681 lines
21 KiB
PHP
681 lines
21 KiB
PHP
<?php
|
|
|
|
/**
|
|
* mail_fetch/setup.php
|
|
*
|
|
* Copyright (c) 1999-2002 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 {
|
|
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 $RFC1939 = TRUE; // Set by noop(). See rfc1939.txt
|
|
//
|
|
|
|
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 = $timeout;
|
|
set_time_limit($timeout);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function update_timer () {
|
|
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 $server with it's value
|
|
|
|
if(!empty($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);
|
|
$this->RFC1939 = $this->noop();
|
|
if($this->RFC1939) {
|
|
$this->ERROR = _("POP3: premature NOOP OK, NOT an RFC 1939 Compliant server");
|
|
$this->quit();
|
|
return false;
|
|
} else
|
|
return true;
|
|
}
|
|
|
|
function noop () {
|
|
|
|
if(!isset($this->FP)) {
|
|
$this->ERROR = _("POP3 noop:") . ' ' . _("No connection to server");
|
|
return false;
|
|
} else {
|
|
$cmd = "NOOP";
|
|
$reply = $this->send_cmd( $cmd );
|
|
return( $this->is_ok( $reply ) );
|
|
}
|
|
}
|
|
|
|
function user ($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;
|
|
$this->RFC1939 = $this->noop();
|
|
if(!$this->RFC1939) {
|
|
$this->ERROR = _("POP3 pass:") . ' ' . _("NOOP failed. Server not RFC 1939 compliant");
|
|
$this->quit();
|
|
return false;
|
|
} else
|
|
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;
|
|
$this->RFC1939 = $this->noop();
|
|
if(!$this->RFC1939) {
|
|
$this->ERROR = _("POP3 apop:") . ' ' . _("NOOP failed. Server not RFC 1939 compliant");
|
|
$this->quit();
|
|
return false;
|
|
} else
|
|
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,$size) = explode(" ",$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,$msgSize) = explode(" ",$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))
|
|
{
|
|
$MsgArray[$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;
|
|
}
|
|
|
|
$Vars = explode(" ",$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,$myUidl) = explode(" ",$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,$msgUidl) = explode(" ",$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
|
|
|
|
?>
|