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authorzotlabs <mike@macgirvin.com>2018-08-06 17:43:22 -0700
committerzotlabs <mike@macgirvin.com>2018-08-06 17:43:22 -0700
commit166879b8b04f8656a0ef105c319b8b4a82626bd9 (patch)
tree4244b1a57ab90d7588c57789c027beeffeb6ede2 /Zotlabs/Lib/Activity.php
parentaeb9d5cd90a3bcb79c8d0b1645ece47e8756f422 (diff)
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bring some Zot6 libraries and interfaces to red/hubzilla
Diffstat (limited to 'Zotlabs/Lib/Activity.php')
-rw-r--r--Zotlabs/Lib/Activity.php1725
1 files changed, 1725 insertions, 0 deletions
diff --git a/Zotlabs/Lib/Activity.php b/Zotlabs/Lib/Activity.php
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+++ b/Zotlabs/Lib/Activity.php
@@ -0,0 +1,1725 @@
+<?php
+
+namespace Zotlabs\Lib;
+
+use Zotlabs\Lib\Libzot;
+use Zotlabs\Lib\Libsync;
+use Zotlabs\Lib\ActivityStreams;
+use Zotlabs\Lib\Group;
+
+class Activity {
+
+ static function encode_object($x) {
+
+ if(($x) && (! is_array($x)) && (substr(trim($x),0,1)) === '{' ) {
+ $x = json_decode($x,true);
+ }
+ 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);
+ }
+
+ return $x;
+
+ }
+
+
+ static function fetch_person($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);
+ return self::encode_item($r[0]);
+ }
+ }
+
+ static function encode_item_collection($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 = [];
+
+ $objtype = self::activity_obj_mapper($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;
+ }
+
+ $ret['type'] = $objtype;
+
+ $ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/item/' . urlencode($i['mid']));
+
+ if($i['title'])
+ $ret['title'] = bbcode($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['app']) {
+ $ret['instrument'] = [ 'type' => 'Service', '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];
+ }
+ }
+
+ $ret['attributedTo'] = $i['author']['xchan_url'];
+
+ if($i['id'] != $i['parent']) {
+ $ret['inReplyTo'] = ((strpos($i['parent_mid'],'http') === 0) ? $i['parent_mid'] : z_root() . '/item/' . urlencode($i['parent_mid']));
+ }
+
+ if($i['mimetype'] === 'text/bbcode') {
+ if($i['title'])
+ $ret['name'] = bbcode($i['title']);
+ if($i['summary'])
+ $ret['summary'] = bbcode($i['summary']);
+ $ret['content'] = bbcode($i['body']);
+ $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;
+ }
+
+ return $ret;
+ }
+
+ static function decode_taxonomy($item) {
+
+ $ret = [];
+
+ if($item['tag']) {
+ foreach($item['tag'] 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:
+ // An id is required so if we don't have a url in the taxonomy, ignore it and keep going.
+ if($t['url']) {
+ $ret[] = [ 'id' => $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']) {
+ $atts = json_decode($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'] ];
+ }
+ }
+ }
+ }
+
+ 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 = [];
+ $reply = false;
+
+ if(intval($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']));
+ return $ret;
+ }
+
+ $ret['type'] = self::activity_mapper($i['verb']);
+ $ret['id'] = ((strpos($i['mid'],'http') === 0) ? $i['mid'] : z_root() . '/activity/' . urlencode($i['mid']));
+
+ if($i['title'])
+ $ret['name'] = html2plain(bbcode($i['title']));
+
+ if($i['summary'])
+ $ret['summary'] = bbcode($i['summary']);
+
+ if($ret['type'] === 'Announce') {
+ $tmp = preg_replace('/\[share(.*?)\[\/share\]/ism',EMPTY_STR, $i['body']);
+ $ret['content'] = bbcode($tmp);
+ $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['instrument'] = [ 'type' => 'Service', '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']) {
+ $ret['inReplyTo'] = ((strpos($i['parent_mid'],'http') === 0) ? $i['parent_mid'] : z_root() . '/item/' . urlencode($i['parent_mid']));
+ $reply = true;
+
+ if($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'] = $actor;
+ else
+ return [];
+
+ if($i['obj']) {
+ if(! is_array($i['obj'])) {
+ $i['obj'] = json_decode($i['obj'],true);
+ }
+ $obj = self::encode_object($i['obj']);
+ if($obj)
+ $ret['object'] = $obj;
+ else
+ return [];
+ }
+ else {
+ $obj = self::encode_item($i);
+ if($obj)
+ $ret['object'] = $obj;
+ else
+ return [];
+ }
+
+ if($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 [];
+ }
+
+ return $ret;
+ }
+
+ static function map_mentions($i) {
+ if(! $i['term']) {
+ return [];
+ }
+
+ $list = [];
+
+ foreach ($i['term'] as $t) {
+ if($t['ttype'] == TERM_MENTION) {
+ $list[] = $t['url'];
+ }
+ }
+
+ return $list;
+ }
+
+ static function map_acl($i,$mentions = false) {
+
+ $private = false;
+ $list = [];
+ $x = collect_recipients($i,$private);
+ if($x) {
+ stringify_array_elms($x);
+ if(! $x)
+ return;
+
+ $strict = (($mentions) ? true : get_config('activitypub','compliance'));
+
+ $sql_extra = (($strict) ? " and xchan_network = 'activitypub' " : '');
+
+ $details = q("select xchan_url, xchan_addr, xchan_name from xchan where xchan_hash in (" . implode(',',$x) . ") $sql_extra");
+
+ if($details) {
+ foreach($details as $d) {
+ if($mentions) {
+ $list[] = [ 'type' => 'Mention', 'href' => $d['xchan_url'], 'name' => '@' . (($d['xchan_addr']) ? $d['xchan_addr'] : $d['xchan_name']) ];
+ }
+ else {
+ $list[] = $d['xchan_url'];
+ }
+ }
+ }
+ }
+
+ return $list;
+
+ }
+
+
+ static function encode_person($p, $extended = true) {
+
+ if(! $p['xchan_url'])
+ return [];
+
+ if(! $extended) {
+ return $p['xchan_url'];
+ }
+ $ret = [];
+
+ $ret['type'] = 'Person';
+ $ret['id'] = $p['xchan_url'];
+ if($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;
+ }
+
+ $acts = [
+ 'http://activitystrea.ms/schema/1.0/post' => 'Create',
+ 'http://activitystrea.ms/schema/1.0/share' => 'Announce',
+ 'http://activitystrea.ms/schema/1.0/update' => 'Update',
+ 'http://activitystrea.ms/schema/1.0/like' => 'Like',
+ 'http://activitystrea.ms/schema/1.0/favorite' => 'Like',
+ 'http://purl.org/zot/activity/dislike' => 'Dislike',
+ 'http://activitystrea.ms/schema/1.0/tag' => 'Add',
+ 'http://activitystrea.ms/schema/1.0/follow' => 'Follow',
+ 'http://activitystrea.ms/schema/1.0/unfollow' => 'Unfollow',
+ ];
+
+
+ if(array_key_exists($verb,$acts) && $acts[$verb]) {
+ return $acts[$verb];
+ }
+
+ // Reactions will just map to normal activities
+
+ if(strpos($verb,ACTIVITY_REACT) !== false)
+ return 'Create';
+ if(strpos($verb,ACTIVITY_MOOD) !== 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: ' . $verb);
+ return 'Create';
+ // return false;
+}
+
+
+ static function activity_obj_mapper($obj) {
+
+ if(strpos($obj,'/') === false) {
+ return $obj;
+ }
+
+ $objs = [
+ 'http://activitystrea.ms/schema/1.0/note' => 'Note',
+ 'http://activitystrea.ms/schema/1.0/comment' => 'Note',
+ 'http://activitystrea.ms/schema/1.0/person' => 'Person',
+ 'http://purl.org/zot/activity/profile' => 'Profile',
+ 'http://activitystrea.ms/schema/1.0/photo' => 'Image',
+ 'http://activitystrea.ms/schema/1.0/profile-photo' => 'Icon',
+ 'http://activitystrea.ms/schema/1.0/event' => 'Event',
+ 'http://activitystrea.ms/schema/1.0/wiki' => 'Document',
+ 'http://purl.org/zot/activity/location' => 'Place',
+ 'http://purl.org/zot/activity/chessgame' => 'Game',
+ 'http://purl.org/zot/activity/tagterm' => 'zot:Tag',
+ 'http://purl.org/zot/activity/thing' => 'Object',
+ 'http://purl.org/zot/activity/file' => 'zot:File',
+ 'http://purl.org/zot/activity/mood' => 'zot:Mood',
+
+ ];
+
+ if(array_key_exists($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);
+ \Zotlabs\Daemon\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
+ \Zotlabs\Daemon\Master::Summon([ 'Notifier', 'permissions_accept', $new_connection[0]['abook_id'] ]);
+ // Send back a Follow notification to them
+ \Zotlabs\Daemon\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);
+ $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'",
+ dbescdate(datetime_convert('UTC','UTC',$arr['photo_updated'])),
+ 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(! $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;
+
+ $instrument = $act->get_property_obj('instrument');
+ if(! $instrument)
+ $instrument = $act->get_property_obj('instrument',$act->obj);
+
+ if($instrument && array_key_exists('type',$instrument)
+ && $instrument['type'] === 'Service' && array_key_exists('name',$instrument)) {
+ $s['app'] = escape_tags($instrument['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']);
+ }
+
+ // 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)))
+ $s['item_private'] = 1;
+
+ set_iconfig($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'] === $channel['channel_hash']) {
+ // We are the owner of this conversation, so send all received comments back downstream
+ Zotlabs\Daemon\Master::Summon(array('Notifier','comment-import',$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'],$x['item_id']);
+ }
+
+ }
+
+
+ static function decode_note($act) {
+
+ $s = [];
+
+
+
+ $content = self::get_content($act->obj);
+
+ $s['owner_xchan'] = $act->actor['id'];
+ $s['author_xchan'] = $act->actor['id'];
+
+ $s['mid'] = $act->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(! $s['created'])
+ $s['created'] = datetime_convert();
+
+ if(! $s['edited'])
+ $s['edited'] = $s['created'];
+
+ if(in_array($act->type,['Announce'])) {
+ $root_content = self::get_content($act->raw);
+
+ $s['title'] = self::bb_content($root_content,'name');
+ $s['summary'] = self::bb_content($root_content,'summary');
+ $s['body'] = (self::bb_content($root_content,'bbcode') ? : self::bb_content($root_content,'content'));
+
+ if(strpos($s['body'],'[share') === false) {
+
+ // @fixme - error check and set defaults
+
+ $name = urlencode($act->obj['actor']['name']);
+ $profile = $act->obj['actor']['id'];
+ $photo = $act->obj['icon']['url'];
+
+ $s['body'] .= "\r\n[share author='" . $name .
+ "' profile='" . $profile .
+ "' avatar='" . $photo .
+ "' link='" . $act->obj['id'] .
+ "' auth='" . ((is_matrix_url($act->obj['id'])) ? 'true' : 'false' ) .
+ "' posted='" . $act->obj['published'] .
+ "' message_id='" . $act->obj['id'] .
+ "']";
+ }
+ }
+ else {
+ $s['title'] = self::bb_content($content,'name');
+ $s['summary'] = self::bb_content($content,'summary');
+ $s['body'] = (self::bb_content($content,'bbcode') ? : self::bb_content($content,'content'));
+ }
+
+ $s['verb'] = self::activity_mapper($act->type);
+
+ if($act->type === 'Tombstone') {
+ $s['item_deleted'] = 1;
+ }
+
+ $s['obj_type'] = self::activity_obj_mapper($act->obj['type']);
+ $s['obj'] = $act->obj;
+
+ $instrument = $act->get_property_obj('instrument');
+ if(! $instrument)
+ $instrument = $act->get_property_obj('instrument',$act->obj);
+
+ if($instrument && array_key_exists('type',$instrument)
+ && $instrument['type'] === 'Service' && array_key_exists('name',$instrument)) {
+ $s['app'] = escape_tags($instrument['name']);
+ }
+
+ $a = self::decode_taxonomy($act->obj);
+ if($a) {
+ $s['term'] = $a;
+ }
+
+ $a = self::decode_attachment($act->obj);
+ if($a) {
+ $s['attach'] = $a;
+ }
+
+ // we will need a hook here to extract magnet links e.g. peertube
+ // right now just link to the largest mp4 we find that will fit in our
+ // standard content region
+
+ if($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)))
+ $s['item_private'] = 1;
+
+ set_iconfig($s,'activitypub','recips',$act->raw_recips);
+
+ if($parent) {
+ set_iconfig($s,'activitypub','rawmsg',$act->raw,1);
+ }
+
+ return $s;
+
+ }
+
+
+
+ static function announce_note($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 .= "[/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) && $x['item_id']) {
+ if($parent) {
+ if($s['owner_xchan'] === $channel['channel_hash']) {
+ // We are the owner of this conversation, so send all received comments back downstream
+ Zotlabs\Daemon\Master::Summon(array('Notifier','comment-import',$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']))
+ Zotlabs\Daemon\Master::Summon(array('Notifier','comment-import',$result['item_id']));
+ sync_an_item($channel['channel_id'],$result['item_id']);
+ }
+
+ return;
+ }
+
+
+ static function bb_attach($attach) {
+
+ $ret = false;
+
+ foreach($attach as $a) {
+ if(strpos($a['type'],'image') !== false) {
+ $ret .= "\n\n" . '[img]' . $a['href'] . '[/img]';
+ }
+ if(array_key_exists('type',$a) && strpos($a['type'], 'video') === 0) {
+ $ret .= "\n\n" . '[video]' . $a['href'] . '[/video]';
+ }
+ if(array_key_exists('type',$a) && strpos($a['type'], 'audio') === 0) {
+ $ret .= "\n\n" . '[audio]' . $a['href'] . '[/audio]';
+ }
+ }
+
+ return $ret;
+ }
+
+
+
+ static function bb_content($content,$field) {
+
+ require_once('include/html2bbcode.php');
+
+ $ret = false;
+
+ if(is_array($content[$field])) {
+ foreach($content[$field] as $k => $v) {
+ $ret .= '[language=' . $k . ']' . html2bbcode($v) . '[/language]';
+ }
+ }
+ else {
+ if($field === 'bbcode' && array_key_exists('bbcode',$content)) {
+ $ret = $content[$field];
+ }
+ else {
+ $ret = html2bbcode($content[$field]);
+ }
+ }
+
+ return $ret;
+ }
+
+
+ static function get_content($act) {
+
+ $content = [];
+ if (! $act) {
+ return $content;
+ }
+
+ foreach ([ 'name', 'summary', 'content' ] as $a) {
+ if (($x = self::get_textfield($act,$a)) !== false) {
+ $content[$a] = $x;
+ }
+ }
+ if (array_key_exists('source',$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;
+ }
+} \ No newline at end of file