1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 3.3.0, unknown release date
13 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
14 ! Implement generic property list classess
15 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
16 does not do the "right thing" with characters not supported in the output
18 - Spellcheck UTF-8: The Secret To Character Encoding
19 - Fix improper removal of the contents of elements with only whitespace. Thanks
20 Eric Wald for reporting.
21 - Fix broken test suite in versions of PHP without spl_autoload_register()
22 . Add verbose mode to command line test runner, use (--verbose)
23 . Turn on unit tests for UnitConverter
24 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
25 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
28 3.2.0, released 2008-10-31
29 # Using %Core.CollectErrors forces line number/column tracking on, whereas
30 previously you could theoretically turn it off.
31 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
32 use handleEnd() instead.
33 ! %Output.AttrSort for when you need your attributes in alphabetical order to
34 deal with a bug in FCKEditor. Requested by frank farmer.
35 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
36 ! Proper support for name attribute. It is now allowed and equivalent to the id
37 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
38 is heavy (for all doctypes).
39 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
40 use on hand-written HTML.
41 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
42 the strategy to be used, standalone, on untrusted input.
43 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
44 processing of left angled brackets in smileys and other whatnot.
45 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
46 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
47 the --only-phpt parameter, although for backwards-compatibility the flag
49 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
50 Users who are not performing inbound filtering, this may seem a little
51 useless, but as a bonus, the test suite and handling of edge cases is also
53 ! Experimental implementation of forms for %HTML.Trusted
54 ! Track column numbers when maintain line numbers is on
55 ! Proprietary 'background' attribute on table-related elements converted into
56 corresponding CSS. Thanks Fusemail for sponsoring this feature!
57 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
59 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
60 time of operation varies slightly from notifyEnd() as *all* end tokens are
61 processed by the injector before they are subject to the well-formedness rules.
62 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
63 basename of image when not present.
64 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
65 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
66 the other involving an undefined $is_folder error.
67 - Throw error when %Core.Encoding is set to a spurious value. Previously,
68 this errored silently and returned false.
69 - Redirected stderr to stdout for flush error output.
70 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
72 - Do not re-munge URL if the output URL has the same host as the input URL.
74 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
75 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
76 - Fix bug with inline elements in blockquotes conflicting with strict doctype
77 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
78 - Fix bug where dots and double-dots in absolute URLs without hostname were
79 not collapsed by URIFilter_MakeAbsolute.
80 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
81 by reordering their addition.
82 - Will now throw exception on many error conditions during lexer creation; also
83 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
85 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
86 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
87 Reported by David Morton.
88 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
89 for more interesting filter-backtracking
90 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
91 index to reprocess tokens.
92 . StringHashParser now allows for multiline sections with "empty" content;
93 previously the section would remain undefined.
94 . Added --quick option to multitest.php, which tests only the most recent
95 release for each series.
96 . Added --distro option to multitest.php, which accepts either 'normal' or
97 'standalone'. This supercedes --exclude-normal and --exclude-standalone
99 3.1.1, released 2008-06-19
100 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
101 In order to enable this again, please set %URI.MungeResources to true.
102 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
103 and height/width HTML with %HTML.MaxImgLength.
104 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
105 for sponsoring this feature. Check out the corresponding documentation
106 for details. (Att Nightly testers: The API for this feature changed before
107 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
108 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
109 ! Implemented post URI filtering. Set member variable $post to true to set
111 ! Allow modules to define injectors via $info_injector. Injectors are
112 automatically disabled if injector's needed elements are not found.
113 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
114 Thanks Chris for sponsoring. If you've been using ad hoc code from the
115 forums, PLEASE use this instead.
116 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
117 embedded, tag name, attribute name, CSS property name). See %URI.Munge
118 for more details. Requested by Jochem Blok.
119 - Disable percent height/width attributes for img.
120 - AttrValidator operations are now atomic; updates to attributes are not
121 manifest in token until end of operations. This prevents naughty internal
122 code from directly modifying CurrentToken when they're not supposed to.
123 This semantics change was requested by frank farmer.
124 - Percent encoding checks enabled for URI query and fragment
125 - Fix stray backslashes in font-family; CSS Unicode character escapes are
126 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
128 - Improve parseCDATA algorithm to take into account newline normalization
129 - Account for browser confusion between Yen character and backslash in
130 Shift_JIS encoding. This fix generalizes to any other encoding which is not
131 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
132 - Fix missing configuration parameter in Generator calls. Thanks vs for the
134 - Improved adherence to Unicode by checking for non-character codepoints.
135 Thanks Geoffrey Sneddon for reporting. This may result in degraded
136 performance for extremely large inputs.
137 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
139 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
140 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
142 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
143 to __construct($min, $max). __construct(true) is equivalent to
145 . Added HTMLPurifier_AttrDef_Switch class
146 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
147 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
148 get this called with the configuration object. All modules now
149 use this rather than __construct(), although legacy code using constructors
150 will still work--the new format, however, lets modules access the
151 configuration object for HTML namespace dependant tweaks.
152 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
153 . ConfigSchema data-structure heavily optimized; on average it uses a third
154 the memory it did previously. The interface has changed accordingly,
155 consult changes to HTMLPurifier_Config for details.
156 . Variable parsing types now are magic integers instead of strings
157 . Added benchmark for ConfigSchema
158 . HTMLPurifier_Generator requires $config and $context parameters. If you
159 don't know what they should be, use HTMLPurifier_Config::createDefault()
160 and new HTMLPurifier_Context().
161 . Printers now properly distinguish between output configuration, and
162 target configuration. This is not applicable to scripts using
163 the Printers for HTML Purifier related tasks.
164 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
165 fatal errors will ensue.
166 . URIFilter->prepare can return false in order to abort loading of the filter
167 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
168 an external resource.
169 . %URI.Munge functionality factored out into a post-filter class.
170 . Added CurrentCSSProperty context variable during CSS validation
172 3.1.0, released 2008-05-18
173 # Unnecessary references to objects (vestiges of PHP4) removed from method
174 signatures. The following methods do not need references when assigning from
175 them and will result in E_STRICT errors if you try:
176 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
177 + HTMLPurifier_ConfigSchema::instance()
178 + HTMLPurifier_DefinitionCacheFactory::instance()
179 + HTMLPurifier_DefinitionCacheFactory->create()
180 + HTMLPurifier_DoctypeRegistry->register()
181 + HTMLPurifier_DoctypeRegistry->get()
182 + HTMLPurifier_HTMLModule->addElement()
183 + HTMLPurifier_HTMLModule->addBlankElement()
184 + HTMLPurifier_LanguageFactory::instance()
185 # Printer_ConfigForm's get*() functions were static-ified
186 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
187 form of tag@attr, NOT tag.attr (which will throw an error and won't do
188 anything). This is for forwards compatibility with XML; you'd do best
189 to migrate an %HTML.AllowedAttributes directives to this syntax too.
190 ! Allow index to be false for config from form creation
191 ! Added HTMLPurifier::VERSION constant
192 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
193 and allows for version numbers like "3.1.0-dev".
194 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
195 ! HTML Purifier's URI handling is a lot more robust, with much stricter
196 validation checks and better percent encoding handling. Thanks Gareth Heyes
197 for indicating security vulnerabilities from lax percent encoding.
198 ! Bootstrap autoloader deals more robustly with classes that don't exist,
199 preventing class_exists($class, true) from barfing.
200 - InterchangeBuilder now alphabetizes its lists
201 - Validation error in configdoc output fixed
202 - Iconv and other encoding errors muted even with custom error handlers that
203 do not honor error_reporting
204 - Add protection against imagecrash attack with CSS height/width
205 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
206 - Fixed and revamped broken ConfigForm smoketest
207 - Bug with bool/null fields in Printer_ConfigForm fixed
208 - Bug with global forbidden attributes fixed
209 - Improved error messages for allowed and forbidden HTML elements and attributes
210 - Missing (or null) in configdoc documentation restored
211 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
212 of DOM), HTML Purifier punts to DirectLex
213 - Fatal error with unserialization of ScriptRequired
214 - Created directories are now chmod'ed properly
215 - Fixed bug with fallback languages in LanguageFactory
216 - Standalone testing setup properly with autoload
217 . Out-of-date documentation revised
218 . UTF-8 encoding check optimization as suggested by Diego
219 . HTMLPurifier_Error removed in favor of exceptions
220 . More copy() function removed; should use clone instead
221 . More extensive unit tests for HTMLDefinition
222 . assertPurification moved to central harness
223 . HTMLPurifier_Generator accepts $config and $context parameters during
224 instantiation, not runtime
225 . Double-quotes outside of attribute values are now unescaped
227 3.1.0rc1, released 2008-04-22
228 # Autoload support added. Internal require_once's removed in favor of an
229 explicit require list or autoloading. To use HTML Purifier,
230 you must now either use HTMLPurifier.auto.php
231 or HTMLPurifier.includes.php; setting the include path and including
232 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
233 as well to register our autoload handler (or modify your autoload function
234 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
235 HTMLPurifier.safe-includes.php for a less performance friendly but more
236 user-friendly library load.
237 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
238 information is stored in the ConfigSchema directory, and the
239 maintenance/generate-schema-cache.php generates the schema.ser file, which
240 is now instantiated. Support for userland schema changes coming soon!
241 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
242 alias; to get rid of these errors just modify your configuration to use
243 the new directive name.
244 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
245 enabled using %Filter.$filter_name or by setting your own filters using
247 # Directive-level safety properties superceded in favor of module-level
248 safety. Internal method HTMLModule->addElement() has changed, although
249 the externally visible HTMLDefinition->addElement has *not* changed.
250 ! Extra utility classes for testing and non-library operations can
251 be found in extras/. Specifically, these are FSTools and ConfigDoc.
252 You may find a use for these in your own project, but right now they
253 are highly experimental and volatile.
254 ! Integration with PHPT allows for automated smoketests
255 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
256 by Chris. You can enable them with %HTML.Proprietary if your client
258 ! Support for !important CSS cascade modifier. By default, this will be stripped
259 from CSS, but you can enable it using %CSS.AllowImportant
260 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
262 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
263 Developer error (not enduser error) can cause these to be triggered.
264 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
265 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
266 mucking around with HTMLPurifier_CSSDefinition
267 ! ConfigDoc output has been enhanced with version and deprecation info.
268 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
269 - Autoclose now operates iteratively, i.e. <span><span><div> now has
270 both span tags closed.
271 - Various HTMLPurifier_Config convenience functions now accept another parameter
272 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
274 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
275 - Fix bug in ExtractStyleBlocks with comments in style tags
276 - Fix bug in comment parsing for DirectLex
277 - Flush output now displayed when in command line mode for unit tester
278 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
279 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
280 on the same element without emitting errors.
281 - Fixed fatal error in PH5P lexer with invalid tag names
282 . Plugins now get their own changelogs according to project conventions.
283 . Convert tokens to use instanceof, reducing memory footprint and
284 improving comparison speed.
285 . Dry runs now supported in SimpleTest; testing facilities improved
286 . Bootstrap class added for handling autoloading functionality
287 . Implemented recursive glob at FSTools->globr
288 . ConfigSchema now has instance methods for all corresponding define*
290 . A couple of new historical maintenance scripts were added.
291 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
292 . tests/index.php can now be run from any directory.
293 . HTMLPurifier_Token subclasses split into seperate files
294 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
295 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
296 . New --php=php flag added, allows PHP executable to be specified (command
298 . htmlpurifier_add_test() preferred method to translate test files in to
299 classes, because it handles PHPT files too.
300 . Debugger class is deprecated and will be removed soon.
301 . Command line argument parsing for testing scripts revamped, now --opt value
303 . Smoketests now cleanup after magic quotes
304 . Generator now can output comments (however, comments are still stripped
305 from HTML Purifier output)
306 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
307 HTMLPurifier_VarParser->parse()
308 . Integers auto-cast into float type by VarParser.
309 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
310 during cache generation
311 . Reordered script calls in maintenance/flush.php
312 . Command line scripts now honor exit codes
313 . When --flush fails in unit testers, abort tests and print message
314 . Improved documentation in docs/dev-flush.html about the maintenance scripts
315 . copy() methods removed in favor of clone keyword
317 3.0.0, released 2008-01-06
318 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
319 until PHP 4 is completely deprecated, but no new features will be added
321 + Visibility declarations added
322 + Constructor methods renamed to __construct()
323 + PHP4 reference cruft removed (in progress)
324 ! CSS properties are now case-insensitive
325 ! DefinitionCacheFactory now can register new implementations
326 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
327 documents and cleaning their contents up. Requires the CSSTidy library
328 <http://csstidy.sourceforge.net/>. You can access the blocks with the
329 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
330 The output CSS can also be "scoped" for a specific element, use:
331 %Filter.ExtractStyleBlocksScope
332 ! Experimental support for some proprietary CSS attributes allowed:
333 opacity (and all of the browser-specific equivalents) and scrollbar colors.
334 Enable by setting %CSS.Proprietary to true.
335 - Colors missing # but in hex form will be corrected
336 - CSS Number algorithm improved
337 - Unit testing and multi-testing now on steroids: command lines,
338 XML output, and other goodies now added.
339 . Unit tests for Injector improved
341 + HTMLPurifier_AttrDef_CSS_AlphaValue
342 + HTMLPurifier_AttrDef_CSS_Filter
343 . Multitest now has a file docblock
345 2.1.3, released 2007-11-05
346 ! tests/multitest.php allows you to test multiple versions by running
347 tests/index.php through multiple interpreters using `phpv` shell
348 script (you must provide this script!)
349 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
351 - Injector algorithm further refined: off-by-one error regarding skip
352 counts for dormant injectors fixed
353 - Corrective blockquote definition now enabled for HTML 4.01 Strict
354 - Fatal error when <img> tag (or any other element with required attributes)
355 has 'id' attribute fixed, thanks NykO18 for reporting
356 - Fix warning emitted when a non-supported URI scheme is passed to the
357 MakeAbsolute URIFilter, thanks NykO18 (again)
358 - Further refine AutoParagraph injector. Behavior inside of elements
359 allowing paragraph tags clarified: only inline content delimeted by
360 double newlines (not block elements) are paragraphed.
361 - Buggy treatment of end tags of elements that have required attributes
362 fixed (does not manifest on default tag-set)
363 - Spurious internal content reorganization error suppressed
364 - HTMLDefinition->addElement now returns a reference to the created
365 element object, as implied by the documentation
366 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
367 - Fix a theoretical class of infinite loops from DirectLex reported
369 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
371 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
372 HTMLDefinition errors, this may indicate problems with error-collecting
374 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
375 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
376 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
377 to better communicate its purpose
378 . Error unit tests can now specify the expectation of no errors. Future
379 iterations of the harness will be extremely strict about what errors
381 . Extend Injector hooks to allow for more powerful injector routines
382 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
384 . Doxygen configuration file updated, with minor improvements
385 . Test runner now checks for similarly named files in conf/ directory too.
386 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
388 . Maintenance script for generating PH5P patch added, original PH5P source
389 file also added under version control
390 . Full unit test runner script title made more descriptive with PHP version
391 . Updated INSTALL file to state that 4.3.7 is the earliest version we
394 2.1.2, released 2007-09-03
395 ! Implemented Object module for trusted users
396 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
398 require_once 'HTMLPurifier/Lexer/PH5P.php';
399 $config->set('Core', 'LexerImpl', 'PH5P');
400 Note that this Lexer introduces some classes not in the HTMLPurifier
401 namespace. Also, this is PHP5 only.
402 ! CSS property border-spacing implemented
403 - Fix non-visible parsing error in DirectLex with empty tags that have
404 slashes inside attribute values.
405 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
406 accepted as valid CSS. Usually non-visible, because this styling is the
407 default for tables in most browsers. Thanks Brett Zamir for pointing
409 - Fix validation errors in configuration form
410 - Hammer out a bunch of edge-case bugs in the standalone distribution
411 - Inclusion reflection removed from URISchemeRegistry; you must manually
412 include any new schema files you wish to use
413 - Numerous typo fixes in documentation thanks to Brett Zamir
414 . Unit test refactoring for one logical test per test function
415 . Config and context parameters in ComplexHarness deprecated: instead, edit
416 the $config and $context member variables
417 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
418 really make a difference, but is good for completeness sake
419 . merge-library.php script refactored for greater code reusability and
422 2.1.1, released 2007-08-04
423 - Fix show-stopper bug in %URI.MakeAbsolute functionality
424 - Fix PHP4 syntax error in standalone version
425 . Add prefix directory to include path for standalone, this prevents
426 other installations from clobbering the standalone's URI schemes
427 . Single test methods can be invoked by prefixing with __only
429 2.1.0, released 2007-08-02
430 # flush-htmldefinition-cache.php superseded in favor of a generic
431 flush-definition-cache.php script, you can clear a specific cache
432 by passing its name as a parameter to the script
433 ! Phorum mod implemented for HTML Purifier
434 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
435 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
436 for PHP4 (DirectLex).
437 ! Standalone file now available, which greatly reduces the amount of
438 includes (although there are still a few files that reside in the
440 ! Relative URIs can now be transformed into their absolute equivalents
441 using %URI.Base and %URI.MakeAbsolute
442 ! Ruby implemented for XHTML 1.1
443 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
445 ! UTF-8 font names now supported in CSS
446 - AutoFormatters emit friendly error messages if tags or attributes they
448 - ConfigForm's compactification of directive names is now configurable
449 - AutoParagraph autoformatter algorithm refined after field-testing
450 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
452 - Contents of <style> tags removed by default when tags are removed
453 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
454 for output cache invalidation
455 . ConfigForm printer now can retrieve CSS and JS files as strings, in
456 case HTML Purifier's directory is not publically accessible
457 . Introduce new text/itext configuration directive values: these represent
458 longer strings that would be more appropriately edited with a textarea
459 . Allow newlines to act as separators for lists, hashes, lookups and
461 . ConfigForm generates textareas instead of text inputs for lists, hashes,
462 lookups, text and itext fields
463 . Hidden element content removal genericized: %Core.HiddenElements can
464 be used to customize this behavior, by default <script> and <style> are
466 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
467 . Custom ChildDef added to default include list
468 . URIScheme reflection improved: will not attempt to include file if class
469 already exists. May clobber autoload, so I need to keep an eye on it
470 . ConfigSchema heavily optimized, will only collect information and validate
471 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
472 . AttrDef_URI unit tests and implementation refactored
473 . benchmarks/ directory now protected from public view with .htaccess file;
474 run the tests via command line
475 . URI scheme is munged off if there is no authority and the scheme is the
477 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
478 . Interface for URIScheme changed
479 . Generic URI object to hold components of URI added, most systems involved
480 in URI validation have been migrated to use it
481 . Custom filtering for URIs factored out to URIDefinition interface for
482 maximum extensibility
484 2.0.1, released 2007-06-27
485 ! Tag auto-closing now based on a ChildDef heuristic rather than a
486 manually set auto_close array; some behavior may change
487 ! Experimental AutoFormat functionality added: auto-paragraph and
488 linkify your HTML input by setting %AutoFormat.AutoParagraph and
489 %AutoFormat.Linkify to true
490 ! Newlines normalized internally, and then converted back to the
491 value of PHP_EOL. If this is not desired, set your newline format
492 using %Output.Newline.
493 ! Beta error collection, messages are implemented for the most generic
494 cases involving Lexing or Strategies
495 - Clean up special case code for <script> tags
496 - Reorder includes for DefinitionCache decorators, fixes a possible
498 - Fixed bug where manually modified definitions were not saved via cache
499 (mostly harmless, except for the fact that it would be a little slower)
500 - Configuration objects with different serials do not clobber each
501 others when revision numbers are unequal
502 - Improve Serializer DefinitionCache directory permissions checks
503 - DefinitionCache no longer throws errors when it encounters old
504 serial files that do not conform to the current style
505 - Stray xmlns attributes removed from configuration documentation
506 - configForm.php smoketest no longer has XSS vulnerability due to
507 unescaped print_r output
508 - Printer adheres to configuration's directives on output format
509 - Fix improperly named form field in ConfigForm printer
510 . Rewire some test-cases to swallow errors rather than expect them
511 . HTMLDefinition printer updated with some of the new attributes
512 . DefinitionCache keys reordered to reflect precedence: version number,
513 hash, then revision number
514 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
515 . Interlinking in configuration documentation added using
516 Injector_PurifierLinkify
517 . Directives now keep track of aliases to themselves
518 . Error collector now requires a severity to be passed, use PHP's internal
519 error constants for this
520 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
521 much easier selective embedding of configuration values
522 . Doctype objects now accept public and system DTD identifiers
523 . %HTML.Doctype is now constrained by specific values, to specify a custom
524 doctype use new %HTML.CustomDoctype
525 . ConfigForm truncates long directives to keep the form small, and does
526 not re-output namespaces
528 2.0.0, released 2007-06-20
529 # Completely refactored HTMLModuleManager, decentralizing safety
531 # Transform modules changed to Tidy modules, which offer more flexibility
532 and better modularization
533 # Configuration object now finalizes itself when a read operation is
534 performed on it, ensuring that its internal state stays consistent.
535 To revert this behavior, you can set the $autoFinalize member variable
536 off, but it's not recommended.
537 # New compact syntax for AttrDef objects that can be used to instantiate
538 new objects via make()
539 # Definitions (esp. HTMLDefinition) are now cached for a significant
540 performance boost. You can disable caching by setting %Core.DefinitionCache
541 to null. You CANNOT edit raw definitions without setting the corresponding
542 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
543 # Contents between <script> tags are now completely removed if <script>
545 # Prototype-declarations for Lexer removed in favor of configuration
546 determination of Lexer implementations.
547 ! HTML Purifier now works in PHP 4.3.2.
548 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
550 ! Configuration directives that accept hashes now allow new string
551 format: key1:value1,key2:value2
552 ! ConfigDoc now factored into OOP design
553 ! All deprecated elements now natively supported
554 ! Implement TinyMCE styled whitelist specification format in
556 ! Config object gives more friendly error messages when things go wrong
557 ! Advanced API implemented: easy functions for creating elements (addElement)
558 and attributes (addAttribute) on HTMLDefinition
559 ! Add native support for required attributes
560 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
561 - DOMLex will not emit errors when a custom error handler that does not
562 honor error_reporting is used
563 - StrictBlockquote child definition refrains from wrapping whitespace
565 - Bug resulting from tag transforms to non-allowed elements fixed
566 - ChildDef_Custom's regex generation has been improved, removing several
568 . Unit test for ElementDef created, ElementDef behavior modified to
570 . Added convenience functions for HTMLModule constructors
571 . AttrTypes now has accessor functions that should be used instead
572 of directly manipulating info
573 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
574 . Add extra protection in AttrDef_URI against phantom Schemes
575 . Doctype object added to HTMLDefinition which describes certain aspects
576 of the operational document type
577 . Lexer is now pre-emptively included, with a conditional include for the
579 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
580 . DirectLex can now track line-numbers
581 . Preliminary error collector is in place, although no code actually reports
583 . Factor out most of ValidateAttributes to new AttrValidator class
585 1.6.1, released 2007-05-05
586 ! Support for more deprecated attributes via transformations:
587 + hspace and vspace in img
588 + size and noshade in hr
591 + align in caption, table, img and hr
592 + type in ul, ol and li
593 ! DirectLex now preserves text in which a < bracket is followed by
594 a non-alphanumeric character. This means that certain emoticons
596 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
597 images will hang around with an empty src
598 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
600 ! CSS property white-space now allows nowrap (supported in all modern
601 browsers) but not others (which have spotty browser implementations)
602 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
603 lang is now moved over to xml:lang.
604 ! Attribute transformation smoketest available at smoketests/attrTransform.php
605 ! Transformation of font's size attribute now handles super-large numbers
606 - Possibly fatal bug with __autoload() fixed in module manager
607 - Invert HTMLModuleManager->addModule() processing order to check
608 prefixes first and then the literal module
609 - Empty strings get converted to empty arrays instead of arrays with
610 an empty string in them.
611 - Merging in attribute lists now works.
612 . Demo script removed: it has been added to the website's repository
613 . Basic.php script modified to work out of the box
614 . Refactor AttrTransform classes to reduce duplication
615 . AttrTransform_TextAlign axed in favor of a more general
616 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
617 see how the new equivalent is implemented
618 . Unit tests now use exclusively assertIdentical
620 1.6.0, released 2007-04-01
621 ! Support for most common deprecated attributes via transformations:
622 + bgcolor in td, th, tr and table
625 + width in td, th and hr
627 ! Support for CSS attribute 'height' added
628 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
629 and %Attr.AllowedRev to activate
630 - You can define ID blacklists using regular expressions via
631 %Attr.IDBlacklistRegexp
632 - Error messages are emitted when you attempt to "allow" elements or
633 attributes that HTML Purifier does not support
634 - Fix segfault in unit test. The problem is not very reproduceable and
635 I don't know what causes it, but a six line patch fixed it.
637 1.5.0, released 2007-03-23
638 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
639 doesn't actually do anything yet, but keep your eyes peeled.
640 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
641 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
642 I am loathe to release beta quality APIs, but this is exactly that;
643 don't use the internal interfaces if you're not willing to do migration
645 - Allow 'x' subtag in language codes
646 - Fixed buggy chameleon-support for ins and del
647 . Added support for IDREF attributes (i.e. for)
648 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
649 . Removed context variable ParentType, replaced with IsInline, which
650 is false when you're not inline and an integer of the parent that
651 caused you to become inline when you are (so possibly zero)
652 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
653 and HTMLDefinition->content_sets
654 . StrictBlockquote now reports what elements its supposed to allow,
655 rather than what it does allow
656 . Removed HTMLDefinition->info_flow_elements in favor of
657 HTMLDefinition->content_sets['Flow']
658 . Removed redundant "exclusionary" definitions from DTD roster
659 . StrictBlockquote now requires a construction parameter as if it
660 were an Required ChildDef, this is the "real" set of allowed elements
661 . AttrDef partitioned into HTML, CSS and URI segments
662 . Modify Youtube filter regexp to be multiline
663 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
664 some edge cases where a DOMDocument class exists in a PHP4 environment
665 due to DOM XML extension.
667 1.4.1, released 2007-01-21
668 ! docs/enduser-youtube.html updated according to new functionality
669 - YouTube IDs can have underscores and dashes
671 1.4.0, released 2007-01-21
672 ! Implemented list-style-image, URIs now allowed in list-style
673 ! Implemented background-image, background-repeat, background-attachment
674 and background-position CSS properties. Shorthand property background
675 supports all of these properties.
676 ! Configuration documentation looks nicer
677 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
678 characters while %Core.Encoding is set to a non-UTF-8 encoding.
679 ! Support for configuration directive aliases added
680 ! Config object can now be instantiated from ini files
681 ! YouTube preservation code added to the core, with two lines of code
682 you can add it as a filter to your code. See smoketests/preserveYouTube.php
684 ! Moved SLOW to docs/enduser-slow.html and added code examples
685 - Replaced version check with functionality check for DOM (thanks Stephen
687 . Added smoketest 'all.php', which loads all other smoketests via frames
688 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
689 . Added convenient single test selector form on test runner
691 1.3.2, released 2006-12-25
692 ! HTMLPurifier object now accepts configuration arrays, no need to manually
693 instantiate a configuration object
694 ! Context object now accessible to outside
695 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
696 also corresponding smoketest preserveYouTube.php.
697 ! Added purifyArray(), which takes a list of HTML and purifies it all
698 ! Added static member variable $version to HTML Purifier with PHP-compatible
699 version number string.
700 - Fixed fatal error thrown by upper-cased language attributes
701 - printDefinition.php: added labels, added better clarification
702 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
703 a HTMLPurifier_Config object.
705 1.3.1, released 2006-12-06
706 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
707 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
708 (thanks to .mario for reporting this)
709 . Standardized all attribute handling variables to attr, made it plural
711 1.3.0, released 2006-11-26
712 # Invalid images are now removed, rather than replaced with a dud
713 <img src="" alt="Invalid image" />. Previous behavior can be restored
714 with new directive %Core.RemoveInvalidImg set to false.
715 ! (X)HTML Strict now supported
716 + Transparently handles inline elements in block context (blockquote)
717 ! Added GET method to demo for easier validation, added 50kb max input size
718 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
719 ! New directive %HTML.Parent, allows you to only allow inline content
720 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
721 users narrow the set of allowed tags
722 ! <li value="4"> and <ul start="2"> now allowed in loose mode
723 ! New directives %URI.DisableExternalResources and %URI.DisableResources
724 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
725 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
726 service to avoid PageRank leaks or warn users that they are exiting your site.
727 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
728 the configuration settings and see how the internal rules are affected.
729 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
730 xssAttacks.php smoketest updated accordingly.
731 - Added missing type to ChildDef_Chameleon
732 - Remove Tidy option from demo if there is not Tidy available
733 . ChildDef_Required guards against empty tags
734 . Lookup table HTMLDefinition->info_flow_elements added
735 . Added peace-of-mind variable initialization to Strategy_FixNesting
736 . Added HTMLPurifier->info_parent_def, parent child processing made special
737 . Added internal documents briefly summarizing future progression of HTML
738 . HTMLPurifier_Config->getBatch($namespace) added
739 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
740 . Refactored ChildDef classes into their own files
742 1.2.0, released 2006-11-19
743 # ID attributes now disabled by default. New directives:
744 + %HTML.EnableAttrID - restores old behavior by allowing IDs
745 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
746 so that they don't collide with your IDs
747 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
748 instances of user content on the page
749 + Profuse documentation on how to use these available in docs/enduser-id.txt
750 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
751 ! Added percent encoding normalization
752 ! XSS attacks smoketest given facelift
753 ! Configuration documentation now has table of contents
754 ! Added %URI.DisableExternal, which prevents links to external websites. You
755 can also use %URI.Host to permit absolute linking to subdomains
756 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
757 - Type variable in HTMLDefinition was not being set properly, fixed
758 - Documentation updated
759 + TODO added request Phalanger
760 + TODO added request Native compression
761 + TODO added request Remove redundant tags
762 + TODO added possible plaintext formatter for HTML Purifier documentation
763 + Updated ConfigDoc TODO
764 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
766 + Revamped documentation into HTML, along with misc updates
767 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
768 to retrieve a non-existent variable
769 . Switched to purify()-wide Context object registry
770 . Refactored unit tests to minimize duplication
771 . XSS attack sheet updated
772 . configdoc.xml now has xml:space attached to default value nodes
773 . Allow configuration directives to permit null values
774 . Cleaned up test-cases to remove unnecessary swallowErrors()
776 1.1.2, released 2006-09-30
777 ! Add HTMLPurifier.auto.php stub file that configures include_path
778 - Documentation updated
779 + INSTALL document rewritten
780 + TODO added semi-lossy conversion
781 + API Doxygen docs' file exclusions updated
782 + Added notes on HTML versus XML attribute whitespace handling
783 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
784 + Noted that config object's definitions are cached versions
785 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
786 - ftp:// URIs now have their typecodes checked
787 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
788 . Line endings standardized throughout project (svn:eol-style standardized)
789 . Refactored parseData() to general Lexer class
790 . Tester named "HTML Purifier" not "HTMLPurifier"
792 1.1.1, released 2006-09-24
793 ! Configuration option to optionally Tidy up output for indentation to make up
794 for dropped whitespace by DOMLex (pretty-printing for the entire application
795 should be done by a page-wide Tidy)
796 - Various documentation updates
797 - Fixed parse error in configuration documentation script
798 - Fixed fatal error in benchmark scripts, slightly augmented
799 - As far as possible, whitespace is preserved in-between table children
800 - Sample test-settings.php file included
802 1.1.0, released 2006-09-16
803 ! Directive documentation generation using XSLT
804 ! XHTML can now be turned off, output becomes <br>
805 - Made URI validator more forgiving: will ignore leading and trailing
806 quotes, apostrophes and less than or greater than signs.
807 - Enforce alphanumeric namespace and directive names for configuration.
808 - Table child definition made more flexible, will fix up poorly ordered elements
809 . Renamed ConfigDef to ConfigSchema
811 1.0.1, released 2006-09-04
812 - Fixed slight bug in DOMLex attribute parsing
813 - Fixed rejection of case-insensitive configuration values when there is a
814 set of allowed values. This manifested in %Core.Encoding.
815 - Fixed rejection of inline style declarations that had lots of extra
816 space in them. This manifested in TinyMCE.
818 1.0.0, released 2006-09-01
819 ! Shorthand CSS properties implemented: font, border, background, list-style
820 ! Basic color keywords translated into hexadecimal values
821 ! Table CSS properties implemented
822 ! Support for charsets other than UTF-8 (defined by iconv)
823 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
824 - Fixed broken numeric entity conversion
825 - API documentation completed
826 . (HTML|CSS)Definition de-singleton-ized
828 1.0.0beta, released 2006-08-16
829 ! First public release, most functionality implemented. Notable omissions are:
830 + Shorthand CSS properties
831 + Table CSS properties
832 + Deprecated attribute transformations