[WIP] New user can now accept invite and will be made to

register. On succesful register and verfication they
will be added to service and forwarded to dashboard.

Nothing is done yet with the permissions requested in the
invite to the user.

app/main/views/register.py

@@ -15,7 +15,10 @@ from notifications_python_client.errors import HTTPError
 
 from app.main import main
 from app.main.dao import users_dao
-from app.main.forms import RegisterUserForm
+from app.main.forms import (
+    RegisterUserForm,
+    RegisterUserFromInviteForm
+)
 
 from app import user_api_client
 
@@ -27,29 +30,53 @@ def register():
 
     form = RegisterUserForm()
     if form.validate_on_submit():
-        if users_dao.is_email_unique(form.email_address.data):
-            try:
-                user = user_api_client.register_user(form.name.data,
-                                                     form.email_address.data,
-                                                     form.mobile_number.data,
-                                                     form.password.data)
-            except HTTPError as e:
-                if e.status_code == 404:
-                    abort(404)
-                else:
-                    raise e
+        return _do_registration(form)
+    else:
+        return render_template('views/register.html', form=form)
 
-            # TODO possibly there should be some exception handling
-            # for sending sms and email codes.
-            # How do we report to the user there is a problem with
-            # sending codes apart from service unavailable?
-            # at the moment i believe http 500 is fine.
-            users_dao.send_verify_code(user.id, 'sms', user.mobile_number)
-            users_dao.send_verify_code(user.id, 'email', user.email_address)
-            session['expiry_date'] = str(datetime.now() + timedelta(hours=1))
-            session['user_details'] = {"email": user.email_address, "id": user.id}
-            return redirect(url_for('main.verify'))
-        else:
-            flash('There was an error registering your account')
 
-    return render_template('views/register.html', form=form)
+@main.route('/register-from-invite', methods=['GET', 'POST'])
+def register_from_invite():
+
+    form = RegisterUserFromInviteForm()
+    invited_user = session.get('invited_user')
+    if not invited_user:
+        abort(404)
+
+    if form.validate_on_submit():
+        if form.service.data != invited_user['service'] or form.email_address.data != invited_user['email_address']:
+            abort(400)
+        return _do_registration(form)
+
+    form.service.data = invited_user['service']
+    form.email_address.data = invited_user['email_address']
+
+    return render_template('views/register-from-invite.html', form=form)
+
+
+def _do_registration(form, service=None):
+    if users_dao.is_email_unique(form.email_address.data):
+        try:
+            user = user_api_client.register_user(form.name.data,
+                                                 form.email_address.data,
+                                                 form.mobile_number.data,
+                                                 form.password.data)
+
+        except HTTPError as e:
+            if e.status_code == 404:
+                abort(404)
+            else:
+                raise e
+
+        # TODO possibly there should be some exception handling
+        # for sending sms and email codes.
+        # How do we report to the user there is a problem with
+        # sending codes apart from service unavailable?
+        # at the moment i believe http 500 is fine.
+        users_dao.send_verify_code(user.id, 'sms', user.mobile_number)
+        users_dao.send_verify_code(user.id, 'email', user.email_address)
+        session['expiry_date'] = str(datetime.now() + timedelta(hours=1))
+        session['user_details'] = {"email": user.email_address, "id": user.id}
+        return redirect(url_for('main.verify'))
+    else:
+        flash('There was an error registering your account')