1 files changed, 235 insertions, 0 deletions
diff --git a/includes/SpecialListusers.php b/includes/SpecialListusers.php
new file mode 100644
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--- /dev/null
+++ b/includes/SpecialListusers.php
@@ -0,0 +1,235 @@
+<?php
+
+# Copyright (C) 2004 Brion Vibber, lcrocker, Tim Starling,
+# Domas Mituzas, Ashar Voultoiz, Jens Frank, Zhengzhu.
+#
+# © 2006 Rob Church <robchur@gmail.com>
+#
+# http://www.mediawiki.org/
+#
+# 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 2 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+# http://www.gnu.org/copyleft/gpl.html
+/**
+ *
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ */
+
+/**
+ * This class is used to get a list of user. The ones with specials
+ * rights (sysop, bureaucrat, developer) will have them displayed
+ * next to their names.
+ *
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ */
+class ListUsersPage extends QueryPage {
+	var $requestedGroup = '';
+	var $requestedUser = '';
+
+	function getName() {
+		return 'Listusers';
+	}
+	function isSyndicated() { return false; }
+
+	/**
+	 * Not expensive, this class won't work properly with the caching system anyway
+	 */
+	function isExpensive() {
+		return false;
+	}
+
+	/**
+	 * Fetch user page links and cache their existence
+	 */
+	function preprocessResults( &$db, &$res ) {
+		$batch = new LinkBatch;
+		while ( $row = $db->fetchObject( $res ) ) {
+			$batch->addObj( Title::makeTitleSafe( $row->namespace, $row->title ) );
+		}
+		$batch->execute();
+
+		// Back to start for display
+		if( $db->numRows( $res ) > 0 ) {
+			// If there are no rows we get an error seeking.
+			$db->dataSeek( $res, 0 );
+		}
+	}
+
+	/**
+	 * Show a drop down list to select a group as well as a user name
+	 * search box.
+	 * @todo localize
+	 */
+	function getPageHeader( ) {
+		$self = $this->getTitle();
+
+		# Form tag
+		$out = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $self->getLocalUrl() ) );
+		
+		# Group drop-down list
+		$out .= wfElement( 'label', array( 'for' => 'group' ), wfMsg( 'group' ) ) . ' ';
+		$out .= wfOpenElement( 'select', array( 'name' => 'group' ) );
+		$out .= wfElement( 'option', array( 'value' => '' ), wfMsg( 'group-all' ) ); # Item for "all groups"
+		$groups = User::getAllGroups();
+		foreach( $groups as $group ) {
+			$attribs = array( 'value' => $group );
+			if( $group == $this->requestedGroup )
+				$attribs['selected'] = 'selected';
+			$out .= wfElement( 'option', $attribs, User::getGroupName( $group ) );
+		}
+		$out .= wfCloseElement( 'select' ) . ' ';;# . wfElement( 'br' );
+
+		# Username field
+		$out .= wfElement( 'label', array( 'for' => 'username' ), wfMsg( 'specialloguserlabel' ) ) . ' ';
+		$out .= wfElement( 'input', array( 'type' => 'text', 'id' => 'username', 'name' => 'username',
+							'value' => $this->requestedUser ) ) . ' ';
+
+		# Preserve offset and limit
+		if( $this->offset )
+			$out .= wfElement( 'input', array( 'type' => 'hidden', 'name' => 'offset', 'value' => $this->offset ) );
+		if( $this->limit )
+			$out .= wfElement( 'input', array( 'type' => 'hidden', 'name' => 'limit', 'value' => $this->limit ) );
+
+		# Submit button and form bottom
+		$out .= wfElement( 'input', array( 'type' => 'submit', 'value' => wfMsg( 'allpagessubmit' ) ) );
+		$out .= wfCloseElement( 'form' );
+
+		return $out;
+	}
+
+	function getSQL() {
+		$dbr =& wfGetDB( DB_SLAVE );
+		$user = $dbr->tableName( 'user' );
+		$user_groups = $dbr->tableName( 'user_groups' );
+
+		// We need to get an 'atomic' list of users, so that we
+		// don't break the list half-way through a user's group set
+		// and so that lists by group will show all group memberships.
+		//
+		// On MySQL 4.1 we could use GROUP_CONCAT to grab group
+		// assignments together with users pretty easily. On other
+		// versions, it's not so easy to do it consistently.
+		// For now we'll just grab the number of memberships, so
+		// we can then do targetted checks on those who are in
+		// non-default groups as we go down the list.
+
+		$userspace = NS_USER;
+		$sql = "SELECT 'Listusers' as type, $userspace AS namespace, user_name AS title, " .
+			"user_name as value, user_id, COUNT(ug_group) as numgroups " .
+			"FROM $user ".
+			"LEFT JOIN $user_groups ON user_id=ug_user " .
+			$this->userQueryWhere( $dbr ) .
+			" GROUP BY user_name";
+
+		return $sql;
+	}
+
+	function userQueryWhere( &$dbr ) {
+		$conds = $this->userQueryConditions();
+		return empty( $conds )
+			? ""
+			: "WHERE " . $dbr->makeList( $conds, LIST_AND );
+	}
+
+	function userQueryConditions() {
+		$conds = array();
+		if( $this->requestedGroup != '' ) {
+			$conds['ug_group'] = $this->requestedGroup;
+		}
+		if( $this->requestedUser != '' ) {
+			$conds['user_name'] = $this->requestedUser;
+		}
+		return $conds;
+	}
+
+	function linkParameters() {
+		$conds = array();
+		if( $this->requestedGroup != '' ) {
+			$conds['group'] = $this->requestedGroup;
+		}
+		if( $this->requestedUser != '' ) {
+			$conds['username'] = $this->requestedUser;
+		}
+		return $conds;
+	}
+
+	function sortDescending() {
+		return false;
+	}
+
+	function formatResult( $skin, $result ) {
+		$userPage = Title::makeTitle( $result->namespace, $result->title );
+		$name = $skin->makeLinkObj( $userPage, htmlspecialchars( $userPage->getText() ) );
+		$groups = null;
+
+		if( !isset( $result->numgroups ) || $result->numgroups > 0 ) {
+			$dbr =& wfGetDB( DB_SLAVE );
+			$result = $dbr->select( 'user_groups',
+				array( 'ug_group' ),
+				array( 'ug_user' => $result->user_id ),
+				'ListUsersPage::formatResult' );
+			$groups = array();
+			while( $row = $dbr->fetchObject( $result ) ) {
+				$groups[$row->ug_group] = User::getGroupMember( $row->ug_group );
+			}
+			$dbr->freeResult( $result );
+
+			if( count( $groups ) > 0 ) {
+				foreach( $groups as $group => $desc ) {
+					if( $page = User::getGroupPage( $group ) ) {
+						$list[] = $skin->makeLinkObj( $page, htmlspecialchars( $desc ) );
+					} else {
+						$list[] = htmlspecialchars( $desc );
+					}
+				}
+				$groups = implode( ', ', $list );
+			} else {
+				$groups = '';
+			}				
+
+		}
+
+		return wfSpecialList( $name, $groups );
+	}
+}
+
+/**
+ * constructor
+ * $par string (optional) A group to list users from
+ */
+function wfSpecialListusers( $par = null ) {
+	global $wgRequest, $wgContLang;
+
+	list( $limit, $offset ) = wfCheckLimits();
+
+
+	$slu = new ListUsersPage();
+
+	/**
+	 * Get some parameters
+	 */
+	$groupTarget = isset($par) ? $par : $wgRequest->getVal( 'group' );
+	$slu->requestedGroup = $groupTarget;
+
+	# 'Validate' the username first
+	$username = $wgRequest->getText( 'username', '' );
+	$user = User::newFromName( $username );
+	$slu->requestedUser = is_object( $user ) ? $user->getName() : '';
+
+	return $slu->doQuery( $offset, $limit );
+}
+
+?>