Please help me with Socket issue :-(

sixii

I am writing a Usenet (NNTP) Class.

I'm connecting to the NNTP server using fsockopen() and retrieving the header info by simply sending:


    // Send HEAD command to server
    fputs($this -> pointer, "HEAD $message_id\n");

    // Get first line of response to check response code
    $tmp = split(" ", fgets($this -> pointer));

    // If response code is 221 (article found), continue

    If ($tmp[0] == "221") {

            // Retrieve line by line, until end of output
            while($buffer != ".\r\n") {
            $buffer = fgets($this -> pointer);

            // Store lines in array
            $data[] = $buffer;
    }

That works.

The problem I have is with the BODY of the Usenet Article. Since I am indexing BINARY articles, I only want the first 200 (or so) characters of the Article Body which gives me info about the filename, size, etc.

        // Send BODY command to server  

        fputs($this -> pointer, "body $message_id\n");

    while($buffer !=".\r\n") {

           $buffer = fgets($this -> pointer);
           echo $buffer;
   }

This code streams the entire body (3000 lines!!!)... I only need the first 2 lines of characters... how can I LIMIT this?

sneakyimp

fgets takes a second optional argument that lets you specify how much data you want:

http://us2.php.net/manual/en/function.fgets.php

i'm not sure, but maybe something like this:

// Send BODY command to server   

        fputs($this -> pointer, "body $message_id\n"); 

    while($buffer !=".\r\n") { 

           $buffer = fgets($this -> pointer, 200); 
           echo $buffer; 
   }

sneakyimp

actually, it's the while statement that's the problem. maybe just try this:

// Send BODY command to server    

        fputs($this -> pointer, "body $message_id\n");  

    $buffer = fgets($this -> pointer, 200);  
    echo $buffer;

PHPMagician

As long as 2 lines exist, this should return 2 lines:

<?php
for ($i=0; $i < 2; $i++) {
    $buffer.=fgets($this->pointer);
}
?>

Though, read the documentation:

Reading ends when length - 1 bytes have been read, on a newline (which is included in the return value), or on EOF (whichever comes first). If no length is specified, the length defaults to 1k, or 1024 bytes.

So if no length is found, and new line is found with the first 1024 bytes it will simply stop there. Whether or not this is the behaviour you want I do not know.

Good Luck