Edit report at https://bugs.php.net/bug.php?id=63769&edit=1
ID: 63769
Comment by: hanskrentel at yahoo dot de
Reported by: hanskrentel at yahoo dot de
Summary: file:// protocol does not support percent-encoded
characters
Status: Not a bug
Type: Bug
Package: Streams related
Operating System: Windows
PHP Version: 5.4.9
Block user comment: N
Private report: N
New Comment:
@ab:
Consider you have a file containing a space in the filename, and you *need to* specify the filename
in form of a file:// URI for which space is a special character that needs proper URL-encoding.
That file://-URI btw is set in an environemnt variable that requires it (XML_CATALOG_FILES).
Domdocument in PHP internally is then using that file://-URI and can't process it properly
because the wrapper is not able to properly decode the path information.
You actually pretty well demonstrate the problem in your example:
php -r "echo file_get_contents('file://C:/my/path/catalog%202.xml');"
percent filename
Is obviously wrong. %20 in a file://-URI is an ecoded space, so the content
space filename
needs to be output instead. The filename you meant is properly written as:
php -r "echo file_get_contents('file://C:/my/path/catalog%25202.xml');"
percent filename
compare: http://tools.ietf.org/html/rfc3986#section-2.1
Please add that example to yours because only if you have the two opposite cases (encoded *and*
decoded) you can actually work out concrete results. You are just having two times the same example,
of which I think both shows the
same form of wrong: Missing encoding in those URIs.
Which brings me to the point: Is there actually any interest to fix this? I mean there is not much
standing in the way if you ask me. Normally users are not using the file:// URIs at all.
Those who did most likely used the space (or would have complained earlier here, but I could find no
bug-report). The only edge-case I can see is with files containing percent-signs, however how
likely is that at all?
Let me know if I would sponsor some well written patch how the chances would be to get this fixed.
Previous Comments:
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[2013-01-08 17:12:54] ab@php.net
@hanskrentel
That's my test:
- create file 'catalog%202.xml' with content "percent filename"
- create file 'catalog 2.xml' with content "space filename"
- then run
php -r "echo file_get_contents('file://C:/my/path/catalog%202.xml');"
percent filename
- then run
php -r "echo file_get_contents('file://C:/my/path/catalog 2.xml');"
space filename
That's pretty straight forward. That's what I mean - no decoding, both are valid
filenames. The decoding should be done in your app depending on what it needs. In your example - you
create 'catalog 2.xml' and are trying to stat 'catalog%202.xml', literally. But
'catalog%202.xml' doesn't exist.
------------------------------------------------------------------------
[2013-01-06 07:03:56] anon at anon dot anon
Actually, hold on a sec, plus signs are *not* supposed to be decoded here. That means that file
names containing plus signs would not be broken by a fix, and only file names containing a
'%xx' (where x is a hexit) sequence would be affected, which is probably uncommon. Perhaps
you have a chance.
------------------------------------------------------------------------
[2013-01-06 06:38:45] anon at anon dot anon
>You would have wanted to access it via 'file:///C:/temp/catalog%%25202.xml'
Actually, 'catalog%25202.xml', but I know, I'm agreeing with you. I'm just
pointing out that this erroneous behavior may be depended on somewhere in some PHP script, where the
author, in good faith, did whatever made things work. I assume you're going to pass your path
through urldecode (or not encode it in the first place), and then you'll be one of them.
In any case, you're unlikely to get any support here. The reviewers here don't do much
except dismiss things as 'Not a bug' and once they've successfully done that they
lose interest. C'est le PHP.
------------------------------------------------------------------------
[2013-01-06 01:29:30] hanskrentel at yahoo dot de
If you would create a file named
catalog%202.xml.
You would have wanted to access it via:
'file:///C:/temp/catalog%%25202.xml'
which as well does not work. I'm not doing a bug report here to be treated like
an idiot. I better suggest you piss completely off
instead of leaving such an idiotic comment. My 2 cents.
------------------------------------------------------------------------
[2012-12-20 16:27:43] anon at anon dot anon
>The path "file:///C:/temp/catalog%202.xml" (without the quotes) does *not* work.
Unfortunately it does work, if you create a file literally named catalog%202.xml. PHP's
behavior is broken but it's impossible to alter it without breaking compatibility.
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