Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
require_once("include/diaspora.php");
/**
* @brief add/remove activity to an item
*
* Toggle activities as like,dislike,attend of an item
*
* @param string $item_id
* @param string $verb
* Activity verb. One of
* like, unlike, dislike, undislike, attendyes, unattendyes,
* attendno, unattendno, attendmaybe, unattendmaybe
* @hook 'post_local_end'
* array $arr
* 'post_id' => ID of posted item
*/
function do_like($item_id, $verb) {
$a = get_app();
if(! local_user() && ! remote_user()) {
return false;
}
switch($verb) {
case 'like':
case 'unlike':
$activity = ACTIVITY_LIKE;
break;
case 'dislike':
case 'undislike':
$activity = ACTIVITY_DISLIKE;
break;
case 'attendyes':
case 'unattendyes':
$activity = ACTIVITY_ATTEND;
break;
case 'attendno':
case 'unattendno':
$activity = ACTIVITY_ATTENDNO;
break;
case 'attendmaybe':
case 'unattendmaybe':
$activity = ACTIVITY_ATTENDMAYBE;
break;
default:
return false;
break;
}
logger('like: verb ' . $verb . ' item ' . $item_id);
$r = q("SELECT * FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1",
dbesc($item_id),
dbesc($item_id)
);
if(! $item_id || (! dbm::is_result($r))) {
logger('like: no item ' . $item_id);
return false;
}
$item = $r[0];
$owner_uid = $item['uid'];
if (! can_write_wall($a,$owner_uid)) {
return false;
}
$remote_owner = null;
if(! $item['wall']) {
// The top level post may have been written by somebody on another system
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($item['contact-id']),
intval($item['uid'])
);
if (! dbm::is_result($r)) {
return false;
}
if (! $r[0]['self']) {
$remote_owner = $r[0];
}
}
// this represents the post owner on this system.
$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
intval($owner_uid)
);
if (dbm::is_result($r)) {
$owner = $r[0];
}
if (! $owner) {
logger('like: no owner');
return false;
}
if (! $remote_owner) {
$remote_owner = $owner;
}
// This represents the person posting
if ((local_user()) && (local_user() == $owner_uid)) {
$contact = $owner;
} else {
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($_SESSION['visitor_id']),
intval($owner_uid)
);
if (dbm::is_result($r))
$contact = $r[0];
}
if (! $contact) {
return false;
}
$verbs = " '".dbesc($activity)."' ";
// event participation are essentially radio toggles. If you make a subsequent choice,
// we need to eradicate your first choice.
if ($activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE) {
$verbs = " '" . dbesc(ACTIVITY_ATTEND) . "','" . dbesc(ACTIVITY_ATTENDNO) . "','" . dbesc(ACTIVITY_ATTENDMAYBE) . "' ";
}
$r = q("SELECT `id`, `guid` FROM `item` WHERE `verb` IN ( $verbs ) AND `deleted` = 0
AND `contact-id` = %d AND `uid` = %d
AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s') LIMIT 1",
intval($contact['id']), intval($owner_uid),
dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
);
if (dbm::is_result($r)) {
$like_item = $r[0];
// Already voted, undo it
$r = q("UPDATE `item` SET `deleted` = 1, `unseen` = 1, `changed` = '%s' WHERE `id` = %d",
dbesc(datetime_convert()),
intval($like_item['id'])
);
// Clean up the Diaspora signatures for this like
// Go ahead and do it even if Diaspora support is disabled. We still want to clean up
// if it had been enabled in the past
$r = q("DELETE FROM `sign` WHERE `iid` = %d",
intval($like_item['id'])
);
$like_item_id = $like_item['id'];
proc_run(PRIORITY_HIGH, "include/notifier.php", "like", $like_item_id);
return true;
}
$uri = item_new_uri($a->get_hostname(),$owner_uid);
$post_type = (($item['resource-id']) ? t('photo') : t('status'));
if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
$post_type = t('event');
}
$objtype = (($item['resource-id']) ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE );
$link = xmlify('<link rel="alternate" type="text/html" href="' . App::get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ;
$body = $item['body'];
$obj = <<< EOT
<object>
<type>$objtype</type>
<local>1</local>
<id>{$item['uri']}</id>
<link>$link</link>
<title></title>
<content>$body</content>
</object>
EOT;
if ($verb === 'like') {
$bodyverb = t('%1$s likes %2$s\'s %3$s');
}
if ($verb === 'dislike') {
$bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
}
if ($verb === 'attendyes') {
$bodyverb = t('%1$s is attending %2$s\'s %3$s');
}
if ($verb === 'attendno') {
$bodyverb = t('%1$s is not attending %2$s\'s %3$s');
}
if ($verb === 'attendmaybe') {
$bodyverb = t('%1$s may attend %2$s\'s %3$s');
}
if (! isset($bodyverb)) {
return false;
}
$ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
$alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
$plink = '[url=' . App::get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
/// @TODO Or rewrite this to multi-line initialization of the array?
$arr = array();
$arr['guid'] = get_guid(32);
$arr['uri'] = $uri;
$arr['uid'] = $owner_uid;
$arr['contact-id'] = $contact['id'];
$arr['type'] = 'activity';
$arr['wall'] = $item['wall'];
$arr['origin'] = 1;
$arr['gravity'] = GRAVITY_LIKE;
$arr['parent'] = $item['id'];
$arr['parent-uri'] = $item['uri'];
$arr['thr-parent'] = $item['uri'];
$arr['owner-name'] = $remote_owner['name'];
$arr['owner-link'] = $remote_owner['url'];
$arr['owner-avatar'] = $remote_owner['thumb'];
$arr['author-name'] = $contact['name'];
$arr['author-link'] = $contact['url'];
$arr['author-avatar'] = $contact['thumb'];
$arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
$arr['verb'] = $activity;
$arr['object-type'] = $objtype;
$arr['object'] = $obj;
$arr['allow_cid'] = $item['allow_cid'];
$arr['allow_gid'] = $item['allow_gid'];
$arr['deny_cid'] = $item['deny_cid'];
$arr['deny_gid'] = $item['deny_gid'];
$arr['visible'] = 1;
$arr['unseen'] = 1;
$arr['last-child'] = 0;
$post_id = item_store($arr);
if (! $item['visible']) {
$r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d",
intval($item['id']),
intval($owner_uid)
);
}
// Save the author information for the like in case we need to relay to Diaspora
diaspora::store_like_signature($contact, $post_id);
$arr['id'] = $post_id;
call_hooks('post_local_end', $arr);
proc_run(PRIORITY_HIGH, "include/notifier.php", "like", $post_id);
return true;
}