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                 print "<form dojoType=\"dijit.form.Form\">";
  27
  28                 print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
  29                         evt.preventDefault();
  30                         if (this.validate()) {
  31                                 console.log(dojo.objectToQuery(this.getValues()));
  32                                 new Ajax.Request('backend.php', {
  33                                         parameters: dojo.objectToQuery(this.getValues()),
  34                                         onComplete: function(transport) {
  35                                                 notify_info(transport.responseText);
  36                                         }
  37                                 });
  38                                 //this.reset();
  39                         }
  40                         </script>";
  41
  42                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
  43                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
  44                 print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_redditimgur\">";
  45
  46                 print "<h3>" . __("Global settings") . "</h3>";
  47
  48                 print_notice("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
  49                 print "<p/>";
  50
  51                 print "<input dojoType=\"dijit.form.CheckBox\" id=\"enable_readability\"
  52                         $enable_readability_checked name=\"enable_readability\">&nbsp;";
  53
  54                 print "<label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
  55
  56                 print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
  57                         __("Save")."</button>";
  58
  59                 print "</form>";
  60
  61                 print "</div>";
  62         }
  63
  64         function save() {
  65                 $enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]) == "true";
  66
  67                 $this->host->set($this, "enable_readability", $enable_readability);
  68
  69                 echo __("Configuration saved");
  70         }
  71
  72         function hook_article_filter($article) {
  73
  74                 if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
  75                                 $doc = new DOMDocument();
  76                                 @$doc->loadHTML($article["content"]);
  77
  78                                 if ($doc) {
  79                                         $xpath = new DOMXPath($doc);
  80                                         $entries = $xpath->query('(//a[@href]|//img[@src])');
  81
  82                                         $found = false;
  83
  84                                         foreach ($entries as $entry) {
  85                                                 if ($entry->hasAttribute("href")) {
  86
  87                                                         $matches = array();
  88
  89                                                         if (preg_match("/https?:\/\/gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
  90
  91                                                                 $tmp = fetch_file_contents($entry->getAttribute("href"));
  92
  93                                                                 if ($tmp) {
  94                                                                         $tmpdoc = new DOMDocument();
  95                                                                         @$tmpdoc->loadHTML($tmp);
  96
  97                                                                         if ($tmpdoc) {
  98                                                                                 $tmpxpath = new DOMXPath($tmpdoc);
  99                                                                                 $source_meta = $tmpxpath->query("//meta[@property='og:video']")->item(0);
 100
 101                                                                                 if ($source_meta) {
 102                                                                                         $source_stream = $source_meta->getAttribute("content");
 103
 104                                                                                         if ($source_stream) {
 105                                                                                                 $this->handle_as_video($doc, $entry, $source_stream);
 106                                                                                                 $found = 1;
 107                                                                                         }
 108                                                                                 }
 109                                                                         }
 110                                                                 }
 111
 112                                                         }
 113
 114                                                         if (preg_match("/\.(gifv)$/i", $entry->getAttribute("href"))) {
 115
 116                                                                 /*$video = $doc->createElement('video');
 117                                                                 $video->setAttribute("autoplay", "1");
 118                                                                 $video->setAttribute("loop", "1");
 119
 120                                                                 $source = $doc->createElement('source');
 121                                                                 $source->setAttribute("src", str_replace(".gifv", ".mp4", $entry->getAttribute("href")));
 122                                                                 $source->setAttribute("type", "video/mp4");
 123
 124                                                                 $video->appendChild($source);
 125
 126                                                                 $br = $doc->createElement('br');
 127                                                                 $entry->parentNode->insertBefore($video, $entry);
 128                                                                 $entry->parentNode->insertBefore($br, $entry);
 129
 130                                                                 $img = $doc->createElement('img');
 131                                                                 $img->setAttribute("src",
 132                                                                         "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
 133
 134                                                                 $entry->parentNode->insertBefore($img, $entry);*/
 135
 136                                                                 $source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
 137                                                                 $this->handle_as_video($doc, $entry, $source_stream);
 138
 139                                                                 $found = true;
 140                                                         }
 141
 142                                                         $matches = array();
 143                                                         if (preg_match("/\/\/www\.youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) ||
 144                                                                 preg_match("/\/\/www\.youtube\.com\/watch?v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
 145                                                                 preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
 146
 147                                                                 $vid_id = $matches[1];
 148
 149                                                                 $iframe = $doc->createElement("iframe");
 150                                                                 $iframe->setAttribute("class", "youtube-player");
 151                                                                 $iframe->setAttribute("type", "text/html");
 152                                                                 $iframe->setAttribute("width", "640");
 153                                                                 $iframe->setAttribute("height", "385");
 154                                                                 $iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
 155                                                                 $iframe->setAttribute("allowfullscreen", "1");
 156                                                                 $iframe->setAttribute("frameborder", "0");
 157
 158                                                                 $br = $doc->createElement('br');
 159                                                                 $entry->parentNode->insertBefore($iframe, $entry);
 160                                                                 $entry->parentNode->insertBefore($br, $entry);
 161
 162                                                                 $found = true;
 163                                                         }
 164
 165                                                         if (preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href"))) {
 166                                                                 $img = $doc->createElement('img');
 167                                                                 $img->setAttribute("src", $entry->getAttribute("href"));
 168
 169                                                                 $br = $doc->createElement('br');
 170                                                                 $entry->parentNode->insertBefore($img, $entry);
 171                                                                 $entry->parentNode->insertBefore($br, $entry);
 172
 173                                                                 $found = true;
 174                                                         }
 175
 176                                                         // links to imgur pages
 177                                                         $matches = array();
 178                                                         if (preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
 179
 180                                                                 $token = $matches[2];
 181
 182                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
 183                                                                         false, false, false, false, 10);
 184
 185                                                                 if ($album_content && $token) {
 186                                                                         $adoc = new DOMDocument();
 187                                                                         @$adoc->loadHTML($album_content);
 188
 189                                                                         if ($adoc) {
 190                                                                                 $axpath = new DOMXPath($adoc);
 191                                                                                 $aentries = $axpath->query('(//img[@src])');
 192
 193                                                                                 foreach ($aentries as $aentry) {
 194                                                                                         if (preg_match("/\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
 195                                                                                                 $img = $doc->createElement('img');
 196                                                                                                 $img->setAttribute("src", $aentry->getAttribute("src"));
 197
 198                                                                                                 $br = $doc->createElement('br');
 199
 200                                                                                                 $entry->parentNode->insertBefore($img, $entry);
 201                                                                                                 $entry->parentNode->insertBefore($br, $entry);
 202
 203                                                                                                 $found = true;
 204
 205                                                                                                 break;
 206                                                                                         }
 207                                                                                 }
 208                                                                         }
 209                                                                 }
 210                                                         }
 211
 212                                                         // linked albums, ffs
 213                                                         if (preg_match("/^https?:\/\/imgur.com\/(a|album|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
 214
 215                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
 216                                                                         false, false, false, false, 10);
 217
 218                                                                 if ($album_content) {
 219                                                                         $adoc = new DOMDocument();
 220                                                                         @$adoc->loadHTML($album_content);
 221
 222                                                                         if ($adoc) {
 223                                                                                 $axpath = new DOMXPath($adoc);
 224                                                                                 $aentries = $axpath->query("//meta[@property='og:image']");
 225                                                                                 $urls = array();
 226
 227                                                                                 foreach ($aentries as $aentry) {
 228
 229                                                                                         if (!in_array($aentry->getAttribute("content"), $urls)) {
 230                                                                                                 $img = $doc->createElement('img');
 231                                                                                                 $img->setAttribute("src", $aentry->getAttribute("content"));
 232                                                                                                 $entry->parentNode->insertBefore($doc->createElement('br'), $entry);
 233
 234                                                                                                 $br = $doc->createElement('br');
 235
 236                                                                                                 $entry->parentNode->insertBefore($img, $entry);
 237                                                                                                 $entry->parentNode->insertBefore($br, $entry);
 238
 239                                                                                                 array_push($urls, $aentry->getAttribute("content"));
 240
 241                                                                                                 $found = true;
 242                                                                                         }
 243                                                                                 }
 244                                                                         }
 245                                                                 }
 246                                                         }
 247                                                 }
 248
 249                                                 // remove tiny thumbnails
 250                                                 if ($entry->hasAttribute("src")) {
 251                                                         if ($entry->parentNode && $entry->parentNode->parentNode) {
 252                                                                 $entry->parentNode->parentNode->removeChild($entry->parentNode);
 253                                                         }
 254                                                 }
 255                                         }
 256
 257                                         if (!$found && $this->host->get($this, "enable_readability") && mb_strlen(strip_tags($article["content"])) <= 150) {
 258                                                 require_once(__DIR__ . "/classes/Readability.php");
 259
 260                                                 $content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
 261
 262                                                 if ($content_link) {
 263                                                         $tmp = fetch_file_contents($content_link->getAttribute("href"));
 264
 265                                                         if ($tmp) {
 266                                                                 $r = new Readability($tmp, $content_link->getAttribute("href"));
 267
 268                                                                 if ($r->init()) {
 269                                                                         $article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
 270
 271                                                                 }
 272                                                         }
 273
 274                                                 }
 275
 276                                         }
 277
 278                                         $node = $doc->getElementsByTagName('body')->item(0);
 279
 280                                         if ($node && $found) {
 281                                                 $article["content"] = $doc->saveXML($node);
 282                                         }
 283                                 }
 284                 }
 285
 286                 return $article;
 287         }
 288
 289         function api_version() {
 290                 return 2;
 291         }
 292
 293         private function handle_as_video($doc, $entry, $source_stream) {
 294
 295                 $video = $doc->createElement('video');
 296                 $video->setAttribute("autoplay", "1");
 297                 $video->setAttribute("controls", "1");
 298                 $video->setAttribute("loop", "1");
 299
 300                 $source = $doc->createElement('source');
 301                 $source->setAttribute("src", $source_stream);
 302                 $source->setAttribute("type", "video/mp4");
 303
 304                 $video->appendChild($source);
 305
 306                 $br = $doc->createElement('br');
 307                 $entry->parentNode->insertBefore($video, $entry);
 308                 $entry->parentNode->insertBefore($br, $entry);
 309
 310                 $img = $doc->createElement('img');
 311                 $img->setAttribute("src",
 312                         "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
 313
 314                 $entry->parentNode->insertBefore($img, $entry);
 315         }
 316 }
 317 ?>