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<?php
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/*
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* smtp.php
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*
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* @(#) $Header$
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*
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*/
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class smtp_class
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{
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var $user="";
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var $realm="";
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var $password="";
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var $workstation="";
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var $authentication_mechanism="";
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var $host_name="";
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var $host_port=25;
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var $ssl=0;
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var $tls=0;
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var $localhost="";
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var $timeout=0;
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var $data_timeout=0;
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var $direct_delivery=0;
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var $error="";
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var $debug=0;
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var $html_debug=0;
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var $esmtp=1;
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var $esmtp_host="";
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var $esmtp_extensions=array();
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var $maximum_piped_recipients=100;
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var $exclude_address="";
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var $getmxrr="GetMXRR";
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var $pop3_auth_host="";
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var $pop3_auth_port=110;
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/* private variables - DO NOT ACCESS */
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var $state="Disconnected";
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var $connection=0;
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var $pending_recipients=0;
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var $next_token="";
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var $direct_sender="";
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var $connected_domain="";
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var $result_code;
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var $disconnected_error=0;
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/* Private methods - DO NOT CALL */
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Function Tokenize($string,$separator="")
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{
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if(!strcmp($separator,""))
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{
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$separator=$string;
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$string=$this->next_token;
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}
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for($character=0;$character<strlen($separator);$character++)
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{
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if(GetType($position=strpos($string,$separator[$character]))=="integer")
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$found=(IsSet($found) ? min($found,$position) : $position);
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}
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if(IsSet($found))
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{
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$this->next_token=substr($string,$found+1);
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return(substr($string,0,$found));
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}
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else
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{
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$this->next_token="";
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return($string);
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}
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}
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Function OutputDebug($message)
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{
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$message.="\n";
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if($this->html_debug)
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$message=str_replace("\n","<br />\n",HtmlEntities($message));
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echo $message;
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flush();
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}
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Function SetDataAccessError($error)
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{
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$this->error=$error;
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if(function_exists("socket_get_status"))
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{
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$status=socket_get_status($this->connection);
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if($status["timed_out"])
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$this->error.=gettext(": data access time out");
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elseif($status["eof"])
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{
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$this->error.=gettext(": the server disconnected");
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$this->disconnected_error=1;
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}
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}
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}
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Function GetLine()
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{
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for($line="";;)
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{
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if(feof($this->connection))
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{
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$this->error=gettext("reached the end of data while reading from the SMTP server connection");
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return("");
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}
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if(GetType($data=@fgets($this->connection,100))!="string"
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|| strlen($data)==0)
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{
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$this->SetDataAccessError(gettext("it was not possible to read line from the SMTP server"));
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return("");
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}
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$line.=$data;
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$length=strlen($line);
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if($length>=2
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&& substr($line,$length-2,2)=="\r\n")
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{
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$line=substr($line,0,$length-2);
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if($this->debug)
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$this->OutputDebug("S $line");
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return($line);
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}
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}
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}
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Function PutLine($line)
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{
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if($this->debug)
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$this->OutputDebug("C $line");
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if(!@fputs($this->connection,"$line\r\n"))
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{
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$this->SetDataAccessError(gettext("it was not possible to send a line to the SMTP server"));
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return(0);
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}
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return(1);
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}
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Function PutData(&$data)
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{
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140
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if(strlen($data))
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{
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if($this->debug)
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$this->OutputDebug("C $data");
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if(!@fputs($this->connection,$data))
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{
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$this->SetDataAccessError(gettext("it was not possible to send data to the SMTP server"));
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return(0);
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}
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}
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150
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return(1);
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}
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152
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153
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Function VerifyResultLines($code,&$responses)
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154
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{
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$responses=array();
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Unset($this->result_code);
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while(strlen($line=$this->GetLine($this->connection)))
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{
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159
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if(IsSet($this->result_code))
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{
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161
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if(strcmp($this->Tokenize($line," -"),$this->result_code))
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{
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$this->error=$line;
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return(0);
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}
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}
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else
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{
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$this->result_code=$this->Tokenize($line," -");
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if(GetType($code)=="array")
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{
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for($codes=0;$codes<count($code) && strcmp($this->result_code,$code[$codes]);$codes++);
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if($codes>=count($code))
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{
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$this->error=$line;
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return(0);
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}
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}
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else
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{
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if(strcmp($this->result_code,$code))
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{
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$this->error=$line;
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return(0);
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}
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}
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}
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$responses[]=$this->Tokenize("");
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if(!strcmp($this->result_code,$this->Tokenize($line," ")))
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return(1);
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}
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192
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return(-1);
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193
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}
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194
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195
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Function FlushRecipients()
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196
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{
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197
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if($this->pending_sender)
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198
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{
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199
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if($this->VerifyResultLines("250",$responses)<=0)
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return(0);
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201
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$this->pending_sender=0;
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}
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203
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for(;$this->pending_recipients;$this->pending_recipients--)
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{
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if($this->VerifyResultLines(array("250","251"),$responses)<=0)
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return(0);
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}
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208
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return(1);
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209
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}
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210
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211
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Function ConnectToHost($domain, $port, $resolve_message)
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212
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{
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213
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if($this->ssl || $this->tls)
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214
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{
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215
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$version=explode(".",function_exists("phpversion") ? phpversion() : "3.0.7");
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216
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$php_version=intval($version[0])*1000000+intval($version[1])*1000+intval($version[2]);
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217
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if($php_version<4003000)
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return(gettext("establishing SSL connections requires at least PHP version 4.3.0"));
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219
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if(!function_exists("extension_loaded")
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|| !extension_loaded("openssl"))
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return(gettext("establishing SSL connections requires the OpenSSL extension enabled"));
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222
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}
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223
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if(preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/',$domain))
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224
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$ip=$domain;
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225
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else
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226
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{
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227
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if($this->debug)
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228
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$this->OutputDebug($resolve_message);
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229
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if(!strcmp($ip=@gethostbyname($domain),$domain))
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230
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return(sprintf(gettext("could not resolve host \"%s\""), $domain));
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231
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}
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232
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if(strlen($this->exclude_address)
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233
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&& !strcmp(@gethostbyname($this->exclude_address),$ip))
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234
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return(sprintf(gettext("domain \"%s\" resolved to an address excluded to be valid"), $domain));
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235
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if($this->debug)
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236
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$this->OutputDebug(sprintf(gettext('Connecting to host address "%1$s" port %2$s...'), $ip, $port));
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237
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if(($this->connection=($this->timeout ? @fsockopen(($this->ssl ? "ssl://" : "").$ip,$port,$errno,$error,$this->timeout) : @fsockopen(($this->ssl ? "ssl://" : "").$ip,$port))))
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238
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return("");
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239
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$error=($this->timeout ? strval($error) : "??");
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240
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switch($error)
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241
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{
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242
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case "-3":
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243
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return(gettext("-3 socket could not be created"));
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244
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case "-4":
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245
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return(sprintf(gettext("-4 dns lookup on hostname \"%s\" failed"), $domain));
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246
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case "-5":
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247
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return(gettext("-5 connection refused or timed out"));
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248
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case "-6":
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249
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return(gettext("-6 fdopen() call failed"));
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250
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case "-7":
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251
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return(gettext("-7 setvbuf() call failed"));
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252
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}
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253
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return(sprintf(gettext('could not connect to the host "%1$s": %2$s'), $domain, $error));
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|
254
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}
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|
255
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|
|
256
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Function SASLAuthenticate($mechanisms, $credentials, &$authenticated, &$mechanism)
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|
257
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{
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|
258
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$authenticated=0;
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|
259
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if(!function_exists("class_exists")
|
|
260
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|| !class_exists("sasl_client_class"))
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261
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{
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|
262
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$this->error=gettext("it is not possible to authenticate using the specified mechanism because the SASL library class is not loaded");
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|
263
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return(0);
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|
264
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}
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|
265
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$sasl=new sasl_client_class;
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266
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$sasl->SetCredential("user",$credentials["user"]);
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267
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$sasl->SetCredential("password",$credentials["password"]);
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268
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if(IsSet($credentials["realm"]))
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269
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$sasl->SetCredential("realm",$credentials["realm"]);
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270
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if(IsSet($credentials["workstation"]))
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271
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$sasl->SetCredential("workstation",$credentials["workstation"]);
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272
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if(IsSet($credentials["mode"]))
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273
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$sasl->SetCredential("mode",$credentials["mode"]);
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274
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do
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275
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{
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276
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$status=$sasl->Start($mechanisms,$message,$interactions);
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|
277
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}
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|
278
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while($status==SASL_INTERACT);
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279
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switch($status)
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280
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{
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|
281
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case SASL_CONTINUE:
|
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282
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break;
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|
283
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case SASL_NOMECH:
|
|
284
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if(strlen($this->authentication_mechanism))
|
|
285
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{
|
|
286
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$this->error=printf(gettext('authenticated mechanism %1$s may not be used: %2$s'), $this->authentication_mechanism, $sasl->error);
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|
287
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return(0);
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|
288
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}
|
|
289
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break;
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|
290
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default:
|
|
291
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$this->error=gettext("Could not start the SASL authentication client:") . " ".$sasl->error;
|
|
292
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return(0);
|
|
293
|
}
|
|
294
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if(strlen($mechanism=$sasl->mechanism))
|
|
295
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{
|
|
296
|
if($this->PutLine("AUTH ".$sasl->mechanism.(IsSet($message) ? " ".base64_encode($message) : ""))==0)
|
|
297
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{
|
|
298
|
$this->error=gettext("Could not send the AUTH command");
|
|
299
|
return(0);
|
|
300
|
}
|
|
301
|
if(!$this->VerifyResultLines(array("235","334"),$responses))
|
|
302
|
return(0);
|
|
303
|
switch($this->result_code)
|
|
304
|
{
|
|
305
|
case "235":
|
|
306
|
$response="";
|
|
307
|
$authenticated=1;
|
|
308
|
break;
|
|
309
|
case "334":
|
|
310
|
$response=base64_decode($responses[0]);
|
|
311
|
break;
|
|
312
|
default:
|
|
313
|
$this->error=gettext("Authentication error:") . " ".$responses[0];
|
|
314
|
return(0);
|
|
315
|
}
|
|
316
|
for(;!$authenticated;)
|
|
317
|
{
|
|
318
|
do
|
|
319
|
{
|
|
320
|
$status=$sasl->Step($response,$message,$interactions);
|
|
321
|
}
|
|
322
|
while($status==SASL_INTERACT);
|
|
323
|
switch($status)
|
|
324
|
{
|
|
325
|
case SASL_CONTINUE:
|
|
326
|
if($this->PutLine(base64_encode($message))==0)
|
|
327
|
{
|
|
328
|
$this->error=gettext("Could not send the authentication step message");
|
|
329
|
return(0);
|
|
330
|
}
|
|
331
|
if(!$this->VerifyResultLines(array("235","334"),$responses))
|
|
332
|
return(0);
|
|
333
|
switch($this->result_code)
|
|
334
|
{
|
|
335
|
case "235":
|
|
336
|
$response="";
|
|
337
|
$authenticated=1;
|
|
338
|
break;
|
|
339
|
case "334":
|
|
340
|
$response=base64_decode($responses[0]);
|
|
341
|
break;
|
|
342
|
default:
|
|
343
|
$this->error=gettext("Authentication error:") . " ".$responses[0];
|
|
344
|
return(0);
|
|
345
|
}
|
|
346
|
break;
|
|
347
|
default:
|
|
348
|
$this->error=gettext("Could not process the SASL authentication step:") . " ".$sasl->error;
|
|
349
|
return(0);
|
|
350
|
}
|
|
351
|
}
|
|
352
|
}
|
|
353
|
return(1);
|
|
354
|
}
|
|
355
|
|
|
356
|
/* Public methods */
|
|
357
|
|
|
358
|
Function Connect($domain="")
|
|
359
|
{
|
|
360
|
if(strcmp($this->state,"Disconnected"))
|
|
361
|
{
|
|
362
|
$this->error=gettext("connection is already established");
|
|
363
|
return(0);
|
|
364
|
}
|
|
365
|
$this->disconnected_error=0;
|
|
366
|
$this->error=$error="";
|
|
367
|
$this->esmtp_host="";
|
|
368
|
$this->esmtp_extensions=array();
|
|
369
|
$hosts=array();
|
|
370
|
if($this->direct_delivery)
|
|
371
|
{
|
|
372
|
if(strlen($domain)==0)
|
|
373
|
return(1);
|
|
374
|
$hosts=$weights=$mxhosts=array();
|
|
375
|
$getmxrr=$this->getmxrr;
|
|
376
|
if(function_exists($getmxrr)
|
|
377
|
&& $getmxrr($domain,$hosts,$weights))
|
|
378
|
{
|
|
379
|
for($host=0;$host<count($hosts);$host++)
|
|
380
|
$mxhosts[$weights[$host]]=$hosts[$host];
|
|
381
|
KSort($mxhosts);
|
|
382
|
for(Reset($mxhosts),$host=0;$host<count($mxhosts);Next($mxhosts),$host++)
|
|
383
|
$hosts[$host]=$mxhosts[Key($mxhosts)];
|
|
384
|
}
|
|
385
|
else
|
|
386
|
{
|
|
387
|
if(strcmp(@gethostbyname($domain),$domain)!=0)
|
|
388
|
$hosts[]=$domain;
|
|
389
|
}
|
|
390
|
}
|
|
391
|
else
|
|
392
|
{
|
|
393
|
if(strlen($this->host_name))
|
|
394
|
$hosts[]=$this->host_name;
|
|
395
|
if(strlen($this->pop3_auth_host))
|
|
396
|
{
|
|
397
|
$user=$this->user;
|
|
398
|
if(strlen($user)==0)
|
|
399
|
{
|
|
400
|
$this->error=gettext("it was not specified the POP3 authentication user");
|
|
401
|
return(0);
|
|
402
|
}
|
|
403
|
$password=$this->password;
|
|
404
|
if(strlen($password)==0)
|
|
405
|
{
|
|
406
|
$this->error=gettext("it was not specified the POP3 authentication password");
|
|
407
|
return(0);
|
|
408
|
}
|
|
409
|
$domain=$this->pop3_auth_host;
|
|
410
|
$this->error=$this->ConnectToHost($domain, $this->pop3_auth_port, sprintf(gettext("Resolving POP3 authentication host \"%s\"..."), $domain));
|
|
411
|
if(strlen($this->error))
|
|
412
|
return(0);
|
|
413
|
if(strlen($response=$this->GetLine())==0)
|
|
414
|
return(0);
|
|
415
|
if(strcmp($this->Tokenize($response," "),"+OK"))
|
|
416
|
{
|
|
417
|
$this->error=gettext("POP3 authentication server greeting was not found");
|
|
418
|
return(0);
|
|
419
|
}
|
|
420
|
if(!$this->PutLine("USER ".$this->user)
|
|
421
|
|| strlen($response=$this->GetLine())==0)
|
|
422
|
return(0);
|
|
423
|
if(strcmp($this->Tokenize($response," "),"+OK"))
|
|
424
|
{
|
|
425
|
$this->error=gettext("POP3 authentication user was not accepted:") . " ".$this->Tokenize("\r\n");
|
|
426
|
return(0);
|
|
427
|
}
|
|
428
|
if(!$this->PutLine("PASS ".$password)
|
|
429
|
|| strlen($response=$this->GetLine())==0)
|
|
430
|
return(0);
|
|
431
|
if(strcmp($this->Tokenize($response," "),"+OK"))
|
|
432
|
{
|
|
433
|
$this->error=gettext("POP3 authentication password was not accepted:") . " ".$this->Tokenize("\r\n");
|
|
434
|
return(0);
|
|
435
|
}
|
|
436
|
fclose($this->connection);
|
|
437
|
$this->connection=0;
|
|
438
|
}
|
|
439
|
}
|
|
440
|
if(count($hosts)==0)
|
|
441
|
{
|
|
442
|
$this->error=gettext("could not determine the SMTP to connect");
|
|
443
|
return(0);
|
|
444
|
}
|
|
445
|
for($host=0, $error="not connected";strlen($error) && $host<count($hosts);$host++)
|
|
446
|
{
|
|
447
|
$domain=$hosts[$host];
|
|
448
|
$error=$this->ConnectToHost($domain, $this->host_port, sprintf(gettext("Resolving SMTP server domain \"%s\"..."), $domain));
|
|
449
|
}
|
|
450
|
if(strlen($error))
|
|
451
|
{
|
|
452
|
$this->error=$error;
|
|
453
|
return(0);
|
|
454
|
}
|
|
455
|
$timeout=($this->data_timeout ? $this->data_timeout : $this->timeout);
|
|
456
|
if($timeout
|
|
457
|
&& function_exists("socket_set_timeout"))
|
|
458
|
socket_set_timeout($this->connection,$timeout,0);
|
|
459
|
if($this->debug)
|
|
460
|
$this->OutputDebug(sprintf(gettext("Connected to SMTP server \"%s\"."), $domain));
|
|
461
|
if($this->VerifyResultLines("220",$responses)>0)
|
|
462
|
{
|
|
463
|
// Send our HELLO
|
|
464
|
$success = $this->hello($this->hostname());
|
|
465
|
if ($this->tls)
|
|
466
|
$success = $this->startTLS();
|
|
467
|
|
|
468
|
if($success
|
|
469
|
&& strlen($this->user)
|
|
470
|
&& strlen($this->pop3_auth_host)==0)
|
|
471
|
{
|
|
472
|
if(!IsSet($this->esmtp_extensions["AUTH"]))
|
|
473
|
{
|
|
474
|
$this->error = gettext("server does not require authentication");
|
|
475
|
$success=0;
|
|
476
|
}
|
|
477
|
else
|
|
478
|
{
|
|
479
|
if(strlen($this->authentication_mechanism))
|
|
480
|
$mechanisms=array($this->authentication_mechanism);
|
|
481
|
else
|
|
482
|
{
|
|
483
|
$mechanisms=array();
|
|
484
|
for($authentication=$this->Tokenize($this->esmtp_extensions["AUTH"]," ");strlen($authentication);$authentication=$this->Tokenize(" "))
|
|
485
|
$mechanisms[]=$authentication;
|
|
486
|
}
|
|
487
|
$credentials=array(
|
|
488
|
"user"=>$this->user,
|
|
489
|
"password"=>$this->password
|
|
490
|
);
|
|
491
|
if(strlen($this->realm))
|
|
492
|
$credentials["realm"]=$this->realm;
|
|
493
|
if(strlen($this->workstation))
|
|
494
|
$credentials["workstation"]=$this->workstation;
|
|
495
|
$success=$this->SASLAuthenticate($mechanisms,$credentials,$authenticated,$mechanism);
|
|
496
|
if(!$success
|
|
497
|
&& !strcmp($mechanism,"PLAIN"))
|
|
498
|
{
|
|
499
|
/*
|
|
500
|
* Author: Russell Robinson, 25 May 2003, http://www.tectite.com/
|
|
501
|
* Purpose: Try various AUTH PLAIN authentication methods.
|
|
502
|
*/
|
|
503
|
$mechanisms=array("PLAIN");
|
|
504
|
$credentials=array(
|
|
505
|
"user"=>$this->user,
|
|
506
|
"password"=>$this->password
|
|
507
|
);
|
|
508
|
if(strlen($this->realm))
|
|
509
|
{
|
|
510
|
/*
|
|
511
|
* According to: http://www.sendmail.org/~ca/email/authrealms.html#authpwcheck_method
|
|
512
|
* some sendmails won't accept the realm, so try again without it
|
|
513
|
*/
|
|
514
|
$success=$this->SASLAuthenticate($mechanisms,$credentials,$authenticated,$mechanism);
|
|
515
|
}
|
|
516
|
if(!$success)
|
|
517
|
{
|
|
518
|
/*
|
|
519
|
* It was seen an EXIM configuration like this:
|
|
520
|
* user^password^unused
|
|
521
|
*/
|
|
522
|
$credentials["mode"]=SASL_PLAIN_EXIM_DOCUMENTATION_MODE;
|
|
523
|
$success=$this->SASLAuthenticate($mechanisms,$credentials,$authenticated,$mechanism);
|
|
524
|
}
|
|
525
|
if(!$success)
|
|
526
|
{
|
|
527
|
/*
|
|
528
|
* ... though: http://exim.work.de/exim-html-3.20/doc/html/spec_36.html
|
|
529
|
* specifies: ^user^password
|
|
530
|
*/
|
|
531
|
$credentials["mode"]=SASL_PLAIN_EXIM_MODE;
|
|
532
|
$success=$this->SASLAuthenticate($mechanisms,$credentials,$authenticated,$mechanism);
|
|
533
|
}
|
|
534
|
}
|
|
535
|
if($success
|
|
536
|
&& strlen($mechanism)==0)
|
|
537
|
{
|
|
538
|
$this->error=gettext("it is not supported any of the authentication mechanisms required by the server");
|
|
539
|
$success=0;
|
|
540
|
}
|
|
541
|
}
|
|
542
|
}
|
|
543
|
}
|
|
544
|
if($success)
|
|
545
|
{
|
|
546
|
$this->state="Connected";
|
|
547
|
$this->connected_domain=$domain;
|
|
548
|
}
|
|
549
|
else
|
|
550
|
{
|
|
551
|
fclose($this->connection);
|
|
552
|
$this->connection=0;
|
|
553
|
}
|
|
554
|
return($success);
|
|
555
|
}
|
|
556
|
|
|
557
|
Function hostname() {
|
|
558
|
if(!strcmp($localhost=$this->localhost,"")
|
|
559
|
&& !strcmp($localhost=getenv("SERVER_NAME"),"")
|
|
560
|
&& !strcmp($localhost=getenv("HOST"),"")
|
|
561
|
&& !strcmp($localhost=getenv("HOSTNAME"),"")
|
|
562
|
&& !strcmp($localhost=gethostname(),""))
|
|
563
|
$localhost="localhost";
|
|
564
|
|
|
565
|
return $localhost;
|
|
566
|
}
|
|
567
|
|
|
568
|
Function hello()
|
|
569
|
{
|
|
570
|
$success = 0;
|
|
571
|
$fallback = 1;
|
|
572
|
if ($this->esmtp || strlen($this->user)) {
|
|
573
|
if ($this->PutLine("EHLO ".$this->hostname())) {
|
|
574
|
if (($success_code = $this->VerifyResultLines("250",$responses)) > 0) {
|
|
575
|
$this->esmtp_host = $this->Tokenize($responses[0]," ");
|
|
576
|
for($response=1;$response<count($responses);$response++) {
|
|
577
|
$extension = strtoupper($this->Tokenize($responses[$response]," "));
|
|
578
|
$this->esmtp_extensions[$extension]=$this->Tokenize("");
|
|
579
|
}
|
|
580
|
$success = 1;
|
|
581
|
$fallback = 0;
|
|
582
|
} else {
|
|
583
|
if ($success_code == 0) {
|
|
584
|
$code = $this->Tokenize($this->error," -");
|
|
585
|
switch($code) {
|
|
586
|
case "421":
|
|
587
|
$fallback=0;
|
|
588
|
break;
|
|
589
|
}
|
|
590
|
}
|
|
591
|
}
|
|
592
|
} else
|
|
593
|
$fallback=0;
|
|
594
|
}
|
|
595
|
|
|
596
|
if ($fallback) {
|
|
597
|
if ($this->PutLine("HELO $localhost") && $this->VerifyResultLines("250",$responses)>0)
|
|
598
|
$success=1;
|
|
599
|
}
|
|
600
|
return $success;
|
|
601
|
}
|
|
602
|
|
|
603
|
Function startTLS() {
|
|
604
|
if ($this->PutLine("STARTTLS") && $this->VerifyResultLines("220",$responses)>0) {
|
|
605
|
if (!stream_socket_enable_crypto($this->connection,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
|
|
606
|
return false;
|
|
607
|
} else {
|
|
608
|
// Resend HELO since session has been reset
|
|
609
|
return $this->hello($this->hostname);
|
|
610
|
}
|
|
611
|
} else
|
|
612
|
return false;
|
|
613
|
}
|
|
614
|
|
|
615
|
Function MailFrom($sender)
|
|
616
|
{
|
|
617
|
if($this->direct_delivery)
|
|
618
|
{
|
|
619
|
switch($this->state)
|
|
620
|
{
|
|
621
|
case "Disconnected":
|
|
622
|
$this->direct_sender=$sender;
|
|
623
|
return(1);
|
|
624
|
case "Connected":
|
|
625
|
$sender=$this->direct_sender;
|
|
626
|
break;
|
|
627
|
default:
|
|
628
|
$this->error=gettext("direct delivery connection is already established and sender is already set");
|
|
629
|
return(0);
|
|
630
|
}
|
|
631
|
}
|
|
632
|
else
|
|
633
|
{
|
|
634
|
if(strcmp($this->state,"Connected"))
|
|
635
|
{
|
|
636
|
$this->error=gettext("connection is not in the initial state");
|
|
637
|
return(0);
|
|
638
|
}
|
|
639
|
}
|
|
640
|
$this->error="";
|
|
641
|
if(!$this->PutLine("MAIL FROM:<$sender>"))
|
|
642
|
return(0);
|
|
643
|
if(!IsSet($this->esmtp_extensions["PIPELINING"])
|
|
644
|
&& $this->VerifyResultLines("250",$responses)<=0)
|
|
645
|
return(0);
|
|
646
|
$this->state="SenderSet";
|
|
647
|
if(IsSet($this->esmtp_extensions["PIPELINING"]))
|
|
648
|
$this->pending_sender=1;
|
|
649
|
$this->pending_recipients=0;
|
|
650
|
return(1);
|
|
651
|
}
|
|
652
|
|
|
653
|
Function SetRecipient($recipient)
|
|
654
|
{
|
|
655
|
if($this->direct_delivery)
|
|
656
|
{
|
|
657
|
if(GetType($at=strrpos($recipient,"@"))!="integer")
|
|
658
|
return(gettext("it was not specified a valid direct recipient"));
|
|
659
|
$domain=substr($recipient,$at+1);
|
|
660
|
switch($this->state)
|
|
661
|
{
|
|
662
|
case "Disconnected":
|
|
663
|
if(!$this->Connect($domain))
|
|
664
|
return(0);
|
|
665
|
if(!$this->MailFrom(""))
|
|
666
|
{
|
|
667
|
$error=$this->error;
|
|
668
|
$this->Disconnect();
|
|
669
|
$this->error=$error;
|
|
670
|
return(0);
|
|
671
|
}
|
|
672
|
break;
|
|
673
|
case "SenderSet":
|
|
674
|
case "RecipientSet":
|
|
675
|
if(strcmp($this->connected_domain,$domain))
|
|
676
|
{
|
|
677
|
$this->error=gettext("it is not possible to deliver directly to recipients of different domains");
|
|
678
|
return(0);
|
|
679
|
}
|
|
680
|
break;
|
|
681
|
default:
|
|
682
|
$this->error=gettext("connection is already established and the recipient is already set");
|
|
683
|
return(0);
|
|
684
|
}
|
|
685
|
}
|
|
686
|
else
|
|
687
|
{
|
|
688
|
switch($this->state)
|
|
689
|
{
|
|
690
|
case "SenderSet":
|
|
691
|
case "RecipientSet":
|
|
692
|
break;
|
|
693
|
default:
|
|
694
|
$this->error=gettext("connection is not in the recipient setting state");
|
|
695
|
return(0);
|
|
696
|
}
|
|
697
|
}
|
|
698
|
$this->error="";
|
|
699
|
if(!$this->PutLine("RCPT TO:<$recipient>"))
|
|
700
|
return(0);
|
|
701
|
if(IsSet($this->esmtp_extensions["PIPELINING"]))
|
|
702
|
{
|
|
703
|
$this->pending_recipients++;
|
|
704
|
if($this->pending_recipients>=$this->maximum_piped_recipients)
|
|
705
|
{
|
|
706
|
if(!$this->FlushRecipients())
|
|
707
|
return(0);
|
|
708
|
}
|
|
709
|
}
|
|
710
|
else
|
|
711
|
{
|
|
712
|
if($this->VerifyResultLines(array("250","251"),$responses)<=0)
|
|
713
|
return(0);
|
|
714
|
}
|
|
715
|
$this->state="RecipientSet";
|
|
716
|
return(1);
|
|
717
|
}
|
|
718
|
|
|
719
|
Function StartData()
|
|
720
|
{
|
|
721
|
if(strcmp($this->state,"RecipientSet"))
|
|
722
|
{
|
|
723
|
$this->error=gettext("connection is not in the start sending data state");
|
|
724
|
return(0);
|
|
725
|
}
|
|
726
|
$this->error="";
|
|
727
|
if(!$this->PutLine("DATA"))
|
|
728
|
return(0);
|
|
729
|
if($this->pending_recipients)
|
|
730
|
{
|
|
731
|
if(!$this->FlushRecipients())
|
|
732
|
return(0);
|
|
733
|
}
|
|
734
|
if($this->VerifyResultLines("354",$responses)<=0)
|
|
735
|
return(0);
|
|
736
|
$this->state="SendingData";
|
|
737
|
return(1);
|
|
738
|
}
|
|
739
|
|
|
740
|
Function PrepareData(&$data,&$output,$preg=1)
|
|
741
|
{
|
|
742
|
if($preg
|
|
743
|
&& function_exists("preg_replace"))
|
|
744
|
$output=preg_replace(array("/\n\n|\r\r/","/(^|[^\r])\n/","/\r([^\n]|\$)/D","/(^|\n)\\./"),array("\r\n\r\n","\\1\r\n","\r\n\\1","\\1.."),$data);
|
|
745
|
else
|
|
746
|
$output=ereg_replace("(^|\n)\\.","\\1..",ereg_replace("\r([^\n]|\$)","\r\n\\1",ereg_replace("(^|[^\r])\n","\\1\r\n",ereg_replace("\n\n|\r\r","\r\n\r\n",$data))));
|
|
747
|
}
|
|
748
|
|
|
749
|
Function SendData($data)
|
|
750
|
{
|
|
751
|
if(strcmp($this->state,"SendingData"))
|
|
752
|
{
|
|
753
|
$this->error=gettext("connection is not in the sending data state");
|
|
754
|
return(0);
|
|
755
|
}
|
|
756
|
$this->error="";
|
|
757
|
return($this->PutData($data));
|
|
758
|
}
|
|
759
|
|
|
760
|
Function EndSendingData()
|
|
761
|
{
|
|
762
|
if(strcmp($this->state,"SendingData"))
|
|
763
|
{
|
|
764
|
$this->error=gettext("connection is not in the sending data state");
|
|
765
|
return(0);
|
|
766
|
}
|
|
767
|
$this->error="";
|
|
768
|
if(!$this->PutLine("\r\n.")
|
|
769
|
|| $this->VerifyResultLines("250",$responses)<=0)
|
|
770
|
return(0);
|
|
771
|
$this->state="Connected";
|
|
772
|
return(1);
|
|
773
|
}
|
|
774
|
|
|
775
|
Function ResetConnection()
|
|
776
|
{
|
|
777
|
switch($this->state)
|
|
778
|
{
|
|
779
|
case "Connected":
|
|
780
|
return(1);
|
|
781
|
case "SendingData":
|
|
782
|
$this->error="can not reset the connection while sending data";
|
|
783
|
return(0);
|
|
784
|
case "Disconnected":
|
|
785
|
$this->error="can not reset the connection before it is established";
|
|
786
|
return(0);
|
|
787
|
}
|
|
788
|
$this->error="";
|
|
789
|
if(!$this->PutLine("RSET")
|
|
790
|
|| $this->VerifyResultLines("250",$responses)<=0)
|
|
791
|
return(0);
|
|
792
|
$this->state="Connected";
|
|
793
|
return(1);
|
|
794
|
}
|
|
795
|
|
|
796
|
Function Disconnect($quit=1)
|
|
797
|
{
|
|
798
|
if(!strcmp($this->state,"Disconnected"))
|
|
799
|
{
|
|
800
|
$this->error=gettext("it was not previously established a SMTP connection");
|
|
801
|
return(0);
|
|
802
|
}
|
|
803
|
$this->error="";
|
|
804
|
if(!strcmp($this->state,"Connected")
|
|
805
|
&& $quit
|
|
806
|
&& (!$this->PutLine("QUIT")
|
|
807
|
|| ($this->VerifyResultLines("221",$responses)<=0
|
|
808
|
&& !$this->disconnected_error)))
|
|
809
|
return(0);
|
|
810
|
if($this->disconnected_error)
|
|
811
|
$this->disconnected_error=0;
|
|
812
|
else
|
|
813
|
fclose($this->connection);
|
|
814
|
$this->connection=0;
|
|
815
|
$this->state="Disconnected";
|
|
816
|
if($this->debug)
|
|
817
|
$this->OutputDebug("Disconnected.");
|
|
818
|
return(1);
|
|
819
|
}
|
|
820
|
|
|
821
|
Function SendMessage($sender,$recipients,$headers,$body)
|
|
822
|
{
|
|
823
|
if(($success=$this->Connect()))
|
|
824
|
{
|
|
825
|
if(($success=$this->MailFrom($sender)))
|
|
826
|
{
|
|
827
|
for($recipient=0;$recipient<count($recipients);$recipient++)
|
|
828
|
{
|
|
829
|
if(!($success=$this->SetRecipient($recipients[$recipient])))
|
|
830
|
break;
|
|
831
|
}
|
|
832
|
if($success
|
|
833
|
&& ($success=$this->StartData()))
|
|
834
|
{
|
|
835
|
for($header_data="",$header=0;$header<count($headers);$header++)
|
|
836
|
$header_data.=$headers[$header]."\r\n";
|
|
837
|
if(($success=$this->SendData($header_data."\r\n")))
|
|
838
|
{
|
|
839
|
$this->PrepareData($body,$body_data);
|
|
840
|
$success=$this->SendData($body_data);
|
|
841
|
}
|
|
842
|
if($success)
|
|
843
|
$success=$this->EndSendingData();
|
|
844
|
}
|
|
845
|
}
|
|
846
|
$error=$this->error;
|
|
847
|
$disconnect_success=$this->Disconnect($success);
|
|
848
|
if($success)
|
|
849
|
$success=$disconnect_success;
|
|
850
|
else
|
|
851
|
$this->error=$error;
|
|
852
|
}
|
|
853
|
return($success);
|
|
854
|
}
|
|
855
|
|
|
856
|
};
|
|
857
|
|
|
858
|
?>
|