mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-12-23 00:41:52 +00:00
[1.7.0] Remove vestigal chunks of code from HTMLModuleManager, switch HTMLDefinition to use validModules, and update some inline docs.
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1055 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
parent
05e1aca2fa
commit
048242004e
@ -182,7 +182,7 @@ class HTMLPurifier_HTMLDefinition
|
||||
|
||||
$this->manager->setup($this->config);
|
||||
|
||||
foreach ($this->manager->activeModules as $module) {
|
||||
foreach ($this->manager->validModules as $module) {
|
||||
foreach($module->info_tag_transform as $k => $v) {
|
||||
if ($v === false) unset($this->info_tag_transform[$k]);
|
||||
else $this->info_tag_transform[$k] = $v;
|
||||
|
||||
@ -31,7 +31,7 @@ require_once 'HTMLPurifier/HTMLModule/TransformToXHTML11.php';
|
||||
|
||||
HTMLPurifier_ConfigSchema::define(
|
||||
'HTML', 'Doctype', null, 'string/null',
|
||||
'Doctype to use, valid values are HTML 4.01 Transitional, HTML 4.01 '.
|
||||
'Doctype to use, pre-defined values are HTML 4.01 Transitional, HTML 4.01 '.
|
||||
'Strict, XHTML 1.0 Transitional, XHTML 1.0 Strict, XHTML 1.1. '.
|
||||
'Technically speaking this is not actually a doctype (as it does '.
|
||||
'not identify a corresponding DTD), but we are using this name '.
|
||||
@ -93,16 +93,6 @@ class HTMLPurifier_HTMLModuleManager
|
||||
*/
|
||||
var $doctypes;
|
||||
|
||||
/**
|
||||
* Associative array: $collections[$type][$doctype] = list of modules.
|
||||
* This is used to logically separate types of functionality so that
|
||||
* based on the doctype and other configuration settings they may
|
||||
* be easily switched and on and off. Custom setups may not need
|
||||
* to use this abstraction, opting to have only one big collection
|
||||
* with one valid doctype.
|
||||
*/
|
||||
var $collections = array();
|
||||
|
||||
/**
|
||||
* Modules that may be used in a valid doctype of this kind.
|
||||
* Correctional and leniency modules should not be placed in this
|
||||
@ -110,14 +100,6 @@ class HTMLPurifier_HTMLModuleManager
|
||||
* module for this doctype in here.
|
||||
*/
|
||||
var $validModules = array();
|
||||
var $validCollections = array(); /**< Collections to merge into $validModules */
|
||||
|
||||
/**
|
||||
* Modules that we will allow in input, subset of $validModules. Single
|
||||
* element definitions may result in us consulting validModules.
|
||||
*/
|
||||
var $activeModules = array();
|
||||
var $activeCollections = array(); /**< Collections to merge into $activeModules */
|
||||
|
||||
var $counter = 0; /**< Designates next available integer order for modules. */
|
||||
var $initialized = false; /**< Says whether initialize() was called */
|
||||
@ -128,12 +110,6 @@ class HTMLPurifier_HTMLModuleManager
|
||||
* with $autoCollection.
|
||||
*/
|
||||
var $autoDoctype = false;
|
||||
/**
|
||||
* Specifies what collection to siphon new modules from addModule() to,
|
||||
* or false to disable the functionality. Must be used in conjunction
|
||||
* with $autoCollection.
|
||||
*/
|
||||
var $autoCollection = false;
|
||||
|
||||
/** Associative array of element name to defining modules (always array) */
|
||||
var $elementLookup = array();
|
||||
@ -209,64 +185,13 @@ class HTMLPurifier_HTMLModuleManager
|
||||
$d->modules = array_merge($common);
|
||||
$d->modulesForMode['lenient'] = array('TransformToStrict', 'TransformToXHTML11');
|
||||
|
||||
// ----------------------------------------------------------------
|
||||
|
||||
// Safe modules for supported doctypes. These are included
|
||||
// in the valid and active module lists by default
|
||||
$this->collections['Safe'] = array(
|
||||
'_Common' => array( // leading _ indicates private
|
||||
'CommonAttributes', 'Text', 'Hypertext', 'List',
|
||||
'Presentation', 'Edit', 'Bdo', 'Tables', 'Image',
|
||||
'StyleAttribute'
|
||||
),
|
||||
// HTML definitions, defer to XHTML definitions
|
||||
'HTML 4.01 Transitional' => array(array('XHTML 1.0 Transitional')),
|
||||
'HTML 4.01 Strict' => array(array('XHTML 1.0 Strict')),
|
||||
// XHTML definitions
|
||||
'XHTML 1.0 Transitional' => array( array('XHTML 1.0 Strict'), 'Legacy', 'Target' ),
|
||||
'XHTML 1.0 Strict' => array(array('_Common')),
|
||||
'XHTML 1.1' => array(array('_Common')),
|
||||
);
|
||||
|
||||
// Modules that specify elements that are unsafe from untrusted
|
||||
// third-parties. These should be registered in $validModules but
|
||||
// almost never $activeModules unless you really know what you're
|
||||
// doing.
|
||||
$this->collections['Unsafe'] = array();
|
||||
|
||||
// Modules to import if lenient mode (attempt to convert everything
|
||||
// to a valid representation) is on. These must not be in $validModules
|
||||
// unless specified so.
|
||||
$this->collections['Lenient'] = array(
|
||||
'HTML 4.01 Strict' => array(array('XHTML 1.0 Strict')),
|
||||
'XHTML 1.0 Strict' => array('TransformToStrict'),
|
||||
'XHTML 1.1' => array(array('XHTML 1.0 Strict'), 'TransformToXHTML11')
|
||||
);
|
||||
|
||||
// Modules to import if correctional mode (correct everything that
|
||||
// is feasible to strict mode) is on. These must not be in $validModules
|
||||
// unless specified so.
|
||||
$this->collections['Correctional'] = array(
|
||||
'HTML 4.01 Transitional' => array(array('XHTML 1.0 Transitional')),
|
||||
'XHTML 1.0 Transitional' => array('TransformToStrict'), // probably want a different one
|
||||
);
|
||||
|
||||
// User-space modules, custom code or whatever
|
||||
$this->collections['Extension'] = array();
|
||||
|
||||
// setup active versus valid modules. ORDER IS IMPORTANT!
|
||||
// definition modules
|
||||
$this->makeCollectionActive('Safe');
|
||||
$this->makeCollectionValid('Unsafe');
|
||||
// redefinition modules
|
||||
$this->makeCollectionActive('Lenient');
|
||||
$this->makeCollectionActive('Correctional');
|
||||
|
||||
$this->autoDoctype = '*';
|
||||
$this->autoCollection = 'Extension';
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @temporary
|
||||
*/
|
||||
function &addDoctype($name) {
|
||||
$this->doctypes[$name] = new HTMLPurifier_Doctype();
|
||||
$this->doctypes[$name]->name = $name;
|
||||
@ -336,25 +261,6 @@ class HTMLPurifier_HTMLModuleManager
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes a collection active, while also making it valid if not
|
||||
* already done so. See $activeModules for the semantics of "active".
|
||||
* @param $collection_name Name of collection to activate
|
||||
*/
|
||||
function makeCollectionActive($collection_name) {
|
||||
if (!in_array($collection_name, $this->validCollections)) {
|
||||
$this->makeCollectionValid($collection_name);
|
||||
}
|
||||
$this->activeCollections[] = $collection_name;
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes a collection valid. See $validModules for the semantics of "valid"
|
||||
*/
|
||||
function makeCollectionValid($collection_name) {
|
||||
$this->validCollections[] = $collection_name;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a class prefix that addModule() will use to resolve a
|
||||
* string name to a concrete class
|
||||
@ -365,27 +271,14 @@ class HTMLPurifier_HTMLModuleManager
|
||||
|
||||
function setup($config) {
|
||||
|
||||
// load up the autocollection
|
||||
if ($this->autoCollection !== false) {
|
||||
$this->makeCollectionActive($this->autoCollection);
|
||||
}
|
||||
|
||||
// retrieve the doctype
|
||||
$this->doctype = $this->getDoctype($config);
|
||||
if (isset($this->doctypeAliases[$this->doctype])) {
|
||||
// resolve alias
|
||||
$this->doctype = $this->doctypeAliases[$this->doctype];
|
||||
}
|
||||
|
||||
// process module collections to module name => module instance form
|
||||
foreach ($this->collections as $col_i => $x) {
|
||||
$this->processCollections($this->collections[$col_i]);
|
||||
}
|
||||
|
||||
//$this->validModules = $this->assembleModules($this->validCollections);
|
||||
$this->activeModules = $this->assembleModules($this->activeCollections);
|
||||
|
||||
// ----------------------------------------------------------------
|
||||
|
||||
// retrieve object instance of doctype
|
||||
$doctype = $this->doctypes[$this->doctype];
|
||||
$modules = $doctype->modules;
|
||||
foreach ($doctype->modulesForMode as $mode => $mode_modules) {
|
||||
@ -397,8 +290,6 @@ class HTMLPurifier_HTMLModuleManager
|
||||
$this->validModules[$module] = $this->modules[$module];
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------
|
||||
|
||||
// setup lookup table based on all valid modules
|
||||
foreach ($this->validModules as $module) {
|
||||
foreach ($module->info as $name => $def) {
|
||||
@ -411,168 +302,20 @@ class HTMLPurifier_HTMLModuleManager
|
||||
|
||||
// note the different choice
|
||||
$this->contentSets = new HTMLPurifier_ContentSets(
|
||||
// content models that contain non-allowed elements are
|
||||
// harmless because RemoveForeignElements will ensure
|
||||
// they never get in anyway, and there is usually no
|
||||
// reason why you should want to restrict a content
|
||||
// model beyond what is mandated by the doctype.
|
||||
// Note, however, that this means redefinitions of
|
||||
// content models can't be tossed in validModels willy-nilly:
|
||||
// that stuff still is regulated by configuration.
|
||||
// content set assembly deals with all possible modules,
|
||||
// not just ones deemed to be "safe"
|
||||
$this->validModules
|
||||
);
|
||||
$this->attrCollections = new HTMLPurifier_AttrCollections(
|
||||
$this->attrTypes,
|
||||
// only explicitly allowed modules are allowed to affect
|
||||
// the global attribute collections. This mean's there's
|
||||
// a distinction between loading the Bdo module, and the
|
||||
// bdo element: Bdo will enable the dir attribute on all
|
||||
// elements, while bdo will only define the bdo element,
|
||||
// which will not have an editable directionality. This might
|
||||
// catch people who are loading only elements by surprise, so
|
||||
// we should consider loading an entire module if all the
|
||||
// elements it defines are requested by the user, especially
|
||||
// if it affects the global attribute collections.
|
||||
$this->activeModules
|
||||
// there is no way to directly disable a global attribute,
|
||||
// but using AllowedAttributes or simply not including
|
||||
// the module in your custom doctype should be sufficient
|
||||
$this->validModules
|
||||
);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Takes a list of collections and merges together all the defined
|
||||
* modules for the current doctype from those collections.
|
||||
* @param $collections List of collection suffixes we should grab
|
||||
* modules from (like 'Safe' or 'Lenient')
|
||||
*/
|
||||
function assembleModules($collections) {
|
||||
$modules = array();
|
||||
$numOfCollectionsUsed = 0;
|
||||
foreach ($collections as $name) {
|
||||
$disable_global = false;
|
||||
if (!isset($this->collections[$name])) {
|
||||
trigger_error("$name collection is undefined", E_USER_ERROR);
|
||||
continue;
|
||||
}
|
||||
$cols = $this->collections[$name];
|
||||
if (isset($cols[$this->doctype])) {
|
||||
if (isset($cols[$this->doctype]['*'])) {
|
||||
unset($cols[$this->doctype]['*']);
|
||||
$disable_global = true;
|
||||
}
|
||||
$modules += $cols[$this->doctype];
|
||||
$numOfCollectionsUsed++;
|
||||
}
|
||||
// accept catch-all doctype
|
||||
if (
|
||||
$this->doctype !== '*' &&
|
||||
isset($cols['*']) &&
|
||||
!$disable_global
|
||||
) {
|
||||
$modules += $cols['*'];
|
||||
}
|
||||
}
|
||||
|
||||
if ($numOfCollectionsUsed < 1) {
|
||||
// possible XSS injection if user-specified doctypes
|
||||
// are allowed
|
||||
trigger_error("Doctype {$this->doctype} does not exist, ".
|
||||
"check for typos (if you desire a doctype that allows ".
|
||||
"no elements, use an empty array collection)", E_USER_ERROR);
|
||||
}
|
||||
return $modules;
|
||||
}
|
||||
|
||||
/**
|
||||
* Takes a collection and performs inclusions and substitutions for it.
|
||||
* @param $cols Reference to collections class member variable
|
||||
*/
|
||||
function processCollections(&$cols) {
|
||||
|
||||
// $cols is the set of collections
|
||||
// $col_i is the name (index) of a collection
|
||||
// $col is a collection/list of modules
|
||||
|
||||
// perform inclusions
|
||||
foreach ($cols as $col_i => $col) {
|
||||
$seen = array();
|
||||
if (!empty($col[0]) && is_array($col[0])) {
|
||||
$seen[$col_i] = true; // recursion reporting
|
||||
$includes = $col[0];
|
||||
unset($cols[$col_i][0]); // remove inclusions value, recursion guard
|
||||
} else {
|
||||
$includes = array();
|
||||
}
|
||||
if (empty($includes)) continue;
|
||||
for ($i = 0; isset($includes[$i]); $i++) {
|
||||
$inc = $includes[$i];
|
||||
if (isset($seen[$inc])) {
|
||||
trigger_error(
|
||||
"Circular inclusion detected in $col_i collection",
|
||||
E_USER_ERROR
|
||||
);
|
||||
continue;
|
||||
} else {
|
||||
$seen[$inc] = true;
|
||||
}
|
||||
if (!isset($cols[$inc])) {
|
||||
trigger_error(
|
||||
"Collection $col_i tried to include undefined ".
|
||||
"collection $inc", E_USER_ERROR);
|
||||
continue;
|
||||
}
|
||||
foreach ($cols[$inc] as $module) {
|
||||
if (is_array($module)) { // another inclusion!
|
||||
foreach ($module as $inc2) $includes[] = $inc2;
|
||||
continue;
|
||||
}
|
||||
$cols[$col_i][] = $module; // merge in the other modules
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// replace with real modules, invert module from list to
|
||||
// assoc array of module name to module instance
|
||||
foreach ($cols as $col_i => $col) {
|
||||
$ignore_global = false;
|
||||
$order = array();
|
||||
foreach ($col as $module_i => $module) {
|
||||
unset($cols[$col_i][$module_i]);
|
||||
if (is_array($module)) {
|
||||
trigger_error("Illegal inclusion array at index".
|
||||
" $module_i found collection $col_i, inclusion".
|
||||
" arrays must be at start of collection (index 0)",
|
||||
E_USER_ERROR);
|
||||
continue;
|
||||
}
|
||||
if ($module_i === '*' && $module === false) {
|
||||
$ignore_global = true;
|
||||
continue;
|
||||
}
|
||||
if (!isset($this->modules[$module])) {
|
||||
trigger_error(
|
||||
"Collection $col_i references undefined ".
|
||||
"module $module",
|
||||
E_USER_ERROR
|
||||
);
|
||||
continue;
|
||||
}
|
||||
$module = $this->modules[$module];
|
||||
$cols[$col_i][$module->name] = $module;
|
||||
$order[$module->name] = $module->order;
|
||||
}
|
||||
array_multisort(
|
||||
$order, SORT_ASC, SORT_NUMERIC, $cols[$col_i]
|
||||
);
|
||||
if ($ignore_global) $cols[$col_i]['*'] = false;
|
||||
}
|
||||
|
||||
// delete pseudo-collections
|
||||
foreach ($cols as $col_i => $col) {
|
||||
if ($col_i[0] == '_') unset($cols[$col_i]);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves the doctype from the configuration object
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user