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# frozen_string_literal: true
class AccessTokenValidationService
# Results:
VALID = :valid
EXPIRED = :expired
REVOKED = :revoked
INSUFFICIENT_SCOPE = :insufficient_scope
IMPERSONATION_DISABLED = :impersonation_disabled
attr_reader :token, :request
def initialize(token, request: nil)
@token = token
@request = request
end
def validate(scopes: [])
if token.expired?
EXPIRED
elsif token.revoked?
REVOKED
elsif !self.include_any_scope?(scopes)
INSUFFICIENT_SCOPE
elsif token.respond_to?(:impersonation) &&
token.impersonation &&
!Gitlab.config.gitlab.impersonation_enabled
IMPERSONATION_DISABLED
else
VALID
end
end
# True if the token's scope contains any of the passed scopes.
def include_any_scope?(required_scopes)
if required_scopes.blank?
true
else
# We're comparing each required_scope against all token scopes, which would
# take quadratic time. This consideration is irrelevant here because of the
# small number of records involved.
# https://gitlab.com/gitlab-org/gitlab-foss/merge_requests/12300/#note_33689006
token_scopes = token.scopes.map(&:to_sym)
required_scopes.any? do |scope|
scope = API::Scope.new(scope) unless scope.is_a?(API::Scope)
scope.sufficient?(token_scopes, request)
end
end
end
end
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