added passlib for pasword hashing

development.ini

@@ -15,8 +15,9 @@ pyramid.includes =
     pyramid_debugtoolbar
 
 sqlalchemy.url = sqlite:///%(here)s/ordr2.sqlite
+passlib.config = %(here)s/passlib.ini
 
-auth.secret = 'change me'
+auth.secret = change me
 static_views.cache_max_age = 0
 
 # By default, the toolbar only appears for clients from IP addresses

docs/installation.rst

@@ -57,6 +57,8 @@ Dependencies
 These are the top-level packages that are needed by the webapp and why. They
 rely propably on other packages as well.
 
+passlib[argon2, bcrypt]
+    password hashing library with argon2 and bcrypt support
 
 pyramid
     the framework for the web applicatoin

ordr2/security.py

@@ -1,5 +1,6 @@
 ''' User Authentication and Authorization '''
 
+from passlib.context import CryptContext
 from pyramid.authentication import AuthTktAuthenticationPolicy
 from pyramid.authorization import ACLAuthorizationPolicy
 from pyramid.security import Authenticated, Everyone
@@ -7,6 +8,10 @@ from pyramid.security import Authenticated, Everyone
 from .models import User
 
 
+#: create a crypt context for password hashes, configured in :func:`includeme()`
+passlib_context = CryptContext()
+
+
 class AuthenticationPolicy(AuthTktAuthenticationPolicy):
     ''' How to authenticate users '''
 
@@ -54,6 +59,11 @@ def includeme(config):
     Activate this setup using ``config.include('ordr2.security')``.
     '''
     settings = config.get_settings()
+
+    # configure the passlib context manager for hashing user passwords
+    passlib_context.load_path(settings['passlib.config'])
+
+    # config for authentication and authorization
     authn_policy = AuthenticationPolicy(
         settings['auth.secret'],
         hashalg='sha512',
@@ -61,3 +71,4 @@ def includeme(config):
     config.set_authentication_policy(authn_policy)
     config.set_authorization_policy(ACLAuthorizationPolicy())
     config.add_request_method(get_user, 'user', reify=True)
+

passlib.ini

@@ -0,0 +1,15 @@
+; configuration for the passlib password hashing library
+
+[passlib]
+
+; setup the context to support only argon2 for the moment
+schemes = argon2, bcrypt
+
+; default encryption scheme is argon2
+default = argon2
+
+; flag every encryption method as deprecated except the first one
+deprecated = auto
+
+
+

setup.py

@@ -12,14 +12,15 @@ with open('HISTORY.rst') as history_file:
     history = history_file.read()
 
 requirements = [
+    'passlib[argon2, bcrypt]',
     'pyramid',
     'pyramid_jinja2',
     'pyramid_debugtoolbar',
     'pyramid_tm',
     'SQLAlchemy',
     'transaction',
-    'zope.sqlalchemy',
     'waitress',
+    'zope.sqlalchemy',
 ]
 
 setup_requirements = [