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<?php defined("SYSPATH") or die("No direct script access.");/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2009 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
class Rest_Controller extends Controller {
public function access_key() {
$request = json_decode($this->input->post("request"));
if (empty($request->user) || empty($request->password)) {
print rest::forbidden("No user or password supplied");
return;
}
$user = identity::lookup_user_by_name($request->user);
if (empty($user)) {
print rest::forbidden("User '{$request->user}' not found");
return;
}
if (!identity::is_correct_password($user, $request->password)) {
print rest::forbidden("Invalid password for '{$request->user}'.");
return;
}
$key = ORM::factory("user_access_token")
->where("user_id", $user->id)
->find();
if (!$key->loaded) {
$key->user_id = $user->id;
$key->access_key = md5($user->name . rand());
$key->save();
Kohana::log("alert", Kohana::debug($key->as_array()));
}
print rest::success(array("token" => $key->access_key));
}
public function __call($function, $args) {
$request = $this->_normalize_request($args);
if (empty($request->access_token)) {
print rest::forbidden("No access token supplied.");
return;
}
try {
if ($this->_set_active_user($request->access_token)) {
$handler_class = "{$function}_rest";
$handler_method = "{$request->method}";
if (!method_exists($handler_class, $handler_method)) {
print rest::not_implemented("$handler_class::$handler_method is not implemented");
return;
}
print call_user_func(array($handler_class, $handler_method), $request);
}
} catch (Exception $e) {
print rest::internal_error($e);
}
}
private function _normalize_request($args) {
$method = strtolower($this->input->server("REQUEST_METHOD"));
if ($method != "get") {
$request = $this->input->post("request", null);
if ($request) {
$request = json_decode($request);
} else {
$request = new stdClass();
}
} else {
$request = new stdClass();
foreach (array_keys($_GET) as $key) {
if ($key == "request_key") {
continue;
}
$request->$key = $this->input->get($key);
}
}
$override_method = strtolower($this->input->server("HTTP_X_GALLERY_REQUEST_METHOD", null));
$request->method = empty($override_method) ? $method : $override_method;
$request->access_token = $this->input->server("HTTP_X_GALLERY_REQUEST_KEY");
$request->path = implode("/", $args);
return $request;
}
private function _set_active_user($access_token) {
if (empty($access_token)) {
$user = identity::guest();
} else {
$key = ORM::factory("user_access_token")
->where("access_key", $access_token)
->find();
if ($key->loaded) {
$user = identity::lookup_user($key->user_id);
if (empty($user)) {
print rest::forbidden("User not found: {$key->user_id}");
return false;;
}
} else {
print rest::forbidden("Invalid user access token supplied: {$key->user_id}");
return false;
}
}
identity::set_active_user($user);
return true;
}
}
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