response.rb
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module ScimRails
module Response
CONTENT_TYPE = "application/scim+json".freeze
def json_response(object, status = :ok)
render \
json: object,
status: status,
content_type: CONTENT_TYPE
end
def json_scim_response(object:, status: :ok, counts: nil)
case params[:action]
when "index"
render \
json: list_response(object, counts),
status: status,
content_type: CONTENT_TYPE
when "show", "create", "put_update", "patch_update"
render \
json: user_response(object),
status: status,
content_type: CONTENT_TYPE
end
end
private
def list_response(object, counts)
object = object
.order(:id)
.offset(counts.offset)
.limit(counts.limit)
{
"schemas": [
"urn:ietf:params:scim:api:messages:2.0:ListResponse"
],
"totalResults": counts.total,
"startIndex": counts.start_index,
"itemsPerPage": counts.limit,
"Resources": list_users(object)
}
end
def list_users(users)
users.map do |user|
user_response(user)
end
end
def user_response(user)
schema = ScimRails.config.user_schema
find_value(user, schema)
end
# `find_value` is a recursive method that takes a "user" and a
# "user schema" and replaces any symbols in the schema with the
# corresponding value from the user. Given a schema with symbols,
# `find_value` will search through the object for the symbols,
# send those symbols to the model, and replace the symbol with
# the return value.
def find_value(user, object)
case object
when Hash
object.each.with_object({}) do |(key, value), hash|
hash[key] = find_value(user, value)
end
when Array
object.map do |value|
find_value(user, value)
end
when Symbol
user.public_send(object)
else
object
end
end
end
end