Dokuwiki module for Elgg 1.7

1 files changed, 204 insertions, 0 deletions

diff --git a/start.php b/start.php
new file mode 100644
index 000000000..2fc13011b
--- /dev/null
+++ b/start.php
@@ -0,0 +1,204 @@
+<?php
+/**
+         * Elgg dokuwiki plugin
+         * 
+         * @package
+         * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+         * @author lorea
+         * @copyright lorea
+         * @link http://lorea.cc
+         */
+
+	function current_dokuwiki_entity($create = true) {
+		$page_owner = page_owner();
+		$user = get_loggedin_user();
+		//error_log($page_owner->guid);
+		//error_log($user->guid);
+		if (!$page_owner)
+			$page_owner = 0;
+		$entities = elgg_get_entities(array('types' => 'object', 'subtypes' => 'dokuwiki', 'limit' => 1, 'owner_guid' => $page_owner));
+		if ($entities) {
+			$doku = $entities[0];
+			return $doku;
+		}
+		elseif ($user && $create) {
+			elgg_set_ignore_access(true);
+			$newdoku = new ElggObject();
+			$newdoku->access_id = ACCESS_PUBLIC;
+			$newdoku->owner_guid = $page_owner;
+			$newdoku->subtype = 'dokuwiki';
+			$newdoku->container_guid = $page_owner;
+			$newdoku->save();
+			$acl = array();
+		        $acl[] = "# acl.auth.php";
+		        $acl[] = '# <?php exit()?\>';
+ 		        $acl[] = "*               @ALL        0";
+		        $acl[] = "*               @user        1";
+		        $acl[] = "*               @member        8";
+		        $acl[] = "*               @admin        16";
+		        $acl[] = "*               @root        255";
+			$newdoku->wiki_acl = implode("\n", $acl)."\n";
+			elgg_set_ignore_access(false);
+			return $newdoku;
+		}
+	}
+
+	function elggdoku_recurse_copy($src,$dst) {
+	    $dir = opendir($src);
+	    @mkdir($dst);
+	    while(false !== ( $file = readdir($dir)) ) {
+		if (( $file != '.' ) && ( $file != '..' )) {
+		    if ( is_dir($src . '/' . $file) ) {
+			elggdoku_recurse_copy($src . '/' . $file,$dst . '/' . $file);
+		    }
+		    else {
+			copy($src . '/' . $file,$dst . '/' . $file);
+		    }
+		}
+	    }
+	    closedir($dir);
+	} 
+
+	function elggdokuwiki_create_datafolder($path) {
+		global $CONFIG;
+		if (is_dir($path)) // if it exists must be already created
+			return;
+		mkdir($path, 0700, true);
+		$orig = $CONFIG->pluginspath.'dokuwiki/lib/dokuwiki/data';
+		elggdoku_recurse_copy($orig, $path);
+		
+	}
+
+	function elggdokuwiki_page_handler($page) {
+		global $CONFIG;
+		if ($page[0] === "index") {
+			set_context("search");
+			include($CONFIG->pluginspath.'dokuwiki/index.php');
+			return;
+		}
+		set_context("dokuwiki");
+		$dokuwiki_path = $CONFIG->pluginspath.'dokuwiki/lib/dokuwiki/';
+		$doku = current_dokuwiki_entity();
+		if (!$doku) // can fail if there is no user and wiki doesnt exist
+			forward();
+		$parsed_url = parse_url($CONFIG->wwwroot.'pg/dokuwiki/');
+		$url_base = $parsed_url['path'];
+		if (is_numeric($page[0])) {
+			$entity_guid = $page[0];
+			$ent = get_entity($entity_guid);
+			if (($ent && $ent instanceof ElggGroup) && $ent->dokuwiki_enable !== 'yes') {
+				// wiki not activated for this group. bail out.
+				forward();
+			}
+			if ($ent && (/*$ent instanceof ElggUser ||*/ $ent instanceof ElggGroup)) {
+				set_page_owner($entity_guid);
+				$data_path = $CONFIG->dataroot.'wikis/'.$entity_guid;
+			} else {
+				// can't see the group
+				forward();
+			}
+			$page = array_slice($page, 1); // pop first element
+			define('DOKU_REL', $url_base.$entity_guid."/");
+			define('DOKU_BASE', $url_base.$entity_guid."/");
+			define('DOKU_URL', $CONFIG->wwwroot.'pg/dokuwiki/'.$entity_guid."/");
+
+		}
+		else {
+			$data_path = $CONFIG->dataroot.'wiki';
+			define('DOKU_REL', $url_base);
+			define('DOKU_BASE', $url_base);
+			define('DOKU_URL', $CONFIG->wwwroot.'pg/dokuwiki/');
+		}
+		define('DOKU_INC', $dokuwiki_path);
+		define('DOKU_MEDIA', $CONFIG->wwwroot.'mod/dokuwiki/lib/dokuwiki/');
+		define('DOKU_CONF', $dokuwiki_path."conf/");
+
+		elggdokuwiki_create_datafolder($data_path);
+		define('DOKU_ELGGDATA',$data_path);
+		if (empty($page) || (count($page)==1 && $page[0] == 'acl')) {
+			$page = array('doku.php');
+		}
+		else if ((count($page)==1 && $page[0] == 'usermanager')) {
+			$page = array('doku.php');
+		}
+		else if ((count($page)==1 && $page[0] == 'plugin')) {
+			$page = array('doku.php');
+		}
+		else if ((count($page)==1 && $page[0] == 'config')) {
+			$page = array('doku.php');
+		}
+		else if ((count($page)==1 && $page[0] == 'revert')) {
+			$page = array('doku.php');
+		}
+		else if ((count($page)==1 && $page[0] == 'popularity')) {
+			$page = array('doku.php');
+		}
+		if (empty($page) || (count($page)==1 && !$page[0])) {
+			$page = array('doku.php');
+		}
+		$_SERVER['PHP_AUTH_USER'] = get_loggedin_user()->username;
+		$_SERVER['PHP_AUTH_PW'] = get_loggedin_user()->password;
+		if (count($page) == 1) {
+			$doku_body = elgg_view('dokuwiki/index',array('page'=>$page[0]));
+			echo $doku_body;
+		}
+		else {
+			// avoid inclusion over root
+			$dest = realpath($dokuwiki_path.implode("/",$page));
+			if (strpos($dest, $dokuwiki_path) == 0)
+				$doku_body = elgg_view('dokuwiki/index',array('page'=>implode("/",$page)));
+			echo $doku_body;
+		}
+		return;
+	}
+
+	function elggdokuwiki_pagesetup() {
+		global $CONFIG;
+		if (page_owner()) {
+			$page_owner = page_owner_entity();
+			if ($page_owner instanceof ElggGroup && $page_owner->dokuwiki_enable == 'yes')
+				$title = elgg_echo("dokuwiki:groupwiki");
+			if ($title && get_context() == "groups") {
+				add_submenu_item($title, $CONFIG->wwwroot . "pg/dokuwiki/" . page_owner());
+			}
+		}
+
+	}
+
+	function elggdokuwiki_icon_hook($hook, $entity_type, $returnvalue, $params) {
+		global $CONFIG;
+		if ($hook == 'entity:icon:url' && $params['entity']->getSubtype() == 'dokuwiki') {
+			$owner = get_entity($params['entity']->container_guid);
+			if ($owner)
+				return $owner->getIcon($params['size']);
+		}
+		return $returnvalue;
+	}
+
+	function elggdokuwiki_url($entity) {
+		global $CONFIG;
+		return $CONFIG->url . "pg/dokuwiki/".$entity->container_guid;
+	}
+
+ 	function elggdokuwiki_init(){
+			global $CONFIG;
+			register_entity_type('object','dokuwiki');
+			register_plugin_hook('entity:icon:url', 'object', 'elggdokuwiki_icon_hook');
+			register_entity_url_handler('elggdokuwiki_url','object', 'dokuwiki');
+		        register_elgg_event_handler('pagesetup','system','elggdokuwiki_pagesetup');
+
+			register_page_handler('dokuwiki','elggdokuwiki_page_handler');
+	                add_group_tool_option('dokuwiki',elgg_echo('groups:enabledokuwiki'),false);
+	                add_group_tool_option('dokuwiki_frontsidebar',elgg_echo('groups:enabledokuwiki_frontsidebar'),false);
+	                add_group_tool_option('dokuwiki_frontpage',elgg_echo('groups:enabledokuwiki_frontpage'),false);
+			elgg_extend_view('groups/forum_latest','dokuwiki/grouppage');
+			elgg_extend_view('groups/left_column','dokuwiki/sidebar');
+			/*if (isloggedin()) {
+				add_menu(elgg_echo('dokuwiki'), $CONFIG->wwwroot . "pg/dokuwiki/index");
+			}*/
+                        elgg_extend_view("metatags", "dokuwiki/metatags");
+	}
+
+register_elgg_event_handler('init','system','elggdokuwiki_init');
+
+?>