<?php
/*
* 调用远程RESTful的客户端类
* 要求最低的PHP版本是5.2.0,并且还要支持以下库:cURL, Libxml 2.6.0
* This class for invoke remote RESTful Webservice
* The requirement of PHP version is 5.2.0 or above, and support as below:
* cURL, Libxml 2.6.0
*
* @Version: 0.0.1 alpha
* @Created: 11:06:48 2010/11/23
* @Author: Edison tsai<dnsing@gmail.com>
* @Blog: http://www.timescode.com
* @Link: http://www.dianboom.com
*/
class HttpRequestService{
#cURL Object
private $ch;
#Contains the last HTTP status code returned.
public $http_code;
#Contains the last API call.
private $http_url;
#Set up the API root URL.
public $api_url;
#Set timeout default.
public $timeout = 10;
#Set connect timeout.
public $connecttimeout = 30;
#Verify SSL Cert.
public $ssl_verifypeer = false;
#Response format.
public $format = ''; // Only support json & xml for extension
public $decodeFormat = 'json'; //default is json
public $_encode ='utf-8';
#Decode returned json data.
//public $decode_json = true;
#Contains the last HTTP headers returned.
public $http_info = array();
public $http_header = array();
private $contentType;
private $postFields;
private static $paramsOnUrlMethod = array('GET','DELETE');
private static $supportExtension = array('json','xml');
#For tmpFile
private $file = null;
#Set the useragnet.
private static $userAgent = 'Timescode_RESTClient v0.0.1-alpha';
public function __construct(){
$this->ch = curl_init();
/* cURL settings */
curl_setopt($this->ch, CURLOPT_USERAGENT, self::$userAgent);
curl_setopt($this->ch, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
curl_setopt($this->ch, CURLOPT_TIMEOUT, $this->timeout);
curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($this->ch, CURLOPT_AUTOREFERER, TRUE);
curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($this->ch, CURLOPT_HTTPHEADER, array('Expect:'));
curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
curl_setopt($this->ch, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
curl_setopt($this->ch, CURLOPT_HEADER, FALSE);
}
/**
* Execute calls
* @param $url String
* @param $method String
* @param $postFields String
* @param $username String
* @param $password String
* @param $contentType String
* @return RESTClient
*/
public function call($url,$method,$postFields=null,$username=null,$password=null,$contentType=null){
if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0 && !empty($this->format)) {
$url = "{$this->api_url}{$url}.{$this->format}";
}
$this->http_url = $url;
$this->contentType = $contentType;
$this->postFields = $postFields;
$url = in_array($method, self::$paramsOnUrlMethod) ? $this->to_url() : $this->get_http_url();
is_object($this->ch) or $this->__construct();
switch ($method) {
case 'POST':
curl_setopt($this->ch, CURLOPT_POST, TRUE);
if ($this->postFields != null) {
curl_setopt($this->ch, CURLOPT_POSTFIELDS, $this->postFields);
}
break;
case 'DELETE':
curl_setopt($this->ch, CURLOPT_CUSTOMREQUEST, 'DELETE');
break;
case 'PUT':
curl_setopt($this->ch, CURLOPT_PUT, TRUE);
if ($this->postFields != null) {
$this->file = tmpFile();
fwrite($this->file, $this->postFields);
fseek($this->file, 0);
curl_setopt($this->ch, CURLOPT_INFILE,$this->file);
curl_setopt($this->ch, CURLOPT_INFILESIZE,strlen($this->postFields));
}
break;
}
$this->setAuthorizeInfo($username, $password);
$this->contentType != null && curl_setopt($this->ch, CURLOPT_HTTPHEADER, array('Content-type:'.$this->contentType));
curl_setopt($this->ch, CURLOPT_URL, $url);
$response = curl_exec($this->ch);
$this->http_code = curl_getinfo($this->ch, CURLINFO_HTTP_CODE);
$this->http_info = array_merge($this->http_info, curl_getinfo($this->ch));
$this->close();
return $response;
}
public function call_fopen($url,$method,$postFields=null,$username=null,$password=null,$contentType=null){
if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0 && !empty($this->format)) {
$url = "{$this->api_url}{$url}.{$this->format}";
}
$this->http_url = $url;
$this->contentType = $contentType;
$this->postFields = $postFields;
$url = in_array($method, self::$paramsOnUrlMethod) ? $this->to_url() : $this->get_http_url();
$params = array('http' => array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded'."\r\n",
'content' => $this->create_post_body($this->postFields)
));
$ctx = stream_context_create($params);
$fp = fopen($url, 'rb', false, $ctx);
if (!$fp) {
die ("can not open server!");
}
$response = @stream_get_contents($fp);
if ($response === false) {
die ("can not get message form server!");
//throw new Exception("Problem reading data from {$url}, {$php_errormsg}");
}
return $response;
}
public function setEncode($encode){
!empty($encode) and $this->_encode = $encode;
return $this;
}
public static function convertEncoding($source, $in, $out){
$in = strtoupper($in);
$out = strtoupper($out);
if ($in == "UTF8"){
$in = "UTF-8";
}
if ($out == "UTF8"){
$out = "UTF-8";
}
if( $in==$out ){
return $source;
}
if(function_exists('mb_convert_encoding')) {
return mb_convert_encoding($source, $out, $in );
}elseif (function_exists('iconv')) {
return iconv($in,$out."//IGNORE", $source);
}
return $source;
}
/**
* POST wrapper,不基于curl函数,环境可以不支持curl函数
* @param method String
* @param parameters Array
* @return mixed
*/
public function do_post_request($url, $postdata, $files)
{
$data = "";
$boundary = "---------------------".substr(md5(rand(0,32000)), 0, 10);
//Collect Postdata
foreach($postdata as $key => $val)
{
$data .= "--$boundary\r\n";
$data .= "Content-Disposition: form-data; name=\"".$key."\"\r\n\r\n".$val."\r\n";
}
$data .= "--$boundary\r\n";
//Collect Filedata
foreach($files as $key => $file)
{
$fileContents = file_get_contents($file['tmp_name']);
$data .= "Content-Disposition: form-data; name=\"{$key}\"; filename=\"{$file['name']}\"\r\n";
$data .= "Content-Type: ".$file['type']."\r\n";
$data .= "Content-Transfer-Encoding: binary\r\n\r\n";
$data .= $fileContents."\r\n";
$data .= "--$boundary--\r\n";
}
$params = array('http' => array(
'method' => 'POST',
'header' => 'Content-Type: multipart/form-data; boundary='.$boundary,
'content' => $data
));
$ctx = stream_context_create($params);
$fp = fopen($url, 'rb', false, $ctx);
if (!$fp) {
die ("can not open server!");
}
$response = @stream_get_contents($fp);
if ($response === false) {
die ("can not get message form server!");
//throw new Exception("Problem reading data from {$url}, {$php_errormsg}");
}
return $response;
}
/**
* POST wrapper for insert data
* @param $url String
* @param $params mixed
* @param $username String
* @param $password String
* @param $contentType String
* @return RESTClient
*/
public function _POST($url,$params=null,$username=null,$password=null,$contentType=null) {
$response = $this->call($url,'POST',$params,$username,$password,$contentType);
//$this->convertEncoding($response,'utf-8',$this->_encode)
return $this->json_foreach($this->parseResponse($response));
}
public function _POST_FOPEN($url,$params=null,$username=null,$password=null,$contentType=null) {
$response = $this->call_fopen($url,'POST',$params,$username,$password,$contentType);
return $this->json_foreach($this->parseResponse($response));
}
public function _photoUpload($url, $postdata, $files) {
$response = $this->do_post_request($url, $postdata, $files);
return $this->json_foreach($this->parseResponse($response));
}
//将stdclass object转换成数组,并转换编码
public function json_foreach($jsonArr)
{
if(is_object($jsonArr))
{
$jsonArr=get_object_vars($jsonArr);
}
foreach($jsonArr AS $k=>$v){
if(is_array($v))
{
$jsonArr[$k]=$this->json_foreach($v);
}
elseif(is_object($v))
{
$v=get_object_vars($v);
$jsonArr[$k]=$this->json_foreach($v);
}
else
{
$v=$this->convertEncoding($v,"utf-8",$this->_encode);
$jsonArr[$k]=$v;
}
}
return $jsonArr;
}
/**
* PUT wrapper for update data
* @param $url String
* @param $params mixed
* @param $username String
* @param $password String
* @param $contentType String
* @return RESTClient
*/
public function _PUT($url,$params=null,$username=null,$password=null,$contentType=null) {
$response = $this->call($url,'PUT',$params,$username,$password,$contentType);
return $this->parseResponse($this->convertEncoding($response,'utf-8',$this->_encode));
}
public function create_post_body($post_params) {
$params = array();
foreach ($post_params as $key => &$val) {
if(is_array($val))
{
$val = implode(',', $val);
}
$params[] = $key.'='.urlencode($val);
}
return implode('&', $params);
}
/**
* GET wrapper for get data
* @param $url String
* @param $params mixed
* @param $username String
* @param $password String
* @return RESTClient
*/
public function _GET($url,$params=null,$username=null,$password=null) {
$response = $this->call($url,'GET',$params,$username,$password);
return $this->parseResponse($response);
}
/**
* DELETE wrapper for delete data
* @param $url String
* @param $params mixed
* @param $username String
* @param $password String
* @return RESTClient
*/
public function _DELETE($url,$params=null,$username=null,$password=null) {
#Modified by Edison tsai on 09:50 2010/11/26 for missing part
$response = $this->call($url,'DELETE',$params,$username,$password);
return $this->parseResponse($response);
}
/*
* Parse response, including json, xml, plain text
* @param $resp String
* @param $ext String, including json/xml
* @return String
*/
public function parseResponse($resp,$ext=''){
$ext = !in_array($ext, self::$supportExtension) ? $this->decodeFormat : $ext;
switch($ext){
case 'json':
$resp = json_decode($resp);break;
case 'xml':
$resp = self::xml_decode($resp);break;
}
return $resp;
}
/*
* XML decode
* @param $data String
* @param $toArray boolean, true for make it be array
* @return String
*/
public static function xml_decode($data,$toArray=false){
/* TODO: What to do with 'toArray'? Just write it as you need. */
$data = simplexml_load_string($data);
return $data;
}
public static function objectToArray($obj){
}
/**
* parses the url and rebuilds it to be
* scheme://host/path
*/
public function get_http_url() {
$parts = parse_url($this->http_url);
$port = @$parts['port'];
$scheme = $parts['scheme'];
$host = $parts['host'];
$path = @$parts['path'];
$port or $port = ($scheme == 'https') ? '443' : '80';
if (($scheme == 'https' && $port != '443')
|| ($scheme == 'http' && $port != '80')) {
$host = "$host:$port";
}
return "$scheme://$host$path";
}
/**
* builds a url usable for a GET request
*/
public function to_url() {
$post_data = $this->to_postdata();
$out = $this->get_http_url();
if ($post_data) {
$out .= '?'.$post_data;
}
return $out;
}
/**
* builds the data one would send in a POST request
*/
public function to_postdata() {
return http_build_query($this->postFields);
}
/**
* Settings that won't follow redirects
* @return RESTClient
*/
public function setNotFollow() {
curl_setopt($this->ch,CURLOPT_AUTOREFERER,FALSE);
curl_setopt($this->ch,CURLOPT_FOLLOWLOCATION,FALSE);
return $this;
}
/**
* Closes the connection and release resources
* @return void
*/
public function close() {
curl_close($this->ch);
if($this->file !=null) {
fclose($this->file);
}
}
/**
* Sets the URL to be Called
* @param $url String
* @return void
*/
public function setURL($url) {
$this->url = $url;
}
/**
* Sets the format type to be extension
* @param $format String
* @return boolean
*/
public function setFormat($format=null){
if($format==null)return false;
$this->format = $format;
return true;
}
/**
* Sets the format type to be decoded
* @param $format String
* @return boolean
*/
public function setDecodeFormat($format=null){
if($format==null)return false;
$this->decodeFormat = $format;
return true;
}
/**
* Set the Content-Type of the request to be send
* Format like "application/json" or "application/xml" or "text/plain" or other
* @param string $contentType
* @return void
*/
public function setContentType($contentType) {
$this->contentType = $contentType;
}
/**
* Set the authorize info for Basic Authentication
* @param $username String
* @param $password String
* @return void
*/
public function setAuthorizeInfo($username,$password) {
if($username != null) { #The password might be blank
curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($this->ch, CURLOPT_USERPWD, "{$username}:{$password}");
}
}
/**
* Set the Request HTTP Method
* @param $method String
* @return void
*/
public function setMethod($method) {
$this->method=$method;
}
/**
* Set Parameters to be send on the request
* It can be both a key/value par array (as in array("key"=>"value"))
* or a string containing the body of the request, like a XML, JSON or other
* Proper content-type should be set for the body if not a array
* @param $params mixed
* @return void
*/
public function setParameters($params) {
$this->postFields=$params;
}
/**
* Get the header info to store.
*/
public function getHeader($ch, $header) {
$i = strpos($header, ':');
if (!empty($i)) {
$key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
$value = trim(substr($header, $i + 2));
$this->http_header[$key] = $value;
}
return strlen($header);
}
}
?>
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