<?php
	if ( isset( $_GET[ 'url' ] ) ) {

		/*
		** Function converting a key-index array to a string
		*/

		function arrayToString( $array, $format = '%s => %s', $delimiter = "\r\n" ) {
			$pieces = Array( );
			foreach ( $array as $key => $value ) {
				$pieces[ ] = sprintf( $format, $key, $value );
			}
			return implode( $delimiter, $pieces );
		}

		/*
		** Make sure the url is correct and complete it if needed
		*/

		// Get the urls
		$request_url = $_GET[ 'url' ];
		$script_url = 'http' . ( isset( $_SERVER['HTTPS'] ) ? 's' : '' ) . '://' . $_SERVER[ 'HTTP_HOST' ] . $_SERVER['SCRIPT_NAME'];


		/*
		** Take care of the information to send with the request
		*/

		// The POST data
		$request_content = arrayToString( $_POST, '%s=%s', '&' );

		// The headers
		$request_headers = arrayToString( apache_request_headers( ), '%s: %s' );

		// The method
		$request_method = $_SERVER[ 'REQUEST_METHOD' ];

		// Set default context so that it is used by both get_headers( ) and file_get_contens( )
		$context = Array(
			'content' => $request_content,
			'follow_location' => false,
			'header' => $request_headers,
			'method' => $request_method
		);
		stream_context_get_default(
			Array(
				'http' => $context
			)
		);

		/*
		** Send headers
		*/

		// Get the headers as a key-index array
		$response_headers = get_headers( $request_url, true );

		// For each header
		foreach( $response_headers as $key => $value ) {
			if ( $key == '0' ) {// if it is the first ligne
				// split it to see the different parts
				$tmp = explode( ' ', $value );
				$response_version = array_shift( $tmp );
				$response_code = array_shift( $tmp );
				$response_message = implode( ' ', $tmp );
				// And send it
				header( $value );
			} else {// if it is a normal header
				if ( $key == 'Location' ) {// if it is Location
					// add the script url in front of it so that we continue to use the proxy
					$value = $script_url . '?url=' . $value;
				}
				// send the header
				header( $key . ': ' . $value );
			}
		}

		// Add the header to allow XDR from domain
		header( 'Access-Control-Allow-Origin: *' );

		/*
		** Send content
		*/

		// if there was no error
		if ( $response_code == '200' ) {
			// output the content
			echo file_get_contents( $request_url );
		} else {
			print_r( $response_headers );
		}
	} else {
		echo 'Query string missing!';
	}
?>