attr_protected :modified_by_user_uuid
attr_protected :modified_by_client_uuid
attr_protected :modified_at
+ after_initialize :log_start_state
before_create :ensure_permission_to_create
before_update :ensure_permission_to_update
before_destroy :ensure_permission_to_destroy
- before_validation :maybe_update_modified_by_fields
+ before_create :update_modified_by_fields
+ before_update :maybe_update_modified_by_fields
+ after_create :log_create
+ after_update :log_update
+ after_destroy :log_destroy
validate :ensure_serialized_attribute_type
validate :normalize_collection_uuids
validate :ensure_valid_uuids
def self.searchable_columns operator
textonly_operator = !operator.match(/[<=>]/)
self.columns.collect do |col|
- if col.name == 'owner_uuid'
- nil
- elsif [:string, :text].index(col.type)
+ if [:string, :text].index(col.type)
col.name
elsif !textonly_operator and [:datetime, :integer].index(col.type)
col.name
# end
def self.readable_by user
+ if user.is_admin
+ # Admins can read anything, so return immediately.
+ return self
+ end
+
uuid_list = [user.uuid, *user.groups_i_can(:read)]
sanitized_uuid_list = uuid_list.
collect { |uuid| sanitize(uuid) }.join(', ')
or_references_me = ''
- if self == Link and user
+
+ if self == User
+ or_row_is_me = "OR (#{table_name}.uuid=#{sanitize user.uuid})"
+ end
+
+ if self == Link
or_references_me = "OR (#{table_name}.link_class in (#{sanitize 'permission'}, #{sanitize 'resources'}) AND #{sanitize user.uuid} IN (#{table_name}.head_uuid, #{table_name}.tail_uuid))"
end
- joins("LEFT JOIN links permissions ON permissions.head_uuid in (#{table_name}.owner_uuid, #{table_name}.uuid) AND permissions.tail_uuid in (#{sanitized_uuid_list}) AND permissions.link_class='permission'").
- where("?=? OR #{table_name}.owner_uuid in (?) OR #{table_name}.uuid=? OR permissions.head_uuid IS NOT NULL #{or_references_me}",
- true, user.is_admin,
- uuid_list,
- user.uuid)
+
+ if self == Log
+ or_object_uuid = ", #{table_name}.object_uuid"
+ or_object_owner = "OR (#{table_name}.object_owner_uuid in (#{sanitized_uuid_list}))"
+ end
+
+ # Link head points to this row, or to the owner of this row (the thing to be read)
+ # (or the object described by this row, for logs table only)
+ # Link tail originates from this user, or a group that is readable by this
+ # user (the identity with authorization to read)
+ # Link is any permission link ('write' and 'manage' implicitly include 'read')
+ # The existence of such a link is tested in the where clause as permissions.head_uuid IS NOT NULL.
+ # or
+ # This row is owned by this user, or owned by a group readable by this user
+ # or
+ # This is the users table
+ # This row uuid is equal this user uuid
+ # or
+ # This is the links table
+ # This row is a permission link
+ # The current user is referenced in either the head or tail of the link
+ # or
+ # This is the logs table
+ # This object described by this row is owned by this user, or owned by a group readable by this user
+
+ joins("LEFT JOIN links permissions ON permissions.head_uuid in (#{table_name}.owner_uuid, #{table_name}.uuid #{or_object_uuid}) AND permissions.tail_uuid in (#{sanitized_uuid_list}) AND permissions.link_class='permission'").
+ where("permissions.head_uuid IS NOT NULL OR #{table_name}.owner_uuid in (?) #{or_row_is_me} #{or_references_me} #{or_object_owner}",
+ uuid_list).uniq
+ end
+
+ def logged_attributes
+ attributes
end
protected
end
def update_modified_by_fields
- self.created_at ||= Time.now
+ self.updated_at = Time.now
self.owner_uuid ||= current_default_owner if self.respond_to? :owner_uuid=
self.modified_at = Time.now
self.modified_by_user_uuid = current_user ? current_user.uuid : nil
%w(modified_by_client_uuid)
end
+ def skip_uuid_existence_check
+ []
+ end
+
def normalize_collection_uuids
foreign_key_attributes.each do |attr|
attr_value = send attr
specials = [system_user_uuid, 'd41d8cd98f00b204e9800998ecf8427e+0']
foreign_key_attributes.each do |attr|
- begin
- if new_record? or send (attr + "_changed?")
- attr_value = send attr
- r = ArvadosModel::resource_class_for_uuid attr_value if attr_value
- r = r.readable_by(current_user) if r and not skip_uuid_read_permission_check.include? attr
- if r and r.where(uuid: attr_value).count == 0 and not specials.include? attr_value
- errors.add(attr, "'#{attr_value}' not found")
+ if new_record? or send (attr + "_changed?")
+ next if skip_uuid_existence_check.include? attr
+ attr_value = send attr
+ next if specials.include? attr_value
+ if attr_value
+ if (r = ArvadosModel::resource_class_for_uuid attr_value)
+ unless skip_uuid_read_permission_check.include? attr
+ r = r.readable_by(current_user)
+ end
+ if r.where(uuid: attr_value).count == 0
+ errors.add(attr, "'#{attr_value}' not found")
+ end
end
end
- rescue Exception => e
- bt = e.backtrace.join("\n")
- errors.add(attr, "'#{attr_value}' error '#{e}'\n#{bt}\n")
end
end
end
+ class Email
+ def self.kind
+ "email"
+ end
+
+ def kind
+ self.class.kind
+ end
+
+ def self.readable_by (u)
+ self
+ end
+
+ def self.where (u)
+ [{:uuid => u[:uuid]}]
+ end
+ end
+
def self.resource_class_for_uuid(uuid)
if uuid.is_a? ArvadosModel
return uuid.class
uuid.match @@UUID_REGEX do |re|
return uuid_prefixes[re[1]] if uuid_prefixes[re[1]]
end
+
+ if uuid.match /.+@.+/
+ return Email
+ end
+
nil
end
+ def log_start_state
+ @old_etag = etag
+ @old_attributes = 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_create
+ log_change('create') do |log|
+ log.fill_properties('old', nil, nil)
+ log.update_to self
+ end
+ end
+
+ def log_update
+ log_change('update') do |log|
+ log.fill_properties('old', @old_etag, @old_attributes)
+ log.update_to self
+ end
+ end
+
+ def log_destroy
+ log_change('destroy') do |log|
+ log.fill_properties('old', @old_etag, @old_attributes)
+ log.update_to nil
+ end
+ end
end
projects / arvados.git / blobdiff