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1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
5 # Breaks back-compat
6 ! Feature
7 - Bugfix
8 + Sub-comment
9 . Internal change
10 ==========================
12 4.8.0, unknown release date
13 ! Full PHP 7 compatibility, the test suite is ALL GO.
14 ! %CSS.AllowDuplicates permits duplicate CSS properties.
15 - alt truncation could result in malformed UTF-8 sequence. Don't
16 truncate. Thanks Brandon Farber for reporting.
17 - Linkify regex is smarter, based off of Gruber's regex.
18 - IDNA supported natively on PHP 5.3 and later.
19 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
20 allowed.
21 - Minor bounds error fix to squash a PHP 7 notice.
22 - Support non-/tmp temporary directories for data:// validation
23 - Give a better error message when a user attempts to allow
24 ul/ol without allowing li.
25 - On some versions of PHP, the Serializer DefinitionCache could
26 infinite loop when the directory exists but is not listable. (#49)
27 - Don't match for <body> inside comments with
28 %Core.ConvertDocumentToFragment. (#67)
30 4.7.0, released 2015-08-04
31 # opacity is now considered a "tricky" CSS property rather than a
32 proprietary one.
33 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
34 an element should be considered "empty" (maybe preserve if it
35 has attributes), and modify iframe support so that the iframe
36 is removed if it is missing a src attribute. Thanks meeva for
37 reporting.
38 - Don't truncate upon encountering </div> when using DOMLex. Thanks
39 Myrto Christina for finally convincing me to fix this.
40 - Update YouTube filter for new code.
41 - Fix parsing of rgb() values with spaces in them for 'border'
42 attribute.
43 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
44 valME for reporting.
46 4.6.0, released 2013-11-30
47 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
48 Please update any verification scripts you may have.
49 # URI parsing algorithm was made more strict, so only prefixes which
50 looks like schemes will actually be schemes. Thanks
51 Michael Gusev <mgusev@sugarcrm.com> for fixing.
52 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
53 anything.
54 ! New directive %Core.AllowHostnameUnderscore which allows underscores
55 in hostnames.
56 - Eliminate quadratic behavior in DOMLex by using a proper queue.
57 Thanks Ole Laursen for noticing this.
58 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
59 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
60 Networks for sponsoring this work.
61 - Made Linkify URL parser a bit less permissive, so that non-breaking
62 spaces and commas are not included as part of URL. Thanks nAS for fixing.
63 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
64 David Hirtz for reporting.
65 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
66 for reporting.
68 4.5.0, released 2013-02-17
69 # Fix bug where stacked attribute transforms clobber each other;
70 this also means it's no longer possible to override attribute
71 transforms in later modules. No internal code was using this
72 but this may break some clients.
73 # We now use SHA-1 to identify cached definitions, instead of MD5.
74 ! Support display:inline-block
75 ! Support for more white-space CSS values.
76 ! Permit underscores in font families
77 ! Support for page-break-* CSS3 properties when proprietary properties
78 are enabled.
79 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
80 SGML excludes checking. If HTML Purifier is removing too much text
81 and you don't care about full standards compliance, try setting this to
82 'true'.
83 - Use prepend for SPL autoloading on PHP 5.3 and later.
84 - Fix bug with nofollow transform when pre-existing rel exists.
85 - Fix bug where background:url() always gets lower-cased
86 (but not background-image:url())
87 - Fix bug with non lower-case color names in HTML
88 - Fix bug where data URI validation doesn't remove temporary files.
89 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
90 - Don't remove certain empty tags on RemoveEmpty.
92 4.4.0, released 2012-01-18
93 # Removed PEARSax3 handler.
94 # URI.Munge now munges URIs inside the same host that go from https
95 to http. Reported by Neike Taika-Tessaro.
96 # Core.EscapeNonASCIICharacters now always transforms entities to
97 entities, even if target encoding is UTF-8.
98 # Tighten up selector validation in ExtractStyleBlocks.
99 Non-syntactically valid selectors are now rejected, along with
100 some of the more obscure ones such as attribute selectors, the
101 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
102 ID and class selectors now work properly with the relevant
103 configuration attributes. Also, mute errors when parsing CSS
104 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
105 ! Added support for 'scope' attribute on tables.
106 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
107 ! Properly handle sub-lists directly nested inside of lists in
108 a standards compliant way, by moving them into the preceding <li>
109 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
110 limited allowed comments in untrusted situations.
111 ! Implement iframes, and allow them to be used in untrusted mode with
112 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
113 <brad.froehle@gmail.com> for submitting an initial version of the patch.
114 ! The Forms module now works properly for transitional doctypes.
115 ! Added support for internationalized domain names. You need the PEAR
116 Net_IDNA2 module to be in your path; if it is installed, ensure the
117 class can be loaded and then set %Core.EnableIDNA to true.
118 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
119 <yramirez-htmlpurifier@adicio.com> for reporting.
120 - Explicitly initialize anonModule variable to null.
121 - Do not duplicate nofollow if already present. Thanks 178
122 for reporting.
123 - Do not add nofollow if hostname matches our current host. Thanks 178
124 for reporting, and Neike Taika-Tessaro for helping diagnose.
125 - Do not unset parser variable; this fixes intermittent serialization
126 problems. Thanks Neike Taika-Tessaro for reporting, bill
127 <10010tiger@gmail.com> for diagnosing.
128 - Fix iconv truncation bug, where non-UTF-8 target encodings see
129 output truncated after around 8000 characters. Thanks Jörg Ludwig
130 <joerg.ludwig@iserv.eu> for reporting.
131 - Fix broken table content model for XHTML1.1 (and also earlier
132 versions, although the W3C validator doesn't catch those violations).
133 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
135 4.3.0, released 2011-03-27
136 # Fixed broken caching of customized raw definitions, but requires an
137 API change. The old API still works but will emit a warning,
138 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
139 for how to upgrade your code.
140 # Protect against Internet Explorer innerHTML behavior by specially
141 treating attributes with backticks but no angled brackets, quotes or
142 spaces. This constitutes a slight semantic change, which can be
143 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
144 and Mario Heiderich.
145 # Protect against cssText/innerHTML by restricting allowed characters
146 used in fonts further than mandated by the specification and encoding
147 some extra special characters in URLs. Reported by Neike
148 Taika-Tessaro and Mario Heiderich.
149 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
150 ! More types of SPL autoloaders allowed on later versions of PHP.
151 ! Implementations for position, top, left, right, bottom, z-index
152 when %CSS.Trusted is on.
153 ! Add %Cache.SerializerPermissions option for custom serializer
154 directory/file permissions
155 ! Fix longstanding bug in Flash support for non-IE browsers, and
156 allow more wmode attributes.
157 ! Add %CSS.AllowedFonts to restrict permissible font names.
158 - Switch to an iterative traversal of the DOM, which prevents us
159 from running out of stack space for deeply nested documents.
160 Thanks Maxim Krizhanovsky for contributing a patch.
161 - Make removal of conditional IE comments ungreedy; thanks Bernd
162 for reporting.
163 - Escape CDATA before removing Internet Explorer comments.
164 - Fix removal of id attributes under certain conditions by ensuring
165 armor attributes are preserved when recreating tags.
166 - Check if schema.ser was corrupted.
167 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
168 This safety check is only done for HTMLPurifier.auto.php; if you
169 are using standalone or the specialized includes files, you're
170 expected to know what you're doing.
171 - Stop repeatedly writing the cache file after I'm done customizing a
172 raw definition. Reported by ajh.
173 - Switch to using require_once in the Bootstrap to work around bad
174 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
175 - Fix URI handling when hostname is missing but scheme is present.
176 Reported by Neike Taika-Tessaro.
177 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
178 for reporting.
179 - Fix harmless notice from indexing into empty string. Thanks Matthijs
180 Kooijman <matthijs@stdin.nl> for reporting.
181 - Don't autoclose no parent elements are able to support the element
182 that triggered the autoclose. In particular fixes strange behavior
183 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
184 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
186 4.2.0, released 2010-09-15
187 ! Added %Core.RemoveProcessingInstructions, which lets you remove
188 <? ... ?> statements.
189 ! Added %URI.DisableResources functionality; the directive originally
190 did nothing. Thanks David Rothstein for reporting.
191 ! Add documentation about configuration directive types.
192 ! Add %CSS.ForbiddenProperties configuration directive.
193 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
194 to utilize full-screen mode.
195 ! Add optional support for the <code>file</code> URI scheme, enable
196 by explicitly setting %URI.AllowedSchemes.
197 ! Add %Core.NormalizeNewlines options to allow turning off newline
198 normalization.
199 - Fix improper handling of Internet Explorer conditional comments
200 by parser. Thanks zmonteca for reporting.
201 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
202 Thanks sidepodcast for the fix.
203 - Warn if an element is allowed, but an attribute it requires is
204 not allowed.
206 4.1.1, released 2010-05-31
207 - Fix undefined index warnings in maintenance scripts.
208 - Fix bug in DirectLex for parsing elements with a single attribute
209 with entities.
210 - Rewrite CSS output logic for font-family and url(). Thanks Mario
211 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
212 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
213 - Emit an error for CollectErrors if a body is extracted
214 - Fix bug where in background-position for center keyword handling.
215 - Fix infinite loop when a wrapper element is inserted in a context
216 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
217 - Remove +x bit and shebang from index.php; only supported mode is to
218 explicitly call it with php.
219 - Make test script less chatty when log_errors is on.
221 4.1.0, released 2010-04-26
222 ! Support proprietary height attribute on table element
223 ! Support YouTube slideshows that contain /cp/ in their URL.
224 ! Support for data: URI scheme; not enabled by default, add it using
225 %URI.AllowedSchemes
226 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
227 ! Support for Internet Explorer compatibility with %HTML.SafeObject
228 using %Output.FlashCompat.
229 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
230 - Always quote the insides of url(...) in CSS.
232 4.0.0, released 2009-07-07
233 # APIs for ConfigSchema subsystem have substantially changed. See
234 docs/dev-config-bcbreaks.txt for details; in essence, anything that
235 had both namespace and directive now have a single unified key.
236 # Some configuration directives were renamed, specifically:
237 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
238 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
239 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
240 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
241 As usual, the old directive names will still work, but will throw E_NOTICE
242 errors.
243 # The allowed values for class have been relaxed to allow all of CDATA for
244 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
245 %Attr.ClassUseCDATA to false.
246 # Instead of appending the content model to an old content model, a blank
247 element will replace the old content model. You can use #SUPER to get
248 the old content model.
249 ! More robust support for name="" and id=""
250 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
251 configuration, and have changes to that configuration be propagated
252 to all of its children.
253 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
254 the name attribute when set. Use with care. Thanks Ian Cook for
255 sponsoring.
256 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
257 tags that contain non-breaking spaces as well other whitespace. You
258 can also modify which tags should have maintained with
259 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
260 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
261 classes users can use to a specified finite set of classes, and
262 %Attr.ForbiddenClasses, which is the logical inverse.
263 ! You can now maintain your own configuration schema directories by
264 creating a config-schema.php file or passing an extra argument. Check
265 docs/dev-config-schema.html for more details.
266 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
267 your configuration in a compact serial file, which you can unserialize
268 and use directly without having to go through the overhead of setup.
269 - Fix bug where URIDefinition would not get cleared if it's directives got
270 changed.
271 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
272 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
273 - Make %URI.Munge not apply to links that have the same host as your host.
274 - Prevent stray </body> tag from truncating output, if a second </body>
275 is present.
276 . Created script maintenance/rename-config.php for renaming a configuration
277 directive while maintaining its alias. This script does not change source code.
278 . Implement namespace locking for definition construction, to prevent
279 bugs where a directive is used for definition construction but is not
280 used to construct the cache hash.
282 3.3.0, released 2009-02-16
283 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
284 ! Implement generic property list classess
285 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
286 does not do the "right thing" with characters not supported in the output
287 set.
288 - Spellcheck UTF-8: The Secret To Character Encoding
289 - Fix improper removal of the contents of elements with only whitespace. Thanks
290 Eric Wald for reporting.
291 - Fix broken test suite in versions of PHP without spl_autoload_register()
292 - Fix degenerate case with YouTube filter involving double hyphens.
293 Thanks Pierre Attar for reporting.
294 - Fix YouTube rendering problem on certain versions of Firefox.
295 - Fix CSSDefinition Printer problems with decorators
296 - Add text parameter to unit tests, forces text output
297 . Add verbose mode to command line test runner, use (--verbose)
298 . Turn on unit tests for UnitConverter
299 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
300 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
301 tested on Linux.
302 . Removed trailing whitespace from all text files, see
303 remote-trailing-whitespace.php maintenance script.
304 . Convert configuration to use property list backend.
306 3.2.0, released 2008-10-31
307 # Using %Core.CollectErrors forces line number/column tracking on, whereas
308 previously you could theoretically turn it off.
309 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
310 use handleEnd() instead.
311 ! %Output.AttrSort for when you need your attributes in alphabetical order to
312 deal with a bug in FCKEditor. Requested by frank farmer.
313 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
314 ! Proper support for name attribute. It is now allowed and equivalent to the id
315 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
316 is heavy (for all doctypes).
317 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
318 use on hand-written HTML.
319 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
320 the strategy to be used, standalone, on untrusted input.
321 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
322 processing of left angled brackets in smileys and other whatnot.
323 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
324 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
325 the --only-phpt parameter, although for backwards-compatibility the flag
326 will still work.
327 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
328 Users who are not performing inbound filtering, this may seem a little
329 useless, but as a bonus, the test suite and handling of edge cases is also
330 improved.
331 ! Experimental implementation of forms for %HTML.Trusted
332 ! Track column numbers when maintain line numbers is on
333 ! Proprietary 'background' attribute on table-related elements converted into
334 corresponding CSS. Thanks Fusemail for sponsoring this feature!
335 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
336 supertype.
337 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
338 time of operation varies slightly from notifyEnd() as *all* end tokens are
339 processed by the injector before they are subject to the well-formedness rules.
340 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
341 basename of image when not present.
342 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
343 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
344 the other involving an undefined $is_folder error.
345 - Throw error when %Core.Encoding is set to a spurious value. Previously,
346 this errored silently and returned false.
347 - Redirected stderr to stdout for flush error output.
348 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
349 available.
350 - Do not re-munge URL if the output URL has the same host as the input URL.
351 Requested by Chris.
352 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
353 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
354 - Fix bug with inline elements in blockquotes conflicting with strict doctype
355 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
356 - Fix bug where dots and double-dots in absolute URLs without hostname were
357 not collapsed by URIFilter_MakeAbsolute.
358 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
359 by reordering their addition.
360 - Will now throw exception on many error conditions during lexer creation; also
361 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
362 is being used.
363 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
364 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
365 Reported by David Morton.
366 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
367 for more interesting filter-backtracking
368 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
369 index to reprocess tokens.
370 . StringHashParser now allows for multiline sections with "empty" content;
371 previously the section would remain undefined.
372 . Added --quick option to multitest.php, which tests only the most recent
373 release for each series.
374 . Added --distro option to multitest.php, which accepts either 'normal' or
375 'standalone'. This supercedes --exclude-normal and --exclude-standalone
377 3.1.1, released 2008-06-19
378 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
379 In order to enable this again, please set %URI.MungeResources to true.
380 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
381 and height/width HTML with %HTML.MaxImgLength.
382 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
383 for sponsoring this feature. Check out the corresponding documentation
384 for details. (Att Nightly testers: The API for this feature changed before
385 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
386 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
387 ! Implemented post URI filtering. Set member variable $post to true to set
388 a URIFilter as such.
389 ! Allow modules to define injectors via $info_injector. Injectors are
390 automatically disabled if injector's needed elements are not found.
391 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
392 Thanks Chris for sponsoring. If you've been using ad hoc code from the
393 forums, PLEASE use this instead.
394 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
395 embedded, tag name, attribute name, CSS property name). See %URI.Munge
396 for more details. Requested by Jochem Blok.
397 - Disable percent height/width attributes for img.
398 - AttrValidator operations are now atomic; updates to attributes are not
399 manifest in token until end of operations. This prevents naughty internal
400 code from directly modifying CurrentToken when they're not supposed to.
401 This semantics change was requested by frank farmer.
402 - Percent encoding checks enabled for URI query and fragment
403 - Fix stray backslashes in font-family; CSS Unicode character escapes are
404 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
405 for reporting.
406 - Improve parseCDATA algorithm to take into account newline normalization
407 - Account for browser confusion between Yen character and backslash in
408 Shift_JIS encoding. This fix generalizes to any other encoding which is not
409 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
410 - Fix missing configuration parameter in Generator calls. Thanks vs for the
411 partial patch.
412 - Improved adherence to Unicode by checking for non-character codepoints.
413 Thanks Geoffrey Sneddon for reporting. This may result in degraded
414 performance for extremely large inputs.
415 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
416 for reporting.
417 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
418 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
419 this class.
420 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
421 to __construct($min, $max). __construct(true) is equivalent to
422 __construct('0').
423 . Added HTMLPurifier_AttrDef_Switch class
424 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
425 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
426 get this called with the configuration object. All modules now
427 use this rather than __construct(), although legacy code using constructors
428 will still work--the new format, however, lets modules access the
429 configuration object for HTML namespace dependant tweaks.
430 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
431 . ConfigSchema data-structure heavily optimized; on average it uses a third
432 the memory it did previously. The interface has changed accordingly,
433 consult changes to HTMLPurifier_Config for details.
434 . Variable parsing types now are magic integers instead of strings
435 . Added benchmark for ConfigSchema
436 . HTMLPurifier_Generator requires $config and $context parameters. If you
437 don't know what they should be, use HTMLPurifier_Config::createDefault()
438 and new HTMLPurifier_Context().
439 . Printers now properly distinguish between output configuration, and
440 target configuration. This is not applicable to scripts using
441 the Printers for HTML Purifier related tasks.
442 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
443 fatal errors will ensue.
444 . URIFilter->prepare can return false in order to abort loading of the filter
445 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
446 an external resource.
447 . %URI.Munge functionality factored out into a post-filter class.
448 . Added CurrentCSSProperty context variable during CSS validation
450 3.1.0, released 2008-05-18
451 # Unnecessary references to objects (vestiges of PHP4) removed from method
452 signatures. The following methods do not need references when assigning from
453 them and will result in E_STRICT errors if you try:
454 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
455 + HTMLPurifier_ConfigSchema::instance()
456 + HTMLPurifier_DefinitionCacheFactory::instance()
457 + HTMLPurifier_DefinitionCacheFactory->create()
458 + HTMLPurifier_DoctypeRegistry->register()
459 + HTMLPurifier_DoctypeRegistry->get()
460 + HTMLPurifier_HTMLModule->addElement()
461 + HTMLPurifier_HTMLModule->addBlankElement()
462 + HTMLPurifier_LanguageFactory::instance()
463 # Printer_ConfigForm's get*() functions were static-ified
464 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
465 form of tag@attr, NOT tag.attr (which will throw an error and won't do
466 anything). This is for forwards compatibility with XML; you'd do best
467 to migrate an %HTML.AllowedAttributes directives to this syntax too.
468 ! Allow index to be false for config from form creation
469 ! Added HTMLPurifier::VERSION constant
470 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
471 and allows for version numbers like "3.1.0-dev".
472 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
473 ! HTML Purifier's URI handling is a lot more robust, with much stricter
474 validation checks and better percent encoding handling. Thanks Gareth Heyes
475 for indicating security vulnerabilities from lax percent encoding.
476 ! Bootstrap autoloader deals more robustly with classes that don't exist,
477 preventing class_exists($class, true) from barfing.
478 - InterchangeBuilder now alphabetizes its lists
479 - Validation error in configdoc output fixed
480 - Iconv and other encoding errors muted even with custom error handlers that
481 do not honor error_reporting
482 - Add protection against imagecrash attack with CSS height/width
483 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
484 - Fixed and revamped broken ConfigForm smoketest
485 - Bug with bool/null fields in Printer_ConfigForm fixed
486 - Bug with global forbidden attributes fixed
487 - Improved error messages for allowed and forbidden HTML elements and attributes
488 - Missing (or null) in configdoc documentation restored
489 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
490 of DOM), HTML Purifier punts to DirectLex
491 - Fatal error with unserialization of ScriptRequired
492 - Created directories are now chmod'ed properly
493 - Fixed bug with fallback languages in LanguageFactory
494 - Standalone testing setup properly with autoload
495 . Out-of-date documentation revised
496 . UTF-8 encoding check optimization as suggested by Diego
497 . HTMLPurifier_Error removed in favor of exceptions
498 . More copy() function removed; should use clone instead
499 . More extensive unit tests for HTMLDefinition
500 . assertPurification moved to central harness
501 . HTMLPurifier_Generator accepts $config and $context parameters during
502 instantiation, not runtime
503 . Double-quotes outside of attribute values are now unescaped
505 3.1.0rc1, released 2008-04-22
506 # Autoload support added. Internal require_once's removed in favor of an
507 explicit require list or autoloading. To use HTML Purifier,
508 you must now either use HTMLPurifier.auto.php
509 or HTMLPurifier.includes.php; setting the include path and including
510 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
511 as well to register our autoload handler (or modify your autoload function
512 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
513 HTMLPurifier.safe-includes.php for a less performance friendly but more
514 user-friendly library load.
515 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
516 information is stored in the ConfigSchema directory, and the
517 maintenance/generate-schema-cache.php generates the schema.ser file, which
518 is now instantiated. Support for userland schema changes coming soon!
519 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
520 alias; to get rid of these errors just modify your configuration to use
521 the new directive name.
522 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
523 enabled using %Filter.$filter_name or by setting your own filters using
524 %Filter.Custom
525 # Directive-level safety properties superceded in favor of module-level
526 safety. Internal method HTMLModule->addElement() has changed, although
527 the externally visible HTMLDefinition->addElement has *not* changed.
528 ! Extra utility classes for testing and non-library operations can
529 be found in extras/. Specifically, these are FSTools and ConfigDoc.
530 You may find a use for these in your own project, but right now they
531 are highly experimental and volatile.
532 ! Integration with PHPT allows for automated smoketests
533 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
534 by Chris. You can enable them with %HTML.Proprietary if your client
535 demands them.
536 ! Support for !important CSS cascade modifier. By default, this will be stripped
537 from CSS, but you can enable it using %CSS.AllowImportant
538 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
539 to true to use them.
540 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
541 Developer error (not enduser error) can cause these to be triggered.
542 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
543 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
544 mucking around with HTMLPurifier_CSSDefinition
545 ! ConfigDoc output has been enhanced with version and deprecation info.
546 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
547 - Autoclose now operates iteratively, i.e. <span><span><div> now has
548 both span tags closed.
549 - Various HTMLPurifier_Config convenience functions now accept another parameter
550 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
551 global default.
552 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
553 - Fix bug in ExtractStyleBlocks with comments in style tags
554 - Fix bug in comment parsing for DirectLex
555 - Flush output now displayed when in command line mode for unit tester
556 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
557 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
558 on the same element without emitting errors.
559 - Fixed fatal error in PH5P lexer with invalid tag names
560 . Plugins now get their own changelogs according to project conventions.
561 . Convert tokens to use instanceof, reducing memory footprint and
562 improving comparison speed.
563 . Dry runs now supported in SimpleTest; testing facilities improved
564 . Bootstrap class added for handling autoloading functionality
565 . Implemented recursive glob at FSTools->globr
566 . ConfigSchema now has instance methods for all corresponding define*
567 static methods.
568 . A couple of new historical maintenance scripts were added.
569 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
570 . tests/index.php can now be run from any directory.
571 . HTMLPurifier_Token subclasses split into seperate files
572 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
573 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
574 . New --php=php flag added, allows PHP executable to be specified (command
575 line only!)
576 . htmlpurifier_add_test() preferred method to translate test files in to
577 classes, because it handles PHPT files too.
578 . Debugger class is deprecated and will be removed soon.
579 . Command line argument parsing for testing scripts revamped, now --opt value
580 format is supported.
581 . Smoketests now cleanup after magic quotes
582 . Generator now can output comments (however, comments are still stripped
583 from HTML Purifier output)
584 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
585 HTMLPurifier_VarParser->parse()
586 . Integers auto-cast into float type by VarParser.
587 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
588 during cache generation
589 . Reordered script calls in maintenance/flush.php
590 . Command line scripts now honor exit codes
591 . When --flush fails in unit testers, abort tests and print message
592 . Improved documentation in docs/dev-flush.html about the maintenance scripts
593 . copy() methods removed in favor of clone keyword
595 3.0.0, released 2008-01-06
596 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
597 until PHP 4 is completely deprecated, but no new features will be added
598 to it.
599 + Visibility declarations added
600 + Constructor methods renamed to __construct()
601 + PHP4 reference cruft removed (in progress)
602 ! CSS properties are now case-insensitive
603 ! DefinitionCacheFactory now can register new implementations
604 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
605 documents and cleaning their contents up. Requires the CSSTidy library
606 <http://csstidy.sourceforge.net/>. You can access the blocks with the
607 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
608 The output CSS can also be "scoped" for a specific element, use:
609 %Filter.ExtractStyleBlocksScope
610 ! Experimental support for some proprietary CSS attributes allowed:
611 opacity (and all of the browser-specific equivalents) and scrollbar colors.
612 Enable by setting %CSS.Proprietary to true.
613 - Colors missing # but in hex form will be corrected
614 - CSS Number algorithm improved
615 - Unit testing and multi-testing now on steroids: command lines,
616 XML output, and other goodies now added.
617 . Unit tests for Injector improved
618 . New classes:
619 + HTMLPurifier_AttrDef_CSS_AlphaValue
620 + HTMLPurifier_AttrDef_CSS_Filter
621 . Multitest now has a file docblock
623 2.1.3, released 2007-11-05
624 ! tests/multitest.php allows you to test multiple versions by running
625 tests/index.php through multiple interpreters using `phpv` shell
626 script (you must provide this script!)
627 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
628 on some systems.
629 - Injector algorithm further refined: off-by-one error regarding skip
630 counts for dormant injectors fixed
631 - Corrective blockquote definition now enabled for HTML 4.01 Strict
632 - Fatal error when <img> tag (or any other element with required attributes)
633 has 'id' attribute fixed, thanks NykO18 for reporting
634 - Fix warning emitted when a non-supported URI scheme is passed to the
635 MakeAbsolute URIFilter, thanks NykO18 (again)
636 - Further refine AutoParagraph injector. Behavior inside of elements
637 allowing paragraph tags clarified: only inline content delimeted by
638 double newlines (not block elements) are paragraphed.
639 - Buggy treatment of end tags of elements that have required attributes
640 fixed (does not manifest on default tag-set)
641 - Spurious internal content reorganization error suppressed
642 - HTMLDefinition->addElement now returns a reference to the created
643 element object, as implied by the documentation
644 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
645 - Fix a theoretical class of infinite loops from DirectLex reported
646 by Nate Abele
647 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
648 in PHP 5.1
649 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
650 HTMLDefinition errors, this may indicate problems with error-collecting
651 facilities in PHP 5
652 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
653 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
654 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
655 to better communicate its purpose
656 . Error unit tests can now specify the expectation of no errors. Future
657 iterations of the harness will be extremely strict about what errors
658 are allowed
659 . Extend Injector hooks to allow for more powerful injector routines
660 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
661 method
662 . Doxygen configuration file updated, with minor improvements
663 . Test runner now checks for similarly named files in conf/ directory too.
664 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
665 outputted
666 . Maintenance script for generating PH5P patch added, original PH5P source
667 file also added under version control
668 . Full unit test runner script title made more descriptive with PHP version
669 . Updated INSTALL file to state that 4.3.7 is the earliest version we
670 are actively testing
672 2.1.2, released 2007-09-03
673 ! Implemented Object module for trusted users
674 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
675 this to your code:
676 require_once 'HTMLPurifier/Lexer/PH5P.php';
677 $config->set('Core', 'LexerImpl', 'PH5P');
678 Note that this Lexer introduces some classes not in the HTMLPurifier
679 namespace. Also, this is PHP5 only.
680 ! CSS property border-spacing implemented
681 - Fix non-visible parsing error in DirectLex with empty tags that have
682 slashes inside attribute values.
683 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
684 accepted as valid CSS. Usually non-visible, because this styling is the
685 default for tables in most browsers. Thanks Brett Zamir for pointing
686 this out.
687 - Fix validation errors in configuration form
688 - Hammer out a bunch of edge-case bugs in the standalone distribution
689 - Inclusion reflection removed from URISchemeRegistry; you must manually
690 include any new schema files you wish to use
691 - Numerous typo fixes in documentation thanks to Brett Zamir
692 . Unit test refactoring for one logical test per test function
693 . Config and context parameters in ComplexHarness deprecated: instead, edit
694 the $config and $context member variables
695 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
696 really make a difference, but is good for completeness sake
697 . merge-library.php script refactored for greater code reusability and
698 PHP4 compatibility
700 2.1.1, released 2007-08-04
701 - Fix show-stopper bug in %URI.MakeAbsolute functionality
702 - Fix PHP4 syntax error in standalone version
703 . Add prefix directory to include path for standalone, this prevents
704 other installations from clobbering the standalone's URI schemes
705 . Single test methods can be invoked by prefixing with __only
707 2.1.0, released 2007-08-02
708 # flush-htmldefinition-cache.php superseded in favor of a generic
709 flush-definition-cache.php script, you can clear a specific cache
710 by passing its name as a parameter to the script
711 ! Phorum mod implemented for HTML Purifier
712 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
713 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
714 for PHP4 (DirectLex).
715 ! Standalone file now available, which greatly reduces the amount of
716 includes (although there are still a few files that reside in the
717 standalone folder)
718 ! Relative URIs can now be transformed into their absolute equivalents
719 using %URI.Base and %URI.MakeAbsolute
720 ! Ruby implemented for XHTML 1.1
721 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
722 for more details
723 ! UTF-8 font names now supported in CSS
724 - AutoFormatters emit friendly error messages if tags or attributes they
725 need are not allowed
726 - ConfigForm's compactification of directive names is now configurable
727 - AutoParagraph autoformatter algorithm refined after field-testing
728 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
729 blockquote wrapping
730 - Contents of <style> tags removed by default when tags are removed
731 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
732 for output cache invalidation
733 . ConfigForm printer now can retrieve CSS and JS files as strings, in
734 case HTML Purifier's directory is not publically accessible
735 . Introduce new text/itext configuration directive values: these represent
736 longer strings that would be more appropriately edited with a textarea
737 . Allow newlines to act as separators for lists, hashes, lookups and
738 %HTML.Allowed
739 . ConfigForm generates textareas instead of text inputs for lists, hashes,
740 lookups, text and itext fields
741 . Hidden element content removal genericized: %Core.HiddenElements can
742 be used to customize this behavior, by default <script> and <style> are
743 hidden
744 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
745 . Custom ChildDef added to default include list
746 . URIScheme reflection improved: will not attempt to include file if class
747 already exists. May clobber autoload, so I need to keep an eye on it
748 . ConfigSchema heavily optimized, will only collect information and validate
749 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
750 . AttrDef_URI unit tests and implementation refactored
751 . benchmarks/ directory now protected from public view with .htaccess file;
752 run the tests via command line
753 . URI scheme is munged off if there is no authority and the scheme is the
754 default one
755 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
756 . Interface for URIScheme changed
757 . Generic URI object to hold components of URI added, most systems involved
758 in URI validation have been migrated to use it
759 . Custom filtering for URIs factored out to URIDefinition interface for
760 maximum extensibility
762 2.0.1, released 2007-06-27
763 ! Tag auto-closing now based on a ChildDef heuristic rather than a
764 manually set auto_close array; some behavior may change
765 ! Experimental AutoFormat functionality added: auto-paragraph and
766 linkify your HTML input by setting %AutoFormat.AutoParagraph and
767 %AutoFormat.Linkify to true
768 ! Newlines normalized internally, and then converted back to the
769 value of PHP_EOL. If this is not desired, set your newline format
770 using %Output.Newline.
771 ! Beta error collection, messages are implemented for the most generic
772 cases involving Lexing or Strategies
773 - Clean up special case code for <script> tags
774 - Reorder includes for DefinitionCache decorators, fixes a possible
775 missing class error
776 - Fixed bug where manually modified definitions were not saved via cache
777 (mostly harmless, except for the fact that it would be a little slower)
778 - Configuration objects with different serials do not clobber each
779 others when revision numbers are unequal
780 - Improve Serializer DefinitionCache directory permissions checks
781 - DefinitionCache no longer throws errors when it encounters old
782 serial files that do not conform to the current style
783 - Stray xmlns attributes removed from configuration documentation
784 - configForm.php smoketest no longer has XSS vulnerability due to
785 unescaped print_r output
786 - Printer adheres to configuration's directives on output format
787 - Fix improperly named form field in ConfigForm printer
788 . Rewire some test-cases to swallow errors rather than expect them
789 . HTMLDefinition printer updated with some of the new attributes
790 . DefinitionCache keys reordered to reflect precedence: version number,
791 hash, then revision number
792 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
793 . Interlinking in configuration documentation added using
794 Injector_PurifierLinkify
795 . Directives now keep track of aliases to themselves
796 . Error collector now requires a severity to be passed, use PHP's internal
797 error constants for this
798 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
799 much easier selective embedding of configuration values
800 . Doctype objects now accept public and system DTD identifiers
801 . %HTML.Doctype is now constrained by specific values, to specify a custom
802 doctype use new %HTML.CustomDoctype
803 . ConfigForm truncates long directives to keep the form small, and does
804 not re-output namespaces
806 2.0.0, released 2007-06-20
807 # Completely refactored HTMLModuleManager, decentralizing safety
808 information
809 # Transform modules changed to Tidy modules, which offer more flexibility
810 and better modularization
811 # Configuration object now finalizes itself when a read operation is
812 performed on it, ensuring that its internal state stays consistent.
813 To revert this behavior, you can set the $autoFinalize member variable
814 off, but it's not recommended.
815 # New compact syntax for AttrDef objects that can be used to instantiate
816 new objects via make()
817 # Definitions (esp. HTMLDefinition) are now cached for a significant
818 performance boost. You can disable caching by setting %Core.DefinitionCache
819 to null. You CANNOT edit raw definitions without setting the corresponding
820 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
821 # Contents between <script> tags are now completely removed if <script>
822 is not allowed
823 # Prototype-declarations for Lexer removed in favor of configuration
824 determination of Lexer implementations.
825 ! HTML Purifier now works in PHP 4.3.2.
826 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
827 breeze!
828 ! Configuration directives that accept hashes now allow new string
829 format: key1:value1,key2:value2
830 ! ConfigDoc now factored into OOP design
831 ! All deprecated elements now natively supported
832 ! Implement TinyMCE styled whitelist specification format in
833 %HTML.Allowed
834 ! Config object gives more friendly error messages when things go wrong
835 ! Advanced API implemented: easy functions for creating elements (addElement)
836 and attributes (addAttribute) on HTMLDefinition
837 ! Add native support for required attributes
838 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
839 - DOMLex will not emit errors when a custom error handler that does not
840 honor error_reporting is used
841 - StrictBlockquote child definition refrains from wrapping whitespace
842 in tags now.
843 - Bug resulting from tag transforms to non-allowed elements fixed
844 - ChildDef_Custom's regex generation has been improved, removing several
845 false positives
846 . Unit test for ElementDef created, ElementDef behavior modified to
847 be more flexible
848 . Added convenience functions for HTMLModule constructors
849 . AttrTypes now has accessor functions that should be used instead
850 of directly manipulating info
851 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
852 . Add extra protection in AttrDef_URI against phantom Schemes
853 . Doctype object added to HTMLDefinition which describes certain aspects
854 of the operational document type
855 . Lexer is now pre-emptively included, with a conditional include for the
856 PHP5 only version.
857 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
858 . DirectLex can now track line-numbers
859 . Preliminary error collector is in place, although no code actually reports
860 errors yet
861 . Factor out most of ValidateAttributes to new AttrValidator class
863 1.6.1, released 2007-05-05
864 ! Support for more deprecated attributes via transformations:
865 + hspace and vspace in img
866 + size and noshade in hr
867 + nowrap in td
868 + clear in br
869 + align in caption, table, img and hr
870 + type in ul, ol and li
871 ! DirectLex now preserves text in which a < bracket is followed by
872 a non-alphanumeric character. This means that certain emoticons
873 are now preserved.
874 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
875 images will hang around with an empty src
876 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
877 to enable
878 ! CSS property white-space now allows nowrap (supported in all modern
879 browsers) but not others (which have spotty browser implementations)
880 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
881 lang is now moved over to xml:lang.
882 ! Attribute transformation smoketest available at smoketests/attrTransform.php
883 ! Transformation of font's size attribute now handles super-large numbers
884 - Possibly fatal bug with __autoload() fixed in module manager
885 - Invert HTMLModuleManager->addModule() processing order to check
886 prefixes first and then the literal module
887 - Empty strings get converted to empty arrays instead of arrays with
888 an empty string in them.
889 - Merging in attribute lists now works.
890 . Demo script removed: it has been added to the website's repository
891 . Basic.php script modified to work out of the box
892 . Refactor AttrTransform classes to reduce duplication
893 . AttrTransform_TextAlign axed in favor of a more general
894 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
895 see how the new equivalent is implemented
896 . Unit tests now use exclusively assertIdentical
898 1.6.0, released 2007-04-01
899 ! Support for most common deprecated attributes via transformations:
900 + bgcolor in td, th, tr and table
901 + border in img
902 + name in a and img
903 + width in td, th and hr
904 + height in td, th
905 ! Support for CSS attribute 'height' added
906 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
907 and %Attr.AllowedRev to activate
908 - You can define ID blacklists using regular expressions via
909 %Attr.IDBlacklistRegexp
910 - Error messages are emitted when you attempt to "allow" elements or
911 attributes that HTML Purifier does not support
912 - Fix segfault in unit test. The problem is not very reproduceable and
913 I don't know what causes it, but a six line patch fixed it.
915 1.5.0, released 2007-03-23
916 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
917 doesn't actually do anything yet, but keep your eyes peeled.
918 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
919 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
920 I am loathe to release beta quality APIs, but this is exactly that;
921 don't use the internal interfaces if you're not willing to do migration
922 later on.
923 - Allow 'x' subtag in language codes
924 - Fixed buggy chameleon-support for ins and del
925 . Added support for IDREF attributes (i.e. for)
926 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
927 . Removed context variable ParentType, replaced with IsInline, which
928 is false when you're not inline and an integer of the parent that
929 caused you to become inline when you are (so possibly zero)
930 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
931 and HTMLDefinition->content_sets
932 . StrictBlockquote now reports what elements its supposed to allow,
933 rather than what it does allow
934 . Removed HTMLDefinition->info_flow_elements in favor of
935 HTMLDefinition->content_sets['Flow']
936 . Removed redundant "exclusionary" definitions from DTD roster
937 . StrictBlockquote now requires a construction parameter as if it
938 were an Required ChildDef, this is the "real" set of allowed elements
939 . AttrDef partitioned into HTML, CSS and URI segments
940 . Modify Youtube filter regexp to be multiline
941 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
942 some edge cases where a DOMDocument class exists in a PHP4 environment
943 due to DOM XML extension.
945 1.4.1, released 2007-01-21
946 ! docs/enduser-youtube.html updated according to new functionality
947 - YouTube IDs can have underscores and dashes
949 1.4.0, released 2007-01-21
950 ! Implemented list-style-image, URIs now allowed in list-style
951 ! Implemented background-image, background-repeat, background-attachment
952 and background-position CSS properties. Shorthand property background
953 supports all of these properties.
954 ! Configuration documentation looks nicer
955 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
956 characters while %Core.Encoding is set to a non-UTF-8 encoding.
957 ! Support for configuration directive aliases added
958 ! Config object can now be instantiated from ini files
959 ! YouTube preservation code added to the core, with two lines of code
960 you can add it as a filter to your code. See smoketests/preserveYouTube.php
961 for sample code.
962 ! Moved SLOW to docs/enduser-slow.html and added code examples
963 - Replaced version check with functionality check for DOM (thanks Stephen
964 Khoo)
965 . Added smoketest 'all.php', which loads all other smoketests via frames
966 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
967 . Added convenient single test selector form on test runner
969 1.3.2, released 2006-12-25
970 ! HTMLPurifier object now accepts configuration arrays, no need to manually
971 instantiate a configuration object
972 ! Context object now accessible to outside
973 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
974 also corresponding smoketest preserveYouTube.php.
975 ! Added purifyArray(), which takes a list of HTML and purifies it all
976 ! Added static member variable $version to HTML Purifier with PHP-compatible
977 version number string.
978 - Fixed fatal error thrown by upper-cased language attributes
979 - printDefinition.php: added labels, added better clarification
980 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
981 a HTMLPurifier_Config object.
983 1.3.1, released 2006-12-06
984 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
985 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
986 (thanks to .mario for reporting this)
987 . Standardized all attribute handling variables to attr, made it plural
989 1.3.0, released 2006-11-26
990 # Invalid images are now removed, rather than replaced with a dud
991 <img src="" alt="Invalid image" />. Previous behavior can be restored
992 with new directive %Core.RemoveInvalidImg set to false.
993 ! (X)HTML Strict now supported
994 + Transparently handles inline elements in block context (blockquote)
995 ! Added GET method to demo for easier validation, added 50kb max input size
996 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
997 ! New directive %HTML.Parent, allows you to only allow inline content
998 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
999 users narrow the set of allowed tags
1000 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1001 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1002 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1003 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1004 service to avoid PageRank leaks or warn users that they are exiting your site.
1005 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1006 the configuration settings and see how the internal rules are affected.
1007 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1008 xssAttacks.php smoketest updated accordingly.
1009 - Added missing type to ChildDef_Chameleon
1010 - Remove Tidy option from demo if there is not Tidy available
1011 . ChildDef_Required guards against empty tags
1012 . Lookup table HTMLDefinition->info_flow_elements added
1013 . Added peace-of-mind variable initialization to Strategy_FixNesting
1014 . Added HTMLPurifier->info_parent_def, parent child processing made special
1015 . Added internal documents briefly summarizing future progression of HTML
1016 . HTMLPurifier_Config->getBatch($namespace) added
1017 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1018 . Refactored ChildDef classes into their own files
1020 1.2.0, released 2006-11-19
1021 # ID attributes now disabled by default. New directives:
1022 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1023 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1024 so that they don't collide with your IDs
1025 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1026 instances of user content on the page
1027 + Profuse documentation on how to use these available in docs/enduser-id.txt
1028 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1029 ! Added percent encoding normalization
1030 ! XSS attacks smoketest given facelift
1031 ! Configuration documentation now has table of contents
1032 ! Added %URI.DisableExternal, which prevents links to external websites. You
1033 can also use %URI.Host to permit absolute linking to subdomains
1034 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1035 - Type variable in HTMLDefinition was not being set properly, fixed
1036 - Documentation updated
1037 + TODO added request Phalanger
1038 + TODO added request Native compression
1039 + TODO added request Remove redundant tags
1040 + TODO added possible plaintext formatter for HTML Purifier documentation
1041 + Updated ConfigDoc TODO
1042 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1043 and AttrDef/Host.php
1044 + Revamped documentation into HTML, along with misc updates
1045 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1046 to retrieve a non-existent variable
1047 . Switched to purify()-wide Context object registry
1048 . Refactored unit tests to minimize duplication
1049 . XSS attack sheet updated
1050 . configdoc.xml now has xml:space attached to default value nodes
1051 . Allow configuration directives to permit null values
1052 . Cleaned up test-cases to remove unnecessary swallowErrors()
1054 1.1.2, released 2006-09-30
1055 ! Add HTMLPurifier.auto.php stub file that configures include_path
1056 - Documentation updated
1057 + INSTALL document rewritten
1058 + TODO added semi-lossy conversion
1059 + API Doxygen docs' file exclusions updated
1060 + Added notes on HTML versus XML attribute whitespace handling
1061 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1062 + Noted that config object's definitions are cached versions
1063 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1064 - ftp:// URIs now have their typecodes checked
1065 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1066 . Line endings standardized throughout project (svn:eol-style standardized)
1067 . Refactored parseData() to general Lexer class
1068 . Tester named "HTML Purifier" not "HTMLPurifier"
1070 1.1.1, released 2006-09-24
1071 ! Configuration option to optionally Tidy up output for indentation to make up
1072 for dropped whitespace by DOMLex (pretty-printing for the entire application
1073 should be done by a page-wide Tidy)
1074 - Various documentation updates
1075 - Fixed parse error in configuration documentation script
1076 - Fixed fatal error in benchmark scripts, slightly augmented
1077 - As far as possible, whitespace is preserved in-between table children
1078 - Sample test-settings.php file included
1080 1.1.0, released 2006-09-16
1081 ! Directive documentation generation using XSLT
1082 ! XHTML can now be turned off, output becomes <br>
1083 - Made URI validator more forgiving: will ignore leading and trailing
1084 quotes, apostrophes and less than or greater than signs.
1085 - Enforce alphanumeric namespace and directive names for configuration.
1086 - Table child definition made more flexible, will fix up poorly ordered elements
1087 . Renamed ConfigDef to ConfigSchema
1089 1.0.1, released 2006-09-04
1090 - Fixed slight bug in DOMLex attribute parsing
1091 - Fixed rejection of case-insensitive configuration values when there is a
1092 set of allowed values. This manifested in %Core.Encoding.
1093 - Fixed rejection of inline style declarations that had lots of extra
1094 space in them. This manifested in TinyMCE.
1096 1.0.0, released 2006-09-01
1097 ! Shorthand CSS properties implemented: font, border, background, list-style
1098 ! Basic color keywords translated into hexadecimal values
1099 ! Table CSS properties implemented
1100 ! Support for charsets other than UTF-8 (defined by iconv)
1101 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1102 - Fixed broken numeric entity conversion
1103 - API documentation completed
1104 . (HTML|CSS)Definition de-singleton-ized
1106 1.0.0beta, released 2006-08-16
1107 ! First public release, most functionality implemented. Notable omissions are:
1108 + Shorthand CSS properties
1109 + Table CSS properties
1110 + Deprecated attribute transformations
1112 vim: et sw=4 sts=4