+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
class ApiClientAuthorization < ArvadosModel
include HasUuid
include KindAndEtag
include CommonApiTemplate
+ extend CurrentApiClient
belongs_to :api_client
belongs_to :user
t.add :owner_uuid
t.add :user_id
t.add :api_client_id
+ # NB the "api_token" db column is a misnomer in that it's only the
+ # "secret" part of a token: a v1 token is just the secret, but a
+ # v2 token is "v2/uuid/secret".
t.add :api_token
t.add :created_by_ip_address
t.add :default_owner_uuid
["#{table_name}.id desc"]
end
+ def self.remote_host(uuid_prefix:)
+ Rails.configuration.RemoteClusters[uuid_prefix]["Host"] ||
+ (Rails.configuration.RemoteClusters["*"]["Proxy"] &&
+ uuid_prefix+".arvadosapi.com")
+ end
+
+ def self.validate(token:, remote: nil)
+ return nil if !token
+ remote ||= Rails.configuration.ClusterID
+
+ case token[0..2]
+ when 'v2/'
+ _, uuid, secret, optional = token.split('/')
+ unless 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 != uuid
+ # token doesn't match the container's token
+ return nil
+ end
+ if !c.runtime_token.nil? and "v2/#{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
+
+ auth = ApiClientAuthorization.
+ includes(:user, :api_client).
+ where('uuid=? and (expires_at is null or expires_at > CURRENT_TIMESTAMP)', uuid).
+ first
+ if auth && auth.user &&
+ (secret == auth.api_token ||
+ secret == OpenSSL::HMAC.hexdigest('sha1', auth.api_token, remote))
+ return auth
+ end
+
+ uuid_prefix = uuid[0..4]
+ if uuid_prefix == Rails.configuration.ClusterID
+ # If the token were valid, we would have validated it above
+ return nil
+ elsif uuid_prefix.length != 5
+ # malformed
+ return nil
+ end
+
+ host = remote_host(uuid_prefix: uuid_prefix)
+ if !host
+ Rails.logger.warn "remote authentication rejected: no host for #{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.TLS["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
+ remote_user = SafeJSON.load(
+ clnt.get_content('https://' + host + '/arvados/v1/users/current',
+ {'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]
+ 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.Users["NewUsersAreActive"] ||
+ Rails.configuration.RemoteClusters[remote_user['uuid'][0..4]].andand["ActivateUsers"]
+ # 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
+ end
+
+ %w[first_name last_name email prefs].each do |attr|
+ user.send(attr+'=', remote_user[attr])
+ end
+
+ user.save!
+
+ auth = ApiClientAuthorization.find_or_create_by(uuid: 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)
+ end
+ return auth
+ else
+ auth = ApiClientAuthorization.
+ 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
end
def permission_to_update
- (permission_to_create and
- not uuid_changed? and
- not user_id_changed? and
- not owner_uuid_changed?)
+ permission_to_create && !uuid_changed? &&
+ (current_user.andand.is_admin || !user_id_changed?)
end
def log_update
projects / arvados.git / blobdiff