Download script

[random_qwerty]

Hi,

I have been hitting my head against a wall for ages. I am trying to make a script for downloading files.

 

It was working, until i guess i changed something(url decoding the filename), and I can't see how i can fix the script.

 

The Problem:

Although it can see the file, and it opens it etc, it will break the download at exactly 4,096 bytes.

 

>_< Any thoughts?

 

If you need any clarifications on the code, yes I can see it is quite messy and i don't comment much, I will begrudgingly try and help make it clearer for you.

 

and also, what are your thoughts on my use of include to handle mysql db connections?

 

$ep_number = $_GET[f];
//relates to a db entry for episode number
$series = $_GET[z];
//relates to a db entry for series number
$user = $_SESSION['MM_Username'];

include('Connections/db_vars.php');
include('Connections/db_con.php');

$dl_details = mysql_query("SELECT * FROM downloads WHERE file_id = $ep_number && series_id = $series");
$dl_details = mysql_fetch_assoc($dl_details);

mysql_close($con);

$last_dl_date = date('H:i') . ' on ' . date('d-m-Y');
$last_dl = $dl_details['file_name'];
$last_dl_size = $dl_details['size'];
$dl_size = $dl_details['size'];
$dl_directory = urldecode($dl_details['directory']);
$file_dl = urldecode($dl_details['file_name']);

header("Cache-Control: no-cache");
header("Expires: -1");
header("Content-disposition: attachment; filename=\"$file_dl\"");
header("Content-type: application/octet-stream");
header("Content-length: $dl_size");

// set the download rate limit (=> 100 = 100 kb/s)
$download_rate = 200; 

if(file_exists($dl_directory) && is_file($dl_directory)) {

    // flush content
    flush();    
    // open file stream
    $file_op = fopen($dl_directory, "rb");    
    while(!feof($file_op)) {

        // send the current file part to the browser
        print fread($file_op, round($download_rate * 1024));    

        // flush the content to the browser
        set_time_limit(0);
	ob_flush();
	flush();

        // sleep one second
        sleep(1);    
    }    

    // close file stream
    fclose($file_op);

include('Connections/db_vars.php');
include('Connections/db_con.php');

mysql_query("UPDATE users SET LAST_DL = '$last_dl' , LAST_DL_DATE = '$last_dl_date' , TOTAL_AMOUNT_DL = TOTAL_AMOUNT_DL + '$last_dl_size' WHERE USERNAME = '$user'");
mysql_close($con);
exit;
}
else {
    die('Error: The file '.$file.' does not exist!');
}

 

[MadTechie]

3 things to look at

 

#1 check the files on the server

#2 is $dl_size correct ?

#3 is the the size 4,096 bytes. that fails or the time it takes to get to 4,096 bytes ?

 

as this could well be a a timeout issue!

 

try adding set_time_limit(0);

[random_qwerty]

3 things to look at

 

#1 check the files on the server

#2 is $dl_size correct ?

#3 is the the size 4,096 bytes. that fails or the time it takes to get to 4,096 bytes ?

 

as this could well be a a timeout issue!

 

try adding set_time_limit(0);

 

1. that was one of the first steps before i came here

2. that was one of the second steps before i came here

3. the size is always 4,096 bytes, (unless it was smaller than that ofcourse) I don't understand how a file size can equal time ... so I cant answer the second part of that

4. another thing i did before coming. see line 88

 

 

MOAR help please

[DarkSuperHero]

Question for MODs/Guru's/Pro's

 

Is there such a thing a a memory limit on this? would memory limit even apply to what OP is doing in his script?

[Masna]

Question for MODs/Guru's/Pro's

 

Is there such a thing a a memory limit on this? would memory limit even apply to what OP is doing in his script?

 

Well, there's a memory limit on everything: especially when dealing with digital information.

 

Most browsers probably obtain that limit from the header sent here:

 

header("Content-length: $dl_size");

 

As for whether or not this is the issue in this particular case: I don't know.

[random_qwerty]

Question for MODs/Guru's/Pro's

 

Is there such a thing a a memory limit on this? would memory limit even apply to what OP is doing in his script?

 

Well, there's a memory limit on everything: especially when dealing with digital information.

 

Most browsers probably obtain that limit from the header sent here:

 

header("Content-length: $dl_size");

 

As for whether or not this is the issue in this particular case: I don't know.

 

i guess ill just continue playing around with it

 

thanks for giving me a general area to target first >_<

 

i hope someone can just solve it for me though >_<

[MadTechie]

When i say about the time i refer to the time it takes to download

 

IE

if it takes you 15 seconds to download 2MB

and 30Seconds to download 4MB

but fails at to download anything larger it maybe timing out after 30seconds and not files over 4MB

 

do you have this online at all ?

 

also check the server logs

[random_qwerty]

When i say about the time i refer to the time it takes to download

 

IE

if it takes you 15 seconds to download 2MB

and 30Seconds to download 4MB

but fails at to download anything larger it maybe timing out after 30seconds and not files over 4MB

 

do you have this online at all ?

 

also check the server logs

 

its too fast to count, a few secs at most. the variable is correct for the file size, but i will do more testing there to confirm.

 

it never fails, it just breaks the download at 4kb. im with godaddy, so unfortunately i can't find their logs >_<

 

i use a xamp devlopment environment for hosting while i test

[MadTechie]

try a hard coded version,

this works fine on my WAMPSERVER 5

<?php
$dl_details['directory'] = "i:/"; //update
$dl_details['file_name'] = "activator.iso"; //update

$dl_details['size'] =filesize($dl_details['directory'].$dl_details['file_name']);

$last_dl_date = date('H:i') . ' on ' . date('d-m-Y');
$last_dl = $dl_details['file_name'];
$last_dl_size = $dl_details['size'];
$dl_size = $dl_details['size'];

$dl_directory = urldecode($dl_details['directory']);
$file_dl = urldecode($dl_details['file_name']);

$dl_directory .= $dl_details['file_name'];

header("Cache-Control: no-cache");
header("Expires: -1");
header("Content-disposition: attachment; filename=\"$file_dl\"");
header("Content-type: application/octet-stream");
header("Content-length: $dl_size");

// set the download rate limit (=> 100 = 100 kb/s)
$download_rate = 200;

if(file_exists($dl_directory) && is_file($dl_directory)) {
     // flush content
    flush();   
    // open file stream
    $file_op = fopen($dl_directory, "rb");   
    while(!feof($file_op)) {

        // send the current file part to the browser
        print fread($file_op, round($download_rate * 1024));   

        // flush the content to the browser
        set_time_limit(0);
      ob_flush();
      flush();

        // sleep one second
        sleep(1);   
    }   

    // close file stream
    fclose($file_op);

exit;
}else{
    die('Error: The file '.$dl_directory.' does not exist!');
}

?>