1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 3.1.2, unknown release date
13 ! %Output.AttrSort for when you need your attributes in alphabetical order to
14 deal with a bug in FCKEditor. Requested by frank farmer.
15 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
16 ! Proper support for name attribute. It is now allowed and equivalent to the id
17 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
18 is heavy (for all doctypes).
19 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
20 use on hand-written HTML.
21 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
22 the strategy to be used, standalone, on untrusted input.
23 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
24 processing of left angled brackets in smileys and other whatnot.
25 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
26 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
27 the --only-phpt parameter, although for backwards-compatibility the flag
29 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
30 the other involving an undefined $is_folder error.
31 - Throw error when %Core.Encoding is set to a spurious value. Previously,
32 this errored silently and returned false.
33 - Redirected stderr to stdout for flush error output.
34 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
36 - Do not re-munge URL if the output URL has the same host as the input URL.
38 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
39 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
40 - Fix bug with inline elements in blockquotes conflicting with strict doctype
41 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
42 for more interesting filter-backtracking
43 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
44 index to reprocess tokens.
45 . StringHashParser now allows for multiline sections with "empty" content;
46 previously the section would remain undefined.
47 . Added --quick option to multitest.php, which tests only the most recent
48 release for each series.
49 . Added --distro option to multitest.php, which accepts either 'normal' or
50 'standalone'. This supercedes --exclude-normal and --exclude-standalone
52 3.1.1, released 2008-06-19
53 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
54 In order to enable this again, please set %URI.MungeResources to true.
55 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
56 and height/width HTML with %HTML.MaxImgLength.
57 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
58 for sponsoring this feature. Check out the corresponding documentation
59 for details. (Att Nightly testers: The API for this feature changed before
60 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
61 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
62 ! Implemented post URI filtering. Set member variable $post to true to set
64 ! Allow modules to define injectors via $info_injector. Injectors are
65 automatically disabled if injector's needed elements are not found.
66 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
67 Thanks Chris for sponsoring. If you've been using ad hoc code from the
68 forums, PLEASE use this instead.
69 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
70 embedded, tag name, attribute name, CSS property name). See %URI.Munge
71 for more details. Requested by Jochem Blok.
72 - Disable percent height/width attributes for img.
73 - AttrValidator operations are now atomic; updates to attributes are not
74 manifest in token until end of operations. This prevents naughty internal
75 code from directly modifying CurrentToken when they're not supposed to.
76 This semantics change was requested by frank farmer.
77 - Percent encoding checks enabled for URI query and fragment
78 - Fix stray backslashes in font-family; CSS Unicode character escapes are
79 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
81 - Improve parseCDATA algorithm to take into account newline normalization
82 - Account for browser confusion between Yen character and backslash in
83 Shift_JIS encoding. This fix generalizes to any other encoding which is not
84 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
85 - Fix missing configuration parameter in Generator calls. Thanks vs for the
87 - Improved adherence to Unicode by checking for non-character codepoints.
88 Thanks Geoffrey Sneddon for reporting. This may result in degraded
89 performance for extremely large inputs.
90 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
92 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
93 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
95 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
96 to __construct($min, $max). __construct(true) is equivalent to
98 . Added HTMLPurifier_AttrDef_Switch class
99 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
100 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
101 get this called with the configuration object. All modules now
102 use this rather than __construct(), although legacy code using constructors
103 will still work--the new format, however, lets modules access the
104 configuration object for HTML namespace dependant tweaks.
105 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
106 . ConfigSchema data-structure heavily optimized; on average it uses a third
107 the memory it did previously. The interface has changed accordingly,
108 consult changes to HTMLPurifier_Config for details.
109 . Variable parsing types now are magic integers instead of strings
110 . Added benchmark for ConfigSchema
111 . HTMLPurifier_Generator requires $config and $context parameters. If you
112 don't know what they should be, use HTMLPurifier_Config::createDefault()
113 and new HTMLPurifier_Context().
114 . Printers now properly distinguish between output configuration, and
115 target configuration. This is not applicable to scripts using
116 the Printers for HTML Purifier related tasks.
117 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
118 fatal errors will ensue.
119 . URIFilter->prepare can return false in order to abort loading of the filter
120 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
121 an external resource.
122 . %URI.Munge functionality factored out into a post-filter class.
123 . Added CurrentCSSProperty context variable during CSS validation
125 3.1.0, released 2008-05-18
126 # Unnecessary references to objects (vestiges of PHP4) removed from method
127 signatures. The following methods do not need references when assigning from
128 them and will result in E_STRICT errors if you try:
129 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
130 + HTMLPurifier_ConfigSchema::instance()
131 + HTMLPurifier_DefinitionCacheFactory::instance()
132 + HTMLPurifier_DefinitionCacheFactory->create()
133 + HTMLPurifier_DoctypeRegistry->register()
134 + HTMLPurifier_DoctypeRegistry->get()
135 + HTMLPurifier_HTMLModule->addElement()
136 + HTMLPurifier_HTMLModule->addBlankElement()
137 + HTMLPurifier_LanguageFactory::instance()
138 # Printer_ConfigForm's get*() functions were static-ified
139 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
140 form of tag@attr, NOT tag.attr (which will throw an error and won't do
141 anything). This is for forwards compatibility with XML; you'd do best
142 to migrate an %HTML.AllowedAttributes directives to this syntax too.
143 ! Allow index to be false for config from form creation
144 ! Added HTMLPurifier::VERSION constant
145 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
146 and allows for version numbers like "3.1.0-dev".
147 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
148 ! HTML Purifier's URI handling is a lot more robust, with much stricter
149 validation checks and better percent encoding handling. Thanks Gareth Heyes
150 for indicating security vulnerabilities from lax percent encoding.
151 ! Bootstrap autoloader deals more robustly with classes that don't exist,
152 preventing class_exists($class, true) from barfing.
153 - InterchangeBuilder now alphabetizes its lists
154 - Validation error in configdoc output fixed
155 - Iconv and other encoding errors muted even with custom error handlers that
156 do not honor error_reporting
157 - Add protection against imagecrash attack with CSS height/width
158 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
159 - Fixed and revamped broken ConfigForm smoketest
160 - Bug with bool/null fields in Printer_ConfigForm fixed
161 - Bug with global forbidden attributes fixed
162 - Improved error messages for allowed and forbidden HTML elements and attributes
163 - Missing (or null) in configdoc documentation restored
164 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
165 of DOM), HTML Purifier punts to DirectLex
166 - Fatal error with unserialization of ScriptRequired
167 - Created directories are now chmod'ed properly
168 - Fixed bug with fallback languages in LanguageFactory
169 - Standalone testing setup properly with autoload
170 . Out-of-date documentation revised
171 . UTF-8 encoding check optimization as suggested by Diego
172 . HTMLPurifier_Error removed in favor of exceptions
173 . More copy() function removed; should use clone instead
174 . More extensive unit tests for HTMLDefinition
175 . assertPurification moved to central harness
176 . HTMLPurifier_Generator accepts $config and $context parameters during
177 instantiation, not runtime
178 . Double-quotes outside of attribute values are now unescaped
180 3.1.0rc1, released 2008-04-22
181 # Autoload support added. Internal require_once's removed in favor of an
182 explicit require list or autoloading. To use HTML Purifier,
183 you must now either use HTMLPurifier.auto.php
184 or HTMLPurifier.includes.php; setting the include path and including
185 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
186 as well to register our autoload handler (or modify your autoload function
187 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
188 HTMLPurifier.safe-includes.php for a less performance friendly but more
189 user-friendly library load.
190 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
191 information is stored in the ConfigSchema directory, and the
192 maintenance/generate-schema-cache.php generates the schema.ser file, which
193 is now instantiated. Support for userland schema changes coming soon!
194 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
195 alias; to get rid of these errors just modify your configuration to use
196 the new directive name.
197 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
198 enabled using %Filter.$filter_name or by setting your own filters using
200 # Directive-level safety properties superceded in favor of module-level
201 safety. Internal method HTMLModule->addElement() has changed, although
202 the externally visible HTMLDefinition->addElement has *not* changed.
203 ! Extra utility classes for testing and non-library operations can
204 be found in extras/. Specifically, these are FSTools and ConfigDoc.
205 You may find a use for these in your own project, but right now they
206 are highly experimental and volatile.
207 ! Integration with PHPT allows for automated smoketests
208 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
209 by Chris. You can enable them with %HTML.Proprietary if your client
211 ! Support for !important CSS cascade modifier. By default, this will be stripped
212 from CSS, but you can enable it using %CSS.AllowImportant
213 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
215 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
216 Developer error (not enduser error) can cause these to be triggered.
217 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
218 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
219 mucking around with HTMLPurifier_CSSDefinition
220 ! ConfigDoc output has been enhanced with version and deprecation info.
221 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
222 - Autoclose now operates iteratively, i.e. <span><span><div> now has
223 both span tags closed.
224 - Various HTMLPurifier_Config convenience functions now accept another parameter
225 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
227 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
228 - Fix bug in ExtractStyleBlocks with comments in style tags
229 - Fix bug in comment parsing for DirectLex
230 - Flush output now displayed when in command line mode for unit tester
231 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
232 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
233 on the same element without emitting errors.
234 - Fixed fatal error in PH5P lexer with invalid tag names
235 . Plugins now get their own changelogs according to project conventions.
236 . Convert tokens to use instanceof, reducing memory footprint and
237 improving comparison speed.
238 . Dry runs now supported in SimpleTest; testing facilities improved
239 . Bootstrap class added for handling autoloading functionality
240 . Implemented recursive glob at FSTools->globr
241 . ConfigSchema now has instance methods for all corresponding define*
243 . A couple of new historical maintenance scripts were added.
244 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
245 . tests/index.php can now be run from any directory.
246 . HTMLPurifier_Token subclasses split into seperate files
247 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
248 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
249 . New --php=php flag added, allows PHP executable to be specified (command
251 . htmlpurifier_add_test() preferred method to translate test files in to
252 classes, because it handles PHPT files too.
253 . Debugger class is deprecated and will be removed soon.
254 . Command line argument parsing for testing scripts revamped, now --opt value
256 . Smoketests now cleanup after magic quotes
257 . Generator now can output comments (however, comments are still stripped
258 from HTML Purifier output)
259 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
260 HTMLPurifier_VarParser->parse()
261 . Integers auto-cast into float type by VarParser.
262 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
263 during cache generation
264 . Reordered script calls in maintenance/flush.php
265 . Command line scripts now honor exit codes
266 . When --flush fails in unit testers, abort tests and print message
267 . Improved documentation in docs/dev-flush.html about the maintenance scripts
268 . copy() methods removed in favor of clone keyword
270 3.0.0, released 2008-01-06
271 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
272 until PHP 4 is completely deprecated, but no new features will be added
274 + Visibility declarations added
275 + Constructor methods renamed to __construct()
276 + PHP4 reference cruft removed (in progress)
277 ! CSS properties are now case-insensitive
278 ! DefinitionCacheFactory now can register new implementations
279 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
280 documents and cleaning their contents up. Requires the CSSTidy library
281 <http://csstidy.sourceforge.net/>. You can access the blocks with the
282 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
283 The output CSS can also be "scoped" for a specific element, use:
284 %Filter.ExtractStyleBlocksScope
285 ! Experimental support for some proprietary CSS attributes allowed:
286 opacity (and all of the browser-specific equivalents) and scrollbar colors.
287 Enable by setting %CSS.Proprietary to true.
288 - Colors missing # but in hex form will be corrected
289 - CSS Number algorithm improved
290 - Unit testing and multi-testing now on steroids: command lines,
291 XML output, and other goodies now added.
292 . Unit tests for Injector improved
294 + HTMLPurifier_AttrDef_CSS_AlphaValue
295 + HTMLPurifier_AttrDef_CSS_Filter
296 . Multitest now has a file docblock
298 2.1.3, released 2007-11-05
299 ! tests/multitest.php allows you to test multiple versions by running
300 tests/index.php through multiple interpreters using `phpv` shell
301 script (you must provide this script!)
302 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
304 - Injector algorithm further refined: off-by-one error regarding skip
305 counts for dormant injectors fixed
306 - Corrective blockquote definition now enabled for HTML 4.01 Strict
307 - Fatal error when <img> tag (or any other element with required attributes)
308 has 'id' attribute fixed, thanks NykO18 for reporting
309 - Fix warning emitted when a non-supported URI scheme is passed to the
310 MakeAbsolute URIFilter, thanks NykO18 (again)
311 - Further refine AutoParagraph injector. Behavior inside of elements
312 allowing paragraph tags clarified: only inline content delimeted by
313 double newlines (not block elements) are paragraphed.
314 - Buggy treatment of end tags of elements that have required attributes
315 fixed (does not manifest on default tag-set)
316 - Spurious internal content reorganization error suppressed
317 - HTMLDefinition->addElement now returns a reference to the created
318 element object, as implied by the documentation
319 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
320 - Fix a theoretical class of infinite loops from DirectLex reported
322 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
324 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
325 HTMLDefinition errors, this may indicate problems with error-collecting
327 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
328 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
329 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
330 to better communicate its purpose
331 . Error unit tests can now specify the expectation of no errors. Future
332 iterations of the harness will be extremely strict about what errors
334 . Extend Injector hooks to allow for more powerful injector routines
335 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
337 . Doxygen configuration file updated, with minor improvements
338 . Test runner now checks for similarly named files in conf/ directory too.
339 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
341 . Maintenance script for generating PH5P patch added, original PH5P source
342 file also added under version control
343 . Full unit test runner script title made more descriptive with PHP version
344 . Updated INSTALL file to state that 4.3.7 is the earliest version we
347 2.1.2, released 2007-09-03
348 ! Implemented Object module for trusted users
349 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
351 require_once 'HTMLPurifier/Lexer/PH5P.php';
352 $config->set('Core', 'LexerImpl', 'PH5P');
353 Note that this Lexer introduces some classes not in the HTMLPurifier
354 namespace. Also, this is PHP5 only.
355 ! CSS property border-spacing implemented
356 - Fix non-visible parsing error in DirectLex with empty tags that have
357 slashes inside attribute values.
358 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
359 accepted as valid CSS. Usually non-visible, because this styling is the
360 default for tables in most browsers. Thanks Brett Zamir for pointing
362 - Fix validation errors in configuration form
363 - Hammer out a bunch of edge-case bugs in the standalone distribution
364 - Inclusion reflection removed from URISchemeRegistry; you must manually
365 include any new schema files you wish to use
366 - Numerous typo fixes in documentation thanks to Brett Zamir
367 . Unit test refactoring for one logical test per test function
368 . Config and context parameters in ComplexHarness deprecated: instead, edit
369 the $config and $context member variables
370 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
371 really make a difference, but is good for completeness sake
372 . merge-library.php script refactored for greater code reusability and
375 2.1.1, released 2007-08-04
376 - Fix show-stopper bug in %URI.MakeAbsolute functionality
377 - Fix PHP4 syntax error in standalone version
378 . Add prefix directory to include path for standalone, this prevents
379 other installations from clobbering the standalone's URI schemes
380 . Single test methods can be invoked by prefixing with __only
382 2.1.0, released 2007-08-02
383 # flush-htmldefinition-cache.php superseded in favor of a generic
384 flush-definition-cache.php script, you can clear a specific cache
385 by passing its name as a parameter to the script
386 ! Phorum mod implemented for HTML Purifier
387 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
388 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
389 for PHP4 (DirectLex).
390 ! Standalone file now available, which greatly reduces the amount of
391 includes (although there are still a few files that reside in the
393 ! Relative URIs can now be transformed into their absolute equivalents
394 using %URI.Base and %URI.MakeAbsolute
395 ! Ruby implemented for XHTML 1.1
396 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
398 ! UTF-8 font names now supported in CSS
399 - AutoFormatters emit friendly error messages if tags or attributes they
401 - ConfigForm's compactification of directive names is now configurable
402 - AutoParagraph autoformatter algorithm refined after field-testing
403 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
405 - Contents of <style> tags removed by default when tags are removed
406 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
407 for output cache invalidation
408 . ConfigForm printer now can retrieve CSS and JS files as strings, in
409 case HTML Purifier's directory is not publically accessible
410 . Introduce new text/itext configuration directive values: these represent
411 longer strings that would be more appropriately edited with a textarea
412 . Allow newlines to act as separators for lists, hashes, lookups and
414 . ConfigForm generates textareas instead of text inputs for lists, hashes,
415 lookups, text and itext fields
416 . Hidden element content removal genericized: %Core.HiddenElements can
417 be used to customize this behavior, by default <script> and <style> are
419 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
420 . Custom ChildDef added to default include list
421 . URIScheme reflection improved: will not attempt to include file if class
422 already exists. May clobber autoload, so I need to keep an eye on it
423 . ConfigSchema heavily optimized, will only collect information and validate
424 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
425 . AttrDef_URI unit tests and implementation refactored
426 . benchmarks/ directory now protected from public view with .htaccess file;
427 run the tests via command line
428 . URI scheme is munged off if there is no authority and the scheme is the
430 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
431 . Interface for URIScheme changed
432 . Generic URI object to hold components of URI added, most systems involved
433 in URI validation have been migrated to use it
434 . Custom filtering for URIs factored out to URIDefinition interface for
435 maximum extensibility
437 2.0.1, released 2007-06-27
438 ! Tag auto-closing now based on a ChildDef heuristic rather than a
439 manually set auto_close array; some behavior may change
440 ! Experimental AutoFormat functionality added: auto-paragraph and
441 linkify your HTML input by setting %AutoFormat.AutoParagraph and
442 %AutoFormat.Linkify to true
443 ! Newlines normalized internally, and then converted back to the
444 value of PHP_EOL. If this is not desired, set your newline format
445 using %Output.Newline.
446 ! Beta error collection, messages are implemented for the most generic
447 cases involving Lexing or Strategies
448 - Clean up special case code for <script> tags
449 - Reorder includes for DefinitionCache decorators, fixes a possible
451 - Fixed bug where manually modified definitions were not saved via cache
452 (mostly harmless, except for the fact that it would be a little slower)
453 - Configuration objects with different serials do not clobber each
454 others when revision numbers are unequal
455 - Improve Serializer DefinitionCache directory permissions checks
456 - DefinitionCache no longer throws errors when it encounters old
457 serial files that do not conform to the current style
458 - Stray xmlns attributes removed from configuration documentation
459 - configForm.php smoketest no longer has XSS vulnerability due to
460 unescaped print_r output
461 - Printer adheres to configuration's directives on output format
462 - Fix improperly named form field in ConfigForm printer
463 . Rewire some test-cases to swallow errors rather than expect them
464 . HTMLDefinition printer updated with some of the new attributes
465 . DefinitionCache keys reordered to reflect precedence: version number,
466 hash, then revision number
467 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
468 . Interlinking in configuration documentation added using
469 Injector_PurifierLinkify
470 . Directives now keep track of aliases to themselves
471 . Error collector now requires a severity to be passed, use PHP's internal
472 error constants for this
473 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
474 much easier selective embedding of configuration values
475 . Doctype objects now accept public and system DTD identifiers
476 . %HTML.Doctype is now constrained by specific values, to specify a custom
477 doctype use new %HTML.CustomDoctype
478 . ConfigForm truncates long directives to keep the form small, and does
479 not re-output namespaces
481 2.0.0, released 2007-06-20
482 # Completely refactored HTMLModuleManager, decentralizing safety
484 # Transform modules changed to Tidy modules, which offer more flexibility
485 and better modularization
486 # Configuration object now finalizes itself when a read operation is
487 performed on it, ensuring that its internal state stays consistent.
488 To revert this behavior, you can set the $autoFinalize member variable
489 off, but it's not recommended.
490 # New compact syntax for AttrDef objects that can be used to instantiate
491 new objects via make()
492 # Definitions (esp. HTMLDefinition) are now cached for a significant
493 performance boost. You can disable caching by setting %Core.DefinitionCache
494 to null. You CANNOT edit raw definitions without setting the corresponding
495 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
496 # Contents between <script> tags are now completely removed if <script>
498 # Prototype-declarations for Lexer removed in favor of configuration
499 determination of Lexer implementations.
500 ! HTML Purifier now works in PHP 4.3.2.
501 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
503 ! Configuration directives that accept hashes now allow new string
504 format: key1:value1,key2:value2
505 ! ConfigDoc now factored into OOP design
506 ! All deprecated elements now natively supported
507 ! Implement TinyMCE styled whitelist specification format in
509 ! Config object gives more friendly error messages when things go wrong
510 ! Advanced API implemented: easy functions for creating elements (addElement)
511 and attributes (addAttribute) on HTMLDefinition
512 ! Add native support for required attributes
513 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
514 - DOMLex will not emit errors when a custom error handler that does not
515 honor error_reporting is used
516 - StrictBlockquote child definition refrains from wrapping whitespace
518 - Bug resulting from tag transforms to non-allowed elements fixed
519 - ChildDef_Custom's regex generation has been improved, removing several
521 . Unit test for ElementDef created, ElementDef behavior modified to
523 . Added convenience functions for HTMLModule constructors
524 . AttrTypes now has accessor functions that should be used instead
525 of directly manipulating info
526 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
527 . Add extra protection in AttrDef_URI against phantom Schemes
528 . Doctype object added to HTMLDefinition which describes certain aspects
529 of the operational document type
530 . Lexer is now pre-emptively included, with a conditional include for the
532 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
533 . DirectLex can now track line-numbers
534 . Preliminary error collector is in place, although no code actually reports
536 . Factor out most of ValidateAttributes to new AttrValidator class
538 1.6.1, released 2007-05-05
539 ! Support for more deprecated attributes via transformations:
540 + hspace and vspace in img
541 + size and noshade in hr
544 + align in caption, table, img and hr
545 + type in ul, ol and li
546 ! DirectLex now preserves text in which a < bracket is followed by
547 a non-alphanumeric character. This means that certain emoticons
549 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
550 images will hang around with an empty src
551 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
553 ! CSS property white-space now allows nowrap (supported in all modern
554 browsers) but not others (which have spotty browser implementations)
555 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
556 lang is now moved over to xml:lang.
557 ! Attribute transformation smoketest available at smoketests/attrTransform.php
558 ! Transformation of font's size attribute now handles super-large numbers
559 - Possibly fatal bug with __autoload() fixed in module manager
560 - Invert HTMLModuleManager->addModule() processing order to check
561 prefixes first and then the literal module
562 - Empty strings get converted to empty arrays instead of arrays with
563 an empty string in them.
564 - Merging in attribute lists now works.
565 . Demo script removed: it has been added to the website's repository
566 . Basic.php script modified to work out of the box
567 . Refactor AttrTransform classes to reduce duplication
568 . AttrTransform_TextAlign axed in favor of a more general
569 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
570 see how the new equivalent is implemented
571 . Unit tests now use exclusively assertIdentical
573 1.6.0, released 2007-04-01
574 ! Support for most common deprecated attributes via transformations:
575 + bgcolor in td, th, tr and table
578 + width in td, th and hr
580 ! Support for CSS attribute 'height' added
581 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
582 and %Attr.AllowedRev to activate
583 - You can define ID blacklists using regular expressions via
584 %Attr.IDBlacklistRegexp
585 - Error messages are emitted when you attempt to "allow" elements or
586 attributes that HTML Purifier does not support
587 - Fix segfault in unit test. The problem is not very reproduceable and
588 I don't know what causes it, but a six line patch fixed it.
590 1.5.0, released 2007-03-23
591 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
592 doesn't actually do anything yet, but keep your eyes peeled.
593 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
594 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
595 I am loathe to release beta quality APIs, but this is exactly that;
596 don't use the internal interfaces if you're not willing to do migration
598 - Allow 'x' subtag in language codes
599 - Fixed buggy chameleon-support for ins and del
600 . Added support for IDREF attributes (i.e. for)
601 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
602 . Removed context variable ParentType, replaced with IsInline, which
603 is false when you're not inline and an integer of the parent that
604 caused you to become inline when you are (so possibly zero)
605 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
606 and HTMLDefinition->content_sets
607 . StrictBlockquote now reports what elements its supposed to allow,
608 rather than what it does allow
609 . Removed HTMLDefinition->info_flow_elements in favor of
610 HTMLDefinition->content_sets['Flow']
611 . Removed redundant "exclusionary" definitions from DTD roster
612 . StrictBlockquote now requires a construction parameter as if it
613 were an Required ChildDef, this is the "real" set of allowed elements
614 . AttrDef partitioned into HTML, CSS and URI segments
615 . Modify Youtube filter regexp to be multiline
616 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
617 some edge cases where a DOMDocument class exists in a PHP4 environment
618 due to DOM XML extension.
620 1.4.1, released 2007-01-21
621 ! docs/enduser-youtube.html updated according to new functionality
622 - YouTube IDs can have underscores and dashes
624 1.4.0, released 2007-01-21
625 ! Implemented list-style-image, URIs now allowed in list-style
626 ! Implemented background-image, background-repeat, background-attachment
627 and background-position CSS properties. Shorthand property background
628 supports all of these properties.
629 ! Configuration documentation looks nicer
630 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
631 characters while %Core.Encoding is set to a non-UTF-8 encoding.
632 ! Support for configuration directive aliases added
633 ! Config object can now be instantiated from ini files
634 ! YouTube preservation code added to the core, with two lines of code
635 you can add it as a filter to your code. See smoketests/preserveYouTube.php
637 ! Moved SLOW to docs/enduser-slow.html and added code examples
638 - Replaced version check with functionality check for DOM (thanks Stephen
640 . Added smoketest 'all.php', which loads all other smoketests via frames
641 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
642 . Added convenient single test selector form on test runner
644 1.3.2, released 2006-12-25
645 ! HTMLPurifier object now accepts configuration arrays, no need to manually
646 instantiate a configuration object
647 ! Context object now accessible to outside
648 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
649 also corresponding smoketest preserveYouTube.php.
650 ! Added purifyArray(), which takes a list of HTML and purifies it all
651 ! Added static member variable $version to HTML Purifier with PHP-compatible
652 version number string.
653 - Fixed fatal error thrown by upper-cased language attributes
654 - printDefinition.php: added labels, added better clarification
655 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
656 a HTMLPurifier_Config object.
658 1.3.1, released 2006-12-06
659 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
660 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
661 (thanks to .mario for reporting this)
662 . Standardized all attribute handling variables to attr, made it plural
664 1.3.0, released 2006-11-26
665 # Invalid images are now removed, rather than replaced with a dud
666 <img src="" alt="Invalid image" />. Previous behavior can be restored
667 with new directive %Core.RemoveInvalidImg set to false.
668 ! (X)HTML Strict now supported
669 + Transparently handles inline elements in block context (blockquote)
670 ! Added GET method to demo for easier validation, added 50kb max input size
671 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
672 ! New directive %HTML.Parent, allows you to only allow inline content
673 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
674 users narrow the set of allowed tags
675 ! <li value="4"> and <ul start="2"> now allowed in loose mode
676 ! New directives %URI.DisableExternalResources and %URI.DisableResources
677 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
678 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
679 service to avoid PageRank leaks or warn users that they are exiting your site.
680 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
681 the configuration settings and see how the internal rules are affected.
682 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
683 xssAttacks.php smoketest updated accordingly.
684 - Added missing type to ChildDef_Chameleon
685 - Remove Tidy option from demo if there is not Tidy available
686 . ChildDef_Required guards against empty tags
687 . Lookup table HTMLDefinition->info_flow_elements added
688 . Added peace-of-mind variable initialization to Strategy_FixNesting
689 . Added HTMLPurifier->info_parent_def, parent child processing made special
690 . Added internal documents briefly summarizing future progression of HTML
691 . HTMLPurifier_Config->getBatch($namespace) added
692 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
693 . Refactored ChildDef classes into their own files
695 1.2.0, released 2006-11-19
696 # ID attributes now disabled by default. New directives:
697 + %HTML.EnableAttrID - restores old behavior by allowing IDs
698 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
699 so that they don't collide with your IDs
700 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
701 instances of user content on the page
702 + Profuse documentation on how to use these available in docs/enduser-id.txt
703 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
704 ! Added percent encoding normalization
705 ! XSS attacks smoketest given facelift
706 ! Configuration documentation now has table of contents
707 ! Added %URI.DisableExternal, which prevents links to external websites. You
708 can also use %URI.Host to permit absolute linking to subdomains
709 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
710 - Type variable in HTMLDefinition was not being set properly, fixed
711 - Documentation updated
712 + TODO added request Phalanger
713 + TODO added request Native compression
714 + TODO added request Remove redundant tags
715 + TODO added possible plaintext formatter for HTML Purifier documentation
716 + Updated ConfigDoc TODO
717 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
719 + Revamped documentation into HTML, along with misc updates
720 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
721 to retrieve a non-existent variable
722 . Switched to purify()-wide Context object registry
723 . Refactored unit tests to minimize duplication
724 . XSS attack sheet updated
725 . configdoc.xml now has xml:space attached to default value nodes
726 . Allow configuration directives to permit null values
727 . Cleaned up test-cases to remove unnecessary swallowErrors()
729 1.1.2, released 2006-09-30
730 ! Add HTMLPurifier.auto.php stub file that configures include_path
731 - Documentation updated
732 + INSTALL document rewritten
733 + TODO added semi-lossy conversion
734 + API Doxygen docs' file exclusions updated
735 + Added notes on HTML versus XML attribute whitespace handling
736 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
737 + Noted that config object's definitions are cached versions
738 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
739 - ftp:// URIs now have their typecodes checked
740 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
741 . Line endings standardized throughout project (svn:eol-style standardized)
742 . Refactored parseData() to general Lexer class
743 . Tester named "HTML Purifier" not "HTMLPurifier"
745 1.1.1, released 2006-09-24
746 ! Configuration option to optionally Tidy up output for indentation to make up
747 for dropped whitespace by DOMLex (pretty-printing for the entire application
748 should be done by a page-wide Tidy)
749 - Various documentation updates
750 - Fixed parse error in configuration documentation script
751 - Fixed fatal error in benchmark scripts, slightly augmented
752 - As far as possible, whitespace is preserved in-between table children
753 - Sample test-settings.php file included
755 1.1.0, released 2006-09-16
756 ! Directive documentation generation using XSLT
757 ! XHTML can now be turned off, output becomes <br>
758 - Made URI validator more forgiving: will ignore leading and trailing
759 quotes, apostrophes and less than or greater than signs.
760 - Enforce alphanumeric namespace and directive names for configuration.
761 - Table child definition made more flexible, will fix up poorly ordered elements
762 . Renamed ConfigDef to ConfigSchema
764 1.0.1, released 2006-09-04
765 - Fixed slight bug in DOMLex attribute parsing
766 - Fixed rejection of case-insensitive configuration values when there is a
767 set of allowed values. This manifested in %Core.Encoding.
768 - Fixed rejection of inline style declarations that had lots of extra
769 space in them. This manifested in TinyMCE.
771 1.0.0, released 2006-09-01
772 ! Shorthand CSS properties implemented: font, border, background, list-style
773 ! Basic color keywords translated into hexadecimal values
774 ! Table CSS properties implemented
775 ! Support for charsets other than UTF-8 (defined by iconv)
776 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
777 - Fixed broken numeric entity conversion
778 - API documentation completed
779 . (HTML|CSS)Definition de-singleton-ized
781 1.0.0beta, released 2006-08-16
782 ! First public release, most functionality implemented. Notable omissions are:
783 + Shorthand CSS properties
784 + Table CSS properties
785 + Deprecated attribute transformations