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 = array_merge(glob(__DIR__ . "/filters.local/*.php"), glob(__DIR__ . "/filters/*.php"));
  23                 $names = [];
  24
  25                 foreach ($filters as $file) {
  26                         $filter_name = preg_replace("/\..*$/", "", basename($file));
  27
  28                         if (array_search($filter_name, $names) === FALSE) {
  29                                 if (!class_exists($filter_name)) {
  30                                         require_once $file;
  31                                 }
  32
  33                                 array_push($names, $filter_name);
  34
  35                                 $filter = new $filter_name();
  36
  37                                 if (is_subclass_of($filter, "Af_ComicFilter")) {
  38                                         array_push($this->filters, $filter);
  39                                         array_push($names, $filter_name);
  40                                 }
  41                         }
  42                 }
  43         }
  44
  45         function hook_prefs_tab($args) {
  46                 if ($args != "prefFeeds") return;
  47
  48                 print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Feeds supported by af_comics')."\">";
  49
  50                 print "<p>" . __("The following comics are currently supported:") . "</p>";
  51
  52                 $comics = array("GoComics");
  53
  54                 foreach ($this->filters as $f) {
  55                         foreach ($f->supported() as $comic) {
  56                                 array_push($comics, $comic);
  57                         }
  58                 }
  59
  60                 asort($comics);
  61
  62                 print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
  63                 foreach ($comics as $comic) {
  64                         print "<li>$comic</li>";
  65                 }
  66                 print "</ul>";
  67
  68                 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>";
  69
  70                 print "<p>".__('Drop any updated filters into <code>filters.local</code> in plugin directory.')."</p>";
  71
  72                 print "</div>";
  73         }
  74
  75         function hook_article_filter($article) {
  76                 foreach ($this->filters as $f) {
  77                         if ($f->process($article))
  78                                 break;
  79                 }
  80
  81                 return $article;
  82         }
  83
  84         // GoComics dropped feed support so it needs to be handled when fetching the feed.
  85         /**
  86          * @SuppressWarnings(PHPMD.UnusedFormalParameter)
  87          */
  88         function hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass) {
  89                 if ($auth_login || $auth_pass)
  90                         return $feed_data;
  91
  92                 if (preg_match('#^https?://feeds.feedburner.com/uclick/([-a-z]+)#', $fetch_url, $comic)) {
  93                         $site_url = 'http://www.gocomics.com/' . $comic[1];
  94
  95                         $article_link = $site_url . date('/Y/m/d');
  96
  97                         $body = fetch_file_contents(array('url' => $article_link, 'type' => 'text/html', 'followlocation' => false));
  98
  99                         require_once 'lib/MiniTemplator.class.php';
 100
 101                         $feed_title = htmlspecialchars($comic[1]);
 102                         $site_url = htmlspecialchars($site_url);
 103                         $article_link = htmlspecialchars($article_link);
 104
 105                         $tpl = new MiniTemplator();
 106
 107                         $tpl->readTemplateFromFile('templates/generated_feed.txt');
 108
 109                         $tpl->setVariable('FEED_TITLE', $feed_title, true);
 110                         $tpl->setVariable('VERSION', VERSION, true);
 111                         $tpl->setVariable('FEED_URL', htmlspecialchars($fetch_url), true);
 112                         $tpl->setVariable('SELF_URL', $site_url, true);
 113
 114                         $tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c'), true);
 115                         $tpl->setVariable('ARTICLE_UPDATED_RFC822', date(DATE_RFC822), true);
 116
 117                         if ($body) {
 118                                 $doc = new DOMDocument();
 119
 120                                 if (@$doc->loadHTML($body)) {
 121                                         $xpath = new DOMXPath($doc);
 122
 123                                         $node = $xpath->query('//picture[contains(@class, "item-comic-image")]/img')->item(0);
 124
 125                                         if ($node) {
 126                                                 $tpl->setVariable('ARTICLE_ID', $article_link, true);
 127                                                 $tpl->setVariable('ARTICLE_LINK', $article_link, true);
 128                                                 $tpl->setVariable('ARTICLE_TITLE', date('l, F d, Y'), true);
 129                                                 $tpl->setVariable('ARTICLE_EXCERPT', '', true);
 130                                                 $tpl->setVariable('ARTICLE_CONTENT', $doc->saveXML($node), true);
 131
 132                                                 $tpl->setVariable('ARTICLE_AUTHOR', '', true);
 133                                                 $tpl->setVariable('ARTICLE_SOURCE_LINK', $site_url, true);
 134                                                 $tpl->setVariable('ARTICLE_SOURCE_TITLE', $feed_title, true);
 135
 136                                                 $tpl->addBlock('entry');
 137                                         }
 138                                 }
 139                         }
 140
 141                         $tpl->addBlock('feed');
 142
 143                         $tmp_data = '';
 144
 145                         if ($tpl->generateOutputToString($tmp_data))
 146                                 $feed_data = $tmp_data;
 147                 }
 148
 149                 return $feed_data;
 150         }
 151
 152         function api_version() {
 153                 return 2;
 154         }
 155
 156 }