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Michael Hamann authoredMichael Hamann authored
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HTTPClient.php 31.48 KiB
<?php
/**
* HTTP Client
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Goetz <cpuidle@gmx.de>
*/
define('HTTP_NL',"\r\n");
/**
* Adds DokuWiki specific configs to the HTTP client
*
* @author Andreas Goetz <cpuidle@gmx.de>
*/
class DokuHTTPClient extends HTTPClient {
/**
* Constructor.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function __construct(){
global $conf;
// call parent constructor
parent::__construct();
// set some values from the config
$this->proxy_host = $conf['proxy']['host'];
$this->proxy_port = $conf['proxy']['port'];
$this->proxy_user = $conf['proxy']['user'];
$this->proxy_pass = conf_decodeString($conf['proxy']['pass']);
$this->proxy_ssl = $conf['proxy']['ssl'];
$this->proxy_except = $conf['proxy']['except'];
}
/**
* Wraps an event around the parent function
*
* @triggers HTTPCLIENT_REQUEST_SEND
* @author Andreas Gohr <andi@splitbrain.org>
*/
function sendRequest($url,$data='',$method='GET'){
$httpdata = array('url' => $url,
'data' => $data,
'method' => $method);
$evt = new Doku_Event('HTTPCLIENT_REQUEST_SEND',$httpdata);
if($evt->advise_before()){
$url = $httpdata['url'];
$data = $httpdata['data'];
$method = $httpdata['method'];
}
$evt->advise_after();
unset($evt);
return parent::sendRequest($url,$data,$method);
}
}
class HTTPClientException extends Exception { }
/**
* This class implements a basic HTTP client
*
* It supports POST and GET, Proxy usage, basic authentication,
* handles cookies and referers. It is based upon the httpclient * function from the VideoDB project.
*
* @link http://www.splitbrain.org/go/videodb
* @author Andreas Goetz <cpuidle@gmx.de>
* @author Andreas Gohr <andi@splitbrain.org>
* @author Tobias Sarnowski <sarnowski@new-thoughts.org>
*/
class HTTPClient {
//set these if you like
var $agent; // User agent
var $http; // HTTP version defaults to 1.0
var $timeout; // read timeout (seconds)
var $cookies;
var $referer;
var $max_redirect;
var $max_bodysize;
var $max_bodysize_abort = true; // if set, abort if the response body is bigger than max_bodysize
var $header_regexp; // if set this RE must match against the headers, else abort
var $headers;
var $debug;
var $start = 0; // for timings
var $keep_alive = true; // keep alive rocks
// don't set these, read on error
var $error;
var $redirect_count;
// read these after a successful request
var $status;
var $resp_body;
var $resp_headers;
// set these to do basic authentication
var $user;
var $pass;
// set these if you need to use a proxy
var $proxy_host;
var $proxy_port;
var $proxy_user;
var $proxy_pass;
var $proxy_ssl; //boolean set to true if your proxy needs SSL
var $proxy_except; // regexp of URLs to exclude from proxy
// list of kept alive connections
static $connections = array();
// what we use as boundary on multipart/form-data posts
var $boundary = '---DokuWikiHTTPClient--4523452351';
/**
* Constructor.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function __construct(){
$this->agent = 'Mozilla/4.0 (compatible; DokuWiki HTTP Client; '.PHP_OS.')';
$this->timeout = 15;
$this->cookies = array();
$this->referer = '';
$this->max_redirect = 3;
$this->redirect_count = 0;
$this->status = 0;
$this->headers = array();
$this->http = '1.0';
$this->debug = false;
$this->max_bodysize = 0;
$this->header_regexp= '';
if(extension_loaded('zlib')) $this->headers['Accept-encoding'] = 'gzip';
$this->headers['Accept'] = 'text/xml,application/xml,application/xhtml+xml,'. 'text/html,text/plain,image/png,image/jpeg,image/gif,*/*';
$this->headers['Accept-Language'] = 'en-us';
}
/**
* Simple function to do a GET request
*
* Returns the wanted page or false on an error;
*
* @param string $url The URL to fetch
* @param bool $sloppy304 Return body on 304 not modified
* @return bool|string response body, false on error
* @author Andreas Gohr <andi@splitbrain.org>
*/
function get($url,$sloppy304=false){
if(!$this->sendRequest($url)) return false;
if($this->status == 304 && $sloppy304) return $this->resp_body;
if($this->status < 200 || $this->status > 206) return false;
return $this->resp_body;
}
/**
* Simple function to do a GET request with given parameters
*
* Returns the wanted page or false on an error.
*
* This is a convenience wrapper around get(). The given parameters
* will be correctly encoded and added to the given base URL.
*
* @param string $url The URL to fetch
* @param array $data Associative array of parameters
* @param bool $sloppy304 Return body on 304 not modified
* @return bool|string response body, false on error
* @author Andreas Gohr <andi@splitbrain.org>
*/
function dget($url,$data,$sloppy304=false){
if(strpos($url,'?')){
$url .= '&';
}else{
$url .= '?';
}
$url .= $this->_postEncode($data);
return $this->get($url,$sloppy304);
}
/**
* Simple function to do a POST request
*
* Returns the resulting page or false on an error;
*
* @param string $url The URL to fetch
* @param array $data Associative array of parameters
* @return bool|string response body, false on error
* @author Andreas Gohr <andi@splitbrain.org>
*/
function post($url,$data){
if(!$this->sendRequest($url,$data,'POST')) return false;
if($this->status < 200 || $this->status > 206) return false;
return $this->resp_body;
}
/**
* Send an HTTP request
*
* This method handles the whole HTTP communication. It respects set proxy settings,
* builds the request headers, follows redirects and parses the response.
*
* Post data should be passed as associative array. When passed as string it will be
* sent as is. You will need to setup your own Content-Type header then. *
* @param string $url - the complete URL
* @param mixed $data - the post data either as array or raw data
* @param string $method - HTTP Method usually GET or POST.
* @return bool - true on success
* @author Andreas Goetz <cpuidle@gmx.de>
* @author Andreas Gohr <andi@splitbrain.org>
*/
function sendRequest($url,$data='',$method='GET'){
$this->start = $this->_time();
$this->error = '';
$this->status = 0;
$this->status = 0;
$this->resp_body = '';
$this->resp_headers = array();
// don't accept gzip if truncated bodies might occur
if($this->max_bodysize &&
!$this->max_bodysize_abort &&
$this->headers['Accept-encoding'] == 'gzip'){
unset($this->headers['Accept-encoding']);
}
// parse URL into bits
$uri = parse_url($url);
$server = $uri['host'];
$path = $uri['path'];
if(empty($path)) $path = '/';
if(!empty($uri['query'])) $path .= '?'.$uri['query'];
if(!empty($uri['port'])) $port = $uri['port'];
if(isset($uri['user'])) $this->user = $uri['user'];
if(isset($uri['pass'])) $this->pass = $uri['pass'];
// proxy setup
if($this->proxy_host && (!$this->proxy_except || !preg_match('/'.$this->proxy_except.'/i',$url)) ){
$request_url = $url;
$server = $this->proxy_host;
$port = $this->proxy_port;
if (empty($port)) $port = 8080;
}else{
$request_url = $path;
$server = $server;
if (!isset($port)) $port = ($uri['scheme'] == 'https') ? 443 : 80;
}
// add SSL stream prefix if needed - needs SSL support in PHP
if($port == 443 || $this->proxy_ssl) $server = 'ssl://'.$server;
// prepare headers
$headers = $this->headers;
$headers['Host'] = $uri['host'];
if(!empty($uri['port'])) $headers['Host'].= ':'.$uri['port'];
$headers['User-Agent'] = $this->agent;
$headers['Referer'] = $this->referer;
if($method == 'POST'){
if(is_array($data)){
if($headers['Content-Type'] == 'multipart/form-data'){
$headers['Content-Type'] = 'multipart/form-data; boundary='.$this->boundary;
$data = $this->_postMultipartEncode($data);
}else{
$headers['Content-Type'] = 'application/x-www-form-urlencoded';
$data = $this->_postEncode($data);
}
}
$headers['Content-Length'] = strlen($data);
$rmethod = 'POST';
}elseif($method == 'GET'){
$data = ''; //no data allowed on GET requests
} if($this->user) {
$headers['Authorization'] = 'Basic '.base64_encode($this->user.':'.$this->pass);
}
if($this->proxy_user) {
$headers['Proxy-Authorization'] = 'Basic '.base64_encode($this->proxy_user.':'.$this->proxy_pass);
}
// already connected?
$connectionId = $this->_uniqueConnectionId($server,$port);
$this->_debug('connection pool', self::$connections);
$socket = null;
if (isset(self::$connections[$connectionId])) {
$this->_debug('reusing connection', $connectionId);
$socket = self::$connections[$connectionId];
}
if (is_null($socket) || feof($socket)) {
$this->_debug('opening connection', $connectionId);
// open socket
$socket = @fsockopen($server,$port,$errno, $errstr, $this->timeout);
if (!$socket){
$this->status = -100;
$this->error = "Could not connect to $server:$port\n$errstr ($errno)";
return false;
}
// try establish a CONNECT tunnel for SSL
if($this->_ssltunnel($socket, $request_url)){
// no keep alive for tunnels
$this->keep_alive = false;
// tunnel is authed already
if(isset($headers['Proxy-Authentication'])) unset($headers['Proxy-Authentication']);
}
// keep alive?
if ($this->keep_alive) {
self::$connections[$connectionId] = $socket;
} else {
unset(self::$connections[$connectionId]);
}
}
if ($this->keep_alive && !$this->proxy_host) {
// RFC 2068, section 19.7.1: A client MUST NOT send the Keep-Alive
// connection token to a proxy server. We still do keep the connection the
// proxy alive (well except for CONNECT tunnels)
$headers['Connection'] = 'Keep-Alive';
} else {
$headers['Connection'] = 'Close';
}
try {
//set non-blocking
stream_set_blocking($socket, false);
// build request
$request = "$method $request_url HTTP/".$this->http.HTTP_NL;
$request .= $this->_buildHeaders($headers);
$request .= $this->_getCookies();
$request .= HTTP_NL;
$request .= $data;
$this->_debug('request',$request);
$this->_sendData($socket, $request, 'request');
// read headers from socket
$r_headers = '';
do{
$r_line = $this->_readLine($socket, 'headers');
$r_headers .= $r_line;
}while($r_line != "\r\n" && $r_line != "\n");
$this->_debug('response headers',$r_headers);
// check if expected body size exceeds allowance
if($this->max_bodysize && preg_match('/\r?\nContent-Length:\s*(\d+)\r?\n/i',$r_headers,$match)){
if($match[1] > $this->max_bodysize){
if ($this->max_bodysize_abort)
throw new HTTPClientException('Reported content length exceeds allowed response size');
else
$this->error = 'Reported content length exceeds allowed response size';
}
}
// get Status
if (!preg_match('/^HTTP\/(\d\.\d)\s*(\d+).*?\n/', $r_headers, $m))
throw new HTTPClientException('Server returned bad answer');
$this->status = $m[2];
// handle headers and cookies
$this->resp_headers = $this->_parseHeaders($r_headers);
if(isset($this->resp_headers['set-cookie'])){
foreach ((array) $this->resp_headers['set-cookie'] as $cookie){
list($cookie) = explode(';',$cookie,2);
list($key,$val) = explode('=',$cookie,2);
$key = trim($key);
if($val == 'deleted'){
if(isset($this->cookies[$key])){
unset($this->cookies[$key]);
}
}elseif($key){
$this->cookies[$key] = $val;
}
}
}
$this->_debug('Object headers',$this->resp_headers);
// check server status code to follow redirect
if($this->status == 301 || $this->status == 302 ){
if (empty($this->resp_headers['location'])){
throw new HTTPClientException('Redirect but no Location Header found');
}elseif($this->redirect_count == $this->max_redirect){
throw new HTTPClientException('Maximum number of redirects exceeded');
}else{
// close the connection because we don't handle content retrieval here
// that's the easiest way to clean up the connection
fclose($socket);
unset(self::$connections[$connectionId]);
$this->redirect_count++;
$this->referer = $url;
// handle non-RFC-compliant relative redirects
if (!preg_match('/^http/i', $this->resp_headers['location'])){
if($this->resp_headers['location'][0] != '/'){
$this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port'].
dirname($uri['path']).'/'.$this->resp_headers['location'];
}else{
$this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port'].
$this->resp_headers['location'];
}
}
// perform redirected request, always via GET (required by RFC)
return $this->sendRequest($this->resp_headers['location'],array(),'GET');
}
}
// check if headers are as expected
if($this->header_regexp && !preg_match($this->header_regexp,$r_headers))
throw new HTTPClientException('The received headers did not match the given regexp');
//read body (with chunked encoding if needed)
$r_body = '';
if((isset($this->resp_headers['transfer-encoding']) && $this->resp_headers['transfer-encoding'] == 'chunked')
|| (isset($this->resp_headers['transfer-coding']) && $this->resp_headers['transfer-coding'] == 'chunked')){
$abort = false;
do {
$chunk_size = '';
while (preg_match('/^[a-zA-Z0-9]?$/',$byte=$this->_readData($socket,1,'chunk'))){
// read chunksize until \r
$chunk_size .= $byte;
if (strlen($chunk_size) > 128) // set an abritrary limit on the size of chunks
throw new HTTPClientException('Allowed response size exceeded');
}
$this->_readLine($socket, 'chunk'); // readtrailing \n
$chunk_size = hexdec($chunk_size);
if($this->max_bodysize && $chunk_size+strlen($r_body) > $this->max_bodysize){
if ($this->max_bodysize_abort)
throw new HTTPClientException('Allowed response size exceeded');
$this->error = 'Allowed response size exceeded';
$chunk_size = $this->max_bodysize - strlen($r_body);
$abort = true;
}
if ($chunk_size > 0) {
$r_body .= $this->_readData($socket, $chunk_size, 'chunk');
$byte = $this->_readData($socket, 2, 'chunk'); // read trailing \r\n
}
} while ($chunk_size && !$abort);
}elseif(isset($this->resp_headers['content-length']) && !isset($this->resp_headers['transfer-encoding'])){
/* RFC 2616
* If a message is received with both a Transfer-Encoding header field and a Content-Length
* header field, the latter MUST be ignored.
*/
// read up to the content-length or max_bodysize
// for keep alive we need to read the whole message to clean up the socket for the next read
if(!$this->keep_alive && $this->max_bodysize && $this->max_bodysize < $this->resp_headers['content-length']){
$length = $this->max_bodysize;
}else{
$length = $this->resp_headers['content-length'];
}
$r_body = $this->_readData($socket, $length, 'response (content-length limited)', true);
}else{
// read entire socket
$r_size = 0;
while (!feof($socket)) {
$r_body .= $this->_readData($socket, 4096, 'response (unlimited)', true);
}
}
// recheck body size, we might had to read the whole body, so we abort late or trim here
if($this->max_bodysize){
if(strlen($r_body) > $this->max_bodysize){
if ($this->max_bodysize_abort) {
throw new HTTPClientException('Allowed response size exceeded');
} else {
$this->error = 'Allowed response size exceeded';
}
}
}
} catch (HTTPClientException $err) {
$this->error = $err->getMessage();
if ($err->getCode())
$this->status = $err->getCode();
unset(self::$connections[$connectionId]);
fclose($socket); return false;
}
if (!$this->keep_alive ||
(isset($this->resp_headers['connection']) && $this->resp_headers['connection'] == 'Close')) {
// close socket
$status = socket_get_status($socket);
fclose($socket);
unset(self::$connections[$connectionId]);
}
// decode gzip if needed
if(isset($this->resp_headers['content-encoding']) &&
$this->resp_headers['content-encoding'] == 'gzip' &&
strlen($r_body) > 10 && substr($r_body,0,3)=="\x1f\x8b\x08"){
$this->resp_body = @gzinflate(substr($r_body, 10));
if($this->resp_body === false){
$this->error = 'Failed to decompress gzip encoded content';
$this->resp_body = $r_body;
}
}else{
$this->resp_body = $r_body;
}
$this->_debug('response body',$this->resp_body);
$this->redirect_count = 0;
return true;
}
/**
* Tries to establish a CONNECT tunnel via Proxy
*
* Protocol, Servername and Port will be stripped from the request URL when a successful CONNECT happened
*
* @param resource &$socket
* @param string &$requesturl
* @return bool true if a tunnel was established
*/
function _ssltunnel(&$socket, &$requesturl){
if(!$this->proxy_host) return false;
$requestinfo = parse_url($requesturl);
if($requestinfo['scheme'] != 'https') return false;
if(!$requestinfo['port']) $requestinfo['port'] = 443;
// build request
$request = "CONNECT {$requestinfo['host']}:{$requestinfo['port']} HTTP/1.0".HTTP_NL;
$request .= "Host: {$requestinfo['host']}".HTTP_NL;
if($this->proxy_user) {
'Proxy-Authorization Basic '.base64_encode($this->proxy_user.':'.$this->proxy_pass).HTTP_NL;
}
$request .= HTTP_NL;
$this->_debug('SSL Tunnel CONNECT',$request);
$this->_sendData($socket, $request, 'SSL Tunnel CONNECT');
// read headers from socket
$r_headers = '';
do{
$r_line = $this->_readLine($socket, 'headers');
$r_headers .= $r_line;
}while($r_line != "\r\n" && $r_line != "\n");
$this->_debug('SSL Tunnel Response',$r_headers);
if(preg_match('/^HTTP\/1\.0 200/i',$r_headers)){
if (stream_socket_enable_crypto($socket, true, STREAM_CRYPTO_METHOD_SSLv3_CLIENT)) {
$requesturl = $requestinfo['path'];
return true;
}
}
return false; }
/**
* Safely write data to a socket
*
* @param resource $socket An open socket handle
* @param string $data The data to write
* @param string $message Description of what is being read
* @throws HTTPClientException
* @author Tom N Harris <tnharris@whoopdedo.org>
*/
function _sendData($socket, $data, $message) {
// send request
$towrite = strlen($data);
$written = 0;
while($written < $towrite){
// check timeout
$time_used = $this->_time() - $this->start;
if($time_used > $this->timeout)
throw new HTTPClientException(sprintf('Timeout while sending %s (%.3fs)',$message, $time_used), -100);
if(feof($socket))
throw new HTTPClientException("Socket disconnected while writing $message");
// select parameters
$sel_r = null;
$sel_w = array($socket);
$sel_e = null;
// wait for stream ready or timeout (1sec)
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){
usleep(1000);
continue;
}
// write to stream
$nbytes = fwrite($socket, substr($data,$written,4096));
if($nbytes === false)
throw new HTTPClientException("Failed writing to socket while sending $message", -100);
$written += $nbytes;
}
}
/**
* Safely read data from a socket
*
* Reads up to a given number of bytes or throws an exception if the
* response times out or ends prematurely.
*
* @param resource $socket An open socket handle in non-blocking mode
* @param int $nbytes Number of bytes to read
* @param string $message Description of what is being read
* @param bool $ignore_eof End-of-file is not an error if this is set
* @throws HTTPClientException
* @return string
* @author Tom N Harris <tnharris@whoopdedo.org>
*/
function _readData($socket, $nbytes, $message, $ignore_eof = false) {
$r_data = '';
// Does not return immediately so timeout and eof can be checked
if ($nbytes < 0) $nbytes = 0;
$to_read = $nbytes;
do {
$time_used = $this->_time() - $this->start;
if ($time_used > $this->timeout)
throw new HTTPClientException(
sprintf('Timeout while reading %s after %d bytes (%.3fs)', $message,
strlen($r_data), $time_used), -100);
if(feof($socket)) {
if(!$ignore_eof)
throw new HTTPClientException("Premature End of File (socket) while reading $message");
break; }
if ($to_read > 0) {
// select parameters
$sel_r = array($socket);
$sel_w = null;
$sel_e = null;
// wait for stream ready or timeout (1sec)
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){
usleep(1000);
continue;
}
$bytes = fread($socket, $to_read);
if($bytes === false)
throw new HTTPClientException("Failed reading from socket while reading $message", -100);
$r_data .= $bytes;
$to_read -= strlen($bytes);
}
} while ($to_read > 0 && strlen($r_data) < $nbytes);
return $r_data;
}
/**
* Safely read a \n-terminated line from a socket
*
* Always returns a complete line, including the terminating \n.
*
* @param resource $socket An open socket handle in non-blocking mode
* @param string $message Description of what is being read
* @throws HTTPClientException
* @return string
* @author Tom N Harris <tnharris@whoopdedo.org>
*/
function _readLine($socket, $message) {
$r_data = '';
do {
$time_used = $this->_time() - $this->start;
if ($time_used > $this->timeout)
throw new HTTPClientException(
sprintf('Timeout while reading %s (%.3fs) >%s<', $message, $time_used, $r_data),
-100);
if(feof($socket))
throw new HTTPClientException("Premature End of File (socket) while reading $message");
// select parameters
$sel_r = array($socket);
$sel_w = null;
$sel_e = null;
// wait for stream ready or timeout (1sec)
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){
usleep(1000);
continue;
}
$r_data = fgets($socket, 1024);
} while (!preg_match('/\n$/',$r_data));
return $r_data;
}
/**
* print debug info
*
* Uses _debug_text or _debug_html depending on the SAPI name
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _debug($info,$var=null){
if(!$this->debug) return;
if(php_sapi_name() == 'cli'){ $this->_debug_text($info, $var);
}else{
$this->_debug_html($info, $var);
}
}
/**
* print debug info as HTML
*
* @param $info
* @param null $var
*/
function _debug_html($info, $var=null){
print '<b>'.$info.'</b> '.($this->_time() - $this->start).'s<br />';
if(!is_null($var)){
ob_start();
print_r($var);
$content = htmlspecialchars(ob_get_contents());
ob_end_clean();
print '<pre>'.$content.'</pre>';
}
}
/**
* prints debug info as plain text
*
* @param $info
* @param null $var
*/
function _debug_text($info, $var=null){
print '*'.$info.'* '.($this->_time() - $this->start)."s\n";
if(!is_null($var)) print_r($var);
print "\n-----------------------------------------------\n";
}
/**
* Return current timestamp in microsecond resolution
*/
static function _time(){
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
/**
* convert given header string to Header array
*
* All Keys are lowercased.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _parseHeaders($string){
$headers = array();
$lines = explode("\n",$string);
array_shift($lines); //skip first line (status)
foreach($lines as $line){
@list($key, $val) = explode(':',$line,2);
$key = trim($key);
$val = trim($val);
$key = strtolower($key);
if(!$key) continue;
if(isset($headers[$key])){
if(is_array($headers[$key])){
$headers[$key][] = $val;
}else{
$headers[$key] = array($headers[$key],$val);
}
}else{
$headers[$key] = $val;
}
} return $headers;
}
/**
* convert given header array to header string
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _buildHeaders($headers){
$string = '';
foreach($headers as $key => $value){
if(empty($value)) continue;
$string .= $key.': '.$value.HTTP_NL;
}
return $string;
}
/**
* get cookies as http header string
*
* @author Andreas Goetz <cpuidle@gmx.de>
*/
function _getCookies(){
$headers = '';
foreach ($this->cookies as $key => $val){
$headers .= "$key=$val; ";
}
$headers = substr($headers, 0, -2);
if ($headers) $headers = "Cookie: $headers".HTTP_NL;
return $headers;
}
/**
* Encode data for posting
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _postEncode($data){
$url = '';
foreach($data as $key => $val){
if (is_array($val)) {
foreach ($val as $k => $v) {
if($url) $url .= '&';
$url .= urlencode($key).'['.$k.']='.urlencode($v);
}
} else {
if($url) $url .= '&';
$url .= urlencode($key).'='.urlencode($val);
}
}
return $url;
}
/**
* Encode data for posting using multipart encoding
*
* @fixme use of urlencode might be wrong here
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _postMultipartEncode($data){
$boundary = '--'.$this->boundary;
$out = '';
foreach($data as $key => $val){
$out .= $boundary.HTTP_NL;
if(!is_array($val)){
$out .= 'Content-Disposition: form-data; name="'.urlencode($key).'"'.HTTP_NL;
$out .= HTTP_NL; // end of headers
$out .= $val;
$out .= HTTP_NL;
}else{ $out .= 'Content-Disposition: form-data; name="'.urlencode($key).'"';
if($val['filename']) $out .= '; filename="'.urlencode($val['filename']).'"';
$out .= HTTP_NL;
if($val['mimetype']) $out .= 'Content-Type: '.$val['mimetype'].HTTP_NL;
$out .= HTTP_NL; // end of headers
$out .= $val['body'];
$out .= HTTP_NL;
}
}
$out .= "$boundary--".HTTP_NL;
return $out;
}
/**
* Generates a unique identifier for a connection.
*
* @param string $server
* @param string $port
* @return string unique identifier
*/
function _uniqueConnectionId($server, $port) {
return "$server:$port";
}
}
//Setup VIM: ex: et ts=4 :