Added time zone endpoint

Change-Id: I3d1f95e4b25952f1618337e5fb2f523863d2de80
Signed-off-by: smarcet <smarcet@gmail.com>

app/Http/Controllers/Apis/TimezonesApiController.php

@@ -0,0 +1,57 @@
+<?php namespace App\Http\Controllers;
+/**
+ * Copyright 2021 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use Illuminate\Support\Facades\Input;
+use Illuminate\Support\Facades\Log;
+use models\exceptions\EntityNotFoundException;
+use models\exceptions\ValidationException;
+use utils\PagingResponse;
+/**
+ * Class TimezonesApiController
+ * @package App\Http\Controllers
+ */
+final class TimezonesApiController extends JsonController
+{
+    /**
+     * @return mixed
+     */
+    public function getAll(){
+        try {
+            $timezones   = \DateTimeZone::listIdentifiers();
+            $response    = new PagingResponse
+            (
+                count($timezones),
+                count($timezones),
+                1,
+                1,
+                $timezones
+            );
+
+            return $this->ok($response->toArray($expand = Input::get('expand','')));
+        }
+        catch (ValidationException $ex1) {
+            Log::warning($ex1);
+            return $this->error412(array($ex1->getMessage()));
+        }
+        catch(EntityNotFoundException $ex2)
+        {
+            Log::warning($ex2);
+            return $this->error404(array('message'=> $ex2->getMessage()));
+        }
+        catch (\Exception $ex) {
+            Log::error($ex);
+            return $this->error500($ex);
+        }
+    }
+}

app/Http/Routes/public.php

@@ -223,6 +223,12 @@ Route::group([
         Route::get('', 'LanguagesApiController@getAll');
     });
 
+
+    // timezones
+    Route::group(array('prefix' => 'timezones'), function () {
+        Route::get('', 'TimezonesApiController@getAll');
+    });
+
 });
 
 Route::group([