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refactor, internalised serving of cover/thumbnail images to reduce feed size (shorter links)

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frankdelange 2014-12-13 18:40:47 +01:00
parent 7d068ec45f
commit 3794606760
7 changed files with 263 additions and 163 deletions
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124
files_opds/lib/meta.php Normal file
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<?php
/**
* ownCloud - Files_Opds App
*
* @author Frank de Lange
* @copyright 2014 Frank de Lange
*
* This file is licensed under the Affero General Public License version 3 or
* later.
*/
namespace OCA\Files_Opds;
/**
* Meta (data) class for OPDS
*/
class Meta
{
/**
* @brief create a new metadata array for a given id
*
* @param int $id fileid
* @return array of metadata
*/
public static function create($id) {
$meta = array();
/* start with empty values, except for id. This way, files only get
* scanned once, even if they don't contain valid metadate.
*/
$meta['id'] = $id;
$meta['updated'] = date("Y-m-d\TH:i:sP");
$meta['date'] = '';
$meta['author'] = '';
$meta['title'] = '';
$meta['language'] = '';
$meta['publisher'] = '';
$meta['isbn'] = '';
$meta['copyright'] = '';
$meta['description'] = '';
$meta['subjects'] = '';
return $meta;
}
/**
* @brief load metadata from database
*
* @return array or false
*/
protected static function load($id) {
$sql = 'SELECT * FROM `*PREFIX*opds_metadata` WHERE id = ?';
$args = array($id);
$query = \OCP\DB::prepare($sql);
$result = $query->execute($args);
return ($row = $result->fetchRow()) ? $row : false;
}
/**
* @brief write metadata to database
*
* @param array $meta metadata
* @return OC_DB_StatementWrapper
*/
protected static function save($meta) {
$sql = "INSERT INTO *PREFIX*opds_metadata (`id`, `updated`, `date`, `author`, `title`, `language`, `publisher`, `isbn`, `copyright`, `description`, `subjects`) VALUES (?,?,?,?,?,?,?,?,?,?,?)";
$args = array(
$meta['id'],
$meta['updated'],
$meta['date'],
$meta['author'],
$meta['title'],
$meta['language'],
$meta['publisher'],
$meta['isbn'],
$meta['copyright'],
$meta['description'],
$meta['subjects']
);
$query = \OCP\DB::prepare($sql);
return $query->execute($args);
}
/**
* @brief get metadata for fileid
*
* Long function, to be split later
*
* @param int $id fileid
* @return array of metadata
*/
public static function get($id) {
if ($meta = self::load($id)) {
return $meta;
} else {
$meta = self::create($id);
$path = \OC\Files\Filesystem::getLocalFile(\OC\Files\Filesystem::getPath($id));
switch (strtolower(substr(strrchr($path, "."), 1))) {
case 'epub':
$epub = new Epub($path);
$meta['author'] = json_encode($epub->Authors());
$meta['title'] = $epub->Title();
$meta['date'] = $epub->Date();
$meta['publisher'] = $epub->Publisher();
$meta['copyright'] = $epub->Copyright();
$meta['language'] = $epub->Language();
$meta['description'] = strip_tags($epub->Description());
$meta['isbn'] = $epub->ISBN();
$meta['subjects'] = $epub->Subjects();
break;
default:
// set title to filename minus extension
$info = pathinfo($path);
$meta['title'] = basename($path,'.'.$info['extension']);
break;
}
self::save($meta);
return $meta;
}
}
}