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_SUBSCRIBE_FEED, $this);
  18                 $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  19                 $host->add_hook($host::HOOK_PREFS_TAB, $this);
  20
  21                 require_once __DIR__ . "/filter_base.php";
  22
  23                 $filters = array_merge(glob(__DIR__ . "/filters.local/*.php"), glob(__DIR__ . "/filters/*.php"));
  24                 $names = [];
  25
  26                 foreach ($filters as $file) {
  27                         $filter_name = preg_replace("/\..*$/", "", basename($file));
  28
  29                         if (array_search($filter_name, $names) === FALSE) {
  30                                 if (!class_exists($filter_name)) {
  31                                         require_once $file;
  32                                 }
  33
  34                                 array_push($names, $filter_name);
  35
  36                                 $filter = new $filter_name();
  37
  38                                 if (is_subclass_of($filter, "Af_ComicFilter")) {
  39                                         array_push($this->filters, $filter);
  40                                         array_push($names, $filter_name);
  41                                 }
  42                         }
  43                 }
  44         }
  45
  46         function hook_prefs_tab($args) {
  47                 if ($args != "prefFeeds") return;
  48
  49                 print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Feeds supported by af_comics')."\">";
  50
  51                 print "<p>" . __("The following comics are currently supported:") . "</p>";
  52
  53                 $comics = array("GoComics");
  54
  55                 foreach ($this->filters as $f) {
  56                         foreach ($f->supported() as $comic) {
  57                                 array_push($comics, $comic);
  58                         }
  59                 }
  60
  61                 asort($comics);
  62
  63                 print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
  64                 foreach ($comics as $comic) {
  65                         print "<li>$comic</li>";
  66                 }
  67                 print "</ul>";
  68
  69                 print "<p>".__("To subscribe to GoComics use the comic's regular web page as the feed URL (e.g. for the <em>Garfield</em> comic use <code>http://www.gocomics.com/garfield</code>).")."</p>";
  70
  71                 print "<p>".__('Drop any updated filters into <code>filters.local</code> in plugin directory.')."</p>";
  72
  73                 print "</div>";
  74         }
  75
  76         function hook_article_filter($article) {
  77                 foreach ($this->filters as $f) {
  78                         if ($f->process($article))
  79                                 break;
  80                 }
  81
  82                 return $article;
  83         }
  84
  85         // GoComics dropped feed support so it needs to be handled when fetching the feed.
  86         /**
  87          * @SuppressWarnings(PHPMD.UnusedFormalParameter)
  88          */
  89         function hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass) {
  90                 if ($auth_login || $auth_pass)
  91                         return $feed_data;
  92
  93                 if (preg_match('#^https?://(?:feeds\.feedburner\.com/uclick|www\.gocomics\.com)/([-a-z0-9]+)$#i', $fetch_url, $comic)) {
  94                         $site_url = 'https://www.gocomics.com/' . $comic[1];
  95
  96                         $article_link = $site_url . date('/Y/m/d');
  97
  98                         $body = fetch_file_contents(array('url' => $article_link, 'type' => 'text/html', 'followlocation' => false));
  99
 100                         require_once 'lib/MiniTemplator.class.php';
 101
 102                         $feed_title = htmlspecialchars($comic[1]);
 103                         $site_url = htmlspecialchars($site_url);
 104                         $article_link = htmlspecialchars($article_link);
 105
 106                         $tpl = new MiniTemplator();
 107
 108                         $tpl->readTemplateFromFile('templates/generated_feed.txt');
 109
 110                         $tpl->setVariable('FEED_TITLE', $feed_title, true);
 111                         $tpl->setVariable('VERSION', VERSION, true);
 112                         $tpl->setVariable('FEED_URL', htmlspecialchars($fetch_url), true);
 113                         $tpl->setVariable('SELF_URL', $site_url, true);
 114
 115                         $tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c'), true);
 116                         $tpl->setVariable('ARTICLE_UPDATED_RFC822', date(DATE_RFC822), true);
 117
 118                         if ($body) {
 119                                 $doc = new DOMDocument();
 120
 121                                 if (@$doc->loadHTML($body)) {
 122                                         $xpath = new DOMXPath($doc);
 123
 124                                         $node = $xpath->query('//picture[contains(@class, "item-comic-image")]/img')->item(0);
 125
 126                                         if ($node) {
 127                                                 $node->removeAttribute("width");
 128                                                 $node->removeAttribute("data-srcset");
 129                                                 $node->removeAttribute("srcset");
 130
 131                                                 $tpl->setVariable('ARTICLE_ID', $article_link, true);
 132                                                 $tpl->setVariable('ARTICLE_LINK', $article_link, true);
 133                                                 $tpl->setVariable('ARTICLE_TITLE', date('l, F d, Y'), true);
 134                                                 $tpl->setVariable('ARTICLE_EXCERPT', '', true);
 135                                                 $tpl->setVariable('ARTICLE_CONTENT', $doc->saveHTML($node), true);
 136
 137                                                 $tpl->setVariable('ARTICLE_AUTHOR', '', true);
 138                                                 $tpl->setVariable('ARTICLE_SOURCE_LINK', $site_url, true);
 139                                                 $tpl->setVariable('ARTICLE_SOURCE_TITLE', $feed_title, true);
 140
 141                                                 $tpl->addBlock('entry');
 142
 143                                         }
 144                                 }
 145                         }
 146
 147                         $tpl->addBlock('feed');
 148
 149                         $tmp_data = '';
 150
 151                         if ($tpl->generateOutputToString($tmp_data))
 152                                 $feed_data = $tmp_data;
 153                 }
 154
 155                 return $feed_data;
 156         }
 157
 158         function hook_subscribe_feed($contents, $url, $auth_login, $auth_pass) {
 159                 if ($auth_login || $auth_pass)
 160                         return $contents;
 161
 162                 if (preg_match('#^https?://www\.gocomics\.com/([-a-z0-9]+)$#i', $url))
 163                         return '<?xml version="1.0" encoding="utf-8"?>'; // Get is_html() to return false.
 164
 165                 return $contents;
 166         }
 167
 168         function api_version() {
 169                 return 2;
 170         }
 171
 172 }