Wikka Documentation : HandlerInfo

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Wikka Handlers


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What is a Handler


Wikka handlers provide functionality that generally acts on an entire page or affects the wiki as a whole in some way. You could say that handlers "handle" something for the user, such as deleting a page, modifying Access Control Lists (ACLs), or showing page history.

Using handlers vs. using actions


Wikka actions affect a part of a wikka page, they are meant to generate content within the page. Actions are usually inserted into a page along with all of the other markup. When the page is viewed/rendered, the action is "executed" and its output is displayed.

Wikka handlers, on the other hand, are not inserted in the page body, but are invoked when you submit a form or click on a menu link like "Page History". They can be manually invoked by appending to the URL of a page the name of the handler preceded by a slash. For example, to switch from the formatted view to the edit view of this page, just append to the URL displayed in your browser address field /edit.

List of available handlers


page handlers

Handlers distributed with WikkaWiki generating XHTML output (in alphabetical order)
/acls Handles the Access Control List (ACL) functionality. You can access ACL settings by clicking the "Edit ACLs" link at the bottom of a page. The link is only visible if:
1) You are the page owner and you are logged in.
2) You are logged in as the admin user for the Wikka Wiki. The link doesn't appear if the page is owned by "nobody". Click the "Take ownership" link at the bottom of the screen to take ownership of the page before trying to modify the Access Control List.
/addcomment Handles some of the tasks associated with adding a new comment: e.g. managing comment related access control, posting new comments, displaying comment related error messages.
/backlinks Displays a list of internal pages linking to the current page.
/claim Handles tasks associated with page ownership: e.g. determining access to the "take ownership" command, assigning page ownership, displaying confirmation/error messages.
/clone Clone the current page and save a copy of it as a new page.
/delcomment Handles tasks associated to the deletion of comments from the MySQL database: e.g. determining if a user is allowed to delete a specific comment.
/delete Handles tasks related to the deletion of pages: e.g. displaying the form that prompts the user for information about the deletion, displaying confirmation and error messages, determining if a user is allowed to delete a specific page.
/delete_referrer Handle tasks related to the removal of referrers.
/diff Determines and displays the differences between two revisions of a page, shows additions and deletions.
/edit Handles tasks associated with editing a page: displaying the edit form, validating input, showing page preview, checking to see if a user is allowed to edit a page, displaying confirmation and error messages, handling the storage of pages in the MySQL database.
/grabcode Download a code block as a file.
/history Shows the history of additions and deletions associated with each version of a page
/raw Displays the source code of a Wikka page as plain text.
/referrers Displays a list of sites linking to a page (also known as referrers).
/referrers_sites Displays a list of domains containing links to a page.
/revert Reverts to revision immediately preceding the current version of page.
since 1.1.6.4
/review_blacklist Displays a list of domains that have been removed from the referrer list.
/revisions Handles task associated with page revisions. Shows all of the versions for a page and allows you to see the differences between any two versions of a page.
/show Handles tasks related to displaying pages and comments. Checks user access to pages. Allows users to create new pages.
/showcode Displays the source code of a Wikka page as a HTML document.



XML handlers

Handlers distributed with WikkaWiki generating output other than XHTML (in alphabetical order)
/files.xml Handles file downloads and file deletion.
/mindmap.mm shows an embedded mindmap as an xml - document
/recentchanges.xml Displays the XML feed of global recent changes on a WikkaWiki
/recentchanges.xml.mm Displays a feed of global recent changes on a WikkaWiki as a mindmap
/recentchanges_simple.xml.mm Displays a feed of global recent changes on a WikkaWiki as a simple mindmap
/revisions.xml Displays the XML feed of revisions of a page


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