263 lines
7.3 KiB
PHP
263 lines
7.3 KiB
PHP
<?php
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use Friendica\App;
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use Friendica\Core\System;
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use Friendica\Core\Worker;
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use Friendica\Database\DBM;
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use Friendica\Model\Contact;
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use Friendica\Protocol\Diaspora;
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/**
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* @brief add/remove activity to an item
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*
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* Toggle activities as like,dislike,attend of an item
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*
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* @param string $item_id
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* @param string $verb
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* Activity verb. One of
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* like, unlike, dislike, undislike, attendyes, unattendyes,
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* attendno, unattendno, attendmaybe, unattendmaybe
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* @hook 'post_local_end'
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* array $arr
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* 'post_id' => ID of posted item
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*/
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function do_like($item_id, $verb) {
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$a = get_app();
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if (!local_user() && !remote_user()) {
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return false;
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}
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switch ($verb) {
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case 'like':
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$bodyverb = t('%1$s likes %2$s\'s %3$s');
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$activity = ACTIVITY_LIKE;
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break;
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case 'unlike':
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$bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
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$activity = ACTIVITY_LIKE;
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break;
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case 'dislike':
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case 'undislike':
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$bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
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$activity = ACTIVITY_DISLIKE;
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break;
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case 'attendyes':
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case 'unattendyes':
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$bodyverb = t('%1$s is attending %2$s\'s %3$s');
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$activity = ACTIVITY_ATTEND;
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break;
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case 'attendno':
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case 'unattendno':
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$bodyverb = t('%1$s is not attending %2$s\'s %3$s');
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$activity = ACTIVITY_ATTENDNO;
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break;
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case 'attendmaybe':
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case 'unattendmaybe':
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$bodyverb = t('%1$s may attend %2$s\'s %3$s');
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$activity = ACTIVITY_ATTENDMAYBE;
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break;
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default:
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logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
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return false;
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}
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// Enable activity toggling instead of on/off
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$event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
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logger('like: verb ' . $verb . ' item ' . $item_id);
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// Retrieve item
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$items = q("SELECT * FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
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dbesc($item_id),
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dbesc($item_id)
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);
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if (!$item_id || !DBM::is_result($items)) {
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logger('like: unknown item ' . $item_id);
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return false;
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}
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$item = $items[0];
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$uid = $item['uid'];
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if (($uid == 0) && local_user()) {
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$uid = local_user();
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}
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if (!can_write_wall($uid)) {
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logger('like: unable to write on wall ' . $uid);
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return false;
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}
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// Retrieves the local post owner
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$owners = q("SELECT `contact`.* FROM `contact`
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WHERE `contact`.`self`
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AND `contact`.`uid` = %d",
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intval($uid)
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);
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if (DBM::is_result($owners)) {
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$owner_self_contact = $owners[0];
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} else {
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logger('like: unknown owner ' . $uid);
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return false;
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}
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// Retrieve the current logged in user's public contact
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$author_id = public_contact();
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$contacts = q("SELECT * FROM `contact` WHERE `id` = %d",
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intval($author_id)
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);
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if (DBM::is_result($contacts)) {
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$author_contact = $contacts[0];
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} else {
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logger('like: unknown author ' . $author_id);
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return false;
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}
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// Contact-id is the uid-dependant author contact
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if (local_user() == $uid) {
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$item_contact_id = $owner_self_contact['id'];
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$item_contact = $owner_self_contact;
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} else {
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$item_contact_id = Contact::getIdForURL($author_contact['url'], $uid);
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$contacts = q("SELECT * FROM `contact` WHERE `id` = %d",
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intval($item_contact_id)
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);
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if (DBM::is_result($contacts)) {
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$item_contact = $contacts[0];
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} else {
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logger('like: unknown item contact ' . $item_contact_id);
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return false;
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}
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}
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// Look for an existing verb row
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// event participation are essentially radio toggles. If you make a subsequent choice,
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// we need to eradicate your first choice.
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if ($event_verb_flag) {
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$verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
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} else {
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$verbs = "'".dbesc($activity)."'";
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}
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$existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
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WHERE `verb` IN ($verbs)
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AND `deleted` = 0
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AND `author-id` = %d
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AND `uid` = %d
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AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
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LIMIT 1",
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intval($author_contact['id']),
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intval($item['uid']),
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dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
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);
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// If it exists, mark it as deleted
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if (DBM::is_result($existing_like)) {
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$like_item = $existing_like[0];
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// Already voted, undo it
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q("UPDATE `item` SET `deleted` = 1, `unseen` = 1, `changed` = '%s' WHERE `id` = %d",
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dbesc(datetime_convert()),
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intval($like_item['id'])
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);
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// Clean up the Diaspora signatures for this like
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// Go ahead and do it even if Diaspora support is disabled. We still want to clean up
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// if it had been enabled in the past
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dba::delete('sign', ['iid' => $like_item['id']]);
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$like_item_id = $like_item['id'];
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Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
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if (!$event_verb_flag || $like_item['verb'] == $activity) {
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return true;
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}
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}
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// Verb is "un-something", just trying to delete existing entries
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if (strpos($verb, 'un') === 0) {
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return true;
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}
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// Else or if event verb different from existing row, create a new item row
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$post_type = (($item['resource-id']) ? t('photo') : t('status'));
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if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
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$post_type = t('event');
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}
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$objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
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$link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
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$body = $item['body'];
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$obj = <<< EOT
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<object>
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<type>$objtype</type>
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<local>1</local>
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<id>{$item['uri']}</id>
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<link>$link</link>
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<title></title>
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<content>$body</content>
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</object>
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EOT;
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$ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
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$alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
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$plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
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$new_item = [
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'guid' => get_guid(32),
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'uri' => item_new_uri($a->get_hostname(), $item['uid']),
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'uid' => $item['uid'],
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'contact-id' => $item_contact_id,
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'type' => 'activity',
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'wall' => $item['wall'],
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'origin' => 1,
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'gravity' => GRAVITY_LIKE,
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'parent' => $item['id'],
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'parent-uri' => $item['uri'],
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'thr-parent' => $item['uri'],
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'owner-id' => $item['owner-id'],
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'owner-name' => $item['owner-name'],
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'owner-link' => $item['owner-link'],
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'owner-avatar' => $item['owner-avatar'],
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'author-id' => $author_contact['id'],
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'author-name' => $author_contact['name'],
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'author-link' => $author_contact['url'],
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'author-avatar' => $author_contact['thumb'],
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'body' => sprintf($bodyverb, $ulink, $alink, $plink),
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'verb' => $activity,
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'object-type' => $objtype,
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'object' => $obj,
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'allow_cid' => $item['allow_cid'],
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'allow_gid' => $item['allow_gid'],
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'deny_cid' => $item['deny_cid'],
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'deny_gid' => $item['deny_gid'],
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'visible' => 1,
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'unseen' => 1,
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];
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$new_item_id = item_store($new_item);
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// @todo: Explain this block
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if (! $item['visible']) {
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q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d",
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intval($item['id'])
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);
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}
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// Save the author information for the like in case we need to relay to Diaspora
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Diaspora::storeLikeSignature($item_contact, $new_item_id);
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$new_item['id'] = $new_item_id;
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call_hooks('post_local_end', $new_item);
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Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
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return true;
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}
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