X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fauth.php;h=4c695cc1e3be345320a41debea00297b49cae016;hb=2e8caf7f27197be5f12ea22f4a5e9aae2bb1ee89;hp=5e454745e3879b87848558ef6207de63be2fe746;hpb=c6267a2cd2e3a731f44df9288ced508ad90c4ca3;p=friendica.git

diff --git a/include/auth.php b/include/auth.php
index 5e454745e3..4c695cc1e3 100644
--- a/include/auth.php
+++ b/include/auth.php
@@ -1,93 +1,211 @@
 <?php
 
+
+require_once('include/security.php');
+require_once('include/datetime.php');
+
+function nuke_session() {
+	new_cookie(0); // make sure cookie is deleted on browser close, as a security measure
+
+	unset($_SESSION['authenticated']);
+	unset($_SESSION['uid']);
+	unset($_SESSION['visitor_id']);
+	unset($_SESSION['administrator']);
+	unset($_SESSION['cid']);
+	unset($_SESSION['theme']);
+	unset($_SESSION['mobile-theme']);
+	unset($_SESSION['page_flags']);
+	unset($_SESSION['submanage']);
+	unset($_SESSION['my_url']);
+	unset($_SESSION['my_address']);
+	unset($_SESSION['addr']);
+	unset($_SESSION['return_url']);
+}
+
+
 // login/logout 
 
-if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] == 'login'))) {
-	if($_POST['auth-params'] == 'logout' || $a->module == "logout") {
-		unset($_SESSION['authenticated']);
-		unset($_SESSION['uid']);
-		unset($_SESSION['visitor_id']);
-		unset($_SESSION['administrator']);
-		unset($_SESSION['cid']);
-		$_SESSION['sysmsg'] = "Logged out." . EOL;
-		goaway($a->get_baseurl());
+
+
+
+if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) {
+
+	if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
+	
+		// process logout request
+		call_hooks("logging_out");
+		nuke_session();
+		info( t('Logged out.') . EOL);
+		goaway(z_root());
+	}
+
+	if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) {
+		$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+			intval($_SESSION['visitor_id'])
+		);
+		if(count($r)) {
+			$a->contact = $r[0];
+		}
 	}
+
 	if(x($_SESSION,'uid')) {
-		$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
-			intval($_SESSION['uid']));
-		if($r === NULL || (! count($r))) {
-			goaway($a->get_baseurl());
+
+		// already logged in user returning
+
+		$check = get_config('system','paranoia');
+		// extra paranoia - if the IP changed, log them out
+		if($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
+			logger('Session address changed. Paranoid setting in effect, blocking session. ' 
+				. $_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
+			nuke_session();
+			goaway(z_root());
 		}
-		$a->user = $r[0];
-		if(strlen($a->user['timezone']))
-			date_default_timezone_set($a->user['timezone']);
 
-		$r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
-			intval($_SESSION['uid']));
-		if(count($r)) {
-			$a->cid = $r[0]['id'];
-			$_SESSION['cid'] = $a->cid;
+		$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` 
+		FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
+			intval($_SESSION['uid'])
+		);
+
+		if(! count($r)) {
+			nuke_session();
+			goaway(z_root());
 		}
+
+		// Make sure to refresh the last login time for the user if the user
+		// stays logged in for a long time, e.g. with "Remember Me"
+		$login_refresh = false;
+		if(! x($_SESSION['last_login_date'])) {
+			$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
+		}
+		if( strcmp(datetime_convert('UTC','UTC','now - 12 hours'), $_SESSION['last_login_date']) > 0 ) {
+
+			$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
+			$login_refresh = true;
+		}
+		authenticate_success($r[0], false, false, $login_refresh);
 	}
 }
 else {
-	unset($_SESSION['authenticated']);
-	unset($_SESSION['uid']);
-	unset($_SESSION['visitor_id']);
-	unset($_SESSION['administrator']);
-	unset($_SESSION['cid']);
-	$encrypted = hash('whirlpool',trim($_POST['password']));
-
-	if((x($_POST,'auth-params')) && $_POST['auth-params'] == 'login') {
-		$r = q("SELECT * FROM `user` 
-			WHERE `email` = '%s' AND `password` = '%s' LIMIT 1",
-			dbesc(trim($_POST['login-name'])),
-			dbesc($encrypted));
-		if(($r === false) || (! count($r))) {
-			$_SESSION['sysmsg'] = 'Login failed.' . EOL ;
-			goaway($a->get_baseurl());
+
+	if(isset($_SESSION)) {
+		nuke_session();
+	}
+
+	if((x($_POST,'password')) && strlen($_POST['password']))
+		$encrypted = hash('whirlpool',trim($_POST['password']));
+	else {
+		if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
+		   (x($_POST,'username')) && strlen($_POST['username'])) {
+
+			$noid = get_config('system','no_openid');
+
+			$openid_url = trim((strlen($_POST['openid_url'])?$_POST['openid_url']:$_POST['username']) );
+
+			// validate_url alters the calling parameter
+
+			$temp_string = $openid_url;
+
+			// if it's an email address or doesn't resolve to a URL, fail.
+
+			if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
+				$a = get_app();
+				notice( t('Login failed.') . EOL);
+				goaway(z_root());
+				// NOTREACHED
+			}
+
+			// Otherwise it's probably an openid.
+
+                        try {
+			require_once('library/openid.php');
+			$openid = new LightOpenID;
+			$openid->identity = $openid_url;
+			$_SESSION['openid'] = $openid_url;
+			$a = get_app();
+			$openid->returnUrl = $a->get_baseurl(true) . '/openid'; 
+                        goaway($openid->authUrl());
+                        } catch (Exception $e) {
+                            notice( t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'. t('The error message was:').' '.$e->getMessage());
+                        }
+			// NOTREACHED
+		}
+	}
+
+	if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
+
+		$record = null;
+
+		$addon_auth = array(
+			'username' => trim($_POST['username']), 
+			'password' => trim($_POST['password']),
+			'authenticated' => 0,
+			'user_record' => null
+		);
+
+		/**
+		 *
+		 * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
+		 * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
+		 * and later plugins should not interfere with an earlier one that succeeded.
+		 *
+		 */
+
+		call_hooks('authenticate', $addon_auth);
+
+		if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
+			$record = $addon_auth['user_record'];
+		}
+		else {
+
+			// process normal login request
+
+			$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`  
+				FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' ) 
+				AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
+				dbesc(trim($_POST['username'])),
+				dbesc(trim($_POST['username'])),
+				dbesc($encrypted)
+			);
+			if(count($r))
+				$record = $r[0];
+		}
+
+		if((! $record) || (! count($record))) {
+			logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']); 
+			notice( t('Login failed.') . EOL );
+			goaway(z_root());
   		}
-		$_SESSION['uid'] = $r[0]['uid'];
-		$_SESSION['admin'] = $r[0]['admin'];
-		$_SESSION['authenticated'] = 1;
-		if(x($r[0],'nickname'))
-			$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
-		else
-			$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['uid'];
-
-		$_SESSION['sysmsg'] = "Welcome back " . $r[0]['username'] . EOL;
-		$a->user = $r[0];
-		if(strlen($a->user['timezone']))
-			date_default_timezone_set($a->user['timezone']);
-
-		$r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
-			intval($_SESSION['uid']));
-		if(count($r)) {
-			$a->cid = $r[0]['id'];
-			$_SESSION['cid'] = $a->cid;
+
+		// If the user specified to remember the authentication, then change the cookie
+		// to expire after one year (the default is when the browser is closed).
+		// If the user did not specify to remember, change the cookie to expire when the
+		// browser is closed. The reason this is necessary is because if the user
+		// specifies to remember, then logs out and logs back in without specifying to
+		// remember, the old "remember" cookie may remain and prevent the session from
+		// expiring when the browser is closed.
+		//
+		// It seems like I should be able to test for the old cookie, but for some reason when
+		// I read the lifetime value from session_get_cookie_params(), I always get '0'
+		// (i.e. expire when the browser is closed), even when there's a time expiration
+		// on the cookie
+		if($_POST['remember']) {
+			new_cookie(31449600); // one year
+		}
+		else {
+			new_cookie(0); // 0 means delete on browser exit
 		}
 
+		// if we haven't failed up this point, log them in.
 
+		$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
+		authenticate_success($record, true, true);
 	}
 }
 
-// Returns an array of group id's this contact is a member of.
-// This array will only contain group id's related to the uid of this
-// DFRN contact. They are *not* neccessarily unique across the entire site. 
-
-
-if(! function_exists('init_groups_visitor')) {
-function init_groups_visitor($contact_id) {
-	$groups = array();
-	$r = q("SELECT `gid` FROM `group_member` 
-		WHERE `contact-id` = %d ",
-		intval($contact_id)
-	);
-	if(count($r)) {
-		foreach($r as $rr)
-			$groups[] = $rr['gid'];
-	}
-	return $groups;
-}}
-
+function new_cookie($time) {
+	$old_sid = session_id();
+	session_set_cookie_params("$time");
+	session_regenerate_id(false);
 
+	q("UPDATE session SET sid = '%s' WHERE sid = '%s'", dbesc(session_id()), dbesc($old_sid));
+}