diff options
Diffstat (limited to 'Zotlabs/Module/Magic.php')
| -rw-r--r-- | Zotlabs/Module/Magic.php | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/Zotlabs/Module/Magic.php b/Zotlabs/Module/Magic.php new file mode 100644 index 000000000..63db4a317 --- /dev/null +++ b/Zotlabs/Module/Magic.php @@ -0,0 +1,173 @@ +<?php +namespace Zotlabs\Module; + +@require_once('include/zot.php'); + + +class Magic extends \Zotlabs\Web\Controller { + + function init() { + + $ret = array('success' => false, 'url' => '', 'message' => ''); + logger('mod_magic: invoked', LOGGER_DEBUG); + + logger('mod_magic: args: ' . print_r($_REQUEST,true),LOGGER_DATA); + + $addr = ((x($_REQUEST,'addr')) ? $_REQUEST['addr'] : ''); + $dest = ((x($_REQUEST,'dest')) ? $_REQUEST['dest'] : ''); + $test = ((x($_REQUEST,'test')) ? intval($_REQUEST['test']) : 0); + $rev = ((x($_REQUEST,'rev')) ? intval($_REQUEST['rev']) : 0); + $delegate = ((x($_REQUEST,'delegate')) ? $_REQUEST['delegate'] : ''); + + $parsed = parse_url($dest); + if(! $parsed) { + if($test) { + $ret['message'] .= 'could not parse ' . $dest . EOL; + return($ret); + } + goaway($dest); + } + + $basepath = $parsed['scheme'] . '://' . $parsed['host'] . (($parsed['port']) ? ':' . $parsed['port'] : ''); + + $x = q("select * from hubloc where hubloc_url = '%s' order by hubloc_connected desc limit 1", + dbesc($basepath) + ); + + if(! $x) { + + /* + * We have no records for, or prior communications with this hub. + * If an address was supplied, let's finger them to create a hub record. + * Otherwise we'll use the special address '[system]' which will return + * either a system channel or the first available normal channel. We don't + * really care about what channel is returned - we need the hub information + * from that response so that we can create signed auth packets destined + * for that hub. + * + */ + + $ret = zot_finger((($addr) ? $addr : '[system]@' . $parsed['host']),null); + if($ret['success']) { + $j = json_decode($ret['body'],true); + if($j) + import_xchan($j); + + // Now try again + + $x = q("select * from hubloc where hubloc_url = '%s' order by hubloc_connected desc limit 1", + dbesc($basepath) + ); + } + } + + if(! $x) { + if($rev) + goaway($dest); + else { + logger('mod_magic: no channels found for requested hub.' . print_r($_REQUEST,true)); + if($test) { + $ret['message'] .= 'This site has no previous connections with ' . $basepath . EOL; + return $ret; + } + notice( t('Hub not found.') . EOL); + return; + } + } + + // This is ready-made for a plugin that provides a blacklist or "ask me" before blindly authenticating. + // By default, we'll proceed without asking. + + $arr = array( + 'channel_id' => local_channel(), + 'xchan' => $x[0], + 'destination' => $dest, + 'proceed' => true + ); + + call_hooks('magic_auth',$arr); + $dest = $arr['destination']; + if(! $arr['proceed']) { + if($test) { + $ret['message'] .= 'cancelled by plugin.' . EOL; + return $ret; + } + goaway($dest); + } + + if((get_observer_hash()) && ($x[0]['hubloc_url'] === z_root())) { + // We are already authenticated on this site and a registered observer. + // Just redirect. + if($test) { + $ret['success'] = true; + $ret['message'] .= 'Local site - you are already authenticated.' . EOL; + return $ret; + } + + $delegation_success = false; + if($delegate) { + $r = q("select * from channel left join hubloc on channel_hash = hubloc_hash where hubloc_addr = '%s' limit 1", + dbesc($delegate) + ); + + if($r && intval($r[0]['channel_id'])) { + $allowed = perm_is_allowed($r[0]['channel_id'],get_observer_hash(),'delegate'); + if($allowed) { + $_SESSION['delegate_channel'] = $r[0]['channel_id']; + $_SESSION['delegate'] = get_observer_hash(); + $_SESSION['account_id'] = intval($r[0]['channel_account_id']); + change_channel($r[0]['channel_id']); + + $delegation_success = true; + } + } + } + + + + // FIXME: check and honour local delegation + + + goaway($dest); + } + + if(local_channel()) { + $channel = \App::get_channel(); + + $token = random_string(); + $token_sig = base64url_encode(rsa_sign($token,$channel['channel_prvkey'])); + + $channel['token'] = $token; + $channel['token_sig'] = $token_sig; + + \Zotlabs\Zot\Verify::create('auth',$channel['channel_id'],$token,$x[0]['hubloc_url']); + + $target_url = $x[0]['hubloc_callback'] . '/?f=&auth=' . urlencode($channel['channel_address'] . '@' . \App::get_hostname()) + . '&sec=' . $token . '&dest=' . urlencode($dest) . '&version=' . ZOT_REVISION; + + if($delegate) + $target_url .= '&delegate=' . urlencode($delegate); + + logger('mod_magic: redirecting to: ' . $target_url, LOGGER_DEBUG); + + if($test) { + $ret['success'] = true; + $ret['url'] = $target_url; + $ret['message'] = 'token ' . $token . ' created for channel ' . $channel['channel_id'] . ' for url ' . $x[0]['hubloc_url'] . EOL; + return $ret; + } + + goaway($target_url); + + } + + if($test) { + $ret['message'] = 'Not authenticated or invalid arguments to mod_magic' . EOL; + return $ret; + } + + goaway($dest); + + } + +} |