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

<?php
class Af_RedditImgur extends Plugin {
	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"]) == "true";
		$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]) == "true";

		$this->host->set($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) {
					$content_href = db_escape_string($content_link->getAttribute("href"));
					$entry_guid = db_escape_string($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)";
					}

					$result = db_query("SELECT COUNT(id) AS cid
						FROM ttrss_entries, ttrss_user_entries WHERE
							ref_id = id AND
							$interval_qpart AND
							guid != '$entry_guid' AND
							owner_uid = '$owner_uid' AND
							content LIKE '%href=\"$content_href\">[link]%'");

					if ($result) {
						$num_found = db_fetch_result($result, 0, "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_content_type($url, $useragent = SELF_USER_AGENT) {
		$content_type = 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);
			$content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
		}

		return $content_type;
	}

	private function get_location($url, $useragent = SELF_USER_AGENT) {
		$location = 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);
			$location = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
		}

		return $location;
	}

	/**
	 * @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 {
19c73507 AD	3	private $host;
19c73507 AD	4
d2a421e3	5	function about() {
7a866114	6	return array(1.0,
a95fb169	7	"Inline images (and other content) in Reddit RSS feeds",
7a866114 AD	8	"fox");
	9	}
	10
41245888 AD	11	function flags() {
	12	return array("needs_curl" => true);
	13	}
	14
d2a421e3	15	function init($host) {
19c73507 AD	16	$this->host = $host;
	17
	18	$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
b90c4468 AD	19	$host->add_hook($host::HOOK_PREFS_TAB, $this);
	20	}
	21
	22	function hook_prefs_tab($args) {
	23	if ($args != "prefFeeds") return;
	24
dc8bd8a6	25	print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Reddit content settings (af_redditimgur)')."\">";
b90c4468 AD	26
b90c4468 AD	27	$enable_readability = $this->host->get($this, "enable_readability");
891b77f9	28	$enable_content_dupcheck = $this->host->get($this, "enable_content_dupcheck");
8788698b	29
b90c4468 AD	30	print "<form dojoType=\"dijit.form.Form\">";
	31
	32	print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
	33	evt.preventDefault();
	34	if (this.validate()) {
	35	console.log(dojo.objectToQuery(this.getValues()));
	36	new Ajax.Request('backend.php', {
	37	parameters: dojo.objectToQuery(this.getValues()),
	38	onComplete: function(transport) {
	39	notify_info(transport.responseText);
	40	}
	41	});
	42	//this.reset();
	43	}
	44	</script>";
	45
328118d1 AD	46	print_hidden("op", "pluginhandler");
	47	print_hidden("method", "save");
	48	print_hidden("plugin", "af_redditimgur");
b90c4468	49
73dfda1d	50	print "<p>" . __("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
b90c4468 AD	51	print "<p/>";
b90c4468 AD	52
dc8bd8a6 AD	53	print_checkbox("enable_readability", $enable_readability);
dc8bd8a6 AD	54	print " <label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
b90c4468	55
891b77f9	56	print "<br/>";
8788698b	57
dc8bd8a6 AD	58	print_checkbox("enable_content_dupcheck", $enable_content_dupcheck);
	59	print " <label for=\"enable_content_dupcheck\">" . __("Enable additional duplicate checking") . "</label>";
	60	print "<p>"; print_button("submit", __("Save"));
b90c4468 AD	61	print "</form>";
	62
	63	print "</div>";
	64	}
	65
	66	function save() {
	67	$enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]) == "true";
891b77f9	68	$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]) == "true";
4533b3ef	69
891b77f9 AD	70	$this->host->set($this, "enable_readability", $enable_readability, false);
891b77f9 AD	71	$this->host->set($this, "enable_content_dupcheck", $enable_content_dupcheck);
b90c4468 AD	72
b90c4468 AD	73	echo __("Configuration saved");
19c73507 AD	74	}
19c73507 AD	75
21ce7d9e AD	76	/**
	77	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	78	*/
ec482d28	79	private function inline_stuff($article, &$doc, $xpath, $debug = false) {
cc85704f	80
6322fc68	81	$entries = $xpath->query('(//a[@href]\|//img[@src])');
06a19166	82	$img_entries = $xpath->query("(//img[@src])");
cc85704f	83
6322fc68	84	$found = false;
ce7d5e87	85
6322fc68 AD	86	foreach ($entries as $entry) {
6322fc68 AD	87	if ($entry->hasAttribute("href")) {
299aeb30	88
ec482d28 AD	89	_debug("processing href: " . $entry->getAttribute("href"), $debug);
ec482d28 AD	90
6322fc68	91	$matches = array();
5d429910	92
8788698b AD	93	if (preg_match("/^https?:\/\/twitter.com\/(.?)\/status\/(.)/", $entry->getAttribute("href"), $matches)) {
	94	_debug("handling as twitter: " . $matches[1] . " " . $matches[2], $debug);
	95
	96	$oembed_result = fetch_file_contents("https://publish.twitter.com/oembed?url=" . urlencode($entry->getAttribute("href")));
	97
	98	if ($oembed_result) {
	99	$oembed_result = json_decode($oembed_result, true);
	100
	101	if ($oembed_result && isset($oembed_result["html"])) {
	102
	103	$tmp = new DOMDocument();
48007463	104	if ($tmp->loadHTML('<?xml encoding="utf-8" ?>' . $oembed_result["html"])) {
8788698b AD	105	$p = $doc->createElement("p");
	106
	107	$p->appendChild($doc->importNode(
	108	$tmp->getElementsByTagName("blockquote")->item(0), TRUE));
	109
	110	$br = $doc->createElement('br');
	111	$entry->parentNode->insertBefore($p, $entry);
	112	$entry->parentNode->insertBefore($br, $entry);
	113
	114	$found = 1;
	115	}
	116	}
	117	}
	118	}
	119
43db5b99	120	if (!$found && preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5f297a5c AD	121	$entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
	122	}
	123
43db5b99	124	if (!$found && preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5d429910	125
ec482d28 AD	126	_debug("Handling as Gfycat", $debug);
ec482d28 AD	127
6322fc68	128	$tmp = fetch_file_contents($entry->getAttribute("href"));
5d429910	129
6322fc68 AD	130	if ($tmp) {
6322fc68 AD	131	$tmpdoc = new DOMDocument();
5d429910	132
58a44ecb	133	if (@$tmpdoc->loadHTML($tmp)) {
6322fc68	134	$tmpxpath = new DOMXPath($tmpdoc);
b8887ebb	135
46506d3f AD	136	$source_node = $tmpxpath->query("//video[contains(@class,'share-video')]//source[contains(@src, '.mp4')]")->item(0);
46506d3f AD	137	$poster_node = $tmpxpath->query("//video[contains(@class,'share-video') and @poster]")->item(0);
5d429910	138
46506d3f AD	139	if ($source_node && $poster_node) {
	140	$source_stream = $source_node->getAttribute("src");
	141	$poster_url = $poster_node->getAttribute("poster");
5d429910	142
46506d3f AD	143	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
46506d3f AD	144	$found = 1;
5d429910	145	}
6322fc68 AD	146	}
6322fc68 AD	147	}
6322fc68	148	}
98e20510	149
06a19166 AD	150	if (!$found && preg_match("/https?:\/\/v\.redd\.it\/(.*)$/i", $entry->getAttribute("href"), $matches)) {
	151
	152	_debug("Handling as reddit inline video", $debug);
	153
	154	$img = $img_entries->item(0);
	155
	156	if ($img) {
	157	$poster_url = $img->getAttribute("src");
	158	} else {
	159	$poster_url = false;
	160	}
	161
8352d7c6	162	// Get original article URL from v.redd.it redirects
	163	$source_article_url = $this->get_location($matches[0]);
	164	_debug("Resolved ".$matches[0]." to ".$source_article_url, $debug);
	165
81d83a68	166	$source_stream = false;
8352d7c6	167
	168	if ($source_article_url) {
	169	$j = json_decode(fetch_file_contents($source_article_url.".json"), true);
	170
	171	if ($j) {
	172	foreach ($j as $listing) {
	173	foreach ($listing["data"]["children"] as $child) {
	174	if ($child["data"]["url"] == $matches[0]) {
	175	try {
	176	$source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
	177	}
	178	catch (Exception $e) {
	179	}
	180	break 2;
81d83a68	181	}
81d83a68	182	}
	183	}
	184	}
	185	}
	186
	187	if (!$source_stream) {
	188	$source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
	189	}
06a19166 AD	190
	191	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	192	$found = 1;
	193	}
	194
60e97d9e AD	195	if (!$found && preg_match("/https?:\/\/(www\.)?streamable.com\//i", $entry->getAttribute("href"))) {
	196
	197	_debug("Handling as Streamable", $debug);
	198
	199	$tmp = fetch_file_contents($entry->getAttribute("href"));
	200
	201	if ($tmp) {
	202	$tmpdoc = new DOMDocument();
	203
	204	if (@$tmpdoc->loadHTML($tmp)) {
	205	$tmpxpath = new DOMXPath($tmpdoc);
	206
	207	$source_node = $tmpxpath->query("//video[contains(@class,'video-player-tag')]//source[contains(@src, '.mp4')]")->item(0);
	208	$poster_node = $tmpxpath->query("//video[contains(@class,'video-player-tag') and @poster]")->item(0);
	209
	210	if ($source_node && $poster_node) {
	211	$source_stream = $source_node->getAttribute("src");
	212	$poster_url = $poster_node->getAttribute("poster");
	213
	214	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	215	$found = 1;
	216	}
	217	}
	218	}
	219	}
	220
5f297a5c	221	// imgur .gif -> .gifv
43db5b99	222	if (!$found && preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
ec482d28 AD	223	_debug("Handling as imgur gif (->gifv)", $debug);
ec482d28 AD	224
5f297a5c AD	225	$entry->setAttribute("href",
	226	str_replace(".gif", ".gifv", $entry->getAttribute("href")));
	227	}
	228
8c395462	229	if (!$found && preg_match("/\.(gifv\|mp4)$/i", $entry->getAttribute("href"))) {
ec482d28	230	_debug("Handling as imgur gifv", $debug);
5d429910	231
6322fc68	232	$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
b8887ebb	233
49048482	234	if (strpos($source_stream, "imgur.com") !== FALSE)
b8887ebb AD	235	$poster_url = str_replace(".mp4", "h.jpg", $source_stream);
b8887ebb AD	236
ec482d28	237	$this->handle_as_video($doc, $entry, $source_stream, $poster_url, $debug);
98e20510	238
6322fc68 AD	239	$found = true;
6322fc68 AD	240	}
9875d717	241
6322fc68	242	$matches = array();
43db5b99	243	if (!$found && preg_match("/youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	244	preg_match("/youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	245	preg_match("/youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
6322fc68	246	preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
3b9ca4e6	247
6322fc68	248	$vid_id = $matches[1];
3b9ca4e6	249
ec482d28 AD	250	_debug("Handling as youtube: $vid_id", $debug);
ec482d28 AD	251
6322fc68 AD	252	$iframe = $doc->createElement("iframe");
	253	$iframe->setAttribute("class", "youtube-player");
	254	$iframe->setAttribute("type", "text/html");
	255	$iframe->setAttribute("width", "640");
	256	$iframe->setAttribute("height", "385");
	257	$iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
	258	$iframe->setAttribute("allowfullscreen", "1");
	259	$iframe->setAttribute("frameborder", "0");
3b9ca4e6	260
6322fc68 AD	261	$br = $doc->createElement('br');
	262	$entry->parentNode->insertBefore($iframe, $entry);
	263	$entry->parentNode->insertBefore($br, $entry);
3b9ca4e6	264
6322fc68 AD	265	$found = true;
6322fc68 AD	266	}
3b9ca4e6	267
43db5b99	268	if (!$found && preg_match("/\.(jpg\|jpeg\|gif\|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href")) \|\|
90e45935 AD	269	mb_strpos($entry->getAttribute("href"), "i.reddituploads.com") !== FALSE \|\|
90e45935 AD	270	mb_strpos($this->get_content_type($entry->getAttribute("href")), "image/") !== FALSE) {
eb95d1bd	271
ec482d28 AD	272	_debug("Handling as a picture", $debug);
ec482d28 AD	273
6322fc68 AD	274	$img = $doc->createElement('img');
6322fc68 AD	275	$img->setAttribute("src", $entry->getAttribute("href"));
cc85704f	276
6322fc68 AD	277	$br = $doc->createElement('br');
	278	$entry->parentNode->insertBefore($img, $entry);
	279	$entry->parentNode->insertBefore($br, $entry);
ce7d5e87	280
6322fc68 AD	281	$found = true;
6322fc68 AD	282	}
ce7d5e87	283
d4ac4fc6	284	// linked albums & pages
35055d05	285
43db5b99	286	if (!$found && preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches) \|\|
8b2a52c6	287	preg_match("/^https?:\/\/(m\.)?imgur.com\/(a\|album\|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
35055d05	288
c80175bd	289	_debug("Handling as an imgur page/album/gallery", $debug);
ec482d28	290
6322fc68 AD	291	$album_content = fetch_file_contents($entry->getAttribute("href"),
6322fc68 AD	292	false, false, false, false, 10);
35055d05	293
6322fc68 AD	294	if ($album_content) {
6322fc68 AD	295	$adoc = new DOMDocument();
35055d05	296
58a44ecb	297	if (@$adoc->loadHTML($album_content)) {
6322fc68	298	$axpath = new DOMXPath($adoc);
ec482d28	299
a6fde6c9	300	$aentries = $axpath->query("(//div[@class='post-image']/img[@src] \| //a[@class='zoom']/img[@src] \| //div[@class='video-elements']/source)");
ec482d28 AD	301	$urls = [];
	302
	303	foreach ($aentries as $aentry) {
	304
	305	$url = $aentry->getAttribute("src");
	306
	307	if (!in_array($url, $urls)) {
ec482d28	308
a6fde6c9	309	if ($aentry->tagName == "img") {
ec482d28	310
a6fde6c9 AD	311	$img = $doc->createElement('img');
	312	$img->setAttribute("src", $url);
	313	$entry->parentNode->insertBefore($doc->createElement('br'), $entry);
	314
	315	$br = $doc->createElement('br');
	316
	317	$entry->parentNode->insertBefore($img, $entry);
	318	$entry->parentNode->insertBefore($br, $entry);
	319	} else if ($aentry->tagName == "source") {
	320
49048482	321	if (strpos($url, "imgur.com") !== FALSE)
a6fde6c9 AD	322	$poster_url = str_replace(".mp4", "h.jpg", $url);
	323	else
	324	$poster_url = "";
	325
	326	$this->handle_as_video($doc, $entry, $url, $poster_url);
	327
	328	}
ec482d28 AD	329
	330	array_push($urls, $url);
	331
	332	$found = true;
	333	}
	334
35055d05	335	}
ec482d28 AD	336
ec482d28 AD	337	if ($debug) print_r($urls);
cc85704f	338	}
cc85704f	339	}
6322fc68	340	}
58a44ecb AD	341
58a44ecb AD	342	// wtf is this even
43db5b99	343	if (!$found && preg_match("/^https?:\/\/gyazo\.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
58a44ecb AD	344	$img_id = $matches[1];
58a44ecb AD	345
ec482d28 AD	346	_debug("handling as gyazo: $img_id", $debug);
ec482d28 AD	347
58a44ecb AD	348	$img = $doc->createElement('img');
	349	$img->setAttribute("src", "https://i.gyazo.com/$img_id.jpg");
	350
	351	$br = $doc->createElement('br');
	352	$entry->parentNode->insertBefore($img, $entry);
	353	$entry->parentNode->insertBefore($br, $entry);
	354
	355	$found = true;
	356	}
6322fc68 AD	357	}
	358
	359	// remove tiny thumbnails
	360	if ($entry->hasAttribute("src")) {
	361	if ($entry->parentNode && $entry->parentNode->parentNode) {
	362	$entry->parentNode->parentNode->removeChild($entry->parentNode);
	363	}
	364	}
	365	}
cc85704f	366
6322fc68 AD	367	return $found;
6322fc68 AD	368	}
b90c4468	369
6322fc68	370	function hook_article_filter($article) {
b90c4468	371
6322fc68 AD	372	if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
	373	$doc = new DOMDocument();
	374	@$doc->loadHTML($article["content"]);
	375	$xpath = new DOMXPath($doc);
99bb8b3b	376
582ff3cf AD	377	$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
582ff3cf AD	378
891b77f9	379	if ($this->host->get($this, "enable_content_dupcheck")) {
902b1ac7	380
891b77f9 AD	381	if ($content_link) {
	382	$content_href = db_escape_string($content_link->getAttribute("href"));
	383	$entry_guid = db_escape_string($article["guid_hashed"]);
	384	$owner_uid = $article["owner_uid"];
902b1ac7	385
891b77f9 AD	386	if (DB_TYPE == "pgsql") {
	387	$interval_qpart = "date_entered < NOW() - INTERVAL '1 day'";
	388	} else {
	389	$interval_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY)";
	390	}
902b1ac7	391
891b77f9 AD	392	$result = db_query("SELECT COUNT(id) AS cid
	393	FROM ttrss_entries, ttrss_user_entries WHERE
	394	ref_id = id AND
	395	$interval_qpart AND
	396	guid != '$entry_guid' AND
	397	owner_uid = '$owner_uid' AND
	398	content LIKE '%href=\"$content_href\">[link]%'");
902b1ac7	399
891b77f9 AD	400	if ($result) {
891b77f9 AD	401	$num_found = db_fetch_result($result, 0, "cid");
902b1ac7	402
891b77f9 AD	403	if ($num_found > 0) $article["force_catchup"] = true;
891b77f9 AD	404	}
902b1ac7	405	}
891b77f9	406	}
4f5204dd	407
4533b3ef	408	$found = $this->inline_stuff($article, $doc, $xpath);
b90c4468	409
6322fc68 AD	410	$node = $doc->getElementsByTagName('body')->item(0);
	411
	412	if ($node && $found) {
f3774b9d	413	$article["content"] = $doc->saveHTML($node);
e487e92d AD	414	} else if ($content_link) {
e487e92d AD	415	$article = $this->readability($article, $content_link->getAttribute("href"), $doc, $xpath);
6322fc68	416	}
cc85704f AD	417	}
	418
	419	return $article;
	420	}
106a3de9 AD	421
	422	function api_version() {
	423	return 2;
	424	}
	425
ec482d28 AD	426	private function handle_as_video($doc, $entry, $source_stream, $poster_url = false, $debug = false) {
	427
	428	_debug("handle_as_video: $source_stream", $debug);
5d429910 AD	429
	430	$video = $doc->createElement('video');
	431	$video->setAttribute("autoplay", "1");
5dcc7bf1	432	$video->setAttribute("controls", "1");
5d429910 AD	433	$video->setAttribute("loop", "1");
5d429910 AD	434
b8887ebb AD	435	if ($poster_url) $video->setAttribute("poster", $poster_url);
b8887ebb AD	436
5d429910 AD	437	$source = $doc->createElement('source');
	438	$source->setAttribute("src", $source_stream);
	439	$source->setAttribute("type", "video/mp4");
	440
	441	$video->appendChild($source);
	442
	443	$br = $doc->createElement('br');
	444	$entry->parentNode->insertBefore($video, $entry);
	445	$entry->parentNode->insertBefore($br, $entry);
	446
	447	$img = $doc->createElement('img');
	448	$img->setAttribute("src",
	449	"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
	450
	451	$entry->parentNode->insertBefore($img, $entry);
	452	}
ec482d28 AD	453
	454	function testurl() {
	455	$url = htmlspecialchars($_REQUEST["url"]);
	456
	457	header("Content-type: text/plain");
	458
	459	print "URL: $url\n";
	460
	461	$doc = new DOMDocument();
	462	@$doc->loadHTML("<html><body><a href=\"$url\">[link]</a></body>");
	463	$xpath = new DOMXPath($doc);
	464
e487e92d AD	465	$found = $this->inline_stuff([], $doc, $xpath, true);
	466
	467	print "Inline result: $found\n";
	468
	469	if (!$found) {
	470	print "\nReadability result:\n";
ec482d28	471
e487e92d	472	$article = $this->readability([], $url, $doc, $xpath, true);
ec482d28	473
e487e92d AD	474	print_r($article);
	475	} else {
	476	print "\nResulting HTML:\n";
ec482d28	477
e487e92d AD	478	print $doc->saveHTML();
e487e92d AD	479	}
ec482d28	480	}
90e45935 AD	481
	482	private function get_content_type($url, $useragent = SELF_USER_AGENT) {
	483	$content_type = false;
	484
	485	if (function_exists("curl_init") && !defined("NO_CURL")) {
	486	$ch = curl_init($url);
	487	curl_setopt($ch, CURLOPT_TIMEOUT, 5);
	488	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	489	curl_setopt($ch, CURLOPT_HEADER, true);
	490	curl_setopt($ch, CURLOPT_NOBODY, true);
	491	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
	492	curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
	493
21ce7d9e	494	@curl_exec($ch);
90e45935 AD	495	$content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
	496	}
	497
	498	return $content_type;
	499	}
e487e92d	500
8352d7c6	501	private function get_location($url, $useragent = SELF_USER_AGENT) {
	502	$location = false;
	503
	504	if (function_exists("curl_init") && !defined("NO_CURL")) {
	505	$ch = curl_init($url);
	506	curl_setopt($ch, CURLOPT_TIMEOUT, 5);
	507	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	508	curl_setopt($ch, CURLOPT_HEADER, true);
	509	curl_setopt($ch, CURLOPT_NOBODY, true);
	510	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
	511	curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
	512
	513	@curl_exec($ch);
	514	$location = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
	515	}
	516
	517	return $location;
	518	}
	519
21ce7d9e AD	520	/**
	521	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	522	*/
e487e92d AD	523	private function readability($article, $url, $doc, $xpath, $debug = false) {
	524
	525	if (!defined('NO_CURL') && function_exists("curl_init") && $this->host->get($this, "enable_readability") &&
	526	mb_strlen(strip_tags($article["content"])) <= 150) {
	527
	528	if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");
	529
	530	if ($url &&
	531	strpos($url, "twitter.com") === FALSE &&
	532	strpos($url, "youtube.com") === FALSE &&
	533	strpos($url, "reddit.com") === FALSE) {
	534
	535	/* link may lead to a huge video file or whatever, we need to check content type before trying to
	536	parse it which p much requires curl */
	537
	538	$useragent_compat = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";
	539
	540	$content_type = $this->get_content_type($url, $useragent_compat);
	541
	542	if ($content_type && strpos($content_type, "text/html") !== FALSE) {
	543
	544	$tmp = fetch_file_contents(array("url" => $url,
	545	"useragent" => $useragent_compat));
	546
	547	if ($debug) _debug("tmplen: " . mb_strlen($tmp));
	548
	549	if ($tmp && mb_strlen($tmp) < 1024 * 500) {
	550
	551	$r = new Readability($tmp, $url);
	552
	553	if ($r->init()) {
	554
	555	$tmpxpath = new DOMXPath($r->dom);
	556
	557	$entries = $tmpxpath->query('(//a[@href]\|//img[@src])');
	558
	559	foreach ($entries as $entry) {
	560	if ($entry->hasAttribute("href")) {
	561	$entry->setAttribute("href",
	562	rewrite_relative_url($url, $entry->getAttribute("href")));
	563
	564	}
	565
	566	if ($entry->hasAttribute("src")) {
	567	$entry->setAttribute("src",
	568	rewrite_relative_url($url, $entry->getAttribute("src")));
	569
	570	}
	571
	572	}
	573
	574	$article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
	575	}
	576	}
	577	}
	578	}
	579	}
	580
	581	return $article;
	582	}
cc85704f	583	}