Edit report at http://bugs.php.net/bug.php?id=52257&edit=1
ID: 52257
Updated by: lsm...@php.net
Reported by: matth at mlalonde dot net
Summary: module php5-librdf causes libxslt's security module
to fail
Status: Open
Type: Bug
Package: XSLT related
Operating System: Ubuntu LTS
PHP Version: 5.3.2
Block user comment: N
New Comment:
to add some more context about the issue, i talked to the author of php
rdf ext
on the #reland freenode IRC channel:
[15:23] <dajobe> lsmith: it's not the php module, it's raptor which
redland uses
[15:23] <dajobe> it sets the libxslt security policy
[15:24] <dajobe> http://librdf.org/raptor/api-1.4/raptor-section-
general.html#raptor-set-libxslt-security-preferences
[15:25] <dajobe> it's hard to do - how is raptor/redland suppose to know
when a
calling application is also wanting to adjust parameters of a shared
library
[15:26] <dajobe> it's the calling app's responsibility - php in this
case
Previous Comments:
------------------------------------------------------------------------
[2010-07-30 10:55:44] penny at liip dot ch
I had exactly the same problem with the following versions:
libxslt1.1 1.1.24-2
php5 5.2.6.dfsg.1-1+lenny8
php5-librdf 1.0.7.1-1+b1
Purging php5-librdf fixed the problem.
------------------------------------------------------------------------
[2010-07-06 00:46:03] matth at mlalonde dot net
Description:
------------
I have been able to replicate under three environment running Ubuntu LTS
php5 (cli, cgi or mod_php), libxslt 1.1.26 and the php5 module and
librdf0 and the php5 module.
With the above setup, any <xsl:import href="local/file.xsl" /> call will
fail with the error
XSLTProcessor::importStylesheet(): Local file read for
/path/to/local/file.xsl refused
Using XSLCache will result in a segfault and no errors.
Removing php5's librdf module fixes the issue.
Test script:
---------------
# a.php
<?php
ini_set('display_errors', 1);
ini_set('error_reporting', E_ALL|E_STRICT|E_NOTICE);
//phpinfo();
$doc = new DOMDocument();
$xsl = new XSLTProcessor();
$xsl_filename = __DIR__ . '/collection.xsl';
$xml_filename = __DIR__ . '/collection.xml';
$doc->load($xsl_filename);
$xsl->importStyleSheet($doc);
$doc->load($xml_filename);
echo $xsl->transformToXML($doc);
# collection.xml
<collection>
<cd>
<title>Fight for your mind</title>
<artist>Ben Harper</artist>
<year>1995</year>
</cd>
<cd>
<title>Electric Ladyland</title>
<artist>Jimi Hendrix</artist>
<year>1997</year>
</cd>
</collection>
# collection.xsl
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:import href="file:///var/www/pgadmin/temp/collection2.xsl" />
<xsl:param name="owner" select="'Nicolas Eliaszewicz'"/>
<xsl:output method="html" encoding="iso-8859-1" indent="no"/>
<xsl:template match="collection">
Hey! Welcome to <xsl:value-of select="$owner"/>'s sweet CD
collection!
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="cd">
<h1><xsl:value-of select="title"/></h1>
<h2>by <xsl:value-of select="artist"/> - <xsl:value-of
select="year"/></h2>
<hr />
</xsl:template>
</xsl:stylesheet>
# collection2.xsl
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:param name="owner" select="'Nicolas Eliaszewicz'"/>
<xsl:output method="html" encoding="iso-8859-1" indent="no"/>
<xsl:template match="collection">
Hey! Welcome to <xsl:value-of select="$owner"/>'s sweet CD
collection!
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="cd">
<h1><xsl:value-of select="title"/></h1>
<h2>by00 <xsl:value-of select="artist"/> - <xsl:value-of
select="year"/></h2>
<hr />
</xsl:template>
</xsl:stylesheet>
Expected result:
----------------
A parsed XSLT document with the imported stylesheets. And no errors ;)
Actual result:
--------------
Warning: XSLTProcessor::importStylesheet(): error in /var/www/temp/a.php
on line 14
Call Stack:
0.0002 627304 1. {main}() /var/www/temp/a.php:0
0.0006 631128 2. XSLTProcessor->importStylesheet()
/var/www/temp/a.php:14
Warning: XSLTProcessor::importStylesheet(): Local file read for
file:///var/www/pgadmin/temp/collection2.xsl refused in
/var/www/temp/a.php on line 14
Call Stack:
0.0002 627304 1. {main}() /var/www/temp/a.php:0
0.0006 631128 2. XSLTProcessor->importStylesheet()
/var/www/temp/a.php:14
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=52257&edit=1
