af_comics: split contents of subscribe/basic_info/fetch hooks into appropriate per-comic filters
This commit is contained in:
Andrew Dolgov
parent
ba7f7e72db
commit
96fa6e3002
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@ -2,4 +2,16 @@
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abstract class Af_ComicFilter {
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public abstract function supported();
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public abstract function process(&$article);
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}
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public function on_subscribe($url) {
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return false;
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}
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public function on_basic_info($url) {
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return false;
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}
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public function on_fetch($url) {
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return false;
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}
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}
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@ -0,0 +1,96 @@
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<?php
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class Af_Comics_Gocomics extends Af_ComicFilter {
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function supported() {
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return ["GoComics (see note below)"];
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}
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function process(&$article) {
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return false;
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}
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public function on_subscribe($url) {
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if (preg_match('#^https?://www\.gocomics\.com/([-a-z0-9]+)$#i', $url))
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return '<?xml version="1.0" encoding="utf-8"?>'; // Get is_html() to return false.
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else
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return false;
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}
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public function on_basic_info($url) {
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if (preg_match('#^https?://www\.gocomics\.com/([-a-z0-9]+)$#i', $url, $matches))
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return ['title' => ucfirst($matches[1]), 'site_url' => $matches[0]];
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else
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return false;
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}
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public function on_fetch($url) {
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if (preg_match('#^https?://(?:feeds\.feedburner\.com/uclick|www\.gocomics\.com)/([-a-z0-9]+)$#i', $url, $comic)) {
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$site_url = 'https://www.gocomics.com/' . $comic[1];
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$article_link = $site_url . date('/Y/m/d');
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$body = fetch_file_contents(array('url' => $article_link, 'type' => 'text/html', 'followlocation' => false));
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require_once 'lib/MiniTemplator.class.php';
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$feed_title = htmlspecialchars($comic[1]);
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$site_url = htmlspecialchars($site_url);
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$article_link = htmlspecialchars($article_link);
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$tpl = new MiniTemplator();
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$tpl->readTemplateFromFile('templates/generated_feed.txt');
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$tpl->setVariable('FEED_TITLE', $feed_title, true);
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$tpl->setVariable('VERSION', get_version(), true);
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$tpl->setVariable('FEED_URL', htmlspecialchars($url), true);
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$tpl->setVariable('SELF_URL', $site_url, true);
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if ($body) {
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$doc = new DOMDocument();
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if (@$doc->loadHTML($body)) {
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$xpath = new DOMXPath($doc);
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$node = $xpath->query('//picture[contains(@class, "item-comic-image")]/img')->item(0);
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if ($node) {
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$title = $xpath->query('//h1')->item(0);
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if ($title) {
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$title = clean(trim($title->nodeValue));
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} else {
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$title = date('l, F d, Y');
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}
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foreach (['srcset', 'sizes', 'data-srcset', 'width'] as $attr ) {
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$node->removeAttribute($attr);
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}
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$tpl->setVariable('ARTICLE_ID', $article_link, true);
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$tpl->setVariable('ARTICLE_LINK', $article_link, true);
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$tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c', mktime(11, 0, 0)), true);
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$tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($title), true);
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$tpl->setVariable('ARTICLE_EXCERPT', '', true);
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$tpl->setVariable('ARTICLE_CONTENT', $doc->saveHTML($node), true);
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$tpl->setVariable('ARTICLE_AUTHOR', '', true);
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$tpl->setVariable('ARTICLE_SOURCE_LINK', $site_url, true);
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$tpl->setVariable('ARTICLE_SOURCE_TITLE', $feed_title, true);
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$tpl->addBlock('entry');
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}
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}
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}
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$tpl->addBlock('feed');
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if ($tpl->generateOutputToString($tmp_data))
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return $tmp_data;
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}
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return false;
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}
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}
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@ -0,0 +1,95 @@
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<?php
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class Af_Comics_Gocomics_FarSide extends Af_ComicFilter {
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function supported() {
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return ["The Far Side (needs cache media)"];
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}
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function process(&$article) {
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return false;
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}
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public function on_subscribe($url) {
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if (preg_match("#^https?://www\.thefarside\.com#", $url))
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return '<?xml version="1.0" encoding="utf-8"?>'; // Get is_html() to return false.
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else
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return false;
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}
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public function on_basic_info($url) {
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if (preg_match("#^https?://www.thefarside.com/#", $url))
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return ['title' => "The Far Side", 'site_url' => 'https://www.thefarside.com'];
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else
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return false;
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}
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public function on_fetch($url) {
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if (preg_match("#^https?://www\.thefarside\.com#", $url)) {
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require_once 'lib/MiniTemplator.class.php';
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$article_link = htmlspecialchars("https://www.thefarside.com" . date('/Y/m/d'));
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$tpl = new MiniTemplator();
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$tpl->readTemplateFromFile('templates/generated_feed.txt');
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$tpl->setVariable('FEED_TITLE', "The Far Side", true);
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$tpl->setVariable('VERSION', get_version(), true);
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$tpl->setVariable('FEED_URL', htmlspecialchars($url), true);
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$tpl->setVariable('SELF_URL', htmlspecialchars($url), true);
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$body = fetch_file_contents(['url' => $article_link, 'type' => 'text/html', 'followlocation' => false]);
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if ($body) {
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$doc = new DOMDocument();
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if (@$doc->loadHTML($body)) {
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$xpath = new DOMXPath($doc);
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$content_node = $xpath->query('//*[contains(@class,"js-daily-dose")]')->item(0);
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if ($content_node) {
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$imgs = $xpath->query('//img[@data-src]', $content_node);
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foreach ($imgs as $img) {
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$img->setAttribute('src', $img->getAttribute('data-src'));
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}
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$junk_elems = $xpath->query("//*[@data-shareable-popover]");
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foreach ($junk_elems as $junk)
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$junk->parentNode->removeChild($junk);
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$title = $xpath->query('//h3')->item(0);
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if ($title) {
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$title = clean(trim($title->nodeValue));
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} else {
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$title = date('l, F d, Y');
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}
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$tpl->setVariable('ARTICLE_ID', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_LINK', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c', mktime(11, 0, 0)), true);
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$tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($title), true);
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$tpl->setVariable('ARTICLE_EXCERPT', '', true);
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$tpl->setVariable('ARTICLE_CONTENT', "<p> " . $doc->saveHTML($content_node) . "</p>", true);
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$tpl->setVariable('ARTICLE_AUTHOR', '', true);
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$tpl->setVariable('ARTICLE_SOURCE_LINK', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_SOURCE_TITLE', "The Far Side", true);
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$tpl->addBlock('entry');
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}
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}
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}
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$tpl->addBlock('feed');
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if ($tpl->generateOutputToString($tmp_data))
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return $tmp_data;
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}
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return false;
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}
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}
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@ -52,7 +52,7 @@ class Af_Comics extends Plugin {
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print "<p>" . __("The following comics are currently supported:") . "</p>";
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$comics = ["GoComics", "The Far Side (needs cache media)"];
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$comics = [];
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foreach ($this->filters as $f) {
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foreach ($f->supported() as $comic) {
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@ -68,9 +68,9 @@ class Af_Comics extends Plugin {
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}
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print "</ul>";
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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>";
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print_notice("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>).");
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print "<p>".__('Drop any updated filters into <code>filters.local</code> in plugin directory.')."</p>";
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print_notice('Drop any updated filters into <code>filters.local</code> in plugin directory.');
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print "</div>";
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}
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@ -84,166 +84,35 @@ class Af_Comics extends Plugin {
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return $article;
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}
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// GoComics dropped feed support so it needs to be handled when fetching the feed.
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// TODO: this should be split into individual methods provided by filters
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function hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass) {
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if ($auth_login || $auth_pass)
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return $feed_data;
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if (preg_match('#^https?://(?:feeds\.feedburner\.com/uclick|www\.gocomics\.com)/([-a-z0-9]+)$#i', $fetch_url, $comic)) {
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$site_url = 'https://www.gocomics.com/' . $comic[1];
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$article_link = $site_url . date('/Y/m/d');
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$body = fetch_file_contents(array('url' => $article_link, 'type' => 'text/html', 'followlocation' => false));
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require_once 'lib/MiniTemplator.class.php';
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$feed_title = htmlspecialchars($comic[1]);
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$site_url = htmlspecialchars($site_url);
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$article_link = htmlspecialchars($article_link);
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$tpl = new MiniTemplator();
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$tpl->readTemplateFromFile('templates/generated_feed.txt');
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$tpl->setVariable('FEED_TITLE', $feed_title, true);
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$tpl->setVariable('VERSION', get_version(), true);
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$tpl->setVariable('FEED_URL', htmlspecialchars($fetch_url), true);
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$tpl->setVariable('SELF_URL', $site_url, true);
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if ($body) {
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$doc = new DOMDocument();
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if (@$doc->loadHTML($body)) {
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$xpath = new DOMXPath($doc);
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$node = $xpath->query('//picture[contains(@class, "item-comic-image")]/img')->item(0);
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if ($node) {
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$title = $xpath->query('//h1')->item(0);
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if ($title) {
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$title = clean(trim($title->nodeValue));
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} else {
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$title = date('l, F d, Y');
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}
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foreach (['srcset', 'sizes', 'data-srcset', 'width'] as $attr ) {
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$node->removeAttribute($attr);
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}
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$tpl->setVariable('ARTICLE_ID', $article_link, true);
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$tpl->setVariable('ARTICLE_LINK', $article_link, true);
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$tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c', mktime(11, 0, 0)), true);
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$tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($title), true);
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$tpl->setVariable('ARTICLE_EXCERPT', '', true);
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$tpl->setVariable('ARTICLE_CONTENT', $doc->saveHTML($node), true);
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$tpl->setVariable('ARTICLE_AUTHOR', '', true);
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$tpl->setVariable('ARTICLE_SOURCE_LINK', $site_url, true);
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$tpl->setVariable('ARTICLE_SOURCE_TITLE', $feed_title, true);
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$tpl->addBlock('entry');
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}
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}
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}
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$tpl->addBlock('feed');
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if ($tpl->generateOutputToString($tmp_data))
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$feed_data = $tmp_data;
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} else if (preg_match("#^https?://www\.thefarside\.com#", $fetch_url)) {
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require_once 'lib/MiniTemplator.class.php';
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$article_link = htmlspecialchars("https://www.thefarside.com" . date('/Y/m/d'));
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$tpl = new MiniTemplator();
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$tpl->readTemplateFromFile('templates/generated_feed.txt');
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$tpl->setVariable('FEED_TITLE', "The Far Side", true);
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$tpl->setVariable('VERSION', get_version(), true);
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$tpl->setVariable('FEED_URL', htmlspecialchars($fetch_url), true);
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$tpl->setVariable('SELF_URL', htmlspecialchars($fetch_url), true);
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$body = fetch_file_contents(['url' => $article_link, 'type' => 'text/html', 'followlocation' => false]);
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if ($body) {
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$doc = new DOMDocument();
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if (@$doc->loadHTML($body)) {
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$xpath = new DOMXPath($doc);
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$content_node = $xpath->query('//*[contains(@class,"js-daily-dose")]')->item(0);
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if ($content_node) {
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$imgs = $xpath->query('//img[@data-src]', $content_node);
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foreach ($imgs as $img) {
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$img->setAttribute('src', $img->getAttribute('data-src'));
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}
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$junk_elems = $xpath->query("//*[@data-shareable-popover]");
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foreach ($junk_elems as $junk)
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$junk->parentNode->removeChild($junk);
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$title = $xpath->query('//h3')->item(0);
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if ($title) {
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$title = clean(trim($title->nodeValue));
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} else {
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$title = date('l, F d, Y');
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}
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$tpl->setVariable('ARTICLE_ID', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_LINK', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_UPDATED_ATOM', date('c', mktime(11, 0, 0)), true);
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$tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($title), true);
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$tpl->setVariable('ARTICLE_EXCERPT', '', true);
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$tpl->setVariable('ARTICLE_CONTENT', "<p> " . $doc->saveHTML($content_node) . "</p>", true);
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$tpl->setVariable('ARTICLE_AUTHOR', '', true);
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$tpl->setVariable('ARTICLE_SOURCE_LINK', htmlspecialchars($article_link), true);
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$tpl->setVariable('ARTICLE_SOURCE_TITLE', "The Far Side", true);
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$tpl->addBlock('entry');
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}
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}
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}
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$tpl->addBlock('feed');
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if ($tpl->generateOutputToString($tmp_data))
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$feed_data = $tmp_data;
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foreach ($this->filters as $f) {
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$res = $f->on_fetch($fetch_url);
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if ($res)
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return $res;
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}
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return $feed_data;
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}
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function hook_subscribe_feed($contents, $url, $auth_login, $auth_pass) {
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if ($auth_login || $auth_pass)
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return $contents;
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foreach ($this->filters as $f) {
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$res = $f->on_subscribe($url);
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if (preg_match('#^https?://www\.gocomics\.com/([-a-z0-9]+)$#i', $url) ||
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preg_match("#^https?://www\.thefarside\.com#", $url))
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return '<?xml version="1.0" encoding="utf-8"?>'; // Get is_html() to return false.
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if ($res)
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return $res;
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}
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return $contents;
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}
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function hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass) {
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if ($auth_login || $auth_pass)
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return $basic_info;
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foreach ($this->filters as $f) {
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$res = $f->on_basic_info($fetch_url);
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if (preg_match('#^https?://www\.gocomics\.com/([-a-z0-9]+)$#i', $fetch_url, $matches))
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$basic_info = ['title' => ucfirst($matches[1]), 'site_url' => $matches[0]];
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if (preg_match("#^https?://www.thefarside.com/#", $fetch_url))
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$basic_info = ['title' => "The Far Side", 'site_url' => 'https://www.thefarside.com'];
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if ($res)
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return $res;
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}
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return $basic_info;
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}
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