POP3 class _php instance written using PHP socket

Look at the POP3/SMTP protocol when you want to try to write a class, the core is nothing, is the use of fsockopen, and then write/Receive data, only to achieve the most core part of the function, as a learning Socket operation of the practicing. It refers to RFC 2449 and a foreign simple web mail system uebimiau part of the code, but absolutely no copy of his drip, HOHO, absolutely original.

Copy Code code as follows:

<?php


Class Socketpopclient


{


var $strMessage = ';


var $intErrorNum = 0;


var $bolDebug = false;





var $strEmail = ';


var $strPasswd = ';


var $strHost = ';


var $intPort = 110;


var $intConnSecond = 30;


var $intBuffSize = 8192;

var $resHandler = NULL;
var $bolIsLogin = false;
var $strRequest = ';
var $strResponse = ';
var $arrRequest = array ();
var $arrResponse = array ();

//---------------
Basic operations
//---------------

Constructors
function Socketpop3client ($strLoginEmail, $strLoginPasswd, $strPopHost = ', $intPort = ')
{
$this->stremail = Trim (Strtolower ($strLoginEmail));
$this->strpasswd = Trim ($STRLOGINPASSWD);
$this->strhost = Trim (Strtolower ($strPopHost));

if ($this->stremail== ' | | $this->strpasswd== ')


{


$this->setmessage (' Email address or Passwd is empty ', 1001);


return false;


}


if (! Preg_match ("/^[\w-]+" (\.[ \w-]+) *@[\w-]+ (\.[ \w-]+) +$/i ", $this->stremail))


{


$this->setmessage (' Email address invalid ', 1002);


return false;


}


if ($this->strhost== ')


{


$this->strhost = substr (STRRCHR ($this->stremail, "@"), 1);


}


if ($intPort!= ')


{


$this->intport = $intPort;


}


$this->connecthost ();


}





Connecting to a server


function Connecthost ()


{


if ($this->boldebug)


{


echo "Connection". $this->strhost. "... \ r \ n";


}


if (! $this->getisconnect ())


{


if ($this->strhost== ' | | $this->intport== ')


{


$this->setmessage (' POP3 host or Port is empty ', 1003);


return false;


}


$this->reshandler = @fsockopen ($this->strhost, $this->intport, & $this->interrornum, & $this-> strmessage, $this->intconnsecond);


if (! $this->reshandler)


{


$STRERRMSG = ' Connection POP3 host: '. $this->strhost. ' Failed ';


$intErrNum = 2001;


$this->setmessage ($STRERRMSG, $intErrNum);


return false;


}


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


}


return true;


}

Close connection
function Closehost ()
{
if ($this->reshandler)
{
Fclose ($this->reshandler);
}
return true;
}

   //Send instruction
    function SendCommand ($strCommand)
    {
        if ($this->boldebug)
        {
            if (!preg_match ("/pass/", $strCommand))
            {
                 echo "Send Command:". $strCommand. " \ r \ n ";
           }
            Else
             {
                 echo "Send command:pass ******\r\n";
           }

}


if (! $this->getisconnect ())


{


return false;


}


if (Trim ($strCommand) = = ")


{


$this->setmessage (' Request command is empty ', 1004);


return false;


}


$this->strrequest = $strCommand. " \ r \ n ";


$this->arrrequest[] = $strCommand;


Fputs ($this->reshandler, $this->strrequest);


return true;


}

Extract response information First line
function Getlineresponse ()
{
if (! $this->getisconnect ())
{
return false;
}
$this->strresponse = fgets ($this->reshandler, $this->intbuffsize);
$this->arrresponse[] = $this->strresponse;

return $this->strresponse;
}

Extracts a number of response information, $intReturnType is the return value type, 1 is a string, and 2 is an array


function Getrespmessage ($intReturnType)


{


if (! $this->getisconnect ())


{


return false;


}


if ($intReturnType = = 1)


{


$strAllResponse = ';


while (!feof ($this->reshandler))


{


$strLineResponse = $this->getlineresponse ();


if (Preg_match ("/^\+ok/", $strLineResponse))


{


Continue


}


if (Trim ($strLineResponse) = = '. ')


{


Break


}


$strAllResponse. = $strLineResponse;


}


return $strAllResponse;


}


Else


{


$arrAllResponse = Array ();


while (!feof ($this->reshandler))


{


$strLineResponse = $this->getlineresponse ();


if (Preg_match ("/^\+ok/", $strLineResponse))


{


Continue


}


if (Trim ($strLineResponse) = = '. ')


{


Break


}


$arrAllResponse [] = $strLineResponse;


}


return $arrAllResponse;


}


}

Whether the fetch request was successful


function getrestissucceed ($strRespMessage = ')


{


if (Trim ($responseMessage) = = ")


{


if ($this->strresponse== ')


{


$this->getlineresponse ();


}


$strRespMessage = $this->strresponse;


}


if (Trim ($strRespMessage) = = ")


{


$this->setmessage (' Response message is empty ', 2003);


return false;


}


if (!preg_match ("/^\+ok/", $strRespMessage))


{


$this->setmessage ($strRespMessage, 2000);


return false;


}


return true;


}

   //Get Connected
    function getisconnect ()
    {
         if (! $this->reshandler)
        {
            $this->setmessage ("nonexistent Availability Connection Handler ", 2002);
            return false;
       }
        return true;
   }

Setting up messages
function Setmessage ($strMessage, $intErrorNum)
{
if (Trim ($strMessage) = = ' | | $intErrorNum = = ')
{
return false;
}
$this->strmessage = $strMessage;
$this->interrornum = $intErrorNum;
return true;
}

Get message
function GetMessage ()
{
return $this->strmessage;
}

Get error number
function Geterrornum ()
{
return $this->interrornum;
}

GET request Information
function Getrequest ()
{
return $this->strrequest;
}

Get response information
function GetResponse ()
{
return $this->strresponse;
}

//---------------
Mail atomic operation
//---------------

Login Mailbox
function Poplogin ()
{
if (! $this->getisconnect ())
{
return false;
}
$this->sendcommand ("USER". $this->stremail);
$this->getlineresponse ();
$bolUserRight = $this->getrestissucceed ();

$this->sendcommand ("Pass" $this->strpasswd);
$this->getlineresponse ();
$bolPassRight = $this->getrestissucceed ();

        if (! $bolUserRight | |! $bolPassRight)
         {
            $this->setmessage ( $this->strresponse, 2004);
            return false;
       }        
         $this->bolislogin = true;
        return true;
   }

   //Exit login
    function poplogout ()
    {
         if (! $this->getisconnect () && $this->bolislogin)
         {
            return False
       }
        $this->sendcommand ("QUIT");
        $this->getlineresponse ();
        if (! $this->getrestissucceed ())
         {
            return false;
       }
        return true;
   }

   /Get online
    function getisonline ()
    {
         if (! $this->getisconnect () && $this->bolislogin)
         {
            return false;
       }
        $this->sendcommand ("NOOP");
        $this->getlineresponse ();
        if (! $this->getrestissucceed ())
         {
            return false;
       }
        return true;        
   }

Get the number of messages and bytes (return array)


function Getmailsum ($intReturnType =2)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


$this->sendcommand ("STAT");


$strLineResponse = $this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


if ($intReturnType ==1)


{


return $this->strresponse;


}


Else


{


$arrResponse = Explode ("", $this->strresponse);


if (!is_array ($arrResponse) | | | | COUNT ($arrResponse) <=0)


{


$this->setmessage (' STAT command response message is error ', 2006);


return false;


}


return Array ($arrResponse [1], $arrResponse [2]);


}


}

Gets the session Id for the specified message


function Getmailsessid ($intMailId, $intReturnType =2)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


if (! $intMailId = Intval ($intMailId))


{


$this->setmessage (' Mail Message ID invalid ', 1005);


return false;


}


$this->sendcommand ("UIDL"). $INTMAILID);


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


if ($intReturnType = = 1)


{


return $this->strresponse;


}


Else


{


$arrResponse = Explode ("", $this->strresponse);


if (!is_array ($arrResponse) | | | | COUNT ($arrResponse) <=0)


{


$this->setmessage (' UIDL command response message is error ', 2006);


return false;


}


return Array ($arrResponse [1], $arrResponse [2]);


}


}

Get the size of a message


function Getmailsize ($intMailId, $intReturnType =2)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


$this->sendcommand ("LIST". $intMailId);


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


if ($intReturnType = = 1)


{


return $this->strresponse;


}


Else


{


$arrMessage = Explode (", $this->strresponse);


return Array ($arrMessage [1], $arrMessage [2]);


}


}

   //Get mail base list array
    function getmailbaselist ($intReturnType =2)
     {
        if (! $this->getisconnect () && $this-> Bolislogin)
        {
             return false;
       }
        $this->sendcommand ("LIST");
        $this->getlineresponse ();
        if (! $this->getrestissucceed ())
         {
            return false;
       }
        return $this->getrespmessage ($intReturnType);
   }

Gets all information for the specified message, Intreturntype is the return value type, 1 is a string, and 2 is an array


function Getmailmessage ($intMailId, $intReturnType =1)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


if (! $intMailId = Intval ($intMailId))


{


$this->setmessage (' Mail Message ID invalid ', 1005);


return false;


}


$this->sendcommand ("RETR"). $INTMAILID);


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


return $this->getrespmessage ($intReturnType);


}

Specifies the line before getting a message, $intReturnType return value type, 1 is a string, and 2 is an array


function Getmailtopmessage ($intMailId, $intTopLines =10, $intReturnType =1)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


if (! $intMailId =intval ($intMailId) | |! $intTopLines =int ($intTopLines))


{


$this->setmessage (' Mail message ID or top lines number invalid ', 1005);


return false;


}


$this->sendcommand ("Top"). $intMailId. " ". $intTopLines);


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


return $this->getrespmessage ($intReturnType);


}

Delete message


function Delmail ($intMailId)


{


if (! $this->getisconnect () && $this->bolislogin)


{


return false;


}


if (! $intMailId =intval ($intMailId))


{


$this->setmessage (' Mail Message ID invalid ', 1005);


return false;


}


$this->sendcommand ("DELE". $intMailId);


$this->getlineresponse ();


if (! $this->getrestissucceed ())


{


return false;


}


return true;


}

   //Reset deleted messages marked as not deleted
    function Resetdelemail ()
    {
& nbsp;       if (! $this->getisconnect () && $this->bolislogin)
         {
            return false;
       }
        $this->sendcommand ("RSET");
        $this->getlineresponse ();
        if (! $this->getrestissucceed ())
         {
            return false;
       }
        return true;        
   }

//---------------
Debugging operations
//---------------

Output object Information
function PrintObject ()
{
Print_r ($this);
Exit
}

Output error message
function Printerror ()
{
echo "[Error MSG]: $strMessage <br>\n";
echo "[Error Num]: $intErrorNum <br>\n";
Exit
}

   /Output host information
    function printhost ()
    {
  & nbsp;     echo "[host] : $this->strhost <br>\n";
        echo "[port] : $this->intport <br>\n";
        Echo [Email]: $this->stremail <br>\n ";
        Echo [Passwd]: ******** <br>\n ";
        exit;
   }

Output connection Information
function Printconnect ()
{
echo "[Connect]: $this->reshandler <br>\n";
echo "[Request]: $this->strrequest <br>\n";
echo "[Response]: $this->strresponse <br>\n";
Exit
}
}

?>
?
Test code
For example: $o = socketpop3client (' Email address ', ' password ', ' POP3 server ', ' POP3 Port ')

/*
Set_time_limit (0);
$o = new Socketpopclient (' abc@126.com ', ' 123456 ', ' pop.126.com ', ' 110 ');
$o->poplogin ();
Print_r ($o->getmailbaselist ());
Print_r ($o->getmailsum (1));
Print_r ($o->getmailtopmessage (2, 2, 2));
$o->poplogout ();
$o->closehost ();
$o->printobject ();
*/
?>