[tt-rss.git] / plugins / af_redditimgur / init.php

<?php
class Af_RedditImgur extends Plugin {

	/* @var PluginHost $host */
	private $host;

	function about() {
		return array(1.0,
			"Inline images (and other content) in Reddit RSS feeds",
			"fox");
	}

	function flags() {
		return array("needs_curl" => true);
	}

	function init($host) {
		$this->host = $host;

		$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
		$host->add_hook($host::HOOK_PREFS_TAB, $this);
	}

	function hook_prefs_tab($args) {
		if ($args != "prefFeeds") return;

		print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Reddit content settings (af_redditimgur)')."\">";

		$enable_readability = $this->host->get($this, "enable_readability");
		$enable_content_dupcheck = $this->host->get($this, "enable_content_dupcheck");

		print "<form dojoType=\"dijit.form.Form\">";

		print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
			evt.preventDefault();
			if (this.validate()) {
				console.log(dojo.objectToQuery(this.getValues()));
				new Ajax.Request('backend.php', {
					parameters: dojo.objectToQuery(this.getValues()),
					onComplete: function(transport) {
						notify_info(transport.responseText);
					}
				});
				//this.reset();
			}
			</script>";

		print_hidden("op", "pluginhandler");
		print_hidden("method", "save");
		print_hidden("plugin", "af_redditimgur");

		print "<p>" . __("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
		print "<p/>";

		print_checkbox("enable_readability", $enable_readability);
		print "&nbsp;<label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";

		print "<br/>";

		print_checkbox("enable_content_dupcheck", $enable_content_dupcheck);
		print "&nbsp;<label for=\"enable_content_dupcheck\">" . __("Enable additional duplicate checking") . "</label>";
		print "<p>"; print_button("submit", __("Save"));
		print "</form>";

		print "</div>";
	}

	function save() {
		$enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]);
		$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]);

		$this->host->set($this, "enable_readability", $enable_readability, false);
		$this->host->set($this, "enable_content_dupcheck", $enable_content_dupcheck);

		echo __("Configuration saved");
	}

	/**
	 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
	 */
	private function inline_stuff($article, &$doc, $xpath, $debug = false) {

		$entries = $xpath->query('(//a[@href]|//img[@src])');
		$img_entries = $xpath->query("(//img[@src])");

		$found = false;

		foreach ($entries as $entry) {
			if ($entry->hasAttribute("href")) {

				_debug("processing href: " . $entry->getAttribute("href"), $debug);

				$matches = array();

				if (preg_match("/^https?:\/\/twitter.com\/(.*?)\/status\/(.*)/", $entry->getAttribute("href"), $matches)) {
					_debug("handling as twitter: " . $matches[1] . " " . $matches[2], $debug);

					$oembed_result = fetch_file_contents("https://publish.twitter.com/oembed?url=" . urlencode($entry->getAttribute("href")));

					if ($oembed_result) {
						$oembed_result = json_decode($oembed_result, true);

						if ($oembed_result && isset($oembed_result["html"])) {

							$tmp = new DOMDocument();
							if ($tmp->loadHTML('<?xml encoding="utf-8" ?>' . $oembed_result["html"])) {
								$p = $doc->createElement("p");

								$p->appendChild($doc->importNode(
									$tmp->getElementsByTagName("blockquote")->item(0), TRUE));

								$br = $doc->createElement('br');
								$entry->parentNode->insertBefore($p, $entry);
								$entry->parentNode->insertBefore($br, $entry);

								$found = 1;
							}
						}
					}
				}

				if (!$found && preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
					$entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
				}

				if (!$found && preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {

					_debug("Handling as Gfycat", $debug);

					$tmp = fetch_file_contents($entry->getAttribute("href"));

					if ($tmp) {
						$tmpdoc = new DOMDocument();

						if (@$tmpdoc->loadHTML($tmp)) {
							$tmpxpath = new DOMXPath($tmpdoc);

							$source_node = $tmpxpath->query("//video[contains(@class,'share-video')]//source[contains(@src, '.mp4')]")->item(0);
							$poster_node = $tmpxpath->query("//video[contains(@class,'share-video') and @poster]")->item(0);

							if ($source_node && $poster_node) {
								$source_stream = $source_node->getAttribute("src");
								$poster_url = $poster_node->getAttribute("poster");

								$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
								$found = 1;
							}
						}
					}
				}

				if (!$found && preg_match("/https?:\/\/v\.redd\.it\/(.*)$/i", $entry->getAttribute("href"), $matches)) {

					_debug("Handling as reddit inline video", $debug);

					$img = $img_entries->item(0);

					if ($img) {
						$poster_url = $img->getAttribute("src");
					} else {
						$poster_url = false;
					}

					// Get original article URL from v.redd.it redirects
					$source_article_url = $this->get_location($matches[0]);
					_debug("Resolved ".$matches[0]." to ".$source_article_url, $debug);

					$source_stream = false;

					if ($source_article_url) {
						$j = json_decode(fetch_file_contents($source_article_url.".json"), true);

						if ($j) {
							foreach ($j as $listing) {
								foreach ($listing["data"]["children"] as $child) {
									if ($child["data"]["url"] == $matches[0]) {
										try {
											$source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
										}
										catch (Exception $e) {
										}
										break 2;
									}
								}
							}
						}
					}

					if (!$source_stream) {
						$source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
					}

					$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
					$found = 1;
				}

				if (!$found && preg_match("/https?:\/\/(www\.)?streamable.com\//i", $entry->getAttribute("href"))) {

					_debug("Handling as Streamable", $debug);

					$tmp = fetch_file_contents($entry->getAttribute("href"));

					if ($tmp) {
						$tmpdoc = new DOMDocument();

						if (@$tmpdoc->loadHTML($tmp)) {
							$tmpxpath = new DOMXPath($tmpdoc);

							$source_node = $tmpxpath->query("//video[contains(@class,'video-player-tag')]//source[contains(@src, '.mp4')]")->item(0);
							$poster_node = $tmpxpath->query("//video[contains(@class,'video-player-tag') and @poster]")->item(0);

							if ($source_node && $poster_node) {
								$source_stream = $source_node->getAttribute("src");
								$poster_url = $poster_node->getAttribute("poster");

								$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
								$found = 1;
							}
						}
					}
				}

				// imgur .gif -> .gifv
				if (!$found && preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
					_debug("Handling as imgur gif (->gifv)", $debug);

					$entry->setAttribute("href",
						str_replace(".gif", ".gifv", $entry->getAttribute("href")));
				}

				if (!$found && preg_match("/\.(gifv|mp4)$/i", $entry->getAttribute("href"))) {
					_debug("Handling as imgur gifv", $debug);

					$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));

					if (strpos($source_stream, "imgur.com") !== FALSE)
						$poster_url = str_replace(".mp4", "h.jpg", $source_stream);

					$this->handle_as_video($doc, $entry, $source_stream, $poster_url, $debug);

					$found = true;
				}

				$matches = array();
				if (!$found && preg_match("/youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) ||
					preg_match("/youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
					preg_match("/youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
					preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {

					$vid_id = $matches[1];

					_debug("Handling as youtube: $vid_id", $debug);

					$iframe = $doc->createElement("iframe");
					$iframe->setAttribute("class", "youtube-player");
					$iframe->setAttribute("type", "text/html");
					$iframe->setAttribute("width", "640");
					$iframe->setAttribute("height", "385");
					$iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
					$iframe->setAttribute("allowfullscreen", "1");
					$iframe->setAttribute("frameborder", "0");

					$br = $doc->createElement('br');
					$entry->parentNode->insertBefore($iframe, $entry);
					$entry->parentNode->insertBefore($br, $entry);

					$found = true;
				}

				if (!$found && preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href")) ||
					mb_strpos($entry->getAttribute("href"), "i.reddituploads.com") !== FALSE ||
					mb_strpos($this->get_content_type($entry->getAttribute("href")), "image/") !== FALSE) {

					_debug("Handling as a picture", $debug);

					$img = $doc->createElement('img');
					$img->setAttribute("src", $entry->getAttribute("href"));

					$br = $doc->createElement('br');
					$entry->parentNode->insertBefore($img, $entry);
					$entry->parentNode->insertBefore($br, $entry);

					$found = true;
				}

				// linked albums & pages

				if (!$found && preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches) ||
					preg_match("/^https?:\/\/(m\.)?imgur.com\/(a|album|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {

					_debug("Handling as an imgur page/album/gallery", $debug);

					$album_content = fetch_file_contents($entry->getAttribute("href"),
						false, false, false, false, 10);

					if ($album_content) {
						$adoc = new DOMDocument();

						if (@$adoc->loadHTML($album_content)) {
							$axpath = new DOMXPath($adoc);

							$aentries = $axpath->query("(//div[@class='post-image']/img[@src] | //a[@class='zoom']/img[@src] | //div[@class='video-elements']/source)");
							$urls = [];

							foreach ($aentries as $aentry) {

								$url = $aentry->getAttribute("src");

								if (!in_array($url, $urls)) {

									if ($aentry->tagName == "img") {

										$img = $doc->createElement('img');
										$img->setAttribute("src", $url);
										$entry->parentNode->insertBefore($doc->createElement('br'), $entry);

										$br = $doc->createElement('br');

										$entry->parentNode->insertBefore($img, $entry);
										$entry->parentNode->insertBefore($br, $entry);
									} else if ($aentry->tagName == "source") {

										if (strpos($url, "imgur.com") !== FALSE)
											$poster_url = str_replace(".mp4", "h.jpg", $url);
										else
											$poster_url = "";

										$this->handle_as_video($doc, $entry, $url, $poster_url);

									}

									array_push($urls, $url);

									$found = true;
								}

							}

							if ($debug) print_r($urls);
						}
					}
				}

				// wtf is this even
				if (!$found && preg_match("/^https?:\/\/gyazo\.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
					$img_id = $matches[1];

					_debug("handling as gyazo: $img_id", $debug);

					$img = $doc->createElement('img');
					$img->setAttribute("src", "https://i.gyazo.com/$img_id.jpg");

					$br = $doc->createElement('br');
					$entry->parentNode->insertBefore($img, $entry);
					$entry->parentNode->insertBefore($br, $entry);

					$found = true;
				}
			}

			// remove tiny thumbnails
			if ($entry->hasAttribute("src")) {
				if ($entry->parentNode && $entry->parentNode->parentNode) {
					$entry->parentNode->parentNode->removeChild($entry->parentNode);
				}
			}
		}

		return $found;
	}

	function hook_article_filter($article) {

		if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
			$doc = new DOMDocument();
			@$doc->loadHTML($article["content"]);
			$xpath = new DOMXPath($doc);

			$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);

			if ($this->host->get($this, "enable_content_dupcheck")) {

				if ($content_link) {
					$content_href = $content_link->getAttribute("href");
					$entry_guid = $article["guid_hashed"];
					$owner_uid = $article["owner_uid"];

					if (DB_TYPE == "pgsql") {
						$interval_qpart = "date_entered < NOW() - INTERVAL '1 day'";
					} else {
						$interval_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY)";
					}

					$sth = $this->pdo->prepare("SELECT COUNT(id) AS cid
						FROM ttrss_entries, ttrss_user_entries WHERE
							ref_id = id AND
							$interval_qpart AND
							guid != ? AND
							owner_uid = ? AND
							content LIKE ?");

					$sth->execute([$entry_guid, $owner_uid, "%href=\"$content_href\">[link]%"]);

					if ($row = $sth->fetch()) {
						$num_found = $row['cid'];

						if ($num_found > 0) $article["force_catchup"] = true;
					}
				}
			}

			$found = $this->inline_stuff($article, $doc, $xpath);

			$node = $doc->getElementsByTagName('body')->item(0);

			if ($node && $found) {
				$article["content"] = $doc->saveHTML($node);
			} else if ($content_link) {
				$article = $this->readability($article, $content_link->getAttribute("href"), $doc, $xpath);
			}
		}

		return $article;
	}

	function api_version() {
		return 2;
	}

	private function handle_as_video($doc, $entry, $source_stream, $poster_url = false, $debug = false) {

		_debug("handle_as_video: $source_stream", $debug);

		$video = $doc->createElement('video');
		$video->setAttribute("autoplay", "1");
		$video->setAttribute("controls", "1");
		$video->setAttribute("loop", "1");

		if ($poster_url) $video->setAttribute("poster", $poster_url);

		$source = $doc->createElement('source');
		$source->setAttribute("src", $source_stream);
		$source->setAttribute("type", "video/mp4");

		$video->appendChild($source);

		$br = $doc->createElement('br');
		$entry->parentNode->insertBefore($video, $entry);
		$entry->parentNode->insertBefore($br, $entry);

		$img = $doc->createElement('img');
		$img->setAttribute("src",
			"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");

		$entry->parentNode->insertBefore($img, $entry);
	}

	function testurl() {
		$url = htmlspecialchars($_REQUEST["url"]);

		header("Content-type: text/plain");

		print "URL: $url\n";

		$doc = new DOMDocument();
		@$doc->loadHTML("<html><body><a href=\"$url\">[link]</a></body>");
		$xpath = new DOMXPath($doc);

		$found = $this->inline_stuff([], $doc, $xpath, true);

		print "Inline result: $found\n";

		if (!$found) {
			print "\nReadability result:\n";

			$article = $this->readability([], $url, $doc, $xpath, true);

			print_r($article);
		} else {
			print "\nResulting HTML:\n";

			print $doc->saveHTML();
		}
	}

	private function get_header($url, $useragent = SELF_USER_AGENT, $header) {
		$ret = false;

		if (function_exists("curl_init") && !defined("NO_CURL")) {
			$ch = curl_init($url);
			curl_setopt($ch, CURLOPT_TIMEOUT, 5);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
			curl_setopt($ch, CURLOPT_HEADER, true);
			curl_setopt($ch, CURLOPT_NOBODY, true);
			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
			curl_setopt($ch, CURLOPT_USERAGENT, $useragent);

			@curl_exec($ch);
			$ret = curl_getinfo($ch, $header);
		}

		return $ret;
	}

	private function get_content_type($url, $useragent = SELF_USER_AGENT) {
		return $this->get_header($url, $useragent, CURLINFO_CONTENT_TYPE);
	}

	private function get_location($url, $useragent = SELF_USER_AGENT) {
		return $this->get_header($url, $useragent, CURLINFO_EFFECTIVE_URL);
	}

	/**
	 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
	 */
	private function readability($article, $url, $doc, $xpath, $debug = false) {

		if (!defined('NO_CURL') && function_exists("curl_init") && $this->host->get($this, "enable_readability") &&
			mb_strlen(strip_tags($article["content"])) <= 150) {

			if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");

			if ($url &&
				strpos($url, "twitter.com") === FALSE &&
				strpos($url, "youtube.com") === FALSE &&
				strpos($url, "reddit.com") === FALSE) {

				/* link may lead to a huge video file or whatever, we need to check content type before trying to
				parse it which p much requires curl */

				$useragent_compat = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";

				$content_type = $this->get_content_type($url, $useragent_compat);

				if ($content_type && strpos($content_type, "text/html") !== FALSE) {

					$tmp = fetch_file_contents(array("url" => $url,
						"useragent" => $useragent_compat));

					if ($debug) _debug("tmplen: " . mb_strlen($tmp));

					if ($tmp && mb_strlen($tmp) < 1024 * 500) {

						$r = new Readability($tmp, $url);

						if ($r->init()) {

							$tmpxpath = new DOMXPath($r->dom);

							$entries = $tmpxpath->query('(//a[@href]|//img[@src])');

							foreach ($entries as $entry) {
								if ($entry->hasAttribute("href")) {
									$entry->setAttribute("href",
										rewrite_relative_url($url, $entry->getAttribute("href")));

								}

								if ($entry->hasAttribute("src")) {
									$entry->setAttribute("src",
										rewrite_relative_url($url, $entry->getAttribute("src")));

								}

							}

							$article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
						}
					}
				}
			}
		}

		return $article;
	}
}
Commit	Line	Data
cc85704f	1	<?php
0862a602	2	class Af_RedditImgur extends Plugin {
11d1a8a6 AD	3
11d1a8a6 AD	4	/* @var PluginHost $host */
19c73507 AD	5	private $host;
19c73507 AD	6
d2a421e3	7	function about() {
7a866114	8	return array(1.0,
a95fb169	9	"Inline images (and other content) in Reddit RSS feeds",
7a866114 AD	10	"fox");
	11	}
	12
41245888 AD	13	function flags() {
	14	return array("needs_curl" => true);
	15	}
	16
d2a421e3	17	function init($host) {
19c73507 AD	18	$this->host = $host;
	19
	20	$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
b90c4468 AD	21	$host->add_hook($host::HOOK_PREFS_TAB, $this);
	22	}
	23
	24	function hook_prefs_tab($args) {
	25	if ($args != "prefFeeds") return;
	26
dc8bd8a6	27	print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Reddit content settings (af_redditimgur)')."\">";
b90c4468 AD	28
b90c4468 AD	29	$enable_readability = $this->host->get($this, "enable_readability");
891b77f9	30	$enable_content_dupcheck = $this->host->get($this, "enable_content_dupcheck");
8788698b	31
b90c4468 AD	32	print "<form dojoType=\"dijit.form.Form\">";
	33
	34	print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
	35	evt.preventDefault();
	36	if (this.validate()) {
	37	console.log(dojo.objectToQuery(this.getValues()));
	38	new Ajax.Request('backend.php', {
	39	parameters: dojo.objectToQuery(this.getValues()),
	40	onComplete: function(transport) {
	41	notify_info(transport.responseText);
	42	}
	43	});
	44	//this.reset();
	45	}
	46	</script>";
	47
328118d1 AD	48	print_hidden("op", "pluginhandler");
	49	print_hidden("method", "save");
	50	print_hidden("plugin", "af_redditimgur");
b90c4468	51
73dfda1d	52	print "<p>" . __("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
b90c4468 AD	53	print "<p/>";
b90c4468 AD	54
dc8bd8a6 AD	55	print_checkbox("enable_readability", $enable_readability);
dc8bd8a6 AD	56	print " <label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
b90c4468	57
891b77f9	58	print "<br/>";
8788698b	59
dc8bd8a6 AD	60	print_checkbox("enable_content_dupcheck", $enable_content_dupcheck);
	61	print " <label for=\"enable_content_dupcheck\">" . __("Enable additional duplicate checking") . "</label>";
	62	print "<p>"; print_button("submit", __("Save"));
b90c4468 AD	63	print "</form>";
	64
	65	print "</div>";
	66	}
	67
	68	function save() {
da9ea57d AD	69	$enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]);
da9ea57d AD	70	$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]);
4533b3ef	71
891b77f9 AD	72	$this->host->set($this, "enable_readability", $enable_readability, false);
891b77f9 AD	73	$this->host->set($this, "enable_content_dupcheck", $enable_content_dupcheck);
b90c4468 AD	74
b90c4468 AD	75	echo __("Configuration saved");
19c73507 AD	76	}
19c73507 AD	77
21ce7d9e AD	78	/**
	79	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	80	*/
ec482d28	81	private function inline_stuff($article, &$doc, $xpath, $debug = false) {
cc85704f	82
6322fc68	83	$entries = $xpath->query('(//a[@href]\|//img[@src])');
06a19166	84	$img_entries = $xpath->query("(//img[@src])");
cc85704f	85
6322fc68	86	$found = false;
ce7d5e87	87
6322fc68 AD	88	foreach ($entries as $entry) {
6322fc68 AD	89	if ($entry->hasAttribute("href")) {
299aeb30	90
ec482d28 AD	91	_debug("processing href: " . $entry->getAttribute("href"), $debug);
ec482d28 AD	92
6322fc68	93	$matches = array();
5d429910	94
8788698b AD	95	if (preg_match("/^https?:\/\/twitter.com\/(.?)\/status\/(.)/", $entry->getAttribute("href"), $matches)) {
	96	_debug("handling as twitter: " . $matches[1] . " " . $matches[2], $debug);
	97
	98	$oembed_result = fetch_file_contents("https://publish.twitter.com/oembed?url=" . urlencode($entry->getAttribute("href")));
	99
	100	if ($oembed_result) {
	101	$oembed_result = json_decode($oembed_result, true);
	102
	103	if ($oembed_result && isset($oembed_result["html"])) {
	104
	105	$tmp = new DOMDocument();
48007463	106	if ($tmp->loadHTML('<?xml encoding="utf-8" ?>' . $oembed_result["html"])) {
8788698b AD	107	$p = $doc->createElement("p");
	108
	109	$p->appendChild($doc->importNode(
	110	$tmp->getElementsByTagName("blockquote")->item(0), TRUE));
	111
	112	$br = $doc->createElement('br');
	113	$entry->parentNode->insertBefore($p, $entry);
	114	$entry->parentNode->insertBefore($br, $entry);
	115
	116	$found = 1;
	117	}
	118	}
	119	}
	120	}
	121
43db5b99	122	if (!$found && preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5f297a5c AD	123	$entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
	124	}
	125
43db5b99	126	if (!$found && preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5d429910	127
ec482d28 AD	128	_debug("Handling as Gfycat", $debug);
ec482d28 AD	129
6322fc68	130	$tmp = fetch_file_contents($entry->getAttribute("href"));
5d429910	131
6322fc68 AD	132	if ($tmp) {
6322fc68 AD	133	$tmpdoc = new DOMDocument();
5d429910	134
58a44ecb	135	if (@$tmpdoc->loadHTML($tmp)) {
6322fc68	136	$tmpxpath = new DOMXPath($tmpdoc);
b8887ebb	137
46506d3f AD	138	$source_node = $tmpxpath->query("//video[contains(@class,'share-video')]//source[contains(@src, '.mp4')]")->item(0);
46506d3f AD	139	$poster_node = $tmpxpath->query("//video[contains(@class,'share-video') and @poster]")->item(0);
5d429910	140
46506d3f AD	141	if ($source_node && $poster_node) {
	142	$source_stream = $source_node->getAttribute("src");
	143	$poster_url = $poster_node->getAttribute("poster");
5d429910	144
46506d3f AD	145	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
46506d3f AD	146	$found = 1;
5d429910	147	}
6322fc68 AD	148	}
6322fc68 AD	149	}
6322fc68	150	}
98e20510	151
06a19166 AD	152	if (!$found && preg_match("/https?:\/\/v\.redd\.it\/(.*)$/i", $entry->getAttribute("href"), $matches)) {
	153
	154	_debug("Handling as reddit inline video", $debug);
	155
	156	$img = $img_entries->item(0);
	157
	158	if ($img) {
	159	$poster_url = $img->getAttribute("src");
	160	} else {
	161	$poster_url = false;
	162	}
	163
8352d7c6	164	// Get original article URL from v.redd.it redirects
	165	$source_article_url = $this->get_location($matches[0]);
	166	_debug("Resolved ".$matches[0]." to ".$source_article_url, $debug);
	167
81d83a68	168	$source_stream = false;
8352d7c6	169
	170	if ($source_article_url) {
	171	$j = json_decode(fetch_file_contents($source_article_url.".json"), true);
	172
	173	if ($j) {
	174	foreach ($j as $listing) {
	175	foreach ($listing["data"]["children"] as $child) {
	176	if ($child["data"]["url"] == $matches[0]) {
	177	try {
	178	$source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
	179	}
	180	catch (Exception $e) {
	181	}
	182	break 2;
81d83a68	183	}
81d83a68	184	}
	185	}
	186	}
	187	}
	188
	189	if (!$source_stream) {
	190	$source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
	191	}
06a19166 AD	192
	193	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	194	$found = 1;
	195	}
	196
60e97d9e AD	197	if (!$found && preg_match("/https?:\/\/(www\.)?streamable.com\//i", $entry->getAttribute("href"))) {
	198
	199	_debug("Handling as Streamable", $debug);
	200
	201	$tmp = fetch_file_contents($entry->getAttribute("href"));
	202
	203	if ($tmp) {
	204	$tmpdoc = new DOMDocument();
	205
	206	if (@$tmpdoc->loadHTML($tmp)) {
	207	$tmpxpath = new DOMXPath($tmpdoc);
	208
	209	$source_node = $tmpxpath->query("//video[contains(@class,'video-player-tag')]//source[contains(@src, '.mp4')]")->item(0);
	210	$poster_node = $tmpxpath->query("//video[contains(@class,'video-player-tag') and @poster]")->item(0);
	211
	212	if ($source_node && $poster_node) {
	213	$source_stream = $source_node->getAttribute("src");
	214	$poster_url = $poster_node->getAttribute("poster");
	215
	216	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	217	$found = 1;
	218	}
	219	}
	220	}
	221	}
	222
5f297a5c	223	// imgur .gif -> .gifv
43db5b99	224	if (!$found && preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
ec482d28 AD	225	_debug("Handling as imgur gif (->gifv)", $debug);
ec482d28 AD	226
5f297a5c AD	227	$entry->setAttribute("href",
	228	str_replace(".gif", ".gifv", $entry->getAttribute("href")));
	229	}
	230
8c395462	231	if (!$found && preg_match("/\.(gifv\|mp4)$/i", $entry->getAttribute("href"))) {
ec482d28	232	_debug("Handling as imgur gifv", $debug);
5d429910	233
6322fc68	234	$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
b8887ebb	235
49048482	236	if (strpos($source_stream, "imgur.com") !== FALSE)
b8887ebb AD	237	$poster_url = str_replace(".mp4", "h.jpg", $source_stream);
b8887ebb AD	238
ec482d28	239	$this->handle_as_video($doc, $entry, $source_stream, $poster_url, $debug);
98e20510	240
6322fc68 AD	241	$found = true;
6322fc68 AD	242	}
9875d717	243
6322fc68	244	$matches = array();
43db5b99	245	if (!$found && preg_match("/youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	246	preg_match("/youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	247	preg_match("/youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
6322fc68	248	preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
3b9ca4e6	249
6322fc68	250	$vid_id = $matches[1];
3b9ca4e6	251
ec482d28 AD	252	_debug("Handling as youtube: $vid_id", $debug);
ec482d28 AD	253
6322fc68 AD	254	$iframe = $doc->createElement("iframe");
	255	$iframe->setAttribute("class", "youtube-player");
	256	$iframe->setAttribute("type", "text/html");
	257	$iframe->setAttribute("width", "640");
	258	$iframe->setAttribute("height", "385");
	259	$iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
	260	$iframe->setAttribute("allowfullscreen", "1");
	261	$iframe->setAttribute("frameborder", "0");
3b9ca4e6	262
6322fc68 AD	263	$br = $doc->createElement('br');
	264	$entry->parentNode->insertBefore($iframe, $entry);
	265	$entry->parentNode->insertBefore($br, $entry);
3b9ca4e6	266
6322fc68 AD	267	$found = true;
6322fc68 AD	268	}
3b9ca4e6	269
43db5b99	270	if (!$found && preg_match("/\.(jpg\|jpeg\|gif\|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href")) \|\|
90e45935 AD	271	mb_strpos($entry->getAttribute("href"), "i.reddituploads.com") !== FALSE \|\|
90e45935 AD	272	mb_strpos($this->get_content_type($entry->getAttribute("href")), "image/") !== FALSE) {
eb95d1bd	273
ec482d28 AD	274	_debug("Handling as a picture", $debug);
ec482d28 AD	275
6322fc68 AD	276	$img = $doc->createElement('img');
6322fc68 AD	277	$img->setAttribute("src", $entry->getAttribute("href"));
cc85704f	278
6322fc68 AD	279	$br = $doc->createElement('br');
	280	$entry->parentNode->insertBefore($img, $entry);
	281	$entry->parentNode->insertBefore($br, $entry);
ce7d5e87	282
6322fc68 AD	283	$found = true;
6322fc68 AD	284	}
ce7d5e87	285
d4ac4fc6	286	// linked albums & pages
35055d05	287
43db5b99	288	if (!$found && preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches) \|\|
8b2a52c6	289	preg_match("/^https?:\/\/(m\.)?imgur.com\/(a\|album\|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
35055d05	290
c80175bd	291	_debug("Handling as an imgur page/album/gallery", $debug);
ec482d28	292
6322fc68 AD	293	$album_content = fetch_file_contents($entry->getAttribute("href"),
6322fc68 AD	294	false, false, false, false, 10);
35055d05	295
6322fc68 AD	296	if ($album_content) {
6322fc68 AD	297	$adoc = new DOMDocument();
35055d05	298
58a44ecb	299	if (@$adoc->loadHTML($album_content)) {
6322fc68	300	$axpath = new DOMXPath($adoc);
ec482d28	301
a6fde6c9	302	$aentries = $axpath->query("(//div[@class='post-image']/img[@src] \| //a[@class='zoom']/img[@src] \| //div[@class='video-elements']/source)");
ec482d28 AD	303	$urls = [];
	304
	305	foreach ($aentries as $aentry) {
	306
	307	$url = $aentry->getAttribute("src");
	308
	309	if (!in_array($url, $urls)) {
ec482d28	310
a6fde6c9	311	if ($aentry->tagName == "img") {
ec482d28	312
a6fde6c9 AD	313	$img = $doc->createElement('img');
	314	$img->setAttribute("src", $url);
	315	$entry->parentNode->insertBefore($doc->createElement('br'), $entry);
	316
	317	$br = $doc->createElement('br');
	318
	319	$entry->parentNode->insertBefore($img, $entry);
	320	$entry->parentNode->insertBefore($br, $entry);
	321	} else if ($aentry->tagName == "source") {
	322
49048482	323	if (strpos($url, "imgur.com") !== FALSE)
a6fde6c9 AD	324	$poster_url = str_replace(".mp4", "h.jpg", $url);
	325	else
	326	$poster_url = "";
	327
	328	$this->handle_as_video($doc, $entry, $url, $poster_url);
	329
	330	}
ec482d28 AD	331
	332	array_push($urls, $url);
	333
	334	$found = true;
	335	}
	336
35055d05	337	}
ec482d28 AD	338
ec482d28 AD	339	if ($debug) print_r($urls);
cc85704f	340	}
cc85704f	341	}
6322fc68	342	}
58a44ecb AD	343
58a44ecb AD	344	// wtf is this even
43db5b99	345	if (!$found && preg_match("/^https?:\/\/gyazo\.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
58a44ecb AD	346	$img_id = $matches[1];
58a44ecb AD	347
ec482d28 AD	348	_debug("handling as gyazo: $img_id", $debug);
ec482d28 AD	349
58a44ecb AD	350	$img = $doc->createElement('img');
	351	$img->setAttribute("src", "https://i.gyazo.com/$img_id.jpg");
	352
	353	$br = $doc->createElement('br');
	354	$entry->parentNode->insertBefore($img, $entry);
	355	$entry->parentNode->insertBefore($br, $entry);
	356
	357	$found = true;
	358	}
6322fc68 AD	359	}
	360
	361	// remove tiny thumbnails
	362	if ($entry->hasAttribute("src")) {
	363	if ($entry->parentNode && $entry->parentNode->parentNode) {
	364	$entry->parentNode->parentNode->removeChild($entry->parentNode);
	365	}
	366	}
	367	}
cc85704f	368
6322fc68 AD	369	return $found;
6322fc68 AD	370	}
b90c4468	371
6322fc68	372	function hook_article_filter($article) {
b90c4468	373
6322fc68 AD	374	if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
	375	$doc = new DOMDocument();
	376	@$doc->loadHTML($article["content"]);
	377	$xpath = new DOMXPath($doc);
99bb8b3b	378
582ff3cf AD	379	$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
582ff3cf AD	380
891b77f9	381	if ($this->host->get($this, "enable_content_dupcheck")) {
902b1ac7	382
891b77f9	383	if ($content_link) {
11d1a8a6 AD	384	$content_href = $content_link->getAttribute("href");
11d1a8a6 AD	385	$entry_guid = $article["guid_hashed"];
891b77f9	386	$owner_uid = $article["owner_uid"];
902b1ac7	387
891b77f9 AD	388	if (DB_TYPE == "pgsql") {
	389	$interval_qpart = "date_entered < NOW() - INTERVAL '1 day'";
	390	} else {
	391	$interval_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY)";
	392	}
902b1ac7	393
11d1a8a6	394	$sth = $this->pdo->prepare("SELECT COUNT(id) AS cid
891b77f9 AD	395	FROM ttrss_entries, ttrss_user_entries WHERE
	396	ref_id = id AND
	397	$interval_qpart AND
11d1a8a6 AD	398	guid != ? AND
	399	owner_uid = ? AND
	400	content LIKE ?");
	401
	402	$sth->execute([$entry_guid, $owner_uid, "%href=\"$content_href\">[link]%"]);
902b1ac7	403
11d1a8a6 AD	404	if ($row = $sth->fetch()) {
11d1a8a6 AD	405	$num_found = $row['cid'];
902b1ac7	406
891b77f9 AD	407	if ($num_found > 0) $article["force_catchup"] = true;
891b77f9 AD	408	}
902b1ac7	409	}
891b77f9	410	}
4f5204dd	411
4533b3ef	412	$found = $this->inline_stuff($article, $doc, $xpath);
b90c4468	413
6322fc68 AD	414	$node = $doc->getElementsByTagName('body')->item(0);
	415
	416	if ($node && $found) {
f3774b9d	417	$article["content"] = $doc->saveHTML($node);
e487e92d AD	418	} else if ($content_link) {
e487e92d AD	419	$article = $this->readability($article, $content_link->getAttribute("href"), $doc, $xpath);
6322fc68	420	}
cc85704f AD	421	}
	422
	423	return $article;
	424	}
106a3de9 AD	425
	426	function api_version() {
	427	return 2;
	428	}
	429
ec482d28 AD	430	private function handle_as_video($doc, $entry, $source_stream, $poster_url = false, $debug = false) {
	431
	432	_debug("handle_as_video: $source_stream", $debug);
5d429910 AD	433
	434	$video = $doc->createElement('video');
	435	$video->setAttribute("autoplay", "1");
5dcc7bf1	436	$video->setAttribute("controls", "1");
5d429910 AD	437	$video->setAttribute("loop", "1");
5d429910 AD	438
b8887ebb AD	439	if ($poster_url) $video->setAttribute("poster", $poster_url);
b8887ebb AD	440
5d429910 AD	441	$source = $doc->createElement('source');
	442	$source->setAttribute("src", $source_stream);
	443	$source->setAttribute("type", "video/mp4");
	444
	445	$video->appendChild($source);
	446
	447	$br = $doc->createElement('br');
	448	$entry->parentNode->insertBefore($video, $entry);
	449	$entry->parentNode->insertBefore($br, $entry);
	450
	451	$img = $doc->createElement('img');
	452	$img->setAttribute("src",
	453	"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
	454
	455	$entry->parentNode->insertBefore($img, $entry);
	456	}
ec482d28 AD	457
	458	function testurl() {
	459	$url = htmlspecialchars($_REQUEST["url"]);
	460
	461	header("Content-type: text/plain");
	462
	463	print "URL: $url\n";
	464
	465	$doc = new DOMDocument();
	466	@$doc->loadHTML("<html><body><a href=\"$url\">[link]</a></body>");
	467	$xpath = new DOMXPath($doc);
	468
e487e92d AD	469	$found = $this->inline_stuff([], $doc, $xpath, true);
	470
	471	print "Inline result: $found\n";
	472
	473	if (!$found) {
	474	print "\nReadability result:\n";
ec482d28	475
e487e92d	476	$article = $this->readability([], $url, $doc, $xpath, true);
ec482d28	477
e487e92d AD	478	print_r($article);
	479	} else {
	480	print "\nResulting HTML:\n";
ec482d28	481
e487e92d AD	482	print $doc->saveHTML();
e487e92d AD	483	}
ec482d28	484	}
90e45935	485
b4b5236e	486	private function get_header($url, $useragent = SELF_USER_AGENT, $header) {
b4b5236e	487	$ret = false;
90e45935 AD	488
	489	if (function_exists("curl_init") && !defined("NO_CURL")) {
	490	$ch = curl_init($url);
	491	curl_setopt($ch, CURLOPT_TIMEOUT, 5);
	492	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	493	curl_setopt($ch, CURLOPT_HEADER, true);
	494	curl_setopt($ch, CURLOPT_NOBODY, true);
	495	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
	496	curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
	497
21ce7d9e	498	@curl_exec($ch);
b4b5236e	499	$ret = curl_getinfo($ch, $header);
90e45935 AD	500	}
90e45935 AD	501
b4b5236e	502	return $ret;
90e45935	503	}
e487e92d	504
b4b5236e	505	private function get_content_type($url, $useragent = SELF_USER_AGENT) {
	506	return $this->get_header($url, $useragent, CURLINFO_CONTENT_TYPE);
	507	}
8352d7c6	508
b4b5236e	509	private function get_location($url, $useragent = SELF_USER_AGENT) {
b4b5236e	510	return $this->get_header($url, $useragent, CURLINFO_EFFECTIVE_URL);
8352d7c6	511	}
8352d7c6	512
21ce7d9e AD	513	/**
	514	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	515	*/
e487e92d AD	516	private function readability($article, $url, $doc, $xpath, $debug = false) {
	517
	518	if (!defined('NO_CURL') && function_exists("curl_init") && $this->host->get($this, "enable_readability") &&
	519	mb_strlen(strip_tags($article["content"])) <= 150) {
	520
	521	if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");
	522
	523	if ($url &&
	524	strpos($url, "twitter.com") === FALSE &&
	525	strpos($url, "youtube.com") === FALSE &&
	526	strpos($url, "reddit.com") === FALSE) {
	527
	528	/* link may lead to a huge video file or whatever, we need to check content type before trying to
	529	parse it which p much requires curl */
	530
	531	$useragent_compat = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";
	532
	533	$content_type = $this->get_content_type($url, $useragent_compat);
	534
	535	if ($content_type && strpos($content_type, "text/html") !== FALSE) {
	536
	537	$tmp = fetch_file_contents(array("url" => $url,
	538	"useragent" => $useragent_compat));
	539
	540	if ($debug) _debug("tmplen: " . mb_strlen($tmp));
	541
	542	if ($tmp && mb_strlen($tmp) < 1024 * 500) {
	543
	544	$r = new Readability($tmp, $url);
	545
	546	if ($r->init()) {
	547
	548	$tmpxpath = new DOMXPath($r->dom);
	549
	550	$entries = $tmpxpath->query('(//a[@href]\|//img[@src])');
	551
	552	foreach ($entries as $entry) {
	553	if ($entry->hasAttribute("href")) {
	554	$entry->setAttribute("href",
	555	rewrite_relative_url($url, $entry->getAttribute("href")));
	556
	557	}
	558
	559	if ($entry->hasAttribute("src")) {
	560	$entry->setAttribute("src",
	561	rewrite_relative_url($url, $entry->getAttribute("src")));
	562
	563	}
	564
	565	}
	566
	567	$article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
	568	}
	569	}
	570	}
	571	}
	572	}
	573
	574	return $article;
	575	}
cc85704f	576	}