Move back.py to common-web

.gitmodules

-[submodule "auth"]
+[submodule "common"]
 	path = common
 	url = git@git.fsmpi.rwth-aachen.de:protokollsystem/common-web.git

back.py

-# This snippet is in public domain.
-# However, please retain this link in your sources:
-# http://flask.pocoo.org/snippets/120/
-# Danya Alexeyevsky
-
-import functools
-from flask import session, request, redirect as flask_redirect, url_for
-import config
-
-cookie = getattr(config, "REDIRECT_BACK_COOKIE", "back")
-default_view = getattr(config, "REDIRECT_BACK_DEFAULT", "index")
-
-
-def anchor(func, cookie=cookie):
-    @functools.wraps(func)
-    def result(*args, **kwargs):
-        session[cookie] = request.url
-        return func(*args, **kwargs)
-    return result
-
-
-def default_url(default, **url_args):
-    return url_for(default, **url_args)
-
-
-def url(default=default_view, cookie=cookie, **url_args):
-    return session.get(cookie, default_url(default, **url_args))
-
-
-def redirect(default=default_view, cookie=cookie, **url_args):
-    print(request.url, request.url_rule, default, session.get(cookie))
-    target = url(default, cookie, **url_args)
-    if target == request.url:
-        target = default_url(default, **url_args)
-    return flask_redirect(target)

common @ 3dfc2b71

-Subproject commit f9dbd00f0a1e413e000e42b968de0f6a0a44558f
+Subproject commit 3dfc2b71eb6a7e0746fe8794854f739c3305587b

decorators.py

@@ -6,7 +6,7 @@ from hmac import compare_digest
 from models.database import ALL_MODELS
 from shared import current_user
 from utils import get_csrf_token
-import back
+from common import back
 
 ID_KEY = "id"
 KEY_NOT_PRESENT_MESSAGE = "Missing {}_id."

server.py

@@ -55,7 +55,7 @@ from views.tables import (
     TodosTable, DocumentsTable, DecisionsTable, TodoTable, ErrorTable,
     TodoMailsTable, DefaultMetasTable, DecisionCategoriesTable)
 from legacy import import_old_todos, import_old_protocols, import_old_todomails
-import back
+from common import back
 
 app = Flask(__name__)
 app.config.from_object(config)

shared.py

@@ -5,7 +5,7 @@ import re
 from functools import wraps
 from enum import Enum
 
-import back
+from common import back
 
 import config