mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-18 04:51:35 +03:00
66caae4a44
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5362 GitOrigin-RevId: 5e246c3af3bdf2a7b5b2a66e2e09f40abcdfd9c9
523 lines
18 KiB
Haskell
523 lines
18 KiB
Haskell
-- | Types and classes related to configuration when the server is initialised
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module Hasura.Server.Init.Config
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( -- * Option
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Option (..),
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optionPP,
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-- * HGEOptionsRaw
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HGEOptionsRaw (..),
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horDatabaseUrl,
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horMetadataDbUrl,
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horCommand,
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-- * HGEOptions
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HGEOptions (..),
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hoCommand,
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-- * PostgresConnInfo
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PostgresConnInfo (..),
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pciDatabaseConn,
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pciRetries,
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-- * PostgresRawConnInfo
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PostgresConnInfoRaw (..),
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_PGConnDatabaseUrl,
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_PGConnDetails,
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mkUrlConnInfo,
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-- * PostgresRawConnDetails
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PostgresConnDetailsRaw (..),
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-- * HGECommand
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HGECommand (..),
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_HCServe,
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-- * ServeOptionsRaw
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ServeOptionsRaw (..),
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API (..),
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KeepAliveDelay (..),
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OptionalInterval (..),
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AuthHookRaw (..),
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ConnParamsRaw (..),
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ResponseInternalErrorsConfig (..),
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WSConnectionInitTimeout (..),
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msToOptionalInterval,
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rawConnDetailsToUrl,
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rawConnDetailsToUrlText,
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shouldIncludeInternal,
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-- * ServeOptions
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ServeOptions (..),
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-- * Downgrade Options
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DowngradeOptions (..),
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-- $experimentalFeatures
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-- $readOnlyMode
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)
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where
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--------------------------------------------------------------------------------
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import Control.Lens (Lens', Prism')
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import Control.Lens qualified as Lens
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import Data.Aeson (FromJSON, ToJSON, (.:), (.:?), (.=))
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import Data.Aeson qualified as Aeson
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import Data.Text qualified as Text
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import Data.Time (NominalDiffTime)
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import Data.URL.Template (URLTemplate)
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import Data.URL.Template qualified as Template
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import Database.PG.Query (ConnParams, TxIsolation)
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import Hasura.Backends.Postgres.Connection.MonadTx (ExtensionsSchema)
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import Hasura.GraphQL.Execute.Subscription.Options (BatchSize, LiveQueriesOptions, RefetchInterval, StreamQueriesOptions)
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import Hasura.GraphQL.Schema.NamingCase (NamingCase)
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import Hasura.GraphQL.Schema.Options (InferFunctionPermissions, RemoteSchemaPermissions, StringifyNumbers)
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import Hasura.Logging (EngineLogType, LogLevel)
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import Hasura.Prelude
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import Hasura.RQL.Types.Common (NonNegativeInt, UrlConf)
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import Hasura.Server.Auth (AdminSecretHash, AuthHook, AuthHookType, JWTConfig)
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import Hasura.Server.Cors (CorsConfig)
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import Hasura.Server.Logging (MetadataQueryLoggingMode)
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import Hasura.Server.Types (EventingMode, ExperimentalFeature, MaintenanceMode, ReadOnlyMode)
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import Hasura.Session (RoleName)
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import Hasura.Session qualified as Session
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import Network.Wai.Handler.Warp (HostPreference)
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import Network.Wai.Handler.Warp qualified as Warp
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import Network.WebSockets (ConnectionOptions)
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--------------------------------------------------------------------------------
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-- | The collected default value, env var, and help message for an
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-- option. If there should be no default value then use 'Option ()'.
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data Option def = Option
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{ _default :: def,
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_envVar :: String,
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_helpMessage :: String
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}
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-- | Helper function for pretty printing @Option a@.
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optionPP :: Option a -> (String, String)
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optionPP = _envVar &&& _helpMessage
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--------------------------------------------------------------------------------
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-- | Raw HGE Options from the arg parser and the env.
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data HGEOptionsRaw impl = HGEOptionsRaw
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{ _horDatabaseUrl :: PostgresConnInfo (Maybe PostgresConnInfoRaw),
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_horMetadataDbUrl :: Maybe String,
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_horCommand :: HGECommand impl
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}
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horDatabaseUrl :: Lens' (HGEOptionsRaw impl) (PostgresConnInfo (Maybe PostgresConnInfoRaw))
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horDatabaseUrl = Lens.lens _horDatabaseUrl $ \hdu a -> hdu {_horDatabaseUrl = a}
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horMetadataDbUrl :: Lens' (HGEOptionsRaw impl) (Maybe String)
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horMetadataDbUrl = Lens.lens _horMetadataDbUrl $ \hdu a -> hdu {_horMetadataDbUrl = a}
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horCommand :: Lens' (HGEOptionsRaw impl) (HGECommand impl)
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horCommand = Lens.lens _horCommand $ \hdu a -> hdu {_horCommand = a}
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--------------------------------------------------------------------------------
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-- | The final processed HGE options.
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data HGEOptions impl = HGEOptions
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{ _hoDatabaseUrl :: PostgresConnInfo (Maybe UrlConf),
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_hoMetadataDbUrl :: Maybe String,
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_hoCommand :: HGECommand impl
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}
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hoCommand :: Lens' (HGEOptions impl) (HGECommand impl)
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hoCommand = Lens.lens _hoCommand $ \hdu a -> hdu {_hoCommand = a}
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--------------------------------------------------------------------------------
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-- | Postgres connection info tupled with a retry count.
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--
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-- In practice, the @a@ here is one of the following:
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-- 1. 'Maybe PostgresConnInfoRaw'
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-- 2. 'Maybe UrlConf'
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-- 3. 'Maybe Text'
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-- 4. 'Maybe DatabaseUrl' where 'DatabaseUrl' is an alias for 'Text'
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--
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-- If it contains a 'Maybe PostgresConnInfoRaw' then you have not yet
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-- processed your arg parser results.
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data PostgresConnInfo a = PostgresConnInfo
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{ _pciDatabaseConn :: a,
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_pciRetries :: Maybe Int
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}
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deriving (Show, Eq, Functor, Foldable, Traversable)
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pciDatabaseConn :: Lens' (PostgresConnInfo a) a
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pciDatabaseConn = Lens.lens _pciDatabaseConn $ \pci a -> pci {_pciDatabaseConn = a}
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pciRetries :: Lens' (PostgresConnInfo a) (Maybe Int)
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pciRetries = Lens.lens _pciRetries $ \pci mi -> pci {_pciRetries = mi}
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--------------------------------------------------------------------------------
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-- | Postgres Connection info can come in the form of a templated URI
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-- string or structured data.
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data PostgresConnInfoRaw
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= PGConnDatabaseUrl Template.URLTemplate
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| PGConnDetails PostgresConnDetailsRaw
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deriving (Show, Eq)
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mkUrlConnInfo :: String -> PostgresConnInfoRaw
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mkUrlConnInfo = PGConnDatabaseUrl . Template.mkPlainURLTemplate . Text.pack
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_PGConnDatabaseUrl :: Prism' PostgresConnInfoRaw URLTemplate
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_PGConnDatabaseUrl = Lens.prism' PGConnDatabaseUrl $ \case
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PGConnDatabaseUrl template -> Just template
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PGConnDetails _ -> Nothing
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_PGConnDetails :: Prism' PostgresConnInfoRaw PostgresConnDetailsRaw
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_PGConnDetails = Lens.prism' PGConnDetails $ \case
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PGConnDatabaseUrl _ -> Nothing
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PGConnDetails prcd -> Just prcd
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rawConnDetailsToUrl :: PostgresConnDetailsRaw -> URLTemplate
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rawConnDetailsToUrl =
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Template.mkPlainURLTemplate . rawConnDetailsToUrlText
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--------------------------------------------------------------------------------
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-- | Structured Postgres connection information as provided by the arg
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-- parser or env vars.
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data PostgresConnDetailsRaw = PostgresConnDetailsRaw
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{ connHost :: String,
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connPort :: Int,
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connUser :: String,
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connPassword :: String,
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connDatabase :: String,
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connOptions :: Maybe String
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}
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deriving (Eq, Read, Show)
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instance FromJSON PostgresConnDetailsRaw where
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parseJSON = Aeson.withObject "PostgresConnDetailsRaw" \o -> do
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connHost <- o .: "host"
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connPort <- o .: "port"
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connUser <- o .: "user"
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connPassword <- o .: "password"
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connDatabase <- o .: "database"
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connOptions <- o .:? "options"
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pure $ PostgresConnDetailsRaw {..}
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instance ToJSON PostgresConnDetailsRaw where
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toJSON PostgresConnDetailsRaw {..} =
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Aeson.object $
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[ "host" .= connHost,
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"port" .= connPort,
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"user" .= connUser,
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"password" .= connPassword,
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"database" .= connDatabase
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]
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<> catMaybes [fmap ("options" .=) connOptions]
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rawConnDetailsToUrlText :: PostgresConnDetailsRaw -> Text
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rawConnDetailsToUrlText PostgresConnDetailsRaw {..} =
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Text.pack $
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"postgresql://" <> connUser
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<> ":"
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<> connPassword
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<> "@"
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<> connHost
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<> ":"
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<> show connPort
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<> "/"
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<> connDatabase
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<> maybe "" ("?options=" <>) connOptions
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--------------------------------------------------------------------------------
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-- | The HGE Arg parser Command choices.
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--
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-- This is polymorphic so that we can pack either 'ServeOptionsRaw' or
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-- 'ProServeOptionsRaw' in it.
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data HGECommand a
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= HCServe a
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| HCExport
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| HCClean
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| HCVersion
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| HCDowngrade !DowngradeOptions
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deriving (Show, Eq)
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_HCServe :: Prism' (HGECommand a) a
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_HCServe = Lens.prism' HCServe \case
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HCServe a -> Just a
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_ -> Nothing
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--------------------------------------------------------------------------------
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-- | The Serve Command options accumulated from the arg parser and env.
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--
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-- NOTE: A 'Nothing' value indicates the absence of a particular flag
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-- rather. Hence types such as 'Maybe (HashSet X)' or 'Maybe Bool'.
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data ServeOptionsRaw impl = ServeOptionsRaw
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{ rsoPort :: Maybe Int,
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rsoHost :: Maybe Warp.HostPreference,
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rsoConnParams :: ConnParamsRaw,
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rsoTxIso :: Maybe TxIsolation,
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rsoAdminSecret :: Maybe AdminSecretHash,
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rsoAuthHook :: AuthHookRaw,
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rsoJwtSecret :: Maybe JWTConfig,
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rsoUnAuthRole :: Maybe RoleName,
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rsoCorsConfig :: Maybe CorsConfig,
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rsoEnableConsole :: Bool,
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rsoConsoleAssetsDir :: Maybe Text,
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rsoEnableTelemetry :: Maybe Bool,
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rsoWsReadCookie :: Bool,
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rsoStringifyNum :: StringifyNumbers,
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rsoDangerousBooleanCollapse :: Maybe Bool,
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rsoEnabledAPIs :: Maybe (HashSet API),
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rsoMxRefetchInt :: Maybe RefetchInterval,
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rsoMxBatchSize :: Maybe BatchSize,
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-- We have different config options for livequery and streaming subscriptions
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rsoStreamingMxRefetchInt :: Maybe RefetchInterval,
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rsoStreamingMxBatchSize :: Maybe BatchSize,
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rsoEnableAllowlist :: Bool,
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rsoEnabledLogTypes :: Maybe (HashSet (EngineLogType impl)),
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rsoLogLevel :: Maybe LogLevel,
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rsoDevMode :: Bool,
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rsoAdminInternalErrors :: Maybe Bool,
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rsoEventsHttpPoolSize :: Maybe Int,
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rsoEventsFetchInterval :: Maybe Milliseconds,
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rsoAsyncActionsFetchInterval :: Maybe OptionalInterval,
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rsoEnableRemoteSchemaPermissions :: RemoteSchemaPermissions,
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rsoWebSocketCompression :: Bool,
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rsoWebSocketKeepAlive :: Maybe KeepAliveDelay,
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rsoInferFunctionPermissions :: Maybe InferFunctionPermissions,
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rsoEnableMaintenanceMode :: MaintenanceMode (),
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rsoSchemaPollInterval :: Maybe OptionalInterval,
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-- | See Note '$experimentalFeatures' at bottom of module
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rsoExperimentalFeatures :: Maybe (HashSet ExperimentalFeature),
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rsoEventsFetchBatchSize :: Maybe NonNegativeInt,
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rsoGracefulShutdownTimeout :: Maybe Seconds,
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rsoWebSocketConnectionInitTimeout :: Maybe WSConnectionInitTimeout,
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rsoEnableMetadataQueryLoggingEnv :: MetadataQueryLoggingMode,
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-- | stores global default naming convention
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rsoDefaultNamingConvention :: Maybe NamingCase,
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rsoExtensionsSchema :: Maybe ExtensionsSchema
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}
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data API
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= METADATA
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| GRAPHQL
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| PGDUMP
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| DEVELOPER
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| CONFIG
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| METRICS
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deriving (Show, Eq, Read, Generic)
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instance FromJSON API where
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parseJSON = Aeson.withText "API" \case
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"metadata" -> pure METADATA
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"graphql" -> pure GRAPHQL
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"pgdump" -> pure PGDUMP
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"developer" -> pure DEVELOPER
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"config" -> pure CONFIG
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"metrics" -> pure METRICS
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x -> fail $ "unexpected string '" <> show x <> "'."
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instance ToJSON API where
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toJSON = \case
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METADATA -> Aeson.String "metadata"
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GRAPHQL -> Aeson.String "graphql"
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PGDUMP -> Aeson.String "pgdump"
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DEVELOPER -> Aeson.String "developer"
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CONFIG -> Aeson.String "config"
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METRICS -> Aeson.String "metrics"
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instance Hashable API
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data AuthHookRaw = AuthHookRaw
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{ ahrUrl :: Maybe Text,
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ahrType :: Maybe AuthHookType
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}
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-- | Sleep time interval for recurring activities such as (@'asyncActionsProcessor')
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-- Presently @'msToOptionalInterval' interprets `0` as Skip.
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data OptionalInterval
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= -- | No polling
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Skip
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| -- | Interval time
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Interval !Milliseconds
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deriving (Show, Eq)
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msToOptionalInterval :: Milliseconds -> OptionalInterval
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msToOptionalInterval = \case
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0 -> Skip
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s -> Interval s
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instance FromJSON OptionalInterval where
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parseJSON v = msToOptionalInterval <$> Aeson.parseJSON v
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instance ToJSON OptionalInterval where
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toJSON = \case
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Skip -> Aeson.toJSON @Milliseconds 0
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Interval s -> Aeson.toJSON s
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-- | The Raw configuration data from the Arg and Env parsers needed to
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-- construct a 'Q.ConnParams'
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data ConnParamsRaw = ConnParamsRaw
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{ rcpStripes :: Maybe Int,
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rcpConns :: Maybe Int,
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rcpIdleTime :: Maybe Int,
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-- | Time from connection creation after which to destroy a connection and
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-- choose a different/new one.
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rcpConnLifetime :: Maybe NominalDiffTime,
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rcpAllowPrepare :: Maybe Bool,
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-- | See @HASURA_GRAPHQL_PG_POOL_TIMEOUT@
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rcpPoolTimeout :: Maybe NominalDiffTime
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}
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deriving (Show, Eq)
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newtype KeepAliveDelay = KeepAliveDelay {unKeepAliveDelay :: Seconds}
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deriving (Eq, Show)
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instance FromJSON KeepAliveDelay where
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parseJSON = Aeson.withObject "KeepAliveDelay" \o -> do
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unKeepAliveDelay <- o .: "keep_alive_delay"
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pure $ KeepAliveDelay {..}
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instance ToJSON KeepAliveDelay where
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toJSON KeepAliveDelay {..} =
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Aeson.object ["keep_alive_delay" .= unKeepAliveDelay]
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--------------------------------------------------------------------------------
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newtype WSConnectionInitTimeout = WSConnectionInitTimeout {unWSConnectionInitTimeout :: Seconds}
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deriving (Eq, Show)
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instance FromJSON WSConnectionInitTimeout where
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parseJSON = Aeson.withObject "WSConnectionInitTimeout" \o -> do
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unWSConnectionInitTimeout <- o .: "w_s_connection_init_timeout"
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pure $ WSConnectionInitTimeout {..}
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instance ToJSON WSConnectionInitTimeout where
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toJSON WSConnectionInitTimeout {..} =
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Aeson.object ["w_s_connection_init_timeout" .= unWSConnectionInitTimeout]
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--------------------------------------------------------------------------------
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-- | The final Serve Command options accummulated from the Arg Parser
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-- and the Environment, fully processed and ready to apply when
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-- running the server.
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data ServeOptions impl = ServeOptions
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{ soPort :: Int,
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soHost :: HostPreference,
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soConnParams :: ConnParams,
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soTxIso :: TxIsolation,
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soAdminSecret :: HashSet AdminSecretHash,
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soAuthHook :: Maybe AuthHook,
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soJwtSecret :: [JWTConfig],
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soUnAuthRole :: Maybe RoleName,
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soCorsConfig :: CorsConfig,
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soEnableConsole :: Bool,
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soConsoleAssetsDir :: Maybe Text,
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soEnableTelemetry :: Bool,
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soStringifyNum :: StringifyNumbers,
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soDangerousBooleanCollapse :: Bool,
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soEnabledAPIs :: HashSet API,
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soLiveQueryOpts :: LiveQueriesOptions,
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soStreamingQueryOpts :: StreamQueriesOptions,
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soEnableAllowlist :: Bool,
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soEnabledLogTypes :: HashSet (EngineLogType impl),
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soLogLevel :: LogLevel,
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soResponseInternalErrorsConfig :: ResponseInternalErrorsConfig,
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soEventsHttpPoolSize :: Maybe Int,
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soEventsFetchInterval :: Maybe Milliseconds,
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soAsyncActionsFetchInterval :: OptionalInterval,
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soEnableRemoteSchemaPermissions :: RemoteSchemaPermissions,
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soConnectionOptions :: ConnectionOptions,
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soWebSocketKeepAlive :: KeepAliveDelay,
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soInferFunctionPermissions :: InferFunctionPermissions,
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soEnableMaintenanceMode :: MaintenanceMode (),
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soSchemaPollInterval :: OptionalInterval,
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-- | See note '$experimentalFeatures'
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soExperimentalFeatures :: HashSet ExperimentalFeature,
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soEventsFetchBatchSize :: NonNegativeInt,
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soDevMode :: Bool,
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soGracefulShutdownTimeout :: Seconds,
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soWebSocketConnectionInitTimeout :: WSConnectionInitTimeout,
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soEventingMode :: EventingMode,
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-- | See note '$readOnlyMode'
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soReadOnlyMode :: ReadOnlyMode,
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soEnableMetadataQueryLogging :: MetadataQueryLoggingMode,
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soDefaultNamingConvention :: Maybe NamingCase,
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soExtensionsSchema :: ExtensionsSchema
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}
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-- | 'ResponseInternalErrorsConfig' represents the encoding of the
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-- internal errors in the response to the client.
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--
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-- For more details, see this github comment:
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-- https://github.com/hasura/graphql-engine/issues/4031#issuecomment-609747705
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data ResponseInternalErrorsConfig
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= InternalErrorsAllRequests
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| InternalErrorsAdminOnly
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| InternalErrorsDisabled
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deriving (Show, Eq)
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shouldIncludeInternal :: RoleName -> ResponseInternalErrorsConfig -> Bool
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shouldIncludeInternal role = \case
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InternalErrorsAllRequests -> True
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InternalErrorsAdminOnly -> role == Session.adminRoleName
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InternalErrorsDisabled -> False
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--------------------------------------------------------------------------------
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-- | The Downgrade Command options. These are only sourced from the
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-- Arg Parser and are used directly in 'Hasura.Server.Migrate'.
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data DowngradeOptions = DowngradeOptions
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{ dgoTargetVersion :: Text,
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dgoDryRun :: Bool
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}
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deriving (Show, Eq)
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--------------------------------------------------------------------------------
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-- $experimentalFeatures
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-- Note Experimental features:
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--
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-- The graphql-engine accepts a list of experimental features that can be
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-- enabled at the startup. Experimental features are a way to introduce
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-- new, but not stable features to our users in a manner in which they have
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-- the choice to enable or disable a certain feature(s).
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--
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-- The objective of an experimental feature should be that when the feature is disabled,
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-- the graphql-engine should work the same way as it worked before adding the said feature.
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--
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-- The experimental feature's flag is `--experimental-features` and the corresponding
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-- environment variable is `HASURA_GRAPHQL_EXPERIMENTAL_FEATURES` which expects a comma-seperated
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-- value.
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--
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-- When an experimental feature is stable enough i.e. it's stable through multiple non-beta releases
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-- then we make the feature not experimental i.e. it will always be enabled. Note that when we do this
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-- we still have to support parsing of the experimental feature because users of the previous version
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-- will have it enabled and when they upgrade an error should not be thrown at the startup. For example:
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--
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-- The inherited roles was an experimental feature when introduced and it was enabled by
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-- setting `--experimental-features` to `inherited_roles` and then it was decided to make the inherited roles
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-- a stable feature, so it was removed as an experimental feature but the code was modified such that
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-- `--experimental-features inherited_roles` to not throw an error.
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--------------------------------------------------------------------------------
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-- $readOnlyMode
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-- Note ReadOnly Mode:
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--
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-- This mode starts the server in a (database) read-only mode. That is, only
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-- read-only queries are allowed on users' database sources, and write
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-- queries throw a runtime error. The use-case is for failsafe operations.
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-- Metadata APIs are also disabled.
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--
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-- Following is the precise behaviour -
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-- 1. For any GraphQL API (relay/hasura; http/websocket) - disable execution of
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-- mutations
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-- 2. Metadata API is disabled
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-- 3. /v2/query API - insert, delete, update, run_sql are disabled
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-- 4. /v1/query API - insert, delete, update, run_sql are disabled
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-- 5. No source catalog migrations are run
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-- 6. During build schema cache phase, building event triggers are disabled (as
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-- they create corresponding database triggers)
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