self.abstract_class = true
include CurrentApiClient # current_user, current_api_client, etc.
+ include DbCurrentTime
attr_protected :created_at
attr_protected :modified_by_user_uuid
end
end
+ class AlreadyLockedError < StandardError
+ def http_status
+ 403
+ end
+ end
+
class UnauthorizedError < StandardError
def http_status
401
"#{current_api_base}/#{self.class.to_s.pluralize.underscore}/#{self.uuid}"
end
+ def self.selectable_attributes(template=:user)
+ # Return an array of attribute name strings that can be selected
+ # in the given template.
+ api_accessible_attributes(template).map { |attr_spec| attr_spec.first.to_s }
+ end
+
def self.searchable_columns operator
textonly_operator = !operator.match(/[<=>]/)
self.columns.select do |col|
self.columns.select { |col| col.name == attr.to_s }.first
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.)
+ def self.attributes_required_columns
+ # This method returns a hash. Each key is the name of an API attribute,
+ # and it's mapped to a list of database columns that must be fetched
+ # to generate that attribute.
+ # This implementation generates a simple map of attributes to
+ # matching column names. Subclasses can override this method
+ # to specify that method-backed API attributes need to fetch
+ # specific columns from the database.
+ all_columns = columns.map(&:name)
+ api_column_map = Hash.new { |hash, key| hash[key] = [] }
+ methods.grep(/^api_accessible_\w+$/).each do |method_name|
+ next if method_name == :api_accessible_attributes
+ send(method_name).each_pair do |api_attr_name, col_name|
+ col_name = col_name.to_s
+ if all_columns.include?(col_name)
+ api_column_map[api_attr_name.to_s] |= [col_name]
+ end
+ end
+ end
+ api_column_map
+ end
+
+ def self.columns_for_attributes(select_attributes)
+ # Given an array of attribute names to select, return an array of column
+ # names that must be fetched from the database to satisfy the request.
+ api_column_map = attributes_required_columns
+ select_attributes.flat_map { |attr| api_column_map[attr] }.uniq
+ end
+
+ def self.default_orders
+ ["#{table_name}.modified_at desc", "#{table_name}.uuid"]
+ end
+
+ # 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
end
# Check if any of the users are admin. If so, we're done.
- if users_list.select { |u| u.is_admin }.empty?
+ if users_list.select { |u| u.is_admin }.any?
+ return self
+ end
+
+ # Collect the uuids for each user and any groups readable by each user.
+ user_uuids = users_list.map { |u| u.uuid }
+ uuid_list = user_uuids + users_list.flat_map { |u| u.groups_i_can(:read) }
+ sql_conds = []
+ sql_params = []
+ sql_table = kwargs.fetch(:table_name, table_name)
+ or_object_uuid = ''
+
+ # This row is owned by a member of users_list, or owned by a group
+ # readable by a member of users_list
+ # or
+ # This row uuid is the uuid of a member of users_list
+ # or
+ # A permission link exists ('write' and 'manage' implicitly include
+ # 'read') from a member of users_list, or a group readable by users_list,
+ # to this row, or to the owner of this row (see join() below).
+ sql_conds += ["#{sql_table}.uuid in (?)"]
+ sql_params += [user_uuids]
+
+ if uuid_list.any?
+ sql_conds += ["#{sql_table}.owner_uuid in (?)"]
+ sql_params += [uuid_list]
- # Collect the uuids for each user and any groups readable by each user.
- user_uuids = users_list.map { |u| u.uuid }
- uuid_list = user_uuids + users_list.flat_map { |u| u.groups_i_can(:read) }
sanitized_uuid_list = uuid_list.
collect { |uuid| sanitize(uuid) }.join(', ')
- sql_conds = []
- sql_params = []
- sql_table = kwargs.fetch(:table_name, table_name)
- or_object_uuid = ''
-
- # This row is owned by a member of users_list, or owned by a group
- # readable by a member of users_list
- # or
- # This row uuid is the uuid of a member of users_list
- # or
- # A permission link exists ('write' and 'manage' implicitly include
- # 'read') from a member of users_list, or a group readable by users_list,
- # to this row, or to the owner of this row (see join() below).
permitted_uuids = "(SELECT head_uuid FROM links WHERE link_class='permission' AND tail_uuid IN (#{sanitized_uuid_list}))"
+ sql_conds += ["#{sql_table}.uuid IN #{permitted_uuids}"]
+ end
- sql_conds += ["#{sql_table}.owner_uuid in (?)",
- "#{sql_table}.uuid in (?)",
- "#{sql_table}.uuid IN #{permitted_uuids}"]
- sql_params += [uuid_list, user_uuids]
-
- if sql_table == "links" and users_list.any?
- # This row is a 'permission' or 'resources' link class
- # The uuid for a member of users_list is referenced in either the head
- # or tail of the link
- sql_conds += ["(#{sql_table}.link_class in (#{sanitize 'permission'}, #{sanitize 'resources'}) AND (#{sql_table}.head_uuid IN (?) OR #{sql_table}.tail_uuid IN (?)))"]
- sql_params += [user_uuids, user_uuids]
- end
-
- if sql_table == "logs" and users_list.any?
- # Link head points to the object described by this row
- sql_conds += ["#{sql_table}.object_uuid IN #{permitted_uuids}"]
+ if sql_table == "links" and users_list.any?
+ # This row is a 'permission' or 'resources' link class
+ # The uuid for a member of users_list is referenced in either the head
+ # or tail of the link
+ sql_conds += ["(#{sql_table}.link_class in (#{sanitize 'permission'}, #{sanitize 'resources'}) AND (#{sql_table}.head_uuid IN (?) OR #{sql_table}.tail_uuid IN (?)))"]
+ sql_params += [user_uuids, user_uuids]
+ end
- # This object described by this row is owned by this user, or owned by a group readable by this user
- sql_conds += ["#{sql_table}.object_owner_uuid in (?)"]
- sql_params += [uuid_list]
- end
+ if sql_table == "logs" and users_list.any?
+ # Link head points to the object described by this row
+ sql_conds += ["#{sql_table}.object_uuid IN #{permitted_uuids}"]
- # Link head points to this row, or to the owner of this row (the thing to be read)
- #
- # Link tail originates from this user, or a group that is readable by this
- # user (the identity with authorization to read)
- #
- # Link class is 'permission' ('write' and 'manage' implicitly include 'read')
- where(sql_conds.join(' OR '), *sql_params)
- else
- # At least one user is admin, so don't bother to apply any restrictions.
- self
+ # This object described by this row is owned by this user, or owned by a group readable by this user
+ sql_conds += ["#{sql_table}.object_owner_uuid in (?)"]
+ sql_params += [uuid_list]
end
+
+ # Link head points to this row, or to the owner of this row (the
+ # thing to be read)
+ #
+ # Link tail originates from this user, or a group that is readable
+ # by this user (the identity with authorization to read)
+ #
+ # Link class is 'permission' ('write' and 'manage' implicitly
+ # include 'read')
+ where(sql_conds.join(' OR '), *sql_params)
end
def logged_attributes
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?
+ def self.full_text_searchable_columns
+ self.columns.select do |col|
+ if col.type == :string or col.type == :text
+ true
+ end
+ end.map(&:name)
+ end
+
+ def self.full_text_tsvector
+ tsvector_str = "to_tsvector('english', "
+ first = true
+ self.full_text_searchable_columns.each do |column|
+ tsvector_str += " || ' ' || " if not first
+ tsvector_str += "coalesce(#{column},'')"
+ first = false
+ end
+ tsvector_str += ")"
end
protected
rsc_class = ArvadosModel::resource_class_for_uuid owner_uuid
unless rsc_class == User or rsc_class == Group
- errors.add :owner_uuid, "can only be set to User or Group"
+ errors.add :owner_uuid, "must be set to User or Group"
raise PermissionDeniedError
end
# 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
+ # current user can_write new owner, or this object if owner unchanged
+ if new_record? or owner_uuid_changed? or is_a?(ApiClientAuthorization)
+ write_target = owner_uuid
+ else
+ write_target = uuid
+ end
+ unless current_user == self or current_user.can? write: write_target
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
def update_modified_by_fields
- self.updated_at = Time.now
+ current_time = db_current_time
+ self.updated_at = current_time
self.owner_uuid ||= current_default_owner if self.respond_to? :owner_uuid=
- self.modified_at = Time.now
+ self.modified_at = current_time
self.modified_by_user_uuid = current_user ? current_user.uuid : nil
self.modified_by_client_uuid = current_api_client ? current_api_client.uuid : nil
true
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]
end
resource_class = nil
- Rails.application.eager_load!
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