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Fix problem where stacked AttrTransforms clobber each other.

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Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
This commit is contained in:
Edward Z. Yang 2012-03-16 23:12:16 -04:00
parent 9fcffd6533
commit 7291f19347
7 changed files with 39 additions and 12 deletions
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4
NEWS
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@ -10,6 +10,10 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
==========================
4.5.0, unknown release date
# Fix bug where stacked attribute transforms clobber each other;
this also means it's no longer possible to override attribute
transforms in later modules. No internal code was using this
but this may break some clients.
4.4.0, released 2012-01-18
# Removed PEARSax3 handler.

8
configdoc/usage.xml
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@ -254,7 +254,7 @@
</directive>
<directive id="URI.">
<file name="HTMLPurifier/URIDefinition.php">
<line>59</line>
<line>60</line>
</file>
<file name="HTMLPurifier/URIFilter/Munge.php">
<line>12</line>
@ -262,7 +262,7 @@
</directive>
<directive id="URI.Host">
<file name="HTMLPurifier/URIDefinition.php">
<line>69</line>
<line>70</line>
</file>
<file name="HTMLPurifier/URIScheme.php">
<line>81</line>
@ -270,12 +270,12 @@
</directive>
<directive id="URI.Base">
<file name="HTMLPurifier/URIDefinition.php">
<line>70</line>
<line>71</line>
</file>
</directive>
<directive id="URI.DefaultScheme">
<file name="HTMLPurifier/URIDefinition.php">
<line>77</line>
<line>78</line>
</file>
</directive>
<directive id="URI.AllowedSchemes">

20
library/HTMLPurifier/ElementDef.php
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@ -30,13 +30,25 @@ class HTMLPurifier_ElementDef
*/
public $attr = array();
// XXX: Design note: currently, it's not possible to override
// previously defined AttrTransforms without messing around with
// the final generated config. This is by design; a previous version
// used an associated list of attr_transform, but it was extremely
// easy to accidentally override other attribute transforms by
// forgetting to specify an index (and just using 0.) While we
// could check this by checking the index number and complaining,
// there is a second problem which is that it is not at all easy to
// tell when something is getting overridden. Combine this with a
// codebase where this isn't really being used, and it's perfect for
// nuking.
/**
* Indexed list of tag's HTMLPurifier_AttrTransform to be done before validation
* List of tags HTMLPurifier_AttrTransform to be done before validation
*/
public $attr_transform_pre = array();
/**
* Indexed list of tag's HTMLPurifier_AttrTransform to be done after validation
* List of tags HTMLPurifier_AttrTransform to be done after validation
*/
public $attr_transform_post = array();
@ -144,9 +156,9 @@ class HTMLPurifier_ElementDef
}
$this->attr[$k] = $v;
}
$this->_mergeAssocArray($this->attr_transform_pre, $def->attr_transform_pre);
$this->_mergeAssocArray($this->attr_transform_post, $def->attr_transform_post);
$this->_mergeAssocArray($this->excludes, $def->excludes);
$this->attr_transform_pre = array_merge($this->attr_transform_pre, $def->attr_transform_pre);
$this->attr_transform_post = array_merge($this->attr_transform_post, $def->attr_transform_post);
if(!empty($def->content_model)) {
$this->content_model =

2
library/HTMLPurifier/HTMLModule/Bdo.php
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@ -21,7 +21,7 @@ class HTMLPurifier_HTMLModule_Bdo extends HTMLPurifier_HTMLModule
// inclusions wrong for bdo: bdo allows Lang
)
);
$bdo->attr_transform_post['required-dir'] = new HTMLPurifier_AttrTransform_BdoDir();
$bdo->attr_transform_post[] = new HTMLPurifier_AttrTransform_BdoDir();
$this->attr_collections['I18N']['dir'] = 'Enum#ltr,rtl';
}

2
library/HTMLPurifier/HTMLModule/Name.php
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@ -11,7 +11,7 @@ class HTMLPurifier_HTMLModule_Name extends HTMLPurifier_HTMLModule
$element = $this->addBlankElement($name);
$element->attr['name'] = 'CDATA';
if (!$config->get('HTML.Attr.Name.UseCDATA')) {
$element->attr_transform_post['NameSync'] = new HTMLPurifier_AttrTransform_NameSync();
$element->attr_transform_post[] = new HTMLPurifier_AttrTransform_NameSync();
}
}
}

4
library/HTMLPurifier/HTMLModule/Scripting.php
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@ -45,8 +45,8 @@ class HTMLPurifier_HTMLModule_Scripting extends HTMLPurifier_HTMLModule
);
$this->info['script']->content_model = '#PCDATA';
$this->info['script']->content_model_type = 'optional';
$this->info['script']->attr_transform_pre['type'] =
$this->info['script']->attr_transform_post['type'] =
$this->info['script']->attr_transform_pre[] =
$this->info['script']->attr_transform_post[] =
new HTMLPurifier_AttrTransform_ScriptRequired();
}
}

11
tests/HTMLPurifier/ElementDefTest.php
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@ -22,12 +22,16 @@ class HTMLPurifier_ElementDefTest extends HTMLPurifier_Harness
'overloaded-attr' => $overloaded_old,
'removed-attr' => $removed,
);
/*
$def1->attr_transform_pre =
$def1->attr_transform_post = array(
'old-transform' => $old,
'overloaded-transform' => $overloaded_old,
'removed-transform' => $removed,
);
*/
$def1->attr_transform_pre[] = $old;
$def1->attr_transform_post[] = $old;
$def1->child = $overloaded_old;
$def1->content_model = 'old';
$def1->content_model_type = $overloaded_old;
@ -44,12 +48,16 @@ class HTMLPurifier_ElementDefTest extends HTMLPurifier_Harness
'overloaded-attr' => $overloaded_new,
'removed-attr' => false,
);
/*
$def2->attr_transform_pre =
$def2->attr_transform_post = array(
'new-transform' => $new,
'overloaded-transform' => $overloaded_new,
'removed-transform' => false,
);
*/
$def2->attr_transform_pre[] = $new;
$def2->attr_transform_post[] = $new;
$def2->child = $new;
$def2->content_model = '#SUPER | new';
$def2->content_model_type = $overloaded_new;
@ -70,11 +78,14 @@ class HTMLPurifier_ElementDefTest extends HTMLPurifier_Harness
'new-attr' => $new,
));
$this->assertIdentical($def1->attr_transform_pre, $def1->attr_transform_post);
$this->assertIdentical($def1->attr_transform_pre, array($old, $new));
/*
$this->assertIdentical($def1->attr_transform_pre, array(
'old-transform' => $old,
'overloaded-transform' => $overloaded_new,
'new-transform' => $new,
));
*/
$this->assertIdentical($def1->child, $new);
$this->assertIdentical($def1->content_model, 'old | new');
$this->assertIdentical($def1->content_model_type, $overloaded_new);