after_update :log_update
after_destroy :log_destroy
after_find :convert_serialized_symbols_to_strings
+ before_validation :normalize_collection_uuids
validate :ensure_serialized_attribute_type
- validate :normalize_collection_uuids
validate :ensure_valid_uuids
# Note: This only returns permission links. It does not account for
end
end
+ class AlreadyLockedError < StandardError
+ def http_status
+ 403
+ end
+ end
+
class UnauthorizedError < StandardError
def http_status
401
api_column_map
end
- # Return nil if current user is not allowed to see the list of
- # writers. Otherwise, return a list of user_ and group_uuids with
- # write permission. (If not returning nil, current_user is always in
- # the list because can_manage permission is needed to see the list
- # of writers.)
+ # If current user can manage the object, return an array of uuids of
+ # users and groups that have permission to write the object. The
+ # first two elements are always [self.owner_uuid, current user's
+ # uuid].
+ #
+ # If current user can write but not manage the object, return
+ # [self.owner_uuid, current user's uuid].
+ #
+ # If current user cannot write this object, just return
+ # [self.owner_uuid].
def writable_by
+ return [owner_uuid] if not current_user
unless (owner_uuid == current_user.uuid or
current_user.is_admin or
- current_user.groups_i_can(:manage).index(owner_uuid))
- return nil
+ (current_user.groups_i_can(:manage) & [uuid, owner_uuid]).any?)
+ if ((current_user.groups_i_can(:write) + [current_user.uuid]) &
+ [uuid, owner_uuid]).any?
+ return [owner_uuid, current_user.uuid]
+ else
+ return [owner_uuid]
+ end
end
[owner_uuid, current_user.uuid] + permissions.collect do |p|
if ['can_write', 'can_manage'].index p.name
sql_params += [uuid_list]
end
- if sql_table == "collections" and users_list.any?
- # There is a 'name' link going from a readable group to the collection.
- name_links = "(SELECT head_uuid FROM links WHERE link_class='name' AND tail_uuid IN (#{sanitized_uuid_list}))"
- sql_conds += ["#{sql_table}.uuid IN #{name_links}"]
- end
-
# Link head points to this row, or to the owner of this row (the
# thing to be read)
#
attributes
end
- def has_permission? perm_type, target_uuid
- Link.where(link_class: "permission",
- name: perm_type,
- tail_uuid: uuid,
- head_uuid: target_uuid).any?
- end
-
protected
def ensure_ownership_path_leads_to_user
if new_record? or owner_uuid_changed?
uuid_in_path = {owner_uuid => true, uuid => true}
x = owner_uuid
- while (owner_class = self.class.resource_class_for_uuid(x)) != User
+ while (owner_class = ArvadosModel::resource_class_for_uuid(x)) != User
begin
if x == uuid
# Test for cycles with the new version, not the DB contents
def ensure_owner_uuid_is_permitted
raise PermissionDeniedError if !current_user
+
if new_record? and respond_to? :owner_uuid=
self.owner_uuid ||= current_user.uuid
end
- # Verify permission to write to old owner (unless owner_uuid was
- # nil -- or hasn't changed, in which case the following
- # "permission to write to new owner" block will take care of us)
+
+ if self.owner_uuid.nil?
+ errors.add :owner_uuid, "cannot be nil"
+ raise PermissionDeniedError
+ end
+
+ rsc_class = ArvadosModel::resource_class_for_uuid owner_uuid
+ unless rsc_class == User or rsc_class == Group
+ errors.add :owner_uuid, "must be set to User or Group"
+ raise PermissionDeniedError
+ end
+
+ # Verify "write" permission on old owner
+ # default fail unless one of:
+ # owner_uuid did not change
+ # previous owner_uuid is nil
+ # current user is the old owner
+ # current user is this object
+ # current user can_write old owner
unless !owner_uuid_changed? or
owner_uuid_was.nil? or
current_user.uuid == self.owner_uuid_was or
errors.add :owner_uuid, "cannot be changed without write permission on old owner"
raise PermissionDeniedError
end
- # Verify permission to write to new owner
+
+ # Verify "write" permission on new owner
+ # default fail unless one of:
+ # current_user is this object
+ # current user can_write new owner
unless current_user == self or current_user.can? write: owner_uuid
logger.warn "User #{current_user.uuid} tried to modify #{self.class.to_s} #{uuid} but does not have permission to write new owner_uuid #{owner_uuid}"
errors.add :owner_uuid, "cannot be changed without write permission on new owner"
raise PermissionDeniedError
end
+
+ true
end
def ensure_permission_to_save
end
end
- @@UUID_REGEX = /^[0-9a-z]{5}-([0-9a-z]{5})-[0-9a-z]{15}$/
-
@@prefixes_hash = nil
def self.uuid_prefixes
unless @@prefixes_hash
@@prefixes_hash = {}
+ Rails.application.eager_load!
ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |k|
if k.respond_to?(:uuid_prefix)
@@prefixes_hash[k.uuid_prefix] = k
"_____-#{uuid_prefix}-_______________"
end
+ def self.uuid_regex
+ %r/[a-z0-9]{5}-#{uuid_prefix}-[a-z0-9]{15}/
+ end
+
def ensure_valid_uuids
- specials = [system_user_uuid, 'd41d8cd98f00b204e9800998ecf8427e+0']
+ specials = [system_user_uuid]
foreign_key_attributes.each do |attr|
if new_record? or send (attr + "_changed?")
unless uuid.is_a? String
return nil
end
- if uuid.match /^[0-9a-f]{32}(\+[^,]+)*(,[0-9a-f]{32}(\+[^,]+)*)*$/
- return Collection
- end
resource_class = nil
- Rails.application.eager_load!
- uuid.match @@UUID_REGEX do |re|
+ uuid.match HasUuid::UUID_REGEX do |re|
return uuid_prefixes[re[1]] if uuid_prefixes[re[1]]
end
end
def log_start_state
- @old_etag = etag
- @old_attributes = logged_attributes
+ @old_attributes = Marshal.load(Marshal.dump(attributes))
+ @old_logged_attributes = Marshal.load(Marshal.dump(logged_attributes))
end
def log_change(event_type)
log = Log.new(event_type: event_type).fill_object(self)
yield log
log.save!
- connection.execute "NOTIFY logs, '#{log.id}'"
log_start_state
end
def log_update
log_change('update') do |log|
- log.fill_properties('old', @old_etag, @old_attributes)
+ log.fill_properties('old', etag(@old_attributes), @old_logged_attributes)
log.update_to self
end
end
def log_destroy
log_change('destroy') do |log|
- log.fill_properties('old', @old_etag, @old_attributes)
+ log.fill_properties('old', etag(@old_attributes), @old_logged_attributes)
log.update_to nil
end
end
projects / arvados.git / blobdiff