diff options
Diffstat (limited to 'mod/post.php')
| -rw-r--r-- | mod/post.php | 151 |
1 files changed, 147 insertions, 4 deletions
diff --git a/mod/post.php b/mod/post.php index ee21f2ffb..bfcc99022 100644 --- a/mod/post.php +++ b/mod/post.php @@ -6,6 +6,110 @@ require_once('include/zot.php'); + + +function post_init(&$a) { + + // All other access to this endpoint is via the post method. + // Here we will pick out the magic auth params which arrive + // as a get request. + + if(argc() > 1) { + + $webbie = argv(1); + + if(array_key_exists('auth',$_REQUEST)) { + + $address = $_REQUEST['auth']; + $dest = $_REQUEST['dest']; + $sec = $_REQUEST['sec']; + $version = $_REQUEST['version']; + + switch($dest) { + case 'channel': + $desturl = z_root() . '/channel/' . $webbie; + break; + case 'photos': + $desturl = z_root() . '/photos/' . $webbie; + break; + case 'profile': + $desturl = z_root() . '/profile/' . $webbie; + break; + default: + $desturl = $dest; + break; + } + $c = q("select * from channel where channel_address = '%s' limit 1", + dbesc($webbie) + ); + if(! $c) { + logger('mod_zot: auth: unable to find channel ' . $webbie); + // They'll get a notice when they hit the page, we don't need two. + goaway($desturl); + } + + // Try and find a hubloc for the person attempting to auth + $x = q("select * from hubloc left join xchan on xchan_hash = hubloc_hash where hubloc_addr = '%s' limit 1", + dbesc($address) + ); + + if(! $x) { + // finger them if they can't be found. + $ret = zot_finger($addr,null); + if($ret['success']) { + $j = json_decode($ret['body'],true); + if($j) + import_xchan($j); + $x = q("select * from hubloc left join xchan on xchan_hash = hubloc_hash where hubloc_addr = '%s' limit 1", + dbesc($address) + ); + } + } + if(! $x) + goaway($desturl); + + // check credentials and access + + // Auth packets MUST use ultra top-secret hush-hush mode + + $p = zot_build_packet($c[0],$type = 'auth_check',array('guid' => $x[0]['hubloc_guid'],'guid_sig' => $x[0]['hubloc_guid_sig']), $x[0]['hubloc_prvkey'], $sec); + $result = zot_zot($x[0]['hubloc_url'],$p); + + if($result['success']) { + $j = json_decode($result['body'],true); + if($j['result']) { + // everything is good... maybe + if(local_user()) { + notice( t('Remote authentication blocked. You are logged into this site locally. Please logout and retry') . EOL); + goaway($desturl); + } + // log them in + $_SESSION['authenticated'] = 1; + $_SESSION['visitor_id'] = $x[0]['xchan_hash']; + $a->set_observer($x[0]); + $a->set_groups(init_groups_visitor($_SESSION['visitor_id'])); + notice(sprintf( t('Welcome %s. Remote authentication successful.'),$x[0]['xchan_name'])); + } + } + + + + + + + goaway($desturl); + } + + logger('mod_zot: invalid args: ' . print_r($a->argv,true)); + killme(); + } + + return; +} + + + + function post_post(&$a) { @@ -165,12 +269,51 @@ function post_post(&$a) { } - if($msgtype === 'auth') { - logger('mod_post: auth: ' . print_r($data,true)); - + if($msgtype === 'auth_check') { + $arr = $data['sender']; + $sender_hash = base64url_encode(hash('whirlpool',$arr['guid'] . $arr['guid_sig'], true)); + $y = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1", + dbesc($sender_hash) + ); + if((! $y) || (! rsa_verify($data['secret'],$data['secret_sig'],$y[0]['xchan_pubkey']))) { + logger('mod_zot: auth_check: sender not found or secret_sig invalid.'); + json_return_and_die($ret); + } + if($data['recipients']) { + + $arr = $data['recipients'][0]; + $recip_hash = base64url_encode(hash('whirlpool',$arr['guid'] . $arr['guid_sig'], true)); + $c = q("select channel_id from channel where channel_hash = '%s' limit 1", + dbesc($recip_hash) + ); + if(! $c) { + logger('mod_zot: auth_check: recipient channel not found.'); + json_return_and_die($ret); + } + $z = q("select id from verify where channel = %d and type = 'auth' and token = '%s' limit 1", + intval($c[0]['channel_id']), + dbesc($data['secret']) + ); + if(! $z) { + logger('mod_zot: auth_check: verification key not found.'); + json_return_and_die($ret); + } + $r = q("delete from verify where id = %d limit 1", + intval($z[0]['id']) + ); + + $ret['result'] = true; + json_return_and_die($ret); + + } + json_return_and_die($ret); } -} + // catchall + json_return_and_die($ret); + + +} |