Merge remote-tracking branch 'refs/remotes/rodney757/new_ldap'

Conflicts:
	docs/source/index.rst
	mediagoblin/templates/mediagoblin/auth/login.html

10 files changed, 511 insertions, 0 deletions

diff --git a/docs/source/index.rst b/docs/source/index.rst
index e7fda4ad..75a5b66e 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -61,6 +61,7 @@ Part 2: Core plugin documentation
    plugindocs/basic_auth
    plugindocs/openid
    plugindocs/persona
+   plugindocs/ldap
 
 
 Part 3: Plugin Writer's Guide
diff --git a/docs/source/plugindocs/ldap.rst b/docs/source/plugindocs/ldap.rst
new file mode 100644
index 00000000..3938c0c7
--- /dev/null
+++ b/docs/source/plugindocs/ldap.rst
@@ -0,0 +1,2 @@
+.. include:: ../../../mediagoblin/plugins/ldap/README.rst
+
diff --git a/mediagoblin/plugins/ldap/README.rst b/mediagoblin/plugins/ldap/README.rst
new file mode 100644
index 00000000..ae03b31e
--- /dev/null
+++ b/mediagoblin/plugins/ldap/README.rst
@@ -0,0 +1,49 @@
+=============
+ ldap plugin
+=============
+
+.. Warning::
+   This plugin is not compatible with the other authentication plugins.
+
+This plugin allow your GNU Mediagoblin instance to authenticate against an
+LDAP server.
+
+Set up the ldap plugin
+======================
+
+1. Install the ``python-ldap`` package.
+
+2. Add the following to your MediaGoblin .ini file in the ``[plugins]`` section::
+
+    [[mediagoblin.plugins.ldap]]
+
+Configuring the ldap plugin
+===========================
+
+This plugin allows you to use multiple ldap servers for authentication.
+
+In order to configure a server, add the following to you MediaGoblin .ini file
+under the ldap plugin:: 
+
+    [[mediagoblin.plugins.ldap]]
+    [[[server1]]]
+    LDAP_SERVER_URI = 'ldap://ldap.testathon.net:389'
+    LDAP_USER_DN_TEMPLATE = 'cn={username},ou=users,dc=testathon,dc=net'
+    [[[server2]]]
+    ...
+
+Make any necessary changes to the above to work with your sever. Make sure
+``{username}`` is where the username should be in LDAP_USER_DN_TEMPLATE.
+   
+If you would like to fetch the users email from the ldap server upon account
+registration, add ``LDAP_SEARCH_BASE = 'ou=users,dc=testathon,dc=net'`` and
+``EMAIL_SEARCH_FIELD = 'mail'`` under you server configuration in your
+MediaGoblin .ini file.
+
+.. Warning::
+   By default, this plugin provides no encryption when communicating with the
+   ldap servers. If you would like to use an SSL connection, change
+   LDAP_SERVER_URI to use ``ldaps://`` and whichever port you use. Default ldap
+   port for SSL connections is 636. If you would like to use a TLS connection,
+   add ``LDAP_START_TLS = 'true'`` under your server configuration in your
+   MediaGoblin .ini file.
diff --git a/mediagoblin/plugins/ldap/__init__.py b/mediagoblin/plugins/ldap/__init__.py
new file mode 100644
index 00000000..4673acee
--- /dev/null
+++ b/mediagoblin/plugins/ldap/__init__.py
@@ -0,0 +1,59 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import os
+
+from mediagoblin.auth.tools import create_basic_user
+from mediagoblin.tools import pluginapi
+
+PLUGIN_DIR = os.path.dirname(__file__)
+
+
+def setup_plugin():
+    config = pluginapi.get_config('mediagoblin.plugins.ldap')
+
+    routes = [
+        ('mediagoblin.plugins.ldap.register',
+         '/auth/ldap/register/',
+         'mediagoblin.plugins.ldap.views:register'),
+        ('mediagoblin.plugins.ldap.login',
+         '/auth/ldap/login/',
+         'mediagoblin.plugins.ldap.views:login')]
+
+    pluginapi.register_routes(routes)
+    pluginapi.register_template_path(os.path.join(PLUGIN_DIR, 'templates'))
+
+    pluginapi.register_template_hooks(
+        {'create_account': 'mediagoblin/plugins/ldap/create_account_link.html'})
+
+
+def create_user(register_form):
+    if 'username' in register_form and 'password' not in register_form:
+        return create_basic_user(register_form)
+
+
+def no_pass_redirect():
+    return 'ldap'
+
+
+def auth():
+    return True
+
+hooks = {
+    'setup': setup_plugin,
+    'authentication': auth,
+    'auth_no_pass_redirect': no_pass_redirect,
+    'auth_create_user': create_user,
+}
diff --git a/mediagoblin/plugins/ldap/forms.py b/mediagoblin/plugins/ldap/forms.py
new file mode 100644
index 00000000..7ec1479e
--- /dev/null
+++ b/mediagoblin/plugins/ldap/forms.py
@@ -0,0 +1,40 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import wtforms
+
+from mediagoblin.tools.translate import lazy_pass_to_ugettext as _
+from mediagoblin.auth.tools import normalize_user_or_email_field
+
+
+class RegisterForm(wtforms.Form):
+    username = wtforms.HiddenField(
+        '',
+        [wtforms.validators.Required(),
+         normalize_user_or_email_field(allow_email=False)])
+    email = wtforms.TextField(
+        _('Email address'),
+        [wtforms.validators.Required(),
+         normalize_user_or_email_field(allow_user=False)])
+
+
+class LoginForm(wtforms.Form):
+    username = wtforms.TextField(
+        _('Username'),
+        [wtforms.validators.Required(),
+         normalize_user_or_email_field()])
+    password = wtforms.PasswordField(
+        _('Password'),
+        [wtforms.validators.Required()])
diff --git a/mediagoblin/plugins/ldap/templates/mediagoblin/plugins/ldap/create_account_link.html b/mediagoblin/plugins/ldap/templates/mediagoblin/plugins/ldap/create_account_link.html
new file mode 100644
index 00000000..947e4ae2
--- /dev/null
+++ b/mediagoblin/plugins/ldap/templates/mediagoblin/plugins/ldap/create_account_link.html
@@ -0,0 +1,25 @@
+{#
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#}
+
+{% block create_account %}
+  {% if allow_registration %}
+    <p>
+      {% trans %}Sign in to create an account!{% endtrans %} 
+    </p>
+  {% endif %}
+{% endblock %}
diff --git a/mediagoblin/plugins/ldap/tools.py b/mediagoblin/plugins/ldap/tools.py
new file mode 100644
index 00000000..1c436792
--- /dev/null
+++ b/mediagoblin/plugins/ldap/tools.py
@@ -0,0 +1,65 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import ldap
+import logging
+
+from mediagoblin.tools import pluginapi
+
+_log = logging.getLogger(__name__)
+
+
+class LDAP(object):
+    def __init__(self):
+        self.ldap_settings = pluginapi.get_config('mediagoblin.plugins.ldap')
+
+    def _connect(self, server):
+        _log.info('Connecting to {0}.'.format(server['LDAP_SERVER_URI']))
+        self.conn = ldap.initialize(server['LDAP_SERVER_URI'])
+
+        if server['LDAP_START_TLS'] == 'true':
+            _log.info('Initiating TLS')
+            self.conn.start_tls_s()
+
+    def _get_email(self, server, username):
+        try:
+            results = self.conn.search_s(server['LDAP_SEARCH_BASE'],
+                                        ldap.SCOPE_SUBTREE, 'uid={0}'
+                                        .format(username),
+                                        [server['EMAIL_SEARCH_FIELD']])
+
+            email = results[0][1][server['EMAIL_SEARCH_FIELD']][0]
+        except KeyError:
+            email = None
+
+        return email
+
+    def login(self, username, password):
+        for k, v in self.ldap_settings.iteritems():
+            try:
+                self._connect(v)
+                user_dn = v['LDAP_USER_DN_TEMPLATE'].format(username=username)
+                self.conn.simple_bind_s(user_dn, password.encode('utf8'))
+                email = self._get_email(v, username)
+                return username, email
+
+            except ldap.LDAPError, e:
+                _log.info(e)
+
+            finally:
+                _log.info('Unbinding {0}.'.format(v['LDAP_SERVER_URI']))
+                self.conn.unbind()
+
+        return False, None
diff --git a/mediagoblin/plugins/ldap/views.py b/mediagoblin/plugins/ldap/views.py
new file mode 100644
index 00000000..aef1bf56
--- /dev/null
+++ b/mediagoblin/plugins/ldap/views.py
@@ -0,0 +1,104 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from mediagoblin import mg_globals, messages
+from mediagoblin.auth.tools import register_user
+from mediagoblin.db.models import User
+from mediagoblin.decorators import allow_registration, auth_enabled
+from mediagoblin.plugins.ldap import forms
+from mediagoblin.plugins.ldap.tools import LDAP
+from mediagoblin.tools.translate import pass_to_ugettext as _
+from mediagoblin.tools.response import redirect, render_to_response
+
+
+@auth_enabled
+def login(request):
+    login_form = forms.LoginForm(request.form)
+
+    login_failed = False
+
+    if request.method == 'POST' and login_form.validate():
+        l = LDAP()
+        username, email = l.login(login_form.username.data,
+                                  login_form.password.data)
+
+        if username:
+            user = User.query.filter_by(
+                username=username).first()
+
+            if user:
+                # set up login in session
+                request.session['user_id'] = unicode(user.id)
+                request.session.save()
+
+                if request.form.get('next'):
+                    return redirect(request, location=request.form['next'])
+                else:
+                    return redirect(request, "index")
+            else:
+                if not mg_globals.app.auth:
+                    messages.add_message(
+                        request,
+                        messages.WARNING,
+                        _('Sorry, authentication is disabled on this '
+                          'instance.'))
+                    return redirect(request, 'index')
+
+                register_form = forms.RegisterForm(username=username,
+                                                   email=email)
+
+                return render_to_response(
+                    request,
+                    'mediagoblin/auth/register.html',
+                    {'register_form': register_form,
+                    'post_url': request.urlgen('mediagoblin.plugins.ldap.register')})
+
+        login_failed = True
+
+    return render_to_response(
+        request,
+        'mediagoblin/auth/login.html',
+        {'login_form': login_form,
+         'next': request.GET.get('next') or request.form.get('next'),
+         'login_failed': login_failed,
+         'post_url': request.urlgen('mediagoblin.plugins.ldap.login'),
+         'allow_registration': mg_globals.app_config["allow_registration"]})
+
+
+@allow_registration
+@auth_enabled
+def register(request):
+    if request.method == 'GET':
+        return redirect(
+            request,
+            'mediagoblin.plugins.ldap.login')
+
+    register_form = forms.RegisterForm(request.form)
+
+    if register_form.validate():
+        user = register_user(request, register_form)
+
+        if user:
+            # redirect the user to their homepage... there will be a
+            # message waiting for them to verify their email
+            return redirect(
+                request, 'mediagoblin.user_pages.user_home',
+                user=user.username)
+
+    return render_to_response(
+        request,
+        'mediagoblin/auth/register.html',
+        {'register_form': register_form,
+         'post_url': request.urlgen('mediagoblin.plugins.ldap.register')})
diff --git a/mediagoblin/tests/auth_configs/ldap_appconfig.ini b/mediagoblin/tests/auth_configs/ldap_appconfig.ini
new file mode 100644
index 00000000..9be37e17
--- /dev/null
+++ b/mediagoblin/tests/auth_configs/ldap_appconfig.ini
@@ -0,0 +1,41 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+[mediagoblin]
+direct_remote_path = /test_static/
+email_sender_address = "notice@mediagoblin.example.org"
+email_debug_mode = true
+
+sql_engine = "sqlite://"
+run_migrations = true
+
+# Celery shouldn't be set up by the application as it's setup via
+# mediagoblin.init.celery.from_celery
+celery_setup_elsewhere = true
+
+[storage:publicstore]
+base_dir = %(here)s/user_dev/media/public
+base_url = /mgoblin_media/
+
+[storage:queuestore]
+base_dir = %(here)s/user_dev/media/queue
+
+[celery]
+CELERY_ALWAYS_EAGER = true
+CELERY_RESULT_DBURI = "sqlite:///%(here)s/user_dev/celery.db"
+BROKER_HOST = "sqlite:///%(here)s/user_dev/kombu.db"
+
+[plugins]
+[[mediagoblin.plugins.ldap]]
diff --git a/mediagoblin/tests/test_ldap.py b/mediagoblin/tests/test_ldap.py
new file mode 100644
index 00000000..2f9a1372
--- /dev/null
+++ b/mediagoblin/tests/test_ldap.py
@@ -0,0 +1,125 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import urlparse
+import pkg_resources
+import pytest
+import mock
+
+from mediagoblin import mg_globals
+from mediagoblin.db.base import Session
+from mediagoblin.tests.tools import get_app
+from mediagoblin.tools import template
+
+pytest.importorskip("ldap")
+
+
+@pytest.fixture()
+def ldap_plugin_app(request):
+    return get_app(
+        request,
+        mgoblin_config=pkg_resources.resource_filename(
+            'mediagoblin.tests.auth_configs',
+            'ldap_appconfig.ini'))
+
+
+def return_value():
+    return u'chris', u'chris@example.com'
+
+
+def test_ldap_plugin(ldap_plugin_app):
+    res = ldap_plugin_app.get('/auth/login/')
+
+    assert urlparse.urlsplit(res.location)[2] == '/auth/ldap/login/'
+
+    res = ldap_plugin_app.get('/auth/register/')
+
+    assert urlparse.urlsplit(res.location)[2] == '/auth/ldap/register/'
+
+    res = ldap_plugin_app.get('/auth/ldap/register/')
+
+    assert urlparse.urlsplit(res.location)[2] == '/auth/ldap/login/'
+
+    template.clear_test_template_context()
+    res = ldap_plugin_app.post(
+        '/auth/ldap/login/', {})
+
+    context = template.TEMPLATE_TEST_CONTEXT['mediagoblin/auth/login.html']
+    form = context['login_form']
+    assert form.username.errors == [u'This field is required.']
+    assert form.password.errors == [u'This field is required.']
+
+    @mock.patch('mediagoblin.plugins.ldap.tools.LDAP.login', mock.Mock(return_value=return_value()))
+    def _test_authentication():
+        template.clear_test_template_context()
+        res = ldap_plugin_app.post(
+            '/auth/ldap/login/',
+            {'username': u'chris',
+             'password': u'toast'})
+
+        context = template.TEMPLATE_TEST_CONTEXT['mediagoblin/auth/register.html']
+        register_form = context['register_form']
+
+        assert register_form.username.data == u'chris'
+        assert register_form.email.data == u'chris@example.com'
+
+        template.clear_test_template_context()
+        res = ldap_plugin_app.post(
+            '/auth/ldap/register/',
+            {'username': u'chris',
+             'email': u'chris@example.com'})
+        res.follow()
+
+        assert urlparse.urlsplit(res.location)[2] == '/u/chris/'
+        assert 'mediagoblin/user_pages/user.html' in template.TEMPLATE_TEST_CONTEXT
+
+        # Try to register with same email and username
+        template.clear_test_template_context()
+        res = ldap_plugin_app.post(
+            '/auth/ldap/register/',
+            {'username': u'chris',
+             'email': u'chris@example.com'})
+
+        context = template.TEMPLATE_TEST_CONTEXT['mediagoblin/auth/register.html']
+        register_form = context['register_form']
+
+        assert register_form.email.errors == [u'Sorry, a user with that email address already exists.']
+        assert register_form.username.errors == [u'Sorry, a user with that name already exists.']
+
+        # Log out
+        ldap_plugin_app.get('/auth/logout/')
+
+        # Get user and detach from session
+        test_user = mg_globals.database.User.find_one({
+            'username': u'chris'})
+        Session.expunge(test_user)
+
+        # Log back in
+        template.clear_test_template_context()
+        res = ldap_plugin_app.post(
+            '/auth/ldap/login/',
+            {'username': u'chris',
+             'password': u'toast'})
+        res.follow()
+
+        assert urlparse.urlsplit(res.location)[2] == '/'
+        assert 'mediagoblin/root.html' in template.TEMPLATE_TEST_CONTEXT
+
+        # Make sure user is in the session
+        context = template.TEMPLATE_TEST_CONTEXT['mediagoblin/root.html']
+        session = context['request'].session
+        assert session['user_id'] == unicode(test_user.id)
+
+    _test_authentication()