<?php
namespace Zotlabs\Lib;
use Zotlabs\Access\PermissionLimits;
use Zotlabs\Daemon\Master;
use Zotlabs\Web\HTTPSig;
require_once('include/event.php');
require_once('include/html2plain.php');
class Activity {
static function encode_object($x) {
if(($x) && (! is_array($x)) && (substr(trim($x),0,1)) === '{' ) {
$x = json_decode($x,true);
}
if(is_array($x)) {
if(array_key_exists('asld',$x)) {
return $x['asld'];
}
if($x['type'] === ACTIVITY_OBJ_PERSON) {
return self::fetch_person($x);
}
if($x['type'] === ACTIVITY_OBJ_PROFILE) {
return self::fetch_profile($x);
}
if(in_array($x['type'], [ ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_ARTICLE ] )) {
return self::fetch_item($x);
}
if($x['type'] === ACTIVITY_OBJ_THING) {
return self::fetch_thing($x);
}
if($x['type'] === ACTIVITY_OBJ_EVENT) {
return self::fetch_event($x);
}
if($x['type'] === ACTIVITY_OBJ_PHOTO) {
return self::fetch_image($x);
}
call_hooks('encode_object',$x);
}
return $x;
}
static function fetch($url,$channel = null) {
$redirects = 0;
if(! check_siteallowed($url)) {
logger('blacklisted: ' . $url);
return null;
}
if(! $channel) {
$channel = get_sys_channel();
}
logger('fetch: ' . $url, LOGGER_DEBUG);
if(strpos($url,'x-zot:') === 0) {
$x = ZotURL::fetch($url,$channel);
}
else {
$m = parse_url($url);
// handle bearcaps
if ($m['scheme'] === 'bear') {
$params = explode('&',$m['query']);
if ($params) {
foreach ($params as $p) {
if (substr($p,0,2) === 'u=') {
$url = substr($p,2);
}
if (substr($p,0,2) === 't=') {
$token = substr($p,2);
}
}
$m = parse_url($url);
}
}
$headers = [
'Accept' => 'application/activity+json, application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
'Host' => $m['host'],
'Date' => datetime_convert('UTC','UTC', 'now', 'D, d M Y H:i:s \\G\\M\\T'),
'(request-target)' => 'get ' . get_request_string($url)
];
if (isset($token)) {
$headers['Authorization'] = 'Bearer ' . $token;
}
$h = HTTPSig::create_sig($headers,$channel['channel_prvkey'],channel_url($channel),false);
$x = z_fetch_url($url, true, $redirects, [ 'headers' => $h ] );
}
if($x['success']) {
$y = json_decode($x['body'],true);
logger('returned: ' . json_encode($y,JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES), LOGGER_DEBUG);
return json_decode($x['body'], true);
}
else {
logger('fetch failed: ' . $url);
}
return null;
}
static function fetch_person($x) {
return self::fetch_profile($x);
}
static function fetch_profile($x) {
$r = q("select * from xchan where xchan_url like '%s' limit 1",
dbesc($x['id'] . '/%')
);
if(! $r) {
$r = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($x['id'])
);
}
if(! $r)
return [];
return self::encode_person($r[0]);
}
static function fetch_thing($x) {
$r = q("select * from obj where obj_type = %d and obj_obj = '%s' limit 1",
intval(TERM_OBJ_THING),
dbesc($x['id'])
);
if(! $r)
return [];
$x = [
'type' => 'Object',
'id' => z_root() . '/thing/' . $r[0]['obj_obj'],
'name' => $r[0]['obj_term']
];
if($r[0]['obj_image'])
$x['image'] = $r[0]['obj_image'];
return $x;
}
static function fetch_item($x) {
if (array_key_exists('source',$x)) {
// This item is already processed and encoded
return $x;
}
$r = q("select * from item where mid = '%s' limit 1",
dbesc($x['id'])
);
if($r) {
xchan_query($r,true);
$r = fetch_post_tags($r,true);
if ($r[0]['verb'] === 'Create' && $r[0]['obj_type'] === ACTIVITY_OBJ_EVENT) {
$r[0]['verb'] = 'Invite';
return self::encode_activity($r[0]);
}
return self::encode_item($r[0]);
}
}
static function fetch_image($x) {
$ret = [
'type' => 'Image',
'id' => $x['id'],
'name' => $x['title'],
'content' => bbcode($x['body'], [ 'cache' => true ]),
'source' => [ 'mediaType' => 'text/bbcode', 'content' => $x['body'] ],
'published' => datetime_convert('UTC','UTC',$x['created'],ATOM_TIME),
'updated' => datetime_convert('UTC','UTC', $x['edited'],ATOM_TIME),
'url' => [
'type' => 'Link',
'mediaType' => $x['link'][0]['type'],
'href' => $x['link'][0]['href'],
'width' => $x['link'][0]['width'],
'height' => $x['link'][0]['height']
]
];
return $ret;
}
static function fetch_event($x) {
// convert old Zot event objects to ActivityStreams Event objects
if (array_key_exists('content',$x) && array_key_exists('dtstart',$x)) {
$ev = bbtoevent($x['content']);
if($ev) {
if (! $ev['timezone']) {
$ev['timezone'] = 'UTC';
}
$actor = null;
if(array_key_exists('author',$x) && array_key_exists('link',$x['author'])) {
$actor = $x['author']['link'][0]['href'];
}
$y = [
'type' => 'Event',
'id' => z_root() . '/event/' . $ev['event_hash'],
'name' => $ev['summary'],
// 'summary' => bbcode($ev['summary'], [ 'cache' => true ]),
// RFC3339 Section 4.3
'startTime' => (($ev['adjust']) ? datetime_convert($ev['timezone'],'UTC',$ev['dtstart'], ATOM_TIME) : datetime_convert('UTC','UTC',$ev['dtstart'],'Y-m-d\\TH:i:s-00:00')),
'content' => bbcode($ev['description'], [ 'cache' => true ]),
'location' => [ 'type' => 'Place', 'content' => bbcode($ev['location'], [ 'cache' => true ]) ],
'source' => [ 'content' => format_event_bbcode($ev,true), 'mediaType' => 'text/bbcode' ],
'actor' => $actor,
];
if(! $ev['nofinish']) {
$y['endTime'] = (($ev['adjust']) ? datetime_convert($ev['timezone'],'UTC',$ev['dtend'], ATOM_TIME) : datetime_convert('UTC','UTC',$ev['dtend'],'Y-m-d\\TH:i:s-00:00'));
}
// copy attachments from the passed object - these are already formatted for ActivityStreams
if($x['attachment']) {
$y['attachment'] = $x['attachment'];
}
if($actor) {
return $y;
}
}
}
return $x;
}
static function encode_item_collection($items,$id,$type,$extra = null) {
$ret = [
'id' => z_root() . '/' . $id,
'type' => $type,
'totalItems' => count($items),
];
if($extra)
$ret = array_merge($ret,$extra);
if($items) {
$x = [];
foreach($items as $i) {
$t = self::encode_activity($i);
if($t)
$x[] = $t;
}
if($type === 'OrderedCollection')
$ret['orderedItems'] = $x;
else
$ret['items'] = $x;
}
return $ret;
}
static function encode_follow_collection($items,$id,$type,$extra = null) {
$ret = [
'id' => z_root() . '/' . $id,
'type' => $type,
'totalItems' => count($items),
];
if($extra)
$ret = array_merge($ret,$extra);
if($items) {
$x = [];
foreach($items as $i) {
if($i['xchan_url']) {
$x[] = $i['xchan_url'];
}
}
if($type === 'OrderedCollection')
$ret['orderedItems'] = $x;
else
$ret['items'] = $x;
}
return $ret;
}
static function encode_item($i) {
$ret = [];
if($i['verb'] === ACTIVITY_FRIEND) {
// Hubzilla 'make-friend' activity, no direct mapping from AS1 to AS2 - make it a note
$objtype = 'Note';
}
else {
$objtype = self::activity_obj_mapper($i['obj_type']);
}
if(intval($i['item_deleted'])) {
$ret['type'] = 'Tombstone';
$ret['formerType'] = $objtype;
$ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/item/' . urlencode($i['mid']));
return $ret;
}
if ($i['obj']) {
$ret = Activity::encode_object($i['obj']);
}
$ret['type'] = $objtype;
if ($objtype === 'Question') {
if ($i['obj']) {
if (is_array($i['obj'])) {
$ret = $i['obj'];
}
else {
$ret = json_decode($i['obj'],true);
}
if(array_path_exists('actor/id',$ret)) {
$ret['actor'] = $ret['actor']['id'];
}
}
}
$ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/item/' . urlencode($i['mid']));
if($i['title'])
$ret['name'] = $i['title'];
$ret['published'] = datetime_convert('UTC','UTC',$i['created'],ATOM_TIME);
if($i['created'] !== $i['edited'])
$ret['updated'] = datetime_convert('UTC','UTC',$i['edited'],ATOM_TIME);
if ($i['expires'] <= NULL_DATE) {
$ret['expires'] = datetime_convert('UTC','UTC',$i['expires'],ATOM_TIME);
}
if($i['app']) {
$ret['generator'] = [ 'type' => 'Application', 'name' => $i['app'] ];
}
if($i['location'] || $i['coord']) {
$ret['location'] = [ 'type' => 'Place' ];
if($i['location']) {
$ret['location']['name'] = $i['location'];
}
if($i['coord']) {
$l = explode(' ',$i['coord']);
$ret['location']['latitude'] = $l[0];
$ret['location']['longitude'] = $l[1];
}
}
if (intval($i['item_wall']) && $i['mid'] === $i['parent_mid']) {
$ret['commentPolicy'] = map_scope(PermissionLimits::Get($i['uid'],'post_comments'));
}
if (intval($i['item_private']) === 2) {
$ret['directMessage'] = true;
}
if (array_key_exists('comments_closed',$i) && $i['comments_closed'] !== EMPTY_STR && $i['comments_closed'] !== NULL_DATE) {
if($ret['commentPolicy']) {
$ret['commentPolicy'] .= ' ';
}
$ret['commentPolicy'] .= 'until=' . datetime_convert('UTC','UTC',$i['comments_closed'],ATOM_TIME);
}
$ret['attributedTo'] = $i['author']['xchan_url'];
if($i['id'] != $i['parent']) {
$ret['inReplyTo'] = ((strpos($i['thr_parent'],'http') === 0) ? $i['thr_parent'] : z_root() . '/item/' . urlencode($i['thr_parent']));
}
if($i['mimetype'] === 'text/bbcode') {
if($i['title'])
$ret['name'] = bbcode($i['title'], [ 'cache' => true ]);
if($i['summary'])
$ret['summary'] = bbcode($i['summary'], [ 'cache' => true ]);
$ret['content'] = bbcode($i['body'], [ 'cache' => true ]);
$ret['source'] = [ 'content' => $i['body'], 'mediaType' => 'text/bbcode' ];
}
$actor = self::encode_person($i['author'],false);
if($actor)
$ret['actor'] = $actor;
else
return [];
$t = self::encode_taxonomy($i);
if($t) {
$ret['tag'] = $t;
}
$a = self::encode_attachment($i);
if($a) {
$ret['attachment'] = $a;
}
$public = (($i['item_private']) ? false : true);
$top_level = (($i['mid'] === $i['parent_mid']) ? true : false);
if ($public) {
$ret['to'] = [ ACTIVITY_PUBLIC_INBOX ];
$ret['cc'] = [ z_root() . '/followers/' . substr($i['author']['xchan_addr'],0,strpos($i['author']['xchan_addr'],'@')) ];
}
else {
// private activity
if ($top_level) {
$ret['to'] = self::map_acl($i);
}
else {
$ret['to'] = [];
if ($ret['tag']) {
foreach ($ret['tag'] as $mention) {
if (is_array($mention) && array_key_exists('href',$mention) && $mention['href']) {
$h = q("select * from hubloc where hubloc_id_url = '%s' limit 1",
dbesc($mention['href'])
);
if ($h) {
if ($h[0]['hubloc_network'] === 'activitypub') {
$addr = $h[0]['hubloc_hash'];
}
else {
$addr = $h[0]['hubloc_id_url'];
}
if (! in_array($addr,$ret['to'])) {
$ret['to'][] = $addr;
}
}
}
}
}
$d = q("select hubloc.* from hubloc left join item on hubloc_hash = owner_xchan where item.id = %d limit 1",
intval($i['parent'])
);
if ($d) {
if ($d[0]['hubloc_network'] === 'activitypub') {
$addr = $d[0]['hubloc_hash'];
}
else {
$addr = $d[0]['hubloc_id_url'];
}
if (! in_array($addr,$ret['to'])) {
$ret['cc'][] = $addr;
}
}
}
}
$mentions = self::map_mentions($i);
if (count($mentions) > 0) {
if (! $ret['to']) {
$ret['to'] = $mentions;
}
else {
$ret['to'] = array_values(array_unique(array_merge($ret['to'], $mentions)));
}
}
return $ret;
}
static function decode_taxonomy($item) {
$ret = [];
if ($item['tag'] && is_array($item['tag'])) {
$ptr = $item['tag'];
if (! array_key_exists(0,$ptr)) {
$ptr = [ $ptr ];
}
foreach ($ptr as $t) {
if (! array_key_exists('type',$t))
$t['type'] = 'Hashtag';
switch($t['type']) {
case 'Hashtag':
$ret[] = [ 'ttype' => TERM_HASHTAG, 'url' => $t['href'], 'term' => escape_tags((substr($t['name'],0,1) === '#') ? substr($t['name'],1) : $t['name']) ];
break;
case 'Mention':
$mention_type = substr($t['name'],0,1);
if ($mention_type === '!') {
$ret[] = [ 'ttype' => TERM_FORUM, 'url' => $t['href'], 'term' => escape_tags(substr($t['name'],1)) ];
}
else {
$ret[] = [ 'ttype' => TERM_MENTION, 'url' => $t['href'], 'term' => escape_tags((substr($t['name'],0,1) === '@') ? substr($t['name'],1) : $t['name']) ];
}
break;
default:
break;
}
}
}
return $ret;
}
static function encode_taxonomy($item) {
$ret = [];
if($item['term']) {
foreach($item['term'] as $t) {
switch($t['ttype']) {
case TERM_HASHTAG:
// href is required so if we don't have a url in the taxonomy, ignore it and keep going.
if($t['url']) {
$ret[] = [ 'type' => 'Hashtag', 'href' => $t['url'], 'name' => '#' . $t['term'] ];
}
break;
case TERM_FORUM:
$ret[] = [ 'type' => 'Mention', 'href' => $t['url'], 'name' => '!' . $t['term'] ];
break;
case TERM_MENTION:
$ret[] = [ 'type' => 'Mention', 'href' => $t['url'], 'name' => '@' . $t['term'] ];
break;
default:
break;
}
}
}
return $ret;
}
static function encode_attachment($item) {
$ret = [];
if($item['attach']) {
$atts = ((is_array($item['attach'])) ? $item['attach'] : json_decode($item['attach'],true));
if($atts) {
foreach($atts as $att) {
if(strpos($att['type'],'image')) {
$ret[] = [ 'type' => 'Image', 'url' => $att['href'] ];
}
else {
$ret[] = [ 'type' => 'Link', 'mediaType' => $att['type'], 'href' => $att['href'] ];
}
}
}
}
if ($item['iconfig']) {
foreach ($item['iconfig'] as $att) {
if ($att['sharing']) {
$value = ((is_string($att['v']) && preg_match('|^a:[0-9]+:{.*}$|s', $att['v'])) ? unserialize($att['v']) : $att['v']);
$ret[] = [ 'type' => 'PropertyValue', 'name' => 'zot.' . $att['cat'] . '.' . $att['k'], 'value' => $value ];
}
}
}
return $ret;
}
static function decode_iconfig($item) {
$ret = [];
if (is_array($item['attachment']) && $item['attachment']) {
$ptr = $item['attachment'];
if (! array_key_exists(0,$ptr)) {
$ptr = [ $ptr ];
}
foreach ($ptr as $att) {
$entry = [];
if ($att['type'] === 'PropertyValue') {
if (array_key_exists('name',$att) && $att['name']) {
$key = explode('.',$att['name']);
if (count($key) === 3 && $key[0] === 'zot') {
$entry['cat'] = $key[1];
$entry['k'] = $key[2];
$entry['v'] = $att['value'];
$entry['sharing'] = '1';
$ret[] = $entry;
}
}
}
}
}
return $ret;
}
static function decode_attachment($item) {
$ret = [];
if($item['attachment']) {
foreach($item['attachment'] as $att) {
$entry = [];
if($att['href'])
$entry['href'] = $att['href'];
elseif($att['url'])
$entry['href'] = $att['url'];
if($att['mediaType'])
$entry['type'] = $att['mediaType'];
elseif($att['type'] === 'Image')
$entry['type'] = 'image/jpeg';
if($entry)
$ret[] = $entry;
}
}
return $ret;
}
static function encode_activity($i) {
$ret = [];
$reply = false;
if($i['verb'] === ACTIVITY_FRIEND) {
// Hubzilla 'make-friend' activity, no direct mapping from AS1 to AS2 - make it a note
$ret['obj'] = [];
}
if(intval($i['item_deleted'])) {
$ret['type'] = 'Tombstone';
$ret['formerType'] = self::activity_obj_mapper($i['obj_type']);
$ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/item/' . urlencode($i['mid']));
$actor = self::encode_person($i['author'],false);
if($actor)
$ret['actor'] = $actor;
else
return [];
return $ret;
}
$ret['type'] = self::activity_mapper($i['verb']);
if($ret['type'] === 'emojiReaction') {
// There may not be an object for these items for legacy reasons - it should be the conversation parent.
$p = q("select * from item where mid = '%s' and uid = %d",
dbesc($i['parent_mid']),
intval($i['uid'])
);
if($p) {
xchan_query($p,true);
$p = fetch_post_tags($p,true);
$i['obj'] = self::encode_item($p[0]);
// convert to zot6 emoji reaction encoding which uses the target object to indicate the
// specific emoji instead of overloading the verb or type.
$im = explode('#',$i['verb']);
if($im && count($im) > 1)
$emoji = $im[1];
if(preg_match("/\[img(.*?)\](.*?)\[\/img\]/ism", $i['body'], $match)) {
$ln = $match[2];
}
$i['tgt_type'] = 'Image';
$i['target'] = [
'type' => 'Image',
'name' => $emoji,
'url' => (($ln) ? $ln : z_root() . '/images/emoji/' . $emoji . '.png')
];
}
}
if (strpos($i['mid'],z_root() . '/item/') !== false) {
$ret['id'] = str_replace('/item/','/activity/',$i['mid']);
}
elseif (strpos($i['mid'],z_root() . '/event/') !== false) {
$ret['id'] = str_replace('/event/','/activity/',$i['mid']);
}
else {
$ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/activity/' . urlencode($i['mid']));
}
if($i['title'])
$ret['name'] = html2plain(bbcode($i['title'], [ 'cache' => true ]));
if($i['summary'])
$ret['summary'] = bbcode($i['summary'], [ 'cache' => true ]);
if($ret['type'] === 'Announce') {
$tmp = preg_replace('/\[share(.*?)\[\/share\]/ism',EMPTY_STR, $i['body']);
$ret['content'] = bbcode($tmp, [ 'cache' => true ]);
$ret['source'] = [
'content' => $i['body'],
'mediaType' => 'text/bbcode'
];
}
$ret['published'] = datetime_convert('UTC','UTC',$i['created'],ATOM_TIME);
if($i['created'] !== $i['edited'])
$ret['updated'] = datetime_convert('UTC','UTC',$i['edited'],ATOM_TIME);
if($i['app']) {
$ret['generator'] = [ 'type' => 'Application', 'name' => $i['app'] ];
}
if($i['location'] || $i['coord']) {
$ret['location'] = [ 'type' => 'Place' ];
if($i['location']) {
$ret['location']['name'] = $i['location'];
}
if($i['coord']) {
$l = explode(' ',$i['coord']);
$ret['location']['latitude'] = $l[0];
$ret['location']['longitude'] = $l[1];
}
}
if($i['id'] != $i['parent']) {
$reply = true;
// inReplyTo needs to be set in the activity for followup actions (Like, Dislike, Announce, etc.),
// but *not* for comments and RSVPs, where it should only be present in the object
if (! in_array($ret['type'],[ 'Create','Update','Accept','Reject','TentativeAccept','TentativeReject' ])) {
$ret['inReplyTo'] = ((strpos($i['thr_parent'],'http') === 0) ? $i['thr_parent'] : z_root() . '/item/' . urlencode($i['thr_parent']));
}
if($i['item_private']) {
$d = q("select xchan_url, xchan_addr, xchan_name from item left join xchan on xchan_hash = author_xchan where id = %d limit 1",
intval($i['parent'])
);
if($d) {
$is_directmessage = false;
$recips = get_iconfig($i['parent'], 'activitypub', 'recips');
if(in_array($i['author']['xchan_url'], $recips['to'])) {
$reply_url = $d[0]['xchan_url'];
$is_directmessage = true;
}
else {
$reply_url = z_root() . '/followers/' . substr($i['author']['xchan_addr'],0,strpos($i['author']['xchan_addr'],'@'));
}
$reply_addr = (($d[0]['xchan_addr']) ? $d[0]['xchan_addr'] : $d[0]['xchan_name']);
}
}
}
$actor = self::encode_person($i['author'],false);
if($actor)
$ret['actor'] = $actor;
else
return [];
if(strpos($i['body'],'[/share]') !== false) {
$i['obj'] = null;
}
if($i['obj']) {
if(! is_array($i['obj'])) {
$i['obj'] = json_decode($i['obj'],true);
}
if($i['obj']['type'] === ACTIVITY_OBJ_PHOTO) {
$i['obj']['id'] = $i['mid'];
}
$obj = self::encode_object($i['obj']);
if($obj)
$ret['object'] = $obj;
else
return [];
}
else {
$obj = self::encode_item($i);
if($obj)
$ret['object'] = $obj;
else
return [];
}
if(array_path_exists('object/type',$ret) && $ret['object']['type'] === 'Event' && $ret['type'] === 'Create') {
$ret['type'] = 'Invite';
}
if($i['target']) {
if(! is_array($i['target'])) {
$i['target'] = json_decode($i['target'],true);
}
$tgt = self::encode_object($i['target']);
if($tgt)
$ret['target'] = $tgt;
else
return [];
}
$t = self::encode_taxonomy($i);
if ($t) {
$ret['tag'] = $t;
}
// addressing madness
$public = (($i['item_private']) ? false : true);
$top_level = (($reply) ? false : true);
if ($public) {
$ret['to'] = [ ACTIVITY_PUBLIC_INBOX ];
$ret['cc'] = [ z_root() . '/followers/' . substr($i['author']['xchan_addr'],0,strpos($i['author']['xchan_addr'],'@')) ];
}
else {
// private activity
if ($top_level) {
$ret['to'] = self::map_acl($i);
}
else {
$ret['to'] = [];
if ($ret['tag']) {
foreach ($ret['tag'] as $mention) {
if (is_array($mention) && array_key_exists('href',$mention) && $mention['href']) {
$h = q("select * from hubloc where hubloc_id_url = '%s' limit 1",
dbesc($mention['href'])
);
if ($h) {
if ($h[0]['hubloc_network'] === 'activitypub') {
$addr = $h[0]['hubloc_hash'];
}
else {
$addr = $h[0]['hubloc_id_url'];
}
if (! in_array($addr,$ret['to'])) {
$ret['to'][] = $addr;
}
}
}
}
}
$d = q("select hubloc.* from hubloc left join item on hubloc_hash = owner_xchan where item.id = %d limit 1",
intval($i['parent'])
);
if ($d) {
if ($d[0]['hubloc_network'] === 'activitypub') {
$addr = $d[0]['hubloc_hash'];
}
else {
$addr = $d[0]['hubloc_id_url'];
}
if (! in_array($addr,$ret['to'])) {
$ret['cc'][] = $addr;
}
}
}
}
$mentions = self::map_mentions($i);
if (count($mentions) > 0) {
if (! $ret['to']) {
$ret['to'] = $mentions;
}
else {
$ret['to'] = array_values(array_unique(array_merge($ret['to'], $mentions)));
}
}
return $ret;
}
// Returns an array of URLS for any mention tags found in the item array $i.
static function map_mentions($i) {
if (! $i['term']) {
return [];
}
$list = [];
foreach ($i['term'] as $t) {
if (! $t['url']) {
continue;
}
if ($t['ttype'] == TERM_MENTION) {
$url = self::lookup_term_url($t['url']);
$list[] = (($url) ? $url : $t['url']);
}
}
return $list;
}
// Returns an array of all recipients targeted by private item array $i.
static function map_acl($i) {
$ret = [];
if (! $i['item_private']) {
return $ret;
}
if ($i['allow_gid']) {
$tmp = expand_acl($i['allow_gid']);
if ($tmp) {
foreach ($tmp as $t) {
$ret[] = z_root() . '/lists/' . $t;
}
}
}
if ($i['allow_cid']) {
$tmp = expand_acl($i['allow_cid']);
$list = stringify_array($tmp,true);
if ($list) {
$details = q("select hubloc_id_url from hubloc where hubloc_hash in (" . $list . ") and hubloc_id_url != ''");
if ($details) {
foreach ($details as $d) {
$ret[] = $d['hubloc_id_url'];
}
}
}
}
return $ret;
}
static function lookup_term_url($url) {
// The xchan_url for mastodon is a text/html rendering. This is called from map_mentions where we need
// to convert the mention url to an ActivityPub id. If this fails for any reason, return the url we have
$r = q("select hubloc_network, hubloc_hash, hubloc_id_url from hubloc where hubloc_id_url = '%s' limit 1",
dbesc($url)
);
if ($r) {
if ($r[0]['hubloc_network'] === 'activitypub') {
return $r[0]['hubloc_hash'];
}
return $r[0]['hubloc_id_url'];
}
return $url;
}
static function encode_person($p, $extended = true) {
if(! $p['xchan_url'])
return [];
if(! $extended) {
return $p['xchan_url'];
}
$ret = [];
$c = ((array_key_exists('channel_id',$p)) ? $p : channelx_by_hash($p['xchan_hash']));
$ret['type'] = 'Person';
if ($c) {
$role = get_pconfig($c['channel_id'],'system','permissions_role');
if (strpos($role,'forum') !== false) {
$ret['type'] = 'Group';
}
}
if ($c) {
$ret['id'] = channel_url($c);
}
else {
$ret['id'] = ((strpos($p['xchan_hash'],'http') === 0) ? $p['xchan_hash'] : $p['xchan_url']);
}
if($p['xchan_addr'] && strpos($p['xchan_addr'],'@'))
$ret['preferredUsername'] = substr($p['xchan_addr'],0,strpos($p['xchan_addr'],'@'));
$ret['name'] = $p['xchan_name'];
$ret['updated'] = datetime_convert('UTC','UTC',$p['xchan_name_date'],ATOM_TIME);
$ret['icon'] = [
'type' => 'Image',
'mediaType' => (($p['xchan_photo_mimetype']) ? $p['xchan_photo_mimetype'] : 'image/png' ),
'updated' => datetime_convert('UTC','UTC',$p['xchan_photo_date'],ATOM_TIME),
'url' => $p['xchan_photo_l'],
'height' => 300,
'width' => 300,
];
$ret['url'] = [
[
'type' => 'Link',
'mediaType' => 'text/html',
'href' => $p['xchan_url']
],
[
'type' => 'Link',
'mediaType' => 'text/x-zot+json',
'href' => $p['xchan_url']
]
];
$arr = [ 'xchan' => $p, 'encoded' => $ret ];
call_hooks('encode_person', $arr);
$ret = $arr['encoded'];
return $ret;
}
static function activity_mapper($verb) {
if(strpos($verb,'/') === false) {
return $verb;
}
$acts = [
'http://activitystrea.ms/schema/1.0/post' => 'Create',
'http://activitystrea.ms/schema/1.0/share' => 'Announce',
'http://activitystrea.ms/schema/1.0/update' => 'Update',
'http://activitystrea.ms/schema/1.0/like' => 'Like',
'http://activitystrea.ms/schema/1.0/favorite' => 'Like',
'http://purl.org/zot/activity/dislike' => 'Dislike',
'http://activitystrea.ms/schema/1.0/tag' => 'Add',
'http://activitystrea.ms/schema/1.0/follow' => 'Follow',
'http://activitystrea.ms/schema/1.0/unfollow' => 'Unfollow',
'http://purl.org/zot/activity/attendyes' => 'Accept',
'http://purl.org/zot/activity/attendno' => 'Reject',
'http://purl.org/zot/activity/attendmaybe' => 'TentativeAccept',
'Invite' => 'Invite',
];
call_hooks('activity_mapper',$acts);
if(array_key_exists($verb,$acts) && $acts[$verb]) {
return $acts[$verb];
}
// Reactions will just map to normal activities
if(strpos($verb,ACTIVITY_REACT) !== false)
return 'emojiReaction';
if(strpos($verb,ACTIVITY_MOOD) !== false)
return 'Create';
if(strpos($verb,ACTIVITY_FRIEND) !== false)
return 'Create';
if(strpos($verb,ACTIVITY_POKE) !== false)
return 'Activity';
// We should return false, however this will trigger an uncaught execption and crash
// the delivery system if encountered by the JSON-LDSignature library
logger('Unmapped activity: ' . $verb);
return 'Create';
// return false;
}
static function activity_decode_mapper($verb) {
$acts = [
'http://activitystrea.ms/schema/1.0/post' => 'Create',
'http://activitystrea.ms/schema/1.0/share' => 'Announce',
'http://activitystrea.ms/schema/1.0/update' => 'Update',
'http://activitystrea.ms/schema/1.0/like' => 'Like',
'http://activitystrea.ms/schema/1.0/favorite' => 'Like',
'http://purl.org/zot/activity/dislike' => 'Dislike',
'http://activitystrea.ms/schema/1.0/tag' => 'Add',
'http://activitystrea.ms/schema/1.0/follow' => 'Follow',
'http://activitystrea.ms/schema/1.0/unfollow' => 'Unfollow',
'http://purl.org/zot/activity/attendyes' => 'Accept',
'http://purl.org/zot/activity/attendno' => 'Reject',
'http://purl.org/zot/activity/attendmaybe' => 'TentativeAccept',
'Invite' => 'Invite',
];
call_hooks('activity_decode_mapper',$acts);
foreach($acts as $k => $v) {
if($verb === $v) {
return $k;
}
}
logger('Unmapped activity: ' . $verb);
return 'Create';
}
static function activity_obj_decode_mapper($obj) {
$objs = [
'http://activitystrea.ms/schema/1.0/note' => 'Note',
'http://activitystrea.ms/schema/1.0/note' => 'Article',
'http://activitystrea.ms/schema/1.0/comment' => 'Note',
'http://activitystrea.ms/schema/1.0/person' => 'Person',
'http://purl.org/zot/activity/profile' => 'Profile',
'http://activitystrea.ms/schema/1.0/photo' => 'Image',
'http://activitystrea.ms/schema/1.0/profile-photo' => 'Icon',
'http://activitystrea.ms/schema/1.0/event' => 'Event',
'http://activitystrea.ms/schema/1.0/wiki' => 'Document',
'http://purl.org/zot/activity/location' => 'Place',
'http://purl.org/zot/activity/chessgame' => 'Game',
'http://purl.org/zot/activity/tagterm' => 'zot:Tag',
'http://purl.org/zot/activity/thing' => 'Object',
'http://purl.org/zot/activity/file' => 'zot:File',
'http://purl.org/zot/activity/mood' => 'zot:Mood',
'Invite' => 'Invite',
'Question' => 'Question'
];
call_hooks('activity_obj_decode_mapper',$objs);
foreach($objs as $k => $v) {
if($obj === $v) {
return $k;
}
}
logger('Unmapped activity object: ' . $obj);
return 'Note';
}
static function activity_obj_mapper($obj) {
$objs = [
'http://activitystrea.ms/schema/1.0/note' => 'Note',
'http://activitystrea.ms/schema/1.0/comment' => 'Note',
'http://activitystrea.ms/schema/1.0/person' => 'Person',
'http://purl.org/zot/activity/profile' => 'Profile',
'http://activitystrea.ms/schema/1.0/photo' => 'Image',
'http://activitystrea.ms/schema/1.0/profile-photo' => 'Icon',
'http://activitystrea.ms/schema/1.0/event' => 'Event',
'http://activitystrea.ms/schema/1.0/wiki' => 'Document',
'http://purl.org/zot/activity/location' => 'Place',
'http://purl.org/zot/activity/chessgame' => 'Game',
'http://purl.org/zot/activity/tagterm' => 'zot:Tag',
'http://purl.org/zot/activity/thing' => 'Object',
'http://purl.org/zot/activity/file' => 'zot:File',
'http://purl.org/zot/activity/mood' => 'zot:Mood',
'Invite' => 'Invite',
'Question' => 'Question'
];
call_hooks('activity_obj_mapper',$objs);
if ($obj === 'Answer') {
return 'Note';
}
if (strpos($obj,'/') === false) {
return $obj;
}
if(array_key_exists($obj,$objs)) {
return $objs[$obj];
}
logger('Unmapped activity object: ' . $obj);
return 'Note';
// return false;
}
static function follow($channel,$act) {
$contact = null;
$their_follow_id = null;
/*
*
* if $act->type === 'Follow', actor is now following $channel
* if $act->type === 'Accept', actor has approved a follow request from $channel
*
*/
$person_obj = $act->actor;
if($act->type === 'Follow') {
$their_follow_id = $act->id;
}
elseif($act->type === 'Accept') {
$my_follow_id = z_root() . '/follow/' . $contact['id'];
}
if(is_array($person_obj)) {
// store their xchan and hubloc
self::actor_store($person_obj['id'],$person_obj);
// Find any existing abook record
$r = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_xchan = '%s' and abook_channel = %d limit 1",
dbesc($person_obj['id']),
intval($channel['channel_id'])
);
if($r) {
$contact = $r[0];
}
}
$x = \Zotlabs\Access\PermissionRoles::role_perms('social');
$p = \Zotlabs\Access\Permissions::FilledPerms($x['perms_connect']);
$their_perms = \Zotlabs\Access\Permissions::serialise($p);
if($contact && $contact['abook_id']) {
// A relationship of some form already exists on this site.
switch($act->type) {
case 'Follow':
// A second Follow request, but we haven't approved the first one
if($contact['abook_pending']) {
return;
}
// We've already approved them or followed them first
// Send an Accept back to them
set_abconfig($channel['channel_id'],$person_obj['id'],'pubcrawl','their_follow_id', $their_follow_id);
Master::Summon([ 'Notifier', 'permissions_accept', $contact['abook_id'] ]);
return;
case 'Accept':
// They accepted our Follow request - set default permissions
set_abconfig($channel['channel_id'],$contact['abook_xchan'],'system','their_perms',$their_perms);
$abook_instance = $contact['abook_instance'];
if(strpos($abook_instance,z_root()) === false) {
if($abook_instance)
$abook_instance .= ',';
$abook_instance .= z_root();
$r = q("update abook set abook_instance = '%s', abook_not_here = 0
where abook_id = %d and abook_channel = %d",
dbesc($abook_instance),
intval($contact['abook_id']),
intval($channel['channel_id'])
);
}
return;
default:
return;
}
}
// No previous relationship exists.
if($act->type === 'Accept') {
// This should not happen unless we deleted the connection before it was accepted.
return;
}
// From here on out we assume a Follow activity to somebody we have no existing relationship with
set_abconfig($channel['channel_id'],$person_obj['id'],'pubcrawl','their_follow_id', $their_follow_id);
// The xchan should have been created by actor_store() above
$r = q("select * from xchan where xchan_hash = '%s' and xchan_network = 'activitypub' limit 1",
dbesc($person_obj['id'])
);
if(! $r) {
logger('xchan not found for ' . $person_obj['id']);
return;
}
$ret = $r[0];
$p = \Zotlabs\Access\Permissions::connect_perms($channel['channel_id']);
$my_perms = \Zotlabs\Access\Permissions::serialise($p['perms']);
$automatic = $p['automatic'];
$closeness = get_pconfig($channel['channel_id'],'system','new_abook_closeness',80);
$r = abook_store_lowlevel(
[
'abook_account' => intval($channel['channel_account_id']),
'abook_channel' => intval($channel['channel_id']),
'abook_xchan' => $ret['xchan_hash'],
'abook_closeness' => intval($closeness),
'abook_created' => datetime_convert(),
'abook_updated' => datetime_convert(),
'abook_connected' => datetime_convert(),
'abook_dob' => NULL_DATE,
'abook_pending' => intval(($automatic) ? 0 : 1),
'abook_instance' => z_root()
]
);
if($my_perms)
set_abconfig($channel['channel_id'],$ret['xchan_hash'],'system','my_perms',$my_perms);
if($their_perms)
set_abconfig($channel['channel_id'],$ret['xchan_hash'],'system','their_perms',$their_perms);
if($r) {
logger("New ActivityPub follower for {$channel['channel_name']}");
$new_connection = q("select * from abook left join xchan on abook_xchan = xchan_hash left join hubloc on hubloc_hash = xchan_hash where abook_channel = %d and abook_xchan = '%s' order by abook_created desc limit 1",
intval($channel['channel_id']),
dbesc($ret['xchan_hash'])
);
if($new_connection) {
\Zotlabs\Lib\Enotify::submit(
[
'type' => NOTIFY_INTRO,
'from_xchan' => $ret['xchan_hash'],
'to_xchan' => $channel['channel_hash'],
'link' => z_root() . '/connedit/' . $new_connection[0]['abook_id'],
]
);
if($my_perms && $automatic) {
// send an Accept for this Follow activity
Master::Summon([ 'Notifier', 'permissions_accept', $new_connection[0]['abook_id'] ]);
// Send back a Follow notification to them
Master::Summon([ 'Notifier', 'permissions_create', $new_connection[0]['abook_id'] ]);
}
$clone = array();
foreach($new_connection[0] as $k => $v) {
if(strpos($k,'abook_') === 0) {
$clone[$k] = $v;
}
}
unset($clone['abook_id']);
unset($clone['abook_account']);
unset($clone['abook_channel']);
$abconfig = load_abconfig($channel['channel_id'],$clone['abook_xchan']);
if($abconfig)
$clone['abconfig'] = $abconfig;
Libsync::build_sync_packet($channel['channel_id'], [ 'abook' => array($clone) ] );
}
}
/* If there is a default group for this channel and permissions are automatic, add this member to it */
if($channel['channel_default_group'] && $automatic) {
$g = Group::rec_byhash($channel['channel_id'],$channel['channel_default_group']);
if($g)
Group::member_add($channel['channel_id'],'',$ret['xchan_hash'],$g['id']);
}
return;
}
static function unfollow($channel,$act) {
$contact = null;
/* @FIXME This really needs to be a signed request. */
/* actor is unfollowing $channel */
$person_obj = $act->actor;
if(is_array($person_obj)) {
$r = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_xchan = '%s' and abook_channel = %d limit 1",
dbesc($person_obj['id']),
intval($channel['channel_id'])
);
if($r) {
// remove all permissions they provided
del_abconfig($channel['channel_id'],$r[0]['xchan_hash'],'system','their_perms',EMPTY_STR);
}
}
return;
}
static function actor_store($url,$person_obj) {
if(! is_array($person_obj))
return;
$name = $person_obj['name'];
if(! $name)
$name = $person_obj['preferredUsername'];
if(! $name)
$name = t('Unknown');
if($person_obj['icon']) {
if(is_array($person_obj['icon'])) {
if(array_key_exists('url',$person_obj['icon']))
$icon = $person_obj['icon']['url'];
else
$icon = $person_obj['icon'][0]['url'];
}
else
$icon = $person_obj['icon'];
}
if(is_array($person_obj['url']) && array_key_exists('href', $person_obj['url']))
$profile = $person_obj['url']['href'];
else
$profile = $url;
$inbox = $person_obj['inbox'];
$collections = [];
if($inbox) {
$collections['inbox'] = $inbox;
if($person_obj['outbox'])
$collections['outbox'] = $person_obj['outbox'];
if($person_obj['followers'])
$collections['followers'] = $person_obj['followers'];
if($person_obj['following'])
$collections['following'] = $person_obj['following'];
if($person_obj['endpoints'] && $person_obj['endpoints']['sharedInbox'])
$collections['sharedInbox'] = $person_obj['endpoints']['sharedInbox'];
}
if(array_key_exists('publicKey',$person_obj) && array_key_exists('publicKeyPem',$person_obj['publicKey'])) {
if($person_obj['id'] === $person_obj['publicKey']['owner']) {
$pubkey = $person_obj['publicKey']['publicKeyPem'];
if(strstr($pubkey,'RSA ')) {
$pubkey = rsatopem($pubkey);
}
}
}
$r = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($url)
);
if(! $r) {
// create a new record
$r = xchan_store_lowlevel(
[
'xchan_hash' => $url,
'xchan_guid' => $url,
'xchan_pubkey' => $pubkey,
'xchan_addr' => '',
'xchan_url' => $profile,
'xchan_name' => $name,
'xchan_name_date' => datetime_convert(),
'xchan_network' => 'activitypub'
]
);
}
else {
// Record exists. Cache existing records for one week at most
// then refetch to catch updated profile photos, names, etc.
$d = datetime_convert('UTC','UTC','now - 1 week');
if($r[0]['xchan_name_date'] > $d)
return;
// update existing record
$r = q("update xchan set xchan_name = '%s', xchan_pubkey = '%s', xchan_network = '%s', xchan_name_date = '%s' where xchan_hash = '%s'",
dbesc($name),
dbesc($pubkey),
dbesc('activitypub'),
dbesc(datetime_convert()),
dbesc($url)
);
}
if($collections) {
set_xconfig($url,'activitypub','collections',$collections);
}
$r = q("select * from hubloc where hubloc_hash = '%s' limit 1",
dbesc($url)
);
$m = parse_url($url);
if($m) {
$hostname = $m['host'];
$baseurl = $m['scheme'] . '://' . $m['host'] . (($m['port']) ? ':' . $m['port'] : '');
}
if(! $r) {
$r = hubloc_store_lowlevel(
[
'hubloc_guid' => $url,
'hubloc_hash' => $url,
'hubloc_addr' => '',
'hubloc_network' => 'activitypub',
'hubloc_url' => $baseurl,
'hubloc_host' => $hostname,
'hubloc_callback' => $inbox,
'hubloc_updated' => datetime_convert(),
'hubloc_primary' => 1
]
);
}
if(! $icon)
$icon = z_root() . '/' . get_default_profile_photo(300);
$photos = import_xchan_photo($icon,$url);
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'",
dbescdate(datetime_convert('UTC','UTC',$photos[5])),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($url)
);
}
static function create_action($channel,$observer_hash,$act) {
if(in_array($act->obj['type'], [ 'Note', 'Article', 'Video' ])) {
self::create_note($channel,$observer_hash,$act);
}
}
static function announce_action($channel,$observer_hash,$act) {
if(in_array($act->type, [ 'Announce' ])) {
self::announce_note($channel,$observer_hash,$act);
}
}
static function like_action($channel,$observer_hash,$act) {
if(in_array($act->obj['type'], [ 'Note', 'Article', 'Video' ])) {
self::like_note($channel,$observer_hash,$act);
}
}
// sort function width decreasing
static function as_vid_sort($a,$b) {
if($a['width'] === $b['width'])
return 0;
return (($a['width'] > $b['width']) ? -1 : 1);
}
static function create_note($channel,$observer_hash,$act) {
$s = [];
// Mastodon only allows visibility in public timelines if the public inbox is listed in the 'to' field.
// They are hidden in the public timeline if the public inbox is listed in the 'cc' field.
// This is not part of the activitypub protocol - we might change this to show all public posts in pubstream at some point.
$pubstream = ((is_array($act->obj) && array_key_exists('to', $act->obj) && in_array(ACTIVITY_PUBLIC_INBOX, $act->obj['to'])) ? true : false);
$is_sys_channel = is_sys_channel($channel['channel_id']);
$parent = ((array_key_exists('inReplyTo',$act->obj)) ? urldecode($act->obj['inReplyTo']) : '');
if($parent) {
$r = q("select * from item where uid = %d and ( mid = '%s' or mid = '%s' ) limit 1",
intval($channel['channel_id']),
dbesc($parent),
dbesc(basename($parent))
);
if(! $r) {
logger('parent not found.');
return;
}
if($r[0]['owner_xchan'] === $channel['channel_hash']) {
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'send_stream') && ! ($is_sys_channel && $pubstream)) {
logger('no comment permission.');
return;
}
}
$s['parent_mid'] = $r[0]['mid'];
$s['owner_xchan'] = $r[0]['owner_xchan'];
$s['author_xchan'] = $observer_hash;
}
else {
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'send_stream') && ! ($is_sys_channel && $pubstream)) {
logger('no permission');
return;
}
$s['owner_xchan'] = $s['author_xchan'] = $observer_hash;
}
$abook = q("select * from abook where abook_xchan = '%s' and abook_channel = %d limit 1",
dbesc($observer_hash),
intval($channel['channel_id'])
);
$content = self::get_content($act->obj);
if(! $content) {
logger('no content');
return;
}
$s['aid'] = $channel['channel_account_id'];
$s['uid'] = $channel['channel_id'];
$s['mid'] = urldecode($act->obj['id']);
$s['plink'] = urldecode($act->obj['id']);
if($act->data['published']) {
$s['created'] = datetime_convert('UTC','UTC',$act->data['published']);
}
elseif($act->obj['published']) {
$s['created'] = datetime_convert('UTC','UTC',$act->obj['published']);
}
if($act->data['updated']) {
$s['edited'] = datetime_convert('UTC','UTC',$act->data['updated']);
}
elseif($act->obj['updated']) {
$s['edited'] = datetime_convert('UTC','UTC',$act->obj['updated']);
}
if ($act->data['expires']) {
$s['expires'] = datetime_convert('UTC','UTC',$act->data['expires']);
}
elseif ($act->obj['expires']) {
$s['expires'] = datetime_convert('UTC','UTC',$act->obj['expires']);
}
if(! $s['created'])
$s['created'] = datetime_convert();
if(! $s['edited'])
$s['edited'] = $s['created'];
if(! $s['parent_mid'])
$s['parent_mid'] = $s['mid'];
$s['title'] = self::bb_content($content,'name');
$s['summary'] = self::bb_content($content,'summary');
$s['body'] = self::bb_content($content,'content');
$s['verb'] = ACTIVITY_POST;
$s['obj_type'] = ACTIVITY_OBJ_NOTE;
$generator = $act->get_property_obj('generator');
if(! $generator)
$generator = $act->get_property_obj('generator',$act->obj);
if($generator && array_key_exists('type',$generator)
&& in_array($generator['type'], [ 'Application','Service' ] ) && array_key_exists('name',$generator)) {
$s['app'] = escape_tags($generator['name']);
}
if($channel['channel_system']) {
if(! \Zotlabs\Lib\MessageFilter::evaluate($s,get_config('system','pubstream_incl'),get_config('system','pubstream_excl'))) {
logger('post is filtered');
return;
}
}
if($abook) {
if(! post_is_importable($s,$abook[0])) {
logger('post is filtered');
return;
}
}
if($act->obj['conversation']) {
set_iconfig($s,'ostatus','conversation',$act->obj['conversation'],1);
}
$a = self::decode_taxonomy($act->obj);
if($a) {
$s['term'] = $a;
}
$a = self::decode_attachment($act->obj);
if($a) {
$s['attach'] = $a;
}
if($act->obj['type'] === 'Note' && $s['attach']) {
$s['body'] .= self::bb_attach($s['attach'],$s['body']);
}
// we will need a hook here to extract magnet links e.g. peertube
// right now just link to the largest mp4 we find that will fit in our
// standard content region
if($act->obj['type'] === 'Video') {
$vtypes = [
'video/mp4',
'video/ogg',
'video/webm'
];
$mps = [];
if(array_key_exists('url',$act->obj) && is_array($act->obj['url'])) {
foreach($act->obj['url'] as $vurl) {
if(in_array($vurl['mimeType'], $vtypes)) {
if(! array_key_exists('width',$vurl)) {
$vurl['width'] = 0;
}
$mps[] = $vurl;
}
}
}
if($mps) {
usort($mps,'as_vid_sort');
foreach($mps as $m) {
if(intval($m['width']) < 500) {
$s['body'] .= "\n\n" . '[video]' . $m['href'] . '[/video]';
break;
}
}
}
}
if($act->recips && (! in_array(ACTIVITY_PUBLIC_INBOX,$act->recips)))
$s['item_private'] = 1;
if (array_key_exists('directMessage',$act->obj) && intval($act->obj['directMessage'])) {
$s['item_private'] = 2;
}
set_iconfig($s,'activitypub','recips',$act->raw_recips);
if($parent) {
set_iconfig($s,'activitypub','rawmsg',$act->raw,1);
}
$x = null;
$r = q("select created, edited from item where mid = '%s' and uid = %d limit 1",
dbesc($s['mid']),
intval($s['uid'])
);
if($r) {
if($s['edited'] > $r[0]['edited']) {
$x = item_store_update($s);
}
else {
return;
}
}
else {
$x = item_store($s);
}
if(is_array($x) && $x['item_id']) {
if($parent) {
if($s['owner_xchan'] === $channel['channel_hash']) {
// We are the owner of this conversation, so send all received comments back downstream
Master::Summon(array('Notifier','comment-import',$x['item_id']));
}
$r = q("select * from item where id = %d limit 1",
intval($x['item_id'])
);
if($r) {
send_status_notifications($x['item_id'],$r[0]);
}
}
sync_an_item($channel['channel_id'],$x['item_id']);
}
}
static function get_actor_bbmention($id) {
$x = q("select * from hubloc left join xchan on hubloc_hash = xchan_hash where hubloc_hash = '%s' or hubloc_id_url = '%s' limit 1",
dbesc($id),
dbesc($id)
);
if($x) {
return sprintf('@[zrl=%s]%s[/zrl]',$x[0]['xchan_url'],$x[0]['xchan_name']);
}
return '@{' . $id . '}';
}
static function update_poll($item,$post) {
$multi = false;
$mid = $post['mid'];
$content = $post['title'];
if (! $item) {
return false;
}
$o = json_decode($item['obj'],true);
if ($o && array_key_exists('anyOf',$o)) {
$multi = true;
}
$r = q("select mid, title from item where parent_mid = '%s' and author_xchan = '%s'",
dbesc($item['mid']),
dbesc($post['author_xchan'])
);
// prevent any duplicate votes by same author for oneOf and duplicate votes with same author and same answer for anyOf
if ($r) {
if ($multi) {
foreach ($r as $rv) {
if ($rv['title'] === $content && $rv['mid'] !== $mid) {
return false;
}
}
}
else {
foreach ($r as $rv) {
if ($rv['mid'] !== $mid) {
return false;
}
}
}
}
$answer_found = false;
$found = false;
if ($multi) {
for ($c = 0; $c < count($o['anyOf']); $c ++) {
if ($o['anyOf'][$c]['name'] === $content) {
$answer_found = true;
if (is_array($o['anyOf'][$c]['replies'])) {
foreach($o['anyOf'][$c]['replies'] as $reply) {
if(is_array($reply) && array_key_exists('id',$reply) && $reply['id'] === $mid) {
$found = true;
}
}
}
if (! $found) {
$o['anyOf'][$c]['replies']['totalItems'] ++;
$o['anyOf'][$c]['replies']['items'][] = [ 'id' => $mid, 'type' => 'Note' ];
}
}
}
}
else {
for ($c = 0; $c < count($o['oneOf']); $c ++) {
if ($o['oneOf'][$c]['name'] === $content) {
$answer_found = true;
if (is_array($o['oneOf'][$c]['replies'])) {
foreach($o['oneOf'][$c]['replies'] as $reply) {
if(is_array($reply) && array_key_exists('id',$reply) && $reply['id'] === $mid) {
$found = true;
}
}
}
if (! $found) {
$o['oneOf'][$c]['replies']['totalItems'] ++;
$o['oneOf'][$c]['replies']['items'][] = [ 'id' => $mid, 'type' => 'Note' ];
}
}
}
}
logger('updated_poll: ' . print_r($o,true),LOGGER_DATA);
if ($answer_found && ! $found) {
$x = q("update item set obj = '%s', edited = '%s' where id = %d",
dbesc(json_encode($o)),
dbesc(datetime_convert()),
intval($item['id'])
);
Master::Summon( [ 'Notifier', 'wall-new', $item['id'] ] );
return true;
}
return false;
}
static function decode_note($act) {
$response_activity = false;
$s = [];
if(is_array($act->obj)) {
$content = self::get_content($act->obj);
}
$s['owner_xchan'] = $act->actor['id'];
$s['author_xchan'] = $act->actor['id'];
// ensure we store the original actor
self::actor_store($act->actor['id'],$act->actor);
$s['mid'] = $act->obj['id'];
$s['parent_mid'] = $act->parent_id;
if($act->data['published']) {
$s['created'] = datetime_convert('UTC','UTC',$act->data['published']);
}
elseif($act->obj['published']) {
$s['created'] = datetime_convert('UTC','UTC',$act->obj['published']);
}
if($act->data['updated']) {
$s['edited'] = datetime_convert('UTC','UTC',$act->data['updated']);
}
elseif($act->obj['updated']) {
$s['edited'] = datetime_convert('UTC','UTC',$act->obj['updated']);
}
if ($act->data['expires']) {
$s['expires'] = datetime_convert('UTC','UTC',$act->data['expires']);
}
elseif ($act->obj['expires']) {
$s['expires'] = datetime_convert('UTC','UTC',$act->obj['expires']);
}
if(in_array($act->type, [ 'Like', 'Dislike', 'Flag', 'Block', 'Announce', 'Accept', 'Reject', 'TentativeAccept', 'emojiReaction' ])) {
$response_activity = true;
$s['mid'] = $act->id;
$s['parent_mid'] = $act->obj['id'];
// over-ride the object timestamp with the activity
if($act->data['published']) {
$s['created'] = datetime_convert('UTC','UTC',$act->data['published']);
}
if($act->data['updated']) {
$s['edited'] = datetime_convert('UTC','UTC',$act->data['updated']);
}
$obj_actor = ((isset($act->obj['actor'])) ? $act->obj['actor'] : $act->get_actor('attributedTo', $act->obj));
// ensure we store the original actor
self::actor_store($obj_actor['id'],$obj_actor);
$mention = self::get_actor_bbmention($obj_actor['id']);
if($act->type === 'Like') {
$content['content'] = sprintf( t('Likes %1$s\'s %2$s'),$mention,$act->obj['type']) . "\n\n" . $content['content'];
}
if($act->type === 'Dislike') {
$content['content'] = sprintf( t('Doesn\'t like %1$s\'s %2$s'),$mention,$act->obj['type']) . "\n\n" . $content['content'];
}
// handle event RSVPs
if (($act->obj['type'] === 'Event') || ($act->obj['type'] === 'Invite' && array_path_exists('object/type',$act->obj) && $act->obj['object']['type'] === 'Event')) {
if ($act->type === 'Accept') {
$content['content'] = sprintf( t('Will attend %s\'s event'),$mention) . EOL . EOL . $content['content'];
}
if ($act->type === 'Reject') {
$content['content'] = sprintf( t('Will not attend %s\'s event'),$mention) . EOL . EOL . $content['content'];
}
if ($act->type === 'TentativeAccept') {
$content['content'] = sprintf( t('May attend %s\'s event'),$mention) . EOL . EOL . $content['content'];
}
if ($act->type === 'TentativeReject') {
$content['content'] = sprintf( t('May not attend %s\'s event'),$mention) . EOL . EOL . $content['content'];
}
}
if($act->type === 'Announce') {
$content['content'] = sprintf( t('🔁 Repeated %1$s\'s %2$s'), $mention, $act->obj['type']);
}
if ($act->type === 'emojiReaction') {
$content['content'] = (($act->tgt && $act->tgt['type'] === 'Image') ? '[img=32x32]' . $act->tgt['url'] . '[/img]' : '&#x' . $act->tgt['name'] . ';');
}
}
if(! $s['created'])
$s['created'] = datetime_convert();
if(! $s['edited'])
$s['edited'] = $s['created'];
$s['title'] = self::bb_content($content,'name');
$s['summary'] = self::bb_content($content,'summary');
$s['body'] = ((self::bb_content($content,'bbcode') && (! $response_activity)) ? self::bb_content($content,'bbcode') : self::bb_content($content,'content'));
$s['verb'] = self::activity_decode_mapper($act->type);
// Mastodon does not provide update timestamps when updating poll tallies which means race conditions may occur here.
if ($act->type === 'Update' && $act->obj['type'] === 'Question' && $s['edited'] === $s['created']) {
$s['edited'] = datetime_convert();
}
if($act->type === 'Tombstone' || $act->type === 'Delete' || ($act->type === 'Create' && $act->obj['type'] === 'Tombstone')) {
$s['item_deleted'] = 1;
}
$s['obj_type'] = self::activity_obj_decode_mapper($act->obj['type']);
if($s['obj_type'] === ACTIVITY_OBJ_NOTE && $s['mid'] !== $s['parent_mid']) {
$s['obj_type'] = ACTIVITY_OBJ_COMMENT;
}
$eventptr = null;
if ($act->obj['type'] === 'Invite' && array_path_exists('object/type',$act->obj) && $act->obj['object']['type'] === 'Event') {
$eventptr = $act->obj['object'];
$s['mid'] = $s['parent_mid'] = $act->obj['id'];
}
if($act->obj['type'] === 'Event') {
if ($act->type === 'Invite') {
$s['mid'] = $s['parent_mid'] = $act->id;
}
$eventptr = $act->obj;
}
if ($eventptr) {
$s['obj'] = [];
$s['obj']['asld'] = $eventptr;
$s['obj']['type'] = ACTIVITY_OBJ_EVENT;
$s['obj']['id'] = $eventptr['id'];
$s['obj']['title'] = $eventptr['name'];
if(strpos($act->obj['startTime'],'Z'))
$s['obj']['adjust'] = true;
else
$s['obj']['adjust'] = false;
$s['obj']['dtstart'] = datetime_convert('UTC','UTC',$eventptr['startTime']);
if($act->obj['endTime'])
$s['obj']['dtend'] = datetime_convert('UTC','UTC',$eventptr['endTime']);
else
$s['obj']['nofinish'] = true;
$s['obj']['description'] = $eventptr['content'];
if(array_path_exists('location/content',$eventptr))
$s['obj']['location'] = $eventptr['location']['content'];
}
else {
$s['obj'] = $act->obj;
}
$generator = $act->get_property_obj('generator');
if((! $generator) && (! $response_activity)) {
$generator = $act->get_property_obj('generator',$act->obj);
}
if($generator && array_key_exists('type',$generator)
&& in_array($generator['type'], [ 'Application', 'Service' ] ) && array_key_exists('name',$generator)) {
$s['app'] = escape_tags($generator['name']);
}
if(! $response_activity) {
$a = self::decode_taxonomy($act->obj);
if($a) {
$s['term'] = $a;
foreach($a as $b) {
if($b['ttype'] === TERM_EMOJI) {
$s['title'] = str_replace($b['term'],'[img=16x16]' . $b['url'] . '[/img]',$s['title']);
$s['summary'] = str_replace($b['term'],'[img=16x16]' . $b['url'] . '[/img]',$s['summary']);
$s['body'] = str_replace($b['term'],'[img=16x16]' . $b['url'] . '[/img]',$s['body']);
}
}
}
}
$a = self::decode_attachment($act->obj);
if ($a) {
$s['attach'] = $a;
}
$a = self::decode_iconfig($act->obj);
if ($a) {
$s['iconfig'] = $a;
}
if($act->obj['type'] === 'Note' && $s['attach']) {
$s['body'] .= self::bb_attach($s['attach'],$s['body']);
}
if ($act->obj['type'] === 'Question' && in_array($act->type,['Create','Update'])) {
if ($act->obj['endTime']) {
$s['comments_closed'] = datetime_convert('UTC','UTC', $act->obj['endTime']);
}
}
if ($act->obj['closed']) {
$s['comments_closed'] = datetime_convert('UTC','UTC', $act->obj['closed']);
}
// we will need a hook here to extract magnet links e.g. peertube
// right now just link to the largest mp4 we find that will fit in our
// standard content region
if(! $response_activity) {
if($act->obj['type'] === 'Video') {
$vtypes = [
'video/mp4',
'video/ogg',
'video/webm'
];
$mps = [];
$ptr = null;
if(array_key_exists('url',$act->obj)) {
if(is_array($act->obj['url'])) {
if(array_key_exists(0,$act->obj['url'])) {
$ptr = $act->obj['url'];
}
else {
$ptr = [ $act->obj['url'] ];
}
foreach($ptr as $vurl) {
// peertube uses the non-standard element name 'mimeType' here
if(array_key_exists('mimeType',$vurl)) {
if(in_array($vurl['mimeType'], $vtypes)) {
if(! array_key_exists('width',$vurl)) {
$vurl['width'] = 0;
}
$mps[] = $vurl;
}
}
elseif(array_key_exists('mediaType',$vurl)) {
if(in_array($vurl['mediaType'], $vtypes)) {
if(! array_key_exists('width',$vurl)) {
$vurl['width'] = 0;
}
$mps[] = $vurl;
}
}
}
}
if($mps) {
usort($mps,[ __CLASS__, 'vid_sort' ]);
foreach($mps as $m) {
if(intval($m['width']) < 500 && self::media_not_in_body($m['href'],$s['body'])) {
$s['body'] .= "\n\n" . '[video]' . $m['href'] . '[/video]';
break;
}
}
}
elseif(is_string($act->obj['url']) && self::media_not_in_body($act->obj['url'],$s['body'])) {
$s['body'] .= "\n\n" . '[video]' . $act->obj['url'] . '[/video]';
}
}
}
if($act->obj['type'] === 'Audio') {
$atypes = [
'audio/mpeg',
'audio/ogg',
'audio/wav'
];
$ptr = null;
if(array_key_exists('url',$act->obj)) {
if(is_array($act->obj['url'])) {
if(array_key_exists(0,$act->obj['url'])) {
$ptr = $act->obj['url'];
}
else {
$ptr = [ $act->obj['url'] ];
}
foreach($ptr as $vurl) {
if(in_array($vurl['mediaType'], $atypes) && self::media_not_in_body($vurl['href'],$s['body'])) {
$s['body'] .= "\n\n" . '[audio]' . $vurl['href'] . '[/audio]';
break;
}
}
}
elseif(is_string($act->obj['url']) && self::media_not_in_body($act->obj['url'],$s['body'])) {
$s['body'] .= "\n\n" . '[audio]' . $act->obj['url'] . '[/audio]';
}
}
}
// avoid double images from hubzilla to zap/osada
if($act->obj['type'] === 'Image' && strpos($s['body'],'zrl=') === false) {
$ptr = null;
if(array_key_exists('url',$act->obj)) {
if(is_array($act->obj['url'])) {
if(array_key_exists(0,$act->obj['url'])) {
$ptr = $act->obj['url'];
}
else {
$ptr = [ $act->obj['url'] ];
}
foreach($ptr as $vurl) {
if(strpos($s['body'],$vurl['href']) === false) {
$s['body'] .= '[zmg]' . $vurl['href'] . '[/zmg]' . "\n\n" . $s['body'];
break;
}
}
}
elseif(is_string($act->obj['url'])) {
if(strpos($s['body'],$act->obj['url']) === false) {
$s['body'] .= '[zmg]' . $act->obj['url'] . '[/zmg]' . "\n\n" . $s['body'];
}
}
}
}
if($act->obj['type'] === 'Page' && ! $s['body']) {
$ptr = null;
$purl = EMPTY_STR;
if(array_key_exists('url',$act->obj)) {
if(is_array($act->obj['url'])) {
if(array_key_exists(0,$act->obj['url'])) {
$ptr = $act->obj['url'];
}
else {
$ptr = [ $act->obj['url'] ];
}
foreach($ptr as $vurl) {
if(array_key_exists('mediaType',$vurl) && $vurl['mediaType'] === 'text/html') {
$purl = $vurl['href'];
break;
}
elseif(array_key_exists('mimeType',$vurl) && $vurl['mimeType'] === 'text/html') {
$purl = $vurl['href'];
break;
}
}
}
elseif(is_string($act->obj['url'])) {
$purl = $act->obj['url'];
}
if($purl) {
$li = z_fetch_url(z_root() . '/linkinfo?binurl=' . bin2hex($purl));
if($li['success'] && $li['body']) {
$s['body'] .= "\n" . $li['body'];
}
else {
$s['body'] .= "\n\n" . $purl;
}
}
}
}
}
if(in_array($act->obj['type'],[ 'Note','Article','Page' ])) {
$ptr = null;
if(array_key_exists('url',$act->obj)) {
if(is_array($act->obj['url'])) {
if(array_key_exists(0,$act->obj['url'])) {
$ptr = $act->obj['url'];
}
else {
$ptr = [ $act->obj['url'] ];
}
foreach($ptr as $vurl) {
if(array_key_exists('mediaType',$vurl) && $vurl['mediaType'] === 'text/html') {
$s['plink'] = $vurl['href'];
break;
}
}
}
elseif(is_string($act->obj['url'])) {
$s['plink'] = $act->obj['url'];
}
}
}
if(! $s['plink']) {
$s['plink'] = $s['mid'];
}
if ($act->recips && (! in_array(ACTIVITY_PUBLIC_INBOX,$act->recips)))
$s['item_private'] = 1;
if (is_array($act->obj)) {
if (array_key_exists('directMessage',$act->obj) && intval($act->obj['directMessage'])) {
$s['item_private'] = 2;
}
}
set_iconfig($s,'activitypub','recips',$act->raw_recips);
$parent = (($s['parent_mid'] && $s['parent_mid'] === $s['mid']) ? true : false);
if($parent) {
set_iconfig($s,'activitypub','rawmsg',$act->raw,1);
}
$hookinfo = [
'act' => $act,
's' => $s
];
call_hooks('decode_note',$hookinfo);
$s = $hookinfo['s'];
return $s;
}
static function store($channel,$observer_hash,$act,$item,$fetch_parents = true) {
$is_sys_channel = is_sys_channel($channel['channel_id']);
// Mastodon only allows visibility in public timelines if the public inbox is listed in the 'to' field.
// They are hidden in the public timeline if the public inbox is listed in the 'cc' field.
// This is not part of the activitypub protocol - we might change this to show all public posts in pubstream at some point.
$pubstream = ((is_array($act->obj) && array_key_exists('to', $act->obj) && in_array(ACTIVITY_PUBLIC_INBOX, $act->obj['to'])) ? true : false);
$is_parent = (($item['parent_mid'] && $item['parent_mid'] === $item['mid']) ? true : false);
if($is_parent && (! perm_is_allowed($channel['channel_id'],$observer_hash,'send_stream') && ! ($is_sys_channel && $pubstream))) {
logger('no permission');
return;
}
if(is_array($act->obj)) {
$content = self::get_content($act->obj);
}
if(! $content) {
logger('no content');
return;
}
$item['aid'] = $channel['channel_account_id'];
$item['uid'] = $channel['channel_id'];
$s['uuid'] = '';
// Friendica sends the diaspora guid in a nonstandard field via AP
if($act->obj['diaspora:guid'])
$s['uuid'] = $act->obj['diaspora:guid'];
if(! ( $item['author_xchan'] && $item['owner_xchan'])) {
logger('owner or author missing.');
return;
}
if($channel['channel_system']) {
if(! MessageFilter::evaluate($item,get_config('system','pubstream_incl'),get_config('system','pubstream_excl'))) {
logger('post is filtered');
return;
}
}
$abook = q("select * from abook where abook_xchan = '%s' and abook_channel = %d limit 1",
dbesc($observer_hash),
intval($channel['channel_id'])
);
if($abook) {
if(! post_is_importable($item,$abook[0])) {
logger('post is filtered');
return;
}
}
if($act->obj['conversation']) {
set_iconfig($item,'ostatus','conversation',$act->obj['conversation'],1);
}
// This isn't perfect but the best we can do for now.
$item['comment_policy'] = 'authenticated';
set_iconfig($item,'activitypub','recips',$act->raw_recips);
if(! $is_parent) {
$p = q("select parent_mid, id, obj_type from item where mid = '%s' and uid = %d limit 1",
dbesc($item['parent_mid']),
intval($item['uid'])
);
if(! $p) {
$a = (($fetch_parents) ? self::fetch_and_store_parents($channel,$act,$item) : false);
if($a) {
$p = q("select parent_mid from item where mid = '%s' and uid = %d limit 1",
dbesc($item['parent_mid']),
intval($item['uid'])
);
}
else {
logger('could not fetch parents');
return;
// @TODO we maybe could accept these is we formatted the body correctly with share_bb()
// or at least provided a link to the object
// if(in_array($act->type,[ 'Like','Dislike' ])) {
// return;
// }
// @TODO do we actually want that?
// if no parent was fetched, turn into a top-level post
// turn into a top level post
// $s['parent_mid'] = $s['mid'];
// $s['thr_parent'] = $s['mid'];
}
}
if ($p[0]['obj_type'] === 'Question') {
if ($item['obj_type'] === ACTIVITY_OBJ_NOTE && $item['title'] && (! $item['content'])) {
$item['obj_type'] = 'Answer';
}
}
if($p[0]['parent_mid'] !== $item['parent_mid']) {
$item['thr_parent'] = $item['parent_mid'];
}
else {
$item['thr_parent'] = $p[0]['parent_mid'];
}
$item['parent_mid'] = $p[0]['parent_mid'];
}
$r = q("select id, created, edited from item where mid = '%s' and uid = %d limit 1",
dbesc($item['mid']),
intval($item['uid'])
);
if($r) {
if($item['edited'] > $r[0]['edited']) {
$item['id'] = $r[0]['id'];
$x = item_store_update($item);
}
else {
return;
}
}
else {
$x = item_store($item);
}
if(is_array($x) && $x['item_id']) {
if($is_parent) {
if($item['owner_xchan'] === $channel['channel_hash']) {
// We are the owner of this conversation, so send all received comments back downstream
Master::Summon(array('Notifier','comment-import',$x['item_id']));
}
$r = q("select * from item where id = %d limit 1",
intval($x['item_id'])
);
if($r) {
send_status_notifications($x['item_id'],$r[0]);
}
}
sync_an_item($channel['channel_id'],$x['item_id']);
}
}
static public function fetch_and_store_parents($channel,$act,$item) {
logger('fetching parents');
$p = [];
$current_act = $act;
$current_item = $item;
while($current_item['parent_mid'] !== $current_item['mid']) {
$n = ActivityStreams::fetch($current_item['parent_mid'], $channel);
if(! $n) {
break;
}
$a = new ActivityStreams($n);
//logger($a->debug());
if(! $a->is_valid()) {
break;
}
$replies = null;
if(isset($a->obj['replies']['first']['items'])) {
$replies = $a->obj['replies']['first']['items'];
// we already have this one
array_diff($replies, [$current_item['mid']]);
}
$item = null;
switch($a->type) {
case 'Create':
case 'Update':
case 'Like':
case 'Dislike':
case 'Announce':
$item = self::decode_note($a);
break;
default:
break;
}
$hookinfo = [
'a' => $a,
'item' => $item
];
call_hooks('fetch_and_store',$hookinfo);
$item = $hookinfo['item'];
if($item) {
array_unshift($p,[ $a, $item, $replies]);
if($item['parent_mid'] === $item['mid'] || count($p) > 20) {
break;
}
}
$current_act = $a;
$current_item = $item;
}
if($p) {
foreach($p as $pv) {
self::store($channel,$pv[0]->actor['id'],$pv[0],$pv[1],false);
if($pv[2])
self::fetch_and_store_replies($channel, $pv[2]);
}
return true;
}
return false;
}
static public function fetch_and_store_replies($channel, $arr) {
logger('fetching replies');
$p = [];
foreach($arr as $url) {
$n = ActivityStreams::fetch($url, $channel);
if(! $n) {
break;
}
$a = new ActivityStreams($n);
if(! $a->is_valid()) {
break;
}
$item = null;
switch($a->type) {
case 'Create':
case 'Update':
case 'Like':
case 'Dislike':
case 'Announce':
$item = self::decode_note($a);
break;
default:
break;
}
$hookinfo = [
'a' => $a,
'item' => $item
];
call_hooks('fetch_and_store',$hookinfo);
$item = $hookinfo['item'];
if($item) {
array_unshift($p,[ $a, $item ]);
}
}
if($p) {
foreach($p as $pv) {
self::store($channel,$pv[0]->actor['id'],$pv[0],$pv[1],false);
}
}
}
static function announce_note($channel,$observer_hash,$act) {
$s = [];
$is_sys_channel = is_sys_channel($channel['channel_id']);
// Mastodon only allows visibility in public timelines if the public inbox is listed in the 'to' field.
// They are hidden in the public timeline if the public inbox is listed in the 'cc' field.
// This is not part of the activitypub protocol - we might change this to show all public posts in pubstream at some point.
$pubstream = ((is_array($act->obj) && array_key_exists('to', $act->obj) && in_array(ACTIVITY_PUBLIC_INBOX, $act->obj['to'])) ? true : false);
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'send_stream') && ! ($is_sys_channel && $pubstream)) {
logger('no permission');
return;
}
$content = self::get_content($act->obj);
if(! $content) {
logger('no content');
return;
}
$s['owner_xchan'] = $s['author_xchan'] = $observer_hash;
$s['aid'] = $channel['channel_account_id'];
$s['uid'] = $channel['channel_id'];
$s['mid'] = urldecode($act->obj['id']);
$s['plink'] = urldecode($act->obj['id']);
if(! $s['created'])
$s['created'] = datetime_convert();
if(! $s['edited'])
$s['edited'] = $s['created'];
$s['parent_mid'] = $s['mid'];
$s['verb'] = ACTIVITY_POST;
$s['obj_type'] = ACTIVITY_OBJ_NOTE;
$s['app'] = t('ActivityPub');
if($channel['channel_system']) {
if(! \Zotlabs\Lib\MessageFilter::evaluate($s,get_config('system','pubstream_incl'),get_config('system','pubstream_excl'))) {
logger('post is filtered');
return;
}
}
$abook = q("select * from abook where abook_xchan = '%s' and abook_channel = %d limit 1",
dbesc($observer_hash),
intval($channel['channel_id'])
);
if($abook) {
if(! post_is_importable($s,$abook[0])) {
logger('post is filtered');
return;
}
}
if($act->obj['conversation']) {
set_iconfig($s,'ostatus','conversation',$act->obj['conversation'],1);
}
$a = self::decode_taxonomy($act->obj);
if($a) {
$s['term'] = $a;
}
$a = self::decode_attachment($act->obj);
if($a) {
$s['attach'] = $a;
}
$body = "[share author='" . urlencode($act->sharee['name']) .
"' profile='" . $act->sharee['url'] .
"' avatar='" . $act->sharee['photo_s'] .
"' link='" . ((is_array($act->obj['url'])) ? $act->obj['url']['href'] : $act->obj['url']) .
"' auth='" . ((is_matrix_url($act->obj['url'])) ? 'true' : 'false' ) .
"' posted='" . $act->obj['published'] .
"' message_id='" . $act->obj['id'] .
"']";
if($content['name'])
$body .= self::bb_content($content,'name') . "\r\n";
$body .= self::bb_content($content,'content');
if($act->obj['type'] === 'Note' && $s['attach']) {
$body .= self::bb_attach($s['attach'],$body);
}
$body .= "[/share]";
$s['title'] = self::bb_content($content,'name');
$s['body'] = $body;
if($act->recips && (! in_array(ACTIVITY_PUBLIC_INBOX,$act->recips)))
$s['item_private'] = 1;
set_iconfig($s,'activitypub','recips',$act->raw_recips);
$r = q("select created, edited from item where mid = '%s' and uid = %d limit 1",
dbesc($s['mid']),
intval($s['uid'])
);
if($r) {
if($s['edited'] > $r[0]['edited']) {
$x = item_store_update($s);
}
else {
return;
}
}
else {
$x = item_store($s);
}
if(is_array($x) && $x['item_id']) {
if($s['owner_xchan'] === $channel['channel_hash']) {
// We are the owner of this conversation, so send all received comments back downstream
Master::Summon(array('Notifier','comment-import',$x['item_id']));
}
$r = q("select * from item where id = %d limit 1",
intval($x['item_id'])
);
if($r) {
send_status_notifications($x['item_id'],$r[0]);
}
sync_an_item($channel['channel_id'],$x['item_id']);
}
}
static function like_note($channel,$observer_hash,$act) {
$s = [];
$parent = $act->obj['id'];
if($act->type === 'Like')
$s['verb'] = ACTIVITY_LIKE;
if($act->type === 'Dislike')
$s['verb'] = ACTIVITY_DISLIKE;
if(! $parent)
return;
$r = q("select * from item where uid = %d and ( mid = '%s' or mid = '%s' ) limit 1",
intval($channel['channel_id']),
dbesc($parent),
dbesc(urldecode(basename($parent)))
);
if(! $r) {
logger('parent not found.');
return;
}
xchan_query($r);
$parent_item = $r[0];
if($parent_item['owner_xchan'] === $channel['channel_hash']) {
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'post_comments')) {
logger('no comment permission.');
return;
}
}
if($parent_item['mid'] === $parent_item['parent_mid']) {
$s['parent_mid'] = $parent_item['mid'];
}
else {
$s['thr_parent'] = $parent_item['mid'];
$s['parent_mid'] = $parent_item['parent_mid'];
}
$s['owner_xchan'] = $parent_item['owner_xchan'];
$s['author_xchan'] = $observer_hash;
$s['aid'] = $channel['channel_account_id'];
$s['uid'] = $channel['channel_id'];
$s['mid'] = $act->id;
if(! $s['parent_mid'])
$s['parent_mid'] = $s['mid'];
$post_type = (($parent_item['resource_type'] === 'photo') ? t('photo') : t('status'));
$links = array(array('rel' => 'alternate','type' => 'text/html', 'href' => $parent_item['plink']));
$objtype = (($parent_item['resource_type'] === 'photo') ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
$body = $parent_item['body'];
$z = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($parent_item['author_xchan'])
);
if($z)
$item_author = $z[0];
$object = json_encode(array(
'type' => $post_type,
'id' => $parent_item['mid'],
'parent' => (($parent_item['thr_parent']) ? $parent_item['thr_parent'] : $parent_item['parent_mid']),
'link' => $links,
'title' => $parent_item['title'],
'content' => $parent_item['body'],
'created' => $parent_item['created'],
'edited' => $parent_item['edited'],
'author' => array(
'name' => $item_author['xchan_name'],
'address' => $item_author['xchan_addr'],
'guid' => $item_author['xchan_guid'],
'guid_sig' => $item_author['xchan_guid_sig'],
'link' => array(
array('rel' => 'alternate', 'type' => 'text/html', 'href' => $item_author['xchan_url']),
array('rel' => 'photo', 'type' => $item_author['xchan_photo_mimetype'], 'href' => $item_author['xchan_photo_m'])),
),
), JSON_UNESCAPED_SLASHES
);
if($act->type === 'Like')
$bodyverb = t('%1$s likes %2$s\'s %3$s');
if($act->type === 'Dislike')
$bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
$ulink = '[url=' . $item_author['xchan_url'] . ']' . $item_author['xchan_name'] . '[/url]';
$alink = '[url=' . $parent_item['author']['xchan_url'] . ']' . $parent_item['author']['xchan_name'] . '[/url]';
$plink = '[url='. z_root() . '/display/' . urlencode($act->id) . ']' . $post_type . '[/url]';
$s['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
$s['app'] = t('ActivityPub');
// set the route to that of the parent so downstream hubs won't reject it.
$s['route'] = $parent_item['route'];
$s['item_private'] = $parent_item['item_private'];
$s['obj_type'] = $objtype;
$s['obj'] = $object;
if($act->obj['conversation']) {
set_iconfig($s,'ostatus','conversation',$act->obj['conversation'],1);
}
if($act->recips && (! in_array(ACTIVITY_PUBLIC_INBOX,$act->recips)))
$s['item_private'] = 1;
set_iconfig($s,'activitypub','recips',$act->raw_recips);
$result = item_store($s);
if($result['success']) {
// if the message isn't already being relayed, notify others
if(intval($parent_item['item_origin']))
Master::Summon(array('Notifier','comment-import',$result['item_id']));
sync_an_item($channel['channel_id'],$result['item_id']);
}
return;
}
static function bb_attach($attach,$body) {
$ret = false;
foreach($attach as $a) {
if(strpos($a['type'],'image') !== false) {
if(self::media_not_in_body($a['href'],$body)) {
$ret .= "\n\n" . '[img]' . $a['href'] . '[/img]';
}
}
if(array_key_exists('type',$a) && strpos($a['type'], 'video') === 0) {
if(self::media_not_in_body($a['href'],$body)) {
$ret .= "\n\n" . '[video]' . $a['href'] . '[/video]';
}
}
if(array_key_exists('type',$a) && strpos($a['type'], 'audio') === 0) {
if(self::media_not_in_body($a['href'],$body)) {
$ret .= "\n\n" . '[audio]' . $a['href'] . '[/audio]';
}
}
}
return $ret;
}
// check for the existence of existing media link in body
static function media_not_in_body($s,$body) {
if((strpos($body,']' . $s . '[/img]') === false) &&
(strpos($body,']' . $s . '[/zmg]') === false) &&
(strpos($body,']' . $s . '[/video]') === false) &&
(strpos($body,']' . $s . '[/audio]') === false)) {
return true;
}
return false;
}
static function bb_content($content,$field) {
require_once('include/html2bbcode.php');
require_once('include/event.php');
$ret = false;
if(is_array($content[$field])) {
foreach($content[$field] as $k => $v) {
$ret .= html2bbcode($v);
// save this for auto-translate or dynamic filtering
// $ret .= '[language=' . $k . ']' . html2bbcode($v) . '[/language]';
}
}
else {
if($field === 'bbcode' && array_key_exists('bbcode',$content)) {
$ret = $content[$field];
}
else {
$ret = html2bbcode($content[$field]);
}
}
if($field === 'content' && $content['event'] && (! strpos($ret,'[event'))) {
$ret .= format_event_bbcode($content['event']);
}
return $ret;
}
static function get_content($act) {
$content = [];
$event = null;
if ((! $act) || (! is_array($act))) {
return $content;
}
if($act['type'] === 'Event') {
$adjust = false;
$event = [];
$event['event_hash'] = $act['id'];
if(array_key_exists('startTime',$act) && strpos($act['startTime'],-1,1) === 'Z') {
$adjust = true;
$event['adjust'] = 1;
$event['dtstart'] = datetime_convert('UTC','UTC',$event['startTime'] . (($adjust) ? '' : 'Z'));
}
if(array_key_exists('endTime',$act)) {
$event['dtend'] = datetime_convert('UTC','UTC',$event['endTime'] . (($adjust) ? '' : 'Z'));
}
else {
$event['nofinish'] = true;
}
}
foreach ([ 'name', 'summary', 'content' ] as $a) {
if (($x = self::get_textfield($act,$a)) !== false) {
$content[$a] = $x;
}
}
if($event) {
$event['summary'] = $content['name'];
if(! $event['summary']) {
if($content['summary']) {
$event['summary'] = html2plain($content['summary']);
}
}
$event['description'] = html2bbcode($content['content']);
if($event['summary'] && $event['dtstart']) {
$content['event'] = $event;
}
}
if (array_key_exists('source',$act) && array_key_exists('mediaType',$act['source'])) {
if ($act['source']['mediaType'] === 'text/bbcode') {
$content['bbcode'] = purify_html($act['source']['content']);
}
}
return $content;
}
static function get_textfield($act,$field) {
$content = false;
if(array_key_exists($field,$act) && $act[$field])
$content = purify_html($act[$field]);
elseif(array_key_exists($field . 'Map',$act) && $act[$field . 'Map']) {
foreach($act[$field . 'Map'] as $k => $v) {
$content[escape_tags($k)] = purify_html($v);
}
}
return $content;
}
}