1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 4.9.2, unknown release date
13 - Fixes PHP 5.3 compatibility
15 4.9.1, released 2017-03-08
16 ! %URI.DefaultScheme can now be set to null, in which case
17 all relative paths are removed.
18 ! New CSS properties: min-width, max-width, min-height, max-height (#94)
19 ! Transparency (rgba) and hsl/hsla supported where color CSS is present.
20 Thanks @fxbt for contributing the patch. (#118)
21 - When idn_to_ascii is defined, we might accept malformed
22 hostnames. Apply validation to the result in such cases.
23 - Close directory when done in Serializer DefinitionCache (#100)
24 - Deleted some asserts to avoid linters from choking (#97)
25 - Rework Serializer cache behavior to avoid chmod'ing if possible (#32)
26 - Embedded semicolons in strings in CSS are now handled correctly!
27 - We accidentally dropped certain Unicode characters if there was
28 one or more invalid characters. This has been fixed, thanks
29 to mpyw <ryosuke_i_628@yahoo.co.jp>
30 - Fix for "Don't truncate upon encountering </div> when using DOMLex"
31 caused a regression with HTML 4.01 Strict parsing with libxml 2.9.1
32 (and maybe later versions, but known OK with libxml 2.9.4). The
33 fix is to go about handling truncation a bit more cleverly so that
34 we can wrap with divs (sidestepping the bug) but slurping out the
35 rest of the text in case it ran off the end. (#78)
36 - Fix PREG_BACKTRACK_LIMIT_ERROR in HTMLPurifier_Filter_ExtractStyle.
37 Thanks @breathbath for contributing the report and fix (#120)
38 - Fix entity decoding algorithm to be more conservative about
39 decoding entities that are missing trailing semicolon.
40 To get old behavior, set %Core.LegacyEntityDecoder to true.
42 - Workaround libxml bug when HTML tags are embedded inside
43 script tags. To disable workaround set %Core.AggressivelyRemoveScript
45 # By default, when a link has a target attribute associated
46 with it, we now also add rel="noopener" in order to
47 prevent the new window from being able to overwrite
48 the original frame. To disable this protection,
49 set %HTML.TargetNoopener to FALSE.
51 4.9.0 was cut on Git but never properly released; when we did the
52 real release we decided to skip this version number.
54 4.8.0, released 2016-07-16
55 # By default, when a link has a target attribute associated
56 with it, we now also add rel="noreferrer" in order to
57 prevent the new window from being able to overwrite
58 the original frame. To disable this protection,
59 set %HTML.TargetNoreferrer to FALSE.
60 ! Full PHP 7 compatibility, the test suite is ALL GO.
61 ! %CSS.AllowDuplicates permits duplicate CSS properties.
62 ! Support for 'tel' URIs.
63 ! Partial support for 'border-radius' properties when %CSS.AllowProprietary is true.
64 The slash syntax, i.e., 'border-radius: 2em 1em 4em / 0.5em 3em' is not
66 ! %Attr.ID.HTML5 turns on HTML5-style ID handling.
67 - alt truncation could result in malformed UTF-8 sequence. Don't
68 truncate. Thanks Brandon Farber for reporting.
69 - Linkify regex is smarter, based off of Gruber's regex.
70 - IDNA supported natively on PHP 5.3 and later.
71 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
73 - Minor bounds error fix to squash a PHP 7 notice.
74 - Support non-/tmp temporary directories for data:// validation
75 - Give a better error message when a user attempts to allow
76 ul/ol without allowing li.
77 - On some versions of PHP, the Serializer DefinitionCache could
78 infinite loop when the directory exists but is not listable. (#49)
79 - Don't match for <body> inside comments with
80 %Core.ConvertDocumentToFragment. (#67)
81 - SafeObject is now less case sensitive. (#57)
82 - AutoFormat.RemoveEmpty.Predicate now correctly renders in
85 4.7.0, released 2015-08-04
86 # opacity is now considered a "tricky" CSS property rather than a
88 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
89 an element should be considered "empty" (maybe preserve if it
90 has attributes), and modify iframe support so that the iframe
91 is removed if it is missing a src attribute. Thanks meeva for
93 - Don't truncate upon encountering </div> when using DOMLex. Thanks
94 Myrto Christina for finally convincing me to fix this.
95 - Update YouTube filter for new code.
96 - Fix parsing of rgb() values with spaces in them for 'border'
98 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
101 4.6.0, released 2013-11-30
102 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
103 Please update any verification scripts you may have.
104 # URI parsing algorithm was made more strict, so only prefixes which
105 looks like schemes will actually be schemes. Thanks
106 Michael Gusev <mgusev@sugarcrm.com> for fixing.
107 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
109 ! New directive %Core.AllowHostnameUnderscore which allows underscores
111 - Eliminate quadratic behavior in DOMLex by using a proper queue.
112 Thanks Ole Laursen for noticing this.
113 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
114 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
115 Networks for sponsoring this work.
116 - Made Linkify URL parser a bit less permissive, so that non-breaking
117 spaces and commas are not included as part of URL. Thanks nAS for fixing.
118 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
119 David Hirtz for reporting.
120 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
123 4.5.0, released 2013-02-17
124 # Fix bug where stacked attribute transforms clobber each other;
125 this also means it's no longer possible to override attribute
126 transforms in later modules. No internal code was using this
127 but this may break some clients.
128 # We now use SHA-1 to identify cached definitions, instead of MD5.
129 ! Support display:inline-block
130 ! Support for more white-space CSS values.
131 ! Permit underscores in font families
132 ! Support for page-break-* CSS3 properties when proprietary properties
134 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
135 SGML excludes checking. If HTML Purifier is removing too much text
136 and you don't care about full standards compliance, try setting this to
138 - Use prepend for SPL autoloading on PHP 5.3 and later.
139 - Fix bug with nofollow transform when pre-existing rel exists.
140 - Fix bug where background:url() always gets lower-cased
141 (but not background-image:url())
142 - Fix bug with non lower-case color names in HTML
143 - Fix bug where data URI validation doesn't remove temporary files.
144 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
145 - Don't remove certain empty tags on RemoveEmpty.
147 4.4.0, released 2012-01-18
148 # Removed PEARSax3 handler.
149 # URI.Munge now munges URIs inside the same host that go from https
150 to http. Reported by Neike Taika-Tessaro.
151 # Core.EscapeNonASCIICharacters now always transforms entities to
152 entities, even if target encoding is UTF-8.
153 # Tighten up selector validation in ExtractStyleBlocks.
154 Non-syntactically valid selectors are now rejected, along with
155 some of the more obscure ones such as attribute selectors, the
156 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
157 ID and class selectors now work properly with the relevant
158 configuration attributes. Also, mute errors when parsing CSS
159 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
160 ! Added support for 'scope' attribute on tables.
161 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
162 ! Properly handle sub-lists directly nested inside of lists in
163 a standards compliant way, by moving them into the preceding <li>
164 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
165 limited allowed comments in untrusted situations.
166 ! Implement iframes, and allow them to be used in untrusted mode with
167 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
168 <brad.froehle@gmail.com> for submitting an initial version of the patch.
169 ! The Forms module now works properly for transitional doctypes.
170 ! Added support for internationalized domain names. You need the PEAR
171 Net_IDNA2 module to be in your path; if it is installed, ensure the
172 class can be loaded and then set %Core.EnableIDNA to true.
173 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
174 <yramirez-htmlpurifier@adicio.com> for reporting.
175 - Explicitly initialize anonModule variable to null.
176 - Do not duplicate nofollow if already present. Thanks 178
178 - Do not add nofollow if hostname matches our current host. Thanks 178
179 for reporting, and Neike Taika-Tessaro for helping diagnose.
180 - Do not unset parser variable; this fixes intermittent serialization
181 problems. Thanks Neike Taika-Tessaro for reporting, bill
182 <10010tiger@gmail.com> for diagnosing.
183 - Fix iconv truncation bug, where non-UTF-8 target encodings see
184 output truncated after around 8000 characters. Thanks Jörg Ludwig
185 <joerg.ludwig@iserv.eu> for reporting.
186 - Fix broken table content model for XHTML1.1 (and also earlier
187 versions, although the W3C validator doesn't catch those violations).
188 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
190 4.3.0, released 2011-03-27
191 # Fixed broken caching of customized raw definitions, but requires an
192 API change. The old API still works but will emit a warning,
193 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
194 for how to upgrade your code.
195 # Protect against Internet Explorer innerHTML behavior by specially
196 treating attributes with backticks but no angled brackets, quotes or
197 spaces. This constitutes a slight semantic change, which can be
198 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
200 # Protect against cssText/innerHTML by restricting allowed characters
201 used in fonts further than mandated by the specification and encoding
202 some extra special characters in URLs. Reported by Neike
203 Taika-Tessaro and Mario Heiderich.
204 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
205 ! More types of SPL autoloaders allowed on later versions of PHP.
206 ! Implementations for position, top, left, right, bottom, z-index
207 when %CSS.Trusted is on.
208 ! Add %Cache.SerializerPermissions option for custom serializer
209 directory/file permissions
210 ! Fix longstanding bug in Flash support for non-IE browsers, and
211 allow more wmode attributes.
212 ! Add %CSS.AllowedFonts to restrict permissible font names.
213 - Switch to an iterative traversal of the DOM, which prevents us
214 from running out of stack space for deeply nested documents.
215 Thanks Maxim Krizhanovsky for contributing a patch.
216 - Make removal of conditional IE comments ungreedy; thanks Bernd
218 - Escape CDATA before removing Internet Explorer comments.
219 - Fix removal of id attributes under certain conditions by ensuring
220 armor attributes are preserved when recreating tags.
221 - Check if schema.ser was corrupted.
222 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
223 This safety check is only done for HTMLPurifier.auto.php; if you
224 are using standalone or the specialized includes files, you're
225 expected to know what you're doing.
226 - Stop repeatedly writing the cache file after I'm done customizing a
227 raw definition. Reported by ajh.
228 - Switch to using require_once in the Bootstrap to work around bad
229 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
230 - Fix URI handling when hostname is missing but scheme is present.
231 Reported by Neike Taika-Tessaro.
232 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
234 - Fix harmless notice from indexing into empty string. Thanks Matthijs
235 Kooijman <matthijs@stdin.nl> for reporting.
236 - Don't autoclose no parent elements are able to support the element
237 that triggered the autoclose. In particular fixes strange behavior
238 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
239 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
241 4.2.0, released 2010-09-15
242 ! Added %Core.RemoveProcessingInstructions, which lets you remove
243 <? ... ?> statements.
244 ! Added %URI.DisableResources functionality; the directive originally
245 did nothing. Thanks David Rothstein for reporting.
246 ! Add documentation about configuration directive types.
247 ! Add %CSS.ForbiddenProperties configuration directive.
248 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
249 to utilize full-screen mode.
250 ! Add optional support for the <code>file</code> URI scheme, enable
251 by explicitly setting %URI.AllowedSchemes.
252 ! Add %Core.NormalizeNewlines options to allow turning off newline
254 - Fix improper handling of Internet Explorer conditional comments
255 by parser. Thanks zmonteca for reporting.
256 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
257 Thanks sidepodcast for the fix.
258 - Warn if an element is allowed, but an attribute it requires is
261 4.1.1, released 2010-05-31
262 - Fix undefined index warnings in maintenance scripts.
263 - Fix bug in DirectLex for parsing elements with a single attribute
265 - Rewrite CSS output logic for font-family and url(). Thanks Mario
266 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
267 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
268 - Emit an error for CollectErrors if a body is extracted
269 - Fix bug where in background-position for center keyword handling.
270 - Fix infinite loop when a wrapper element is inserted in a context
271 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
272 - Remove +x bit and shebang from index.php; only supported mode is to
273 explicitly call it with php.
274 - Make test script less chatty when log_errors is on.
276 4.1.0, released 2010-04-26
277 ! Support proprietary height attribute on table element
278 ! Support YouTube slideshows that contain /cp/ in their URL.
279 ! Support for data: URI scheme; not enabled by default, add it using
281 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
282 ! Support for Internet Explorer compatibility with %HTML.SafeObject
283 using %Output.FlashCompat.
284 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
285 - Always quote the insides of url(...) in CSS.
287 4.0.0, released 2009-07-07
288 # APIs for ConfigSchema subsystem have substantially changed. See
289 docs/dev-config-bcbreaks.txt for details; in essence, anything that
290 had both namespace and directive now have a single unified key.
291 # Some configuration directives were renamed, specifically:
292 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
293 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
294 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
295 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
296 As usual, the old directive names will still work, but will throw E_NOTICE
298 # The allowed values for class have been relaxed to allow all of CDATA for
299 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
300 %Attr.ClassUseCDATA to false.
301 # Instead of appending the content model to an old content model, a blank
302 element will replace the old content model. You can use #SUPER to get
303 the old content model.
304 ! More robust support for name="" and id=""
305 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
306 configuration, and have changes to that configuration be propagated
307 to all of its children.
308 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
309 the name attribute when set. Use with care. Thanks Ian Cook for
311 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
312 tags that contain non-breaking spaces as well other whitespace. You
313 can also modify which tags should have maintained with
314 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
315 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
316 classes users can use to a specified finite set of classes, and
317 %Attr.ForbiddenClasses, which is the logical inverse.
318 ! You can now maintain your own configuration schema directories by
319 creating a config-schema.php file or passing an extra argument. Check
320 docs/dev-config-schema.html for more details.
321 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
322 your configuration in a compact serial file, which you can unserialize
323 and use directly without having to go through the overhead of setup.
324 - Fix bug where URIDefinition would not get cleared if it's directives got
326 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
327 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
328 - Make %URI.Munge not apply to links that have the same host as your host.
329 - Prevent stray </body> tag from truncating output, if a second </body>
331 . Created script maintenance/rename-config.php for renaming a configuration
332 directive while maintaining its alias. This script does not change source code.
333 . Implement namespace locking for definition construction, to prevent
334 bugs where a directive is used for definition construction but is not
335 used to construct the cache hash.
337 3.3.0, released 2009-02-16
338 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
339 ! Implement generic property list classess
340 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
341 does not do the "right thing" with characters not supported in the output
343 - Spellcheck UTF-8: The Secret To Character Encoding
344 - Fix improper removal of the contents of elements with only whitespace. Thanks
345 Eric Wald for reporting.
346 - Fix broken test suite in versions of PHP without spl_autoload_register()
347 - Fix degenerate case with YouTube filter involving double hyphens.
348 Thanks Pierre Attar for reporting.
349 - Fix YouTube rendering problem on certain versions of Firefox.
350 - Fix CSSDefinition Printer problems with decorators
351 - Add text parameter to unit tests, forces text output
352 . Add verbose mode to command line test runner, use (--verbose)
353 . Turn on unit tests for UnitConverter
354 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
355 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
357 . Removed trailing whitespace from all text files, see
358 remote-trailing-whitespace.php maintenance script.
359 . Convert configuration to use property list backend.
361 3.2.0, released 2008-10-31
362 # Using %Core.CollectErrors forces line number/column tracking on, whereas
363 previously you could theoretically turn it off.
364 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
365 use handleEnd() instead.
366 ! %Output.AttrSort for when you need your attributes in alphabetical order to
367 deal with a bug in FCKEditor. Requested by frank farmer.
368 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
369 ! Proper support for name attribute. It is now allowed and equivalent to the id
370 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
371 is heavy (for all doctypes).
372 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
373 use on hand-written HTML.
374 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
375 the strategy to be used, standalone, on untrusted input.
376 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
377 processing of left angled brackets in smileys and other whatnot.
378 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
379 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
380 the --only-phpt parameter, although for backwards-compatibility the flag
382 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
383 Users who are not performing inbound filtering, this may seem a little
384 useless, but as a bonus, the test suite and handling of edge cases is also
386 ! Experimental implementation of forms for %HTML.Trusted
387 ! Track column numbers when maintain line numbers is on
388 ! Proprietary 'background' attribute on table-related elements converted into
389 corresponding CSS. Thanks Fusemail for sponsoring this feature!
390 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
392 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
393 time of operation varies slightly from notifyEnd() as *all* end tokens are
394 processed by the injector before they are subject to the well-formedness rules.
395 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
396 basename of image when not present.
397 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
398 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
399 the other involving an undefined $is_folder error.
400 - Throw error when %Core.Encoding is set to a spurious value. Previously,
401 this errored silently and returned false.
402 - Redirected stderr to stdout for flush error output.
403 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
405 - Do not re-munge URL if the output URL has the same host as the input URL.
407 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
408 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
409 - Fix bug with inline elements in blockquotes conflicting with strict doctype
410 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
411 - Fix bug where dots and double-dots in absolute URLs without hostname were
412 not collapsed by URIFilter_MakeAbsolute.
413 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
414 by reordering their addition.
415 - Will now throw exception on many error conditions during lexer creation; also
416 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
418 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
419 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
420 Reported by David Morton.
421 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
422 for more interesting filter-backtracking
423 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
424 index to reprocess tokens.
425 . StringHashParser now allows for multiline sections with "empty" content;
426 previously the section would remain undefined.
427 . Added --quick option to multitest.php, which tests only the most recent
428 release for each series.
429 . Added --distro option to multitest.php, which accepts either 'normal' or
430 'standalone'. This supercedes --exclude-normal and --exclude-standalone
432 3.1.1, released 2008-06-19
433 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
434 In order to enable this again, please set %URI.MungeResources to true.
435 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
436 and height/width HTML with %HTML.MaxImgLength.
437 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
438 for sponsoring this feature. Check out the corresponding documentation
439 for details. (Att Nightly testers: The API for this feature changed before
440 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
441 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
442 ! Implemented post URI filtering. Set member variable $post to true to set
444 ! Allow modules to define injectors via $info_injector. Injectors are
445 automatically disabled if injector's needed elements are not found.
446 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
447 Thanks Chris for sponsoring. If you've been using ad hoc code from the
448 forums, PLEASE use this instead.
449 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
450 embedded, tag name, attribute name, CSS property name). See %URI.Munge
451 for more details. Requested by Jochem Blok.
452 - Disable percent height/width attributes for img.
453 - AttrValidator operations are now atomic; updates to attributes are not
454 manifest in token until end of operations. This prevents naughty internal
455 code from directly modifying CurrentToken when they're not supposed to.
456 This semantics change was requested by frank farmer.
457 - Percent encoding checks enabled for URI query and fragment
458 - Fix stray backslashes in font-family; CSS Unicode character escapes are
459 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
461 - Improve parseCDATA algorithm to take into account newline normalization
462 - Account for browser confusion between Yen character and backslash in
463 Shift_JIS encoding. This fix generalizes to any other encoding which is not
464 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
465 - Fix missing configuration parameter in Generator calls. Thanks vs for the
467 - Improved adherence to Unicode by checking for non-character codepoints.
468 Thanks Geoffrey Sneddon for reporting. This may result in degraded
469 performance for extremely large inputs.
470 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
472 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
473 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
475 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
476 to __construct($min, $max). __construct(true) is equivalent to
478 . Added HTMLPurifier_AttrDef_Switch class
479 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
480 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
481 get this called with the configuration object. All modules now
482 use this rather than __construct(), although legacy code using constructors
483 will still work--the new format, however, lets modules access the
484 configuration object for HTML namespace dependant tweaks.
485 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
486 . ConfigSchema data-structure heavily optimized; on average it uses a third
487 the memory it did previously. The interface has changed accordingly,
488 consult changes to HTMLPurifier_Config for details.
489 . Variable parsing types now are magic integers instead of strings
490 . Added benchmark for ConfigSchema
491 . HTMLPurifier_Generator requires $config and $context parameters. If you
492 don't know what they should be, use HTMLPurifier_Config::createDefault()
493 and new HTMLPurifier_Context().
494 . Printers now properly distinguish between output configuration, and
495 target configuration. This is not applicable to scripts using
496 the Printers for HTML Purifier related tasks.
497 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
498 fatal errors will ensue.
499 . URIFilter->prepare can return false in order to abort loading of the filter
500 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
501 an external resource.
502 . %URI.Munge functionality factored out into a post-filter class.
503 . Added CurrentCSSProperty context variable during CSS validation
505 3.1.0, released 2008-05-18
506 # Unnecessary references to objects (vestiges of PHP4) removed from method
507 signatures. The following methods do not need references when assigning from
508 them and will result in E_STRICT errors if you try:
509 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
510 + HTMLPurifier_ConfigSchema::instance()
511 + HTMLPurifier_DefinitionCacheFactory::instance()
512 + HTMLPurifier_DefinitionCacheFactory->create()
513 + HTMLPurifier_DoctypeRegistry->register()
514 + HTMLPurifier_DoctypeRegistry->get()
515 + HTMLPurifier_HTMLModule->addElement()
516 + HTMLPurifier_HTMLModule->addBlankElement()
517 + HTMLPurifier_LanguageFactory::instance()
518 # Printer_ConfigForm's get*() functions were static-ified
519 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
520 form of tag@attr, NOT tag.attr (which will throw an error and won't do
521 anything). This is for forwards compatibility with XML; you'd do best
522 to migrate an %HTML.AllowedAttributes directives to this syntax too.
523 ! Allow index to be false for config from form creation
524 ! Added HTMLPurifier::VERSION constant
525 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
526 and allows for version numbers like "3.1.0-dev".
527 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
528 ! HTML Purifier's URI handling is a lot more robust, with much stricter
529 validation checks and better percent encoding handling. Thanks Gareth Heyes
530 for indicating security vulnerabilities from lax percent encoding.
531 ! Bootstrap autoloader deals more robustly with classes that don't exist,
532 preventing class_exists($class, true) from barfing.
533 - InterchangeBuilder now alphabetizes its lists
534 - Validation error in configdoc output fixed
535 - Iconv and other encoding errors muted even with custom error handlers that
536 do not honor error_reporting
537 - Add protection against imagecrash attack with CSS height/width
538 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
539 - Fixed and revamped broken ConfigForm smoketest
540 - Bug with bool/null fields in Printer_ConfigForm fixed
541 - Bug with global forbidden attributes fixed
542 - Improved error messages for allowed and forbidden HTML elements and attributes
543 - Missing (or null) in configdoc documentation restored
544 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
545 of DOM), HTML Purifier punts to DirectLex
546 - Fatal error with unserialization of ScriptRequired
547 - Created directories are now chmod'ed properly
548 - Fixed bug with fallback languages in LanguageFactory
549 - Standalone testing setup properly with autoload
550 . Out-of-date documentation revised
551 . UTF-8 encoding check optimization as suggested by Diego
552 . HTMLPurifier_Error removed in favor of exceptions
553 . More copy() function removed; should use clone instead
554 . More extensive unit tests for HTMLDefinition
555 . assertPurification moved to central harness
556 . HTMLPurifier_Generator accepts $config and $context parameters during
557 instantiation, not runtime
558 . Double-quotes outside of attribute values are now unescaped
560 3.1.0rc1, released 2008-04-22
561 # Autoload support added. Internal require_once's removed in favor of an
562 explicit require list or autoloading. To use HTML Purifier,
563 you must now either use HTMLPurifier.auto.php
564 or HTMLPurifier.includes.php; setting the include path and including
565 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
566 as well to register our autoload handler (or modify your autoload function
567 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
568 HTMLPurifier.safe-includes.php for a less performance friendly but more
569 user-friendly library load.
570 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
571 information is stored in the ConfigSchema directory, and the
572 maintenance/generate-schema-cache.php generates the schema.ser file, which
573 is now instantiated. Support for userland schema changes coming soon!
574 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
575 alias; to get rid of these errors just modify your configuration to use
576 the new directive name.
577 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
578 enabled using %Filter.$filter_name or by setting your own filters using
580 # Directive-level safety properties superceded in favor of module-level
581 safety. Internal method HTMLModule->addElement() has changed, although
582 the externally visible HTMLDefinition->addElement has *not* changed.
583 ! Extra utility classes for testing and non-library operations can
584 be found in extras/. Specifically, these are FSTools and ConfigDoc.
585 You may find a use for these in your own project, but right now they
586 are highly experimental and volatile.
587 ! Integration with PHPT allows for automated smoketests
588 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
589 by Chris. You can enable them with %HTML.Proprietary if your client
591 ! Support for !important CSS cascade modifier. By default, this will be stripped
592 from CSS, but you can enable it using %CSS.AllowImportant
593 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
595 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
596 Developer error (not enduser error) can cause these to be triggered.
597 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
598 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
599 mucking around with HTMLPurifier_CSSDefinition
600 ! ConfigDoc output has been enhanced with version and deprecation info.
601 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
602 - Autoclose now operates iteratively, i.e. <span><span><div> now has
603 both span tags closed.
604 - Various HTMLPurifier_Config convenience functions now accept another parameter
605 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
607 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
608 - Fix bug in ExtractStyleBlocks with comments in style tags
609 - Fix bug in comment parsing for DirectLex
610 - Flush output now displayed when in command line mode for unit tester
611 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
612 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
613 on the same element without emitting errors.
614 - Fixed fatal error in PH5P lexer with invalid tag names
615 . Plugins now get their own changelogs according to project conventions.
616 . Convert tokens to use instanceof, reducing memory footprint and
617 improving comparison speed.
618 . Dry runs now supported in SimpleTest; testing facilities improved
619 . Bootstrap class added for handling autoloading functionality
620 . Implemented recursive glob at FSTools->globr
621 . ConfigSchema now has instance methods for all corresponding define*
623 . A couple of new historical maintenance scripts were added.
624 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
625 . tests/index.php can now be run from any directory.
626 . HTMLPurifier_Token subclasses split into seperate files
627 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
628 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
629 . New --php=php flag added, allows PHP executable to be specified (command
631 . htmlpurifier_add_test() preferred method to translate test files in to
632 classes, because it handles PHPT files too.
633 . Debugger class is deprecated and will be removed soon.
634 . Command line argument parsing for testing scripts revamped, now --opt value
636 . Smoketests now cleanup after magic quotes
637 . Generator now can output comments (however, comments are still stripped
638 from HTML Purifier output)
639 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
640 HTMLPurifier_VarParser->parse()
641 . Integers auto-cast into float type by VarParser.
642 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
643 during cache generation
644 . Reordered script calls in maintenance/flush.php
645 . Command line scripts now honor exit codes
646 . When --flush fails in unit testers, abort tests and print message
647 . Improved documentation in docs/dev-flush.html about the maintenance scripts
648 . copy() methods removed in favor of clone keyword
650 3.0.0, released 2008-01-06
651 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
652 until PHP 4 is completely deprecated, but no new features will be added
654 + Visibility declarations added
655 + Constructor methods renamed to __construct()
656 + PHP4 reference cruft removed (in progress)
657 ! CSS properties are now case-insensitive
658 ! DefinitionCacheFactory now can register new implementations
659 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
660 documents and cleaning their contents up. Requires the CSSTidy library
661 <http://csstidy.sourceforge.net/>. You can access the blocks with the
662 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
663 The output CSS can also be "scoped" for a specific element, use:
664 %Filter.ExtractStyleBlocksScope
665 ! Experimental support for some proprietary CSS attributes allowed:
666 opacity (and all of the browser-specific equivalents) and scrollbar colors.
667 Enable by setting %CSS.Proprietary to true.
668 - Colors missing # but in hex form will be corrected
669 - CSS Number algorithm improved
670 - Unit testing and multi-testing now on steroids: command lines,
671 XML output, and other goodies now added.
672 . Unit tests for Injector improved
674 + HTMLPurifier_AttrDef_CSS_AlphaValue
675 + HTMLPurifier_AttrDef_CSS_Filter
676 . Multitest now has a file docblock
678 2.1.3, released 2007-11-05
679 ! tests/multitest.php allows you to test multiple versions by running
680 tests/index.php through multiple interpreters using `phpv` shell
681 script (you must provide this script!)
682 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
684 - Injector algorithm further refined: off-by-one error regarding skip
685 counts for dormant injectors fixed
686 - Corrective blockquote definition now enabled for HTML 4.01 Strict
687 - Fatal error when <img> tag (or any other element with required attributes)
688 has 'id' attribute fixed, thanks NykO18 for reporting
689 - Fix warning emitted when a non-supported URI scheme is passed to the
690 MakeAbsolute URIFilter, thanks NykO18 (again)
691 - Further refine AutoParagraph injector. Behavior inside of elements
692 allowing paragraph tags clarified: only inline content delimeted by
693 double newlines (not block elements) are paragraphed.
694 - Buggy treatment of end tags of elements that have required attributes
695 fixed (does not manifest on default tag-set)
696 - Spurious internal content reorganization error suppressed
697 - HTMLDefinition->addElement now returns a reference to the created
698 element object, as implied by the documentation
699 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
700 - Fix a theoretical class of infinite loops from DirectLex reported
702 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
704 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
705 HTMLDefinition errors, this may indicate problems with error-collecting
707 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
708 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
709 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
710 to better communicate its purpose
711 . Error unit tests can now specify the expectation of no errors. Future
712 iterations of the harness will be extremely strict about what errors
714 . Extend Injector hooks to allow for more powerful injector routines
715 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
717 . Doxygen configuration file updated, with minor improvements
718 . Test runner now checks for similarly named files in conf/ directory too.
719 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
721 . Maintenance script for generating PH5P patch added, original PH5P source
722 file also added under version control
723 . Full unit test runner script title made more descriptive with PHP version
724 . Updated INSTALL file to state that 4.3.7 is the earliest version we
727 2.1.2, released 2007-09-03
728 ! Implemented Object module for trusted users
729 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
731 require_once 'HTMLPurifier/Lexer/PH5P.php';
732 $config->set('Core', 'LexerImpl', 'PH5P');
733 Note that this Lexer introduces some classes not in the HTMLPurifier
734 namespace. Also, this is PHP5 only.
735 ! CSS property border-spacing implemented
736 - Fix non-visible parsing error in DirectLex with empty tags that have
737 slashes inside attribute values.
738 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
739 accepted as valid CSS. Usually non-visible, because this styling is the
740 default for tables in most browsers. Thanks Brett Zamir for pointing
742 - Fix validation errors in configuration form
743 - Hammer out a bunch of edge-case bugs in the standalone distribution
744 - Inclusion reflection removed from URISchemeRegistry; you must manually
745 include any new schema files you wish to use
746 - Numerous typo fixes in documentation thanks to Brett Zamir
747 . Unit test refactoring for one logical test per test function
748 . Config and context parameters in ComplexHarness deprecated: instead, edit
749 the $config and $context member variables
750 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
751 really make a difference, but is good for completeness sake
752 . merge-library.php script refactored for greater code reusability and
755 2.1.1, released 2007-08-04
756 - Fix show-stopper bug in %URI.MakeAbsolute functionality
757 - Fix PHP4 syntax error in standalone version
758 . Add prefix directory to include path for standalone, this prevents
759 other installations from clobbering the standalone's URI schemes
760 . Single test methods can be invoked by prefixing with __only
762 2.1.0, released 2007-08-02
763 # flush-htmldefinition-cache.php superseded in favor of a generic
764 flush-definition-cache.php script, you can clear a specific cache
765 by passing its name as a parameter to the script
766 ! Phorum mod implemented for HTML Purifier
767 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
768 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
769 for PHP4 (DirectLex).
770 ! Standalone file now available, which greatly reduces the amount of
771 includes (although there are still a few files that reside in the
773 ! Relative URIs can now be transformed into their absolute equivalents
774 using %URI.Base and %URI.MakeAbsolute
775 ! Ruby implemented for XHTML 1.1
776 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
778 ! UTF-8 font names now supported in CSS
779 - AutoFormatters emit friendly error messages if tags or attributes they
781 - ConfigForm's compactification of directive names is now configurable
782 - AutoParagraph autoformatter algorithm refined after field-testing
783 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
785 - Contents of <style> tags removed by default when tags are removed
786 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
787 for output cache invalidation
788 . ConfigForm printer now can retrieve CSS and JS files as strings, in
789 case HTML Purifier's directory is not publically accessible
790 . Introduce new text/itext configuration directive values: these represent
791 longer strings that would be more appropriately edited with a textarea
792 . Allow newlines to act as separators for lists, hashes, lookups and
794 . ConfigForm generates textareas instead of text inputs for lists, hashes,
795 lookups, text and itext fields
796 . Hidden element content removal genericized: %Core.HiddenElements can
797 be used to customize this behavior, by default <script> and <style> are
799 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
800 . Custom ChildDef added to default include list
801 . URIScheme reflection improved: will not attempt to include file if class
802 already exists. May clobber autoload, so I need to keep an eye on it
803 . ConfigSchema heavily optimized, will only collect information and validate
804 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
805 . AttrDef_URI unit tests and implementation refactored
806 . benchmarks/ directory now protected from public view with .htaccess file;
807 run the tests via command line
808 . URI scheme is munged off if there is no authority and the scheme is the
810 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
811 . Interface for URIScheme changed
812 . Generic URI object to hold components of URI added, most systems involved
813 in URI validation have been migrated to use it
814 . Custom filtering for URIs factored out to URIDefinition interface for
815 maximum extensibility
817 2.0.1, released 2007-06-27
818 ! Tag auto-closing now based on a ChildDef heuristic rather than a
819 manually set auto_close array; some behavior may change
820 ! Experimental AutoFormat functionality added: auto-paragraph and
821 linkify your HTML input by setting %AutoFormat.AutoParagraph and
822 %AutoFormat.Linkify to true
823 ! Newlines normalized internally, and then converted back to the
824 value of PHP_EOL. If this is not desired, set your newline format
825 using %Output.Newline.
826 ! Beta error collection, messages are implemented for the most generic
827 cases involving Lexing or Strategies
828 - Clean up special case code for <script> tags
829 - Reorder includes for DefinitionCache decorators, fixes a possible
831 - Fixed bug where manually modified definitions were not saved via cache
832 (mostly harmless, except for the fact that it would be a little slower)
833 - Configuration objects with different serials do not clobber each
834 others when revision numbers are unequal
835 - Improve Serializer DefinitionCache directory permissions checks
836 - DefinitionCache no longer throws errors when it encounters old
837 serial files that do not conform to the current style
838 - Stray xmlns attributes removed from configuration documentation
839 - configForm.php smoketest no longer has XSS vulnerability due to
840 unescaped print_r output
841 - Printer adheres to configuration's directives on output format
842 - Fix improperly named form field in ConfigForm printer
843 . Rewire some test-cases to swallow errors rather than expect them
844 . HTMLDefinition printer updated with some of the new attributes
845 . DefinitionCache keys reordered to reflect precedence: version number,
846 hash, then revision number
847 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
848 . Interlinking in configuration documentation added using
849 Injector_PurifierLinkify
850 . Directives now keep track of aliases to themselves
851 . Error collector now requires a severity to be passed, use PHP's internal
852 error constants for this
853 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
854 much easier selective embedding of configuration values
855 . Doctype objects now accept public and system DTD identifiers
856 . %HTML.Doctype is now constrained by specific values, to specify a custom
857 doctype use new %HTML.CustomDoctype
858 . ConfigForm truncates long directives to keep the form small, and does
859 not re-output namespaces
861 2.0.0, released 2007-06-20
862 # Completely refactored HTMLModuleManager, decentralizing safety
864 # Transform modules changed to Tidy modules, which offer more flexibility
865 and better modularization
866 # Configuration object now finalizes itself when a read operation is
867 performed on it, ensuring that its internal state stays consistent.
868 To revert this behavior, you can set the $autoFinalize member variable
869 off, but it's not recommended.
870 # New compact syntax for AttrDef objects that can be used to instantiate
871 new objects via make()
872 # Definitions (esp. HTMLDefinition) are now cached for a significant
873 performance boost. You can disable caching by setting %Core.DefinitionCache
874 to null. You CANNOT edit raw definitions without setting the corresponding
875 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
876 # Contents between <script> tags are now completely removed if <script>
878 # Prototype-declarations for Lexer removed in favor of configuration
879 determination of Lexer implementations.
880 ! HTML Purifier now works in PHP 4.3.2.
881 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
883 ! Configuration directives that accept hashes now allow new string
884 format: key1:value1,key2:value2
885 ! ConfigDoc now factored into OOP design
886 ! All deprecated elements now natively supported
887 ! Implement TinyMCE styled whitelist specification format in
889 ! Config object gives more friendly error messages when things go wrong
890 ! Advanced API implemented: easy functions for creating elements (addElement)
891 and attributes (addAttribute) on HTMLDefinition
892 ! Add native support for required attributes
893 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
894 - DOMLex will not emit errors when a custom error handler that does not
895 honor error_reporting is used
896 - StrictBlockquote child definition refrains from wrapping whitespace
898 - Bug resulting from tag transforms to non-allowed elements fixed
899 - ChildDef_Custom's regex generation has been improved, removing several
901 . Unit test for ElementDef created, ElementDef behavior modified to
903 . Added convenience functions for HTMLModule constructors
904 . AttrTypes now has accessor functions that should be used instead
905 of directly manipulating info
906 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
907 . Add extra protection in AttrDef_URI against phantom Schemes
908 . Doctype object added to HTMLDefinition which describes certain aspects
909 of the operational document type
910 . Lexer is now pre-emptively included, with a conditional include for the
912 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
913 . DirectLex can now track line-numbers
914 . Preliminary error collector is in place, although no code actually reports
916 . Factor out most of ValidateAttributes to new AttrValidator class
918 1.6.1, released 2007-05-05
919 ! Support for more deprecated attributes via transformations:
920 + hspace and vspace in img
921 + size and noshade in hr
924 + align in caption, table, img and hr
925 + type in ul, ol and li
926 ! DirectLex now preserves text in which a < bracket is followed by
927 a non-alphanumeric character. This means that certain emoticons
929 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
930 images will hang around with an empty src
931 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
933 ! CSS property white-space now allows nowrap (supported in all modern
934 browsers) but not others (which have spotty browser implementations)
935 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
936 lang is now moved over to xml:lang.
937 ! Attribute transformation smoketest available at smoketests/attrTransform.php
938 ! Transformation of font's size attribute now handles super-large numbers
939 - Possibly fatal bug with __autoload() fixed in module manager
940 - Invert HTMLModuleManager->addModule() processing order to check
941 prefixes first and then the literal module
942 - Empty strings get converted to empty arrays instead of arrays with
943 an empty string in them.
944 - Merging in attribute lists now works.
945 . Demo script removed: it has been added to the website's repository
946 . Basic.php script modified to work out of the box
947 . Refactor AttrTransform classes to reduce duplication
948 . AttrTransform_TextAlign axed in favor of a more general
949 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
950 see how the new equivalent is implemented
951 . Unit tests now use exclusively assertIdentical
953 1.6.0, released 2007-04-01
954 ! Support for most common deprecated attributes via transformations:
955 + bgcolor in td, th, tr and table
958 + width in td, th and hr
960 ! Support for CSS attribute 'height' added
961 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
962 and %Attr.AllowedRev to activate
963 - You can define ID blacklists using regular expressions via
964 %Attr.IDBlacklistRegexp
965 - Error messages are emitted when you attempt to "allow" elements or
966 attributes that HTML Purifier does not support
967 - Fix segfault in unit test. The problem is not very reproduceable and
968 I don't know what causes it, but a six line patch fixed it.
970 1.5.0, released 2007-03-23
971 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
972 doesn't actually do anything yet, but keep your eyes peeled.
973 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
974 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
975 I am loathe to release beta quality APIs, but this is exactly that;
976 don't use the internal interfaces if you're not willing to do migration
978 - Allow 'x' subtag in language codes
979 - Fixed buggy chameleon-support for ins and del
980 . Added support for IDREF attributes (i.e. for)
981 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
982 . Removed context variable ParentType, replaced with IsInline, which
983 is false when you're not inline and an integer of the parent that
984 caused you to become inline when you are (so possibly zero)
985 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
986 and HTMLDefinition->content_sets
987 . StrictBlockquote now reports what elements its supposed to allow,
988 rather than what it does allow
989 . Removed HTMLDefinition->info_flow_elements in favor of
990 HTMLDefinition->content_sets['Flow']
991 . Removed redundant "exclusionary" definitions from DTD roster
992 . StrictBlockquote now requires a construction parameter as if it
993 were an Required ChildDef, this is the "real" set of allowed elements
994 . AttrDef partitioned into HTML, CSS and URI segments
995 . Modify Youtube filter regexp to be multiline
996 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
997 some edge cases where a DOMDocument class exists in a PHP4 environment
998 due to DOM XML extension.
1000 1.4.1, released 2007-01-21
1001 ! docs/enduser-youtube.html updated according to new functionality
1002 - YouTube IDs can have underscores and dashes
1004 1.4.0, released 2007-01-21
1005 ! Implemented list-style-image, URIs now allowed in list-style
1006 ! Implemented background-image, background-repeat, background-attachment
1007 and background-position CSS properties. Shorthand property background
1008 supports all of these properties.
1009 ! Configuration documentation looks nicer
1010 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
1011 characters while %Core.Encoding is set to a non-UTF-8 encoding.
1012 ! Support for configuration directive aliases added
1013 ! Config object can now be instantiated from ini files
1014 ! YouTube preservation code added to the core, with two lines of code
1015 you can add it as a filter to your code. See smoketests/preserveYouTube.php
1017 ! Moved SLOW to docs/enduser-slow.html and added code examples
1018 - Replaced version check with functionality check for DOM (thanks Stephen
1020 . Added smoketest 'all.php', which loads all other smoketests via frames
1021 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
1022 . Added convenient single test selector form on test runner
1024 1.3.2, released 2006-12-25
1025 ! HTMLPurifier object now accepts configuration arrays, no need to manually
1026 instantiate a configuration object
1027 ! Context object now accessible to outside
1028 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
1029 also corresponding smoketest preserveYouTube.php.
1030 ! Added purifyArray(), which takes a list of HTML and purifies it all
1031 ! Added static member variable $version to HTML Purifier with PHP-compatible
1032 version number string.
1033 - Fixed fatal error thrown by upper-cased language attributes
1034 - printDefinition.php: added labels, added better clarification
1035 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
1036 a HTMLPurifier_Config object.
1038 1.3.1, released 2006-12-06
1039 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
1040 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
1041 (thanks to .mario for reporting this)
1042 . Standardized all attribute handling variables to attr, made it plural
1044 1.3.0, released 2006-11-26
1045 # Invalid images are now removed, rather than replaced with a dud
1046 <img src="" alt="Invalid image" />. Previous behavior can be restored
1047 with new directive %Core.RemoveInvalidImg set to false.
1048 ! (X)HTML Strict now supported
1049 + Transparently handles inline elements in block context (blockquote)
1050 ! Added GET method to demo for easier validation, added 50kb max input size
1051 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
1052 ! New directive %HTML.Parent, allows you to only allow inline content
1053 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1054 users narrow the set of allowed tags
1055 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1056 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1057 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1058 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1059 service to avoid PageRank leaks or warn users that they are exiting your site.
1060 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1061 the configuration settings and see how the internal rules are affected.
1062 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1063 xssAttacks.php smoketest updated accordingly.
1064 - Added missing type to ChildDef_Chameleon
1065 - Remove Tidy option from demo if there is not Tidy available
1066 . ChildDef_Required guards against empty tags
1067 . Lookup table HTMLDefinition->info_flow_elements added
1068 . Added peace-of-mind variable initialization to Strategy_FixNesting
1069 . Added HTMLPurifier->info_parent_def, parent child processing made special
1070 . Added internal documents briefly summarizing future progression of HTML
1071 . HTMLPurifier_Config->getBatch($namespace) added
1072 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1073 . Refactored ChildDef classes into their own files
1075 1.2.0, released 2006-11-19
1076 # ID attributes now disabled by default. New directives:
1077 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1078 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1079 so that they don't collide with your IDs
1080 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1081 instances of user content on the page
1082 + Profuse documentation on how to use these available in docs/enduser-id.txt
1083 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1084 ! Added percent encoding normalization
1085 ! XSS attacks smoketest given facelift
1086 ! Configuration documentation now has table of contents
1087 ! Added %URI.DisableExternal, which prevents links to external websites. You
1088 can also use %URI.Host to permit absolute linking to subdomains
1089 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1090 - Type variable in HTMLDefinition was not being set properly, fixed
1091 - Documentation updated
1092 + TODO added request Phalanger
1093 + TODO added request Native compression
1094 + TODO added request Remove redundant tags
1095 + TODO added possible plaintext formatter for HTML Purifier documentation
1096 + Updated ConfigDoc TODO
1097 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1098 and AttrDef/Host.php
1099 + Revamped documentation into HTML, along with misc updates
1100 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1101 to retrieve a non-existent variable
1102 . Switched to purify()-wide Context object registry
1103 . Refactored unit tests to minimize duplication
1104 . XSS attack sheet updated
1105 . configdoc.xml now has xml:space attached to default value nodes
1106 . Allow configuration directives to permit null values
1107 . Cleaned up test-cases to remove unnecessary swallowErrors()
1109 1.1.2, released 2006-09-30
1110 ! Add HTMLPurifier.auto.php stub file that configures include_path
1111 - Documentation updated
1112 + INSTALL document rewritten
1113 + TODO added semi-lossy conversion
1114 + API Doxygen docs' file exclusions updated
1115 + Added notes on HTML versus XML attribute whitespace handling
1116 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1117 + Noted that config object's definitions are cached versions
1118 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1119 - ftp:// URIs now have their typecodes checked
1120 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1121 . Line endings standardized throughout project (svn:eol-style standardized)
1122 . Refactored parseData() to general Lexer class
1123 . Tester named "HTML Purifier" not "HTMLPurifier"
1125 1.1.1, released 2006-09-24
1126 ! Configuration option to optionally Tidy up output for indentation to make up
1127 for dropped whitespace by DOMLex (pretty-printing for the entire application
1128 should be done by a page-wide Tidy)
1129 - Various documentation updates
1130 - Fixed parse error in configuration documentation script
1131 - Fixed fatal error in benchmark scripts, slightly augmented
1132 - As far as possible, whitespace is preserved in-between table children
1133 - Sample test-settings.php file included
1135 1.1.0, released 2006-09-16
1136 ! Directive documentation generation using XSLT
1137 ! XHTML can now be turned off, output becomes <br>
1138 - Made URI validator more forgiving: will ignore leading and trailing
1139 quotes, apostrophes and less than or greater than signs.
1140 - Enforce alphanumeric namespace and directive names for configuration.
1141 - Table child definition made more flexible, will fix up poorly ordered elements
1142 . Renamed ConfigDef to ConfigSchema
1144 1.0.1, released 2006-09-04
1145 - Fixed slight bug in DOMLex attribute parsing
1146 - Fixed rejection of case-insensitive configuration values when there is a
1147 set of allowed values. This manifested in %Core.Encoding.
1148 - Fixed rejection of inline style declarations that had lots of extra
1149 space in them. This manifested in TinyMCE.
1151 1.0.0, released 2006-09-01
1152 ! Shorthand CSS properties implemented: font, border, background, list-style
1153 ! Basic color keywords translated into hexadecimal values
1154 ! Table CSS properties implemented
1155 ! Support for charsets other than UTF-8 (defined by iconv)
1156 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1157 - Fixed broken numeric entity conversion
1158 - API documentation completed
1159 . (HTML|CSS)Definition de-singleton-ized
1161 1.0.0beta, released 2006-08-16
1162 ! First public release, most functionality implemented. Notable omissions are:
1163 + Shorthand CSS properties
1164 + Table CSS properties
1165 + Deprecated attribute transformations