end
def self.remote_host(uuid_prefix:)
- Rails.configuration.remote_hosts[uuid_prefix] ||
- (Rails.configuration.remote_hosts_via_dns &&
+ (Rails.configuration.RemoteClusters[uuid_prefix].andand["Host"]) ||
+ (Rails.configuration.RemoteClusters["*"]["Proxy"] &&
uuid_prefix+".arvadosapi.com")
end
+ def self.make_http_client(uuid_prefix:)
+ clnt = HTTPClient.new
+
+ if uuid_prefix && (Rails.configuration.RemoteClusters[uuid_prefix].andand.Insecure ||
+ Rails.configuration.RemoteClusters['*'].andand.Insecure)
+ clnt.ssl_config.verify_mode = OpenSSL::SSL::VERIFY_NONE
+ else
+ # Use system CA certificates
+ ["/etc/ssl/certs/ca-certificates.crt",
+ "/etc/pki/tls/certs/ca-bundle.crt"]
+ .select { |ca_path| File.readable?(ca_path) }
+ .each { |ca_path| clnt.ssl_config.add_trust_ca(ca_path) }
+ end
+ clnt
+ end
+
+ def self.check_system_root_token token
+ if token == Rails.configuration.SystemRootToken
+ return ApiClientAuthorization.new(user: User.find_by_uuid(system_user_uuid),
+ api_token: token,
+ api_client: ApiClient.new(is_trusted: true, url_prefix: ""))
+ else
+ return nil
+ end
+ end
+
def self.validate(token:, remote: nil)
- return nil if !token
- remote ||= Rails.configuration.uuid_prefix
+ return nil if token.nil? or token.empty?
+ remote ||= Rails.configuration.ClusterID
+
+ auth = self.check_system_root_token(token)
+ if !auth.nil?
+ return auth
+ end
case token[0..2]
when 'v2/'
- _, uuid, secret = token.split('/')
- unless uuid.andand.length == 27 && secret.andand.length.andand > 0
+ _, token_uuid, secret, optional = token.split('/')
+ unless token_uuid.andand.length == 27 && secret.andand.length.andand > 0
return nil
end
+ if !optional.nil?
+ # if "optional" is a container uuid, check that it
+ # matches expections.
+ c = Container.where(uuid: optional).first
+ if !c.nil?
+ if !c.auth_uuid.nil? and c.auth_uuid != token_uuid
+ # token doesn't match the container's token
+ return nil
+ end
+ if !c.runtime_token.nil? and "v2/#{token_uuid}/#{secret}" != c.runtime_token
+ # token doesn't match the container's token
+ return nil
+ end
+ if ![Container::Locked, Container::Running].include?(c.state)
+ # container isn't locked or running, token shouldn't be used
+ return nil
+ end
+ end
+ end
+
+ # fast path: look up the token in the local database
auth = ApiClientAuthorization.
includes(:user, :api_client).
- where('uuid=? and (expires_at is null or expires_at > CURRENT_TIMESTAMP)', uuid).
+ where('uuid=? and (expires_at is null or expires_at > CURRENT_TIMESTAMP)', token_uuid).
first
if auth && auth.user &&
(secret == auth.api_token ||
secret == OpenSSL::HMAC.hexdigest('sha1', auth.api_token, remote))
+ # found it
return auth
end
- uuid_prefix = uuid[0..4]
- if uuid_prefix == Rails.configuration.uuid_prefix
- # If the token were valid, we would have validated it above
+ token_uuid_prefix = token_uuid[0..4]
+ if token_uuid_prefix == Rails.configuration.ClusterID
+ # Token is supposedly issued by local cluster, but if the
+ # token were valid, we would have been found in the database
+ # in the above query.
return nil
- elsif uuid_prefix.length != 5
+ elsif token_uuid_prefix.length != 5
# malformed
return nil
end
- host = remote_host(uuid_prefix: uuid_prefix)
+ # Invariant: token_uuid_prefix != Rails.configuration.ClusterID
+ #
+ # In other words the remaing code in this method below is the
+ # case that determines whether to accept a token that was issued
+ # by a remote cluster when the token absent or expired in our
+ # database. To begin, we need to ask the cluster that issued
+ # the token to [re]validate it.
+ clnt = ApiClientAuthorization.make_http_client(uuid_prefix: token_uuid_prefix)
+
+ host = remote_host(uuid_prefix: token_uuid_prefix)
if !host
- Rails.logger.warn "remote authentication rejected: no host for #{uuid_prefix.inspect}"
+ Rails.logger.warn "remote authentication rejected: no host for #{token_uuid_prefix.inspect}"
return nil
end
- # Token was issued by a different cluster. If it's expired or
- # missing in our database, ask the originating cluster to
- # [re]validate it.
begin
- clnt = HTTPClient.new
- if Rails.configuration.sso_insecure
- clnt.ssl_config.verify_mode = OpenSSL::SSL::VERIFY_NONE
- end
remote_user = SafeJSON.load(
clnt.get_content('https://' + host + '/arvados/v1/users/current',
- {'remote' => Rails.configuration.uuid_prefix},
+ {'remote' => Rails.configuration.ClusterID},
{'Authorization' => 'Bearer ' + token}))
rescue => e
Rails.logger.warn "remote authentication with token #{token.inspect} failed: #{e}"
return nil
end
- if !remote_user.is_a?(Hash) || !remote_user['uuid'].is_a?(String) || remote_user['uuid'][0..4] != uuid[0..4]
+
+ # Check the response is well formed.
+ if !remote_user.is_a?(Hash) || !remote_user['uuid'].is_a?(String)
Rails.logger.warn "remote authentication rejected: remote_user=#{remote_user.inspect}"
return nil
end
- act_as_system_user do
- # Add/update user and token in our database so we can
- # validate subsequent requests faster.
-
- user = User.find_or_create_by(uuid: remote_user['uuid']) do |user|
- # (this block runs for the "create" case, not for "find")
- user.is_admin = false
- user.email = remote_user['email']
- if remote_user['username'].andand.length.andand > 0
- user.set_initial_username(requested: remote_user['username'])
- end
- end
- if Rails.configuration.new_users_are_active ||
- Rails.configuration.auto_activate_users_from.include?(remote_user['uuid'][0..4])
- # Update is_active to whatever it is at the remote end
- user.is_active = remote_user['is_active']
- elsif !remote_user['is_active']
- # Remote user is inactive; our mirror should be, too.
- user.is_active = false
+ remote_user_prefix = remote_user['uuid'][0..4]
+
+ # Clusters can only authenticate for their own users.
+ if remote_user_prefix != token_uuid_prefix
+ Rails.logger.warn "remote authentication rejected: claimed remote user #{remote_user_prefix} but token was issued by #{token_uuid_prefix}"
+ return nil
+ end
+
+ # Invariant: remote_user_prefix == token_uuid_prefix
+ # therefore: remote_user_prefix != Rails.configuration.ClusterID
+
+ # Add or update user and token in local database so we can
+ # validate subsequent requests faster.
+
+ user = User.find_by_uuid(remote_user['uuid'])
+
+ if !user
+ # Create a new record for this user.
+ user = User.new(uuid: remote_user['uuid'],
+ is_active: false,
+ is_admin: false,
+ email: remote_user['email'],
+ owner_uuid: system_user_uuid)
+ user.set_initial_username(requested: remote_user['username'])
+ end
+
+ # Sync user record.
+ if remote_user_prefix == Rails.configuration.Login.LoginCluster
+ # Remote cluster controls our user database, set is_active if
+ # remote is active. If remote is not active, user will be
+ # unsetup (see below).
+ user.is_active = true if remote_user['is_active']
+ user.is_admin = remote_user['is_admin']
+ else
+ if Rails.configuration.Users.NewUsersAreActive ||
+ Rails.configuration.RemoteClusters[remote_user_prefix].andand["ActivateUsers"]
+ # Default policy is to activate users
+ user.is_active = true if remote_user['is_active']
end
+ end
+
+ %w[first_name last_name email prefs].each do |attr|
+ user.send(attr+'=', remote_user[attr])
+ end
- %w[first_name last_name email prefs].each do |attr|
- user.send(attr+'=', remote_user[attr])
+ act_as_system_user do
+ if user.is_active && !remote_user['is_active']
+ user.unsetup
end
user.save!
- auth = ApiClientAuthorization.find_or_create_by(uuid: uuid) do |auth|
+ # We will accept this token (and avoid reloading the user
+ # record) for 'RemoteTokenRefresh' (default 5 minutes).
+ # Possible todo:
+ # Request the actual api_client_auth record from the remote
+ # server in case it wants the token to expire sooner.
+ auth = ApiClientAuthorization.find_or_create_by(uuid: token_uuid) do |auth|
auth.user = user
- auth.api_token = secret
auth.api_client_id = 0
end
-
- # Accept this token (and don't reload the user record) for
- # 5 minutes. TODO: Request the actual api_client_auth
- # record from the remote server in case it wants the token
- # to expire sooner.
auth.update_attributes!(user: user,
api_token: secret,
api_client_id: 0,
- expires_at: Time.now + 5.minutes)
+ expires_at: Time.now + Rails.configuration.Login.RemoteTokenRefresh)
end
return auth
else
+ # token is not a 'v2' token
auth = ApiClientAuthorization.
- includes(:user, :api_client).
- where('api_token=? and (expires_at is null or expires_at > CURRENT_TIMESTAMP)', token).
- first
+ includes(:user, :api_client).
+ where('api_token=? and (expires_at is null or expires_at > CURRENT_TIMESTAMP)', token).
+ first
if auth && auth.user
return auth
end
end
+
return nil
end
+ def token
+ v2token
+ end
+
+ def v1token
+ api_token
+ end
+
+ def v2token
+ 'v2/' + uuid + '/' + api_token
+ end
+
+ def salted_token(remote:)
+ if remote.nil?
+ token
+ end
+ 'v2/' + uuid + '/' + OpenSSL::HMAC.hexdigest('sha1', api_token, remote)
+ end
+
protected
def permission_to_create
projects / arvados.git / blobdiff