diff options
Diffstat (limited to 'library/oauth/http.php')
| -rw-r--r-- | library/oauth/http.php | 2092 |
1 files changed, 2092 insertions, 0 deletions
diff --git a/library/oauth/http.php b/library/oauth/http.php new file mode 100644 index 000000000..cb336fcfa --- /dev/null +++ b/library/oauth/http.php @@ -0,0 +1,2092 @@ +<?php +/* + * http.php + * + * @(#) $Header: /opt2/ena/metal/http/http.php,v 1.90 2013/02/20 11:45:28 mlemos Exp $ + * + */ + +define('HTTP_CLIENT_ERROR_UNSPECIFIED_ERROR', -1); +define('HTTP_CLIENT_ERROR_NO_ERROR', 0); +define('HTTP_CLIENT_ERROR_INVALID_SERVER_ADDRESS', 1); +define('HTTP_CLIENT_ERROR_CANNOT_CONNECT', 2); +define('HTTP_CLIENT_ERROR_COMMUNICATION_FAILURE', 3); +define('HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE', 4); +define('HTTP_CLIENT_ERROR_PROTOCOL_FAILURE', 5); +define('HTTP_CLIENT_ERROR_INVALID_PARAMETERS', 6); + +class http_class +{ + var $host_name=""; + var $host_port=0; + var $proxy_host_name=""; + var $proxy_host_port=80; + var $socks_host_name = ''; + var $socks_host_port = 1080; + var $socks_version = '5'; + + var $protocol="http"; + var $request_method="GET"; + var $user_agent='httpclient (http://www.phpclasses.org/httpclient $Revision: 1.90 $)'; + var $accept=''; + var $authentication_mechanism=""; + var $user; + var $password; + var $realm; + var $workstation; + var $proxy_authentication_mechanism=""; + var $proxy_user; + var $proxy_password; + var $proxy_realm; + var $proxy_workstation; + var $request_uri=""; + var $request=""; + var $request_headers=array(); + var $request_user; + var $request_password; + var $request_realm; + var $request_workstation; + var $proxy_request_user; + var $proxy_request_password; + var $proxy_request_realm; + var $proxy_request_workstation; + var $request_body=""; + var $request_arguments=array(); + var $protocol_version="1.1"; + var $timeout=0; + var $data_timeout=0; + var $debug=0; + var $log_debug=0; + var $debug_response_body=1; + var $html_debug=0; + var $support_cookies=1; + var $cookies=array(); + var $error=""; + var $error_code = HTTP_CLIENT_ERROR_NO_ERROR; + var $exclude_address=""; + var $follow_redirect=0; + var $redirection_limit=5; + var $response_status=""; + var $response_message=""; + var $file_buffer_length=8000; + var $force_multipart_form_post=0; + var $prefer_curl = 0; + var $keep_alive = 1; + var $sasl_authenticate = 1; + + /* private variables - DO NOT ACCESS */ + + var $state="Disconnected"; + var $use_curl=0; + var $connection=0; + var $content_length=0; + var $response=""; + var $read_response=0; + var $read_length=0; + var $request_host=""; + var $next_token=""; + var $redirection_level=0; + var $chunked=0; + var $remaining_chunk=0; + var $last_chunk_read=0; + var $months=array( + "Jan"=>"01", + "Feb"=>"02", + "Mar"=>"03", + "Apr"=>"04", + "May"=>"05", + "Jun"=>"06", + "Jul"=>"07", + "Aug"=>"08", + "Sep"=>"09", + "Oct"=>"10", + "Nov"=>"11", + "Dec"=>"12"); + var $session=''; + var $connection_close=0; + var $force_close = 0; + var $connected_host = ''; + var $connected_port = -1; + var $connected_ssl = 0; + + /* Private methods - DO NOT CALL */ + + Function Tokenize($string,$separator="") + { + if(!strcmp($separator,"")) + { + $separator=$string; + $string=$this->next_token; + } + for($character=0;$character<strlen($separator);$character++) + { + if(GetType($position=strpos($string,$separator[$character]))=="integer") + $found=(IsSet($found) ? min($found,$position) : $position); + } + if(IsSet($found)) + { + $this->next_token=substr($string,$found+1); + return(substr($string,0,$found)); + } + else + { + $this->next_token=""; + return($string); + } + } + + Function CookieEncode($value, $name) + { + return($name ? str_replace("=", "%25", $value) : str_replace(";", "%3B", $value)); + } + + Function SetError($error, $error_code = HTTP_CLIENT_ERROR_UNSPECIFIED_ERROR) + { + $this->error_code = $error_code; + return($this->error=$error); + } + + Function SetPHPError($error, &$php_error_message, $error_code = HTTP_CLIENT_ERROR_UNSPECIFIED_ERROR) + { + if(IsSet($php_error_message) + && strlen($php_error_message)) + $error.=": ".$php_error_message; + return($this->SetError($error, $error_code)); + } + + Function SetDataAccessError($error,$check_connection=0) + { + $this->error=$error; + $this->error_code = HTTP_CLIENT_ERROR_COMMUNICATION_FAILURE; + if(!$this->use_curl + && function_exists("socket_get_status")) + { + $status=socket_get_status($this->connection); + if($status["timed_out"]) + $this->error.=": data access time out"; + elseif($status["eof"]) + { + if($check_connection) + $this->error=""; + else + $this->error.=": the server disconnected"; + } + } + } + + Function OutputDebug($message) + { + if($this->log_debug) + error_log($message); + else + { + $message.="\n"; + if($this->html_debug) + $message=str_replace("\n","<br />\n",HtmlEntities($message)); + echo $message; + flush(); + } + } + + Function GetLine() + { + for($line="";;) + { + if($this->use_curl) + { + $eol=strpos($this->response,"\n",$this->read_response); + $data=($eol ? substr($this->response,$this->read_response,$eol+1-$this->read_response) : ""); + $this->read_response+=strlen($data); + } + else + { + if(feof($this->connection)) + { + $this->SetDataAccessError("reached the end of data while reading from the HTTP server connection"); + return(0); + } + $data=fgets($this->connection,100); + } + if(GetType($data)!="string" + || strlen($data)==0) + { + $this->SetDataAccessError("it was not possible to read line from the HTTP server"); + return(0); + } + $line.=$data; + $length=strlen($line); + if($length + && !strcmp(substr($line,$length-1,1),"\n")) + { + $length-=(($length>=2 && !strcmp(substr($line,$length-2,1),"\r")) ? 2 : 1); + $line=substr($line,0,$length); + if($this->debug) + $this->OutputDebug("S $line"); + return($line); + } + } + } + + Function PutLine($line) + { + if($this->debug) + $this->OutputDebug("C $line"); + if(!fputs($this->connection,$line."\r\n")) + { + $this->SetDataAccessError("it was not possible to send a line to the HTTP server"); + return(0); + } + return(1); + } + + Function PutData($data) + { + if(strlen($data)) + { + if($this->debug) + $this->OutputDebug('C '.$data); + if(!fputs($this->connection,$data)) + { + $this->SetDataAccessError("it was not possible to send data to the HTTP server"); + return(0); + } + } + return(1); + } + + Function FlushData() + { + if(!fflush($this->connection)) + { + $this->SetDataAccessError("it was not possible to send data to the HTTP server"); + return(0); + } + return(1); + } + + Function ReadChunkSize() + { + if($this->remaining_chunk==0) + { + $debug=$this->debug; + if(!$this->debug_response_body) + $this->debug=0; + $line=$this->GetLine(); + $this->debug=$debug; + if(GetType($line)!="string") + return($this->SetError("could not read chunk start: ".$this->error, $this->error_code)); + $this->remaining_chunk=hexdec($line); + if($this->remaining_chunk == 0) + { + if(!$this->debug_response_body) + $this->debug=0; + $line=$this->GetLine(); + $this->debug=$debug; + if(GetType($line)!="string") + return($this->SetError("could not read chunk end: ".$this->error, $this->error_code)); + } + } + return(""); + } + + Function ReadBytes($length) + { + if($this->use_curl) + { + $bytes=substr($this->response,$this->read_response,min($length,strlen($this->response)-$this->read_response)); + $this->read_response+=strlen($bytes); + if($this->debug + && $this->debug_response_body + && strlen($bytes)) + $this->OutputDebug("S ".$bytes); + } + else + { + if($this->chunked) + { + for($bytes="",$remaining=$length;$remaining;) + { + if(strlen($this->ReadChunkSize())) + return(""); + if($this->remaining_chunk==0) + { + $this->last_chunk_read=1; + break; + } + $ask=min($this->remaining_chunk,$remaining); + $chunk=@fread($this->connection,$ask); + $read=strlen($chunk); + if($read==0) + { + $this->SetDataAccessError("it was not possible to read data chunk from the HTTP server"); + return(""); + } + if($this->debug + && $this->debug_response_body) + $this->OutputDebug("S ".$chunk); + $bytes.=$chunk; + $this->remaining_chunk-=$read; + $remaining-=$read; + if($this->remaining_chunk==0) + { + if(feof($this->connection)) + return($this->SetError("reached the end of data while reading the end of data chunk mark from the HTTP server", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + $data=@fread($this->connection,2); + if(strcmp($data,"\r\n")) + { + $this->SetDataAccessError("it was not possible to read end of data chunk from the HTTP server"); + return(""); + } + } + } + } + else + { + $bytes=@fread($this->connection,$length); + if(strlen($bytes)) + { + if($this->debug + && $this->debug_response_body) + $this->OutputDebug("S ".$bytes); + } + else + $this->SetDataAccessError("it was not possible to read data from the HTTP server", $this->connection_close); + } + } + return($bytes); + } + + Function EndOfInput() + { + if($this->use_curl) + return($this->read_response>=strlen($this->response)); + if($this->chunked) + return($this->last_chunk_read); + if($this->content_length_set) + return($this->content_length <= $this->read_length); + return(feof($this->connection)); + } + + Function Resolve($domain, &$ip, $server_type) + { + if(preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/',$domain)) + $ip=$domain; + else + { + if($this->debug) + $this->OutputDebug('Resolving '.$server_type.' server domain "'.$domain.'"...'); + if(!strcmp($ip=@gethostbyname($domain),$domain)) + $ip=""; + } + if(strlen($ip)==0 + || (strlen($this->exclude_address) + && !strcmp(@gethostbyname($this->exclude_address),$ip))) + return($this->SetError("could not resolve the host domain \"".$domain."\"", HTTP_CLIENT_ERROR_INVALID_SERVER_ADDRESS)); + return(''); + } + + Function Connect($host_name, $host_port, $ssl, $server_type = 'HTTP') + { + $domain=$host_name; + $port = $host_port; + if(strlen($error = $this->Resolve($domain, $ip, $server_type))) + return($error); + if(strlen($this->socks_host_name)) + { + switch($this->socks_version) + { + case '4': + $version = 4; + break; + case '5': + $version = 5; + break; + default: + return('it was not specified a supported SOCKS protocol version'); + break; + } + $host_ip = $ip; + $port = $this->socks_host_port; + $host_server_type = $server_type; + $server_type = 'SOCKS'; + if(strlen($error = $this->Resolve($this->socks_host_name, $ip, $server_type))) + return($error); + } + if($this->debug) + $this->OutputDebug('Connecting to '.$server_type.' server IP '.$ip.' port '.$port.'...'); + if($ssl) + $ip="ssl://".$host_name; + if(($this->connection=($this->timeout ? @fsockopen($ip, $port, $errno, $error, $this->timeout) : @fsockopen($ip, $port, $errno)))==0) + { + $error_code = HTTP_CLIENT_ERROR_CANNOT_CONNECT; + switch($errno) + { + case -3: + return($this->SetError("socket could not be created", $error_code)); + case -4: + return($this->SetError("dns lookup on hostname \"".$host_name."\" failed", $error_code)); + case -5: + return($this->SetError("connection refused or timed out", $error_code)); + case -6: + return($this->SetError("fdopen() call failed", $error_code)); + case -7: + return($this->SetError("setvbuf() call failed", $error_code)); + default: + return($this->SetPHPError($errno." could not connect to the host \"".$host_name."\"",$php_errormsg, $error_code)); + } + } + else + { + if($this->data_timeout + && function_exists("socket_set_timeout")) + socket_set_timeout($this->connection,$this->data_timeout,0); + if(strlen($this->socks_host_name)) + { + if($this->debug) + $this->OutputDebug('Connected to the SOCKS server '.$this->socks_host_name); + $send_error = 'it was not possible to send data to the SOCKS server'; + $receive_error = 'it was not possible to receive data from the SOCKS server'; + switch($version) + { + case 4: + $command = 1; + $user = ''; + if(!fputs($this->connection, chr($version).chr($command).pack('nN', $host_port, ip2long($host_ip)).$user.Chr(0))) + $error = $this->SetDataAccessError($send_error); + else + { + $response = fgets($this->connection, 9); + if(strlen($response) != 8) + $error = $this->SetDataAccessError($receive_error); + else + { + $socks_errors = array( + "\x5a"=>'', + "\x5b"=>'request rejected', + "\x5c"=>'request failed because client is not running identd (or not reachable from the server)', + "\x5d"=>'request failed because client\'s identd could not confirm the user ID string in the request', + ); + $error_code = $response[1]; + $error = (IsSet($socks_errors[$error_code]) ? $socks_errors[$error_code] : 'unknown'); + if(strlen($error)) + $error = 'SOCKS error: '.$error; + } + } + break; + case 5: + if($this->debug) + $this->OutputDebug('Negotiating the authentication method ...'); + $methods = 1; + $method = 0; + if(!fputs($this->connection, chr($version).chr($methods).chr($method))) + $error = $this->SetDataAccessError($send_error); + else + { + $response = fgets($this->connection, 3); + if(strlen($response) != 2) + $error = $this->SetDataAccessError($receive_error); + elseif(Ord($response[1]) != $method) + $error = 'the SOCKS server requires an authentication method that is not yet supported'; + else + { + if($this->debug) + $this->OutputDebug('Connecting to '.$host_server_type.' server IP '.$host_ip.' port '.$host_port.'...'); + $command = 1; + $address_type = 1; + if(!fputs($this->connection, chr($version).chr($command)."\x00".chr($address_type).pack('Nn', ip2long($host_ip), $host_port))) + $error = $this->SetDataAccessError($send_error); + else + { + $response = fgets($this->connection, 11); + if(strlen($response) != 10) + $error = $this->SetDataAccessError($receive_error); + else + { + $socks_errors = array( + "\x00"=>'', + "\x01"=>'general SOCKS server failure', + "\x02"=>'connection not allowed by ruleset', + "\x03"=>'Network unreachable', + "\x04"=>'Host unreachable', + "\x05"=>'Connection refused', + "\x06"=>'TTL expired', + "\x07"=>'Command not supported', + "\x08"=>'Address type not supported' + ); + $error_code = $response[1]; + $error = (IsSet($socks_errors[$error_code]) ? $socks_errors[$error_code] : 'unknown'); + if(strlen($error)) + $error = 'SOCKS error: '.$error; + } + } + } + } + break; + default: + $error = 'support for SOCKS protocol version '.$this->socks_version.' is not yet implemented'; + break; + } + if(strlen($error)) + { + fclose($this->connection); + return($error); + } + } + if($this->debug) + $this->OutputDebug("Connected to $host_name"); + if(strlen($this->proxy_host_name) + && !strcmp(strtolower($this->protocol), 'https')) + { + if(function_exists('stream_socket_enable_crypto') + && in_array('ssl', stream_get_transports())) + $this->state = "ConnectedToProxy"; + else + { + $this->OutputDebug("It is not possible to start SSL after connecting to the proxy server. If the proxy refuses to forward the SSL request, you may need to upgrade to PHP 5.1 or later with OpenSSL support enabled."); + $this->state="Connected"; + } + } + else + $this->state="Connected"; + return(""); + } + } + + Function Disconnect() + { + if($this->debug) + $this->OutputDebug("Disconnected from ".$this->connected_host); + if($this->use_curl) + { + curl_close($this->connection); + $this->response=""; + } + else + fclose($this->connection); + $this->state="Disconnected"; + return(""); + } + + /* Public methods */ + + Function GetRequestArguments($url, &$arguments) + { + $this->error = ''; + $this->error_code = HTTP_CLIENT_ERROR_NO_ERROR; + $arguments=array(); + $url = str_replace(' ', '%20', $url); + $parameters=@parse_url($url); + if(!$parameters) + return($this->SetError("it was not specified a valid URL", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if(!IsSet($parameters["scheme"])) + return($this->SetError("it was not specified the protocol type argument", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + switch(strtolower($parameters["scheme"])) + { + case "http": + case "https": + $arguments["Protocol"]=$parameters["scheme"]; + break; + default: + return($parameters["scheme"]." connection scheme is not yet supported"); + } + if(!IsSet($parameters["host"])) + return($this->SetError("it was not specified the connection host argument", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $arguments["HostName"]=$parameters["host"]; + $arguments["Headers"]=array("Host"=>$parameters["host"].(IsSet($parameters["port"]) ? ":".$parameters["port"] : "")); + if(IsSet($parameters["user"])) + { + $arguments["AuthUser"]=UrlDecode($parameters["user"]); + if(!IsSet($parameters["pass"])) + $arguments["AuthPassword"]=""; + } + if(IsSet($parameters["pass"])) + { + if(!IsSet($parameters["user"])) + $arguments["AuthUser"]=""; + $arguments["AuthPassword"]=UrlDecode($parameters["pass"]); + } + if(IsSet($parameters["port"])) + { + if(strcmp($parameters["port"],strval(intval($parameters["port"])))) + return($this->SetError("it was not specified a valid connection host argument", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $arguments["HostPort"]=intval($parameters["port"]); + } + else + $arguments["HostPort"]=0; + $arguments["RequestURI"]=(IsSet($parameters["path"]) ? $parameters["path"] : "/").(IsSet($parameters["query"]) ? "?".$parameters["query"] : ""); + if(strlen($this->user_agent)) + $arguments["Headers"]["User-Agent"]=$this->user_agent; + if(strlen($this->accept)) + $arguments["Headers"]["Accept"]=$this->accept; + return(""); + } + + Function Open($arguments) + { + if(strlen($this->error)) + return($this->error); + $error_code = HTTP_CLIENT_ERROR_UNSPECIFIED_ERROR; + if(IsSet($arguments["HostName"])) + $this->host_name=$arguments["HostName"]; + if(IsSet($arguments["HostPort"])) + $this->host_port=$arguments["HostPort"]; + if(IsSet($arguments["ProxyHostName"])) + $this->proxy_host_name=$arguments["ProxyHostName"]; + if(IsSet($arguments["ProxyHostPort"])) + $this->proxy_host_port=$arguments["ProxyHostPort"]; + if(IsSet($arguments["SOCKSHostName"])) + $this->socks_host_name=$arguments["SOCKSHostName"]; + if(IsSet($arguments["SOCKSHostPort"])) + $this->socks_host_port=$arguments["SOCKSHostPort"]; + if(IsSet($arguments["SOCKSVersion"])) + $this->socks_version=$arguments["SOCKSVersion"]; + if(IsSet($arguments["Protocol"])) + $this->protocol=$arguments["Protocol"]; + switch(strtolower($this->protocol)) + { + case "http": + $default_port=80; + break; + case "https": + $default_port=443; + break; + default: + return($this->SetError("it was not specified a valid connection protocol", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + if(strlen($this->proxy_host_name)==0) + { + if(strlen($this->host_name)==0) + return($this->SetError("it was not specified a valid hostname", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $host_name=$this->host_name; + $host_port=($this->host_port ? $this->host_port : $default_port); + $server_type = 'HTTP'; + } + else + { + $host_name=$this->proxy_host_name; + $host_port=$this->proxy_host_port; + $server_type = 'HTTP proxy'; + } + $ssl=(strtolower($this->protocol)=="https" && strlen($this->proxy_host_name)==0); + if($ssl + && strlen($this->socks_host_name)) + return($this->SetError('establishing SSL connections via a SOCKS server is not yet supported', HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $this->use_curl=($ssl && $this->prefer_curl && function_exists("curl_init")); + switch($this->state) + { + case 'Connected': + if(!strcmp($host_name, $this->connected_host) + && intval($host_port) == $this->connected_port + && intval($ssl) == $this->connected_ssl) + { + if($this->debug) + $this->OutputDebug("Reusing connection to ".$this->connected_host); + return(''); + } + if(strlen($error = $this->Disconnect())) + return($error); + case "Disconnected": + break; + default: + return("1 already connected"); + } + if($this->debug) + $this->OutputDebug("Connecting to ".$this->host_name); + if($this->use_curl) + { + $error=(($this->connection=curl_init($this->protocol."://".$this->host_name.($host_port==$default_port ? "" : ":".strval($host_port))."/")) ? "" : "Could not initialize a CURL session"); + if(strlen($error)==0) + { + if(IsSet($arguments["SSLCertificateFile"])) + curl_setopt($this->connection,CURLOPT_SSLCERT,$arguments["SSLCertificateFile"]); + if(IsSet($arguments["SSLCertificatePassword"])) + curl_setopt($this->connection,CURLOPT_SSLCERTPASSWD,$arguments["SSLCertificatePassword"]); + if(IsSet($arguments["SSLKeyFile"])) + curl_setopt($this->connection,CURLOPT_SSLKEY,$arguments["SSLKeyFile"]); + if(IsSet($arguments["SSLKeyPassword"])) + curl_setopt($this->connection,CURLOPT_SSLKEYPASSWD,$arguments["SSLKeyPassword"]); + } + $this->state="Connected"; + } + else + { + $error=""; + if(strlen($this->proxy_host_name) + && (IsSet($arguments["SSLCertificateFile"]) + || IsSet($arguments["SSLCertificateFile"]))) + $error="establishing SSL connections using certificates or private keys via non-SSL proxies is not supported"; + else + { + if($ssl) + { + if(IsSet($arguments["SSLCertificateFile"])) + $error="establishing SSL connections using certificates is only supported when the cURL extension is enabled"; + elseif(IsSet($arguments["SSLKeyFile"])) + $error="establishing SSL connections using a private key is only supported when the cURL extension is enabled"; + else + { + $version=explode(".",function_exists("phpversion") ? phpversion() : "3.0.7"); + $php_version=intval($version[0])*1000000+intval($version[1])*1000+intval($version[2]); + if($php_version<4003000) + $error="establishing SSL connections requires at least PHP version 4.3.0 or having the cURL extension enabled"; + elseif(!function_exists("extension_loaded") + || !extension_loaded("openssl")) + $error="establishing SSL connections requires the OpenSSL extension enabled"; + } + } + if(strlen($error)==0) + { + $error=$this->Connect($host_name, $host_port, $ssl, $server_type); + $error_code = $this->error_code; + } + } + } + if(strlen($error)) + return($this->SetError($error, $error_code)); + $this->session=md5(uniqid("")); + $this->connected_host = $host_name; + $this->connected_port = intval($host_port); + $this->connected_ssl = intval($ssl); + return(""); + } + + Function Close($force = 0) + { + if($this->state=="Disconnected") + return("1 already disconnected"); + if(!$this->force_close + && $this->keep_alive + && !$force + && $this->state == 'ResponseReceived') + { + if($this->debug) + $this->OutputDebug('Keeping the connection alive to '.$this->connected_host); + $this->state = 'Connected'; + return(''); + } + return($this->Disconnect()); + } + + Function PickCookies(&$cookies,$secure) + { + if(IsSet($this->cookies[$secure])) + { + $now=gmdate("Y-m-d H-i-s"); + for($domain=0,Reset($this->cookies[$secure]);$domain<count($this->cookies[$secure]);Next($this->cookies[$secure]),$domain++) + { + $domain_pattern=Key($this->cookies[$secure]); + $match=strlen($this->request_host)-strlen($domain_pattern); + if($match>=0 + && !strcmp($domain_pattern,substr($this->request_host,$match)) + && ($match==0 + || $domain_pattern[0]=="." + || $this->request_host[$match-1]==".")) + { + for(Reset($this->cookies[$secure][$domain_pattern]),$path_part=0;$path_part<count($this->cookies[$secure][$domain_pattern]);Next($this->cookies[$secure][$domain_pattern]),$path_part++) + { + $path=Key($this->cookies[$secure][$domain_pattern]); + if(strlen($this->request_uri)>=strlen($path) + && substr($this->request_uri,0,strlen($path))==$path) + { + for(Reset($this->cookies[$secure][$domain_pattern][$path]),$cookie=0;$cookie<count($this->cookies[$secure][$domain_pattern][$path]);Next($this->cookies[$secure][$domain_pattern][$path]),$cookie++) + { + $cookie_name=Key($this->cookies[$secure][$domain_pattern][$path]); + $expires=$this->cookies[$secure][$domain_pattern][$path][$cookie_name]["expires"]; + if($expires=="" + || strcmp($now,$expires)<0) + $cookies[$cookie_name]=$this->cookies[$secure][$domain_pattern][$path][$cookie_name]; + } + } + } + } + } + } + } + + Function GetFileDefinition($file, &$definition) + { + $name=""; + if(IsSet($file["FileName"])) + $name=basename($file["FileName"]); + if(IsSet($file["Name"])) + $name=$file["Name"]; + if(strlen($name)==0) + return("it was not specified the file part name"); + if(IsSet($file["Content-Type"])) + { + $content_type=$file["Content-Type"]; + $type=$this->Tokenize(strtolower($content_type),"/"); + $sub_type=$this->Tokenize(""); + switch($type) + { + case "text": + case "image": + case "audio": + case "video": + case "application": + case "message": + break; + case "automatic": + switch($sub_type) + { + case "name": + switch(GetType($dot=strrpos($name,"."))=="integer" ? strtolower(substr($name,$dot)) : "") + { + case ".xls": + $content_type="application/excel"; + break; + case ".hqx": + $content_type="application/macbinhex40"; + break; + case ".doc": + case ".dot": + case ".wrd": + $content_type="application/msword"; + break; + case ".pdf": + $content_type="application/pdf"; + break; + case ".pgp": + $content_type="application/pgp"; + break; + case ".ps": + case ".eps": + case ".ai": + $content_type="application/postscript"; + break; + case ".ppt": + $content_type="application/powerpoint"; + break; + case ".rtf": + $content_type="application/rtf"; + break; + case ".tgz": + case ".gtar": + $content_type="application/x-gtar"; + break; + case ".gz": + $content_type="application/x-gzip"; + break; + case ".php": + case ".php3": + $content_type="application/x-httpd-php"; + break; + case ".js": + $content_type="application/x-javascript"; + break; + case ".ppd": + case ".psd": + $content_type="application/x-photoshop"; + break; + case ".swf": + case ".swc": + case ".rf": + $content_type="application/x-shockwave-flash"; + break; + case ".tar": + $content_type="application/x-tar"; + break; + case ".zip": + $content_type="application/zip"; + break; + case ".mid": + case ".midi": + case ".kar": + $content_type="audio/midi"; + break; + case ".mp2": + case ".mp3": + case ".mpga": + $content_type="audio/mpeg"; + break; + case ".ra": + $content_type="audio/x-realaudio"; + break; + case ".wav": + $content_type="audio/wav"; + break; + case ".bmp": + $content_type="image/bitmap"; + break; + case ".gif": + $content_type="image/gif"; + break; + case ".iff": + $content_type="image/iff"; + break; + case ".jb2": + $content_type="image/jb2"; + break; + case ".jpg": + case ".jpe": + case ".jpeg": + $content_type="image/jpeg"; + break; + case ".jpx": + $content_type="image/jpx"; + break; + case ".png": + $content_type="image/png"; + break; + case ".tif": + case ".tiff": + $content_type="image/tiff"; + break; + case ".wbmp": + $content_type="image/vnd.wap.wbmp"; + break; + case ".xbm": + $content_type="image/xbm"; + break; + case ".css": + $content_type="text/css"; + break; + case ".txt": + $content_type="text/plain"; + break; + case ".htm": + case ".html": + $content_type="text/html"; + break; + case ".xml": + $content_type="text/xml"; + break; + case ".mpg": + case ".mpe": + case ".mpeg": + $content_type="video/mpeg"; + break; + case ".qt": + case ".mov": + $content_type="video/quicktime"; + break; + case ".avi": + $content_type="video/x-ms-video"; + break; + case ".eml": + $content_type="message/rfc822"; + break; + default: + $content_type="application/octet-stream"; + break; + } + break; + default: + return($content_type." is not a supported automatic content type detection method"); + } + break; + default: + return($content_type." is not a supported file content type"); + } + } + else + $content_type="application/octet-stream"; + $definition=array( + "Content-Type"=>$content_type, + "NAME"=>$name + ); + if(IsSet($file["FileName"])) + { + if(GetType($length=@filesize($file["FileName"]))!="integer") + { + $error="it was not possible to determine the length of the file ".$file["FileName"]; + if(IsSet($php_errormsg) + && strlen($php_errormsg)) + $error.=": ".$php_errormsg; + if(!file_exists($file["FileName"])) + $error="it was not possible to access the file ".$file["FileName"]; + return($error); + } + $definition["FILENAME"]=$file["FileName"]; + $definition["Content-Length"]=$length; + } + elseif(IsSet($file["Data"])) + $definition["Content-Length"]=strlen($definition["DATA"]=$file["Data"]); + else + return("it was not specified a valid file name"); + return(""); + } + + Function ConnectFromProxy($arguments, &$headers) + { + if(!$this->PutLine('CONNECT '.$this->host_name.':'.($this->host_port ? $this->host_port : 443).' HTTP/1.0') + || (strlen($this->user_agent) + && !$this->PutLine('User-Agent: '.$this->user_agent)) + || (strlen($this->accept) + && !$this->PutLine('Accept: '.$this->accept)) + || (IsSet($arguments['Headers']['Proxy-Authorization']) + && !$this->PutLine('Proxy-Authorization: '.$arguments['Headers']['Proxy-Authorization'])) + || !$this->PutLine('')) + { + $this->Disconnect(); + return($this->error); + } + $this->state = "ConnectSent"; + if(strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($error); + $proxy_authorization=""; + while(!strcmp($this->response_status, "100")) + { + $this->state="ConnectSent"; + if(strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($error); + } + switch($this->response_status) + { + case "200": + if(!@stream_socket_enable_crypto($this->connection, 1, STREAM_CRYPTO_METHOD_SSLv23_CLIENT)) + { + $this->SetPHPError('it was not possible to start a SSL encrypted connection via this proxy', $php_errormsg, HTTP_CLIENT_ERROR_COMMUNICATION_FAILURE); + $this->Disconnect(); + return($this->error); + } + $this->state = "Connected"; + break; + case "407": + if(strlen($error=$this->Authenticate($headers, -1, $proxy_authorization, $this->proxy_request_user, $this->proxy_request_password, $this->proxy_request_realm, $this->proxy_request_workstation))) + return($error); + break; + default: + return($this->SetError("unable to send request via proxy", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + } + return(""); + } + + Function SendRequest($arguments) + { + if(strlen($this->error)) + return($this->error); + if(IsSet($arguments["ProxyUser"])) + $this->proxy_request_user=$arguments["ProxyUser"]; + elseif(IsSet($this->proxy_user)) + $this->proxy_request_user=$this->proxy_user; + if(IsSet($arguments["ProxyPassword"])) + $this->proxy_request_password=$arguments["ProxyPassword"]; + elseif(IsSet($this->proxy_password)) + $this->proxy_request_password=$this->proxy_password; + if(IsSet($arguments["ProxyRealm"])) + $this->proxy_request_realm=$arguments["ProxyRealm"]; + elseif(IsSet($this->proxy_realm)) + $this->proxy_request_realm=$this->proxy_realm; + if(IsSet($arguments["ProxyWorkstation"])) + $this->proxy_request_workstation=$arguments["ProxyWorkstation"]; + elseif(IsSet($this->proxy_workstation)) + $this->proxy_request_workstation=$this->proxy_workstation; + switch($this->state) + { + case "Disconnected": + return($this->SetError("connection was not yet established", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "Connected": + $connect = 0; + break; + case "ConnectedToProxy": + if(strlen($error = $this->ConnectFromProxy($arguments, $headers))) + return($error); + $connect = 1; + break; + default: + return($this->SetError("can not send request in the current connection state", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + if(IsSet($arguments["RequestMethod"])) + $this->request_method=$arguments["RequestMethod"]; + if(IsSet($arguments["User-Agent"])) + $this->user_agent=$arguments["User-Agent"]; + if(!IsSet($arguments["Headers"]["User-Agent"]) + && strlen($this->user_agent)) + $arguments["Headers"]["User-Agent"]=$this->user_agent; + if(IsSet($arguments["KeepAlive"])) + $this->keep_alive=intval($arguments["KeepAlive"]); + if(!IsSet($arguments["Headers"]["Connection"]) + && $this->keep_alive) + $arguments["Headers"]["Connection"]='Keep-Alive'; + if(IsSet($arguments["Accept"])) + $this->user_agent=$arguments["Accept"]; + if(!IsSet($arguments["Headers"]["Accept"]) + && strlen($this->accept)) + $arguments["Headers"]["Accept"]=$this->accept; + if(strlen($this->request_method)==0) + return($this->SetError("it was not specified a valid request method", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if(IsSet($arguments["RequestURI"])) + $this->request_uri=$arguments["RequestURI"]; + if(strlen($this->request_uri)==0 + || substr($this->request_uri,0,1)!="/") + return($this->SetError("it was not specified a valid request URI", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $this->request_arguments=$arguments; + $this->request_headers=(IsSet($arguments["Headers"]) ? $arguments["Headers"] : array()); + $body_length=0; + $this->request_body=""; + $get_body=1; + if($this->request_method=="POST" + || $this->request_method=="PUT") + { + if(IsSet($arguments['StreamRequest'])) + { + $get_body = 0; + $this->request_headers["Transfer-Encoding"]="chunked"; + } + elseif(IsSet($arguments["PostFiles"]) + || ($this->force_multipart_form_post + && IsSet($arguments["PostValues"]))) + { + $boundary="--".md5(uniqid(time())); + $this->request_headers["Content-Type"]="multipart/form-data; boundary=".$boundary.(IsSet($arguments["CharSet"]) ? "; charset=".$arguments["CharSet"] : ""); + $post_parts=array(); + if(IsSet($arguments["PostValues"])) + { + $values=$arguments["PostValues"]; + if(GetType($values)!="array") + return($this->SetError("it was not specified a valid POST method values array", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + for(Reset($values),$value=0;$value<count($values);Next($values),$value++) + { + $input=Key($values); + $headers="--".$boundary."\r\nContent-Disposition: form-data; name=\"".$input."\"\r\n\r\n"; + $data=$values[$input]; + $post_parts[]=array("HEADERS"=>$headers,"DATA"=>$data); + $body_length+=strlen($headers)+strlen($data)+strlen("\r\n"); + } + } + $body_length+=strlen("--".$boundary."--\r\n"); + $files=(IsSet($arguments["PostFiles"]) ? $arguments["PostFiles"] : array()); + Reset($files); + $end=(GetType($input=Key($files))!="string"); + for(;!$end;) + { + if(strlen($error=$this->GetFileDefinition($files[$input],$definition))) + return("3 ".$error); + $headers="--".$boundary."\r\nContent-Disposition: form-data; name=\"".$input."\"; filename=\"".$definition["NAME"]."\"\r\nContent-Type: ".$definition["Content-Type"]."\r\n\r\n"; + $part=count($post_parts); + $post_parts[$part]=array("HEADERS"=>$headers); + if(IsSet($definition["FILENAME"])) + { + $post_parts[$part]["FILENAME"]=$definition["FILENAME"]; + $data=""; + } + else + $data=$definition["DATA"]; + $post_parts[$part]["DATA"]=$data; + $body_length+=strlen($headers)+$definition["Content-Length"]+strlen("\r\n"); + Next($files); + $end=(GetType($input=Key($files))!="string"); + } + $get_body=0; + } + elseif(IsSet($arguments["PostValues"])) + { + $values=$arguments["PostValues"]; + if(GetType($values)!="array") + return($this->SetError("it was not specified a valid POST method values array", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + for(Reset($values),$value=0;$value<count($values);Next($values),$value++) + { + $k=Key($values); + if(GetType($values[$k])=="array") + { + for($v = 0; $v < count($values[$k]); $v++) + { + if($value+$v>0) + $this->request_body.="&"; + $this->request_body.=UrlEncode($k)."=".UrlEncode($values[$k][$v]); + } + } + else + { + if($value>0) + $this->request_body.="&"; + $this->request_body.=UrlEncode($k)."=".UrlEncode($values[$k]); + } + } + $this->request_headers["Content-Type"]="application/x-www-form-urlencoded".(IsSet($arguments["CharSet"]) ? "; charset=".$arguments["CharSet"] : ""); + $get_body=0; + } + } + if($get_body + && (IsSet($arguments["Body"]) + || IsSet($arguments["BodyStream"]))) + { + if(IsSet($arguments["Body"])) + $this->request_body=$arguments["Body"]; + else + { + $stream=$arguments["BodyStream"]; + $this->request_body=""; + for($part=0; $part<count($stream); $part++) + { + if(IsSet($stream[$part]["Data"])) + $this->request_body.=$stream[$part]["Data"]; + elseif(IsSet($stream[$part]["File"])) + { + if(!($file=@fopen($stream[$part]["File"],"rb"))) + return($this->SetPHPError("could not open upload file ".$stream[$part]["File"], $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE)); + while(!feof($file)) + { + if(GetType($block=@fread($file,$this->file_buffer_length))!="string") + { + $error=$this->SetPHPError("could not read body stream file ".$stream[$part]["File"], $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE); + fclose($file); + return($error); + } + $this->request_body.=$block; + } + fclose($file); + } + else + return("5 it was not specified a valid file or data body stream element at position ".$part); + } + } + if(!IsSet($this->request_headers["Content-Type"])) + $this->request_headers["Content-Type"]="application/octet-stream".(IsSet($arguments["CharSet"]) ? "; charset=".$arguments["CharSet"] : ""); + } + if(IsSet($arguments["AuthUser"])) + $this->request_user=$arguments["AuthUser"]; + elseif(IsSet($this->user)) + $this->request_user=$this->user; + if(IsSet($arguments["AuthPassword"])) + $this->request_password=$arguments["AuthPassword"]; + elseif(IsSet($this->password)) + $this->request_password=$this->password; + if(IsSet($arguments["AuthRealm"])) + $this->request_realm=$arguments["AuthRealm"]; + elseif(IsSet($this->realm)) + $this->request_realm=$this->realm; + if(IsSet($arguments["AuthWorkstation"])) + $this->request_workstation=$arguments["AuthWorkstation"]; + elseif(IsSet($this->workstation)) + $this->request_workstation=$this->workstation; + if(strlen($this->proxy_host_name)==0 + || $connect) + $request_uri=$this->request_uri; + else + { + switch(strtolower($this->protocol)) + { + case "http": + $default_port=80; + break; + case "https": + $default_port=443; + break; + } + $request_uri=strtolower($this->protocol)."://".$this->host_name.(($this->host_port==0 || $this->host_port==$default_port) ? "" : ":".$this->host_port).$this->request_uri; + } + if($this->use_curl) + { + $version=(GetType($v=curl_version())=="array" ? (IsSet($v["version"]) ? $v["version"] : "0.0.0") : (preg_match("/^libcurl\\/([0-9]+\\.[0-9]+\\.[0-9]+)/",$v,$m) ? $m[1] : "0.0.0")); + $curl_version=100000*intval($this->Tokenize($version,"."))+1000*intval($this->Tokenize("."))+intval($this->Tokenize("")); + $protocol_version=($curl_version<713002 ? "1.0" : $this->protocol_version); + } + else + $protocol_version=$this->protocol_version; + $this->request=$this->request_method." ".$request_uri." HTTP/".$protocol_version; + if($body_length + || ($body_length=strlen($this->request_body)) + || !strcmp($this->request_method, 'POST')) + $this->request_headers["Content-Length"]=$body_length; + for($headers=array(),$host_set=0,Reset($this->request_headers),$header=0;$header<count($this->request_headers);Next($this->request_headers),$header++) + { + $header_name=Key($this->request_headers); + $header_value=$this->request_headers[$header_name]; + if(GetType($header_value)=="array") + { + for(Reset($header_value),$value=0;$value<count($header_value);Next($header_value),$value++) + $headers[]=$header_name.": ".$header_value[Key($header_value)]; + } + else + $headers[]=$header_name.": ".$header_value; + if(strtolower(Key($this->request_headers))=="host") + { + $this->request_host=strtolower($header_value); + $host_set=1; + } + } + if(!$host_set) + { + $headers[]="Host: ".$this->host_name; + $this->request_host=strtolower($this->host_name); + } + if(count($this->cookies)) + { + $cookies=array(); + $this->PickCookies($cookies,0); + if(strtolower($this->protocol)=="https") + $this->PickCookies($cookies,1); + if(count($cookies)) + { + $h=count($headers); + $headers[$h]="Cookie:"; + for(Reset($cookies),$cookie=0;$cookie<count($cookies);Next($cookies),$cookie++) + { + $cookie_name=Key($cookies); + $headers[$h].=" ".$cookie_name."=".$cookies[$cookie_name]["value"].";"; + } + } + } + $next_state = "RequestSent"; + if($this->use_curl) + { + if(IsSet($arguments['StreamRequest'])) + return($this->SetError("Streaming request data is not supported when using Curl", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if($body_length + && strlen($this->request_body)==0) + { + for($request_body="",$success=1,$part=0;$part<count($post_parts);$part++) + { + $request_body.=$post_parts[$part]["HEADERS"].$post_parts[$part]["DATA"]; + if(IsSet($post_parts[$part]["FILENAME"])) + { + if(!($file=@fopen($post_parts[$part]["FILENAME"],"rb"))) + { + $this->SetPHPError("could not open upload file ".$post_parts[$part]["FILENAME"], $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE); + $success=0; + break; + } + while(!feof($file)) + { + if(GetType($block=@fread($file,$this->file_buffer_length))!="string") + { + $this->SetPHPError("could not read upload file", $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE); + $success=0; + break; + } + $request_body.=$block; + } + fclose($file); + if(!$success) + break; + } + $request_body.="\r\n"; + } + $request_body.="--".$boundary."--\r\n"; + } + else + $request_body=$this->request_body; + curl_setopt($this->connection,CURLOPT_HEADER,1); + curl_setopt($this->connection,CURLOPT_RETURNTRANSFER,1); + if($this->timeout) + curl_setopt($this->connection,CURLOPT_TIMEOUT,$this->timeout); + curl_setopt($this->connection,CURLOPT_SSL_VERIFYPEER,0); + curl_setopt($this->connection,CURLOPT_SSL_VERIFYHOST,0); + $request=$this->request."\r\n".implode("\r\n",$headers)."\r\n\r\n".$request_body; + curl_setopt($this->connection,CURLOPT_CUSTOMREQUEST,$request); + if($this->debug) + $this->OutputDebug("C ".$request); + if(!($success=(strlen($this->response=curl_exec($this->connection))!=0))) + { + $error=curl_error($this->connection); + $this->SetError("Could not execute the request".(strlen($error) ? ": ".$error : ""), HTTP_CLIENT_ERROR_PROTOCOL_FAILURE); + } + } + else + { + if(($success=$this->PutLine($this->request))) + { + for($header=0;$header<count($headers);$header++) + { + if(!$success=$this->PutLine($headers[$header])) + break; + } + if($success + && ($success=$this->PutLine(""))) + { + if(IsSet($arguments['StreamRequest'])) + $next_state = "SendingRequestBody"; + elseif($body_length) + { + if(strlen($this->request_body)) + $success=$this->PutData($this->request_body); + else + { + for($part=0;$part<count($post_parts);$part++) + { + if(!($success=$this->PutData($post_parts[$part]["HEADERS"])) + || !($success=$this->PutData($post_parts[$part]["DATA"]))) + break; + if(IsSet($post_parts[$part]["FILENAME"])) + { + if(!($file=@fopen($post_parts[$part]["FILENAME"],"rb"))) + { + $this->SetPHPError("could not open upload file ".$post_parts[$part]["FILENAME"], $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE); + $success=0; + break; + } + while(!feof($file)) + { + if(GetType($block=@fread($file,$this->file_buffer_length))!="string") + { + $this->SetPHPError("could not read upload file", $php_errormsg, HTTP_CLIENT_ERROR_CANNOT_ACCESS_LOCAL_FILE); + $success=0; + break; + } + if(!($success=$this->PutData($block))) + break; + } + fclose($file); + if(!$success) + break; + } + if(!($success=$this->PutLine(""))) + break; + } + if($success) + $success=$this->PutLine("--".$boundary."--"); + } + if($success) + $sucess=$this->FlushData(); + } + } + } + } + if(!$success) + return($this->SetError("could not send the HTTP request: ".$this->error, $this->error_code)); + $this->state=$next_state; + return(""); + } + + Function SetCookie($name, $value, $expires="" , $path="/" , $domain="" , $secure=0, $verbatim=0) + { + if(strlen($this->error)) + return($this->error); + if(strlen($name)==0) + return($this->SetError("it was not specified a valid cookie name", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if(strlen($path)==0 + || strcmp($path[0],"/")) + return($this->SetError($path." is not a valid path for setting cookie ".$name, HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if($domain=="" + || !strpos($domain,".",$domain[0]=="." ? 1 : 0)) + return($this->SetError($domain." is not a valid domain for setting cookie ".$name, HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $domain=strtolower($domain); + if(!strcmp($domain[0],".")) + $domain=substr($domain,1); + if(!$verbatim) + { + $name=$this->CookieEncode($name,1); + $value=$this->CookieEncode($value,0); + } + $secure=intval($secure); + $this->cookies[$secure][$domain][$path][$name]=array( + "name"=>$name, + "value"=>$value, + "domain"=>$domain, + "path"=>$path, + "expires"=>$expires, + "secure"=>$secure + ); + return(""); + } + + Function SendRequestBody($data, $end_of_data) + { + if(strlen($this->error)) + return($this->error); + switch($this->state) + { + case "Disconnected": + return($this->SetError("connection was not yet established", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "Connected": + case "ConnectedToProxy": + return($this->SetError("request was not sent", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "SendingRequestBody": + break; + case "RequestSent": + return($this->SetError("request body was already sent", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + default: + return($this->SetError("can not send the request body in the current connection state", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + $length = strlen($data); + if($length) + { + $size = dechex($length)."\r\n"; + if(!$this->PutData($size) + || !$this->PutData($data)) + return($this->error); + } + if($end_of_data) + { + $size = "0\r\n"; + if(!$this->PutData($size)) + return($this->error); + $this->state = "RequestSent"; + } + return(""); + } + + Function ReadReplyHeadersResponse(&$headers) + { + $headers=array(); + if(strlen($this->error)) + return($this->error); + switch($this->state) + { + case "Disconnected": + return($this->SetError("connection was not yet established", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "Connected": + return($this->SetError("request was not sent", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "ConnectedToProxy": + return($this->SetError("connection from the remote server from the proxy was not yet established", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "SendingRequestBody": + return($this->SetError("request body data was not completely sent", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "ConnectSent": + $connect = 1; + break; + case "RequestSent": + $connect = 0; + break; + default: + return($this->SetError("can not get request headers in the current connection state", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + $this->content_length=$this->read_length=$this->read_response=$this->remaining_chunk=0; + $this->content_length_set=$this->chunked=$this->last_chunk_read=$chunked=0; + $this->force_close = $this->connection_close=0; + for($this->response_status="";;) + { + $line=$this->GetLine(); + if(GetType($line)!="string") + return($this->SetError("could not read request reply: ".$this->error, $this->error_code)); + if(strlen($this->response_status)==0) + { + if(!preg_match($match="/^http\\/[0-9]+\\.[0-9]+[ \t]+([0-9]+)[ \t]*(.*)\$/i",$line,$matches)) + return($this->SetError("it was received an unexpected HTTP response status", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + $this->response_status=$matches[1]; + $this->response_message=$matches[2]; + } + if($line=="") + { + if(strlen($this->response_status)==0) + return($this->SetError("it was not received HTTP response status", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + $this->state=($connect ? "GotConnectHeaders" : "GotReplyHeaders"); + break; + } + $header_name=strtolower($this->Tokenize($line,":")); + $header_value=Trim(Chop($this->Tokenize("\r\n"))); + if(IsSet($headers[$header_name])) + { + if(GetType($headers[$header_name])=="string") + $headers[$header_name]=array($headers[$header_name]); + $headers[$header_name][]=$header_value; + } + else + $headers[$header_name]=$header_value; + if(!$connect) + { + switch($header_name) + { + case "content-length": + $this->content_length=intval($headers[$header_name]); + $this->content_length_set=1; + break; + case "transfer-encoding": + $encoding=$this->Tokenize($header_value,"; \t"); + if(!$this->use_curl + && !strcmp($encoding,"chunked")) + $chunked=1; + break; + case "set-cookie": + if($this->support_cookies) + { + if(GetType($headers[$header_name])=="array") + $cookie_headers=$headers[$header_name]; + else + $cookie_headers=array($headers[$header_name]); + for($cookie=0;$cookie<count($cookie_headers);$cookie++) + { + $cookie_name=trim($this->Tokenize($cookie_headers[$cookie],"=")); + $cookie_value=$this->Tokenize(";"); + $domain=$this->request_host; + $path="/"; + $expires=""; + $secure=0; + while(($name = strtolower(trim(UrlDecode($this->Tokenize("=")))))!="") + { + $value=UrlDecode($this->Tokenize(";")); + switch($name) + { + case "domain": + $domain=$value; + break; + case "path": + $path=$value; + break; + case "expires": + if(preg_match("/^((Mon|Monday|Tue|Tuesday|Wed|Wednesday|Thu|Thursday|Fri|Friday|Sat|Saturday|Sun|Sunday), )?([0-9]{2})\\-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\\-([0-9]{2,4}) ([0-9]{2})\\:([0-9]{2})\\:([0-9]{2}) GMT\$/",$value,$matches)) + { + $year=intval($matches[5]); + if($year<1900) + $year+=($year<70 ? 2000 : 1900); + $expires="$year-".$this->months[$matches[4]]."-".$matches[3]." ".$matches[6].":".$matches[7].":".$matches[8]; + } + break; + case "secure": + $secure=1; + break; + } + } + if(strlen($this->SetCookie($cookie_name, $cookie_value, $expires, $path , $domain, $secure, 1))) + $this->error=""; + } + } + break; + case "connection": + $this->force_close = $this->connection_close=!strcmp(strtolower($header_value),"close"); + break; + } + } + } + $this->chunked=$chunked; + if($this->content_length_set) + $this->connection_close=0; + return(""); + } + + Function Redirect(&$headers) + { + if($this->follow_redirect) + { + if(!IsSet($headers["location"]) + || (GetType($headers["location"])!="array" + && strlen($location=$headers["location"])==0) + || (GetType($headers["location"])=="array" + && strlen($location=$headers["location"][0])==0)) + return($this->SetError("it was received a redirect without location URL", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + if(strcmp($location[0],"/")) + { + if(!($location_arguments=@parse_url($location))) + return($this->SetError("the server did not return a valid redirection location URL", HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + if(!IsSet($location_arguments["scheme"])) + $location=((GetType($end=strrpos($this->request_uri,"/"))=="integer" && $end>1) ? substr($this->request_uri,0,$end) : "")."/".$location; + } + if(!strcmp($location[0],"/")) + $location=$this->protocol."://".$this->host_name.($this->host_port ? ":".$this->host_port : "").$location; + $error=$this->GetRequestArguments($location,$arguments); + if(strlen($error)) + return($this->SetError("could not process redirect url: ".$error, HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + $arguments["RequestMethod"]="GET"; + if(strlen($error=$this->Close())==0 + && strlen($error=$this->Open($arguments))==0 + && strlen($error=$this->SendRequest($arguments))==0) + { + $this->redirection_level++; + if($this->redirection_level>$this->redirection_limit) + { + $error="it was exceeded the limit of request redirections"; + $this->error_code = HTTP_CLIENT_ERROR_PROTOCOL_FAILURE; + } + else + $error=$this->ReadReplyHeaders($headers); + $this->redirection_level--; + } + if(strlen($error)) + return($this->SetError($error, $this->error_code)); + } + return(""); + } + + Function Authenticate(&$headers, $proxy, &$proxy_authorization, &$user, &$password, &$realm, &$workstation) + { + if($proxy) + { + $authenticate_header="proxy-authenticate"; + $authorization_header="Proxy-Authorization"; + $authenticate_status="407"; + $authentication_mechanism=$this->proxy_authentication_mechanism; + } + else + { + $authenticate_header="www-authenticate"; + $authorization_header="Authorization"; + $authenticate_status="401"; + $authentication_mechanism=$this->authentication_mechanism; + } + if(IsSet($headers[$authenticate_header]) + && $this->sasl_authenticate) + { + if(function_exists("class_exists") + && !class_exists("sasl_client_class")) + return($this->SetError("the SASL client class needs to be loaded to be able to authenticate".($proxy ? " with the proxy server" : "")." and access this site", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + if(GetType($headers[$authenticate_header])=="array") + $authenticate=$headers[$authenticate_header]; + else + $authenticate=array($headers[$authenticate_header]); + for($response="", $mechanisms=array(),$m=0;$m<count($authenticate);$m++) + { + $mechanism=$this->Tokenize($authenticate[$m]," "); + $response=$this->Tokenize(""); + if(strlen($authentication_mechanism)) + { + if(!strcmp($authentication_mechanism,$mechanism)) + { + $mechanisms[]=$mechanism; + break; + } + } + else + $mechanisms[]=$mechanism; + } + $sasl=new sasl_client_class; + if(IsSet($user)) + $sasl->SetCredential("user",$user); + if(IsSet($password)) + $sasl->SetCredential("password",$password); + if(IsSet($realm)) + $sasl->SetCredential("realm",$realm); + if(IsSet($workstation)) + $sasl->SetCredential("workstation",$workstation); + $sasl->SetCredential("uri",$this->request_uri); + $sasl->SetCredential("method",$this->request_method); + $sasl->SetCredential("session",$this->session); + do + { + $status=$sasl->Start($mechanisms,$message,$interactions); + } + while($status==SASL_INTERACT); + switch($status) + { + case SASL_CONTINUE: + break; + case SASL_NOMECH: + return($this->SetError(($proxy ? "proxy " : "")."authentication error: ".(strlen($authentication_mechanism) ? "authentication mechanism ".$authentication_mechanism." may not be used: " : "").$sasl->error, HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + default: + return($this->SetError("Could not start the SASL ".($proxy ? "proxy " : "")."authentication client: ".$sasl->error, HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + if($proxy >= 0) + { + for(;;) + { + if(strlen($error=$this->ReadReplyBody($body,$this->file_buffer_length))) + return($error); + if(strlen($body)==0) + break; + } + } + $authorization_value=$sasl->mechanism.(IsSet($message) ? " ".($sasl->encode_response ? base64_encode($message) : $message) : ""); + $request_arguments=$this->request_arguments; + $arguments=$request_arguments; + $arguments["Headers"][$authorization_header]=$authorization_value; + if(!$proxy + && strlen($proxy_authorization)) + $arguments["Headers"]["Proxy-Authorization"]=$proxy_authorization; + if(strlen($error=$this->Close()) + || strlen($error=$this->Open($arguments))) + return($this->SetError($error, $this->error_code)); + $authenticated=0; + if(IsSet($message)) + { + if($proxy < 0) + { + if(strlen($error=$this->ConnectFromProxy($arguments, $headers))) + return($this->SetError($error, $this->error_code)); + } + else + { + if(strlen($error=$this->SendRequest($arguments)) + || strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($this->SetError($error, $this->error_code)); + } + if(!IsSet($headers[$authenticate_header])) + $authenticate=array(); + elseif(GetType($headers[$authenticate_header])=="array") + $authenticate=$headers[$authenticate_header]; + else + $authenticate=array($headers[$authenticate_header]); + for($mechanism=0;$mechanism<count($authenticate);$mechanism++) + { + if(!strcmp($this->Tokenize($authenticate[$mechanism]," "),$sasl->mechanism)) + { + $response=$this->Tokenize(""); + break; + } + } + switch($this->response_status) + { + case $authenticate_status: + break; + case "301": + case "302": + case "303": + case "307": + if($proxy >= 0) + return($this->Redirect($headers)); + default: + if(intval($this->response_status/100)==2) + { + if($proxy) + $proxy_authorization=$authorization_value; + $authenticated=1; + break; + } + if($proxy + && !strcmp($this->response_status,"401")) + { + $proxy_authorization=$authorization_value; + $authenticated=1; + break; + } + return($this->SetError(($proxy ? "proxy " : "")."authentication error: ".$this->response_status." ".$this->response_message, HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + } + } + for(;!$authenticated;) + { + do + { + $status=$sasl->Step($response,$message,$interactions); + } + while($status==SASL_INTERACT); + switch($status) + { + case SASL_CONTINUE: + $authorization_value=$sasl->mechanism.(IsSet($message) ? " ".($sasl->encode_response ? base64_encode($message) : $message) : ""); + $arguments=$request_arguments; + $arguments["Headers"][$authorization_header]=$authorization_value; + if(!$proxy + && strlen($proxy_authorization)) + $arguments["Headers"]["Proxy-Authorization"]=$proxy_authorization; + if($proxy < 0) + { + if(strlen($error=$this->ConnectFromProxy($arguments, $headers))) + return($this->SetError($error, $this->error_code)); + } + else + { + if(strlen($error=$this->SendRequest($arguments)) + || strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($this->SetError($error, $this->error_code)); + } + switch($this->response_status) + { + case $authenticate_status: + if(GetType($headers[$authenticate_header])=="array") + $authenticate=$headers[$authenticate_header]; + else + $authenticate=array($headers[$authenticate_header]); + for($response="",$mechanism=0;$mechanism<count($authenticate);$mechanism++) + { + if(!strcmp($this->Tokenize($authenticate[$mechanism]," "),$sasl->mechanism)) + { + $response=$this->Tokenize(""); + break; + } + } + if($proxy >= 0) + { + for(;;) + { + if(strlen($error=$this->ReadReplyBody($body,$this->file_buffer_length))) + return($error); + if(strlen($body)==0) + break; + } + } + $this->state="Connected"; + break; + case "301": + case "302": + case "303": + case "307": + if($proxy >= 0) + return($this->Redirect($headers)); + default: + if(intval($this->response_status/100)==2) + { + if($proxy) + $proxy_authorization=$authorization_value; + $authenticated=1; + break; + } + if($proxy + && !strcmp($this->response_status,"401")) + { + $proxy_authorization=$authorization_value; + $authenticated=1; + break; + } + return($this->SetError(($proxy ? "proxy " : "")."authentication error: ".$this->response_status." ".$this->response_message)); + } + break; + default: + return($this->SetError("Could not process the SASL ".($proxy ? "proxy " : "")."authentication step: ".$sasl->error, HTTP_CLIENT_ERROR_PROTOCOL_FAILURE)); + } + } + } + return(""); + } + + Function ReadReplyHeaders(&$headers) + { + if(strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($error); + $proxy_authorization=""; + while(!strcmp($this->response_status, "100")) + { + $this->state="RequestSent"; + if(strlen($error=$this->ReadReplyHeadersResponse($headers))) + return($error); + } + switch($this->response_status) + { + case "301": + case "302": + case "303": + case "307": + if(strlen($error=$this->Redirect($headers))) + return($error); + break; + case "407": + if(strlen($error=$this->Authenticate($headers, 1, $proxy_authorization, $this->proxy_request_user, $this->proxy_request_password, $this->proxy_request_realm, $this->proxy_request_workstation))) + return($error); + if(strcmp($this->response_status,"401")) + return(""); + case "401": + return($this->Authenticate($headers, 0, $proxy_authorization, $this->request_user, $this->request_password, $this->request_realm, $this->request_workstation)); + } + return(""); + } + + Function ReadReplyBody(&$body,$length) + { + $body=""; + if(strlen($this->error)) + return($this->error); + switch($this->state) + { + case "Disconnected": + return($this->SetError("connection was not yet established", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "Connected": + case "ConnectedToProxy": + return($this->SetError("request was not sent", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + case "RequestSent": + if(($error=$this->ReadReplyHeaders($headers))!="") + return($error); + break; + case "GotReplyHeaders": + break; + case 'ResponseReceived': + $body = ''; + return(''); + default: + return($this->SetError("can not get request headers in the current connection state", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + } + if($this->content_length_set) + $length=min($this->content_length-$this->read_length,$length); + $body = ''; + if($length>0) + { + if(!$this->EndOfInput() + && ($body=$this->ReadBytes($length))=="") + { + if(strlen($this->error)) + return($this->SetError("could not get the request reply body: ".$this->error, $this->error_code)); + } + $this->read_length+=strlen($body); + if($this->EndOfInput()) + $this->state = 'ResponseReceived'; + } + return(""); + } + + Function ReadWholeReplyBody(&$body) + { + $body = ''; + for(;;) + { + if(strlen($error = $this->ReadReplyBody($block, $this->file_buffer_length))) + return($error); + if(strlen($block) == 0) + return(''); + $body .= $block; + } + } + + Function SaveCookies(&$cookies, $domain='', $secure_only=0, $persistent_only=0) + { + $now=gmdate("Y-m-d H-i-s"); + $cookies=array(); + for($secure_cookies=0,Reset($this->cookies);$secure_cookies<count($this->cookies);Next($this->cookies),$secure_cookies++) + { + $secure=Key($this->cookies); + if(!$secure_only + || $secure) + { + for($cookie_domain=0,Reset($this->cookies[$secure]);$cookie_domain<count($this->cookies[$secure]);Next($this->cookies[$secure]),$cookie_domain++) + { + $domain_pattern=Key($this->cookies[$secure]); + $match=strlen($domain)-strlen($domain_pattern); + if(strlen($domain)==0 + || ($match>=0 + && !strcmp($domain_pattern,substr($domain,$match)) + && ($match==0 + || $domain_pattern[0]=="." + || $domain[$match-1]=="."))) + { + for(Reset($this->cookies[$secure][$domain_pattern]),$path_part=0;$path_part<count($this->cookies[$secure][$domain_pattern]);Next($this->cookies[$secure][$domain_pattern]),$path_part++) + { + $path=Key($this->cookies[$secure][$domain_pattern]); + for(Reset($this->cookies[$secure][$domain_pattern][$path]),$cookie=0;$cookie<count($this->cookies[$secure][$domain_pattern][$path]);Next($this->cookies[$secure][$domain_pattern][$path]),$cookie++) + { + $cookie_name=Key($this->cookies[$secure][$domain_pattern][$path]); + $expires=$this->cookies[$secure][$domain_pattern][$path][$cookie_name]["expires"]; + if((!$persistent_only + && strlen($expires)==0) + || (strlen($expires) + && strcmp($now,$expires)<0)) + $cookies[$secure][$domain_pattern][$path][$cookie_name]=$this->cookies[$secure][$domain_pattern][$path][$cookie_name]; + } + } + } + } + } + } + } + + Function SavePersistentCookies(&$cookies, $domain='', $secure_only=0) + { + $this->SaveCookies($cookies, $domain, $secure_only, 1); + } + + Function GetPersistentCookies(&$cookies, $domain='', $secure_only=0) + { + $this->SavePersistentCookies($cookies, $domain, $secure_only); + } + + Function RestoreCookies($cookies, $clear=1) + { + $new_cookies=($clear ? array() : $this->cookies); + for($secure_cookies=0, Reset($cookies); $secure_cookies<count($cookies); Next($cookies), $secure_cookies++) + { + $secure=Key($cookies); + if(GetType($secure)!="integer") + return($this->SetError("invalid cookie secure value type (".serialize($secure).")", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + for($cookie_domain=0,Reset($cookies[$secure]);$cookie_domain<count($cookies[$secure]);Next($cookies[$secure]),$cookie_domain++) + { + $domain_pattern=Key($cookies[$secure]); + if(GetType($domain_pattern)!="string") + return($this->SetError("invalid cookie domain value type (".serialize($domain_pattern).")", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + for(Reset($cookies[$secure][$domain_pattern]),$path_part=0;$path_part<count($cookies[$secure][$domain_pattern]);Next($cookies[$secure][$domain_pattern]),$path_part++) + { + $path=Key($cookies[$secure][$domain_pattern]); + if(GetType($path)!="string" + || strcmp(substr($path, 0, 1), "/")) + return($this->SetError("invalid cookie path value type (".serialize($path).")", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + for(Reset($cookies[$secure][$domain_pattern][$path]),$cookie=0;$cookie<count($cookies[$secure][$domain_pattern][$path]);Next($cookies[$secure][$domain_pattern][$path]),$cookie++) + { + $cookie_name=Key($cookies[$secure][$domain_pattern][$path]); + $expires=$cookies[$secure][$domain_pattern][$path][$cookie_name]["expires"]; + $value=$cookies[$secure][$domain_pattern][$path][$cookie_name]["value"]; + if(GetType($expires)!="string" + || (strlen($expires) + && !preg_match("/^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}\$/", $expires))) + return($this->SetError("invalid cookie expiry value type (".serialize($expires).")", HTTP_CLIENT_ERROR_INVALID_PARAMETERS)); + $new_cookies[$secure][$domain_pattern][$path][$cookie_name]=array( + "name"=>$cookie_name, + "value"=>$value, + "domain"=>$domain_pattern, + "path"=>$path, + "expires"=>$expires, + "secure"=>$secure + ); + } + } + } + } + $this->cookies=$new_cookies; + return(""); + } +}; + +?>
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