web/wp-includes/class-pop3.php
branchwordpress
changeset 132 4d4862461b8d
parent 109 03b0d1493584
--- a/web/wp-includes/class-pop3.php	Tue Feb 02 14:45:47 2010 +0000
+++ b/web/wp-includes/class-pop3.php	Tue Feb 02 15:44:16 2010 +0000
@@ -1,651 +1,651 @@
-<?php
-/**
- * mail_fetch/setup.php
- *
- * @package SquirrelMail
- *
- * @copyright (c) 1999-2006 The SquirrelMail Project Team
- *
- * @copyright (c) 1999 CDI (cdi@thewebmasters.net) All Rights Reserved
- * Modified by Philippe Mingo 2001 mingo@rotedic.com
- * An RFC 1939 compliant wrapper class for the POP3 protocol.
- *
- * Licensed under the GNU GPL. For full terms see the file COPYING.
- *
- * pop3 class
- *
- * $Id: class-pop3.php 9503 2008-11-03 23:25:11Z ryan $
- */
-
-class POP3 {
-    var $ERROR      = '';       //  Error string.
-
-    var $TIMEOUT    = 60;       //  Default timeout before giving up on a
-                                //  network operation.
-
-    var $COUNT      = -1;       //  Mailbox msg count
-
-    var $BUFFER     = 512;      //  Socket buffer for socket fgets() calls.
-                                //  Per RFC 1939 the returned line a POP3
-                                //  server can send is 512 bytes.
-
-    var $FP         = '';       //  The connection to the server's
-                                //  file descriptor
-
-    var $MAILSERVER = '';       // Set this to hard code the server name
-
-    var $DEBUG      = FALSE;    // set to true to echo pop3
-                                // commands and responses to error_log
-                                // this WILL log passwords!
-
-    var $BANNER     = '';       //  Holds the banner returned by the
-                                //  pop server - used for apop()
-
-    var $ALLOWAPOP  = FALSE;    //  Allow or disallow apop()
-                                //  This must be set to true
-                                //  manually
-
-    function POP3 ( $server = '', $timeout = '' ) {
-        settype($this->BUFFER,"integer");
-        if( !empty($server) ) {
-            // Do not allow programs to alter MAILSERVER
-            // if it is already specified. They can get around
-            // this if they -really- want to, so don't count on it.
-            if(empty($this->MAILSERVER))
-                $this->MAILSERVER = $server;
-        }
-        if(!empty($timeout)) {
-            settype($timeout,"integer");
-            $this->TIMEOUT = $timeout;
-            if (!ini_get('safe_mode'))
-                set_time_limit($timeout);
-        }
-        return true;
-    }
-
-    function update_timer () {
-        if (!ini_get('safe_mode'))
-            set_time_limit($this->TIMEOUT);
-        return true;
-    }
-
-    function connect ($server, $port = 110)  {
-        //  Opens a socket to the specified server. Unless overridden,
-        //  port defaults to 110. Returns true on success, false on fail
-
-        // If MAILSERVER is set, override $server with it's value
-
-	if (!isset($port) || !$port) {$port = 110;}
-        if(!empty($this->MAILSERVER))
-            $server = $this->MAILSERVER;
-
-        if(empty($server)){
-            $this->ERROR = "POP3 connect: " . _("No server specified");
-            unset($this->FP);
-            return false;
-        }
-
-        $fp = @fsockopen("$server", $port, $errno, $errstr);
-
-        if(!$fp) {
-            $this->ERROR = "POP3 connect: " . _("Error ") . "[$errno] [$errstr]";
-            unset($this->FP);
-            return false;
-        }
-
-        socket_set_blocking($fp,-1);
-        $this->update_timer();
-        $reply = fgets($fp,$this->BUFFER);
-        $reply = $this->strip_clf($reply);
-        if($this->DEBUG)
-            error_log("POP3 SEND [connect: $server] GOT [$reply]",0);
-        if(!$this->is_ok($reply)) {
-            $this->ERROR = "POP3 connect: " . _("Error ") . "[$reply]";
-            unset($this->FP);
-            return false;
-        }
-        $this->FP = $fp;
-        $this->BANNER = $this->parse_banner($reply);
-        return true;
-    }
-
-    function user ($user = "") {
-        // Sends the USER command, returns true or false
-
-        if( empty($user) ) {
-            $this->ERROR = "POP3 user: " . _("no login ID submitted");
-            return false;
-        } elseif(!isset($this->FP)) {
-            $this->ERROR = "POP3 user: " . _("connection not established");
-            return false;
-        } else {
-            $reply = $this->send_cmd("USER $user");
-            if(!$this->is_ok($reply)) {
-                $this->ERROR = "POP3 user: " . _("Error ") . "[$reply]";
-                return false;
-            } else
-                return true;
-        }
-    }
-
-    function pass ($pass = "")     {
-        // Sends the PASS command, returns # of msgs in mailbox,
-        // returns false (undef) on Auth failure
-
-        if(empty($pass)) {
-            $this->ERROR = "POP3 pass: " . _("No password submitted");
-            return false;
-        } elseif(!isset($this->FP)) {
-            $this->ERROR = "POP3 pass: " . _("connection not established");
-            return false;
-        } else {
-            $reply = $this->send_cmd("PASS $pass");
-            if(!$this->is_ok($reply)) {
-                $this->ERROR = "POP3 pass: " . _("Authentication failed") . " [$reply]";
-                $this->quit();
-                return false;
-            } else {
-                //  Auth successful.
-                $count = $this->last("count");
-                $this->COUNT = $count;
-                return $count;
-            }
-        }
-    }
-
-    function apop ($login,$pass) {
-        //  Attempts an APOP login. If this fails, it'll
-        //  try a standard login. YOUR SERVER MUST SUPPORT
-        //  THE USE OF THE APOP COMMAND!
-        //  (apop is optional per rfc1939)
-
-        if(!isset($this->FP)) {
-            $this->ERROR = "POP3 apop: " . _("No connection to server");
-            return false;
-        } elseif(!$this->ALLOWAPOP) {
-            $retVal = $this->login($login,$pass);
-            return $retVal;
-        } elseif(empty($login)) {
-            $this->ERROR = "POP3 apop: " . _("No login ID submitted");
-            return false;
-        } elseif(empty($pass)) {
-            $this->ERROR = "POP3 apop: " . _("No password submitted");
-            return false;
-        } else {
-            $banner = $this->BANNER;
-            if( (!$banner) or (empty($banner)) ) {
-                $this->ERROR = "POP3 apop: " . _("No server banner") . ' - ' . _("abort");
-                $retVal = $this->login($login,$pass);
-                return $retVal;
-            } else {
-                $AuthString = $banner;
-                $AuthString .= $pass;
-                $APOPString = md5($AuthString);
-                $cmd = "APOP $login $APOPString";
-                $reply = $this->send_cmd($cmd);
-                if(!$this->is_ok($reply)) {
-                    $this->ERROR = "POP3 apop: " . _("apop authentication failed") . ' - ' . _("abort");
-                    $retVal = $this->login($login,$pass);
-                    return $retVal;
-                } else {
-                    //  Auth successful.
-                    $count = $this->last("count");
-                    $this->COUNT = $count;
-                    return $count;
-                }
-            }
-        }
-    }
-
-    function login ($login = "", $pass = "") {
-        // Sends both user and pass. Returns # of msgs in mailbox or
-        // false on failure (or -1, if the error occurs while getting
-        // the number of messages.)
-
-        if( !isset($this->FP) ) {
-            $this->ERROR = "POP3 login: " . _("No connection to server");
-            return false;
-        } else {
-            $fp = $this->FP;
-            if( !$this->user( $login ) ) {
-                //  Preserve the error generated by user()
-                return false;
-            } else {
-                $count = $this->pass($pass);
-                if( (!$count) || ($count == -1) ) {
-                    //  Preserve the error generated by last() and pass()
-                    return false;
-                } else
-                    return $count;
-            }
-        }
-    }
-
-    function top ($msgNum, $numLines = "0") {
-        //  Gets the header and first $numLines of the msg body
-        //  returns data in an array with each returned line being
-        //  an array element. If $numLines is empty, returns
-        //  only the header information, and none of the body.
-
-        if(!isset($this->FP)) {
-            $this->ERROR = "POP3 top: " . _("No connection to server");
-            return false;
-        }
-        $this->update_timer();
-
-        $fp = $this->FP;
-        $buffer = $this->BUFFER;
-        $cmd = "TOP $msgNum $numLines";
-        fwrite($fp, "TOP $msgNum $numLines\r\n");
-        $reply = fgets($fp, $buffer);
-        $reply = $this->strip_clf($reply);
-        if($this->DEBUG) {
-            @error_log("POP3 SEND [$cmd] GOT [$reply]",0);
-        }
-        if(!$this->is_ok($reply))
-        {
-            $this->ERROR = "POP3 top: " . _("Error ") . "[$reply]";
-            return false;
-        }
-
-        $count = 0;
-        $MsgArray = array();
-
-        $line = fgets($fp,$buffer);
-        while ( !ereg("^\.\r\n",$line))
-        {
-            $MsgArray[$count] = $line;
-            $count++;
-            $line = fgets($fp,$buffer);
-            if(empty($line))    { break; }
-        }
-
-        return $MsgArray;
-    }
-
-    function pop_list ($msgNum = "") {
-        //  If called with an argument, returns that msgs' size in octets
-        //  No argument returns an associative array of undeleted
-        //  msg numbers and their sizes in octets
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 pop_list: " . _("No connection to server");
-            return false;
-        }
-        $fp = $this->FP;
-        $Total = $this->COUNT;
-        if( (!$Total) or ($Total == -1) )
-        {
-            return false;
-        }
-        if($Total == 0)
-        {
-            return array("0","0");
-            // return -1;   // mailbox empty
-        }
-
-        $this->update_timer();
-
-        if(!empty($msgNum))
-        {
-            $cmd = "LIST $msgNum";
-            fwrite($fp,"$cmd\r\n");
-            $reply = fgets($fp,$this->BUFFER);
-            $reply = $this->strip_clf($reply);
-            if($this->DEBUG) {
-                @error_log("POP3 SEND [$cmd] GOT [$reply]",0);
-            }
-            if(!$this->is_ok($reply))
-            {
-                $this->ERROR = "POP3 pop_list: " . _("Error ") . "[$reply]";
-                return false;
-            }
-            list($junk,$num,$size) = preg_split('/\s+/',$reply);
-            return $size;
-        }
-        $cmd = "LIST";
-        $reply = $this->send_cmd($cmd);
-        if(!$this->is_ok($reply))
-        {
-            $reply = $this->strip_clf($reply);
-            $this->ERROR = "POP3 pop_list: " . _("Error ") .  "[$reply]";
-            return false;
-        }
-        $MsgArray = array();
-        $MsgArray[0] = $Total;
-        for($msgC=1;$msgC <= $Total; $msgC++)
-        {
-            if($msgC > $Total) { break; }
-            $line = fgets($fp,$this->BUFFER);
-            $line = $this->strip_clf($line);
-            if(ereg("^\.",$line))
-            {
-                $this->ERROR = "POP3 pop_list: " . _("Premature end of list");
-                return false;
-            }
-            list($thisMsg,$msgSize) = preg_split('/\s+/',$line);
-            settype($thisMsg,"integer");
-            if($thisMsg != $msgC)
-            {
-                $MsgArray[$msgC] = "deleted";
-            }
-            else
-            {
-                $MsgArray[$msgC] = $msgSize;
-            }
-        }
-        return $MsgArray;
-    }
-
-    function get ($msgNum) {
-        //  Retrieve the specified msg number. Returns an array
-        //  where each line of the msg is an array element.
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 get: " . _("No connection to server");
-            return false;
-        }
-
-        $this->update_timer();
-
-        $fp = $this->FP;
-        $buffer = $this->BUFFER;
-        $cmd = "RETR $msgNum";
-        $reply = $this->send_cmd($cmd);
-
-        if(!$this->is_ok($reply))
-        {
-            $this->ERROR = "POP3 get: " . _("Error ") . "[$reply]";
-            return false;
-        }
-
-        $count = 0;
-        $MsgArray = array();
-
-        $line = fgets($fp,$buffer);
-        while ( !ereg("^\.\r\n",$line))
-        {
-            if ( $line{0} == '.' ) { $line = substr($line,1); }
-            $MsgArray[$count] = $line;
-            $count++;
-            $line = fgets($fp,$buffer);
-            if(empty($line))    { break; }
-        }
-        return $MsgArray;
-    }
-
-    function last ( $type = "count" ) {
-        //  Returns the highest msg number in the mailbox.
-        //  returns -1 on error, 0+ on success, if type != count
-        //  results in a popstat() call (2 element array returned)
-
-        $last = -1;
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 last: " . _("No connection to server");
-            return $last;
-        }
-
-        $reply = $this->send_cmd("STAT");
-        if(!$this->is_ok($reply))
-        {
-            $this->ERROR = "POP3 last: " . _("Error ") . "[$reply]";
-            return $last;
-        }
-
-        $Vars = preg_split('/\s+/',$reply);
-        $count = $Vars[1];
-        $size = $Vars[2];
-        settype($count,"integer");
-        settype($size,"integer");
-        if($type != "count")
-        {
-            return array($count,$size);
-        }
-        return $count;
-    }
-
-    function reset () {
-        //  Resets the status of the remote server. This includes
-        //  resetting the status of ALL msgs to not be deleted.
-        //  This method automatically closes the connection to the server.
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 reset: " . _("No connection to server");
-            return false;
-        }
-        $reply = $this->send_cmd("RSET");
-        if(!$this->is_ok($reply))
-        {
-            //  The POP3 RSET command -never- gives a -ERR
-            //  response - if it ever does, something truely
-            //  wild is going on.
-
-            $this->ERROR = "POP3 reset: " . _("Error ") . "[$reply]";
-            @error_log("POP3 reset: ERROR [$reply]",0);
-        }
-        $this->quit();
-        return true;
-    }
-
-    function send_cmd ( $cmd = "" )
-    {
-        //  Sends a user defined command string to the
-        //  POP server and returns the results. Useful for
-        //  non-compliant or custom POP servers.
-        //  Do NOT includ the \r\n as part of your command
-        //  string - it will be appended automatically.
-
-        //  The return value is a standard fgets() call, which
-        //  will read up to $this->BUFFER bytes of data, until it
-        //  encounters a new line, or EOF, whichever happens first.
-
-        //  This method works best if $cmd responds with only
-        //  one line of data.
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 send_cmd: " . _("No connection to server");
-            return false;
-        }
-
-        if(empty($cmd))
-        {
-            $this->ERROR = "POP3 send_cmd: " . _("Empty command string");
-            return "";
-        }
-
-        $fp = $this->FP;
-        $buffer = $this->BUFFER;
-        $this->update_timer();
-        fwrite($fp,"$cmd\r\n");
-        $reply = fgets($fp,$buffer);
-        $reply = $this->strip_clf($reply);
-        if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
-        return $reply;
-    }
-
-    function quit() {
-        //  Closes the connection to the POP3 server, deleting
-        //  any msgs marked as deleted.
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 quit: " . _("connection does not exist");
-            return false;
-        }
-        $fp = $this->FP;
-        $cmd = "QUIT";
-        fwrite($fp,"$cmd\r\n");
-        $reply = fgets($fp,$this->BUFFER);
-        $reply = $this->strip_clf($reply);
-        if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
-        fclose($fp);
-        unset($this->FP);
-        return true;
-    }
-
-    function popstat () {
-        //  Returns an array of 2 elements. The number of undeleted
-        //  msgs in the mailbox, and the size of the mbox in octets.
-
-        $PopArray = $this->last("array");
-
-        if($PopArray == -1) { return false; }
-
-        if( (!$PopArray) or (empty($PopArray)) )
-        {
-            return false;
-        }
-        return $PopArray;
-    }
-
-    function uidl ($msgNum = "")
-    {
-        //  Returns the UIDL of the msg specified. If called with
-        //  no arguments, returns an associative array where each
-        //  undeleted msg num is a key, and the msg's uidl is the element
-        //  Array element 0 will contain the total number of msgs
-
-        if(!isset($this->FP)) {
-            $this->ERROR = "POP3 uidl: " . _("No connection to server");
-            return false;
-        }
-
-        $fp = $this->FP;
-        $buffer = $this->BUFFER;
-
-        if(!empty($msgNum)) {
-            $cmd = "UIDL $msgNum";
-            $reply = $this->send_cmd($cmd);
-            if(!$this->is_ok($reply))
-            {
-                $this->ERROR = "POP3 uidl: " . _("Error ") . "[$reply]";
-                return false;
-            }
-            list ($ok,$num,$myUidl) = preg_split('/\s+/',$reply);
-            return $myUidl;
-        } else {
-            $this->update_timer();
-
-            $UIDLArray = array();
-            $Total = $this->COUNT;
-            $UIDLArray[0] = $Total;
-
-            if ($Total < 1)
-            {
-                return $UIDLArray;
-            }
-            $cmd = "UIDL";
-            fwrite($fp, "UIDL\r\n");
-            $reply = fgets($fp, $buffer);
-            $reply = $this->strip_clf($reply);
-            if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
-            if(!$this->is_ok($reply))
-            {
-                $this->ERROR = "POP3 uidl: " . _("Error ") . "[$reply]";
-                return false;
-            }
-
-            $line = "";
-            $count = 1;
-            $line = fgets($fp,$buffer);
-            while ( !ereg("^\.\r\n",$line)) {
-                if(ereg("^\.\r\n",$line)) {
-                    break;
-                }
-                list ($msg,$msgUidl) = preg_split('/\s+/',$line);
-                $msgUidl = $this->strip_clf($msgUidl);
-                if($count == $msg) {
-                    $UIDLArray[$msg] = $msgUidl;
-                }
-                else
-                {
-                    $UIDLArray[$count] = 'deleted';
-                }
-                $count++;
-                $line = fgets($fp,$buffer);
-            }
-        }
-        return $UIDLArray;
-    }
-
-    function delete ($msgNum = "") {
-        //  Flags a specified msg as deleted. The msg will not
-        //  be deleted until a quit() method is called.
-
-        if(!isset($this->FP))
-        {
-            $this->ERROR = "POP3 delete: " . _("No connection to server");
-            return false;
-        }
-        if(empty($msgNum))
-        {
-            $this->ERROR = "POP3 delete: " . _("No msg number submitted");
-            return false;
-        }
-        $reply = $this->send_cmd("DELE $msgNum");
-        if(!$this->is_ok($reply))
-        {
-            $this->ERROR = "POP3 delete: " . _("Command failed ") . "[$reply]";
-            return false;
-        }
-        return true;
-    }
-
-    //  *********************************************************
-
-    //  The following methods are internal to the class.
-
-    function is_ok ($cmd = "") {
-        //  Return true or false on +OK or -ERR
-
-        if( empty($cmd) )
-            return false;
-        else
-            return( ereg ("^\+OK", $cmd ) );
-    }
-
-    function strip_clf ($text = "") {
-        // Strips \r\n from server responses
-
-        if(empty($text))
-            return $text;
-        else {
-            $stripped = str_replace("\r",'',$text);
-            $stripped = str_replace("\n",'',$stripped);
-            return $stripped;
-        }
-    }
-
-    function parse_banner ( $server_text ) {
-        $outside = true;
-        $banner = "";
-        $length = strlen($server_text);
-        for($count =0; $count < $length; $count++)
-        {
-            $digit = substr($server_text,$count,1);
-            if(!empty($digit))             {
-                if( (!$outside) && ($digit != '<') && ($digit != '>') )
-                {
-                    $banner .= $digit;
-                }
-                if ($digit == '<')
-                {
-                    $outside = false;
-                }
-                if($digit == '>')
-                {
-                    $outside = true;
-                }
-            }
-        }
-        $banner = $this->strip_clf($banner);    // Just in case
-        return "<$banner>";
-    }
-
-}   // End class
-?>
+<?php
+/**
+ * mail_fetch/setup.php
+ *
+ * @package SquirrelMail
+ *
+ * @copyright (c) 1999-2006 The SquirrelMail Project Team
+ *
+ * @copyright (c) 1999 CDI (cdi@thewebmasters.net) All Rights Reserved
+ * Modified by Philippe Mingo 2001 mingo@rotedic.com
+ * An RFC 1939 compliant wrapper class for the POP3 protocol.
+ *
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * pop3 class
+ *
+ * $Id: class-pop3.php 9503 2008-11-03 23:25:11Z ryan $
+ */
+
+class POP3 {
+    var $ERROR      = '';       //  Error string.
+
+    var $TIMEOUT    = 60;       //  Default timeout before giving up on a
+                                //  network operation.
+
+    var $COUNT      = -1;       //  Mailbox msg count
+
+    var $BUFFER     = 512;      //  Socket buffer for socket fgets() calls.
+                                //  Per RFC 1939 the returned line a POP3
+                                //  server can send is 512 bytes.
+
+    var $FP         = '';       //  The connection to the server's
+                                //  file descriptor
+
+    var $MAILSERVER = '';       // Set this to hard code the server name
+
+    var $DEBUG      = FALSE;    // set to true to echo pop3
+                                // commands and responses to error_log
+                                // this WILL log passwords!
+
+    var $BANNER     = '';       //  Holds the banner returned by the
+                                //  pop server - used for apop()
+
+    var $ALLOWAPOP  = FALSE;    //  Allow or disallow apop()
+                                //  This must be set to true
+                                //  manually
+
+    function POP3 ( $server = '', $timeout = '' ) {
+        settype($this->BUFFER,"integer");
+        if( !empty($server) ) {
+            // Do not allow programs to alter MAILSERVER
+            // if it is already specified. They can get around
+            // this if they -really- want to, so don't count on it.
+            if(empty($this->MAILSERVER))
+                $this->MAILSERVER = $server;
+        }
+        if(!empty($timeout)) {
+            settype($timeout,"integer");
+            $this->TIMEOUT = $timeout;
+            if (!ini_get('safe_mode'))
+                set_time_limit($timeout);
+        }
+        return true;
+    }
+
+    function update_timer () {
+        if (!ini_get('safe_mode'))
+            set_time_limit($this->TIMEOUT);
+        return true;
+    }
+
+    function connect ($server, $port = 110)  {
+        //  Opens a socket to the specified server. Unless overridden,
+        //  port defaults to 110. Returns true on success, false on fail
+
+        // If MAILSERVER is set, override $server with it's value
+
+	if (!isset($port) || !$port) {$port = 110;}
+        if(!empty($this->MAILSERVER))
+            $server = $this->MAILSERVER;
+
+        if(empty($server)){
+            $this->ERROR = "POP3 connect: " . _("No server specified");
+            unset($this->FP);
+            return false;
+        }
+
+        $fp = @fsockopen("$server", $port, $errno, $errstr);
+
+        if(!$fp) {
+            $this->ERROR = "POP3 connect: " . _("Error ") . "[$errno] [$errstr]";
+            unset($this->FP);
+            return false;
+        }
+
+        socket_set_blocking($fp,-1);
+        $this->update_timer();
+        $reply = fgets($fp,$this->BUFFER);
+        $reply = $this->strip_clf($reply);
+        if($this->DEBUG)
+            error_log("POP3 SEND [connect: $server] GOT [$reply]",0);
+        if(!$this->is_ok($reply)) {
+            $this->ERROR = "POP3 connect: " . _("Error ") . "[$reply]";
+            unset($this->FP);
+            return false;
+        }
+        $this->FP = $fp;
+        $this->BANNER = $this->parse_banner($reply);
+        return true;
+    }
+
+    function user ($user = "") {
+        // Sends the USER command, returns true or false
+
+        if( empty($user) ) {
+            $this->ERROR = "POP3 user: " . _("no login ID submitted");
+            return false;
+        } elseif(!isset($this->FP)) {
+            $this->ERROR = "POP3 user: " . _("connection not established");
+            return false;
+        } else {
+            $reply = $this->send_cmd("USER $user");
+            if(!$this->is_ok($reply)) {
+                $this->ERROR = "POP3 user: " . _("Error ") . "[$reply]";
+                return false;
+            } else
+                return true;
+        }
+    }
+
+    function pass ($pass = "")     {
+        // Sends the PASS command, returns # of msgs in mailbox,
+        // returns false (undef) on Auth failure
+
+        if(empty($pass)) {
+            $this->ERROR = "POP3 pass: " . _("No password submitted");
+            return false;
+        } elseif(!isset($this->FP)) {
+            $this->ERROR = "POP3 pass: " . _("connection not established");
+            return false;
+        } else {
+            $reply = $this->send_cmd("PASS $pass");
+            if(!$this->is_ok($reply)) {
+                $this->ERROR = "POP3 pass: " . _("Authentication failed") . " [$reply]";
+                $this->quit();
+                return false;
+            } else {
+                //  Auth successful.
+                $count = $this->last("count");
+                $this->COUNT = $count;
+                return $count;
+            }
+        }
+    }
+
+    function apop ($login,$pass) {
+        //  Attempts an APOP login. If this fails, it'll
+        //  try a standard login. YOUR SERVER MUST SUPPORT
+        //  THE USE OF THE APOP COMMAND!
+        //  (apop is optional per rfc1939)
+
+        if(!isset($this->FP)) {
+            $this->ERROR = "POP3 apop: " . _("No connection to server");
+            return false;
+        } elseif(!$this->ALLOWAPOP) {
+            $retVal = $this->login($login,$pass);
+            return $retVal;
+        } elseif(empty($login)) {
+            $this->ERROR = "POP3 apop: " . _("No login ID submitted");
+            return false;
+        } elseif(empty($pass)) {
+            $this->ERROR = "POP3 apop: " . _("No password submitted");
+            return false;
+        } else {
+            $banner = $this->BANNER;
+            if( (!$banner) or (empty($banner)) ) {
+                $this->ERROR = "POP3 apop: " . _("No server banner") . ' - ' . _("abort");
+                $retVal = $this->login($login,$pass);
+                return $retVal;
+            } else {
+                $AuthString = $banner;
+                $AuthString .= $pass;
+                $APOPString = md5($AuthString);
+                $cmd = "APOP $login $APOPString";
+                $reply = $this->send_cmd($cmd);
+                if(!$this->is_ok($reply)) {
+                    $this->ERROR = "POP3 apop: " . _("apop authentication failed") . ' - ' . _("abort");
+                    $retVal = $this->login($login,$pass);
+                    return $retVal;
+                } else {
+                    //  Auth successful.
+                    $count = $this->last("count");
+                    $this->COUNT = $count;
+                    return $count;
+                }
+            }
+        }
+    }
+
+    function login ($login = "", $pass = "") {
+        // Sends both user and pass. Returns # of msgs in mailbox or
+        // false on failure (or -1, if the error occurs while getting
+        // the number of messages.)
+
+        if( !isset($this->FP) ) {
+            $this->ERROR = "POP3 login: " . _("No connection to server");
+            return false;
+        } else {
+            $fp = $this->FP;
+            if( !$this->user( $login ) ) {
+                //  Preserve the error generated by user()
+                return false;
+            } else {
+                $count = $this->pass($pass);
+                if( (!$count) || ($count == -1) ) {
+                    //  Preserve the error generated by last() and pass()
+                    return false;
+                } else
+                    return $count;
+            }
+        }
+    }
+
+    function top ($msgNum, $numLines = "0") {
+        //  Gets the header and first $numLines of the msg body
+        //  returns data in an array with each returned line being
+        //  an array element. If $numLines is empty, returns
+        //  only the header information, and none of the body.
+
+        if(!isset($this->FP)) {
+            $this->ERROR = "POP3 top: " . _("No connection to server");
+            return false;
+        }
+        $this->update_timer();
+
+        $fp = $this->FP;
+        $buffer = $this->BUFFER;
+        $cmd = "TOP $msgNum $numLines";
+        fwrite($fp, "TOP $msgNum $numLines\r\n");
+        $reply = fgets($fp, $buffer);
+        $reply = $this->strip_clf($reply);
+        if($this->DEBUG) {
+            @error_log("POP3 SEND [$cmd] GOT [$reply]",0);
+        }
+        if(!$this->is_ok($reply))
+        {
+            $this->ERROR = "POP3 top: " . _("Error ") . "[$reply]";
+            return false;
+        }
+
+        $count = 0;
+        $MsgArray = array();
+
+        $line = fgets($fp,$buffer);
+        while ( !ereg("^\.\r\n",$line))
+        {
+            $MsgArray[$count] = $line;
+            $count++;
+            $line = fgets($fp,$buffer);
+            if(empty($line))    { break; }
+        }
+
+        return $MsgArray;
+    }
+
+    function pop_list ($msgNum = "") {
+        //  If called with an argument, returns that msgs' size in octets
+        //  No argument returns an associative array of undeleted
+        //  msg numbers and their sizes in octets
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 pop_list: " . _("No connection to server");
+            return false;
+        }
+        $fp = $this->FP;
+        $Total = $this->COUNT;
+        if( (!$Total) or ($Total == -1) )
+        {
+            return false;
+        }
+        if($Total == 0)
+        {
+            return array("0","0");
+            // return -1;   // mailbox empty
+        }
+
+        $this->update_timer();
+
+        if(!empty($msgNum))
+        {
+            $cmd = "LIST $msgNum";
+            fwrite($fp,"$cmd\r\n");
+            $reply = fgets($fp,$this->BUFFER);
+            $reply = $this->strip_clf($reply);
+            if($this->DEBUG) {
+                @error_log("POP3 SEND [$cmd] GOT [$reply]",0);
+            }
+            if(!$this->is_ok($reply))
+            {
+                $this->ERROR = "POP3 pop_list: " . _("Error ") . "[$reply]";
+                return false;
+            }
+            list($junk,$num,$size) = preg_split('/\s+/',$reply);
+            return $size;
+        }
+        $cmd = "LIST";
+        $reply = $this->send_cmd($cmd);
+        if(!$this->is_ok($reply))
+        {
+            $reply = $this->strip_clf($reply);
+            $this->ERROR = "POP3 pop_list: " . _("Error ") .  "[$reply]";
+            return false;
+        }
+        $MsgArray = array();
+        $MsgArray[0] = $Total;
+        for($msgC=1;$msgC <= $Total; $msgC++)
+        {
+            if($msgC > $Total) { break; }
+            $line = fgets($fp,$this->BUFFER);
+            $line = $this->strip_clf($line);
+            if(ereg("^\.",$line))
+            {
+                $this->ERROR = "POP3 pop_list: " . _("Premature end of list");
+                return false;
+            }
+            list($thisMsg,$msgSize) = preg_split('/\s+/',$line);
+            settype($thisMsg,"integer");
+            if($thisMsg != $msgC)
+            {
+                $MsgArray[$msgC] = "deleted";
+            }
+            else
+            {
+                $MsgArray[$msgC] = $msgSize;
+            }
+        }
+        return $MsgArray;
+    }
+
+    function get ($msgNum) {
+        //  Retrieve the specified msg number. Returns an array
+        //  where each line of the msg is an array element.
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 get: " . _("No connection to server");
+            return false;
+        }
+
+        $this->update_timer();
+
+        $fp = $this->FP;
+        $buffer = $this->BUFFER;
+        $cmd = "RETR $msgNum";
+        $reply = $this->send_cmd($cmd);
+
+        if(!$this->is_ok($reply))
+        {
+            $this->ERROR = "POP3 get: " . _("Error ") . "[$reply]";
+            return false;
+        }
+
+        $count = 0;
+        $MsgArray = array();
+
+        $line = fgets($fp,$buffer);
+        while ( !ereg("^\.\r\n",$line))
+        {
+            if ( $line{0} == '.' ) { $line = substr($line,1); }
+            $MsgArray[$count] = $line;
+            $count++;
+            $line = fgets($fp,$buffer);
+            if(empty($line))    { break; }
+        }
+        return $MsgArray;
+    }
+
+    function last ( $type = "count" ) {
+        //  Returns the highest msg number in the mailbox.
+        //  returns -1 on error, 0+ on success, if type != count
+        //  results in a popstat() call (2 element array returned)
+
+        $last = -1;
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 last: " . _("No connection to server");
+            return $last;
+        }
+
+        $reply = $this->send_cmd("STAT");
+        if(!$this->is_ok($reply))
+        {
+            $this->ERROR = "POP3 last: " . _("Error ") . "[$reply]";
+            return $last;
+        }
+
+        $Vars = preg_split('/\s+/',$reply);
+        $count = $Vars[1];
+        $size = $Vars[2];
+        settype($count,"integer");
+        settype($size,"integer");
+        if($type != "count")
+        {
+            return array($count,$size);
+        }
+        return $count;
+    }
+
+    function reset () {
+        //  Resets the status of the remote server. This includes
+        //  resetting the status of ALL msgs to not be deleted.
+        //  This method automatically closes the connection to the server.
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 reset: " . _("No connection to server");
+            return false;
+        }
+        $reply = $this->send_cmd("RSET");
+        if(!$this->is_ok($reply))
+        {
+            //  The POP3 RSET command -never- gives a -ERR
+            //  response - if it ever does, something truely
+            //  wild is going on.
+
+            $this->ERROR = "POP3 reset: " . _("Error ") . "[$reply]";
+            @error_log("POP3 reset: ERROR [$reply]",0);
+        }
+        $this->quit();
+        return true;
+    }
+
+    function send_cmd ( $cmd = "" )
+    {
+        //  Sends a user defined command string to the
+        //  POP server and returns the results. Useful for
+        //  non-compliant or custom POP servers.
+        //  Do NOT includ the \r\n as part of your command
+        //  string - it will be appended automatically.
+
+        //  The return value is a standard fgets() call, which
+        //  will read up to $this->BUFFER bytes of data, until it
+        //  encounters a new line, or EOF, whichever happens first.
+
+        //  This method works best if $cmd responds with only
+        //  one line of data.
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 send_cmd: " . _("No connection to server");
+            return false;
+        }
+
+        if(empty($cmd))
+        {
+            $this->ERROR = "POP3 send_cmd: " . _("Empty command string");
+            return "";
+        }
+
+        $fp = $this->FP;
+        $buffer = $this->BUFFER;
+        $this->update_timer();
+        fwrite($fp,"$cmd\r\n");
+        $reply = fgets($fp,$buffer);
+        $reply = $this->strip_clf($reply);
+        if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
+        return $reply;
+    }
+
+    function quit() {
+        //  Closes the connection to the POP3 server, deleting
+        //  any msgs marked as deleted.
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 quit: " . _("connection does not exist");
+            return false;
+        }
+        $fp = $this->FP;
+        $cmd = "QUIT";
+        fwrite($fp,"$cmd\r\n");
+        $reply = fgets($fp,$this->BUFFER);
+        $reply = $this->strip_clf($reply);
+        if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
+        fclose($fp);
+        unset($this->FP);
+        return true;
+    }
+
+    function popstat () {
+        //  Returns an array of 2 elements. The number of undeleted
+        //  msgs in the mailbox, and the size of the mbox in octets.
+
+        $PopArray = $this->last("array");
+
+        if($PopArray == -1) { return false; }
+
+        if( (!$PopArray) or (empty($PopArray)) )
+        {
+            return false;
+        }
+        return $PopArray;
+    }
+
+    function uidl ($msgNum = "")
+    {
+        //  Returns the UIDL of the msg specified. If called with
+        //  no arguments, returns an associative array where each
+        //  undeleted msg num is a key, and the msg's uidl is the element
+        //  Array element 0 will contain the total number of msgs
+
+        if(!isset($this->FP)) {
+            $this->ERROR = "POP3 uidl: " . _("No connection to server");
+            return false;
+        }
+
+        $fp = $this->FP;
+        $buffer = $this->BUFFER;
+
+        if(!empty($msgNum)) {
+            $cmd = "UIDL $msgNum";
+            $reply = $this->send_cmd($cmd);
+            if(!$this->is_ok($reply))
+            {
+                $this->ERROR = "POP3 uidl: " . _("Error ") . "[$reply]";
+                return false;
+            }
+            list ($ok,$num,$myUidl) = preg_split('/\s+/',$reply);
+            return $myUidl;
+        } else {
+            $this->update_timer();
+
+            $UIDLArray = array();
+            $Total = $this->COUNT;
+            $UIDLArray[0] = $Total;
+
+            if ($Total < 1)
+            {
+                return $UIDLArray;
+            }
+            $cmd = "UIDL";
+            fwrite($fp, "UIDL\r\n");
+            $reply = fgets($fp, $buffer);
+            $reply = $this->strip_clf($reply);
+            if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
+            if(!$this->is_ok($reply))
+            {
+                $this->ERROR = "POP3 uidl: " . _("Error ") . "[$reply]";
+                return false;
+            }
+
+            $line = "";
+            $count = 1;
+            $line = fgets($fp,$buffer);
+            while ( !ereg("^\.\r\n",$line)) {
+                if(ereg("^\.\r\n",$line)) {
+                    break;
+                }
+                list ($msg,$msgUidl) = preg_split('/\s+/',$line);
+                $msgUidl = $this->strip_clf($msgUidl);
+                if($count == $msg) {
+                    $UIDLArray[$msg] = $msgUidl;
+                }
+                else
+                {
+                    $UIDLArray[$count] = 'deleted';
+                }
+                $count++;
+                $line = fgets($fp,$buffer);
+            }
+        }
+        return $UIDLArray;
+    }
+
+    function delete ($msgNum = "") {
+        //  Flags a specified msg as deleted. The msg will not
+        //  be deleted until a quit() method is called.
+
+        if(!isset($this->FP))
+        {
+            $this->ERROR = "POP3 delete: " . _("No connection to server");
+            return false;
+        }
+        if(empty($msgNum))
+        {
+            $this->ERROR = "POP3 delete: " . _("No msg number submitted");
+            return false;
+        }
+        $reply = $this->send_cmd("DELE $msgNum");
+        if(!$this->is_ok($reply))
+        {
+            $this->ERROR = "POP3 delete: " . _("Command failed ") . "[$reply]";
+            return false;
+        }
+        return true;
+    }
+
+    //  *********************************************************
+
+    //  The following methods are internal to the class.
+
+    function is_ok ($cmd = "") {
+        //  Return true or false on +OK or -ERR
+
+        if( empty($cmd) )
+            return false;
+        else
+            return( ereg ("^\+OK", $cmd ) );
+    }
+
+    function strip_clf ($text = "") {
+        // Strips \r\n from server responses
+
+        if(empty($text))
+            return $text;
+        else {
+            $stripped = str_replace("\r",'',$text);
+            $stripped = str_replace("\n",'',$stripped);
+            return $stripped;
+        }
+    }
+
+    function parse_banner ( $server_text ) {
+        $outside = true;
+        $banner = "";
+        $length = strlen($server_text);
+        for($count =0; $count < $length; $count++)
+        {
+            $digit = substr($server_text,$count,1);
+            if(!empty($digit))             {
+                if( (!$outside) && ($digit != '<') && ($digit != '>') )
+                {
+                    $banner .= $digit;
+                }
+                if ($digit == '<')
+                {
+                    $outside = false;
+                }
+                if($digit == '>')
+                {
+                    $outside = true;
+                }
+            }
+        }
+        $banner = $this->strip_clf($banner);    // Just in case
+        return "<$banner>";
+    }
+
+}   // End class
+?>