Add key download view, permission, link and test.

mayan/apps/django_gpg/apps.py

@@ -13,11 +13,12 @@ from navigation import SourceColumn
 
 from .classes import KeyStub
 from .links import (
-    link_key_delete, link_key_detail, link_key_query, link_key_receive,
+    link_key_delete, link_key_detail, link_key_download, link_key_query,
-    link_key_setup, link_private_keys, link_public_keys
+    link_key_receive, link_key_setup, link_private_keys, link_public_keys
 )
 from .permissions import (
-    permission_key_delete, permission_key_sign, permission_key_view
+    permission_key_delete, permission_key_download, permission_key_sign,
+    permission_key_view
 )
 
 
@@ -35,7 +36,8 @@ class DjangoGPGApp(MayanAppConfig):
         ModelPermission.register(
             model=Key, permissions=(
                 permission_acl_edit, permission_acl_view,
-                permission_key_delete, permission_key_sign, permission_key_view
+                permission_key_delete, permission_key_download,
+                permission_key_sign, permission_key_view
             )
         )
 
@@ -89,7 +91,8 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
         menu_object.bind_links(links=(link_key_receive,), sources=(KeyStub,))
 
         menu_object.bind_links(
-            links=(link_acl_list, link_key_delete,), sources=(Key,)
+            links=(link_acl_list, link_key_delete, link_key_download,),
+            sources=(Key,)
         )
         menu_setup.bind_links(links=(link_key_setup,))
         menu_facet.bind_links(

mayan/apps/django_gpg/links.py

@@ -5,8 +5,8 @@ from django.utils.translation import ugettext_lazy as _
 from navigation import Link
 
 from .permissions import (
-    permission_key_delete, permission_key_receive, permission_key_view,
+    permission_key_delete, permission_key_download, permission_key_receive,
-    permission_keyserver_query
+    permission_key_view, permission_keyserver_query
 )
 
 link_private_keys = Link(
@@ -25,6 +25,10 @@ link_key_detail = Link(
     permissions=(permission_key_view,), text=_('Details'),
     view='django_gpg:key_detail', args=('resolved_object.pk',)
 )
+link_key_download = Link(
+    permissions=(permission_key_download,), text=_('Download'),
+    view='django_gpg:key_download', args=('resolved_object.pk',)
+)
 link_key_query = Link(
     permissions=(permission_keyserver_query,), text=_('Query keyservers'),
     view='django_gpg:key_query'

mayan/apps/django_gpg/permissions.py

@@ -9,6 +9,9 @@ namespace = PermissionNamespace('django_gpg', _('Key management'))
 permission_key_delete = namespace.add_permission(
     name='key_delete', label=_('Delete keys')
 )
+permission_key_download = namespace.add_permission(
+    name='key_download', label=_('Download keys')
+)
 permission_key_receive = namespace.add_permission(
     name='key_receive', label=_('Import keys from keyservers')
 )

mayan/apps/django_gpg/tests/test_views.py

@@ -0,0 +1,50 @@
+from __future__ import absolute_import, unicode_literals
+
+from django.core.files import File
+
+from django_downloadview.test import assert_download_response
+
+from documents.models import Document, DocumentVersion
+from documents.tests.literals import TEST_DOCUMENT_PATH
+from documents.tests.test_views import GenericDocumentViewTestCase
+from user_management.tests import (
+    TEST_USER_USERNAME, TEST_USER_PASSWORD
+)
+
+from ..models import Key
+from ..permissions import permission_key_download
+
+from .literals import (
+    TEST_DETACHED_SIGNATURE, TEST_FILE, TEST_KEY_DATA, TEST_KEY_FINGERPRINT,
+    TEST_KEY_PASSPHRASE, TEST_SEARCH_FINGERPRINT, TEST_SEARCH_UID,
+    TEST_SIGNED_FILE, TEST_SIGNED_FILE_CONTENT
+)
+
+
+class KeyViewTestCase(GenericDocumentViewTestCase):
+    def test_key_download_view_no_permission(self):
+        key = Key.objects.create(key_data=TEST_KEY_DATA)
+
+        self.login(username=TEST_USER_USERNAME, password=TEST_USER_PASSWORD)
+
+        response = self.get(
+            viewname='django_gpg:key_download', args=(key.pk,)
+        )
+
+        self.assertEqual(response.status_code, 403)
+
+    def test_key_download_view_with_permission(self):
+        key = Key.objects.create(key_data=TEST_KEY_DATA)
+
+        self.login(username=TEST_USER_USERNAME, password=TEST_USER_PASSWORD)
+
+        self.role.permissions.add(permission_key_download.stored_permission)
+
+        response = self.get(
+            viewname='django_gpg:key_download', args=(key.pk,)
+        )
+
+        assert_download_response(
+            self, response=response, content=key.key_data,
+            basename=key.key_id,
+        )

mayan/apps/django_gpg/urls.py

@@ -3,8 +3,8 @@ from __future__ import unicode_literals
 from django.conf.urls import patterns, url
 
 from .views import (
-    KeyDeleteView, KeyDetailView, KeyQueryView, KeyQueryResultView, KeyReceive,
+    KeyDeleteView, KeyDetailView, KeyDownloadView, KeyQueryView,
-    PrivateKeyListView, PublicKeyListView
+    KeyQueryResultView, KeyReceive, PrivateKeyListView, PublicKeyListView
 )
 
 urlpatterns = patterns(
@@ -13,7 +13,11 @@ urlpatterns = patterns(
         r'^(?P<pk>\d+)/$', KeyDetailView.as_view(), name='key_detail'
     ),
     url(
-        r'^delete/(?P<pk>\d+)/$', KeyDeleteView.as_view(), name='key_delete'
+        r'^(?P<pk>\d+)/delete/$', KeyDeleteView.as_view(), name='key_delete'
+    ),
+    url(
+        r'^(?P<pk>\d+)/download/$', KeyDownloadView.as_view(),
+        name='key_download'
     ),
     url(
         r'^list/private/$', PrivateKeyListView.as_view(),

mayan/apps/django_gpg/views.py

@@ -3,20 +3,21 @@ from __future__ import absolute_import, unicode_literals
 import logging
 
 from django.contrib import messages
+from django.core.files.base import ContentFile
 from django.core.urlresolvers import reverse, reverse_lazy
 from django.utils.translation import ugettext_lazy as _
 
 from common.generics import (
     ConfirmView, SimpleView, SingleObjectDeleteView, SingleObjectDetailView,
-    SingleObjectListView
+    SingleObjectDownloadView, SingleObjectListView
 )
 
 from .forms import KeyDetailForm, KeySearchForm
 from .literals import KEY_TYPE_PUBLIC
 from .models import Key
 from .permissions import (
-    permission_key_delete, permission_key_receive, permission_key_view,
+    permission_key_delete, permission_key_download, permission_key_receive,
-    permission_keyserver_query
+    permission_key_view, permission_keyserver_query
 )
 
 logger = logging.getLogger(__name__)
@@ -47,6 +48,16 @@ class KeyDetailView(SingleObjectDetailView):
         }
 
 
+class KeyDownloadView(SingleObjectDownloadView):
+    model = Key
+    object_permission = permission_key_download
+
+    def get_file(self):
+        key = self.get_object()
+
+        return ContentFile(key.key_data, name=key.key_id)
+
+
 class KeyReceive(ConfirmView):
     post_action_redirect = reverse_lazy('django_gpg:key_public_list')
     view_permission = permission_key_receive