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Added shlink integration
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parent
ebe275d509
commit
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10 changed files with 215 additions and 2 deletions
140
lib/ShlinkProxy.php
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140
lib/ShlinkProxy.php
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<?php declare(strict_types=1);
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/**
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* PrivateBin
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*
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* a zero-knowledge paste bin
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*
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* @link https://github.com/PrivateBin/PrivateBin
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* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
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* @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
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*/
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namespace PrivateBin;
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use Exception;
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/**
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* ShlinkProxy
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*
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* Forwards a URL for shortening to shlink and stores the result.
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*/
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class ShlinkProxy
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{
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/**
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* error message
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*
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* @access private
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* @var string
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*/
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private $_error = '';
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/**
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* shortened URL
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*
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* @access private
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* @var string
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*/
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private $_url = '';
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/**
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* constructor
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*
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* initializes and runs PrivateBin
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*
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* @access public
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* @param string $link
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*/
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public function __construct(Configuration $conf, $link)
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{
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if (!str_starts_with($link, $conf->getKey('basepath') . '?')) {
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$this->_error = 'Trying to shorten a URL that isn\'t pointing at our instance.';
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return;
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}
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$shlink_api_url = $conf->getKey('apiurl', 'shlink');
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$shlink_api_key = $conf->getKey('apikey', 'shlink');
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if (empty($shlink_api_url) || empty($shlink_api_key)) {
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$this->_error = 'Error calling Shlink. Probably a configuration issue, like wrong or missing "apiurl" or "apikey".';
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return;
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}
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$data = file_get_contents(
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$shlink_api_url, false, stream_context_create(
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array(
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'http' => array(
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'method' => 'POST',
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'header' => "Content-Type: application/json\r\n" .
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"X-Api-Key: " . $shlink_api_key . "\r\n",
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'content' => json_encode(
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array(
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'longUrl' => $link,
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)
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),
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),
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)
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)
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);
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if ($data === false) {
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$http_response_header = $http_response_header ?? [];
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$statusCode = '';
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if (!empty($http_response_header) && preg_match('/HTTP\/\d+\.\d+\s+(\d+)/', $http_response_header[0], $matches)) {
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$statusCode = $matches[1];
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}
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$this->_error = 'Error calling shlink. HTTP request failed for URL ' . $shlink_api_url . '. Status code: ' . $statusCode;
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error_log('Error calling shlink: HTTP request failed for URL ' . $shlink_api_url . '. Status code: ' . $statusCode);
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return;
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}
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try {
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$data = Json::decode($data);
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} catch (Exception $e) {
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$this->_error = 'Error calling shlink. Probably a configuration issue, like wrong or missing "apiurl" or "apikey".';
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error_log('Error calling shlink: ' . $e->getMessage());
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return;
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}
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if (
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!is_null($data) &&
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// array_key_exists('statusCode', $data) &&
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// $data['statusCode'] == 200 &&
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array_key_exists('shortUrl', $data)
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) {
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$this->_url = $data['shortUrl'];
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} else {
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$this->_error = 'Error parsing shlink response.';
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}
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}
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/**
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* Returns the (untranslated) error message
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*
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* @access public
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* @return string
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*/
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public function getError()
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{
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return $this->_error;
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}
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/**
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* Returns the shortened URL
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*
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* @access public
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* @return string
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*/
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public function getUrl()
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{
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return $this->_url;
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}
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/**
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* Returns true if any error has occurred
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*
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* @access public
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* @return bool
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*/
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public function isError()
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{
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return !empty($this->_error);
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}
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}
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