X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=inline;f=src%2FContent%2FOEmbed.php;h=116120ab552474c4dfe3e8132ea995bb76716293;hb=58c6ef2bc0fdf7ca7210e98fd21a1b08c08ed409;hp=814fd68b6ffd4010f32253a05a70ab5311f0f046;hpb=da60893590a302bf94dfd86f5586f26509160d34;p=friendica.git
diff --git a/src/Content/OEmbed.php b/src/Content/OEmbed.php
index 814fd68b6f..116120ab55 100644
--- a/src/Content/OEmbed.php
+++ b/src/Content/OEmbed.php
@@ -1,404 +1,413 @@
-
- */
-class OEmbed
-{
- public static function replaceCallback($matches)
- {
- $embedurl = $matches[1];
- $j = self::fetchURL($embedurl);
- $s = self::formatObject($j);
-
- return $s;
- }
-
- /**
- * @brief Get data from an URL to embed its content.
- *
- * @param string $embedurl The URL from which the data should be fetched.
- * @param bool $no_rich_type If set to true rich type content won't be fetched.
- *
- * @return bool|object Returns object with embed content or false if no embedable
- * content exists
- */
- public static function fetchURL($embedurl, $no_rich_type = false)
- {
- $embedurl = trim($embedurl, "'");
- $embedurl = trim($embedurl, '"');
-
- $a = get_app();
-
- $condition = ['url' => normalise_link($embedurl)];
- $r = dba::selectOne('oembed', ['content'], $condition);
- if (DBM::is_result($r)) {
- $txt = $r["content"];
- } else {
- $txt = Cache::get($a->videowidth . $embedurl);
- }
- // These media files should now be caught in bbcode.php
- // left here as a fallback in case this is called from another source
-
- $noexts = array("mp3", "mp4", "ogg", "ogv", "oga", "ogm", "webm");
- $ext = pathinfo(strtolower($embedurl), PATHINFO_EXTENSION);
-
-
- if (is_null($txt)) {
- $txt = "";
-
- if (!in_array($ext, $noexts)) {
- // try oembed autodiscovery
- $redirects = 0;
- $html_text = fetch_url($embedurl, false, $redirects, 15, "text/*");
- if ($html_text) {
- $dom = @DOMDocument::loadHTML($html_text);
- if ($dom) {
- $xpath = new DOMXPath($dom);
- $entries = $xpath->query("//link[@type='application/json+oembed']");
- foreach ($entries as $e) {
- $href = $e->getAttributeNode("href")->nodeValue;
- $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
- break;
- }
- $entries = $xpath->query("//link[@type='text/json+oembed']");
- foreach ($entries as $e) {
- $href = $e->getAttributeNode("href")->nodeValue;
- $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
- break;
- }
- }
- }
- }
-
- $txt = trim($txt);
-
- if (!$txt || $txt[0] != "{") {
- $txt = '{"type":"error"}';
- } else { //save in cache
- $j = json_decode($txt);
- if ($j->type != "error") {
- dba::insert('oembed', array('url' => normalise_link($embedurl),
- 'content' => $txt, 'created' => datetime_convert()), true);
- }
-
- Cache::set($a->videowidth . $embedurl, $txt, CACHE_DAY);
- }
- }
-
- $j = json_decode($txt);
-
- if (!is_object($j)) {
- return false;
- }
-
- // Always embed the SSL version
- if (isset($j->html)) {
- $j->html = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"), array("https://www.youtube.com/", "https://player.vimeo.com/"), $j->html);
- }
-
- $j->embedurl = $embedurl;
-
- // If fetching information doesn't work, then improve via internal functions
- if (($j->type == "error") || ($no_rich_type && ($j->type == "rich"))) {
- $data = ParseUrl::getSiteinfoCached($embedurl, true, false);
- $j->type = $data["type"];
-
- if ($j->type == "photo") {
- $j->url = $data["url"];
- //$j->width = $data["images"][0]["width"];
- //$j->height = $data["images"][0]["height"];
- }
-
- if (isset($data["title"])) {
- $j->title = $data["title"];
- }
-
- if (isset($data["text"])) {
- $j->description = $data["text"];
- }
-
- if (is_array($data["images"])) {
- $j->thumbnail_url = $data["images"][0]["src"];
- $j->thumbnail_width = $data["images"][0]["width"];
- $j->thumbnail_height = $data["images"][0]["height"];
- }
- }
-
- call_hooks('oembed_fetch_url', $embedurl, $j);
-
- return $j;
- }
-
- public static function formatObject($j)
- {
- $embedurl = $j->embedurl;
- $jhtml = $j->html;
- $ret = '
';
- switch ($j->type) {
- case "video":
- if (isset($j->thumbnail_url)) {
- $tw = (isset($j->thumbnail_width) && intval($j->thumbnail_width)) ? $j->thumbnail_width : 200;
- $th = (isset($j->thumbnail_height) && intval($j->thumbnail_height)) ? $j->thumbnail_height : 180;
- // make sure we don't attempt divide by zero, fallback is a 1:1 ratio
- $tr = (($th) ? $tw / $th : 1);
-
- $th = 120;
- $tw = $th * $tr;
- $tpl = get_markup_template('oembed_video.tpl');
- $ret .= replace_macros($tpl, array(
- '$baseurl' => System::baseUrl(),
- '$embedurl' => $embedurl,
- '$escapedhtml' => base64_encode($jhtml),
- '$tw' => $tw,
- '$th' => $th,
- '$turl' => $j->thumbnail_url,
- ));
- } else {
- $ret = $jhtml;
- }
- break;
- case "photo":
- $ret .= '
';
- break;
- case "link":
- break;
- case "rich":
- if (self::isAllowedURL($embedurl)) {
- $ret .= proxy_parse_html($jhtml);
- }
- break;
- }
-
- $ret .= '
';
- // add link to source if not present in "rich" type
- if ($j->type != 'rich' || !strpos($j->html, $embedurl)) {
- $ret .= '';
- if (isset($j->title)) {
- if (isset($j->provider_name)) {
- $ret .= $j->provider_name . ": ";
- }
-
- $embedlink = (isset($j->title)) ? $j->title : $embedurl;
- $ret .= '' . $embedlink . '';
- if (isset($j->author_name)) {
- $ret .= ' (' . $j->author_name . ')';
- }
- } elseif (isset($j->provider_name) || isset($j->author_name)) {
- $embedlink = "";
- if (isset($j->provider_name)) {
- $embedlink .= $j->provider_name;
- }
-
- if (isset($j->author_name)) {
- if ($embedlink != "") {
- $embedlink .= ": ";
- }
-
- $embedlink .= $j->author_name;
- }
- if (trim($embedlink) == "") {
- $embedlink = $embedurl;
- }
-
- $ret .= '' . $embedlink . '';
- }
- $ret .= "
";
- } elseif (!strpos($j->html, $embedurl)) {
- // add for html2bbcode conversion
- $ret .= '' . $j->title . '';
- }
-
- $ret = str_replace("\n", "", $ret);
- return mb_convert_encoding($ret, 'HTML-ENTITIES', mb_detect_encoding($ret));
- }
-
- public static function BBCode2HTML($text)
- {
- $stopoembed = Config::get("system", "no_oembed");
- if ($stopoembed == true) {
- return preg_replace("/\[embed\](.+?)\[\/embed\]/is", "" . t('Embedding disabled') . " : $1", $text);
- }
- return preg_replace_callback("/\[embed\](.+?)\[\/embed\]/is", ['self', 'replaceCallback'], $text);
- }
-
- /**
- * Find ....
- * and replace it with [embed]url[/embed]
- */
- public static function HTML2BBCode($text)
- {
- // start parser only if 'oembed' is in text
- if (strpos($text, "oembed")) {
-
- // convert non ascii chars to html entities
- $html_text = mb_convert_encoding($text, 'HTML-ENTITIES', mb_detect_encoding($text));
-
- // If it doesn't parse at all, just return the text.
- $dom = @DOMDocument::loadHTML($html_text);
- if (!$dom) {
- return $text;
- }
- $xpath = new DOMXPath($dom);
-
- $xattr = self::buildXPath("class", "oembed");
- $entries = $xpath->query("//div[$xattr]");
-
- $xattr = "@rel='oembed'"; //oe_build_xpath("rel","oembed");
- foreach ($entries as $e) {
- $href = $xpath->evaluate("a[$xattr]/@href", $e)->item(0)->nodeValue;
- if (!is_null($href)) {
- $e->parentNode->replaceChild(new DOMText("[embed]" . $href . "[/embed]"), $e);
- }
- }
- return self::getInnerHTML($dom->getElementsByTagName("body")->item(0));
- } else {
- return $text;
- }
- }
-
- /**
- * Determines if rich content OEmbed is allowed for the provided URL
- *
- * @brief Determines if rich content OEmbed is allowed for the provided URL
- * @param string $url
- * @return boolean
- */
- public static function isAllowedURL($url)
- {
- if (!Config::get('system', 'no_oembed_rich_content')) {
- return true;
- }
-
- $domain = parse_url($url, PHP_URL_HOST);
- if (!x($domain)) {
- return false;
- }
-
- $str_allowed = Config::get('system', 'allowed_oembed', '');
- if (!x($str_allowed)) {
- return false;
- }
-
- $allowed = explode(',', $str_allowed);
-
- return allowed_domain($domain, $allowed);
- }
-
- public static function getHTML($url, $title = null)
- {
- // Always embed the SSL version
- $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
- array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
-
- $o = OEmbed::fetchURL($url);
-
- if (!is_object($o) || $o->type == 'error') {
- throw new Exception('OEmbed failed for URL: ' . $url);
- }
-
- if (x($title)) {
- $o->title = $title;
- }
-
- $html = OEmbed::formatObject($o);
-
- return $html;
- }
-
- /**
- * @brief Generates the iframe HTML for an oembed attachment.
- *
- * Width and height are given by the remote, and are regularly too small for
- * the generated iframe.
- *
- * The width is entirely discarded for the actual width of the post, while fixed
- * height is used as a starting point before the inevitable resizing.
- *
- * Since the iframe is automatically resized on load, there are no need for ugly
- * and impractical scrollbars.
- *
- * @todo This function is currently unused until someone⢠adds support for a separate OEmbed domain
- *
- * @param string $src Original remote URL to embed
- * @param string $width
- * @param string $height
- * @return string formatted HTML
- *
- * @see oembed_format_object()
- */
- private static function iframe($src, $width, $height)
- {
- $a = get_app();
-
- if (!$height || strstr($height, '%')) {
- $height = '200';
- }
- $width = '100%';
-
- $src = System::baseUrl() . '/oembed/' . base64url_encode($src);
- return '';
- }
-
- /**
- * Generates an XPath query to select elements whose provided attribute contains
- * the provided value in a space-separated list.
- *
- * @brief Generates attribute search XPath string
- *
- * @param string $attr Name of the attribute to seach
- * @param string $value Value to search in a space-separated list
- * @return string
- */
- private static function buildXPath($attr, $value)
- {
- // https://www.westhoffswelt.de/blog/2009/6/9/select-html-elements-with-more-than-one-css-class-using-xpath
- return "contains(normalize-space(@$attr), ' $value ') or substring(normalize-space(@$attr), 1, string-length('$value') + 1) = '$value ' or substring(normalize-space(@$attr), string-length(@$attr) - string-length('$value')) = ' $value' or @$attr = '$value'";
- }
-
- /**
- * Returns the inner XML string of a provided DOMNode
- *
- * @brief Returns the inner XML string of a provided DOMNode
- *
- * @param DOMNode $node
- * @return string
- */
- private static function getInnerHTML(DOMNode $node)
- {
- $innerHTML = '';
- $children = $node->childNodes;
- foreach ($children as $child) {
- $innerHTML .= $child->ownerDocument->saveXML($child);
- }
- return $innerHTML;
- }
-
-}
+
+ */
+class OEmbed
+{
+ public static function replaceCallback($matches)
+ {
+ $embedurl = $matches[1];
+ $j = self::fetchURL($embedurl, !self::isAllowedURL($embedurl));
+ $s = self::formatObject($j);
+
+ return $s;
+ }
+
+ /**
+ * @brief Get data from an URL to embed its content.
+ *
+ * @param string $embedurl The URL from which the data should be fetched.
+ * @param bool $no_rich_type If set to true rich type content won't be fetched.
+ *
+ * @return \Friendica\Object\OEmbed
+ */
+ public static function fetchURL($embedurl, $no_rich_type = false)
+ {
+ $embedurl = trim($embedurl, '\'"');
+
+ $a = get_app();
+
+ $cache_key = 'oembed:' . $a->videowidth . ':' . $embedurl;
+
+ $condition = ['url' => normalise_link($embedurl), 'maxwidth' => $a->videowidth];
+ $oembed_record = DBA::selectFirst('oembed', ['content'], $condition);
+ if (DBA::isResult($oembed_record)) {
+ $json_string = $oembed_record['content'];
+ } else {
+ $json_string = Cache::get($cache_key);
+ }
+
+ // These media files should now be caught in bbcode.php
+ // left here as a fallback in case this is called from another source
+ $noexts = ['mp3', 'mp4', 'ogg', 'ogv', 'oga', 'ogm', 'webm'];
+ $ext = pathinfo(strtolower($embedurl), PATHINFO_EXTENSION);
+
+ $oembed = new \Friendica\Object\OEmbed($embedurl);
+
+ if ($json_string) {
+ $oembed->parseJSON($json_string);
+ } else {
+ $json_string = '';
+
+ if (!in_array($ext, $noexts)) {
+ // try oembed autodiscovery
+ $redirects = 0;
+ $html_text = Network::fetchUrl($embedurl, false, $redirects, 15, 'text/*');
+ if ($html_text) {
+ $dom = @DOMDocument::loadHTML($html_text);
+ if ($dom) {
+ $xpath = new DOMXPath($dom);
+ $entries = $xpath->query("//link[@type='application/json+oembed']");
+ foreach ($entries as $e) {
+ $href = $e->getAttributeNode('href')->nodeValue;
+ $json_string = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
+ break;
+ }
+
+ $entries = $xpath->query("//link[@type='text/json+oembed']");
+ foreach ($entries as $e) {
+ $href = $e->getAttributeNode('href')->nodeValue;
+ $json_string = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
+ break;
+ }
+ }
+ }
+ }
+
+ $json_string = trim($json_string);
+
+ if (!$json_string || $json_string[0] != '{') {
+ $json_string = '{"type":"error"}';
+ }
+
+ $oembed->parseJSON($json_string);
+
+ if (!empty($oembed->type) && $oembed->type != 'error') {
+ DBA::insert('oembed', [
+ 'url' => normalise_link($embedurl),
+ 'maxwidth' => $a->videowidth,
+ 'content' => $json_string,
+ 'created' => DateTimeFormat::utcNow()
+ ], true);
+ $cache_ttl = CACHE_DAY;
+ } else {
+ $cache_ttl = CACHE_FIVE_MINUTES;
+ }
+
+ Cache::set($cache_key, $json_string, $cache_ttl);
+ }
+
+ if ($oembed->type == 'error') {
+ return $oembed;
+ }
+
+ // Always embed the SSL version
+ $oembed->html = str_replace(['http://www.youtube.com/', 'http://player.vimeo.com/'], ['https://www.youtube.com/', 'https://player.vimeo.com/'], $oembed->html);
+
+ // If fetching information doesn't work, then improve via internal functions
+ if ($no_rich_type && ($oembed->type == 'rich')) {
+ $data = ParseUrl::getSiteinfoCached($embedurl, true, false);
+ $oembed->type = $data['type'];
+
+ if ($oembed->type == 'photo') {
+ $oembed->url = $data['url'];
+ }
+
+ if (isset($data['title'])) {
+ $oembed->title = $data['title'];
+ }
+
+ if (isset($data['text'])) {
+ $oembed->description = $data['text'];
+ }
+
+ if (!empty($data['images'])) {
+ $oembed->thumbnail_url = $data['images'][0]['src'];
+ $oembed->thumbnail_width = $data['images'][0]['width'];
+ $oembed->thumbnail_height = $data['images'][0]['height'];
+ }
+ }
+
+ Addon::callHooks('oembed_fetch_url', $embedurl, $oembed);
+
+ return $oembed;
+ }
+
+ private static function formatObject(\Friendica\Object\OEmbed $oembed)
+ {
+ $ret = '';
+
+ switch ($oembed->type) {
+ case "video":
+ if ($oembed->thumbnail_url) {
+ $tw = (isset($oembed->thumbnail_width) && intval($oembed->thumbnail_width)) ? $oembed->thumbnail_width : 200;
+ $th = (isset($oembed->thumbnail_height) && intval($oembed->thumbnail_height)) ? $oembed->thumbnail_height : 180;
+ // make sure we don't attempt divide by zero, fallback is a 1:1 ratio
+ $tr = (($th) ? $tw / $th : 1);
+
+ $th = 120;
+ $tw = $th * $tr;
+ $tpl = get_markup_template('oembed_video.tpl');
+ $ret .= replace_macros($tpl, [
+ '$baseurl' => System::baseUrl(),
+ '$embedurl' => $oembed->embed_url,
+ '$escapedhtml' => base64_encode($oembed->html),
+ '$tw' => $tw,
+ '$th' => $th,
+ '$turl' => $oembed->thumbnail_url,
+ ]);
+ } else {
+ $ret = $oembed->html;
+ }
+ break;
+
+ case "photo":
+ $ret .= '
';
+ break;
+
+ case "link":
+ break;
+
+ case "rich":
+ $ret .= ProxyUtils::proxifyHtml($oembed->html);
+ break;
+ }
+
+ // add link to source if not present in "rich" type
+ if ($oembed->type != 'rich' || !strpos($oembed->html, $oembed->embed_url)) {
+ $ret .= '
';
+ if (!empty($oembed->title)) {
+ if (!empty($oembed->provider_name)) {
+ $ret .= $oembed->provider_name . ": ";
+ }
+
+ $ret .= '' . $oembed->title . '';
+ if (!empty($oembed->author_name)) {
+ $ret .= ' (' . $oembed->author_name . ')';
+ }
+ } elseif (!empty($oembed->provider_name) || !empty($oembed->author_name)) {
+ $embedlink = "";
+ if (!empty($oembed->provider_name)) {
+ $embedlink .= $oembed->provider_name;
+ }
+
+ if (!empty($oembed->author_name)) {
+ if ($embedlink != "") {
+ $embedlink .= ": ";
+ }
+
+ $embedlink .= $oembed->author_name;
+ }
+ if (trim($embedlink) == "") {
+ $embedlink = $oembed->embed_url;
+ }
+
+ $ret .= '' . $embedlink . '';
+ } else {
+ $ret .= '' . $oembed->embed_url . '';
+ }
+ $ret .= "
";
+ } elseif (!strpos($oembed->html, $oembed->embed_url)) {
+ // add
for html2bbcode conversion
+ $ret .= '' . $oembed->title . '';
+ }
+
+ $ret .= '
';
+
+ $ret = str_replace("\n", "", $ret);
+ return mb_convert_encoding($ret, 'HTML-ENTITIES', mb_detect_encoding($ret));
+ }
+
+ public static function BBCode2HTML($text)
+ {
+ $stopoembed = Config::get("system", "no_oembed");
+ if ($stopoembed == true) {
+ return preg_replace("/\[embed\](.+?)\[\/embed\]/is", "" . L10n::t('Embedding disabled') . " : $1", $text);
+ }
+ return preg_replace_callback("/\[embed\](.+?)\[\/embed\]/is", ['self', 'replaceCallback'], $text);
+ }
+
+ /**
+ * Find ....
+ * and replace it with [embed]url[/embed]
+ */
+ public static function HTML2BBCode($text)
+ {
+ // start parser only if 'oembed' is in text
+ if (strpos($text, "oembed")) {
+
+ // convert non ascii chars to html entities
+ $html_text = mb_convert_encoding($text, 'HTML-ENTITIES', mb_detect_encoding($text));
+
+ // If it doesn't parse at all, just return the text.
+ $dom = @DOMDocument::loadHTML($html_text);
+ if (!$dom) {
+ return $text;
+ }
+ $xpath = new DOMXPath($dom);
+
+ $xattr = self::buildXPath("class", "oembed");
+ $entries = $xpath->query("//div[$xattr]");
+
+ $xattr = "@rel='oembed'"; //oe_build_xpath("rel","oembed");
+ foreach ($entries as $e) {
+ $href = $xpath->evaluate("a[$xattr]/@href", $e)->item(0)->nodeValue;
+ if (!is_null($href)) {
+ $e->parentNode->replaceChild(new DOMText("[embed]" . $href . "[/embed]"), $e);
+ }
+ }
+ return self::getInnerHTML($dom->getElementsByTagName("body")->item(0));
+ } else {
+ return $text;
+ }
+ }
+
+ /**
+ * Determines if rich content OEmbed is allowed for the provided URL
+ *
+ * @brief Determines if rich content OEmbed is allowed for the provided URL
+ * @param string $url
+ * @return boolean
+ */
+ public static function isAllowedURL($url)
+ {
+ if (!Config::get('system', 'no_oembed_rich_content')) {
+ return true;
+ }
+
+ $domain = parse_url($url, PHP_URL_HOST);
+ if (!x($domain)) {
+ return false;
+ }
+
+ $str_allowed = Config::get('system', 'allowed_oembed', '');
+ if (!x($str_allowed)) {
+ return false;
+ }
+
+ $allowed = explode(',', $str_allowed);
+
+ return Network::isDomainAllowed($domain, $allowed);
+ }
+
+ public static function getHTML($url, $title = null)
+ {
+ // Always embed the SSL version
+ $url = str_replace(["http://www.youtube.com/", "http://player.vimeo.com/"],
+ ["https://www.youtube.com/", "https://player.vimeo.com/"], $url);
+
+ $o = self::fetchURL($url, !self::isAllowedURL($url));
+
+ if (!is_object($o) || property_exists($o, 'type') && $o->type == 'error') {
+ throw new Exception('OEmbed failed for URL: ' . $url);
+ }
+
+ if (x($title)) {
+ $o->title = $title;
+ }
+
+ $html = self::formatObject($o);
+
+ return $html;
+ }
+
+ /**
+ * @brief Generates the iframe HTML for an oembed attachment.
+ *
+ * Width and height are given by the remote, and are regularly too small for
+ * the generated iframe.
+ *
+ * The width is entirely discarded for the actual width of the post, while fixed
+ * height is used as a starting point before the inevitable resizing.
+ *
+ * Since the iframe is automatically resized on load, there are no need for ugly
+ * and impractical scrollbars.
+ *
+ * @todo This function is currently unused until someone⢠adds support for a separate OEmbed domain
+ *
+ * @param string $src Original remote URL to embed
+ * @param string $width
+ * @param string $height
+ * @return string formatted HTML
+ *
+ * @see oembed_format_object()
+ */
+ private static function iframe($src, $width, $height)
+ {
+ $a = get_app();
+
+ if (!$height || strstr($height, '%')) {
+ $height = '200';
+ }
+ $width = '100%';
+
+ $src = System::baseUrl() . '/oembed/' . base64url_encode($src);
+ return '';
+ }
+
+ /**
+ * Generates an XPath query to select elements whose provided attribute contains
+ * the provided value in a space-separated list.
+ *
+ * @brief Generates attribute search XPath string
+ *
+ * @param string $attr Name of the attribute to seach
+ * @param string $value Value to search in a space-separated list
+ * @return string
+ */
+ private static function buildXPath($attr, $value)
+ {
+ // https://www.westhoffswelt.de/blog/2009/6/9/select-html-elements-with-more-than-one-css-class-using-xpath
+ return "contains(normalize-space(@$attr), ' $value ') or substring(normalize-space(@$attr), 1, string-length('$value') + 1) = '$value ' or substring(normalize-space(@$attr), string-length(@$attr) - string-length('$value')) = ' $value' or @$attr = '$value'";
+ }
+
+ /**
+ * Returns the inner XML string of a provided DOMNode
+ *
+ * @brief Returns the inner XML string of a provided DOMNode
+ *
+ * @param DOMNode $node
+ * @return string
+ */
+ private static function getInnerHTML(DOMNode $node)
+ {
+ $innerHTML = '';
+ $children = $node->childNodes;
+ foreach ($children as $child) {
+ $innerHTML .= $child->ownerDocument->saveXML($child);
+ }
+ return $innerHTML;
+ }
+
+}