diff options
Diffstat (limited to 'Zotlabs/Zot/Auth.php')
| -rw-r--r-- | Zotlabs/Zot/Auth.php | 298 |
1 files changed, 147 insertions, 151 deletions
diff --git a/Zotlabs/Zot/Auth.php b/Zotlabs/Zot/Auth.php index 715676979..f9a1de8ab 100644 --- a/Zotlabs/Zot/Auth.php +++ b/Zotlabs/Zot/Auth.php @@ -4,8 +4,10 @@ namespace Zotlabs\Zot; class Auth { - protected $ret; protected $test; + protected $test_results; + protected $debug_msg; + protected $address; protected $desturl; protected $sec; @@ -23,19 +25,22 @@ class Auth { function __construct($req) { - $this->ret = array('success' => false); - $this->success = false; - $this->test = ((array_key_exists('test',$req)) ? intval($req['test']) : 0); - $this->address = $req['auth']; - $this->desturl = $req['dest']; - $this->sec = $req['sec']; - $this->version = $req['version']; - $this->delegate = $req['delegate']; + $this->test = ((array_key_exists('test',$req)) ? intval($req['test']) : 0); + $this->test_results = array('success' => false); + $this->debug_msg = ''; + + $this->success = false; + $this->address = $req['auth']; + $this->desturl = $req['dest']; + $this->sec = $req['sec']; + $this->version = $req['version']; + $this->delegate = $req['delegate']; $c = get_sys_channel(); if(! $c) { logger('unable to obtain response (sys) channel'); - reply_die('no local channels found.'); + $this->Debug('no local channels found.'); + $this->Finalise(); } $x = $this->GetHublocs($this->address); @@ -57,13 +62,17 @@ class Auth { if(strstr($this->desturl,z_root() . '/rmagic')) goaway(z_root()); - $this->reply_die(''); + $this->Finalise(); } function GetHublocs($address) { - // Try and find a hubloc for the person attempting to auth + // Try and find a hubloc for the person attempting to auth. + // Since we're matching by address, we have to return all entries + // some of which may be from re-installed hubs; and we'll need to + // try each sequentially to see if one can pass the test + $x = q("select * from hubloc left join xchan on xchan_hash = hubloc_hash where hubloc_addr = '%s' order by hubloc_id desc", dbesc($address) @@ -74,7 +83,7 @@ class Auth { $ret = zot_finger($address, null); if ($ret['success']) { $j = json_decode($ret['body'], true); - if ($j) + if($j) import_xchan($j); $x = q("select * from hubloc left join xchan on xchan_hash = hubloc_hash where hubloc_addr = '%s' order by hubloc_id desc", @@ -84,7 +93,8 @@ class Auth { } if(! $x) { logger('mod_zot: auth: unable to finger ' . $address); - $this->reply_die('no hubloc found for ' . $address . ' and probing failed.'); + $this->Debug('no hubloc found for ' . $address . ' and probing failed.'); + $this->Finalise(); } return $x; @@ -107,167 +117,154 @@ class Auth { // Also check that they are coming from the same site as they authenticated with originally. - $already_authed = ((($this->remote) && ($hubloc['hubloc_hash'] == $this->remote) + $already_authed = (((remote_channel()) && ($hubloc['hubloc_hash'] == remote_channel()) && ($hubloc['hubloc_url'] === $_SESSION['remote_hub'])) ? true : false); - if($this->delegate && $this->delegate !== $_SESSION['delegate_channel']) - $already_authed = false; - - $j = array(); - - if(! $already_authed) { + + if($this->delegate && $this->delegate !== $_SESSION['delegate_channel']) + $already_authed = false; - // Auth packets MUST use ultra top-secret hush-hush mode - e.g. the entire packet is encrypted using the - // site private key - // The actual channel sending the packet ($c[0]) is not important, but this provides a - // generic zot packet with a sender which can be verified + if($already_authed) + return true; - $p = zot_build_packet($channel,$type = 'auth_check', - array(array('guid' => $hubloc['hubloc_guid'],'guid_sig' => $hubloc['hubloc_guid_sig'])), - $hubloc['hubloc_sitekey'], $this->sec); + if(local_channel()) { - $this->dbg_msg('auth check packet created using sitekey ' . $hubloc['hubloc_sitekey']); - $this->dbg_msg('packet contents: ' . $p); + // tell them to logout if they're logged in locally as anything but the target remote account + // in which case just shut up because they don't need to be doing this at all. - - $result = zot_zot($hubloc['hubloc_callback'],$p); - - if(! $result['success']) { - logger('auth_check callback failed.'); - if($this->test) { - $this->dbg_msg('auth check request to your site returned .' . print_r($result, true)); - return false; - } - return false; + if (get_app()->channel['channel_hash'] == $hubloc['xchan_hash']) { + return true; } - $j = json_decode($result['body'], true); - if(! $j) { - logger('auth_check json data malformed.'); + else { + logger('already authenticated locally as somebody else.'); + notice( t('Remote authentication blocked. You are logged into this site locally. Please logout and retry.') . EOL); if($this->test) { - $this->dbg_msg('json malformed: ' . $result['body']); + $this->Debug('already logged in locally with a conflicting identity.'); return false; } } + return false; + } - $this->dbg_msg('auth check request returned .' . print_r($j, true)); - - if ($already_authed || $j['success']) { - if($j['success']) { - // legit response, but we do need to check that this wasn't answered by a man-in-middle - if (! rsa_verify($this->sec . $hubloc['xchan_hash'],base64url_decode($j['confirm']),$hubloc['xchan_pubkey'])) { - logger('final confirmation failed.'); - if($this->test) { - $this->dbg_msg('final confirmation failed. ' . $sec . print_r($j,true) . print_r($hubloc,true)); - return false; - } - return false; - } - if (array_key_exists('service_class',$j)) - $this->remote_service_class = $j['service_class']; - if (array_key_exists('level',$j)) - $this->remote_level = $j['level']; - if (array_key_exists('DNT',$j)) - $this->dnt = $j['DNT']; - } + // Auth packets MUST use ultra top-secret hush-hush mode - e.g. the entire packet is encrypted using the + // site private key + // The actual channel sending the packet ($c[0]) is not important, but this provides a + // generic zot packet with a sender which can be verified - // everything is good... maybe + $p = zot_build_packet($channel,$type = 'auth_check', + array(array('guid' => $hubloc['hubloc_guid'],'guid_sig' => $hubloc['hubloc_guid_sig'])), + $hubloc['hubloc_sitekey'], $this->sec); - if(local_channel()) { + $this->Debug('auth check packet created using sitekey ' . $hubloc['hubloc_sitekey']); + $this->Debug('packet contents: ' . $p); - // tell them to logout if they're logged in locally as anything but the target remote account - // in which case just shut up because they don't need to be doing this at all. + $result = zot_zot($hubloc['hubloc_callback'],$p); - if (get_app()->channel['channel_hash'] != $hubloc['xchan_hash']) { - logger('already authenticated locally as somebody else.'); - notice( t('Remote authentication blocked. You are logged into this site locally. Please logout and retry.') . EOL); - if($this->test) { - $$this->dbg_msg('already logged in locally with a conflicting identity.'); - return false;; - } - } - return false;; - } + if(! $result['success']) { + logger('auth_check callback failed.'); + if($this->test) { + $this->Debug('auth check request to your site returned .' . print_r($result, true)); + return false; + } + return false; + } + $j = json_decode($result['body'], true); + if(! $j) { + logger('auth_check json data malformed.'); + if($this->test) { + $this->Debug('json malformed: ' . $result['body']); + return false; + } + } - // log them in + $this->Debug('auth check request returned .' . print_r($j, true)); - if ($this->test) { - $ret['success'] = true; - $this->reply_die('Authentication Success!'); - } + if(! $j['success']) + return false; - $this->delegate_success = false; - if($this->delegate) { - $r = q("select * from channel left join xchan on channel_hash = xchan_hash where xchan_addr = '%s' limit 1", - dbesc($this->delegate) - ); - if ($r && intval($r[0]['channel_id'])) { - $allowed = perm_is_allowed($r[0]['channel_id'],$hubloc['xchan_hash'],'delegate'); - if($allowed) { - $_SESSION['delegate_channel'] = $r[0]['channel_id']; - $_SESSION['delegate'] = $hubloc['xchan_hash']; - $_SESSION['account_id'] = intval($r[0]['channel_account_id']); - require_once('include/security.php'); - change_channel($r[0]['channel_id']); - $this->delegate_success = true; - } - } - } + // legit response, but we do need to check that this wasn't answered by a man-in-middle - $_SESSION['authenticated'] = 1; - if (! $this->delegate_success) { - $_SESSION['visitor_id'] = $hubloc['xchan_hash']; - $_SESSION['my_url'] = $hubloc['xchan_url']; - $_SESSION['my_address'] = $this->address; - $_SESSION['remote_service_class'] = $this->remote_service_class; - $_SESSION['remote_level'] = $this->remote_level; - $_SESSION['remote_hub'] = $this->remote_hub; - $_SESSION['DNT'] = $this->dnt; - } - - $arr = array('xchan' => $hubloc, 'url' => $this->desturl, 'session' => $_SESSION); - call_hooks('magic_auth_success',$arr); - get_app()->set_observer($hubloc); - require_once('include/security.php'); - get_app()->set_groups(init_groups_visitor($_SESSION['visitor_id'])); - info(sprintf( t('Welcome %s. Remote authentication successful.'),$hubloc['xchan_name'])); - logger('mod_zot: auth success from ' . $hubloc['xchan_addr']); - $this->success = true; - return true; + if (! rsa_verify($this->sec . $hubloc['xchan_hash'],base64url_decode($j['confirm']),$hubloc['xchan_pubkey'])) { + logger('final confirmation failed.'); + if($this->test) { + $this->Debug('final confirmation failed. ' . $sec . print_r($j,true) . print_r($hubloc,true)); + return false; } - else { - if($this->test) { - $this->dbg_msg('auth failure. ' . print_r($_REQUEST,true) . print_r($j,true)); - return false; + return false; + } + + if (array_key_exists('service_class',$j)) + $this->remote_service_class = $j['service_class']; + if (array_key_exists('level',$j)) + $this->remote_level = $j['level']; + if (array_key_exists('DNT',$j)) + $this->dnt = $j['DNT']; + + + // log them in + + if ($this->test) { + // testing only - return the success result + $this->test_results['success'] = true; + $this->Debug('Authentication Success!'); + $this->Finalise(); + } + + $_SESSION['authenticated'] = 1; + + // check for delegation + $this->delegate_success = false; + + if($this->delegate) { + $r = q("select * from channel left join xchan on channel_hash = xchan_hash where xchan_addr = '%s' limit 1", + dbesc($this->delegate) + ); + if ($r && intval($r[0]['channel_id'])) { + $allowed = perm_is_allowed($r[0]['channel_id'],$hubloc['xchan_hash'],'delegate'); + if($allowed) { + $_SESSION['delegate_channel'] = $r[0]['channel_id']; + $_SESSION['delegate'] = $hubloc['xchan_hash']; + $_SESSION['account_id'] = intval($r[0]['channel_account_id']); + require_once('include/security.php'); + // this will set the local_channel authentication in the session + change_channel($r[0]['channel_id']); + $this->delegate_success = true; } - logger('magic-auth failure - not authenticated: ' . $hubloc['xchan_addr']); } + } - if($this->test) { - $this->dbg_msg('auth failure fallthrough ' . print_r($_REQUEST,true) . print_r($j,true)); - return false; - } + if (! $this->delegate_success) { + // normal visitor (remote_channel) login session credentials + $_SESSION['visitor_id'] = $hubloc['xchan_hash']; + $_SESSION['my_url'] = $hubloc['xchan_url']; + $_SESSION['my_address'] = $this->address; + $_SESSION['remote_service_class'] = $this->remote_service_class; + $_SESSION['remote_level'] = $this->remote_level; + $_SESSION['remote_hub'] = $this->remote_hub; + $_SESSION['DNT'] = $this->dnt; } - } + $arr = array('xchan' => $hubloc, 'url' => $this->desturl, 'session' => $_SESSION); + call_hooks('magic_auth_success',$arr); + get_app()->set_observer($hubloc); + require_once('include/security.php'); + get_app()->set_groups(init_groups_visitor($_SESSION['visitor_id'])); + info(sprintf( t('Welcome %s. Remote authentication successful.'),$hubloc['xchan_name'])); + logger('mod_zot: auth success from ' . $hubloc['xchan_addr']); + $this->success = true; + return true; + } - function dbg_msg($msg) { - if($msg) { - if(array_key_exists('message',$this->ret)) - $this->ret['message'] .= $msg; - else - $this->ret['message'] = $msg; - } + function Debug($msg) { + $this->debug_msg .= $msg . EOL; } - function reply_die($msg) { - if($msg) { - if(array_key_exists('message',$this->ret)) - $this->ret['message'] .= $msg; - else - $this->ret['message'] = $msg; + function Finalise() { + + if($this->test) { + $this->test_results['message'] = $this->debug_msg; + json_return_and_die($this->test_results); } - if($this->test) - json_return_and_die($this->ret); goaway($this->desturl); } @@ -276,11 +273,6 @@ class Auth { /** - * @brief HTTP POST entry point for Zot. - * - * Most access to this endpoint is via the post method. - * Here we will pick out the magic auth params which arrive as a get request, - * and the only communications to arrive this way. * * Magic Auth * ========== @@ -298,6 +290,8 @@ class Auth { * * version => the zot revision * * delegate => optional urlencoded webbie of a local channel to invoke delegation rights for * + * * test => (optional 1 or 0 - debugs the authentication exchange and returns a json response instead of redirecting the browser session) + * * When this packet is received, an "auth-check" zot message is sent to $mysite. * (e.g. if $_GET['auth'] is foobar@podunk.edu, a zot packet is sent to the podunk.edu zot endpoint, which is typically /post) * If no information has been recorded about the requesting identity a zot information packet will be retrieved before @@ -313,7 +307,8 @@ class Auth { * "guid":"kgVFf_...", * "guid_sig":"PT9-TApz...", * "url":"http:\/\/podunk.edu", - * "url_sig":"T8Bp7j..." + * "url_sig":"T8Bp7j...", + * "sitekey":"aMtgKTiirXrICP..." * }, * "recipients":{ * { @@ -338,6 +333,7 @@ class Auth { * "confirm":"q0Ysovd1u...", * "service_class":(optional) * "level":(optional) + * "DNT": (optional do-not-track - 1 or 0) * } * \endcode * |