54 lines
1.8 KiB
PHP
54 lines
1.8 KiB
PHP
<?php
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/**
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* Name: 404 Detector
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://code.shishnet.org/shimmie2/
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* License: GPLv2
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* Visibility: admin
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* Description: If Shimmie can't handle a request, check static files; if that fails, show a 404
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*/
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class Handle404 extends Extension {
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public function onPageRequest(PageRequestEvent $event) {
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global $config, $page;
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// hax.
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if($page->mode == "page" && (!isset($page->blocks) || $this->count_main($page->blocks) == 0)) {
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$h_pagename = html_escape(implode('/', $event->args));
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$f_pagename = preg_replace("/[^a-z_\-\.]+/", "_", $h_pagename);
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$theme_name = $config->get_string("theme", "default");
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if(file_exists("themes/$theme_name/$f_pagename") || file_exists("lib/static/$f_pagename")) {
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$filename = file_exists("themes/$theme_name/$f_pagename") ?
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"themes/$theme_name/$f_pagename" : "lib/static/$f_pagename";
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header("Cache-control: public, max-age=600");
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header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 600) . ' GMT');
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$page->set_mode("data");
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$page->set_data(file_get_contents($filename));
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if(endsWith($filename, ".ico")) $page->set_type("image/x-icon");
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if(endsWith($filename, ".png")) $page->set_type("image/png");
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if(endsWith($filename, ".txt")) $page->set_type("text/plain");
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}
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else {
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log_debug("handle_404", "Hit 404: $h_pagename");
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$page->add_http_header("HTTP/1.0 404 Page Not Found",5);
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$page->set_title("404");
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$page->set_heading("404 - No Handler Found");
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$page->add_block(new NavBlock());
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$page->add_block(new Block("Explanation", "No handler could be found for the page '$h_pagename'"));
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}
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}
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}
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private function count_main($blocks) {
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$n = 0;
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foreach($blocks as $block) {
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if($block->section == "main") $n++; // more hax.
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}
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return $n;
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}
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public function get_priority() {return 99;}
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}
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