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1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
5 # Breaks back-compat
6 ! Feature
7 - Bugfix
8 + Sub-comment
9 . Internal change
10 ==========================
12 4.8.0, unknown release date
13 ! Full PHP 7 compatibility, the test suite is ALL GO.
14 ! %CSS.AllowDuplicates permits duplicate CSS properties.
15 - alt truncation could result in malformed UTF-8 sequence. Don't
16 truncate. Thanks Brandon Farber for reporting.
17 - Linkify regex is smarter, based off of Gruber's regex.
18 - IDNA supported natively on PHP 5.3 and later.
19 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
20 allowed.
21 - Minor bounds error fix to squash a PHP 7 notice.
22 - Support non-/tmp temporary directories for data:// validation
23 - Give a better error message when a user attempts to allow
24 ul/ol without allowing li.
25 - On some versions of PHP, the Serializer DefinitionCache could
26 infinite loop when the directory exists but is not listable. (#49)
27 - Don't match for <body> inside comments with
28 %Core.ConvertDocumentToFragment. (#67)
29 - SafeObject is now less case sensitive. (#57)
31 4.7.0, released 2015-08-04
32 # opacity is now considered a "tricky" CSS property rather than a
33 proprietary one.
34 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
35 an element should be considered "empty" (maybe preserve if it
36 has attributes), and modify iframe support so that the iframe
37 is removed if it is missing a src attribute. Thanks meeva for
38 reporting.
39 - Don't truncate upon encountering </div> when using DOMLex. Thanks
40 Myrto Christina for finally convincing me to fix this.
41 - Update YouTube filter for new code.
42 - Fix parsing of rgb() values with spaces in them for 'border'
43 attribute.
44 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
45 valME for reporting.
47 4.6.0, released 2013-11-30
48 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
49 Please update any verification scripts you may have.
50 # URI parsing algorithm was made more strict, so only prefixes which
51 looks like schemes will actually be schemes. Thanks
52 Michael Gusev <mgusev@sugarcrm.com> for fixing.
53 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
54 anything.
55 ! New directive %Core.AllowHostnameUnderscore which allows underscores
56 in hostnames.
57 - Eliminate quadratic behavior in DOMLex by using a proper queue.
58 Thanks Ole Laursen for noticing this.
59 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
60 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
61 Networks for sponsoring this work.
62 - Made Linkify URL parser a bit less permissive, so that non-breaking
63 spaces and commas are not included as part of URL. Thanks nAS for fixing.
64 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
65 David Hirtz for reporting.
66 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
67 for reporting.
69 4.5.0, released 2013-02-17
70 # Fix bug where stacked attribute transforms clobber each other;
71 this also means it's no longer possible to override attribute
72 transforms in later modules. No internal code was using this
73 but this may break some clients.
74 # We now use SHA-1 to identify cached definitions, instead of MD5.
75 ! Support display:inline-block
76 ! Support for more white-space CSS values.
77 ! Permit underscores in font families
78 ! Support for page-break-* CSS3 properties when proprietary properties
79 are enabled.
80 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
81 SGML excludes checking. If HTML Purifier is removing too much text
82 and you don't care about full standards compliance, try setting this to
83 'true'.
84 - Use prepend for SPL autoloading on PHP 5.3 and later.
85 - Fix bug with nofollow transform when pre-existing rel exists.
86 - Fix bug where background:url() always gets lower-cased
87 (but not background-image:url())
88 - Fix bug with non lower-case color names in HTML
89 - Fix bug where data URI validation doesn't remove temporary files.
90 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
91 - Don't remove certain empty tags on RemoveEmpty.
93 4.4.0, released 2012-01-18
94 # Removed PEARSax3 handler.
95 # URI.Munge now munges URIs inside the same host that go from https
96 to http. Reported by Neike Taika-Tessaro.
97 # Core.EscapeNonASCIICharacters now always transforms entities to
98 entities, even if target encoding is UTF-8.
99 # Tighten up selector validation in ExtractStyleBlocks.
100 Non-syntactically valid selectors are now rejected, along with
101 some of the more obscure ones such as attribute selectors, the
102 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
103 ID and class selectors now work properly with the relevant
104 configuration attributes. Also, mute errors when parsing CSS
105 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
106 ! Added support for 'scope' attribute on tables.
107 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
108 ! Properly handle sub-lists directly nested inside of lists in
109 a standards compliant way, by moving them into the preceding <li>
110 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
111 limited allowed comments in untrusted situations.
112 ! Implement iframes, and allow them to be used in untrusted mode with
113 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
114 <brad.froehle@gmail.com> for submitting an initial version of the patch.
115 ! The Forms module now works properly for transitional doctypes.
116 ! Added support for internationalized domain names. You need the PEAR
117 Net_IDNA2 module to be in your path; if it is installed, ensure the
118 class can be loaded and then set %Core.EnableIDNA to true.
119 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
120 <yramirez-htmlpurifier@adicio.com> for reporting.
121 - Explicitly initialize anonModule variable to null.
122 - Do not duplicate nofollow if already present. Thanks 178
123 for reporting.
124 - Do not add nofollow if hostname matches our current host. Thanks 178
125 for reporting, and Neike Taika-Tessaro for helping diagnose.
126 - Do not unset parser variable; this fixes intermittent serialization
127 problems. Thanks Neike Taika-Tessaro for reporting, bill
128 <10010tiger@gmail.com> for diagnosing.
129 - Fix iconv truncation bug, where non-UTF-8 target encodings see
130 output truncated after around 8000 characters. Thanks Jörg Ludwig
131 <joerg.ludwig@iserv.eu> for reporting.
132 - Fix broken table content model for XHTML1.1 (and also earlier
133 versions, although the W3C validator doesn't catch those violations).
134 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
136 4.3.0, released 2011-03-27
137 # Fixed broken caching of customized raw definitions, but requires an
138 API change. The old API still works but will emit a warning,
139 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
140 for how to upgrade your code.
141 # Protect against Internet Explorer innerHTML behavior by specially
142 treating attributes with backticks but no angled brackets, quotes or
143 spaces. This constitutes a slight semantic change, which can be
144 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
145 and Mario Heiderich.
146 # Protect against cssText/innerHTML by restricting allowed characters
147 used in fonts further than mandated by the specification and encoding
148 some extra special characters in URLs. Reported by Neike
149 Taika-Tessaro and Mario Heiderich.
150 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
151 ! More types of SPL autoloaders allowed on later versions of PHP.
152 ! Implementations for position, top, left, right, bottom, z-index
153 when %CSS.Trusted is on.
154 ! Add %Cache.SerializerPermissions option for custom serializer
155 directory/file permissions
156 ! Fix longstanding bug in Flash support for non-IE browsers, and
157 allow more wmode attributes.
158 ! Add %CSS.AllowedFonts to restrict permissible font names.
159 - Switch to an iterative traversal of the DOM, which prevents us
160 from running out of stack space for deeply nested documents.
161 Thanks Maxim Krizhanovsky for contributing a patch.
162 - Make removal of conditional IE comments ungreedy; thanks Bernd
163 for reporting.
164 - Escape CDATA before removing Internet Explorer comments.
165 - Fix removal of id attributes under certain conditions by ensuring
166 armor attributes are preserved when recreating tags.
167 - Check if schema.ser was corrupted.
168 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
169 This safety check is only done for HTMLPurifier.auto.php; if you
170 are using standalone or the specialized includes files, you're
171 expected to know what you're doing.
172 - Stop repeatedly writing the cache file after I'm done customizing a
173 raw definition. Reported by ajh.
174 - Switch to using require_once in the Bootstrap to work around bad
175 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
176 - Fix URI handling when hostname is missing but scheme is present.
177 Reported by Neike Taika-Tessaro.
178 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
179 for reporting.
180 - Fix harmless notice from indexing into empty string. Thanks Matthijs
181 Kooijman <matthijs@stdin.nl> for reporting.
182 - Don't autoclose no parent elements are able to support the element
183 that triggered the autoclose. In particular fixes strange behavior
184 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
185 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
187 4.2.0, released 2010-09-15
188 ! Added %Core.RemoveProcessingInstructions, which lets you remove
189 <? ... ?> statements.
190 ! Added %URI.DisableResources functionality; the directive originally
191 did nothing. Thanks David Rothstein for reporting.
192 ! Add documentation about configuration directive types.
193 ! Add %CSS.ForbiddenProperties configuration directive.
194 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
195 to utilize full-screen mode.
196 ! Add optional support for the <code>file</code> URI scheme, enable
197 by explicitly setting %URI.AllowedSchemes.
198 ! Add %Core.NormalizeNewlines options to allow turning off newline
199 normalization.
200 - Fix improper handling of Internet Explorer conditional comments
201 by parser. Thanks zmonteca for reporting.
202 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
203 Thanks sidepodcast for the fix.
204 - Warn if an element is allowed, but an attribute it requires is
205 not allowed.
207 4.1.1, released 2010-05-31
208 - Fix undefined index warnings in maintenance scripts.
209 - Fix bug in DirectLex for parsing elements with a single attribute
210 with entities.
211 - Rewrite CSS output logic for font-family and url(). Thanks Mario
212 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
213 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
214 - Emit an error for CollectErrors if a body is extracted
215 - Fix bug where in background-position for center keyword handling.
216 - Fix infinite loop when a wrapper element is inserted in a context
217 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
218 - Remove +x bit and shebang from index.php; only supported mode is to
219 explicitly call it with php.
220 - Make test script less chatty when log_errors is on.
222 4.1.0, released 2010-04-26
223 ! Support proprietary height attribute on table element
224 ! Support YouTube slideshows that contain /cp/ in their URL.
225 ! Support for data: URI scheme; not enabled by default, add it using
226 %URI.AllowedSchemes
227 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
228 ! Support for Internet Explorer compatibility with %HTML.SafeObject
229 using %Output.FlashCompat.
230 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
231 - Always quote the insides of url(...) in CSS.
233 4.0.0, released 2009-07-07
234 # APIs for ConfigSchema subsystem have substantially changed. See
235 docs/dev-config-bcbreaks.txt for details; in essence, anything that
236 had both namespace and directive now have a single unified key.
237 # Some configuration directives were renamed, specifically:
238 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
239 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
240 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
241 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
242 As usual, the old directive names will still work, but will throw E_NOTICE
243 errors.
244 # The allowed values for class have been relaxed to allow all of CDATA for
245 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
246 %Attr.ClassUseCDATA to false.
247 # Instead of appending the content model to an old content model, a blank
248 element will replace the old content model. You can use #SUPER to get
249 the old content model.
250 ! More robust support for name="" and id=""
251 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
252 configuration, and have changes to that configuration be propagated
253 to all of its children.
254 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
255 the name attribute when set. Use with care. Thanks Ian Cook for
256 sponsoring.
257 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
258 tags that contain non-breaking spaces as well other whitespace. You
259 can also modify which tags should have maintained with
260 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
261 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
262 classes users can use to a specified finite set of classes, and
263 %Attr.ForbiddenClasses, which is the logical inverse.
264 ! You can now maintain your own configuration schema directories by
265 creating a config-schema.php file or passing an extra argument. Check
266 docs/dev-config-schema.html for more details.
267 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
268 your configuration in a compact serial file, which you can unserialize
269 and use directly without having to go through the overhead of setup.
270 - Fix bug where URIDefinition would not get cleared if it's directives got
271 changed.
272 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
273 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
274 - Make %URI.Munge not apply to links that have the same host as your host.
275 - Prevent stray </body> tag from truncating output, if a second </body>
276 is present.
277 . Created script maintenance/rename-config.php for renaming a configuration
278 directive while maintaining its alias. This script does not change source code.
279 . Implement namespace locking for definition construction, to prevent
280 bugs where a directive is used for definition construction but is not
281 used to construct the cache hash.
283 3.3.0, released 2009-02-16
284 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
285 ! Implement generic property list classess
286 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
287 does not do the "right thing" with characters not supported in the output
288 set.
289 - Spellcheck UTF-8: The Secret To Character Encoding
290 - Fix improper removal of the contents of elements with only whitespace. Thanks
291 Eric Wald for reporting.
292 - Fix broken test suite in versions of PHP without spl_autoload_register()
293 - Fix degenerate case with YouTube filter involving double hyphens.
294 Thanks Pierre Attar for reporting.
295 - Fix YouTube rendering problem on certain versions of Firefox.
296 - Fix CSSDefinition Printer problems with decorators
297 - Add text parameter to unit tests, forces text output
298 . Add verbose mode to command line test runner, use (--verbose)
299 . Turn on unit tests for UnitConverter
300 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
301 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
302 tested on Linux.
303 . Removed trailing whitespace from all text files, see
304 remote-trailing-whitespace.php maintenance script.
305 . Convert configuration to use property list backend.
307 3.2.0, released 2008-10-31
308 # Using %Core.CollectErrors forces line number/column tracking on, whereas
309 previously you could theoretically turn it off.
310 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
311 use handleEnd() instead.
312 ! %Output.AttrSort for when you need your attributes in alphabetical order to
313 deal with a bug in FCKEditor. Requested by frank farmer.
314 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
315 ! Proper support for name attribute. It is now allowed and equivalent to the id
316 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
317 is heavy (for all doctypes).
318 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
319 use on hand-written HTML.
320 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
321 the strategy to be used, standalone, on untrusted input.
322 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
323 processing of left angled brackets in smileys and other whatnot.
324 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
325 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
326 the --only-phpt parameter, although for backwards-compatibility the flag
327 will still work.
328 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
329 Users who are not performing inbound filtering, this may seem a little
330 useless, but as a bonus, the test suite and handling of edge cases is also
331 improved.
332 ! Experimental implementation of forms for %HTML.Trusted
333 ! Track column numbers when maintain line numbers is on
334 ! Proprietary 'background' attribute on table-related elements converted into
335 corresponding CSS. Thanks Fusemail for sponsoring this feature!
336 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
337 supertype.
338 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
339 time of operation varies slightly from notifyEnd() as *all* end tokens are
340 processed by the injector before they are subject to the well-formedness rules.
341 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
342 basename of image when not present.
343 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
344 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
345 the other involving an undefined $is_folder error.
346 - Throw error when %Core.Encoding is set to a spurious value. Previously,
347 this errored silently and returned false.
348 - Redirected stderr to stdout for flush error output.
349 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
350 available.
351 - Do not re-munge URL if the output URL has the same host as the input URL.
352 Requested by Chris.
353 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
354 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
355 - Fix bug with inline elements in blockquotes conflicting with strict doctype
356 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
357 - Fix bug where dots and double-dots in absolute URLs without hostname were
358 not collapsed by URIFilter_MakeAbsolute.
359 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
360 by reordering their addition.
361 - Will now throw exception on many error conditions during lexer creation; also
362 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
363 is being used.
364 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
365 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
366 Reported by David Morton.
367 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
368 for more interesting filter-backtracking
369 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
370 index to reprocess tokens.
371 . StringHashParser now allows for multiline sections with "empty" content;
372 previously the section would remain undefined.
373 . Added --quick option to multitest.php, which tests only the most recent
374 release for each series.
375 . Added --distro option to multitest.php, which accepts either 'normal' or
376 'standalone'. This supercedes --exclude-normal and --exclude-standalone
378 3.1.1, released 2008-06-19
379 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
380 In order to enable this again, please set %URI.MungeResources to true.
381 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
382 and height/width HTML with %HTML.MaxImgLength.
383 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
384 for sponsoring this feature. Check out the corresponding documentation
385 for details. (Att Nightly testers: The API for this feature changed before
386 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
387 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
388 ! Implemented post URI filtering. Set member variable $post to true to set
389 a URIFilter as such.
390 ! Allow modules to define injectors via $info_injector. Injectors are
391 automatically disabled if injector's needed elements are not found.
392 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
393 Thanks Chris for sponsoring. If you've been using ad hoc code from the
394 forums, PLEASE use this instead.
395 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
396 embedded, tag name, attribute name, CSS property name). See %URI.Munge
397 for more details. Requested by Jochem Blok.
398 - Disable percent height/width attributes for img.
399 - AttrValidator operations are now atomic; updates to attributes are not
400 manifest in token until end of operations. This prevents naughty internal
401 code from directly modifying CurrentToken when they're not supposed to.
402 This semantics change was requested by frank farmer.
403 - Percent encoding checks enabled for URI query and fragment
404 - Fix stray backslashes in font-family; CSS Unicode character escapes are
405 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
406 for reporting.
407 - Improve parseCDATA algorithm to take into account newline normalization
408 - Account for browser confusion between Yen character and backslash in
409 Shift_JIS encoding. This fix generalizes to any other encoding which is not
410 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
411 - Fix missing configuration parameter in Generator calls. Thanks vs for the
412 partial patch.
413 - Improved adherence to Unicode by checking for non-character codepoints.
414 Thanks Geoffrey Sneddon for reporting. This may result in degraded
415 performance for extremely large inputs.
416 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
417 for reporting.
418 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
419 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
420 this class.
421 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
422 to __construct($min, $max). __construct(true) is equivalent to
423 __construct('0').
424 . Added HTMLPurifier_AttrDef_Switch class
425 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
426 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
427 get this called with the configuration object. All modules now
428 use this rather than __construct(), although legacy code using constructors
429 will still work--the new format, however, lets modules access the
430 configuration object for HTML namespace dependant tweaks.
431 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
432 . ConfigSchema data-structure heavily optimized; on average it uses a third
433 the memory it did previously. The interface has changed accordingly,
434 consult changes to HTMLPurifier_Config for details.
435 . Variable parsing types now are magic integers instead of strings
436 . Added benchmark for ConfigSchema
437 . HTMLPurifier_Generator requires $config and $context parameters. If you
438 don't know what they should be, use HTMLPurifier_Config::createDefault()
439 and new HTMLPurifier_Context().
440 . Printers now properly distinguish between output configuration, and
441 target configuration. This is not applicable to scripts using
442 the Printers for HTML Purifier related tasks.
443 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
444 fatal errors will ensue.
445 . URIFilter->prepare can return false in order to abort loading of the filter
446 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
447 an external resource.
448 . %URI.Munge functionality factored out into a post-filter class.
449 . Added CurrentCSSProperty context variable during CSS validation
451 3.1.0, released 2008-05-18
452 # Unnecessary references to objects (vestiges of PHP4) removed from method
453 signatures. The following methods do not need references when assigning from
454 them and will result in E_STRICT errors if you try:
455 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
456 + HTMLPurifier_ConfigSchema::instance()
457 + HTMLPurifier_DefinitionCacheFactory::instance()
458 + HTMLPurifier_DefinitionCacheFactory->create()
459 + HTMLPurifier_DoctypeRegistry->register()
460 + HTMLPurifier_DoctypeRegistry->get()
461 + HTMLPurifier_HTMLModule->addElement()
462 + HTMLPurifier_HTMLModule->addBlankElement()
463 + HTMLPurifier_LanguageFactory::instance()
464 # Printer_ConfigForm's get*() functions were static-ified
465 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
466 form of tag@attr, NOT tag.attr (which will throw an error and won't do
467 anything). This is for forwards compatibility with XML; you'd do best
468 to migrate an %HTML.AllowedAttributes directives to this syntax too.
469 ! Allow index to be false for config from form creation
470 ! Added HTMLPurifier::VERSION constant
471 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
472 and allows for version numbers like "3.1.0-dev".
473 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
474 ! HTML Purifier's URI handling is a lot more robust, with much stricter
475 validation checks and better percent encoding handling. Thanks Gareth Heyes
476 for indicating security vulnerabilities from lax percent encoding.
477 ! Bootstrap autoloader deals more robustly with classes that don't exist,
478 preventing class_exists($class, true) from barfing.
479 - InterchangeBuilder now alphabetizes its lists
480 - Validation error in configdoc output fixed
481 - Iconv and other encoding errors muted even with custom error handlers that
482 do not honor error_reporting
483 - Add protection against imagecrash attack with CSS height/width
484 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
485 - Fixed and revamped broken ConfigForm smoketest
486 - Bug with bool/null fields in Printer_ConfigForm fixed
487 - Bug with global forbidden attributes fixed
488 - Improved error messages for allowed and forbidden HTML elements and attributes
489 - Missing (or null) in configdoc documentation restored
490 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
491 of DOM), HTML Purifier punts to DirectLex
492 - Fatal error with unserialization of ScriptRequired
493 - Created directories are now chmod'ed properly
494 - Fixed bug with fallback languages in LanguageFactory
495 - Standalone testing setup properly with autoload
496 . Out-of-date documentation revised
497 . UTF-8 encoding check optimization as suggested by Diego
498 . HTMLPurifier_Error removed in favor of exceptions
499 . More copy() function removed; should use clone instead
500 . More extensive unit tests for HTMLDefinition
501 . assertPurification moved to central harness
502 . HTMLPurifier_Generator accepts $config and $context parameters during
503 instantiation, not runtime
504 . Double-quotes outside of attribute values are now unescaped
506 3.1.0rc1, released 2008-04-22
507 # Autoload support added. Internal require_once's removed in favor of an
508 explicit require list or autoloading. To use HTML Purifier,
509 you must now either use HTMLPurifier.auto.php
510 or HTMLPurifier.includes.php; setting the include path and including
511 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
512 as well to register our autoload handler (or modify your autoload function
513 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
514 HTMLPurifier.safe-includes.php for a less performance friendly but more
515 user-friendly library load.
516 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
517 information is stored in the ConfigSchema directory, and the
518 maintenance/generate-schema-cache.php generates the schema.ser file, which
519 is now instantiated. Support for userland schema changes coming soon!
520 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
521 alias; to get rid of these errors just modify your configuration to use
522 the new directive name.
523 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
524 enabled using %Filter.$filter_name or by setting your own filters using
525 %Filter.Custom
526 # Directive-level safety properties superceded in favor of module-level
527 safety. Internal method HTMLModule->addElement() has changed, although
528 the externally visible HTMLDefinition->addElement has *not* changed.
529 ! Extra utility classes for testing and non-library operations can
530 be found in extras/. Specifically, these are FSTools and ConfigDoc.
531 You may find a use for these in your own project, but right now they
532 are highly experimental and volatile.
533 ! Integration with PHPT allows for automated smoketests
534 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
535 by Chris. You can enable them with %HTML.Proprietary if your client
536 demands them.
537 ! Support for !important CSS cascade modifier. By default, this will be stripped
538 from CSS, but you can enable it using %CSS.AllowImportant
539 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
540 to true to use them.
541 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
542 Developer error (not enduser error) can cause these to be triggered.
543 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
544 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
545 mucking around with HTMLPurifier_CSSDefinition
546 ! ConfigDoc output has been enhanced with version and deprecation info.
547 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
548 - Autoclose now operates iteratively, i.e. <span><span><div> now has
549 both span tags closed.
550 - Various HTMLPurifier_Config convenience functions now accept another parameter
551 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
552 global default.
553 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
554 - Fix bug in ExtractStyleBlocks with comments in style tags
555 - Fix bug in comment parsing for DirectLex
556 - Flush output now displayed when in command line mode for unit tester
557 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
558 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
559 on the same element without emitting errors.
560 - Fixed fatal error in PH5P lexer with invalid tag names
561 . Plugins now get their own changelogs according to project conventions.
562 . Convert tokens to use instanceof, reducing memory footprint and
563 improving comparison speed.
564 . Dry runs now supported in SimpleTest; testing facilities improved
565 . Bootstrap class added for handling autoloading functionality
566 . Implemented recursive glob at FSTools->globr
567 . ConfigSchema now has instance methods for all corresponding define*
568 static methods.
569 . A couple of new historical maintenance scripts were added.
570 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
571 . tests/index.php can now be run from any directory.
572 . HTMLPurifier_Token subclasses split into seperate files
573 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
574 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
575 . New --php=php flag added, allows PHP executable to be specified (command
576 line only!)
577 . htmlpurifier_add_test() preferred method to translate test files in to
578 classes, because it handles PHPT files too.
579 . Debugger class is deprecated and will be removed soon.
580 . Command line argument parsing for testing scripts revamped, now --opt value
581 format is supported.
582 . Smoketests now cleanup after magic quotes
583 . Generator now can output comments (however, comments are still stripped
584 from HTML Purifier output)
585 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
586 HTMLPurifier_VarParser->parse()
587 . Integers auto-cast into float type by VarParser.
588 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
589 during cache generation
590 . Reordered script calls in maintenance/flush.php
591 . Command line scripts now honor exit codes
592 . When --flush fails in unit testers, abort tests and print message
593 . Improved documentation in docs/dev-flush.html about the maintenance scripts
594 . copy() methods removed in favor of clone keyword
596 3.0.0, released 2008-01-06
597 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
598 until PHP 4 is completely deprecated, but no new features will be added
599 to it.
600 + Visibility declarations added
601 + Constructor methods renamed to __construct()
602 + PHP4 reference cruft removed (in progress)
603 ! CSS properties are now case-insensitive
604 ! DefinitionCacheFactory now can register new implementations
605 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
606 documents and cleaning their contents up. Requires the CSSTidy library
607 <http://csstidy.sourceforge.net/>. You can access the blocks with the
608 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
609 The output CSS can also be "scoped" for a specific element, use:
610 %Filter.ExtractStyleBlocksScope
611 ! Experimental support for some proprietary CSS attributes allowed:
612 opacity (and all of the browser-specific equivalents) and scrollbar colors.
613 Enable by setting %CSS.Proprietary to true.
614 - Colors missing # but in hex form will be corrected
615 - CSS Number algorithm improved
616 - Unit testing and multi-testing now on steroids: command lines,
617 XML output, and other goodies now added.
618 . Unit tests for Injector improved
619 . New classes:
620 + HTMLPurifier_AttrDef_CSS_AlphaValue
621 + HTMLPurifier_AttrDef_CSS_Filter
622 . Multitest now has a file docblock
624 2.1.3, released 2007-11-05
625 ! tests/multitest.php allows you to test multiple versions by running
626 tests/index.php through multiple interpreters using `phpv` shell
627 script (you must provide this script!)
628 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
629 on some systems.
630 - Injector algorithm further refined: off-by-one error regarding skip
631 counts for dormant injectors fixed
632 - Corrective blockquote definition now enabled for HTML 4.01 Strict
633 - Fatal error when <img> tag (or any other element with required attributes)
634 has 'id' attribute fixed, thanks NykO18 for reporting
635 - Fix warning emitted when a non-supported URI scheme is passed to the
636 MakeAbsolute URIFilter, thanks NykO18 (again)
637 - Further refine AutoParagraph injector. Behavior inside of elements
638 allowing paragraph tags clarified: only inline content delimeted by
639 double newlines (not block elements) are paragraphed.
640 - Buggy treatment of end tags of elements that have required attributes
641 fixed (does not manifest on default tag-set)
642 - Spurious internal content reorganization error suppressed
643 - HTMLDefinition->addElement now returns a reference to the created
644 element object, as implied by the documentation
645 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
646 - Fix a theoretical class of infinite loops from DirectLex reported
647 by Nate Abele
648 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
649 in PHP 5.1
650 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
651 HTMLDefinition errors, this may indicate problems with error-collecting
652 facilities in PHP 5
653 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
654 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
655 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
656 to better communicate its purpose
657 . Error unit tests can now specify the expectation of no errors. Future
658 iterations of the harness will be extremely strict about what errors
659 are allowed
660 . Extend Injector hooks to allow for more powerful injector routines
661 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
662 method
663 . Doxygen configuration file updated, with minor improvements
664 . Test runner now checks for similarly named files in conf/ directory too.
665 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
666 outputted
667 . Maintenance script for generating PH5P patch added, original PH5P source
668 file also added under version control
669 . Full unit test runner script title made more descriptive with PHP version
670 . Updated INSTALL file to state that 4.3.7 is the earliest version we
671 are actively testing
673 2.1.2, released 2007-09-03
674 ! Implemented Object module for trusted users
675 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
676 this to your code:
677 require_once 'HTMLPurifier/Lexer/PH5P.php';
678 $config->set('Core', 'LexerImpl', 'PH5P');
679 Note that this Lexer introduces some classes not in the HTMLPurifier
680 namespace. Also, this is PHP5 only.
681 ! CSS property border-spacing implemented
682 - Fix non-visible parsing error in DirectLex with empty tags that have
683 slashes inside attribute values.
684 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
685 accepted as valid CSS. Usually non-visible, because this styling is the
686 default for tables in most browsers. Thanks Brett Zamir for pointing
687 this out.
688 - Fix validation errors in configuration form
689 - Hammer out a bunch of edge-case bugs in the standalone distribution
690 - Inclusion reflection removed from URISchemeRegistry; you must manually
691 include any new schema files you wish to use
692 - Numerous typo fixes in documentation thanks to Brett Zamir
693 . Unit test refactoring for one logical test per test function
694 . Config and context parameters in ComplexHarness deprecated: instead, edit
695 the $config and $context member variables
696 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
697 really make a difference, but is good for completeness sake
698 . merge-library.php script refactored for greater code reusability and
699 PHP4 compatibility
701 2.1.1, released 2007-08-04
702 - Fix show-stopper bug in %URI.MakeAbsolute functionality
703 - Fix PHP4 syntax error in standalone version
704 . Add prefix directory to include path for standalone, this prevents
705 other installations from clobbering the standalone's URI schemes
706 . Single test methods can be invoked by prefixing with __only
708 2.1.0, released 2007-08-02
709 # flush-htmldefinition-cache.php superseded in favor of a generic
710 flush-definition-cache.php script, you can clear a specific cache
711 by passing its name as a parameter to the script
712 ! Phorum mod implemented for HTML Purifier
713 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
714 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
715 for PHP4 (DirectLex).
716 ! Standalone file now available, which greatly reduces the amount of
717 includes (although there are still a few files that reside in the
718 standalone folder)
719 ! Relative URIs can now be transformed into their absolute equivalents
720 using %URI.Base and %URI.MakeAbsolute
721 ! Ruby implemented for XHTML 1.1
722 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
723 for more details
724 ! UTF-8 font names now supported in CSS
725 - AutoFormatters emit friendly error messages if tags or attributes they
726 need are not allowed
727 - ConfigForm's compactification of directive names is now configurable
728 - AutoParagraph autoformatter algorithm refined after field-testing
729 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
730 blockquote wrapping
731 - Contents of <style> tags removed by default when tags are removed
732 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
733 for output cache invalidation
734 . ConfigForm printer now can retrieve CSS and JS files as strings, in
735 case HTML Purifier's directory is not publically accessible
736 . Introduce new text/itext configuration directive values: these represent
737 longer strings that would be more appropriately edited with a textarea
738 . Allow newlines to act as separators for lists, hashes, lookups and
739 %HTML.Allowed
740 . ConfigForm generates textareas instead of text inputs for lists, hashes,
741 lookups, text and itext fields
742 . Hidden element content removal genericized: %Core.HiddenElements can
743 be used to customize this behavior, by default <script> and <style> are
744 hidden
745 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
746 . Custom ChildDef added to default include list
747 . URIScheme reflection improved: will not attempt to include file if class
748 already exists. May clobber autoload, so I need to keep an eye on it
749 . ConfigSchema heavily optimized, will only collect information and validate
750 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
751 . AttrDef_URI unit tests and implementation refactored
752 . benchmarks/ directory now protected from public view with .htaccess file;
753 run the tests via command line
754 . URI scheme is munged off if there is no authority and the scheme is the
755 default one
756 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
757 . Interface for URIScheme changed
758 . Generic URI object to hold components of URI added, most systems involved
759 in URI validation have been migrated to use it
760 . Custom filtering for URIs factored out to URIDefinition interface for
761 maximum extensibility
763 2.0.1, released 2007-06-27
764 ! Tag auto-closing now based on a ChildDef heuristic rather than a
765 manually set auto_close array; some behavior may change
766 ! Experimental AutoFormat functionality added: auto-paragraph and
767 linkify your HTML input by setting %AutoFormat.AutoParagraph and
768 %AutoFormat.Linkify to true
769 ! Newlines normalized internally, and then converted back to the
770 value of PHP_EOL. If this is not desired, set your newline format
771 using %Output.Newline.
772 ! Beta error collection, messages are implemented for the most generic
773 cases involving Lexing or Strategies
774 - Clean up special case code for <script> tags
775 - Reorder includes for DefinitionCache decorators, fixes a possible
776 missing class error
777 - Fixed bug where manually modified definitions were not saved via cache
778 (mostly harmless, except for the fact that it would be a little slower)
779 - Configuration objects with different serials do not clobber each
780 others when revision numbers are unequal
781 - Improve Serializer DefinitionCache directory permissions checks
782 - DefinitionCache no longer throws errors when it encounters old
783 serial files that do not conform to the current style
784 - Stray xmlns attributes removed from configuration documentation
785 - configForm.php smoketest no longer has XSS vulnerability due to
786 unescaped print_r output
787 - Printer adheres to configuration's directives on output format
788 - Fix improperly named form field in ConfigForm printer
789 . Rewire some test-cases to swallow errors rather than expect them
790 . HTMLDefinition printer updated with some of the new attributes
791 . DefinitionCache keys reordered to reflect precedence: version number,
792 hash, then revision number
793 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
794 . Interlinking in configuration documentation added using
795 Injector_PurifierLinkify
796 . Directives now keep track of aliases to themselves
797 . Error collector now requires a severity to be passed, use PHP's internal
798 error constants for this
799 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
800 much easier selective embedding of configuration values
801 . Doctype objects now accept public and system DTD identifiers
802 . %HTML.Doctype is now constrained by specific values, to specify a custom
803 doctype use new %HTML.CustomDoctype
804 . ConfigForm truncates long directives to keep the form small, and does
805 not re-output namespaces
807 2.0.0, released 2007-06-20
808 # Completely refactored HTMLModuleManager, decentralizing safety
809 information
810 # Transform modules changed to Tidy modules, which offer more flexibility
811 and better modularization
812 # Configuration object now finalizes itself when a read operation is
813 performed on it, ensuring that its internal state stays consistent.
814 To revert this behavior, you can set the $autoFinalize member variable
815 off, but it's not recommended.
816 # New compact syntax for AttrDef objects that can be used to instantiate
817 new objects via make()
818 # Definitions (esp. HTMLDefinition) are now cached for a significant
819 performance boost. You can disable caching by setting %Core.DefinitionCache
820 to null. You CANNOT edit raw definitions without setting the corresponding
821 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
822 # Contents between <script> tags are now completely removed if <script>
823 is not allowed
824 # Prototype-declarations for Lexer removed in favor of configuration
825 determination of Lexer implementations.
826 ! HTML Purifier now works in PHP 4.3.2.
827 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
828 breeze!
829 ! Configuration directives that accept hashes now allow new string
830 format: key1:value1,key2:value2
831 ! ConfigDoc now factored into OOP design
832 ! All deprecated elements now natively supported
833 ! Implement TinyMCE styled whitelist specification format in
834 %HTML.Allowed
835 ! Config object gives more friendly error messages when things go wrong
836 ! Advanced API implemented: easy functions for creating elements (addElement)
837 and attributes (addAttribute) on HTMLDefinition
838 ! Add native support for required attributes
839 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
840 - DOMLex will not emit errors when a custom error handler that does not
841 honor error_reporting is used
842 - StrictBlockquote child definition refrains from wrapping whitespace
843 in tags now.
844 - Bug resulting from tag transforms to non-allowed elements fixed
845 - ChildDef_Custom's regex generation has been improved, removing several
846 false positives
847 . Unit test for ElementDef created, ElementDef behavior modified to
848 be more flexible
849 . Added convenience functions for HTMLModule constructors
850 . AttrTypes now has accessor functions that should be used instead
851 of directly manipulating info
852 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
853 . Add extra protection in AttrDef_URI against phantom Schemes
854 . Doctype object added to HTMLDefinition which describes certain aspects
855 of the operational document type
856 . Lexer is now pre-emptively included, with a conditional include for the
857 PHP5 only version.
858 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
859 . DirectLex can now track line-numbers
860 . Preliminary error collector is in place, although no code actually reports
861 errors yet
862 . Factor out most of ValidateAttributes to new AttrValidator class
864 1.6.1, released 2007-05-05
865 ! Support for more deprecated attributes via transformations:
866 + hspace and vspace in img
867 + size and noshade in hr
868 + nowrap in td
869 + clear in br
870 + align in caption, table, img and hr
871 + type in ul, ol and li
872 ! DirectLex now preserves text in which a < bracket is followed by
873 a non-alphanumeric character. This means that certain emoticons
874 are now preserved.
875 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
876 images will hang around with an empty src
877 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
878 to enable
879 ! CSS property white-space now allows nowrap (supported in all modern
880 browsers) but not others (which have spotty browser implementations)
881 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
882 lang is now moved over to xml:lang.
883 ! Attribute transformation smoketest available at smoketests/attrTransform.php
884 ! Transformation of font's size attribute now handles super-large numbers
885 - Possibly fatal bug with __autoload() fixed in module manager
886 - Invert HTMLModuleManager->addModule() processing order to check
887 prefixes first and then the literal module
888 - Empty strings get converted to empty arrays instead of arrays with
889 an empty string in them.
890 - Merging in attribute lists now works.
891 . Demo script removed: it has been added to the website's repository
892 . Basic.php script modified to work out of the box
893 . Refactor AttrTransform classes to reduce duplication
894 . AttrTransform_TextAlign axed in favor of a more general
895 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
896 see how the new equivalent is implemented
897 . Unit tests now use exclusively assertIdentical
899 1.6.0, released 2007-04-01
900 ! Support for most common deprecated attributes via transformations:
901 + bgcolor in td, th, tr and table
902 + border in img
903 + name in a and img
904 + width in td, th and hr
905 + height in td, th
906 ! Support for CSS attribute 'height' added
907 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
908 and %Attr.AllowedRev to activate
909 - You can define ID blacklists using regular expressions via
910 %Attr.IDBlacklistRegexp
911 - Error messages are emitted when you attempt to "allow" elements or
912 attributes that HTML Purifier does not support
913 - Fix segfault in unit test. The problem is not very reproduceable and
914 I don't know what causes it, but a six line patch fixed it.
916 1.5.0, released 2007-03-23
917 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
918 doesn't actually do anything yet, but keep your eyes peeled.
919 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
920 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
921 I am loathe to release beta quality APIs, but this is exactly that;
922 don't use the internal interfaces if you're not willing to do migration
923 later on.
924 - Allow 'x' subtag in language codes
925 - Fixed buggy chameleon-support for ins and del
926 . Added support for IDREF attributes (i.e. for)
927 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
928 . Removed context variable ParentType, replaced with IsInline, which
929 is false when you're not inline and an integer of the parent that
930 caused you to become inline when you are (so possibly zero)
931 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
932 and HTMLDefinition->content_sets
933 . StrictBlockquote now reports what elements its supposed to allow,
934 rather than what it does allow
935 . Removed HTMLDefinition->info_flow_elements in favor of
936 HTMLDefinition->content_sets['Flow']
937 . Removed redundant "exclusionary" definitions from DTD roster
938 . StrictBlockquote now requires a construction parameter as if it
939 were an Required ChildDef, this is the "real" set of allowed elements
940 . AttrDef partitioned into HTML, CSS and URI segments
941 . Modify Youtube filter regexp to be multiline
942 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
943 some edge cases where a DOMDocument class exists in a PHP4 environment
944 due to DOM XML extension.
946 1.4.1, released 2007-01-21
947 ! docs/enduser-youtube.html updated according to new functionality
948 - YouTube IDs can have underscores and dashes
950 1.4.0, released 2007-01-21
951 ! Implemented list-style-image, URIs now allowed in list-style
952 ! Implemented background-image, background-repeat, background-attachment
953 and background-position CSS properties. Shorthand property background
954 supports all of these properties.
955 ! Configuration documentation looks nicer
956 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
957 characters while %Core.Encoding is set to a non-UTF-8 encoding.
958 ! Support for configuration directive aliases added
959 ! Config object can now be instantiated from ini files
960 ! YouTube preservation code added to the core, with two lines of code
961 you can add it as a filter to your code. See smoketests/preserveYouTube.php
962 for sample code.
963 ! Moved SLOW to docs/enduser-slow.html and added code examples
964 - Replaced version check with functionality check for DOM (thanks Stephen
965 Khoo)
966 . Added smoketest 'all.php', which loads all other smoketests via frames
967 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
968 . Added convenient single test selector form on test runner
970 1.3.2, released 2006-12-25
971 ! HTMLPurifier object now accepts configuration arrays, no need to manually
972 instantiate a configuration object
973 ! Context object now accessible to outside
974 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
975 also corresponding smoketest preserveYouTube.php.
976 ! Added purifyArray(), which takes a list of HTML and purifies it all
977 ! Added static member variable $version to HTML Purifier with PHP-compatible
978 version number string.
979 - Fixed fatal error thrown by upper-cased language attributes
980 - printDefinition.php: added labels, added better clarification
981 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
982 a HTMLPurifier_Config object.
984 1.3.1, released 2006-12-06
985 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
986 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
987 (thanks to .mario for reporting this)
988 . Standardized all attribute handling variables to attr, made it plural
990 1.3.0, released 2006-11-26
991 # Invalid images are now removed, rather than replaced with a dud
992 <img src="" alt="Invalid image" />. Previous behavior can be restored
993 with new directive %Core.RemoveInvalidImg set to false.
994 ! (X)HTML Strict now supported
995 + Transparently handles inline elements in block context (blockquote)
996 ! Added GET method to demo for easier validation, added 50kb max input size
997 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
998 ! New directive %HTML.Parent, allows you to only allow inline content
999 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1000 users narrow the set of allowed tags
1001 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1002 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1003 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1004 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1005 service to avoid PageRank leaks or warn users that they are exiting your site.
1006 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1007 the configuration settings and see how the internal rules are affected.
1008 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1009 xssAttacks.php smoketest updated accordingly.
1010 - Added missing type to ChildDef_Chameleon
1011 - Remove Tidy option from demo if there is not Tidy available
1012 . ChildDef_Required guards against empty tags
1013 . Lookup table HTMLDefinition->info_flow_elements added
1014 . Added peace-of-mind variable initialization to Strategy_FixNesting
1015 . Added HTMLPurifier->info_parent_def, parent child processing made special
1016 . Added internal documents briefly summarizing future progression of HTML
1017 . HTMLPurifier_Config->getBatch($namespace) added
1018 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1019 . Refactored ChildDef classes into their own files
1021 1.2.0, released 2006-11-19
1022 # ID attributes now disabled by default. New directives:
1023 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1024 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1025 so that they don't collide with your IDs
1026 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1027 instances of user content on the page
1028 + Profuse documentation on how to use these available in docs/enduser-id.txt
1029 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1030 ! Added percent encoding normalization
1031 ! XSS attacks smoketest given facelift
1032 ! Configuration documentation now has table of contents
1033 ! Added %URI.DisableExternal, which prevents links to external websites. You
1034 can also use %URI.Host to permit absolute linking to subdomains
1035 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1036 - Type variable in HTMLDefinition was not being set properly, fixed
1037 - Documentation updated
1038 + TODO added request Phalanger
1039 + TODO added request Native compression
1040 + TODO added request Remove redundant tags
1041 + TODO added possible plaintext formatter for HTML Purifier documentation
1042 + Updated ConfigDoc TODO
1043 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1044 and AttrDef/Host.php
1045 + Revamped documentation into HTML, along with misc updates
1046 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1047 to retrieve a non-existent variable
1048 . Switched to purify()-wide Context object registry
1049 . Refactored unit tests to minimize duplication
1050 . XSS attack sheet updated
1051 . configdoc.xml now has xml:space attached to default value nodes
1052 . Allow configuration directives to permit null values
1053 . Cleaned up test-cases to remove unnecessary swallowErrors()
1055 1.1.2, released 2006-09-30
1056 ! Add HTMLPurifier.auto.php stub file that configures include_path
1057 - Documentation updated
1058 + INSTALL document rewritten
1059 + TODO added semi-lossy conversion
1060 + API Doxygen docs' file exclusions updated
1061 + Added notes on HTML versus XML attribute whitespace handling
1062 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1063 + Noted that config object's definitions are cached versions
1064 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1065 - ftp:// URIs now have their typecodes checked
1066 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1067 . Line endings standardized throughout project (svn:eol-style standardized)
1068 . Refactored parseData() to general Lexer class
1069 . Tester named "HTML Purifier" not "HTMLPurifier"
1071 1.1.1, released 2006-09-24
1072 ! Configuration option to optionally Tidy up output for indentation to make up
1073 for dropped whitespace by DOMLex (pretty-printing for the entire application
1074 should be done by a page-wide Tidy)
1075 - Various documentation updates
1076 - Fixed parse error in configuration documentation script
1077 - Fixed fatal error in benchmark scripts, slightly augmented
1078 - As far as possible, whitespace is preserved in-between table children
1079 - Sample test-settings.php file included
1081 1.1.0, released 2006-09-16
1082 ! Directive documentation generation using XSLT
1083 ! XHTML can now be turned off, output becomes <br>
1084 - Made URI validator more forgiving: will ignore leading and trailing
1085 quotes, apostrophes and less than or greater than signs.
1086 - Enforce alphanumeric namespace and directive names for configuration.
1087 - Table child definition made more flexible, will fix up poorly ordered elements
1088 . Renamed ConfigDef to ConfigSchema
1090 1.0.1, released 2006-09-04
1091 - Fixed slight bug in DOMLex attribute parsing
1092 - Fixed rejection of case-insensitive configuration values when there is a
1093 set of allowed values. This manifested in %Core.Encoding.
1094 - Fixed rejection of inline style declarations that had lots of extra
1095 space in them. This manifested in TinyMCE.
1097 1.0.0, released 2006-09-01
1098 ! Shorthand CSS properties implemented: font, border, background, list-style
1099 ! Basic color keywords translated into hexadecimal values
1100 ! Table CSS properties implemented
1101 ! Support for charsets other than UTF-8 (defined by iconv)
1102 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1103 - Fixed broken numeric entity conversion
1104 - API documentation completed
1105 . (HTML|CSS)Definition de-singleton-ized
1107 1.0.0beta, released 2006-08-16
1108 ! First public release, most functionality implemented. Notable omissions are:
1109 + Shorthand CSS properties
1110 + Table CSS properties
1111 + Deprecated attribute transformations
1113 vim: et sw=4 sts=4