implement hasUser(localpart), RegisterState add verify{_admin}.php

- fixes

database.php

@@ -1,28 +1,55 @@
 <?php  
 $db_file = dirname(__DIR__)."/db_file.sqlite";
 
+abstract class RegisterState
+{
+	// Sending an E-Mail failed in the first attempt. Will retry later
+	const PendingEmailSend = 0;
+	// User got a mail. We wait for it to verfiy
+	const PendingEmailVerify = 1;
+	// Sending a message to the register room failed on first attempt
+	const PendingAdminSend = 5;
+	// No admin has verified the registration yet
+	const PendingAdminVerify = 6;
+	// Registration failed on first attempt. Will retry
+	const PendingRegistration = 7;
+
+	// in this case we have to reset the password of the user (or should we store it for this case?)
+	const PendingSendRegistrationMail = 8;
+
+	// State to allow persisting in the database although an admin declined it.
+	// Will be removed regularly
+	const RegistrationAccepted = 12;
+	const RegistrationDeclined = 13;
+
+	// User got successfully registered. Will be cleaned up later
+	const AllDone = 100;
+}
+
 // create database file when not existent yet
 if (!file_exists($db_file)) {
- $db = new PDO('sqlite:' . $db_file);
- $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
- $db->exec("CREATE TABLE registrations(
-  id INTEGER PRIMARY KEY AUTOINCREMENT, 
-  first_name TEXT,
-  last_name TEXT,
-  username TEXT,
-  note TEXT,
-  email TEXT,
-  verify_token TEXT,
-  request_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP)"); 
-} 
+	$db = new PDO('sqlite:' . $db_file);
+	$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+	$db->exec("CREATE TABLE registrations(
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		state INT DEFAULT 0,
+		first_name TEXT,
+		last_name TEXT,
+		username TEXT,
+		note TEXT,
+		email TEXT,
+		verify_token TEXT,
+		admin_token TEXT,
+		request_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP)");
+}
 else {
- // establish connection 
- $db = new PDO('sqlite:' . $db_file);
- $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+	// establish connection
+	$db = new PDO('sqlite:' . $db_file);
+	$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 } 
 
 // set writeable when not set already
 if (!is_writable($db_file)) {
- chmod($db_file, 0777); 
+	chmod($db_file, 0777);
 }
 ?>