remove zot

1 files changed, 0 insertions, 363 deletions

diff --git a/Zotlabs/Zot/Auth.php b/Zotlabs/Zot/Auth.php
deleted file mode 100644
index 6ce2174f7..000000000
--- a/Zotlabs/Zot/Auth.php
+++ /dev/null
@@ -1,363 +0,0 @@
-<?php
-
-namespace Zotlabs\Zot;
-
-use Zotlabs\Lib\Crypto;
-
-class Auth {
-
-	protected $test;
-	protected $test_results;
-	protected $debug_msg;
-
-	protected $address;
-	protected $desturl;
-	protected $sec;
-	protected $version;
-	protected $delegate;
-	protected $success;
-	protected $delegate_success;
-
-	protected $remote;
-	protected $remote_service_class;
-	protected $remote_level;
-	protected $remote_hub;
-	protected $dnt;
-
-	function __construct($req) {
-
-
-		$this->test         = ((array_key_exists('test',$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');
-			$this->Debug('no local channels found.');
-			$this->Finalise();
-		}
-
-		if(strpbrk($this->sec,'.:')) {
-			logger('illegal security context');
-			$this->Debug('illegal security context.');
-			$this->Finalise();
-		}
-
-		$x = $this->GetHublocs($this->address);
-
-		if($x) {
-			foreach($x as $xx) {
-				if($this->Verify($c,$xx))
-					break;
-			}
-		}
-
-		/**
-		 * @FIXME we really want to save the return_url in the session before we
-		 * visit rmagic. This does however prevent a recursion if you visit
-		 * rmagic directly, as it would otherwise send you back here again.
-		 * But z_root() probably isn't where you really want to go.
-		 */
-
-		if(strstr($this->desturl,z_root() . '/rmagic'))
-			goaway(z_root());
-
-		$this->Finalise();
-
-	}
-
-	function GetHublocs($address) {
-
-		// 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)
-		);
-
-		if(! $x) {
-			// finger them if they can't be found.
-			$j = Finger::run($address, null);
-			if ($j['success']) {
-				import_xchan($j);
-				$x = q("select * from hubloc left join xchan on xchan_hash = hubloc_hash 
-					where hubloc_addr = '%s' order by hubloc_id desc",
-					dbesc($address)
-				);
-			}
-		}
-		if(! $x) {
-			logger('mod_zot: auth: unable to finger ' . $address);
-			$this->Debug('no hubloc found for ' . $address . ' and probing failed.');
-			$this->Finalise();
-		}
-
-		return $x;
-	}
-
-
-	function Verify($channel,$hubloc) {
-
-		logger('auth request received from ' . $hubloc['hubloc_addr'] );
-
-		$this->remote               = remote_channel();
-		$this->remote_service_class = '';
-		$this->remote_level         = 0;
-		$this->remote_hub           = $hubloc['hubloc_url'];
-		$this->dnt                  = 0;
-
-		if(! $this->sec) {
-			logger('missing security context.');
-			if($this->test)
-				$this->Debug('missing security context.');
-			return false;
-		}
-
-
-		// check credentials and access
-
-		// If they are already authenticated and haven't changed credentials,
-		// we can save an expensive network round trip and improve performance.
-
-		// Also check that they are coming from the same site as they authenticated with originally.
-
-		$already_authed = (((remote_channel()) && ($hubloc['hubloc_hash'] == remote_channel())
-			&& ($hubloc['hubloc_url'] === $_SESSION['remote_hub'])) ? true : false);
-
-		if($this->delegate && $this->delegate !== $_SESSION['delegate_channel'])
-			$already_authed = false;
-
-		if($already_authed)
-			return true;
-
-		if(local_channel()) {
-
-			// 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.
-
-			if (\App::$channel['channel_hash'] == $hubloc['xchan_hash']) {
-				return true;
-			}
-			else {
-				logger('already authenticated locally as somebody else.');
-				notice( t('Remote authentication blocked. You are logged into this site locally. Please logout and retry.') . EOL);
-				if($this->test) {
-					$this->Debug('already logged in locally with a conflicting identity.');
-					return false;
-				}
-			}
-			return false;
-		}
-
-		// Auth packets MUST use ultra top-secret hush-hush mode - e.g. the entire packet is encrypted using the
-		// site private key
-		// The actual channel sending the packet ($c[0]) is not important, but this provides a
-		// generic zot packet with a sender which can be verified
-
-		$x = q("select site_crypto from site where site_url = '%s' limit 1",
-			dbesc($hubloc['hubloc_url'])
-		);
-
-		$p = zot_build_packet($channel,$type = 'auth_check',
-			array(array('guid' => $hubloc['hubloc_guid'],'guid_sig' => $hubloc['hubloc_guid_sig'])),
-			$hubloc['hubloc_sitekey'], (($x) ? $x[0]['site_crypto'] : ''), $this->sec);
-
-		$this->Debug('auth check packet created using sitekey ' . $hubloc['hubloc_sitekey']);
-		$this->Debug('packet contents: ' . $p);
-
-		$result = zot_zot($hubloc['hubloc_callback'],$p);
-		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;
-		}
-
-		$j = json_decode($result['body'], true);
-		if(! $j) {
-			logger('auth_check json data malformed.');
-			if($this->test)
-				$this->Debug('json malformed: ' . $result['body']);
-			return false;
-		}
-
-		$this->Debug('auth check request returned ' . print_r($j, true));
-
-		if(! $j['success'])
-			return false;
-
-		// legit response, but we do need to check that this wasn't answered by a man-in-middle
-
-		if (! Crypto::verify($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($hubloc,true));
-			return false;
-		}
-
-		if (array_key_exists('service_class',$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 and if all is well, log them in locally with delegation restrictions
-
-		$this->delegate_success = false;
-
-		if($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;
-				}
-			}
-		}
-
-		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);
-		\App::set_observer($hubloc);
-		require_once('include/security.php');
-		\App::set_groups(init_groups_visitor($_SESSION['visitor_id']));
-		info(sprintf( t('Welcome %s. Remote authentication successful.'),$hubloc['xchan_name']));
-		logger('mod_zot: auth success from ' . $hubloc['xchan_addr']);
-		$this->success = true;
-		return true;
-	}
-
-	function Debug($msg) {
-		$this->debug_msg .= $msg . EOL;
-	}
-
-
-	function Finalise() {
-
-		if($this->test) {
-			$this->test_results['message'] = $this->debug_msg;
-			json_return_and_die($this->test_results);
-		}
-
-		goaway($this->desturl);
-	}
-
-}
-
-
-/**
- *
- * Magic Auth
- * ==========
- *
- * So-called "magic auth" takes place by a special exchange. On the site where the "channel to be authenticated" lives (e.g. $mysite),
- * a redirection is made via $mysite/magic to the zot endpoint of the remote site ($remotesite) with special GET parameters.
- *
- * The endpoint is typically  https://$remotesite/post - or whatever was specified as the callback url in prior communications
- * (we will bootstrap an address and fetch a zot info packet if possible where no prior communications exist)
- *
- * Five GET parameters are supplied:
- * * auth => the urlencoded webbie (channel@host.domain) of the channel requesting access
- * * dest => the desired destination URL (urlencoded)
- * * sec  => a random string which is also stored on $mysite for use during the verification phase.
- * * 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
- * continuing.
- *
- * The sender of this packet is an arbitrary/random site channel. The recipients will be a single recipient corresponding
- * to the guid and guid_sig we have associated with the requesting auth identity
- *
- * \code{.json}
- * {
- *   "type":"auth_check",
- *   "sender":{
- *     "guid":"kgVFf_...",
- *     "guid_sig":"PT9-TApz...",
- *     "url":"http:\/\/podunk.edu",
- *     "url_sig":"T8Bp7j...",
- *     "sitekey":"aMtgKTiirXrICP..."
- *   },
- *   "recipients":{
- *     {
- *       "guid":"ZHSqb...",
- *       "guid_sig":"JsAAXi..."
- *     }
- *   }
- *   "callback":"\/post",
- *   "version":1,
- *   "secret":"1eaa661",
- *   "secret_sig":"eKV968b1..."
- * }
- * \endcode
- *
- * auth_check messages MUST use encapsulated encryption. This message is sent to the origination site, which checks the 'secret' to see
- * if it is the same as the 'sec' which it passed originally. It also checks the secret_sig which is the secret signed by the
- * destination channel's private key and base64url encoded. If everything checks out, a json packet is returned:
- *
- * \code{.json}
- * {
- *   "success":1,
- *   "confirm":"q0Ysovd1u...",
- *   "service_class":(optional)
- *   "level":(optional)
- *   "DNT": (optional do-not-track - 1 or 0)
- * }
- * \endcode
- *
- * 'confirm' in this case is the base64url encoded RSA signature of the concatenation of 'secret' with the
- * base64url encoded whirlpool hash of the requestor's guid and guid_sig; signed with the source channel private key.
- * This prevents a man-in-the-middle from inserting a rogue success packet. Upon receipt and successful
- * verification of this packet, the destination site will redirect to the original destination URL and indicate a successful remote login.
- * Service_class can be used by cooperating sites to provide different access rights based on account rights and subscription plans. It is
- * a string whose contents are not defined by protocol. Example: "basic" or "gold".
- *
- * @param[in,out] \App &$a
- */