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

<?php
use andreskrey\Readability\Readability;
use andreskrey\Readability\Configuration;

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");

		if (version_compare(PHP_VERSION, '5.6.0', '<')) {
			print_error("Readability requires PHP version 5.6.");
		}

		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_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])");

		$found = false;
		//$debug = 1;

		foreach ($entries as $entry) {
			if ($entry->hasAttribute("href") && strpos($entry->getAttribute("href"), "reddit.com") === FALSE) {

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

				$matches = array();

				if (!$found && 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;
				}

				// 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;
				}

				// let's try meta properties
				if (!$found) {
					_debug("looking for meta og:image", $debug);

					$content = fetch_file_contents(["url" => $entry->getAttribute("href"),
						"http_accept" => "text/*"]);

					if ($content) {
						$cdoc = new DOMDocument();

						if (@$cdoc->loadHTML($content)) {
							$cxpath = new DOMXPath($cdoc);

							$og_image = $cxpath->query("//meta[@property='og:image']")->item(0);

							if ($og_image) {

								$og_src = $og_image->getAttribute("content");

								if ($og_src) {
									$img = $doc->createElement('img');
									$img->setAttribute("src", $og_src);

									$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) {

			// do not try to embed posts linking back to other reddit posts
			// readability.php requires PHP 5.6
			if ($url &&	strpos($url, "reddit.com") === FALSE && version_compare(PHP_VERSION, '5.6.0', '>=')) {

				/* 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(["url" => $url,
						"useragent" => $useragent_compat,
						"http_accept" => "text/html"]);

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

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

						$r = new Readability(new Configuration());

						try {
							if ($r->parse($tmp)) {

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

								$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->getContent() . "<hr/>" . $article["content"];
							}
						} catch (Exception $e) {
							//
						}
					}
				}
			}
		}

		return $article;
	}
}
Commit	Line	Data
cc85704f	1	<?php
b22766fc AD	2	use andreskrey\Readability\Readability;
	3	use andreskrey\Readability\Configuration;
	4
0862a602	5	class Af_RedditImgur extends Plugin {
11d1a8a6 AD	6
11d1a8a6 AD	7	/* @var PluginHost $host */
19c73507 AD	8	private $host;
19c73507 AD	9
d2a421e3	10	function about() {
7a866114	11	return array(1.0,
a95fb169	12	"Inline images (and other content) in Reddit RSS feeds",
7a866114 AD	13	"fox");
	14	}
	15
41245888 AD	16	function flags() {
	17	return array("needs_curl" => true);
	18	}
	19
d2a421e3	20	function init($host) {
19c73507 AD	21	$this->host = $host;
	22
	23	$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
b90c4468 AD	24	$host->add_hook($host::HOOK_PREFS_TAB, $this);
	25	}
	26
	27	function hook_prefs_tab($args) {
	28	if ($args != "prefFeeds") return;
	29
dc8bd8a6	30	print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Reddit content settings (af_redditimgur)')."\">";
b90c4468 AD	31
b90c4468 AD	32	$enable_readability = $this->host->get($this, "enable_readability");
891b77f9	33	$enable_content_dupcheck = $this->host->get($this, "enable_content_dupcheck");
8788698b	34
6d95e535 AD	35	if (version_compare(PHP_VERSION, '5.6.0', '<')) {
	36	print_error("Readability requires PHP version 5.6.");
	37	}
	38
b90c4468 AD	39	print "<form dojoType=\"dijit.form.Form\">";
	40
	41	print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
	42	evt.preventDefault();
	43	if (this.validate()) {
	44	console.log(dojo.objectToQuery(this.getValues()));
	45	new Ajax.Request('backend.php', {
	46	parameters: dojo.objectToQuery(this.getValues()),
	47	onComplete: function(transport) {
	48	notify_info(transport.responseText);
	49	}
	50	});
	51	//this.reset();
	52	}
	53	</script>";
	54
328118d1 AD	55	print_hidden("op", "pluginhandler");
	56	print_hidden("method", "save");
	57	print_hidden("plugin", "af_redditimgur");
b90c4468	58
dc8bd8a6 AD	59	print_checkbox("enable_readability", $enable_readability);
dc8bd8a6 AD	60	print " <label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
b90c4468	61
891b77f9	62	print "<br/>";
8788698b	63
dc8bd8a6 AD	64	print_checkbox("enable_content_dupcheck", $enable_content_dupcheck);
	65	print " <label for=\"enable_content_dupcheck\">" . __("Enable additional duplicate checking") . "</label>";
	66	print "<p>"; print_button("submit", __("Save"));
b90c4468 AD	67	print "</form>";
	68
	69	print "</div>";
	70	}
	71
	72	function save() {
da9ea57d AD	73	$enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]);
da9ea57d AD	74	$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]);
4533b3ef	75
891b77f9 AD	76	$this->host->set($this, "enable_readability", $enable_readability, false);
891b77f9 AD	77	$this->host->set($this, "enable_content_dupcheck", $enable_content_dupcheck);
b90c4468 AD	78
b90c4468 AD	79	echo __("Configuration saved");
19c73507 AD	80	}
19c73507 AD	81
21ce7d9e AD	82	/**
	83	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	84	*/
ec482d28	85	private function inline_stuff($article, &$doc, $xpath, $debug = false) {
cc85704f	86
6322fc68	87	$entries = $xpath->query('(//a[@href]\|//img[@src])');
06a19166	88	$img_entries = $xpath->query("(//img[@src])");
cc85704f	89
6322fc68	90	$found = false;
b70c3daf	91	//$debug = 1;
ce7d5e87	92
6322fc68	93	foreach ($entries as $entry) {
b70c3daf	94	if ($entry->hasAttribute("href") && strpos($entry->getAttribute("href"), "reddit.com") === FALSE) {
299aeb30	95
ec482d28 AD	96	_debug("processing href: " . $entry->getAttribute("href"), $debug);
ec482d28 AD	97
6322fc68	98	$matches = array();
5d429910	99
b70c3daf	100	if (!$found && preg_match("/^https?:\/\/twitter.com\/(.?)\/status\/(.)/", $entry->getAttribute("href"), $matches)) {
8788698b AD	101	_debug("handling as twitter: " . $matches[1] . " " . $matches[2], $debug);
	102
	103	$oembed_result = fetch_file_contents("https://publish.twitter.com/oembed?url=" . urlencode($entry->getAttribute("href")));
	104
	105	if ($oembed_result) {
	106	$oembed_result = json_decode($oembed_result, true);
	107
	108	if ($oembed_result && isset($oembed_result["html"])) {
	109
	110	$tmp = new DOMDocument();
48007463	111	if ($tmp->loadHTML('<?xml encoding="utf-8" ?>' . $oembed_result["html"])) {
8788698b AD	112	$p = $doc->createElement("p");
	113
	114	$p->appendChild($doc->importNode(
	115	$tmp->getElementsByTagName("blockquote")->item(0), TRUE));
	116
	117	$br = $doc->createElement('br');
	118	$entry->parentNode->insertBefore($p, $entry);
	119	$entry->parentNode->insertBefore($br, $entry);
	120
	121	$found = 1;
	122	}
	123	}
	124	}
	125	}
	126
43db5b99	127	if (!$found && preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5f297a5c AD	128	$entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
	129	}
	130
43db5b99	131	if (!$found && preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
5d429910	132
ec482d28 AD	133	_debug("Handling as Gfycat", $debug);
ec482d28 AD	134
6322fc68	135	$tmp = fetch_file_contents($entry->getAttribute("href"));
5d429910	136
6322fc68 AD	137	if ($tmp) {
6322fc68 AD	138	$tmpdoc = new DOMDocument();
5d429910	139
58a44ecb	140	if (@$tmpdoc->loadHTML($tmp)) {
6322fc68	141	$tmpxpath = new DOMXPath($tmpdoc);
b8887ebb	142
46506d3f AD	143	$source_node = $tmpxpath->query("//video[contains(@class,'share-video')]//source[contains(@src, '.mp4')]")->item(0);
46506d3f AD	144	$poster_node = $tmpxpath->query("//video[contains(@class,'share-video') and @poster]")->item(0);
5d429910	145
46506d3f AD	146	if ($source_node && $poster_node) {
	147	$source_stream = $source_node->getAttribute("src");
	148	$poster_url = $poster_node->getAttribute("poster");
5d429910	149
46506d3f AD	150	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
46506d3f AD	151	$found = 1;
5d429910	152	}
6322fc68 AD	153	}
6322fc68 AD	154	}
6322fc68	155	}
98e20510	156
06a19166 AD	157	if (!$found && preg_match("/https?:\/\/v\.redd\.it\/(.*)$/i", $entry->getAttribute("href"), $matches)) {
	158
	159	_debug("Handling as reddit inline video", $debug);
	160
	161	$img = $img_entries->item(0);
	162
	163	if ($img) {
	164	$poster_url = $img->getAttribute("src");
	165	} else {
	166	$poster_url = false;
	167	}
	168
8352d7c6	169	// Get original article URL from v.redd.it redirects
	170	$source_article_url = $this->get_location($matches[0]);
	171	_debug("Resolved ".$matches[0]." to ".$source_article_url, $debug);
	172
81d83a68	173	$source_stream = false;
8352d7c6	174
	175	if ($source_article_url) {
	176	$j = json_decode(fetch_file_contents($source_article_url.".json"), true);
	177
	178	if ($j) {
	179	foreach ($j as $listing) {
	180	foreach ($listing["data"]["children"] as $child) {
	181	if ($child["data"]["url"] == $matches[0]) {
	182	try {
	183	$source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
	184	}
	185	catch (Exception $e) {
	186	}
	187	break 2;
81d83a68	188	}
81d83a68	189	}
	190	}
	191	}
	192	}
	193
	194	if (!$source_stream) {
	195	$source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
	196	}
06a19166 AD	197
	198	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	199	$found = 1;
	200	}
	201
60e97d9e AD	202	if (!$found && preg_match("/https?:\/\/(www\.)?streamable.com\//i", $entry->getAttribute("href"))) {
	203
	204	_debug("Handling as Streamable", $debug);
	205
	206	$tmp = fetch_file_contents($entry->getAttribute("href"));
	207
	208	if ($tmp) {
	209	$tmpdoc = new DOMDocument();
	210
	211	if (@$tmpdoc->loadHTML($tmp)) {
	212	$tmpxpath = new DOMXPath($tmpdoc);
	213
	214	$source_node = $tmpxpath->query("//video[contains(@class,'video-player-tag')]//source[contains(@src, '.mp4')]")->item(0);
	215	$poster_node = $tmpxpath->query("//video[contains(@class,'video-player-tag') and @poster]")->item(0);
	216
	217	if ($source_node && $poster_node) {
	218	$source_stream = $source_node->getAttribute("src");
	219	$poster_url = $poster_node->getAttribute("poster");
	220
	221	$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
	222	$found = 1;
	223	}
	224	}
	225	}
	226	}
	227
5f297a5c	228	// imgur .gif -> .gifv
43db5b99	229	if (!$found && preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
ec482d28 AD	230	_debug("Handling as imgur gif (->gifv)", $debug);
ec482d28 AD	231
5f297a5c AD	232	$entry->setAttribute("href",
	233	str_replace(".gif", ".gifv", $entry->getAttribute("href")));
	234	}
	235
8c395462	236	if (!$found && preg_match("/\.(gifv\|mp4)$/i", $entry->getAttribute("href"))) {
ec482d28	237	_debug("Handling as imgur gifv", $debug);
5d429910	238
6322fc68	239	$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
b8887ebb	240
49048482	241	if (strpos($source_stream, "imgur.com") !== FALSE)
b8887ebb AD	242	$poster_url = str_replace(".mp4", "h.jpg", $source_stream);
b8887ebb AD	243
ec482d28	244	$this->handle_as_video($doc, $entry, $source_stream, $poster_url, $debug);
98e20510	245
6322fc68 AD	246	$found = true;
6322fc68 AD	247	}
9875d717	248
6322fc68	249	$matches = array();
43db5b99	250	if (!$found && preg_match("/youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	251	preg_match("/youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
0a361964 AD	252	preg_match("/youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) \|\|
6322fc68	253	preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
3b9ca4e6	254
6322fc68	255	$vid_id = $matches[1];
3b9ca4e6	256
ec482d28 AD	257	_debug("Handling as youtube: $vid_id", $debug);
ec482d28 AD	258
6322fc68 AD	259	$iframe = $doc->createElement("iframe");
	260	$iframe->setAttribute("class", "youtube-player");
	261	$iframe->setAttribute("type", "text/html");
	262	$iframe->setAttribute("width", "640");
	263	$iframe->setAttribute("height", "385");
	264	$iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
	265	$iframe->setAttribute("allowfullscreen", "1");
	266	$iframe->setAttribute("frameborder", "0");
3b9ca4e6	267
6322fc68 AD	268	$br = $doc->createElement('br');
	269	$entry->parentNode->insertBefore($iframe, $entry);
	270	$entry->parentNode->insertBefore($br, $entry);
3b9ca4e6	271
6322fc68 AD	272	$found = true;
6322fc68 AD	273	}
3b9ca4e6	274
43db5b99	275	if (!$found && preg_match("/\.(jpg\|jpeg\|gif\|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href")) \|\|
90e45935 AD	276	mb_strpos($entry->getAttribute("href"), "i.reddituploads.com") !== FALSE \|\|
90e45935 AD	277	mb_strpos($this->get_content_type($entry->getAttribute("href")), "image/") !== FALSE) {
eb95d1bd	278
ec482d28 AD	279	_debug("Handling as a picture", $debug);
ec482d28 AD	280
6322fc68 AD	281	$img = $doc->createElement('img');
6322fc68 AD	282	$img->setAttribute("src", $entry->getAttribute("href"));
cc85704f	283
6322fc68 AD	284	$br = $doc->createElement('br');
	285	$entry->parentNode->insertBefore($img, $entry);
	286	$entry->parentNode->insertBefore($br, $entry);
ce7d5e87	287
6322fc68 AD	288	$found = true;
6322fc68 AD	289	}
ce7d5e87	290
58a44ecb	291	// wtf is this even
43db5b99	292	if (!$found && preg_match("/^https?:\/\/gyazo\.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
58a44ecb AD	293	$img_id = $matches[1];
58a44ecb AD	294
ec482d28 AD	295	_debug("handling as gyazo: $img_id", $debug);
ec482d28 AD	296
58a44ecb AD	297	$img = $doc->createElement('img');
	298	$img->setAttribute("src", "https://i.gyazo.com/$img_id.jpg");
	299
	300	$br = $doc->createElement('br');
	301	$entry->parentNode->insertBefore($img, $entry);
	302	$entry->parentNode->insertBefore($br, $entry);
	303
	304	$found = true;
	305	}
b70c3daf AD	306
	307	// let's try meta properties
	308	if (!$found) {
	309	_debug("looking for meta og:image", $debug);
	310
	311	$content = fetch_file_contents(["url" => $entry->getAttribute("href"),
	312	"http_accept" => "text/*"]);
	313
	314	if ($content) {
	315	$cdoc = new DOMDocument();
	316
	317	if (@$cdoc->loadHTML($content)) {
	318	$cxpath = new DOMXPath($cdoc);
	319
	320	$og_image = $cxpath->query("//meta[@property='og:image']")->item(0);
	321
	322	if ($og_image) {
	323
	324	$og_src = $og_image->getAttribute("content");
	325
	326	if ($og_src) {
	327	$img = $doc->createElement('img');
	328	$img->setAttribute("src", $og_src);
	329
	330	$br = $doc->createElement('br');
	331	$entry->parentNode->insertBefore($img, $entry);
	332	$entry->parentNode->insertBefore($br, $entry);
	333
	334	$found = true;
	335	}
	336	}
	337	}
	338	}
	339	}
	340
6322fc68 AD	341	}
	342
	343	// remove tiny thumbnails
	344	if ($entry->hasAttribute("src")) {
	345	if ($entry->parentNode && $entry->parentNode->parentNode) {
	346	$entry->parentNode->parentNode->removeChild($entry->parentNode);
	347	}
	348	}
	349	}
cc85704f	350
6322fc68 AD	351	return $found;
6322fc68 AD	352	}
b90c4468	353
6322fc68	354	function hook_article_filter($article) {
b90c4468	355
6322fc68 AD	356	if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
	357	$doc = new DOMDocument();
	358	@$doc->loadHTML($article["content"]);
	359	$xpath = new DOMXPath($doc);
99bb8b3b	360
582ff3cf AD	361	$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
582ff3cf AD	362
891b77f9	363	if ($this->host->get($this, "enable_content_dupcheck")) {
902b1ac7	364
891b77f9	365	if ($content_link) {
11d1a8a6 AD	366	$content_href = $content_link->getAttribute("href");
11d1a8a6 AD	367	$entry_guid = $article["guid_hashed"];
891b77f9	368	$owner_uid = $article["owner_uid"];
902b1ac7	369
891b77f9 AD	370	if (DB_TYPE == "pgsql") {
	371	$interval_qpart = "date_entered < NOW() - INTERVAL '1 day'";
	372	} else {
	373	$interval_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY)";
	374	}
902b1ac7	375
11d1a8a6	376	$sth = $this->pdo->prepare("SELECT COUNT(id) AS cid
891b77f9 AD	377	FROM ttrss_entries, ttrss_user_entries WHERE
	378	ref_id = id AND
	379	$interval_qpart AND
11d1a8a6 AD	380	guid != ? AND
	381	owner_uid = ? AND
	382	content LIKE ?");
	383
	384	$sth->execute([$entry_guid, $owner_uid, "%href=\"$content_href\">[link]%"]);
902b1ac7	385
11d1a8a6 AD	386	if ($row = $sth->fetch()) {
11d1a8a6 AD	387	$num_found = $row['cid'];
902b1ac7	388
891b77f9 AD	389	if ($num_found > 0) $article["force_catchup"] = true;
891b77f9 AD	390	}
902b1ac7	391	}
891b77f9	392	}
4f5204dd	393
4533b3ef	394	$found = $this->inline_stuff($article, $doc, $xpath);
b90c4468	395
6322fc68 AD	396	$node = $doc->getElementsByTagName('body')->item(0);
	397
	398	if ($node && $found) {
f3774b9d	399	$article["content"] = $doc->saveHTML($node);
e487e92d AD	400	} else if ($content_link) {
e487e92d AD	401	$article = $this->readability($article, $content_link->getAttribute("href"), $doc, $xpath);
6322fc68	402	}
cc85704f AD	403	}
	404
	405	return $article;
	406	}
106a3de9 AD	407
	408	function api_version() {
	409	return 2;
	410	}
	411
ec482d28 AD	412	private function handle_as_video($doc, $entry, $source_stream, $poster_url = false, $debug = false) {
	413
	414	_debug("handle_as_video: $source_stream", $debug);
5d429910 AD	415
	416	$video = $doc->createElement('video');
	417	$video->setAttribute("autoplay", "1");
5dcc7bf1	418	$video->setAttribute("controls", "1");
5d429910 AD	419	$video->setAttribute("loop", "1");
5d429910 AD	420
b8887ebb AD	421	if ($poster_url) $video->setAttribute("poster", $poster_url);
b8887ebb AD	422
5d429910 AD	423	$source = $doc->createElement('source');
	424	$source->setAttribute("src", $source_stream);
	425	$source->setAttribute("type", "video/mp4");
	426
	427	$video->appendChild($source);
	428
	429	$br = $doc->createElement('br');
	430	$entry->parentNode->insertBefore($video, $entry);
	431	$entry->parentNode->insertBefore($br, $entry);
	432
	433	$img = $doc->createElement('img');
	434	$img->setAttribute("src",
	435	"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
	436
	437	$entry->parentNode->insertBefore($img, $entry);
	438	}
ec482d28 AD	439
	440	function testurl() {
	441	$url = htmlspecialchars($_REQUEST["url"]);
	442
	443	header("Content-type: text/plain");
	444
	445	print "URL: $url\n";
	446
	447	$doc = new DOMDocument();
	448	@$doc->loadHTML("<html><body><a href=\"$url\">[link]</a></body>");
	449	$xpath = new DOMXPath($doc);
	450
e487e92d AD	451	$found = $this->inline_stuff([], $doc, $xpath, true);
	452
	453	print "Inline result: $found\n";
	454
	455	if (!$found) {
	456	print "\nReadability result:\n";
ec482d28	457
e487e92d	458	$article = $this->readability([], $url, $doc, $xpath, true);
ec482d28	459
e487e92d AD	460	print_r($article);
	461	} else {
	462	print "\nResulting HTML:\n";
ec482d28	463
e487e92d AD	464	print $doc->saveHTML();
e487e92d AD	465	}
ec482d28	466	}
90e45935	467
b4b5236e	468	private function get_header($url, $useragent = SELF_USER_AGENT, $header) {
b4b5236e	469	$ret = false;
90e45935 AD	470
	471	if (function_exists("curl_init") && !defined("NO_CURL")) {
	472	$ch = curl_init($url);
	473	curl_setopt($ch, CURLOPT_TIMEOUT, 5);
	474	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	475	curl_setopt($ch, CURLOPT_HEADER, true);
	476	curl_setopt($ch, CURLOPT_NOBODY, true);
	477	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
	478	curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
	479
21ce7d9e	480	@curl_exec($ch);
b4b5236e	481	$ret = curl_getinfo($ch, $header);
90e45935 AD	482	}
90e45935 AD	483
b4b5236e	484	return $ret;
90e45935	485	}
e487e92d	486
b4b5236e	487	private function get_content_type($url, $useragent = SELF_USER_AGENT) {
	488	return $this->get_header($url, $useragent, CURLINFO_CONTENT_TYPE);
	489	}
8352d7c6	490
b4b5236e	491	private function get_location($url, $useragent = SELF_USER_AGENT) {
b4b5236e	492	return $this->get_header($url, $useragent, CURLINFO_EFFECTIVE_URL);
8352d7c6	493	}
8352d7c6	494
21ce7d9e AD	495	/**
	496	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	497	*/
e487e92d AD	498	private function readability($article, $url, $doc, $xpath, $debug = false) {
	499
	500	if (!defined('NO_CURL') && function_exists("curl_init") && $this->host->get($this, "enable_readability") &&
	501	mb_strlen(strip_tags($article["content"])) <= 150) {
	502
b22766fc	503	// do not try to embed posts linking back to other reddit posts
6d95e535 AD	504	// readability.php requires PHP 5.6
6d95e535 AD	505	if ($url && strpos($url, "reddit.com") === FALSE && version_compare(PHP_VERSION, '5.6.0', '>=')) {
e487e92d AD	506
	507	/* link may lead to a huge video file or whatever, we need to check content type before trying to
	508	parse it which p much requires curl */
	509
	510	$useragent_compat = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";
	511
	512	$content_type = $this->get_content_type($url, $useragent_compat);
	513
	514	if ($content_type && strpos($content_type, "text/html") !== FALSE) {
	515
b70c3daf AD	516	$tmp = fetch_file_contents(["url" => $url,
	517	"useragent" => $useragent_compat,
	518	"http_accept" => "text/html"]);
e487e92d AD	519
	520	if ($debug) _debug("tmplen: " . mb_strlen($tmp));
	521
	522	if ($tmp && mb_strlen($tmp) < 1024 * 500) {
	523
b22766fc	524	$r = new Readability(new Configuration());
e487e92d	525
b22766fc AD	526	try {
b22766fc AD	527	if ($r->parse($tmp)) {
e487e92d	528
b22766fc	529	$tmpxpath = new DOMXPath($r->getDOMDocument());
e487e92d	530
b22766fc	531	$entries = $tmpxpath->query('(//a[@href]\|//img[@src])');
e487e92d	532
b22766fc AD	533	foreach ($entries as $entry) {
	534	if ($entry->hasAttribute("href")) {
	535	$entry->setAttribute("href",
	536	rewrite_relative_url($url, $entry->getAttribute("href")));
e487e92d	537
b22766fc	538	}
e487e92d	539
b22766fc AD	540	if ($entry->hasAttribute("src")) {
	541	$entry->setAttribute("src",
	542	rewrite_relative_url($url, $entry->getAttribute("src")));
	543
	544	}
e487e92d AD	545
	546	}
	547
b22766fc	548	$article["content"] = $r->getContent() . "<hr/>" . $article["content"];
e487e92d	549	}
c925f4e3	550	} catch (Exception $e) {
b22766fc	551	//
e487e92d AD	552	}
	553	}
	554	}
	555	}
	556	}
	557
	558	return $article;
	559	}
cc85704f	560	}