97 lines
3.2 KiB
PHP
97 lines
3.2 KiB
PHP
<?php
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// Testet ob ein User eingeloggt ist und lädt die entsprechenden Privilegien
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function load_auth() {
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global $user, $privileges;
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if (!isset ($_SESSION['IP']))
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$_SESSION['IP'] = $_SERVER['REMOTE_ADDR'];
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if ($_SESSION['IP'] != $_SERVER['REMOTE_ADDR']) {
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session_destroy();
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error("Your session has been destroyed because your ip-address changed.");
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header("Location: " . page_link_to('start'));
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}
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$user = null;
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if (isset ($_SESSION['uid'])) {
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$user = sql_select("SELECT * FROM `User` WHERE `UID`=" . sql_escape($_SESSION['uid']) . " LIMIT 1");
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if (count($user) > 0) {
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// User ist eingeloggt, Datensatz zur Verfügung stellen und Timestamp updaten
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list ($user) = $user;
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sql_query("UPDATE `User` SET " . "`lastLogIn` = '" . time() . "'" . " WHERE `UID` = '" . sql_escape($_SESSION['uid']) . "' LIMIT 1;");
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} else
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unset ($_SESSION['uid']);
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}
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$privileges = isset ($user) ? privileges_for_user($user['UID']) : privileges_for_group(-1);
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}
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function PassCrypt($passwort) {
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global $crypt_system;
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switch ($crypt_system) {
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case "crypt" :
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return "{crypt}" . crypt($passwort, "77");
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case "md5" :
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return md5($passwort);
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}
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}
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// JSON Authorisierungs-Schnittstelle
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function json_auth_service() {
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global $CurrentExternAuthPass;
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header("Content-Type: application/json");
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$User = $_REQUEST['user'];
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$Pass = $_REQUEST['pw'];
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$SourceOuth = $_REQUEST['so'];
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if (isset ($CurrentExternAuthPass) && $SourceOuth == $CurrentExternAuthPass) {
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$sql = "SELECT * FROM `User` WHERE `Nick`='" . sql_escape($User) . "'";
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$Erg = sql_query($sql);
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if (mysql_num_rows($Erg) == 1) {
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if (mysql_result($Erg, 0, "Passwort") == PassCrypt($Pass)) {
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$UID = mysql_result($Erg, 0, "UID");
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$user_privs = sql_select("SELECT `Privileges`.`name` FROM `User` JOIN `UserGroups` ON (`User`.`UID` = `UserGroups`.`uid`) JOIN `GroupPrivileges` ON (`UserGroups`.`group_id` = `GroupPrivileges`.`group_id`) JOIN `Privileges` ON (`GroupPrivileges`.`privilege_id` = `Privileges`.`id`) WHERE `User`.`UID`=" . sql_escape($UID) . ";");
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foreach ($user_privs as $user_priv)
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$privileges[] = $user_priv['name'];
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$msg = array (
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'status' => 'success',
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'rights' => $privileges
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);
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echo json_encode($msg);
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die();
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}
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}
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}
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echo json_encode(array (
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'status' => 'failed',
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'error' => "JSON Service GET syntax: https://engelsystem.de/?auth&user=<user>&pw=<password>&so=<key>, POST is possible too"
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));
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die();
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}
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function privileges_for_user($user_id) {
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$privileges = array ();
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$user_privs = sql_select("SELECT `Privileges`.`name` FROM `User` JOIN `UserGroups` ON (`User`.`UID` = `UserGroups`.`uid`) JOIN `GroupPrivileges` ON (`UserGroups`.`group_id` = `GroupPrivileges`.`group_id`) JOIN `Privileges` ON (`GroupPrivileges`.`privilege_id` = `Privileges`.`id`) WHERE `User`.`UID`=" . sql_escape($user_id) . ";");
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foreach ($user_privs as $user_priv)
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$privileges[] = $user_priv['name'];
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return $privileges;
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}
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function privileges_for_group($group_id) {
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$privileges = array ();
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$groups_privs = sql_select("SELECT * FROM `GroupPrivileges` JOIN `Privileges` ON (`GroupPrivileges`.`privilege_id` = `Privileges`.`id`) WHERE `group_id`=" . sql_escape($group_id));
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foreach ($groups_privs as $guest_priv)
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$privileges[] = $guest_priv['name'];
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return $privileges;
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}
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?>
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