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-rw-r--r--include/channel.php102
1 files changed, 102 insertions, 0 deletions
diff --git a/include/channel.php b/include/channel.php
index 49da57fd6..f6252f094 100644
--- a/include/channel.php
+++ b/include/channel.php
@@ -454,6 +454,108 @@ function create_identity($arr) {
return $ret;
}
+
+function change_channel_keys($channel) {
+
+ $ret = array('success' => false);
+
+ $stored = [];
+
+ $key = new_keypair(4096);
+
+ $sig = base64url_encode(rsa_sign($channel['channel_guid'],$key['prvkey']));
+ $hash = make_xchan_hash($channel['channel_guid'],$sig);
+
+ $stored['old_guid'] = $channel['channel_guid'];
+ $stored['old_guid_sig'] = $channel['channel_guid_sig'];
+ $stored['old_key'] = $channel['channel_pubkey'];
+ $stored['old_hash'] = $channel['channel_hash'];
+
+ $stored['new_key'] = $key['pubkey'];
+ $stored['new_sig'] = base64url_encode(rsa_sign($key['pubkey'],$channel['channel_prvkey']));
+
+ // Save this info for the notifier to collect
+
+ set_pconfig($channel['channel_id'],'system','keychange',$stored);
+
+ $r = q("update channel set channel_prvkey = '%s', channel_pubkey = '%s', channel_guid_sig = '%s', channel_hash = '%s' where channel_id = %d",
+ dbesc($key['prvkey']),
+ dbesc($key['pubkey']),
+ dbesc($sig),
+ dbesc($hash),
+ intval($channel['channel_id'])
+ );
+ if(! $r) {
+ return $ret;
+ }
+
+ $r = q("select * from channel where channel_id = %d",
+ intval($channel['channel_id'])
+ );
+
+ if(! $r) {
+ $ret['message'] = t('Unable to retrieve modified identity');
+ return $ret;
+ }
+
+ $modified = $r[0];
+
+ $h = q("select * from hubloc where hubloc_hash = '%s' and hubloc_url = '%s' ",
+ dbesc($stored['old_hash']),
+ dbesc(z_root())
+ );
+
+ if($h) {
+ foreach($h as $hv) {
+ $hv['hubloc_guid_sig'] = $sig;
+ $hv['hubloc_hash'] = $hash;
+ $hv['hubloc_url_sig'] = base64url_encode(rsa_sign(z_root(),$modifed['channel_prvkey']));
+ hubloc_store_lowlevel($hv);
+ }
+ }
+
+ $x = q("select * from xchan where xchan_hash = '%s' ",
+ dbesc($stored['old_hash'])
+ );
+
+ $check = q("select * from xchan where xchan_hash = '%s'",
+ dbesc($hash)
+ );
+
+ if(($x) && (! $check)) {
+ $oldxchan = $x[0];
+ foreach($x as $xv) {
+ $xv['xchan_guid_sig'] = $sig;
+ $xv['xchan_hash'] = $hash;
+ $xv['xchan_pubkey'] = $key['pubkey'];
+ xchan_store_lowlevel($xv);
+ $newxchan = $xv;
+ }
+ }
+
+ build_sync_packet($channel['channel_id'], [ 'keychange' => $stored ]);
+
+ $a = q("select * from abook where abook_xchan = '%s' and abook_self = 1",
+ dbesc($stored['old_hash'])
+ );
+
+ if($a) {
+ q("update abook set abook_xchan = '%s' where abook_id = %d",
+ dbesc($hash),
+ intval($a[0]['abook_id'])
+ );
+ }
+
+ xchan_change_key($oldxchan,$newxchan,$stored);
+
+ Zotlabs\Daemon\Master::Summon(array('Notifier', 'keychange', $channel['channel_id']));
+
+ $ret['success'] = true;
+ return $ret;
+}
+
+
+
/**
* @brief Set default channel to be used on login.
*