| <?php | <?php |
| /* | /* |
| * Copyright 2010,2011 Alexander Sadleir | * Copyright 2010,2011 Alexander Sadleir |
| Licensed under the Apache License, Version 2.0 (the "License"); | Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. | you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at | You may obtain a copy of the License at |
| http://www.apache.org/licenses/LICENSE-2.0 | http://www.apache.org/licenses/LICENSE-2.0 |
| Unless required by applicable law or agreed to in writing, software | Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, | distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and | See the License for the specific language governing permissions and |
| limitations under the License. | limitations under the License. |
| */ | */ |
| include ('include/common.inc.php'); | include ('../include/common.inc.php'); |
| function accept_header($header = false) { | function accept_header($header = false) { |
| // http://jrgns.net/parse_http_accept_header | // http://jrgns.net/parse_http_accept_header |
| $toret = null; | $toret = null; |
| $header = $header ? $header : (array_key_exists('HTTP_ACCEPT', $_SERVER) ? $_SERVER['HTTP_ACCEPT']: false); | $header = $header ? $header : (array_key_exists('HTTP_ACCEPT', $_SERVER) ? $_SERVER['HTTP_ACCEPT']: false); |
| if ($header) { | if ($header) { |
| $types = explode(',', $header); | $types = explode(',', $header); |
| $types = array_map('trim', $types); | $types = array_map('trim', $types); |
| foreach ($types as $one_type) { | foreach ($types as $one_type) { |
| $one_type = explode(';', $one_type); | $one_type = explode(';', $one_type); |
| $type = array_shift($one_type); | $type = array_shift($one_type); |
| if ($type) { | if ($type) { |
| list($precedence, $tokens) = self::accept_header_options($one_type); | list($precedence, $tokens) = self::accept_header_options($one_type); |
| list($main_type, $sub_type) = array_map('trim', explode('/', $type)); | list($main_type, $sub_type) = array_map('trim', explode('/', $type)); |
| $toret[] = array('main_type' => $main_type, 'sub_type' => $sub_type, 'precedence' => (float)$precedence, 'tokens' => $tokens); | $toret[] = array('main_type' => $main_type, 'sub_type' => $sub_type, 'precedence' => (float)$precedence, 'tokens' => $tokens); |
| } | } |
| } | } |
| usort($toret, array('Parser', 'compare_media_ranges')); | usort($toret, array('Parser', 'compare_media_ranges')); |
| } | } |
| return $toret; | return $toret; |
| } | } |
| function usage() { | |
| echo "Usage notes: Must specify format json/protobuf and gtfs-realtime feedtype alerts/updates. If callback is specified, will provide jsonp. Can filter with parmaters filter_class route/stop and filter_id with the id specified in GTFS."; | |
| die(); | |
| } | |
| $filter_class = (isset($_REQUEST['filter_class']) ? $_REQUEST['filter_class'] : ""); | |
| $filter_id = (isset($_REQUEST['filter_id']) ? $_REQUEST['filter_id']:""); | |
| $json_types = Array("application/json","application/x-javascript","text/javascript","text/x-javascript","text/x-json"); | $json_types = Array("application/json","application/x-javascript","text/javascript","text/x-javascript","text/x-json"); |
| if ($_REQUEST['json']) { | if ($_REQUEST['json']) { |
| $return = getServiceAlertsAsJSON($_REQUEST['filter_class'], $_REQUEST['filter_id']); | if ($_REQUEST['alerts']) { |
| $return = getServiceAlertsAsJSON($filter_class,$filter_id); | |
| } else if ($_REQUEST['updates']) { | |
| $return = getTripUpdatesAsJSON($filter_class,$filter_id); | |
| } else { | |
| usage(); | |
| } | |
| header('Content-Type: application/json; charset=utf8'); | header('Content-Type: application/json; charset=utf8'); |
| // header('Access-Control-Allow-Origin: http://bus.lambdacomplex.org/'); | // header('Access-Control-Allow-Origin: http://bus.lambdacomplex.org/'); |
| header('Access-Control-Max-Age: 3628800'); | header('Access-Control-Max-Age: 3628800'); |
| header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE'); | header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE'); |
| if (isset($_GET['callback'])) { | if (isset($_GET['callback'])) { |
| $json = '(' . $return . ');'; //must wrap in parens and end with semicolon | $json = '(' . $return . ');'; //must wrap in parens and end with semicolon |
| //print_r($_GET['callback'] . $json); //callback is prepended for json-p | //print_r($_GET['callback'] . $json); //callback is prepended for json-p |
| } | } |
| else | else { |
| echo $return; | echo $return; |
| } | |
| } else if ($_REQUEST['protobuf']) { | |
| if ($_REQUEST['alerts']) { | |
| $return = getServiceAlertsAsBinary($filter_class,$filter_id); | |
| } else if ($_REQUEST['updates']) { | |
| $return = getTripUpdatesAsBinary($filter_class,$filter_id); | |
| } else { | |
| usage(); | |
| } | |
| header('Content-Type: application/x-protobuf'); | |
| header('Content-Disposition: attachment; filename="'.(isset($_REQUEST['updates'])?"updates.":"alerts.").date("c").'.protobuf"'); | |
| // header('Access-Control-Allow-Origin: http://bus.lambdacomplex.org/'); | |
| header('Access-Control-Max-Age: 3628800'); | |
| header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE'); | |
| echo $return; | |
| } else { | |
| usage(); | |
| } | } |
| ?> | ?> |