317 lines
10 KiB
PHP
317 lines
10 KiB
PHP
<?php
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/**
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* User administration code.
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*
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* @author Jan Dittberner <jan@dittberner.info>
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* @version $Id$
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* @license GPL
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* @package WebDAVAdmin
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*
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* Copyright (c) 2007 Jan Dittberner
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*
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* This file is part of WebDAVAdmin.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA.
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*/
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/** Include common code. */
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include_once('common.inc.php');
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/**
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* Gets XML encoded data for a user.
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*
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* @param int $uid user id
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* @return XML string
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*/
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function getUserData($uid) {
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if (!is_numeric($uid)) {
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errorAsXml(sprintf(_("Invalid user id %s"), $uid));
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}
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try {
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$currentuser = $_SERVER['PHP_AUTH_USER'];
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$dbh = new PDO($GLOBALS['dsn'], $GLOBALS['dbuser'], $GLOBALS['dbpass']);
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$sth = $dbh->prepare("SELECT groupname FROM dav_group, dav_password WHERE dav_group.username=dav_password.username AND dav_password.uid=:uid");
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if (!$sth->execute(array(':uid' => $uid))) {
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statementErrorAsXml($sth);
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}
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$groups = array();
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while ($grouprow = $sth->fetch(PDO::FETCH_ASSOC)) {
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array_push($groups, $grouprow['groupname']);
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}
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$sth = $dbh->prepare("SELECT username, firstname, lastname FROM dav_password WHERE uid=:uid");
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if (!$sth->execute(array(':uid' => $uid))) {
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statementErrorAsXml($sth);
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}
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$row = $sth->fetch(PDO::FETCH_ASSOC);
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$retval = sprintf('<?xml version="1.0" encoding="utf8"?><userdata><uid>%d</uid><username>%s</username><firstname>%s</firstname><lastname>%s</lastname><groups>%s</groups><loggedin>%d</loggedin></userdata>',
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$uid, $row['username'], $row['firstname'],
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$row['lastname'], implode(", ", $groups),
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($currentuser == $row['username']) ? 1 : 0);
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$dbh = null;
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} catch (PDOException $e) {
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errorAsXml($e->getMessage());
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}
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header("Content-Type: text/xml; charset=UTF-8");
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return $retval;
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}
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/**
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* Gets XML encoded data for a deleted user.
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*
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* @param int $uid user id
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* @return XML string
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*/
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function getDeletedUserData($uid) {
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if (!is_numeric($uid)) {
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errorAsXml(sprintf(_("Invalid user id %s"), $uid));
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}
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return sprintf('<?xml version="1.0" encoding="utf8"?><userdata><uid>%d</uid></userdata>', $uid);
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}
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/**
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* Validates the given user data array for correctness.
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*
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* @param array &$userdata reference to an user data array
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* @param boolean $forinsert if this is true the check skips field
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* that will be created during insert
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* @return an array with validation error messages or an empty array
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*/
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function validateUserData(&$userdata, $forinsert) {
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$errormsgs = array();
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// normalize the user data array
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foreach ($userdata as $key => $value) {
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$userdata[$key] = trim($value);
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}
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if (!$forinsert) {
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if (!is_numeric($userdata['uid'])) {
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array_push($errormsgs, _("Uid must be numeric."));
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}
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if (!empty($userdata['password']) && strlen($userdata['password']) < 8) {
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array_push($errormsgs, _("Password must be at least 8 characters long."));
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}
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} else {
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if (!preg_match('/^[a-zA-Z0-9]{2,}$/', $userdata['username'])) {
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array_push($errormsgs, _("Username must be at least 2 characters long and must contain letters and digits only."));
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}
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if (empty($userdata['password']) || strlen($userdata['password']) < 8) {
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array_push($errormsgs, _("Password must be at least 8 characters long."));
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}
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}
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if (empty($userdata['firstname'])) {
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$userdata['firstname'] = null;
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}
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if (empty($userdata['lastname'])) {
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$userdata['lastname'] = null;
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}
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if (!preg_match('/^([0-9a-zA-z]+[,\s]*)+$/', $userdata['groups'])) {
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array_push($errormsgs, _('Groups must be a list of group names separated by commas. Group names must consist of letters and digits.'));
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}
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return $errormsgs;
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}
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/**
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* Updates the data of a user in the database.
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*
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* @param array &$userdata reference to a user data array
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*/
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function updateUser(&$userdata) {
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$validation = validateUserData($userdata, false);
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if (!empty($validation)) {
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errorAsXml(implode("\n", $validation));
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}
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try {
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$dbh = new PDO($GLOBALS['dsn'], $GLOBALS['dbuser'], $GLOBALS['dbpass']);
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$dbh->beginTransaction();
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if ($userdata['password']) {
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$sth = $dbh->prepare("UPDATE dav_password SET firstname=:firstname, lastname=:lastname, password=md5(:password) WHERE uid=:uid");
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if (!$sth->execute(array(':firstname' => $userdata['firstname'],
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':lastname' => $userdata['lastname'],
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':password' => $userdata['password'],
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':uid' => $userdata['uid']))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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} else {
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$sth = $dbh->prepare("UPDATE dav_password SET firstname=:firstname, lastname=:lastname WHERE uid=:uid");
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if (!$sth->execute(array(':firstname' => $userdata['firstname'],
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':lastname' => $userdata['lastname'],
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':uid' => $userdata['uid']))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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}
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if ($userdata['groups']) {
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$groups = array();
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$sth = $dbh->prepare("DELETE FROM dav_group WHERE username=:username");
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if (!$sth->execute(array(':username' => $userdata['username']))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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$sth = $dbh->prepare("INSERT INTO dav_group (username, groupname) VALUES (:username, :groupname)");
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foreach (explode(",", $userdata['groups']) as $group) {
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$group = trim($group);
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if (!in_array($group, $groups)) {
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array_push($groups, $group);
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if (!$sth->execute(array(':username' => $userdata['username'],
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':groupname' => $group))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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$sth->closeCursor();
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}
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}
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}
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$dbh->commit();
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$dbh = null;
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} catch (PDOException $e) {
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errorAsXml($e->getMessage());
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}
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}
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/**
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* Inserts a new user and its group assignments into the database.
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*
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* @param array &$userdata reference to an user data array
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*/
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function insertUser(&$userdata) {
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$validation = validateUserData($userdata, true);
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if (!empty($validation)) {
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errorAsXml(implode("\n", $validation));
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}
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try {
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$dbh = new PDO($GLOBALS['dsn'], $GLOBALS['dbuser'], $GLOBALS['dbpass']);
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$dbh->beginTransaction();
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$sth = $dbh->prepare("INSERT INTO dav_password (username, firstname, lastname, password) VALUES (:username, :firstname, :lastname, md5(:password))");
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if (!$sth->execute(array(':username' => $userdata['username'],
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':firstname' => $userdata['firstname'],
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':lastname' => $userdata['lastname'],
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':password' => $userdata['password']))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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$uid = $dbh->lastInsertId('dav_password_uid_seq');
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$groups = array();
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$sth = $dbh->prepare("INSERT INTO dav_group (username, groupname) VALUES (:username, :groupname)");
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foreach (split(",", $userdata['groups']) as $group) {
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$group = trim($group);
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if (!in_array($group, $groups)) {
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array_push($groups, $group);
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if (!$sth->execute(array(':username' => $userdata['username'],
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':groupname' => $group))) {
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$dbh->rollback();
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statementErrorAsXml($sth);
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}
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$sth->closeCursor();
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}
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}
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$dbh->commit();
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$dbh = null;
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} catch (PDOException $e) {
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errorAsXml($e->getMessage);
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}
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return $uid;
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}
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/**
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* Delete the user with the given user id and its group assignments
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* from the database.
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*
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* @param int $uid user id
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*/
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function deleteUser($uid) {
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if (!is_numeric($uid)) {
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errorAsXml(sprintf(_("Invalid user id %s"), $uid));
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}
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try {
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$dbh = new PDO($GLOBALS['dsn'], $GLOBALS['dbuser'], $GLOBALS['dbpass']);
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$dbh->beginTransaction();
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$query = $dbh->prepare("DELETE FROM dav_group WHERE username IN (SELECT username FROM dav_password WHERE uid=:uid)");
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if (!$query->execute(array(':uid' => $uid))) {
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$dbh->rollback();
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statementErrorAsXml($query);
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}
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$query = $dbh->prepare("DELETE FROM dav_password WHERE uid=:uid");
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if (!$query->execute(array(':uid' => $uid))) {
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$dbh->rollback();
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statementErrorAsXml($query);
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}
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$dbh->commit();
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$dbh = null;
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} catch (PDOException $e) {
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errorAsXml($e->getMessage());
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}
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}
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if ($_GET) {
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if ($_GET['method']) {
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switch ($_GET['method']) {
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case 'getuserdata':
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if ($_GET['uid']) {
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print getUserData($_GET['uid']);
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}
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break;
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default:
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errorAsXml(sprintf(_("Unexpected values %s!"), serialize($_GET)));
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}
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} else {
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invalidCall();
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}
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} elseif ($_POST) {
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if ($_POST['method']) {
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switch ($_POST['method']) {
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case 'submituser':
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if ($_POST['uid']) {
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updateUser($_POST);
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print getUserData($_POST['uid']);
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} else {
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print getUserData(insertUser($_POST));
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}
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break;
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case 'deleteuser':
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if ($_POST['uid']) {
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deleteUser($_POST['uid']);
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print getDeletedUserData($_POST['uid']);
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} else {
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errorAsXml(sprintf(_("Unexpected values %s!"), serialize($_POST)));
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}
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break;
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default:
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errorAsXml(sprintf(_("Unexpected values %s!"), serialize($_POST)));
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}
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} else {
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invalidCall();
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}
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} else {
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$currentuser = $_SERVER['PHP_AUTH_USER'];
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header("Content-Type: text/html; charset=UTF-8");
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try {
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$dbh = new PDO($dsn, $dbuser, $dbpass);
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$query = $dbh->prepare("SELECT uid, username, firstname, lastname FROM dav_password ORDER BY username");
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$query->execute();
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$rows = $query->fetchall(PDO::FETCH_ASSOC);
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foreach ($rows as $key => $value) {
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$value['loggedin'] = ($value['username'] == $currentuser);
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$rows[$key] = $value;
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}
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$smarty->assign("users", $rows);
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$smarty->display("users.html");
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} catch (PDOException $e) {
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errorAsHtml($e->getMessage());
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}
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}
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?>
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