plugins/af_redditimgur/init.php

   1 <?php
   2 class Af_RedditImgur extends Plugin {
   3         private $host;
   4
   5         function about() {
   6                 return array(1.0,
   7                         "Inline images (and other content) in Reddit RSS feeds",
   8                         "fox");
   9         }
  10
  11         function init($host) {
  12                 $this->host = $host;
  13
  14                 $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  15                 $host->add_hook($host::HOOK_PREFS_TAB, $this);
  16         }
  17
  18         function hook_prefs_tab($args) {
  19                 if ($args != "prefFeeds") return;
  20
  21                 print "<div id=\"af_redditimgur_prefs\" dojoType=\"dijit.layout.AccordionPane\" title=\"".__('af_redditimgur settings')."\">";
  22
  23                 $enable_readability = $this->host->get($this, "enable_readability");
  24                 $enable_readability_checked = $enable_readability ? "checked" : "";
  25
  26                 $enable_dupecheck = $this->host->get($this, "enable_dupecheck");
  27                 $enable_dupecheck_checked = $enable_dupecheck ? "checked" : "";
  28
  29                 print "<form dojoType=\"dijit.form.Form\">";
  30
  31                 print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
  32                         evt.preventDefault();
  33                         if (this.validate()) {
  34                                 console.log(dojo.objectToQuery(this.getValues()));
  35                                 new Ajax.Request('backend.php', {
  36                                         parameters: dojo.objectToQuery(this.getValues()),
  37                                         onComplete: function(transport) {
  38                                                 notify_info(transport.responseText);
  39                                         }
  40                                 });
  41                                 //this.reset();
  42                         }
  43                         </script>";
  44
  45                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
  46                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
  47                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_redditimgur\">";
  48
  49                 print "<h3>" . __("Global settings") . "</h3>";
  50
  51                 print_notice("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
  52                 print "<p/>";
  53
  54                 print "<input dojoType=\"dijit.form.CheckBox\" id=\"enable_readability\"
  55                         $enable_readability_checked name=\"enable_readability\">&nbsp;";
  56
  57                 print "<label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
  58
  59                 print "<br/>";
  60
  61                 print "<input dojoType=\"dijit.form.CheckBox\" id=\"enable_dupecheck\"
  62                         $enable_dupecheck_checked name=\"enable_dupecheck\">&nbsp;";
  63
  64                 print "<label for=\"enable_dupecheck\">" . __("Mark duplicates as read using content links") . "</label>";
  65
  66                 print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
  67                         __("Save")."</button>";
  68
  69                 print "</form>";
  70
  71                 print "</div>";
  72         }
  73
  74         function save() {
  75                 $enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]) == "true";
  76                 $enable_dupecheck = checkbox_to_sql_bool($_POST["enable_dupecheck"]) == "true";
  77
  78                 $this->host->set($this, "enable_readability", $enable_readability);
  79                 $this->host->set($this, "enable_dupecheck", $enable_dupecheck);
  80
  81                 echo __("Configuration saved");
  82         }
  83
  84         private function inline_stuff($article, &$doc, $xpath) {
  85
  86                 $entries = $xpath->query('(//a[@href]|//img[@src])');
  87
  88                 $found = false;
  89
  90                 foreach ($entries as $entry) {
  91                         if ($entry->hasAttribute("href")) {
  92
  93                                 $matches = array();
  94
  95                                 if (preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
  96                                         $entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
  97                                 }
  98
  99                                 if (preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
 100
 101                                         $tmp = fetch_file_contents($entry->getAttribute("href"));
 102
 103                                         if ($tmp) {
 104                                                 $tmpdoc = new DOMDocument();
 105                                                 @$tmpdoc->loadHTML($tmp);
 106
 107                                                 if ($tmpdoc) {
 108                                                         $tmpxpath = new DOMXPath($tmpdoc);
 109
 110                                                         $source_meta = $tmpxpath->query("//meta[@property='og:video']")->item(0);
 111                                                         $poster_meta = $tmpxpath->query("//meta[@property='og:image' and contains(@content,'thumbs.gfycat.com')]")->item(0);
 112
 113                                                         if ($source_meta) {
 114                                                                 $source_stream = $source_meta->getAttribute("content");
 115                                                                 $poster_url = false;
 116
 117                                                                 if ($source_stream) {
 118
 119                                                                         if ($poster_meta)
 120                                                                                 $poster_url = $poster_meta->getAttribute("content");
 121
 122                                                                         $this->handle_as_video($doc, $entry, $source_stream, $poster_url);
 123                                                                         $found = 1;
 124                                                                 }
 125                                                         }
 126                                                 }
 127                                         }
 128
 129                                 }
 130
 131                                 // imgur .gif -> .gifv
 132                                 if (preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
 133                                         $entry->setAttribute("href",
 134                                                 str_replace(".gif", ".gifv", $entry->getAttribute("href")));
 135                                 }
 136
 137                                 if (preg_match("/\.(gifv)$/i", $entry->getAttribute("href"))) {
 138
 139                                         $source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
 140
 141                                         if (strpos($source_stream, "i.imgur.com") !== FALSE)
 142                                                 $poster_url = str_replace(".mp4", "h.jpg", $source_stream);
 143
 144                                         $this->handle_as_video($doc, $entry, $source_stream, $poster_url);
 145
 146                                         $found = true;
 147                                 }
 148
 149                                 $matches = array();
 150                                 if (preg_match("/\.youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) ||
 151                                         preg_match("/\.youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
 152                                         preg_match("/\.youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
 153                                         preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
 154
 155                                         $vid_id = $matches[1];
 156
 157                                         $iframe = $doc->createElement("iframe");
 158                                         $iframe->setAttribute("class", "youtube-player");
 159                                         $iframe->setAttribute("type", "text/html");
 160                                         $iframe->setAttribute("width", "640");
 161                                         $iframe->setAttribute("height", "385");
 162                                         $iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
 163                                         $iframe->setAttribute("allowfullscreen", "1");
 164                                         $iframe->setAttribute("frameborder", "0");
 165
 166                                         $br = $doc->createElement('br');
 167                                         $entry->parentNode->insertBefore($iframe, $entry);
 168                                         $entry->parentNode->insertBefore($br, $entry);
 169
 170                                         $found = true;
 171                                 }
 172
 173                                 if (preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href"))) {
 174                                         $img = $doc->createElement('img');
 175                                         $img->setAttribute("src", $entry->getAttribute("href"));
 176
 177                                         $br = $doc->createElement('br');
 178                                         $entry->parentNode->insertBefore($img, $entry);
 179                                         $entry->parentNode->insertBefore($br, $entry);
 180
 181                                         $found = true;
 182                                 }
 183
 184                                 // linked albums & pages
 185
 186                                 if (preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches) ||
 187                                         preg_match("/^https?:\/\/imgur.com\/(a|album|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
 188
 189                                         $album_content = fetch_file_contents($entry->getAttribute("href"),
 190                                                 false, false, false, false, 10);
 191
 192                                         if ($album_content) {
 193                                                 $adoc = new DOMDocument();
 194                                                 @$adoc->loadHTML($album_content);
 195
 196                                                 if ($adoc) {
 197                                                         $axpath = new DOMXPath($adoc);
 198                                                         $aentries = $axpath->query("//meta[@property='og:image']");
 199                                                         $urls = array();
 200
 201                                                         foreach ($aentries as $aentry) {
 202
 203                                                                 $url = str_replace("?fb", "", $aentry->getAttribute("content"));
 204
 205                                                                 if (!in_array($url, $urls)) {
 206                                                                         $img = $doc->createElement('img');
 207                                                                         $img->setAttribute("src", $url);
 208                                                                         $entry->parentNode->insertBefore($doc->createElement('br'), $entry);
 209
 210                                                                         $br = $doc->createElement('br');
 211
 212                                                                         $entry->parentNode->insertBefore($img, $entry);
 213                                                                         $entry->parentNode->insertBefore($br, $entry);
 214
 215                                                                         array_push($urls, $url);
 216
 217                                                                         $found = true;
 218                                                                 }
 219                                                         }
 220                                                 }
 221                                         }
 222                                 }
 223                         }
 224
 225                         // remove tiny thumbnails
 226                         if ($entry->hasAttribute("src")) {
 227                                 if ($entry->parentNode && $entry->parentNode->parentNode) {
 228                                         $entry->parentNode->parentNode->removeChild($entry->parentNode);
 229                                 }
 230                         }
 231                 }
 232
 233                 return $found;
 234         }
 235
 236         function hook_article_filter($article) {
 237
 238                 if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
 239                         $doc = new DOMDocument();
 240                         @$doc->loadHTML($article["content"]);
 241                         $xpath = new DOMXPath($doc);
 242
 243                         $content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
 244
 245                         if ($content_link && $this->host->get($this, "enable_dupecheck")) {
 246
 247                                 if (DB_TYPE == "pgsql") {
 248                                         $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
 249                                 } else {
 250                                         $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
 251                                 }
 252
 253                                 $content_href = db_escape_string($content_link->getAttribute("href"));
 254                                 $owner_uid = $article["owner_uid"];
 255                                 $guid = db_escape_string($article["guid_hashed"]);
 256
 257                                 $result = db_query("SELECT id FROM ttrss_entries, ttrss_user_entries
 258                                         WHERE
 259                                                 content LIKE '%$content_href%' AND
 260                                                 $date_qpart AND
 261                                                 ref_id = id AND
 262                                                 owner_uid = $owner_uid
 263                                                 AND guid != '$guid'
 264                                         LIMIT 1");
 265
 266                                 if (db_num_rows($result) != 0) {
 267                                         $found = true;
 268                                         $article["force_catchup"] = true;
 269                                 }
 270                         }
 271
 272                         if (!$found) $found = $this->inline_stuff($article, $doc, $xpath);
 273
 274                         if (function_exists("curl_init") && !$found && $this->host->get($this, "enable_readability") &&
 275                                 mb_strlen(strip_tags($article["content"])) <= 150) {
 276
 277                                 if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");
 278
 279                                 if ($content_link &&
 280                                         strpos($content_link->getAttribute("href"), "twitter.com") === FALSE &&
 281                                         strpos($content_link->getAttribute("href"), "youtube.com") === FALSE &&
 282                                         strpos($content_link->getAttribute("href"), "reddit.com") === FALSE) {
 283
 284                                         /* link may lead to a huge video file or whatever, we need to check content type before trying to
 285                                         parse it which p much requires curl */
 286
 287                                         $ch = curl_init($content_link->getAttribute("href"));
 288                                         curl_setopt($ch, CURLOPT_TIMEOUT, 5);
 289                                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 290                                         curl_setopt($ch, CURLOPT_HEADER, true);
 291                                         curl_setopt($ch, CURLOPT_NOBODY, true);
 292                                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION,
 293                                                 !ini_get("safe_mode") && !ini_get("open_basedir"));
 294                                         curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
 295
 296                                         @$result = curl_exec($ch);
 297                                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 298
 299                                         if ($content_type && strpos($content_type, "text/html") !== FALSE) {
 300
 301                                                 $tmp = fetch_file_contents($content_link->getAttribute("href"));
 302
 303                                                 if ($tmp) {
 304                                                         $r = new Readability($tmp, $content_link->getAttribute("href"));
 305
 306                                                         if ($r->init()) {
 307
 308                                                                 $tmpxpath = new DOMXPath($r->dom);
 309
 310                                                                 $entries = $tmpxpath->query('(//a[@href]|//img[@src])');
 311
 312                                                                 foreach ($entries as $entry) {
 313                                                                         if ($entry->hasAttribute("href")) {
 314                                                                                 $entry->setAttribute("href",
 315                                                                                         rewrite_relative_url($content_link->getAttribute("href"), $entry->getAttribute("href")));
 316
 317                                                                         }
 318
 319                                                                         if ($entry->hasAttribute("src")) {
 320                                                                                 $entry->setAttribute("src",
 321                                                                                         rewrite_relative_url($content_link->getAttribute("href"), $entry->getAttribute("src")));
 322
 323                                                                         }
 324
 325                                                                 }
 326
 327                                                                 $article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
 328
 329                                                                 // prob not a very good idea (breaks wikipedia pages, etc) -
 330                                                                 // inliner currently is not really fit for any random web content
 331
 332                                                                 //$doc = new DOMDocument();
 333                                                                 //@$doc->loadHTML($article["content"]);
 334                                                                 //$xpath = new DOMXPath($doc);
 335                                                                 //$found = $this->inline_stuff($article, $doc, $xpath);
 336                                                         }
 337                                                 }
 338                                         }
 339                                 }
 340
 341                         }
 342
 343                         $node = $doc->getElementsByTagName('body')->item(0);
 344
 345                         if ($node && $found) {
 346                                 $article["content"] = $doc->saveXML($node);
 347                         }
 348                 }
 349
 350                 return $article;
 351         }
 352
 353         function api_version() {
 354                 return 2;
 355         }
 356
 357         private function handle_as_video($doc, $entry, $source_stream, $poster_url = false) {
 358
 359                 $video = $doc->createElement('video');
 360                 $video->setAttribute("autoplay", "1");
 361                 $video->setAttribute("controls", "1");
 362                 $video->setAttribute("loop", "1");
 363
 364                 if ($poster_url) $video->setAttribute("poster", $poster_url);
 365
 366                 $source = $doc->createElement('source');
 367                 $source->setAttribute("src", $source_stream);
 368                 $source->setAttribute("type", "video/mp4");
 369
 370                 $video->appendChild($source);
 371
 372                 $br = $doc->createElement('br');
 373                 $entry->parentNode->insertBefore($video, $entry);
 374                 $entry->parentNode->insertBefore($br, $entry);
 375
 376                 $img = $doc->createElement('img');
 377                 $img->setAttribute("src",
 378                         "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
 379
 380                 $entry->parentNode->insertBefore($img, $entry);
 381         }
 382 }
 383 ?>