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NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier

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= KEY ====================

# Breaks back-compat

! Feature

- Bugfix

+ Sub-comment

. Internal change

==========================

4.6.0, released 2013-11-30

# Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).

Please update any verification scripts you may have.

# URI parsing algorithm was made more strict, so only prefixes which

looks like schemes will actually be schemes.  Thanks

Michael Gusev <mgusev@sugarcrm.com> for fixing.

# %Core.EscapeInvalidChildren is no longer supported, and no longer does

anything.

! New directive %Core.AllowHostnameUnderscore which allows underscores

in hostnames.

- Eliminate quadratic behavior in DOMLex by using a proper queue.

Thanks Ole Laursen for noticing this.

- Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic

behavior in the rest of the purificaiton pipeline.  Thanks Chedburn

Networks for sponsoring this work.

- Made Linkify URL parser a bit less permissive, so that non-breaking

spaces and commas are not included as part of URL.  Thanks nAS for fixing.

- Fix some bad interactions with %HTML.Allowed and injectors.  Thanks

David Hirtz for reporting.

- Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)

for reporting.

4.5.0, released 2013-02-17

# Fix bug where stacked attribute transforms clobber each other;

this also means it's no longer possible to override attribute

transforms in later modules.  No internal code was using this

but this may break some clients.

# We now use SHA-1 to identify cached definitions, instead of MD5.

! Support display:inline-block

! Support for more white-space CSS values.

! Permit underscores in font families

! Support for page-break-* CSS3 properties when proprietary properties

are enabled.

! New directive %Core.DisableExcludes; can be set to 'true' to turn off

SGML excludes checking.  If HTML Purifier is removing too much text

and you don't care about full standards compliance, try setting this to

'true'.

- Use prepend for SPL autoloading on PHP 5.3 and later.

- Fix bug with nofollow transform when pre-existing rel exists.

- Fix bug where background:url() always gets lower-cased

(but not background-image:url())

- Fix bug with non lower-case color names in HTML

- Fix bug where data URI validation doesn't remove temporary files.

Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.

- Don't remove certain empty tags on RemoveEmpty.

4.4.0, released 2012-01-18

# Removed PEARSax3 handler.

# URI.Munge now munges URIs inside the same host that go from https

to http.  Reported by Neike Taika-Tessaro.

# Core.EscapeNonASCIICharacters now always transforms entities to

entities, even if target encoding is UTF-8.

# Tighten up selector validation in ExtractStyleBlocks.

Non-syntactically valid selectors are now rejected, along with

some of the more obscure ones such as attribute selectors, the

:lang pseudoselector, and anything not in CSS2.1.  Furthermore,

ID and class selectors now work properly with the relevant

configuration attributes.  Also, mute errors when parsing CSS

with CSS Tidy.  Reported by Mario Heiderich and Norman Hippert.

! Added support for 'scope' attribute on tables.

! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.

! Properly handle sub-lists directly nested inside of lists in

a standards compliant way, by moving them into the preceding <li>

! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for

limited allowed comments in untrusted situations.

! Implement iframes, and allow them to be used in untrusted mode with

%HTML.SafeIframe and %URI.SafeIframeRegexp.  Thanks Bradley M. Froehle

<brad.froehle@gmail.com> for submitting an initial version of the patch.

! The Forms module now works properly for transitional doctypes.

! Added support for internationalized domain names. You need the PEAR

Net_IDNA2 module to be in your path; if it is installed, ensure the

class can be loaded and then set %Core.EnableIDNA to true.

- Color keywords are now case insensitive.  Thanks Yzmir Ramirez

<yramirez-htmlpurifier@adicio.com> for reporting.

- Explicitly initialize anonModule variable to null.

- Do not duplicate nofollow if already present.  Thanks 178

for reporting.

- Do not add nofollow if hostname matches our current host.  Thanks 178

for reporting, and Neike Taika-Tessaro for helping diagnose.

- Do not unset parser variable; this fixes intermittent serialization

problems.  Thanks Neike Taika-Tessaro for reporting, bill

<10010tiger@gmail.com> for diagnosing.

- Fix iconv truncation bug, where non-UTF-8 target encodings see

output truncated after around 8000 characters.  Thanks Jörg Ludwig

<joerg.ludwig@iserv.eu> for reporting.

- Fix broken table content model for XHTML1.1 (and also earlier

versions, although the W3C validator doesn't catch those violations).

Thanks GlitchMr <glitch.mr@gmail.com> for reporting.

4.3.0, released 2011-03-27

# Fixed broken caching of customized raw definitions, but requires an

API change.  The old API still works but will emit a warning,

see http://htmlpurifier.org/docs/enduser-customize.html#optimized

for how to upgrade your code.

# Protect against Internet Explorer innerHTML behavior by specially

treating attributes with backticks but no angled brackets, quotes or

spaces.  This constitutes a slight semantic change, which can be

reverted using %Output.FixInnerHTML.  Reported by Neike Taika-Tessaro

and Mario Heiderich.

# Protect against cssText/innerHTML by restricting allowed characters

used in fonts further than mandated by the specification and encoding

some extra special characters in URLs.  Reported by Neike

Taika-Tessaro and Mario Heiderich.

! Added %HTML.Nofollow to add rel="nofollow" to external links.

! More types of SPL autoloaders allowed on later versions of PHP.

! Implementations for position, top, left, right, bottom, z-index

when %CSS.Trusted is on.

! Add %Cache.SerializerPermissions option for custom serializer

directory/file permissions

! Fix longstanding bug in Flash support for non-IE browsers, and

allow more wmode attributes.

! Add %CSS.AllowedFonts to restrict permissible font names.

- Switch to an iterative traversal of the DOM, which prevents us

from running out of stack space for deeply nested documents.

Thanks Maxim Krizhanovsky for contributing a patch.

- Make removal of conditional IE comments ungreedy; thanks Bernd

for reporting.

- Escape CDATA before removing Internet Explorer comments.

- Fix removal of id attributes under certain conditions by ensuring

armor attributes are preserved when recreating tags.

- Check if schema.ser was corrupted.

- Check if zend.ze1_compatibility_mode is on, and error out if it is.

This safety check is only done for HTMLPurifier.auto.php; if you

are using standalone or the specialized includes files, you're

expected to know what you're doing.

- Stop repeatedly writing the cache file after I'm done customizing a

raw definition.  Reported by ajh.

- Switch to using require_once in the Bootstrap to work around bad

interaction with Zend Debugger and APC.  Reported by Antonio Parraga.

- Fix URI handling when hostname is missing but scheme is present.

Reported by Neike Taika-Tessaro.

- Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro

for reporting.

- Fix harmless notice from indexing into empty string.  Thanks Matthijs

Kooijman <matthijs@stdin.nl> for reporting.

- Don't autoclose no parent elements are able to support the element

that triggered the autoclose.  In particular fixes strange behavior

of stray <li> tags.  Thanks pkuliga@gmail.com for reporting and

Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.

4.2.0, released 2010-09-15

! Added %Core.RemoveProcessingInstructions, which lets you remove

<? ... ?> statements.

! Added %URI.DisableResources functionality; the directive originally

did nothing.  Thanks David Rothstein for reporting.

! Add documentation about configuration directive types.

! Add %CSS.ForbiddenProperties configuration directive.

! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects

to utilize full-screen mode.

! Add optional support for the <code>file</code> URI scheme, enable

by explicitly setting %URI.AllowedSchemes.

! Add %Core.NormalizeNewlines options to allow turning off newline

normalization.

- Fix improper handling of Internet Explorer conditional comments

by parser.  Thanks zmonteca for reporting.

- Fix missing attributes bug when running on Mac Snow Leopard and APC.

Thanks sidepodcast for the fix.

- Warn if an element is allowed, but an attribute it requires is

not allowed.

4.1.1, released 2010-05-31

- Fix undefined index warnings in maintenance scripts.

- Fix bug in DirectLex for parsing elements with a single attribute

with entities.

- Rewrite CSS output logic for font-family and url().  Thanks Mario

Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi

Terada <t-terada@violet.plala.or.jp> for suggesting the fix.

- Emit an error for CollectErrors if a body is extracted

- Fix bug where in background-position for center keyword handling.

- Fix infinite loop when a wrapper element is inserted in a context

where it's not allowed.  Thanks Lars <lars@renoz.dk> for reporting.

- Remove +x bit and shebang from index.php; only supported mode is to

explicitly call it with php.

- Make test script less chatty when log_errors is on.

4.1.0, released 2010-04-26

! Support proprietary height attribute on table element

! Support YouTube slideshows that contain /cp/ in their URL.

! Support for data: URI scheme; not enabled by default, add it using

%URI.AllowedSchemes

! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.

! Support for Internet Explorer compatibility with %HTML.SafeObject

using %Output.FlashCompat.

! Handle <ol><ol> properly, by inserting the necessary <li> tag.

- Always quote the insides of url(...) in CSS.

4.0.0, released 2009-07-07

# APIs for ConfigSchema subsystem have substantially changed. See

docs/dev-config-bcbreaks.txt for details; in essence, anything that

had both namespace and directive now have a single unified key.

# Some configuration directives were renamed, specifically:

%AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL

%FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping

%FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope

%FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl

As usual, the old directive names will still work, but will throw E_NOTICE

errors.

# The allowed values for class have been relaxed to allow all of CDATA for

doctypes that are not XHTML 1.1 or XHTML 2.0.  For old behavior, set

%Attr.ClassUseCDATA to false.

# Instead of appending the content model to an old content model, a blank

element will replace the old content model.  You can use #SUPER to get

the old content model.

! More robust support for name="" and id=""

! HTMLPurifier_Config::inherit($config) allows you to inherit one

configuration, and have changes to that configuration be propagated

to all of its children.

! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on

the name attribute when set. Use with care. Thanks Ian Cook for

sponsoring.

! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty

tags that contain non-breaking spaces as well other whitespace. You

can also modify which tags should have &nbsp; maintained with

%AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.

! Implement %Attr.AllowedClasses, which allows administrators to restrict

classes users can use to a specified finite set of classes, and

%Attr.ForbiddenClasses, which is the logical inverse.

! You can now maintain your own configuration schema directories by

creating a config-schema.php file or passing an extra argument. Check

docs/dev-config-schema.html for more details.

! Added HTMLPurifier_Config->serialize() method, which lets you save away

your configuration in a compact serial file, which you can unserialize

and use directly without having to go through the overhead of setup.

- Fix bug where URIDefinition would not get cleared if it's directives got

changed.

- Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)

- Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>

- Make %URI.Munge not apply to links that have the same host as your host.

- Prevent stray </body> tag from truncating output, if a second </body>

is present.

. Created script maintenance/rename-config.php for renaming a configuration

directive while maintaining its alias.  This script does not change source code.

. Implement namespace locking for definition construction, to prevent

bugs where a directive is used for definition construction but is not

used to construct the cache hash.

3.3.0, released 2009-02-16

! Implement CSS property 'overflow' when %CSS.AllowTricky is true.

! Implement generic property list classess

- Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation

does not do the "right thing" with characters not supported in the output

set.

- Spellcheck UTF-8: The Secret To Character Encoding

- Fix improper removal of the contents of elements with only whitespace. Thanks

Eric Wald for reporting.

- Fix broken test suite in versions of PHP without spl_autoload_register()

- Fix degenerate case with YouTube filter involving double hyphens.

Thanks Pierre Attar for reporting.

- Fix YouTube rendering problem on certain versions of Firefox.

- Fix CSSDefinition Printer problems with decorators

- Add text parameter to unit tests, forces text output

. Add verbose mode to command line test runner, use (--verbose)

. Turn on unit tests for UnitConverter

. Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)

. Fix newline errors that caused spurious failures when CRLF HTML Purifier was

tested on Linux.

. Removed trailing whitespace from all text files, see

remote-trailing-whitespace.php maintenance script.

. Convert configuration to use property list backend.

3.2.0, released 2008-10-31

# Using %Core.CollectErrors forces line number/column tracking on, whereas

previously you could theoretically turn it off.

# HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please

use handleEnd() instead.

! %Output.AttrSort for when you need your attributes in alphabetical order to

deal with a bug in FCKEditor. Requested by frank farmer.

! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.

! Proper support for name attribute. It is now allowed and equivalent to the id

attribute in a and img tags, and is only converted to id when %HTML.TidyLevel

is heavy (for all doctypes).

! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't

use on hand-written HTML.

! Add error-cases for unsupported elements in MakeWellFormed. This enables

the strategy to be used, standalone, on untrusted input.

! %Core.AggressivelyFixLt is on by default. This causes more sensible

processing of left angled brackets in smileys and other whatnot.

! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',

'phpt', 'vtest', etc. in order to only execute those tests. This supercedes

the --only-phpt parameter, although for backwards-compatibility the flag

will still work.

! AutoParagraph auto-formatter will now preserve double-newlines upon output.

Users who are not performing inbound filtering, this may seem a little

useless, but as a bonus, the test suite and handling of edge cases is also

improved.

! Experimental implementation of forms for %HTML.Trusted

! Track column numbers when maintain line numbers is on

! Proprietary 'background' attribute on table-related elements converted into

corresponding CSS.  Thanks Fusemail for sponsoring this feature!

! Add forward(), forwardUntilEndToken(), backward() and current() to Injector

supertype.

! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The

time of operation varies slightly from notifyEnd() as *all* end tokens are

processed by the injector before they are subject to the well-formedness rules.

! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to

basename of image when not present.

! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.

- Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,

the other involving an undefined $is_folder error.

- Throw error when %Core.Encoding is set to a spurious value. Previously,

this errored silently and returned false.

- Redirected stderr to stdout for flush error output.

- %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not

available.

- Do not re-munge URL if the output URL has the same host as the input URL.

Requested by Chris.

- Fix error in documentation regarding %Filter.ExtractStyleBlocks

- Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment

- Fix bug with inline elements in blockquotes conflicting with strict doctype

- Detect if HTML support is disabled for DOM by checking for loadHTML() method.

- Fix bug where dots and double-dots in absolute URLs without hostname were

not collapsed by URIFilter_MakeAbsolute.

- Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements

by reordering their addition.

- Will now throw exception on many error conditions during lexer creation; also

throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers

is being used.

- Detect if domxml extension is loaded, and use DirectLEx accordingly.

- Improve handling of big numbers with floating point arithmetic in UnitConverter.

Reported by David Morton.

. Strategy_MakeWellFormed now operates in-place, saving memory and allowing

for more interesting filter-backtracking

. New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind

index to reprocess tokens.

. StringHashParser now allows for multiline sections with "empty" content;

previously the section would remain undefined.

. Added --quick option to multitest.php, which tests only the most recent

release for each series.

. Added --distro option to multitest.php, which accepts either 'normal' or

'standalone'. This supercedes --exclude-normal and --exclude-standalone

3.1.1, released 2008-06-19

# %URI.Munge now, by default, does not munge resources (for example, <img src="">)

In order to enable this again, please set %URI.MungeResources to true.

! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,

and height/width HTML with %HTML.MaxImgLength.

! %URI.MungeSecretKey for secure URI munging. Thanks Chris

for sponsoring this feature. Check out the corresponding documentation

for details. (Att Nightly testers: The API for this feature changed before

the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>

%URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)

! Implemented post URI filtering. Set member variable $post to true to set

a URIFilter as such.

! Allow modules to define injectors via $info_injector. Injectors are

automatically disabled if injector's needed elements are not found.

! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.

Thanks Chris for sponsoring. If you've been using ad hoc code from the

forums, PLEASE use this instead.

! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,

embedded, tag name, attribute name, CSS property name). See %URI.Munge

for more details. Requested by Jochem Blok.

- Disable percent height/width attributes for img.

- AttrValidator operations are now atomic; updates to attributes are not

manifest in token until end of operations. This prevents naughty internal

code from directly modifying CurrentToken when they're not supposed to.

This semantics change was requested by frank farmer.

- Percent encoding checks enabled for URI query and fragment

- Fix stray backslashes in font-family; CSS Unicode character escapes are

now properly resolved (although *only* in font-family). Thanks Takeshi Terada

for reporting.

- Improve parseCDATA algorithm to take into account newline normalization

- Account for browser confusion between Yen character and backslash in

Shift_JIS encoding. This fix generalizes to any other encoding which is not

a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.

- Fix missing configuration parameter in Generator calls. Thanks vs for the

partial patch.

- Improved adherence to Unicode by checking for non-character codepoints.

Thanks Geoffrey Sneddon for reporting. This may result in degraded

performance for extremely large inputs.

- Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok

for reporting.

. Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient

handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses

this class.

. API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)

to __construct($min, $max). __construct(true) is equivalent to

__construct('0').

. Added HTMLPurifier_AttrDef_Switch class

. Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method

up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules

get this called with the configuration object.  All modules now

use this rather than __construct(), although legacy code using constructors

will still work--the new format, however, lets modules access the

configuration object for HTML namespace dependant tweaks.

. AttrDef_HTML_Pixels now takes a single construction parameter, pixels.

. ConfigSchema data-structure heavily optimized; on average it uses a third

the memory it did previously. The interface has changed accordingly,

consult changes to HTMLPurifier_Config for details.

. Variable parsing types now are magic integers instead of strings

. Added benchmark for ConfigSchema

. HTMLPurifier_Generator requires $config and $context parameters. If you

don't know what they should be, use HTMLPurifier_Config::createDefault()

and new HTMLPurifier_Context().

. Printers now properly distinguish between output configuration, and

target configuration. This is not applicable to scripts using

the Printers for HTML Purifier related tasks.

. HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise

fatal errors will ensue.

. URIFilter->prepare can return false in order to abort loading of the filter

. Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds

an external resource.

. %URI.Munge functionality factored out into a post-filter class.

. Added CurrentCSSProperty context variable during CSS validation

3.1.0, released 2008-05-18

# Unnecessary references to objects (vestiges of PHP4) removed from method

signatures.  The following methods do not need references when assigning from

them and will result in E_STRICT errors if you try:

+ HTMLPurifier_Config->get*Definition() [* = HTML, CSS]

+ HTMLPurifier_ConfigSchema::instance()

+ HTMLPurifier_DefinitionCacheFactory::instance()

+ HTMLPurifier_DefinitionCacheFactory->create()

+ HTMLPurifier_DoctypeRegistry->register()

+ HTMLPurifier_DoctypeRegistry->get()

+ HTMLPurifier_HTMLModule->addElement()

+ HTMLPurifier_HTMLModule->addBlankElement()

+ HTMLPurifier_LanguageFactory::instance()

# Printer_ConfigForm's get*() functions were static-ified

# %HTML.ForbiddenAttributes requires attribute declarations to be in the

form of tag@attr, NOT tag.attr (which will throw an error and won't do

anything). This is for forwards compatibility with XML; you'd do best

to migrate an %HTML.AllowedAttributes directives to this syntax too.

! Allow index to be false for config from form creation

! Added HTMLPurifier::VERSION constant

! Commas, not dashes, used for serializer IDs. This change is forwards-compatible

and allows for version numbers like "3.1.0-dev".

! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!

! HTML Purifier's URI handling is a lot more robust, with much stricter

validation checks and better percent encoding handling. Thanks Gareth Heyes

for indicating security vulnerabilities from lax percent encoding.

! Bootstrap autoloader deals more robustly with classes that don't exist,

preventing class_exists($class, true) from barfing.

- InterchangeBuilder now alphabetizes its lists

- Validation error in configdoc output fixed

- Iconv and other encoding errors muted even with custom error handlers that

do not honor error_reporting

- Add protection against imagecrash attack with CSS height/width

- HTMLPurifier::instance() created for consistency, is equivalent to getInstance()

- Fixed and revamped broken ConfigForm smoketest

- Bug with bool/null fields in Printer_ConfigForm fixed

- Bug with global forbidden attributes fixed

- Improved error messages for allowed and forbidden HTML elements and attributes

- Missing (or null) in configdoc documentation restored

- If DOM throws and exception during parsing with PH5P (occurs in newer versions

of DOM), HTML Purifier punts to DirectLex

- Fatal error with unserialization of ScriptRequired

- Created directories are now chmod'ed properly

- Fixed bug with fallback languages in LanguageFactory

- Standalone testing setup properly with autoload

. Out-of-date documentation revised

. UTF-8 encoding check optimization as suggested by Diego

. HTMLPurifier_Error removed in favor of exceptions

. More copy() function removed; should use clone instead

. More extensive unit tests for HTMLDefinition

. assertPurification moved to central harness

. HTMLPurifier_Generator accepts $config and $context parameters during

instantiation, not runtime

. Double-quotes outside of attribute values are now unescaped

3.1.0rc1, released 2008-04-22

# Autoload support added. Internal require_once's removed in favor of an

explicit require list or autoloading. To use HTML Purifier,

you must now either use HTMLPurifier.auto.php

or HTMLPurifier.includes.php; setting the include path and including

HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php

as well to register our autoload handler (or modify your autoload function

to check HTMLPurifier_Bootstrap::getPath($class)). You can also use

HTMLPurifier.safe-includes.php for a less performance friendly but more

user-friendly library load.

# HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema

information is stored in the ConfigSchema directory, and the

maintenance/generate-schema-cache.php generates the schema.ser file, which

is now instantiated. Support for userland schema changes coming soon!

# HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive

alias; to get rid of these errors just modify your configuration to use

the new directive name.

# HTMLPurifier->addFilter is deprecated; built-in filters can now be

enabled using %Filter.$filter_name or by setting your own filters using

%Filter.Custom

# Directive-level safety properties superceded in favor of module-level

safety. Internal method HTMLModule->addElement() has changed, although

the externally visible HTMLDefinition->addElement has *not* changed.

! Extra utility classes for testing and non-library operations can

be found in extras/. Specifically, these are FSTools and ConfigDoc.

You may find a use for these in your own project, but right now they

are highly experimental and volatile.

! Integration with PHPT allows for automated smoketests

! Limited support for proprietary HTML elements, namely <marquee>, sponsored

by Chris. You can enable them with %HTML.Proprietary if your client

demands them.

! Support for !important CSS cascade modifier. By default, this will be stripped

from CSS, but you can enable it using %CSS.AllowImportant

! Support for display and visibility CSS properties added, set %CSS.AllowTricky

to true to use them.

! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.

Developer error (not enduser error) can cause these to be triggered.

! Experimental kses() wrapper introduced with HTMLPurifier.kses.php

! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without

mucking around with HTMLPurifier_CSSDefinition

! ConfigDoc output has been enhanced with version and deprecation info.

! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.

- Autoclose now operates iteratively, i.e. <span><span><div> now has

both span tags closed.

- Various HTMLPurifier_Config convenience functions now accept another parameter

$schema which defines what HTMLPurifier_ConfigSchema to use besides the

global default.

- Fix bug with trusted script handling in libxml versions later than 2.6.28.

- Fix bug in ExtractStyleBlocks with comments in style tags

- Fix bug in comment parsing for DirectLex

- Flush output now displayed when in command line mode for unit tester

- Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax

- HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times

on the same element without emitting errors.

- Fixed fatal error in PH5P lexer with invalid tag names

. Plugins now get their own changelogs according to project conventions.

. Convert tokens to use instanceof, reducing memory footprint and

improving comparison speed.

. Dry runs now supported in SimpleTest; testing facilities improved

. Bootstrap class added for handling autoloading functionality

. Implemented recursive glob at FSTools->globr

. ConfigSchema now has instance methods for all corresponding define*

static methods.

. A couple of new historical maintenance scripts were added.

. HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files

. tests/index.php can now be run from any directory.

. HTMLPurifier_Token subclasses split into seperate files

. HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php

. HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier

. New --php=php flag added, allows PHP executable to be specified (command

line only!)

. htmlpurifier_add_test() preferred method to translate test files in to

classes, because it handles PHPT files too.

. Debugger class is deprecated and will be removed soon.

. Command line argument parsing for testing scripts revamped, now --opt value

format is supported.

. Smoketests now cleanup after magic quotes

. Generator now can output comments (however, comments are still stripped

from HTML Purifier output)

. HTMLPurifier_ConfigSchema->validate() deprecated in favor of

HTMLPurifier_VarParser->parse()

. Integers auto-cast into float type by VarParser.

. HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only

during cache generation

. Reordered script calls in maintenance/flush.php

. Command line scripts now honor exit codes

. When --flush fails in unit testers, abort tests and print message

. Improved documentation in docs/dev-flush.html about the maintenance scripts

. copy() methods removed in favor of clone keyword

3.0.0, released 2008-01-06

# HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained

until PHP 4 is completely deprecated, but no new features will be added

to it.

+ Visibility declarations added

+ Constructor methods renamed to __construct()

+ PHP4 reference cruft removed (in progress)

! CSS properties are now case-insensitive

! DefinitionCacheFactory now can register new implementations

! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from

documents and cleaning their contents up. Requires the CSSTidy library

<http://csstidy.sourceforge.net/>. You can access the blocks with the

'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).

The output CSS can also be "scoped" for a specific element, use:

%Filter.ExtractStyleBlocksScope

! Experimental support for some proprietary CSS attributes allowed:

opacity (and all of the browser-specific equivalents) and scrollbar colors.

Enable by setting %CSS.Proprietary to true.

- Colors missing # but in hex form will be corrected

- CSS Number algorithm improved

- Unit testing and multi-testing now on steroids: command lines,

XML output, and other goodies now added.

. Unit tests for Injector improved

. New classes:

+ HTMLPurifier_AttrDef_CSS_AlphaValue

+ HTMLPurifier_AttrDef_CSS_Filter

. Multitest now has a file docblock

2.1.3, released 2007-11-05

! tests/multitest.php allows you to test multiple versions by running

tests/index.php through multiple interpreters using `phpv` shell

script (you must provide this script!)

- Fixed poor include ordering for Email URI AttrDefs, causes fatal errors

on some systems.

- Injector algorithm further refined: off-by-one error regarding skip

counts for dormant injectors fixed

- Corrective blockquote definition now enabled for HTML 4.01 Strict

- Fatal error when <img> tag (or any other element with required attributes)

has 'id' attribute fixed, thanks NykO18 for reporting

- Fix warning emitted when a non-supported URI scheme is passed to the

MakeAbsolute URIFilter, thanks NykO18 (again)

- Further refine AutoParagraph injector. Behavior inside of elements

allowing paragraph tags clarified: only inline content delimeted by

double newlines (not block elements) are paragraphed.

- Buggy treatment of end tags of elements that have required attributes

fixed (does not manifest on default tag-set)

- Spurious internal content reorganization error suppressed

- HTMLDefinition->addElement now returns a reference to the created

element object, as implied by the documentation

- Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)

- Fix a theoretical class of infinite loops from DirectLex reported

by Nate Abele

- Work around unnecessary DOMElement type-cast in PH5P that caused errors

in PHP 5.1

- Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only

HTMLDefinition errors, this may indicate problems with error-collecting

facilities in PHP 5

- Make ErrorCollectorEMock work in both PHP 4 and PHP 5

- Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef

. %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment

to better communicate its purpose

. Error unit tests can now specify the expectation of no errors. Future

iterations of the harness will be extremely strict about what errors

are allowed

. Extend Injector hooks to allow for more powerful injector routines

. HTMLDefinition->addBlankElement created, as according to the HTMLModule

method

. Doxygen configuration file updated, with minor improvements

. Test runner now checks for similarly named files in conf/ directory too.

. Minor cosmetic change to flush-definition-cache.php: trailing newline is

outputted

. Maintenance script for generating PH5P patch added, original PH5P source

file also added under version control

. Full unit test runner script title made more descriptive with PHP version

. Updated INSTALL file to state that 4.3.7 is the earliest version we

are actively testing

2.1.2, released 2007-09-03

! Implemented Object module for trusted users

! Implemented experimental HTML5 parsing mode using PH5P. To use, add

this to your code:

require_once 'HTMLPurifier/Lexer/PH5P.php';

$config->set('Core', 'LexerImpl', 'PH5P');

Note that this Lexer introduces some classes not in the HTMLPurifier

namespace.  Also, this is PHP5 only.

! CSS property border-spacing implemented

- Fix non-visible parsing error in DirectLex with empty tags that have

slashes inside attribute values.

- Fix typo in CSS definition: border-collapse:seperate; was incorrectly

accepted as valid CSS. Usually non-visible, because this styling is the

default for tables in most browsers. Thanks Brett Zamir for pointing

this out.

- Fix validation errors in configuration form

- Hammer out a bunch of edge-case bugs in the standalone distribution

- Inclusion reflection removed from URISchemeRegistry; you must manually

include any new schema files you wish to use

- Numerous typo fixes in documentation thanks to Brett Zamir

. Unit test refactoring for one logical test per test function

. Config and context parameters in ComplexHarness deprecated: instead, edit

the $config and $context member variables

. HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't

really make a difference, but is good for completeness sake

. merge-library.php script refactored for greater code reusability and

PHP4 compatibility

2.1.1, released 2007-08-04

- Fix show-stopper bug in %URI.MakeAbsolute functionality

- Fix PHP4 syntax error in standalone version

. Add prefix directory to include path for standalone, this prevents

other installations from clobbering the standalone's URI schemes

. Single test methods can be invoked by prefixing with __only

2.1.0, released 2007-08-02

# flush-htmldefinition-cache.php superseded in favor of a generic

flush-definition-cache.php script, you can clear a specific cache

by passing its name as a parameter to the script

! Phorum mod implemented for HTML Purifier

! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer

trigger HTML removal in PHP5 (DOMLex). This directive is not necessary

for PHP4 (DirectLex).

! Standalone file now available, which greatly reduces the amount of

includes (although there are still a few files that reside in the

standalone folder)

! Relative URIs can now be transformed into their absolute equivalents

using %URI.Base and %URI.MakeAbsolute

! Ruby implemented for XHTML 1.1

! You can now define custom URI filtering behavior, see enduser-uri-filter.html

for more details

! UTF-8 font names now supported in CSS

- AutoFormatters emit friendly error messages if tags or attributes they

need are not allowed

- ConfigForm's compactification of directive names is now configurable

- AutoParagraph autoformatter algorithm refined after field-testing

- XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely

blockquote wrapping

- Contents of <style> tags removed by default when tags are removed

. HTMLPurifier_Config->getSerial() implemented, this is extremely useful

for output cache invalidation

. ConfigForm printer now can retrieve CSS and JS files as strings, in

case HTML Purifier's directory is not publically accessible

. Introduce new text/itext configuration directive values: these represent

longer strings that would be more appropriately edited with a textarea

. Allow newlines to act as separators for lists, hashes, lookups and

%HTML.Allowed

. ConfigForm generates textareas instead of text inputs for lists, hashes,

lookups, text and itext fields

. Hidden element content removal genericized: %Core.HiddenElements can

be used to customize this behavior, by default <script> and <style> are

hidden

. Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)

. Custom ChildDef added to default include list

. URIScheme reflection improved: will not attempt to include file if class

already exists. May clobber autoload, so I need to keep an eye on it

. ConfigSchema heavily optimized, will only collect information and validate

definitions when HTMLPURIFIER_SCHEMA_STRICT is true.

. AttrDef_URI unit tests and implementation refactored

. benchmarks/ directory now protected from public view with .htaccess file;

run the tests via command line

. URI scheme is munged off if there is no authority and the scheme is the

default one

. All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase

. Interface for URIScheme changed

. Generic URI object to hold components of URI added, most systems involved

in URI validation have been migrated to use it

. Custom filtering for URIs factored out to URIDefinition interface for

maximum extensibility

2.0.1, released 2007-06-27

! Tag auto-closing now based on a ChildDef heuristic rather than a

manually set auto_close array; some behavior may change

! Experimental AutoFormat functionality added: auto-paragraph and

linkify your HTML input by setting %AutoFormat.AutoParagraph and

%AutoFormat.Linkify to true

! Newlines normalized internally, and then converted back to the

value of PHP_EOL. If this is not desired, set your newline format

using %Output.Newline.

! Beta error collection, messages are implemented for the most generic

cases involving Lexing or Strategies

- Clean up special case code for <script> tags

- Reorder includes for DefinitionCache decorators, fixes a possible

missing class error

- Fixed bug where manually modified definitions were not saved via cache

(mostly harmless, except for the fact that it would be a little slower)

- Configuration objects with different serials do not clobber each

others when revision numbers are unequal

- Improve Serializer DefinitionCache directory permissions checks

- DefinitionCache no longer throws errors when it encounters old

serial files that do not conform to the current style

- Stray xmlns attributes removed from configuration documentation

- configForm.php smoketest no longer has XSS vulnerability due to

unescaped print_r output

- Printer adheres to configuration's directives on output format

- Fix improperly named form field in ConfigForm printer

. Rewire some test-cases to swallow errors rather than expect them

. HTMLDefinition printer updated with some of the new attributes

. DefinitionCache keys reordered to reflect precedence: version number,

hash, then revision number

. %Core.DefinitionCache renamed to %Cache.DefinitionImpl

. Interlinking in configuration documentation added using

Injector_PurifierLinkify

. Directives now keep track of aliases to themselves

. Error collector now requires a severity to be passed, use PHP's internal

error constants for this

. HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows

much easier selective embedding of configuration values

. Doctype objects now accept public and system DTD identifiers

. %HTML.Doctype is now constrained by specific values, to specify a custom

doctype use new %HTML.CustomDoctype

. ConfigForm truncates long directives to keep the form small, and does

not re-output namespaces

2.0.0, released 2007-06-20

# Completely refactored HTMLModuleManager, decentralizing safety

information

# Transform modules changed to Tidy modules, which offer more flexibility

and better modularization

# Configuration object now finalizes itself when a read operation is

performed on it, ensuring that its internal state stays consistent.

To revert this behavior, you can set the $autoFinalize member variable

off, but it's not recommended.

# New compact syntax for AttrDef objects that can be used to instantiate

new objects via make()

# Definitions (esp. HTMLDefinition) are now cached for a significant

performance boost. You can disable caching by setting %Core.DefinitionCache

to null. You CANNOT edit raw definitions without setting the corresponding

DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).

# Contents between <script> tags are now completely removed if <script>

is not allowed

# Prototype-declarations for Lexer removed in favor of configuration

determination of Lexer implementations.

! HTML Purifier now works in PHP 4.3.2.

! Configuration form-editing API makes tweaking HTMLPurifier_Config a

breeze!

! Configuration directives that accept hashes now allow new string

format: key1:value1,key2:value2

! ConfigDoc now factored into OOP design

! All deprecated elements now natively supported

! Implement TinyMCE styled whitelist specification format in

%HTML.Allowed

! Config object gives more friendly error messages when things go wrong

! Advanced API implemented: easy functions for creating elements (addElement)

and attributes (addAttribute) on HTMLDefinition

! Add native support for required attributes

- Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!

- DOMLex will not emit errors when a custom error handler that does not

honor error_reporting is used

- StrictBlockquote child definition refrains from wrapping whitespace

in tags now.

- Bug resulting from tag transforms to non-allowed elements fixed

- ChildDef_Custom's regex generation has been improved, removing several

false positives

. Unit test for ElementDef created, ElementDef behavior modified to

be more flexible

. Added convenience functions for HTMLModule constructors

. AttrTypes now has accessor functions that should be used instead

of directly manipulating info

. TagTransform_Center deprecated in favor of generic TagTransform_Simple

. Add extra protection in AttrDef_URI against phantom Schemes

. Doctype object added to HTMLDefinition which describes certain aspects

of the operational document type

. Lexer is now pre-emptively included, with a conditional include for the

PHP5 only version.

. HTMLDefinition and CSSDefinition have a common parent class: Definition.

. DirectLex can now track line-numbers

. Preliminary error collector is in place, although no code actually reports

errors yet

. Factor out most of ValidateAttributes to new AttrValidator class

1.6.1, released 2007-05-05

! Support for more deprecated attributes via transformations:

+ hspace and vspace in img

+ size and noshade in hr

+ nowrap in td

+ clear in br

+ align in caption, table, img and hr

+ type in ul, ol and li

! DirectLex now preserves text in which a < bracket is followed by

a non-alphanumeric character. This means that certain emoticons

are now preserved.

! %Core.RemoveInvalidImg is now operational, when set to false invalid

images will hang around with an empty src

! target attribute in a tag supported, use %Attr.AllowedFrameTargets

to enable

! CSS property white-space now allows nowrap (supported in all modern

browsers) but not others (which have spotty browser implementations)

! XHTML 1.1 mode now sort-of works without any fatal errors, and

lang is now moved over to xml:lang.

! Attribute transformation smoketest available at smoketests/attrTransform.php

! Transformation of font's size attribute now handles super-large numbers

- Possibly fatal bug with __autoload() fixed in module manager

- Invert HTMLModuleManager->addModule() processing order to check

prefixes first and then the literal module

- Empty strings get converted to empty arrays instead of arrays with

an empty string in them.

- Merging in attribute lists now works.

. Demo script removed: it has been added to the website's repository

. Basic.php script modified to work out of the box

. Refactor AttrTransform classes to reduce duplication

. AttrTransform_TextAlign axed in favor of a more general

AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to

see how the new equivalent is implemented

. Unit tests now use exclusively assertIdentical

1.6.0, released 2007-04-01

! Support for most common deprecated attributes via transformations:

+ bgcolor in td, th, tr and table

+ border in img

+ name in a and img

+ width in td, th and hr

+ height in td, th

! Support for CSS attribute 'height' added

! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel

and %Attr.AllowedRev to activate

- You can define ID blacklists using regular expressions via

%Attr.IDBlacklistRegexp

- Error messages are emitted when you attempt to "allow" elements or

attributes that HTML Purifier does not support

- Fix segfault in unit test. The problem is not very reproduceable and

I don't know what causes it, but a six line patch fixed it.

1.5.0, released 2007-03-23

! Added a rudimentary I18N and L10N system modeled off MediaWiki. It

doesn't actually do anything yet, but keep your eyes peeled.

! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier

! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.

I am loathe to release beta quality APIs, but this is exactly that;

don't use the internal interfaces if you're not willing to do migration

later on.

- Allow 'x' subtag in language codes

- Fixed buggy chameleon-support for ins and del

. Added support for IDREF attributes (i.e. for)

. Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens

. Removed context variable ParentType, replaced with IsInline, which

is false when you're not inline and an integer of the parent that

caused you to become inline when you are (so possibly zero)

. Removed ElementDef->type in favor of ElementDef->descendants_are_inline

and HTMLDefinition->content_sets

. StrictBlockquote now reports what elements its supposed to allow,

rather than what it does allow

. Removed HTMLDefinition->info_flow_elements in favor of

HTMLDefinition->content_sets['Flow']

. Removed redundant "exclusionary" definitions from DTD roster

. StrictBlockquote now requires a construction parameter as if it

were an Required ChildDef, this is the "real" set of allowed elements

. AttrDef partitioned into HTML, CSS and URI segments

. Modify Youtube filter regexp to be multiline

. Require both PHP5 and DOM extension in order to use DOMLex, fixes

some edge cases where a DOMDocument class exists in a PHP4 environment

due to DOM XML extension.

1.4.1, released 2007-01-21

! docs/enduser-youtube.html updated according to new functionality

- YouTube IDs can have underscores and dashes

1.4.0, released 2007-01-21

! Implemented list-style-image, URIs now allowed in list-style

! Implemented background-image, background-repeat, background-attachment

and background-position CSS properties. Shorthand property background

supports all of these properties.

! Configuration documentation looks nicer

! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode

characters while %Core.Encoding is set to a non-UTF-8 encoding.

! Support for configuration directive aliases added

! Config object can now be instantiated from ini files

! YouTube preservation code added to the core, with two lines of code

you can add it as a filter to your code. See smoketests/preserveYouTube.php

for sample code.

! Moved SLOW to docs/enduser-slow.html and added code examples

- Replaced version check with functionality check for DOM (thanks Stephen

Khoo)

. Added smoketest 'all.php', which loads all other smoketests via frames

. Implemented AttrDef_CSSURI for url(http://google.com) style declarations

. Added convenient single test selector form on test runner

1.3.2, released 2006-12-25

! HTMLPurifier object now accepts configuration arrays, no need to manually

instantiate a configuration object

! Context object now accessible to outside

! Added enduser-youtube.html, explains how to embed YouTube videos. See

also corresponding smoketest preserveYouTube.php.

! Added purifyArray(), which takes a list of HTML and purifies it all

! Added static member variable $version to HTML Purifier with PHP-compatible

version number string.

- Fixed fatal error thrown by upper-cased language attributes

- printDefinition.php: added labels, added better clarification

. HTMLPurifier_Config::create() added, takes mixed variable and converts into

a HTMLPurifier_Config object.

1.3.1, released 2006-12-06

! Added HTMLPurifier.func.php stub for a convenient function to call the library

- Fixed bug in RemoveInvalidImg code that caused all images to be dropped

(thanks to .mario for reporting this)

. Standardized all attribute handling variables to attr, made it plural

1.3.0, released 2006-11-26

# Invalid images are now removed, rather than replaced with a dud

<img src="" alt="Invalid image" />. Previous behavior can be restored

with new directive %Core.RemoveInvalidImg set to false.

! (X)HTML Strict now supported

+ Transparently handles inline elements in block context (blockquote)

! Added GET method to demo for easier validation, added 50kb max input size

! New directive %HTML.BlockWrapper, for block-ifying inline elements

! New directive %HTML.Parent, allows you to only allow inline content

! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let

users narrow the set of allowed tags

! <li value="4"> and <ul start="2"> now allowed in loose mode

! New directives %URI.DisableExternalResources and %URI.DisableResources

! New directive %Attr.DisableURI, which eliminates all hyperlinking

! New directive %URI.Munge, munges URI so you can use some sort of redirector

service to avoid PageRank leaks or warn users that they are exiting your site.

! Added spiffy new smoketest printDefinition.php, which lets you twiddle with

the configuration settings and see how the internal rules are affected.

! New directive %URI.HostBlacklist for blocking links to bad hosts.

xssAttacks.php smoketest updated accordingly.

- Added missing type to ChildDef_Chameleon

- Remove Tidy option from demo if there is not Tidy available

. ChildDef_Required guards against empty tags

. Lookup table HTMLDefinition->info_flow_elements added

. Added peace-of-mind variable initialization to Strategy_FixNesting

. Added HTMLPurifier->info_parent_def, parent child processing made special

. Added internal documents briefly summarizing future progression of HTML

. HTMLPurifier_Config->getBatch($namespace) added

. More lenient casting to bool from string in HTMLPurifier_ConfigSchema

. Refactored ChildDef classes into their own files

1.2.0, released 2006-11-19

# ID attributes now disabled by default. New directives:

+ %HTML.EnableAttrID - restores old behavior by allowing IDs

+ %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs

so that they don't collide with your IDs

+ %Attr.IDPrefixLocal - Same as above, but for when there are multiple

instances of user content on the page

+ Profuse documentation on how to use these available in docs/enduser-id.txt

! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>

! Added percent encoding normalization

! XSS attacks smoketest given facelift

! Configuration documentation now has table of contents

! Added %URI.DisableExternal, which prevents links to external websites.  You

can also use %URI.Host to permit absolute linking to subdomains

! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)

- Type variable in HTMLDefinition was not being set properly, fixed

- Documentation updated

+ TODO added request Phalanger

+ TODO added request Native compression

+ TODO added request Remove redundant tags

+ TODO added possible plaintext formatter for HTML Purifier documentation

+ Updated ConfigDoc TODO

+ Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php

and AttrDef/Host.php

+ Revamped documentation into HTML, along with misc updates

- HTMLPurifier_Context doesn't throw a variable reference error if you attempt

to retrieve a non-existent variable

. Switched to purify()-wide Context object registry

. Refactored unit tests to minimize duplication

. XSS attack sheet updated

. configdoc.xml now has xml:space attached to default value nodes

. Allow configuration directives to permit null values

. Cleaned up test-cases to remove unnecessary swallowErrors()

1.1.2, released 2006-09-30

! Add HTMLPurifier.auto.php stub file that configures include_path

- Documentation updated

+ INSTALL document rewritten

+ TODO added semi-lossy conversion

+ API Doxygen docs' file exclusions updated

+ Added notes on HTML versus XML attribute whitespace handling

+ Noted that HTMLPurifier_ChildDef_Custom isn't being used

+ Noted that config object's definitions are cached versions

- Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3

- ftp:// URIs now have their typecodes checked

- Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)

. Line endings standardized throughout project (svn:eol-style standardized)

. Refactored parseData() to general Lexer class

. Tester named "HTML Purifier" not "HTMLPurifier"

1.1.1, released 2006-09-24

! Configuration option to optionally Tidy up output for indentation to make up

for dropped whitespace by DOMLex (pretty-printing for the entire application

should be done by a page-wide Tidy)

- Various documentation updates

- Fixed parse error in configuration documentation script

- Fixed fatal error in benchmark scripts, slightly augmented

- As far as possible, whitespace is preserved in-between table children

- Sample test-settings.php file included

1.1.0, released 2006-09-16

! Directive documentation generation using XSLT

! XHTML can now be turned off, output becomes <br>

- Made URI validator more forgiving: will ignore leading and trailing

quotes, apostrophes and less than or greater than signs.

- Enforce alphanumeric namespace and directive names for configuration.

- Table child definition made more flexible, will fix up poorly ordered elements

. Renamed ConfigDef to ConfigSchema

1.0.1, released 2006-09-04

- Fixed slight bug in DOMLex attribute parsing

- Fixed rejection of case-insensitive configuration values when there is a

set of allowed values.  This manifested in %Core.Encoding.

- Fixed rejection of inline style declarations that had lots of extra

space in them.  This manifested in TinyMCE.

1.0.0, released 2006-09-01

! Shorthand CSS properties implemented: font, border, background, list-style

! Basic color keywords translated into hexadecimal values

! Table CSS properties implemented

! Support for charsets other than UTF-8 (defined by iconv)

! Malformed UTF-8 and non-SGML character detection and cleaning implemented

- Fixed broken numeric entity conversion

- API documentation completed

. (HTML|CSS)Definition de-singleton-ized

1.0.0beta, released 2006-08-16

! First public release, most functionality implemented. Notable omissions are:

+ Shorthand CSS properties

+ Table CSS properties

+ Deprecated attribute transformations

vim: et sw=4 sts=4

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