1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 3.1.1, unknown release date
13 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
14 and height/width HTML with %HTML.MaxImgLength.
15 ! %URI.SecureMunge for secure URI munging (as opposed to %URI.Munge). Be sure
16 to set %URI.SecureMungeSecretKey when using this directive. Thanks Chris
17 for sponsoring this feature.
18 ! Implemented post URI filtering. Set member variable $post to true to set
20 ! Allow modules to define injectors via $info_injector. Injectors are
21 automatically disabled if injector's needed elements are not found.
22 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
23 - Disable percent height/width attributes for img
24 - AttrValidator operations are now atomic; updates to attributes are not
25 manifest in token until end of operations. This prevents naughty internal
26 code from directly modifying CurrentToken when they're not supposed to.
27 - Percent encoding checks enabled for URI query and fragment
28 - Fix stray backslashes in font-family; CSS Unicode character escapes are
29 now properly resolved (although *only* in font-family).
30 - Improve parseCDATA algorithm to take into account newline normalization
31 - Account for browser confusion between Yen character and backslash in
32 Shift_JIS encoding. This fix generalizes to any other encoding which is not
33 a strict superset of printable ASCII.
34 - Fix missing configuration parameter in Generator calls. Thanks vs for the
36 - Improved adherence to Unicode by checking for non-character codepoints.
37 Thanks Geoffrey Sneddon for reporting. This may result in degraded
38 performance for extremely large inputs.
39 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
40 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
42 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
43 to __construct($min, $max). __construct(true) is equivalent to
45 . Added HTMLPurifier_AttrDef_Switch class
46 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
47 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
48 get this called with the configuration object. All modules now
49 use this rather than __construct(), although legacy code using constructors
50 will still work--the new format, however, lets modules access the
51 configuration object for HTML namespace dependant tweaks.
52 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
53 . ConfigSchema data-structure heavily optimized; on average it uses a third
54 the memory it did previously. The interface has changed accordingly,
55 consult changes to HTMLPurifier_Config for details.
56 . Variable parsing types now are magic integers instead of strings
57 . Added benchmark for ConfigSchema
58 . HTMLPurifier_Generator requires $config and $context parameters. If you
59 don't know what they should be, use HTMLPurifier_Config::createDefault()
60 and new HTMLPurifier_Context().
61 . Printers now properly distinguish between output configuration, and
62 target configuration. This is not applicable to scripts using
63 the Printers for HTML Purifier related tasks.
64 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
65 fatal errors will ensue.
66 . URIFilter->prepare can return false in order to abort loading of the filter
67 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
70 3.1.0, released 2008-05-18
71 # Unnecessary references to objects (vestiges of PHP4) removed from method
72 signatures. The following methods do not need references when assigning from
73 them and will result in E_STRICT errors if you try:
74 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
75 + HTMLPurifier_ConfigSchema::instance()
76 + HTMLPurifier_DefinitionCacheFactory::instance()
77 + HTMLPurifier_DefinitionCacheFactory->create()
78 + HTMLPurifier_DoctypeRegistry->register()
79 + HTMLPurifier_DoctypeRegistry->get()
80 + HTMLPurifier_HTMLModule->addElement()
81 + HTMLPurifier_HTMLModule->addBlankElement()
82 + HTMLPurifier_LanguageFactory::instance()
83 # Printer_ConfigForm's get*() functions were static-ified
84 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
85 form of tag@attr, NOT tag.attr (which will throw an error and won't do
86 anything). This is for forwards compatibility with XML; you'd do best
87 to migrate an %HTML.AllowedAttributes directives to this syntax too.
88 ! Allow index to be false for config from form creation
89 ! Added HTMLPurifier::VERSION constant
90 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
91 and allows for version numbers like "3.1.0-dev".
92 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
93 ! HTML Purifier's URI handling is a lot more robust, with much stricter
94 validation checks and better percent encoding handling.
95 ! Bootstrap autoloader deals more robustly with classes that don't exist,
96 preventing class_exists($class, true) from barfing.
97 - InterchangeBuilder now alphabetizes its lists
98 - Validation error in configdoc output fixed
99 - Iconv and other encoding errors muted even with custom error handlers that
100 do not honor error_reporting
101 - Add protection against imagecrash attack with CSS height/width
102 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
103 - Fixed and revamped broken ConfigForm smoketest
104 - Bug with bool/null fields in Printer_ConfigForm fixed
105 - Bug with global forbidden attributes fixed
106 - Improved error messages for allowed and forbidden HTML elements and attributes
107 - Missing (or null) in configdoc documentation restored
108 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
109 of DOM), HTML Purifier punts to DirectLex
110 - Fatal error with unserialization of ScriptRequired
111 - Created directories are now chmod'ed properly
112 - Fixed bug with fallback languages in LanguageFactory
113 - Standalone testing setup properly with autoload
114 . Out-of-date documentation revised
115 . UTF-8 encoding check optimization as suggested by Diego
116 . HTMLPurifier_Error removed in favor of exceptions
117 . More copy() function removed; should use clone instead
118 . More extensive unit tests for HTMLDefinition
119 . assertPurification moved to central harness
120 . HTMLPurifier_Generator accepts $config and $context parameters during
121 instantiation, not runtime
122 . Double-quotes outside of attribute values are now unescaped
124 3.1.0rc1, released 2008-04-22
125 # Autoload support added. Internal require_once's removed in favor of an
126 explicit require list or autoloading. To use HTML Purifier,
127 you must now either use HTMLPurifier.auto.php
128 or HTMLPurifier.includes.php; setting the include path and including
129 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
130 as well to register our autoload handler (or modify your autoload function
131 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
132 HTMLPurifier.safe-includes.php for a less performance friendly but more
133 user-friendly library load.
134 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
135 information is stored in the ConfigSchema directory, and the
136 maintenance/generate-schema-cache.php generates the schema.ser file, which
137 is now instantiated. Support for userland schema changes coming soon!
138 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
139 alias; to get rid of these errors just modify your configuration to use
140 the new directive name.
141 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
142 enabled using %Filter.$filter_name or by setting your own filters using
144 # Directive-level safety properties superceded in favor of module-level
145 safety. Internal method HTMLModule->addElement() has changed, although
146 the externally visible HTMLDefinition->addElement has *not* changed.
147 ! Extra utility classes for testing and non-library operations can
148 be found in extras/. Specifically, these are FSTools and ConfigDoc.
149 You may find a use for these in your own project, but right now they
150 are highly experimental and volatile.
151 ! Integration with PHPT allows for automated smoketests
152 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
153 by Chris. You can enable them with %HTML.Proprietary if your client
155 ! Support for !important CSS cascade modifier. By default, this will be stripped
156 from CSS, but you can enable it using %CSS.AllowImportant
157 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
159 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
160 Developer error (not enduser error) can cause these to be triggered.
161 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
162 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
163 mucking around with HTMLPurifier_CSSDefinition
164 ! ConfigDoc output has been enhanced with version and deprecation info.
165 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
166 - Autoclose now operates iteratively, i.e. <span><span><div> now has
167 both span tags closed.
168 - Various HTMLPurifier_Config convenience functions now accept another parameter
169 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
171 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
172 - Fix bug in ExtractStyleBlocks with comments in style tags
173 - Fix bug in comment parsing for DirectLex
174 - Flush output now displayed when in command line mode for unit tester
175 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
176 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
177 on the same element without emitting errors.
178 - Fixed fatal error in PH5P lexer with invalid tag names
179 . Plugins now get their own changelogs according to project conventions.
180 . Convert tokens to use instanceof, reducing memory footprint and
181 improving comparison speed.
182 . Dry runs now supported in SimpleTest; testing facilities improved
183 . Bootstrap class added for handling autoloading functionality
184 . Implemented recursive glob at FSTools->globr
185 . ConfigSchema now has instance methods for all corresponding define*
187 . A couple of new historical maintenance scripts were added.
188 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
189 . tests/index.php can now be run from any directory.
190 . HTMLPurifier_Token subclasses split into seperate files
191 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
192 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
193 . New --php=php flag added, allows PHP executable to be specified (command
195 . htmlpurifier_add_test() preferred method to translate test files in to
196 classes, because it handles PHPT files too.
197 . Debugger class is deprecated and will be removed soon.
198 . Command line argument parsing for testing scripts revamped, now --opt value
200 . Smoketests now cleanup after magic quotes
201 . Generator now can output comments (however, comments are still stripped
202 from HTML Purifier output)
203 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
204 HTMLPurifier_VarParser->parse()
205 . Integers auto-cast into float type by VarParser.
206 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
207 during cache generation
208 . Reordered script calls in maintenance/flush.php
209 . Command line scripts now honor exit codes
210 . When --flush fails in unit testers, abort tests and print message
211 . Improved documentation in docs/dev-flush.html about the maintenance scripts
212 . copy() methods removed in favor of clone keyword
214 3.0.0, released 2008-01-06
215 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
216 until PHP 4 is completely deprecated, but no new features will be added
218 + Visibility declarations added
219 + Constructor methods renamed to __construct()
220 + PHP4 reference cruft removed (in progress)
221 ! CSS properties are now case-insensitive
222 ! DefinitionCacheFactory now can register new implementations
223 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
224 documents and cleaning their contents up. Requires the CSSTidy library
225 <http://csstidy.sourceforge.net/>. You can access the blocks with the
226 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
227 The output CSS can also be "scoped" for a specific element, use:
228 %Filter.ExtractStyleBlocksScope
229 ! Experimental support for some proprietary CSS attributes allowed:
230 opacity (and all of the browser-specific equivalents) and scrollbar colors.
231 Enable by setting %CSS.Proprietary to true.
232 - Colors missing # but in hex form will be corrected
233 - CSS Number algorithm improved
234 - Unit testing and multi-testing now on steroids: command lines,
235 XML output, and other goodies now added.
236 . Unit tests for Injector improved
238 + HTMLPurifier_AttrDef_CSS_AlphaValue
239 + HTMLPurifier_AttrDef_CSS_Filter
240 . Multitest now has a file docblock
242 2.1.3, released 2007-11-05
243 ! tests/multitest.php allows you to test multiple versions by running
244 tests/index.php through multiple interpreters using `phpv` shell
245 script (you must provide this script!)
246 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
248 - Injector algorithm further refined: off-by-one error regarding skip
249 counts for dormant injectors fixed
250 - Corrective blockquote definition now enabled for HTML 4.01 Strict
251 - Fatal error when <img> tag (or any other element with required attributes)
252 has 'id' attribute fixed, thanks NykO18 for reporting
253 - Fix warning emitted when a non-supported URI scheme is passed to the
254 MakeAbsolute URIFilter, thanks NykO18 (again)
255 - Further refine AutoParagraph injector. Behavior inside of elements
256 allowing paragraph tags clarified: only inline content delimeted by
257 double newlines (not block elements) are paragraphed.
258 - Buggy treatment of end tags of elements that have required attributes
259 fixed (does not manifest on default tag-set)
260 - Spurious internal content reorganization error suppressed
261 - HTMLDefinition->addElement now returns a reference to the created
262 element object, as implied by the documentation
263 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
264 - Fix a theoretical class of infinite loops from DirectLex reported
266 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
268 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
269 HTMLDefinition errors, this may indicate problems with error-collecting
271 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
272 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
273 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
274 to better communicate its purpose
275 . Error unit tests can now specify the expectation of no errors. Future
276 iterations of the harness will be extremely strict about what errors
278 . Extend Injector hooks to allow for more powerful injector routines
279 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
281 . Doxygen configuration file updated, with minor improvements
282 . Test runner now checks for similarly named files in conf/ directory too.
283 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
285 . Maintenance script for generating PH5P patch added, original PH5P source
286 file also added under version control
287 . Full unit test runner script title made more descriptive with PHP version
288 . Updated INSTALL file to state that 4.3.7 is the earliest version we
291 2.1.2, released 2007-09-03
292 ! Implemented Object module for trusted users
293 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
295 require_once 'HTMLPurifier/Lexer/PH5P.php';
296 $config->set('Core', 'LexerImpl', 'PH5P');
297 Note that this Lexer introduces some classes not in the HTMLPurifier
298 namespace. Also, this is PHP5 only.
299 ! CSS property border-spacing implemented
300 - Fix non-visible parsing error in DirectLex with empty tags that have
301 slashes inside attribute values.
302 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
303 accepted as valid CSS. Usually non-visible, because this styling is the
304 default for tables in most browsers. Thanks Brett Zamir for pointing
306 - Fix validation errors in configuration form
307 - Hammer out a bunch of edge-case bugs in the standalone distribution
308 - Inclusion reflection removed from URISchemeRegistry; you must manually
309 include any new schema files you wish to use
310 - Numerous typo fixes in documentation thanks to Brett Zamir
311 . Unit test refactoring for one logical test per test function
312 . Config and context parameters in ComplexHarness deprecated: instead, edit
313 the $config and $context member variables
314 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
315 really make a difference, but is good for completeness sake
316 . merge-library.php script refactored for greater code reusability and
319 2.1.1, released 2007-08-04
320 - Fix show-stopper bug in %URI.MakeAbsolute functionality
321 - Fix PHP4 syntax error in standalone version
322 . Add prefix directory to include path for standalone, this prevents
323 other installations from clobbering the standalone's URI schemes
324 . Single test methods can be invoked by prefixing with __only
326 2.1.0, released 2007-08-02
327 # flush-htmldefinition-cache.php superseded in favor of a generic
328 flush-definition-cache.php script, you can clear a specific cache
329 by passing its name as a parameter to the script
330 ! Phorum mod implemented for HTML Purifier
331 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
332 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
333 for PHP4 (DirectLex).
334 ! Standalone file now available, which greatly reduces the amount of
335 includes (although there are still a few files that reside in the
337 ! Relative URIs can now be transformed into their absolute equivalents
338 using %URI.Base and %URI.MakeAbsolute
339 ! Ruby implemented for XHTML 1.1
340 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
342 ! UTF-8 font names now supported in CSS
343 - AutoFormatters emit friendly error messages if tags or attributes they
345 - ConfigForm's compactification of directive names is now configurable
346 - AutoParagraph autoformatter algorithm refined after field-testing
347 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
349 - Contents of <style> tags removed by default when tags are removed
350 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
351 for output cache invalidation
352 . ConfigForm printer now can retrieve CSS and JS files as strings, in
353 case HTML Purifier's directory is not publically accessible
354 . Introduce new text/itext configuration directive values: these represent
355 longer strings that would be more appropriately edited with a textarea
356 . Allow newlines to act as separators for lists, hashes, lookups and
358 . ConfigForm generates textareas instead of text inputs for lists, hashes,
359 lookups, text and itext fields
360 . Hidden element content removal genericized: %Core.HiddenElements can
361 be used to customize this behavior, by default <script> and <style> are
363 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
364 . Custom ChildDef added to default include list
365 . URIScheme reflection improved: will not attempt to include file if class
366 already exists. May clobber autoload, so I need to keep an eye on it
367 . ConfigSchema heavily optimized, will only collect information and validate
368 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
369 . AttrDef_URI unit tests and implementation refactored
370 . benchmarks/ directory now protected from public view with .htaccess file;
371 run the tests via command line
372 . URI scheme is munged off if there is no authority and the scheme is the
374 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
375 . Interface for URIScheme changed
376 . Generic URI object to hold components of URI added, most systems involved
377 in URI validation have been migrated to use it
378 . Custom filtering for URIs factored out to URIDefinition interface for
379 maximum extensibility
381 2.0.1, released 2007-06-27
382 ! Tag auto-closing now based on a ChildDef heuristic rather than a
383 manually set auto_close array; some behavior may change
384 ! Experimental AutoFormat functionality added: auto-paragraph and
385 linkify your HTML input by setting %AutoFormat.AutoParagraph and
386 %AutoFormat.Linkify to true
387 ! Newlines normalized internally, and then converted back to the
388 value of PHP_EOL. If this is not desired, set your newline format
389 using %Output.Newline.
390 ! Beta error collection, messages are implemented for the most generic
391 cases involving Lexing or Strategies
392 - Clean up special case code for <script> tags
393 - Reorder includes for DefinitionCache decorators, fixes a possible
395 - Fixed bug where manually modified definitions were not saved via cache
396 (mostly harmless, except for the fact that it would be a little slower)
397 - Configuration objects with different serials do not clobber each
398 others when revision numbers are unequal
399 - Improve Serializer DefinitionCache directory permissions checks
400 - DefinitionCache no longer throws errors when it encounters old
401 serial files that do not conform to the current style
402 - Stray xmlns attributes removed from configuration documentation
403 - configForm.php smoketest no longer has XSS vulnerability due to
404 unescaped print_r output
405 - Printer adheres to configuration's directives on output format
406 - Fix improperly named form field in ConfigForm printer
407 . Rewire some test-cases to swallow errors rather than expect them
408 . HTMLDefinition printer updated with some of the new attributes
409 . DefinitionCache keys reordered to reflect precedence: version number,
410 hash, then revision number
411 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
412 . Interlinking in configuration documentation added using
413 Injector_PurifierLinkify
414 . Directives now keep track of aliases to themselves
415 . Error collector now requires a severity to be passed, use PHP's internal
416 error constants for this
417 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
418 much easier selective embedding of configuration values
419 . Doctype objects now accept public and system DTD identifiers
420 . %HTML.Doctype is now constrained by specific values, to specify a custom
421 doctype use new %HTML.CustomDoctype
422 . ConfigForm truncates long directives to keep the form small, and does
423 not re-output namespaces
425 2.0.0, released 2007-06-20
426 # Completely refactored HTMLModuleManager, decentralizing safety
428 # Transform modules changed to Tidy modules, which offer more flexibility
429 and better modularization
430 # Configuration object now finalizes itself when a read operation is
431 performed on it, ensuring that its internal state stays consistent.
432 To revert this behavior, you can set the $autoFinalize member variable
433 off, but it's not recommended.
434 # New compact syntax for AttrDef objects that can be used to instantiate
435 new objects via make()
436 # Definitions (esp. HTMLDefinition) are now cached for a significant
437 performance boost. You can disable caching by setting %Core.DefinitionCache
438 to null. You CANNOT edit raw definitions without setting the corresponding
439 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
440 # Contents between <script> tags are now completely removed if <script>
442 # Prototype-declarations for Lexer removed in favor of configuration
443 determination of Lexer implementations.
444 ! HTML Purifier now works in PHP 4.3.2.
445 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
447 ! Configuration directives that accept hashes now allow new string
448 format: key1:value1,key2:value2
449 ! ConfigDoc now factored into OOP design
450 ! All deprecated elements now natively supported
451 ! Implement TinyMCE styled whitelist specification format in
453 ! Config object gives more friendly error messages when things go wrong
454 ! Advanced API implemented: easy functions for creating elements (addElement)
455 and attributes (addAttribute) on HTMLDefinition
456 ! Add native support for required attributes
457 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
458 - DOMLex will not emit errors when a custom error handler that does not
459 honor error_reporting is used
460 - StrictBlockquote child definition refrains from wrapping whitespace
462 - Bug resulting from tag transforms to non-allowed elements fixed
463 - ChildDef_Custom's regex generation has been improved, removing several
465 . Unit test for ElementDef created, ElementDef behavior modified to
467 . Added convenience functions for HTMLModule constructors
468 . AttrTypes now has accessor functions that should be used instead
469 of directly manipulating info
470 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
471 . Add extra protection in AttrDef_URI against phantom Schemes
472 . Doctype object added to HTMLDefinition which describes certain aspects
473 of the operational document type
474 . Lexer is now pre-emptively included, with a conditional include for the
476 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
477 . DirectLex can now track line-numbers
478 . Preliminary error collector is in place, although no code actually reports
480 . Factor out most of ValidateAttributes to new AttrValidator class
482 1.6.1, released 2007-05-05
483 ! Support for more deprecated attributes via transformations:
484 + hspace and vspace in img
485 + size and noshade in hr
488 + align in caption, table, img and hr
489 + type in ul, ol and li
490 ! DirectLex now preserves text in which a < bracket is followed by
491 a non-alphanumeric character. This means that certain emoticons
493 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
494 images will hang around with an empty src
495 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
497 ! CSS property white-space now allows nowrap (supported in all modern
498 browsers) but not others (which have spotty browser implementations)
499 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
500 lang is now moved over to xml:lang.
501 ! Attribute transformation smoketest available at smoketests/attrTransform.php
502 ! Transformation of font's size attribute now handles super-large numbers
503 - Possibly fatal bug with __autoload() fixed in module manager
504 - Invert HTMLModuleManager->addModule() processing order to check
505 prefixes first and then the literal module
506 - Empty strings get converted to empty arrays instead of arrays with
507 an empty string in them.
508 - Merging in attribute lists now works.
509 . Demo script removed: it has been added to the website's repository
510 . Basic.php script modified to work out of the box
511 . Refactor AttrTransform classes to reduce duplication
512 . AttrTransform_TextAlign axed in favor of a more general
513 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
514 see how the new equivalent is implemented
515 . Unit tests now use exclusively assertIdentical
517 1.6.0, released 2007-04-01
518 ! Support for most common deprecated attributes via transformations:
519 + bgcolor in td, th, tr and table
522 + width in td, th and hr
524 ! Support for CSS attribute 'height' added
525 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
526 and %Attr.AllowedRev to activate
527 - You can define ID blacklists using regular expressions via
528 %Attr.IDBlacklistRegexp
529 - Error messages are emitted when you attempt to "allow" elements or
530 attributes that HTML Purifier does not support
531 - Fix segfault in unit test. The problem is not very reproduceable and
532 I don't know what causes it, but a six line patch fixed it.
534 1.5.0, released 2007-03-23
535 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
536 doesn't actually do anything yet, but keep your eyes peeled.
537 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
538 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
539 I am loathe to release beta quality APIs, but this is exactly that;
540 don't use the internal interfaces if you're not willing to do migration
542 - Allow 'x' subtag in language codes
543 - Fixed buggy chameleon-support for ins and del
544 . Added support for IDREF attributes (i.e. for)
545 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
546 . Removed context variable ParentType, replaced with IsInline, which
547 is false when you're not inline and an integer of the parent that
548 caused you to become inline when you are (so possibly zero)
549 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
550 and HTMLDefinition->content_sets
551 . StrictBlockquote now reports what elements its supposed to allow,
552 rather than what it does allow
553 . Removed HTMLDefinition->info_flow_elements in favor of
554 HTMLDefinition->content_sets['Flow']
555 . Removed redundant "exclusionary" definitions from DTD roster
556 . StrictBlockquote now requires a construction parameter as if it
557 were an Required ChildDef, this is the "real" set of allowed elements
558 . AttrDef partitioned into HTML, CSS and URI segments
559 . Modify Youtube filter regexp to be multiline
560 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
561 some edge cases where a DOMDocument class exists in a PHP4 environment
562 due to DOM XML extension.
564 1.4.1, released 2007-01-21
565 ! docs/enduser-youtube.html updated according to new functionality
566 - YouTube IDs can have underscores and dashes
568 1.4.0, released 2007-01-21
569 ! Implemented list-style-image, URIs now allowed in list-style
570 ! Implemented background-image, background-repeat, background-attachment
571 and background-position CSS properties. Shorthand property background
572 supports all of these properties.
573 ! Configuration documentation looks nicer
574 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
575 characters while %Core.Encoding is set to a non-UTF-8 encoding.
576 ! Support for configuration directive aliases added
577 ! Config object can now be instantiated from ini files
578 ! YouTube preservation code added to the core, with two lines of code
579 you can add it as a filter to your code. See smoketests/preserveYouTube.php
581 ! Moved SLOW to docs/enduser-slow.html and added code examples
582 - Replaced version check with functionality check for DOM (thanks Stephen
584 . Added smoketest 'all.php', which loads all other smoketests via frames
585 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
586 . Added convenient single test selector form on test runner
588 1.3.2, released 2006-12-25
589 ! HTMLPurifier object now accepts configuration arrays, no need to manually
590 instantiate a configuration object
591 ! Context object now accessible to outside
592 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
593 also corresponding smoketest preserveYouTube.php.
594 ! Added purifyArray(), which takes a list of HTML and purifies it all
595 ! Added static member variable $version to HTML Purifier with PHP-compatible
596 version number string.
597 - Fixed fatal error thrown by upper-cased language attributes
598 - printDefinition.php: added labels, added better clarification
599 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
600 a HTMLPurifier_Config object.
602 1.3.1, released 2006-12-06
603 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
604 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
605 (thanks to .mario for reporting this)
606 . Standardized all attribute handling variables to attr, made it plural
608 1.3.0, released 2006-11-26
609 # Invalid images are now removed, rather than replaced with a dud
610 <img src="" alt="Invalid image" />. Previous behavior can be restored
611 with new directive %Core.RemoveInvalidImg set to false.
612 ! (X)HTML Strict now supported
613 + Transparently handles inline elements in block context (blockquote)
614 ! Added GET method to demo for easier validation, added 50kb max input size
615 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
616 ! New directive %HTML.Parent, allows you to only allow inline content
617 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
618 users narrow the set of allowed tags
619 ! <li value="4"> and <ul start="2"> now allowed in loose mode
620 ! New directives %URI.DisableExternalResources and %URI.DisableResources
621 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
622 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
623 service to avoid PageRank leaks or warn users that they are exiting your site.
624 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
625 the configuration settings and see how the internal rules are affected.
626 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
627 xssAttacks.php smoketest updated accordingly.
628 - Added missing type to ChildDef_Chameleon
629 - Remove Tidy option from demo if there is not Tidy available
630 . ChildDef_Required guards against empty tags
631 . Lookup table HTMLDefinition->info_flow_elements added
632 . Added peace-of-mind variable initialization to Strategy_FixNesting
633 . Added HTMLPurifier->info_parent_def, parent child processing made special
634 . Added internal documents briefly summarizing future progression of HTML
635 . HTMLPurifier_Config->getBatch($namespace) added
636 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
637 . Refactored ChildDef classes into their own files
639 1.2.0, released 2006-11-19
640 # ID attributes now disabled by default. New directives:
641 + %HTML.EnableAttrID - restores old behavior by allowing IDs
642 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
643 so that they don't collide with your IDs
644 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
645 instances of user content on the page
646 + Profuse documentation on how to use these available in docs/enduser-id.txt
647 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
648 ! Added percent encoding normalization
649 ! XSS attacks smoketest given facelift
650 ! Configuration documentation now has table of contents
651 ! Added %URI.DisableExternal, which prevents links to external websites. You
652 can also use %URI.Host to permit absolute linking to subdomains
653 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
654 - Type variable in HTMLDefinition was not being set properly, fixed
655 - Documentation updated
656 + TODO added request Phalanger
657 + TODO added request Native compression
658 + TODO added request Remove redundant tags
659 + TODO added possible plaintext formatter for HTML Purifier documentation
660 + Updated ConfigDoc TODO
661 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
663 + Revamped documentation into HTML, along with misc updates
664 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
665 to retrieve a non-existent variable
666 . Switched to purify()-wide Context object registry
667 . Refactored unit tests to minimize duplication
668 . XSS attack sheet updated
669 . configdoc.xml now has xml:space attached to default value nodes
670 . Allow configuration directives to permit null values
671 . Cleaned up test-cases to remove unnecessary swallowErrors()
673 1.1.2, released 2006-09-30
674 ! Add HTMLPurifier.auto.php stub file that configures include_path
675 - Documentation updated
676 + INSTALL document rewritten
677 + TODO added semi-lossy conversion
678 + API Doxygen docs' file exclusions updated
679 + Added notes on HTML versus XML attribute whitespace handling
680 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
681 + Noted that config object's definitions are cached versions
682 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
683 - ftp:// URIs now have their typecodes checked
684 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
685 . Line endings standardized throughout project (svn:eol-style standardized)
686 . Refactored parseData() to general Lexer class
687 . Tester named "HTML Purifier" not "HTMLPurifier"
689 1.1.1, released 2006-09-24
690 ! Configuration option to optionally Tidy up output for indentation to make up
691 for dropped whitespace by DOMLex (pretty-printing for the entire application
692 should be done by a page-wide Tidy)
693 - Various documentation updates
694 - Fixed parse error in configuration documentation script
695 - Fixed fatal error in benchmark scripts, slightly augmented
696 - As far as possible, whitespace is preserved in-between table children
697 - Sample test-settings.php file included
699 1.1.0, released 2006-09-16
700 ! Directive documentation generation using XSLT
701 ! XHTML can now be turned off, output becomes <br>
702 - Made URI validator more forgiving: will ignore leading and trailing
703 quotes, apostrophes and less than or greater than signs.
704 - Enforce alphanumeric namespace and directive names for configuration.
705 - Table child definition made more flexible, will fix up poorly ordered elements
706 . Renamed ConfigDef to ConfigSchema
708 1.0.1, released 2006-09-04
709 - Fixed slight bug in DOMLex attribute parsing
710 - Fixed rejection of case-insensitive configuration values when there is a
711 set of allowed values. This manifested in %Core.Encoding.
712 - Fixed rejection of inline style declarations that had lots of extra
713 space in them. This manifested in TinyMCE.
715 1.0.0, released 2006-09-01
716 ! Shorthand CSS properties implemented: font, border, background, list-style
717 ! Basic color keywords translated into hexadecimal values
718 ! Table CSS properties implemented
719 ! Support for charsets other than UTF-8 (defined by iconv)
720 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
721 - Fixed broken numeric entity conversion
722 - API documentation completed
723 . (HTML|CSS)Definition de-singleton-ized
725 1.0.0beta, released 2006-08-16
726 ! First public release, most functionality implemented. Notable omissions are:
727 + Shorthand CSS properties
728 + Table CSS properties
729 + Deprecated attribute transformations