From: Robert Kaiser <kairo@kairo.at>
Date: Wed, 16 Nov 2016 03:54:45 +0000 (+0100)
Subject: KaiRo bug 392 - Create an interstitial page to confirm the user to log in
X-Git-Url: https://git-public.kairo.at/?p=authserver.git;a=commitdiff_plain;h=b217e836543c89d872c8f692e2557c8c43da468f

KaiRo bug 392 - Create an interstitial page to confirm the user to log in
---

diff --git a/authorize.php b/authorize.php
index 0740e23..114064f 100644
--- a/authorize.php
+++ b/authorize.php
@@ -30,6 +30,14 @@ $para->setAttribute('class', 'warn');
 
 if (!count($errors)) {
   $session = $utils->initSession(); // Read session or create new session and set cookie.
+  if ($session['logged_in'] && (@$_GET['logout'] == 1)) {
+    $result = $db->prepare('UPDATE `auth_sessions` SET `logged_in` = FALSE WHERE `id` = :sessid;');
+    if (!$result->execute(array(':sessid' => $session['id']))) {
+      $utils->log('logout_failure', 'session: '.$session['id']);
+      $errors[] = _('Unexpected error while logging out.');
+    }
+    $session['logged_in'] = 0;
+  }
   if (intval($session['user'])) {
     $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `id` = :userid;');
     $result->execute(array(':userid' => $session['user']));
@@ -41,7 +49,6 @@ if (!count($errors)) {
   else {
     $user = array('id' => 0, 'email' => '');
   }
-  $pagetype = 'default';
   if (is_null($session)) {
     $errors[] = _('The session system is not working. Please <a href="https://www.kairo.at/contact">contact KaiRo.at</a> and tell the team about this.');
   }
@@ -56,8 +63,8 @@ if (!count($errors)) {
       exit();
     }
 
-    // Display an authorization form (unless the scope is email, which we always grant in this system).
     if (empty($_POST) && (@$request->query['scope'] != 'email')) {
+      // Display an authorization form (unless the scope is email, which we handle as a login request below).
       $para = $body->appendElement('p', sprintf(_('Hi %s!'), $user['email']));
       $para->setAttribute('class', 'userwelcome');
 
@@ -70,9 +77,33 @@ if (!count($errors)) {
       $submit = $form->appendInputSubmit(_('no'));
       $submit->setAttribute('name', 'authorized');
     }
+    elseif (empty($_POST) && (@$request->query['scope'] == 'email')) {
+      // Display an interstitial page for a login  when we have email scope (verified email for logging in).
+      $para = $body->appendElement('p', sprintf(_('Sign in to %s using…'), $request->query['client_id'])); // XXX: put domain name from redirect URI on there instead
+      $para->setAttribute('class', 'signinwelcome');
+      $form = $body->appendForm('', 'POST', 'loginauthform');
+      $form->setAttribute('id', 'loginauthform');
+      $form->setAttribute('class', 'loginarea');
+      $form->appendInputRadio('user_email', 'uemail_'.md5($user['email']), $user['email'], $user['email'] == $user['email']);
+      $form->appendLabel('uemail_'.md5($user['email']), $user['email']);
+      $para = $form->appendElement('p');
+      $para->setAttribute('class', 'small otheremaillinks');
+      $link = $para->appendLink('#', _('Add another email address'));
+      $link->setAttribute('id', 'addanotheremail'); // Makes the JS put the right functionality onto the link.
+      $para->appendText(' ');
+      $link = $para->appendLink('#', _('This is not me'));
+      $link->setAttribute('id', 'isnotme'); // Makes the JS put the right functionality onto the link.
+      $authinput = $form->appendInputHidden('authorized', 'yes');
+      $authinput->setAttribute('id', 'isauthorized');
+      $submit = $form->appendInputSubmit(_('Sign in'));
+      $para = $form->appendElement('p');
+      $para->setAttribute('class', 'small');
+      $link = $para->appendLink('#', _('Cancel'));
+      $link->setAttribute('id', 'cancelauth'); // Makes the JS put the right functionality onto the link.
+    }
     else {
       // Handle authorize request, forwarding code in GET parameters if the user has authorized your client.
-      $is_authorized = ((@$_POST['authorized'] === 'yes') || ($request->query['scope'] == 'email'));
+      $is_authorized = (@$_POST['authorized'] === 'yes');
       $server->handleAuthorizeRequest($request, $response, $is_authorized, $user['id']);
       /* For testing only
       if ($is_authorized) {
@@ -92,8 +123,9 @@ if (!count($errors)) {
     $utils->appendLoginForm($body, $session, $user);
     // Save the request in the session so we can get back to fulfilling it.
     $result = $db->prepare('UPDATE `auth_sessions` SET `saved_redirect` = :redir WHERE `id` = :sessid;');
-    if (!$result->execute(array(':redir' => $_SERVER['REQUEST_URI'], ':sessid' => $session['id']))) {
-      $utils->log('redir_save_failure', 'session: '.$session['id'].', redirect: '.$_SERVER['REQUEST_URI']);
+    $saved_request = str_replace('&logout=1', '', $_SERVER['REQUEST_URI']); // Make sure to strip a logout to not get into a loop.
+    if (!$result->execute(array(':redir' => $saved_request, ':sessid' => $session['id']))) {
+      $utils->log('redir_save_failure', 'session: '.$session['id'].', redirect: '.$saved_request);
     }
   }
 }
diff --git a/authsystem.css b/authsystem.css
index b0d16e5..4a273f9 100644
--- a/authsystem.css
+++ b/authsystem.css
@@ -106,7 +106,8 @@ table.border td {
 
 .resetinfo,
 .verifyinfo,
-.newpwdinfo {
+.newpwdinfo,
+.signinwelcome {
   margin: 5px 10px 0; /* IE8 and older do not support rem */
   margin: 0.5rem 1rem 0;
 }
@@ -119,6 +120,24 @@ table.border td {
   background-position: 0 50%;
 }
 
+.signinwelcome {
+  font-size: 1.2em;
+}
+
+.otheremaillinks > a {
+  background-color: #EEEEDD;
+  text-decoration: none;
+  padding: .2em;
+  border-radius: 3px;
+}
+.otheremaillinks > a:link, .otheremaillinks > a:visited { color: #BBBBBB; }
+.otheremaillinks > a:hover, .otheremaillinks > a:active { color: #808080; }
+
+#addanotheremail { /* HACK - not implemented yet */
+  background-color: transparent !important;
+  color: transparent !important;
+}
+
 .small {
   font-size: 0.75em;
 }
diff --git a/authsystem.js b/authsystem.js
index faaf975..dee8142 100644
--- a/authsystem.js
+++ b/authsystem.js
@@ -23,4 +23,23 @@ window.onload = function() {
       loginForm.setAttribute("class", "loginarea");
     }
   }
+  var cancelAuth = document.getElementById("cancelauth");
+  if (cancelAuth) {
+    cancelAuth.onclick = function() {
+      document.getElementById("isauthorized").value = "no";
+      document.getElementById("loginauthform").submit();
+    }
+  }
+  var addAnotherEmail = document.getElementById("addanotheremail");
+  if (addAnotherEmail) {
+    addAnotherEmail.onclick = function() {
+      // Not implemented yet.
+    }
+  }
+  var isNotMe = document.getElementById("isnotme");
+  if (isNotMe) {
+    isNotMe.onclick = function() {
+      location.href = location.href + "&logout=1";
+    }
+  }
 }
diff --git a/index.php b/index.php
index ac22847..23a045d 100644
--- a/index.php
+++ b/index.php
@@ -40,7 +40,7 @@ if (!count($errors)) {
     $result = $db->prepare('UPDATE `auth_sessions` SET `logged_in` = FALSE WHERE `id` = :sessid;');
     if (!$result->execute(array(':sessid' => $session['id']))) {
       $utils->log('logout_failure', 'session: '.$session['id']);
-      $errors[] = _('The email address is invalid.');
+      $errors[] = _('Unexpected error while logging out.');
     }
     $session['logged_in'] = 0;
   }