add notes

notes.md

@@ -0,0 +1,73 @@
+# Wordpress auth
+
+Add the following code to `wp-content/themes/bravada/functions.php`:
+
+```
+function rot_auth( $user, $username, $password ){
+    // Make sure a username and password are present for us to work with
+    if($username == '' || $password == '') return;
+
+	$ch = curl_init();
+	
+	curl_setopt($ch, CURLOPT_URL, 'https://app.rudernlinz.at/wikiauth');
+	curl_setopt($ch, CURLOPT_POST, 1);
+	curl_setopt($ch, CURLOPT_POSTFIELDS, "name=$username&password=$password");
+	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);	
+	
+	// Execute the cURL session and get the response
+	$response = curl_exec($ch);
+	
+	// Check for cURL errors
+	if(curl_errno($ch)){
+        	$user = new WP_Error( 'denied', __('Curl error: ' . curl_error($ch)) );
+	}
+	
+	// Close the cURL session
+	curl_close($ch);
+
+
+	if (strpos($response, 'SUCC') !== false) {
+        	$user = get_user_by('login', $username);
+        	
+        	if (!$user) {
+        	   // User does not exist, create a new one
+        	   $userdata = array(
+        	       'user_email' => $username,
+        	       'user_login' => $username, 
+        	       'first_name' => $username,
+        	       'last_name' => ''
+        	   );
+        	   $new_user_id = wp_insert_user($userdata);
+
+        	   if (!is_wp_error($new_user_id)) {
+        	       // Load the new user info
+        	       $user = new WP_User($new_user_id);
+        	       
+        	       // Set role based on username
+        	       if ($username == 'Philipp Hofer' || $username == 'Marie Birner') {
+        	           $user->set_role('administrator');
+        	       } else {
+        	           $user->set_role('editor');
+        	       }
+        	   } else {
+        	       // Handle error in user creation
+        	       return $new_user_id;
+        	   }
+        	} else {
+        	}
+	
+	} else {
+        	$user = new WP_Error( 'denied', __("Falscher Benutzername/Passwort. Verwendest du deine Accountdaten vom Ruderassistenten?") );
+	}
+
+
+
+     return $user;
+}
+
+// Comment this line if you wish to fall back on WordPress authentication
+// Useful for times when the external service is offline
+remove_action('authenticate', 'wp_authenticate_username_password', 20);
+
+add_filter( 'authenticate', 'rot_auth', 10, 3 );
+```