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|
# frozen_string_literal: true
module Gitlab
module Ci
class Jwt
NOT_BEFORE_TIME = 5
DEFAULT_EXPIRE_TIME = 60 * 5
NoSigningKeyError = Class.new(StandardError)
def self.for_build(build)
self.new(build, ttl: build.metadata_timeout).encoded
end
def initialize(build, ttl:)
@build = build
@ttl = ttl
end
def payload
custom_claims.merge(reserved_claims)
end
def encoded
headers = { kid: kid, typ: 'JWT' }
JWT.encode(payload, key, 'RS256', headers)
end
private
attr_reader :build, :ttl
delegate :project, :user, :pipeline, :runner, to: :build
delegate :source_ref, :source_ref_path, to: :pipeline
def reserved_claims
now = Time.now.to_i
{
jti: SecureRandom.uuid,
iss: Settings.gitlab.host,
iat: now,
nbf: now - NOT_BEFORE_TIME,
exp: now + (ttl || DEFAULT_EXPIRE_TIME),
sub: "job_#{build.id}"
}
end
def custom_claims
fields = {
namespace_id: namespace.id.to_s,
namespace_path: namespace.full_path,
project_id: project.id.to_s,
project_path: project.full_path,
user_id: user&.id.to_s,
user_login: user&.username,
user_email: user&.email,
pipeline_id: pipeline.id.to_s,
pipeline_source: pipeline.source.to_s,
job_id: build.id.to_s,
ref: source_ref,
ref_type: ref_type,
ref_path: source_ref_path,
ref_protected: build.protected.to_s
}
if environment.present?
fields.merge!(
environment: environment.name,
environment_protected: environment_protected?.to_s,
deployment_tier: build.environment_tier
)
end
fields
end
def key
@key ||= begin
key_data = Gitlab::CurrentSettings.ci_jwt_signing_key
raise NoSigningKeyError unless key_data
OpenSSL::PKey::RSA.new(key_data)
end
end
def public_key
key.public_key
end
def kid
public_key.to_jwk[:kid]
end
def namespace
project.namespace
end
def ref_type
::Ci::BuildRunnerPresenter.new(build).ref_type
end
def environment
build.persisted_environment
end
def environment_protected?
false # Overridden in EE
end
end
end
end
Gitlab::Ci::Jwt.prepend_mod_with('Gitlab::Ci::Jwt')
|
