function new_contact($uid, $url, $channel, $interactive = false, $confirm = false)
{
$result = array('success' => false, 'message' => '');
$is_red = false;
$is_http = strpos($url, '://') !== false ? true : false;
if ($is_http && substr($url, -1, 1) === '/') {
$url = substr($url, 0, -1);
}
if (!allowed_url($url)) {
$result['message'] = t('Channel is blocked on this site.');
return $result;
}
if (!$url) {
$result['message'] = t('Channel location missing.');
return $result;
}
// check service class limits
$r = q("select count(*) as total from abook where abook_channel = %d and abook_self = 0 ", intval($uid));
if ($r) {
$total_channels = $r[0]['total'];
}
if (!service_class_allows($uid, 'total_channels', $total_channels)) {
$result['message'] = upgrade_message();
return $result;
}
$arr = array('url' => $url, 'channel' => array());
call_hooks('follow', $arr);
if ($arr['channel']['success']) {
$ret = $arr['channel'];
} elseif (!$is_http) {
$ret = Zotlabs\Zot\Finger::run($url, $channel);
}
if ($ret && is_array($ret) && $ret['success']) {
$is_red = true;
$j = $ret;
}
$my_perms = get_channel_default_perms($uid);
$role = get_pconfig($uid, 'system', 'permissions_role');
if ($role) {
$x = \Zotlabs\Access\PermissionRoles::role_perms($role);
if ($x['perms_connect']) {
$my_perms = $x['perms_connect'];
}
}
if ($is_red && $j) {
logger('follow: ' . $url . ' ' . print_r($j, true), LOGGER_DEBUG);
if (!($j['success'] && $j['guid'])) {
$result['message'] = t('Response from remote channel was incomplete.');
logger('mod_follow: ' . $result['message']);
return $result;
}
// Premium channel, set confirm before callback to avoid recursion
if (array_key_exists('connect_url', $j) && $interactive && !$confirm) {
goaway(zid($j['connect_url']));
}
// do we have an xchan and hubloc?
// If not, create them.
$x = import_xchan($j);
if (array_key_exists('deleted', $j) && intval($j['deleted'])) {
$result['message'] = t('Channel was deleted and no longer exists.');
return $result;
}
if (!$x['success']) {
return $x;
}
$xchan_hash = $x['hash'];
if (array_key_exists('permissions', $j) && array_key_exists('data', $j['permissions'])) {
$permissions = crypto_unencapsulate(array('data' => $j['permissions']['data'], 'key' => $j['permissions']['key'], 'iv' => $j['permissions']['iv']), $channel['channel_prvkey']);
if ($permissions) {
$permissions = json_decode($permissions, true);
}
logger('decrypted permissions: ' . print_r($permissions, true), LOGGER_DATA);
} else {
$permissions = $j['permissions'];
}
if (is_array($permissions) && $permissions) {
foreach ($permissions as $k => $v) {
set_abconfig($channel['channel_uid'], $xchan_hash, 'their_perms', $k, intval($v));
}
}
} else {
$xchan_hash = '';
$r = q("select * from xchan where xchan_hash = '%s' or xchan_url = '%s' limit 1", dbesc($url), dbesc($url));
if (!$r) {
// attempt network auto-discovery
$d = discover_by_webbie($url);
if (!$d && $is_http) {
// try RSS discovery
if (get_config('system', 'feed_contacts')) {
$d = discover_by_url($url);
} else {
$result['message'] = t('Protocol disabled.');
return $result;
}
}
if ($d) {
$r = q("select * from xchan where xchan_hash = '%s' or xchan_url = '%s' limit 1", dbesc($url), dbesc($url));
}
}
// if discovery was a success we should have an xchan record in $r
if ($r) {
$xchan = $r[0];
$xchan_hash = $r[0]['xchan_hash'];
$their_perms = 0;
}
}
if (!$xchan_hash) {
$result['message'] = t('Channel discovery failed.');
logger('follow: ' . $result['message']);
return $result;
}
$allowed = $is_red || $r[0]['xchan_network'] === 'rss' ? 1 : 0;
$x = array('channel_id' => $uid, 'follow_address' => $url, 'xchan' => $r[0], 'allowed' => $allowed, 'singleton' => 0);
call_hooks('follow_allow', $x);
if (!$x['allowed']) {
$result['message'] = t('Protocol disabled.');
return $result;
}
$singleton = intval($x['singleton']);
$aid = $channel['channel_account_id'];
$hash = get_observer_hash();
$default_group = $channel['channel_default_group'];
if ($xchan['xchan_network'] === 'rss') {
// check service class feed limits
$r = q("select count(*) as total from abook where abook_account = %d and abook_feed = 1 ", intval($aid));
if ($r) {
$total_feeds = $r[0]['total'];
}
if (!service_class_allows($uid, 'total_feeds', $total_feeds)) {
$result['message'] = upgrade_message();
return $result;
}
}
if ($hash == $xchan_hash) {
$result['message'] = t('Cannot connect to yourself.');
return $result;
}
$r = q("select abook_xchan, abook_instance from abook where abook_xchan = '%s' and abook_channel = %d limit 1", dbesc($xchan_hash), intval($uid));
if ($is_http) {
// Always set these "remote" permissions for feeds since we cannot interact with them
// to negotiate a suitable permission response
set_abconfig($uid, $xchan_hash, 'their_perms', 'view_stream', 1);
set_abconfig($uid, $xchan_hash, 'their_perms', 'republish', 1);
}
if ($r) {
$abook_instance = $r[0]['abook_instance'];
if ($singleton && strpos($abook_instance, z_root()) === false) {
if ($abook_instance) {
$abook_instance .= ',';
}
$abook_instance .= z_root();
}
$x = q("update abook set abook_instance = '%s' where abook_id = %d", dbesc($abook_instance), intval($r[0]['abook_id']));
} else {
$closeness = get_pconfig($uid, 'system', 'new_abook_closeness');
if ($closeness === false) {
$closeness = 80;
}
$r = q("insert into abook ( abook_account, abook_channel, abook_closeness, abook_xchan, abook_feed, abook_created, abook_updated, abook_instance )\n\t\t\tvalues( %d, %d, %d, '%s', %d, '%s', '%s', '%s' ) ", intval($aid), intval($uid), intval($closeness), dbesc($xchan_hash), intval($is_http ? 1 : 0), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc($singleton ? z_root() : ''));
}
if (!$r) {
logger('mod_follow: abook creation failed');
}
$all_perms = \Zotlabs\Access\Permissions::Perms();
if ($all_perms) {
foreach ($all_perms as $k => $v) {
if (in_array($k, $my_perms)) {
set_abconfig($uid, $xchan_hash, 'my_perms', $k, 1);
} else {
set_abconfig($uid, $xchan_hash, 'my_perms', $k, 0);
}
}
}
$r = q("select abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash \n\t\twhere abook_xchan = '%s' and abook_channel = %d limit 1", dbesc($xchan_hash), intval($uid));
if ($r) {
$result['abook'] = $r[0];
Zotlabs\Daemon\Master::Summon(array('Notifier', 'permission_create', $result['abook']['abook_id']));
}
$arr = array('channel_id' => $uid, 'channel' => $channel, 'abook' => $result['abook']);
call_hooks('follow', $arr);
/** If there is a default group for this channel, add this connection to it */
if ($default_group) {
require_once 'include/group.php';
$g = group_rec_byhash($uid, $default_group);
if ($g) {
group_add_member($uid, '', $xchan_hash, $g['id']);
}
}
$result['success'] = true;
return $result;
}
function new_contact($uid, $url, $channel, $interactive = false, $confirm = false)
{
$result = array('success' => false, 'message' => '');
$a = get_app();
$is_red = false;
$is_http = strpos($url, '://') !== false ? true : false;
if ($is_http && substr($url, -1, 1) === '/') {
$url = substr($url, 0, -1);
}
if (!allowed_url($url)) {
$result['message'] = t('Channel is blocked on this site.');
return $result;
}
if (!$url) {
$result['message'] = t('Channel location missing.');
return $result;
}
// check service class limits
$r = q("select count(*) as total from abook where abook_channel = %d and abook_self = 0 ", intval($uid));
if ($r) {
$total_channels = $r[0]['total'];
}
if (!service_class_allows($uid, 'total_channels', $total_channels)) {
$result['message'] = upgrade_message();
return $result;
}
$arr = array('url' => $url, 'channel' => array());
call_hooks('follow', $arr);
if ($arr['channel']['success']) {
$ret = $arr['channel'];
} elseif (!$is_http) {
$ret = zot_finger($url, $channel);
}
if ($ret && $ret['success']) {
$is_red = true;
$j = json_decode($ret['body'], true);
}
$my_perms = get_channel_default_perms($uid);
$role = get_pconfig($uid, 'system', 'permissions_role');
if ($role) {
$x = get_role_perms($role);
if ($x['perms_follow']) {
$my_perms = $x['perms_follow'];
}
}
if ($is_red && $j) {
logger('follow: ' . $url . ' ' . print_r($j, true), LOGGER_DEBUG);
if (!($j['success'] && $j['guid'])) {
$result['message'] = t('Response from remote channel was incomplete.');
logger('mod_follow: ' . $result['message']);
return $result;
}
// Premium channel, set confirm before callback to avoid recursion
if (array_key_exists('connect_url', $j) && $interactive && !$confirm) {
goaway(zid($j['connect_url']));
}
// do we have an xchan and hubloc?
// If not, create them.
$x = import_xchan($j);
if (array_key_exists('deleted', $j) && intval($j['deleted'])) {
$result['message'] = t('Channel was deleted and no longer exists.');
return $result;
}
if (!$x['success']) {
return $x;
}
$xchan_hash = $x['hash'];
$their_perms = 0;
$global_perms = get_perms();
if (array_key_exists('permissions', $j) && array_key_exists('data', $j['permissions'])) {
$permissions = crypto_unencapsulate(array('data' => $j['permissions']['data'], 'key' => $j['permissions']['key'], 'iv' => $j['permissions']['iv']), $channel['channel_prvkey']);
if ($permissions) {
$permissions = json_decode($permissions, true);
}
logger('decrypted permissions: ' . print_r($permissions, true), LOGGER_DATA);
} else {
$permissions = $j['permissions'];
}
foreach ($permissions as $k => $v) {
if ($v) {
$their_perms = $their_perms | intval($global_perms[$k][1]);
}
}
} else {
$their_perms = 0;
$xchan_hash = '';
$r = q("select * from xchan where xchan_hash = '%s' or xchan_url = '%s' limit 1", dbesc($url), dbesc($url));
if (!$r) {
// attempt network auto-discovery
if (strpos($url, '@') && !$is_http) {
$r = discover_by_webbie($url);
} elseif ($is_http) {
$r = discover_by_url($url);
$r['allowed'] = intval(get_config('system', 'feed_contacts'));
}
if ($r) {
$r['channel_id'] = $uid;
call_hooks('follow_allow', $r);
if (!$r['allowed']) {
$result['message'] = t('Protocol disabled.');
return $result;
}
$r = q("select * from xchan where xchan_hash = '%s' or xchan_url = '%s' limit 1", dbesc($url), dbesc($url));
}
}
if ($r) {
$xchan_hash = $r[0]['xchan_hash'];
$their_perms = 0;
}
}
if (!$xchan_hash) {
$result['message'] = t('Channel discovery failed.');
logger('follow: ' . $result['message']);
return $result;
}
if (local_channel() && $uid == local_channel()) {
$aid = get_account_id();
$hash = get_observer_hash();
$ch = $a->get_channel();
$default_group = $ch['channel_default_group'];
} else {
$r = q("select * from channel where channel_id = %d limit 1", intval($uid));
if (!$r) {
$result['message'] = t('local account not found.');
return $result;
}
$aid = $r[0]['channel_account_id'];
$hash = $r[0]['channel_hash'];
$default_group = $r[0]['channel_default_group'];
}
if ($is_http) {
$r = q("select count(*) as total from abook where abook_account = %d and abook_feed = 1 ", intval($aid));
if ($r) {
$total_feeds = $r[0]['total'];
}
if (!service_class_allows($uid, 'total_feeds', $total_feeds)) {
$result['message'] = upgrade_message();
return $result;
}
}
if ($hash == $xchan_hash) {
$result['message'] = t('Cannot connect to yourself.');
return $result;
}
$r = q("select abook_xchan from abook where abook_xchan = '%s' and abook_channel = %d limit 1", dbesc($xchan_hash), intval($uid));
if ($r) {
$x = q("update abook set abook_their_perms = %d where abook_id = %d", intval($their_perms), intval($r[0]['abook_id']));
} else {
$closeness = get_pconfig($uid, 'system', 'new_abook_closeness');
if ($closeness === false) {
$closeness = 80;
}
$r = q("insert into abook ( abook_account, abook_channel, abook_closeness, abook_xchan, abook_feed, abook_their_perms, abook_my_perms, abook_created, abook_updated )\n\t\t\tvalues( %d, %d, %d, '%s', %d, %d, %d, '%s', '%s' ) ", intval($aid), intval($uid), intval($closeness), dbesc($xchan_hash), intval($is_http ? 1 : 0), intval($is_http ? $their_perms | PERMS_R_STREAM | PERMS_A_REPUBLISH : $their_perms), intval($my_perms), dbesc(datetime_convert()), dbesc(datetime_convert()));
}
if (!$r) {
logger('mod_follow: abook creation failed');
}
$r = q("select abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash \n\t\twhere abook_xchan = '%s' and abook_channel = %d limit 1", dbesc($xchan_hash), intval($uid));
if ($r) {
$result['abook'] = $r[0];
proc_run('php', 'include/notifier.php', 'permission_update', $result['abook']['abook_id']);
}
$arr = array('channel_id' => $uid, 'abook' => $result['abook']);
call_hooks('follow', $arr);
/** If there is a default group for this channel, add this member to it */
if ($default_group) {
require_once 'include/group.php';
$g = group_rec_byhash($uid, $default_group);
if ($g) {
group_add_member($uid, '', $xchan_hash, $g['id']);
}
}
$result['success'] = true;
return $result;
}
