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Alex Trofimov
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Sep 5, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| <?php | ||
|
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| class BxDolHTMLPurifierFilterAddBxLinksClass extends HTMLPurifier_Filter | ||
| { | ||
| public $name = 'AddBxLinksClass'; | ||
| protected $class = BX_DOL_LINK_CLASS; | ||
|
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| public function preFilter($sHtml, $config, $context) | ||
| { | ||
| if (false === strstr($sHtml, '<a ')) | ||
| return $sHtml; | ||
|
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| $sId = 'bx-links-' . md5(microtime()); | ||
| $dom = new DOMDocument(); | ||
| @$dom->loadHTML('<?xml encoding="UTF-8"><div id="' . $sId . '">' . $sHtml . '</div>'); | ||
| $xpath = new DOMXpath($dom); | ||
|
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| $oLinks = $xpath->evaluate('//a'); | ||
| for ($i = 0; $i < $oLinks->length; $i++) { | ||
| $oLink = $oLinks->item($i); | ||
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| $sClasses = $oLink->getAttribute('class'); | ||
| if (!$sClasses || false === strpos($sClasses, $this->class)) | ||
| $sClasses = ($sClasses ? $sClasses . ' ' : '') . $this->class; | ||
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| $oLink->removeAttribute('class'); | ||
| $oLink->setAttribute("class", $sClasses); | ||
| } | ||
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| if (false === ($s = $dom->saveXML($dom->getElementById($sId)))) // in case of error return original string | ||
| return $sHtml; | ||
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| return mb_substr($s, 52, -6); // strip added tags | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| <?php | ||
|
|
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| class BxDolHTMLPurifierFilterLocalIframe extends HTMLPurifier_Filter | ||
| { | ||
| public $name = 'LocalIframe'; | ||
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| public function preFilter($sHtml, $config, $context) | ||
| { | ||
| if (strstr($sHtml, '<iframe')) { | ||
| $sHtml = str_ireplace("</iframe>", "", $sHtml); | ||
| if (preg_match_all("/<iframe(.*?)>/si", $sHtml, $aResult)) { | ||
| foreach ($aResult[1] as $key => $sItem) { | ||
| preg_match('/width="([0-9]+)"/', $sItem, $width); | ||
| $iWidth = $width[1]; | ||
| preg_match('/height="([0-9]+)"/', $sItem, $height); | ||
| $iHeight = $height[1]; | ||
| $sDolUrl = preg_quote(BX_DOL_URL_ROOT); | ||
| $sIframeUrl = ''; | ||
| if (preg_match("#({$sDolUrl}[a-zA-Z0-9_=\-\?\&\/]+)#", $sItem, $aMatches)) | ||
| $sIframeUrl = $aMatches[1]; | ||
| if (preg_match("#src=\"(((?!//)(?![a-z]+://)(?![a-z]+://))[a-zA-Z0-9_=\-\?\&\/]+)#", $sItem, $aMatches)) | ||
| $sIframeUrl = $aMatches[1]; | ||
| if ($sIframeUrl) | ||
| $sHtml = str_replace($aResult[0][$key], '<img class="LocalIframe" width="' . $iWidth . '" height="' . $iHeight . '" src="' . $sIframeUrl . '">', $sHtml); | ||
| } | ||
| } | ||
| } | ||
| return $sHtml; | ||
| } | ||
|
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| public function postFilter($sHtml, $config, $context) | ||
| { | ||
| $sPostRegex = '#<img class="LocalIframe" ([^>]+)>#'; | ||
| $sHtml = preg_replace_callback($sPostRegex, array($this, 'postFilterCallback'), $sHtml); | ||
| return $sHtml; | ||
| } | ||
|
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| protected function postFilterCallback($aMatches) | ||
| { | ||
| return '<iframe frameborder="0" allowfullscreen ' . $aMatches[1] . '></iframe>'; | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| <?php | ||
|
|
||
| class BxDolHTMLPurifierFilterYouTube extends HTMLPurifier_Filter | ||
| { | ||
|
|
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| /** | ||
| * @type string | ||
| */ | ||
| public $name = 'YouTube'; | ||
|
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||
| /** | ||
| * @param string $html | ||
| * @param HTMLPurifier_Config $config | ||
| * @param HTMLPurifier_Context $context | ||
| * @return string | ||
| */ | ||
| public function preFilter($html, $config, $context) | ||
| { | ||
| $pre_regex = '#<object[^>]+>.+?' . | ||
| '(?:http:)?//www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s'; | ||
| $pre_replace = '<span class="youtube-embed">\1</span>'; | ||
| return preg_replace($pre_regex, $pre_replace, $html); | ||
| } | ||
|
|
||
| /** | ||
| * @param string $html | ||
| * @param HTMLPurifier_Config $config | ||
| * @param HTMLPurifier_Context $context | ||
| * @return string | ||
| */ | ||
| public function postFilter($html, $config, $context) | ||
| { | ||
| $post_regex = '#<span class="youtube-embed">((?:v|cp)/[A-Za-z0-9\-_=]+)</span>#'; | ||
| return preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html); | ||
| } | ||
|
|
||
| /** | ||
| * @param $url | ||
| * @return string | ||
| */ | ||
| protected function armorUrl($url) | ||
| { | ||
| return str_replace('--', '--', $url); | ||
| } | ||
|
|
||
| /** | ||
| * @param array $matches | ||
| * @return string | ||
| */ | ||
| protected function postFilterCallback($matches) | ||
| { | ||
| $url = $this->armorUrl($matches[1]); | ||
| return '<object width="425" height="350" type="application/x-shockwave-flash" ' . | ||
| 'data="//www.youtube.com/' . $url . '">' . | ||
| '<param name="movie" value="//www.youtube.com/' . $url . '"></param>' . | ||
| '<!--[if IE]>' . | ||
| '<embed src="//www.youtube.com/' . $url . '"' . | ||
| 'type="application/x-shockwave-flash"' . | ||
| 'wmode="transparent" width="425" height="350" />' . | ||
| '<![endif]-->' . | ||
| '</object>'; | ||
| } | ||
| } | ||
|
|
||
| // vim: et sw=4 sts=4 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| <?php | ||
|
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| class BxDolHTMLPurifierFilterYoutubeIframe extends HTMLPurifier_Filter | ||
| { | ||
| public $name = 'YouTubeIframe'; | ||
|
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| public function preFilter($html, $config, $context) | ||
| { | ||
| if (strstr($html, '<iframe') && (strstr($html, 'youtube.com') || strstr($html, 'youtu.be') || strstr($html, 'youtube-nocookie.com'))) { | ||
| $html = str_ireplace("</iframe>", "", $html); | ||
| if (preg_match_all("/<iframe(.*?)>/si", $html, $result)) { | ||
| foreach ($result[1] as $key => $item) { | ||
| preg_match('/width="([0-9]+)"/', $item, $width); | ||
| $width = $width[1]; | ||
| preg_match('/height="([0-9]+)"/', $item, $height); | ||
| $height = $height[1]; | ||
| if (preg_match('/((\/\/www\.youtube\.com\/embed\/)|(\/\/www\.youtube-nocookie\.com\/embed\/)|(\/\/www.youtube.com\/v\/))([a-zA-Z0-9_-]+)/', $item, $id)) { | ||
| $id = $id[5]; | ||
| $sProto = 0 == strncmp('https', BX_DOL_URL_ROOT, 5) ? 'https' : 'http'; | ||
| $html = str_replace($result[0][$key], '<img class="YouTubeIframe" width="' . $width . '" height="' . $height . '" src="' . $sProto . '://www.youtube-nocookie.com/embed/' . $id . '?rel=0">', $html); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return $html; | ||
| } | ||
|
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| public function postFilter($html, $config, $context) | ||
| { | ||
| $post_regex = '#<img class="YouTubeIframe" ([^>]+)>#'; | ||
| $html = preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html); | ||
| return $html; | ||
| } | ||
|
|
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| protected function postFilterCallback($matches) | ||
| { | ||
| return '<iframe frameborder="0" allowfullscreen ' . $matches[1] . '></iframe>'; | ||
| } | ||
| } | ||
|
|
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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