<?php //
/* * SiteGraph.php - A MediaWiki tag extension for adding site graphs based on GraphViz. * @author Kenneth L. Root * @version 1.0.0 * @copyright Copyright (C) 2007-2009 Kenneth L. Root * @license GNU General Public License (https://www.gnu.org/licenses/gpl.txt) * ----------------------------------------------------------------------- * Description: * This is a MediaWiki extension which a site graph utilizing the * GraphViz plugin and program. * * Installation: * 1. Place this in a directory (SiteGraph) under $IP/extensions * 2. Enable the extension by adding this line to your LocalSettings.php: * require_once('extensions/SiteGraph/SiteGraph.php'); * * Usage: * Once installed, you may utilize SiteGraph by adding the <sitegraph> tag. * * Example: * * <sitegraph type="digraph" layout="neato"> * graph [ * center=true, * fontname="Verdana", * bgcolor="transparent", * truecolor="true", * fontsize=12, * overlap="orthoyx", * splines="true", * pack="true", * sep="0.1", * dpi=62, * ratio="compress", * epsilon="0.001", * ]; * * edge [ * fontsize=12, * arrowsize=0.5, * len=0.5 * ]; * * node [ * fontsize=12, * shape="plaintext", * height=0.25, * width=0.25, * fontcolor=blue, * ]; * </sitegraph> * * Version Notes: * version 1.0.0: * Initial release. * ----------------------------------------------------------------------- * Copyright (c) 2007-2009 Kenneth L. Root * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. * ----------------------------------------------------------------------- */
if (!defined('MEDIAWIKI')) { die( "This file is part of MediaWiki and is not a valid entry point\n" );}
$wgExtensionFunctions[] = 'SiteGraph_init';$wgExtensionCredits['parserhook'][] = array( 'name' => 'SiteGraph', 'version' => '1.0.0', 'author' => '[https://the-b.org/ Kenny Root]', 'url' => 'https://the-b.org/SiteGraph', 'description' => 'Create a sitemap graph through GraphViz.',);
/** * Sets up the SiteGraph Parser hook and system messages */function SiteGraph_init() { global $wgParser, $wgMessageCache; $wgParser->setHook( 'sitegraph', 'SiteGraph_render' );}
function SiteGraph_render($text, $params = array(), &$parser) { global $wgContLang, $wgOut;
$dbr = wfGetDB(DB_SLAVE); list($page, $pagelinks) = $dbr->tableNamesN('page', 'pagelinks');
$type = "graph"; if (array_key_exists('type', $params)) $type = $params['type'];
$layout = "dot"; if (array_key_exists('layout', $params)) $layout = $params['layout'];
$html = array(); $html[] = "<graphviz layout='$layout'>$type A {"; $html[] = $text;
$res = $dbr->query("SELECT page_namespace AS namespace, page_title AS title FROM $page WHERE page_namespace = ".NS_MAIN." AND page_is_redirect = 0"); $num = $dbr->numRows($res);
for ($i = 0; $i < $num && $row = $dbr->fetchObject($res); $i++) { $title = Title::makeTitleSafe($row->namespace, $row->title); $html[] = "\"". $row->title ."\" [label=\"" . htmlspecialchars($wgContLang->convert($title->getPrefixedText())) . "\" URL=\"/" . $row->title . "\"];"; }
$res = $dbr->query("SELECT page1.page_namespace AS namespace1, page1.page_title AS title1, page2.page_namespace AS namespace2, page2.page_title AS title2 FROM page page1 LEFT JOIN pagelinks link1 ON page1.page_id = link1.pl_from LEFT JOIN page page2 ON link1.pl_title = page2.page_title LEFT JOIN pagelinks link2 ON page2.page_id = link2.pl_from WHERE link2.pl_title = page1.page_title AND page1.page_title < page2.page_title AND (page1.page_namespace = ".NS_MAIN." OR page1.page_namespace >= 100) AND (page2.page_namespace = ".NS_MAIN." OR page2.page_namespace >= 100) AND page1.page_is_redirect = 0 AND page2.page_is_redirect = 0"); $num = $dbr->numRows($res);
for ($i = 0; $i < $num && $row = $dbr->fetchObject($res); $i++) { $html[] = "\"". $row->title1 ."\" -> \"". $row->title2 ."\" [dir=\"both\"];"; }
$res = $dbr->query("SELECT DISTINCT page1.page_namespace AS namespace1, page1.page_title AS title1, page2.page_namespace AS namespace2, page2.page_title AS title2 FROM page page1 INNER JOIN pagelinks link1 ON page1.page_id = link1.pl_from INNER JOIN page page2 ON link1.pl_title = page2.page_title LEFT JOIN pagelinks link2 ON ((page2.page_id = link2.pl_from) AND (page1.page_title = link2.pl_title)) WHERE link2.pl_from IS NULL AND page1.page_id <> page2.page_id AND (page1.page_namespace = 0 OR page1.page_namespace >= 102) AND (page2.page_namespace = 0 OR page2.page_namespace >= 102) AND page1.page_is_redirect = 0 AND page2.page_is_redirect = 0;"); $num = $dbr->numRows($res);
if ($type == "graph") $connector = "--"; else $connector = "->";
for ($i = 0; $i < $num && $row = $dbr->fetchObject($res); $i++) { $html[] = "\"". $row->title1 ."\" ". $connector ." \"". $row->title2 ."\";"; }
$html[] = "}</graphviz>";
return '<!-- ENCODED_SITEGRAPH '. base64_encode(implode($html, "\n")) . ' -->';}
if (!function_exists('processSiteGraphOutput')) { $wgHooks['ParserAfterTidy'][] = 'processSiteGraphOutput'; function processSiteGraphOutput(&$out, &$text) { global $wgOut;
# Find all hidden content and restore to normal $matches = array(); $nmatch = preg_match_all( '/<!-- ENCODED_SITEGRAPH ([0-9a-zA-Z\\+]+=*) -->/esm', $text, $matches, PREG_SET_ORDER);
for ($i = 0; $i < $nmatch; $i++) { $text = str_replace( $matches[$i][0], $wgOut->parse(base64_decode($matches[$i][1])), $text); } return true; }}Kenny Root
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