UPLOAD Corrupted....

[mattersolutions]

We've recently built a new box with the following specs.

RHEL 3, Apache 2.0.46, PHP 5.1.1

The problem is that the upload is being corrupted by PHP or apache during the upload. To test it we uploaded this...

1this is a test this is a test this is a test this is a test
2this is a test this is a test
3this is a test this is a test this is a test this is a test this is a test this is a test
4this is a test this is a test this is a test this is a test
5this is a test this is a test
6this is a test this is a test this is a test this is a test this is a test this is a test
7this is a test this is a test this is a test this is a test
8this is a test this is a test
9this is a test this is a test this is a test this is a test this is a test this is a test
10this is a test this is a test this is a test this is a test
11this is a test this is a test
12this is a test this is a test this is a test this is a test this is a test this is a test
13this is a test this is a test this is a test this is a test
14this is a test this is a test
15this is a test this is a test this is a test this is a test this is a test this is a test
16this is a test this is a test this is a test this is a test
17this is a test this is a test
18this is a test this is a test this is a test this is a test this is a test this is a test
19this is a test this is a test this is a test this is a test
20this is a test this is a test
21this is a test this is a test this is a test this is a test this is a test this is a test
22this is a test this is a test this is a test this is a test
23this is a test this is a test
24this is a test this is a test this is a test this is a test this is a test this is a test
25this is a test this is a test this is a test this is a test
26this is a test this is a test
27this is a test this is a test this is a test this is a test this is a test this is a test
28this is a test this is a test this is a test this is a test
29this is a test this is a test
30this is a test this is a test this is a test this is a test this is a test this is a test
31this is a test this is a test this is a test this is a test
32this is a test this is a test
33this is a test this is a test this is a test this is a test this is a test this is a test
34this is a test this is a test this is a test this is a test
35this is a test this is a test
.... and so on for 2897kb

and when it uploads the first 20 lines are shown twice at the top of the file, there is this daft header set and the file size jumps from 2897kb to 5793kb

1this is a test this is a test this is a test this is a test
2this is a test this is a test
3this is a test this is a test this is a test this is a test this is a test this is a test
4this is a test this is a test this is a test this is a test
5this is a test this is a test
6this is a test this is a test this is a test this is a test this is a test this is a test
7this is a test this is a test this is a test this is a test
8this is a test this is a test
9this is a test this is a test this is a test this is a test this is a test this is a test
10this is a test this is a test this is a test this is a test
11this is a test this is a test
12this is a test this is a test this is a test this is a test this is a test this is a test
13this is a test this is a test this is a test this is a test
14this is a test this is a test
15this is a test this is a test this is a test this is a test this is a test this is a test
16this is a test this is a test this is a test this is a test
17this is a test this is a test
18this is a test this is a test this is a test this is a test this is a test this is a test
19this is a test this is a test this is a test this is a test
2-----------------------------7d51f8756021a
Content-Disposition: form-data; name="image_file"; filename="C:\Documents and Settings\XXXXXX\My Documents\matter solutions\clients\XXXXXX\testfile.txt"
Content-Type: text/plain

1this is a test this is a test this is a test this is a test
2this is a test this is a test
3this is a test this is a test this is a test this is a test this is a test this is a test
4this is a test this is a test this is a test this is a test
5this is a test this is a test
6this is a test this is a test this is a test this is a test this is a test this is a test
7this is a test this is a test this is a test this is a test
8this is a test this is a test
9this is a test this is a test this is a test this is a test this is a test this is a test
10this is a test this is a test this is a test this is a test
11this is a test this is a test
12this is a test this is a test this is a test this is a test this is a test this is a test
13this is a test this is a test this is a test this is a test
14this is a test this is a test
15this is a test this is a test this is a test this is a test this is a test this is a test
16this is a test this is a test this is a test this is a test
17this is a test this is a test
18this is a test this is a test this is a test this is a test this is a test this is a test
19this is a test this is a test this is a test this is a test
20this is a test this is a test
21this is a test this is a test this is a test this is a test this is a test this is a test
22this is a test this is a test this is a test this is a test
23this is a test this is a test
24this is a test this is a test this is a test this is a test this is a test this is a test
25this is a test this is a test this is a test this is a test
26this is a test this is a test
27this is a test this is a test this is a test this is a test this is a test this is a test
28this is a test this is a test this is a test this is a test
29this is a test this is a test
30this is a test this is a test this is a test this is a test this is a test this is a test
31this is a test this is a test this is a test this is a test
32this is a test this is a test
33this is a test this is a test this is a test this is a test this is a test this is a test
34this is a test this is a test this is a test this is a test
35this is a test this is a test
36this is a test this is a test this is a test this is a test this is a test this is a test
37this is a test this is a test this is a test this is a test
38this is a test this is a test
39this is a test this is a test this is a test this is a test this is a test this is a test
40this is a test this is a test this is a test this is a test
41this is a test this is a test
42this is a test this is a test this is a test this is a test t0this is a test this is a test
21this is a test this is a test this is a test this is a test this is a test this is a test
22this is a test this is a test this is a test this is a test
23this is a test this is a test
24this is a test this is a test this is a test this is a test this is a test this is a test
25this is a test this is a test this is a test this is a test
26this is a test this is a test
27this is a test this is a test this is a test this is a test this is a test this is a test
28this is a test this is a test this is a test this is a test
29this is a test this is a test
30this is a test this is a test this is a test this is a test this is a test this is a test
31this is a test this is a test this is a test this is a test
32this is a test this is a test
33this is a test this is a test this is a test this is a test this is a test this is a test
34this is a test this is a test this is a test this is a test
35this is a test this is a test
36this is a test this is a test this is a test this is a test this is a test this is a test
37this is a test this is a test this is a test this is a test
38this is a test this is a test
39this is a test this is a test this is a test this is a test this is a test this is a test
40this is a test this is a test this is a test this is a test
41this is a test this is a test
42this is a test this is a test this is a test this is a test this is a test this is a test
43this is a test this is a test this is a test this is a test
44this is a test this is a test
45this is a test this is a test this is a test this is a test this is a test this is a test
46this is a test this is a test this is a test this is a test
47this is a test this is a test
48this is a test this is a test this is a test this is a test this is a test this is a test
49this is a test this is a test this is a test this is a test

It seems to us that every 20 lines get swapped around and shown twice.... it does mad things to JPG and GIF files

The script is a generic one we use all the time and works with PHP4.... we also tested the move_uploaded_file() and copy() functions on the php 5 box to make sure the mess wasn't caused when the tmp file is copied or moved.

We also tried the upload from other browsers, Mozilla & Firefox and get the same result.

Thanks for reading this far.... its a doozy and we've been scratching our heads for a few days on this. Any help would be greatly appreciated.

[justsomeone]

can you reveal the code here? It may help identify what's going on.

[mattersolutions]

Thanks for the interest. The test upload script we're running is this...

<?php
//print_r($_POST);

if($_POST["action"] == "Upload Image")
{
unset($imagename);

if(!isset($_FILES) && isset($HTTP_POST_FILES))
$_FILES = $HTTP_POST_FILES;

if(!isset($_FILES['image_file']))
$error["image_file"] = "An image was not found.";


$imagename = basename($_FILES['image_file']['name']);
//echo $imagename;

if(empty($imagename))
$error["imagename"] = "The name of the image was not found.";

if(empty($error))
{
$newimage = "" . $imagename;
//echo $newimage;
$result = @move_uploaded_file($_FILES['image_file']['tmp_name'], $newimage);
if(empty($result)) {
$error["result"] = "There was an error moving the uploaded file.";
print_r($_FILES);
} else 
 echo "<img src='".$newimage."' border=0>";

}

}

?>
<form method="POST" enctype="multipart/form-data" name="image_upload_form" action="<?php $_SERVER["PHP_SELF"];?>">
<p><input type="file" name="image_file" size="20"></p>
<p><input type="submit" value="Upload Image" name="action"></p>
</form>

<?php
if(is_array($error))
{
while(list($key, $val) = each($error))
{
echo $val;
echo "<br>\n";
}
}
?>

The main script is more complex but this script is the simplest way of reproducing the error.

WARNING
Clearly this is a pretty dangerous script... if you use this to upload files please make sure you are...
1) limiting user access
2) limit the types of files accepted
3) control the destination (directory) of the files uploaded