1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 4.9.1, released 2017-03-08
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 - Fix entity decoding algorithm to be more conservative about
36 decoding entities that are missing trailing semicolon.
37 To get old behavior, set %Core.LegacyEntityDecoder to true.
39 - Workaround libxml bug when HTML tags are embedded inside
40 script tags. To disable workaround set %Core.AggressivelyRemoveScript
42 # By default, when a link has a target attribute associated
43 with it, we now also add rel="noopener" in order to
44 prevent the new window from being able to overwrite
45 the original frame. To disable this protection,
46 set %HTML.TargetNoopener to FALSE.
48 4.9.0 was cut on Git but never properly released; when we did the
49 real release we decided to skip this version number.
51 4.8.0, released 2016-07-16
52 # By default, when a link has a target attribute associated
53 with it, we now also add rel="noreferrer" in order to
54 prevent the new window from being able to overwrite
55 the original frame. To disable this protection,
56 set %HTML.TargetNoreferrer to FALSE.
57 ! Full PHP 7 compatibility, the test suite is ALL GO.
58 ! %CSS.AllowDuplicates permits duplicate CSS properties.
59 ! Support for 'tel' URIs.
60 ! Partial support for 'border-radius' properties when %CSS.AllowProprietary is true.
61 The slash syntax, i.e., 'border-radius: 2em 1em 4em / 0.5em 3em' is not
63 ! %Attr.ID.HTML5 turns on HTML5-style ID handling.
64 - alt truncation could result in malformed UTF-8 sequence. Don't
65 truncate. Thanks Brandon Farber for reporting.
66 - Linkify regex is smarter, based off of Gruber's regex.
67 - IDNA supported natively on PHP 5.3 and later.
68 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
70 - Minor bounds error fix to squash a PHP 7 notice.
71 - Support non-/tmp temporary directories for data:// validation
72 - Give a better error message when a user attempts to allow
73 ul/ol without allowing li.
74 - On some versions of PHP, the Serializer DefinitionCache could
75 infinite loop when the directory exists but is not listable. (#49)
76 - Don't match for <body> inside comments with
77 %Core.ConvertDocumentToFragment. (#67)
78 - SafeObject is now less case sensitive. (#57)
79 - AutoFormat.RemoveEmpty.Predicate now correctly renders in
82 4.7.0, released 2015-08-04
83 # opacity is now considered a "tricky" CSS property rather than a
85 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
86 an element should be considered "empty" (maybe preserve if it
87 has attributes), and modify iframe support so that the iframe
88 is removed if it is missing a src attribute. Thanks meeva for
90 - Don't truncate upon encountering </div> when using DOMLex. Thanks
91 Myrto Christina for finally convincing me to fix this.
92 - Update YouTube filter for new code.
93 - Fix parsing of rgb() values with spaces in them for 'border'
95 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
98 4.6.0, released 2013-11-30
99 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
100 Please update any verification scripts you may have.
101 # URI parsing algorithm was made more strict, so only prefixes which
102 looks like schemes will actually be schemes. Thanks
103 Michael Gusev <mgusev@sugarcrm.com> for fixing.
104 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
106 ! New directive %Core.AllowHostnameUnderscore which allows underscores
108 - Eliminate quadratic behavior in DOMLex by using a proper queue.
109 Thanks Ole Laursen for noticing this.
110 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
111 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
112 Networks for sponsoring this work.
113 - Made Linkify URL parser a bit less permissive, so that non-breaking
114 spaces and commas are not included as part of URL. Thanks nAS for fixing.
115 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
116 David Hirtz for reporting.
117 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
120 4.5.0, released 2013-02-17
121 # Fix bug where stacked attribute transforms clobber each other;
122 this also means it's no longer possible to override attribute
123 transforms in later modules. No internal code was using this
124 but this may break some clients.
125 # We now use SHA-1 to identify cached definitions, instead of MD5.
126 ! Support display:inline-block
127 ! Support for more white-space CSS values.
128 ! Permit underscores in font families
129 ! Support for page-break-* CSS3 properties when proprietary properties
131 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
132 SGML excludes checking. If HTML Purifier is removing too much text
133 and you don't care about full standards compliance, try setting this to
135 - Use prepend for SPL autoloading on PHP 5.3 and later.
136 - Fix bug with nofollow transform when pre-existing rel exists.
137 - Fix bug where background:url() always gets lower-cased
138 (but not background-image:url())
139 - Fix bug with non lower-case color names in HTML
140 - Fix bug where data URI validation doesn't remove temporary files.
141 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
142 - Don't remove certain empty tags on RemoveEmpty.
144 4.4.0, released 2012-01-18
145 # Removed PEARSax3 handler.
146 # URI.Munge now munges URIs inside the same host that go from https
147 to http. Reported by Neike Taika-Tessaro.
148 # Core.EscapeNonASCIICharacters now always transforms entities to
149 entities, even if target encoding is UTF-8.
150 # Tighten up selector validation in ExtractStyleBlocks.
151 Non-syntactically valid selectors are now rejected, along with
152 some of the more obscure ones such as attribute selectors, the
153 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
154 ID and class selectors now work properly with the relevant
155 configuration attributes. Also, mute errors when parsing CSS
156 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
157 ! Added support for 'scope' attribute on tables.
158 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
159 ! Properly handle sub-lists directly nested inside of lists in
160 a standards compliant way, by moving them into the preceding <li>
161 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
162 limited allowed comments in untrusted situations.
163 ! Implement iframes, and allow them to be used in untrusted mode with
164 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
165 <brad.froehle@gmail.com> for submitting an initial version of the patch.
166 ! The Forms module now works properly for transitional doctypes.
167 ! Added support for internationalized domain names. You need the PEAR
168 Net_IDNA2 module to be in your path; if it is installed, ensure the
169 class can be loaded and then set %Core.EnableIDNA to true.
170 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
171 <yramirez-htmlpurifier@adicio.com> for reporting.
172 - Explicitly initialize anonModule variable to null.
173 - Do not duplicate nofollow if already present. Thanks 178
175 - Do not add nofollow if hostname matches our current host. Thanks 178
176 for reporting, and Neike Taika-Tessaro for helping diagnose.
177 - Do not unset parser variable; this fixes intermittent serialization
178 problems. Thanks Neike Taika-Tessaro for reporting, bill
179 <10010tiger@gmail.com> for diagnosing.
180 - Fix iconv truncation bug, where non-UTF-8 target encodings see
181 output truncated after around 8000 characters. Thanks Jörg Ludwig
182 <joerg.ludwig@iserv.eu> for reporting.
183 - Fix broken table content model for XHTML1.1 (and also earlier
184 versions, although the W3C validator doesn't catch those violations).
185 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
187 4.3.0, released 2011-03-27
188 # Fixed broken caching of customized raw definitions, but requires an
189 API change. The old API still works but will emit a warning,
190 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
191 for how to upgrade your code.
192 # Protect against Internet Explorer innerHTML behavior by specially
193 treating attributes with backticks but no angled brackets, quotes or
194 spaces. This constitutes a slight semantic change, which can be
195 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
197 # Protect against cssText/innerHTML by restricting allowed characters
198 used in fonts further than mandated by the specification and encoding
199 some extra special characters in URLs. Reported by Neike
200 Taika-Tessaro and Mario Heiderich.
201 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
202 ! More types of SPL autoloaders allowed on later versions of PHP.
203 ! Implementations for position, top, left, right, bottom, z-index
204 when %CSS.Trusted is on.
205 ! Add %Cache.SerializerPermissions option for custom serializer
206 directory/file permissions
207 ! Fix longstanding bug in Flash support for non-IE browsers, and
208 allow more wmode attributes.
209 ! Add %CSS.AllowedFonts to restrict permissible font names.
210 - Switch to an iterative traversal of the DOM, which prevents us
211 from running out of stack space for deeply nested documents.
212 Thanks Maxim Krizhanovsky for contributing a patch.
213 - Make removal of conditional IE comments ungreedy; thanks Bernd
215 - Escape CDATA before removing Internet Explorer comments.
216 - Fix removal of id attributes under certain conditions by ensuring
217 armor attributes are preserved when recreating tags.
218 - Check if schema.ser was corrupted.
219 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
220 This safety check is only done for HTMLPurifier.auto.php; if you
221 are using standalone or the specialized includes files, you're
222 expected to know what you're doing.
223 - Stop repeatedly writing the cache file after I'm done customizing a
224 raw definition. Reported by ajh.
225 - Switch to using require_once in the Bootstrap to work around bad
226 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
227 - Fix URI handling when hostname is missing but scheme is present.
228 Reported by Neike Taika-Tessaro.
229 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
231 - Fix harmless notice from indexing into empty string. Thanks Matthijs
232 Kooijman <matthijs@stdin.nl> for reporting.
233 - Don't autoclose no parent elements are able to support the element
234 that triggered the autoclose. In particular fixes strange behavior
235 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
236 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
238 4.2.0, released 2010-09-15
239 ! Added %Core.RemoveProcessingInstructions, which lets you remove
240 <? ... ?> statements.
241 ! Added %URI.DisableResources functionality; the directive originally
242 did nothing. Thanks David Rothstein for reporting.
243 ! Add documentation about configuration directive types.
244 ! Add %CSS.ForbiddenProperties configuration directive.
245 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
246 to utilize full-screen mode.
247 ! Add optional support for the <code>file</code> URI scheme, enable
248 by explicitly setting %URI.AllowedSchemes.
249 ! Add %Core.NormalizeNewlines options to allow turning off newline
251 - Fix improper handling of Internet Explorer conditional comments
252 by parser. Thanks zmonteca for reporting.
253 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
254 Thanks sidepodcast for the fix.
255 - Warn if an element is allowed, but an attribute it requires is
258 4.1.1, released 2010-05-31
259 - Fix undefined index warnings in maintenance scripts.
260 - Fix bug in DirectLex for parsing elements with a single attribute
262 - Rewrite CSS output logic for font-family and url(). Thanks Mario
263 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
264 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
265 - Emit an error for CollectErrors if a body is extracted
266 - Fix bug where in background-position for center keyword handling.
267 - Fix infinite loop when a wrapper element is inserted in a context
268 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
269 - Remove +x bit and shebang from index.php; only supported mode is to
270 explicitly call it with php.
271 - Make test script less chatty when log_errors is on.
273 4.1.0, released 2010-04-26
274 ! Support proprietary height attribute on table element
275 ! Support YouTube slideshows that contain /cp/ in their URL.
276 ! Support for data: URI scheme; not enabled by default, add it using
278 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
279 ! Support for Internet Explorer compatibility with %HTML.SafeObject
280 using %Output.FlashCompat.
281 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
282 - Always quote the insides of url(...) in CSS.
284 4.0.0, released 2009-07-07
285 # APIs for ConfigSchema subsystem have substantially changed. See
286 docs/dev-config-bcbreaks.txt for details; in essence, anything that
287 had both namespace and directive now have a single unified key.
288 # Some configuration directives were renamed, specifically:
289 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
290 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
291 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
292 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
293 As usual, the old directive names will still work, but will throw E_NOTICE
295 # The allowed values for class have been relaxed to allow all of CDATA for
296 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
297 %Attr.ClassUseCDATA to false.
298 # Instead of appending the content model to an old content model, a blank
299 element will replace the old content model. You can use #SUPER to get
300 the old content model.
301 ! More robust support for name="" and id=""
302 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
303 configuration, and have changes to that configuration be propagated
304 to all of its children.
305 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
306 the name attribute when set. Use with care. Thanks Ian Cook for
308 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
309 tags that contain non-breaking spaces as well other whitespace. You
310 can also modify which tags should have maintained with
311 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
312 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
313 classes users can use to a specified finite set of classes, and
314 %Attr.ForbiddenClasses, which is the logical inverse.
315 ! You can now maintain your own configuration schema directories by
316 creating a config-schema.php file or passing an extra argument. Check
317 docs/dev-config-schema.html for more details.
318 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
319 your configuration in a compact serial file, which you can unserialize
320 and use directly without having to go through the overhead of setup.
321 - Fix bug where URIDefinition would not get cleared if it's directives got
323 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
324 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
325 - Make %URI.Munge not apply to links that have the same host as your host.
326 - Prevent stray </body> tag from truncating output, if a second </body>
328 . Created script maintenance/rename-config.php for renaming a configuration
329 directive while maintaining its alias. This script does not change source code.
330 . Implement namespace locking for definition construction, to prevent
331 bugs where a directive is used for definition construction but is not
332 used to construct the cache hash.
334 3.3.0, released 2009-02-16
335 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
336 ! Implement generic property list classess
337 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
338 does not do the "right thing" with characters not supported in the output
340 - Spellcheck UTF-8: The Secret To Character Encoding
341 - Fix improper removal of the contents of elements with only whitespace. Thanks
342 Eric Wald for reporting.
343 - Fix broken test suite in versions of PHP without spl_autoload_register()
344 - Fix degenerate case with YouTube filter involving double hyphens.
345 Thanks Pierre Attar for reporting.
346 - Fix YouTube rendering problem on certain versions of Firefox.
347 - Fix CSSDefinition Printer problems with decorators
348 - Add text parameter to unit tests, forces text output
349 . Add verbose mode to command line test runner, use (--verbose)
350 . Turn on unit tests for UnitConverter
351 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
352 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
354 . Removed trailing whitespace from all text files, see
355 remote-trailing-whitespace.php maintenance script.
356 . Convert configuration to use property list backend.
358 3.2.0, released 2008-10-31
359 # Using %Core.CollectErrors forces line number/column tracking on, whereas
360 previously you could theoretically turn it off.
361 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
362 use handleEnd() instead.
363 ! %Output.AttrSort for when you need your attributes in alphabetical order to
364 deal with a bug in FCKEditor. Requested by frank farmer.
365 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
366 ! Proper support for name attribute. It is now allowed and equivalent to the id
367 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
368 is heavy (for all doctypes).
369 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
370 use on hand-written HTML.
371 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
372 the strategy to be used, standalone, on untrusted input.
373 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
374 processing of left angled brackets in smileys and other whatnot.
375 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
376 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
377 the --only-phpt parameter, although for backwards-compatibility the flag
379 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
380 Users who are not performing inbound filtering, this may seem a little
381 useless, but as a bonus, the test suite and handling of edge cases is also
383 ! Experimental implementation of forms for %HTML.Trusted
384 ! Track column numbers when maintain line numbers is on
385 ! Proprietary 'background' attribute on table-related elements converted into
386 corresponding CSS. Thanks Fusemail for sponsoring this feature!
387 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
389 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
390 time of operation varies slightly from notifyEnd() as *all* end tokens are
391 processed by the injector before they are subject to the well-formedness rules.
392 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
393 basename of image when not present.
394 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
395 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
396 the other involving an undefined $is_folder error.
397 - Throw error when %Core.Encoding is set to a spurious value. Previously,
398 this errored silently and returned false.
399 - Redirected stderr to stdout for flush error output.
400 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
402 - Do not re-munge URL if the output URL has the same host as the input URL.
404 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
405 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
406 - Fix bug with inline elements in blockquotes conflicting with strict doctype
407 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
408 - Fix bug where dots and double-dots in absolute URLs without hostname were
409 not collapsed by URIFilter_MakeAbsolute.
410 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
411 by reordering their addition.
412 - Will now throw exception on many error conditions during lexer creation; also
413 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
415 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
416 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
417 Reported by David Morton.
418 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
419 for more interesting filter-backtracking
420 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
421 index to reprocess tokens.
422 . StringHashParser now allows for multiline sections with "empty" content;
423 previously the section would remain undefined.
424 . Added --quick option to multitest.php, which tests only the most recent
425 release for each series.
426 . Added --distro option to multitest.php, which accepts either 'normal' or
427 'standalone'. This supercedes --exclude-normal and --exclude-standalone
429 3.1.1, released 2008-06-19
430 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
431 In order to enable this again, please set %URI.MungeResources to true.
432 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
433 and height/width HTML with %HTML.MaxImgLength.
434 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
435 for sponsoring this feature. Check out the corresponding documentation
436 for details. (Att Nightly testers: The API for this feature changed before
437 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
438 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
439 ! Implemented post URI filtering. Set member variable $post to true to set
441 ! Allow modules to define injectors via $info_injector. Injectors are
442 automatically disabled if injector's needed elements are not found.
443 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
444 Thanks Chris for sponsoring. If you've been using ad hoc code from the
445 forums, PLEASE use this instead.
446 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
447 embedded, tag name, attribute name, CSS property name). See %URI.Munge
448 for more details. Requested by Jochem Blok.
449 - Disable percent height/width attributes for img.
450 - AttrValidator operations are now atomic; updates to attributes are not
451 manifest in token until end of operations. This prevents naughty internal
452 code from directly modifying CurrentToken when they're not supposed to.
453 This semantics change was requested by frank farmer.
454 - Percent encoding checks enabled for URI query and fragment
455 - Fix stray backslashes in font-family; CSS Unicode character escapes are
456 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
458 - Improve parseCDATA algorithm to take into account newline normalization
459 - Account for browser confusion between Yen character and backslash in
460 Shift_JIS encoding. This fix generalizes to any other encoding which is not
461 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
462 - Fix missing configuration parameter in Generator calls. Thanks vs for the
464 - Improved adherence to Unicode by checking for non-character codepoints.
465 Thanks Geoffrey Sneddon for reporting. This may result in degraded
466 performance for extremely large inputs.
467 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
469 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
470 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
472 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
473 to __construct($min, $max). __construct(true) is equivalent to
475 . Added HTMLPurifier_AttrDef_Switch class
476 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
477 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
478 get this called with the configuration object. All modules now
479 use this rather than __construct(), although legacy code using constructors
480 will still work--the new format, however, lets modules access the
481 configuration object for HTML namespace dependant tweaks.
482 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
483 . ConfigSchema data-structure heavily optimized; on average it uses a third
484 the memory it did previously. The interface has changed accordingly,
485 consult changes to HTMLPurifier_Config for details.
486 . Variable parsing types now are magic integers instead of strings
487 . Added benchmark for ConfigSchema
488 . HTMLPurifier_Generator requires $config and $context parameters. If you
489 don't know what they should be, use HTMLPurifier_Config::createDefault()
490 and new HTMLPurifier_Context().
491 . Printers now properly distinguish between output configuration, and
492 target configuration. This is not applicable to scripts using
493 the Printers for HTML Purifier related tasks.
494 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
495 fatal errors will ensue.
496 . URIFilter->prepare can return false in order to abort loading of the filter
497 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
498 an external resource.
499 . %URI.Munge functionality factored out into a post-filter class.
500 . Added CurrentCSSProperty context variable during CSS validation
502 3.1.0, released 2008-05-18
503 # Unnecessary references to objects (vestiges of PHP4) removed from method
504 signatures. The following methods do not need references when assigning from
505 them and will result in E_STRICT errors if you try:
506 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
507 + HTMLPurifier_ConfigSchema::instance()
508 + HTMLPurifier_DefinitionCacheFactory::instance()
509 + HTMLPurifier_DefinitionCacheFactory->create()
510 + HTMLPurifier_DoctypeRegistry->register()
511 + HTMLPurifier_DoctypeRegistry->get()
512 + HTMLPurifier_HTMLModule->addElement()
513 + HTMLPurifier_HTMLModule->addBlankElement()
514 + HTMLPurifier_LanguageFactory::instance()
515 # Printer_ConfigForm's get*() functions were static-ified
516 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
517 form of tag@attr, NOT tag.attr (which will throw an error and won't do
518 anything). This is for forwards compatibility with XML; you'd do best
519 to migrate an %HTML.AllowedAttributes directives to this syntax too.
520 ! Allow index to be false for config from form creation
521 ! Added HTMLPurifier::VERSION constant
522 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
523 and allows for version numbers like "3.1.0-dev".
524 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
525 ! HTML Purifier's URI handling is a lot more robust, with much stricter
526 validation checks and better percent encoding handling. Thanks Gareth Heyes
527 for indicating security vulnerabilities from lax percent encoding.
528 ! Bootstrap autoloader deals more robustly with classes that don't exist,
529 preventing class_exists($class, true) from barfing.
530 - InterchangeBuilder now alphabetizes its lists
531 - Validation error in configdoc output fixed
532 - Iconv and other encoding errors muted even with custom error handlers that
533 do not honor error_reporting
534 - Add protection against imagecrash attack with CSS height/width
535 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
536 - Fixed and revamped broken ConfigForm smoketest
537 - Bug with bool/null fields in Printer_ConfigForm fixed
538 - Bug with global forbidden attributes fixed
539 - Improved error messages for allowed and forbidden HTML elements and attributes
540 - Missing (or null) in configdoc documentation restored
541 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
542 of DOM), HTML Purifier punts to DirectLex
543 - Fatal error with unserialization of ScriptRequired
544 - Created directories are now chmod'ed properly
545 - Fixed bug with fallback languages in LanguageFactory
546 - Standalone testing setup properly with autoload
547 . Out-of-date documentation revised
548 . UTF-8 encoding check optimization as suggested by Diego
549 . HTMLPurifier_Error removed in favor of exceptions
550 . More copy() function removed; should use clone instead
551 . More extensive unit tests for HTMLDefinition
552 . assertPurification moved to central harness
553 . HTMLPurifier_Generator accepts $config and $context parameters during
554 instantiation, not runtime
555 . Double-quotes outside of attribute values are now unescaped
557 3.1.0rc1, released 2008-04-22
558 # Autoload support added. Internal require_once's removed in favor of an
559 explicit require list or autoloading. To use HTML Purifier,
560 you must now either use HTMLPurifier.auto.php
561 or HTMLPurifier.includes.php; setting the include path and including
562 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
563 as well to register our autoload handler (or modify your autoload function
564 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
565 HTMLPurifier.safe-includes.php for a less performance friendly but more
566 user-friendly library load.
567 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
568 information is stored in the ConfigSchema directory, and the
569 maintenance/generate-schema-cache.php generates the schema.ser file, which
570 is now instantiated. Support for userland schema changes coming soon!
571 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
572 alias; to get rid of these errors just modify your configuration to use
573 the new directive name.
574 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
575 enabled using %Filter.$filter_name or by setting your own filters using
577 # Directive-level safety properties superceded in favor of module-level
578 safety. Internal method HTMLModule->addElement() has changed, although
579 the externally visible HTMLDefinition->addElement has *not* changed.
580 ! Extra utility classes for testing and non-library operations can
581 be found in extras/. Specifically, these are FSTools and ConfigDoc.
582 You may find a use for these in your own project, but right now they
583 are highly experimental and volatile.
584 ! Integration with PHPT allows for automated smoketests
585 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
586 by Chris. You can enable them with %HTML.Proprietary if your client
588 ! Support for !important CSS cascade modifier. By default, this will be stripped
589 from CSS, but you can enable it using %CSS.AllowImportant
590 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
592 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
593 Developer error (not enduser error) can cause these to be triggered.
594 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
595 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
596 mucking around with HTMLPurifier_CSSDefinition
597 ! ConfigDoc output has been enhanced with version and deprecation info.
598 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
599 - Autoclose now operates iteratively, i.e. <span><span><div> now has
600 both span tags closed.
601 - Various HTMLPurifier_Config convenience functions now accept another parameter
602 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
604 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
605 - Fix bug in ExtractStyleBlocks with comments in style tags
606 - Fix bug in comment parsing for DirectLex
607 - Flush output now displayed when in command line mode for unit tester
608 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
609 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
610 on the same element without emitting errors.
611 - Fixed fatal error in PH5P lexer with invalid tag names
612 . Plugins now get their own changelogs according to project conventions.
613 . Convert tokens to use instanceof, reducing memory footprint and
614 improving comparison speed.
615 . Dry runs now supported in SimpleTest; testing facilities improved
616 . Bootstrap class added for handling autoloading functionality
617 . Implemented recursive glob at FSTools->globr
618 . ConfigSchema now has instance methods for all corresponding define*
620 . A couple of new historical maintenance scripts were added.
621 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
622 . tests/index.php can now be run from any directory.
623 . HTMLPurifier_Token subclasses split into seperate files
624 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
625 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
626 . New --php=php flag added, allows PHP executable to be specified (command
628 . htmlpurifier_add_test() preferred method to translate test files in to
629 classes, because it handles PHPT files too.
630 . Debugger class is deprecated and will be removed soon.
631 . Command line argument parsing for testing scripts revamped, now --opt value
633 . Smoketests now cleanup after magic quotes
634 . Generator now can output comments (however, comments are still stripped
635 from HTML Purifier output)
636 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
637 HTMLPurifier_VarParser->parse()
638 . Integers auto-cast into float type by VarParser.
639 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
640 during cache generation
641 . Reordered script calls in maintenance/flush.php
642 . Command line scripts now honor exit codes
643 . When --flush fails in unit testers, abort tests and print message
644 . Improved documentation in docs/dev-flush.html about the maintenance scripts
645 . copy() methods removed in favor of clone keyword
647 3.0.0, released 2008-01-06
648 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
649 until PHP 4 is completely deprecated, but no new features will be added
651 + Visibility declarations added
652 + Constructor methods renamed to __construct()
653 + PHP4 reference cruft removed (in progress)
654 ! CSS properties are now case-insensitive
655 ! DefinitionCacheFactory now can register new implementations
656 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
657 documents and cleaning their contents up. Requires the CSSTidy library
658 <http://csstidy.sourceforge.net/>. You can access the blocks with the
659 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
660 The output CSS can also be "scoped" for a specific element, use:
661 %Filter.ExtractStyleBlocksScope
662 ! Experimental support for some proprietary CSS attributes allowed:
663 opacity (and all of the browser-specific equivalents) and scrollbar colors.
664 Enable by setting %CSS.Proprietary to true.
665 - Colors missing # but in hex form will be corrected
666 - CSS Number algorithm improved
667 - Unit testing and multi-testing now on steroids: command lines,
668 XML output, and other goodies now added.
669 . Unit tests for Injector improved
671 + HTMLPurifier_AttrDef_CSS_AlphaValue
672 + HTMLPurifier_AttrDef_CSS_Filter
673 . Multitest now has a file docblock
675 2.1.3, released 2007-11-05
676 ! tests/multitest.php allows you to test multiple versions by running
677 tests/index.php through multiple interpreters using `phpv` shell
678 script (you must provide this script!)
679 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
681 - Injector algorithm further refined: off-by-one error regarding skip
682 counts for dormant injectors fixed
683 - Corrective blockquote definition now enabled for HTML 4.01 Strict
684 - Fatal error when <img> tag (or any other element with required attributes)
685 has 'id' attribute fixed, thanks NykO18 for reporting
686 - Fix warning emitted when a non-supported URI scheme is passed to the
687 MakeAbsolute URIFilter, thanks NykO18 (again)
688 - Further refine AutoParagraph injector. Behavior inside of elements
689 allowing paragraph tags clarified: only inline content delimeted by
690 double newlines (not block elements) are paragraphed.
691 - Buggy treatment of end tags of elements that have required attributes
692 fixed (does not manifest on default tag-set)
693 - Spurious internal content reorganization error suppressed
694 - HTMLDefinition->addElement now returns a reference to the created
695 element object, as implied by the documentation
696 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
697 - Fix a theoretical class of infinite loops from DirectLex reported
699 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
701 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
702 HTMLDefinition errors, this may indicate problems with error-collecting
704 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
705 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
706 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
707 to better communicate its purpose
708 . Error unit tests can now specify the expectation of no errors. Future
709 iterations of the harness will be extremely strict about what errors
711 . Extend Injector hooks to allow for more powerful injector routines
712 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
714 . Doxygen configuration file updated, with minor improvements
715 . Test runner now checks for similarly named files in conf/ directory too.
716 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
718 . Maintenance script for generating PH5P patch added, original PH5P source
719 file also added under version control
720 . Full unit test runner script title made more descriptive with PHP version
721 . Updated INSTALL file to state that 4.3.7 is the earliest version we
724 2.1.2, released 2007-09-03
725 ! Implemented Object module for trusted users
726 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
728 require_once 'HTMLPurifier/Lexer/PH5P.php';
729 $config->set('Core', 'LexerImpl', 'PH5P');
730 Note that this Lexer introduces some classes not in the HTMLPurifier
731 namespace. Also, this is PHP5 only.
732 ! CSS property border-spacing implemented
733 - Fix non-visible parsing error in DirectLex with empty tags that have
734 slashes inside attribute values.
735 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
736 accepted as valid CSS. Usually non-visible, because this styling is the
737 default for tables in most browsers. Thanks Brett Zamir for pointing
739 - Fix validation errors in configuration form
740 - Hammer out a bunch of edge-case bugs in the standalone distribution
741 - Inclusion reflection removed from URISchemeRegistry; you must manually
742 include any new schema files you wish to use
743 - Numerous typo fixes in documentation thanks to Brett Zamir
744 . Unit test refactoring for one logical test per test function
745 . Config and context parameters in ComplexHarness deprecated: instead, edit
746 the $config and $context member variables
747 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
748 really make a difference, but is good for completeness sake
749 . merge-library.php script refactored for greater code reusability and
752 2.1.1, released 2007-08-04
753 - Fix show-stopper bug in %URI.MakeAbsolute functionality
754 - Fix PHP4 syntax error in standalone version
755 . Add prefix directory to include path for standalone, this prevents
756 other installations from clobbering the standalone's URI schemes
757 . Single test methods can be invoked by prefixing with __only
759 2.1.0, released 2007-08-02
760 # flush-htmldefinition-cache.php superseded in favor of a generic
761 flush-definition-cache.php script, you can clear a specific cache
762 by passing its name as a parameter to the script
763 ! Phorum mod implemented for HTML Purifier
764 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
765 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
766 for PHP4 (DirectLex).
767 ! Standalone file now available, which greatly reduces the amount of
768 includes (although there are still a few files that reside in the
770 ! Relative URIs can now be transformed into their absolute equivalents
771 using %URI.Base and %URI.MakeAbsolute
772 ! Ruby implemented for XHTML 1.1
773 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
775 ! UTF-8 font names now supported in CSS
776 - AutoFormatters emit friendly error messages if tags or attributes they
778 - ConfigForm's compactification of directive names is now configurable
779 - AutoParagraph autoformatter algorithm refined after field-testing
780 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
782 - Contents of <style> tags removed by default when tags are removed
783 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
784 for output cache invalidation
785 . ConfigForm printer now can retrieve CSS and JS files as strings, in
786 case HTML Purifier's directory is not publically accessible
787 . Introduce new text/itext configuration directive values: these represent
788 longer strings that would be more appropriately edited with a textarea
789 . Allow newlines to act as separators for lists, hashes, lookups and
791 . ConfigForm generates textareas instead of text inputs for lists, hashes,
792 lookups, text and itext fields
793 . Hidden element content removal genericized: %Core.HiddenElements can
794 be used to customize this behavior, by default <script> and <style> are
796 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
797 . Custom ChildDef added to default include list
798 . URIScheme reflection improved: will not attempt to include file if class
799 already exists. May clobber autoload, so I need to keep an eye on it
800 . ConfigSchema heavily optimized, will only collect information and validate
801 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
802 . AttrDef_URI unit tests and implementation refactored
803 . benchmarks/ directory now protected from public view with .htaccess file;
804 run the tests via command line
805 . URI scheme is munged off if there is no authority and the scheme is the
807 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
808 . Interface for URIScheme changed
809 . Generic URI object to hold components of URI added, most systems involved
810 in URI validation have been migrated to use it
811 . Custom filtering for URIs factored out to URIDefinition interface for
812 maximum extensibility
814 2.0.1, released 2007-06-27
815 ! Tag auto-closing now based on a ChildDef heuristic rather than a
816 manually set auto_close array; some behavior may change
817 ! Experimental AutoFormat functionality added: auto-paragraph and
818 linkify your HTML input by setting %AutoFormat.AutoParagraph and
819 %AutoFormat.Linkify to true
820 ! Newlines normalized internally, and then converted back to the
821 value of PHP_EOL. If this is not desired, set your newline format
822 using %Output.Newline.
823 ! Beta error collection, messages are implemented for the most generic
824 cases involving Lexing or Strategies
825 - Clean up special case code for <script> tags
826 - Reorder includes for DefinitionCache decorators, fixes a possible
828 - Fixed bug where manually modified definitions were not saved via cache
829 (mostly harmless, except for the fact that it would be a little slower)
830 - Configuration objects with different serials do not clobber each
831 others when revision numbers are unequal
832 - Improve Serializer DefinitionCache directory permissions checks
833 - DefinitionCache no longer throws errors when it encounters old
834 serial files that do not conform to the current style
835 - Stray xmlns attributes removed from configuration documentation
836 - configForm.php smoketest no longer has XSS vulnerability due to
837 unescaped print_r output
838 - Printer adheres to configuration's directives on output format
839 - Fix improperly named form field in ConfigForm printer
840 . Rewire some test-cases to swallow errors rather than expect them
841 . HTMLDefinition printer updated with some of the new attributes
842 . DefinitionCache keys reordered to reflect precedence: version number,
843 hash, then revision number
844 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
845 . Interlinking in configuration documentation added using
846 Injector_PurifierLinkify
847 . Directives now keep track of aliases to themselves
848 . Error collector now requires a severity to be passed, use PHP's internal
849 error constants for this
850 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
851 much easier selective embedding of configuration values
852 . Doctype objects now accept public and system DTD identifiers
853 . %HTML.Doctype is now constrained by specific values, to specify a custom
854 doctype use new %HTML.CustomDoctype
855 . ConfigForm truncates long directives to keep the form small, and does
856 not re-output namespaces
858 2.0.0, released 2007-06-20
859 # Completely refactored HTMLModuleManager, decentralizing safety
861 # Transform modules changed to Tidy modules, which offer more flexibility
862 and better modularization
863 # Configuration object now finalizes itself when a read operation is
864 performed on it, ensuring that its internal state stays consistent.
865 To revert this behavior, you can set the $autoFinalize member variable
866 off, but it's not recommended.
867 # New compact syntax for AttrDef objects that can be used to instantiate
868 new objects via make()
869 # Definitions (esp. HTMLDefinition) are now cached for a significant
870 performance boost. You can disable caching by setting %Core.DefinitionCache
871 to null. You CANNOT edit raw definitions without setting the corresponding
872 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
873 # Contents between <script> tags are now completely removed if <script>
875 # Prototype-declarations for Lexer removed in favor of configuration
876 determination of Lexer implementations.
877 ! HTML Purifier now works in PHP 4.3.2.
878 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
880 ! Configuration directives that accept hashes now allow new string
881 format: key1:value1,key2:value2
882 ! ConfigDoc now factored into OOP design
883 ! All deprecated elements now natively supported
884 ! Implement TinyMCE styled whitelist specification format in
886 ! Config object gives more friendly error messages when things go wrong
887 ! Advanced API implemented: easy functions for creating elements (addElement)
888 and attributes (addAttribute) on HTMLDefinition
889 ! Add native support for required attributes
890 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
891 - DOMLex will not emit errors when a custom error handler that does not
892 honor error_reporting is used
893 - StrictBlockquote child definition refrains from wrapping whitespace
895 - Bug resulting from tag transforms to non-allowed elements fixed
896 - ChildDef_Custom's regex generation has been improved, removing several
898 . Unit test for ElementDef created, ElementDef behavior modified to
900 . Added convenience functions for HTMLModule constructors
901 . AttrTypes now has accessor functions that should be used instead
902 of directly manipulating info
903 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
904 . Add extra protection in AttrDef_URI against phantom Schemes
905 . Doctype object added to HTMLDefinition which describes certain aspects
906 of the operational document type
907 . Lexer is now pre-emptively included, with a conditional include for the
909 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
910 . DirectLex can now track line-numbers
911 . Preliminary error collector is in place, although no code actually reports
913 . Factor out most of ValidateAttributes to new AttrValidator class
915 1.6.1, released 2007-05-05
916 ! Support for more deprecated attributes via transformations:
917 + hspace and vspace in img
918 + size and noshade in hr
921 + align in caption, table, img and hr
922 + type in ul, ol and li
923 ! DirectLex now preserves text in which a < bracket is followed by
924 a non-alphanumeric character. This means that certain emoticons
926 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
927 images will hang around with an empty src
928 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
930 ! CSS property white-space now allows nowrap (supported in all modern
931 browsers) but not others (which have spotty browser implementations)
932 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
933 lang is now moved over to xml:lang.
934 ! Attribute transformation smoketest available at smoketests/attrTransform.php
935 ! Transformation of font's size attribute now handles super-large numbers
936 - Possibly fatal bug with __autoload() fixed in module manager
937 - Invert HTMLModuleManager->addModule() processing order to check
938 prefixes first and then the literal module
939 - Empty strings get converted to empty arrays instead of arrays with
940 an empty string in them.
941 - Merging in attribute lists now works.
942 . Demo script removed: it has been added to the website's repository
943 . Basic.php script modified to work out of the box
944 . Refactor AttrTransform classes to reduce duplication
945 . AttrTransform_TextAlign axed in favor of a more general
946 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
947 see how the new equivalent is implemented
948 . Unit tests now use exclusively assertIdentical
950 1.6.0, released 2007-04-01
951 ! Support for most common deprecated attributes via transformations:
952 + bgcolor in td, th, tr and table
955 + width in td, th and hr
957 ! Support for CSS attribute 'height' added
958 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
959 and %Attr.AllowedRev to activate
960 - You can define ID blacklists using regular expressions via
961 %Attr.IDBlacklistRegexp
962 - Error messages are emitted when you attempt to "allow" elements or
963 attributes that HTML Purifier does not support
964 - Fix segfault in unit test. The problem is not very reproduceable and
965 I don't know what causes it, but a six line patch fixed it.
967 1.5.0, released 2007-03-23
968 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
969 doesn't actually do anything yet, but keep your eyes peeled.
970 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
971 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
972 I am loathe to release beta quality APIs, but this is exactly that;
973 don't use the internal interfaces if you're not willing to do migration
975 - Allow 'x' subtag in language codes
976 - Fixed buggy chameleon-support for ins and del
977 . Added support for IDREF attributes (i.e. for)
978 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
979 . Removed context variable ParentType, replaced with IsInline, which
980 is false when you're not inline and an integer of the parent that
981 caused you to become inline when you are (so possibly zero)
982 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
983 and HTMLDefinition->content_sets
984 . StrictBlockquote now reports what elements its supposed to allow,
985 rather than what it does allow
986 . Removed HTMLDefinition->info_flow_elements in favor of
987 HTMLDefinition->content_sets['Flow']
988 . Removed redundant "exclusionary" definitions from DTD roster
989 . StrictBlockquote now requires a construction parameter as if it
990 were an Required ChildDef, this is the "real" set of allowed elements
991 . AttrDef partitioned into HTML, CSS and URI segments
992 . Modify Youtube filter regexp to be multiline
993 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
994 some edge cases where a DOMDocument class exists in a PHP4 environment
995 due to DOM XML extension.
997 1.4.1, released 2007-01-21
998 ! docs/enduser-youtube.html updated according to new functionality
999 - YouTube IDs can have underscores and dashes
1001 1.4.0, released 2007-01-21
1002 ! Implemented list-style-image, URIs now allowed in list-style
1003 ! Implemented background-image, background-repeat, background-attachment
1004 and background-position CSS properties. Shorthand property background
1005 supports all of these properties.
1006 ! Configuration documentation looks nicer
1007 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
1008 characters while %Core.Encoding is set to a non-UTF-8 encoding.
1009 ! Support for configuration directive aliases added
1010 ! Config object can now be instantiated from ini files
1011 ! YouTube preservation code added to the core, with two lines of code
1012 you can add it as a filter to your code. See smoketests/preserveYouTube.php
1014 ! Moved SLOW to docs/enduser-slow.html and added code examples
1015 - Replaced version check with functionality check for DOM (thanks Stephen
1017 . Added smoketest 'all.php', which loads all other smoketests via frames
1018 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
1019 . Added convenient single test selector form on test runner
1021 1.3.2, released 2006-12-25
1022 ! HTMLPurifier object now accepts configuration arrays, no need to manually
1023 instantiate a configuration object
1024 ! Context object now accessible to outside
1025 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
1026 also corresponding smoketest preserveYouTube.php.
1027 ! Added purifyArray(), which takes a list of HTML and purifies it all
1028 ! Added static member variable $version to HTML Purifier with PHP-compatible
1029 version number string.
1030 - Fixed fatal error thrown by upper-cased language attributes
1031 - printDefinition.php: added labels, added better clarification
1032 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
1033 a HTMLPurifier_Config object.
1035 1.3.1, released 2006-12-06
1036 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
1037 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
1038 (thanks to .mario for reporting this)
1039 . Standardized all attribute handling variables to attr, made it plural
1041 1.3.0, released 2006-11-26
1042 # Invalid images are now removed, rather than replaced with a dud
1043 <img src="" alt="Invalid image" />. Previous behavior can be restored
1044 with new directive %Core.RemoveInvalidImg set to false.
1045 ! (X)HTML Strict now supported
1046 + Transparently handles inline elements in block context (blockquote)
1047 ! Added GET method to demo for easier validation, added 50kb max input size
1048 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
1049 ! New directive %HTML.Parent, allows you to only allow inline content
1050 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1051 users narrow the set of allowed tags
1052 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1053 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1054 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1055 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1056 service to avoid PageRank leaks or warn users that they are exiting your site.
1057 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1058 the configuration settings and see how the internal rules are affected.
1059 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1060 xssAttacks.php smoketest updated accordingly.
1061 - Added missing type to ChildDef_Chameleon
1062 - Remove Tidy option from demo if there is not Tidy available
1063 . ChildDef_Required guards against empty tags
1064 . Lookup table HTMLDefinition->info_flow_elements added
1065 . Added peace-of-mind variable initialization to Strategy_FixNesting
1066 . Added HTMLPurifier->info_parent_def, parent child processing made special
1067 . Added internal documents briefly summarizing future progression of HTML
1068 . HTMLPurifier_Config->getBatch($namespace) added
1069 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1070 . Refactored ChildDef classes into their own files
1072 1.2.0, released 2006-11-19
1073 # ID attributes now disabled by default. New directives:
1074 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1075 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1076 so that they don't collide with your IDs
1077 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1078 instances of user content on the page
1079 + Profuse documentation on how to use these available in docs/enduser-id.txt
1080 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1081 ! Added percent encoding normalization
1082 ! XSS attacks smoketest given facelift
1083 ! Configuration documentation now has table of contents
1084 ! Added %URI.DisableExternal, which prevents links to external websites. You
1085 can also use %URI.Host to permit absolute linking to subdomains
1086 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1087 - Type variable in HTMLDefinition was not being set properly, fixed
1088 - Documentation updated
1089 + TODO added request Phalanger
1090 + TODO added request Native compression
1091 + TODO added request Remove redundant tags
1092 + TODO added possible plaintext formatter for HTML Purifier documentation
1093 + Updated ConfigDoc TODO
1094 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1095 and AttrDef/Host.php
1096 + Revamped documentation into HTML, along with misc updates
1097 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1098 to retrieve a non-existent variable
1099 . Switched to purify()-wide Context object registry
1100 . Refactored unit tests to minimize duplication
1101 . XSS attack sheet updated
1102 . configdoc.xml now has xml:space attached to default value nodes
1103 . Allow configuration directives to permit null values
1104 . Cleaned up test-cases to remove unnecessary swallowErrors()
1106 1.1.2, released 2006-09-30
1107 ! Add HTMLPurifier.auto.php stub file that configures include_path
1108 - Documentation updated
1109 + INSTALL document rewritten
1110 + TODO added semi-lossy conversion
1111 + API Doxygen docs' file exclusions updated
1112 + Added notes on HTML versus XML attribute whitespace handling
1113 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1114 + Noted that config object's definitions are cached versions
1115 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1116 - ftp:// URIs now have their typecodes checked
1117 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1118 . Line endings standardized throughout project (svn:eol-style standardized)
1119 . Refactored parseData() to general Lexer class
1120 . Tester named "HTML Purifier" not "HTMLPurifier"
1122 1.1.1, released 2006-09-24
1123 ! Configuration option to optionally Tidy up output for indentation to make up
1124 for dropped whitespace by DOMLex (pretty-printing for the entire application
1125 should be done by a page-wide Tidy)
1126 - Various documentation updates
1127 - Fixed parse error in configuration documentation script
1128 - Fixed fatal error in benchmark scripts, slightly augmented
1129 - As far as possible, whitespace is preserved in-between table children
1130 - Sample test-settings.php file included
1132 1.1.0, released 2006-09-16
1133 ! Directive documentation generation using XSLT
1134 ! XHTML can now be turned off, output becomes <br>
1135 - Made URI validator more forgiving: will ignore leading and trailing
1136 quotes, apostrophes and less than or greater than signs.
1137 - Enforce alphanumeric namespace and directive names for configuration.
1138 - Table child definition made more flexible, will fix up poorly ordered elements
1139 . Renamed ConfigDef to ConfigSchema
1141 1.0.1, released 2006-09-04
1142 - Fixed slight bug in DOMLex attribute parsing
1143 - Fixed rejection of case-insensitive configuration values when there is a
1144 set of allowed values. This manifested in %Core.Encoding.
1145 - Fixed rejection of inline style declarations that had lots of extra
1146 space in them. This manifested in TinyMCE.
1148 1.0.0, released 2006-09-01
1149 ! Shorthand CSS properties implemented: font, border, background, list-style
1150 ! Basic color keywords translated into hexadecimal values
1151 ! Table CSS properties implemented
1152 ! Support for charsets other than UTF-8 (defined by iconv)
1153 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1154 - Fixed broken numeric entity conversion
1155 - API documentation completed
1156 . (HTML|CSS)Definition de-singleton-ized
1158 1.0.0beta, released 2006-08-16
1159 ! First public release, most functionality implemented. Notable omissions are:
1160 + Shorthand CSS properties
1161 + Table CSS properties
1162 + Deprecated attribute transformations