71 lines
2.5 KiB
PHP
71 lines
2.5 KiB
PHP
<?php
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namespace sammo;
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class WebUtil{
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public static function setHeaderNoCache(){
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if(!headers_sent()) {
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header('Expires: Wed, 01 Jan 2014 00:00:00 GMT');
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header('Cache-Control: no-store, no-cache, must-revalidate');
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header('Cache-Control: post-check=0, pre-check=0', FALSE);
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header('Pragma: no-cache');
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}
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}
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public static function parseJsonPost(){
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// http://thisinterestsme.com/receiving-json-post-data-via-php/
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// http://thisinterestsme.com/php-json-error-handling/
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if(strcasecmp($_SERVER['REQUEST_METHOD'], 'POST') != 0){
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throw new Exception('Request method must be POST!');
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}
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//Make sure that the content type of the POST request has been set to application/json
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$contentType = isset($_SERVER["CONTENT_TYPE"]) ? trim($_SERVER["CONTENT_TYPE"]) : '';
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if(strcasecmp($contentType, 'application/json') != 0){
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throw new Exception('Content type must be: application/json');
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}
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//Receive the RAW post data.
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$content = trim(file_get_contents("php://input"));
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//Attempt to decode the incoming RAW post data from JSON.
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$decoded = json_decode($content, true);
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$jsonError = json_last_error();
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//In some cases, this will happen.
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if(is_null($decoded) && $jsonError == JSON_ERROR_NONE){
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throw new Exception('Could not decode JSON!');
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}
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//If an error exists.
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if($jsonError != JSON_ERROR_NONE){
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$error = 'Could not decode JSON! ';
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//Use a switch statement to figure out the exact error.
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switch($jsonError){
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case JSON_ERROR_DEPTH:
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$error .= 'Maximum depth exceeded!';
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break;
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case JSON_ERROR_STATE_MISMATCH:
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$error .= 'Underflow or the modes mismatch!';
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break;
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case JSON_ERROR_CTRL_CHAR:
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$error .= 'Unexpected control character found';
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break;
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case JSON_ERROR_SYNTAX:
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$error .= 'Malformed JSON';
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break;
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case JSON_ERROR_UTF8:
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$error .= 'Malformed UTF-8 characters found!';
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break;
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default:
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$error .= 'Unknown error!';
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break;
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}
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throw new Exception($error);
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}
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return $decoded;
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}
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} |