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-rw-r--r--src/SemanticScuttle/Service/userservice.php665
1 files changed, 665 insertions, 0 deletions
diff --git a/src/SemanticScuttle/Service/userservice.php b/src/SemanticScuttle/Service/userservice.php
new file mode 100644
index 0000000..407632b
--- /dev/null
+++ b/src/SemanticScuttle/Service/userservice.php
@@ -0,0 +1,665 @@
+<?php
+class UserService {
+ var $db;
+ var $fields = array(
+ 'primary' => 'uId',
+ 'username' => 'username',
+ 'password' => 'password');
+ var $profileurl;
+ var $tablename;
+ var $sessionkey;
+ var $cookiekey;
+ var $cookietime = 1209600; // 2 weeks
+
+ function &getInstance(&$db) {
+ static $instance;
+ if (!isset($instance))
+ $instance =& new UserService($db);
+ return $instance;
+ }
+
+ function UserService(& $db) {
+ $this->db =& $db;
+ $this->tablename = $GLOBALS['tableprefix'] .'users';
+ $this->sessionkey = INSTALLATION_ID.'-currentuserid';
+ $this->cookiekey = INSTALLATION_ID.'-login';
+ $this->profileurl = createURL('profile', '%2$s');
+ $this->updateSessionStability();
+ }
+
+ function _checkdns($host) {
+ if (function_exists('checkdnsrr')) {
+ return checkdnsrr($host);
+ } else {
+ return $this->_checkdnsrr($host);
+ }
+ }
+
+ function _checkdnsrr($host, $type = "MX") {
+ if(!empty($host)) {
+ @exec("nslookup -type=$type $host", $output);
+ while(list($k, $line) = each($output)) {
+ if(eregi("^$host", $line)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ }
+
+ function _getuser($fieldname, $value) {
+ $query = 'SELECT * FROM '. $this->getTableName() .' WHERE '. $fieldname .' = "'. $this->db->sql_escape($value) .'"';
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ $row =& $this->db->sql_fetchrow($dbresult);
+ $this->db->sql_freeresult($dbresult);
+ if ($row) {
+ return $row;
+ } else {
+ return false;
+ }
+ }
+
+ function & getUsers($nb=0) {
+ $query = 'SELECT * FROM '. $this->getTableName() .' ORDER BY `uId` DESC';
+ if($nb>0) {
+ $query .= ' LIMIT 0, '.$nb;
+ }
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ while ($row = & $this->db->sql_fetchrow($dbresult)) {
+ $users[] = $row;
+ }
+ $this->db->sql_freeresult($dbresult);
+ return $users;
+ }
+
+ function & getObjectUsers($nb=0) {
+ $query = 'SELECT * FROM '. $this->getTableName() .' ORDER BY `uId` DESC';
+ if($nb>0) {
+ $query .= ' LIMIT 0, '.$nb;
+ }
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ while ($row = & $this->db->sql_fetchrow($dbresult)) {
+ $users[] = new User($row[$this->getFieldName('primary')], $row[$this->getFieldName('username')]);
+ }
+ $this->db->sql_freeresult($dbresult);
+ return $users;
+ }
+
+ function _randompassword() {
+ $seed = (integer) md5(microtime());
+ mt_srand($seed);
+ $password = mt_rand(1, 99999999);
+ $password = substr(md5($password), mt_rand(0, 19), mt_rand(6, 12));
+ return $password;
+ }
+
+ function _updateuser($uId, $fieldname, $value) {
+ $updates = array ($fieldname => $value);
+ $sql = 'UPDATE '. $this->getTableName() .' SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE '. $this->getFieldName('primary') .'='. intval($uId);
+
+ // Execute the statement.
+ $this->db->sql_transaction('begin');
+ if (!($dbresult = & $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not update user', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+ $this->db->sql_transaction('commit');
+
+ // Everything worked out, so return true.
+ return true;
+ }
+
+ function getProfileUrl($id, $username) {
+ return sprintf($this->profileurl, urlencode($id), urlencode($username));
+ }
+
+ function getUserByUsername($username) {
+ return $this->_getuser($this->getFieldName('username'), $username);
+ }
+
+ function getObjectUserByUsername($username) {
+ $user = $this->_getuser($this->getFieldName('username'), $username);
+ if($user != false) {
+ return new User($user[$this->getFieldName('primary')], $username);
+ } else {
+ return NULL;
+ }
+ }
+
+ /* Takes an numerical "id" or a string "username"
+ and returns the numerical "id" if the user exists else returns NULL */
+ function getIdFromUser($user) {
+ if (is_int($user)) {
+ return intval($user);
+ } else {
+ $objectUser = $this->getObjectUserByUsername($user);
+ if($objectUser != NULL) {
+ return $objectUser->getId();
+ }
+ }
+ return NULL;
+ }
+
+ function getUser($id) {
+ return $this->_getuser($this->getFieldName('primary'), $id);
+ }
+
+ // Momentary useful in order to go to object code
+ function getObjectUser($id) {
+ $user = $this->_getuser($this->getFieldName('primary'), $id);
+ return new User($id, $user[$this->getFieldName('username')]);
+ }
+
+ function isLoggedOn() {
+ return ($this->getCurrentUserId() !== false);
+ }
+
+ function &getCurrentUser($refresh = FALSE, $newval = NULL) {
+ static $currentuser;
+ if (!is_null($newval)) { //internal use only: reset currentuser
+ $currentuser = $newval;
+ } else if ($refresh || !isset($currentuser)) {
+ if ($id = $this->getCurrentUserId()) {
+ $currentuser = $this->getUser($id);
+ } else {
+ $currentuser = null;
+ }
+ }
+ return $currentuser;
+ }
+
+ // Momentary useful in order to go to object code
+ function getCurrentObjectUser($refresh = FALSE, $newval = NULL) {
+ static $currentObjectUser;
+ if (!is_null($newval)) { //internal use only: reset currentuser
+ $currentObjectUser = $newval;
+ } else if ($refresh || !isset($currentObjectUser)) {
+ if ($id = $this->getCurrentUserId()) {
+ $currentObjectUser = $this->getObjectUser($id);
+ } else {
+ $currentObjectUser = null;
+ }
+ }
+ return $currentObjectUser;
+ }
+
+ function existsUserWithUsername($username) {
+ if($this->getUserByUsername($username) != '') {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ function existsUser($id) {
+ if($this->getUser($id) != '') {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ /**
+ * Checks if the given user is an administrator.
+ * Uses global admin_users property containing admin
+ * user names
+ *
+ * @param integer|array $user User ID or user row from DB
+ *
+ * @return boolean True if the user is admin
+ */
+ function isAdmin($user)
+ {
+ if (is_numeric($user)) {
+ $user = $this->getUser($user);
+ }
+
+ if (isset($GLOBALS['admin_users'])
+ && in_array($user['username'], $GLOBALS['admin_users'])
+ ) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ /* return current user id based on session or cookie */
+ function getCurrentUserId() {
+ if (isset($_SESSION[$this->getSessionKey()])) {
+ return $_SESSION[$this->getSessionKey()];
+ } else if (isset($_COOKIE[$this->getCookieKey()])) {
+ $cook = split(':', $_COOKIE[$this->getCookieKey()]);
+ //cookie looks like this: 'id:md5(username+password)'
+ $query = 'SELECT * FROM '. $this->getTableName() .
+ ' WHERE MD5(CONCAT('.$this->getFieldName('username') .
+ ', '.$this->getFieldName('password') .
+ ')) = \''.$this->db->sql_escape($cook[1]).'\' AND '.
+ $this->getFieldName('primary'). ' = '. $this->db->sql_escape($cook[0]);
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ if ($row = $this->db->sql_fetchrow($dbresult)) {
+ $_SESSION[$this->getSessionKey()] = $row[$this->getFieldName('primary')];
+ $this->db->sql_freeresult($dbresult);
+ return $_SESSION[$this->getSessionKey()];
+ }
+ }
+ return false;
+ }
+
+ function login($username, $password, $remember = FALSE) {
+ $password = $this->sanitisePassword($password);
+ $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) .'"';
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ if ($row =& $this->db->sql_fetchrow($dbresult)) {
+ $id = $_SESSION[$this->getSessionKey()] = $row[$this->getFieldName('primary')];
+ if ($remember) {
+ $cookie = $id .':'. md5($username.$password);
+ setcookie($this->cookiekey, $cookie, time() + $this->cookietime, '/');
+ }
+ $this->db->sql_freeresult($dbresult);
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ function logout() {
+ @setcookie($this->getCookiekey(), '', time() - 1, '/');
+ unset($_COOKIE[$this->getCookiekey()]);
+ session_unset();
+ $this->getCurrentUser(TRUE, false);
+ }
+
+ function getWatchlist($uId) {
+ // Gets the list of user IDs being watched by the given user.
+ $query = 'SELECT watched FROM '. $GLOBALS['tableprefix'] .'watched WHERE uId = '. intval($uId);
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get watchlist', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ $arrWatch = array();
+ if ($this->db->sql_numrows($dbresult) == 0) {
+ $this->db->sql_freeresult($dbresult);
+ return $arrWatch;
+ }
+ while ($row =& $this->db->sql_fetchrow($dbresult)) {
+ $arrWatch[] = $row['watched'];
+ }
+ $this->db->sql_freeresult($dbresult);
+ return $arrWatch;
+ }
+
+ function getWatchNames($uId, $watchedby = false) {
+ // Gets the list of user names being watched by the given user.
+ // - If $watchedby is false get the list of users that $uId watches
+ // - If $watchedby is true get the list of users that watch $uId
+ if ($watchedby) {
+ $table1 = 'b';
+ $table2 = 'a';
+ } else {
+ $table1 = 'a';
+ $table2 = 'b';
+ }
+ $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 .'.'. $this->getFieldName('username');
+
+ if (!($dbresult =& $this->db->sql_query($query))) {
+ message_die(GENERAL_ERROR, 'Could not get watchlist', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ $arrWatch = array();
+ if ($this->db->sql_numrows($dbresult) == 0) {
+ $this->db->sql_freeresult($dbresult);
+ return $arrWatch;
+ }
+ while ($row =& $this->db->sql_fetchrow($dbresult)) {
+ $arrWatch[] = $row[$this->getFieldName('username')];
+ }
+ $this->db->sql_freeresult($dbresult);
+ return $arrWatch;
+ }
+
+ function getWatchStatus($watcheduser, $currentuser) {
+ // Returns true if the current user is watching the given user, and false otherwise.
+ $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($currentuser);
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get watchstatus', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ $arrWatch = array();
+ if ($this->db->sql_numrows($dbresult) == 0)
+ return false;
+ else
+ return true;
+ }
+
+ function setWatchStatus($subjectUserID) {
+ if (!is_numeric($subjectUserID))
+ return false;
+
+ $currentUserID = $this->getCurrentUserId();
+ $watched = $this->getWatchStatus($subjectUserID, $currentUserID);
+
+ if ($watched) {
+ $sql = 'DELETE FROM '. $GLOBALS['tableprefix'] .'watched WHERE uId = '. intval($currentUserID) .' AND watched = '. intval($subjectUserID);
+ if (!($dbresult =& $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not add user to watch list', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+ } else {
+ $values = array(
+ 'uId' => intval($currentUserID),
+ 'watched' => intval($subjectUserID)
+ );
+ $sql = 'INSERT INTO '. $GLOBALS['tableprefix'] .'watched '. $this->db->sql_build_array('INSERT', $values);
+ if (!($dbresult =& $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not add user to watch list', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+ }
+
+ $this->db->sql_transaction('commit');
+ return true;
+ }
+
+ function addUser($username, $password, $email) {
+ // Set up the SQL UPDATE statement.
+ $datetime = gmdate('Y-m-d H:i:s', time());
+ $password = $this->sanitisePassword($password);
+ $values = array('username' => $username, 'password' => $password, 'email' => $email, 'uDatetime' => $datetime, 'uModified' => $datetime);
+ $sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values);
+
+ // Execute the statement.
+ $this->db->sql_transaction('begin');
+ if (!($dbresult = & $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not insert user', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+ $this->db->sql_transaction('commit');
+
+ // Everything worked out, so return true.
+ return true;
+ }
+
+ function updateUser($uId, $password, $name, $email, $homepage, $uContent) {
+ if (!is_numeric($uId))
+ return false;
+
+ // Set up the SQL UPDATE statement.
+ $moddatetime = gmdate('Y-m-d H:i:s', time());
+ if ($password == '')
+ $updates = array ('uModified' => $moddatetime, 'name' => $name, 'email' => $email, 'homepage' => $homepage, 'uContent' => $uContent);
+ else
+ $updates = array ('uModified' => $moddatetime, 'password' => $this->sanitisePassword($password), 'name' => $name, 'email' => $email, 'homepage' => $homepage, 'uContent' => $uContent);
+ $sql = 'UPDATE '. $this->getTableName() .' SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE '. $this->getFieldName('primary') .'='. intval($uId);
+
+ // Execute the statement.
+ $this->db->sql_transaction('begin');
+ if (!($dbresult = & $this->db->sql_query($sql))) {
+ $this->db->sql_transaction('rollback');
+ message_die(GENERAL_ERROR, 'Could not update user', '', __LINE__, __FILE__, $sql, $this->db);
+ return false;
+ }
+ $this->db->sql_transaction('commit');
+
+ // Everything worked out, so return true.
+ return true;
+ }
+
+ function getAllUsers ( ) {
+ $query = 'SELECT * FROM '. $this->getTableName();
+
+ if (! ($dbresult =& $this->db->sql_query($query)) ) {
+ message_die(GENERAL_ERROR, 'Could not get users', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ $rows = array();
+
+ while ( $row = $this->db->sql_fetchrow($dbresult) ) {
+ $rows[] = $row;
+ }
+ $this->db->sql_freeresult($dbresult);
+ return $rows;
+ }
+
+ // Returns an array with admin uIds
+ function getAdminIds() {
+ $admins = array();
+ foreach($GLOBALS['admin_users'] as $adminName) {
+ if($this->getIdFromUser($adminName) != NULL)
+ $admins[] = $this->getIdFromUser($adminName);
+ }
+ return $admins;
+ }
+
+ function deleteUser($uId) {
+ $query = 'DELETE FROM '. $this->getTableName() .' WHERE uId = '. intval($uId);
+
+ if (!($dbresult = & $this->db->sql_query($query))) {
+ message_die(GENERAL_ERROR, 'Could not delete user', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ return true;
+ }
+
+
+ function sanitisePassword($password) {
+ return sha1(trim($password));
+ }
+
+ function generatePassword($uId) {
+ if (!is_numeric($uId))
+ return false;
+
+ $password = $this->_randompassword();
+
+ if ($this->_updateuser($uId, $this->getFieldName('password'), $this->sanitisePassword($password)))
+ return $password;
+ else
+ return false;
+ }
+
+ function isReserved($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);
+ }
+}
+?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 18:22:31 +0000