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<?php
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/* $Id$ */
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defined( '_ISVALID' ) or die( "You can't access this file directly!" );
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// This file contains all the functions for getting information
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// about users from Drupal 5.0
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// This plugin file for WebCalendar 1.1.x uses the Drupal user number as
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// the login id because Drupal usernames can be changed.
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// User administration is done through Drupal.
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// The following functions from this file are called by WebCalendar:
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// user_logged_in()
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// user_get_users()
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// user_load_variables()
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// app_login_screen()
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// user_delete_user()
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// user_update_user()
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// user_update_user_password()
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// user_add_user()
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// The following functions are default functions:
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// user_delete_user()
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// user_update_user()
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// user_update_user_password()
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// user_add_user()
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/************************* Config ***********************************/
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// Full URL to Drupal (including http:// or https:// and a trailing slash)
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$app_url = 'http://www.yoursite.com/drupal/';
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// Is WebCalendar going to be loaded in an iframe?
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$app_in_iframe = true;
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// Name of database containing Drupal's tables
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$app_db = 'drupal';
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// Host that Drupal's db is on
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$app_host = 'localhost';
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// Login/Password to access Drupal's database
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$app_login = 'username';
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$app_pass = 'password';
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// Drupal's database prefix
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$app_db_prefix = '';
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/*************************** End Config *****************************/
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$app_user_table = $app_db_prefix . 'users';
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$app_session_table = $app_db_prefix . 'sessions';
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$app_permission_table = $app_db_prefix . 'permission';
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$app_users_roles_table = $app_db_prefix . 'users_roles';
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/* Add a slash to the end if its not there
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if (substr($app_url, -1, 1) != '/') {
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$app_url .= '/';
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}
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*/
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if ($app_in_iframe) {
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$app_logout_page = "javascript:parent.document.location='" . $app_url . "logout'";
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}
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else {
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$app_logout_page = $app_url . "logout";
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}
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// Are Drupal's tables in the same database as WebCalendar's?
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$app_same_db = (($db_database == $app_db) && ($app_host == $db_host)) ? '1' : '0';
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// User administration should be done through Drupal's interface
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$user_can_update_password = false;
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$admin_can_add_user = false;
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// Allow admin to delete user from webcal tables (not from Drupal)
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$admin_can_delete_user = true;
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// Checks to see if the user is logged into Drupal & has permission
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// Returns: login id (i.e. the user id of the logged in Drupal user, if they
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// have permission to log into WebCalendar)
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function user_logged_in() {
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global $PUBLIC_ACCESS;
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global $app_user_table, $app_session_table;
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global $app_host, $app_login, $app_pass, $app_db, $app_same_db;
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global $c, $db_host, $db_login, $db_password, $db_database;
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$sid = $_COOKIE['PHPSESSID'];
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if ($app_same_db != '1') $c = dbi_connect($app_host, $app_login, $app_pass, $app_db);
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if (!empty($sid)) {
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$sql = "SELECT u.uid FROM $app_session_table s, $app_user_table u WHERE s.sid = '$sid' AND s.uid=u.uid";
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$res = dbi_query($sql);
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if ($res) {
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if ($row = dbi_fetch_row($res)) {
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$uid = $row[0];
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}
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dbi_free_result($res);
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}
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//update last access times for sessions and users
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$sql = "UPDATE $app_session_table SET timestamp = '".time()."' WHERE sid = '$sid' ";
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dbi_query ( $sql );
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$sql = "UPDATE $app_user_table u, $app_session_table s SET u.access = '".time()."' WHERE s.sid = '$sid' AND u.uid = s.uid AND s.uid <> 0";
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dbi_query ( $sql );
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}
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if (!isset($uid)) {
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$uid = 0;
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}
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$login = false;
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if (check_permissions($uid, "access webcal") && $PUBLIC_ACCESS == 'Y') {
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$login = '__public__';
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}
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if (check_permissions($uid, "login to webcal")) {
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$login = $uid;
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}
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if ($app_same_db != '1') $c = dbi_connect($db_host, $db_login, $db_password, $db_database);
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/* Prints debug information
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print "<pre>";
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print_r( 'uid='.$uid."\nlogin=".$login."\n");
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global $cached_users;
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print_r ($cached_users);
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print "</pre>";
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exit;
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*/
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return $login;
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}
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// Checks a given Drupal user id to see if they have a certain permission
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// Precondition: Assumes that the database is already connected
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// Returns: true if the user has the permission, false if they dont
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function check_permissions($uid, $permission) {
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global $cached_users;
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global $app_permission_table, $app_users_roles_table;
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if ($uid == 1) {
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return true;
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}
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if (empty ($cached_users[$permission])) {
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$rids = array();
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$res = dbi_query("SELECT rid, perm FROM $app_permission_table");
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if ($res) {
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while ($row = dbi_fetch_row($res)) {
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if (strpos($row[1], $permission) !== FALSE) {
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$rids[] = $row[0];
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}
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}
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dbi_free_result ( $res );
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}
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$cached_users[$permission] = array ();
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//echo "role ids for '$permission'= ";
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//print_r ($rids);
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// check if anonymous users or all authenticated users have the permission
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if (in_array(1, $rids) || (in_array(2, $rids) && $uid != 0)) {
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$cached_users[$permission][] = "*";
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}
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else {
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// Get all the user ids that have the permission and add them to the cached users array
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$rid_string = implode(',', $rids);
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if ($rid_string) {
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$res = dbi_query("SELECT uid FROM $app_users_roles_table WHERE rid IN ($rid_string)");
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if ($res) {
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while ($row = dbi_fetch_row($res)) {
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$cached_users[$permission][] = $row[0];
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}
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dbi_free_result ( $res );
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}
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}
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}
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}
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foreach ($cached_users[$permission] as $certain_user) {
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if ($certain_user == $uid || $certain_user == "*")
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return true;
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}
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return false;
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}
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// Gets a list of Drupal users with permission to login to WebCalendar
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// Returns: An array containing information about all Drupal users who have
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// permission to login to WebCalendar
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function user_get_users () {
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global $PUBLIC_ACCESS, $PUBLIC_ACCESS_FULLNAME, $app_user_table, $app_session_table;
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global $app_host, $app_login, $app_pass, $app_db, $app_same_db;
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global $c, $db_host, $db_login, $db_password, $db_database;
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$count = 0;
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$ret = array ();
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if ( $PUBLIC_ACCESS == 'Y' )
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$ret[$count++] = array (
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'cal_login' => '__public__',
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'cal_lastname' => '',
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'cal_firstname' => '',
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'cal_is_admin' => 'N',
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'cal_email' => '',
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'cal_password' => '',
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'cal_fullname' => $PUBLIC_ACCESS_FULLNAME
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);
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// if application is in a separate db, we have to connect to it
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if ($app_same_db != '1') $c = dbi_connect($app_host, $app_login, $app_pass, $app_db);
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$sql = "SELECT uid, name, mail FROM $app_user_table WHERE uid <> '0' ORDER BY uid";
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$res = dbi_query ( $sql );
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if ( $res ) {
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while ( $row = dbi_fetch_row ( $res ) ) {
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list($fname, $lname) = split (" ",$row[1]);
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if (check_permissions($row[0], 'login to webcal')) {
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$ret[$count++] = array (
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"cal_login" => $row[0],
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"cal_lastname" => $lname,
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"cal_firstname" => $fname,
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"cal_is_admin" => check_permissions($row[0], 'webcal admin'),
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"cal_email" => $row[2],
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"cal_fullname" => $row[1]
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);
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}
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}
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dbi_free_result ( $res );
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}
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// if application is in a separate db, we have to connect back to the webcal db
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if ($app_same_db != '1') $c = dbi_connect($db_host, $db_login, $db_password, $db_database);
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return $ret;
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}
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// Load info about a user (first name, last name, admin) and set globally.
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// params:
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// $user - user login
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// $prefix - variable prefix to use
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// Returns: true if no errors occured, false if db errors occured
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function user_load_variables ($login, $prefix) {
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global $PUBLIC_ACCESS_FULLNAME, $NONUSER_PREFIX;
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global $app_host, $app_login, $app_pass, $app_db, $app_user_table;
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global $c, $db_host, $db_login, $db_password, $db_database, $app_same_db;
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if ($NONUSER_PREFIX && substr($login, 0, strlen($NONUSER_PREFIX)) == $NONUSER_PREFIX) {
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nonuser_load_variables ($login, $prefix);
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return true;
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}
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if ( $login == '__public__' ) {
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$GLOBALS[$prefix . 'login'] = $login;
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$GLOBALS[$prefix . 'firstname'] = '';
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$GLOBALS[$prefix . 'lastname'] = '';
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$GLOBALS[$prefix . 'is_admin'] = 'N';
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$GLOBALS[$prefix . 'email'] = '';
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$GLOBALS[$prefix . 'fullname'] = $PUBLIC_ACCESS_FULLNAME;
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$GLOBALS[$prefix . 'password'] = '';
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return true;
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}
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// if application is in a separate db, we have to connect to it
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if ($app_same_db != '1') $c = dbi_connect($app_host, $app_login, $app_pass, $app_db);
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$res = dbi_query ("SELECT uid, name, mail FROM $app_user_table WHERE uid = $login");
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if ($res) {
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if ($row = dbi_fetch_row($res)) {
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list($fname, $lname) = split (" ",$row[1]);
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$GLOBALS[$prefix . 'login'] = $login;
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$GLOBALS[$prefix . 'firstname'] = $fname;
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$GLOBALS[$prefix . 'lastname'] = $lname;
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$GLOBALS[$prefix . 'is_admin'] = check_permissions($row[0], 'webcal admin');
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$GLOBALS[$prefix . 'email'] = $row[2];
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$GLOBALS[$prefix . 'fullname'] = $row[1];
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}
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dbi_free_result($res);
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} else {
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$error = db_error();
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return false;
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}
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// if application is in a separate db, we have to connect back to the webcal db
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if ($app_same_db != '1') $c = dbi_connect($db_host, $db_login, $db_password, $db_database);
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return true;
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}
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// Redirect the user to the application's login screen
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function app_login_screen($return = '') {
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global $app_url, $app_in_iframe;
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if (empty($return) && $app_in_iframe) {
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$return = "webcal";
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}
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if (!empty($return)) {
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$return = "?destination=$return";
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}
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$login_page = $app_url . "user" . $return;
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if ($app_in_iframe) {
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echo "<html><body onload=\"parent.document.location='$login_page'\"></body></html>";
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exit;
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}
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header("Location: $login_page");
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exit;
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}
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/*********************************************************************
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*
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* Functions that are unchanged from other user-app files
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*
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********************************************************************/
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/**
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* Delete a user from the WebCalendar tables (Not from Drupal)
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*
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* This will also delete any of the user's events in the system that have
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* no other participants. Any layers that point to this user
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* will be deleted. Any views that include this user will be updated.
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*
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* @param string $user User to delete
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*/
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function user_delete_user ( $user ) {
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// Get event ids for all events this user is a participant
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$events = array ();
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$res = dbi_execute ( 'SELECT webcal_entry.cal_id ' .
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'FROM webcal_entry, webcal_entry_user ' .
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'WHERE webcal_entry.cal_id = webcal_entry_user.cal_id ' .
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'AND webcal_entry_user.cal_login = ?' , array ( $user ) );
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if ( $res ) {
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while ( $row = dbi_fetch_row ( $res ) ) {
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$events[] = $row[0];
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}
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}
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// Now count number of participants in each event...
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// If just 1, then save id to be deleted
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$delete_em = array ();
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$evcnt = count ( $events );
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for ( $i = 0; $i < $evcnt; $i++ ) {
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$res = dbi_execute ( 'SELECT COUNT(*) FROM webcal_entry_user ' .
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'WHERE cal_id = ?' , array ( $events[$i] ) );
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| 352 |
if ( $res ) {
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| 353 |
if ( $row = dbi_fetch_row ( $res ) ) {
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| 354 |
if ( $row[0] == 1 )
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$delete_em[] = $events[$i];
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}
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dbi_free_result ( $res );
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}
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}
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$delete_emcnt = count ( $delete_em );
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// Now delete events that were just for this user
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for ( $i = 0; $i < $delete_emcnt; $i++ ) {
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| 363 |
dbi_execute ( 'DELETE FROM webcal_entry_repeats WHERE cal_id = ?' ,
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array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_entry_repeats_not WHERE cal_id = ?' ,
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array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_entry_log WHERE cal_entry_id = ?' ,
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| 368 |
array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_import_data WHERE cal_id = ?' ,
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array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_site_extras WHERE cal_id = ?' ,
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| 372 |
array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_entry_ext_user WHERE cal_id = ?' ,
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| 374 |
array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_reminders WHERE cal_id = ?' ,
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| 376 |
array ( $delete_em[$i] ) );
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dbi_execute ( 'DELETE FROM webcal_blob WHERE cal_id = ?' ,
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| 378 |
array ( $delete_em[$i] ) );
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| 379 |
dbi_execute ( 'DELETE FROM webcal_entry WHERE cal_id = ?' ,
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| 380 |
array ( $delete_em[$i] ) );
|
| 381 |
}
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| 382 |
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| 383 |
// Delete user participation from events
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| 384 |
dbi_execute ( 'DELETE FROM webcal_entry_user WHERE cal_login = ?' ,
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| 385 |
array ( $user ) );
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| 386 |
// Delete preferences
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| 387 |
dbi_execute ( 'DELETE FROM webcal_user_pref WHERE cal_login = ?' ,
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| 388 |
array ( $user ) );
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| 389 |
// Delete from groups
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dbi_execute ( 'DELETE FROM webcal_group_user WHERE cal_login = ?' ,
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array ( $user ) );
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// Delete bosses & assistants
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dbi_execute ( 'DELETE FROM webcal_asst WHERE cal_boss = ?' ,
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| 394 |
array ( $user ) );
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| 395 |
dbi_execute ( 'DELETE FROM webcal_asst WHERE cal_assistant = ?' ,
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array ( $user ) );
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// Delete user's views
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| 398 |
$delete_em = array ();
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| 399 |
$res = dbi_execute ( 'SELECT cal_view_id FROM webcal_view WHERE cal_owner = ?' ,
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| 400 |
array ( $user ) );
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| 401 |
if ( $res ) {
|
| 402 |
while ( $row = dbi_fetch_row ( $res ) ) {
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| 403 |
$delete_em[] = $row[0];
|
| 404 |
}
|
| 405 |
dbi_free_result ( $res );
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| 406 |
}
|
| 407 |
$delete_emcnt = count ( $delete_em );
|
| 408 |
for ( $i = 0; $i < $delete_emcnt; $i++ ) {
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| 409 |
dbi_execute ( 'DELETE FROM webcal_view_user WHERE cal_view_id = ?' ,
|
| 410 |
array ( $delete_em[$i] ) );
|
| 411 |
}
|
| 412 |
dbi_execute ( 'DELETE FROM webcal_view WHERE cal_owner = ?' ,
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| 413 |
array ( $user ) );
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| 414 |
//Delete them from any other user's views
|
| 415 |
dbi_execute ( 'DELETE FROM webcal_view_user WHERE cal_login = ?' ,
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| 416 |
array ( $user ) );
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| 417 |
// Delete layers
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| 418 |
dbi_execute ( 'DELETE FROM webcal_user_layers WHERE cal_login = ?' ,
|
| 419 |
array ( $user ) );
|
| 420 |
// Delete any layers other users may have that point to this user.
|
| 421 |
dbi_execute ( 'DELETE FROM webcal_user_layers WHERE cal_layeruser = ?' ,
|
| 422 |
array ( $user ) );
|
| 423 |
// Delete function access
|
| 424 |
dbi_execute ( 'DELETE FROM webcal_access_function WHERE cal_login = ?' ,
|
| 425 |
array ( $user ) );
|
| 426 |
// Delete user access
|
| 427 |
dbi_execute ( 'DELETE FROM webcal_access_user WHERE cal_login = ?' ,
|
| 428 |
array ( $user ) );
|
| 429 |
dbi_execute ( 'DELETE FROM webcal_access_user WHERE cal_other_user = ?' ,
|
| 430 |
array ( $user ) );
|
| 431 |
// Delete user's categories
|
| 432 |
dbi_execute ( 'DELETE FROM webcal_categories WHERE cat_owner = ?' ,
|
| 433 |
array ( $user ) );
|
| 434 |
dbi_execute ( 'DELETE FROM webcal_entry_categories WHERE cat_owner = ?' ,
|
| 435 |
array ( $user ) );
|
| 436 |
// Delete user's reports
|
| 437 |
$delete_em = array ();
|
| 438 |
$res = dbi_execute ( 'SELECT cal_report_id FROM webcal_report WHERE cal_login = ?' ,
|
| 439 |
array ( $user ) );
|
| 440 |
if ( $res ) {
|
| 441 |
while ( $row = dbi_fetch_row ( $res ) ) {
|
| 442 |
$delete_em[] = $row[0];
|
| 443 |
}
|
| 444 |
dbi_free_result ( $res );
|
| 445 |
}
|
| 446 |
$delete_emcnt = count ( $delete_em );
|
| 447 |
for ( $i = 0; $i < $delete_emcnt; $i++ ) {
|
| 448 |
dbi_execute ( 'DELETE FROM webcal_report_template WHERE cal_report_id = ?' ,
|
| 449 |
array ( $delete_em[$i] ) );
|
| 450 |
}
|
| 451 |
dbi_execute ( 'DELETE FROM webcal_report WHERE cal_login = ?' ,
|
| 452 |
array ( $user ) );
|
| 453 |
//not sure about this one???
|
| 454 |
dbi_execute ( 'DELETE FROM webcal_report WHERE cal_user = ?' ,
|
| 455 |
array ( $user ) );
|
| 456 |
// Delete user templates
|
| 457 |
dbi_execute ( 'DELETE FROM webcal_user_template WHERE cal_login = ?' ,
|
| 458 |
array ( $user ) );
|
| 459 |
}
|
| 460 |
|
| 461 |
// Functions we don't use with this file:
|
| 462 |
function user_update_user ( $user, $firstname, $lastname, $email, $admin ) {
|
| 463 |
global $error;
|
| 464 |
$error = 'User admin not supported.'; return false;
|
| 465 |
}
|
| 466 |
function user_update_user_password ( $user, $password ) {
|
| 467 |
global $error;
|
| 468 |
$error = 'User admin not supported.'; return false;
|
| 469 |
}
|
| 470 |
function user_add_user ( $user, $password, $firstname, $lastname, $email, $admin ) {
|
| 471 |
global $error;
|
| 472 |
$error = 'User admin not supported.'; return false;
|
| 473 |
}
|
| 474 |
?>
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