+require 'assign_uuid'
class ArvadosModel < ActiveRecord::Base
self.abstract_class = true
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
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)?$/)[1].pluralize.classify.constantize rescue nil
end
+ def href
+ "#{current_api_base}/#{self.class.to_s.pluralize.underscore}/#{self.uuid}"
+ end
+
+ def self.searchable_columns
+ self.columns.collect do |col|
+ if [:string, :text].index(col.type) && col.name != 'owner_uuid'
+ col.name
+ end
+ end.compact
+ end
+
def eager_load_associations
self.class.columns.each do |col|
re = col.name.match /^(.*)_kind$/
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_uuid_changed?
if current_user.uuid == self.owner_uuid or
current_user.can? write: self.owner_uuid
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
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