2011-03-05 19:48:10 +00:00
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<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Superclass for microapp plugin
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2011-04-03 00:09:02 +01:00
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*
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2011-03-05 19:48:10 +00:00
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Microapp
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Superclass for microapp plugins
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*
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* This class lets you define micro-applications with different kinds of activities.
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*
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2011-04-03 00:09:02 +01:00
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* The applications work more-or-less like other
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*
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2011-03-05 19:48:10 +00:00
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* @category Microapp
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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abstract class MicroAppPlugin extends Plugin
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{
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2011-03-07 21:36:15 +00:00
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/**
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* Returns a localized string which represents this micro-app,
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* to be shown to users selecting what type of post to make.
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* This is paired with the key string in $this->tag().
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*
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* All micro-app classes must override this method.
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*
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* @return string
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*/
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2011-03-06 21:33:36 +00:00
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abstract function appTitle();
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2011-03-07 21:36:15 +00:00
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/**
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* Returns a key string which represents this micro-app in HTML
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* ids etc, as when offering selection of what type of post to make.
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* This is paired with the user-visible localizable $this->appTitle().
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*
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* All micro-app classes must override this method.
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*/
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2011-03-06 21:33:36 +00:00
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abstract function tag();
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2011-03-07 21:36:15 +00:00
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/**
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* Return a list of ActivityStreams object type URIs
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* which this micro-app handles. Default implementations
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* of the base class will use this list to check if a
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* given ActivityStreams object belongs to us, via
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* $this->isMyNotice() or $this->isMyActivity.
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*
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* All micro-app classes must override this method.
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*
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* @fixme can we confirm that these types are the same
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* for Atom and JSON streams? Any limitations or issues?
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*
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* @return array of strings
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*/
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2011-03-05 19:48:10 +00:00
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abstract function types();
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2011-03-07 21:36:15 +00:00
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/**
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* Given a parsed ActivityStreams activity, your plugin
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* gets to figure out how to actually save it into a notice
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* and any additional data structures you require.
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*
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* This will handle things received via AtomPub, OStatus
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* (PuSH and Salmon transports), or ActivityStreams-based
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* backup/restore of account data.
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*
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* You should be able to accept as input the output from your
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* $this->activityObjectFromNotice(). Where applicable, try to
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* use existing ActivityStreams structures and object types,
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* and be liberal in accepting input from what might be other
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* compatible apps.
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*
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* All micro-app classes must override this method.
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*
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* @fixme are there any standard options?
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*
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* @param Activity $activity
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* @param Profile $actor
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* @param array $options=array()
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*
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* @return Notice the resulting notice
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*/
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abstract function saveNoticeFromActivity($activity, $actor, $options=array());
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/**
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* Given an existing Notice object, your plugin gets to
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* figure out how to arrange it into an ActivityStreams
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* object.
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*
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* This will be how your specialized notice gets output in
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* Atom feeds and JSON-based ActivityStreams output, including
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* account backup/restore and OStatus (PuSH and Salmon transports).
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*
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* You should be able to round-trip data from this format back
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* through $this->saveNoticeFromActivity(). Where applicable, try
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* to use existing ActivityStreams structures and object types,
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* and consider interop with other compatible apps.
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*
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* All micro-app classes must override this method.
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*
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* @fixme this outputs an ActivityObject, not an Activity. Any compat issues?
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*
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* @param Notice $notice
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*
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* @return ActivityObject
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*/
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2011-03-06 21:33:36 +00:00
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abstract function activityObjectFromNotice($notice);
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2011-03-07 21:36:15 +00:00
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/**
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* When building the primary notice form, we'll fetch also some
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* alternate forms for specialized types -- that's you!
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*
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* Return a custom Widget or Form object for the given output
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* object, and it'll be included in the HTML output. Beware that
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* your form may be initially hidden.
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*
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* All micro-app classes must override this method.
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*
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* @param HTMLOutputter $out
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* @return Widget
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*/
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2011-03-06 21:33:36 +00:00
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abstract function entryForm($out);
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2011-03-07 21:36:15 +00:00
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/**
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* When a notice is deleted, you'll be called here for a chance
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* to clean up any related resources.
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*
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* All micro-app classes must override this method.
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*
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* @param Notice $notice
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*/
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2011-03-06 21:33:36 +00:00
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abstract function deleteRelated($notice);
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2011-03-05 19:48:10 +00:00
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2011-03-07 21:36:15 +00:00
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/**
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* Check if a given notice object should be handled by this micro-app
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* plugin.
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*
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* The default implementation checks against the activity type list
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* returned by $this->types(). You can override this method to expand
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* your checks.
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*
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* @param Notice $notice
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* @return boolean
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*/
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2011-03-05 19:48:10 +00:00
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function isMyNotice($notice) {
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$types = $this->types();
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2011-08-31 20:25:06 +01:00
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return ($notice->verb == ActivityVerb::POST) && in_array($notice->object_type, $types);
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2011-03-05 19:48:10 +00:00
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}
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2011-03-07 21:36:15 +00:00
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/**
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* Check if a given ActivityStreams activity should be handled by this
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* micro-app plugin.
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*
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* The default implementation checks against the activity type list
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* returned by $this->types(), and requires that exactly one matching
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* object be present. You can override this method to expand
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* your checks or to compare the activity's verb, etc.
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*
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* @param Activity $activity
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* @return boolean
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*/
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2011-03-05 19:48:10 +00:00
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function isMyActivity($activity) {
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$types = $this->types();
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return (count($activity->objects) == 1 &&
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2011-07-20 16:39:51 +01:00
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($activity->objects[0] instanceof ActivityObject) &&
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2011-08-31 20:25:06 +01:00
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($activity->verb == ActivityVerb::POST) &&
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2011-03-05 19:48:10 +00:00
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in_array($activity->objects[0]->type, $types));
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}
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2011-03-06 21:33:36 +00:00
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2011-03-11 19:54:23 +00:00
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/**
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* Called when generating Atom XML ActivityStreams output from an
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* ActivityObject belonging to this plugin. Gives the plugin
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* a chance to add custom output.
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*
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* Note that you can only add output of additional XML elements,
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* not change existing stuff here.
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*
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* If output is already handled by the base Activity classes,
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* you can leave this base implementation as a no-op.
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*
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* @param ActivityObject $obj
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* @param XMLOutputter $out to add elements at end of object
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*/
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function activityObjectOutputAtom(ActivityObject $obj, XMLOutputter $out)
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{
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// default is a no-op
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}
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/**
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* Called when generating JSON ActivityStreams output from an
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* ActivityObject belonging to this plugin. Gives the plugin
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* a chance to add custom output.
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*
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* Modify the array contents to your heart's content, and it'll
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* all get serialized out as JSON.
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*
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* If output is already handled by the base Activity classes,
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* you can leave this base implementation as a no-op.
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*
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* @param ActivityObject $obj
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* @param array &$out JSON-targeted array which can be modified
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*/
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public function activityObjectOutputJson(ActivityObject $obj, array &$out)
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{
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// default is a no-op
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}
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2011-03-06 21:33:36 +00:00
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/**
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* When a notice is deleted, delete the related objects
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2011-03-07 21:36:15 +00:00
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* by calling the overridable $this->deleteRelated().
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2011-03-06 21:33:36 +00:00
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*
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* @param Notice $notice Notice being deleted
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2011-04-03 00:09:02 +01:00
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*
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2011-03-06 21:33:36 +00:00
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* @return boolean hook value
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*/
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function onNoticeDeleteRelated($notice)
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{
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if ($this->isMyNotice($notice)) {
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$this->deleteRelated($notice);
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}
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return true;
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}
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/**
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* Output the HTML for this kind of object in a list
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*
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* @param NoticeListItem $nli The list item being shown.
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*
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* @return boolean hook value
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2011-03-07 23:15:21 +00:00
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*
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* @fixme WARNING WARNING WARNING this closes a 'div' that is implicitly opened in BookmarkPlugin's showNotice implementation
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2011-03-06 21:33:36 +00:00
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*/
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function onStartShowNoticeItem($nli)
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{
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if (!$this->isMyNotice($nli->notice)) {
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return true;
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}
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2011-04-19 20:43:06 +01:00
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$adapter = $this->adaptNoticeListItem($nli);
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if (!empty($adapter)) {
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2011-04-19 22:55:57 +01:00
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$adapter->showNotice();
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$adapter->showNoticeAttachments();
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$adapter->showNoticeInfo();
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$adapter->showNoticeOptions();
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2011-04-19 20:43:06 +01:00
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} else {
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$this->oldShowNotice($nli);
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}
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return false;
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}
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/**
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* Given a notice list item, returns an adapter specific
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* to this plugin.
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*
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* @param NoticeListItem $nli item to adapt
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*
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* @return NoticeListItemAdapter adapter or null
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*/
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function adaptNoticeListItem($nli)
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{
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return null;
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}
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function oldShowNotice($nli)
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{
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2011-03-06 21:33:36 +00:00
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$out = $nli->out;
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2011-03-07 19:06:46 +00:00
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$notice = $nli->notice;
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2011-03-06 21:33:36 +00:00
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2011-04-11 00:33:11 +01:00
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try {
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$this->showNotice($notice, $out);
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} catch (Exception $e) {
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common_log(LOG_ERR, $e->getMessage());
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// try to fall back
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2011-04-11 00:34:48 +01:00
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$out->elementStart('div');
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2011-04-11 00:33:11 +01:00
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$nli->showAuthor();
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$nli->showContent();
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}
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2011-03-06 21:33:36 +00:00
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$nli->showNoticeLink();
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$nli->showNoticeSource();
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$nli->showNoticeLocation();
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$nli->showContext();
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$nli->showRepeat();
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2011-04-03 00:09:02 +01:00
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2011-03-06 21:33:36 +00:00
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$out->elementEnd('div');
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2011-04-03 00:09:02 +01:00
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2011-03-06 21:33:36 +00:00
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$nli->showNoticeOptions();
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}
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/**
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* Render a notice as one of our objects
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*
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* @param Notice $notice Notice to render
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* @param ActivityObject &$object Empty object to fill
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*
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* @return boolean hook value
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*/
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function onStartActivityObjectFromNotice($notice, &$object)
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{
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if ($this->isMyNotice($notice)) {
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$object = $this->activityObjectFromNotice($notice);
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return false;
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}
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return true;
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}
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/**
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* Handle a posted object from PuSH
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*
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* @param Activity $activity activity to handle
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* @param Ostatus_profile $oprofile Profile for the feed
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*
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* @return boolean hook value
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*/
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2011-07-20 16:33:28 +01:00
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function onStartHandleFeedEntryWithProfile($activity, $oprofile, &$notice)
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2011-03-06 21:33:36 +00:00
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{
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if ($this->isMyActivity($activity)) {
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$actor = $oprofile->checkAuthorship($activity);
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if (empty($actor)) {
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2011-04-03 00:09:02 +01:00
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// TRANS: Client exception thrown when no author for an activity was found.
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throw new ClientException(_('Cannot get author for activity.'));
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2011-03-06 21:33:36 +00:00
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}
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2011-03-06 22:27:03 +00:00
|
|
|
$object = $activity->objects[0];
|
|
|
|
|
|
|
|
$options = array('uri' => $object->id,
|
|
|
|
'url' => $object->link,
|
2011-07-15 20:13:57 +01:00
|
|
|
'is_local' => Notice::REMOTE,
|
2011-03-06 22:27:03 +00:00
|
|
|
'source' => 'ostatus');
|
2011-03-10 19:35:04 +00:00
|
|
|
|
|
|
|
// $actor is an ostatus_profile
|
2011-07-20 16:33:28 +01:00
|
|
|
$notice = $this->saveNoticeFromActivity($activity, $actor->localProfile(), $options);
|
2011-03-06 21:33:36 +00:00
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle a posted object from Salmon
|
|
|
|
*
|
|
|
|
* @param Activity $activity activity to handle
|
|
|
|
* @param mixed $target user or group targeted
|
|
|
|
*
|
|
|
|
* @return boolean hook value
|
|
|
|
*/
|
|
|
|
|
|
|
|
function onStartHandleSalmonTarget($activity, $target)
|
|
|
|
{
|
|
|
|
if ($this->isMyActivity($activity)) {
|
|
|
|
$this->log(LOG_INFO, "Checking {$activity->id} as a valid Salmon slap.");
|
|
|
|
|
|
|
|
if ($target instanceof User_group) {
|
|
|
|
$uri = $target->getUri();
|
2013-10-28 21:21:14 +00:00
|
|
|
if (!array_key_exists($uri, $activity->context->attention)) {
|
2011-04-03 00:09:02 +01:00
|
|
|
// @todo FIXME: please document (i18n).
|
2011-04-21 19:26:58 +01:00
|
|
|
// TRANS: Client exception thrown when ...
|
2013-10-28 21:21:14 +00:00
|
|
|
throw new ClientException(_('Object not posted to this group.'));
|
2011-03-06 21:33:36 +00:00
|
|
|
}
|
|
|
|
} else if ($target instanceof User) {
|
|
|
|
$uri = $target->uri;
|
|
|
|
$original = null;
|
|
|
|
if (!empty($activity->context->replyToID)) {
|
2013-08-18 12:04:58 +01:00
|
|
|
$original = Notice::getKV('uri',
|
2011-04-03 00:09:02 +01:00
|
|
|
$activity->context->replyToID);
|
2011-03-06 21:33:36 +00:00
|
|
|
}
|
2013-10-28 21:21:14 +00:00
|
|
|
if (!array_key_exists($uri, $activity->context->attention) &&
|
2011-03-06 21:33:36 +00:00
|
|
|
(empty($original) ||
|
|
|
|
$original->profile_id != $target->id)) {
|
2011-04-03 00:09:02 +01:00
|
|
|
// @todo FIXME: Please document (i18n).
|
2011-04-21 19:26:58 +01:00
|
|
|
// TRANS: Client exception when ...
|
2011-04-03 00:09:02 +01:00
|
|
|
throw new ClientException(_('Object not posted to this user.'));
|
2011-03-06 21:33:36 +00:00
|
|
|
}
|
|
|
|
} else {
|
2011-04-03 00:09:02 +01:00
|
|
|
// TRANS: Server exception thrown when a micro app plugin uses a target that cannot be handled.
|
|
|
|
throw new ServerException(_('Do not know how to handle this kind of target.'));
|
2011-03-06 21:33:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
$actor = Ostatus_profile::ensureActivityObjectProfile($activity->actor);
|
|
|
|
|
2011-03-06 22:27:03 +00:00
|
|
|
$object = $activity->objects[0];
|
|
|
|
|
|
|
|
$options = array('uri' => $object->id,
|
|
|
|
'url' => $object->link,
|
2011-07-15 20:13:57 +01:00
|
|
|
'is_local' => Notice::REMOTE,
|
2011-03-06 22:27:03 +00:00
|
|
|
'source' => 'ostatus');
|
|
|
|
|
2011-03-10 19:35:04 +00:00
|
|
|
// $actor is an ostatus_profile
|
|
|
|
$this->saveNoticeFromActivity($activity, $actor->localProfile(), $options);
|
2011-03-06 21:33:36 +00:00
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle object posted via AtomPub
|
|
|
|
*
|
|
|
|
* @param Activity &$activity Activity that was posted
|
|
|
|
* @param User $user User that posted it
|
|
|
|
* @param Notice &$notice Resulting notice
|
|
|
|
*
|
|
|
|
* @return boolean hook value
|
|
|
|
*/
|
|
|
|
function onStartAtomPubNewActivity(&$activity, $user, &$notice)
|
|
|
|
{
|
|
|
|
if ($this->isMyActivity($activity)) {
|
|
|
|
|
|
|
|
$options = array('source' => 'atompub');
|
|
|
|
|
2011-03-10 19:35:04 +00:00
|
|
|
// $user->getProfile() is a Profile
|
2011-07-26 20:19:33 +01:00
|
|
|
$notice = $this->saveNoticeFromActivity($activity,
|
|
|
|
$user->getProfile(),
|
|
|
|
$options);
|
2011-03-06 21:33:36 +00:00
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle object imported from a backup file
|
|
|
|
*
|
|
|
|
* @param User $user User to import for
|
|
|
|
* @param ActivityObject $author Original author per import file
|
|
|
|
* @param Activity $activity Activity to import
|
|
|
|
* @param boolean $trusted Is this a trusted user?
|
|
|
|
* @param boolean &$done Is this done (success or unrecoverable error)
|
|
|
|
*
|
|
|
|
* @return boolean hook value
|
|
|
|
*/
|
|
|
|
function onStartImportActivity($user, $author, $activity, $trusted, &$done)
|
|
|
|
{
|
|
|
|
if ($this->isMyActivity($activity)) {
|
|
|
|
|
|
|
|
$obj = $activity->objects[0];
|
|
|
|
|
2011-03-06 22:27:03 +00:00
|
|
|
$options = array('uri' => $object->id,
|
|
|
|
'url' => $object->link,
|
2011-03-06 21:33:36 +00:00
|
|
|
'source' => 'restore');
|
|
|
|
|
2011-03-10 19:35:04 +00:00
|
|
|
// $user->getProfile() is a Profile
|
2011-03-06 21:33:36 +00:00
|
|
|
$saved = $this->saveNoticeFromActivity($activity,
|
|
|
|
$user->getProfile(),
|
|
|
|
$options);
|
|
|
|
|
|
|
|
if (!empty($saved)) {
|
|
|
|
$done = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
2011-03-06 22:27:03 +00:00
|
|
|
|
2011-03-11 19:54:23 +00:00
|
|
|
/**
|
|
|
|
* Event handler gives the plugin a chance to add custom
|
|
|
|
* Atom XML ActivityStreams output from a previously filled-out
|
|
|
|
* ActivityObject.
|
|
|
|
*
|
|
|
|
* The atomOutput method is called if it's one of
|
|
|
|
* our matching types.
|
|
|
|
*
|
|
|
|
* @param ActivityObject $obj
|
|
|
|
* @param XMLOutputter $out to add elements at end of object
|
|
|
|
* @return boolean hook return value
|
|
|
|
*/
|
|
|
|
function onEndActivityObjectOutputAtom(ActivityObject $obj, XMLOutputter $out)
|
|
|
|
{
|
|
|
|
if (in_array($obj->type, $this->types())) {
|
|
|
|
$this->activityObjectOutputAtom($obj, $out);
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Event handler gives the plugin a chance to add custom
|
|
|
|
* JSON ActivityStreams output from a previously filled-out
|
|
|
|
* ActivityObject.
|
|
|
|
*
|
|
|
|
* The activityObjectOutputJson method is called if it's one of
|
|
|
|
* our matching types.
|
|
|
|
*
|
|
|
|
* @param ActivityObject $obj
|
|
|
|
* @param array &$out JSON-targeted array which can be modified
|
|
|
|
* @return boolean hook return value
|
|
|
|
*/
|
|
|
|
function onEndActivityObjectOutputJson(ActivityObject $obj, array &$out)
|
|
|
|
{
|
|
|
|
if (in_array($obj->type, $this->types())) {
|
2011-03-30 10:10:07 +01:00
|
|
|
$this->activityObjectOutputJson($obj, $out);
|
2011-03-11 19:54:23 +00:00
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2011-03-06 22:27:03 +00:00
|
|
|
function onStartShowEntryForms(&$tabs)
|
|
|
|
{
|
|
|
|
$tabs[$this->tag()] = $this->appTitle();
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
function onStartMakeEntryForm($tag, $out, &$form)
|
|
|
|
{
|
|
|
|
if ($tag == $this->tag()) {
|
|
|
|
$form = $this->entryForm($out);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
2011-04-19 20:43:06 +01:00
|
|
|
|
2011-04-19 21:00:31 +01:00
|
|
|
function showNotice($notice, $out)
|
|
|
|
{
|
2011-04-21 19:26:58 +01:00
|
|
|
// TRANS: Server exception thrown when a micro app plugin developer has not done his job too well.
|
|
|
|
throw new ServerException(_('You must implement either adaptNoticeListItem() or showNotice().'));
|
2011-04-19 21:00:31 +01:00
|
|
|
}
|
2011-03-05 19:48:10 +00:00
|
|
|
}
|