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Bug #71368 FILTER_VALIDATE_URL rejects URLs starting with phar:///
Submitted: 2016-01-14 11:52 UTC Modified: 2021-03-12 12:41 UTC
Votes:2
Avg. Score:3.0 ± 0.0
Reproduced:1 of 2 (50.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: bschussek at gmail dot com Assigned:
Status: Open Package: Filter related
PHP Version: 7.0.2 OS: Ubuntu 14.04 LTS
Private report: No CVE-ID: None
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 [2016-01-14 11:52 UTC] bschussek at gmail dot com
Description:
------------
FILTER_VALIDATE_URLS rejects URLs starting with "phar:///".

Test script:
---------------
<?php

var_dump(filter_var('file://c:/path/to/dir', FILTER_VALIDATE_URL));
var_dump(filter_var('file:///path/to/dir', FILTER_VALIDATE_URL));
var_dump(filter_var('phar://c:/path/to/dir', FILTER_VALIDATE_URL));
var_dump(filter_var('phar:///path/to/dir', FILTER_VALIDATE_URL));

Expected result:
----------------
string(21) "file://c:/path/to/dir"
string(19) "file:///path/to/dir"
string(21) "phar://c:/path/to/dir"
string(19) "phar:///path/to/dir"


Actual result:
--------------
string(21) "file://c:/path/to/dir"
string(19) "file:///path/to/dir"
string(21) "phar://c:/path/to/dir"
bool(false)


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 [2020-04-15 16:42 UTC] cmb@php.net
This is because these URLs are rejected by parse_url()[1].

[1] <https://3v4l.org/uaF2G>
 [2021-03-12 12:41 UTC] cmb@php.net
More specifically, there is no special support for the phar
protocol in parse_url_ex2(), but there is for the file
protocol[1].

[1] <https://github.com/php/php-src/blob/php-7.4.16/ext/standard/url.c#L175-L176>
 
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