119 lines
2.7 KiB
Ruby
119 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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class LfsToken
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module LfsTokenHelper
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def user?
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actor.is_a?(User)
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end
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def actor_name
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user? ? actor.username : "lfs+deploy-key-#{actor.id}"
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end
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end
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include LfsTokenHelper
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DEFAULT_EXPIRE_TIME = 7200 # Default value 2 hours
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attr_accessor :actor
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def initialize(actor)
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@actor =
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case actor
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when DeployKey, User
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actor
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when Key
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actor.user
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else
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raise 'Bad Actor'
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end
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end
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def token
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HMACToken.new(actor).token(DEFAULT_EXPIRE_TIME)
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end
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# When the token is an lfs one and the actor
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# is blocked or the password has been changed,
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# the token is no longer valid
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def token_valid?(token_to_check)
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HMACToken.new(actor).token_valid?(token_to_check) && valid_user?
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end
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def deploy_key_pushable?(project)
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actor.is_a?(DeployKey) && actor.can_push_to?(project)
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end
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def type
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user? ? :lfs_token : :lfs_deploy_token
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end
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def valid_user?
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return true unless user?
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!actor.blocked? && !actor.password_expired_if_applicable?
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end
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def authentication_payload(repository_http_path)
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{
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username: actor_name,
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lfs_token: token,
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repository_http_path: repository_http_path,
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expires_in: DEFAULT_EXPIRE_TIME
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}
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end
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def basic_encoding
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ActionController::HttpAuthentication::Basic.encode_credentials(actor_name, token)
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end
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private # rubocop:disable Lint/UselessAccessModifier
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class HMACToken
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include LfsTokenHelper
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def initialize(actor)
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@actor = actor
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end
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def token(expire_time)
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hmac_token = JSONWebToken::HMACToken.new(secret)
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hmac_token.expire_time = Time.now + expire_time
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hmac_token[:data] = { actor: actor_name }
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hmac_token.encoded
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end
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def token_valid?(token_to_check)
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decoded_token = JSONWebToken::HMACToken.decode(token_to_check, secret).first
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decoded_token.dig('data', 'actor') == actor_name
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rescue JWT::DecodeError
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false
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end
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private
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attr_reader :actor
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def secret
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salt + key
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end
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def salt
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case actor
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when DeployKey, Key
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actor.fingerprint.delete(':').first(16)
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when User
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# Take the last 16 characters as they're more unique than the first 16
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actor.id.to_s + actor.encrypted_password.last(16)
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end
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end
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def key
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# Take 16 characters of attr_encrypted_db_key_base, as that's what the
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# cipher needs exactly
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Settings.attr_encrypted_db_key_base.first(16)
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end
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end
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end
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end
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