150 lines
6.7 KiB
Text
150 lines
6.7 KiB
Text
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TODO List
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= KEY ====================
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# Flagship
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- Regular
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? Maybe I'll Do It
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==========================
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If no interest is expressed for a feature that may require a considerable
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amount of effort to implement, it may get endlessly delayed. Do not be
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afraid to cast your vote for the next feature to be implemented!
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Things to do as soon as possible:
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- http://htmlpurifier.org/phorum/read.php?3,5560,6307#msg-6307
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- Think about allowing explicit order of operations hooks for transforms
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- Fix "<.<" bug (trailing < is removed if not EOD)
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- Build in better internal state dumps and debugging tools for remote
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debugging
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- Allowed/Allowed* have strange interactions when both set
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? Transform lone embeds into object tags
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- Deprecated config options that emit warnings when you set them (with'
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a way of muting the warning if you really want to)
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- Make HTML.Trusted work with Output.FlashCompat
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- HTML.Trusted and HTML.SafeObject have funny interaction; general
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problem is what to do when a module "supersedes" another
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(see also tables and basic tables.) This is a little dicier
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because HTML.SafeObject has some extra functionality that
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trusted might find useful. See http://htmlpurifier.org/phorum/read.php?3,5762,6100
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FUTURE VERSIONS
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---------------
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4.8 release [OMG CONFIG PONIES]
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! Fix Printer. It's from the old days when we didn't have decent XML classes
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! Factor demo.php into a set of Printer classes, and then create a stub
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file for users here (inside the actual HTML Purifier library)
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- Fix error handling with form construction
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- Do encoding validation in Printers, or at least, where user data comes in
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- Config: Add examples to everything (make built-in which also automatically
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gives output)
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- Add "register" field to config schemas to eliminate dependence on
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naming conventions (try to remember why we ultimately decided on tihs)
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5.0 release [HTML 5]
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# Swap out code to use html5lib tokenizer and tree-builder
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! Allow turning off of FixNesting and required attribute insertion
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5.1 release [It's All About Trust] (floating)
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# Implement untrusted, dangerous elements/attributes
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# Implement IDREF support (harder than it seems, since you cannot have
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IDREFs to non-existent IDs)
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- Implement <area> (client and server side image maps are blocking
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on IDREF support)
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# Frameset XHTML 1.0 and HTML 4.01 doctypes
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- Figure out how to simultaneously set %CSS.Trusted and %HTML.Trusted (?)
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5.2 release [Error'ed]
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# Error logging for filtering/cleanup procedures
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# Additional support for poorly written HTML
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- Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
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- Friendly strict handling of <address> (block -> <br>)
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- XSS-attempt detection--certain errors are flagged XSS-like
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- Append something to duplicate IDs so they're still usable (impl. note: the
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dupe detector would also need to detect the suffix as well)
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6.0 release [Beyond HTML]
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# Legit token based CSS parsing (will require revamping almost every
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AttrDef class). Probably will use CSSTidy
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# More control over allowed CSS properties using a modularization
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# IRI support (this includes IDN)
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- Standardize token armor for all areas of processing
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7.0 release [To XML and Beyond]
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- Extended HTML capabilities based on namespacing and tag transforms (COMPLEX)
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- Hooks for adding custom processors to custom namespaced tags and
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attributes, offer default implementation
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- Lots of documentation and samples
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Ongoing
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- More refactoring to take advantage of PHP5's facilities
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- Refactor unit tests into lots of test methods
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- Plugins for major CMSes (COMPLEX)
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- phpBB
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- Also, a FAQ for extension writers with HTML Purifier
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AutoFormat
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- Smileys
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- Syntax highlighting (with GeSHi) with <pre> and possibly <?php
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- Look at http://drupal.org/project/Modules/category/63 for ideas
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Neat feature related
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! Support exporting configuration, so users can easily tweak settings
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in the demo, and then copy-paste into their own setup
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- Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
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- Allow scoped="scoped" attribute in <style> tags; may be troublesome
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because regular CSS has no way of uniquely identifying nodes, so we'd
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have to generate IDs
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- Explain how to use HTML Purifier in non-PHP languages / create
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a simple command line stub (or complicated?)
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- Fixes for Firefox's inability to handle COL alignment props (Bug 915)
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- Automatically add non-breaking spaces to empty table cells when
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empty-cells:show is applied to have compatibility with Internet Explorer
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- Table of Contents generation (XHTML Compiler might be reusable). May also
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be out-of-band information.
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- Full set of color keywords. Also, a way to add onto them without
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finalizing the configuration object.
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- Write a var_export and memcached DefinitionCache - Denis
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- Built-in support for target="_blank" on all external links
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- Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
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Also, enable disabling of directionality
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? Externalize inline CSS to promote clean HTML, proposed by Sander Tekelenburg
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? Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes:
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1. Analyzing which tags to remove duplicants
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2. Ensure attributes are merged into the parent tag
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3. Extend the tag exclusion system to specify whether or not the
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contents should be dropped or not (currently, there's code that could do
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something like this if it didn't drop the inner text too.)
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? Make AutoParagraph also support paragraph-izing double <br> tags, and not
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just double newlines. This is kind of tough to do in the current framework,
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though, and might be reasonably approximated by search replacing double <br>s
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with newlines before running it through HTML Purifier.
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Maintenance related (slightly boring)
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# CHMOD install script for PEAR installs
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! Factor out command line parser into its own class, and unit test it
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- Reduce size of internal data-structures (esp. HTMLDefinition)
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- Allow merging configurations. Thus,
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a -> b -> default
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c -> d -> default
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becomes
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a -> b -> c -> d -> default
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Maybe allow more fine-grained tuning of this behavior. Alternatively,
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encourage people to use short plist depths before building them up.
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- Time PHPT tests
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ChildDef related (very boring)
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- Abstract ChildDef_BlockQuote to work with all elements that only
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allow blocks in them, required or optional
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- Implement lenient <ruby> child validation
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Wontfix
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- Non-lossy smart alternate character encoding transformations (unless
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patch provided)
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- Pretty-printing HTML: users can use Tidy on the output on entire page
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- Native content compression, whitespace stripping: use gzip if this is
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really important
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vim: et sw=4 sts=4
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