+require 'assign_uuid'
class ArvadosModel < ActiveRecord::Base
self.abstract_class = true
include CurrentApiClient # current_user, current_api_client, etc.
attr_protected :created_at
- attr_protected :modified_by_user
- attr_protected :modified_by_client
+ attr_protected :modified_by_user_uuid
+ attr_protected :modified_by_client_uuid
attr_protected :modified_at
before_create :ensure_permission_to_create
before_update :ensure_permission_to_update
+ before_destroy :ensure_permission_to_destroy
before_create :update_modified_by_fields
before_update :maybe_update_modified_by_fields
validate :ensure_serialized_attribute_type
+ validate :normalize_collection_uuids
has_many :permissions, :foreign_key => :head_uuid, :class_name => 'Link', :primary_key => :uuid, :conditions => "link_class = 'permission'"
class PermissionDeniedError < StandardError
+ def http_status
+ 403
+ end
+ end
+
+ class UnauthorizedError < StandardError
+ def http_status
+ 401
+ end
end
def self.kind_class(kind)
kind.match(/^arvados\#(.+?)(_list|List)?$/)[1].pluralize.classify.constantize rescue nil
end
+ def href
+ "#{current_api_base}/#{self.class.to_s.pluralize.underscore}/#{self.uuid}"
+ end
+
+ def self.searchable_columns
+ self.columns.collect do |col|
+ if [:string, :text, :datetime].index(col.type) && col.name != 'owner_uuid'
+ col.name
+ end
+ end.compact
+ end
+
+ def self.attribute_column attr
+ self.columns.select { |col| col.name == attr.to_s }.first
+ end
+
def eager_load_associations
self.class.columns.each do |col|
re = col.name.match /^(.*)_kind$/
end
end
+ def self.readable_by user
+ 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
+ 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)
+ end
+
protected
def ensure_permission_to_create
end
def permission_to_create
- current_user
+ current_user.andand.is_active
end
def ensure_permission_to_update
logger.warn "Anonymous user tried to update #{self.class.to_s} #{self.uuid_was}"
return false
end
+ if !current_user.is_active
+ logger.warn "Inactive user #{current_user.uuid} tried to update #{self.class.to_s} #{self.uuid_was}"
+ return false
+ end
+ return true if current_user.is_admin
if self.uuid_changed?
logger.warn "User #{current_user.uuid} tried to change uuid of #{self.class.to_s} #{self.uuid_was} to #{self.uuid}"
return false
end
- return true if current_user.is_admin
- if self.owner_changed?
- if current_user.uuid == self.owner or
- current_user.can? write: self.owner
+ if self.owner_uuid_changed?
+ if current_user.uuid == self.owner_uuid or
+ current_user.can? write: self.owner_uuid
# current_user is, or has :write permission on, the new owner
else
- logger.warn "User #{current_user.uuid} tried to change owner of #{self.class.to_s} #{self.uuid} to #{self.owner} but does not have permission to write to #{self.owner}"
+ logger.warn "User #{current_user.uuid} tried to change owner_uuid of #{self.class.to_s} #{self.uuid} to #{self.owner_uuid} but does not have permission to write to #{self.owner_uuid}"
return false
end
end
- if current_user.uuid == self.owner_was or
+ if current_user.uuid == self.owner_uuid_was or
current_user.uuid == self.uuid or
- current_user.can? write: self.owner_was
+ current_user.can? write: self.owner_uuid_was
# current user is, or has :write permission on, the previous owner
return true
else
- logger.warn "User #{current_user.uuid} tried to modify #{self.class.to_s} #{self.uuid} but does not have permission to write #{self.owner_was}"
+ logger.warn "User #{current_user.uuid} tried to modify #{self.class.to_s} #{self.uuid} but does not have permission to write #{self.owner_uuid_was}"
return false
end
end
+ def ensure_permission_to_destroy
+ raise PermissionDeniedError unless permission_to_destroy
+ end
+
+ def permission_to_destroy
+ permission_to_update
+ end
+
def maybe_update_modified_by_fields
update_modified_by_fields if self.changed?
end
def update_modified_by_fields
self.created_at ||= Time.now
- self.owner ||= current_default_owner
+ self.owner_uuid ||= current_default_owner if self.respond_to? :owner_uuid=
self.modified_at = Time.now
- self.modified_by_user = current_user ? current_user.uuid : nil
- self.modified_by_client = current_api_client ? current_api_client.uuid : nil
+ self.modified_by_user_uuid = current_user ? current_user.uuid : nil
+ self.modified_by_client_uuid = current_api_client ? current_api_client.uuid : nil
end
def ensure_serialized_attribute_type
end
end
end
+
+ def foreign_key_attributes
+ attributes.keys.select { |a| a.match /_uuid$/ }
+ end
+
+ def normalize_collection_uuids
+ foreign_key_attributes.each do |attr|
+ attr_value = send attr
+ if attr_value.is_a? String and
+ attr_value.match /^[0-9a-f]{32,}(\+[@\w]+)*$/
+ begin
+ send "#{attr}=", Collection.normalize_uuid(attr_value)
+ rescue
+ # TODO: abort instead of silently accepting unnormalizable value?
+ end
+ end
+ end
+ end
+
+ def self.resource_class_for_uuid(uuid)
+ if uuid.is_a? ArvadosModel
+ return uuid.class
+ end
+ unless uuid.is_a? String
+ return nil
+ end
+ if uuid.match /^[0-9a-f]{32}(\+[^,]+)*(,[0-9a-f]{32}(\+[^,]+)*)*$/
+ return Collection
+ end
+ resource_class = nil
+
+ Rails.application.eager_load!
+ uuid.match /^[0-9a-z]{5}-([0-9a-z]{5})-[0-9a-z]{15}$/ do |re|
+ ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |k|
+ if k.respond_to?(:uuid_prefix)
+ if k.uuid_prefix == re[1]
+ return k
+ end
+ end
+ end
+ end
+ nil
+ end
+
end
projects / arvados.git / blobdiff