Backward Compatibility Breaking Horde Issues (aka Horde 4.0 TODO)

Switch to HTML 4.01 Transitional

Switch to Horde_Policy for configuration

Fix cloning behavior (See Bug 1410).

Remove $foo = &new Foo(); calls and replace with $foo = new Foo(); - The former is deprecated as of PHP 5 and causes errors when strict code checking is on.

Similarly, don't pass objects by reference ( function foo(&$bar) )

Move share edit form into framework package to make it extendable.

Convert all configuration files to XML format (or to a unified conf.yaml, or an annotated conf.php - either way, something the config interface can universally manage and generate)

Checkboxes in Horde_Form that are marked as required should be required to be checked.

Use hash() instead of md5 or sha1 directly for speed (http://us.php.net/manual/en/function.hash.php) (As of 1/14/2009, all md5() and sha1() calls in horde-git and horde-hatchery have been converted)

Add a single function for changing the language (handle the bindTextDomain() call also)

Remove hack to fix app-specific Notification_Listeners that output <p> instead of <li> (in Notification/Listener/status.php).

Filter all input through filter extension or library.

Use phone form fields, i.e. in Turba.

Use exceptions instead of PEAR_Errors. (100% DONE in native IMP code)

Clean up Horde::loadConfiguration() mess.

Set the cache expiration time when the entry is set. This is done in 3.2 but the API should be modified to remove the $lifetime argument from get() and exists(). When checking for cache data the check should only be that the data is not expired. Garbage collection should automatically remove expired data.

However, it's useful to have a way to use expired data in the cache, or to have other kinds of "stampede protection" (have the first process that hits an expired entry touch() it before regenerating it, so that other processes don't *also* try and regenerate it - thus the stampede effect). --ChuckHagenbuch

Fix Horde_Cache_file:: to accept mixed $data, instead of just a string.

But http://lists.horde.org/archives/dev/Week-of-Mon-20070305/021221.html

Use file_put_contents() exclusively.

Refactor Horde_iCalendar

Users shouldn't have to deal with property names, formatting, escaping, versions, etc.
Make getType() return values consistent.
Consistent return types (array vs. timestamp) in _parse*() methods.
Move date/time parsing methods to Horde_Date::.

Clean up horrible Share reference workarounds (http://bugs.horde.org/ticket/?id=5086, http://bugs.horde.org/ticket/?id=5422)

Make editors horde-wide configurable, maybe a preference

Store all date/time information as UTC and convert to user's timezone (DONE only in Kronolith)

Make sure that Horde_Compress_* use streams instead of requiring full files in memory. (DONE for zip files, see Bug #7814)

DONE
Encrypt deprecations in Horde_Crypt_pgp::. (DONE)
Use one place for clear text sendmail error messages. (DONE - Horde_Mime_Mail::sendmailError())
rename files in imp/templates/prefs to more sensible defaults (e.g. draftsfolderselect.inc, not folderselect.inc) (DONE)
Remove IMP_SpellChecker::. (DONE)
Don't let Horde_Crypt_pgp methods check for secure connection. (DONE)
Remove pref_api BC files (DONE)
Remove pre-Horde_Alarm reminder scripts and supporting classes (DONE)
Have some sort of Horde_URL object used to create/work with URLs (will deprecate Util::addParameter(), Util::removeParameter()) (DONE - Horde_Url)
In Browser::, change 'konqueror' to 'webkit' (or add both 'webkit' and 'safari'). (DONE)
Move browser RTE capability sniffing to Horde_Editor drivers. (DONE)
Refactor Maintenance code to trigger it globally on login instead of each application needing to trigger it's own tasks. (DONE via Horde_LoginTasks:: rewrite)
Remove IMP_Serialize_JSON:: and Kronolith_Serialize_JSON::. (DONE)
Remove Gollem_Serialize_JSON::. (DONE)
Remove alternate login/logout settings from IMP/Gollem. (DONE)
Refactor Horde_Image: 100% native Imagick driver (avoids having to keep the image data in instance variable in addition to the imagick object), Allow image objects to represent more than 1 image/page, Move the Exif reading code from Ansel_ImageData into Horde_Image. (DONE)

IMAP stuff

Remove IMAP_Tree::. (DONE)

Merge IMP_Thread:: to IMAP_Thread::. (DONE)

Refactor IMP_IMAPClient::. (NOT NEEDED - IMP_IMAPClient has been removed)

Refactor IMAP_ACL::. (DONE)

Have IMAP_Cache:: use SessionObjects instead of directly accessing the session. (NOT NEEDED - Cache code moved to Horde_Imap_Client)

Remove IMP_IMAP_Search::. (DONE)

Remove Ingo_IMAP_Search::. (DONE)

Remove imap_reopen() call in IMAP_Search::. (NOT NEEDED - IMAP_Search has gone away)

Framework Libraries

prefix all framework classes with Horde_ (see http://www.php.net/manual/en/userlandnaming.php).

capitalization (Horde_Xml_Wbxml instead of XML_WBXML)

lib/ organization, test/, etc. (document new package structure at Doc/Dev/Libraries)

one framework structure, multiple packageName.xml files?

pear package names don't include Horde; horde is the channel - pear install horde/auth

use Horde_Autoloader; never use include(_once) or require(_once)

MIME issues

Remove deprecated code in MIME_Headers:: (DONE)

Remove BC mime_drivers code in MIME_Viewer::, IMP_Contents::, MIMP_Contents::. (DONE)

Make MIME::_rfc822encode() a public function. (DONE)

Make MIME_Viewers responsible for retrieving part contents (so they can determine whether or not contents should be retrieved at all and/or cached). (DONE)

Don't link MIME icons to Viewers - show icons no matter what viewers are installed/enabled/etc (NOT NEEDED - icons will always need to be configured in mime_viewers.php; not sure how else this is supposed to work)

VFS

Clean up VFS_sql to use '/' as the root of the VFS instead of ''. This will make it behave like the other VFS backends without code to do the conversion.

Use/learn from http://www.php.net/~helly/php/ext/spl/

Specifically DirectoryIterator, SPLFileInfo, SplFileObject, ...

Implement and enforce VFS permissions, at least in the backends which do not enforce permissions themselves ('sql' and in some cases 'file').

JavaScript

Put core javascript into a package so it can be versioned/upgraded?

DONE

Remove last traces of enter_key_trap.js (DONE)
Remove code like hideable.js that is encapsulated by Prototype (or whatever js toolkit 4.0 uses standard) (DONE)
Global Prototype/Scriptaculous libraries. (DONE)
Remove app-specific 'stripe.js' files. (DONE)
Remove app-specific 'open_calendar.js' files and extra code in Horde's open_calendar.js. (DONE - Horde_UI_JsCalendar::)
Replace horde's popup.js with IMP's version. (DONE)
Basically consolidate _all_ js present in multiple apps (DONE)
Remove print.js in favor of just window.print() (DONE)
IMP's spellchecker library could probably be globally available (DONE - moved to Horde_Ajax)

Templates

Replace all templates with a Horde_View class, with a default of simple PHP templates

Introduce templates for ALL HTML generated in libraries

Figure out how to handle templates for framework packages

Default HTML Horde_View should escape all output (htmlspecialchars)?

Some sort of simple tag system for user-editable content (maybe based on http://www.cheetahtemplate.org/ ?)

DONE

Remove IMP_Template, Ingo_Template, and Gollem_Template. (DONE)

To discuss

RemoveGlobals

Project/HordeSpaces

Require PHP 5.3+ and use the intl extension (http://us3.php.net/intl)

Horde4/Config

Per-variable session locks? http://thwartedefforts.org/2006/11/11/race-conditions-with-ajax-and-php-sessions/

Deal w/CSS namespace clashing issues in portals (see, e.g., http://bugs.horde.org/ticket/?id=5831). Prefix all css rule names with the application name (.horde-header)? Or have separate CSS files for portal apps (better - prevents from loading entire CSS files when most isn't needed)

Figure out what to do re: gettext strings in framework packages (see, e.g., http://lists.horde.org/archives/dev/Week-of-Mon-20090706/024036.html and http://lists.horde.org/archives/dev/Week-of-Mon-20090713/024066.html)

DONE

Remove confusing mess of hooks and other ways of muddling logins (especially with IMP), and replace them _all_ with the preauthenticate and postauthenticate hooks + appropriate examples for things like vhosting. (DONE)
Clean up tobackend/frombackend hooks - either remove them, or name them better, or document when and where they need to be called. (DONE; moved to single authusername hook and documented better)
Get rid of 'realms' (replace with Project/HordeSpaces where necessary). (DONE; use authusername hook instead)
Remove imp['uniquser'] ? (DONE)
Use 1 login screen for all apps (i.e. LoginController)? (DONE)

Table of Contents

Backward Compatibility Breaking Horde Issues (aka Horde 4.0 TODO)

IMAP stuff

Framework Libraries

MIME issues

VFS

JavaScript

Templates

Bugs

Internationalization

To discuss