1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 4.9.0, unknown release date
13 ! %URI.DefaultScheme can now be set to null, in which case
14 all relative paths are removed.
15 ! New CSS properties: min-width, max-width, min-height, max-height (#94)
16 ! Transparency (rgba) and hsl/hsla supported where color CSS is present.
17 Thanks @fxbt for contributing the patch. (#118)
18 - When idn_to_ascii is defined, we might accept malformed
19 hostnames. Apply validation to the result in such cases.
20 - Close directory when done in Serializer DefinitionCache (#100)
21 - Deleted some asserts to avoid linters from choking (#97)
22 - Rework Serializer cache behavior to avoid chmod'ing if possible (#32)
23 - Embedded semicolons in strings in CSS are now handled correctly!
24 - We accidentally dropped certain Unicode characters if there was
25 one or more invalid characters. This has been fixed, thanks
26 to mpyw <ryosuke_i_628@yahoo.co.jp>
27 - Fix for "Don't truncate upon encountering </div> when using DOMLex"
28 caused a regression with HTML 4.01 Strict parsing with libxml 2.9.1
29 (and maybe later versions, but known OK with libxml 2.9.4). The
30 fix is to go about handling truncation a bit more cleverly so that
31 we can wrap with divs (sidestepping the bug) but slurping out the
32 rest of the text in case it ran off the end. (#78)
33 - Fix PREG_BACKTRACK_LIMIT_ERROR in HTMLPurifier_Filter_ExtractStyle.
34 Thanks @breathbath for contributing the report and fix (#120)
35 # By default, when a link has a target attribute associated
36 with it, we now also add rel="noopener" in order to
37 prevent the new window from being able to overwrite
38 the original frame. To disable this protection,
39 set %HTML.TargetNoopener to FALSE.
41 4.8.0, released 2016-07-16
42 # By default, when a link has a target attribute associated
43 with it, we now also add rel="noreferrer" in order to
44 prevent the new window from being able to overwrite
45 the original frame. To disable this protection,
46 set %HTML.TargetNoreferrer to FALSE.
47 ! Full PHP 7 compatibility, the test suite is ALL GO.
48 ! %CSS.AllowDuplicates permits duplicate CSS properties.
49 ! Support for 'tel' URIs.
50 ! Partial support for 'border-radius' properties when %CSS.AllowProprietary is true.
51 The slash syntax, i.e., 'border-radius: 2em 1em 4em / 0.5em 3em' is not
53 ! %Attr.ID.HTML5 turns on HTML5-style ID handling.
54 - alt truncation could result in malformed UTF-8 sequence. Don't
55 truncate. Thanks Brandon Farber for reporting.
56 - Linkify regex is smarter, based off of Gruber's regex.
57 - IDNA supported natively on PHP 5.3 and later.
58 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
60 - Minor bounds error fix to squash a PHP 7 notice.
61 - Support non-/tmp temporary directories for data:// validation
62 - Give a better error message when a user attempts to allow
63 ul/ol without allowing li.
64 - On some versions of PHP, the Serializer DefinitionCache could
65 infinite loop when the directory exists but is not listable. (#49)
66 - Don't match for <body> inside comments with
67 %Core.ConvertDocumentToFragment. (#67)
68 - SafeObject is now less case sensitive. (#57)
69 - AutoFormat.RemoveEmpty.Predicate now correctly renders in
72 4.7.0, released 2015-08-04
73 # opacity is now considered a "tricky" CSS property rather than a
75 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
76 an element should be considered "empty" (maybe preserve if it
77 has attributes), and modify iframe support so that the iframe
78 is removed if it is missing a src attribute. Thanks meeva for
80 - Don't truncate upon encountering </div> when using DOMLex. Thanks
81 Myrto Christina for finally convincing me to fix this.
82 - Update YouTube filter for new code.
83 - Fix parsing of rgb() values with spaces in them for 'border'
85 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
88 4.6.0, released 2013-11-30
89 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
90 Please update any verification scripts you may have.
91 # URI parsing algorithm was made more strict, so only prefixes which
92 looks like schemes will actually be schemes. Thanks
93 Michael Gusev <mgusev@sugarcrm.com> for fixing.
94 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
96 ! New directive %Core.AllowHostnameUnderscore which allows underscores
98 - Eliminate quadratic behavior in DOMLex by using a proper queue.
99 Thanks Ole Laursen for noticing this.
100 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
101 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
102 Networks for sponsoring this work.
103 - Made Linkify URL parser a bit less permissive, so that non-breaking
104 spaces and commas are not included as part of URL. Thanks nAS for fixing.
105 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
106 David Hirtz for reporting.
107 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
110 4.5.0, released 2013-02-17
111 # Fix bug where stacked attribute transforms clobber each other;
112 this also means it's no longer possible to override attribute
113 transforms in later modules. No internal code was using this
114 but this may break some clients.
115 # We now use SHA-1 to identify cached definitions, instead of MD5.
116 ! Support display:inline-block
117 ! Support for more white-space CSS values.
118 ! Permit underscores in font families
119 ! Support for page-break-* CSS3 properties when proprietary properties
121 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
122 SGML excludes checking. If HTML Purifier is removing too much text
123 and you don't care about full standards compliance, try setting this to
125 - Use prepend for SPL autoloading on PHP 5.3 and later.
126 - Fix bug with nofollow transform when pre-existing rel exists.
127 - Fix bug where background:url() always gets lower-cased
128 (but not background-image:url())
129 - Fix bug with non lower-case color names in HTML
130 - Fix bug where data URI validation doesn't remove temporary files.
131 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
132 - Don't remove certain empty tags on RemoveEmpty.
134 4.4.0, released 2012-01-18
135 # Removed PEARSax3 handler.
136 # URI.Munge now munges URIs inside the same host that go from https
137 to http. Reported by Neike Taika-Tessaro.
138 # Core.EscapeNonASCIICharacters now always transforms entities to
139 entities, even if target encoding is UTF-8.
140 # Tighten up selector validation in ExtractStyleBlocks.
141 Non-syntactically valid selectors are now rejected, along with
142 some of the more obscure ones such as attribute selectors, the
143 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
144 ID and class selectors now work properly with the relevant
145 configuration attributes. Also, mute errors when parsing CSS
146 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
147 ! Added support for 'scope' attribute on tables.
148 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
149 ! Properly handle sub-lists directly nested inside of lists in
150 a standards compliant way, by moving them into the preceding <li>
151 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
152 limited allowed comments in untrusted situations.
153 ! Implement iframes, and allow them to be used in untrusted mode with
154 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
155 <brad.froehle@gmail.com> for submitting an initial version of the patch.
156 ! The Forms module now works properly for transitional doctypes.
157 ! Added support for internationalized domain names. You need the PEAR
158 Net_IDNA2 module to be in your path; if it is installed, ensure the
159 class can be loaded and then set %Core.EnableIDNA to true.
160 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
161 <yramirez-htmlpurifier@adicio.com> for reporting.
162 - Explicitly initialize anonModule variable to null.
163 - Do not duplicate nofollow if already present. Thanks 178
165 - Do not add nofollow if hostname matches our current host. Thanks 178
166 for reporting, and Neike Taika-Tessaro for helping diagnose.
167 - Do not unset parser variable; this fixes intermittent serialization
168 problems. Thanks Neike Taika-Tessaro for reporting, bill
169 <10010tiger@gmail.com> for diagnosing.
170 - Fix iconv truncation bug, where non-UTF-8 target encodings see
171 output truncated after around 8000 characters. Thanks Jörg Ludwig
172 <joerg.ludwig@iserv.eu> for reporting.
173 - Fix broken table content model for XHTML1.1 (and also earlier
174 versions, although the W3C validator doesn't catch those violations).
175 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
177 4.3.0, released 2011-03-27
178 # Fixed broken caching of customized raw definitions, but requires an
179 API change. The old API still works but will emit a warning,
180 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
181 for how to upgrade your code.
182 # Protect against Internet Explorer innerHTML behavior by specially
183 treating attributes with backticks but no angled brackets, quotes or
184 spaces. This constitutes a slight semantic change, which can be
185 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
187 # Protect against cssText/innerHTML by restricting allowed characters
188 used in fonts further than mandated by the specification and encoding
189 some extra special characters in URLs. Reported by Neike
190 Taika-Tessaro and Mario Heiderich.
191 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
192 ! More types of SPL autoloaders allowed on later versions of PHP.
193 ! Implementations for position, top, left, right, bottom, z-index
194 when %CSS.Trusted is on.
195 ! Add %Cache.SerializerPermissions option for custom serializer
196 directory/file permissions
197 ! Fix longstanding bug in Flash support for non-IE browsers, and
198 allow more wmode attributes.
199 ! Add %CSS.AllowedFonts to restrict permissible font names.
200 - Switch to an iterative traversal of the DOM, which prevents us
201 from running out of stack space for deeply nested documents.
202 Thanks Maxim Krizhanovsky for contributing a patch.
203 - Make removal of conditional IE comments ungreedy; thanks Bernd
205 - Escape CDATA before removing Internet Explorer comments.
206 - Fix removal of id attributes under certain conditions by ensuring
207 armor attributes are preserved when recreating tags.
208 - Check if schema.ser was corrupted.
209 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
210 This safety check is only done for HTMLPurifier.auto.php; if you
211 are using standalone or the specialized includes files, you're
212 expected to know what you're doing.
213 - Stop repeatedly writing the cache file after I'm done customizing a
214 raw definition. Reported by ajh.
215 - Switch to using require_once in the Bootstrap to work around bad
216 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
217 - Fix URI handling when hostname is missing but scheme is present.
218 Reported by Neike Taika-Tessaro.
219 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
221 - Fix harmless notice from indexing into empty string. Thanks Matthijs
222 Kooijman <matthijs@stdin.nl> for reporting.
223 - Don't autoclose no parent elements are able to support the element
224 that triggered the autoclose. In particular fixes strange behavior
225 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
226 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
228 4.2.0, released 2010-09-15
229 ! Added %Core.RemoveProcessingInstructions, which lets you remove
230 <? ... ?> statements.
231 ! Added %URI.DisableResources functionality; the directive originally
232 did nothing. Thanks David Rothstein for reporting.
233 ! Add documentation about configuration directive types.
234 ! Add %CSS.ForbiddenProperties configuration directive.
235 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
236 to utilize full-screen mode.
237 ! Add optional support for the <code>file</code> URI scheme, enable
238 by explicitly setting %URI.AllowedSchemes.
239 ! Add %Core.NormalizeNewlines options to allow turning off newline
241 - Fix improper handling of Internet Explorer conditional comments
242 by parser. Thanks zmonteca for reporting.
243 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
244 Thanks sidepodcast for the fix.
245 - Warn if an element is allowed, but an attribute it requires is
248 4.1.1, released 2010-05-31
249 - Fix undefined index warnings in maintenance scripts.
250 - Fix bug in DirectLex for parsing elements with a single attribute
252 - Rewrite CSS output logic for font-family and url(). Thanks Mario
253 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
254 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
255 - Emit an error for CollectErrors if a body is extracted
256 - Fix bug where in background-position for center keyword handling.
257 - Fix infinite loop when a wrapper element is inserted in a context
258 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
259 - Remove +x bit and shebang from index.php; only supported mode is to
260 explicitly call it with php.
261 - Make test script less chatty when log_errors is on.
263 4.1.0, released 2010-04-26
264 ! Support proprietary height attribute on table element
265 ! Support YouTube slideshows that contain /cp/ in their URL.
266 ! Support for data: URI scheme; not enabled by default, add it using
268 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
269 ! Support for Internet Explorer compatibility with %HTML.SafeObject
270 using %Output.FlashCompat.
271 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
272 - Always quote the insides of url(...) in CSS.
274 4.0.0, released 2009-07-07
275 # APIs for ConfigSchema subsystem have substantially changed. See
276 docs/dev-config-bcbreaks.txt for details; in essence, anything that
277 had both namespace and directive now have a single unified key.
278 # Some configuration directives were renamed, specifically:
279 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
280 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
281 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
282 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
283 As usual, the old directive names will still work, but will throw E_NOTICE
285 # The allowed values for class have been relaxed to allow all of CDATA for
286 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
287 %Attr.ClassUseCDATA to false.
288 # Instead of appending the content model to an old content model, a blank
289 element will replace the old content model. You can use #SUPER to get
290 the old content model.
291 ! More robust support for name="" and id=""
292 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
293 configuration, and have changes to that configuration be propagated
294 to all of its children.
295 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
296 the name attribute when set. Use with care. Thanks Ian Cook for
298 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
299 tags that contain non-breaking spaces as well other whitespace. You
300 can also modify which tags should have maintained with
301 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
302 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
303 classes users can use to a specified finite set of classes, and
304 %Attr.ForbiddenClasses, which is the logical inverse.
305 ! You can now maintain your own configuration schema directories by
306 creating a config-schema.php file or passing an extra argument. Check
307 docs/dev-config-schema.html for more details.
308 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
309 your configuration in a compact serial file, which you can unserialize
310 and use directly without having to go through the overhead of setup.
311 - Fix bug where URIDefinition would not get cleared if it's directives got
313 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
314 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
315 - Make %URI.Munge not apply to links that have the same host as your host.
316 - Prevent stray </body> tag from truncating output, if a second </body>
318 . Created script maintenance/rename-config.php for renaming a configuration
319 directive while maintaining its alias. This script does not change source code.
320 . Implement namespace locking for definition construction, to prevent
321 bugs where a directive is used for definition construction but is not
322 used to construct the cache hash.
324 3.3.0, released 2009-02-16
325 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
326 ! Implement generic property list classess
327 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
328 does not do the "right thing" with characters not supported in the output
330 - Spellcheck UTF-8: The Secret To Character Encoding
331 - Fix improper removal of the contents of elements with only whitespace. Thanks
332 Eric Wald for reporting.
333 - Fix broken test suite in versions of PHP without spl_autoload_register()
334 - Fix degenerate case with YouTube filter involving double hyphens.
335 Thanks Pierre Attar for reporting.
336 - Fix YouTube rendering problem on certain versions of Firefox.
337 - Fix CSSDefinition Printer problems with decorators
338 - Add text parameter to unit tests, forces text output
339 . Add verbose mode to command line test runner, use (--verbose)
340 . Turn on unit tests for UnitConverter
341 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
342 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
344 . Removed trailing whitespace from all text files, see
345 remote-trailing-whitespace.php maintenance script.
346 . Convert configuration to use property list backend.
348 3.2.0, released 2008-10-31
349 # Using %Core.CollectErrors forces line number/column tracking on, whereas
350 previously you could theoretically turn it off.
351 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
352 use handleEnd() instead.
353 ! %Output.AttrSort for when you need your attributes in alphabetical order to
354 deal with a bug in FCKEditor. Requested by frank farmer.
355 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
356 ! Proper support for name attribute. It is now allowed and equivalent to the id
357 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
358 is heavy (for all doctypes).
359 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
360 use on hand-written HTML.
361 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
362 the strategy to be used, standalone, on untrusted input.
363 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
364 processing of left angled brackets in smileys and other whatnot.
365 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
366 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
367 the --only-phpt parameter, although for backwards-compatibility the flag
369 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
370 Users who are not performing inbound filtering, this may seem a little
371 useless, but as a bonus, the test suite and handling of edge cases is also
373 ! Experimental implementation of forms for %HTML.Trusted
374 ! Track column numbers when maintain line numbers is on
375 ! Proprietary 'background' attribute on table-related elements converted into
376 corresponding CSS. Thanks Fusemail for sponsoring this feature!
377 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
379 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
380 time of operation varies slightly from notifyEnd() as *all* end tokens are
381 processed by the injector before they are subject to the well-formedness rules.
382 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
383 basename of image when not present.
384 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
385 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
386 the other involving an undefined $is_folder error.
387 - Throw error when %Core.Encoding is set to a spurious value. Previously,
388 this errored silently and returned false.
389 - Redirected stderr to stdout for flush error output.
390 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
392 - Do not re-munge URL if the output URL has the same host as the input URL.
394 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
395 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
396 - Fix bug with inline elements in blockquotes conflicting with strict doctype
397 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
398 - Fix bug where dots and double-dots in absolute URLs without hostname were
399 not collapsed by URIFilter_MakeAbsolute.
400 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
401 by reordering their addition.
402 - Will now throw exception on many error conditions during lexer creation; also
403 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
405 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
406 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
407 Reported by David Morton.
408 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
409 for more interesting filter-backtracking
410 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
411 index to reprocess tokens.
412 . StringHashParser now allows for multiline sections with "empty" content;
413 previously the section would remain undefined.
414 . Added --quick option to multitest.php, which tests only the most recent
415 release for each series.
416 . Added --distro option to multitest.php, which accepts either 'normal' or
417 'standalone'. This supercedes --exclude-normal and --exclude-standalone
419 3.1.1, released 2008-06-19
420 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
421 In order to enable this again, please set %URI.MungeResources to true.
422 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
423 and height/width HTML with %HTML.MaxImgLength.
424 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
425 for sponsoring this feature. Check out the corresponding documentation
426 for details. (Att Nightly testers: The API for this feature changed before
427 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
428 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
429 ! Implemented post URI filtering. Set member variable $post to true to set
431 ! Allow modules to define injectors via $info_injector. Injectors are
432 automatically disabled if injector's needed elements are not found.
433 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
434 Thanks Chris for sponsoring. If you've been using ad hoc code from the
435 forums, PLEASE use this instead.
436 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
437 embedded, tag name, attribute name, CSS property name). See %URI.Munge
438 for more details. Requested by Jochem Blok.
439 - Disable percent height/width attributes for img.
440 - AttrValidator operations are now atomic; updates to attributes are not
441 manifest in token until end of operations. This prevents naughty internal
442 code from directly modifying CurrentToken when they're not supposed to.
443 This semantics change was requested by frank farmer.
444 - Percent encoding checks enabled for URI query and fragment
445 - Fix stray backslashes in font-family; CSS Unicode character escapes are
446 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
448 - Improve parseCDATA algorithm to take into account newline normalization
449 - Account for browser confusion between Yen character and backslash in
450 Shift_JIS encoding. This fix generalizes to any other encoding which is not
451 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
452 - Fix missing configuration parameter in Generator calls. Thanks vs for the
454 - Improved adherence to Unicode by checking for non-character codepoints.
455 Thanks Geoffrey Sneddon for reporting. This may result in degraded
456 performance for extremely large inputs.
457 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
459 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
460 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
462 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
463 to __construct($min, $max). __construct(true) is equivalent to
465 . Added HTMLPurifier_AttrDef_Switch class
466 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
467 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
468 get this called with the configuration object. All modules now
469 use this rather than __construct(), although legacy code using constructors
470 will still work--the new format, however, lets modules access the
471 configuration object for HTML namespace dependant tweaks.
472 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
473 . ConfigSchema data-structure heavily optimized; on average it uses a third
474 the memory it did previously. The interface has changed accordingly,
475 consult changes to HTMLPurifier_Config for details.
476 . Variable parsing types now are magic integers instead of strings
477 . Added benchmark for ConfigSchema
478 . HTMLPurifier_Generator requires $config and $context parameters. If you
479 don't know what they should be, use HTMLPurifier_Config::createDefault()
480 and new HTMLPurifier_Context().
481 . Printers now properly distinguish between output configuration, and
482 target configuration. This is not applicable to scripts using
483 the Printers for HTML Purifier related tasks.
484 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
485 fatal errors will ensue.
486 . URIFilter->prepare can return false in order to abort loading of the filter
487 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
488 an external resource.
489 . %URI.Munge functionality factored out into a post-filter class.
490 . Added CurrentCSSProperty context variable during CSS validation
492 3.1.0, released 2008-05-18
493 # Unnecessary references to objects (vestiges of PHP4) removed from method
494 signatures. The following methods do not need references when assigning from
495 them and will result in E_STRICT errors if you try:
496 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
497 + HTMLPurifier_ConfigSchema::instance()
498 + HTMLPurifier_DefinitionCacheFactory::instance()
499 + HTMLPurifier_DefinitionCacheFactory->create()
500 + HTMLPurifier_DoctypeRegistry->register()
501 + HTMLPurifier_DoctypeRegistry->get()
502 + HTMLPurifier_HTMLModule->addElement()
503 + HTMLPurifier_HTMLModule->addBlankElement()
504 + HTMLPurifier_LanguageFactory::instance()
505 # Printer_ConfigForm's get*() functions were static-ified
506 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
507 form of tag@attr, NOT tag.attr (which will throw an error and won't do
508 anything). This is for forwards compatibility with XML; you'd do best
509 to migrate an %HTML.AllowedAttributes directives to this syntax too.
510 ! Allow index to be false for config from form creation
511 ! Added HTMLPurifier::VERSION constant
512 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
513 and allows for version numbers like "3.1.0-dev".
514 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
515 ! HTML Purifier's URI handling is a lot more robust, with much stricter
516 validation checks and better percent encoding handling. Thanks Gareth Heyes
517 for indicating security vulnerabilities from lax percent encoding.
518 ! Bootstrap autoloader deals more robustly with classes that don't exist,
519 preventing class_exists($class, true) from barfing.
520 - InterchangeBuilder now alphabetizes its lists
521 - Validation error in configdoc output fixed
522 - Iconv and other encoding errors muted even with custom error handlers that
523 do not honor error_reporting
524 - Add protection against imagecrash attack with CSS height/width
525 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
526 - Fixed and revamped broken ConfigForm smoketest
527 - Bug with bool/null fields in Printer_ConfigForm fixed
528 - Bug with global forbidden attributes fixed
529 - Improved error messages for allowed and forbidden HTML elements and attributes
530 - Missing (or null) in configdoc documentation restored
531 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
532 of DOM), HTML Purifier punts to DirectLex
533 - Fatal error with unserialization of ScriptRequired
534 - Created directories are now chmod'ed properly
535 - Fixed bug with fallback languages in LanguageFactory
536 - Standalone testing setup properly with autoload
537 . Out-of-date documentation revised
538 . UTF-8 encoding check optimization as suggested by Diego
539 . HTMLPurifier_Error removed in favor of exceptions
540 . More copy() function removed; should use clone instead
541 . More extensive unit tests for HTMLDefinition
542 . assertPurification moved to central harness
543 . HTMLPurifier_Generator accepts $config and $context parameters during
544 instantiation, not runtime
545 . Double-quotes outside of attribute values are now unescaped
547 3.1.0rc1, released 2008-04-22
548 # Autoload support added. Internal require_once's removed in favor of an
549 explicit require list or autoloading. To use HTML Purifier,
550 you must now either use HTMLPurifier.auto.php
551 or HTMLPurifier.includes.php; setting the include path and including
552 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
553 as well to register our autoload handler (or modify your autoload function
554 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
555 HTMLPurifier.safe-includes.php for a less performance friendly but more
556 user-friendly library load.
557 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
558 information is stored in the ConfigSchema directory, and the
559 maintenance/generate-schema-cache.php generates the schema.ser file, which
560 is now instantiated. Support for userland schema changes coming soon!
561 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
562 alias; to get rid of these errors just modify your configuration to use
563 the new directive name.
564 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
565 enabled using %Filter.$filter_name or by setting your own filters using
567 # Directive-level safety properties superceded in favor of module-level
568 safety. Internal method HTMLModule->addElement() has changed, although
569 the externally visible HTMLDefinition->addElement has *not* changed.
570 ! Extra utility classes for testing and non-library operations can
571 be found in extras/. Specifically, these are FSTools and ConfigDoc.
572 You may find a use for these in your own project, but right now they
573 are highly experimental and volatile.
574 ! Integration with PHPT allows for automated smoketests
575 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
576 by Chris. You can enable them with %HTML.Proprietary if your client
578 ! Support for !important CSS cascade modifier. By default, this will be stripped
579 from CSS, but you can enable it using %CSS.AllowImportant
580 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
582 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
583 Developer error (not enduser error) can cause these to be triggered.
584 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
585 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
586 mucking around with HTMLPurifier_CSSDefinition
587 ! ConfigDoc output has been enhanced with version and deprecation info.
588 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
589 - Autoclose now operates iteratively, i.e. <span><span><div> now has
590 both span tags closed.
591 - Various HTMLPurifier_Config convenience functions now accept another parameter
592 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
594 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
595 - Fix bug in ExtractStyleBlocks with comments in style tags
596 - Fix bug in comment parsing for DirectLex
597 - Flush output now displayed when in command line mode for unit tester
598 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
599 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
600 on the same element without emitting errors.
601 - Fixed fatal error in PH5P lexer with invalid tag names
602 . Plugins now get their own changelogs according to project conventions.
603 . Convert tokens to use instanceof, reducing memory footprint and
604 improving comparison speed.
605 . Dry runs now supported in SimpleTest; testing facilities improved
606 . Bootstrap class added for handling autoloading functionality
607 . Implemented recursive glob at FSTools->globr
608 . ConfigSchema now has instance methods for all corresponding define*
610 . A couple of new historical maintenance scripts were added.
611 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
612 . tests/index.php can now be run from any directory.
613 . HTMLPurifier_Token subclasses split into seperate files
614 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
615 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
616 . New --php=php flag added, allows PHP executable to be specified (command
618 . htmlpurifier_add_test() preferred method to translate test files in to
619 classes, because it handles PHPT files too.
620 . Debugger class is deprecated and will be removed soon.
621 . Command line argument parsing for testing scripts revamped, now --opt value
623 . Smoketests now cleanup after magic quotes
624 . Generator now can output comments (however, comments are still stripped
625 from HTML Purifier output)
626 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
627 HTMLPurifier_VarParser->parse()
628 . Integers auto-cast into float type by VarParser.
629 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
630 during cache generation
631 . Reordered script calls in maintenance/flush.php
632 . Command line scripts now honor exit codes
633 . When --flush fails in unit testers, abort tests and print message
634 . Improved documentation in docs/dev-flush.html about the maintenance scripts
635 . copy() methods removed in favor of clone keyword
637 3.0.0, released 2008-01-06
638 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
639 until PHP 4 is completely deprecated, but no new features will be added
641 + Visibility declarations added
642 + Constructor methods renamed to __construct()
643 + PHP4 reference cruft removed (in progress)
644 ! CSS properties are now case-insensitive
645 ! DefinitionCacheFactory now can register new implementations
646 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
647 documents and cleaning their contents up. Requires the CSSTidy library
648 <http://csstidy.sourceforge.net/>. You can access the blocks with the
649 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
650 The output CSS can also be "scoped" for a specific element, use:
651 %Filter.ExtractStyleBlocksScope
652 ! Experimental support for some proprietary CSS attributes allowed:
653 opacity (and all of the browser-specific equivalents) and scrollbar colors.
654 Enable by setting %CSS.Proprietary to true.
655 - Colors missing # but in hex form will be corrected
656 - CSS Number algorithm improved
657 - Unit testing and multi-testing now on steroids: command lines,
658 XML output, and other goodies now added.
659 . Unit tests for Injector improved
661 + HTMLPurifier_AttrDef_CSS_AlphaValue
662 + HTMLPurifier_AttrDef_CSS_Filter
663 . Multitest now has a file docblock
665 2.1.3, released 2007-11-05
666 ! tests/multitest.php allows you to test multiple versions by running
667 tests/index.php through multiple interpreters using `phpv` shell
668 script (you must provide this script!)
669 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
671 - Injector algorithm further refined: off-by-one error regarding skip
672 counts for dormant injectors fixed
673 - Corrective blockquote definition now enabled for HTML 4.01 Strict
674 - Fatal error when <img> tag (or any other element with required attributes)
675 has 'id' attribute fixed, thanks NykO18 for reporting
676 - Fix warning emitted when a non-supported URI scheme is passed to the
677 MakeAbsolute URIFilter, thanks NykO18 (again)
678 - Further refine AutoParagraph injector. Behavior inside of elements
679 allowing paragraph tags clarified: only inline content delimeted by
680 double newlines (not block elements) are paragraphed.
681 - Buggy treatment of end tags of elements that have required attributes
682 fixed (does not manifest on default tag-set)
683 - Spurious internal content reorganization error suppressed
684 - HTMLDefinition->addElement now returns a reference to the created
685 element object, as implied by the documentation
686 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
687 - Fix a theoretical class of infinite loops from DirectLex reported
689 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
691 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
692 HTMLDefinition errors, this may indicate problems with error-collecting
694 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
695 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
696 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
697 to better communicate its purpose
698 . Error unit tests can now specify the expectation of no errors. Future
699 iterations of the harness will be extremely strict about what errors
701 . Extend Injector hooks to allow for more powerful injector routines
702 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
704 . Doxygen configuration file updated, with minor improvements
705 . Test runner now checks for similarly named files in conf/ directory too.
706 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
708 . Maintenance script for generating PH5P patch added, original PH5P source
709 file also added under version control
710 . Full unit test runner script title made more descriptive with PHP version
711 . Updated INSTALL file to state that 4.3.7 is the earliest version we
714 2.1.2, released 2007-09-03
715 ! Implemented Object module for trusted users
716 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
718 require_once 'HTMLPurifier/Lexer/PH5P.php';
719 $config->set('Core', 'LexerImpl', 'PH5P');
720 Note that this Lexer introduces some classes not in the HTMLPurifier
721 namespace. Also, this is PHP5 only.
722 ! CSS property border-spacing implemented
723 - Fix non-visible parsing error in DirectLex with empty tags that have
724 slashes inside attribute values.
725 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
726 accepted as valid CSS. Usually non-visible, because this styling is the
727 default for tables in most browsers. Thanks Brett Zamir for pointing
729 - Fix validation errors in configuration form
730 - Hammer out a bunch of edge-case bugs in the standalone distribution
731 - Inclusion reflection removed from URISchemeRegistry; you must manually
732 include any new schema files you wish to use
733 - Numerous typo fixes in documentation thanks to Brett Zamir
734 . Unit test refactoring for one logical test per test function
735 . Config and context parameters in ComplexHarness deprecated: instead, edit
736 the $config and $context member variables
737 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
738 really make a difference, but is good for completeness sake
739 . merge-library.php script refactored for greater code reusability and
742 2.1.1, released 2007-08-04
743 - Fix show-stopper bug in %URI.MakeAbsolute functionality
744 - Fix PHP4 syntax error in standalone version
745 . Add prefix directory to include path for standalone, this prevents
746 other installations from clobbering the standalone's URI schemes
747 . Single test methods can be invoked by prefixing with __only
749 2.1.0, released 2007-08-02
750 # flush-htmldefinition-cache.php superseded in favor of a generic
751 flush-definition-cache.php script, you can clear a specific cache
752 by passing its name as a parameter to the script
753 ! Phorum mod implemented for HTML Purifier
754 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
755 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
756 for PHP4 (DirectLex).
757 ! Standalone file now available, which greatly reduces the amount of
758 includes (although there are still a few files that reside in the
760 ! Relative URIs can now be transformed into their absolute equivalents
761 using %URI.Base and %URI.MakeAbsolute
762 ! Ruby implemented for XHTML 1.1
763 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
765 ! UTF-8 font names now supported in CSS
766 - AutoFormatters emit friendly error messages if tags or attributes they
768 - ConfigForm's compactification of directive names is now configurable
769 - AutoParagraph autoformatter algorithm refined after field-testing
770 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
772 - Contents of <style> tags removed by default when tags are removed
773 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
774 for output cache invalidation
775 . ConfigForm printer now can retrieve CSS and JS files as strings, in
776 case HTML Purifier's directory is not publically accessible
777 . Introduce new text/itext configuration directive values: these represent
778 longer strings that would be more appropriately edited with a textarea
779 . Allow newlines to act as separators for lists, hashes, lookups and
781 . ConfigForm generates textareas instead of text inputs for lists, hashes,
782 lookups, text and itext fields
783 . Hidden element content removal genericized: %Core.HiddenElements can
784 be used to customize this behavior, by default <script> and <style> are
786 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
787 . Custom ChildDef added to default include list
788 . URIScheme reflection improved: will not attempt to include file if class
789 already exists. May clobber autoload, so I need to keep an eye on it
790 . ConfigSchema heavily optimized, will only collect information and validate
791 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
792 . AttrDef_URI unit tests and implementation refactored
793 . benchmarks/ directory now protected from public view with .htaccess file;
794 run the tests via command line
795 . URI scheme is munged off if there is no authority and the scheme is the
797 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
798 . Interface for URIScheme changed
799 . Generic URI object to hold components of URI added, most systems involved
800 in URI validation have been migrated to use it
801 . Custom filtering for URIs factored out to URIDefinition interface for
802 maximum extensibility
804 2.0.1, released 2007-06-27
805 ! Tag auto-closing now based on a ChildDef heuristic rather than a
806 manually set auto_close array; some behavior may change
807 ! Experimental AutoFormat functionality added: auto-paragraph and
808 linkify your HTML input by setting %AutoFormat.AutoParagraph and
809 %AutoFormat.Linkify to true
810 ! Newlines normalized internally, and then converted back to the
811 value of PHP_EOL. If this is not desired, set your newline format
812 using %Output.Newline.
813 ! Beta error collection, messages are implemented for the most generic
814 cases involving Lexing or Strategies
815 - Clean up special case code for <script> tags
816 - Reorder includes for DefinitionCache decorators, fixes a possible
818 - Fixed bug where manually modified definitions were not saved via cache
819 (mostly harmless, except for the fact that it would be a little slower)
820 - Configuration objects with different serials do not clobber each
821 others when revision numbers are unequal
822 - Improve Serializer DefinitionCache directory permissions checks
823 - DefinitionCache no longer throws errors when it encounters old
824 serial files that do not conform to the current style
825 - Stray xmlns attributes removed from configuration documentation
826 - configForm.php smoketest no longer has XSS vulnerability due to
827 unescaped print_r output
828 - Printer adheres to configuration's directives on output format
829 - Fix improperly named form field in ConfigForm printer
830 . Rewire some test-cases to swallow errors rather than expect them
831 . HTMLDefinition printer updated with some of the new attributes
832 . DefinitionCache keys reordered to reflect precedence: version number,
833 hash, then revision number
834 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
835 . Interlinking in configuration documentation added using
836 Injector_PurifierLinkify
837 . Directives now keep track of aliases to themselves
838 . Error collector now requires a severity to be passed, use PHP's internal
839 error constants for this
840 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
841 much easier selective embedding of configuration values
842 . Doctype objects now accept public and system DTD identifiers
843 . %HTML.Doctype is now constrained by specific values, to specify a custom
844 doctype use new %HTML.CustomDoctype
845 . ConfigForm truncates long directives to keep the form small, and does
846 not re-output namespaces
848 2.0.0, released 2007-06-20
849 # Completely refactored HTMLModuleManager, decentralizing safety
851 # Transform modules changed to Tidy modules, which offer more flexibility
852 and better modularization
853 # Configuration object now finalizes itself when a read operation is
854 performed on it, ensuring that its internal state stays consistent.
855 To revert this behavior, you can set the $autoFinalize member variable
856 off, but it's not recommended.
857 # New compact syntax for AttrDef objects that can be used to instantiate
858 new objects via make()
859 # Definitions (esp. HTMLDefinition) are now cached for a significant
860 performance boost. You can disable caching by setting %Core.DefinitionCache
861 to null. You CANNOT edit raw definitions without setting the corresponding
862 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
863 # Contents between <script> tags are now completely removed if <script>
865 # Prototype-declarations for Lexer removed in favor of configuration
866 determination of Lexer implementations.
867 ! HTML Purifier now works in PHP 4.3.2.
868 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
870 ! Configuration directives that accept hashes now allow new string
871 format: key1:value1,key2:value2
872 ! ConfigDoc now factored into OOP design
873 ! All deprecated elements now natively supported
874 ! Implement TinyMCE styled whitelist specification format in
876 ! Config object gives more friendly error messages when things go wrong
877 ! Advanced API implemented: easy functions for creating elements (addElement)
878 and attributes (addAttribute) on HTMLDefinition
879 ! Add native support for required attributes
880 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
881 - DOMLex will not emit errors when a custom error handler that does not
882 honor error_reporting is used
883 - StrictBlockquote child definition refrains from wrapping whitespace
885 - Bug resulting from tag transforms to non-allowed elements fixed
886 - ChildDef_Custom's regex generation has been improved, removing several
888 . Unit test for ElementDef created, ElementDef behavior modified to
890 . Added convenience functions for HTMLModule constructors
891 . AttrTypes now has accessor functions that should be used instead
892 of directly manipulating info
893 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
894 . Add extra protection in AttrDef_URI against phantom Schemes
895 . Doctype object added to HTMLDefinition which describes certain aspects
896 of the operational document type
897 . Lexer is now pre-emptively included, with a conditional include for the
899 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
900 . DirectLex can now track line-numbers
901 . Preliminary error collector is in place, although no code actually reports
903 . Factor out most of ValidateAttributes to new AttrValidator class
905 1.6.1, released 2007-05-05
906 ! Support for more deprecated attributes via transformations:
907 + hspace and vspace in img
908 + size and noshade in hr
911 + align in caption, table, img and hr
912 + type in ul, ol and li
913 ! DirectLex now preserves text in which a < bracket is followed by
914 a non-alphanumeric character. This means that certain emoticons
916 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
917 images will hang around with an empty src
918 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
920 ! CSS property white-space now allows nowrap (supported in all modern
921 browsers) but not others (which have spotty browser implementations)
922 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
923 lang is now moved over to xml:lang.
924 ! Attribute transformation smoketest available at smoketests/attrTransform.php
925 ! Transformation of font's size attribute now handles super-large numbers
926 - Possibly fatal bug with __autoload() fixed in module manager
927 - Invert HTMLModuleManager->addModule() processing order to check
928 prefixes first and then the literal module
929 - Empty strings get converted to empty arrays instead of arrays with
930 an empty string in them.
931 - Merging in attribute lists now works.
932 . Demo script removed: it has been added to the website's repository
933 . Basic.php script modified to work out of the box
934 . Refactor AttrTransform classes to reduce duplication
935 . AttrTransform_TextAlign axed in favor of a more general
936 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
937 see how the new equivalent is implemented
938 . Unit tests now use exclusively assertIdentical
940 1.6.0, released 2007-04-01
941 ! Support for most common deprecated attributes via transformations:
942 + bgcolor in td, th, tr and table
945 + width in td, th and hr
947 ! Support for CSS attribute 'height' added
948 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
949 and %Attr.AllowedRev to activate
950 - You can define ID blacklists using regular expressions via
951 %Attr.IDBlacklistRegexp
952 - Error messages are emitted when you attempt to "allow" elements or
953 attributes that HTML Purifier does not support
954 - Fix segfault in unit test. The problem is not very reproduceable and
955 I don't know what causes it, but a six line patch fixed it.
957 1.5.0, released 2007-03-23
958 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
959 doesn't actually do anything yet, but keep your eyes peeled.
960 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
961 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
962 I am loathe to release beta quality APIs, but this is exactly that;
963 don't use the internal interfaces if you're not willing to do migration
965 - Allow 'x' subtag in language codes
966 - Fixed buggy chameleon-support for ins and del
967 . Added support for IDREF attributes (i.e. for)
968 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
969 . Removed context variable ParentType, replaced with IsInline, which
970 is false when you're not inline and an integer of the parent that
971 caused you to become inline when you are (so possibly zero)
972 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
973 and HTMLDefinition->content_sets
974 . StrictBlockquote now reports what elements its supposed to allow,
975 rather than what it does allow
976 . Removed HTMLDefinition->info_flow_elements in favor of
977 HTMLDefinition->content_sets['Flow']
978 . Removed redundant "exclusionary" definitions from DTD roster
979 . StrictBlockquote now requires a construction parameter as if it
980 were an Required ChildDef, this is the "real" set of allowed elements
981 . AttrDef partitioned into HTML, CSS and URI segments
982 . Modify Youtube filter regexp to be multiline
983 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
984 some edge cases where a DOMDocument class exists in a PHP4 environment
985 due to DOM XML extension.
987 1.4.1, released 2007-01-21
988 ! docs/enduser-youtube.html updated according to new functionality
989 - YouTube IDs can have underscores and dashes
991 1.4.0, released 2007-01-21
992 ! Implemented list-style-image, URIs now allowed in list-style
993 ! Implemented background-image, background-repeat, background-attachment
994 and background-position CSS properties. Shorthand property background
995 supports all of these properties.
996 ! Configuration documentation looks nicer
997 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
998 characters while %Core.Encoding is set to a non-UTF-8 encoding.
999 ! Support for configuration directive aliases added
1000 ! Config object can now be instantiated from ini files
1001 ! YouTube preservation code added to the core, with two lines of code
1002 you can add it as a filter to your code. See smoketests/preserveYouTube.php
1004 ! Moved SLOW to docs/enduser-slow.html and added code examples
1005 - Replaced version check with functionality check for DOM (thanks Stephen
1007 . Added smoketest 'all.php', which loads all other smoketests via frames
1008 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
1009 . Added convenient single test selector form on test runner
1011 1.3.2, released 2006-12-25
1012 ! HTMLPurifier object now accepts configuration arrays, no need to manually
1013 instantiate a configuration object
1014 ! Context object now accessible to outside
1015 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
1016 also corresponding smoketest preserveYouTube.php.
1017 ! Added purifyArray(), which takes a list of HTML and purifies it all
1018 ! Added static member variable $version to HTML Purifier with PHP-compatible
1019 version number string.
1020 - Fixed fatal error thrown by upper-cased language attributes
1021 - printDefinition.php: added labels, added better clarification
1022 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
1023 a HTMLPurifier_Config object.
1025 1.3.1, released 2006-12-06
1026 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
1027 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
1028 (thanks to .mario for reporting this)
1029 . Standardized all attribute handling variables to attr, made it plural
1031 1.3.0, released 2006-11-26
1032 # Invalid images are now removed, rather than replaced with a dud
1033 <img src="" alt="Invalid image" />. Previous behavior can be restored
1034 with new directive %Core.RemoveInvalidImg set to false.
1035 ! (X)HTML Strict now supported
1036 + Transparently handles inline elements in block context (blockquote)
1037 ! Added GET method to demo for easier validation, added 50kb max input size
1038 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
1039 ! New directive %HTML.Parent, allows you to only allow inline content
1040 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1041 users narrow the set of allowed tags
1042 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1043 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1044 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1045 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1046 service to avoid PageRank leaks or warn users that they are exiting your site.
1047 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1048 the configuration settings and see how the internal rules are affected.
1049 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1050 xssAttacks.php smoketest updated accordingly.
1051 - Added missing type to ChildDef_Chameleon
1052 - Remove Tidy option from demo if there is not Tidy available
1053 . ChildDef_Required guards against empty tags
1054 . Lookup table HTMLDefinition->info_flow_elements added
1055 . Added peace-of-mind variable initialization to Strategy_FixNesting
1056 . Added HTMLPurifier->info_parent_def, parent child processing made special
1057 . Added internal documents briefly summarizing future progression of HTML
1058 . HTMLPurifier_Config->getBatch($namespace) added
1059 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1060 . Refactored ChildDef classes into their own files
1062 1.2.0, released 2006-11-19
1063 # ID attributes now disabled by default. New directives:
1064 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1065 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1066 so that they don't collide with your IDs
1067 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1068 instances of user content on the page
1069 + Profuse documentation on how to use these available in docs/enduser-id.txt
1070 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1071 ! Added percent encoding normalization
1072 ! XSS attacks smoketest given facelift
1073 ! Configuration documentation now has table of contents
1074 ! Added %URI.DisableExternal, which prevents links to external websites. You
1075 can also use %URI.Host to permit absolute linking to subdomains
1076 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1077 - Type variable in HTMLDefinition was not being set properly, fixed
1078 - Documentation updated
1079 + TODO added request Phalanger
1080 + TODO added request Native compression
1081 + TODO added request Remove redundant tags
1082 + TODO added possible plaintext formatter for HTML Purifier documentation
1083 + Updated ConfigDoc TODO
1084 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1085 and AttrDef/Host.php
1086 + Revamped documentation into HTML, along with misc updates
1087 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1088 to retrieve a non-existent variable
1089 . Switched to purify()-wide Context object registry
1090 . Refactored unit tests to minimize duplication
1091 . XSS attack sheet updated
1092 . configdoc.xml now has xml:space attached to default value nodes
1093 . Allow configuration directives to permit null values
1094 . Cleaned up test-cases to remove unnecessary swallowErrors()
1096 1.1.2, released 2006-09-30
1097 ! Add HTMLPurifier.auto.php stub file that configures include_path
1098 - Documentation updated
1099 + INSTALL document rewritten
1100 + TODO added semi-lossy conversion
1101 + API Doxygen docs' file exclusions updated
1102 + Added notes on HTML versus XML attribute whitespace handling
1103 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1104 + Noted that config object's definitions are cached versions
1105 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1106 - ftp:// URIs now have their typecodes checked
1107 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1108 . Line endings standardized throughout project (svn:eol-style standardized)
1109 . Refactored parseData() to general Lexer class
1110 . Tester named "HTML Purifier" not "HTMLPurifier"
1112 1.1.1, released 2006-09-24
1113 ! Configuration option to optionally Tidy up output for indentation to make up
1114 for dropped whitespace by DOMLex (pretty-printing for the entire application
1115 should be done by a page-wide Tidy)
1116 - Various documentation updates
1117 - Fixed parse error in configuration documentation script
1118 - Fixed fatal error in benchmark scripts, slightly augmented
1119 - As far as possible, whitespace is preserved in-between table children
1120 - Sample test-settings.php file included
1122 1.1.0, released 2006-09-16
1123 ! Directive documentation generation using XSLT
1124 ! XHTML can now be turned off, output becomes <br>
1125 - Made URI validator more forgiving: will ignore leading and trailing
1126 quotes, apostrophes and less than or greater than signs.
1127 - Enforce alphanumeric namespace and directive names for configuration.
1128 - Table child definition made more flexible, will fix up poorly ordered elements
1129 . Renamed ConfigDef to ConfigSchema
1131 1.0.1, released 2006-09-04
1132 - Fixed slight bug in DOMLex attribute parsing
1133 - Fixed rejection of case-insensitive configuration values when there is a
1134 set of allowed values. This manifested in %Core.Encoding.
1135 - Fixed rejection of inline style declarations that had lots of extra
1136 space in them. This manifested in TinyMCE.
1138 1.0.0, released 2006-09-01
1139 ! Shorthand CSS properties implemented: font, border, background, list-style
1140 ! Basic color keywords translated into hexadecimal values
1141 ! Table CSS properties implemented
1142 ! Support for charsets other than UTF-8 (defined by iconv)
1143 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1144 - Fixed broken numeric entity conversion
1145 - API documentation completed
1146 . (HTML|CSS)Definition de-singleton-ized
1148 1.0.0beta, released 2006-08-16
1149 ! First public release, most functionality implemented. Notable omissions are:
1150 + Shorthand CSS properties
1151 + Table CSS properties
1152 + Deprecated attribute transformations