smtp郵件發送一例

來源:互聯網
上載者:User
關鍵字 smtp郵件發送一例
test_smtp.php

require("smtp.php");

$smtp=new smtp_class;

$smtp->host_name="mail.xiaocui.com";
$smtp->localhost="localhost";
$from="webmaster@xiaocui.com";
$to="root@xiaocui.com";
if($smtp->SendMessage(
 $from,
 array(
  $to
 ),
 array(
  "From: $from",
  "To: $to",
  "Subject: Testing Manuel Lemos' SMTP class"
 ),
 "Hello $to,\n\nIt is just to let you know that your SMTP class is working just fine.\n\nBye.\n"))
 echo "Message sent to $to OK.\n";
else
 echo "Cound not send the message to $to.\nError: ".$smtp->error."\n"
?>

smtp.php


class smtp_class
{
var $host_name="";
var $host_port=25;
var $localhost="";
var $timeout=0;
var $error="";
var $debug=1;
var $esmtp=1;
var $esmtp_host="";
var $esmtp_extensions=array();
var $maximum_piped_recipients=100;

/* PRivate variables - DO NOT access */

var $state="Disconnected";
var $connection=0;
var $pending_recipients=0;

/* Private methods - DO NOT CALL */

Function OutputDebug($message)
{
 echo $message,"
\n";
}

Function GetLine()
{
 for($line="";;)
 {
  if(feof($this->connection))
  {
  $this->error="reached the end of stream while reading from socket";
  return(0);
  }
  if(($data=fgets($this->connection,100))==false)
  {
  $this->error="it was not possible to read line from socket";
  return(0);
  }
  $line.=$data;
  $length=strlen($line);
  if($length>=2
  && substr($line,$length-2,2)=="\r\n")
  {
  $line=substr($line,0,$length-2);
  if($this->debug)
   $this->OutputDebug("< $line");
  return($line);
  }
 }
}

Function PutLine($line)
{
 if($this->debug)
  $this->OutputDebug("> $line");
 if(!fputs($this->connection,"$line\r\n"))
 {
  $this->error="it was not possible to write line to socket";
  return(0);
 }
 return(1);
}

Function PutData($data)
{
 if(strlen($data))
 {
  if($this->debug)
  $this->OutputDebug("> $data");
  if(!fputs($this->connection,$data))
  {
  $this->error="it was not possible to write data to socket";
  return(0);
  }
 }
 return(1);
}

Function VerifyResultLines($code,$responses="")
{
 if(GetType($responses)!="array")
  $responses=array();
 Unset($match_code);

 while(($line=$this->GetLine($this->connection)))
 {
  if(IsSet($match_code))
  {
  if(strcmp(strtok($line," -"),$match_code))
  {
   $this->error=$line;
   return(0);
  }
  }
  else
  {
  $match_code=strtok($line," -");
  if(GetType($code)=="array")
  {
   for($codes=0;$codes   if($codes>=count($code))
   {
   $this->error=$line;
   return(0);
   }
  }
  else
  {
   if(strcmp($match_code,$code))
   {
   $this->error=$line;
   return(0);
   }
  }
  }
  $responses[]=strtok("");
  if(!strcmp($match_code,strtok($line," ")))
  return(1);
 }
 return(-1);
}

Function FlushRecipients()
{
 if($this->pending_sender)
 {
  if($this->VerifyResultLines("250")<=0)
  return(0);
  $this->pending_sender=0;
 }
 for(;$this->pending_recipients;$this->pending_recipients--)
 {
  if($this->VerifyResultLines(array("250","251"))<=0)
  return(0);
 }
 return(1);
}

/* Public methods */

Function Connect()
{
 $this->error=$error="";
  $this->esmtp_host="";
  $this->esmtp_extensions=array();
 if(!($this->connection=($this->timeout ? fsockopen($this->host_name,$this->host_port,&$errno,&$error,$this->timeout) : fsockopen($this->host_name,$this->host_port))))
 {
  switch($error)
  {
  case -3:
   $this->error="-3 socket could not be created";
   return(0);
  case -4:
   $this->error="-4 dns lookup on hostname \"".$host_name."\" failed";
   return(0);
  case -5:
   $this->error="-5 connection refused or timed out";
   return(0);
  case -6:
   $this->error="-6 fdopen() call failed";
   return(0);
  case -7:
   $this->error="-7 setvbuf() call failed";
   return(0);
  default:
   $this->error=$error." could not connect to the host \"".$this->host_name."\"";
   return(0);
  }
 }
 else
 {
  if(!strcmp($localhost=$this->localhost,"")
  && !strcmp($localhost=getenv("SERVER_NAME"),"")
  && !strcmp($localhost=getenv("HOST"),""))
   $localhost="localhost";
  $success=0;
  if($this->VerifyResultLines("220")>0)
  {
   if($this->esmtp)
   {
   $responses=array();
   if($this->PutLine("EHLO $localhost")
   && $this->VerifyResultLines("250",&$responses)>0)
   {
    $this->esmtp_host=strtok($responses[0]," ");
    for($response=1;$response    {
    $extension=strtoupper(strtok($responses[$response]," "));
    $this->esmtp_extensions[$extension]=strtok("");
    }
    $success=1;
   }
   }
   if(!$success
   && $this->PutLine("HELO $localhost")
   && $this->VerifyResultLines("250")>0)
   $success=1;
  }
  if($success)
  {
  $this->state="Connected";
  return(1);
  }
  else
  {
  fclose($this->connection);
  $this->connection=0;
  $this->state="Disconnected";
  return(0);
  }
 }
}

Function MailFrom($sender)
{
 if(strcmp($this->state,"Connected"))
 {
  $this->error="connection is not in the initial state";
  return(0);
 }
 $this->error="";
 if(!$this->PutLine("MAIL FROM: <".$sender.">"))
  return(0);
 if(!IsSet($this->esmtp_extensions["PIPELINING"])
 && $this->VerifyResultLines("250")<=0)
  return(0);
 $this->state="SenderSet";
 if(IsSet($this->esmtp_extensions["PIPELINING"]))
  $this->pending_sender=1;
 $this->pending_recipients=0;
 return(1);
}

Function SetRecipient($recipient)
{
 switch($this->state)
 {
  case "SenderSet":
  case "RecipientSet":
  break;
  default:
  $this->error="connection is not in the recipient setting state";
  return(0);
 }
 $this->error="";
 if(!$this->PutLine("RCPT TO:<".$recipient.">"))
  return(0);
 if(IsSet($this->esmtp_extensions["PIPELINING"]))
 {
  $this->pending_recipients++;
  if($this->pending_recipients>=$this->maximum_piped_recipients)
  {
  if(!$this->FlushRecipients())
   return(0);
  }
 }
 else
 {
  if($this->VerifyResultLines(array("250","251"))<=0)
  return(0);
 }
 $this->state="RecipientSet";
 return(1);
}

Function StartData()
{
 if(strcmp($this->state,"RecipientSet"))
 {
  $this->error="connection is not in the start sending data state";
  return(0);
 }
 $this->error="";
 if(!$this->PutLine("DATA"))
  return(0);
 if($this->pending_recipients)
 {
  if(!$this->FlushRecipients())
  return(0);
 }
 if($this->VerifyResultLines("354")<=0)
  return(0);
 $this->state="SendingData";
 return(1);
}

Function PrepareData($data,&$output)
{
 $length=strlen(&$data);
 for($output="",$position=0;$position<$length;)
 {
  $next_position=$length;
  for($current=$position;$current<$length;$current++)
  {
  switch($data[$current])
  {
   case "\n":
   $next_position=$current+1;
   break 2;
   case "\r":
   $next_position=$current+1;
   if($data[$next_position]=="\n")
    $next_position++;
   break 2;
  }
  }
  if($data[$position]==".")
  $output.=".";
  $output.=substr(&$data,$position,$current-$position)."\r\n";
  $position=$next_position;
 }
}

Function SendData($data)
{
 if(strcmp($this->state,"SendingData"))
 {
  $this->error="connection is not in the sending data state";
  return(0);
 }
 $this->error="";
 return($this->PutData(&$data));
}

Function EndSendingData()
{
 if(strcmp($this->state,"SendingData"))
 {
  $this->error="connection is not in the sending data state";
  return(0);
 }
 $this->error="";
 if(!$this->PutLine("\r\n.")
 || $this->VerifyResultLines("250")<=0)
  return(0);
 $this->state="Connected";
 return(1);
}

Function ResetConnection()
{
 switch($this->state)
 {
  case "Connected":
  return(1);
  case "SendingData":
  $this->error="can not reset the connection while sending data";
  return(0);
  case "Disconnected":
  $this->error="can not reset the connection before it is established";
  return(0);
 }
 $this->error="";
 if(!$this->PutLine("RSET")
 || $this->VerifyResultLines("250")<=0)
  return(0);
 $this->state="Connected";
 return(1);
}

Function Disconnect($quit=1)
{
 if(!strcmp($this->state,"Disconnected"))
 {
  $this->error="it was not previously established a SMTP connection";
  return(0);
 }
 $this->error="";
 if(!strcmp($this->state,"Connected")
 && $quit
 && (!$this->PutLine("QUIT")
 || $this->VerifyResultLines("221")<=0))
  return(0);
 fclose($this->connection);
 $this->connection=0;
 $this->state="Disconnected";
 return(1);
}

Function SendMessage($sender,$recipients,$headers,$body)
{
 if(($success=$this->Connect()))
 {
  if(($success=$this->MailFrom($sender)))
  {
  for($recipient=0;$recipient  {
   if(!($success=$this->SetRecipient($recipients[$recipient])))
   break;
  }
  if($success
  && ($success=$this->StartData()))
  {
   for($header_data="",$header=0;$header   $header_data.=$headers[$header]."\r\n";
   if(($success=$this->SendData($header_data."\r\n")))
   {
   $this->PrepareData($body,&$body_data);
   $success=$this->SendData($body_data);
   }
   if($success)
   $success=$this->EndSendingData();
  }
  }
  $disconnect_success=$this->Disconnect($success);
  if($success)
  $success=$disconnect_success;
 }
 return($success);
}

};

?>


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