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[1.7.0] Add DefinitionID for HTML, to prevent caching conflicts with custom-edited definition objects. Also, more user friendly error messages from Config.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1146 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang 2007-06-16 20:21:00 +00:00
parent e840564228
commit 9c7483166c
5 changed files with 95 additions and 24 deletions
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4
NEWS
View File

@ -22,7 +22,8 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
new objects via make()
# Definitions (esp. HTMLDefinition) are now cached for a significant
performance boost. You can disable caching by setting %Core.DefinitionCache
to null.
to null. You CANNOT edit raw definitions without setting the corresponding
DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
# Contents between <script> tags are now completely removed if <script>
is not allowed
! HTML Purifier now works in PHP 4.3.2.
@ -34,6 +35,7 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
! All deprecated elements now natively supported
! Implement TinyMCE styled whitelist specification format in
%HTML.Allowed
! Config object gives more friendly error messages when things go wrong
- Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
. Unit test for ElementDef created, ElementDef behavior modified to
be more flexible

2
TODO
View File

@ -7,7 +7,7 @@ TODO List
? Maybe I'll Do It
==========================
1.7 release [Advanced API]
1.7 release (possibly 2.0) [Advanced API]
# Complete advanced API, and fully document it
- Add framework for unsafe attributes
- Set up anonymous module management by HTMLDefinition (Advanced API)

42
library/HTMLPurifier/Config.php
View File

@ -129,12 +129,14 @@ class HTMLPurifier_Config
function get($namespace, $key, $from_alias = false) {
if (!$this->finalized && $this->autoFinalize) $this->finalize();
if (!isset($this->def->info[$namespace][$key])) {
trigger_error('Cannot retrieve value of undefined directive',
// can't add % due to SimpleTest bug
trigger_error('Cannot retrieve value of undefined directive ' . htmlspecialchars("$namespace.$key"),
E_USER_WARNING);
return;
}
if ($this->def->info[$namespace][$key]->class == 'alias') {
trigger_error('Cannot get value from aliased directive, use real name',
$d = $this->def->info[$namespace][$key];
trigger_error('Cannot get value from aliased directive, use real name ' . $d->namespace . '.' . $d->name,
E_USER_ERROR);
return;
}
@ -148,7 +150,7 @@ class HTMLPurifier_Config
function getBatch($namespace) {
if (!$this->finalized && $this->autoFinalize) $this->finalize();
if (!isset($this->def->info[$namespace])) {
trigger_error('Cannot retrieve undefined namespace',
trigger_error('Cannot retrieve undefined namespace ' . htmlspecialchars($namespace),
E_USER_WARNING);
return;
}
@ -184,14 +186,14 @@ class HTMLPurifier_Config
function set($namespace, $key, $value, $from_alias = false) {
if ($this->isFinalized('Cannot set directive after finalization')) return;
if (!isset($this->def->info[$namespace][$key])) {
trigger_error('Cannot set undefined directive to value',
trigger_error('Cannot set undefined directive ' . htmlspecialchars("$namespace.$key") . ' to value',
E_USER_WARNING);
return;
}
if ($this->def->info[$namespace][$key]->class == 'alias') {
if ($from_alias) {
trigger_error('Double-aliases not allowed, please fix '.
'ConfigSchema bug');
'ConfigSchema bug with' . "$namespace.$key");
}
$this->set($this->def->info[$namespace][$key]->namespace,
$this->def->info[$namespace][$key]->name,
@ -200,7 +202,7 @@ class HTMLPurifier_Config
}
$value = $this->def->validate(
$value,
$this->def->info[$namespace][$key]->type,
$type = $this->def->info[$namespace][$key]->type,
$this->def->info[$namespace][$key]->allow_null
);
if (is_string($value)) {
@ -211,13 +213,14 @@ class HTMLPurifier_Config
if ($this->def->info[$namespace][$key]->allowed !== true) {
// check to see if the value is allowed
if (!isset($this->def->info[$namespace][$key]->allowed[$value])) {
trigger_error('Value not supported', E_USER_WARNING);
trigger_error('Value not supported, valid values are: ' .
$this->_listify($this->def->info[$namespace][$key]->allowed), E_USER_WARNING);
return;
}
}
}
if ($this->def->isError($value)) {
trigger_error('Value is of invalid type', E_USER_WARNING);
trigger_error('Value for ' . "$namespace.$key" . ' is of invalid type, should be ' . $type, E_USER_WARNING);
return;
}
$this->conf[$namespace][$key] = $value;
@ -232,6 +235,16 @@ class HTMLPurifier_Config
$this->serials[$namespace] = false;
}
/**
* Convenience function for error reporting
* @private
*/
function _listify($lookup) {
$list = array();
foreach ($lookup as $name => $b) $list[] = $name;
return implode(', ', $list);
}
/**
* Retrieves reference to the HTML definition.
* @param $raw Return a copy that has not been setup yet. Must be
@ -285,10 +298,19 @@ class HTMLPurifier_Config
$this->definitions[$type] = new HTMLPurifier_CSSDefinition();
} else {
trigger_error("Definition of $type type not supported");
return false;
$false = false;
return $false;
}
// quick abort if raw
if ($raw) return $this->definitions[$type];
if ($raw) {
if (is_null($this->get($type, 'DefinitionID'))) {
// fatally error out if definition ID not set
trigger_error("Cannot retrieve raw version without specifying %$type.DefinitionID", E_USER_ERROR);
$false = false;
return $false;
}
return $this->definitions[$type];
}
// set it up
$this->definitions[$type]->setup($this);
// save in cache

37
library/HTMLPurifier/HTMLDefinition.php
View File

@ -6,6 +6,37 @@ require_once 'HTMLPurifier/HTMLModuleManager.php';
// this definition and its modules MUST NOT define configuration directives
// outside of the HTML or Attr namespaces
HTMLPurifier_ConfigSchema::define(
'HTML', 'DefinitionID', null, 'string/null', '
<p>
Unique identifier for a custom-built HTML definition. If you edit
the raw version of the HTMLDefinition, introducing changes that the
configuration object does not reflect, you must specify this variable.
If you change your custom edits, you should change this directive, or
clear your cache. Example:
</p>
<pre>
$config = HTMLPurifier_Config::createDefault();
$config->set(\'HTML\', \'DefinitionID\', \'1\');
$def = $config->getHTMLDefinition();
$def->addAttribute(\'a\', \'tabindex\', \'Number\');
</pre>
<p>
In the above example, the configuration is still at the defaults, but
using the advanced API, an extra attribute has been added. The
configuration object normally has no way of knowing that this change
has taken place, so it needs an extra directive: %HTML.DefinitionID.
If someone else attempts to use the default configuration, these two
pieces of code will not clobber each other in the cache, since one has
an extra directive attached to it.
</p>
<p>
This directive has been available since 1.7.0, and in that version or
later you <em>must</em> specify a value to this directive to use the
advanced API features.
</p>
');
HTMLPurifier_ConfigSchema::define(
'HTML', 'BlockWrapper', 'p', 'string', '
<p>
@ -107,7 +138,7 @@ HTMLPurifier_ConfigSchema::define(
class HTMLPurifier_HTMLDefinition extends HTMLPurifier_Definition
{
/** FULLY-PUBLIC VARIABLES */
// FULLY-PUBLIC VARIABLES ---------------------------------------------
/**
* Associative array of element names to HTMLPurifier_ElementDef
@ -172,7 +203,9 @@ class HTMLPurifier_HTMLDefinition extends HTMLPurifier_Definition
var $doctype;
/** PUBLIC BUT INTERNAL VARIABLES */
// PUBLIC BUT INTERNAL VARIABLES --------------------------------------
var $type = 'HTML';
var $manager; /**< Instance of HTMLPurifier_HTMLModuleManager */

34
tests/HTMLPurifier/ConfigTest.php
View File

@ -66,10 +66,10 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$config->set('Element', 'IsotopeNames', array(238 => 'Plutonium-238', 239 => 'Plutonium-239'));
$config->set('Element', 'Object', false); // unmodeled
$this->expectError('Cannot set undefined directive to value');
$this->expectError('Cannot set undefined directive Element.Metal to value');
$config->set('Element', 'Metal', true);
$this->expectError('Value is of invalid type');
$this->expectError('Value for Element.Radioactive is of invalid type, should be bool');
$config->set('Element', 'Radioactive', 'very');
// test value retrieval
@ -83,7 +83,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$this->assertIdentical($config->get('Element', 'IsotopeNames'), array(238 => 'Plutonium-238', 239 => 'Plutonium-239'));
$this->assertIdentical($config->get('Element', 'Object'), false);
$this->expectError('Cannot retrieve value of undefined directive');
$this->expectError('Cannot retrieve value of undefined directive Element.Metal');
$config->get('Element', 'Metal');
}
@ -117,7 +117,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$config->set('Instrument', 'Manufacturer', 'Selmer');
$this->assertIdentical($config->get('Instrument', 'Manufacturer'), 'Conn-Selmer');
$this->expectError('Value not supported');
$this->expectError('Value not supported, valid values are: Yamaha, Conn-Selmer, Vandoren, Laubin, Buffet, other');
$config->set('Instrument', 'Manufacturer', 'buffet');
// case insensitive
@ -152,7 +152,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$this->assertIdentical($config->get('ReportCard', 'English'), null);
// error
$this->expectError('Value is of invalid type');
$this->expectError('Value for ReportCard.Absences is of invalid type, should be int');
$config->set('ReportCard', 'Absences', null);
}
@ -168,7 +168,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$this->assertIdentical($config->get('Home', 'Rug'), 3);
$this->expectError('Cannot get value from aliased directive, use real name');
$this->expectError('Cannot get value from aliased directive, use real name Home.Rug');
$config->get('Home', 'Carpet');
$config->set('Home', 'Carpet', 999);
@ -197,7 +197,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
);
// grab a non-existant namespace
$this->expectError('Cannot retrieve undefined namespace');
$this->expectError('Cannot retrieve undefined namespace Constants');
$config->getBatch('Constants');
}
@ -251,6 +251,7 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
$this->assertTrue($def->setup);
// test retrieval of raw definition
$config->set('HTML', 'DefinitionID', 'HTMLPurifier_ConfigTest->test_getHTMLDefinition()');
$def =& $config->getHTMLDefinition(true);
$this->assertNotEqual($def, $def2);
$this->assertFalse($def->setup);
@ -261,16 +262,29 @@ class HTMLPurifier_ConfigTest extends UnitTestCase
}
function test_getHTMLDefinition_rawError() {
$this->old_copy = HTMLPurifier_ConfigSchema::instance($this->old_copy);
$config = HTMLPurifier_Config::createDefault();
$this->expectError('Cannot retrieve raw version without specifying %HTML.DefinitionID');
$def =& $config->getHTMLDefinition(true);
}
function test_getCSSDefinition() {
$this->old_copy = HTMLPurifier_ConfigSchema::instance($this->old_copy);
$config = HTMLPurifier_Config::createDefault();
$config->autoFinalize = false;
$def = $config->getCSSDefinition();
$this->assertIsA($def, 'HTMLPurifier_CSSDefinition');
}
function test_getDefinition() {
CS::defineNamespace('Core', 'Core stuff');
CS::define('Core', 'DefinitionCache', null, 'string/null', 'Cache?');
CS::defineNamespace('Crust', 'Krusty Krabs');
$config = HTMLPurifier_Config::createDefault();
$this->expectError("Definition of Crust type not supported");
$config->getDefinition('Crust');
}
function test_loadArray() {
// setup a few dummy namespaces/directives for our testing
CS::defineNamespace('Zoo', 'Animals we have.');