ID: 19421
Comment by: cosas at minovela dot com
Reported By: taco at osisoft dot nl
Status: Bogus
Bug Type: Class/Object related
Operating System: Red Hat 7.1
PHP Version: 4.2.2
New Comment:
newer versions of php has a lot of problems with sockets...
Previous Comments:
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[2002-09-19 15:40:32] taco at osisoft dot nl
I deliberatly commented that line. The code should fetch the welcome
messages, but when I uncomment it, the stalling will occure!
I know the POP3 protocol, that's not the issue here ;-). Issue is that
the fgets stalls when using it in a class structure or/and using class
variables.
I've got it all working now, but without using a class. After I
stripped of the TPOP3Mail class it worked immediatly.
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[2002-09-19 04:54:21] wez@php.net
Try uncommenting the "Catching the servers welcome messages" line of
code...
This is not a support forum; you should really read the
POP3 protocol spec.
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[2002-09-19 01:37:50] taco at osisoft dot nl
I can run this example (using my own pop3 account). Unfortunatly you
will see something like this:
>> USER xxxx
<< +OK Welcome to this POP3 server
>> PASS xxxx
<< +OK User is welcome
You have .... message(s)
As you see the returning messages is always one message behind. With
the commented line I wanted to get the welcome message after
connection, before authentication. If I therefor uncomment that line,
it will stall.
I have tried several things, like using a local variable instead of a
class variable. That works better, as the title shows, but it still
works buggy. often it's alright, but sometimes it keeps stalling.
Currently I use this functionality without a class and than it works
fine.
<?
class TPOP3Mail
{
var $server;
var $port;
var $user;
var $password;
var $socket;
var $error;
function TPOP3Mail($server, $port, $user, $pwd)
{
$this->server = $server;
$this->port = $port;
$this->user = $user;
$this->password = $pwd;
}
function Connect()
{
$this->socket = fsockopen($this->server, $this->port, $errno,
$errstr, 3);
if($this->socket <= 0)
{
$this->error = "Could not connect to $this->server on port
$this->port. Connection Error $errno. Reason: $errstr";
return 0;
}
$this->error = "";
// fgets($this->socket, 1024); //Catching server's welcome messages
print ">>: USER $this->user<BR>\n";
fwrite($this->socket, "USER $this->user\r\n");
$result = fgets($this->socket, 1024);
print "<<: $result<BR>\n";
if (substr($result, 0, 3) == "+OK")
{
print ">>: PASS xxxx<BR>\n";
fwrite ($this->socket, "PASS $this->password\r\n");
$result = fgets($this->socket, 1024);
print "<<: $result<BR>\n";
if (substr($result, 0, 3) != "+OK")
$this->error = "Error while logging on ($result)";
}
else $this->error = "Error while logging on ($result)";
if ($this->error != "") return 0;
return $this->socket;
}
function ShowMail($nr)
{
fwrite ($this->socket, "RETR $nr\r\n");
$response = fgets ($this->socket, 1024);
$i = 4;
$s = ""; //stores byte size of the message
while ($response[$i] != " ") $s .= $response[$i++];
$response = fread($this->socket, $s);
fgets ($this->socket, 1024);
return $response;
}
function MailCount()
{
fwrite ($this->socket, "STAT\r\n");
$response = fgets ($this->socket, 1024);
$i = 4;
$s = "";
while ($response[$i] != " ") $s .= $response[$i++];
return $s;
}
}
//Please use an pop3 account in the following line.
$webmail = new TPOP3Mail("server", "110", "user", "pwd");
if (!$webmail->Connect()) print $webmail->error;
print "You have " . $webmail->MailCount() . "
message(s).<BR><BR>\n";
print nl2br($webmail->ShowMail(1));
?>
------------------------------------------------------------------------
[2002-09-18 19:21:58] sniper@php.net
Please provide a short but complete example script which shows what
you're trying to do.
------------------------------------------------------------------------
[2002-09-15 16:35:22] taco at osisoft dot nl
I made a class which connects to the POP3 server at localhost. I used
fsockopen to connect to the server. When I use a local variable
("$socket") then it works allright. When I store the resource in a
class variable ($this->socket) the script will stall on fget*.
Work around for me: I want to use the socket resource in other member
functions. After the connection is initialized a class variable
references to the local variable ($this->socket =& $socket). In the
member function I first must make a local variable and refer it to the
class variable ($socket =& $this->socket). I can't use $this->socket
directly.
So in short: I can't use a class variable with fwrite and fgets, but
instead I must use local variables.
(Hope may description was clear.)
Greetings from Holland
Taco Jan Osinga
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Edit this bug report at http://bugs.php.net/?id=19421&edit=1