Flesh out some permissions APIs.

auth/permissions.py

@@ -33,6 +33,12 @@ class ReadRepositoryPermission(Permission):
                                                    read_need)
 
 
+class AdministerRepositoryPermission(Permission):
+  def __init__(self, namespace, name):
+    admin_need = _RepositoryNeed(namespace, name, 'admin')
+    super(AdministerRepositoryPermission, self).__init__(admin_need)
+
+
 class UserPermission(Permission):
   def __init__(self, username):
     user_need = UserNeed(username)
@@ -50,7 +56,7 @@ def on_identity_loaded(sender, identity):
     user_object = model.get_user(identity.id)
 
     identity.provides.add(UserNeed(user_object.username))
-    for user in model.get_all_repo_permissions(user_object):
+    for user in model.get_all_user_permissions(user_object):
       grant = _RepositoryNeed(user.repositorypermission.repository.namespace,
                               user.repositorypermission.repository.name,
                               user.repositorypermission.role.name)

data/model.py

@@ -66,10 +66,21 @@ def update_email(user, new_email):
   user.save()
 
 
-def get_all_repo_permissions(user):
-  select = User.select(User, Repository, RepositoryPermission)
-  joined = select.join(RepositoryPermission).join(Repository)
-  return joined.where(User.username == user.username)
+def get_all_user_permissions(user):
+  select = User.select(User, Repository, RepositoryPermission, Role)
+  with_repo = select.join(RepositoryPermission).join(Repository)
+  with_role = with_repo.switch(RepositoryPermission).join(Role)
+  return with_role.where(User.username == user.username)
+
+
+def get_all_repo_users(namespace_name, repository_name):
+  select = RepositoryPermission.select(User.username, Role.name,
+                                       RepositoryPermission)
+  with_user = select.join(User)
+  with_role = with_user.switch(RepositoryPermission).join(Role)
+  with_repo = with_role.switch(RepositoryPermission).join(Repository)
+  return with_repo.where(Repository.namespace == namespace_name,
+                         Repository.name == repository_name)
 
 
 def get_repository(namespace, name):

endpoints/api.py

@@ -8,7 +8,8 @@ from data import model
 from app import app
 from util.names import parse_repository_name
 from auth.permissions import (ReadRepositoryPermission,
-                              ModifyRepositoryPermission)
+                              ModifyRepositoryPermission,
+                              AdministerRepositoryPermission)
 
 
 logger = logging.getLogger(__name__)
@@ -83,7 +84,7 @@ def get_repo_api(namespace, repository):
     return {
       'id': image.image_id,
       'created': image.created,
-      'comment': image.comment
+      'comment': image.comment,
     }
 
   def tag_view(tag):
@@ -93,20 +94,7 @@ def get_repo_api(namespace, repository):
 
     return {
       'name': tag.name,
-      'image': image_view(image)
-    }
-
-  def repo_view(repository, tags = []):
-    tag_dict = {}
-    for tag in tags:
-      tag_dict[tag.name] = tag_view(tag)
-
-    return {
-      'namespace': repository.namespace,
-      'name': repository.name,
-      'description': repository.description,
-      'tags': tag_dict,
-      'can_write': ModifyRepositoryPermission(repository.namespace, repository.name).can()
+      'image': image_view(image),
     }
 
   permission = ReadRepositoryPermission(namespace, repository)
@@ -114,6 +102,46 @@ def get_repo_api(namespace, repository):
     repo = model.get_repository(namespace, repository)
     if repo:
       tags = model.list_repository_tags(namespace, repository)
-      return jsonify(repo_view(repo, tags = tags))
+      tag_dict = {tag.name: tag_view(tag) for tag in tags}
+      can_write = ModifyRepositoryPermission(namespace, repository).can()
+      return jsonify({
+        'namespace': namespace,
+        'name': repository,
+        'description': repo.description,
+        'tags': tag_dict,
+        'can_write': can_write,
+      })
 
-  abort(404)
+    abort(404)  # Not fount
+  abort(403)  # Permission denied
+
+
+@app.route('/api/repository/<path:repository>/permissions/', methods=['GET'])
+@login_required
+@parse_repository_name
+def list_repo_permissions(namespace, repository):
+  permission = AdministerRepositoryPermission(namespace, repository)
+  if permission.can():
+    repo_perms = model.get_all_repo_users(namespace, repository)
+
+    return jsonify({
+      'permissions': {repo_perm.user.username: repo_perm.role.name 
+                      for repo_perm in repo_perms}
+    })
+
+  abort(403)  # Permission denied
+
+@app.route('/api/repository/<path:repository>/permissions/<username>',
+           methods=['PUT'])
+@login_required
+@parse_repository_name
+def change_permissions(namespace, repository, username):
+  permission = AdministerRepositoryPermission(namespace, repository)
+  if permission.can():
+    new_permission = request.get_json()
+
+    return jsonify({
+      'setting_permission_to': [permission_view(repo_perm) for repo_perm in repo_perms]
+    })
+
+  abort(403)  # Permission denied