scalable changelog redesign

This patch provides a rewritten changelog system that is designed to run
efficiently on both small and large wikis. The patch includes a plugin to
convert changelogs from

scalable changelog redesign

This patch provides a rewritten changelog system that is designed to run
efficiently on both small and large wikis. The patch includes a plugin to
convert changelogs from the current format. The conversion is
non-destructive and happens automatically. For more information on the new
changelog format see "http://wiki.splitbrain.org/wiki:changelog".

Structure
In short the changelog is now stored in per-page changelog files, with a
recent changes cache. The recent changes cache is kept in
"/data/meta/_dokuwiki.changes" and trimmed daily. The per-page changelogs
are kept in "/data/meta/<ns>/<page_id>.changes" files. To preserve
revision information for revisions stored in the attic, the "*.changes"
files are not removed when their page is deleted. This allows the full
life-cycle of page creation, deletion, and reversion to be tracked.

Format
The changelog line format now uses a general "line type" field in place of
the special "minor" change syntax. There is also an extra field that can
be used to store arbitrary data associated with special line types. The
reverted line type (R) is a good example. There the extra field holds the
revision date used as the source for reverting the page. See the wiki for
the complete syntax description.

Code Notes
The changelog functions have been rewritten to load the whole file only if
it is small. For larger files, the function loads only the relevant
chunk(s). Parsed changelog lines are cached in memory to speed future
function calls.

getRevisionInfo
A binary search is used to locate the chunk expected to contain the
requested revision. The whole chunk is parsed, and adjacent lines are
optimistically cached to speed consecutive calls.

getRevisions
Reads the changelog file backwards (newest first) in chunks until the
requested number of lines have been read. Parsed changelog lines are
cached for subsequent calls to getRevisionInfo. Because revisions are read
from the changelog they are no longer guaranteed to exist in the attic.

(Note: Even with lines of arbitrary length getRevisionInfo and
getRevisions never split changelog lines while reading. This is done by
sliding the "file pointer" forward to the end of a line after each blind
seek.)

isMinor
Removed. To detect a minor edit check the type as follows:
$parsed_logline['type']

darcs-hash:20060830182753-05dcb-1c5ea17f581197a33732a8d11da223d809c03506.gz

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Add AJAX_CALL_UNKNOWN event

Allows action plugins to support custom ajax calls.
The event data is the call name from $_POST['call'].
When handling a custom ajax call, remember to use
$event->prevent

Add AJAX_CALL_UNKNOWN event

Allows action plugins to support custom ajax calls.
The event data is the call name from $_POST['call'].
When handling a custom ajax call, remember to use
$event->preventDefault();
to avoid having the
'AJAX call <call> unknown!'
message appended to the output.

darcs-hash:20060809194501-05dcb-0082e4f2a83fc8657fc7cdcf32d44aac8d1a6b99.gz

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make image details indexable

darcs-hash:20060807205738-7ad00-5492ba5fe3e854f9dc233254535e4e897847353c.gz

fix in JS compressor

This fixes a problem with escaped backslashes in single and double quote
strings.

darcs-hash:20060731223008-7ad00-ebae61a00115b7f32c12eb9355059a1ecf467cd3.gz

spellchecker CSS changes #539 #824

This patch now assigns the needed proprietary CSS attributes for the spellchecker
through JavaScript. This makes the CSS valid again (at least it appears to be ;-)

spellchecker CSS changes #539 #824

This patch now assigns the needed proprietary CSS attributes for the spellchecker
through JavaScript. This makes the CSS valid again (at least it appears to be ;-))
I also fixed a problem with leading single spaces in IE

darcs-hash:20060731192807-7ad00-b82bdcae9a0c8cf063c3a1e985dbfd1dfdee7b06.gz

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fixing undefined variables

Fixing undefined variable notices and sometimes
the underlying error that produced them.

darcs-hash:20060710114655-05dcb-073948171847f1f43f153e96c8382abd421da36a.gz

IO action events

Adds page and namespace events:
IO_WIKIPAGE_READ
IO_WIKIPAGE_WRITE
IO_NAMESPACE_CREATED
IO_NAMESPACE_DELETED

The namespace events are purely advisory,
while the wikipage ev

IO action events

Adds page and namespace events:
IO_WIKIPAGE_READ
IO_WIKIPAGE_WRITE
IO_NAMESPACE_CREATED
IO_NAMESPACE_DELETED

The namespace events are purely advisory,
while the wikipage events allow page content
to be modified between DokuWiki and the disk.

These events are primarily intended to simplify
keeping other tools in sync with the semantic
structure of a DokuWiki site. As an added benefit,
the events allow plugins to conduct automated
processing of raw wiki page content.

The namespace events cover the separate namespace
trees for both pages and media. The "name" of the
tree that the event belongs to is included in the
event data.

darcs-hash:20060705105652-05dcb-f44024e852a2adf1a14b8a7d69c46db067e72307.gz

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check if ignore_user_abort was successful (maybe fix for #852)

darcs-hash:20060701120325-7ad00-07efe9cacd51043ad95d8d2d71d8680036721286.gz

use template name along with CSS cache file name

darcs-hash:20060628094419-484ab-148d62ec3e29deb7ca9fa9b787c238a1d73bc4e3.gz

js.php fix

- correct begin/end comment, plugin filename wasn't being used
- add file exists check, to avoid bloating js with comments for non-existent plugin js.
Many (most?) plugins don't have ja

js.php fix

- correct begin/end comment, plugin filename wasn't being used
- add file exists check, to avoid bloating js with comments for non-existent plugin js.
Many (most?) plugins don't have javascript.

darcs-hash:20060619104613-9b6ab-08a570cdbb0d6441f1caa71766d4c59c73828835.gz

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better onload handling

This patch improves the way the window.oninit JavaScript function is
called. This function is used to initialiaze all JavaScript funcions
attached to the DOM so it needs to be

better onload handling

This patch improves the way the window.oninit JavaScript function is
called. This function is used to initialiaze all JavaScript funcions
attached to the DOM so it needs to be executed **after** the full DOM
was parsed by the browser. Unfortunately currently only Mozilla supports
a DOMContentLoaded event. In all other browsers we had to wait for
the window.onload event which will only be called after **all** content
(including images) was loaded - this caused a visible delay on all
JavaScript generated content (like the toolbar) in non-Mozilla browsers.

Dean Edwards now presented a solution [1] which will work for all the bigger
Browsers and is used in this patch.

The following browsers now should fire the init event right after parsing
the DOM:

All Mozilla based browsers
Internet Explorer
Safari
Opera >

darcs-hash:20060616104539-7ad00-db70d31fcb21cb812cf4982fe80a7d649e2daa1c.gz

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$conf['fetchsize'] added

This patch adds an option to configure the maximum size for files the fetch.php
will ever download. Setting this to 0 completely turns of the caching of external
media files

$conf['fetchsize'] added

This patch adds an option to configure the maximum size for files the fetch.php
will ever download. Setting this to 0 completely turns of the caching of external
media files.

Disadvantages of setting a low or zero fetchsize:

* fetch.php needs to download images to be able to resize them. When the used
fetchsize prevents the downloading the images can only be resized by the
browser which means the browser will need to download the fullsized image first.

* If the linked external media files vanishes it will no longer display in the
wiki because it is not cached.

Advantages of setting a low or zero fetchsize:

* fetch.php may be used for a possible denial of service attack by requesting
many big external files.

* The created cache files may take a lot of space on the server

I recommend to leave the setting at 2MB for internal and private wikis and lower
the setting to about 200 to 500 Kb for bigger public Wikis.

Note: the caching of files uploaded through the media manager is not affected by
this setting.

darcs-hash:20060615184847-7ad00-04fc39928f7d72e56f5c5e271013ef265436e6c9.gz

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fix for serious security bug #823

darcs-hash:20060604175833-7ad00-cd96ba6a7db7211082ff82e189828e2e11a6f566.gz

fixed google sitemap pinging #815

darcs-hash:20060529183003-7ad00-de0e3acac75a9f94f6c27f67651eeabe40411d7a.gz

usability enhancements for the loginform #803

darcs-hash:20060527185238-7ad00-1593c8b25d7f870c8a0b3017fbcf29c4e047f52c.gz

small improvements on JS compressor (maybe fixes #807)

darcs-hash:20060527140157-7ad00-225a9ba66f658cc279cb44ebb04d483291d567d2.gz

fix for sitemap creation #813

darcs-hash:20060526223358-7ad00-2bdfd39a5dd8ca09101288834cc75e5e963afda5.gz

fixed an AJAX problem for the media manager

darcs-hash:20060525175501-7ad00-eebd033af344904eab32fe70ba5acfb77b94eada.gz

more mediamanager fixes

This fixes some styling issues, the cookie handling and a bug in the
JavaScript caching mechanism.

darcs-hash:20060525144000-7ad00-2f0b673d4f747c979f460e4e927a50eeeae81ec1.gz

minor media manager tweaks

darcs-hash:20060520172118-7ad00-ad605bf51c8774d734012ece0071f70e6624788a.gz

moved gzip compression to init.php

darcs-hash:20060519212751-7ad00-ace54b61706fdf4f1b7c2abdbabee215a1e256ab.gz

new mediamanager

This patch adds a completely rewritten media popup. The following noteworthy
changes were made:

- media manager uses a collapsible namespace tree
- media manager uses AJAX if avail

new mediamanager

This patch adds a completely rewritten media popup. The following noteworthy
changes were made:

- media manager uses a collapsible namespace tree
- media manager uses AJAX if available
- media manager popup can be kept open when selecting a media file
- only one template is used for the media manager :!: Template
- Editable image metadata is configured in conf/mediameta.php now
- The JS cookie mechanism was enhanced to store key/value pairs
- Language strings can be exported to JS in js.php

darcs-hash:20060519165023-7ad00-4932b4553fc919aa4a8b8187958b823acf4f8cee.gz

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jpg quality option

- Adds a jpg quality setting for scaled images
(Some images were getting too many jpg artifacts
at the hard-coded compression setting.)
- Creates a group for the medi

jpg quality option

- Adds a jpg quality setting for scaled images
(Some images were getting too many jpg artifacts
at the hard-coded compression setting.)
- Creates a group for the media settings in the
config plugin.

darcs-hash:20060516062321-05dcb-a175b0de3264322a335cf60d8ee96317f7b03144.gz

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more info is gathered on metaupdate in background indexer

The background indexer now gathers info on contributors and modification
dates from the changelog when adding the missing meta info.

A new

more info is gathered on metaupdate in background indexer

The background indexer now gathers info on contributors and modification
dates from the changelog when adding the missing meta info.

A new io_grep function was added which might be useful for other parts in
the Wiki as well.

darcs-hash:20060511191450-7ad00-baba1b48ea03b823c88a480862c612316f159b5a.gz

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empty default title for inserted images #770

darcs-hash:20060507165308-7ad00-3526c8c4e5d8c10a8e003068008e2344e94e1739.gz