我希望找到一种使用原生PHP的方法,获取包括头部和正文在内的我的脚本接收到的原始HTTP请求。阅读PHP文档后,我没有找到一种标准方法来获取原始请求,无论使用何种HTTP方法。
例如,当页面test.php被请求时,我想要获取完整的请求,如下所示:
GET /test.php HTTP/1.1
Host:....
....
....
对于POST、HEAD等请求也是一样的。
很奇怪,居然没有一种方法可以访问原始请求缓冲区!
看了一下手册,似乎没有提供原始请求的未解析访问方法以匹配你想要的,所以我怀疑你需要从$_SERVER
变量重新构建你想要的内容。我进行了快速搜索,并找到了这个类,做了一些小改动以获取GET / HTTP/1.1
,也许你会发现它符合你的需求。
<?php
/**
* Access the HTTP Request
*
* Found on http://www.daniweb.com/web-development/php/code/216846/get-http-request-headers-and-body
*/
class http_request {
/** additional HTTP headers not prefixed with HTTP_ in $_SERVER superglobal */
public $add_headers = array('CONTENT_TYPE', 'CONTENT_LENGTH');
/**
* Construtor
* Retrieve HTTP Body
* @param Array Additional Headers to retrieve
*/
function http_request($add_headers = false) {
$this->retrieve_headers($add_headers);
$this->body = @file_get_contents('php://input');
}
/**
* Retrieve the HTTP request headers from the $_SERVER superglobal
* @param Array Additional Headers to retrieve
*/
function retrieve_headers($add_headers = false) {
if ($add_headers) {
$this->add_headers = array_merge($this->add_headers, $add_headers);
}
if (isset($_SERVER['HTTP_METHOD'])) {
$this->method = $_SERVER['HTTP_METHOD'];
unset($_SERVER['HTTP_METHOD']);
} else {
$this->method = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : false;
}
$this->protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : false;
$this->request_method = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : false;
$this->headers = array();
foreach($_SERVER as $i=>$val) {
if (strpos($i, 'HTTP_') === 0 || in_array($i, $this->add_headers)) {
$name = str_replace(array('HTTP_', '_'), array('', '-'), $i);
$this->headers[$name] = $val;
}
}
}
/**
* Retrieve HTTP Method
*/
function method() {
return $this->method;
}
/**
* Retrieve HTTP Body
*/
function body() {
return $this->body;
}
/**
* Retrieve an HTTP Header
* @param string Case-Insensitive HTTP Header Name (eg: "User-Agent")
*/
function header($name) {
$name = strtoupper($name);
return isset($this->headers[$name]) ? $this->headers[$name] : false;
}
/**
* Retrieve all HTTP Headers
* @return array HTTP Headers
*/
function headers() {
return $this->headers;
}
/**
* Return Raw HTTP Request (note: This is incomplete)
* @param bool ReBuild the Raw HTTP Request
*/
function raw($refresh = false) {
if (isset($this->raw) && !$refresh) {
return $this->raw; // return cached
}
$headers = $this->headers();
$this->raw = "{$this->method} {$_SERVER['REQUEST_URI']} {$this->protocol}\r\n";
foreach($headers as $i=>$header) {
$this->raw .= "$i: $header\r\n";
}
$this->raw .= "\r\n{$this->body}";
return $this->raw;
}
}
/**
* Example Usage
* Echos the HTTP Request back to the client/browser
*/
$http_request = new http_request();
$resp = $http_request->raw();
echo nl2br($resp);
/* Result (less <br> tags)
GET / HTTP/1.1
HOST: localhost:8080
USER-AGENT: Mozilla/5.0 ...
ACCEPT: text/html,application/xhtml+xml,application/xml;...
ACCEPT-LANGUAGE: en-US,en;q=0.5
ACCEPT-ENCODING: gzip, deflate
DNT: 1
COOKIE: PHPSESSID=...
CONNECTION: keep-alive
*/
?>
提示:不要忘记在输出时对这些值进行htmlentities()处理 :)
原始请求对于PHP不可用,因为在PHP启动时,请求已经被消耗掉了。
例如,当PHP作为Apache模块(mod_php
)运行时,请求由Apache接收和解析,只有在Apache解析该请求并确定它引用应由PHP处理的文件后,才会调用PHP。如果PHP作为CGI或FastCGI处理程序运行,则根本不会接收到HTTP请求 - 它只会看到请求的CGI形式,这是完全不同的。
如果您使用Apache,请尝试以下方法:
function get_raw_http_request() {
$request = "$_SERVER[REQUEST_METHOD] $_SERVER[REQUEST_URI] $_SERVER[SERVER_PROTOCOL]\r\n";
foreach (getallheaders() as $name => $value) {
$request .= "$name: $value\r\n";
}
$request .= "\r\n" . file_get_contents('php://input');
return $request;
}
Accept:
标头的情况下)。- 看起来这就是 PHP 用户空间所能达到的最远程度了。 - hakre
$_SERVER
访问。 - Lawrence Cherone