Merge branch 'release/0.4.0' into production

* release/0.4.0: (25 commits)
  define version number, update changelog
  set database password at the appropriate place
  remove username argument from delete_pgsql_database call
  remove username argument of pgsqltasks.tasks.delete_pgsql_database
  fix documentation issues
  add autogenerated documentation for module members
  make userdbs admin work properly
  add initial migration for userdbs
  add admin and a bit of documentation
  add new incomplete userdbs app
  document addition of mysqltasks and pgsqltasks
  add mysqltasks and pgsqltasks with placeholders for the real tasks
  set default locale to en-us to avoid translated migrations
  add migration for verbose_name and verbose_name_plural in osusers.models.User
  switch to gvacommon.celeryrouters.GvaRouter
  unify routers, add support for mysql and pgsql tasks
  use taskresults app and delete_ldap_group task
  add taskresults app to handle celery task results
  add new task delete_ldap_group
  define celery timezone, restrict celery content to json
  ...

.gitignore

@@ -43,3 +43,4 @@ Desktop.ini
 htmlcov/
 tags
 _build/
+*.mo

docs/changelog.rst

@@ -1,6 +1,19 @@
 Changelog
 =========
 
+* :release:`0.4.0 <2015-01-11>`
+* :feature:`-` add mysqltasks and pgsqltasks
+* :feature:`-` add :py:mod:`userdbs` app to allow management of user databases
+  via :py:mod:`mysqltasks` and :py:mod:`pgsqltasks`
+* :feature:`-` add new app :py:mod:`taskresults` that takes care of handling
+  asynchronous `Celery`_ results
+* :feature:`-` add new task :py:func:`osusers.tasks.delete_ldap_group` (needs
+  gvaldap >= 0.2.0 on the LDAP side)
+* :feature:`-` add a `customer` field to :py:class:`osusers.models.User`
+* :feature:`-` allow empty password input in
+  :py:class:`osusers.admin.UserCreationForm` to allow generated passwords for
+  new users
+
 * :release:`0.3.0 <2014-12-27>`
 * :feature:`-` call create/delete mailbox tasks when saving/deleting mailboxes
 * :support:`-` use celery routers from gvacommon
@@ -23,10 +36,11 @@ Changelog
 * :feature:`-` full test suite for osusers
 * :feature:`-` full test suite for managemails app
 * :feature:`-` full test suite for domains app
-* :feature:`-` `Celery <http://www.celeryproject.com/>`_ integration for ldap
-  synchronization
+* :feature:`-` `Celery`_ integration for ldap synchronization
 
 * :release:`0.1 <2014-05-25>`
 * :feature:`-` initial model code for os users
 * :feature:`-` initial model code for mail address and mailbox management
 * :feature:`-` initial model code for domains
+
+.. _Celery: http://www.celeryproject.org/

docs/code.rst

@@ -0,0 +1,235 @@
+******************
+Code documentation
+******************
+
+.. index:: Django
+
+gva is implemented as `Django`_ project and provides a frontend for
+administrators and customers.
+
+.. _Django: https://www.djangoproject.com/
+
+
+The project module :py:mod:`gnuviechadmin`
+==========================================
+
+.. automodule:: gnuviechadmin
+
+
+:py:mod:`celery <gnuviechadmin.celery>`
+---------------------------------------
+
+.. automodule:: gnuviechadmin.celery
+   :members:
+
+
+:py:mod:`urls <gnuviechadmin.urls>`
+-----------------------------------
+
+.. automodule:: gnuviechadmin.urls
+
+
+:py:mod:`wsgi <gnuviechadmin.wsgi>`
+-----------------------------------
+
+.. automodule:: gnuviechadmin.wsgi
+   :members:
+
+
+:py:mod:`settings <gnuviechadmin.settings>`
+-------------------------------------------
+
+.. automodule:: gnuviechadmin.settings
+
+
+:py:mod:`base <gnuviechadmin.settings.base>`
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. automodule:: gnuviechadmin.settings.base
+   :members:
+
+
+:py:mod:`local <gnuviechadmin.settings.local>`
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. automodule:: gnuviechadmin.settings.local
+
+
+:py:mod:`production <gnuviechadmin.settings.production>`
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. automodule:: gnuviechadmin.settings.production
+
+
+:py:mod:`test <gnuviechadmin.settings.test>`
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. automodule:: gnuviechadmin.settings.test
+
+
+:py:mod:`gvacommon`
+===================
+
+This module is imported from a separate git project via git subtree and
+provides some functionality that is common to all gnuviechadmin subprojects.
+
+.. automodule:: gvacommon
+
+
+:py:mod:`celeryrouters <gvacommon.celeryrouters>`
+-------------------------------------------------
+
+.. automodule:: gvacommon.celeryrouters
+   :members:
+   :undoc-members:
+
+
+:py:mod:`managemails` app
+=========================
+
+.. automodule:: managemails
+
+
+:py:mod:`admin <managemails.admin>`
+-----------------------------------
+
+.. automodule:: managemails.admin
+   :members:
+
+
+:py:mod:`models <managemails.models>`
+-------------------------------------
+
+.. automodule:: managemails.models
+   :members:
+
+
+:py:mod:`mysqltasks` app
+========================
+
+.. automodule:: mysqltasks
+
+
+:py:mod:`tasks <mysqltasks.tasks>`
+----------------------------------
+
+.. automodule:: mysqltasks.tasks
+   :members:
+
+.. autotask:: mysqltasks.tasks.create_mysql_database
+.. autotask:: mysqltasks.tasks.create_mysql_user
+.. autotask:: mysqltasks.tasks.delete_mysql_database
+.. autotask:: mysqltasks.tasks.delete_mysql_user
+.. autotask:: mysqltasks.tasks.set_mysql_userpassword
+
+
+:py:mod:`osusers` app
+=====================
+
+.. automodule:: osusers
+
+
+:py:mod:`admin <osusers.admin>`
+-------------------------------
+
+.. automodule:: osusers.admin
+   :members:
+
+
+:py:mod:`apps <osusers.apps>`
+-----------------------------
+
+.. automodule:: osusers.apps
+   :members:
+
+
+:py:mod:`models <osusers.models>`
+---------------------------------
+
+.. automodule:: osusers.models
+   :members:
+
+
+:py:mod:`tasks <osusers.tasks>`
+-------------------------------
+
+.. automodule:: osusers.tasks
+
+.. autotask:: osusers.tasks.add_ldap_user_to_group
+.. autotask:: osusers.tasks.create_file_mailbox
+.. autotask:: osusers.tasks.create_ldap_group
+.. autotask:: osusers.tasks.create_ldap_user
+.. autotask:: osusers.tasks.delete_file_mail_userdir
+.. autotask:: osusers.tasks.delete_file_mailbox
+.. autotask:: osusers.tasks.delete_file_sftp_userdir
+.. autotask:: osusers.tasks.delete_ldap_group
+.. autotask:: osusers.tasks.delete_ldap_group_if_empty
+.. autotask:: osusers.tasks.delete_ldap_user
+.. autotask:: osusers.tasks.remove_ldap_user_from_group
+.. autotask:: osusers.tasks.setup_file_mail_userdir
+.. autotask:: osusers.tasks.setup_file_sftp_userdir
+
+
+:py:mod:`pgsqltasks` app
+========================
+
+.. automodule:: pgsqltasks
+   :members:
+
+
+:py:mod:`tasks <pgsqltasks.tasks>`
+----------------------------------
+
+.. automodule:: pgsqltasks.tasks
+
+.. autotask:: pgsqltasks.tasks.create_pgsql_database
+.. autotask:: pgsqltasks.tasks.create_pgsql_user
+.. autotask:: pgsqltasks.tasks.delete_pgsql_database
+.. autotask:: pgsqltasks.tasks.delete_pgsql_user
+.. autotask:: pgsqltasks.tasks.set_pgsql_userpassword
+
+
+:py:mod:`taskresults` app
+=========================
+
+.. automodule:: taskresults
+
+:py:mod:`admin <taskresults.admin>`
+-----------------------------------
+
+.. automodule:: taskresults.admin
+
+:py:mod:`management.commands <taskresults.management.commands>`
+---------------------------------------------------------------
+
+.. automodule:: taskresults.management.commands
+
+:py:mod:`fetch_taskresults <taskresult.management.commands.fetch_taskresults>`
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. automodule:: taskresults.management.commands.fetch_taskresults
+
+:py:mod:`models <taskresults.models>`
+-------------------------------------
+
+.. automodule:: taskresults.models
+
+
+:py:mod:`userdbs` app
+=====================
+
+.. automodule:: userdbs
+
+
+:py:mod:`admin <userdbs.admin>`
+-------------------------------
+
+.. automodule:: userdbs.admin
+   :members:
+
+
+:py:mod:`models <userdbs.models>`
+---------------------------------
+
+.. automodule:: userdbs.models
+   :members:

docs/conf.py

@@ -13,13 +13,18 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-#import sys
-#import os
+import sys
+import os
+import django
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-#sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath(os.path.join('..', 'gnuviechadmin')))
+
+os.environ['GVA_SITE_ADMINMAIL'] = 'admin@gva.example.org'
+
+django.setup()
 
 # -- General configuration -----------------------------------------------------
 
@@ -48,16 +53,16 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'gnuviechadmin'
-copyright = u'2014, Jan Dittberner'
+copyright = u'2014, 2015 Jan Dittberner'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = '0.3'
+version = '0.4'
 # The full version, including alpha/beta/rc tags.
-release = '0.3.0'
+release = '0.4.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/index.rst

@@ -14,6 +14,7 @@ Contents:
    install
    deploy
    tests
+   code
    changelog
 
 

gnuviechadmin/gnuviechadmin/settings/base.py

@@ -82,7 +82,7 @@ DATABASES = {
 TIME_ZONE = 'Europe/Berlin'
 
 # See: https://docs.djangoproject.com/en/dev/ref/settings/#language-code
-LANGUAGE_CODE = 'de-de'
+LANGUAGE_CODE = 'en-us'
 
 # See: https://docs.djangoproject.com/en/dev/ref/settings/#site-id
 SITE_ID = 1
@@ -224,9 +224,13 @@ DJANGO_APPS = (
 
 # Apps specific for this project go here.
 LOCAL_APPS = (
+    'taskresults',
+    'mysqltasks',
+    'pgsqltasks',
     'domains',
     'osusers',
     'managemails',
+    'userdbs',
 )
 
 # See: https://docs.djangoproject.com/en/dev/ref/settings/#installed-apps
@@ -279,10 +283,11 @@ CELERY_RESULT_BACKEND = 'amqp'
 CELERY_RESULT_PERSISTENT = True
 CELERY_TASK_RESULT_EXPIRES = None
 CELERY_ROUTES = (
-    'gvacommon.celeryrouters.LdapRouter',
-    'gvacommon.celeryrouters.FileRouter',
+    'gvacommon.celeryrouters.GvaRouter',
 )
-CELERY_ACCEPT_CONTENT = ['pickle', 'yaml', 'json']
+CELERY_TIMEZONE = 'Europe/Berlin'
+CELERY_ENABLE_UTC = True
+CELERY_ACCEPT_CONTENT = ['json']
 CELERY_TASK_SERIALIZER = 'json'
 CELERY_RESULT_SERIALIZER = 'json'
 ########## END CELERY CONFIGURATION

gnuviechadmin/gvacommon/.gitignore

@@ -1,2 +1,3 @@
 .*.swp
 *.pyc
+.ropeproject/

gnuviechadmin/gvacommon/celeryrouters.py

@@ -2,23 +2,14 @@
 from __future__ import unicode_literals
 
 
-class LdapRouter(object):
+class GvaRouter(object):
 
     def route_for_task(self, task, args=None, kwargs=None):
-        if 'ldap' in task:
-            return {'exchange': 'ldap',
+        for route in ['ldap', 'file', 'mysql', 'pgsql']:
+            if route in task:
+                return {
+                    'exchange': route,
                     'exchange_type': 'direct',
-                    'queue': 'ldap'}
+                    'queue': route,
+                }
         return None
-
-
-class FileRouter(object):
-
-    def route_for_task(self, task, args=None, kwargs=None):
-        if 'file' in task:
-            return {'exchange': 'file',
-                    'exchange_type': 'direct',
-                    'queue': 'file'}
-        return None
-
-

gnuviechadmin/managemails/locale/de/LC_MESSAGES/django.po

@@ -0,0 +1,60 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: managemails\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-12-27 22:45+0100\n"
+"PO-Revision-Date: 2014-12-27 22:57+0100\n"
+"Last-Translator: Jan Dittberner <jan@dittberner.info>\n"
+"Language-Team: de <de@li.org>\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 1.6.10\n"
+"X-Poedit-SourceCharset: UTF-8\n"
+
+#: admin.py:14
+msgid "Passwords don't match"
+msgstr "Passwörter stimmen nicht überein"
+
+#: admin.py:21 tests/test_admin.py:37
+msgid "Hash"
+msgstr "Hash-Code"
+
+#: admin.py:44
+msgid "Password"
+msgstr "Passwort"
+
+#: admin.py:46
+msgid "Password (again)"
+msgstr "Passwortwiederholung"
+
+#: admin.py:100
+msgid "Activate"
+msgstr "Aktivieren"
+
+#: admin.py:101
+msgid "Deactivate"
+msgstr "Deaktivieren"
+
+#: models.py:51
+msgid "Mailbox"
+msgstr "Postfach"
+
+#: models.py:52
+msgid "Mailboxes"
+msgstr "Postfächer"
+
+#: models.py:76
+msgid "Mail address"
+msgstr "E-Mailadresse"
+
+#: models.py:77
+msgid "Mail addresses"
+msgstr "E-Mailadressen"

gnuviechadmin/mysqltasks/__init__.py

@@ -0,0 +1,4 @@
+"""
+This module contains :py:mod:`mysqltasks.tasks`.
+
+"""

gnuviechadmin/mysqltasks/models.py

@@ -0,0 +1,4 @@
+"""
+Empty models to make Django accept mysqltasks as an app.
+
+"""

gnuviechadmin/mysqltasks/tasks.py

@@ -0,0 +1,72 @@
+"""
+This module defines Celery_ tasks to manage MySQL users and databases.
+
+"""
+from __future__ import absolute_import
+
+from celery import shared_task
+
+
+@shared_task
+def create_mysql_user(username, password):
+    """
+    This task creates a new MySQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: the created user's name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def set_mysql_userpassword(username, password):
+    """
+    Set a new password for an existing MySQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: True if the password could be set, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def delete_mysql_user(username):
+    """
+    This task deletes an existing MySQL user.
+
+    :param str username: the user name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def create_mysql_database(dbname, username):
+    """
+    This task creates a new MySQL database for the given MySQL user.
+
+    :param str dbname: database name
+    :param str username: the user name of an existing MySQL user
+    :return: the database name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def delete_mysql_database(dbname, username):
+    """
+    This task deletes an existing MySQL database and revokes privileges of the
+    given user on that database.
+
+    :param str dbname: database name
+    :param str username: the user name of an existing MySQL user
+    :return: True if the database has been deleted, False otherwise
+    :rtype: boolean
+
+    """

gnuviechadmin/osusers/__init__.py

@@ -0,0 +1,5 @@
+"""
+This app is for managing operating system users and groups.
+
+"""
+default_app_config = 'osusers.apps.OsusersAppConfig'

gnuviechadmin/osusers/admin.py

@@ -1,3 +1,7 @@
+"""
+This module contains the Django admin classes of the :py:mod:`osusers` app.
+
+"""
 from django import forms
 from django.utils.translation import ugettext as _
 from django.contrib import admin
@@ -10,13 +14,24 @@ from .models import (
 )
 
 PASSWORD_MISMATCH_ERROR = _("Passwords don't match")
+"""
+Error message for non matching passwords.
+"""
 
 
 class AdditionalGroupInline(admin.TabularInline):
+    """
+    Inline for :py:class:`osusers.models.AdditionalGroup` instances.
+
+    """
     model = AdditionalGroup
 
 
 class ShadowInline(admin.TabularInline):
+    """
+    Inline for :py:class:`osusers.models.ShadowInline` instances.
+
+    """
     model = Shadow
     readonly_fields = ['passwd']
     can_delete = False
@@ -24,22 +39,30 @@ class ShadowInline(admin.TabularInline):
 
 class UserCreationForm(forms.ModelForm):
     """
-    A form for creating system users.
+    A form for creating :py:class:`operating system users
+    <osusers.models.User>`.
 
     """
-    password1 = forms.CharField(label=_('Password'),
-                                widget=forms.PasswordInput)
-    password2 = forms.CharField(label=_('Password (again)'),
-                                widget=forms.PasswordInput)
+    password1 = forms.CharField(
+        label=_('Password'), widget=forms.PasswordInput,
+        required=False,
+    )
+    password2 = forms.CharField(
+        label=_('Password (again)'), widget=forms.PasswordInput,
+        required=False,
+    )
 
     class Meta:
         model = User
-        fields = []
+        fields = ['customer']
 
     def clean_password2(self):
         """
         Check that the two password entries match.
 
+        :return: the validated password
+        :rtype: str or None
+
         """
         password1 = self.cleaned_data.get('password1')
         password2 = self.cleaned_data.get('password2')
@@ -51,8 +74,13 @@ class UserCreationForm(forms.ModelForm):
         """
         Save the provided password in hashed format.
 
+        :param boolean commit: whether to save the created user
+        :return: user instance
+        :rtype: :py:class:`osusers.models.User`
+
         """
         user = User.objects.create_user(
+            customer=self.cleaned_data['customer'],
             password=self.cleaned_data['password1'], commit=commit)
         return user
 
@@ -60,10 +88,16 @@ class UserCreationForm(forms.ModelForm):
         """
         No additional groups are created when this form is saved, so this
         method just does nothing.
+
         """
 
 
 class UserAdmin(admin.ModelAdmin):
+    """
+    Admin class for working with :py:class:`operating system users
+    <osusers.models.User>`.
+
+    """
     actions = ['perform_delete_selected']
     add_form = UserCreationForm
     inlines = [AdditionalGroupInline, ShadowInline]
@@ -71,13 +105,20 @@ class UserAdmin(admin.ModelAdmin):
     add_fieldsets = (
         (None, {
             'classes': ('wide',),
-            'fields': ('password1', 'password2')}),
+            'fields': ('customer', 'password1', 'password2')}),
     )
 
     def get_form(self, request, obj=None, **kwargs):
         """
         Use special form during user creation.
 
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`User <osusers.models.User>` instance or
+            None for a new user
+        :param kwargs: keyword arguments to be passed to
+            :py:meth:`django.contrib.admin.ModelAdmin.get_form`
+        :return: form instance
+
         """
         defaults = {}
         if obj is None:
@@ -89,16 +130,47 @@ class UserAdmin(admin.ModelAdmin):
         return super(UserAdmin, self).get_form(request, obj, **defaults)
 
     def get_readonly_fields(self, request, obj=None):
+        """
+        Make sure that uid is not editable for existing users.
+
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`User <osusers.models.User>` instance or
+            None for a new user
+        :return: a list of fields
+        :rtype: list
+
+        """
         if obj:
             return ['uid']
         return []
 
     def perform_delete_selected(self, request, queryset):
+        """
+        Action to delete a list of selected users.
+
+        This action calls the delete method of each selected user in contrast
+        to the default `delete_selected`.
+
+        :param request: the current HTTP request
+        :param queryset: Django ORM queryset representing the selected users
+
+        """
         for user in queryset.all():
             user.delete()
     perform_delete_selected.short_description = _('Delete selected users')
 
     def get_actions(self, request):
+        """
+        Get the available actions for users.
+
+        This overrides the default behavior to remove the default
+        `delete_selected` action.
+
+        :param request: the current HTTP request
+        :return: list of actions
+        :rtype: list
+
+        """
         actions = super(UserAdmin, self).get_actions(request)
         if 'delete_selected' in actions:
             del actions['delete_selected']
@@ -106,19 +178,40 @@ class UserAdmin(admin.ModelAdmin):
 
 
 class GroupAdmin(admin.ModelAdmin):
+    """
+    Admin class for workint with :py:class:`operating system groups
+    <osusers.models.Group>`.
+
+    """
     actions = ['perform_delete_selected']
 
-    def get_inline_instances(self, request, obj=None):
-        if obj is None:
-            return []
-        return super(GroupAdmin, self).get_inline_instances(request, obj)
-
     def perform_delete_selected(self, request, queryset):
+        """
+        Action to delete a list of selected groups.
+
+        This action calls the delete method of each selected group in contrast
+        to the default `delete_selected`.
+
+        :param request: the current HTTP request
+        :param queryset: Django ORM queryset representing the selected groups
+
+        """
         for group in queryset.all():
             group.delete()
     perform_delete_selected.short_description = _('Delete selected groups')
 
     def get_actions(self, request):
+        """
+        Get the available actions for groups.
+
+        This overrides the default behavior to remove the default
+        `delete_selected` action.
+
+        :param request: the current HTTP request
+        :return: list of actions
+        :rtype: list
+
+        """
         actions = super(GroupAdmin, self).get_actions(request)
         if 'delete_selected' in actions:
             del actions['delete_selected']

gnuviechadmin/osusers/apps.py

@@ -0,0 +1,17 @@
+"""
+This module contains the :py:class:`django.apps.AppConfig` instance for the
+:py:mod:`osusers` app.
+
+"""
+from __future__ import unicode_literals
+from django.apps import AppConfig
+from django.utils.translation import ugettext_lazy as _
+
+
+class OsusersAppConfig(AppConfig):
+    """
+    AppConfig for the :py:mod:`osusers` app.
+
+    """
+    name = 'osusers'
+    verbose_name = _('Operating System Users and Groups')

gnuviechadmin/osusers/locale/de/LC_MESSAGES/django.po

@@ -0,0 +1,175 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: osusers\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-12-27 22:46+0100\n"
+"PO-Revision-Date: 2014-12-27 22:54+0100\n"
+"Last-Translator: Jan Dittberner <jan@dittberner.info>\n"
+"Language-Team: de <de@li.org>\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 1.6.10\n"
+"X-Poedit-SourceCharset: UTF-8\n"
+
+#: admin.py:16
+msgid "Passwords don't match"
+msgstr "Passwörter stimmen nicht überein"
+
+#: admin.py:47
+msgid "Password"
+msgstr "Passwort"
+
+#: admin.py:51
+msgid "Password (again)"
+msgstr "Passwortwiederholung"
+
+#: admin.py:160
+msgid "Delete selected users"
+msgstr "Ausgewählte Nutzer löschen"
+
+#: admin.py:201
+msgid "Delete selected groups"
+msgstr "Ausgewählte Gruppen löschen"
+
+#: apps.py:17
+msgid "Operating System Users and Groups"
+msgstr "Betriebssystemnutzer- und Gruppen"
+
+#: models.py:41
+msgid "You can not use a user's primary group."
+msgstr "Sie können nicht die primäre Gruppe des Nutzers verwenden."
+
+#: models.py:71
+msgid "Group name"
+msgstr "Gruppenname"
+
+#: models.py:73
+msgid "Group ID"
+msgstr "Gruppen-ID"
+
+#: models.py:74
+msgid "Description"
+msgstr "Beschreibung"
+
+#: models.py:76
+msgid "Group password"
+msgstr "Gruppenpasswort"
+
+#: models.py:81 models.py:212
+msgid "Group"
+msgstr "Gruppe"
+
+#: models.py:82
+msgid "Groups"
+msgstr "Gruppen"
+
+#: models.py:209
+msgid "User name"
+msgstr "Nutzername"
+
+#: models.py:211
+msgid "User ID"
+msgstr "Nutzer-ID"
+
+#: models.py:213
+msgid "Gecos field"
+msgstr "GECOS-Feld"
+
+#: models.py:214
+msgid "Home directory"
+msgstr "Home-Verzeichnis"
+
+#: models.py:215
+msgid "Login shell"
+msgstr "Loginshell"
+
+#: models.py:221 models.py:335
+msgid "User"
+msgstr "Nutzer"
+
+#: models.py:222
+msgid "Users"
+msgstr "Nutzer"
+
+#: models.py:336
+msgid "Encrypted password"
+msgstr "Verschlüsseltes Passwort"
+
+#: models.py:338
+msgid "Date of last change"
+msgstr "Datum der letzten Änderung"
+
+#: models.py:339
+msgid "This is expressed in days since Jan 1, 1970"
+msgstr "Ausgedrückt als Tage seit dem 1. Januar 1970"
+
+#: models.py:342
+msgid "Minimum age"
+msgstr "Minimales Alter"
+
+#: models.py:343
+msgid "Minimum number of days before the password can be changed"
+msgstr "Minmale Anzahl von Tagen bevor das Passwort geändert werden kann"
+
+#: models.py:347
+msgid "Maximum age"
+msgstr "Maximales Alter"
+
+#: models.py:348
+msgid "Maximum number of days after which the password has to be changed"
+msgstr ""
+"Maximale Anzahl von Tagen, nach denen das Passwort geändert werden muss"
+
+#: models.py:352
+msgid "Grace period"
+msgstr "Duldungsperiode"
+
+#: models.py:353
+msgid "The number of days before the password is going to expire"
+msgstr "Anzahl von Tagen nach denen das Passwort verfällt"
+
+#: models.py:357
+msgid "Inactivity period"
+msgstr "Inaktivitätsperiode"
+
+#: models.py:358
+msgid ""
+"The number of days after the password has expired during which the password "
+"should still be accepted"
+msgstr ""
+"Die Anzahl von Tagen für die ein verfallenes Passwort noch akzeptiert werden "
+"soll"
+
+#: models.py:362
+msgid "Account expiration date"
+msgstr "Kontoverfallsdatum"
+
+#: models.py:363
+msgid ""
+"The date of expiration of the account, expressed as number of days since Jan "
+"1, 1970"
+msgstr "Kontoverfallsdatum in Tagen seit dem 1. Januar 1970"
+
+#: models.py:370
+msgid "Shadow password"
+msgstr "Shadow-Passwort"
+
+#: models.py:371
+msgid "Shadow passwords"
+msgstr "Shadow-Passwörter"
+
+#: models.py:397
+msgid "Additional group"
+msgstr "Weitere Gruppe"
+
+#: models.py:398
+msgid "Additional groups"
+msgstr "Weitere Gruppen"

gnuviechadmin/osusers/migrations/0003_user_customer.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('osusers', '0002_auto_20141226_1456'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='customer',
+            field=models.ForeignKey(default=1, to=settings.AUTH_USER_MODEL),
+            preserve_default=False,
+        ),
+    ]

gnuviechadmin/osusers/migrations/0004_auto_20150104_1751.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('osusers', '0003_user_customer'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='user',
+            options={'verbose_name': 'User', 'verbose_name_plural': 'Users'},
+        ),
+        migrations.AlterField(
+            model_name='shadow',
+            name='user',
+            field=models.OneToOneField(primary_key=True, serialize=False, to='osusers.User', verbose_name='User'),
+            preserve_default=True,
+        ),
+    ]

gnuviechadmin/osusers/models.py

@@ -1,3 +1,7 @@
+"""
+This module defines the database models of operating system users.
+
+"""
 from __future__ import unicode_literals
 
 from datetime import date
@@ -16,13 +20,15 @@ from model_utils.models import TimeStampedModel
 from passlib.hash import sha512_crypt
 from passlib.utils import generate_password
 
+from taskresults.models import TaskResult
+
 from .tasks import (
     add_ldap_user_to_group,
     create_ldap_group,
     create_ldap_user,
     delete_file_mail_userdir,
     delete_file_sftp_userdir,
-    delete_ldap_group_if_empty,
+    delete_ldap_group,
     delete_ldap_user,
     remove_ldap_user_from_group,
     setup_file_mail_userdir,
@@ -30,7 +36,7 @@ from .tasks import (
 )
 
 
-logger = logging.getLogger(__name__)
+_LOGGER = logging.getLogger(__name__)
 
 
 CANNOT_USE_PRIMARY_GROUP_AS_ADDITIONAL = _(
@@ -38,8 +44,19 @@ CANNOT_USE_PRIMARY_GROUP_AS_ADDITIONAL = _(
 
 
 class GroupManager(models.Manager):
+    """
+    Manager class for :py:class:`osusers.models.Group`.
+
+    """
 
     def get_next_gid(self):
+        """
+        Get the next available group id.
+
+        :returns: group id
+        :rtype: int
+
+        """
         q = self.aggregate(models.Max('gid'))
         if q['gid__max'] is None:
             return settings.OSUSER_MINGID
@@ -48,6 +65,10 @@ class GroupManager(models.Manager):
 
 @python_2_unicode_compatible
 class Group(TimeStampedModel, models.Model):
+    """
+    This entity class corresponds to an operating system group.
+
+    """
     groupname = models.CharField(
         _('Group name'), max_length=16, unique=True)
     gid = models.PositiveSmallIntegerField(
@@ -67,34 +88,76 @@ class Group(TimeStampedModel, models.Model):
 
     @transaction.atomic
     def save(self, *args, **kwargs):
+        """
+        Save the group to the database and synchronizes group information to
+        LDAP.
+
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :return: self
+        :rtype: :py:class:`osusers.models.Group`
+
+        """
         super(Group, self).save(*args, **kwargs)
         dn = create_ldap_group.delay(
             self.groupname, self.gid, self.descr).get()
-        logger.info("created LDAP group with dn %s", dn)
+        _LOGGER.info("created LDAP group with dn %s", dn)
         return self
 
     @transaction.atomic
     def delete(self, *args, **kwargs):
-        delete_ldap_group_if_empty.delay(self.groupname).get()
+        """
+        Delete the group from LDAP and the database.
+
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+
+        """
+        TaskResult.objects.create_task_result(
+            delete_ldap_group.delay(self.groupname),
+            'delete_ldap_group'
+        )
         super(Group, self).delete(*args, **kwargs)
 
 
 class UserManager(models.Manager):
+    """
+    Manager class for :py:class:`osusers.models.User`.
+
+    """
 
     def get_next_uid(self):
+        """
+        Get the next available user id.
+
+        :return: user id
+        :rtype: int
+
+        """
         q = self.aggregate(models.Max('uid'))
         if q['uid__max'] is None:
             return settings.OSUSER_MINUID
         return max(settings.OSUSER_MINUID, q['uid__max'] + 1)
 
     def get_next_username(self):
+        """
+        Get the next available user name.
+
+        :return: user name
+        :rtype: str
+
+        """
         count = 1
         usernameformat = "{0}{1:02d}"
         nextuser = usernameformat.format(settings.OSUSER_USERNAME_PREFIX,
                                          count)
         for user in self.values('username').filter(
-            username__startswith=settings.OSUSER_USERNAME_PREFIX).order_by(
-                'username'):
+            username__startswith=settings.OSUSER_USERNAME_PREFIX
+        ).order_by('username'):
             if user['username'] == nextuser:
                 count += 1
                 nextuser = usernameformat.format(
@@ -104,7 +167,26 @@ class UserManager(models.Manager):
         return nextuser
 
     @transaction.atomic
-    def create_user(self, username=None, password=None, commit=False):
+    def create_user(
+        self, customer, username=None, password=None, commit=False
+    ):
+        """
+        Create a new user with a primary group named the same as the user and
+        an initial password.
+
+        If username is None the result of :py:meth:`get_next_username` is used.
+        If password is None a new password will be generated using passlib's
+        :py:func:`generate_password`.
+
+        :param customer: Django User instance this user is associated to
+        :param str username: the username or None
+        :param str password: the password or None
+        :param boolean commit: whether to commit the user data to the database
+            or not
+        :return: new user
+        :rtype: :py:class:`osusers.models.User`
+
+        """
         uid = self.get_next_uid()
         gid = Group.objects.get_next_gid()
         if username is None:
@@ -114,7 +196,7 @@ class UserManager(models.Manager):
         homedir = os.path.join(settings.OSUSER_HOME_BASEPATH, username)
         group = Group.objects.create(groupname=username, gid=gid)
         user = self.create(username=username, group=group, uid=uid,
-                           homedir=homedir,
+                           homedir=homedir, customer=customer,
                            shell=settings.OSUSER_DEFAULT_SHELL)
         user.set_password(password)
         if commit:
@@ -124,6 +206,10 @@ class UserManager(models.Manager):
 
 @python_2_unicode_compatible
 class User(TimeStampedModel, models.Model):
+    """
+    This entity class corresponds to an operating system user.
+
+    """
     username = models.CharField(
         _('User name'), max_length=64, unique=True)
     uid = models.PositiveSmallIntegerField(
@@ -132,6 +218,7 @@ class User(TimeStampedModel, models.Model):
     gecos = models.CharField(_('Gecos field'), max_length=128, blank=True)
     homedir = models.CharField(_('Home directory'), max_length=256)
     shell = models.CharField(_('Login shell'), max_length=64)
+    customer = models.ForeignKey(settings.AUTH_USER_MODEL)
 
     objects = UserManager()
 
@@ -144,6 +231,15 @@ class User(TimeStampedModel, models.Model):
 
     @transaction.atomic
     def set_password(self, password):
+        """
+        Set the password of the user.
+
+        The password is set to the user's
+        :py:class:`Shadow <osusers.models.Shadow>` instance and to LDAP.
+
+        :param str password: the new password
+
+        """
         if hasattr(self, 'shadow'):
             self.shadow.set_password(password)
         else:
@@ -158,23 +254,56 @@ class User(TimeStampedModel, models.Model):
 
     @transaction.atomic
     def save(self, *args, **kwargs):
+        """
+        Save the user to the database, create user directories and synchronize
+        user information to LDAP.
+
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :return: self
+        :rtype: :py:class:`osusers.models.User`
+
+        """
         dn = create_ldap_user.delay(
             self.username, self.uid, self.group.gid, self.gecos,
             self.homedir, self.shell, password=None).get()
-        sftp_dir = setup_file_sftp_userdir.delay(self.username).get()
-        mail_dir = setup_file_mail_userdir.delay(self.username).get()
-        logger.info(
-            "created user %(user)s with LDAP dn %(dn)s, home directory "
-            "%(homedir)s and mail base directory %(maildir)s.", {
+        TaskResult.objects.create_task_result(
+            setup_file_sftp_userdir.delay(self.username),
+            'setup_file_sftp_userdir'
+        )
+        TaskResult.objects.create_task_result(
+            setup_file_mail_userdir.delay(self.username),
+            'setup_file_mail_userdir'
+        )
+        _LOGGER.info(
+            "created user %(user)s with LDAP dn %(dn)s, scheduled home "
+            "directory and mail base directory creation.", {
                 'user': self, 'dn': dn,
-                'homedir': sftp_dir, 'maildir': mail_dir
             })
         return super(User, self).save(*args, **kwargs)
 
     @transaction.atomic
     def delete(self, *args, **kwargs):
-        delete_file_mail_userdir.delay(self.username).get()
-        delete_file_sftp_userdir.delay(self.username).get()
+        """
+        Delete the user and its groups from LDAP and the database and remove
+        the user's directories.
+
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+
+        """
+        TaskResult.objects.create_task_result(
+            delete_file_mail_userdir.delay(self.username),
+            'delete_file_mail_userdir'
+        )
+        TaskResult.objects.create_task_result(
+            delete_file_sftp_userdir.delay(self.username),
+            'delete_file_sftp_userdir'
+        )
         for group in [ag.group for ag in self.additionalgroup_set.all()]:
             remove_ldap_user_from_group.delay(
                 self.username, group.groupname).get()
@@ -184,9 +313,23 @@ class User(TimeStampedModel, models.Model):
 
 
 class ShadowManager(models.Manager):
+    """
+    Manager class for :py:class:`osusers.models.Shadow`.
+
+    """
 
     @transaction.atomic
     def create_shadow(self, user, password):
+        """
+        Create a new shadow instance with typical Linux settings for the given
+        user with the given password.
+
+        :param user: :py:class:`User <osusers.models.User>` instance
+        :param str password: the password
+        :return: new Shadow instance
+        :rtype: :py:class:`osusers.models.Shadow` instance
+
+        """
         changedays = (timezone.now().date() - date(1970, 1, 1)).days
         shadow = self.create(
             user=user, changedays=changedays,
@@ -200,6 +343,11 @@ class ShadowManager(models.Manager):
 
 @python_2_unicode_compatible
 class Shadow(TimeStampedModel, models.Model):
+    """
+    This entity class corresponds to an operating system user's shadow file
+    entry.
+
+    """
     user = models.OneToOneField(User, primary_key=True, verbose_name=_('User'))
     passwd = models.CharField(_('Encrypted password'), max_length=128)
     changedays = models.PositiveSmallIntegerField(
@@ -242,11 +390,21 @@ class Shadow(TimeStampedModel, models.Model):
         return 'for user {0}'.format(self.user)
 
     def set_password(self, password):
+        """
+        Set and encrypt the password.
+
+        :param str password: the password
+        """
         self.passwd = sha512_crypt.encrypt(password)
 
 
 @python_2_unicode_compatible
 class AdditionalGroup(TimeStampedModel, models.Model):
+    """
+    This entity class corresponds to additional group assignments for an
+    :py:class:`operating system user <osusers.models.User>`.
+
+    """
     user = models.ForeignKey(User)
     group = models.ForeignKey(Group)
 
@@ -255,21 +413,48 @@ class AdditionalGroup(TimeStampedModel, models.Model):
         verbose_name = _('Additional group')
         verbose_name_plural = _('Additional groups')
 
+    def __str__(self):
+        return '{0} in {1}'.format(self.user, self.group)
+
     def clean(self):
+        """
+        Ensure that the assigned group is different from the user's primary
+        group.
+
+        """
         if self.user.group == self.group:
             raise ValidationError(CANNOT_USE_PRIMARY_GROUP_AS_ADDITIONAL)
 
     @transaction.atomic
     def save(self, *args, **kwargs):
+        """
+        Persists the group assignment to LDAP and the database.
+
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.save`
+        :return: this instance
+        :rtype: :py:class:`AdditionalGroup <osusers.models.AdditionalGroup>`
+
+        """
         add_ldap_user_to_group.delay(
             self.user.username, self.group.groupname).get()
-        super(AdditionalGroup, self).save(*args, **kwargs)
+        return super(AdditionalGroup, self).save(*args, **kwargs)
 
     @transaction.atomic
     def delete(self, *args, **kwargs):
-        remove_ldap_user_from_group.delay(
-            self.user.username, self.group.groupname).get()
-        super(AdditionalGroup, self).delete(*args, **kwargs)
+        """
+        Delete the group assignment from LDAP and the database.
 
-    def __str__(self):
-        return '{0} in {1}'.format(self.user, self.group)
+        :param args: positional arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+        :param kwargs: keyword arguments to be passed on to
+            :py:meth:`django.db.Model.delete`
+        """
+        TaskResult.objects.create_task_result(
+            remove_ldap_user_from_group.delay(
+                self.user.username, self.group.groupname),
+            'remove_ldap_user_from_group'
+        )
+        super(AdditionalGroup, self).delete(*args, **kwargs)

gnuviechadmin/osusers/tasks.py

@@ -1,3 +1,8 @@
+"""
+This module defines task stubs for the tasks implemented on the Celery
+workers.
+
+"""
 from __future__ import absolute_import
 
 from celery import shared_task
@@ -5,59 +10,194 @@ from celery import shared_task
 
 @shared_task
 def create_ldap_group(groupname, gid, descr):
-    pass
+    """
+    This task creates an :py:class:`LDAP group <ldapentities.models.LdapGroup>`
+    if it does not exist yet.
+
+    If a group with the given name exists its group id and description
+    attributes are updated.
+
+    :param str groupname: the group name
+    :param int gid: the group id
+    :param str descr: description text for the group
+    :return: the distinguished name of the group
+    :rtype: str
+    """
 
 
 @shared_task
 def create_ldap_user(username, uid, gid, gecos, homedir, shell, password):
-    pass
+    """
+    This task creates an :py:class:`LDAP user <ldapentities.models.LdapUser>`
+    if it does not exist yet.
+
+    The task is rejected if the primary group of the user is not defined.
+
+    The user's fields are updated if the user already exists.
+
+    :param str username: the user name
+    :param int uid: the user id
+    :param int gid: the user's primary group's id
+    :param str gecos: the text for the GECOS field
+    :param str homedir: the user's home directory
+    :param str shell: the user's login shell
+    :param str or None password: the clear text password, if :py:const:`None`
+        is passed the password is not touched
+    :raises celery.exceptions.Reject: if the specified primary group does not
+        exist
+    :return: the distinguished name of the user
+    :rtype: str
+
+    """
 
 
 @shared_task
 def add_ldap_user_to_group(username, groupname):
-    pass
+    """
+    This task adds the specified user to the given group.
+
+    This task does nothing if the user is already member of the group.
+
+    :param str username: the user name
+    :param str groupname: the group name
+    :raises celery.exceptions.Retry: if the user does not exist yet,
+        :py:func:`create_ldap_user` should be called before
+    :return: True if the user has been added to the group otherwise False
+    :rtype: boolean
+
+    """
 
 
 @shared_task
 def remove_ldap_user_from_group(username, groupname):
-    pass
+    """
+    This task removes the given user from the given group.
+
+    :param str username: the user name
+    :param str groupname: the group name
+    :return: True if the user has been removed, False otherwise
+    :rtype: boolean
+
+    """
 
 
 @shared_task
 def delete_ldap_user(username):
-    pass
+    """
+    This task deletes the given user.
+
+    :param str username: the user name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
 
 
 @shared_task
 def delete_ldap_group_if_empty(groupname):
-    pass
+    """
+    This task deletes the given group if it is empty.
+
+    :param str groupname: the group name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def delete_ldap_group(groupname):
+    """
+    This taks deletes the given group.
+
+    :param str groupname: the group name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
 
 
 @shared_task
 def setup_file_sftp_userdir(username):
-    pass
+    """
+    This task creates the home directory for an SFTP user if it does not exist
+    yet.
+
+    :param str username: the user name
+    :raises Exception: if the SFTP directory of the user cannot be created
+    :return: the created directory name
+    :rtype: str
+
+    """
 
 
 @shared_task
 def delete_file_sftp_userdir(username):
-    pass
+    """
+    This task recursively deletes the home directory of an SFTP user if it
+    does not exist yet.
+
+    :param str username: the user name
+    :raises Exception: if the SFTP directory of the user cannot be removed
+    :return: the removed directory name
+    :rtype: str
+
+    """
 
 
 @shared_task
 def setup_file_mail_userdir(username):
-    pass
+    """
+    This task creates the mail base directory for a user if it does not exist
+    yet.
+
+    :param str username: the user name
+    :raises Exception: if the mail base directory for the user cannot be
+        created
+    :return: the created directory name
+    :rtype: str
+
+    """
 
 
 @shared_task
 def delete_file_mail_userdir(username):
-    pass
+    """
+    This task recursively deletes the mail base directory for a user if it
+    does not exist yet.
+
+    :param str username: the user name
+    :raises Exception: if the mail base directory of the user cannot be removed
+    :return: the removed directory name
+    :rtype: str
+
+    """
 
 
 @shared_task
 def create_file_mailbox(username, mailboxname):
-    pass
+    """
+    This task creates a new mailbox directory for the given user and mailbox
+    name.
+
+    :param str username: the user name
+    :param str mailboxname: the mailbox name
+    :raises GVAFileException: if the mailbox directory cannot be created
+    :return: the created mailbox directory name
+    :rtype: str
+
+    """
 
 
 @shared_task
 def delete_file_mailbox(username, mailboxname):
-    pass
+    """
+    This task deletes the given mailbox of the given user.
+
+    :param str username: the user name
+    :param str mailboxname: the mailbox name
+    :raises GVAFileException: if the mailbox directory cannot be deleted
+    :return: the deleted mailbox directory name
+    :rtype: str
+
+    """

gnuviechadmin/pgsqltasks/__init__.py

@@ -0,0 +1,4 @@
+"""
+This module contains :py:mod:`pgsqltasks.tasks`.
+
+"""

gnuviechadmin/pgsqltasks/models.py

@@ -0,0 +1,4 @@
+"""
+Empty models to make Django accept pgsqltasks as an app.
+
+"""

gnuviechadmin/pgsqltasks/tasks.py

@@ -0,0 +1,70 @@
+"""
+This module defines Celery_ tasks to manage PostgreSQL users and databases.
+
+"""
+from __future__ import absolute_import
+
+from celery import shared_task
+
+
+@shared_task
+def create_pgsql_user(username, password):
+    """
+    This task creates a new PostgreSQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: the created user's name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def set_pgsql_userpassword(username, password):
+    """
+    Set a new password for an existing PostgreSQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: True if the password could be set, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def delete_pgsql_user(username):
+    """
+    This task deletes an existing PostgreSQL user.
+
+    :param str username: the user name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def create_pgsql_database(dbname, username):
+    """
+    This task creates a new PostgreSQL database for the given PostgreSQL user.
+
+    :param str dbname: database name
+    :param str username: the user name of an existing PostgreSQL user
+    :return: the database name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def delete_pgsql_database(dbname):
+    """
+    This task deletes an existing PostgreSQL database.
+
+    :param str dbname: database name
+    :return: True if the database has been deleted, False otherwise
+    :rtype: boolean
+
+    """

gnuviechadmin/taskresults/__init__.py

@@ -0,0 +1,5 @@
+"""
+This is the taskresults app that is used for storing the results from
+asynchronous Celery_ tasks.
+
+"""

gnuviechadmin/taskresults/admin.py

@@ -0,0 +1,12 @@
+"""
+This module defines the admin interface for the taskresults app.
+
+"""
+from __future__ import absolute_import
+
+from django.contrib import admin
+
+from .models import TaskResult
+
+
+admin.site.register(TaskResult)

gnuviechadmin/taskresults/management/commands/__init__.py

@@ -0,0 +1,4 @@
+"""
+This module defines management commands for the taskresults app.
+
+"""

gnuviechadmin/taskresults/management/commands/fetch_taskresults.py

@@ -0,0 +1,20 @@
+"""
+This model contains the implementation of a management command to fetch the
+results of all `Celery <http://www.celeryproject.org/>`_ tasks that are not
+marked as finished yet.
+
+"""
+from __future__ import unicode_literals
+
+from django.core.management.base import BaseCommand
+
+from taskresults.models import TaskResult
+
+
+class Command(BaseCommand):
+    help = "fetch task results"
+
+    def handle(self, *args, **options):
+        for taskresult in TaskResult.objects.filter(finished=False):
+            taskresult.fetch_result()
+            taskresult.save()

gnuviechadmin/taskresults/migrations/0001_initial.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='TaskResult',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('task_id', models.CharField(max_length=36, verbose_name='Task id')),
+                ('task_name', models.CharField(max_length=64, verbose_name='Task name')),
+                ('result', models.TextField(verbose_name='Task result')),
+                ('finished', models.BooleanField(default=False)),
+                ('state', models.CharField(max_length=16, verbose_name='Task state')),
+            ],
+            options={
+                'verbose_name': 'Task result',
+                'verbose_name_plural': 'Task results',
+            },
+            bases=(models.Model,),
+        ),
+    ]

gnuviechadmin/taskresults/models.py

@@ -0,0 +1,47 @@
+"""
+This model defines the database models to handle Celery AsyncResults.
+
+"""
+from __future__ import unicode_literals
+
+from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
+from django.utils.translation import ugettext as _
+
+from gnuviechadmin.celery import app
+
+
+class TaskResultManager(models.Manager):
+    def create_task_result(self, asyncresult, name):
+        taskresult = self.create(task_id=asyncresult.id, task_name=name)
+        return taskresult
+
+
+@python_2_unicode_compatible
+class TaskResult(models.Model):
+    task_id = models.CharField(_('Task id'), max_length=36)
+    task_name = models.CharField(_('Task name'), max_length=64)
+    result = models.TextField(_('Task result'))
+    finished = models.BooleanField(default=False)
+    state = models.CharField(_('Task state'), max_length=16)
+
+    objects = TaskResultManager()
+
+    class Meta:
+        verbose_name = _('Task result')
+        verbose_name_plural = _('Task results')
+
+    def __str__(self):
+        return "{task_name} ({task_id}): {finished}".format(
+            task_name=self.task_name,
+            task_id=self.task_id,
+            finished=_('yes') if self.finished else _('no')
+        )
+
+    def fetch_result(self):
+        if not self.finished:
+            ar = app.AsyncResult(self.task_id)
+            res = ar.get(no_ack=True, timeout=1)
+            self.result = str(res)
+            self.state = ar.state
+            self.finished = True

gnuviechadmin/userdbs/__init__.py

@@ -0,0 +1,5 @@
+"""
+This app is for managing database users and user databases.
+
+"""
+default_app_config = 'userdbs.apps.UserdbsAppConfig'

gnuviechadmin/userdbs/admin.py

@@ -0,0 +1,279 @@
+"""
+Admin functionality for the :py:mod:`userdbs.models` models.
+
+"""
+from __future__ import absolute_import
+
+from django import forms
+from django.contrib import admin
+from django.utils.translation import ugettext_lazy as _
+
+from .models import (
+    DatabaseUser,
+    UserDatabase,
+)
+
+
+class DatabaseUserCreationForm(forms.ModelForm):
+    """
+    A form for creating :py:class:`database users
+    <userdbs.models.DatabaseUser>`
+
+    """
+
+    class Meta:
+        model = DatabaseUser
+        fields = ['osuser', 'db_type']
+
+    def save(self, commit=True):
+        """
+        Save the database user.
+
+        :param boolean commit: whether to save the created database user
+        :return: database user instance
+        :rtype: :py:class:`userdbs.models.DatabaseUser`
+
+        """
+        dbuser = DatabaseUser.objects.create_database_user(
+            osuser=self.cleaned_data['osuser'],
+            db_type=self.cleaned_data['db_type'], commit=commit)
+        return dbuser
+
+    def save_m2m(self):
+        """
+        Noop.
+
+        """
+
+
+class UserDatabaseCreationForm(forms.ModelForm):
+    """
+    A form for creating :py:class:`user databases
+    <userdbs.models.UserDatabase>`
+
+    """
+
+    class Meta:
+        model = UserDatabase
+        fields = ['db_user']
+
+    def save(self, commit=True):
+        """
+        Save the user database.
+
+        :param boolean commit: whether to save the created user database
+        :return: user database instance
+        :rtype: :py:class:`userdbs.models.UserDatabase`
+
+        """
+        database = UserDatabase.objects.create_userdatabase(
+            db_user=self.cleaned_data['db_user'], commit=commit)
+        return database
+
+    def save_m2m(self):
+        """
+        Noop.
+
+        """
+
+
+class DatabaseUserAdmin(admin.ModelAdmin):
+    """
+    Admin class for working with :py:class:`database users
+    <userdbs.models.DatabaseUser>`
+
+    """
+    actions = ['perform_delete_selected']
+    add_form = DatabaseUserCreationForm
+
+    def get_form(self, request, obj=None, **kwargs):
+        """
+        Use special form for database user creation.
+
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`Database user
+            <userdbs.models.DatabaseUser>` instance or None for a new database
+            user
+        :param kwargs: keyword arguments to be passed to
+            :py:meth:`django.contrib.admin.ModelAdmin.get_form`
+        :return: form instance
+
+        """
+        defaults = {}
+        if obj is None:
+            defaults.update({
+                'form': self.add_form,
+            })
+        defaults.update(kwargs)
+        return super(DatabaseUserAdmin, self).get_form(
+            request, obj, **defaults)
+
+    def get_readonly_fields(self, request, obj=None):
+        """
+        Make sure that osuser, name and db_type are not editable for existing
+        database users.
+
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`Database user
+            <userdbs.models.DatabaseUser>` instance or None for a new database
+            user
+        :return: a list of fields
+        :rtype: list
+
+        """
+        if obj:
+            return ['osuser', 'name', 'db_type']
+        return []
+
+    def save_model(self, request, obj, form, change):
+        """
+        Make sure that the user is created in the target database.
+
+        :param request: the current HTTP request
+        :param obj: a :py:class:`Database user <userdbs.models.DatabaseUser>`
+            instance
+        :param form: the form instance
+        :param boolean change: whether this is a change operation or not
+
+        """
+        if not change:
+            obj.create_in_database()
+        super(DatabaseUserAdmin, self).save_model(request, obj, form, change)
+
+    def perform_delete_selected(self, request, queryset):
+        """
+        Action to delete a list of selected database users.
+
+        This action calls the delete method of each selected database user in
+        contrast to the default `delete_selected`
+
+        :param request: the current HTTP request
+        :param queryset: Django ORM queryset representing the selected database
+            users
+
+        """
+        for dbuser in queryset.all():
+            dbuser.delete()
+    perform_delete_selected.short_description = _(
+        'Delete selected database users')
+
+    def get_actions(self, request):
+        """
+        Get the available actions for database users.
+
+        This overrides the default behavior to remove the default
+        `delete_selected` action.
+
+        :param request: the current HTTP request
+        :return: list of actions
+        :rtype: list
+
+        """
+        actions = super(DatabaseUserAdmin, self).get_actions(request)
+        if 'delete_selected' in actions:
+            del actions['delete_selected']
+        return actions
+
+
+class UserDatabaseAdmin(admin.ModelAdmin):
+    """
+    Admin class for working with :py:class:`user databases
+    <userdbs.models.UserDatabase>`
+
+    """
+    actions = ['perform_delete_selected']
+    add_form = UserDatabaseCreationForm
+
+    def get_form(self, request, obj=None, **kwargs):
+        """
+        Use special form for user database creation.
+
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`User database
+            <userdbs.models.UserDatabase>` instance or None for a new user
+            database
+        :param kwargs: keyword arguments to be passed to
+            :py:meth:`django.contrib.admin.ModelAdmin.get_form`
+        :return: form instance
+
+        """
+        defaults = {}
+        if obj is None:
+            defaults.update({
+                'form': self.add_form,
+            })
+        defaults.update(kwargs)
+        return super(UserDatabaseAdmin, self).get_form(
+            request, obj, **defaults)
+
+    def get_readonly_fields(self, request, obj=None):
+        """
+        Make sure that db_name and db_user are not editable for existing user
+        databases.
+
+        :param request: the current HTTP request
+        :param obj: either a :py:class:`User database
+            <userdbs.models.UserDatabase>` instance or None for a new user
+            database
+        :return: a list of fields
+        :rtype: list
+
+        """
+        if obj:
+            return ['db_name', 'db_user']
+        return []
+
+    def save_model(self, request, obj, form, change):
+        """
+        Make sure that the database is created in the target database server.
+
+        :param request: the current HTTP request
+        :param obj: a :py:class:`Database user <userdbs.models.DatabaseUser>`
+            instance
+        :param form: the form instance
+        :param boolean change: whether this is a change operation or not
+
+        """
+        if not change:
+            obj.create_in_database()
+        super(UserDatabaseAdmin, self).save_model(request, obj, form, change)
+
+    def perform_delete_selected(self, request, queryset):
+        """
+        Action to delete a list of selected user databases.
+
+        This action calls the delete method of each selected user database in
+        contrast to the default `delete_selected`
+
+        :param request: the current HTTP request
+        :param queryset: Django ORM queryset representing the selected user
+            databases
+
+        """
+        for dbuser in queryset.all():
+            dbuser.delete()
+        for database in queryset.all():
+            database.delete()
+    perform_delete_selected.short_description = _(
+        'Delete selected user databases')
+
+    def get_actions(self, request):
+        """
+        Get the available actions for user databases.
+
+        This overrides the default behavior to remove the default
+        `delete_selected` action.
+
+        :param request: the current HTTP request
+        :return: list of actions
+        :rtype: list
+
+        """
+        actions = super(UserDatabaseAdmin, self).get_actions(request)
+        if 'delete_selected' in actions:
+            del actions['delete_selected']
+        return actions
+
+
+admin.site.register(DatabaseUser, DatabaseUserAdmin)
+admin.site.register(UserDatabase, UserDatabaseAdmin)

gnuviechadmin/userdbs/apps.py

@@ -0,0 +1,18 @@
+"""
+This module contains the :py:class:`django.apps.AppConfig` instance for the
+:py:mod:`userdbs` app.
+
+"""
+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+from django.utils.translation import ugettext_lazy as _
+
+
+class UserdbsAppConfig(AppConfig):
+    """
+    AppConfig for the :py:mod:`userdbs` app.
+
+    """
+    name = 'userdbs'
+    verbose_name = _('Database Users and their Databases')

gnuviechadmin/userdbs/migrations/0001_initial.py

@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import django.utils.timezone
+import model_utils.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('osusers', '0004_auto_20150104_1751'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DatabaseUser',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, verbose_name='created', editable=False)),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, verbose_name='modified', editable=False)),
+                ('name', models.CharField(max_length=63, verbose_name='username')),
+                ('db_type', models.PositiveSmallIntegerField(verbose_name='database type', choices=[(0, 'PostgreSQL'), (1, 'MySQL')])),
+                ('osuser', models.ForeignKey(to='osusers.User')),
+            ],
+            options={
+                'verbose_name': 'database user',
+                'verbose_name_plural': 'database users',
+            },
+            bases=(models.Model,),
+        ),
+        migrations.CreateModel(
+            name='UserDatabase',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, verbose_name='created', editable=False)),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, verbose_name='modified', editable=False)),
+                ('db_name', models.CharField(max_length=63, verbose_name='database name')),
+                ('db_user', models.ForeignKey(verbose_name='database user', to='userdbs.DatabaseUser')),
+            ],
+            options={
+                'verbose_name': 'user database',
+                'verbose_name_plural': 'user specific database',
+            },
+            bases=(models.Model,),
+        ),
+        migrations.AlterUniqueTogether(
+            name='userdatabase',
+            unique_together=set([('db_name', 'db_user')]),
+        ),
+        migrations.AlterUniqueTogether(
+            name='databaseuser',
+            unique_together=set([('name', 'db_type')]),
+        ),
+    ]

gnuviechadmin/userdbs/models.py

@@ -0,0 +1,276 @@
+from __future__ import unicode_literals
+
+from django.db import models
+from django.db import transaction
+from django.utils.encoding import python_2_unicode_compatible
+from django.utils.translation import ugettext as _
+
+from model_utils import Choices
+from model_utils.models import TimeStampedModel
+
+from passlib.utils import generate_password
+
+from osusers.models import User as OsUser
+
+from mysqltasks.tasks import (
+    create_mysql_database,
+    create_mysql_user,
+    delete_mysql_database,
+    delete_mysql_user,
+    set_mysql_userpassword,
+)
+from pgsqltasks.tasks import (
+    create_pgsql_database,
+    create_pgsql_user,
+    delete_pgsql_database,
+    delete_pgsql_user,
+    set_pgsql_userpassword,
+)
+
+
+DB_TYPES = Choices(
+    (0, 'pgsql', _('PostgreSQL')),
+    (1, 'mysql', _('MySQL')),
+)
+"""
+Database type choice enumeration.
+"""
+
+
+class DatabaseUserManager(models.Manager):
+    """
+    Default Manager for :py:class:`userdbs.models.DatabaseUser`.
+
+    """
+
+    def _get_next_dbuser_name(self, osuser, db_type):
+        """
+        Get the next available database user name.
+
+        :param osuser: :py:class:`osusers.models.User` instance
+        :param db_type: value from :py:data:`DB_TYPES`
+        :return: database user name
+        :rtype: str
+        """
+        count = 1
+        dbuser_name_format = "{0}db{{0:02d}}".format(osuser.username)
+        nextname = dbuser_name_format.format(count)
+
+        for user in self.values('name').filter(
+            osuser=osuser, db_type=db_type
+        ).order_by('name'):
+            if user['name'] == nextname:
+                count += 1
+                nextname = dbuser_name_format.format(count)
+            else:
+                break
+        return nextname
+
+    @transaction.atomic
+    def create_database_user(
+        self, osuser, db_type, username=None, password=None, commit=True
+    ):
+        """
+        Create a database user of the given type for the given OS user.
+
+        If username or password are not specified they are generated.
+
+        :param osuser: the :py:class:`osusers.models.User` instance
+        :param db_type: value from :py:data:`DB_TYPES`
+        :param str username: database user name
+        :param str password: initial password or None
+        :param boolean commit: whether the user should be persisted
+        :return: :py:class:`userdbs.models.DatabaseUser` instance
+
+        .. note::
+
+           The password is not persisted it is only used to set the password
+           on the database side.
+
+        """
+        if username is None:
+            username = self._get_next_dbuser_name(osuser, db_type)
+        db_user = DatabaseUser(
+            osuser=osuser, db_type=db_type, name=username)
+        if commit:
+            db_user.create_in_database(password=password)
+            db_user.save()
+        return db_user
+
+
+
+@python_2_unicode_compatible
+class DatabaseUser(TimeStampedModel, models.Model):
+    osuser = models.ForeignKey(OsUser)
+    name = models.CharField(
+        _('username'), max_length=63)
+    db_type = models.PositiveSmallIntegerField(
+        _('database type'), choices=DB_TYPES)
+
+    objects = DatabaseUserManager()
+
+    class Meta:
+        unique_together = ['name', 'db_type']
+        verbose_name = _('database user')
+        verbose_name_plural = _('database users')
+
+    def __str__(self):
+        return "%(name)s (%(db_type)s for %(osuser)s)" % {
+            'name': self.name,
+            'db_type': self.get_db_type_display(),
+            'osuser': self.osuser.username,
+        }
+
+    def create_in_database(self, password=None):
+        """
+        Create this user in the target database.
+
+        :param str password: initial password for the database user
+        """
+        if password is None:
+            password = generate_password()
+            # TODO: send GPG encrypted mail with this information
+        if self.db_type == DB_TYPES.pgsql:
+            create_pgsql_user.delay(self.name, password).get()
+        elif self.db_type == DB_TYPES.mysql:
+            create_mysql_user.delay(self.name, password).get()
+        else:
+            raise ValueError('Unknown database type %d' % self.db_type)
+
+    def set_password(self, password):
+        """
+        Set an existing user's password.
+
+        :param str password: new password for the database user
+        """
+        if self.db_type == DB_TYPES.pgsql:
+            set_pgsql_userpassword.delay(self.name, password).get(timeout=5)
+        elif self.db_type == DB_TYPES.mysql:
+            set_mysql_userpassword.delay(self.name, password).get(timeout=5)
+        else:
+            raise ValueError('Unknown database type %d' % self.db_type)
+
+    @transaction.atomic
+    def delete(self, *args, **kwargs):
+        """
+        Delete the database user from the target database and the Django
+        database.
+
+        :param args: positional arguments for
+            :py:meth:`django.db.models.Model.delete`
+        :param kwargs: keyword arguments for
+            :py:meth:`django.db.models.Model.delete`
+
+        """
+        for database in self.userdatabase_set.all():
+            database.delete()
+        if self.db_type == DB_TYPES.pgsql:
+            delete_pgsql_user.delay(self.name).get(propagate=False, timeout=5)
+        elif self.db_type == DB_TYPES.mysql:
+            delete_mysql_user.delay(self.name).get(propagate=False, timeout=5)
+        else:
+            raise ValueError('Unknown database type %d' % self.db_type)
+        super(DatabaseUser, self).delete(*args, **kwargs)
+
+
+class UserDatabaseManager(models.Manager):
+    """
+    Default manager for :py:class:`userdbs.models.UserDatabase` instances.
+
+    """
+
+    def _get_next_dbname(self, db_user):
+        """
+        Get the next available database name for the given database user.
+
+        :param db_user: :py:class:`userdbs.models.DatabaseUser` instance
+        :return: database name
+        :rtype: str
+
+        """
+        count = 1
+        db_name_format = "{0}_{{0:02d}}".format(db_user.name)
+        # first db is named the same as the user
+        nextname = db_user.name
+        for name in self.values('db_name').filter(db_user=db_user).order_by(
+            'db_name'
+        ):
+            if name['db_name'] == nextname:
+                count += 1
+                nextname = db_name_format.format(count)
+            else:
+                break
+        return nextname
+
+    @transaction.atomic
+    def create_userdatabase(self, db_user, db_name=None, commit=True):
+        """
+        Creates a new user database.
+
+        :param db_user: :py:class:`userdbs.models.DatabaseUser` instance
+        :param str db_name: database name
+        :param boolean commit: whether the database should be persisted
+        :return: :py:class:`userdbs.models.UserDatabase` instance
+
+        """
+        if db_name is None:
+            db_name = self._get_next_dbname(db_user)
+        database = UserDatabase(db_user=db_user, db_name=db_name)
+        if commit:
+            database.create_in_database()
+            database.save()
+        return database
+
+
+@python_2_unicode_compatible
+class UserDatabase(TimeStampedModel, models.Model):
+    # MySQL limits to 64, PostgreSQL to 63 characters
+    db_name = models.CharField(
+        _('database name'), max_length=63)
+    db_user = models.ForeignKey(DatabaseUser, verbose_name=_('database user'))
+
+    objects = UserDatabaseManager()
+
+    class Meta:
+        unique_together = ['db_name', 'db_user']
+        verbose_name = _('user database')
+        verbose_name_plural = _('user specific database')
+
+    def __str__(self):
+        return "%(db_name)s (%(db_user)s)" % {
+            'db_name': self.db_name,
+            'db_user': self.db_user,
+        }
+
+    def create_in_database(self):
+        """
+        Create this database (schema) in the target database.
+
+        """
+        # TODO: send GPG encrypted mail with this information
+        if self.db_user.db_type == DB_TYPES.pgsql:
+            create_pgsql_database.delay(self.db_name, self.db_user.name).get()
+        elif self.db_user.db_type == DB_TYPES.mysql:
+            create_mysql_database.delay(self.db_name, self.db_user.name).get()
+        else:
+            raise ValueError('Unknown database type %d' % self.db_type)
+
+    @transaction.atomic
+    def delete(self, *args, **kwargs):
+        """
+        Delete the database (schema) from the target database and the Django
+        database.
+
+        :param args: positional arguments for
+            :py:meth:`django.db.models.Model.delete`
+        :param kwargs: keyword arguments for
+            :py:meth:`django.db.models.Model.delete`
+
+        """
+        if self.db_user.db_type == DB_TYPES.pgsql:
+            delete_pgsql_database.delay(self.db_name).get()
+        elif self.db_user.db_type == DB_TYPES.mysql:
+            delete_mysql_database.delay(self.db_name, self.db_user.name).get()
+        else:
+            raise ValueError('Unknown database type %d' % self.db_type)
+        super(UserDatabase, self).delete(*args, **kwargs)

gnuviechadmin/userdbs/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

gnuviechadmin/userdbs/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.