/// for documentation. $config["date_fmt"] = "l, M jS, Y, H:i T"; /// Timezone /// /// A value of type DateTimeZone, see /// /// for documentation. $config["timezone"] = new DateTimeZone('UTC'); /// /// /// What to set for the target= attribute on generated links. /// _top will redirect the main tab, _blank wil make a nwe tab $config["link_target"] = "_top"; /* --- CODE - DO NOT TOUCH --- */ function load_rss(string $uri, string $linkrel = "alternate"): array { global $config; $xml = file_get_contents($uri); // if the file doesn't contain an encoding, attempt to read it from http headers and re-encode if (!preg_match("/^[^>]+encoding/", $xml) && str_starts_with($uri, "http")) { foreach ($http_response_header as $header) { if (!str_starts_with(strtolower($header), "content-type")) continue; if (preg_match("/(?<=charset=)[a-z0-9_-]+/i", $header, $matches)) { $xml = iconv($matches[0], "UTF-8", $xml); $doc = new DOMDocument(encoding: "UTF-8"); } break; } } $doc ??= new DOMDocument(); $doc->loadXML($xml); if ($doc->documentElement->nodeName == "rss") { // TODO: better rss / atom sniffing foreach ($doc->getElementsByTagName("item") as $node) { $data["title"] = $node->getElementsByTagName("title") ?->item(0)?->textContent; $data["link"] ??= $node->getElementsByTagName("link") ?->item(0)?->textContent; $data["date"] = new DateTime($node->getElementsByTagName("pubDate") ->item(0)->textContent); $data["date"]->setTimezone($config["timezone"]); $parsed[] = $data; } } else { // assume atom foreach ($doc->getElementsByTagName("entry") as $node) { $data["title"] = $node->getElementsByTagName("title") ?->item(0)?->textContent; $data["links"] = []; foreach ($node->getElementsByTagName("link")->getIterator() as $link) { $date["links"][] = ["rel" => $link->getAttribute("rel"), "href" => $link->getAttribute("href")]; if ($link->getAttribute("rel") === $linkrel) { $data["link"] ??= $link->getAttribute("href"); } } $data["link"] ??= @$data["links"][0]; $data["date"] = $node->getElementsByTagName("published") ?->item(0)?->textContent; $data["date"] ??= $node->getElementsByTagName("updated") ?->item(0)?->textContent; $data["date"] = new DateTime($data["date"]); $data["date"]->setTimezone($config["timezone"]); $parsed[] = $data; } } return $parsed??[]; } function load_cached(int $ttl, string $uri, string $linkrel = "alternate"): array { global $config; $path = $config["cache_dir"]."/".md5($uri); // echo $path."\n"; if ((@filemtime($path) ?? 0) + $ttl < time()) { // echo "cache miss, loading over network\n"; $data = load_rss($uri, $linkrel); file_put_contents($path, serialize($data)); return $data; } else { // echo "cache hit, loading from file\n"; return unserialize(file_get_contents($path)); } } @mkdir($config["cache_dir"], recursive: true); foreach ($_GET["disabled"]??[] as $idx => $feed) { if (!array_key_exists($feed, $feeds)) { unset($_GET["disabled"][$idx]); continue; } $off_feeds[$feed] = @$feeds[$feed]; unset($feeds[$feed]); } $combined = []; // Real Feed Processing Happens Here foreach ($feeds as $name => $data) { if (!isset($data["url"])) { error_log("Feed \"$name\" missing url. Ignoring."); continue; } if (!isset($data["ttl"])) $data["ttl"] = 3600; if (!isset($data["linkrel"])) $data["linkrel"] = "alternate"; foreach(load_cached($data["ttl"], $data["url"], $data["linkrel"]) as $entry) { $entry["source"] = $name; $entry["home"] = @$data["home"]; $combined[] = $entry; } } // reverse-chronological by default usort($combined, fn($a, $b) => $b["date"]->getTimestamp() <=> $a["date"]->getTimestamp()); if (isset($_GET["reverse"])) $combined = array_reverse($combined); $base = parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH); ?>

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