14f617d641
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@345 b3834d28-1941-0410-a4f8-b48e95affb8f
648 lines
19 KiB
PHP
648 lines
19 KiB
PHP
<?php
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class UserService {
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var $db;
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var $fields = array(
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'primary' => 'uId',
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'username' => 'username',
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'password' => 'password');
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var $profileurl;
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var $tablename;
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var $sessionkey;
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var $cookiekey;
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var $cookietime = 1209600; // 2 weeks
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function &getInstance(&$db) {
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static $instance;
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if (!isset($instance))
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$instance =& new UserService($db);
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return $instance;
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}
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function UserService(& $db) {
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$this->db =& $db;
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$this->tablename = $GLOBALS['tableprefix'] .'users';
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$this->sessionkey = INSTALLATION_ID.'-currentuserid';
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$this->cookiekey = INSTALLATION_ID.'-login';
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$this->profileurl = createURL('profile', '%2$s');
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$this->updateSessionStability();
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}
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function _checkdns($host) {
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if (function_exists('checkdnsrr')) {
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return checkdnsrr($host);
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} else {
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return $this->_checkdnsrr($host);
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}
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}
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function _checkdnsrr($host, $type = "MX") {
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if(!empty($host)) {
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@exec("nslookup -type=$type $host", $output);
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while(list($k, $line) = each($output)) {
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if(eregi("^$host", $line)) {
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return true;
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}
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}
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return false;
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}
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}
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function _getuser($fieldname, $value) {
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$query = 'SELECT * FROM '. $this->getTableName() .' WHERE '. $fieldname .' = "'. $this->db->sql_escape($value) .'"';
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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$row =& $this->db->sql_fetchrow($dbresult);
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$this->db->sql_freeresult($dbresult);
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if ($row) {
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return $row;
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} else {
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return false;
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}
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}
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function & getUsers($nb=0) {
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$query = 'SELECT * FROM '. $this->getTableName() .' ORDER BY `uId` DESC';
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if($nb>0) {
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$query .= ' LIMIT 0, '.$nb;
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}
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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while ($row = & $this->db->sql_fetchrow($dbresult)) {
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$users[] = $row;
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}
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$this->db->sql_freeresult($dbresult);
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return $users;
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}
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function & getObjectUsers($nb=0) {
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$query = 'SELECT * FROM '. $this->getTableName() .' ORDER BY `uId` DESC';
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if($nb>0) {
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$query .= ' LIMIT 0, '.$nb;
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}
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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while ($row = & $this->db->sql_fetchrow($dbresult)) {
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$users[] = new User($row[$this->getFieldName('primary')], $row[$this->getFieldName('username')]);
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}
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$this->db->sql_freeresult($dbresult);
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return $users;
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}
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function _randompassword() {
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$seed = (integer) md5(microtime());
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mt_srand($seed);
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$password = mt_rand(1, 99999999);
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$password = substr(md5($password), mt_rand(0, 19), mt_rand(6, 12));
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return $password;
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}
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function _updateuser($uId, $fieldname, $value) {
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$updates = array ($fieldname => $value);
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$sql = 'UPDATE '. $this->getTableName() .' SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE '. $this->getFieldName('primary') .'='. intval($uId);
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// Execute the statement.
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$this->db->sql_transaction('begin');
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if (!($dbresult = & $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not update user', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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$this->db->sql_transaction('commit');
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// Everything worked out, so return true.
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return true;
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}
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function getProfileUrl($id, $username) {
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return sprintf($this->profileurl, urlencode($id), urlencode($username));
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}
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function getUserByUsername($username) {
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return $this->_getuser($this->getFieldName('username'), $username);
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}
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function getObjectUserByUsername($username) {
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$user = $this->_getuser($this->getFieldName('username'), $username);
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if($user != false) {
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return new User($user[$this->getFieldName('primary')], $username);
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} else {
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return NULL;
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}
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}
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/* Takes an numerical "id" or a string "username"
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and returns the numerical "id" if the user exists else returns NULL */
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function getIdFromUser($user) {
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if (is_int($user)) {
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return intval($user);
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} else {
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$objectUser = $this->getObjectUserByUsername($user);
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if($objectUser != NULL) {
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return $objectUser->getId();
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}
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}
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return NULL;
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}
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function getUser($id) {
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return $this->_getuser($this->getFieldName('primary'), $id);
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}
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// Momentary useful in order to go to object code
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function getObjectUser($id) {
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$user = $this->_getuser($this->getFieldName('primary'), $id);
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return new User($id, $user[$this->getFieldName('username')]);
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}
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function isLoggedOn() {
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return ($this->getCurrentUserId() !== false);
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}
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function &getCurrentUser($refresh = FALSE, $newval = NULL) {
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static $currentuser;
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if (!is_null($newval)) { //internal use only: reset currentuser
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$currentuser = $newval;
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} else if ($refresh || !isset($currentuser)) {
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if ($id = $this->getCurrentUserId()) {
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$currentuser = $this->getUser($id);
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} else {
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$currentuser = null;
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}
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}
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return $currentuser;
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}
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// Momentary useful in order to go to object code
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function getCurrentObjectUser($refresh = FALSE, $newval = NULL) {
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static $currentObjectUser;
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if (!is_null($newval)) { //internal use only: reset currentuser
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$currentObjectUser = $newval;
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} else if ($refresh || !isset($currentObjectUser)) {
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if ($id = $this->getCurrentUserId()) {
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$currentObjectUser = $this->getObjectUser($id);
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} else {
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$currentObjectUser = null;
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}
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}
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return $currentObjectUser;
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}
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function existsUserWithUsername($username) {
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if($this->getUserByUsername($username) != '') {
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return true;
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} else {
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return false;
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}
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}
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function existsUser($id) {
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if($this->getUser($id) != '') {
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return true;
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} else {
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return false;
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}
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}
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function isAdmin($userid) {
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$user = $this->getUser($userid);
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if(isset($GLOBALS['admin_users'])
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&& in_array($user['username'], $GLOBALS['admin_users'])) {
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return true;
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} else {
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return false;
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}
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}
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/* return current user id based on session or cookie */
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function getCurrentUserId() {
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if (isset($_SESSION[$this->getSessionKey()])) {
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return $_SESSION[$this->getSessionKey()];
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} else if (isset($_COOKIE[$this->getCookieKey()])) {
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$cook = split(':', $_COOKIE[$this->getCookieKey()]);
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//cookie looks like this: 'id:md5(username+password)'
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$query = 'SELECT * FROM '. $this->getTableName() .
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' WHERE MD5(CONCAT('.$this->getFieldName('username') .
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', '.$this->getFieldName('password') .
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')) = \''.$this->db->sql_escape($cook[1]).'\' AND '.
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$this->getFieldName('primary'). ' = '. $this->db->sql_escape($cook[0]);
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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if ($row = $this->db->sql_fetchrow($dbresult)) {
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$_SESSION[$this->getSessionKey()] = $row[$this->getFieldName('primary')];
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$this->db->sql_freeresult($dbresult);
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return $_SESSION[$this->getSessionKey()];
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}
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}
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return false;
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}
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function login($username, $password, $remember = FALSE) {
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$password = $this->sanitisePassword($password);
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$query = 'SELECT '. $this->getFieldName('primary') .' FROM '. $this->getTableName() .' WHERE '. $this->getFieldName('username') .' = "'. $this->db->sql_escape($username) .'" AND '. $this->getFieldName('password') .' = "'. $this->db->sql_escape($password) .'"';
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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if ($row =& $this->db->sql_fetchrow($dbresult)) {
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$id = $_SESSION[$this->getSessionKey()] = $row[$this->getFieldName('primary')];
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if ($remember) {
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$cookie = $id .':'. md5($username.$password);
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setcookie($this->cookiekey, $cookie, time() + $this->cookietime, '/');
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}
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$this->db->sql_freeresult($dbresult);
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return true;
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} else {
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return false;
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}
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}
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function logout() {
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@setcookie($this->getCookiekey(), '', time() - 1, '/');
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unset($_COOKIE[$this->getCookiekey()]);
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session_unset();
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$this->getCurrentUser(TRUE, false);
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}
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function getWatchlist($uId) {
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// Gets the list of user IDs being watched by the given user.
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$query = 'SELECT watched FROM '. $GLOBALS['tableprefix'] .'watched WHERE uId = '. intval($uId);
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get watchlist', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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$arrWatch = array();
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if ($this->db->sql_numrows($dbresult) == 0)
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return $arrWatch;
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while ($row =& $this->db->sql_fetchrow($dbresult))
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$arrWatch[] = $row['watched'];
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return $arrWatch;
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}
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function getWatchNames($uId, $watchedby = false) {
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// Gets the list of user names being watched by the given user.
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// - If $watchedby is false get the list of users that $uId watches
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// - If $watchedby is true get the list of users that watch $uId
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if ($watchedby) {
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$table1 = 'b';
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$table2 = 'a';
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} else {
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$table1 = 'a';
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$table2 = 'b';
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}
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$query = 'SELECT '. $table1 .'.'. $this->getFieldName('username') .' FROM '. $GLOBALS['tableprefix'] .'watched AS W, '. $this->getTableName() .' AS a, '. $this->getTableName() .' AS b WHERE W.watched = a.'. $this->getFieldName('primary') .' AND W.uId = b.'. $this->getFieldName('primary') .' AND '. $table2 .'.'. $this->getFieldName('primary') .' = '. intval($uId) .' ORDER BY '. $table1 .'.'. $this->getFieldName('username');
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if (!($dbresult =& $this->db->sql_query($query))) {
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message_die(GENERAL_ERROR, 'Could not get watchlist', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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$arrWatch = array();
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if ($this->db->sql_numrows($dbresult) == 0) {
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$this->db->sql_freeresult($dbresult);
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return $arrWatch;
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}
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while ($row =& $this->db->sql_fetchrow($dbresult)) {
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$arrWatch[] = $row[$this->getFieldName('username')];
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}
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$this->db->sql_freeresult($dbresult);
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return $arrWatch;
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}
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function getWatchStatus($watcheduser, $currentuser) {
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// Returns true if the current user is watching the given user, and false otherwise.
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$query = 'SELECT watched FROM '. $GLOBALS['tableprefix'] .'watched AS W INNER JOIN '. $this->getTableName() .' AS U ON U.'. $this->getFieldName('primary') .' = W.watched WHERE U.'. $this->getFieldName('primary') .' = '. intval($watcheduser) .' AND W.uId = '. intval($currentuser);
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get watchstatus', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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$arrWatch = array();
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if ($this->db->sql_numrows($dbresult) == 0)
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return false;
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else
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return true;
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}
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function setWatchStatus($subjectUserID) {
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if (!is_numeric($subjectUserID))
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return false;
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$currentUserID = $this->getCurrentUserId();
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$watched = $this->getWatchStatus($subjectUserID, $currentUserID);
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if ($watched) {
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$sql = 'DELETE FROM '. $GLOBALS['tableprefix'] .'watched WHERE uId = '. intval($currentUserID) .' AND watched = '. intval($subjectUserID);
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if (!($dbresult =& $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not add user to watch list', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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} else {
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$values = array(
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'uId' => intval($currentUserID),
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'watched' => intval($subjectUserID)
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);
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$sql = 'INSERT INTO '. $GLOBALS['tableprefix'] .'watched '. $this->db->sql_build_array('INSERT', $values);
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if (!($dbresult =& $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not add user to watch list', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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}
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$this->db->sql_transaction('commit');
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return true;
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}
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function addUser($username, $password, $email) {
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// Set up the SQL UPDATE statement.
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$datetime = gmdate('Y-m-d H:i:s', time());
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$password = $this->sanitisePassword($password);
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$values = array('username' => $username, 'password' => $password, 'email' => $email, 'uDatetime' => $datetime, 'uModified' => $datetime);
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$sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
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// Execute the statement.
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$this->db->sql_transaction('begin');
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if (!($dbresult = & $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not insert user', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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$this->db->sql_transaction('commit');
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// Everything worked out, so return true.
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return true;
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}
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function updateUser($uId, $password, $name, $email, $homepage, $uContent) {
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if (!is_numeric($uId))
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return false;
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// Set up the SQL UPDATE statement.
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$moddatetime = gmdate('Y-m-d H:i:s', time());
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if ($password == '')
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$updates = array ('uModified' => $moddatetime, 'name' => $name, 'email' => $email, 'homepage' => $homepage, 'uContent' => $uContent);
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else
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$updates = array ('uModified' => $moddatetime, 'password' => $this->sanitisePassword($password), 'name' => $name, 'email' => $email, 'homepage' => $homepage, 'uContent' => $uContent);
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$sql = 'UPDATE '. $this->getTableName() .' SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE '. $this->getFieldName('primary') .'='. intval($uId);
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// Execute the statement.
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$this->db->sql_transaction('begin');
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if (!($dbresult = & $this->db->sql_query($sql))) {
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$this->db->sql_transaction('rollback');
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message_die(GENERAL_ERROR, 'Could not update user', '', __LINE__, __FILE__, $sql, $this->db);
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return false;
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}
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$this->db->sql_transaction('commit');
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// Everything worked out, so return true.
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return true;
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}
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function getAllUsers ( ) {
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$query = 'SELECT * FROM '. $this->getTableName();
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if (! ($dbresult =& $this->db->sql_query($query)) ) {
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message_die(GENERAL_ERROR, 'Could not get users', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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$rows = array();
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while ( $row = $this->db->sql_fetchrow($dbresult) ) {
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$rows[] = $row;
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}
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$this->db->sql_freeresult($dbresult);
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return $rows;
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}
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// Returns an array with admin uIds
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function getAdminIds() {
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$admins = array();
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foreach($GLOBALS['admin_users'] as $adminName) {
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if($this->getIdFromUser($adminName) != NULL)
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$admins[] = $this->getIdFromUser($adminName);
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}
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return $admins;
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}
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function deleteUser($uId) {
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$query = 'DELETE FROM '. $this->getTableName() .' WHERE uId = '. intval($uId);
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if (!($dbresult = & $this->db->sql_query($query))) {
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message_die(GENERAL_ERROR, 'Could not delete user', '', __LINE__, __FILE__, $query, $this->db);
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return false;
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}
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return true;
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}
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function sanitisePassword($password) {
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return sha1(trim($password));
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}
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function generatePassword($uId) {
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if (!is_numeric($uId))
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return false;
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$password = $this->_randompassword();
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if ($this->_updateuser($uId, $this->getFieldName('password'), $this->sanitisePassword($password)))
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return $password;
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else
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return false;
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}
|
|
|
|
function isReserved($username) {
|
|
if (in_array($username, $GLOBALS['reservedusers'])) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function isValidUsername($username) {
|
|
if (strlen($username) < 4) {
|
|
return false;
|
|
}elseif (strlen($username) > 24) {
|
|
// too long usernames are cut by database and may cause bugs when compared
|
|
return false;
|
|
} elseif (preg_match('/(\W)/', $username) > 0) {
|
|
// forbidden non-alphanumeric characters
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
function isValidEmail($email) {
|
|
if (eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,6})$", $email)) {
|
|
list($emailUser, $emailDomain) = split("@", $email);
|
|
|
|
// Check if the email domain has a DNS record
|
|
//if ($this->_checkdns($emailDomain)) {
|
|
return true;
|
|
//}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets a session variable.
|
|
* Updates it when it is already set.
|
|
* This is used to detect if cookies work.
|
|
*
|
|
* @return void
|
|
*
|
|
* @see isSessionStable()
|
|
*/
|
|
function updateSessionStability() {
|
|
//find out if we have cookies enabled
|
|
if (!isset($_SESSION['sessionStable']))) {
|
|
$_SESSION['sessionStable'] = 0;
|
|
} else {
|
|
$_SESSION['sessionStable'] = 1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tells you if the session is fresh or old.
|
|
* If the session is fresh, it's the first page
|
|
* call with that session id. If the session is old,
|
|
* we know that cookies (or session persistance) works
|
|
*
|
|
* @return boolean True if the
|
|
*
|
|
* @see updateSessionStability()
|
|
*/
|
|
function isSessionStable() {
|
|
return $_SESSION['sessionStable'] == 1;
|
|
}
|
|
|
|
// Properties
|
|
function getTableName() { return $this->tablename; }
|
|
function setTableName($value) { $this->tablename = $value; }
|
|
|
|
function getFieldName($field) { return $this->fields[$field]; }
|
|
function setFieldName($field, $value) { $this->fields[$field] = $value; }
|
|
|
|
function getSessionKey() { return $this->sessionkey; }
|
|
function setSessionKey($value) { $this->sessionkey = $value; }
|
|
|
|
function getCookieKey() { return $this->cookiekey; }
|
|
function setCookieKey($value) { $this->cookiekey = $value; }
|
|
}
|
|
|
|
|
|
/* Defines a user. Rare fields are filled if required. */
|
|
class User {
|
|
|
|
var $id;
|
|
var $username;
|
|
var $name;
|
|
var $email;
|
|
var $homepage;
|
|
var $content;
|
|
var $datetime;
|
|
var $isAdmin;
|
|
|
|
function User($id, $username) {
|
|
$this->id = $id;
|
|
$this->username = $username;
|
|
}
|
|
|
|
function getId() {
|
|
return $this->id;
|
|
}
|
|
|
|
function getUsername() {
|
|
return $this->username;
|
|
}
|
|
|
|
function getName() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->name)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$user = $userservice->getUser($this->id);
|
|
$this->name = $user['name'];
|
|
}
|
|
return $this->name;
|
|
}
|
|
|
|
function getEmail() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->email)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$user = $userservice->getUser($this->id);
|
|
$this->email = $user['email'];
|
|
}
|
|
return $this->email;
|
|
}
|
|
|
|
function getHomepage() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->homepage)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$user = $userservice->getUser($this->id);
|
|
$this->homepage = $user['homepage'];
|
|
}
|
|
return $this->homepage;
|
|
}
|
|
|
|
function getContent() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->content)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$user = $userservice->getUser($this->id);
|
|
$this->content = $user['uContent'];
|
|
}
|
|
return $this->content;
|
|
}
|
|
|
|
function getDatetime() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->content)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$user = $userservice->getUser($this->id);
|
|
$this->datetime = $user['uDatetime'];
|
|
}
|
|
return $this->datetime;
|
|
}
|
|
|
|
function isAdmin() {
|
|
// Look for value only if not already set
|
|
if(!isset($this->isAdmin)) {
|
|
$userservice =& ServiceFactory::getServiceInstance('UserService');
|
|
$this->isAdmin = $userservice->isAdmin($this->id);
|
|
}
|
|
return $this->isAdmin;
|
|
}
|
|
|
|
function getNbBookmarks($range = 'public') {
|
|
$bookmarkservice =& ServiceFactory::getServiceInstance('BookmarkService');
|
|
return $bookmarkservice->countBookmarks($this->getId(), $range);
|
|
}
|
|
}
|
|
?>
|