PHP代码:
<?php
/**************************************************************************************************
* Class: Advanced HTTP Client
***************************************************************************************************
* Version : 1.1
* Released : 06-20-2002
* Last Modified : 06-10-2003
* Author : GuinuX <guinux@cosmoplazza.com>
*
***************************************************************************************************
* Changes
***************************************************************************************************
* 2003-06-10 : GuinuX
* - Fixed a bug with multiple gets and basic auth
* - Added support for Basic proxy Authentification
* 2003-05-25: By Michael Mauch <michael.mauch@gmx.de>
* - Fixed two occurences of the former "status" member which is now deprecated
* 2002-09-23: GuinuX
* - Fixed a bug to the post method with some HTTP servers
* - Thanx to l0rd jenci <lord_jenci@bigfoot.com> for reporting this bug.
* 2002-09-07: Dirk Fokken <fokken@cross-consulting.com>
* - Deleted trailing characters at the end of the file, right after the php closing tag, in order
* to fix a bug with binary requests.
* 2002-20-06: GuinuX, Major changes
* - Turned to a more OOP style => added class http_header, http_response_header,
* http_request_message, http_response_message.
* The members : status, body, response_headers, cookies, _request_headers of the http class
* are Deprecated.
* 2002-19-06: GuinuX, fixed some bugs in the http::_get_response() method
* 2002-18-06: By Mate Jovic <jovic@matoma.de>
* - Added support for Basic Authentification
* usage: $http_client = new http( HTTP_V11, false, Array('user','pass') );
*
***************************************************************************************************
* Description:
***************************************************************************************************
* A HTTP client class
* Supports :
* - GET, HEAD and POST methods
* - Http cookies
* - multipart/form-data AND application/x-www-form-urlencoded
* - Chunked Transfer-Encoding
* - HTTP 1.0 and 1.1 protocols
* - Keep-Alive Connections
* - Proxy
* - Basic WWW-Authentification and Proxy-Authentification
*
***************************************************************************************************
* TODO :
***************************************************************************************************
* - Read trailing headers for Chunked Transfer-Encoding
***************************************************************************************************
* usage
***************************************************************************************************
* See example scripts.
*
***************************************************************************************************
* License
***************************************************************************************************
* GNU Lesser General Public License (LGPL)
* <a href="http://www.opensource.org/licenses/lgpl-license.html" target="_blank">http://www.opensource.org/licenses/lgpl-license.html</a>
*
* For any suggestions or bug report please contact me : guinux@cosmoplazza.com
***************************************************************************************************/
if ( !defined('HTTP_CRLF') ) define( 'HTTP_CRLF', chr(13) . chr(10));
define( 'HTTP_V10', '1.0');
define( 'HTTP_V11', '1.1');
define( 'HTTP_STATUS_CONTINUE', 100 );
define( 'HTTP_STATUS_SWITCHING_PROTOCOLS', 101 );
define( 'HTTP_STATUS_OK', 200 );
define( 'HTTP_STATUS_CREATED', 201 );
define( 'HTTP_STATUS_ACCEPTED', 202 );
define( 'HTTP_STATUS_NON_AUTHORITATIVE', 203 );
define( 'HTTP_STATUS_NO_CONTENT', 204 );
define( 'HTTP_STATUS_RESET_CONTENT', 205 );
define( 'HTTP_STATUS_PARTIAL_CONTENT', 206 );
define( 'HTTP_STATUS_MULTIPLE_CHOICES', 300 );
define( 'HTTP_STATUS_MOVED_PERMANENTLY', 301 );
define( 'HTTP_STATUS_FOUND', 302 );
define( 'HTTP_STATUS_SEE_OTHER', 303 );
define( 'HTTP_STATUS_NOT_MODIFIED', 304 );
define( 'HTTP_STATUS_USE_PROXY', 305 );
define( 'HTTP_STATUS_TEMPORARY_REDIRECT', 307 );
define( 'HTTP_STATUS_BAD_REQUEST', 400 );
define( 'HTTP_STATUS_UNAUTHORIZED', 401 );
define( 'HTTP_STATUS_FORBIDDEN', 403 );
define( 'HTTP_STATUS_NOT_FOUND', 404 );
define( 'HTTP_STATUS_METHOD_NOT_ALLOWED', 405 );
define( 'HTTP_STATUS_NOT_ACCEPTABLE', 406 );
define( 'HTTP_STATUS_PROXY_AUTH_REQUIRED', 407 );
define( 'HTTP_STATUS_REQUEST_TIMEOUT', 408 );
define( 'HTTP_STATUS_CONFLICT', 409 );
define( 'HTTP_STATUS_GONE', 410 );
define( 'HTTP_STATUS_REQUEST_TOO_LARGE', 413 );
define( 'HTTP_STATUS_URI_TOO_LONG', 414 );
define( 'HTTP_STATUS_SERVER_ERROR', 500 );
define( 'HTTP_STATUS_NOT_IMPLEMENTED', 501 );
define( 'HTTP_STATUS_BAD_GATEWAY', 502 );
define( 'HTTP_STATUS_SERVICE_UNAVAILABLE', 503 );
define( 'HTTP_STATUS_VERSION_NOT_SUPPORTED', 505 );
/******************************************************************************************
* class http_header
******************************************************************************************/
class http_header {
var $_headers;
var $_debug;
function http_header() {
$this->_headers = Array();
$this->_debug = '';
} // End Of function http_header()
function get_header( $header_name ) {
$header_name = $this->_format_header_name( $header_name );
if (isset($this->_headers[$header_name]))
return $this->_headers[$header_name];
else
return null;
} // End of function get()
function set_header( $header_name, $value ) {
if ($value != '') {
$header_name = $this->_format_header_name( $header_name );
$this->_headers[$header_name] = $value;
}
} // End of function set()
function reset() {
if ( count( $this->_headers ) > 0 ) $this->_headers = array();
$this->_debug .= "\n--------------- RESETED ---------------\n";
} // End of function clear()
function serialize_headers() {
$str = '';
foreach ( $this->_headers as $name=>$value) {
$str .= "$name: $value" . HTTP_CRLF;
}
return $str;
} // End of function serialize_headers()
function _format_header_name( $header_name ) {
$formatted = str_replace( '-', ' ', strtolower( $header_name ) );
$formatted = ucwords( $formatted );
$formatted = str_replace( ' ', '-', $formatted );
return $formatted;
}
function add_debug_info( $data ) {
$this->_debug .= $data;
}
function get_debug_info() {
return $this->_debug;
}
} // End Of Class http_header
/******************************************************************************************
* class http_response_header
******************************************************************************************/
class http_response_header extends http_header {
var $cookies_headers;
function http_response_header() {
$this->cookies_headers = array();
http_header::http_header();
} // End of function http_response_header()
function deserialize_headers( $flat_headers ) {
$flat_headers = preg_replace( "/^" . HTTP_CRLF . "/", '', $flat_headers );
$tmp_headers = split( HTTP_CRLF, $flat_headers );
if (preg_match("'HTTP/(d.d)s+(d+).*'i", $tmp_headers[0], $matches )) {
$this->set_header( 'Protocol-Version', $matches[1] );
$this->set_header( 'Status', $matches[2] );
}
array_shift( $tmp_headers );
foreach( $tmp_headers as $index=>$value ) {
$pos = strpos( $value, ':' );
if ( $pos ) {
$key = substr( $value, 0, $pos );
$value = trim( substr( $value, $pos +1) );
if ( strtoupper($key) == 'SET-COOKIE' )
$this->cookies_headers[] = $value;
else
$this->set_header( $key, $value );
}
}
} // End of function deserialize_headers()
function reset() {
if ( count( $this->cookies_headers ) > 0 ) $this->cookies_headers = array();
http_header::reset();
}
} // End of class http_response_header
/******************************************************************************************
* class http_request_message
******************************************************************************************/
class http_request_message extends http_header {
var $body;
function http_request_message() {
$this->body = '';
http_header::http_header();
} // End of function http_message()
function reset() {
$this->body = '';
http_header::reset();
}
}
/******************************************************************************************
* class http_response_message
******************************************************************************************/
class http_response_message extends http_response_header {
var $body;
var $cookies;
function http_response_message() {
$this->cookies = new http_cookie();
$this->body = '';
http_response_header::http_response_header();
} // End of function http_response_message()
function get_status() {
if ( $this->get_header( 'Status' ) != null )
return (integer)$this->get_header( 'Status' );
else
return -1;
}
function get_protocol_version() {
if ( $this->get_header( 'Protocol-Version' ) != null )
return $this->get_header( 'Protocol-Version' );
else
return HTTP_V10;
}
function get_content_type() {
$this->get_header( 'Content-Type' );
}
function get_body() {
return $this->body;
}
function reset() {
$this->body = '';
http_response_header::reset();
}
function parse_cookies( $host ) {
for ( $i = 0; $i < count( $this->cookies_headers ); $i++ )
$this->cookies->parse( $this->cookies_headers[$i], $host );
}
}
/******************************************************************************************
* class http_cookie
******************************************************************************************/
class http_cookie {
var $cookies;
function http_cookie() {
$this->cookies = array();
} // End of function http_cookies()
function _now() {
return strtotime( gmdate( "l, d-F-Y H:i:s", time() ) );
} // End of function _now()
function _timestamp( $date ) {
if ( $date == '' ) return $this->_now()+3600;
$time = strtotime( $date );
return ($time>0?$time:$this->_now()+3600);
} // End of function _timestamp()
function get( $current_domain, $current_path ) {
$cookie_str = '';
$now = $this->_now();
$new_cookies = array();
foreach( $this->cookies as $cookie_name => $cookie_data ) {
if ($cookie_data['expires'] > $now) {
$new_cookies[$cookie_name] = $cookie_data;
$domain = preg_quote( $cookie_data['domain'] );
$path = preg_quote( $cookie_data['path'] );
if ( preg_match( "'.*$domain$'i", $current_domain ) && preg_match( "'^$path.*'i", $current_path ) )
$cookie_str .= $cookie_name . '=' . $cookie_data['value'] . '; ';
}
}
$this->cookies = $new_cookies;
return $cookie_str;
} // End of function get()
function set( $name, $value, $domain, $path, $expires ) {
$this->cookies[$name] = array( 'value' => $value,
'domain' => $domain,
'path' => $path,
'expires' => $this->_timestamp( $expires )
);
} // End of function set()
function parse( $cookie_str, $host ) {
$cookie_str = str_replace( '; ', ';', $cookie_str ) . ';';
$data = split( ';', $cookie_str );
$value_str = $data[0];
$cookie_param = 'domain=';
$start = strpos( $cookie_str, $cookie_param );
if ( $start > 0 ) {
$domain = substr( $cookie_str, $start + strlen( $cookie_param ) );
$domain = substr( $domain, 0, strpos( $domain, ';' ) );
} else
$domain = $host;
$cookie_param = 'expires=';
$start = strpos( $cookie_str, $cookie_param );
if ( $start > 0 ) {
$expires = substr( $cookie_str, $start + strlen( $cookie_param ) );
$expires = substr( $expires, 0, strpos( $expires, ';' ) );
} else
$expires = '';
$cookie_param = 'path=';
$start = strpos( $cookie_str, $cookie_param );
if ( $start > 0 ) {
$path = substr( $cookie_str, $start + strlen( $cookie_param ) );
$path = substr( $path, 0, strpos( $path, ';' ) );
} else
$path = '/';
$sep_pos = strpos( $value_str, '=');
if ($sep_pos){
$name = substr( $value_str, 0, $sep_pos );
$value = substr( $value_str, $sep_pos+1 );
$this->set( $name, $value, $domain, $path, $expires );
}
} // End of function parse()
} // End of class http_cookie
/******************************************************************************************
* class http
******************************************************************************************/
class http {
var $_socket;
var $host;
var $port;
var $http_version;
var $user_agent;
var $errstr;
var $connected;
var $uri;
var $_proxy_host;
var $_proxy_port;
var $_proxy_login;
var $_proxy_pwd;
var $_use_proxy;
var $_auth_login;
var $_auth_pwd;
var $_response;
var $_request;
var $_keep_alive;
function http( $http_version = HTTP_V10, $keep_alive = false, $auth = false ) {
$this->http_version = $http_version;
$this->connected = false;
$this->user_agent = 'CosmoHttp/1.1 (compatible; MSIE 5.5; Linux)';
$this->host = '';
$this->port = 80;
$this->errstr = '';
$this->_keep_alive = $keep_alive;
$this->_proxy_host = '';
$this->_proxy_port = -1;
$this->_proxy_login = '';
$this->_proxy_pwd = '';
$this->_auth_login = '';
$this->_auth_pwd = '';
$this->_use_proxy = false;
$this->_response = new http_response_message();
$this->_request = new http_request_message();
// Basic Authentification added by Mate Jovic, 2002-18-06, jovic@matoma.de
if( is_array($auth) && count($auth) == 2 ){
$this->_auth_login = $auth[0];
$this->_auth_pwd = $auth[1];
}
} // End of Constuctor
function use_proxy( $host, $port, $proxy_login = null, $proxy_pwd = null ) {
// Proxy auth not yet supported
$this->http_version = HTTP_V10;
$this->_keep_alive = false;
$this->_proxy_host = $host;
$this->_proxy_port = $port;
$this->_proxy_login = $proxy_login;
$this->_proxy_pwd = $proxy_pwd;
$this->_use_proxy = true;
}
function set_request_header( $name, $value ) {
$this->_request->set_header( $name, $value );
}
function get_response_body() {
return $this->_response->body;
}
function get_response() {
return $this->_response;
}
function head( $uri ) {
$this->uri = $uri;
if ( ($this->_keep_alive && !$this->connected) || !$this->_keep_alive ) {
if ( !$this->_connect() ) {
$this->errstr = 'Could not connect to ' . $this->host;
return -1;
}
}
$http_cookie = $this->_response->cookies->get( $this->host, $this->_current_directory( $uri ) );
if ($this->_use_proxy) {
$this->_request->set_header( 'Host', $this->host . ':' . $this->port );
$this->_request->set_header( 'Proxy-Connection', ($this->_keep_alive?'Keep-Alive':'Close') );
if ( $this->_proxy_login != '' ) $this->_request->set_header( 'Proxy-Authorization', "Basic " . base64_encode( $this->_proxy_login . ":" . $this->_proxy_pwd ) );
$uri = 'http://' . $this->host . ':' . $this->port . $uri;
} else {
$this->_request->set_header( 'Host', $this->host );
$this->_request->set_header( 'Connection', ($this->_keep_alive?'Keep-Alive':'Close') );
}
if ( $this->_auth_login != '' ) $this->_request->set_header( 'Authorization', "Basic " . base64_encode( $this->_auth_login . ":" . $this->_auth_pwd ) );
$this->_request->set_header( 'User-Agent', $this->user_agent );
$this->_request->set_header( 'Accept', '*/*' );
$this->_request->set_header( 'Cookie', $http_cookie );
$cmd = "HEAD $uri HTTP/" . $this->http_version . HTTP_CRLF .
$this->_request->serialize_headers() .
HTTP_CRLF;
fwrite( $this->_socket, $cmd );
$this->_request->add_debug_info( $cmd );
$this->_get_response( false );
if ($this->_socket && !$this->_keep_alive) $this->disconnect();
if ( $this->_response->get_header( 'Connection' ) != null ) {
if ( $this->_keep_alive && strtolower( $this->_response->get_header( 'Connection' ) ) == 'close' ) {
$this->_keep_alive = false;
$this->disconnect();
}
}
if ( $this->_response->get_status() == HTTP_STATUS_USE_PROXY ) {
$location = $this->_parse_location( $this->_response->get_header( 'Location' ) );
$this->disconnect();
$this->use_proxy( $location['host'], $location['port'] );
$this->head( $this->uri );
}
return $this->_response->get_header( 'Status' );
} // End of function head()
function get( $uri, $follow_redirects = true, $referer = '' ) {
$this->uri = $uri;
if ( ($this->_keep_alive && !$this->connected) || !$this->_keep_alive ) {
if ( !$this->_connect() ) {
$this->errstr = 'Could not connect to ' . $this->host;
return -1;
}
}
if ($this->_use_proxy) {
$this->_request->set_header( 'Host', $this->host . ':' . $this->port );
$this->_request->set_header( 'Proxy-Connection', ($this->_keep_alive?'Keep-Alive':'Close') );
if ( $this->_proxy_login != '' ) $this->_request->set_header( 'Proxy-Authorization', "Basic " . base64_encode( $this->_proxy_login . ":" . $this->_proxy_pwd ) );
$uri = 'http://' . $this->host . ':' . $this->port . $uri;
} else {
$this->_request->set_header( 'Host', $this->host );
$this->_request->set_header( 'Connection', ($this->_keep_alive?'Keep-Alive':'Close') );
$this->_request->set_header( 'Pragma', 'no-cache' );
$this->_request->set_header( 'Cache-Control', 'no-cache' );
}
if ( $this->_auth_login != '' ) $this->_request->set_header( 'Authorization', "Basic " . base64_encode( $this->_auth_login . ":" . $this->_auth_pwd ) );
$http_cookie = $this->_response->cookies->get( $this->host, $this->_current_directory( $uri ) );
$this->_request->set_header( 'User-Agent', $this->user_agent );
$this->_request->set_header( 'Accept', '*/*' );
$this->_request->set_header( 'Referer', $referer );
$this->_request->set_header( 'Cookie', $http_cookie );
$cmd = "GET $uri HTTP/" . $this->http_version . HTTP_CRLF .
$this->_request->serialize_headers() .
HTTP_CRLF;
fwrite( $this->_socket, $cmd );
$this->_request->add_debug_info( $cmd );
$this->_get_response();
if ($this->_socket && !$this->_keep_alive) $this->disconnect();
if ( $this->_response->get_header( 'Connection' ) != null ) {
if ( $this->_keep_alive && strtolower( $this->_response->get_header( 'Connection' ) ) == 'close' ) {
$this->_keep_alive = false;
$this->disconnect();
}
}
if ( $follow_redirects && ($this->_response->get_status() == HTTP_STATUS_MOVED_PERMANENTLY || $this->_response->get_status() == HTTP_STATUS_FOUND || $this->_response->get_status() == HTTP_STATUS_SEE_OTHER ) ) {
if ( $this->_response->get_header( 'Location' ) != null ) {
$this->_redirect( $this->_response->get_header( 'Location' ) );
}
}
if ( $this->_response->get_status() == HTTP_STATUS_USE_PROXY ) {
$location = $this->_parse_location( $this->_response->get_header( 'Location' ) );
$this->disconnect();
$this->use_proxy( $location['host'], $location['port'] );
$this->get( $this->uri, $referer );
}
return $this->_response->get_status();
} // End of function get()
function multipart_post( $uri, &$form_fields, $form_files = null, $follow_redirects = true, $referer = '' ) {
$this->uri = $uri;
if ( ($this->_keep_alive && !$this->connected) || !$this->_keep_alive ) {
if ( !$this->_connect() ) {
$this->errstr = 'Could not connect to ' . $this->host;
return -1;
}
}
$boundary = uniqid('------------------');
$http_cookie = $this->_response->cookies->get( $this->host, $this->_current_directory( $uri ) );
$body = $this->_merge_multipart_form_data( $boundary, $form_fields, $form_files );
$this->_request->body = $body . HTTP_CRLF;
$content_length = strlen( $body );
if ($this->_use_proxy) {
$this->_request->set_header( 'Host', $this->host . ':' . $this->port );
$this->_request->set_header( 'Proxy-Connection', ($this->_keep_alive?'Keep-Alive':'Close') );
if ( $this->_proxy_login != '' ) $this->_request->set_header( 'Proxy-Authorization', "Basic " . base64_encode( $
