mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-17 20:41:49 +03:00
4964ddc6e9
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5710 GitOrigin-RevId: 6065c5b378cd458ad7ea05ce5ca5ff3cee5b13a7
796 lines
35 KiB
Haskell
796 lines
35 KiB
Haskell
{-# LANGUAGE QuasiQuotes #-}
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module Hasura.GraphQL.Execute.Action
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( fetchActionLogResponses,
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runActionExecution,
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asyncActionsProcessor,
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resolveActionExecution,
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resolveActionMutationAsync,
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resolveAsyncActionQuery,
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insertActionTx,
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fetchUndeliveredActionEventsTx,
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setActionStatusTx,
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fetchActionResponseTx,
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clearActionDataTx,
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setProcessingActionLogsToPendingTx,
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LockedActionIdArray (..),
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module Types,
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)
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where
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import Control.Concurrent.Async.Lifted.Safe qualified as LA
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import Control.Concurrent.Extended (Forever (..), sleep)
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import Control.Concurrent.STM qualified as STM
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import Control.Exception (try)
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import Control.Lens
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import Control.Monad.Trans.Control (MonadBaseControl)
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import Data.Aeson qualified as J
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import Data.Aeson.Key qualified as K
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import Data.Aeson.KeyMap qualified as KM
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import Data.Aeson.Ordered qualified as AO
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import Data.ByteString.Lazy qualified as BL
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import Data.CaseInsensitive qualified as CI
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import Data.Environment qualified as Env
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import Data.Has
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import Data.HashMap.Strict qualified as Map
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import Data.SerializableBlob qualified as SB
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import Data.Set (Set)
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import Data.Text.Extended
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import Data.Text.NonEmpty
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import Database.PG.Query qualified as Q
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import Hasura.Backends.Postgres.Connection.MonadTx
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import Hasura.Backends.Postgres.Execute.Prepare
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import Hasura.Backends.Postgres.Execute.Types
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import Hasura.Backends.Postgres.SQL.DML qualified as S
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import Hasura.Backends.Postgres.SQL.Types
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import Hasura.Backends.Postgres.SQL.Value (PGScalarValue (..))
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import Hasura.Backends.Postgres.Translate.Select qualified as RS
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import Hasura.Backends.Postgres.Types.Function qualified as TF
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import Hasura.Base.Error
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import Hasura.EncJSON
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import Hasura.Eventing.Common
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import Hasura.GraphQL.Execute.Action.Types as Types
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import Hasura.GraphQL.Parser.Name qualified as GName
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import Hasura.GraphQL.Schema.Options qualified as Options
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import Hasura.GraphQL.Transport.HTTP.Protocol as GH
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import Hasura.HTTP
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import Hasura.Logging qualified as L
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import Hasura.Metadata.Class
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import Hasura.Name qualified as Name
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import Hasura.Prelude
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import Hasura.RQL.DDL.Headers
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import Hasura.RQL.DDL.Webhook.Transform
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import Hasura.RQL.DDL.Webhook.Transform.Class (mkReqTransformCtx)
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import Hasura.RQL.IR.Action qualified as IR
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import Hasura.RQL.IR.BoolExp
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import Hasura.RQL.IR.Select qualified as RS
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import Hasura.RQL.IR.Value qualified as IR
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import Hasura.RQL.Types.Action
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import Hasura.RQL.Types.Column
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import Hasura.RQL.Types.Common
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import Hasura.RQL.Types.ComputedField
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import Hasura.RQL.Types.CustomTypes
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import Hasura.RQL.Types.Eventing
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import Hasura.RQL.Types.Function
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import Hasura.RQL.Types.SchemaCache
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import Hasura.SQL.Backend
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import Hasura.SQL.Types
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import Hasura.Server.Utils
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( mkClientHeadersForward,
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mkSetCookieHeaders,
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)
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import Hasura.Session
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import Hasura.Tracing qualified as Tracing
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import Language.GraphQL.Draft.Syntax qualified as G
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import Network.HTTP.Client.Transformable qualified as HTTP
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import Network.Wreq qualified as Wreq
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fetchActionLogResponses ::
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(MonadError QErr m, MonadMetadataStorage (MetadataStorageT m), Foldable t) =>
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t ActionId ->
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m (ActionLogResponseMap, Bool)
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fetchActionLogResponses actionIds = do
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responses <- for (toList actionIds) $ \actionId ->
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(actionId,)
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<$> liftEitherM (runMetadataStorageT $ fetchActionResponse actionId)
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-- An action is said to be completed/processed iff response is captured from webhook or
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-- in case any exception occured in calling webhook.
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let isActionComplete ActionLogResponse {..} =
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isJust _alrResponsePayload || isJust _alrErrors
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pure (Map.fromList responses, all (isActionComplete . snd) responses)
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runActionExecution ::
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( MonadIO m,
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MonadBaseControl IO m,
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MonadError QErr m,
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Tracing.MonadTrace m,
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MonadMetadataStorage (MetadataStorageT m)
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) =>
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UserInfo ->
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ActionExecutionPlan ->
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m (DiffTime, (EncJSON, Maybe HTTP.ResponseHeaders))
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runActionExecution userInfo aep =
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withElapsedTime $ case aep of
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AEPSync e -> second Just <$> unActionExecution e
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AEPAsyncQuery (AsyncActionQueryExecutionPlan actionId execution) -> do
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actionLogResponse <- liftEitherM $ runMetadataStorageT $ fetchActionResponse actionId
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(,Nothing) <$> case execution of
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AAQENoRelationships f -> liftEither $ f actionLogResponse
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AAQEOnSourceDB srcConfig (AsyncActionQuerySourceExecution _ jsonAggSelect f) -> do
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let selectAST = f actionLogResponse
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selectResolved <- traverse (prepareWithoutPlan userInfo) selectAST
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let querySQL = Q.fromBuilder $ toSQL $ RS.mkSQLSelect jsonAggSelect selectResolved
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liftEitherM $ runExceptT $ runTx (_pscExecCtx srcConfig) Q.ReadOnly $ liftTx $ asSingleRowJsonResp querySQL []
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AEPAsyncMutation actionId -> pure $ (,Nothing) $ encJFromJValue $ actionIdToText actionId
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-- | This function is generally used on the result of 'selectQuerySQL',
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-- 'selectAggregateQuerySQL' or 'connectionSelectSQL' to run said query and get
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-- back the resulting JSON.
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asSingleRowJsonResp ::
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Q.Query ->
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[Q.PrepArg] ->
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Q.TxE QErr EncJSON
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asSingleRowJsonResp query args =
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runIdentity . Q.getRow
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<$> Q.rawQE dmlTxErrorHandler query args True
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-- | Synchronously execute webhook handler and resolve response to action "output"
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resolveActionExecution ::
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Env.Environment ->
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L.Logger L.Hasura ->
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UserInfo ->
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IR.AnnActionExecution Void ->
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ActionExecContext ->
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Maybe GQLQueryText ->
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ActionExecution
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resolveActionExecution env logger _userInfo IR.AnnActionExecution {..} ActionExecContext {..} gqlQueryText =
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ActionExecution $ first (encJFromOrderedValue . makeActionResponseNoRelations _aaeFields _aaeOutputType _aaeOutputFields True) <$> runWebhook
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where
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handlerPayload = ActionWebhookPayload (ActionContext _aaeName) _aecSessionVariables _aaePayload gqlQueryText
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runWebhook ::
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(MonadIO m, MonadError QErr m, Tracing.MonadTrace m) =>
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m (ActionWebhookResponse, HTTP.ResponseHeaders)
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runWebhook =
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flip runReaderT logger $
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callWebhook
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env
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_aecManager
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_aaeOutputType
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_aaeOutputFields
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_aecHeaders
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_aaeHeaders
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_aaeForwardClientHeaders
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_aaeWebhook
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handlerPayload
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_aaeTimeOut
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_aaeRequestTransform
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_aaeResponseTransform
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throwUnexpected :: (MonadError QErr m) => Text -> m ()
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throwUnexpected = throw400 Unexpected
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-- Webhook response object should conform to action output fields
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validateResponseObject :: MonadError QErr m => KM.KeyMap J.Value -> IR.ActionOutputFields -> m ()
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validateResponseObject obj outputField = do
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-- Note: Fields not specified in the output are ignored
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void $
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flip Map.traverseWithKey outputField $ \fieldName fieldTy ->
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-- When field is non-nullable, it has to present in the response with no null value
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unless (G.isNullable fieldTy) $ case KM.lookup (K.fromText $ G.unName fieldName) obj of
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Nothing ->
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throwUnexpected $
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"field " <> fieldName <<> " expected in webhook response, but not found"
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Just v ->
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when (v == J.Null) $
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throwUnexpected $
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"expecting not null value for field " <>> fieldName
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-- Validates the webhook response against the output type
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validateResponse :: (MonadError QErr m) => J.Value -> GraphQLType -> IR.ActionOutputFields -> m ()
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validateResponse webhookResponse' outputType outputF =
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unless (isCustomScalar (unGraphQLType outputType) outputF) do
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case (webhookResponse', outputType) of
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(J.Null, _) -> do
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unless (isNullableType outputType) $ throwUnexpected "got null for the action webhook response"
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(J.Number _, (GraphQLType (G.TypeNamed _ name))) -> do
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unless (name == GName._Int || name == GName._Float) $
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throwUnexpected $ "got scalar String for the action webhook response, expecting " <> G.unName name
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(J.Bool _, (GraphQLType (G.TypeNamed _ name))) -> do
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unless (name == GName._Boolean) $
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throwUnexpected $ "got scalar Boolean for the action webhook response, expecting " <> G.unName name
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(J.String _, (GraphQLType (G.TypeNamed _ name))) -> do
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unless (name == GName._String || name == GName._ID) $
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throwUnexpected $ "got scalar String for the action webhook response, expecting " <> G.unName name
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(J.Array _, (GraphQLType (G.TypeNamed _ name))) -> throwUnexpected $ "got array for the action webhook response, expecting " <> G.unName name
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(J.Array objs, (GraphQLType (G.TypeList _ outputType''))) -> do
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traverse_ (\o -> validateResponse o (GraphQLType outputType'') outputF) objs
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((J.Object obj), (GraphQLType (G.TypeNamed _ name))) -> do
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when (isInBuiltScalar (G.unName name)) $
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throwUnexpected $ "got object for the action webhook response, expecting " <> G.unName name
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validateResponseObject obj outputF
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(_, (GraphQLType (G.TypeList _ _))) ->
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throwUnexpected $ "expecting array for the action webhook response"
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-- | Build action response from the Webhook JSON response when there are no relationships defined
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makeActionResponseNoRelations :: IR.ActionFields -> GraphQLType -> IR.ActionOutputFields -> Bool -> ActionWebhookResponse -> AO.Value
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makeActionResponseNoRelations annFields outputType outputF shouldCheckOutputField webhookResponse =
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let mkResponseObject :: IR.ActionFields -> KM.KeyMap J.Value -> AO.Value
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mkResponseObject fields obj =
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AO.object $
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flip mapMaybe fields $ \(fieldName, annField) ->
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let fieldText = getFieldNameTxt fieldName
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in (fieldText,) <$> case annField of
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IR.ACFExpression t -> Just $ AO.String t
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IR.ACFScalar fname -> AO.toOrdered <$> KM.lookup (K.fromText $ G.unName fname) obj
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IR.ACFNestedObject _ nestedFields -> do
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let mkValue :: J.Value -> Maybe AO.Value
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mkValue = \case
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J.Object o -> Just $ mkResponseObject nestedFields o
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J.Array a -> Just $ AO.array $ mapMaybe mkValue $ toList a
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J.Null -> Just AO.Null
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_ -> Nothing
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KM.lookup (K.fromText fieldText) obj >>= mkValue
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mkResponseArray :: J.Value -> AO.Value
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mkResponseArray = \case
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(J.Object o) -> mkResponseObject annFields o
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x -> AO.toOrdered x
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in -- NOTE (Sam): This case would still not allow for aliased fields to be
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-- a part of the response. Also, seeing that none of the other `annField`
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-- types would be caught in the example, I've chosen to leave it as it is.
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-- NOTE: (Pranshi) Bool here is applied to specify if we want to check ActionOutputFields
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-- (in async actions, we have object types, which need to be validated
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-- and ActionOutputField information is not present in `resolveAsyncActionQuery` -
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-- so added a boolean which will make sure that the response is validated)
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if gTypeContains isCustomScalar (unGraphQLType outputType) outputF && shouldCheckOutputField
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then AO.toOrdered $ J.toJSON webhookResponse
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else case webhookResponse of
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J.Array objs -> AO.array $ toList $ fmap mkResponseArray objs
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J.Object obj ->
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mkResponseObject annFields obj
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J.Null -> AO.Null
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_ -> AO.toOrdered $ J.toJSON webhookResponse
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gTypeContains :: (G.GType -> IR.ActionOutputFields -> Bool) -> G.GType -> IR.ActionOutputFields -> Bool
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gTypeContains fun gType aof = case gType of
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t@(G.TypeNamed _ _) -> fun t aof
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(G.TypeList _ expectedType) -> gTypeContains fun expectedType aof
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isCustomScalar :: G.GType -> IR.ActionOutputFields -> Bool
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isCustomScalar (G.TypeNamed _ name) outputF = isJust (lookup (G.unName name) pgScalarTranslations) || (Map.null outputF && (not (isInBuiltScalar (G.unName name))))
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isCustomScalar (G.TypeList _ _) _ = False
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{- Note: [Async action architecture]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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In async actions, acquiring the action result is deferred. The async action mutation is made to
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initiate the action which returns an UUID. The UUID is used to query/subsribe for actions response.
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On mutation, the server makes an action log record in the metadata storage with request headers
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and input arguments. The `asyncActionsProcessor` background thread processes the async actions by executing
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the webhook handler and writing back the response payload or errors if any in the metadata storage.
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When an async action query/subscription is made, the server fetches the relavent data from the
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metadata storage. See Note [Resolving async action query] below.
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-}
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-- | Resolve asynchronous action mutation which returns only the action uuid
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resolveActionMutationAsync ::
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(MonadMetadataStorage m) =>
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IR.AnnActionMutationAsync ->
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[HTTP.Header] ->
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SessionVariables ->
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m ActionId
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resolveActionMutationAsync annAction reqHeaders sessionVariables =
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insertAction actionName sessionVariables reqHeaders inputArgs
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where
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IR.AnnActionMutationAsync actionName _ inputArgs = annAction
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{- Note: [Resolving async action query]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Resolving async action query happens in two steps;
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1. Fetching webhook response from the metadata storage:
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In this step, using @'fetchActionResponse' method of @'MonadMetadataStorage' type class, we fetch
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the webhook response of any async action mutation (See Note [Async action architecture] for more)
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2. Generating client response:
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Generation of appropriate client response happens in two ways based on the availibility of
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relationships on action output object type.
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a. With relationships:- If there are any relationships defined to tables in a source,
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we need to join the rows from the tables. So, we'll generate a SELECT SQL statement from
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a table built virtually from action webhook response fetched in the Step 1 and joining it
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with appropriate tables. Then, we execute this SQL in the source database.
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SELECT .... FROM pg_catalog.jsonb_to_recordset('action webhook response')
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JOIN .... (SELECT ... FROM <source relationship table>)
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b. Without relationships:- In this case, we'll build the response purely in Haskell code from
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the action webhook response fetched in the Step 1.
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-}
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-- TODO: Add tracing here? Avoided now because currently the function is pure
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-- | See Note: [Resolving async action query]
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resolveAsyncActionQuery ::
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UserInfo ->
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IR.AnnActionAsyncQuery ('Postgres 'Vanilla) Void ->
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AsyncActionQueryExecution (IR.UnpreparedValue ('Postgres 'Vanilla))
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resolveAsyncActionQuery userInfo annAction =
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case actionSource of
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IR.ASINoSource -> AAQENoRelationships \actionLogResponse -> runExcept do
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let ActionLogResponse {..} = actionLogResponse
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resolvedFields <- for asyncFields $ \(fieldName, fld) -> do
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let fieldText = getFieldNameTxt fieldName
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(fieldText,) <$> case fld of
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IR.AsyncTypename t -> pure $ AO.String t
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IR.AsyncOutput annFields ->
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fromMaybe AO.Null <$> forM
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_alrResponsePayload
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\response -> makeActionResponseNoRelations annFields outputType Map.empty False <$> decodeValue response
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IR.AsyncId -> pure $ AO.String $ actionIdToText actionId
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IR.AsyncCreatedAt -> pure $ AO.toOrdered $ J.toJSON _alrCreatedAt
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IR.AsyncErrors -> pure $ AO.toOrdered $ J.toJSON _alrErrors
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pure $ encJFromOrderedValue $ AO.object resolvedFields
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IR.ASISource sourceName sourceConfig ->
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let jsonAggSelect = mkJsonAggSelect outputType
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in AAQEOnSourceDB sourceConfig $
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AsyncActionQuerySourceExecution sourceName jsonAggSelect $ \actionLogResponse ->
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let annotatedFields =
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asyncFields <&> second \case
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IR.AsyncTypename t -> RS.AFExpression t
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IR.AsyncOutput annFields ->
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RS.AFComputedField () (ComputedFieldName [nonEmptyTextQQ|__action_computed_field|]) $
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RS.CFSTable jsonAggSelect $
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processOutputSelectionSet TF.AEActionResponsePayload outputType definitionList annFields stringifyNumerics
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IR.AsyncId -> mkAnnFldFromPGCol idColumn
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IR.AsyncCreatedAt -> mkAnnFldFromPGCol createdAtColumn
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IR.AsyncErrors -> mkAnnFldFromPGCol errorsColumn
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jsonbToRecordSet = QualifiedObject "pg_catalog" $ FunctionName "jsonb_to_recordset"
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actionLogInput =
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IR.UVParameter Nothing $
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ColumnValue (ColumnScalar PGJSONB) $
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PGValJSONB $
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Q.JSONB $
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J.toJSON [actionLogResponse]
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functionArgs = FunctionArgsExp [TF.AEInput actionLogInput] mempty
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tableFromExp =
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RS.FromFunction jsonbToRecordSet functionArgs $
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Just
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[idColumn, createdAtColumn, responsePayloadColumn, errorsColumn, sessionVarsColumn]
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tableArguments =
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RS.noSelectArgs
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{ RS._saWhere = Just tableBoolExpression
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}
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tablePermissions = RS.TablePerm annBoolExpTrue Nothing
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in RS.AnnSelectG annotatedFields tableFromExp tablePermissions tableArguments stringifyNumerics Nothing
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where
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IR.AnnActionAsyncQuery _ actionId outputType asyncFields definitionList stringifyNumerics _ actionSource = annAction
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idColumn = (unsafePGCol "id", PGUUID)
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responsePayloadColumn = (unsafePGCol TF.actionResponsePayloadColumn, PGJSONB)
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createdAtColumn = (unsafePGCol "created_at", PGTimeStampTZ)
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errorsColumn = (unsafePGCol "errors", PGJSONB)
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sessionVarsColumn = (unsafePGCol "session_variables", PGJSONB)
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mkAnnFldFromPGCol (column', columnType) =
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RS.mkAnnColumnField column' (ColumnScalar columnType) Nothing Nothing
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tableBoolExpression =
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let actionIdColumnInfo =
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ColumnInfo
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{ ciColumn = fst idColumn,
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ciName = Name._id,
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ciPosition = 0,
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ciType = ColumnScalar (snd idColumn),
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ciIsNullable = False,
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ciDescription = Nothing,
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ciMutability = ColumnMutability False False
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}
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actionIdColumnEq = BoolField $ AVColumn actionIdColumnInfo [AEQ True $ IR.UVLiteral $ S.SELit $ actionIdToText actionId]
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-- TODO: avoid using ColumnInfo
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sessionVarsColumnInfo =
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ColumnInfo
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{ ciColumn = unsafePGCol "session_variables",
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ciName = Name._session_variables,
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ciPosition = 0,
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ciType = ColumnScalar (snd sessionVarsColumn),
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ciIsNullable = True,
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ciDescription = Nothing,
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ciMutability = ColumnMutability False False
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}
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sessionVarValue =
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IR.UVParameter Nothing $
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ColumnValue (ColumnScalar PGJSONB) $
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PGValJSONB $ Q.JSONB $ J.toJSON $ _uiSession userInfo
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sessionVarsColumnEq = BoolField $ AVColumn sessionVarsColumnInfo [AEQ True sessionVarValue]
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in -- For non-admin roles, accessing an async action's response should be allowed only for the user
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-- who initiated the action through mutation. The action's response is accessible for a query/subscription
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-- only when it's session variables are equal to that of action's.
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if (adminRoleName == (_uiRole userInfo))
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then actionIdColumnEq
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else BoolAnd [actionIdColumnEq, sessionVarsColumnEq]
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-- | Process async actions from hdb_catalog.hdb_action_log table. This functions is executed in a background thread.
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-- See Note [Async action architecture] above
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asyncActionsProcessor ::
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forall m.
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( MonadIO m,
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MonadBaseControl IO m,
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LA.Forall (LA.Pure m),
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Tracing.HasReporter m,
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MonadMetadataStorage (MetadataStorageT m)
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) =>
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Env.Environment ->
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L.Logger L.Hasura ->
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IO SchemaCache ->
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STM.TVar (Set LockedActionEventId) ->
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HTTP.Manager ->
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Milliseconds ->
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Maybe GH.GQLQueryText ->
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m (Forever m)
|
|
asyncActionsProcessor env logger getSCFromRef' lockedActionEvents httpManager sleepTime gqlQueryText =
|
|
return $
|
|
Forever () $
|
|
const $ do
|
|
actionCache <- scActions <$> liftIO getSCFromRef'
|
|
let asyncActions =
|
|
Map.filter ((== ActionMutation ActionAsynchronous) . (^. aiDefinition . adType)) actionCache
|
|
unless (Map.null asyncActions) $ do
|
|
-- fetch undelivered action events only when there's at least
|
|
-- one async action present in the schema cache
|
|
asyncInvocationsE <- runMetadataStorageT fetchUndeliveredActionEvents
|
|
asyncInvocations <- liftIO $ onLeft asyncInvocationsE mempty
|
|
-- save the actions that are currently fetched from the DB to
|
|
-- be processed in a TVar (Set LockedActionEventId) and when
|
|
-- the action is processed we remove it from the set. This set
|
|
-- is maintained because on shutdown of the graphql-engine, we
|
|
-- would like to wait for a certain time (see `--graceful-shutdown-time`)
|
|
-- during which to complete all the in-flight actions. So, when this
|
|
-- locked action events set TVar is empty, it will mean that there are
|
|
-- no events that are in the 'processing' state
|
|
saveLockedEvents (map (EventId . actionIdToText . _aliId) asyncInvocations) lockedActionEvents
|
|
LA.mapConcurrently_ (callHandler actionCache) asyncInvocations
|
|
liftIO $ sleep $ milliseconds sleepTime
|
|
where
|
|
callHandler :: ActionCache -> ActionLogItem -> m ()
|
|
callHandler actionCache actionLogItem = Tracing.runTraceT "async actions processor" do
|
|
let ActionLogItem
|
|
actionId
|
|
actionName
|
|
reqHeaders
|
|
sessionVariables
|
|
inputPayload = actionLogItem
|
|
case Map.lookup actionName actionCache of
|
|
Nothing -> return ()
|
|
Just actionInfo -> do
|
|
let definition = _aiDefinition actionInfo
|
|
outputFields = IR.getActionOutputFields $ snd $ _aiOutputType actionInfo
|
|
webhookUrl = _adHandler definition
|
|
forwardClientHeaders = _adForwardClientHeaders definition
|
|
confHeaders = _adHeaders definition
|
|
timeout = _adTimeout definition
|
|
outputType = _adOutputType definition
|
|
actionContext = ActionContext actionName
|
|
metadataRequestTransform = _adRequestTransform definition
|
|
metadataResponseTransform = _adResponseTransform definition
|
|
eitherRes <-
|
|
runExceptT $
|
|
flip runReaderT logger $
|
|
callWebhook
|
|
env
|
|
httpManager
|
|
outputType
|
|
outputFields
|
|
reqHeaders
|
|
confHeaders
|
|
forwardClientHeaders
|
|
webhookUrl
|
|
(ActionWebhookPayload actionContext sessionVariables inputPayload gqlQueryText)
|
|
timeout
|
|
metadataRequestTransform
|
|
metadataResponseTransform
|
|
resE <- runMetadataStorageT $
|
|
setActionStatus actionId $ case eitherRes of
|
|
Left e -> AASError e
|
|
Right (responsePayload, _) -> AASCompleted $ J.toJSON responsePayload
|
|
removeEventFromLockedEvents (EventId (actionIdToText actionId)) lockedActionEvents
|
|
liftIO $ onLeft resE mempty
|
|
|
|
callWebhook ::
|
|
forall m r.
|
|
( MonadIO m,
|
|
MonadError QErr m,
|
|
Tracing.MonadTrace m,
|
|
MonadReader r m,
|
|
Has (L.Logger L.Hasura) r
|
|
) =>
|
|
Env.Environment ->
|
|
HTTP.Manager ->
|
|
GraphQLType ->
|
|
IR.ActionOutputFields ->
|
|
[HTTP.Header] ->
|
|
[HeaderConf] ->
|
|
Bool ->
|
|
EnvRecord ResolvedWebhook ->
|
|
ActionWebhookPayload ->
|
|
Timeout ->
|
|
Maybe RequestTransform ->
|
|
Maybe MetadataResponseTransform ->
|
|
m (ActionWebhookResponse, HTTP.ResponseHeaders)
|
|
callWebhook
|
|
env
|
|
manager
|
|
outputType
|
|
outputFields
|
|
reqHeaders
|
|
confHeaders
|
|
forwardClientHeaders
|
|
resolvedWebhook
|
|
actionWebhookPayload
|
|
timeoutSeconds
|
|
metadataRequestTransform
|
|
metadataResponseTransform = do
|
|
resolvedConfHeaders <- makeHeadersFromConf env confHeaders
|
|
let clientHeaders = if forwardClientHeaders then mkClientHeadersForward reqHeaders else mempty
|
|
-- Using HashMap to avoid duplicate headers between configuration headers
|
|
-- and client headers where configuration headers are preferred
|
|
hdrs = (Map.toList . Map.fromList) (resolvedConfHeaders <> defaultHeaders <> clientHeaders)
|
|
postPayload = J.toJSON actionWebhookPayload
|
|
requestBody = J.encode postPayload
|
|
requestBodySize = BL.length requestBody
|
|
responseTimeout = HTTP.responseTimeoutMicro $ (unTimeout timeoutSeconds) * 1000000
|
|
(EnvRecord webhookEnvName resolvedWebhookValue) = resolvedWebhook
|
|
webhookUrl = unResolvedWebhook resolvedWebhookValue
|
|
sessionVars = Just $ _awpSessionVariables actionWebhookPayload
|
|
|
|
initReq <- liftIO $ HTTP.mkRequestThrow webhookUrl
|
|
|
|
let req =
|
|
initReq
|
|
& set HTTP.method "POST"
|
|
& set HTTP.headers hdrs
|
|
& set HTTP.body (Just requestBody)
|
|
& set HTTP.timeout responseTimeout
|
|
|
|
(transformedReq, transformedReqSize, reqTransformCtx) <- case metadataRequestTransform of
|
|
Nothing -> pure (Nothing, Nothing, Nothing)
|
|
Just RequestTransform {..} ->
|
|
let reqTransformCtx = mkReqTransformCtx webhookUrl sessionVars templateEngine
|
|
in case applyRequestTransform reqTransformCtx requestFields req of
|
|
Left err -> do
|
|
-- Log The Transformation Error
|
|
logger :: L.Logger L.Hasura <- asks getter
|
|
L.unLogger logger $ L.UnstructuredLog L.LevelError (SB.fromLBS $ J.encode err)
|
|
|
|
-- Throw an exception with the Transformation Error
|
|
throw500WithDetail "Request Transformation Failed" $ J.toJSON err
|
|
Right transformedReq ->
|
|
let transformedPayloadSize = HTTP.getReqSize transformedReq
|
|
in pure (Just transformedReq, Just transformedPayloadSize, Just reqTransformCtx)
|
|
|
|
let actualReq = fromMaybe req transformedReq
|
|
|
|
httpResponse <-
|
|
Tracing.tracedHttpRequest actualReq $ \request ->
|
|
liftIO . try $ HTTP.performRequest request manager
|
|
|
|
let requestInfo = ActionRequestInfo webhookEnvName postPayload (confHeaders <> toHeadersConf clientHeaders) transformedReq
|
|
|
|
case httpResponse of
|
|
Left e ->
|
|
throw500WithDetail "http exception when calling webhook" $
|
|
J.toJSON $ ActionInternalError (J.toJSON $ HttpException e) requestInfo Nothing
|
|
Right responseWreq -> do
|
|
-- TODO(SOLOMON): Remove 'wreq'
|
|
let responseBody = responseWreq ^. Wreq.responseBody
|
|
responseBodySize = BL.length responseBody
|
|
actionName = _acName $ _awpAction actionWebhookPayload
|
|
responseStatus = responseWreq ^. Wreq.responseStatus
|
|
mkResponseInfo respBody =
|
|
ActionResponseInfo (HTTP.statusCode responseStatus) respBody $
|
|
toHeadersConf $ responseWreq ^. Wreq.responseHeaders
|
|
|
|
transformedResponseBody <- case metadataResponseTransform of
|
|
Nothing -> pure responseBody
|
|
Just metadataResponseTransform' ->
|
|
let responseTransform = mkResponseTransform metadataResponseTransform'
|
|
engine = respTransformTemplateEngine responseTransform
|
|
responseTransformCtx = buildRespTransformCtx (reqTransformCtx <*> Just actualReq) sessionVars engine (HTTP.responseBody responseWreq)
|
|
in applyResponseTransform responseTransform responseTransformCtx `onLeft` \err -> do
|
|
-- Log The Response Transformation Error
|
|
logger :: L.Logger L.Hasura <- asks getter
|
|
L.unLogger logger $ L.UnstructuredLog L.LevelError (SB.fromLBS $ J.encode err)
|
|
|
|
-- Throw an exception with the Transformation Error
|
|
throw500WithDetail "Response Transformation Failed" $ J.toJSON err
|
|
|
|
-- log the request and response to/from the action handler
|
|
logger :: (L.Logger L.Hasura) <- asks getter
|
|
L.unLogger logger $ ActionHandlerLog req transformedReq requestBodySize transformedReqSize responseBodySize actionName
|
|
|
|
case J.eitherDecode transformedResponseBody of
|
|
Left e -> do
|
|
let responseInfo = mkResponseInfo $ J.String $ bsToTxt $ BL.toStrict responseBody
|
|
throw500WithDetail "not a valid json response from webhook" $
|
|
J.toJSON $
|
|
ActionInternalError (J.toJSON $ "invalid json: " <> e) requestInfo $ Just responseInfo
|
|
Right responseValue -> do
|
|
let responseInfo = mkResponseInfo responseValue
|
|
addInternalToErr e =
|
|
let actionInternalError =
|
|
J.toJSON $
|
|
ActionInternalError (J.String "unexpected response") requestInfo $ Just responseInfo
|
|
in e {qeInternal = Just $ ExtraInternal actionInternalError}
|
|
|
|
if
|
|
| HTTP.statusIsSuccessful responseStatus -> do
|
|
modifyQErr addInternalToErr $ do
|
|
webhookResponse <- decodeValue responseValue
|
|
validateResponse responseValue outputType outputFields
|
|
pure (webhookResponse, mkSetCookieHeaders responseWreq)
|
|
| HTTP.statusIsClientError responseStatus -> do
|
|
ActionWebhookErrorResponse message maybeCode maybeExtensions <-
|
|
modifyQErr addInternalToErr $ decodeValue responseValue
|
|
let code = maybe Unexpected ActionWebhookCode maybeCode
|
|
qErr = QErr [] responseStatus message code (ExtraExtensions <$> maybeExtensions)
|
|
throwError qErr
|
|
| otherwise -> do
|
|
let err =
|
|
J.toJSON $
|
|
"expecting 2xx or 4xx status code, but found "
|
|
++ show (HTTP.statusCode responseStatus)
|
|
throw500WithDetail "internal error" $
|
|
J.toJSON $
|
|
ActionInternalError err requestInfo $ Just responseInfo
|
|
|
|
processOutputSelectionSet ::
|
|
TF.ArgumentExp v ->
|
|
GraphQLType ->
|
|
[(PGCol, PGScalarType)] ->
|
|
IR.ActionFields ->
|
|
Options.StringifyNumbers ->
|
|
RS.AnnSimpleSelectG ('Postgres 'Vanilla) Void v
|
|
processOutputSelectionSet tableRowInput actionOutputType definitionList actionFields strfyNum =
|
|
RS.AnnSelectG annotatedFields selectFrom RS.noTablePermissions RS.noSelectArgs strfyNum Nothing
|
|
where
|
|
annotatedFields = fmap actionFieldToAnnField <$> actionFields
|
|
jsonbToPostgresRecordFunction =
|
|
QualifiedObject "pg_catalog" $
|
|
FunctionName $
|
|
if isListType actionOutputType
|
|
then "jsonb_to_recordset" -- Multirow array response
|
|
else "jsonb_to_record" -- Single object response
|
|
functionArgs = FunctionArgsExp [tableRowInput] mempty
|
|
selectFrom = RS.FromFunction jsonbToPostgresRecordFunction functionArgs $ Just definitionList
|
|
|
|
actionFieldToAnnField :: IR.ActionFieldG Void -> RS.AnnFieldG ('Postgres 'Vanilla) Void v
|
|
actionFieldToAnnField = \case
|
|
IR.ACFScalar asf -> RS.mkAnnColumnField (unsafePGCol $ toTxt asf) (ColumnScalar PGJSON) Nothing Nothing
|
|
IR.ACFExpression txt -> RS.AFExpression txt
|
|
IR.ACFNestedObject fieldName _ -> RS.mkAnnColumnField (unsafePGCol $ toTxt fieldName) (ColumnScalar PGJSON) Nothing Nothing
|
|
|
|
mkJsonAggSelect :: GraphQLType -> JsonAggSelect
|
|
mkJsonAggSelect =
|
|
bool JASSingleObject JASMultipleRows . isListType
|
|
|
|
insertActionTx ::
|
|
ActionName ->
|
|
SessionVariables ->
|
|
[HTTP.Header] ->
|
|
J.Value ->
|
|
Q.TxE QErr ActionId
|
|
insertActionTx actionName sessionVariables httpHeaders inputArgsPayload =
|
|
runIdentity . Q.getRow
|
|
<$> Q.withQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
INSERT INTO
|
|
"hdb_catalog"."hdb_action_log"
|
|
("action_name", "session_variables", "request_headers", "input_payload", "status")
|
|
VALUES
|
|
($1, $2, $3, $4, $5)
|
|
RETURNING "id"
|
|
|]
|
|
( actionName,
|
|
Q.AltJ sessionVariables,
|
|
Q.AltJ $ toHeadersMap httpHeaders,
|
|
Q.AltJ inputArgsPayload,
|
|
"created" :: Text
|
|
)
|
|
False
|
|
where
|
|
toHeadersMap = Map.fromList . map ((bsToTxt . CI.original) *** bsToTxt)
|
|
|
|
fetchUndeliveredActionEventsTx :: Q.TxE QErr [ActionLogItem]
|
|
fetchUndeliveredActionEventsTx =
|
|
map mapEvent
|
|
<$> Q.listQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
update hdb_catalog.hdb_action_log set status = 'processing'
|
|
where
|
|
id in (
|
|
select id from hdb_catalog.hdb_action_log
|
|
where status = 'created'
|
|
for update skip locked limit 10
|
|
)
|
|
returning
|
|
id, action_name, request_headers::json, session_variables::json, input_payload::json
|
|
|]
|
|
()
|
|
False
|
|
where
|
|
mapEvent
|
|
( actionId,
|
|
actionName,
|
|
Q.AltJ headersMap,
|
|
Q.AltJ sessionVariables,
|
|
Q.AltJ inputPayload
|
|
) =
|
|
ActionLogItem actionId actionName (fromHeadersMap headersMap) sessionVariables inputPayload
|
|
|
|
fromHeadersMap = map ((CI.mk . txtToBs) *** txtToBs) . Map.toList
|
|
|
|
setActionStatusTx :: ActionId -> AsyncActionStatus -> Q.TxE QErr ()
|
|
setActionStatusTx actionId = \case
|
|
AASCompleted responsePayload ->
|
|
Q.unitQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
update hdb_catalog.hdb_action_log
|
|
set response_payload = $1, status = 'completed'
|
|
where id = $2
|
|
|]
|
|
(Q.AltJ responsePayload, actionId)
|
|
False
|
|
AASError qerr ->
|
|
Q.unitQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
update hdb_catalog.hdb_action_log
|
|
set errors = $1, status = 'error'
|
|
where id = $2
|
|
|]
|
|
(Q.AltJ qerr, actionId)
|
|
False
|
|
|
|
fetchActionResponseTx :: ActionId -> Q.TxE QErr ActionLogResponse
|
|
fetchActionResponseTx actionId = do
|
|
(ca, rp, errs, Q.AltJ sessVars) <-
|
|
Q.getRow
|
|
<$> Q.withQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
SELECT created_at, response_payload::json, errors::json, session_variables::json
|
|
FROM hdb_catalog.hdb_action_log
|
|
WHERE id = $1
|
|
|]
|
|
(Identity actionId)
|
|
True
|
|
pure $ ActionLogResponse actionId ca (Q.getAltJ <$> rp) (Q.getAltJ <$> errs) sessVars
|
|
|
|
clearActionDataTx :: ActionName -> Q.TxE QErr ()
|
|
clearActionDataTx actionName =
|
|
Q.unitQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
DELETE FROM hdb_catalog.hdb_action_log
|
|
WHERE action_name = $1
|
|
|]
|
|
(Identity actionName)
|
|
True
|
|
|
|
setProcessingActionLogsToPendingTx :: LockedActionIdArray -> Q.TxE QErr ()
|
|
setProcessingActionLogsToPendingTx lockedActions =
|
|
Q.unitQE
|
|
defaultTxErrorHandler
|
|
[Q.sql|
|
|
UPDATE hdb_catalog.hdb_action_log
|
|
SET status = 'created'
|
|
WHERE status = 'processing' AND id = ANY($1::uuid[])
|
|
|]
|
|
(Identity lockedActions)
|
|
False
|