gnu-social/modules/Share/SharePlugin.php

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<?php
/*
* GNU Social - a federating social network
* Copyright (C) 2014, Free Software Foundation, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* @package Activity
* @maintainer Mikael Nordfeldth <mmn@hethane.se>
*/
class SharePlugin extends ActivityVerbHandlerPlugin
{
const PLUGIN_VERSION = '2.0.0';
public function tag()
{
return 'share';
}
public function types()
{
return array();
}
public function verbs()
{
return array(ActivityVerb::SHARE);
}
// Share is a bit special and $act->objects[0] should be an Activity
// instead of ActivityObject! Therefore also $act->objects[0]->type is not set.
public function isMyActivity(Activity $act) {
return (count($act->objects) == 1
&& ($act->objects[0] instanceof Activity)
&& $this->isMyVerb($act->verb));
}
public function onRouterInitialized(URLMapper $m)
{
// Web UI actions
$m->connect('main/repeat', ['action' => 'repeat']);
// Share for Twitter API ("Retweet")
$m->connect('api/statuses/retweeted_by_me.:format',
['action' => 'ApiTimelineRetweetedByMe'],
['format' => '(xml|json|atom|as)']);
$m->connect('api/statuses/retweeted_to_me.:format',
['action' => 'ApiTimelineRetweetedToMe'],
['format' => '(xml|json|atom|as)']);
$m->connect('api/statuses/retweets_of_me.:format',
['action' => 'ApiTimelineRetweetsOfMe'],
['format' => '(xml|json|atom|as)']);
$m->connect('api/statuses/retweet/:id.:format',
['action' => 'ApiStatusesRetweet'],
['id' => '[0-9]+',
'format' => '(xml|json)']);
$m->connect('api/statuses/retweets/:id.:format',
['action' => 'ApiStatusesRetweets'],
['id' => '[0-9]+',
'format' => '(xml|json)']);
}
// FIXME: Set this to abstract public in lib/activityhandlerplugin.php when all plugins have migrated!
protected function saveObjectFromActivity(Activity $act, Notice $stored, array $options=array())
{
assert($this->isMyActivity($act));
// The below algorithm is mainly copied from the previous Ostatus_profile->processShare()
if (count($act->objects) !== 1) {
// TRANS: Client exception thrown when trying to share multiple activities at once.
throw new ClientException(_m('Can only handle share activities with exactly one object.'));
}
$shared = $act->objects[0];
if (!$shared instanceof Activity) {
// TRANS: Client exception thrown when trying to share a non-activity object.
throw new ClientException(_m('Can only handle shared activities.'));
}
$sharedUri = $shared->id;
if (!empty($shared->objects[0]->id)) {
// Because StatusNet since commit 8cc4660 sets $shared->id to a TagURI which
// fucks up federation, because the URI is no longer recognised by the origin.
// So we set it to the object ID if it exists, otherwise we trust $shared->id
$sharedUri = $shared->objects[0]->id;
}
if (empty($sharedUri)) {
throw new ClientException(_m('Shared activity does not have an id'));
}
try {
// First check if we have the shared activity. This has to be done first, because
// we can't use these functions to "ensureActivityObjectProfile" of a local user,
// who might be the creator of the shared activity in question.
$sharedNotice = Notice::getByUri($sharedUri);
} catch (NoResultException $e) {
// If no locally stored notice is found, process it!
// TODO: Remember to check Deleted_notice!
// TODO: If a post is shared that we can't retrieve - what to do?
$other = Ostatus_profile::ensureActivityObjectProfile($shared->actor);
$sharedNotice = Notice::saveActivity($shared, $other->localProfile(), array('source'=>'share'));
} catch (FeedSubException $e) {
// Remote feed could not be found or verified, should we
// transform this into an "RT @user Blah, blah, blah..."?
common_log(LOG_INFO, __METHOD__ . ' got a ' . get_class($e) . ': ' . $e->getMessage());
return false;
}
// Setting this here because when the algorithm gets back to
// Notice::saveActivity it will update the Notice object.
$stored->repeat_of = $sharedNotice->getID();
$stored->conversation = $sharedNotice->conversation;
// We don't have to save a repeat in a separate table, we can
// find repeats by just looking at the notice.repeat_of field.
// By returning true here instead of something that evaluates
// to false, we show that we have processed everything properly.
return true;
}
// FIXME: Put this in lib/activityhandlerplugin.php when we're ready
// with the other microapps/activityhandlers as well.
// Also it should be StartNoticeAsActivity (with a prepped Activity, including ->context etc.)
public function onEndNoticeAsActivity(Notice $stored, Activity $act, Profile $scoped=null)
{
if (!$this->isMyNotice($stored)) {
return true;
}
$this->extendActivity($stored, $act, $scoped);
return false;
}
public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
{
// TODO: How to handle repeats of deleted notices?
$target = Notice::getByID($stored->repeat_of);
// TRANS: A repeat activity's title. %1$s is repeater's nickname
// and %2$s is the repeated user's nickname.
$act->title = sprintf(_('%1$s repeated a notice by %2$s'),
$stored->getProfile()->getNickname(),
$target->getProfile()->getNickname());
$act->objects[] = $target->asActivity($scoped);
}
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public function activityObjectFromNotice(Notice $stored)
{
// Repeat is a little bit special. As it's an activity, our
// ActivityObject is instead turned into an Activity
$object = new Activity();
$object->actor = $stored->getProfile()->asActivityObject();
$object->verb = ActivityVerb::SHARE;
$object->content = $stored->getRendered();
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$this->extendActivity($stored, $object);
return $object;
}
public function deleteRelated(Notice $notice)
{
// No action needed as we don't have a separate table for share objects.
return true;
}
// Layout stuff
/**
* show a link to the author of repeat
*
* FIXME: Some repeat stuff still in lib/noticelistitem.php! ($nli->repeat etc.)
*/
public function onEndShowNoticeInfo(NoticeListItem $nli)
{
if (!empty($nli->repeat)) {
$repeater = $nli->repeat->getProfile();
$attrs = array('href' => $repeater->getUrl(),
'class' => 'h-card p-author',
'title' => $repeater->getFancyName());
$nli->out->elementStart('span', 'repeat');
// TRANS: Addition in notice list item if notice was repeated. Followed by a span with a nickname.
$nli->out->raw(_('Repeated by').' ');
$nli->out->element('a', $attrs, $repeater->getNickname());
$nli->out->elementEnd('span');
}
}
public function onEndShowThreadedNoticeTailItems(NoticeListItem $nli, Notice $notice, &$threadActive)
{
if ($nli instanceof ThreadedNoticeListSubItem) {
// The sub-items are replies to a conversation, thus we use different HTML elements etc.
$item = new ThreadedNoticeListInlineRepeatsItem($notice, $nli->out);
} else {
$item = new ThreadedNoticeListRepeatsItem($notice, $nli->out);
}
$threadActive = $item->show() || $threadActive;
return true;
}
/**
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* show the "repeat" form in the notice options element
* FIXME: Don't let a NoticeListItemAdapter slip in here (or extend that from NoticeListItem)
*
* @return void
*/
public function onEndShowNoticeOptionItems($nli)
{
// FIXME: Use bitmasks (but be aware that PUBLIC_SCOPE is 0!)
// Also: AHHH, $scope and $scoped are scarily similar looking.
$scope = $nli->notice->getScope();
if ($scope === Notice::PUBLIC_SCOPE || $scope === Notice::SITE_SCOPE) {
$scoped = Profile::current();
if ($scoped instanceof Profile &&
$scoped->getID() !== $nli->notice->getProfile()->getID()) {
if ($scoped->hasRepeated($nli->notice)) {
$nli->out->element('span', array('class' => 'repeated',
// TRANS: Title for repeat form status in notice list when a notice has been repeated.
'title' => _('Notice repeated.')),
// TRANS: Repeat form status in notice list when a notice has been repeated.
_('Repeated'));
} else {
$repeat = new RepeatForm($nli->out, $nli->notice);
$repeat->show();
}
}
}
}
protected function showNoticeListItem(NoticeListItem $nli)
{
// pass
}
public function openNoticeListItemElement(NoticeListItem $nli)
{
// pass
}
public function closeNoticeListItemElement(NoticeListItem $nli)
{
// pass
}
// API stuff
/**
* Typically just used to fill out Twitter-compatible API status data.
*
* FIXME: Make all the calls before this end up with a Notice instead of ArrayWrapper please...
*/
public function onNoticeSimpleStatusArray($notice, array &$status, Profile $scoped=null, array $args=array())
{
$status['repeated'] = $scoped instanceof Profile
? $scoped->hasRepeated($notice)
: false;
if ($status['repeated'] === true) {
// Qvitter API wants the "repeated_id" value set too.
$repeated = Notice::pkeyGet(array('profile_id' => $scoped->getID(),
'repeat_of' => $notice->getID(),
'verb' => ActivityVerb::SHARE));
$status['repeated_id'] = $repeated->getID();
}
}
public function onTwitterUserArray(Profile $profile, array &$userdata, Profile $scoped=null, array $args=array())
{
$userdata['favourites_count'] = Fave::countByProfile($profile);
}
// Command stuff
/**
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* EndInterpretCommand for RepeatPlugin will handle the 'repeat' command
* using the class RepeatCommand.
*
* @param string $cmd Command being run
* @param string $arg Rest of the message (including address)
* @param User $user User sending the message
* @param Command &$result The resulting command object to be run.
*
* @return boolean hook value
*/
public function onStartInterpretCommand($cmd, $arg, $user, &$result)
{
if ($result === false && in_array($cmd, array('repeat', 'rp', 'rt', 'rd'))) {
if (empty($arg)) {
$result = null;
} else {
list($other, $extra) = CommandInterpreter::split_arg($arg);
if (!empty($extra)) {
$result = null;
} else {
$result = new RepeatCommand($user, $other);
}
}
return false;
}
return true;
}
public function onHelpCommandMessages(HelpCommand $help, array &$commands)
{
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// TRANS: Help message for IM/SMS command "repeat #<notice_id>".
$commands['repeat #<notice_id>'] = _m('COMMANDHELP', "repeat a notice with a given id");
// TRANS: Help message for IM/SMS command "repeat <nickname>".
$commands['repeat <nickname>'] = _m('COMMANDHELP', "repeat the last notice from user");
}
/**
* Are we allowed to perform a certain command over the API?
*/
public function onCommandSupportedAPI(Command $cmd, &$supported)
{
$supported = $supported || $cmd instanceof RepeatCommand;
}
protected function getActionTitle(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
// return page title
}
protected function doActionPreparation(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
// prepare Action?
}
protected function doActionPost(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
// handle repeat POST
}
protected function getActivityForm(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
return new RepeatForm($action, $target);
}
public function onPluginVersion(array &$versions)
{
$versions[] = array('name' => 'Share verb',
'version' => self::PLUGIN_VERSION,
'author' => 'Mikael Nordfeldth',
'homepage' => 'https://gnu.io/',
'rawdescription' =>
// TRANS: Plugin description.
_m('Shares (repeats) using ActivityStreams.'));
return true;
}
}