#50314 [Fbk->Opn]: File upload problem
ID: 50314
User updated by: jj07020 at lanet dot lv
Reported By: jj07020 at lanet dot lv
-Status: Feedback
+Status: Open
Bug Type: Apache2 related
Operating System: Windows XP Pro SP3
PHP Version: 5.3.1
New Comment:
I tried it with php 5.2 (Snapshot Fri, 27 Nov 2009 11:41:38 +0000,
Version: 5.2.12RC3-dev) and it produces the same result.
Previous Comments:
------------------------------------------------------------------------
[2009-11-27 14:27:18] jani@php.net
Please try using this snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
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[2009-11-27 14:20:01] jj07020 at lanet dot lv
Description:
------------
It is possible to supply a filename which will be incorrectly parsed by
PHP. The problem occurs when uploading a file from an HTML form with
attributes name="file[" (lacking the closing bracket) and type="file".
I'm using Apache 2.2.14 & PHP 5.3.1, but I was able to reproduce the bug
with Apache 2.2.10 & PHP 5.3.0.
Reproduce code:
---------------
HTML form - form.html:
<form method="post" enctype="multipart/form-data"
action="upload.php">
<input type="file" name="file[" />
<input type="submit" value="OK" />
</form>
PHP code - upload.php:
<?php
var_dump($_FILES);
?>
The body of the HTTP request:
------------3PL7QzumhbsotvnG6nZnmR
Content-Disposition: form-data; name="file["; filename="code.gif"
Content-Type: image/gif
<binary gif data>
------------3PL7QzumhbsotvnG6nZnmR--
Expected result:
----------------
The array $_FILES should contain valid keys as specified in
http://www.php.net/manual/en/features.file-upload.post-method.php.
Hovever, the following assertion fails:
if (isset($_FILES["file"])) {
assert(is_string($_FILES["name"])); // actual key is "[name"
}
Since the filename ("file[") lacks the closing bracket, it probably
should be interpreted as a single file named "file[":
array(1) { ["file["]=> array(5) { ["name"]=> string(8)
"code.gif"
["type"]=> string(9) "image/gif" ["tmp_name"]=> string(17)
"C:\Temp\php3A.tmp" ["error"]=> int(0) ["size"]=> int(3342) } }
Actual result:
--------------
The array $_FILES:
array(1) { ["file"]=> array(5) { ["[name"]=> string(8)
"code.gif"
["[type"]=> string(9) "image/gif" ["[tmp_name"]=> string(17)
"C:\Temp\php3A.tmp" ["[error"]=> int(0) ["[size"]=> int(3342) }
}
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=50314&edit=1
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