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 - When idn_to_ascii is defined, we might accept malformed
17 hostnames. Apply validation to the result in such cases.
18 - Close directory when done in Serializer DefinitionCache (#100)
19 - Deleted some asserts to avoid linters from choking (#97)
20 - Rework Serializer cache behavior to avoid chmod'ing if possible (#32)
21 - Embedded semicolons in strings in CSS are now handled correctly!
22 - We accidentally dropped certain Unicode characters if there was
23 one or more invalid characters. This has been fixed, thanks
24 to mpyw <ryosuke_i_628@yahoo.co.jp>
25 # By default, when a link has a target attribute associated
26 with it, we now also add rel="noopener" in order to
27 prevent the new window from being able to overwrite
28 the original frame. To disable this protection,
29 set %HTML.TargetNoopener to FALSE.
31 4.8.0, released 2016-07-16
32 # By default, when a link has a target attribute associated
33 with it, we now also add rel="noreferrer" in order to
34 prevent the new window from being able to overwrite
35 the original frame. To disable this protection,
36 set %HTML.TargetNoreferrer to FALSE.
37 ! Full PHP 7 compatibility, the test suite is ALL GO.
38 ! %CSS.AllowDuplicates permits duplicate CSS properties.
39 ! Support for 'tel' URIs.
40 ! Partial support for 'border-radius' properties when %CSS.AllowProprietary is true.
41 The slash syntax, i.e., 'border-radius: 2em 1em 4em / 0.5em 3em' is not
43 ! %Attr.ID.HTML5 turns on HTML5-style ID handling.
44 - alt truncation could result in malformed UTF-8 sequence. Don't
45 truncate. Thanks Brandon Farber for reporting.
46 - Linkify regex is smarter, based off of Gruber's regex.
47 - IDNA supported natively on PHP 5.3 and later.
48 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
50 - Minor bounds error fix to squash a PHP 7 notice.
51 - Support non-/tmp temporary directories for data:// validation
52 - Give a better error message when a user attempts to allow
53 ul/ol without allowing li.
54 - On some versions of PHP, the Serializer DefinitionCache could
55 infinite loop when the directory exists but is not listable. (#49)
56 - Don't match for <body> inside comments with
57 %Core.ConvertDocumentToFragment. (#67)
58 - SafeObject is now less case sensitive. (#57)
59 - AutoFormat.RemoveEmpty.Predicate now correctly renders in
62 4.7.0, released 2015-08-04
63 # opacity is now considered a "tricky" CSS property rather than a
65 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
66 an element should be considered "empty" (maybe preserve if it
67 has attributes), and modify iframe support so that the iframe
68 is removed if it is missing a src attribute. Thanks meeva for
70 - Don't truncate upon encountering </div> when using DOMLex. Thanks
71 Myrto Christina for finally convincing me to fix this.
72 - Update YouTube filter for new code.
73 - Fix parsing of rgb() values with spaces in them for 'border'
75 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
78 4.6.0, released 2013-11-30
79 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
80 Please update any verification scripts you may have.
81 # URI parsing algorithm was made more strict, so only prefixes which
82 looks like schemes will actually be schemes. Thanks
83 Michael Gusev <mgusev@sugarcrm.com> for fixing.
84 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
86 ! New directive %Core.AllowHostnameUnderscore which allows underscores
88 - Eliminate quadratic behavior in DOMLex by using a proper queue.
89 Thanks Ole Laursen for noticing this.
90 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
91 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
92 Networks for sponsoring this work.
93 - Made Linkify URL parser a bit less permissive, so that non-breaking
94 spaces and commas are not included as part of URL. Thanks nAS for fixing.
95 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
96 David Hirtz for reporting.
97 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
100 4.5.0, released 2013-02-17
101 # Fix bug where stacked attribute transforms clobber each other;
102 this also means it's no longer possible to override attribute
103 transforms in later modules. No internal code was using this
104 but this may break some clients.
105 # We now use SHA-1 to identify cached definitions, instead of MD5.
106 ! Support display:inline-block
107 ! Support for more white-space CSS values.
108 ! Permit underscores in font families
109 ! Support for page-break-* CSS3 properties when proprietary properties
111 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
112 SGML excludes checking. If HTML Purifier is removing too much text
113 and you don't care about full standards compliance, try setting this to
115 - Use prepend for SPL autoloading on PHP 5.3 and later.
116 - Fix bug with nofollow transform when pre-existing rel exists.
117 - Fix bug where background:url() always gets lower-cased
118 (but not background-image:url())
119 - Fix bug with non lower-case color names in HTML
120 - Fix bug where data URI validation doesn't remove temporary files.
121 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
122 - Don't remove certain empty tags on RemoveEmpty.
124 4.4.0, released 2012-01-18
125 # Removed PEARSax3 handler.
126 # URI.Munge now munges URIs inside the same host that go from https
127 to http. Reported by Neike Taika-Tessaro.
128 # Core.EscapeNonASCIICharacters now always transforms entities to
129 entities, even if target encoding is UTF-8.
130 # Tighten up selector validation in ExtractStyleBlocks.
131 Non-syntactically valid selectors are now rejected, along with
132 some of the more obscure ones such as attribute selectors, the
133 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
134 ID and class selectors now work properly with the relevant
135 configuration attributes. Also, mute errors when parsing CSS
136 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
137 ! Added support for 'scope' attribute on tables.
138 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
139 ! Properly handle sub-lists directly nested inside of lists in
140 a standards compliant way, by moving them into the preceding <li>
141 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
142 limited allowed comments in untrusted situations.
143 ! Implement iframes, and allow them to be used in untrusted mode with
144 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
145 <brad.froehle@gmail.com> for submitting an initial version of the patch.
146 ! The Forms module now works properly for transitional doctypes.
147 ! Added support for internationalized domain names. You need the PEAR
148 Net_IDNA2 module to be in your path; if it is installed, ensure the
149 class can be loaded and then set %Core.EnableIDNA to true.
150 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
151 <yramirez-htmlpurifier@adicio.com> for reporting.
152 - Explicitly initialize anonModule variable to null.
153 - Do not duplicate nofollow if already present. Thanks 178
155 - Do not add nofollow if hostname matches our current host. Thanks 178
156 for reporting, and Neike Taika-Tessaro for helping diagnose.
157 - Do not unset parser variable; this fixes intermittent serialization
158 problems. Thanks Neike Taika-Tessaro for reporting, bill
159 <10010tiger@gmail.com> for diagnosing.
160 - Fix iconv truncation bug, where non-UTF-8 target encodings see
161 output truncated after around 8000 characters. Thanks Jörg Ludwig
162 <joerg.ludwig@iserv.eu> for reporting.
163 - Fix broken table content model for XHTML1.1 (and also earlier
164 versions, although the W3C validator doesn't catch those violations).
165 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
167 4.3.0, released 2011-03-27
168 # Fixed broken caching of customized raw definitions, but requires an
169 API change. The old API still works but will emit a warning,
170 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
171 for how to upgrade your code.
172 # Protect against Internet Explorer innerHTML behavior by specially
173 treating attributes with backticks but no angled brackets, quotes or
174 spaces. This constitutes a slight semantic change, which can be
175 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
177 # Protect against cssText/innerHTML by restricting allowed characters
178 used in fonts further than mandated by the specification and encoding
179 some extra special characters in URLs. Reported by Neike
180 Taika-Tessaro and Mario Heiderich.
181 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
182 ! More types of SPL autoloaders allowed on later versions of PHP.
183 ! Implementations for position, top, left, right, bottom, z-index
184 when %CSS.Trusted is on.
185 ! Add %Cache.SerializerPermissions option for custom serializer
186 directory/file permissions
187 ! Fix longstanding bug in Flash support for non-IE browsers, and
188 allow more wmode attributes.
189 ! Add %CSS.AllowedFonts to restrict permissible font names.
190 - Switch to an iterative traversal of the DOM, which prevents us
191 from running out of stack space for deeply nested documents.
192 Thanks Maxim Krizhanovsky for contributing a patch.
193 - Make removal of conditional IE comments ungreedy; thanks Bernd
195 - Escape CDATA before removing Internet Explorer comments.
196 - Fix removal of id attributes under certain conditions by ensuring
197 armor attributes are preserved when recreating tags.
198 - Check if schema.ser was corrupted.
199 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
200 This safety check is only done for HTMLPurifier.auto.php; if you
201 are using standalone or the specialized includes files, you're
202 expected to know what you're doing.
203 - Stop repeatedly writing the cache file after I'm done customizing a
204 raw definition. Reported by ajh.
205 - Switch to using require_once in the Bootstrap to work around bad
206 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
207 - Fix URI handling when hostname is missing but scheme is present.
208 Reported by Neike Taika-Tessaro.
209 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
211 - Fix harmless notice from indexing into empty string. Thanks Matthijs
212 Kooijman <matthijs@stdin.nl> for reporting.
213 - Don't autoclose no parent elements are able to support the element
214 that triggered the autoclose. In particular fixes strange behavior
215 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
216 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
218 4.2.0, released 2010-09-15
219 ! Added %Core.RemoveProcessingInstructions, which lets you remove
220 <? ... ?> statements.
221 ! Added %URI.DisableResources functionality; the directive originally
222 did nothing. Thanks David Rothstein for reporting.
223 ! Add documentation about configuration directive types.
224 ! Add %CSS.ForbiddenProperties configuration directive.
225 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
226 to utilize full-screen mode.
227 ! Add optional support for the <code>file</code> URI scheme, enable
228 by explicitly setting %URI.AllowedSchemes.
229 ! Add %Core.NormalizeNewlines options to allow turning off newline
231 - Fix improper handling of Internet Explorer conditional comments
232 by parser. Thanks zmonteca for reporting.
233 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
234 Thanks sidepodcast for the fix.
235 - Warn if an element is allowed, but an attribute it requires is
238 4.1.1, released 2010-05-31
239 - Fix undefined index warnings in maintenance scripts.
240 - Fix bug in DirectLex for parsing elements with a single attribute
242 - Rewrite CSS output logic for font-family and url(). Thanks Mario
243 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
244 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
245 - Emit an error for CollectErrors if a body is extracted
246 - Fix bug where in background-position for center keyword handling.
247 - Fix infinite loop when a wrapper element is inserted in a context
248 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
249 - Remove +x bit and shebang from index.php; only supported mode is to
250 explicitly call it with php.
251 - Make test script less chatty when log_errors is on.
253 4.1.0, released 2010-04-26
254 ! Support proprietary height attribute on table element
255 ! Support YouTube slideshows that contain /cp/ in their URL.
256 ! Support for data: URI scheme; not enabled by default, add it using
258 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
259 ! Support for Internet Explorer compatibility with %HTML.SafeObject
260 using %Output.FlashCompat.
261 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
262 - Always quote the insides of url(...) in CSS.
264 4.0.0, released 2009-07-07
265 # APIs for ConfigSchema subsystem have substantially changed. See
266 docs/dev-config-bcbreaks.txt for details; in essence, anything that
267 had both namespace and directive now have a single unified key.
268 # Some configuration directives were renamed, specifically:
269 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
270 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
271 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
272 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
273 As usual, the old directive names will still work, but will throw E_NOTICE
275 # The allowed values for class have been relaxed to allow all of CDATA for
276 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
277 %Attr.ClassUseCDATA to false.
278 # Instead of appending the content model to an old content model, a blank
279 element will replace the old content model. You can use #SUPER to get
280 the old content model.
281 ! More robust support for name="" and id=""
282 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
283 configuration, and have changes to that configuration be propagated
284 to all of its children.
285 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
286 the name attribute when set. Use with care. Thanks Ian Cook for
288 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
289 tags that contain non-breaking spaces as well other whitespace. You
290 can also modify which tags should have maintained with
291 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
292 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
293 classes users can use to a specified finite set of classes, and
294 %Attr.ForbiddenClasses, which is the logical inverse.
295 ! You can now maintain your own configuration schema directories by
296 creating a config-schema.php file or passing an extra argument. Check
297 docs/dev-config-schema.html for more details.
298 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
299 your configuration in a compact serial file, which you can unserialize
300 and use directly without having to go through the overhead of setup.
301 - Fix bug where URIDefinition would not get cleared if it's directives got
303 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
304 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
305 - Make %URI.Munge not apply to links that have the same host as your host.
306 - Prevent stray </body> tag from truncating output, if a second </body>
308 . Created script maintenance/rename-config.php for renaming a configuration
309 directive while maintaining its alias. This script does not change source code.
310 . Implement namespace locking for definition construction, to prevent
311 bugs where a directive is used for definition construction but is not
312 used to construct the cache hash.
314 3.3.0, released 2009-02-16
315 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
316 ! Implement generic property list classess
317 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
318 does not do the "right thing" with characters not supported in the output
320 - Spellcheck UTF-8: The Secret To Character Encoding
321 - Fix improper removal of the contents of elements with only whitespace. Thanks
322 Eric Wald for reporting.
323 - Fix broken test suite in versions of PHP without spl_autoload_register()
324 - Fix degenerate case with YouTube filter involving double hyphens.
325 Thanks Pierre Attar for reporting.
326 - Fix YouTube rendering problem on certain versions of Firefox.
327 - Fix CSSDefinition Printer problems with decorators
328 - Add text parameter to unit tests, forces text output
329 . Add verbose mode to command line test runner, use (--verbose)
330 . Turn on unit tests for UnitConverter
331 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
332 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
334 . Removed trailing whitespace from all text files, see
335 remote-trailing-whitespace.php maintenance script.
336 . Convert configuration to use property list backend.
338 3.2.0, released 2008-10-31
339 # Using %Core.CollectErrors forces line number/column tracking on, whereas
340 previously you could theoretically turn it off.
341 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
342 use handleEnd() instead.
343 ! %Output.AttrSort for when you need your attributes in alphabetical order to
344 deal with a bug in FCKEditor. Requested by frank farmer.
345 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
346 ! Proper support for name attribute. It is now allowed and equivalent to the id
347 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
348 is heavy (for all doctypes).
349 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
350 use on hand-written HTML.
351 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
352 the strategy to be used, standalone, on untrusted input.
353 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
354 processing of left angled brackets in smileys and other whatnot.
355 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
356 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
357 the --only-phpt parameter, although for backwards-compatibility the flag
359 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
360 Users who are not performing inbound filtering, this may seem a little
361 useless, but as a bonus, the test suite and handling of edge cases is also
363 ! Experimental implementation of forms for %HTML.Trusted
364 ! Track column numbers when maintain line numbers is on
365 ! Proprietary 'background' attribute on table-related elements converted into
366 corresponding CSS. Thanks Fusemail for sponsoring this feature!
367 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
369 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
370 time of operation varies slightly from notifyEnd() as *all* end tokens are
371 processed by the injector before they are subject to the well-formedness rules.
372 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
373 basename of image when not present.
374 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
375 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
376 the other involving an undefined $is_folder error.
377 - Throw error when %Core.Encoding is set to a spurious value. Previously,
378 this errored silently and returned false.
379 - Redirected stderr to stdout for flush error output.
380 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
382 - Do not re-munge URL if the output URL has the same host as the input URL.
384 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
385 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
386 - Fix bug with inline elements in blockquotes conflicting with strict doctype
387 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
388 - Fix bug where dots and double-dots in absolute URLs without hostname were
389 not collapsed by URIFilter_MakeAbsolute.
390 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
391 by reordering their addition.
392 - Will now throw exception on many error conditions during lexer creation; also
393 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
395 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
396 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
397 Reported by David Morton.
398 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
399 for more interesting filter-backtracking
400 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
401 index to reprocess tokens.
402 . StringHashParser now allows for multiline sections with "empty" content;
403 previously the section would remain undefined.
404 . Added --quick option to multitest.php, which tests only the most recent
405 release for each series.
406 . Added --distro option to multitest.php, which accepts either 'normal' or
407 'standalone'. This supercedes --exclude-normal and --exclude-standalone
409 3.1.1, released 2008-06-19
410 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
411 In order to enable this again, please set %URI.MungeResources to true.
412 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
413 and height/width HTML with %HTML.MaxImgLength.
414 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
415 for sponsoring this feature. Check out the corresponding documentation
416 for details. (Att Nightly testers: The API for this feature changed before
417 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
418 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
419 ! Implemented post URI filtering. Set member variable $post to true to set
421 ! Allow modules to define injectors via $info_injector. Injectors are
422 automatically disabled if injector's needed elements are not found.
423 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
424 Thanks Chris for sponsoring. If you've been using ad hoc code from the
425 forums, PLEASE use this instead.
426 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
427 embedded, tag name, attribute name, CSS property name). See %URI.Munge
428 for more details. Requested by Jochem Blok.
429 - Disable percent height/width attributes for img.
430 - AttrValidator operations are now atomic; updates to attributes are not
431 manifest in token until end of operations. This prevents naughty internal
432 code from directly modifying CurrentToken when they're not supposed to.
433 This semantics change was requested by frank farmer.
434 - Percent encoding checks enabled for URI query and fragment
435 - Fix stray backslashes in font-family; CSS Unicode character escapes are
436 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
438 - Improve parseCDATA algorithm to take into account newline normalization
439 - Account for browser confusion between Yen character and backslash in
440 Shift_JIS encoding. This fix generalizes to any other encoding which is not
441 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
442 - Fix missing configuration parameter in Generator calls. Thanks vs for the
444 - Improved adherence to Unicode by checking for non-character codepoints.
445 Thanks Geoffrey Sneddon for reporting. This may result in degraded
446 performance for extremely large inputs.
447 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
449 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
450 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
452 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
453 to __construct($min, $max). __construct(true) is equivalent to
455 . Added HTMLPurifier_AttrDef_Switch class
456 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
457 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
458 get this called with the configuration object. All modules now
459 use this rather than __construct(), although legacy code using constructors
460 will still work--the new format, however, lets modules access the
461 configuration object for HTML namespace dependant tweaks.
462 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
463 . ConfigSchema data-structure heavily optimized; on average it uses a third
464 the memory it did previously. The interface has changed accordingly,
465 consult changes to HTMLPurifier_Config for details.
466 . Variable parsing types now are magic integers instead of strings
467 . Added benchmark for ConfigSchema
468 . HTMLPurifier_Generator requires $config and $context parameters. If you
469 don't know what they should be, use HTMLPurifier_Config::createDefault()
470 and new HTMLPurifier_Context().
471 . Printers now properly distinguish between output configuration, and
472 target configuration. This is not applicable to scripts using
473 the Printers for HTML Purifier related tasks.
474 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
475 fatal errors will ensue.
476 . URIFilter->prepare can return false in order to abort loading of the filter
477 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
478 an external resource.
479 . %URI.Munge functionality factored out into a post-filter class.
480 . Added CurrentCSSProperty context variable during CSS validation
482 3.1.0, released 2008-05-18
483 # Unnecessary references to objects (vestiges of PHP4) removed from method
484 signatures. The following methods do not need references when assigning from
485 them and will result in E_STRICT errors if you try:
486 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
487 + HTMLPurifier_ConfigSchema::instance()
488 + HTMLPurifier_DefinitionCacheFactory::instance()
489 + HTMLPurifier_DefinitionCacheFactory->create()
490 + HTMLPurifier_DoctypeRegistry->register()
491 + HTMLPurifier_DoctypeRegistry->get()
492 + HTMLPurifier_HTMLModule->addElement()
493 + HTMLPurifier_HTMLModule->addBlankElement()
494 + HTMLPurifier_LanguageFactory::instance()
495 # Printer_ConfigForm's get*() functions were static-ified
496 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
497 form of tag@attr, NOT tag.attr (which will throw an error and won't do
498 anything). This is for forwards compatibility with XML; you'd do best
499 to migrate an %HTML.AllowedAttributes directives to this syntax too.
500 ! Allow index to be false for config from form creation
501 ! Added HTMLPurifier::VERSION constant
502 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
503 and allows for version numbers like "3.1.0-dev".
504 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
505 ! HTML Purifier's URI handling is a lot more robust, with much stricter
506 validation checks and better percent encoding handling. Thanks Gareth Heyes
507 for indicating security vulnerabilities from lax percent encoding.
508 ! Bootstrap autoloader deals more robustly with classes that don't exist,
509 preventing class_exists($class, true) from barfing.
510 - InterchangeBuilder now alphabetizes its lists
511 - Validation error in configdoc output fixed
512 - Iconv and other encoding errors muted even with custom error handlers that
513 do not honor error_reporting
514 - Add protection against imagecrash attack with CSS height/width
515 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
516 - Fixed and revamped broken ConfigForm smoketest
517 - Bug with bool/null fields in Printer_ConfigForm fixed
518 - Bug with global forbidden attributes fixed
519 - Improved error messages for allowed and forbidden HTML elements and attributes
520 - Missing (or null) in configdoc documentation restored
521 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
522 of DOM), HTML Purifier punts to DirectLex
523 - Fatal error with unserialization of ScriptRequired
524 - Created directories are now chmod'ed properly
525 - Fixed bug with fallback languages in LanguageFactory
526 - Standalone testing setup properly with autoload
527 . Out-of-date documentation revised
528 . UTF-8 encoding check optimization as suggested by Diego
529 . HTMLPurifier_Error removed in favor of exceptions
530 . More copy() function removed; should use clone instead
531 . More extensive unit tests for HTMLDefinition
532 . assertPurification moved to central harness
533 . HTMLPurifier_Generator accepts $config and $context parameters during
534 instantiation, not runtime
535 . Double-quotes outside of attribute values are now unescaped
537 3.1.0rc1, released 2008-04-22
538 # Autoload support added. Internal require_once's removed in favor of an
539 explicit require list or autoloading. To use HTML Purifier,
540 you must now either use HTMLPurifier.auto.php
541 or HTMLPurifier.includes.php; setting the include path and including
542 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
543 as well to register our autoload handler (or modify your autoload function
544 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
545 HTMLPurifier.safe-includes.php for a less performance friendly but more
546 user-friendly library load.
547 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
548 information is stored in the ConfigSchema directory, and the
549 maintenance/generate-schema-cache.php generates the schema.ser file, which
550 is now instantiated. Support for userland schema changes coming soon!
551 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
552 alias; to get rid of these errors just modify your configuration to use
553 the new directive name.
554 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
555 enabled using %Filter.$filter_name or by setting your own filters using
557 # Directive-level safety properties superceded in favor of module-level
558 safety. Internal method HTMLModule->addElement() has changed, although
559 the externally visible HTMLDefinition->addElement has *not* changed.
560 ! Extra utility classes for testing and non-library operations can
561 be found in extras/. Specifically, these are FSTools and ConfigDoc.
562 You may find a use for these in your own project, but right now they
563 are highly experimental and volatile.
564 ! Integration with PHPT allows for automated smoketests
565 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
566 by Chris. You can enable them with %HTML.Proprietary if your client
568 ! Support for !important CSS cascade modifier. By default, this will be stripped
569 from CSS, but you can enable it using %CSS.AllowImportant
570 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
572 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
573 Developer error (not enduser error) can cause these to be triggered.
574 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
575 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
576 mucking around with HTMLPurifier_CSSDefinition
577 ! ConfigDoc output has been enhanced with version and deprecation info.
578 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
579 - Autoclose now operates iteratively, i.e. <span><span><div> now has
580 both span tags closed.
581 - Various HTMLPurifier_Config convenience functions now accept another parameter
582 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
584 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
585 - Fix bug in ExtractStyleBlocks with comments in style tags
586 - Fix bug in comment parsing for DirectLex
587 - Flush output now displayed when in command line mode for unit tester
588 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
589 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
590 on the same element without emitting errors.
591 - Fixed fatal error in PH5P lexer with invalid tag names
592 . Plugins now get their own changelogs according to project conventions.
593 . Convert tokens to use instanceof, reducing memory footprint and
594 improving comparison speed.
595 . Dry runs now supported in SimpleTest; testing facilities improved
596 . Bootstrap class added for handling autoloading functionality
597 . Implemented recursive glob at FSTools->globr
598 . ConfigSchema now has instance methods for all corresponding define*
600 . A couple of new historical maintenance scripts were added.
601 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
602 . tests/index.php can now be run from any directory.
603 . HTMLPurifier_Token subclasses split into seperate files
604 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
605 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
606 . New --php=php flag added, allows PHP executable to be specified (command
608 . htmlpurifier_add_test() preferred method to translate test files in to
609 classes, because it handles PHPT files too.
610 . Debugger class is deprecated and will be removed soon.
611 . Command line argument parsing for testing scripts revamped, now --opt value
613 . Smoketests now cleanup after magic quotes
614 . Generator now can output comments (however, comments are still stripped
615 from HTML Purifier output)
616 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
617 HTMLPurifier_VarParser->parse()
618 . Integers auto-cast into float type by VarParser.
619 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
620 during cache generation
621 . Reordered script calls in maintenance/flush.php
622 . Command line scripts now honor exit codes
623 . When --flush fails in unit testers, abort tests and print message
624 . Improved documentation in docs/dev-flush.html about the maintenance scripts
625 . copy() methods removed in favor of clone keyword
627 3.0.0, released 2008-01-06
628 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
629 until PHP 4 is completely deprecated, but no new features will be added
631 + Visibility declarations added
632 + Constructor methods renamed to __construct()
633 + PHP4 reference cruft removed (in progress)
634 ! CSS properties are now case-insensitive
635 ! DefinitionCacheFactory now can register new implementations
636 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
637 documents and cleaning their contents up. Requires the CSSTidy library
638 <http://csstidy.sourceforge.net/>. You can access the blocks with the
639 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
640 The output CSS can also be "scoped" for a specific element, use:
641 %Filter.ExtractStyleBlocksScope
642 ! Experimental support for some proprietary CSS attributes allowed:
643 opacity (and all of the browser-specific equivalents) and scrollbar colors.
644 Enable by setting %CSS.Proprietary to true.
645 - Colors missing # but in hex form will be corrected
646 - CSS Number algorithm improved
647 - Unit testing and multi-testing now on steroids: command lines,
648 XML output, and other goodies now added.
649 . Unit tests for Injector improved
651 + HTMLPurifier_AttrDef_CSS_AlphaValue
652 + HTMLPurifier_AttrDef_CSS_Filter
653 . Multitest now has a file docblock
655 2.1.3, released 2007-11-05
656 ! tests/multitest.php allows you to test multiple versions by running
657 tests/index.php through multiple interpreters using `phpv` shell
658 script (you must provide this script!)
659 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
661 - Injector algorithm further refined: off-by-one error regarding skip
662 counts for dormant injectors fixed
663 - Corrective blockquote definition now enabled for HTML 4.01 Strict
664 - Fatal error when <img> tag (or any other element with required attributes)
665 has 'id' attribute fixed, thanks NykO18 for reporting
666 - Fix warning emitted when a non-supported URI scheme is passed to the
667 MakeAbsolute URIFilter, thanks NykO18 (again)
668 - Further refine AutoParagraph injector. Behavior inside of elements
669 allowing paragraph tags clarified: only inline content delimeted by
670 double newlines (not block elements) are paragraphed.
671 - Buggy treatment of end tags of elements that have required attributes
672 fixed (does not manifest on default tag-set)
673 - Spurious internal content reorganization error suppressed
674 - HTMLDefinition->addElement now returns a reference to the created
675 element object, as implied by the documentation
676 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
677 - Fix a theoretical class of infinite loops from DirectLex reported
679 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
681 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
682 HTMLDefinition errors, this may indicate problems with error-collecting
684 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
685 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
686 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
687 to better communicate its purpose
688 . Error unit tests can now specify the expectation of no errors. Future
689 iterations of the harness will be extremely strict about what errors
691 . Extend Injector hooks to allow for more powerful injector routines
692 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
694 . Doxygen configuration file updated, with minor improvements
695 . Test runner now checks for similarly named files in conf/ directory too.
696 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
698 . Maintenance script for generating PH5P patch added, original PH5P source
699 file also added under version control
700 . Full unit test runner script title made more descriptive with PHP version
701 . Updated INSTALL file to state that 4.3.7 is the earliest version we
704 2.1.2, released 2007-09-03
705 ! Implemented Object module for trusted users
706 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
708 require_once 'HTMLPurifier/Lexer/PH5P.php';
709 $config->set('Core', 'LexerImpl', 'PH5P');
710 Note that this Lexer introduces some classes not in the HTMLPurifier
711 namespace. Also, this is PHP5 only.
712 ! CSS property border-spacing implemented
713 - Fix non-visible parsing error in DirectLex with empty tags that have
714 slashes inside attribute values.
715 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
716 accepted as valid CSS. Usually non-visible, because this styling is the
717 default for tables in most browsers. Thanks Brett Zamir for pointing
719 - Fix validation errors in configuration form
720 - Hammer out a bunch of edge-case bugs in the standalone distribution
721 - Inclusion reflection removed from URISchemeRegistry; you must manually
722 include any new schema files you wish to use
723 - Numerous typo fixes in documentation thanks to Brett Zamir
724 . Unit test refactoring for one logical test per test function
725 . Config and context parameters in ComplexHarness deprecated: instead, edit
726 the $config and $context member variables
727 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
728 really make a difference, but is good for completeness sake
729 . merge-library.php script refactored for greater code reusability and
732 2.1.1, released 2007-08-04
733 - Fix show-stopper bug in %URI.MakeAbsolute functionality
734 - Fix PHP4 syntax error in standalone version
735 . Add prefix directory to include path for standalone, this prevents
736 other installations from clobbering the standalone's URI schemes
737 . Single test methods can be invoked by prefixing with __only
739 2.1.0, released 2007-08-02
740 # flush-htmldefinition-cache.php superseded in favor of a generic
741 flush-definition-cache.php script, you can clear a specific cache
742 by passing its name as a parameter to the script
743 ! Phorum mod implemented for HTML Purifier
744 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
745 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
746 for PHP4 (DirectLex).
747 ! Standalone file now available, which greatly reduces the amount of
748 includes (although there are still a few files that reside in the
750 ! Relative URIs can now be transformed into their absolute equivalents
751 using %URI.Base and %URI.MakeAbsolute
752 ! Ruby implemented for XHTML 1.1
753 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
755 ! UTF-8 font names now supported in CSS
756 - AutoFormatters emit friendly error messages if tags or attributes they
758 - ConfigForm's compactification of directive names is now configurable
759 - AutoParagraph autoformatter algorithm refined after field-testing
760 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
762 - Contents of <style> tags removed by default when tags are removed
763 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
764 for output cache invalidation
765 . ConfigForm printer now can retrieve CSS and JS files as strings, in
766 case HTML Purifier's directory is not publically accessible
767 . Introduce new text/itext configuration directive values: these represent
768 longer strings that would be more appropriately edited with a textarea
769 . Allow newlines to act as separators for lists, hashes, lookups and
771 . ConfigForm generates textareas instead of text inputs for lists, hashes,
772 lookups, text and itext fields
773 . Hidden element content removal genericized: %Core.HiddenElements can
774 be used to customize this behavior, by default <script> and <style> are
776 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
777 . Custom ChildDef added to default include list
778 . URIScheme reflection improved: will not attempt to include file if class
779 already exists. May clobber autoload, so I need to keep an eye on it
780 . ConfigSchema heavily optimized, will only collect information and validate
781 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
782 . AttrDef_URI unit tests and implementation refactored
783 . benchmarks/ directory now protected from public view with .htaccess file;
784 run the tests via command line
785 . URI scheme is munged off if there is no authority and the scheme is the
787 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
788 . Interface for URIScheme changed
789 . Generic URI object to hold components of URI added, most systems involved
790 in URI validation have been migrated to use it
791 . Custom filtering for URIs factored out to URIDefinition interface for
792 maximum extensibility
794 2.0.1, released 2007-06-27
795 ! Tag auto-closing now based on a ChildDef heuristic rather than a
796 manually set auto_close array; some behavior may change
797 ! Experimental AutoFormat functionality added: auto-paragraph and
798 linkify your HTML input by setting %AutoFormat.AutoParagraph and
799 %AutoFormat.Linkify to true
800 ! Newlines normalized internally, and then converted back to the
801 value of PHP_EOL. If this is not desired, set your newline format
802 using %Output.Newline.
803 ! Beta error collection, messages are implemented for the most generic
804 cases involving Lexing or Strategies
805 - Clean up special case code for <script> tags
806 - Reorder includes for DefinitionCache decorators, fixes a possible
808 - Fixed bug where manually modified definitions were not saved via cache
809 (mostly harmless, except for the fact that it would be a little slower)
810 - Configuration objects with different serials do not clobber each
811 others when revision numbers are unequal
812 - Improve Serializer DefinitionCache directory permissions checks
813 - DefinitionCache no longer throws errors when it encounters old
814 serial files that do not conform to the current style
815 - Stray xmlns attributes removed from configuration documentation
816 - configForm.php smoketest no longer has XSS vulnerability due to
817 unescaped print_r output
818 - Printer adheres to configuration's directives on output format
819 - Fix improperly named form field in ConfigForm printer
820 . Rewire some test-cases to swallow errors rather than expect them
821 . HTMLDefinition printer updated with some of the new attributes
822 . DefinitionCache keys reordered to reflect precedence: version number,
823 hash, then revision number
824 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
825 . Interlinking in configuration documentation added using
826 Injector_PurifierLinkify
827 . Directives now keep track of aliases to themselves
828 . Error collector now requires a severity to be passed, use PHP's internal
829 error constants for this
830 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
831 much easier selective embedding of configuration values
832 . Doctype objects now accept public and system DTD identifiers
833 . %HTML.Doctype is now constrained by specific values, to specify a custom
834 doctype use new %HTML.CustomDoctype
835 . ConfigForm truncates long directives to keep the form small, and does
836 not re-output namespaces
838 2.0.0, released 2007-06-20
839 # Completely refactored HTMLModuleManager, decentralizing safety
841 # Transform modules changed to Tidy modules, which offer more flexibility
842 and better modularization
843 # Configuration object now finalizes itself when a read operation is
844 performed on it, ensuring that its internal state stays consistent.
845 To revert this behavior, you can set the $autoFinalize member variable
846 off, but it's not recommended.
847 # New compact syntax for AttrDef objects that can be used to instantiate
848 new objects via make()
849 # Definitions (esp. HTMLDefinition) are now cached for a significant
850 performance boost. You can disable caching by setting %Core.DefinitionCache
851 to null. You CANNOT edit raw definitions without setting the corresponding
852 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
853 # Contents between <script> tags are now completely removed if <script>
855 # Prototype-declarations for Lexer removed in favor of configuration
856 determination of Lexer implementations.
857 ! HTML Purifier now works in PHP 4.3.2.
858 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
860 ! Configuration directives that accept hashes now allow new string
861 format: key1:value1,key2:value2
862 ! ConfigDoc now factored into OOP design
863 ! All deprecated elements now natively supported
864 ! Implement TinyMCE styled whitelist specification format in
866 ! Config object gives more friendly error messages when things go wrong
867 ! Advanced API implemented: easy functions for creating elements (addElement)
868 and attributes (addAttribute) on HTMLDefinition
869 ! Add native support for required attributes
870 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
871 - DOMLex will not emit errors when a custom error handler that does not
872 honor error_reporting is used
873 - StrictBlockquote child definition refrains from wrapping whitespace
875 - Bug resulting from tag transforms to non-allowed elements fixed
876 - ChildDef_Custom's regex generation has been improved, removing several
878 . Unit test for ElementDef created, ElementDef behavior modified to
880 . Added convenience functions for HTMLModule constructors
881 . AttrTypes now has accessor functions that should be used instead
882 of directly manipulating info
883 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
884 . Add extra protection in AttrDef_URI against phantom Schemes
885 . Doctype object added to HTMLDefinition which describes certain aspects
886 of the operational document type
887 . Lexer is now pre-emptively included, with a conditional include for the
889 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
890 . DirectLex can now track line-numbers
891 . Preliminary error collector is in place, although no code actually reports
893 . Factor out most of ValidateAttributes to new AttrValidator class
895 1.6.1, released 2007-05-05
896 ! Support for more deprecated attributes via transformations:
897 + hspace and vspace in img
898 + size and noshade in hr
901 + align in caption, table, img and hr
902 + type in ul, ol and li
903 ! DirectLex now preserves text in which a < bracket is followed by
904 a non-alphanumeric character. This means that certain emoticons
906 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
907 images will hang around with an empty src
908 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
910 ! CSS property white-space now allows nowrap (supported in all modern
911 browsers) but not others (which have spotty browser implementations)
912 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
913 lang is now moved over to xml:lang.
914 ! Attribute transformation smoketest available at smoketests/attrTransform.php
915 ! Transformation of font's size attribute now handles super-large numbers
916 - Possibly fatal bug with __autoload() fixed in module manager
917 - Invert HTMLModuleManager->addModule() processing order to check
918 prefixes first and then the literal module
919 - Empty strings get converted to empty arrays instead of arrays with
920 an empty string in them.
921 - Merging in attribute lists now works.
922 . Demo script removed: it has been added to the website's repository
923 . Basic.php script modified to work out of the box
924 . Refactor AttrTransform classes to reduce duplication
925 . AttrTransform_TextAlign axed in favor of a more general
926 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
927 see how the new equivalent is implemented
928 . Unit tests now use exclusively assertIdentical
930 1.6.0, released 2007-04-01
931 ! Support for most common deprecated attributes via transformations:
932 + bgcolor in td, th, tr and table
935 + width in td, th and hr
937 ! Support for CSS attribute 'height' added
938 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
939 and %Attr.AllowedRev to activate
940 - You can define ID blacklists using regular expressions via
941 %Attr.IDBlacklistRegexp
942 - Error messages are emitted when you attempt to "allow" elements or
943 attributes that HTML Purifier does not support
944 - Fix segfault in unit test. The problem is not very reproduceable and
945 I don't know what causes it, but a six line patch fixed it.
947 1.5.0, released 2007-03-23
948 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
949 doesn't actually do anything yet, but keep your eyes peeled.
950 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
951 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
952 I am loathe to release beta quality APIs, but this is exactly that;
953 don't use the internal interfaces if you're not willing to do migration
955 - Allow 'x' subtag in language codes
956 - Fixed buggy chameleon-support for ins and del
957 . Added support for IDREF attributes (i.e. for)
958 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
959 . Removed context variable ParentType, replaced with IsInline, which
960 is false when you're not inline and an integer of the parent that
961 caused you to become inline when you are (so possibly zero)
962 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
963 and HTMLDefinition->content_sets
964 . StrictBlockquote now reports what elements its supposed to allow,
965 rather than what it does allow
966 . Removed HTMLDefinition->info_flow_elements in favor of
967 HTMLDefinition->content_sets['Flow']
968 . Removed redundant "exclusionary" definitions from DTD roster
969 . StrictBlockquote now requires a construction parameter as if it
970 were an Required ChildDef, this is the "real" set of allowed elements
971 . AttrDef partitioned into HTML, CSS and URI segments
972 . Modify Youtube filter regexp to be multiline
973 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
974 some edge cases where a DOMDocument class exists in a PHP4 environment
975 due to DOM XML extension.
977 1.4.1, released 2007-01-21
978 ! docs/enduser-youtube.html updated according to new functionality
979 - YouTube IDs can have underscores and dashes
981 1.4.0, released 2007-01-21
982 ! Implemented list-style-image, URIs now allowed in list-style
983 ! Implemented background-image, background-repeat, background-attachment
984 and background-position CSS properties. Shorthand property background
985 supports all of these properties.
986 ! Configuration documentation looks nicer
987 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
988 characters while %Core.Encoding is set to a non-UTF-8 encoding.
989 ! Support for configuration directive aliases added
990 ! Config object can now be instantiated from ini files
991 ! YouTube preservation code added to the core, with two lines of code
992 you can add it as a filter to your code. See smoketests/preserveYouTube.php
994 ! Moved SLOW to docs/enduser-slow.html and added code examples
995 - Replaced version check with functionality check for DOM (thanks Stephen
997 . Added smoketest 'all.php', which loads all other smoketests via frames
998 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
999 . Added convenient single test selector form on test runner
1001 1.3.2, released 2006-12-25
1002 ! HTMLPurifier object now accepts configuration arrays, no need to manually
1003 instantiate a configuration object
1004 ! Context object now accessible to outside
1005 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
1006 also corresponding smoketest preserveYouTube.php.
1007 ! Added purifyArray(), which takes a list of HTML and purifies it all
1008 ! Added static member variable $version to HTML Purifier with PHP-compatible
1009 version number string.
1010 - Fixed fatal error thrown by upper-cased language attributes
1011 - printDefinition.php: added labels, added better clarification
1012 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
1013 a HTMLPurifier_Config object.
1015 1.3.1, released 2006-12-06
1016 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
1017 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
1018 (thanks to .mario for reporting this)
1019 . Standardized all attribute handling variables to attr, made it plural
1021 1.3.0, released 2006-11-26
1022 # Invalid images are now removed, rather than replaced with a dud
1023 <img src="" alt="Invalid image" />. Previous behavior can be restored
1024 with new directive %Core.RemoveInvalidImg set to false.
1025 ! (X)HTML Strict now supported
1026 + Transparently handles inline elements in block context (blockquote)
1027 ! Added GET method to demo for easier validation, added 50kb max input size
1028 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
1029 ! New directive %HTML.Parent, allows you to only allow inline content
1030 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1031 users narrow the set of allowed tags
1032 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1033 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1034 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1035 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1036 service to avoid PageRank leaks or warn users that they are exiting your site.
1037 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1038 the configuration settings and see how the internal rules are affected.
1039 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1040 xssAttacks.php smoketest updated accordingly.
1041 - Added missing type to ChildDef_Chameleon
1042 - Remove Tidy option from demo if there is not Tidy available
1043 . ChildDef_Required guards against empty tags
1044 . Lookup table HTMLDefinition->info_flow_elements added
1045 . Added peace-of-mind variable initialization to Strategy_FixNesting
1046 . Added HTMLPurifier->info_parent_def, parent child processing made special
1047 . Added internal documents briefly summarizing future progression of HTML
1048 . HTMLPurifier_Config->getBatch($namespace) added
1049 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1050 . Refactored ChildDef classes into their own files
1052 1.2.0, released 2006-11-19
1053 # ID attributes now disabled by default. New directives:
1054 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1055 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1056 so that they don't collide with your IDs
1057 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1058 instances of user content on the page
1059 + Profuse documentation on how to use these available in docs/enduser-id.txt
1060 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1061 ! Added percent encoding normalization
1062 ! XSS attacks smoketest given facelift
1063 ! Configuration documentation now has table of contents
1064 ! Added %URI.DisableExternal, which prevents links to external websites. You
1065 can also use %URI.Host to permit absolute linking to subdomains
1066 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1067 - Type variable in HTMLDefinition was not being set properly, fixed
1068 - Documentation updated
1069 + TODO added request Phalanger
1070 + TODO added request Native compression
1071 + TODO added request Remove redundant tags
1072 + TODO added possible plaintext formatter for HTML Purifier documentation
1073 + Updated ConfigDoc TODO
1074 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1075 and AttrDef/Host.php
1076 + Revamped documentation into HTML, along with misc updates
1077 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1078 to retrieve a non-existent variable
1079 . Switched to purify()-wide Context object registry
1080 . Refactored unit tests to minimize duplication
1081 . XSS attack sheet updated
1082 . configdoc.xml now has xml:space attached to default value nodes
1083 . Allow configuration directives to permit null values
1084 . Cleaned up test-cases to remove unnecessary swallowErrors()
1086 1.1.2, released 2006-09-30
1087 ! Add HTMLPurifier.auto.php stub file that configures include_path
1088 - Documentation updated
1089 + INSTALL document rewritten
1090 + TODO added semi-lossy conversion
1091 + API Doxygen docs' file exclusions updated
1092 + Added notes on HTML versus XML attribute whitespace handling
1093 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1094 + Noted that config object's definitions are cached versions
1095 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1096 - ftp:// URIs now have their typecodes checked
1097 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1098 . Line endings standardized throughout project (svn:eol-style standardized)
1099 . Refactored parseData() to general Lexer class
1100 . Tester named "HTML Purifier" not "HTMLPurifier"
1102 1.1.1, released 2006-09-24
1103 ! Configuration option to optionally Tidy up output for indentation to make up
1104 for dropped whitespace by DOMLex (pretty-printing for the entire application
1105 should be done by a page-wide Tidy)
1106 - Various documentation updates
1107 - Fixed parse error in configuration documentation script
1108 - Fixed fatal error in benchmark scripts, slightly augmented
1109 - As far as possible, whitespace is preserved in-between table children
1110 - Sample test-settings.php file included
1112 1.1.0, released 2006-09-16
1113 ! Directive documentation generation using XSLT
1114 ! XHTML can now be turned off, output becomes <br>
1115 - Made URI validator more forgiving: will ignore leading and trailing
1116 quotes, apostrophes and less than or greater than signs.
1117 - Enforce alphanumeric namespace and directive names for configuration.
1118 - Table child definition made more flexible, will fix up poorly ordered elements
1119 . Renamed ConfigDef to ConfigSchema
1121 1.0.1, released 2006-09-04
1122 - Fixed slight bug in DOMLex attribute parsing
1123 - Fixed rejection of case-insensitive configuration values when there is a
1124 set of allowed values. This manifested in %Core.Encoding.
1125 - Fixed rejection of inline style declarations that had lots of extra
1126 space in them. This manifested in TinyMCE.
1128 1.0.0, released 2006-09-01
1129 ! Shorthand CSS properties implemented: font, border, background, list-style
1130 ! Basic color keywords translated into hexadecimal values
1131 ! Table CSS properties implemented
1132 ! Support for charsets other than UTF-8 (defined by iconv)
1133 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1134 - Fixed broken numeric entity conversion
1135 - API documentation completed
1136 . (HTML|CSS)Definition de-singleton-ized
1138 1.0.0beta, released 2006-08-16
1139 ! First public release, most functionality implemented. Notable omissions are:
1140 + Shorthand CSS properties
1141 + Table CSS properties
1142 + Deprecated attribute transformations