthand
$this->info['Enum'] = new HTMLPurifier_AttrDef_Enum();
$this->info['Bool'] = new HTMLPurifier_AttrDef_HTML_Bool();
$this->info['CDATA'] = new HTMLPurifier_AttrDef_Text();
$this->info['ID'] = new HTMLPurifier_AttrDef_HTML_ID();
$this->info['Length'] = new HTMLPurifier_AttrDef_HTML_Length();
$this->info['MultiLength'] = new HTMLPurifier_AttrDef_HTML_MultiLength();
$this->info['NMTOKENS'] = new HTMLPurifier_AttrDef_HTML_Nmtokens();
$this->info['Pixels'] = new HTMLPurifier_AttrDef_HTML_Pixels();
$this->info['Text'] = new HTMLPurifier_AttrDef_Text();
$this->info['URI'] = new HTMLPurifier_AttrDef_URI();
$this->info['LanguageCode'] = new HTMLPurifier_AttrDef_Lang();
$this->info['Color'] = new HTMLPurifier_AttrDef_HTML_Color();
$this->info['IAlign'] = self::makeEnum('top,middle,bottom,left,right');
$this->info['LAlign'] = self::makeEnum('top,bottom,left,right');
$this->info['FrameTarget'] = new HTMLPurifier_AttrDef_HTML_FrameTarget();
// unimplemented aliases
$this->info['ContentType'] = new HTMLPurifier_AttrDef_Text();
$this->info['ContentTypes'] = new HTMLPurifier_AttrDef_Text();
$this->info['Charsets'] = new HTMLPurifier_AttrDef_Text();
$this->info['Character'] = new HTMLPurifier_AttrDef_Text();
// "proprietary" types
$this->info['Class'] = new HTMLPurifier_AttrDef_HTML_Class();
// number is really a positive integer (one or more digits)
// FIXME: ^^ not always, see start and value of list items
$this->info['Number'] = new HTMLPurifier_AttrDef_Integer(false, false, true);
}
private static function makeEnum($in)
{
return new HTMLPurifier_AttrDef_Clone(new HTMLPurifier_AttrDef_Enum(explode(',', $in)));
}
/**
* Retrieves a type
* @param string $type String type name
* @return HTMLPurifier_AttrDef Object AttrDef for type
*/
public function get($type)
{
// determine if there is any extra info tacked on
if (strpos($type, '#') !== false) {
list($type, $string) = explode('#', $type, 2);
} else {
$string = '';
}
if (!isset($this->info[$type])) {
trigger_error('Cannot retrieve undefined attribute type ' . $type, E_USER_ERROR);
return;
}
return $this->info[$type]->make($string);
}
/**
* Sets a new implementation for a type
* @param string $type String type name
* @param HTMLPurifier_AttrDef $impl Object AttrDef for type
*/
public function set($type, $impl)
{
$this->info[$type] = $impl;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Provides lookup array of attribute types to HTMLPurifier_AttrDef objects
*/
class HTMLPurifier_AttrTypes
{
/**
* Lookup array of attribute string identifiers to concrete implementations.
* @type HTMLPurifier_AttrDef[]
*/
protected $info = array();
/**
* Constructs the info array, supplying default implementations for attribute
* types.
*/
public function __construct()
{
// XXX This is kind of poor, since we don't actually /clone/
// instances; instead, we use the supplied make() attribute. So,
// the underlying class must know how to deal with arguments.
// With the old implementation of Enum, that ignored its
// arguments when handling a make dispatch, the IAlign
// definition wouldn't work.
// pseudo-types, must be instantiated via shorthand
$this->info['Enum'] = new HTMLPurifier_AttrDef_Enum();
$this->info['Bool'] = new HTMLPurifier_AttrDef_HTML_Bool();
$this->info['CDATA'] = new HTMLPurifier_AttrDef_Text();
$this->info['ID'] = new HTMLPurifier_AttrDef_HTML_ID();
$this->info['Length'] = new HTMLPurifier_AttrDef_HTML_Length();
$this->info['MultiLength'] = new HTMLPurifier_AttrDef_HTML_MultiLength();
$this->info['NMTOKENS'] = new HTMLPurifier_AttrDef_HTML_Nmtokens();
$this->info['Pixels'] = new HTMLPurifier_AttrDef_HTML_Pixels();
$this->info['Text'] = new HTMLPurifier_AttrDef_Text();
$this->info['URI'] = new HTMLPurifier_AttrDef_URI();
$this->info['LanguageCode'] = new HTMLPurifier_AttrDef_Lang();
$this->info['Color'] = new HTMLPurifier_AttrDef_HTML_Color();
$this->info['IAlign'] = self::makeEnum('top,middle,bottom,left,right');
$this->info['LAlign'] = self::makeEnum('top,bottom,left,right');
$this->info['FrameTarget'] = new HTMLPurifier_AttrDef_HTML_FrameTarget();
// unimplemented aliases
$this->info['ContentType'] = new HTMLPurifier_AttrDef_Text();
$this->info['ContentTypes'] = new HTMLPurifier_AttrDef_Text();
$this->info['Charsets'] = new HTMLPurifier_AttrDef_Text();
$this->info['Character'] = new HTMLPurifier_AttrDef_Text();
// "proprietary" types
$this->info['Class'] = new HTMLPurifier_AttrDef_HTML_Class();
// number is really a positive integer (one or more digits)
// FIXME: ^^ not always, see start and value of list items
$this->info['Number'] = new HTMLPurifier_AttrDef_Integer(false, false, true);
}
private static function makeEnum($in)
{
return new HTMLPurifier_AttrDef_Clone(new HTMLPurifier_AttrDef_Enum(explode(',', $in)));
}
/**
* Retrieves a type
* @param string $type String type name
* @return HTMLPurifier_AttrDef Object AttrDef for type
*/
public function get($type)
{
// determine if there is any extra info tacked on
if (strpos($type, '#') !== false) {
list($type, $string) = explode('#', $type, 2);
} else {
$string = '';
}
if (!isset($this->info[$type])) {
trigger_error('Cannot retrieve undefined attribute type ' . $type, E_USER_ERROR);
return;
}
return $this->info[$type]->make($string);
}
/**
* Sets a new implementation for a type
* @param string $type String type name
* @param HTMLPurifier_AttrDef $impl Object AttrDef for type
*/
public function set($type, $impl)
{
$this->info[$type] = $impl;
}
}
// vim: et sw=4 sts=4

View file

@ -1,178 +1,178 @@
<?php
/**
* Validates the attributes of a token. Doesn't manage required attributes
* very well. The only reason we factored this out was because RemoveForeignElements
* also needed it besides ValidateAttributes.
*/
class HTMLPurifier_AttrValidator
{
/**
* Validates the attributes of a token, mutating it as necessary.
* that has valid tokens
* @param HTMLPurifier_Token $token Token to validate.
* @param HTMLPurifier_Config $config Instance of HTMLPurifier_Config
* @param HTMLPurifier_Context $context Instance of HTMLPurifier_Context
*/
public function validateToken($token, $config, $context)
{
$definition = $config->getHTMLDefinition();
$e =& $context->get('ErrorCollector', true);
// initialize IDAccumulator if necessary
$ok =& $context->get('IDAccumulator', true);
if (!$ok) {
$id_accumulator = HTMLPurifier_IDAccumulator::build($config, $context);
$context->register('IDAccumulator', $id_accumulator);
}
// initialize CurrentToken if necessary
$current_token =& $context->get('CurrentToken', true);
if (!$current_token) {
$context->register('CurrentToken', $token);
}
if (!$token instanceof HTMLPurifier_Token_Start &&
!$token instanceof HTMLPurifier_Token_Empty
) {
return;
}
// create alias to global definition array, see also $defs
// DEFINITION CALL
$d_defs = $definition->info_global_attr;
// don't update token until the very end, to ensure an atomic update
$attr = $token->attr;
// do global transformations (pre)
// nothing currently utilizes this
foreach ($definition->info_attr_transform_pre as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// do local transformations only applicable to this element (pre)
// ex. <p align="right"> to <p style="text-align:right;">
foreach ($definition->info[$token->name]->attr_transform_pre as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// create alias to this element's attribute definition array, see
// also $d_defs (global attribute definition array)
// DEFINITION CALL
$defs = $definition->info[$token->name]->attr;
$attr_key = false;
$context->register('CurrentAttr', $attr_key);
// iterate through all the attribute keypairs
// Watch out for name collisions: $key has previously been used
foreach ($attr as $attr_key => $value) {
// call the definition
if (isset($defs[$attr_key])) {
// there is a local definition defined
if ($defs[$attr_key] === false) {
// We've explicitly been told not to allow this element.
// This is usually when there's a global definition
// that must be overridden.
// Theoretically speaking, we could have a
// AttrDef_DenyAll, but this is faster!
$result = false;
} else {
// validate according to the element's definition
$result = $defs[$attr_key]->validate(
$value,
$config,
$context
);
}
} elseif (isset($d_defs[$attr_key])) {
// there is a global definition defined, validate according
// to the global definition
$result = $d_defs[$attr_key]->validate(
$value,
$config,
$context
);
} else {
// system never heard of the attribute? DELETE!
$result = false;
}
// put the results into effect
if ($result === false || $result === null) {
// this is a generic error message that should replaced
// with more specific ones when possible
if ($e) {
$e->send(E_ERROR, 'AttrValidator: Attribute removed');
}
// remove the attribute
unset($attr[$attr_key]);
} elseif (is_string($result)) {
// generally, if a substitution is happening, there
// was some sort of implicit correction going on. We'll
// delegate it to the attribute classes to say exactly what.
// simple substitution
$attr[$attr_key] = $result;
} else {
// nothing happens
}
// we'd also want slightly more complicated substitution
// involving an array as the return value,
// although we're not sure how colliding attributes would
// resolve (certain ones would be completely overriden,
// others would prepend themselves).
}
$context->destroy('CurrentAttr');
// post transforms
// global (error reporting untested)
foreach ($definition->info_attr_transform_post as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// local (error reporting untested)
foreach ($definition->info[$token->name]->attr_transform_post as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
$token->attr = $attr;
// destroy CurrentToken if we made it ourselves
if (!$current_token) {
$context->destroy('CurrentToken');
}
}
}
// vim: et sw=4 sts=4
<?php
/**
* Validates the attributes of a token. Doesn't manage required attributes
* very well. The only reason we factored this out was because RemoveForeignElements
* also needed it besides ValidateAttributes.
*/
class HTMLPurifier_AttrValidator
{
/**
* Validates the attributes of a token, mutating it as necessary.
* that has valid tokens
* @param HTMLPurifier_Token $token Token to validate.
* @param HTMLPurifier_Config $config Instance of HTMLPurifier_Config
* @param HTMLPurifier_Context $context Instance of HTMLPurifier_Context
*/
public function validateToken($token, $config, $context)
{
$definition = $config->getHTMLDefinition();
$e =& $context->get('ErrorCollector', true);
// initialize IDAccumulator if necessary
$ok =& $context->get('IDAccumulator', true);
if (!$ok) {
$id_accumulator = HTMLPurifier_IDAccumulator::build($config, $context);
$context->register('IDAccumulator', $id_accumulator);
}
// initialize CurrentToken if necessary
$current_token =& $context->get('CurrentToken', true);
if (!$current_token) {
$context->register('CurrentToken', $token);
}
if (!$token instanceof HTMLPurifier_Token_Start &&
!$token instanceof HTMLPurifier_Token_Empty
) {
return;
}
// create alias to global definition array, see also $defs
// DEFINITION CALL
$d_defs = $definition->info_global_attr;
// don't update token until the very end, to ensure an atomic update
$attr = $token->attr;
// do global transformations (pre)
// nothing currently utilizes this
foreach ($definition->info_attr_transform_pre as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// do local transformations only applicable to this element (pre)
// ex. <p align="right"> to <p style="text-align:right;">
foreach ($definition->info[$token->name]->attr_transform_pre as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// create alias to this element's attribute definition array, see
// also $d_defs (global attribute definition array)
// DEFINITION CALL
$defs = $definition->info[$token->name]->attr;
$attr_key = false;
$context->register('CurrentAttr', $attr_key);
// iterate through all the attribute keypairs
// Watch out for name collisions: $key has previously been used
foreach ($attr as $attr_key => $value) {
// call the definition
if (isset($defs[$attr_key])) {
// there is a local definition defined
if ($defs[$attr_key] === false) {
// We've explicitly been told not to allow this element.
// This is usually when there's a global definition
// that must be overridden.
// Theoretically speaking, we could have a
// AttrDef_DenyAll, but this is faster!
$result = false;
} else {
// validate according to the element's definition
$result = $defs[$attr_key]->validate(
$value,
$config,
$context
);
}
} elseif (isset($d_defs[$attr_key])) {
// there is a global definition defined, validate according
// to the global definition
$result = $d_defs[$attr_key]->validate(
$value,
$config,
$context
);
} else {
// system never heard of the attribute? DELETE!
$result = false;
}
// put the results into effect
if ($result === false || $result === null) {
// this is a generic error message that should replaced
// with more specific ones when possible
if ($e) {
$e->send(E_ERROR, 'AttrValidator: Attribute removed');
}
// remove the attribute
unset($attr[$attr_key]);
} elseif (is_string($result)) {
// generally, if a substitution is happening, there
// was some sort of implicit correction going on. We'll
// delegate it to the attribute classes to say exactly what.
// simple substitution
$attr[$attr_key] = $result;
} else {
// nothing happens
}
// we'd also want slightly more complicated substitution
// involving an array as the return value,
// although we're not sure how colliding attributes would
// resolve (certain ones would be completely overriden,
// others would prepend themselves).
}
$context->destroy('CurrentAttr');
// post transforms
// global (error reporting untested)
foreach ($definition->info_attr_transform_post as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
// local (error reporting untested)
foreach ($definition->info[$token->name]->attr_transform_post as $transform) {
$attr = $transform->transform($o = $attr, $config, $context);
if ($e) {
if ($attr != $o) {
$e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
}
}
}
$token->attr = $attr;
// destroy CurrentToken if we made it ourselves
if (!$current_token) {
$context->destroy('CurrentToken');
}
}
}
// vim: et sw=4 sts=4

View file

@ -1,124 +1,124 @@
<?php
// constants are slow, so we use as few as possible
if (!defined('HTMLPURIFIER_PREFIX')) {
define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));
}
// accomodations for versions earlier than 5.0.2
// borrowed from PHP_Compat, LGPL licensed, by Aidan Lister <aidan@php.net>
if (!defined('PHP_EOL')) {
switch (strtoupper(substr(PHP_OS, 0, 3))) {
case 'WIN':
define('PHP_EOL', "\r\n");
break;
case 'DAR':
define('PHP_EOL', "\r");
break;
default:
define('PHP_EOL', "\n");
}
}
/**
* Bootstrap class that contains meta-functionality for HTML Purifier such as
* the autoload function.
*
* @note
* This class may be used without any other files from HTML Purifier.
*/
class HTMLPurifier_Bootstrap
{
/**
* Autoload function for HTML Purifier
* @param string $class Class to load
* @return bool
*/
public static function autoload($class)
{
$file = HTMLPurifier_Bootstrap::getPath($class);
if (!$file) {
return false;
}
// Technically speaking, it should be ok and more efficient to
// just do 'require', but Antonio Parraga reports that with
// Zend extensions such as Zend debugger and APC, this invariant
// may be broken. Since we have efficient alternatives, pay
// the cost here and avoid the bug.
require_once HTMLPURIFIER_PREFIX . '/' . $file;
return true;
}
/**
* Returns the path for a specific class.
* @param string $class Class path to get
* @return string
*/
public static function getPath($class)
{
if (strncmp('HTMLPurifier', $class, 12) !== 0) {
return false;
}
// Custom implementations
if (strncmp('HTMLPurifier_Language_', $class, 22) === 0) {
$code = str_replace('_', '-', substr($class, 22));
$file = 'HTMLPurifier/Language/classes/' . $code . '.php';
} else {
$file = str_replace('_', '/', $class) . '.php';
}
if (!file_exists(HTMLPURIFIER_PREFIX . '/' . $file)) {
return false;
}
return $file;
}
/**
* "Pre-registers" our autoloader on the SPL stack.
*/
public static function registerAutoload()
{
$autoload = array('HTMLPurifier_Bootstrap', 'autoload');
if (($funcs = spl_autoload_functions()) === false) {
spl_autoload_register($autoload);
} elseif (function_exists('spl_autoload_unregister')) {
if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
// prepend flag exists, no need for shenanigans
spl_autoload_register($autoload, true, true);
} else {
$buggy = version_compare(PHP_VERSION, '5.2.11', '<');
$compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
version_compare(PHP_VERSION, '5.1.0', '>=');
foreach ($funcs as $func) {
if ($buggy && is_array($func)) {
// :TRICKY: There are some compatibility issues and some
// places where we need to error out
$reflector = new ReflectionMethod($func[0], $func[1]);
if (!$reflector->isStatic()) {
throw new Exception(
'HTML Purifier autoloader registrar is not compatible
with non-static object methods due to PHP Bug #44144;
Please do not use HTMLPurifier.autoload.php (or any
file that includes this file); instead, place the code:
spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
after your own autoloaders.'
);
}
// Suprisingly, spl_autoload_register supports the
// Class::staticMethod callback format, although call_user_func doesn't
if ($compat) {
$func = implode('::', $func);
}
}
spl_autoload_unregister($func);
}
spl_autoload_register($autoload);
foreach ($funcs as $func) {
spl_autoload_register($func);
}
}
}
}
}
// vim: et sw=4 sts=4
<?php
// constants are slow, so we use as few as possible
if (!defined('HTMLPURIFIER_PREFIX')) {
define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));
}
// accomodations for versions earlier than 5.0.2
// borrowed from PHP_Compat, LGPL licensed, by Aidan Lister <aidan@php.net>
if (!defined('PHP_EOL')) {
switch (strtoupper(substr(PHP_OS, 0, 3))) {
case 'WIN':
define('PHP_EOL', "\r\n");
break;
case 'DAR':
define('PHP_EOL', "\r");
break;
default:
define('PHP_EOL', "\n");
}
}
/**
* Bootstrap class that contains meta-functionality for HTML Purifier such as
* the autoload function.
*
* @note
* This class may be used without any other files from HTML Purifier.
*/
class HTMLPurifier_Bootstrap
{
/**
* Autoload function for HTML Purifier
* @param string $class Class to load
* @return bool
*/
public static function autoload($class)
{
$file = HTMLPurifier_Bootstrap::getPath($class);
if (!$file) {
return false;
}
// Technically speaking, it should be ok and more efficient to
// just do 'require', but Antonio Parraga reports that with
// Zend extensions such as Zend debugger and APC, this invariant
// may be broken. Since we have efficient alternatives, pay
// the cost here and avoid the bug.
require_once HTMLPURIFIER_PREFIX . '/' . $file;
return true;
}
/**
* Returns the path for a specific class.
* @param string $class Class path to get
* @return string
*/
public static function getPath($class)
{
if (strncmp('HTMLPurifier', $class, 12) !== 0) {
return false;
}
// Custom implementations
if (strncmp('HTMLPurifier_Language_', $class, 22) === 0) {
$code = str_replace('_', '-', substr($class, 22));
$file = 'HTMLPurifier/Language/classes/' . $code . '.php';
} else {
$file = str_replace('_', '/', $class) . '.php';
}
if (!file_exists(HTMLPURIFIER_PREFIX . '/' . $file)) {
return false;
}
return $file;
}
/**
* "Pre-registers" our autoloader on the SPL stack.
*/
public static function registerAutoload()
{
$autoload = array('HTMLPurifier_Bootstrap', 'autoload');
if (($funcs = spl_autoload_functions()) === false) {
spl_autoload_register($autoload);
} elseif (function_exists('spl_autoload_unregister')) {
if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
// prepend flag exists, no need for shenanigans
spl_autoload_register($autoload, true, true);
} else {
$buggy = version_compare(PHP_VERSION, '5.2.11', '<');
$compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
version_compare(PHP_VERSION, '5.1.0', '>=');
foreach ($funcs as $func) {
if ($buggy && is_array($func)) {
// :TRICKY: There are some compatibility issues and some
// places where we need to error out
$reflector = new ReflectionMethod($func[0], $func[1]);
if (!$reflector->isStatic()) {
throw new Exception(
'HTML Purifier autoloader registrar is not compatible
with non-static object methods due to PHP Bug #44144;
Please do not use HTMLPurifier.autoload.php (or any
file that includes this file); instead, place the code:
spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
after your own autoloaders.'
);
}
// Suprisingly, spl_autoload_register supports the
// Class::staticMethod callback format, although call_user_func doesn't
if ($compat) {
$func = implode('::', $func);
}
}
spl_autoload_unregister($func);
}
spl_autoload_register($autoload);
foreach ($funcs as $func) {
spl_autoload_register($func);
}
}
}
}
}
// vim: et sw=4 sts=4

View file

@ -1,224 +1,224 @@
<?php
/**
* Definition for tables. The general idea is to extract out all of the
* essential bits, and then reconstruct it later.
*
* This is a bit confusing, because the DTDs and the W3C
* validators seem to disagree on the appropriate definition. The
* DTD claims:
*
* (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)
*
* But actually, the HTML4 spec then has this to say:
*
* The TBODY start tag is always required except when the table
* contains only one table body and no table head or foot sections.
* The TBODY end tag may always be safely omitted.
*
* So the DTD is kind of wrong. The validator is, unfortunately, kind
* of on crack.
*
* The definition changed again in XHTML1.1; and in my opinion, this
* formulation makes the most sense.
*
* caption?, ( col* | colgroup* ), (( thead?, tfoot?, tbody+ ) | ( tr+ ))
*
* Essentially, we have two modes: thead/tfoot/tbody mode, and tr mode.
* If we encounter a thead, tfoot or tbody, we are placed in the former
* mode, and we *must* wrap any stray tr segments with a tbody. But if
* we don't run into any of them, just have tr tags is OK.
*/
class HTMLPurifier_ChildDef_Table extends HTMLPurifier_ChildDef
{
/**
* @type bool
*/
public $allow_empty = false;
/**
* @type string
*/
public $type = 'table';
/**
* @type array
*/
public $elements = array(
'tr' => true,
'tbody' => true,
'thead' => true,
'tfoot' => true,
'caption' => true,
'colgroup' => true,
'col' => true
);
public function __construct()
{
}
/**
* @param array $children
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function validateChildren($children, $config, $context)
{
if (empty($children)) {
return false;
}
// only one of these elements is allowed in a table
$caption = false;
$thead = false;
$tfoot = false;
// whitespace
$initial_ws = array();
$after_caption_ws = array();
$after_thead_ws = array();
$after_tfoot_ws = array();
// as many of these as you want
$cols = array();
$content = array();
$tbody_mode = false; // if true, then we need to wrap any stray
// <tr>s with a <tbody>.
$ws_accum =& $initial_ws;
foreach ($children as $node) {
if ($node instanceof HTMLPurifier_Node_Comment) {
$ws_accum[] = $node;
continue;
}
switch ($node->name) {
case 'tbody':
$tbody_mode = true;
// fall through
case 'tr':
$content[] = $node;
$ws_accum =& $content;
break;
case 'caption':
// there can only be one caption!
if ($caption !== false) break;
$caption = $node;
$ws_accum =& $after_caption_ws;
break;
case 'thead':
$tbody_mode = true;
// XXX This breaks rendering properties with
// Firefox, which never floats a <thead> to
// the top. Ever. (Our scheme will float the
// first <thead> to the top.) So maybe
// <thead>s that are not first should be
// turned into <tbody>? Very tricky, indeed.
if ($thead === false) {
$thead = $node;
$ws_accum =& $after_thead_ws;
} else {
// Oops, there's a second one! What
// should we do? Current behavior is to
// transmutate the first and last entries into
// tbody tags, and then put into content.
// Maybe a better idea is to *attach
// it* to the existing thead or tfoot?
// We don't do this, because Firefox
// doesn't float an extra tfoot to the
// bottom like it does for the first one.
$node->name = 'tbody';
$content[] = $node;
$ws_accum =& $content;
}
break;
case 'tfoot':
// see above for some aveats
$tbody_mode = true;
if ($tfoot === false) {
$tfoot = $node;
$ws_accum =& $after_tfoot_ws;
} else {
$node->name = 'tbody';
$content[] = $node;
$ws_accum =& $content;
}
break;
case 'colgroup':
case 'col':
$cols[] = $node;
$ws_accum =& $cols;
break;
case '#PCDATA':
// How is whitespace handled? We treat is as sticky to
// the *end* of the previous element. So all of the
// nonsense we have worked on is to keep things
// together.
if (!empty($node->is_whitespace)) {
$ws_accum[] = $node;
}
break;
}
}
if (empty($content)) {
return false;
}
$ret = $initial_ws;
if ($caption !== false) {
$ret[] = $caption;
$ret = array_merge($ret, $after_caption_ws);
}
if ($cols !== false) {
$ret = array_merge($ret, $cols);
}
if ($thead !== false) {
$ret[] = $thead;
$ret = array_merge($ret, $after_thead_ws);
}
if ($tfoot !== false) {
$ret[] = $tfoot;
$ret = array_merge($ret, $after_tfoot_ws);
}
if ($tbody_mode) {
// we have to shuffle tr into tbody
$current_tr_tbody = null;
foreach($content as $node) {
switch ($node->name) {
case 'tbody':
$current_tr_tbody = null;
$ret[] = $node;
break;
case 'tr':
if ($current_tr_tbody === null) {
$current_tr_tbody = new HTMLPurifier_Node_Element('tbody');
$ret[] = $current_tr_tbody;
}
$current_tr_tbody->children[] = $node;
break;
case '#PCDATA':
//assert($node->is_whitespace);
if ($current_tr_tbody === null) {
$ret[] = $node;
} else {
$current_tr_tbody->children[] = $node;
}
break;
}
}
} else {
$ret = array_merge($ret, $content);
}
return $ret;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Definition for tables. The general idea is to extract out all of the
* essential bits, and then reconstruct it later.
*
* This is a bit confusing, because the DTDs and the W3C
* validators seem to disagree on the appropriate definition. The
* DTD claims:
*
* (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)
*
* But actually, the HTML4 spec then has this to say:
*
* The TBODY start tag is always required except when the table
* contains only one table body and no table head or foot sections.
* The TBODY end tag may always be safely omitted.
*
* So the DTD is kind of wrong. The validator is, unfortunately, kind
* of on crack.
*
* The definition changed again in XHTML1.1; and in my opinion, this
* formulation makes the most sense.
*
* caption?, ( col* | colgroup* ), (( thead?, tfoot?, tbody+ ) | ( tr+ ))
*
* Essentially, we have two modes: thead/tfoot/tbody mode, and tr mode.
* If we encounter a thead, tfoot or tbody, we are placed in the former
* mode, and we *must* wrap any stray tr segments with a tbody. But if
* we don't run into any of them, just have tr tags is OK.
*/
class HTMLPurifier_ChildDef_Table extends HTMLPurifier_ChildDef
{
/**
* @type bool
*/
public $allow_empty = false;
/**
* @type string
*/
public $type = 'table';
/**
* @type array
*/
public $elements = array(
'tr' => true,
'tbody' => true,
'thead' => true,
'tfoot' => true,
'caption' => true,
'colgroup' => true,
'col' => true
);
public function __construct()
{
}
/**
* @param array $children
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function validateChildren($children, $config, $context)
{
if (empty($children)) {
return false;
}
// only one of these elements is allowed in a table
$caption = false;
$thead = false;
$tfoot = false;
// whitespace
$initial_ws = array();
$after_caption_ws = array();
$after_thead_ws = array();
$after_tfoot_ws = array();
// as many of these as you want
$cols = array();
$content = array();
$tbody_mode = false; // if true, then we need to wrap any stray
// <tr>s with a <tbody>.
$ws_accum =& $initial_ws;
foreach ($children as $node) {
if ($node instanceof HTMLPurifier_Node_Comment) {
$ws_accum[] = $node;
continue;
}
switch ($node->name) {
case 'tbody':
$tbody_mode = true;
// fall through
case 'tr':
$content[] = $node;
$ws_accum =& $content;
break;
case 'caption':
// there can only be one caption!
if ($caption !== false) break;
$caption = $node;
$ws_accum =& $after_caption_ws;
break;
case 'thead':
$tbody_mode = true;
// XXX This breaks rendering properties with
// Firefox, which never floats a <thead> to
// the top. Ever. (Our scheme will float the
// first <thead> to the top.) So maybe
// <thead>s that are not first should be
// turned into <tbody>? Very tricky, indeed.
if ($thead === false) {
$thead = $node;
$ws_accum =& $after_thead_ws;
} else {
// Oops, there's a second one! What
// should we do? Current behavior is to
// transmutate the first and last entries into
// tbody tags, and then put into content.
// Maybe a better idea is to *attach
// it* to the existing thead or tfoot?
// We don't do this, because Firefox
// doesn't float an extra tfoot to the
// bottom like it does for the first one.
$node->name = 'tbody';
$content[] = $node;
$ws_accum =& $content;
}
break;
case 'tfoot':
// see above for some aveats
$tbody_mode = true;
if ($tfoot === false) {
$tfoot = $node;
$ws_accum =& $after_tfoot_ws;
} else {
$node->name = 'tbody';
$content[] = $node;
$ws_accum =& $content;
}
break;
case 'colgroup':
case 'col':
$cols[] = $node;
$ws_accum =& $cols;
break;
case '#PCDATA':
// How is whitespace handled? We treat is as sticky to
// the *end* of the previous element. So all of the
// nonsense we have worked on is to keep things
// together.
if (!empty($node->is_whitespace)) {
$ws_accum[] = $node;
}
break;
}
}
if (empty($content)) {
return false;
}
$ret = $initial_ws;
if ($caption !== false) {
$ret[] = $caption;
$ret = array_merge($ret, $after_caption_ws);
}
if ($cols !== false) {
$ret = array_merge($ret, $cols);
}
if ($thead !== false) {
$ret[] = $thead;
$ret = array_merge($ret, $after_thead_ws);
}
if ($tfoot !== false) {
$ret[] = $tfoot;
$ret = array_merge($ret, $after_tfoot_ws);
}
if ($tbody_mode) {
// we have to shuffle tr into tbody
$current_tr_tbody = null;
foreach($content as $node) {
switch ($node->name) {
case 'tbody':
$current_tr_tbody = null;
$ret[] = $node;
break;
case 'tr':
if ($current_tr_tbody === null) {
$current_tr_tbody = new HTMLPurifier_Node_Element('tbody');
$ret[] = $current_tr_tbody;
}
$current_tr_tbody->children[] = $node;
break;
case '#PCDATA':
//assert($node->is_whitespace);
if ($current_tr_tbody === null) {
$ret[] = $node;
} else {
$current_tr_tbody->children[] = $node;
}
break;
}
}
} else {
$ret = array_merge($ret, $content);
}
return $ret;
}
}
// vim: et sw=4 sts=4

File diff suppressed because it is too large Load diff

View file

@ -1,176 +1,176 @@
<?php
/**
* Configuration definition, defines directives and their defaults.
*/
class HTMLPurifier_ConfigSchema
{
/**
* Defaults of the directives and namespaces.
* @type array
* @note This shares the exact same structure as HTMLPurifier_Config::$conf
*/
public $defaults = array();
/**
* The default property list. Do not edit this property list.
* @type array
*/
public $defaultPlist;
/**
* Definition of the directives.
* The structure of this is:
*
* array(
* 'Namespace' => array(
* 'Directive' => new stdClass(),
* )
* )
*
* The stdClass may have the following properties:
*
* - If isAlias isn't set:
* - type: Integer type of directive, see HTMLPurifier_VarParser for definitions
* - allow_null: If set, this directive allows null values
* - aliases: If set, an associative array of value aliases to real values
* - allowed: If set, a lookup array of allowed (string) values
* - If isAlias is set:
* - namespace: Namespace this directive aliases to
* - name: Directive name this directive aliases to
*
* In certain degenerate cases, stdClass will actually be an integer. In
* that case, the value is equivalent to an stdClass with the type
* property set to the integer. If the integer is negative, type is
* equal to the absolute value of integer, and allow_null is true.
*
* This class is friendly with HTMLPurifier_Config. If you need introspection
* about the schema, you're better of using the ConfigSchema_Interchange,
* which uses more memory but has much richer information.
* @type array
*/
public $info = array();
/**
* Application-wide singleton
* @type HTMLPurifier_ConfigSchema
*/
protected static $singleton;
public function __construct()
{
$this->defaultPlist = new HTMLPurifier_PropertyList();
}
/**
* Unserializes the default ConfigSchema.
* @return HTMLPurifier_ConfigSchema
*/
public static function makeFromSerial()
{
$contents = file_get_contents(HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema.ser');
$r = unserialize($contents);
if (!$r) {
$hash = sha1($contents);
trigger_error("Unserialization of configuration schema failed, sha1 of file was $hash", E_USER_ERROR);
}
return $r;
}
/**
* Retrieves an instance of the application-wide configuration definition.
* @param HTMLPurifier_ConfigSchema $prototype
* @return HTMLPurifier_ConfigSchema
*/
public static function instance($prototype = null)
{
if ($prototype !== null) {
HTMLPurifier_ConfigSchema::$singleton = $prototype;
} elseif (HTMLPurifier_ConfigSchema::$singleton === null || $prototype === true) {
HTMLPurifier_ConfigSchema::$singleton = HTMLPurifier_ConfigSchema::makeFromSerial();
}
return HTMLPurifier_ConfigSchema::$singleton;
}
/**
* Defines a directive for configuration
* @warning Will fail of directive's namespace is defined.
* @warning This method's signature is slightly different from the legacy
* define() static method! Beware!
* @param string $key Name of directive
* @param mixed $default Default value of directive
* @param string $type Allowed type of the directive. See
* HTMLPurifier_VarParser::$types for allowed values
* @param bool $allow_null Whether or not to allow null values
*/
public function add($key, $default, $type, $allow_null)
{
$obj = new stdClass();
$obj->type = is_int($type) ? $type : HTMLPurifier_VarParser::$types[$type];
if ($allow_null) {
$obj->allow_null = true;
}
$this->info[$key] = $obj;
$this->defaults[$key] = $default;
$this->defaultPlist->set($key, $default);
}
/**
* Defines a directive value alias.
*
* Directive value aliases are convenient for developers because it lets
* them set a directive to several values and get the same result.
* @param string $key Name of Directive
* @param array $aliases Hash of aliased values to the real alias
*/
public function addValueAliases($key, $aliases)
{
if (!isset($this->info[$key]->aliases)) {
$this->info[$key]->aliases = array();
}
foreach ($aliases as $alias => $real) {
$this->info[$key]->aliases[$alias] = $real;
}
}
/**
* Defines a set of allowed values for a directive.
* @warning This is slightly different from the corresponding static
* method definition.
* @param string $key Name of directive
* @param array $allowed Lookup array of allowed values
*/
public function addAllowedValues($key, $allowed)
{
$this->info[$key]->allowed = $allowed;
}
/**
* Defines a directive alias for backwards compatibility
* @param string $key Directive that will be aliased
* @param string $new_key Directive that the alias will be to
*/
public function addAlias($key, $new_key)
{
$obj = new stdClass;
$obj->key = $new_key;
$obj->isAlias = true;
$this->info[$key] = $obj;
}
/**
* Replaces any stdClass that only has the type property with type integer.
*/
public function postProcess()
{
foreach ($this->info as $key => $v) {
if (count((array) $v) == 1) {
$this->info[$key] = $v->type;
} elseif (count((array) $v) == 2 && isset($v->allow_null)) {
$this->info[$key] = -$v->type;
}
}
}
}
// vim: et sw=4 sts=4
<?php
/**
* Configuration definition, defines directives and their defaults.
*/
class HTMLPurifier_ConfigSchema
{
/**
* Defaults of the directives and namespaces.
* @type array
* @note This shares the exact same structure as HTMLPurifier_Config::$conf
*/
public $defaults = array();
/**
* The default property list. Do not edit this property list.
* @type array
*/
public $defaultPlist;
/**
* Definition of the directives.
* The structure of this is:
*
* array(
* 'Namespace' => array(
* 'Directive' => new stdClass(),
* )
* )
*
* The stdClass may have the following properties:
*
* - If isAlias isn't set:
* - type: Integer type of directive, see HTMLPurifier_VarParser for definitions
* - allow_null: If set, this directive allows null values
* - aliases: If set, an associative array of value aliases to real values
* - allowed: If set, a lookup array of allowed (string) values
* - If isAlias is set:
* - namespace: Namespace this directive aliases to
* - name: Directive name this directive aliases to
*
* In certain degenerate cases, stdClass will actually be an integer. In
* that case, the value is equivalent to an stdClass with the type
* property set to the integer. If the integer is negative, type is
* equal to the absolute value of integer, and allow_null is true.
*
* This class is friendly with HTMLPurifier_Config. If you need introspection
* about the schema, you're better of using the ConfigSchema_Interchange,
* which uses more memory but has much richer information.
* @type array
*/
public $info = array();
/**
* Application-wide singleton
* @type HTMLPurifier_ConfigSchema
*/
protected static $singleton;
public function __construct()
{
$this->defaultPlist = new HTMLPurifier_PropertyList();
}
/**
* Unserializes the default ConfigSchema.
* @return HTMLPurifier_ConfigSchema
*/
public static function makeFromSerial()
{
$contents = file_get_contents(HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema.ser');
$r = unserialize($contents);
if (!$r) {
$hash = sha1($contents);
trigger_error("Unserialization of configuration schema failed, sha1 of file was $hash", E_USER_ERROR);
}
return $r;
}
/**
* Retrieves an instance of the application-wide configuration definition.
* @param HTMLPurifier_ConfigSchema $prototype
* @return HTMLPurifier_ConfigSchema
*/
public static function instance($prototype = null)
{
if ($prototype !== null) {
HTMLPurifier_ConfigSchema::$singleton = $prototype;
} elseif (HTMLPurifier_ConfigSchema::$singleton === null || $prototype === true) {
HTMLPurifier_ConfigSchema::$singleton = HTMLPurifier_ConfigSchema::makeFromSerial();
}
return HTMLPurifier_ConfigSchema::$singleton;
}
/**
* Defines a directive for configuration
* @warning Will fail of directive's namespace is defined.
* @warning This method's signature is slightly different from the legacy
* define() static method! Beware!
* @param string $key Name of directive
* @param mixed $default Default value of directive
* @param string $type Allowed type of the directive. See
* HTMLPurifier_VarParser::$types for allowed values
* @param bool $allow_null Whether or not to allow null values
*/
public function add($key, $default, $type, $allow_null)
{
$obj = new stdClass();
$obj->type = is_int($type) ? $type : HTMLPurifier_VarParser::$types[$type];
if ($allow_null) {
$obj->allow_null = true;
}
$this->info[$key] = $obj;
$this->defaults[$key] = $default;
$this->defaultPlist->set($key, $default);
}
/**
* Defines a directive value alias.
*
* Directive value aliases are convenient for developers because it lets
* them set a directive to several values and get the same result.
* @param string $key Name of Directive
* @param array $aliases Hash of aliased values to the real alias
*/
public function addValueAliases($key, $aliases)
{
if (!isset($this->info[$key]->aliases)) {
$this->info[$key]->aliases = array();
}
foreach ($aliases as $alias => $real) {
$this->info[$key]->aliases[$alias] = $real;
}
}
/**
* Defines a set of allowed values for a directive.
* @warning This is slightly different from the corresponding static
* method definition.
* @param string $key Name of directive
* @param array $allowed Lookup array of allowed values
*/
public function addAllowedValues($key, $allowed)
{
$this->info[$key]->allowed = $allowed;
}
/**
* Defines a directive alias for backwards compatibility
* @param string $key Directive that will be aliased
* @param string $new_key Directive that the alias will be to
*/
public function addAlias($key, $new_key)
{
$obj = new stdClass;
$obj->key = $new_key;
$obj->isAlias = true;
$this->info[$key] = $obj;
}
/**
* Replaces any stdClass that only has the type property with type integer.
*/
public function postProcess()
{
foreach ($this->info as $key => $v) {
if (count((array) $v) == 1) {
$this->info[$key] = $v->type;
} elseif (count((array) $v) == 2 && isset($v->allow_null)) {
$this->info[$key] = -$v->type;
}
}
}
}
// vim: et sw=4 sts=4

View file

@ -1,48 +1,48 @@
<?php
/**
* Converts HTMLPurifier_ConfigSchema_Interchange to our runtime
* representation used to perform checks on user configuration.
*/
class HTMLPurifier_ConfigSchema_Builder_ConfigSchema
{
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @return HTMLPurifier_ConfigSchema
*/
public function build($interchange)
{
$schema = new HTMLPurifier_ConfigSchema();
foreach ($interchange->directives as $d) {
$schema->add(
$d->id->key,
$d->default,
$d->type,
$d->typeAllowsNull
);
if ($d->allowed !== null) {
$schema->addAllowedValues(
$d->id->key,
$d->allowed
);
}
foreach ($d->aliases as $alias) {
$schema->addAlias(
$alias->key,
$d->id->key
);
}
if ($d->valueAliases !== null) {
$schema->addValueAliases(
$d->id->key,
$d->valueAliases
);
}
}
$schema->postProcess();
return $schema;
}
}
// vim: et sw=4 sts=4
<?php
/**
* Converts HTMLPurifier_ConfigSchema_Interchange to our runtime
* representation used to perform checks on user configuration.
*/
class HTMLPurifier_ConfigSchema_Builder_ConfigSchema
{
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @return HTMLPurifier_ConfigSchema
*/
public function build($interchange)
{
$schema = new HTMLPurifier_ConfigSchema();
foreach ($interchange->directives as $d) {
$schema->add(
$d->id->key,
$d->default,
$d->type,
$d->typeAllowsNull
);
if ($d->allowed !== null) {
$schema->addAllowedValues(
$d->id->key,
$d->allowed
);
}
foreach ($d->aliases as $alias) {
$schema->addAlias(
$alias->key,
$d->id->key
);
}
if ($d->valueAliases !== null) {
$schema->addValueAliases(
$d->id->key,
$d->valueAliases
);
}
}
$schema->postProcess();
return $schema;
}
}
// vim: et sw=4 sts=4

View file

@ -1,144 +1,144 @@
<?php
/**
* Converts HTMLPurifier_ConfigSchema_Interchange to an XML format,
* which can be further processed to generate documentation.
*/
class HTMLPurifier_ConfigSchema_Builder_Xml extends XMLWriter
{
/**
* @type HTMLPurifier_ConfigSchema_Interchange
*/
protected $interchange;
/**
* @type string
*/
private $namespace;
/**
* @param string $html
*/
protected function writeHTMLDiv($html)
{
$this->startElement('div');
$purifier = HTMLPurifier::getInstance();
$html = $purifier->purify($html);
$this->writeAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
$this->writeRaw($html);
$this->endElement(); // div
}
/**
* @param mixed $var
* @return string
*/
protected function export($var)
{
if ($var === array()) {
return 'array()';
}
return var_export($var, true);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
*/
public function build($interchange)
{
// global access, only use as last resort
$this->interchange = $interchange;
$this->setIndent(true);
$this->startDocument('1.0', 'UTF-8');
$this->startElement('configdoc');
$this->writeElement('title', $interchange->name);
foreach ($interchange->directives as $directive) {
$this->buildDirective($directive);
}
if ($this->namespace) {
$this->endElement();
} // namespace
$this->endElement(); // configdoc
$this->flush();
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $directive
*/
public function buildDirective($directive)
{
// Kludge, although I suppose having a notion of a "root namespace"
// certainly makes things look nicer when documentation is built.
// Depends on things being sorted.
if (!$this->namespace || $this->namespace !== $directive->id->getRootNamespace()) {
if ($this->namespace) {
$this->endElement();
} // namespace
$this->namespace = $directive->id->getRootNamespace();
$this->startElement('namespace');
$this->writeAttribute('id', $this->namespace);
$this->writeElement('name', $this->namespace);
}
$this->startElement('directive');
$this->writeAttribute('id', $directive->id->toString());
$this->writeElement('name', $directive->id->getDirective());
$this->startElement('aliases');
foreach ($directive->aliases as $alias) {
$this->writeElement('alias', $alias->toString());
}
$this->endElement(); // aliases
$this->startElement('constraints');
if ($directive->version) {
$this->writeElement('version', $directive->version);
}
$this->startElement('type');
if ($directive->typeAllowsNull) {
$this->writeAttribute('allow-null', 'yes');
}
$this->text($directive->type);
$this->endElement(); // type
if ($directive->allowed) {
$this->startElement('allowed');
foreach ($directive->allowed as $value => $x) {
$this->writeElement('value', $value);
}
$this->endElement(); // allowed
}
$this->writeElement('default', $this->export($directive->default));
$this->writeAttribute('xml:space', 'preserve');
if ($directive->external) {
$this->startElement('external');
foreach ($directive->external as $project) {
$this->writeElement('project', $project);
}
$this->endElement();
}
$this->endElement(); // constraints
if ($directive->deprecatedVersion) {
$this->startElement('deprecated');
$this->writeElement('version', $directive->deprecatedVersion);
$this->writeElement('use', $directive->deprecatedUse->toString());
$this->endElement(); // deprecated
}
$this->startElement('description');
$this->writeHTMLDiv($directive->description);
$this->endElement(); // description
$this->endElement(); // directive
}
}
// vim: et sw=4 sts=4
<?php
/**
* Converts HTMLPurifier_ConfigSchema_Interchange to an XML format,
* which can be further processed to generate documentation.
*/
class HTMLPurifier_ConfigSchema_Builder_Xml extends XMLWriter
{
/**
* @type HTMLPurifier_ConfigSchema_Interchange
*/
protected $interchange;
/**
* @type string
*/
private $namespace;
/**
* @param string $html
*/
protected function writeHTMLDiv($html)
{
$this->startElement('div');
$purifier = HTMLPurifier::getInstance();
$html = $purifier->purify($html);
$this->writeAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
$this->writeRaw($html);
$this->endElement(); // div
}
/**
* @param mixed $var
* @return string
*/
protected function export($var)
{
if ($var === array()) {
return 'array()';
}
return var_export($var, true);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
*/
public function build($interchange)
{
// global access, only use as last resort
$this->interchange = $interchange;
$this->setIndent(true);
$this->startDocument('1.0', 'UTF-8');
$this->startElement('configdoc');
$this->writeElement('title', $interchange->name);
foreach ($interchange->directives as $directive) {
$this->buildDirective($directive);
}
if ($this->namespace) {
$this->endElement();
} // namespace
$this->endElement(); // configdoc
$this->flush();
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $directive
*/
public function buildDirective($directive)
{
// Kludge, although I suppose having a notion of a "root namespace"
// certainly makes things look nicer when documentation is built.
// Depends on things being sorted.
if (!$this->namespace || $this->namespace !== $directive->id->getRootNamespace()) {
if ($this->namespace) {
$this->endElement();
} // namespace
$this->namespace = $directive->id->getRootNamespace();
$this->startElement('namespace');
$this->writeAttribute('id', $this->namespace);
$this->writeElement('name', $this->namespace);
}
$this->startElement('directive');
$this->writeAttribute('id', $directive->id->toString());
$this->writeElement('name', $directive->id->getDirective());
$this->startElement('aliases');
foreach ($directive->aliases as $alias) {
$this->writeElement('alias', $alias->toString());
}
$this->endElement(); // aliases
$this->startElement('constraints');
if ($directive->version) {
$this->writeElement('version', $directive->version);
}
$this->startElement('type');
if ($directive->typeAllowsNull) {
$this->writeAttribute('allow-null', 'yes');
}
$this->text($directive->type);
$this->endElement(); // type
if ($directive->allowed) {
$this->startElement('allowed');
foreach ($directive->allowed as $value => $x) {
$this->writeElement('value', $value);
}
$this->endElement(); // allowed
}
$this->writeElement('default', $this->export($directive->default));
$this->writeAttribute('xml:space', 'preserve');
if ($directive->external) {
$this->startElement('external');
foreach ($directive->external as $project) {
$this->writeElement('project', $project);
}
$this->endElement();
}
$this->endElement(); // constraints
if ($directive->deprecatedVersion) {
$this->startElement('deprecated');
$this->writeElement('version', $directive->deprecatedVersion);
$this->writeElement('use', $directive->deprecatedUse->toString());
$this->endElement(); // deprecated
}
$this->startElement('description');
$this->writeHTMLDiv($directive->description);
$this->endElement(); // description
$this->endElement(); // directive
}
}
// vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
<?php
/**
* Exceptions related to configuration schema
*/
class HTMLPurifier_ConfigSchema_Exception extends HTMLPurifier_Exception
{
}
// vim: et sw=4 sts=4
<?php
/**
* Exceptions related to configuration schema
*/
class HTMLPurifier_ConfigSchema_Exception extends HTMLPurifier_Exception
{
}
// vim: et sw=4 sts=4

View file

@ -1,47 +1,47 @@
<?php
/**
* Generic schema interchange format that can be converted to a runtime
* representation (HTMLPurifier_ConfigSchema) or HTML documentation. Members
* are completely validated.
*/
class HTMLPurifier_ConfigSchema_Interchange
{
/**
* Name of the application this schema is describing.
* @type string
*/
public $name;
/**
* Array of Directive ID => array(directive info)
* @type HTMLPurifier_ConfigSchema_Interchange_Directive[]
*/
public $directives = array();
/**
* Adds a directive array to $directives
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $directive
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function addDirective($directive)
{
if (isset($this->directives[$i = $directive->id->toString()])) {
throw new HTMLPurifier_ConfigSchema_Exception("Cannot redefine directive '$i'");
}
$this->directives[$i] = $directive;
}
/**
* Convenience function to perform standard validation. Throws exception
* on failed validation.
*/
public function validate()
{
$validator = new HTMLPurifier_ConfigSchema_Validator();
return $validator->validate($this);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Generic schema interchange format that can be converted to a runtime
* representation (HTMLPurifier_ConfigSchema) or HTML documentation. Members
* are completely validated.
*/
class HTMLPurifier_ConfigSchema_Interchange
{
/**
* Name of the application this schema is describing.
* @type string
*/
public $name;
/**
* Array of Directive ID => array(directive info)
* @type HTMLPurifier_ConfigSchema_Interchange_Directive[]
*/
public $directives = array();
/**
* Adds a directive array to $directives
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $directive
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function addDirective($directive)
{
if (isset($this->directives[$i = $directive->id->toString()])) {
throw new HTMLPurifier_ConfigSchema_Exception("Cannot redefine directive '$i'");
}
$this->directives[$i] = $directive;
}
/**
* Convenience function to perform standard validation. Throws exception
* on failed validation.
*/
public function validate()
{
$validator = new HTMLPurifier_ConfigSchema_Validator();
return $validator->validate($this);
}
}
// vim: et sw=4 sts=4

View file

@ -1,89 +1,89 @@
<?php
/**
* Interchange component class describing configuration directives.
*/
class HTMLPurifier_ConfigSchema_Interchange_Directive
{
/**
* ID of directive.
* @type HTMLPurifier_ConfigSchema_Interchange_Id
*/
public $id;
/**
* Type, e.g. 'integer' or 'istring'.
* @type string
*/
public $type;
/**
* Default value, e.g. 3 or 'DefaultVal'.
* @type mixed
*/
public $default;
/**
* HTML description.
* @type string
*/
public $description;
/**
* Whether or not null is allowed as a value.
* @type bool
*/
public $typeAllowsNull = false;
/**
* Lookup table of allowed scalar values.
* e.g. array('allowed' => true).
* Null if all values are allowed.
* @type array
*/
public $allowed;
/**
* List of aliases for the directive.
* e.g. array(new HTMLPurifier_ConfigSchema_Interchange_Id('Ns', 'Dir'))).
* @type HTMLPurifier_ConfigSchema_Interchange_Id[]
*/
public $aliases = array();
/**
* Hash of value aliases, e.g. array('alt' => 'real'). Null if value
* aliasing is disabled (necessary for non-scalar types).
* @type array
*/
public $valueAliases;
/**
* Version of HTML Purifier the directive was introduced, e.g. '1.3.1'.
* Null if the directive has always existed.
* @type string
*/
public $version;
/**
* ID of directive that supercedes this old directive.
* Null if not deprecated.
* @type HTMLPurifier_ConfigSchema_Interchange_Id
*/
public $deprecatedUse;
/**
* Version of HTML Purifier this directive was deprecated. Null if not
* deprecated.
* @type string
*/
public $deprecatedVersion;
/**
* List of external projects this directive depends on, e.g. array('CSSTidy').
* @type array
*/
public $external = array();
}
// vim: et sw=4 sts=4
<?php
/**
* Interchange component class describing configuration directives.
*/
class HTMLPurifier_ConfigSchema_Interchange_Directive
{
/**
* ID of directive.
* @type HTMLPurifier_ConfigSchema_Interchange_Id
*/
public $id;
/**
* Type, e.g. 'integer' or 'istring'.
* @type string
*/
public $type;
/**
* Default value, e.g. 3 or 'DefaultVal'.
* @type mixed
*/
public $default;
/**
* HTML description.
* @type string
*/
public $description;
/**
* Whether or not null is allowed as a value.
* @type bool
*/
public $typeAllowsNull = false;
/**
* Lookup table of allowed scalar values.
* e.g. array('allowed' => true).
* Null if all values are allowed.
* @type array
*/
public $allowed;
/**
* List of aliases for the directive.
* e.g. array(new HTMLPurifier_ConfigSchema_Interchange_Id('Ns', 'Dir'))).
* @type HTMLPurifier_ConfigSchema_Interchange_Id[]
*/
public $aliases = array();
/**
* Hash of value aliases, e.g. array('alt' => 'real'). Null if value
* aliasing is disabled (necessary for non-scalar types).
* @type array
*/
public $valueAliases;
/**
* Version of HTML Purifier the directive was introduced, e.g. '1.3.1'.
* Null if the directive has always existed.
* @type string
*/
public $version;
/**
* ID of directive that supercedes this old directive.
* Null if not deprecated.
* @type HTMLPurifier_ConfigSchema_Interchange_Id
*/
public $deprecatedUse;
/**
* Version of HTML Purifier this directive was deprecated. Null if not
* deprecated.
* @type string
*/
public $deprecatedVersion;
/**
* List of external projects this directive depends on, e.g. array('CSSTidy').
* @type array
*/
public $external = array();
}
// vim: et sw=4 sts=4

View file

@ -1,58 +1,58 @@
<?php
/**
* Represents a directive ID in the interchange format.
*/
class HTMLPurifier_ConfigSchema_Interchange_Id
{
/**
* @type string
*/
public $key;
/**
* @param string $key
*/
public function __construct($key)
{
$this->key = $key;
}
/**
* @return string
* @warning This is NOT magic, to ensure that people don't abuse SPL and
* cause problems for PHP 5.0 support.
*/
public function toString()
{
return $this->key;
}
/**
* @return string
*/
public function getRootNamespace()
{
return substr($this->key, 0, strpos($this->key, "."));
}
/**
* @return string
*/
public function getDirective()
{
return substr($this->key, strpos($this->key, ".") + 1);
}
/**
* @param string $id
* @return HTMLPurifier_ConfigSchema_Interchange_Id
*/
public static function make($id)
{
return new HTMLPurifier_ConfigSchema_Interchange_Id($id);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Represents a directive ID in the interchange format.
*/
class HTMLPurifier_ConfigSchema_Interchange_Id
{
/**
* @type string
*/
public $key;
/**
* @param string $key
*/
public function __construct($key)
{
$this->key = $key;
}
/**
* @return string
* @warning This is NOT magic, to ensure that people don't abuse SPL and
* cause problems for PHP 5.0 support.
*/
public function toString()
{
return $this->key;
}
/**
* @return string
*/
public function getRootNamespace()
{
return substr($this->key, 0, strpos($this->key, "."));
}
/**
* @return string
*/
public function getDirective()
{
return substr($this->key, strpos($this->key, ".") + 1);
}
/**
* @param string $id
* @return HTMLPurifier_ConfigSchema_Interchange_Id
*/
public static function make($id)
{
return new HTMLPurifier_ConfigSchema_Interchange_Id($id);
}
}
// vim: et sw=4 sts=4

View file

@ -1,226 +1,226 @@
<?php
class HTMLPurifier_ConfigSchema_InterchangeBuilder
{
/**
* Used for processing DEFAULT, nothing else.
* @type HTMLPurifier_VarParser
*/
protected $varParser;
/**
* @param HTMLPurifier_VarParser $varParser
*/
public function __construct($varParser = null)
{
$this->varParser = $varParser ? $varParser : new HTMLPurifier_VarParser_Native();
}
/**
* @param string $dir
* @return HTMLPurifier_ConfigSchema_Interchange
*/
public static function buildFromDirectory($dir = null)
{
$builder = new HTMLPurifier_ConfigSchema_InterchangeBuilder();
$interchange = new HTMLPurifier_ConfigSchema_Interchange();
return $builder->buildDir($interchange, $dir);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param string $dir
* @return HTMLPurifier_ConfigSchema_Interchange
*/
public function buildDir($interchange, $dir = null)
{
if (!$dir) {
$dir = HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema';
}
if (file_exists($dir . '/info.ini')) {
$info = parse_ini_file($dir . '/info.ini');
$interchange->name = $info['name'];
}
$files = array();
$dh = opendir($dir);
while (false !== ($file = readdir($dh))) {
if (!$file || $file[0] == '.' || strrchr($file, '.') !== '.txt') {
continue;
}
$files[] = $file;
}
closedir($dh);
sort($files);
foreach ($files as $file) {
$this->buildFile($interchange, $dir . '/' . $file);
}
return $interchange;
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param string $file
*/
public function buildFile($interchange, $file)
{
$parser = new HTMLPurifier_StringHashParser();
$this->build(
$interchange,
new HTMLPurifier_StringHash($parser->parseFile($file))
);
}
/**
* Builds an interchange object based on a hash.
* @param HTMLPurifier_ConfigSchema_Interchange $interchange HTMLPurifier_ConfigSchema_Interchange object to build
* @param HTMLPurifier_StringHash $hash source data
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function build($interchange, $hash)
{
if (!$hash instanceof HTMLPurifier_StringHash) {
$hash = new HTMLPurifier_StringHash($hash);
}
if (!isset($hash['ID'])) {
throw new HTMLPurifier_ConfigSchema_Exception('Hash does not have any ID');
}
if (strpos($hash['ID'], '.') === false) {
if (count($hash) == 2 && isset($hash['DESCRIPTION'])) {
$hash->offsetGet('DESCRIPTION'); // prevent complaining
} else {
throw new HTMLPurifier_ConfigSchema_Exception('All directives must have a namespace');
}
} else {
$this->buildDirective($interchange, $hash);
}
$this->_findUnused($hash);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param HTMLPurifier_StringHash $hash
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function buildDirective($interchange, $hash)
{
$directive = new HTMLPurifier_ConfigSchema_Interchange_Directive();
// These are required elements:
$directive->id = $this->id($hash->offsetGet('ID'));
$id = $directive->id->toString(); // convenience
if (isset($hash['TYPE'])) {
$type = explode('/', $hash->offsetGet('TYPE'));
if (isset($type[1])) {
$directive->typeAllowsNull = true;
}
$directive->type = $type[0];
} else {
throw new HTMLPurifier_ConfigSchema_Exception("TYPE in directive hash '$id' not defined");
}
if (isset($hash['DEFAULT'])) {
try {
$directive->default = $this->varParser->parse(
$hash->offsetGet('DEFAULT'),
$directive->type,
$directive->typeAllowsNull
);
} catch (HTMLPurifier_VarParserException $e) {
throw new HTMLPurifier_ConfigSchema_Exception($e->getMessage() . " in DEFAULT in directive hash '$id'");
}
}
if (isset($hash['DESCRIPTION'])) {
$directive->description = $hash->offsetGet('DESCRIPTION');
}
if (isset($hash['ALLOWED'])) {
$directive->allowed = $this->lookup($this->evalArray($hash->offsetGet('ALLOWED')));
}
if (isset($hash['VALUE-ALIASES'])) {
$directive->valueAliases = $this->evalArray($hash->offsetGet('VALUE-ALIASES'));
}
if (isset($hash['ALIASES'])) {
$raw_aliases = trim($hash->offsetGet('ALIASES'));
$aliases = preg_split('/\s*,\s*/', $raw_aliases);
foreach ($aliases as $alias) {
$directive->aliases[] = $this->id($alias);
}
}
if (isset($hash['VERSION'])) {
$directive->version = $hash->offsetGet('VERSION');
}
if (isset($hash['DEPRECATED-USE'])) {
$directive->deprecatedUse = $this->id($hash->offsetGet('DEPRECATED-USE'));
}
if (isset($hash['DEPRECATED-VERSION'])) {
$directive->deprecatedVersion = $hash->offsetGet('DEPRECATED-VERSION');
}
if (isset($hash['EXTERNAL'])) {
$directive->external = preg_split('/\s*,\s*/', trim($hash->offsetGet('EXTERNAL')));
}
$interchange->addDirective($directive);
}
/**
* Evaluates an array PHP code string without array() wrapper
* @param string $contents
*/
protected function evalArray($contents)
{
return eval('return array(' . $contents . ');');
}
/**
* Converts an array list into a lookup array.
* @param array $array
* @return array
*/
protected function lookup($array)
{
$ret = array();
foreach ($array as $val) {
$ret[$val] = true;
}
return $ret;
}
/**
* Convenience function that creates an HTMLPurifier_ConfigSchema_Interchange_Id
* object based on a string Id.
* @param string $id
* @return HTMLPurifier_ConfigSchema_Interchange_Id
*/
protected function id($id)
{
return HTMLPurifier_ConfigSchema_Interchange_Id::make($id);
}
/**
* Triggers errors for any unused keys passed in the hash; such keys
* may indicate typos, missing values, etc.
* @param HTMLPurifier_StringHash $hash Hash to check.
*/
protected function _findUnused($hash)
{
$accessed = $hash->getAccessed();
foreach ($hash as $k => $v) {
if (!isset($accessed[$k])) {
trigger_error("String hash key '$k' not used by builder", E_USER_NOTICE);
}
}
}
}
// vim: et sw=4 sts=4
<?php
class HTMLPurifier_ConfigSchema_InterchangeBuilder
{
/**
* Used for processing DEFAULT, nothing else.
* @type HTMLPurifier_VarParser
*/
protected $varParser;
/**
* @param HTMLPurifier_VarParser $varParser
*/
public function __construct($varParser = null)
{
$this->varParser = $varParser ? $varParser : new HTMLPurifier_VarParser_Native();
}
/**
* @param string $dir
* @return HTMLPurifier_ConfigSchema_Interchange
*/
public static function buildFromDirectory($dir = null)
{
$builder = new HTMLPurifier_ConfigSchema_InterchangeBuilder();
$interchange = new HTMLPurifier_ConfigSchema_Interchange();
return $builder->buildDir($interchange, $dir);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param string $dir
* @return HTMLPurifier_ConfigSchema_Interchange
*/
public function buildDir($interchange, $dir = null)
{
if (!$dir) {
$dir = HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema';
}
if (file_exists($dir . '/info.ini')) {
$info = parse_ini_file($dir . '/info.ini');
$interchange->name = $info['name'];
}
$files = array();
$dh = opendir($dir);
while (false !== ($file = readdir($dh))) {
if (!$file || $file[0] == '.' || strrchr($file, '.') !== '.txt') {
continue;
}
$files[] = $file;
}
closedir($dh);
sort($files);
foreach ($files as $file) {
$this->buildFile($interchange, $dir . '/' . $file);
}
return $interchange;
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param string $file
*/
public function buildFile($interchange, $file)
{
$parser = new HTMLPurifier_StringHashParser();
$this->build(
$interchange,
new HTMLPurifier_StringHash($parser->parseFile($file))
);
}
/**
* Builds an interchange object based on a hash.
* @param HTMLPurifier_ConfigSchema_Interchange $interchange HTMLPurifier_ConfigSchema_Interchange object to build
* @param HTMLPurifier_StringHash $hash source data
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function build($interchange, $hash)
{
if (!$hash instanceof HTMLPurifier_StringHash) {
$hash = new HTMLPurifier_StringHash($hash);
}
if (!isset($hash['ID'])) {
throw new HTMLPurifier_ConfigSchema_Exception('Hash does not have any ID');
}
if (strpos($hash['ID'], '.') === false) {
if (count($hash) == 2 && isset($hash['DESCRIPTION'])) {
$hash->offsetGet('DESCRIPTION'); // prevent complaining
} else {
throw new HTMLPurifier_ConfigSchema_Exception('All directives must have a namespace');
}
} else {
$this->buildDirective($interchange, $hash);
}
$this->_findUnused($hash);
}
/**
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @param HTMLPurifier_StringHash $hash
* @throws HTMLPurifier_ConfigSchema_Exception
*/
public function buildDirective($interchange, $hash)
{
$directive = new HTMLPurifier_ConfigSchema_Interchange_Directive();
// These are required elements:
$directive->id = $this->id($hash->offsetGet('ID'));
$id = $directive->id->toString(); // convenience
if (isset($hash['TYPE'])) {
$type = explode('/', $hash->offsetGet('TYPE'));
if (isset($type[1])) {
$directive->typeAllowsNull = true;
}
$directive->type = $type[0];
} else {
throw new HTMLPurifier_ConfigSchema_Exception("TYPE in directive hash '$id' not defined");
}
if (isset($hash['DEFAULT'])) {
try {
$directive->default = $this->varParser->parse(
$hash->offsetGet('DEFAULT'),
$directive->type,
$directive->typeAllowsNull
);
} catch (HTMLPurifier_VarParserException $e) {
throw new HTMLPurifier_ConfigSchema_Exception($e->getMessage() . " in DEFAULT in directive hash '$id'");
}
}
if (isset($hash['DESCRIPTION'])) {
$directive->description = $hash->offsetGet('DESCRIPTION');
}
if (isset($hash['ALLOWED'])) {
$directive->allowed = $this->lookup($this->evalArray($hash->offsetGet('ALLOWED')));
}
if (isset($hash['VALUE-ALIASES'])) {
$directive->valueAliases = $this->evalArray($hash->offsetGet('VALUE-ALIASES'));
}
if (isset($hash['ALIASES'])) {
$raw_aliases = trim($hash->offsetGet('ALIASES'));
$aliases = preg_split('/\s*,\s*/', $raw_aliases);
foreach ($aliases as $alias) {
$directive->aliases[] = $this->id($alias);
}
}
if (isset($hash['VERSION'])) {
$directive->version = $hash->offsetGet('VERSION');
}
if (isset($hash['DEPRECATED-USE'])) {
$directive->deprecatedUse = $this->id($hash->offsetGet('DEPRECATED-USE'));
}
if (isset($hash['DEPRECATED-VERSION'])) {
$directive->deprecatedVersion = $hash->offsetGet('DEPRECATED-VERSION');
}
if (isset($hash['EXTERNAL'])) {
$directive->external = preg_split('/\s*,\s*/', trim($hash->offsetGet('EXTERNAL')));
}
$interchange->addDirective($directive);
}
/**
* Evaluates an array PHP code string without array() wrapper
* @param string $contents
*/
protected function evalArray($contents)
{
return eval('return array(' . $contents . ');');
}
/**
* Converts an array list into a lookup array.
* @param array $array
* @return array
*/
protected function lookup($array)
{
$ret = array();
foreach ($array as $val) {
$ret[$val] = true;
}
return $ret;
}
/**
* Convenience function that creates an HTMLPurifier_ConfigSchema_Interchange_Id
* object based on a string Id.
* @param string $id
* @return HTMLPurifier_ConfigSchema_Interchange_Id
*/
protected function id($id)
{
return HTMLPurifier_ConfigSchema_Interchange_Id::make($id);
}
/**
* Triggers errors for any unused keys passed in the hash; such keys
* may indicate typos, missing values, etc.
* @param HTMLPurifier_StringHash $hash Hash to check.
*/
protected function _findUnused($hash)
{
$accessed = $hash->getAccessed();
foreach ($hash as $k => $v) {
if (!isset($accessed[$k])) {
trigger_error("String hash key '$k' not used by builder", E_USER_NOTICE);
}
}
}
}
// vim: et sw=4 sts=4

View file

@ -1,248 +1,248 @@
<?php
/**
* Performs validations on HTMLPurifier_ConfigSchema_Interchange
*
* @note If you see '// handled by InterchangeBuilder', that means a
* design decision in that class would prevent this validation from
* ever being necessary. We have them anyway, however, for
* redundancy.
*/
class HTMLPurifier_ConfigSchema_Validator
{
/**
* @type HTMLPurifier_ConfigSchema_Interchange
*/
protected $interchange;
/**
* @type array
*/
protected $aliases;
/**
* Context-stack to provide easy to read error messages.
* @type array
*/
protected $context = array();
/**
* to test default's type.
* @type HTMLPurifier_VarParser
*/
protected $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_VarParser();
}
/**
* Validates a fully-formed interchange object.
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @return bool
*/
public function validate($interchange)
{
$this->interchange = $interchange;
$this->aliases = array();
// PHP is a bit lax with integer <=> string conversions in
// arrays, so we don't use the identical !== comparison
foreach ($interchange->directives as $i => $directive) {
$id = $directive->id->toString();
if ($i != $id) {
$this->error(false, "Integrity violation: key '$i' does not match internal id '$id'");
}
$this->validateDirective($directive);
}
return true;
}
/**
* Validates a HTMLPurifier_ConfigSchema_Interchange_Id object.
* @param HTMLPurifier_ConfigSchema_Interchange_Id $id
*/
public function validateId($id)
{
$id_string = $id->toString();
$this->context[] = "id '$id_string'";
if (!$id instanceof HTMLPurifier_ConfigSchema_Interchange_Id) {
// handled by InterchangeBuilder
$this->error(false, 'is not an instance of HTMLPurifier_ConfigSchema_Interchange_Id');
}
// keys are now unconstrained (we might want to narrow down to A-Za-z0-9.)
// we probably should check that it has at least one namespace
$this->with($id, 'key')
->assertNotEmpty()
->assertIsString(); // implicit assertIsString handled by InterchangeBuilder
array_pop($this->context);
}
/**
* Validates a HTMLPurifier_ConfigSchema_Interchange_Directive object.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirective($d)
{
$id = $d->id->toString();
$this->context[] = "directive '$id'";
$this->validateId($d->id);
$this->with($d, 'description')
->assertNotEmpty();
// BEGIN - handled by InterchangeBuilder
$this->with($d, 'type')
->assertNotEmpty();
$this->with($d, 'typeAllowsNull')
->assertIsBool();
try {
// This also tests validity of $d->type
$this->parser->parse($d->default, $d->type, $d->typeAllowsNull);
} catch (HTMLPurifier_VarParserException $e) {
$this->error('default', 'had error: ' . $e->getMessage());
}
// END - handled by InterchangeBuilder
if (!is_null($d->allowed) || !empty($d->valueAliases)) {
// allowed and valueAliases require that we be dealing with
// strings, so check for that early.
$d_int = HTMLPurifier_VarParser::$types[$d->type];
if (!isset(HTMLPurifier_VarParser::$stringTypes[$d_int])) {
$this->error('type', 'must be a string type when used with allowed or value aliases');
}
}
$this->validateDirectiveAllowed($d);
$this->validateDirectiveValueAliases($d);
$this->validateDirectiveAliases($d);
array_pop($this->context);
}
/**
* Extra validation if $allowed member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveAllowed($d)
{
if (is_null($d->allowed)) {
return;
}
$this->with($d, 'allowed')
->assertNotEmpty()
->assertIsLookup(); // handled by InterchangeBuilder
if (is_string($d->default) && !isset($d->allowed[$d->default])) {
$this->error('default', 'must be an allowed value');
}
$this->context[] = 'allowed';
foreach ($d->allowed as $val => $x) {
if (!is_string($val)) {
$this->error("value $val", 'must be a string');
}
}
array_pop($this->context);
}
/**
* Extra validation if $valueAliases member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveValueAliases($d)
{
if (is_null($d->valueAliases)) {
return;
}
$this->with($d, 'valueAliases')
->assertIsArray(); // handled by InterchangeBuilder
$this->context[] = 'valueAliases';
foreach ($d->valueAliases as $alias => $real) {
if (!is_string($alias)) {
$this->error("alias $alias", 'must be a string');
}
if (!is_string($real)) {
$this->error("alias target $real from alias '$alias'", 'must be a string');
}
if ($alias === $real) {
$this->error("alias '$alias'", "must not be an alias to itself");
}
}
if (!is_null($d->allowed)) {
foreach ($d->valueAliases as $alias => $real) {
if (isset($d->allowed[$alias])) {
$this->error("alias '$alias'", 'must not be an allowed value');
} elseif (!isset($d->allowed[$real])) {
$this->error("alias '$alias'", 'must be an alias to an allowed value');
}
}
}
array_pop($this->context);
}
/**
* Extra validation if $aliases member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveAliases($d)
{
$this->with($d, 'aliases')
->assertIsArray(); // handled by InterchangeBuilder
$this->context[] = 'aliases';
foreach ($d->aliases as $alias) {
$this->validateId($alias);
$s = $alias->toString();
if (isset($this->interchange->directives[$s])) {
$this->error("alias '$s'", 'collides with another directive');
}
if (isset($this->aliases[$s])) {
$other_directive = $this->aliases[$s];
$this->error("alias '$s'", "collides with alias for directive '$other_directive'");
}
$this->aliases[$s] = $d->id->toString();
}
array_pop($this->context);
}
// protected helper functions
/**
* Convenience function for generating HTMLPurifier_ConfigSchema_ValidatorAtom
* for validating simple member variables of objects.
* @param $obj
* @param $member
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
protected function with($obj, $member)
{
return new HTMLPurifier_ConfigSchema_ValidatorAtom($this->getFormattedContext(), $obj, $member);
}
/**
* Emits an error, providing helpful context.
* @throws HTMLPurifier_ConfigSchema_Exception
*/
protected function error($target, $msg)
{
if ($target !== false) {
$prefix = ucfirst($target) . ' in ' . $this->getFormattedContext();
} else {
$prefix = ucfirst($this->getFormattedContext());
}
throw new HTMLPurifier_ConfigSchema_Exception(trim($prefix . ' ' . $msg));
}
/**
* Returns a formatted context string.
* @return string
*/
protected function getFormattedContext()
{
return implode(' in ', array_reverse($this->context));
}
}
// vim: et sw=4 sts=4
<?php
/**
* Performs validations on HTMLPurifier_ConfigSchema_Interchange
*
* @note If you see '// handled by InterchangeBuilder', that means a
* design decision in that class would prevent this validation from
* ever being necessary. We have them anyway, however, for
* redundancy.
*/
class HTMLPurifier_ConfigSchema_Validator
{
/**
* @type HTMLPurifier_ConfigSchema_Interchange
*/
protected $interchange;
/**
* @type array
*/
protected $aliases;
/**
* Context-stack to provide easy to read error messages.
* @type array
*/
protected $context = array();
/**
* to test default's type.
* @type HTMLPurifier_VarParser
*/
protected $parser;
public function __construct()
{
$this->parser = new HTMLPurifier_VarParser();
}
/**
* Validates a fully-formed interchange object.
* @param HTMLPurifier_ConfigSchema_Interchange $interchange
* @return bool
*/
public function validate($interchange)
{
$this->interchange = $interchange;
$this->aliases = array();
// PHP is a bit lax with integer <=> string conversions in
// arrays, so we don't use the identical !== comparison
foreach ($interchange->directives as $i => $directive) {
$id = $directive->id->toString();
if ($i != $id) {
$this->error(false, "Integrity violation: key '$i' does not match internal id '$id'");
}
$this->validateDirective($directive);
}
return true;
}
/**
* Validates a HTMLPurifier_ConfigSchema_Interchange_Id object.
* @param HTMLPurifier_ConfigSchema_Interchange_Id $id
*/
public function validateId($id)
{
$id_string = $id->toString();
$this->context[] = "id '$id_string'";
if (!$id instanceof HTMLPurifier_ConfigSchema_Interchange_Id) {
// handled by InterchangeBuilder
$this->error(false, 'is not an instance of HTMLPurifier_ConfigSchema_Interchange_Id');
}
// keys are now unconstrained (we might want to narrow down to A-Za-z0-9.)
// we probably should check that it has at least one namespace
$this->with($id, 'key')
->assertNotEmpty()
->assertIsString(); // implicit assertIsString handled by InterchangeBuilder
array_pop($this->context);
}
/**
* Validates a HTMLPurifier_ConfigSchema_Interchange_Directive object.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirective($d)
{
$id = $d->id->toString();
$this->context[] = "directive '$id'";
$this->validateId($d->id);
$this->with($d, 'description')
->assertNotEmpty();
// BEGIN - handled by InterchangeBuilder
$this->with($d, 'type')
->assertNotEmpty();
$this->with($d, 'typeAllowsNull')
->assertIsBool();
try {
// This also tests validity of $d->type
$this->parser->parse($d->default, $d->type, $d->typeAllowsNull);
} catch (HTMLPurifier_VarParserException $e) {
$this->error('default', 'had error: ' . $e->getMessage());
}
// END - handled by InterchangeBuilder
if (!is_null($d->allowed) || !empty($d->valueAliases)) {
// allowed and valueAliases require that we be dealing with
// strings, so check for that early.
$d_int = HTMLPurifier_VarParser::$types[$d->type];
if (!isset(HTMLPurifier_VarParser::$stringTypes[$d_int])) {
$this->error('type', 'must be a string type when used with allowed or value aliases');
}
}
$this->validateDirectiveAllowed($d);
$this->validateDirectiveValueAliases($d);
$this->validateDirectiveAliases($d);
array_pop($this->context);
}
/**
* Extra validation if $allowed member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveAllowed($d)
{
if (is_null($d->allowed)) {
return;
}
$this->with($d, 'allowed')
->assertNotEmpty()
->assertIsLookup(); // handled by InterchangeBuilder
if (is_string($d->default) && !isset($d->allowed[$d->default])) {
$this->error('default', 'must be an allowed value');
}
$this->context[] = 'allowed';
foreach ($d->allowed as $val => $x) {
if (!is_string($val)) {
$this->error("value $val", 'must be a string');
}
}
array_pop($this->context);
}
/**
* Extra validation if $valueAliases member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveValueAliases($d)
{
if (is_null($d->valueAliases)) {
return;
}
$this->with($d, 'valueAliases')
->assertIsArray(); // handled by InterchangeBuilder
$this->context[] = 'valueAliases';
foreach ($d->valueAliases as $alias => $real) {
if (!is_string($alias)) {
$this->error("alias $alias", 'must be a string');
}
if (!is_string($real)) {
$this->error("alias target $real from alias '$alias'", 'must be a string');
}
if ($alias === $real) {
$this->error("alias '$alias'", "must not be an alias to itself");
}
}
if (!is_null($d->allowed)) {
foreach ($d->valueAliases as $alias => $real) {
if (isset($d->allowed[$alias])) {
$this->error("alias '$alias'", 'must not be an allowed value');
} elseif (!isset($d->allowed[$real])) {
$this->error("alias '$alias'", 'must be an alias to an allowed value');
}
}
}
array_pop($this->context);
}
/**
* Extra validation if $aliases member variable of
* HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
* @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
*/
public function validateDirectiveAliases($d)
{
$this->with($d, 'aliases')
->assertIsArray(); // handled by InterchangeBuilder
$this->context[] = 'aliases';
foreach ($d->aliases as $alias) {
$this->validateId($alias);
$s = $alias->toString();
if (isset($this->interchange->directives[$s])) {
$this->error("alias '$s'", 'collides with another directive');
}
if (isset($this->aliases[$s])) {
$other_directive = $this->aliases[$s];
$this->error("alias '$s'", "collides with alias for directive '$other_directive'");
}
$this->aliases[$s] = $d->id->toString();
}
array_pop($this->context);
}
// protected helper functions
/**
* Convenience function for generating HTMLPurifier_ConfigSchema_ValidatorAtom
* for validating simple member variables of objects.
* @param $obj
* @param $member
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
protected function with($obj, $member)
{
return new HTMLPurifier_ConfigSchema_ValidatorAtom($this->getFormattedContext(), $obj, $member);
}
/**
* Emits an error, providing helpful context.
* @throws HTMLPurifier_ConfigSchema_Exception
*/
protected function error($target, $msg)
{
if ($target !== false) {
$prefix = ucfirst($target) . ' in ' . $this->getFormattedContext();
} else {
$prefix = ucfirst($this->getFormattedContext());
}
throw new HTMLPurifier_ConfigSchema_Exception(trim($prefix . ' ' . $msg));
}
/**
* Returns a formatted context string.
* @return string
*/
protected function getFormattedContext()
{
return implode(' in ', array_reverse($this->context));
}
}
// vim: et sw=4 sts=4

View file

@ -1,130 +1,130 @@
<?php
/**
* Fluent interface for validating the contents of member variables.
* This should be immutable. See HTMLPurifier_ConfigSchema_Validator for
* use-cases. We name this an 'atom' because it's ONLY for validations that
* are independent and usually scalar.
*/
class HTMLPurifier_ConfigSchema_ValidatorAtom
{
/**
* @type string
*/
protected $context;
/**
* @type object
*/
protected $obj;
/**
* @type string
*/
protected $member;
/**
* @type mixed
*/
protected $contents;
public function __construct($context, $obj, $member)
{
$this->context = $context;
$this->obj = $obj;
$this->member = $member;
$this->contents =& $obj->$member;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsString()
{
if (!is_string($this->contents)) {
$this->error('must be a string');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsBool()
{
if (!is_bool($this->contents)) {
$this->error('must be a boolean');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsArray()
{
if (!is_array($this->contents)) {
$this->error('must be an array');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertNotNull()
{
if ($this->contents === null) {
$this->error('must not be null');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertAlnum()
{
$this->assertIsString();
if (!ctype_alnum($this->contents)) {
$this->error('must be alphanumeric');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertNotEmpty()
{
if (empty($this->contents)) {
$this->error('must not be empty');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsLookup()
{
$this->assertIsArray();
foreach ($this->contents as $v) {
if ($v !== true) {
$this->error('must be a lookup array');
}
}
return $this;
}
/**
* @param string $msg
* @throws HTMLPurifier_ConfigSchema_Exception
*/
protected function error($msg)
{
throw new HTMLPurifier_ConfigSchema_Exception(ucfirst($this->member) . ' in ' . $this->context . ' ' . $msg);
}
}
// vim: et sw=4 sts=4
<?php
/**
* Fluent interface for validating the contents of member variables.
* This should be immutable. See HTMLPurifier_ConfigSchema_Validator for
* use-cases. We name this an 'atom' because it's ONLY for validations that
* are independent and usually scalar.
*/
class HTMLPurifier_ConfigSchema_ValidatorAtom
{
/**
* @type string
*/
protected $context;
/**
* @type object
*/
protected $obj;
/**
* @type string
*/
protected $member;
/**
* @type mixed
*/
protected $contents;
public function __construct($context, $obj, $member)
{
$this->context = $context;
$this->obj = $obj;
$this->member = $member;
$this->contents =& $obj->$member;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsString()
{
if (!is_string($this->contents)) {
$this->error('must be a string');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsBool()
{
if (!is_bool($this->contents)) {
$this->error('must be a boolean');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsArray()
{
if (!is_array($this->contents)) {
$this->error('must be an array');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertNotNull()
{
if ($this->contents === null) {
$this->error('must not be null');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertAlnum()
{
$this->assertIsString();
if (!ctype_alnum($this->contents)) {
$this->error('must be alphanumeric');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertNotEmpty()
{
if (empty($this->contents)) {
$this->error('must not be empty');
}
return $this;
}
/**
* @return HTMLPurifier_ConfigSchema_ValidatorAtom
*/
public function assertIsLookup()
{
$this->assertIsArray();
foreach ($this->contents as $v) {
if ($v !== true) {
$this->error('must be a lookup array');
}
}
return $this;
}
/**
* @param string $msg
* @throws HTMLPurifier_ConfigSchema_Exception
*/
protected function error($msg)
{
throw new HTMLPurifier_ConfigSchema_Exception(ucfirst($this->member) . ' in ' . $this->context . ' ' . $msg);
}
}
// vim: et sw=4 sts=4

View file

@ -1,8 +1,8 @@
Attr.AllowedClasses
TYPE: lookup/null
VERSION: 4.0.0
DEFAULT: null
--DESCRIPTION--
List of allowed class values in the class attribute. By default, this is null,
which means all classes are allowed.
--# vim: et sw=4 sts=4
Attr.AllowedClasses
TYPE: lookup/null
VERSION: 4.0.0
DEFAULT: null
--DESCRIPTION--
List of allowed class values in the class attribute. By default, this is null,
which means all classes are allowed.
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
Attr.AllowedFrameTargets
TYPE: lookup
DEFAULT: array()
--DESCRIPTION--
Lookup table of all allowed link frame targets. Some commonly used link
targets include _blank, _self, _parent and _top. Values should be
lowercase, as validation will be done in a case-sensitive manner despite
W3C's recommendation. XHTML 1.0 Strict does not permit the target attribute
so this directive will have no effect in that doctype. XHTML 1.1 does not
enable the Target module by default, you will have to manually enable it
(see the module documentation for more details.)
--# vim: et sw=4 sts=4
Attr.AllowedFrameTargets
TYPE: lookup
DEFAULT: array()
--DESCRIPTION--
Lookup table of all allowed link frame targets. Some commonly used link
targets include _blank, _self, _parent and _top. Values should be
lowercase, as validation will be done in a case-sensitive manner despite
W3C's recommendation. XHTML 1.0 Strict does not permit the target attribute
so this directive will have no effect in that doctype. XHTML 1.1 does not
enable the Target module by default, you will have to manually enable it
(see the module documentation for more details.)
--# vim: et sw=4 sts=4

View file

@ -1,9 +1,9 @@
Attr.AllowedRel
TYPE: lookup
VERSION: 1.6.0
DEFAULT: array()
--DESCRIPTION--
List of allowed forward document relationships in the rel attribute. Common
values may be nofollow or print. By default, this is empty, meaning that no
document relationships are allowed.
--# vim: et sw=4 sts=4
Attr.AllowedRel
TYPE: lookup
VERSION: 1.6.0
DEFAULT: array()
--DESCRIPTION--
List of allowed forward document relationships in the rel attribute. Common
values may be nofollow or print. By default, this is empty, meaning that no
document relationships are allowed.
--# vim: et sw=4 sts=4

View file

@ -1,9 +1,9 @@
Attr.AllowedRev
TYPE: lookup
VERSION: 1.6.0
DEFAULT: array()
--DESCRIPTION--
List of allowed reverse document relationships in the rev attribute. This
attribute is a bit of an edge-case; if you don't know what it is for, stay
away.
--# vim: et sw=4 sts=4
Attr.AllowedRev
TYPE: lookup
VERSION: 1.6.0
DEFAULT: array()
--DESCRIPTION--
List of allowed reverse document relationships in the rev attribute. This
attribute is a bit of an edge-case; if you don't know what it is for, stay
away.
--# vim: et sw=4 sts=4

View file

@ -1,19 +1,19 @@
Attr.ClassUseCDATA
TYPE: bool/null
DEFAULT: null
VERSION: 4.0.0
--DESCRIPTION--
If null, class will auto-detect the doctype and, if matching XHTML 1.1 or
XHTML 2.0, will use the restrictive NMTOKENS specification of class. Otherwise,
it will use a relaxed CDATA definition. If true, the relaxed CDATA definition
is forced; if false, the NMTOKENS definition is forced. To get behavior
of HTML Purifier prior to 4.0.0, set this directive to false.
Some rational behind the auto-detection:
in previous versions of HTML Purifier, it was assumed that the form of
class was NMTOKENS, as specified by the XHTML Modularization (representing
XHTML 1.1 and XHTML 2.0). The DTDs for HTML 4.01 and XHTML 1.0, however
specify class as CDATA. HTML 5 effectively defines it as CDATA, but
with the additional constraint that each name should be unique (this is not
explicitly outlined in previous specifications).
--# vim: et sw=4 sts=4
Attr.ClassUseCDATA
TYPE: bool/null
DEFAULT: null
VERSION: 4.0.0
--DESCRIPTION--
If null, class will auto-detect the doctype and, if matching XHTML 1.1 or
XHTML 2.0, will use the restrictive NMTOKENS specification of class. Otherwise,
it will use a relaxed CDATA definition. If true, the relaxed CDATA definition
is forced; if false, the NMTOKENS definition is forced. To get behavior
of HTML Purifier prior to 4.0.0, set this directive to false.
Some rational behind the auto-detection:
in previous versions of HTML Purifier, it was assumed that the form of
class was NMTOKENS, as specified by the XHTML Modularization (representing
XHTML 1.1 and XHTML 2.0). The DTDs for HTML 4.01 and XHTML 1.0, however
specify class as CDATA. HTML 5 effectively defines it as CDATA, but
with the additional constraint that each name should be unique (this is not
explicitly outlined in previous specifications).
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
Attr.DefaultImageAlt
TYPE: string/null
DEFAULT: null
VERSION: 3.2.0
--DESCRIPTION--
This is the content of the alt tag of an image if the user had not
previously specified an alt attribute. This applies to all images without
a valid alt attribute, as opposed to %Attr.DefaultInvalidImageAlt, which
only applies to invalid images, and overrides in the case of an invalid image.
Default behavior with null is to use the basename of the src tag for the alt.
--# vim: et sw=4 sts=4
Attr.DefaultImageAlt
TYPE: string/null
DEFAULT: null
VERSION: 3.2.0
--DESCRIPTION--
This is the content of the alt tag of an image if the user had not
previously specified an alt attribute. This applies to all images without
a valid alt attribute, as opposed to %Attr.DefaultInvalidImageAlt, which
only applies to invalid images, and overrides in the case of an invalid image.
Default behavior with null is to use the basename of the src tag for the alt.
--# vim: et sw=4 sts=4

View file

@ -1,9 +1,9 @@
Attr.DefaultInvalidImage
TYPE: string
DEFAULT: ''
--DESCRIPTION--
This is the default image an img tag will be pointed to if it does not have
a valid src attribute. In future versions, we may allow the image tag to
be removed completely, but due to design issues, this is not possible right
now.
--# vim: et sw=4 sts=4
Attr.DefaultInvalidImage
TYPE: string
DEFAULT: ''
--DESCRIPTION--
This is the default image an img tag will be pointed to if it does not have
a valid src attribute. In future versions, we may allow the image tag to
be removed completely, but due to design issues, this is not possible right
now.
--# vim: et sw=4 sts=4

View file

@ -1,8 +1,8 @@
Attr.DefaultInvalidImageAlt
TYPE: string
DEFAULT: 'Invalid image'
--DESCRIPTION--
This is the content of the alt tag of an invalid image if the user had not
previously specified an alt attribute. It has no effect when the image is
valid but there was no alt attribute present.
--# vim: et sw=4 sts=4
Attr.DefaultInvalidImageAlt
TYPE: string
DEFAULT: 'Invalid image'
--DESCRIPTION--
This is the content of the alt tag of an invalid image if the user had not
previously specified an alt attribute. It has no effect when the image is
valid but there was no alt attribute present.
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
Attr.IDPrefix
TYPE: string
VERSION: 1.2.0
DEFAULT: ''
--DESCRIPTION--
String to prefix to IDs. If you have no idea what IDs your pages may use,
you may opt to simply add a prefix to all user-submitted ID attributes so
that they are still usable, but will not conflict with core page IDs.
Example: setting the directive to 'user_' will result in a user submitted
'foo' to become 'user_foo' Be sure to set %HTML.EnableAttrID to true
before using this.
--# vim: et sw=4 sts=4
Attr.IDPrefix
TYPE: string
VERSION: 1.2.0
DEFAULT: ''
--DESCRIPTION--
String to prefix to IDs. If you have no idea what IDs your pages may use,
you may opt to simply add a prefix to all user-submitted ID attributes so
that they are still usable, but will not conflict with core page IDs.
Example: setting the directive to 'user_' will result in a user submitted
'foo' to become 'user_foo' Be sure to set %HTML.EnableAttrID to true
before using this.
--# vim: et sw=4 sts=4

View file

@ -1,14 +1,14 @@
Attr.IDPrefixLocal
TYPE: string
VERSION: 1.2.0
DEFAULT: ''
--DESCRIPTION--
Temporary prefix for IDs used in conjunction with %Attr.IDPrefix. If you
need to allow multiple sets of user content on web page, you may need to
have a seperate prefix that changes with each iteration. This way,
seperately submitted user content displayed on the same page doesn't
clobber each other. Ideal values are unique identifiers for the content it
represents (i.e. the id of the row in the database). Be sure to add a
seperator (like an underscore) at the end. Warning: this directive will
not work unless %Attr.IDPrefix is set to a non-empty value!
--# vim: et sw=4 sts=4
Attr.IDPrefixLocal
TYPE: string
VERSION: 1.2.0
DEFAULT: ''
--DESCRIPTION--
Temporary prefix for IDs used in conjunction with %Attr.IDPrefix. If you
need to allow multiple sets of user content on web page, you may need to
have a seperate prefix that changes with each iteration. This way,
seperately submitted user content displayed on the same page doesn't
clobber each other. Ideal values are unique identifiers for the content it
represents (i.e. the id of the row in the database). Be sure to add a
seperator (like an underscore) at the end. Warning: this directive will
not work unless %Attr.IDPrefix is set to a non-empty value!
--# vim: et sw=4 sts=4

View file

@ -1,31 +1,31 @@
AutoFormat.AutoParagraph
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on auto-paragraphing, where double newlines are
converted in to paragraphs whenever possible. Auto-paragraphing:
</p>
<ul>
<li>Always applies to inline elements or text in the root node,</li>
<li>Applies to inline elements or text with double newlines in nodes
that allow paragraph tags,</li>
<li>Applies to double newlines in paragraph tags</li>
</ul>
<p>
<code>p</code> tags must be allowed for this directive to take effect.
We do not use <code>br</code> tags for paragraphing, as that is
semantically incorrect.
</p>
<p>
To prevent auto-paragraphing as a content-producer, refrain from using
double-newlines except to specify a new paragraph or in contexts where
it has special meaning (whitespace usually has no meaning except in
tags like <code>pre</code>, so this should not be difficult.) To prevent
the paragraphing of inline text adjacent to block elements, wrap them
in <code>div</code> tags (the behavior is slightly different outside of
the root node.)
</p>
--# vim: et sw=4 sts=4
AutoFormat.AutoParagraph
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on auto-paragraphing, where double newlines are
converted in to paragraphs whenever possible. Auto-paragraphing:
</p>
<ul>
<li>Always applies to inline elements or text in the root node,</li>
<li>Applies to inline elements or text with double newlines in nodes
that allow paragraph tags,</li>
<li>Applies to double newlines in paragraph tags</li>
</ul>
<p>
<code>p</code> tags must be allowed for this directive to take effect.
We do not use <code>br</code> tags for paragraphing, as that is
semantically incorrect.
</p>
<p>
To prevent auto-paragraphing as a content-producer, refrain from using
double-newlines except to specify a new paragraph or in contexts where
it has special meaning (whitespace usually has no meaning except in
tags like <code>pre</code>, so this should not be difficult.) To prevent
the paragraphing of inline text adjacent to block elements, wrap them
in <code>div</code> tags (the behavior is slightly different outside of
the root node.)
</p>
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
AutoFormat.Custom
TYPE: list
VERSION: 2.0.1
DEFAULT: array()
--DESCRIPTION--
<p>
This directive can be used to add custom auto-format injectors.
Specify an array of injector names (class name minus the prefix)
or concrete implementations. Injector class must exist.
</p>
--# vim: et sw=4 sts=4
AutoFormat.Custom
TYPE: list
VERSION: 2.0.1
DEFAULT: array()
--DESCRIPTION--
<p>
This directive can be used to add custom auto-format injectors.
Specify an array of injector names (class name minus the prefix)
or concrete implementations. Injector class must exist.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
AutoFormat.DisplayLinkURI
TYPE: bool
VERSION: 3.2.0
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on the in-text display of URIs in &lt;a&gt; tags, and disables
those links. For example, <a href="http://example.com">example</a> becomes
example (<a>http://example.com</a>).
</p>
--# vim: et sw=4 sts=4
AutoFormat.DisplayLinkURI
TYPE: bool
VERSION: 3.2.0
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on the in-text display of URIs in &lt;a&gt; tags, and disables
those links. For example, <a href="http://example.com">example</a> becomes
example (<a>http://example.com</a>).
</p>
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
AutoFormat.Linkify
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on linkification, auto-linking http, ftp and
https URLs. <code>a</code> tags with the <code>href</code> attribute
must be allowed.
</p>
--# vim: et sw=4 sts=4
AutoFormat.Linkify
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive turns on linkification, auto-linking http, ftp and
https URLs. <code>a</code> tags with the <code>href</code> attribute
must be allowed.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
AutoFormat.PurifierLinkify.DocURL
TYPE: string
VERSION: 2.0.1
DEFAULT: '#%s'
ALIASES: AutoFormatParam.PurifierLinkifyDocURL
--DESCRIPTION--
<p>
Location of configuration documentation to link to, let %s substitute
into the configuration's namespace and directive names sans the percent
sign.
</p>
--# vim: et sw=4 sts=4
AutoFormat.PurifierLinkify.DocURL
TYPE: string
VERSION: 2.0.1
DEFAULT: '#%s'
ALIASES: AutoFormatParam.PurifierLinkifyDocURL
--DESCRIPTION--
<p>
Location of configuration documentation to link to, let %s substitute
into the configuration's namespace and directive names sans the percent
sign.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
AutoFormat.PurifierLinkify
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
Internal auto-formatter that converts configuration directives in
syntax <a>%Namespace.Directive</a> to links. <code>a</code> tags
with the <code>href</code> attribute must be allowed.
</p>
--# vim: et sw=4 sts=4
AutoFormat.PurifierLinkify
TYPE: bool
VERSION: 2.0.1
DEFAULT: false
--DESCRIPTION--
<p>
Internal auto-formatter that converts configuration directives in
syntax <a>%Namespace.Directive</a> to links. <code>a</code> tags
with the <code>href</code> attribute must be allowed.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,14 +1,14 @@
AutoFormat.RemoveEmpty.Predicate
TYPE: hash
VERSION: 4.7.0
DEFAULT: array('colgroup' => array(), 'th' => array(), 'td' => array(), 'iframe' => array('src'))
--DESCRIPTION--
<p>
Given that an element has no contents, it will be removed by default, unless
this predicate dictates otherwise. The predicate can either be an associative
map from tag name to list of attributes that must be present for the element
to be considered preserved: thus, the default always preserves <code>colgroup</code>,
<code>th</code> and <code>td</code>, and also <code>iframe</code> if it
has a <code>src</code>.
</p>
--# vim: et sw=4 sts=4
AutoFormat.RemoveEmpty.Predicate
TYPE: hash
VERSION: 4.7.0
DEFAULT: array('colgroup' => array(), 'th' => array(), 'td' => array(), 'iframe' => array('src'))
--DESCRIPTION--
<p>
Given that an element has no contents, it will be removed by default, unless
this predicate dictates otherwise. The predicate can either be an associative
map from tag name to list of attributes that must be present for the element
to be considered preserved: thus, the default always preserves <code>colgroup</code>,
<code>th</code> and <code>td</code>, and also <code>iframe</code> if it
has a <code>src</code>.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions
TYPE: lookup
VERSION: 4.0.0
DEFAULT: array('td' => true, 'th' => true)
--DESCRIPTION--
<p>
When %AutoFormat.RemoveEmpty and %AutoFormat.RemoveEmpty.RemoveNbsp
are enabled, this directive defines what HTML elements should not be
removede if they have only a non-breaking space in them.
</p>
--# vim: et sw=4 sts=4
AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions
TYPE: lookup
VERSION: 4.0.0
DEFAULT: array('td' => true, 'th' => true)
--DESCRIPTION--
<p>
When %AutoFormat.RemoveEmpty and %AutoFormat.RemoveEmpty.RemoveNbsp
are enabled, this directive defines what HTML elements should not be
removede if they have only a non-breaking space in them.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,15 +1,15 @@
AutoFormat.RemoveEmpty.RemoveNbsp
TYPE: bool
VERSION: 4.0.0
DEFAULT: false
--DESCRIPTION--
<p>
When enabled, HTML Purifier will treat any elements that contain only
non-breaking spaces as well as regular whitespace as empty, and remove
them when %AutoFormat.RemoveEmpty is enabled.
</p>
<p>
See %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions for a list of elements
that don't have this behavior applied to them.
</p>
--# vim: et sw=4 sts=4
AutoFormat.RemoveEmpty.RemoveNbsp
TYPE: bool
VERSION: 4.0.0
DEFAULT: false
--DESCRIPTION--
<p>
When enabled, HTML Purifier will treat any elements that contain only
non-breaking spaces as well as regular whitespace as empty, and remove
them when %AutoFormat.RemoveEmpty is enabled.
</p>
<p>
See %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions for a list of elements
that don't have this behavior applied to them.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,46 +1,46 @@
AutoFormat.RemoveEmpty
TYPE: bool
VERSION: 3.2.0
DEFAULT: false
--DESCRIPTION--
<p>
When enabled, HTML Purifier will attempt to remove empty elements that
contribute no semantic information to the document. The following types
of nodes will be removed:
</p>
<ul><li>
Tags with no attributes and no content, and that are not empty
elements (remove <code>&lt;a&gt;&lt;/a&gt;</code> but not
<code>&lt;br /&gt;</code>), and
</li>
<li>
Tags with no content, except for:<ul>
<li>The <code>colgroup</code> element, or</li>
<li>
Elements with the <code>id</code> or <code>name</code> attribute,
when those attributes are permitted on those elements.
</li>
</ul></li>
</ul>
<p>
Please be very careful when using this functionality; while it may not
seem that empty elements contain useful information, they can alter the
layout of a document given appropriate styling. This directive is most
useful when you are processing machine-generated HTML, please avoid using
it on regular user HTML.
</p>
<p>
Elements that contain only whitespace will be treated as empty. Non-breaking
spaces, however, do not count as whitespace. See
%AutoFormat.RemoveEmpty.RemoveNbsp for alternate behavior.
</p>
<p>
This algorithm is not perfect; you may still notice some empty tags,
particularly if a node had elements, but those elements were later removed
because they were not permitted in that context, or tags that, after
being auto-closed by another tag, where empty. This is for safety reasons
to prevent clever code from breaking validation. The general rule of thumb:
if a tag looked empty on the way in, it will get removed; if HTML Purifier
made it empty, it will stay.
</p>
--# vim: et sw=4 sts=4
AutoFormat.RemoveEmpty
TYPE: bool
VERSION: 3.2.0
DEFAULT: false
--DESCRIPTION--
<p>
When enabled, HTML Purifier will attempt to remove empty elements that
contribute no semantic information to the document. The following types
of nodes will be removed:
</p>
<ul><li>
Tags with no attributes and no content, and that are not empty
elements (remove <code>&lt;a&gt;&lt;/a&gt;</code> but not
<code>&lt;br /&gt;</code>), and
</li>
<li>
Tags with no content, except for:<ul>
<li>The <code>colgroup</code> element, or</li>
<li>
Elements with the <code>id</code> or <code>name</code> attribute,
when those attributes are permitted on those elements.
</li>
</ul></li>
</ul>
<p>
Please be very careful when using this functionality; while it may not
seem that empty elements contain useful information, they can alter the
layout of a document given appropriate styling. This directive is most
useful when you are processing machine-generated HTML, please avoid using
it on regular user HTML.
</p>
<p>
Elements that contain only whitespace will be treated as empty. Non-breaking
spaces, however, do not count as whitespace. See
%AutoFormat.RemoveEmpty.RemoveNbsp for alternate behavior.
</p>
<p>
This algorithm is not perfect; you may still notice some empty tags,
particularly if a node had elements, but those elements were later removed
because they were not permitted in that context, or tags that, after
being auto-closed by another tag, where empty. This is for safety reasons
to prevent clever code from breaking validation. The general rule of thumb:
if a tag looked empty on the way in, it will get removed; if HTML Purifier
made it empty, it will stay.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
AutoFormat.RemoveSpansWithoutAttributes
TYPE: bool
VERSION: 4.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive causes <code>span</code> tags without any attributes
to be removed. It will also remove spans that had all attributes
removed during processing.
</p>
--# vim: et sw=4 sts=4
AutoFormat.RemoveSpansWithoutAttributes
TYPE: bool
VERSION: 4.0.1
DEFAULT: false
--DESCRIPTION--
<p>
This directive causes <code>span</code> tags without any attributes
to be removed. It will also remove spans that had all attributes
removed during processing.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
CSS.AllowDuplicates
TYPE: bool
DEFAULT: false
VERSION: 4.8.0
--DESCRIPTION--
<p>
By default, HTML Purifier removes duplicate CSS properties,
like <code>color:red; color:blue</code>. If this is set to
true, duplicate properties are allowed.
</p>
--# vim: et sw=4 sts=4
CSS.AllowDuplicates
TYPE: bool
DEFAULT: false
VERSION: 4.8.0
--DESCRIPTION--
<p>
By default, HTML Purifier removes duplicate CSS properties,
like <code>color:red; color:blue</code>. If this is set to
true, duplicate properties are allowed.
</p>
--# vim: et sw=4 sts=4

View file

@ -1,8 +1,8 @@
CSS.AllowImportant
TYPE: bool
DEFAULT: false
VERSION: 3.1.0
--DESCRIPTION--
This parameter determines whether or not !important cascade modifiers should
be allowed in user CSS. If false, !important will stripped.
--# vim: et sw=4 sts=4
CSS.AllowImportant
TYPE: bool
DEFAULT: false
VERSION: 3.1.0
--DESCRIPTION--
This parameter determines whether or not !important cascade modifiers should
be allowed in user CSS. If false, !important will stripped.
--# vim: et sw=4 sts=4

View file

@ -1,11 +1,11 @@
CSS.AllowTricky
TYPE: bool
DEFAULT: false
VERSION: 3.1.0
--DESCRIPTION--
This parameter determines whether or not to allow "tricky" CSS properties and
values. Tricky CSS properties/values can drastically modify page layout or
be used for deceptive practices but do not directly constitute a security risk.
For example, <code>display:none;</code> is considered a tricky property that
will only be allowed if this directive is set to true.
--# vim: et sw=4 sts=4
CSS.AllowTricky
TYPE: bool
DEFAULT: false
VERSION: 3.1.0
--DESCRIPTION--
This parameter determines whether or not to allow "tricky" CSS properties and
values. Tricky CSS properties/values can drastically modify page layout or
be used for deceptive practices but do not directly constitute a security risk.
For example, <code>display:none;</code> is considered a tricky property that
will only be allowed if this directive is set to true.
--# vim: et sw=4 sts=4

View file

@ -1,12 +1,12 @@
CSS.AllowedFonts
TYPE: lookup/null
VERSION: 4.3.0
DEFAULT: NULL
--DESCRIPTION--
<p>
Allows you to manually specify a set of allowed fonts. If
<code>NULL</code>, all fonts are allowed. This directive
affects generic names (serif, sans-serif, monospace, cursive,
fantasy) as well as specific font families.
</p>
--# vim: et sw=4 sts=4
CSS.AllowedFonts
TYPE: lookup/null
VERSION: 4.3.0
DEFAULT: NULL
--DESCRIPTION--
<p>
Allows you to manually specify a set of allowed fonts. If
<code>NULL</code>, all fonts are allowed. This directive
affects generic names (serif, sans-serif, monospace, cursive,
fantasy) as well as specific font families.
</p>
--# vim: et sw=4 sts=4

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