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Regexp for Oembed domain matching

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This commit is contained in:
Mikael Nordfeldth 2015-01-25 11:18:57 +01:00
parent 2b62077fc1
commit 0e0783ee8c
1 changed files with 8 additions and 5 deletions
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13
plugins/Oembed/OembedPlugin.php
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@ -5,8 +5,9 @@ if (!defined('GNUSOCIAL')) { exit(1); }
class OembedPlugin extends Plugin class OembedPlugin extends Plugin
{ {
// settings which can be set in config.php with addPlugin('Oembed', array('param'=>'value', ...)); // settings which can be set in config.php with addPlugin('Oembed', array('param'=>'value', ...));
// WARNING, these are _regexps_ (slashes added later). Always escape your dots and end your strings
public $domain_whitelist = array( // hostname => service provider public $domain_whitelist = array( // hostname => service provider
'i.ytimg.com' => 'YouTube', '^i\d*\.ytimg\.com$' => 'YouTube',
); );
public $append_whitelist = array(); // fill this array as domain_whitelist to add more trusted sources public $append_whitelist = array(); // fill this array as domain_whitelist to add more trusted sources
public $check_whitelist = true; // security/abuse precaution public $check_whitelist = true; // security/abuse precaution
@ -233,7 +234,7 @@ class OembedPlugin extends Plugin
} }
/** /**
* @return boolean false on no check made, true on success * @return boolean false on no check made, provider name on success
* @throws ServerException if check is made but fails * @throws ServerException if check is made but fails
*/ */
protected function checkWhitelist($url) protected function checkWhitelist($url)
@ -243,11 +244,13 @@ class OembedPlugin extends Plugin
} }
$host = parse_url($url, PHP_URL_HOST); $host = parse_url($url, PHP_URL_HOST);
if (!in_array($host, array_keys($this->domain_whitelist))) { foreach ($this->domain_whitelist as $regex => $provider) {
throw new ServerException(sprintf(_('Domain not in remote thumbnail source whitelist: %s'), $host)); if (preg_match("/$regex/", $host)) {
return $provider; // we trust this source, return provider name
}
} }
return true; // we trust this source throw new ServerException(sprintf(_('Domain not in remote thumbnail source whitelist: %s'), $host));
} }
protected function storeRemoteFileThumbnail(File_thumbnail $thumbnail) protected function storeRemoteFileThumbnail(File_thumbnail $thumbnail)