171 lines
4.4 KiB
PHP
171 lines
4.4 KiB
PHP
<?php
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/**
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* ZeroBin
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*
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* a zero-knowledge paste bin
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*
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* @link http://sebsauvage.net/wiki/doku.php?id=php:zerobin
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* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
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* @license http://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
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* @version 0.21.1
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*/
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/**
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* request
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*
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* parses request parameters and provides helper functions for routing
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*/
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class request
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{
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/**
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* Input stream to use for PUT parameter parsing.
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*
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* @access private
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* @var string
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*/
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private static $_inputStream = 'php://input';
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/**
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* Operation to perform.
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*
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* @access private
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* @var string
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*/
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private $_operation = 'view';
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/**
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* Request parameters.
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*
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* @access private
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* @var array
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*/
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private $_params = array();
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/**
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* If we are in a JSON API context.
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*
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* @access private
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* @var bool
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*/
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private $_isJsonApi = false;
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/**
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* Constructor.
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*
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* @access public
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* @return void
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*/
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public function __construct()
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{
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// in case stupid admin has left magic_quotes enabled in php.ini (for PHP < 5.4)
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if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc())
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{
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$_POST = array_map('filter::stripslashes_deep', $_POST);
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$_GET = array_map('filter::stripslashes_deep', $_GET);
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$_COOKIE = array_map('filter::stripslashes_deep', $_COOKIE);
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}
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// decide if we are in JSON API or HTML context
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if (
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(array_key_exists('HTTP_X_REQUESTED_WITH', $_SERVER) &&
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$_SERVER['HTTP_X_REQUESTED_WITH'] == 'JSONHttpRequest') ||
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(array_key_exists('HTTP_ACCEPT', $_SERVER) &&
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strpos($_SERVER['HTTP_ACCEPT'], 'application/json') !== false)
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)
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{
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$this->_isJsonApi = true;
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}
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// parse parameters, depending on request type
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switch (array_key_exists('REQUEST_METHOD', $_SERVER) ? $_SERVER['REQUEST_METHOD'] : 'GET')
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{
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case 'DELETE':
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case 'PUT':
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parse_str(file_get_contents(self::$_inputStream), $this->_params);
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break;
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case 'POST':
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$this->_params = $_POST;
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break;
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default:
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$this->_params = $_GET;
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}
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if (
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!array_key_exists('pasteid', $this->_params) &&
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!array_key_exists('jsonld', $this->_params) &&
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array_key_exists('QUERY_STRING', $_SERVER) &&
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!empty($_SERVER['QUERY_STRING'])
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)
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{
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$this->_params['pasteid'] = $_SERVER['QUERY_STRING'];
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}
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// prepare operation, depending on current parameters
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if (
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(array_key_exists('data', $this->_params) && !empty($this->_params['data'])) ||
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(array_key_exists('attachment', $this->_params) && !empty($this->_params['attachment']))
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)
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{
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$this->_operation = 'create';
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}
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elseif (array_key_exists('pasteid', $this->_params) && !empty($this->_params['pasteid']))
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{
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if (array_key_exists('deletetoken', $this->_params) && !empty($this->_params['deletetoken']))
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{
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$this->_operation = 'delete';
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}
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else
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{
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$this->_operation = 'read';
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}
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}
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elseif (array_key_exists('jsonld', $this->_params) && !empty($this->_params['jsonld']))
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{
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$this->_operation = 'jsonld';
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}
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}
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/**
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* Get current operation.
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*
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* @access public
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* @return string
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*/
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public function getOperation()
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{
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return $this->_operation;
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}
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/**
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* Get a request parameter.
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*
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* @access public
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* @param string $param
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* @param string $default
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* @return string
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*/
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public function getParam($param, $default = '')
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{
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return array_key_exists($param, $this->_params) ? $this->_params[$param] : $default;
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}
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/**
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* If we are in a JSON API context.
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*
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* @access public
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* @return bool
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*/
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public function isJsonApiCall()
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{
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return $this->_isJsonApi;
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}
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/**
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* Override the default input stream source, used for unit testing.
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*
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* @param unknown $input
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*/
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public static function setInputStream($input)
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{
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self::$_inputStream = $input;
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}
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} |