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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 4.9.2, released 2017-03-12
13 - Fixes PHP 5.3 compatibility
14 - Fix breakage when decoding decimal entities. Thanks @rybakit (#129)
16 4.9.1, released 2017-03-08
17 ! %URI.DefaultScheme can now be set to null, in which case
18 all relative paths are removed.
19 ! New CSS properties: min-width, max-width, min-height, max-height (#94)
20 ! Transparency (rgba) and hsl/hsla supported where color CSS is present.
21 Thanks @fxbt for contributing the patch. (#118)
22 - When idn_to_ascii is defined, we might accept malformed
23 hostnames. Apply validation to the result in such cases.
24 - Close directory when done in Serializer DefinitionCache (#100)
25 - Deleted some asserts to avoid linters from choking (#97)
26 - Rework Serializer cache behavior to avoid chmod'ing if possible (#32)
27 - Embedded semicolons in strings in CSS are now handled correctly!
28 - We accidentally dropped certain Unicode characters if there was
29 one or more invalid characters. This has been fixed, thanks
30 to mpyw <ryosuke_i_628@yahoo.co.jp>
31 - Fix for "Don't truncate upon encountering </div> when using DOMLex"
32 caused a regression with HTML 4.01 Strict parsing with libxml 2.9.1
33 (and maybe later versions, but known OK with libxml 2.9.4). The
34 fix is to go about handling truncation a bit more cleverly so that
35 we can wrap with divs (sidestepping the bug) but slurping out the
36 rest of the text in case it ran off the end. (#78)
37 - Fix PREG_BACKTRACK_LIMIT_ERROR in HTMLPurifier_Filter_ExtractStyle.
38 Thanks @breathbath for contributing the report and fix (#120)
39 - Fix entity decoding algorithm to be more conservative about
40 decoding entities that are missing trailing semicolon.
41 To get old behavior, set %Core.LegacyEntityDecoder to true.
42 (#119)
43 - Workaround libxml bug when HTML tags are embedded inside
44 script tags. To disable workaround set %Core.AggressivelyRemoveScript
45 to false. (#83)
46 # By default, when a link has a target attribute associated
47 with it, we now also add rel="noopener" in order to
48 prevent the new window from being able to overwrite
49 the original frame. To disable this protection,
50 set %HTML.TargetNoopener to FALSE.
52 4.9.0 was cut on Git but never properly released; when we did the
53 real release we decided to skip this version number.
55 4.8.0, released 2016-07-16
56 # By default, when a link has a target attribute associated
57 with it, we now also add rel="noreferrer" in order to
58 prevent the new window from being able to overwrite
59 the original frame. To disable this protection,
60 set %HTML.TargetNoreferrer to FALSE.
61 ! Full PHP 7 compatibility, the test suite is ALL GO.
62 ! %CSS.AllowDuplicates permits duplicate CSS properties.
63 ! Support for 'tel' URIs.
64 ! Partial support for 'border-radius' properties when %CSS.AllowProprietary is true.
65 The slash syntax, i.e., 'border-radius: 2em 1em 4em / 0.5em 3em' is not
66 yet supported.
67 ! %Attr.ID.HTML5 turns on HTML5-style ID handling.
68 - alt truncation could result in malformed UTF-8 sequence. Don't
69 truncate. Thanks Brandon Farber for reporting.
70 - Linkify regex is smarter, based off of Gruber's regex.
71 - IDNA supported natively on PHP 5.3 and later.
72 - Non all-numeric top-level names (e.g., foo.1f, 1f) are now
73 allowed.
74 - Minor bounds error fix to squash a PHP 7 notice.
75 - Support non-/tmp temporary directories for data:// validation
76 - Give a better error message when a user attempts to allow
77 ul/ol without allowing li.
78 - On some versions of PHP, the Serializer DefinitionCache could
79 infinite loop when the directory exists but is not listable. (#49)
80 - Don't match for <body> inside comments with
81 %Core.ConvertDocumentToFragment. (#67)
82 - SafeObject is now less case sensitive. (#57)
83 - AutoFormat.RemoveEmpty.Predicate now correctly renders in
84 web form. (#85)
86 4.7.0, released 2015-08-04
87 # opacity is now considered a "tricky" CSS property rather than a
88 proprietary one.
89 ! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when
90 an element should be considered "empty" (maybe preserve if it
91 has attributes), and modify iframe support so that the iframe
92 is removed if it is missing a src attribute. Thanks meeva for
93 reporting.
94 - Don't truncate upon encountering </div> when using DOMLex. Thanks
95 Myrto Christina for finally convincing me to fix this.
96 - Update YouTube filter for new code.
97 - Fix parsing of rgb() values with spaces in them for 'border'
98 attribute.
99 - Don't remove foo="" attributes if foo is a boolean attribute. Thanks
100 valME for reporting.
102 4.6.0, released 2013-11-30
103 # Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).
104 Please update any verification scripts you may have.
105 # URI parsing algorithm was made more strict, so only prefixes which
106 looks like schemes will actually be schemes. Thanks
107 Michael Gusev <mgusev@sugarcrm.com> for fixing.
108 # %Core.EscapeInvalidChildren is no longer supported, and no longer does
109 anything.
110 ! New directive %Core.AllowHostnameUnderscore which allows underscores
111 in hostnames.
112 - Eliminate quadratic behavior in DOMLex by using a proper queue.
113 Thanks Ole Laursen for noticing this.
114 - Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic
115 behavior in the rest of the purificaiton pipeline. Thanks Chedburn
116 Networks for sponsoring this work.
117 - Made Linkify URL parser a bit less permissive, so that non-breaking
118 spaces and commas are not included as part of URL. Thanks nAS for fixing.
119 - Fix some bad interactions with %HTML.Allowed and injectors. Thanks
120 David Hirtz for reporting.
121 - Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)
122 for reporting.
124 4.5.0, released 2013-02-17
125 # Fix bug where stacked attribute transforms clobber each other;
126 this also means it's no longer possible to override attribute
127 transforms in later modules. No internal code was using this
128 but this may break some clients.
129 # We now use SHA-1 to identify cached definitions, instead of MD5.
130 ! Support display:inline-block
131 ! Support for more white-space CSS values.
132 ! Permit underscores in font families
133 ! Support for page-break-* CSS3 properties when proprietary properties
134 are enabled.
135 ! New directive %Core.DisableExcludes; can be set to 'true' to turn off
136 SGML excludes checking. If HTML Purifier is removing too much text
137 and you don't care about full standards compliance, try setting this to
138 'true'.
139 - Use prepend for SPL autoloading on PHP 5.3 and later.
140 - Fix bug with nofollow transform when pre-existing rel exists.
141 - Fix bug where background:url() always gets lower-cased
142 (but not background-image:url())
143 - Fix bug with non lower-case color names in HTML
144 - Fix bug where data URI validation doesn't remove temporary files.
145 Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.
146 - Don't remove certain empty tags on RemoveEmpty.
148 4.4.0, released 2012-01-18
149 # Removed PEARSax3 handler.
150 # URI.Munge now munges URIs inside the same host that go from https
151 to http. Reported by Neike Taika-Tessaro.
152 # Core.EscapeNonASCIICharacters now always transforms entities to
153 entities, even if target encoding is UTF-8.
154 # Tighten up selector validation in ExtractStyleBlocks.
155 Non-syntactically valid selectors are now rejected, along with
156 some of the more obscure ones such as attribute selectors, the
157 :lang pseudoselector, and anything not in CSS2.1. Furthermore,
158 ID and class selectors now work properly with the relevant
159 configuration attributes. Also, mute errors when parsing CSS
160 with CSS Tidy. Reported by Mario Heiderich and Norman Hippert.
161 ! Added support for 'scope' attribute on tables.
162 ! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.
163 ! Properly handle sub-lists directly nested inside of lists in
164 a standards compliant way, by moving them into the preceding <li>
165 ! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for
166 limited allowed comments in untrusted situations.
167 ! Implement iframes, and allow them to be used in untrusted mode with
168 %HTML.SafeIframe and %URI.SafeIframeRegexp. Thanks Bradley M. Froehle
169 <brad.froehle@gmail.com> for submitting an initial version of the patch.
170 ! The Forms module now works properly for transitional doctypes.
171 ! Added support for internationalized domain names. You need the PEAR
172 Net_IDNA2 module to be in your path; if it is installed, ensure the
173 class can be loaded and then set %Core.EnableIDNA to true.
174 - Color keywords are now case insensitive. Thanks Yzmir Ramirez
175 <yramirez-htmlpurifier@adicio.com> for reporting.
176 - Explicitly initialize anonModule variable to null.
177 - Do not duplicate nofollow if already present. Thanks 178
178 for reporting.
179 - Do not add nofollow if hostname matches our current host. Thanks 178
180 for reporting, and Neike Taika-Tessaro for helping diagnose.
181 - Do not unset parser variable; this fixes intermittent serialization
182 problems. Thanks Neike Taika-Tessaro for reporting, bill
183 <10010tiger@gmail.com> for diagnosing.
184 - Fix iconv truncation bug, where non-UTF-8 target encodings see
185 output truncated after around 8000 characters. Thanks Jörg Ludwig
186 <joerg.ludwig@iserv.eu> for reporting.
187 - Fix broken table content model for XHTML1.1 (and also earlier
188 versions, although the W3C validator doesn't catch those violations).
189 Thanks GlitchMr <glitch.mr@gmail.com> for reporting.
191 4.3.0, released 2011-03-27
192 # Fixed broken caching of customized raw definitions, but requires an
193 API change. The old API still works but will emit a warning,
194 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
195 for how to upgrade your code.
196 # Protect against Internet Explorer innerHTML behavior by specially
197 treating attributes with backticks but no angled brackets, quotes or
198 spaces. This constitutes a slight semantic change, which can be
199 reverted using %Output.FixInnerHTML. Reported by Neike Taika-Tessaro
200 and Mario Heiderich.
201 # Protect against cssText/innerHTML by restricting allowed characters
202 used in fonts further than mandated by the specification and encoding
203 some extra special characters in URLs. Reported by Neike
204 Taika-Tessaro and Mario Heiderich.
205 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
206 ! More types of SPL autoloaders allowed on later versions of PHP.
207 ! Implementations for position, top, left, right, bottom, z-index
208 when %CSS.Trusted is on.
209 ! Add %Cache.SerializerPermissions option for custom serializer
210 directory/file permissions
211 ! Fix longstanding bug in Flash support for non-IE browsers, and
212 allow more wmode attributes.
213 ! Add %CSS.AllowedFonts to restrict permissible font names.
214 - Switch to an iterative traversal of the DOM, which prevents us
215 from running out of stack space for deeply nested documents.
216 Thanks Maxim Krizhanovsky for contributing a patch.
217 - Make removal of conditional IE comments ungreedy; thanks Bernd
218 for reporting.
219 - Escape CDATA before removing Internet Explorer comments.
220 - Fix removal of id attributes under certain conditions by ensuring
221 armor attributes are preserved when recreating tags.
222 - Check if schema.ser was corrupted.
223 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
224 This safety check is only done for HTMLPurifier.auto.php; if you
225 are using standalone or the specialized includes files, you're
226 expected to know what you're doing.
227 - Stop repeatedly writing the cache file after I'm done customizing a
228 raw definition. Reported by ajh.
229 - Switch to using require_once in the Bootstrap to work around bad
230 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
231 - Fix URI handling when hostname is missing but scheme is present.
232 Reported by Neike Taika-Tessaro.
233 - Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro
234 for reporting.
235 - Fix harmless notice from indexing into empty string. Thanks Matthijs
236 Kooijman <matthijs@stdin.nl> for reporting.
237 - Don't autoclose no parent elements are able to support the element
238 that triggered the autoclose. In particular fixes strange behavior
239 of stray <li> tags. Thanks pkuliga@gmail.com for reporting and
240 Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.
242 4.2.0, released 2010-09-15
243 ! Added %Core.RemoveProcessingInstructions, which lets you remove
244 <? ... ?> statements.
245 ! Added %URI.DisableResources functionality; the directive originally
246 did nothing. Thanks David Rothstein for reporting.
247 ! Add documentation about configuration directive types.
248 ! Add %CSS.ForbiddenProperties configuration directive.
249 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
250 to utilize full-screen mode.
251 ! Add optional support for the <code>file</code> URI scheme, enable
252 by explicitly setting %URI.AllowedSchemes.
253 ! Add %Core.NormalizeNewlines options to allow turning off newline
254 normalization.
255 - Fix improper handling of Internet Explorer conditional comments
256 by parser. Thanks zmonteca for reporting.
257 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
258 Thanks sidepodcast for the fix.
259 - Warn if an element is allowed, but an attribute it requires is
260 not allowed.
262 4.1.1, released 2010-05-31
263 - Fix undefined index warnings in maintenance scripts.
264 - Fix bug in DirectLex for parsing elements with a single attribute
265 with entities.
266 - Rewrite CSS output logic for font-family and url(). Thanks Mario
267 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
268 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
269 - Emit an error for CollectErrors if a body is extracted
270 - Fix bug where in background-position for center keyword handling.
271 - Fix infinite loop when a wrapper element is inserted in a context
272 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
273 - Remove +x bit and shebang from index.php; only supported mode is to
274 explicitly call it with php.
275 - Make test script less chatty when log_errors is on.
277 4.1.0, released 2010-04-26
278 ! Support proprietary height attribute on table element
279 ! Support YouTube slideshows that contain /cp/ in their URL.
280 ! Support for data: URI scheme; not enabled by default, add it using
281 %URI.AllowedSchemes
282 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
283 ! Support for Internet Explorer compatibility with %HTML.SafeObject
284 using %Output.FlashCompat.
285 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
286 - Always quote the insides of url(...) in CSS.
288 4.0.0, released 2009-07-07
289 # APIs for ConfigSchema subsystem have substantially changed. See
290 docs/dev-config-bcbreaks.txt for details; in essence, anything that
291 had both namespace and directive now have a single unified key.
292 # Some configuration directives were renamed, specifically:
293 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
294 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
295 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
296 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
297 As usual, the old directive names will still work, but will throw E_NOTICE
298 errors.
299 # The allowed values for class have been relaxed to allow all of CDATA for
300 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
301 %Attr.ClassUseCDATA to false.
302 # Instead of appending the content model to an old content model, a blank
303 element will replace the old content model. You can use #SUPER to get
304 the old content model.
305 ! More robust support for name="" and id=""
306 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
307 configuration, and have changes to that configuration be propagated
308 to all of its children.
309 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
310 the name attribute when set. Use with care. Thanks Ian Cook for
311 sponsoring.
312 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
313 tags that contain non-breaking spaces as well other whitespace. You
314 can also modify which tags should have maintained with
315 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
316 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
317 classes users can use to a specified finite set of classes, and
318 %Attr.ForbiddenClasses, which is the logical inverse.
319 ! You can now maintain your own configuration schema directories by
320 creating a config-schema.php file or passing an extra argument. Check
321 docs/dev-config-schema.html for more details.
322 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
323 your configuration in a compact serial file, which you can unserialize
324 and use directly without having to go through the overhead of setup.
325 - Fix bug where URIDefinition would not get cleared if it's directives got
326 changed.
327 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
328 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
329 - Make %URI.Munge not apply to links that have the same host as your host.
330 - Prevent stray </body> tag from truncating output, if a second </body>
331 is present.
332 . Created script maintenance/rename-config.php for renaming a configuration
333 directive while maintaining its alias. This script does not change source code.
334 . Implement namespace locking for definition construction, to prevent
335 bugs where a directive is used for definition construction but is not
336 used to construct the cache hash.
338 3.3.0, released 2009-02-16
339 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
340 ! Implement generic property list classess
341 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
342 does not do the "right thing" with characters not supported in the output
343 set.
344 - Spellcheck UTF-8: The Secret To Character Encoding
345 - Fix improper removal of the contents of elements with only whitespace. Thanks
346 Eric Wald for reporting.
347 - Fix broken test suite in versions of PHP without spl_autoload_register()
348 - Fix degenerate case with YouTube filter involving double hyphens.
349 Thanks Pierre Attar for reporting.
350 - Fix YouTube rendering problem on certain versions of Firefox.
351 - Fix CSSDefinition Printer problems with decorators
352 - Add text parameter to unit tests, forces text output
353 . Add verbose mode to command line test runner, use (--verbose)
354 . Turn on unit tests for UnitConverter
355 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
356 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
357 tested on Linux.
358 . Removed trailing whitespace from all text files, see
359 remote-trailing-whitespace.php maintenance script.
360 . Convert configuration to use property list backend.
362 3.2.0, released 2008-10-31
363 # Using %Core.CollectErrors forces line number/column tracking on, whereas
364 previously you could theoretically turn it off.
365 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
366 use handleEnd() instead.
367 ! %Output.AttrSort for when you need your attributes in alphabetical order to
368 deal with a bug in FCKEditor. Requested by frank farmer.
369 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
370 ! Proper support for name attribute. It is now allowed and equivalent to the id
371 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
372 is heavy (for all doctypes).
373 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
374 use on hand-written HTML.
375 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
376 the strategy to be used, standalone, on untrusted input.
377 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
378 processing of left angled brackets in smileys and other whatnot.
379 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
380 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
381 the --only-phpt parameter, although for backwards-compatibility the flag
382 will still work.
383 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
384 Users who are not performing inbound filtering, this may seem a little
385 useless, but as a bonus, the test suite and handling of edge cases is also
386 improved.
387 ! Experimental implementation of forms for %HTML.Trusted
388 ! Track column numbers when maintain line numbers is on
389 ! Proprietary 'background' attribute on table-related elements converted into
390 corresponding CSS. Thanks Fusemail for sponsoring this feature!
391 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
392 supertype.
393 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
394 time of operation varies slightly from notifyEnd() as *all* end tokens are
395 processed by the injector before they are subject to the well-formedness rules.
396 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
397 basename of image when not present.
398 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
399 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
400 the other involving an undefined $is_folder error.
401 - Throw error when %Core.Encoding is set to a spurious value. Previously,
402 this errored silently and returned false.
403 - Redirected stderr to stdout for flush error output.
404 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
405 available.
406 - Do not re-munge URL if the output URL has the same host as the input URL.
407 Requested by Chris.
408 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
409 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
410 - Fix bug with inline elements in blockquotes conflicting with strict doctype
411 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
412 - Fix bug where dots and double-dots in absolute URLs without hostname were
413 not collapsed by URIFilter_MakeAbsolute.
414 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
415 by reordering their addition.
416 - Will now throw exception on many error conditions during lexer creation; also
417 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
418 is being used.
419 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
420 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
421 Reported by David Morton.
422 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
423 for more interesting filter-backtracking
424 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
425 index to reprocess tokens.
426 . StringHashParser now allows for multiline sections with "empty" content;
427 previously the section would remain undefined.
428 . Added --quick option to multitest.php, which tests only the most recent
429 release for each series.
430 . Added --distro option to multitest.php, which accepts either 'normal' or
431 'standalone'. This supercedes --exclude-normal and --exclude-standalone
433 3.1.1, released 2008-06-19
434 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
435 In order to enable this again, please set %URI.MungeResources to true.
436 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
437 and height/width HTML with %HTML.MaxImgLength.
438 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
439 for sponsoring this feature. Check out the corresponding documentation
440 for details. (Att Nightly testers: The API for this feature changed before
441 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
442 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
443 ! Implemented post URI filtering. Set member variable $post to true to set
444 a URIFilter as such.
445 ! Allow modules to define injectors via $info_injector. Injectors are
446 automatically disabled if injector's needed elements are not found.
447 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
448 Thanks Chris for sponsoring. If you've been using ad hoc code from the
449 forums, PLEASE use this instead.
450 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
451 embedded, tag name, attribute name, CSS property name). See %URI.Munge
452 for more details. Requested by Jochem Blok.
453 - Disable percent height/width attributes for img.
454 - AttrValidator operations are now atomic; updates to attributes are not
455 manifest in token until end of operations. This prevents naughty internal
456 code from directly modifying CurrentToken when they're not supposed to.
457 This semantics change was requested by frank farmer.
458 - Percent encoding checks enabled for URI query and fragment
459 - Fix stray backslashes in font-family; CSS Unicode character escapes are
460 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
461 for reporting.
462 - Improve parseCDATA algorithm to take into account newline normalization
463 - Account for browser confusion between Yen character and backslash in
464 Shift_JIS encoding. This fix generalizes to any other encoding which is not
465 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
466 - Fix missing configuration parameter in Generator calls. Thanks vs for the
467 partial patch.
468 - Improved adherence to Unicode by checking for non-character codepoints.
469 Thanks Geoffrey Sneddon for reporting. This may result in degraded
470 performance for extremely large inputs.
471 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
472 for reporting.
473 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
474 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
475 this class.
476 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
477 to __construct($min, $max). __construct(true) is equivalent to
478 __construct('0').
479 . Added HTMLPurifier_AttrDef_Switch class
480 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
481 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
482 get this called with the configuration object. All modules now
483 use this rather than __construct(), although legacy code using constructors
484 will still work--the new format, however, lets modules access the
485 configuration object for HTML namespace dependant tweaks.
486 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
487 . ConfigSchema data-structure heavily optimized; on average it uses a third
488 the memory it did previously. The interface has changed accordingly,
489 consult changes to HTMLPurifier_Config for details.
490 . Variable parsing types now are magic integers instead of strings
491 . Added benchmark for ConfigSchema
492 . HTMLPurifier_Generator requires $config and $context parameters. If you
493 don't know what they should be, use HTMLPurifier_Config::createDefault()
494 and new HTMLPurifier_Context().
495 . Printers now properly distinguish between output configuration, and
496 target configuration. This is not applicable to scripts using
497 the Printers for HTML Purifier related tasks.
498 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
499 fatal errors will ensue.
500 . URIFilter->prepare can return false in order to abort loading of the filter
501 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
502 an external resource.
503 . %URI.Munge functionality factored out into a post-filter class.
504 . Added CurrentCSSProperty context variable during CSS validation
506 3.1.0, released 2008-05-18
507 # Unnecessary references to objects (vestiges of PHP4) removed from method
508 signatures. The following methods do not need references when assigning from
509 them and will result in E_STRICT errors if you try:
510 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
511 + HTMLPurifier_ConfigSchema::instance()
512 + HTMLPurifier_DefinitionCacheFactory::instance()
513 + HTMLPurifier_DefinitionCacheFactory->create()
514 + HTMLPurifier_DoctypeRegistry->register()
515 + HTMLPurifier_DoctypeRegistry->get()
516 + HTMLPurifier_HTMLModule->addElement()
517 + HTMLPurifier_HTMLModule->addBlankElement()
518 + HTMLPurifier_LanguageFactory::instance()
519 # Printer_ConfigForm's get*() functions were static-ified
520 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
521 form of tag@attr, NOT tag.attr (which will throw an error and won't do
522 anything). This is for forwards compatibility with XML; you'd do best
523 to migrate an %HTML.AllowedAttributes directives to this syntax too.
524 ! Allow index to be false for config from form creation
525 ! Added HTMLPurifier::VERSION constant
526 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
527 and allows for version numbers like "3.1.0-dev".
528 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
529 ! HTML Purifier's URI handling is a lot more robust, with much stricter
530 validation checks and better percent encoding handling. Thanks Gareth Heyes
531 for indicating security vulnerabilities from lax percent encoding.
532 ! Bootstrap autoloader deals more robustly with classes that don't exist,
533 preventing class_exists($class, true) from barfing.
534 - InterchangeBuilder now alphabetizes its lists
535 - Validation error in configdoc output fixed
536 - Iconv and other encoding errors muted even with custom error handlers that
537 do not honor error_reporting
538 - Add protection against imagecrash attack with CSS height/width
539 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
540 - Fixed and revamped broken ConfigForm smoketest
541 - Bug with bool/null fields in Printer_ConfigForm fixed
542 - Bug with global forbidden attributes fixed
543 - Improved error messages for allowed and forbidden HTML elements and attributes
544 - Missing (or null) in configdoc documentation restored
545 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
546 of DOM), HTML Purifier punts to DirectLex
547 - Fatal error with unserialization of ScriptRequired
548 - Created directories are now chmod'ed properly
549 - Fixed bug with fallback languages in LanguageFactory
550 - Standalone testing setup properly with autoload
551 . Out-of-date documentation revised
552 . UTF-8 encoding check optimization as suggested by Diego
553 . HTMLPurifier_Error removed in favor of exceptions
554 . More copy() function removed; should use clone instead
555 . More extensive unit tests for HTMLDefinition
556 . assertPurification moved to central harness
557 . HTMLPurifier_Generator accepts $config and $context parameters during
558 instantiation, not runtime
559 . Double-quotes outside of attribute values are now unescaped
561 3.1.0rc1, released 2008-04-22
562 # Autoload support added. Internal require_once's removed in favor of an
563 explicit require list or autoloading. To use HTML Purifier,
564 you must now either use HTMLPurifier.auto.php
565 or HTMLPurifier.includes.php; setting the include path and including
566 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
567 as well to register our autoload handler (or modify your autoload function
568 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
569 HTMLPurifier.safe-includes.php for a less performance friendly but more
570 user-friendly library load.
571 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
572 information is stored in the ConfigSchema directory, and the
573 maintenance/generate-schema-cache.php generates the schema.ser file, which
574 is now instantiated. Support for userland schema changes coming soon!
575 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
576 alias; to get rid of these errors just modify your configuration to use
577 the new directive name.
578 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
579 enabled using %Filter.$filter_name or by setting your own filters using
580 %Filter.Custom
581 # Directive-level safety properties superceded in favor of module-level
582 safety. Internal method HTMLModule->addElement() has changed, although
583 the externally visible HTMLDefinition->addElement has *not* changed.
584 ! Extra utility classes for testing and non-library operations can
585 be found in extras/. Specifically, these are FSTools and ConfigDoc.
586 You may find a use for these in your own project, but right now they
587 are highly experimental and volatile.
588 ! Integration with PHPT allows for automated smoketests
589 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
590 by Chris. You can enable them with %HTML.Proprietary if your client
591 demands them.
592 ! Support for !important CSS cascade modifier. By default, this will be stripped
593 from CSS, but you can enable it using %CSS.AllowImportant
594 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
595 to true to use them.
596 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
597 Developer error (not enduser error) can cause these to be triggered.
598 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
599 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
600 mucking around with HTMLPurifier_CSSDefinition
601 ! ConfigDoc output has been enhanced with version and deprecation info.
602 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
603 - Autoclose now operates iteratively, i.e. <span><span><div> now has
604 both span tags closed.
605 - Various HTMLPurifier_Config convenience functions now accept another parameter
606 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
607 global default.
608 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
609 - Fix bug in ExtractStyleBlocks with comments in style tags
610 - Fix bug in comment parsing for DirectLex
611 - Flush output now displayed when in command line mode for unit tester
612 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
613 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
614 on the same element without emitting errors.
615 - Fixed fatal error in PH5P lexer with invalid tag names
616 . Plugins now get their own changelogs according to project conventions.
617 . Convert tokens to use instanceof, reducing memory footprint and
618 improving comparison speed.
619 . Dry runs now supported in SimpleTest; testing facilities improved
620 . Bootstrap class added for handling autoloading functionality
621 . Implemented recursive glob at FSTools->globr
622 . ConfigSchema now has instance methods for all corresponding define*
623 static methods.
624 . A couple of new historical maintenance scripts were added.
625 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
626 . tests/index.php can now be run from any directory.
627 . HTMLPurifier_Token subclasses split into seperate files
628 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
629 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
630 . New --php=php flag added, allows PHP executable to be specified (command
631 line only!)
632 . htmlpurifier_add_test() preferred method to translate test files in to
633 classes, because it handles PHPT files too.
634 . Debugger class is deprecated and will be removed soon.
635 . Command line argument parsing for testing scripts revamped, now --opt value
636 format is supported.
637 . Smoketests now cleanup after magic quotes
638 . Generator now can output comments (however, comments are still stripped
639 from HTML Purifier output)
640 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
641 HTMLPurifier_VarParser->parse()
642 . Integers auto-cast into float type by VarParser.
643 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
644 during cache generation
645 . Reordered script calls in maintenance/flush.php
646 . Command line scripts now honor exit codes
647 . When --flush fails in unit testers, abort tests and print message
648 . Improved documentation in docs/dev-flush.html about the maintenance scripts
649 . copy() methods removed in favor of clone keyword
651 3.0.0, released 2008-01-06
652 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
653 until PHP 4 is completely deprecated, but no new features will be added
654 to it.
655 + Visibility declarations added
656 + Constructor methods renamed to __construct()
657 + PHP4 reference cruft removed (in progress)
658 ! CSS properties are now case-insensitive
659 ! DefinitionCacheFactory now can register new implementations
660 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
661 documents and cleaning their contents up. Requires the CSSTidy library
662 <http://csstidy.sourceforge.net/>. You can access the blocks with the
663 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
664 The output CSS can also be "scoped" for a specific element, use:
665 %Filter.ExtractStyleBlocksScope
666 ! Experimental support for some proprietary CSS attributes allowed:
667 opacity (and all of the browser-specific equivalents) and scrollbar colors.
668 Enable by setting %CSS.Proprietary to true.
669 - Colors missing # but in hex form will be corrected
670 - CSS Number algorithm improved
671 - Unit testing and multi-testing now on steroids: command lines,
672 XML output, and other goodies now added.
673 . Unit tests for Injector improved
674 . New classes:
675 + HTMLPurifier_AttrDef_CSS_AlphaValue
676 + HTMLPurifier_AttrDef_CSS_Filter
677 . Multitest now has a file docblock
679 2.1.3, released 2007-11-05
680 ! tests/multitest.php allows you to test multiple versions by running
681 tests/index.php through multiple interpreters using `phpv` shell
682 script (you must provide this script!)
683 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
684 on some systems.
685 - Injector algorithm further refined: off-by-one error regarding skip
686 counts for dormant injectors fixed
687 - Corrective blockquote definition now enabled for HTML 4.01 Strict
688 - Fatal error when <img> tag (or any other element with required attributes)
689 has 'id' attribute fixed, thanks NykO18 for reporting
690 - Fix warning emitted when a non-supported URI scheme is passed to the
691 MakeAbsolute URIFilter, thanks NykO18 (again)
692 - Further refine AutoParagraph injector. Behavior inside of elements
693 allowing paragraph tags clarified: only inline content delimeted by
694 double newlines (not block elements) are paragraphed.
695 - Buggy treatment of end tags of elements that have required attributes
696 fixed (does not manifest on default tag-set)
697 - Spurious internal content reorganization error suppressed
698 - HTMLDefinition->addElement now returns a reference to the created
699 element object, as implied by the documentation
700 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
701 - Fix a theoretical class of infinite loops from DirectLex reported
702 by Nate Abele
703 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
704 in PHP 5.1
705 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
706 HTMLDefinition errors, this may indicate problems with error-collecting
707 facilities in PHP 5
708 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
709 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
710 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
711 to better communicate its purpose
712 . Error unit tests can now specify the expectation of no errors. Future
713 iterations of the harness will be extremely strict about what errors
714 are allowed
715 . Extend Injector hooks to allow for more powerful injector routines
716 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
717 method
718 . Doxygen configuration file updated, with minor improvements
719 . Test runner now checks for similarly named files in conf/ directory too.
720 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
721 outputted
722 . Maintenance script for generating PH5P patch added, original PH5P source
723 file also added under version control
724 . Full unit test runner script title made more descriptive with PHP version
725 . Updated INSTALL file to state that 4.3.7 is the earliest version we
726 are actively testing
728 2.1.2, released 2007-09-03
729 ! Implemented Object module for trusted users
730 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
731 this to your code:
732 require_once 'HTMLPurifier/Lexer/PH5P.php';
733 $config->set('Core', 'LexerImpl', 'PH5P');
734 Note that this Lexer introduces some classes not in the HTMLPurifier
735 namespace. Also, this is PHP5 only.
736 ! CSS property border-spacing implemented
737 - Fix non-visible parsing error in DirectLex with empty tags that have
738 slashes inside attribute values.
739 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
740 accepted as valid CSS. Usually non-visible, because this styling is the
741 default for tables in most browsers. Thanks Brett Zamir for pointing
742 this out.
743 - Fix validation errors in configuration form
744 - Hammer out a bunch of edge-case bugs in the standalone distribution
745 - Inclusion reflection removed from URISchemeRegistry; you must manually
746 include any new schema files you wish to use
747 - Numerous typo fixes in documentation thanks to Brett Zamir
748 . Unit test refactoring for one logical test per test function
749 . Config and context parameters in ComplexHarness deprecated: instead, edit
750 the $config and $context member variables
751 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
752 really make a difference, but is good for completeness sake
753 . merge-library.php script refactored for greater code reusability and
754 PHP4 compatibility
756 2.1.1, released 2007-08-04
757 - Fix show-stopper bug in %URI.MakeAbsolute functionality
758 - Fix PHP4 syntax error in standalone version
759 . Add prefix directory to include path for standalone, this prevents
760 other installations from clobbering the standalone's URI schemes
761 . Single test methods can be invoked by prefixing with __only
763 2.1.0, released 2007-08-02
764 # flush-htmldefinition-cache.php superseded in favor of a generic
765 flush-definition-cache.php script, you can clear a specific cache
766 by passing its name as a parameter to the script
767 ! Phorum mod implemented for HTML Purifier
768 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
769 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
770 for PHP4 (DirectLex).
771 ! Standalone file now available, which greatly reduces the amount of
772 includes (although there are still a few files that reside in the
773 standalone folder)
774 ! Relative URIs can now be transformed into their absolute equivalents
775 using %URI.Base and %URI.MakeAbsolute
776 ! Ruby implemented for XHTML 1.1
777 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
778 for more details
779 ! UTF-8 font names now supported in CSS
780 - AutoFormatters emit friendly error messages if tags or attributes they
781 need are not allowed
782 - ConfigForm's compactification of directive names is now configurable
783 - AutoParagraph autoformatter algorithm refined after field-testing
784 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
785 blockquote wrapping
786 - Contents of <style> tags removed by default when tags are removed
787 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
788 for output cache invalidation
789 . ConfigForm printer now can retrieve CSS and JS files as strings, in
790 case HTML Purifier's directory is not publically accessible
791 . Introduce new text/itext configuration directive values: these represent
792 longer strings that would be more appropriately edited with a textarea
793 . Allow newlines to act as separators for lists, hashes, lookups and
794 %HTML.Allowed
795 . ConfigForm generates textareas instead of text inputs for lists, hashes,
796 lookups, text and itext fields
797 . Hidden element content removal genericized: %Core.HiddenElements can
798 be used to customize this behavior, by default <script> and <style> are
799 hidden
800 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
801 . Custom ChildDef added to default include list
802 . URIScheme reflection improved: will not attempt to include file if class
803 already exists. May clobber autoload, so I need to keep an eye on it
804 . ConfigSchema heavily optimized, will only collect information and validate
805 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
806 . AttrDef_URI unit tests and implementation refactored
807 . benchmarks/ directory now protected from public view with .htaccess file;
808 run the tests via command line
809 . URI scheme is munged off if there is no authority and the scheme is the
810 default one
811 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
812 . Interface for URIScheme changed
813 . Generic URI object to hold components of URI added, most systems involved
814 in URI validation have been migrated to use it
815 . Custom filtering for URIs factored out to URIDefinition interface for
816 maximum extensibility
818 2.0.1, released 2007-06-27
819 ! Tag auto-closing now based on a ChildDef heuristic rather than a
820 manually set auto_close array; some behavior may change
821 ! Experimental AutoFormat functionality added: auto-paragraph and
822 linkify your HTML input by setting %AutoFormat.AutoParagraph and
823 %AutoFormat.Linkify to true
824 ! Newlines normalized internally, and then converted back to the
825 value of PHP_EOL. If this is not desired, set your newline format
826 using %Output.Newline.
827 ! Beta error collection, messages are implemented for the most generic
828 cases involving Lexing or Strategies
829 - Clean up special case code for <script> tags
830 - Reorder includes for DefinitionCache decorators, fixes a possible
831 missing class error
832 - Fixed bug where manually modified definitions were not saved via cache
833 (mostly harmless, except for the fact that it would be a little slower)
834 - Configuration objects with different serials do not clobber each
835 others when revision numbers are unequal
836 - Improve Serializer DefinitionCache directory permissions checks
837 - DefinitionCache no longer throws errors when it encounters old
838 serial files that do not conform to the current style
839 - Stray xmlns attributes removed from configuration documentation
840 - configForm.php smoketest no longer has XSS vulnerability due to
841 unescaped print_r output
842 - Printer adheres to configuration's directives on output format
843 - Fix improperly named form field in ConfigForm printer
844 . Rewire some test-cases to swallow errors rather than expect them
845 . HTMLDefinition printer updated with some of the new attributes
846 . DefinitionCache keys reordered to reflect precedence: version number,
847 hash, then revision number
848 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
849 . Interlinking in configuration documentation added using
850 Injector_PurifierLinkify
851 . Directives now keep track of aliases to themselves
852 . Error collector now requires a severity to be passed, use PHP's internal
853 error constants for this
854 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
855 much easier selective embedding of configuration values
856 . Doctype objects now accept public and system DTD identifiers
857 . %HTML.Doctype is now constrained by specific values, to specify a custom
858 doctype use new %HTML.CustomDoctype
859 . ConfigForm truncates long directives to keep the form small, and does
860 not re-output namespaces
862 2.0.0, released 2007-06-20
863 # Completely refactored HTMLModuleManager, decentralizing safety
864 information
865 # Transform modules changed to Tidy modules, which offer more flexibility
866 and better modularization
867 # Configuration object now finalizes itself when a read operation is
868 performed on it, ensuring that its internal state stays consistent.
869 To revert this behavior, you can set the $autoFinalize member variable
870 off, but it's not recommended.
871 # New compact syntax for AttrDef objects that can be used to instantiate
872 new objects via make()
873 # Definitions (esp. HTMLDefinition) are now cached for a significant
874 performance boost. You can disable caching by setting %Core.DefinitionCache
875 to null. You CANNOT edit raw definitions without setting the corresponding
876 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
877 # Contents between <script> tags are now completely removed if <script>
878 is not allowed
879 # Prototype-declarations for Lexer removed in favor of configuration
880 determination of Lexer implementations.
881 ! HTML Purifier now works in PHP 4.3.2.
882 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
883 breeze!
884 ! Configuration directives that accept hashes now allow new string
885 format: key1:value1,key2:value2
886 ! ConfigDoc now factored into OOP design
887 ! All deprecated elements now natively supported
888 ! Implement TinyMCE styled whitelist specification format in
889 %HTML.Allowed
890 ! Config object gives more friendly error messages when things go wrong
891 ! Advanced API implemented: easy functions for creating elements (addElement)
892 and attributes (addAttribute) on HTMLDefinition
893 ! Add native support for required attributes
894 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
895 - DOMLex will not emit errors when a custom error handler that does not
896 honor error_reporting is used
897 - StrictBlockquote child definition refrains from wrapping whitespace
898 in tags now.
899 - Bug resulting from tag transforms to non-allowed elements fixed
900 - ChildDef_Custom's regex generation has been improved, removing several
901 false positives
902 . Unit test for ElementDef created, ElementDef behavior modified to
903 be more flexible
904 . Added convenience functions for HTMLModule constructors
905 . AttrTypes now has accessor functions that should be used instead
906 of directly manipulating info
907 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
908 . Add extra protection in AttrDef_URI against phantom Schemes
909 . Doctype object added to HTMLDefinition which describes certain aspects
910 of the operational document type
911 . Lexer is now pre-emptively included, with a conditional include for the
912 PHP5 only version.
913 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
914 . DirectLex can now track line-numbers
915 . Preliminary error collector is in place, although no code actually reports
916 errors yet
917 . Factor out most of ValidateAttributes to new AttrValidator class
919 1.6.1, released 2007-05-05
920 ! Support for more deprecated attributes via transformations:
921 + hspace and vspace in img
922 + size and noshade in hr
923 + nowrap in td
924 + clear in br
925 + align in caption, table, img and hr
926 + type in ul, ol and li
927 ! DirectLex now preserves text in which a < bracket is followed by
928 a non-alphanumeric character. This means that certain emoticons
929 are now preserved.
930 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
931 images will hang around with an empty src
932 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
933 to enable
934 ! CSS property white-space now allows nowrap (supported in all modern
935 browsers) but not others (which have spotty browser implementations)
936 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
937 lang is now moved over to xml:lang.
938 ! Attribute transformation smoketest available at smoketests/attrTransform.php
939 ! Transformation of font's size attribute now handles super-large numbers
940 - Possibly fatal bug with __autoload() fixed in module manager
941 - Invert HTMLModuleManager->addModule() processing order to check
942 prefixes first and then the literal module
943 - Empty strings get converted to empty arrays instead of arrays with
944 an empty string in them.
945 - Merging in attribute lists now works.
946 . Demo script removed: it has been added to the website's repository
947 . Basic.php script modified to work out of the box
948 . Refactor AttrTransform classes to reduce duplication
949 . AttrTransform_TextAlign axed in favor of a more general
950 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
951 see how the new equivalent is implemented
952 . Unit tests now use exclusively assertIdentical
954 1.6.0, released 2007-04-01
955 ! Support for most common deprecated attributes via transformations:
956 + bgcolor in td, th, tr and table
957 + border in img
958 + name in a and img
959 + width in td, th and hr
960 + height in td, th
961 ! Support for CSS attribute 'height' added
962 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
963 and %Attr.AllowedRev to activate
964 - You can define ID blacklists using regular expressions via
965 %Attr.IDBlacklistRegexp
966 - Error messages are emitted when you attempt to "allow" elements or
967 attributes that HTML Purifier does not support
968 - Fix segfault in unit test. The problem is not very reproduceable and
969 I don't know what causes it, but a six line patch fixed it.
971 1.5.0, released 2007-03-23
972 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
973 doesn't actually do anything yet, but keep your eyes peeled.
974 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
975 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
976 I am loathe to release beta quality APIs, but this is exactly that;
977 don't use the internal interfaces if you're not willing to do migration
978 later on.
979 - Allow 'x' subtag in language codes
980 - Fixed buggy chameleon-support for ins and del
981 . Added support for IDREF attributes (i.e. for)
982 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
983 . Removed context variable ParentType, replaced with IsInline, which
984 is false when you're not inline and an integer of the parent that
985 caused you to become inline when you are (so possibly zero)
986 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
987 and HTMLDefinition->content_sets
988 . StrictBlockquote now reports what elements its supposed to allow,
989 rather than what it does allow
990 . Removed HTMLDefinition->info_flow_elements in favor of
991 HTMLDefinition->content_sets['Flow']
992 . Removed redundant "exclusionary" definitions from DTD roster
993 . StrictBlockquote now requires a construction parameter as if it
994 were an Required ChildDef, this is the "real" set of allowed elements
995 . AttrDef partitioned into HTML, CSS and URI segments
996 . Modify Youtube filter regexp to be multiline
997 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
998 some edge cases where a DOMDocument class exists in a PHP4 environment
999 due to DOM XML extension.
1001 1.4.1, released 2007-01-21
1002 ! docs/enduser-youtube.html updated according to new functionality
1003 - YouTube IDs can have underscores and dashes
1005 1.4.0, released 2007-01-21
1006 ! Implemented list-style-image, URIs now allowed in list-style
1007 ! Implemented background-image, background-repeat, background-attachment
1008 and background-position CSS properties. Shorthand property background
1009 supports all of these properties.
1010 ! Configuration documentation looks nicer
1011 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
1012 characters while %Core.Encoding is set to a non-UTF-8 encoding.
1013 ! Support for configuration directive aliases added
1014 ! Config object can now be instantiated from ini files
1015 ! YouTube preservation code added to the core, with two lines of code
1016 you can add it as a filter to your code. See smoketests/preserveYouTube.php
1017 for sample code.
1018 ! Moved SLOW to docs/enduser-slow.html and added code examples
1019 - Replaced version check with functionality check for DOM (thanks Stephen
1020 Khoo)
1021 . Added smoketest 'all.php', which loads all other smoketests via frames
1022 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
1023 . Added convenient single test selector form on test runner
1025 1.3.2, released 2006-12-25
1026 ! HTMLPurifier object now accepts configuration arrays, no need to manually
1027 instantiate a configuration object
1028 ! Context object now accessible to outside
1029 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
1030 also corresponding smoketest preserveYouTube.php.
1031 ! Added purifyArray(), which takes a list of HTML and purifies it all
1032 ! Added static member variable $version to HTML Purifier with PHP-compatible
1033 version number string.
1034 - Fixed fatal error thrown by upper-cased language attributes
1035 - printDefinition.php: added labels, added better clarification
1036 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
1037 a HTMLPurifier_Config object.
1039 1.3.1, released 2006-12-06
1040 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
1041 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
1042 (thanks to .mario for reporting this)
1043 . Standardized all attribute handling variables to attr, made it plural
1045 1.3.0, released 2006-11-26
1046 # Invalid images are now removed, rather than replaced with a dud
1047 <img src="" alt="Invalid image" />. Previous behavior can be restored
1048 with new directive %Core.RemoveInvalidImg set to false.
1049 ! (X)HTML Strict now supported
1050 + Transparently handles inline elements in block context (blockquote)
1051 ! Added GET method to demo for easier validation, added 50kb max input size
1052 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
1053 ! New directive %HTML.Parent, allows you to only allow inline content
1054 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
1055 users narrow the set of allowed tags
1056 ! <li value="4"> and <ul start="2"> now allowed in loose mode
1057 ! New directives %URI.DisableExternalResources and %URI.DisableResources
1058 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
1059 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
1060 service to avoid PageRank leaks or warn users that they are exiting your site.
1061 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
1062 the configuration settings and see how the internal rules are affected.
1063 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
1064 xssAttacks.php smoketest updated accordingly.
1065 - Added missing type to ChildDef_Chameleon
1066 - Remove Tidy option from demo if there is not Tidy available
1067 . ChildDef_Required guards against empty tags
1068 . Lookup table HTMLDefinition->info_flow_elements added
1069 . Added peace-of-mind variable initialization to Strategy_FixNesting
1070 . Added HTMLPurifier->info_parent_def, parent child processing made special
1071 . Added internal documents briefly summarizing future progression of HTML
1072 . HTMLPurifier_Config->getBatch($namespace) added
1073 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
1074 . Refactored ChildDef classes into their own files
1076 1.2.0, released 2006-11-19
1077 # ID attributes now disabled by default. New directives:
1078 + %HTML.EnableAttrID - restores old behavior by allowing IDs
1079 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
1080 so that they don't collide with your IDs
1081 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
1082 instances of user content on the page
1083 + Profuse documentation on how to use these available in docs/enduser-id.txt
1084 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
1085 ! Added percent encoding normalization
1086 ! XSS attacks smoketest given facelift
1087 ! Configuration documentation now has table of contents
1088 ! Added %URI.DisableExternal, which prevents links to external websites. You
1089 can also use %URI.Host to permit absolute linking to subdomains
1090 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
1091 - Type variable in HTMLDefinition was not being set properly, fixed
1092 - Documentation updated
1093 + TODO added request Phalanger
1094 + TODO added request Native compression
1095 + TODO added request Remove redundant tags
1096 + TODO added possible plaintext formatter for HTML Purifier documentation
1097 + Updated ConfigDoc TODO
1098 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
1099 and AttrDef/Host.php
1100 + Revamped documentation into HTML, along with misc updates
1101 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
1102 to retrieve a non-existent variable
1103 . Switched to purify()-wide Context object registry
1104 . Refactored unit tests to minimize duplication
1105 . XSS attack sheet updated
1106 . configdoc.xml now has xml:space attached to default value nodes
1107 . Allow configuration directives to permit null values
1108 . Cleaned up test-cases to remove unnecessary swallowErrors()
1110 1.1.2, released 2006-09-30
1111 ! Add HTMLPurifier.auto.php stub file that configures include_path
1112 - Documentation updated
1113 + INSTALL document rewritten
1114 + TODO added semi-lossy conversion
1115 + API Doxygen docs' file exclusions updated
1116 + Added notes on HTML versus XML attribute whitespace handling
1117 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
1118 + Noted that config object's definitions are cached versions
1119 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1120 - ftp:// URIs now have their typecodes checked
1121 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
1122 . Line endings standardized throughout project (svn:eol-style standardized)
1123 . Refactored parseData() to general Lexer class
1124 . Tester named "HTML Purifier" not "HTMLPurifier"
1126 1.1.1, released 2006-09-24
1127 ! Configuration option to optionally Tidy up output for indentation to make up
1128 for dropped whitespace by DOMLex (pretty-printing for the entire application
1129 should be done by a page-wide Tidy)
1130 - Various documentation updates
1131 - Fixed parse error in configuration documentation script
1132 - Fixed fatal error in benchmark scripts, slightly augmented
1133 - As far as possible, whitespace is preserved in-between table children
1134 - Sample test-settings.php file included
1136 1.1.0, released 2006-09-16
1137 ! Directive documentation generation using XSLT
1138 ! XHTML can now be turned off, output becomes <br>
1139 - Made URI validator more forgiving: will ignore leading and trailing
1140 quotes, apostrophes and less than or greater than signs.
1141 - Enforce alphanumeric namespace and directive names for configuration.
1142 - Table child definition made more flexible, will fix up poorly ordered elements
1143 . Renamed ConfigDef to ConfigSchema
1145 1.0.1, released 2006-09-04
1146 - Fixed slight bug in DOMLex attribute parsing
1147 - Fixed rejection of case-insensitive configuration values when there is a
1148 set of allowed values. This manifested in %Core.Encoding.
1149 - Fixed rejection of inline style declarations that had lots of extra
1150 space in them. This manifested in TinyMCE.
1152 1.0.0, released 2006-09-01
1153 ! Shorthand CSS properties implemented: font, border, background, list-style
1154 ! Basic color keywords translated into hexadecimal values
1155 ! Table CSS properties implemented
1156 ! Support for charsets other than UTF-8 (defined by iconv)
1157 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
1158 - Fixed broken numeric entity conversion
1159 - API documentation completed
1160 . (HTML|CSS)Definition de-singleton-ized
1162 1.0.0beta, released 2006-08-16
1163 ! First public release, most functionality implemented. Notable omissions are:
1164 + Shorthand CSS properties
1165 + Table CSS properties
1166 + Deprecated attribute transformations
1168 vim: et sw=4 sts=4