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61 lines
3 KiB
PHP
61 lines
3 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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register_module([
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"name" => "Redirect pages",
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"version" => "0.3.2",
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"author" => "Starbeamrainbowlabs",
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"description" => "Adds support for redirect pages. Uses the same syntax that Mediawiki does.",
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"id" => "feature-redirect",
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"code" => function() {
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global $settings;
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register_save_preprocessor("update_redirect_metadata");
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$help_html = "<p>$settings->sitename supports redirect pages. To create a redirect page, enter something like <code># REDIRECT [[pagename]]</code> on the first line of the redirect page's content. This <em>must</em> appear as the first line of the page, with no whitespace before it. You can include content beneath the redirect if you want, too (such as a reason for redirecting the page).</p>";
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if($settings->redirect_absolute_enable == true) $help_html .= "<p>$settings->sitename also has absolute redirects enabled (e.g. if you want to make your main page point to the all pages list). To make a page an absolute redirect page, enter the following on the first line: <code># REDIRECT [all pages](?action=list)</code>. This example will cause the page to become a redirect to the all pages list. Of course, you can change the <code>?action=list</code> bit to be any regular URL you like (relative or absolute)</p>";
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// Register a help section
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add_help_section("25-redirect", "Redirect Pages", $help_html);
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}
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]);
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/**
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* Updates the metadata associated with redirects in the pageindex entry
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* specified utilising the provided page content.
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* @package redirect
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* @param object $index_entry The page index entry object to update.
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* @param string $pagedata The page content to operate on.
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*/
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function update_redirect_metadata(&$index_entry, &$pagedata) {
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$matches = [];
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if(preg_match("/^# ?REDIRECT ?\[\[([^\]]+)\]\]/i", $pagedata, $matches) === 1)
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{
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//error_log("matches: " . var_export($matches, true));
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// We have found a redirect page!
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// Update the metadata to reflect this.
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$index_entry->redirect = true;
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$index_entry->redirect_target = $matches[1];
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$index_entry->redirect_absolute = false;
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}
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// We don't disable absolute redirects here, because it's the view action that processes them - we only register them here. Checking here would result in pages that are supposed to be redirects being missed if redirect_absolute_enable is turned on after such a page is created.
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elseif(preg_match("/^# ?REDIRECT ?\[[^\]]+\]\(([^)]+)\)/", $pagedata, $matches) === 1) {
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$index_entry->redirect = true;
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$index_entry->redirect_target = $matches[1];
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$index_entry->redirect_absolute = true;
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}
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else
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{
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// This page isn't a redirect. Unset the metadata just in case.
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if(isset($index_entry->redirect))
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unset($index_entry->redirect);
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if(isset($index_entry->redirect_target))
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unset($index_entry->redirect_target);
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if(isset($index_entry->redirect_absolute))
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unset($index_entry->redirect_absolute);
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}
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}
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?>
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