1 files changed, 83 insertions, 0 deletions
diff --git a/routes/login.php b/routes/login.php
new file mode 100644
index 0000000..2f73271
--- /dev/null
+++ b/routes/login.php
@@ -0,0 +1,83 @@
+<?php
+
+function presentChallenges(
+    Psso\Session $session, Psso\Context $context, ?string $message = null
+) {
+    $challengeTypes = Psso\AuthFlow::nextStep($context);
+    if ($challengeTypes === true) {
+        // auth finished! all good
+        $session->setChallenges(null);
+        $session->setIdentity(
+            new Psso\Identity($context->user, $context->groups)
+        );
+        header('Location: /'); //temporary crap for testing
+        return;
+    }
+    if (count($challengeTypes) == 0) {
+        throw new RuntimeException('no more challenges available!! auth fail');
+    }
+    
+    // create challenges as indicated by the auth flow
+    $challenges = [];
+    foreach ($challengeTypes as $type) {
+        $c = $type::create($context);
+        $challenges[$c->serial] = $c;
+    }
+
+    // send challenges to user
+    $resp = new Psso\XMLResponse;
+    $resp->doc->addAttribute('title', L('login.title'));
+    if (isset($message)) {
+        $resp->doc->addChild('challenge-message', L($message));
+    }
+    foreach ($challenges as $challenge) {
+        $challenge->addAsHtml($resp->doc);
+    }
+    $resp->send();
+
+    // and store the challenges (actual instances!) for next request
+    $session->setChallenges($challenges);
+}
+
+function GET() {
+    $session = Psso\Session::get();
+    if ($session->getIdentity() !== null) {
+        // already logged in
+        header('Location: /'); // change this to return continue page
+    }
+    
+    $context = new Psso\Context;
+    presentChallenges($session, $context);
+}
+
+function POST(array $config) {
+    $session = Psso\Session::get();
+    
+    // we are receiving results of a previous challenge... load it in
+    $challenges = $session->getChallenges();
+    $answeredChallenge = $challenges[$_POST['challenge']];
+    
+    // match up the given input responses to their original Inputs
+    $inputData = [];
+    foreach ($_POST as $name => $value) {
+        if ($name == 'challenge') continue;
+        $serial = explode('__', $name, 2)[1];
+        $input = $answeredChallenge->findInput($serial);
+        $inputData[$input->id] = $value;
+    }
+
+    // check provided inputs against the challenge, are they correct?
+    $providerClass = 'Psso\\AuthProvider\\' . $config['auth']['provider'];
+    $provider = new $providerClass($config);
+    $result = $answeredChallenge->validate($provider, $inputData);
+
+    // append the new result to the context so the auth flow can see it
+    $context = $answeredChallenge->context;
+    $context->addResult($result);
+
+    // also set the user in context if we're able to
+    if ($result->successful && isset($result->user) && !isset($context->user)) {
+        $context->user = $result->user;
+    }
+    presentChallenges($session, $context, $result->message);
+}