/**
* 发起http请求, 并返回响应内容
*
* @param [string] $path
* url的拼接部份,将拼接到urlBase部份
* @param [string] $method
* 使用的http请求方法, 目前只支持GET和POST
* @param [mixed] $payload
* 请求时的附加的数据.
* @param [array] $reqHeaders
* 请求时附加的header信息
* @param [array] $curlOpts
* 每次请求时, 对curl的配置信息.
* @throws HttpException 请求异常时, 抛出异常
* @return array http response信息 , 具有如下结构 array(
* httpProtocol:'',
* status:'',
* statusMsg:'',
* header:array(),
* content:""
* )
*/
function request($path = '', $method = "GET", $payload = "", $reqHeaders = null, $curlOpts = null)
{
if ($path === null) {
throw new HttpException('path must be string');
}
// 决定访问位置
$url = $this->resolve($path);
$curlOptsFinal = $this->currentOpts;
if (is_array($curlOpts)) {
foreach ($curlOpts as $k => $v) {
$curlOptsFinal[$k] = $v;
}
}
if (is_array($reqHeaders)) {
if (!is_array($curlOptsFinal[CURLOPT_HTTPHEADER])) {
$curlOptsFinal[CURLOPT_HTTPHEADER] = array();
// 这玩意必须是个数组.不是就直接覆盖.
}
$curlOptsFinal[CURLOPT_HTTPHEADER] = array_merge($curlOptsFinal[CURLOPT_HTTPHEADER], $reqHeaders);
//print_r($curlOptsFinal);
}
$port = parse_url($url, PHP_URL_PORT);
$curlOptsFinal[CURLOPT_URL] = $url;
$curlOptsFinal[CURLOPT_PORT] = empty($port) ? 80 : $port;
$req = curl_init();
curl_setopt_array($req, $curlOptsFinal);
switch ($method) {
case self::HTTP_GET:
curl_setopt($req, CURLOPT_CUSTOMREQUEST, 'GET');
break;
case self::HTTP_POST:
curl_setopt($req, CURLOPT_POST, true);
curl_setopt($req, CURLOPT_POSTFIELDS, $payload);
break;
default:
throw new HttpException("method not be support");
}
$response = curl_exec($req);
$errCode = curl_errno($req);
if ($errCode === 0) {
curl_close($req);
// log http access
$response = $this->parseResponse($response);
$status = $response['status'];
$this->log->log("HttpRequest: {$status} {$method} {$url}");
return $response;
} else {
// get message and close curl resource;
$errMsg = curl_error($req);
curl_close($req);
throw new HttpException("curl_error({$errMsg}); with url({$url})", $errCode);
}
}
}
include_once PUSH_SDK_HOME . '/lib/PushSimpleLog.php';
/**
* 取得根据http状态码取得对应的默认状态消息
* @param unknown $code
*/
function send_http_status($code)
{
static $_status = array(100 => 'Continue', 101 => 'Switching Protocols', 200 => 'OK', 201 => 'Created', 202 => 'Accepted', 203 => 'Non-Authoritative Information', 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content', 300 => 'Multiple Choices', 301 => 'Moved Permanently', 302 => 'Moved Temporarily ', 303 => 'See Other', 304 => 'Not Modified', 305 => 'Use Proxy', 307 => 'Temporary Redirect', 400 => 'Bad Request', 401 => 'Unauthorized', 402 => 'Payment Required', 403 => 'Forbidden', 404 => 'Not Found', 405 => 'Method Not Allowed', 406 => 'Not Acceptable', 407 => 'Proxy Authentication Required', 408 => 'Request Timeout', 409 => 'Conflict', 410 => 'Gone', 411 => 'Length Required', 412 => 'Precondition Failed', 413 => 'Request Entity Too Large', 414 => 'Request-URI Too Long', 415 => 'Unsupported Media Type', 416 => 'Requested Range Not Satisfiable', 417 => 'Expectation Failed', 500 => 'Internal Server Error', 501 => 'Not Implemented', 502 => 'Bad Gateway', 503 => 'Service Unavailable', 504 => 'Gateway Timeout', 505 => 'HTTP Version Not Supported', 509 => 'Bandwidth Limit Exceeded');
if (array_key_exists($code, $_status)) {
header('HTTP/1.1 ' . $code . ' ' . $_status[$code]);
}
}
$log = new PushSimpleLog('stdout', 0);
if (array_key_exists('q', $_REQUEST)) {
$log->log(print_r($_REQUEST['q'], true));
switch ($_REQUEST['q']) {
case "404_1":
send_http_status(404);
echo '{"request_id":100, "error_code":10000 , "error_msg":"what is that??"}';
break;
case "404_2":
send_http_status(404);
echo 'what is this??';
break;
case "200_1":
send_http_status(200);
echo '{"request_id":100, "response_params":[1,2,3,4]}';
break;
case "200_2":
send_http_status(200);
/**
* 解析response并判断响应内容是否正确.
* 如果结果符合restAPI结果格式,则返回结果中包含的response_params内容, 否则依据配置中是不是压制错误产生错误或返回null
*
* @param array $response
* 由httpRequest对象get,post,request等方法返回的结果数组
* @return mixed|NULL
*/
public function parse($response)
{
extract($response);
$this->log->log("Parse Response: {$status}, {$statusMsg}, {$content}");
$result = json_decode($content, true);
if ($result !== null && array_key_exists('request_id', $result)) {
if ($status == 200) {
if (array_key_exists('response_params', $result)) {
// 状态200,并且成功解析出json结果. 表示请求成功
$this->onError($result['request_id']);
return $result['response_params'];
} else {
// json可以解析, 但是格式不可理解.
$this->onError($result['request_id'], 4, "http status is ok, but REST returned invalid json struct.");
}
} else {
if (array_key_exists('error_code', $result) && array_key_exists('error_msg', $result)) {
// 状态不等于200, 但能解析出结果. 表示请求成功, 但是服务端返回错误
$this->onError($result['request_id'], $result['error_code'], $result['error_msg']);
} else {
// json可以解析, 但是格式不可理解.
$this->onError($result['request_id'], 4, "http status is ok, but REST returned invalid json struct.");
}
}
} else {
if ($status == 200) {
// 无法解析出json, 响应200,
$this->onError(null, 4, "http status is ok, but REST returned invalid json string.");
} elseif ($status >= 400) {
// 无法解析出json, 但是响应一个可理解的http错误
$this->onError(null, $status, "http response status : {$statusMsg}");
} else {
// 响应200-399 , 即除200外任意http成功状态, 均不能被理解, 响应 (-1) 错误.
$limitContent = strlen($content);
if ($limitContent > 0) {
$limitContent = substr($content, 200) . "..." . strlen($content);
} else {
$limitContent = 'Empty';
}
$this->onError(null, -1, "Can not process the http response. with status ({$status}, {$statusMsg}), content ({$limitContent});");
}
}
return false;
}