plugins/af_comics/init.php

   1 <?php
   2 class Af_Comics extends Plugin {
   3
   4         private $host;
   5         private $filters = array();
   6
   7         function about() {
   8                 return array(2.0,
   9                         "Fixes RSS feeds of assorted comic strips",
  10                         "fox");
  11         }
  12
  13         function init($host) {
  14                 $this->host = $host;
  15
  16                 $host->add_hook($host::HOOK_FETCH_FEED, $this);
  17                 $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  18                 $host->add_hook($host::HOOK_PREFS_TAB, $this);
  19
  20                 require_once __DIR__ . "/filter_base.php";
  21
  22                 $filters = glob(__DIR__ . "/filters/*.php");
  23
  24                 foreach ($filters as $file) {
  25                         require_once $file;
  26                         $filter_name = preg_replace("/\..*$/", "", basename($file));
  27
  28                         $filter = new $filter_name();
  29
  30                         if (is_subclass_of($filter, "Af_ComicFilter")) {
  31                                 array_push($this->filters, $filter);
  32                         }
  33                 }
  34
  35         }
  36
  37         function hook_prefs_tab($args) {
  38                 if ($args != "prefPrefs") return;
  39
  40                 print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Feeds supported by af_comics')."\">";
  41
  42                 print "<p>" . __("The following comics are currently supported:") . "</p>";
  43
  44                 $comics = array("GoComics");
  45
  46                 foreach ($this->filters as $f) {
  47                         foreach ($f->supported() as $comic) {
  48                                 array_push($comics, $comic);
  49                         }
  50                 }
  51
  52                 asort($comics);
  53
  54                 print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
  55                 foreach ($comics as $comic) {
  56                         print "<li>$comic</li>";
  57                 }
  58                 print "</ul>";
  59
  60                 print "<p>".__('GoComics requires a specific URL to workaround their lack of feed support: <code>http://feeds.feedburner.com/uclick/<em>comic_name</em></code> (e.g. <code>http://www.gocomics.com/garfield</code> uses <code>http://feeds.feedburner.com/uclick/garfield</code>).')."</p>";
  61
  62                 print "</div>";
  63         }
  64
  65         function hook_article_filter($article) {
  66                 $owner_uid = $article["owner_uid"];
  67
  68                 foreach ($this->filters as $f) {
  69                         if ($f->process($article))
  70                                 break;
  71                 }
  72
  73                 return $article;
  74
  75         }
  76
  77         // GoComics dropped feed support so it needs to be handled when fetching the feed.
  78         function hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass) {
  79                 if ($auth_login || $auth_pass)
  80                         return $feed_data;
  81
  82                 if (preg_match('#^https?://feeds.feedburner.com/uclick/([-a-z]+)#', $fetch_url, $comic)) {
  83                         $site_url = 'http://www.gocomics.com/' . $comic[1];
  84
  85                         $article_link = $site_url . date('/Y/m/d');
  86
  87                         $body = fetch_file_contents(array('url' => $article_link, 'type' => 'text/html', 'followlocation' => false));
  88
  89                         require_once 'lib/MiniTemplator.class.php';
  90
  91                         $feed_title = htmlspecialchars($comic[1]);
  92                         $site_url = htmlspecialchars($site_url);
  93                         $article_link = htmlspecialchars($article_link);
  94
  95                         $tpl = new MiniTemplator();
  96
  97                         $tpl->readTemplateFromFile('templates/generated_feed.txt');
  98
  99                         $tpl->setVariable('FEED_TITLE', $feed_title, true);
 100                         $tpl->setVariable('VERSION', VERSION, true);
 101                         $tpl->setVariable('FEED_URL', htmlspecialchars($fetch_url), true);
 102                         $tpl->setVariable('SELF_URL', $site_url, true);
 103
 104                         $tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c'), true);
 105                         $tpl->setVariable('ARTICLE_UPDATED_RFC822', date(DATE_RFC822), true);
 106
 107                         if ($body) {
 108                                 $doc = new DOMDocument();
 109
 110                                 if (@$doc->loadHTML($body)) {
 111                                         $xpath = new DOMXPath($doc);
 112
 113                                         $node = $xpath->query('//picture[contains(@class, "item-comic-image")]/img')->item(0);
 114
 115                                         if ($node) {
 116                                                 $tpl->setVariable('ARTICLE_ID', $article_link, true);
 117                                                 $tpl->setVariable('ARTICLE_LINK', $article_link, true);
 118                                                 $tpl->setVariable('ARTICLE_TITLE', date('l, F d, Y'), true);
 119                                                 $tpl->setVariable('ARTICLE_EXCERPT', '', true);
 120                                                 $tpl->setVariable('ARTICLE_CONTENT', $doc->saveXML($node), true);
 121
 122                                                 $tpl->setVariable('ARTICLE_AUTHOR', '', true);
 123                                                 $tpl->setVariable('ARTICLE_SOURCE_LINK', $site_url, true);
 124                                                 $tpl->setVariable('ARTICLE_SOURCE_TITLE', $feed_title, true);
 125
 126                                                 $tpl->addBlock('entry');
 127                                         }
 128                                 }
 129                         }
 130
 131                         $tpl->addBlock('feed');
 132
 133                         $tmp_data = '';
 134
 135                         if ($tpl->generateOutputToString($tmp_data))
 136                                 $feed_data = $tmp_data;
 137                 }
 138
 139                 return $feed_data;
 140         }
 141
 142         function api_version() {
 143                 return 2;
 144         }
 145
 146 }
 147 ?>