graphql-engine/server/src-lib/Hasura/Server/API/Metadata.hs
Vamshi Surabhi a01d1188f2 scaffolding for remote-schemas module
The main aim of the PR is:

1. To set up a module structure for 'remote-schemas' package.
2. Move parts by the remote schema codebase into the new module structure to validate it.

## Notes to the reviewer

Why a PR with large-ish diff?

1. We've been making progress on the MM project but we don't yet know long it is going to take us to get to the first milestone. To understand this better, we need to figure out the unknowns as soon as possible. Hence I've taken a stab at the first two items in the [end-state](https://gist.github.com/0x777/ca2bdc4284d21c3eec153b51dea255c9) document to figure out the unknowns. Unsurprisingly, there are a bunch of issues that we haven't discussed earlier. These are documented in the 'open questions' section.

1. The diff is large but that is only code moved around and I've added a section that documents how things are moved. In addition, there are fair number of PR comments to help with the review process.

## Changes in the PR

### Module structure

Sets up the module structure as follows:

```
Hasura/
  RemoteSchema/
    Metadata/
      Types.hs
    SchemaCache/
      Types.hs
      Permission.hs
      RemoteRelationship.hs
      Build.hs
    MetadataAPI/
      Types.hs
      Execute.hs
```

### 1. Types representing metadata are moved

Types that capture metadata information (currently scattered across several RQL modules) are moved into `Hasura.RemoteSchema.Metadata.Types`.

- This new module only depends on very 'core' modules such as
  `Hasura.Session` for the notion of roles and `Hasura.Incremental` for `Cacheable` typeclass.

- The requirement on database modules is avoided by generalizing the remote schemas metadata to accept an arbitrary 'r' for a remote relationship
  definition.

### 2. SchemaCache related types and build logic have been moved

Types that represent remote schemas information in SchemaCache are moved into `Hasura.RemoteSchema.SchemaCache.Types`.

Similar to `H.RS.Metadata.Types`, this module depends on 'core' modules except for `Hasura.GraphQL.Parser.Variable`. It has something to do with remote relationships but I haven't spent time looking into it. The validation of 'remote relationships to remote schema' is also something that needs to be looked at.

Rips out the logic that builds remote schema's SchemaCache information from the monolithic `buildSchemaCacheRule` and moves it into `Hasura.RemoteSchema.SchemaCache.Build`. Further, the `.SchemaCache.Permission` and `.SchemaCache.RemoteRelationship` have been created from existing modules that capture schema cache building logic for those two components.

This was a fair amount of work. On main, currently remote schema's SchemaCache information is built in two phases - in the first phase, 'permissions' and 'remote relationships' are ignored and in the second phase they are filled in.

While remote relationships can only be resolved after partially resolving sources and other remote schemas, the same isn't true for permissions. Further, most of the work that is done to resolve remote relationships can be moved to the first phase so that the second phase can be a very simple traversal.

This is the approach that was taken - resolve permissions and as much as remote relationships information in the first phase.

### 3. Metadata APIs related types and build logic have been moved

The types that represent remote schema related metadata APIs and the execution logic have been moved to `Hasura.RemoteSchema.MetadataAPI.Types` and `.Execute` modules respectively.

## Open questions:

1. `Hasura.RemoteSchema.Metadata.Types` is so called because I was hoping that all of the metadata related APIs of remote schema can be brought in at `Hasura.RemoteSchema.Metadata.API`. However, as metadata APIs depended on functions from `SchemaCache` module (see [1](ceba6d6226/server/src-lib/Hasura/RQL/DDL/RemoteSchema.hs (L55)) and [2](ceba6d6226/server/src-lib/Hasura/RQL/DDL/RemoteSchema.hs (L91)), it made more sense to create a separate top-level module for `MetadataAPI`s.

   Maybe we can just have `Hasura.RemoteSchema.Metadata` and get rid of the extra nesting or have `Hasura.RemoteSchema.Metadata.{Core,Permission,RemoteRelationship}` if we want to break them down further.

1. `buildRemoteSchemas` in `H.RS.SchemaCache.Build` has the following type:

   ```haskell
   buildRemoteSchemas ::
     ( ArrowChoice arr,
       Inc.ArrowDistribute arr,
       ArrowWriter (Seq CollectedInfo) arr,
       Inc.ArrowCache m arr,
       MonadIO m,
       HasHttpManagerM m,
       Inc.Cacheable remoteRelationshipDefinition,
       ToJSON remoteRelationshipDefinition,
       MonadError QErr m
     ) =>
     Env.Environment ->
     ( (Inc.Dependency (HashMap RemoteSchemaName Inc.InvalidationKey), OrderedRoles),
       [RemoteSchemaMetadataG remoteRelationshipDefinition]
     )
       `arr` HashMap RemoteSchemaName (PartiallyResolvedRemoteSchemaCtxG remoteRelationshipDefinition, MetadataObject)
   ```

   Note the dependence on `CollectedInfo` which is defined as

   ```haskell
   data CollectedInfo
     = CIInconsistency InconsistentMetadata
     | CIDependency
         MetadataObject
         -- ^ for error reporting on missing dependencies
         SchemaObjId
         SchemaDependency
     deriving (Eq)
   ```

   this pretty much means that remote schemas is dependent on types from databases, actions, ....

   How do we fix this? Maybe introduce a typeclass such as `ArrowCollectRemoteSchemaDependencies` which is defined in `Hasura.RemoteSchema` and then implemented in graphql-engine?

1. The dependency on `buildSchemaCacheFor` in `.MetadataAPI.Execute` which has the following signature:

   ```haskell
   buildSchemaCacheFor ::
     (QErrM m, CacheRWM m, MetadataM m) =>
     MetadataObjId ->
     MetadataModifier ->
   ```

   This can be easily resolved if we restrict what the metadata APIs are allowed to do. Currently, they operate in an unfettered access to modify SchemaCache (the `CacheRWM` constraint):

   ```haskell
   runAddRemoteSchema ::
     ( QErrM m,
       CacheRWM m,
       MonadIO m,
       HasHttpManagerM m,
       MetadataM m,
       Tracing.MonadTrace m
     ) =>
     Env.Environment ->
     AddRemoteSchemaQuery ->
     m EncJSON
   ```

   This should instead be changed to restrict remote schema APIs to only modify remote schema metadata (but has access to the remote schemas part of the schema cache), this dependency is completely removed.

   ```haskell
   runAddRemoteSchema ::
     ( QErrM m,
       MonadIO m,
       HasHttpManagerM m,
       MonadReader RemoteSchemasSchemaCache m,
       MonadState RemoteSchemaMetadata m,
       Tracing.MonadTrace m
     ) =>
     Env.Environment ->
     AddRemoteSchemaQuery ->
     m RemoteSchemeMetadataObjId
   ```

   The idea is that the core graphql-engine would call these functions and then call
   `buildSchemaCacheFor`.

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6291
GitOrigin-RevId: 51357148c6404afe70219afa71bd1d59bdf4ffc6
2022-10-21 03:15:04 +00:00

734 lines
31 KiB
Haskell

{-# LANGUAGE ViewPatterns #-}
-- | The RQL metadata query ('/v1/metadata')
module Hasura.Server.API.Metadata
( RQLMetadata,
RQLMetadataV1 (..),
runMetadataQuery,
)
where
import Control.Lens (_Just)
import Control.Monad.Trans.Control (MonadBaseControl)
import Data.Aeson
import Data.Aeson.Casing
import Data.Aeson.Types qualified as A
import Data.Environment qualified as Env
import Data.Has (Has)
import Data.Text qualified as T
import Data.Text.Extended qualified as T
import GHC.Generics.Extended (constrName)
import Hasura.Base.Error
import Hasura.EncJSON
import Hasura.Logging qualified as L
import Hasura.Metadata.Class
import Hasura.Prelude hiding (first)
import Hasura.RQL.DDL.Action
import Hasura.RQL.DDL.ApiLimit
import Hasura.RQL.DDL.ComputedField
import Hasura.RQL.DDL.CustomTypes
import Hasura.RQL.DDL.DataConnector
import Hasura.RQL.DDL.Endpoint
import Hasura.RQL.DDL.EventTrigger
import Hasura.RQL.DDL.GraphqlSchemaIntrospection
import Hasura.RQL.DDL.InheritedRoles
import Hasura.RQL.DDL.Metadata
import Hasura.RQL.DDL.Network
import Hasura.RQL.DDL.Permission
import Hasura.RQL.DDL.QueryCollection
import Hasura.RQL.DDL.QueryTags
import Hasura.RQL.DDL.Relationship
import Hasura.RQL.DDL.Relationship.Rename
import Hasura.RQL.DDL.RemoteRelationship
import Hasura.RQL.DDL.ScheduledTrigger
import Hasura.RQL.DDL.Schema
import Hasura.RQL.DDL.Schema.Source
import Hasura.RQL.DDL.SourceKinds
import Hasura.RQL.DDL.Webhook.Transform.Validation
import Hasura.RQL.Types.Action
import Hasura.RQL.Types.Allowlist
import Hasura.RQL.Types.ApiLimit
import Hasura.RQL.Types.Common
import Hasura.RQL.Types.CustomTypes
import Hasura.RQL.Types.Endpoint
import Hasura.RQL.Types.EventTrigger
import Hasura.RQL.Types.Eventing.Backend
import Hasura.RQL.Types.GraphqlSchemaIntrospection
import Hasura.RQL.Types.Metadata (GetCatalogState, SetCatalogState, emptyMetadataDefaults)
import Hasura.RQL.Types.Metadata.Backend
import Hasura.RQL.Types.Network
import Hasura.RQL.Types.Permission
import Hasura.RQL.Types.QueryCollection
import Hasura.RQL.Types.Roles
import Hasura.RQL.Types.Run
import Hasura.RQL.Types.ScheduledTrigger
import Hasura.RQL.Types.SchemaCache
import Hasura.RQL.Types.SchemaCache.Build
import Hasura.RQL.Types.Source
import Hasura.RemoteSchema.MetadataAPI
import Hasura.SQL.AnyBackend
import Hasura.SQL.Backend
import Hasura.Server.API.Backend
import Hasura.Server.API.Instances ()
import Hasura.Server.Types
import Hasura.Server.Utils (APIVersion (..))
import Hasura.Session
import Hasura.Tracing qualified as Tracing
import Network.HTTP.Client.Manager qualified as HTTP
data RQLMetadataV1
= -- Sources
RMAddSource !(AnyBackend AddSource)
| RMDropSource DropSource
| RMRenameSource !RenameSource
| RMUpdateSource !(AnyBackend UpdateSource)
| RMListSourceKinds !ListSourceKinds
| RMGetSourceKindCapabilities !GetSourceKindCapabilities
| RMGetSourceTables !GetSourceTables
| RMGetTableInfo !GetTableInfo
| -- Tables
RMTrackTable !(AnyBackend TrackTableV2)
| RMUntrackTable !(AnyBackend UntrackTable)
| RMSetTableCustomization !(AnyBackend SetTableCustomization)
| RMSetApolloFederationConfig (AnyBackend SetApolloFederationConfig)
| RMPgSetTableIsEnum !(AnyBackend SetTableIsEnum)
| -- Tables permissions
RMCreateInsertPermission !(AnyBackend (CreatePerm InsPerm))
| RMCreateSelectPermission !(AnyBackend (CreatePerm SelPerm))
| RMCreateUpdatePermission !(AnyBackend (CreatePerm UpdPerm))
| RMCreateDeletePermission !(AnyBackend (CreatePerm DelPerm))
| RMDropInsertPermission !(AnyBackend DropPerm)
| RMDropSelectPermission !(AnyBackend DropPerm)
| RMDropUpdatePermission !(AnyBackend DropPerm)
| RMDropDeletePermission !(AnyBackend DropPerm)
| RMSetPermissionComment !(AnyBackend SetPermComment)
| -- Tables relationships
RMCreateObjectRelationship !(AnyBackend CreateObjRel)
| RMCreateArrayRelationship !(AnyBackend CreateArrRel)
| RMDropRelationship !(AnyBackend DropRel)
| RMSetRelationshipComment !(AnyBackend SetRelComment)
| RMRenameRelationship !(AnyBackend RenameRel)
| -- Tables remote relationships
RMCreateRemoteRelationship !(AnyBackend CreateFromSourceRelationship)
| RMUpdateRemoteRelationship !(AnyBackend CreateFromSourceRelationship)
| RMDeleteRemoteRelationship !(AnyBackend DeleteFromSourceRelationship)
| -- Functions
RMTrackFunction !(AnyBackend TrackFunctionV2)
| RMUntrackFunction !(AnyBackend UnTrackFunction)
| RMSetFunctionCustomization (AnyBackend SetFunctionCustomization)
| -- Functions permissions
RMCreateFunctionPermission !(AnyBackend FunctionPermissionArgument)
| RMDropFunctionPermission !(AnyBackend FunctionPermissionArgument)
| -- Computed fields
RMAddComputedField !(AnyBackend AddComputedField)
| RMDropComputedField !(AnyBackend DropComputedField)
| -- Tables event triggers
RMCreateEventTrigger !(AnyBackend (Unvalidated1 CreateEventTriggerQuery))
| RMDeleteEventTrigger !(AnyBackend DeleteEventTriggerQuery)
| RMRedeliverEvent !(AnyBackend RedeliverEventQuery)
| RMInvokeEventTrigger !(AnyBackend InvokeEventTriggerQuery)
| RMCleanupEventTriggerLog !TriggerLogCleanupConfig
| RMResumeEventTriggerCleanup !TriggerLogCleanupToggleConfig
| RMPauseEventTriggerCleanup !TriggerLogCleanupToggleConfig
| -- Remote schemas
RMAddRemoteSchema !AddRemoteSchemaQuery
| RMUpdateRemoteSchema !AddRemoteSchemaQuery
| RMRemoveRemoteSchema !RemoteSchemaNameQuery
| RMReloadRemoteSchema !RemoteSchemaNameQuery
| RMIntrospectRemoteSchema !RemoteSchemaNameQuery
| -- Remote schemas permissions
RMAddRemoteSchemaPermissions !AddRemoteSchemaPermission
| RMDropRemoteSchemaPermissions !DropRemoteSchemaPermissions
| -- Remote Schema remote relationships
RMCreateRemoteSchemaRemoteRelationship CreateRemoteSchemaRemoteRelationship
| RMUpdateRemoteSchemaRemoteRelationship CreateRemoteSchemaRemoteRelationship
| RMDeleteRemoteSchemaRemoteRelationship DeleteRemoteSchemaRemoteRelationship
| -- Scheduled triggers
RMCreateCronTrigger !(Unvalidated CreateCronTrigger)
| RMDeleteCronTrigger !ScheduledTriggerName
| RMCreateScheduledEvent !CreateScheduledEvent
| RMDeleteScheduledEvent !DeleteScheduledEvent
| RMGetScheduledEvents !GetScheduledEvents
| RMGetEventInvocations !GetEventInvocations
| RMGetCronTriggers
| -- Actions
RMCreateAction !(Unvalidated CreateAction)
| RMDropAction !DropAction
| RMUpdateAction !(Unvalidated UpdateAction)
| RMCreateActionPermission !CreateActionPermission
| RMDropActionPermission !DropActionPermission
| -- Query collections, allow list related
RMCreateQueryCollection !CreateCollection
| RMRenameQueryCollection !RenameCollection
| RMDropQueryCollection !DropCollection
| RMAddQueryToCollection !AddQueryToCollection
| RMDropQueryFromCollection !DropQueryFromCollection
| RMAddCollectionToAllowlist !AllowlistEntry
| RMDropCollectionFromAllowlist !DropCollectionFromAllowlist
| RMUpdateScopeOfCollectionInAllowlist !UpdateScopeOfCollectionInAllowlist
| -- Rest endpoints
RMCreateRestEndpoint !CreateEndpoint
| RMDropRestEndpoint !DropEndpoint
| -- GraphQL Data Connectors
RMDCAddAgent !DCAddAgent
| RMDCDeleteAgent !DCDeleteAgent
| -- Custom types
RMSetCustomTypes !CustomTypes
| -- Api limits
RMSetApiLimits !ApiLimit
| RMRemoveApiLimits
| -- Metrics config
RMSetMetricsConfig !MetricsConfig
| RMRemoveMetricsConfig
| -- Inherited roles
RMAddInheritedRole !InheritedRole
| RMDropInheritedRole !DropInheritedRole
| -- Metadata management
RMReplaceMetadata !ReplaceMetadata
| RMExportMetadata !ExportMetadata
| RMClearMetadata !ClearMetadata
| RMReloadMetadata !ReloadMetadata
| RMGetInconsistentMetadata !GetInconsistentMetadata
| RMDropInconsistentMetadata !DropInconsistentMetadata
| -- Introspection options
RMSetGraphqlSchemaIntrospectionOptions !SetGraphqlIntrospectionOptions
| -- Network
RMAddHostToTLSAllowlist !AddHostToTLSAllowlist
| RMDropHostFromTLSAllowlist !DropHostFromTLSAllowlist
| -- QueryTags
RMSetQueryTagsConfig !SetQueryTagsConfig
| -- Debug
RMDumpInternalState !DumpInternalState
| RMGetCatalogState !GetCatalogState
| RMSetCatalogState !SetCatalogState
| RMTestWebhookTransform !(Unvalidated TestWebhookTransform)
| -- Bulk metadata queries
RMBulk [RQLMetadataRequest]
deriving (Generic)
-- NOTE! If you add a new request type here that is read-only, make sure to
-- update queryModifiesMetadata
instance FromJSON RQLMetadataV1 where
parseJSON = withObject "RQLMetadataV1" \o -> do
queryType <- o .: "type"
let args :: forall a. FromJSON a => A.Parser a
args = o .: "args"
case queryType of
-- backend agnostic
"rename_source" -> RMRenameSource <$> args
"add_remote_schema" -> RMAddRemoteSchema <$> args
"update_remote_schema" -> RMUpdateRemoteSchema <$> args
"remove_remote_schema" -> RMRemoveRemoteSchema <$> args
"reload_remote_schema" -> RMReloadRemoteSchema <$> args
"introspect_remote_schema" -> RMIntrospectRemoteSchema <$> args
"add_remote_schema_permissions" -> RMAddRemoteSchemaPermissions <$> args
"drop_remote_schema_permissions" -> RMDropRemoteSchemaPermissions <$> args
"create_remote_schema_remote_relationship" -> RMCreateRemoteSchemaRemoteRelationship <$> args
"update_remote_schema_remote_relationship" -> RMUpdateRemoteSchemaRemoteRelationship <$> args
"delete_remote_schema_remote_relationship" -> RMDeleteRemoteSchemaRemoteRelationship <$> args
"cleanup_event_trigger_logs" -> RMCleanupEventTriggerLog <$> args
"resume_event_trigger_cleanups" -> RMResumeEventTriggerCleanup <$> args
"pause_event_trigger_cleanups" -> RMPauseEventTriggerCleanup <$> args
"create_cron_trigger" -> RMCreateCronTrigger <$> args
"delete_cron_trigger" -> RMDeleteCronTrigger <$> args
"create_scheduled_event" -> RMCreateScheduledEvent <$> args
"delete_scheduled_event" -> RMDeleteScheduledEvent <$> args
"get_scheduled_events" -> RMGetScheduledEvents <$> args
"get_event_invocations" -> RMGetEventInvocations <$> args
"get_cron_triggers" -> pure RMGetCronTriggers
"create_action" -> RMCreateAction <$> args
"drop_action" -> RMDropAction <$> args
"update_action" -> RMUpdateAction <$> args
"create_action_permission" -> RMCreateActionPermission <$> args
"drop_action_permission" -> RMDropActionPermission <$> args
"create_query_collection" -> RMCreateQueryCollection <$> args
"rename_query_collection" -> RMRenameQueryCollection <$> args
"drop_query_collection" -> RMDropQueryCollection <$> args
"add_query_to_collection" -> RMAddQueryToCollection <$> args
"drop_query_from_collection" -> RMDropQueryFromCollection <$> args
"add_collection_to_allowlist" -> RMAddCollectionToAllowlist <$> args
"drop_collection_from_allowlist" -> RMDropCollectionFromAllowlist <$> args
"update_scope_of_collection_in_allowlist" -> RMUpdateScopeOfCollectionInAllowlist <$> args
"create_rest_endpoint" -> RMCreateRestEndpoint <$> args
"drop_rest_endpoint" -> RMDropRestEndpoint <$> args
"dc_add_agent" -> RMDCAddAgent <$> args
"dc_delete_agent" -> RMDCDeleteAgent <$> args
"list_source_kinds" -> RMListSourceKinds <$> args
"get_source_kind_capabilities" -> RMGetSourceKindCapabilities <$> args
"get_source_tables" -> RMGetSourceTables <$> args
"get_table_info" -> RMGetTableInfo <$> args
"set_custom_types" -> RMSetCustomTypes <$> args
"set_api_limits" -> RMSetApiLimits <$> args
"remove_api_limits" -> pure RMRemoveApiLimits
"set_metrics_config" -> RMSetMetricsConfig <$> args
"remove_metrics_config" -> pure RMRemoveMetricsConfig
"add_inherited_role" -> RMAddInheritedRole <$> args
"drop_inherited_role" -> RMDropInheritedRole <$> args
"replace_metadata" -> RMReplaceMetadata <$> args
"export_metadata" -> RMExportMetadata <$> args
"clear_metadata" -> RMClearMetadata <$> args
"reload_metadata" -> RMReloadMetadata <$> args
"get_inconsistent_metadata" -> RMGetInconsistentMetadata <$> args
"drop_inconsistent_metadata" -> RMDropInconsistentMetadata <$> args
"add_host_to_tls_allowlist" -> RMAddHostToTLSAllowlist <$> args
"drop_host_from_tls_allowlist" -> RMDropHostFromTLSAllowlist <$> args
"dump_internal_state" -> RMDumpInternalState <$> args
"get_catalog_state" -> RMGetCatalogState <$> args
"set_catalog_state" -> RMSetCatalogState <$> args
"set_graphql_schema_introspection_options" -> RMSetGraphqlSchemaIntrospectionOptions <$> args
"test_webhook_transform" -> RMTestWebhookTransform <$> args
"set_query_tags" -> RMSetQueryTagsConfig <$> args
"bulk" -> RMBulk <$> args
-- Backend prefixed metadata actions:
_ -> do
-- 1) Parse the backend source kind and metadata command:
(backendSourceKind, cmd) <- parseQueryType queryType
dispatchAnyBackend @BackendAPI backendSourceKind \(backendSourceKind' :: BackendSourceKind b) -> do
-- 2) Parse the args field:
argValue <- args
-- 2) Attempt to run all the backend specific command parsers against the source kind, cmd, and arg:
-- NOTE: If parsers succeed then this will pick out the first successful one.
command <- choice <$> sequenceA [p backendSourceKind' cmd argValue | p <- metadataV1CommandParsers @b]
onNothing command $
fail $
"unknown metadata command \""
<> T.unpack cmd
<> "\" for backend "
<> T.unpack (T.toTxt backendSourceKind')
-- | Parse the Metadata API action type returning a tuple of the
-- 'BackendSourceKind' and the action suffix.
--
-- For example: @"pg_add_source"@ parses as @(PostgresVanillaValue, "add_source")@
parseQueryType :: MonadFail m => Text -> m (AnyBackend BackendSourceKind, Text)
parseQueryType queryType =
let (prefix, T.drop 1 -> cmd) = T.breakOn "_" queryType
in (,cmd)
<$> backendSourceKindFromText prefix
`onNothing` fail
( "unknown metadata command \""
<> T.unpack queryType
<> "\"; \""
<> T.unpack prefix
<> "\" was not recognized as a valid backend name"
)
data RQLMetadataV2
= RMV2ReplaceMetadata !ReplaceMetadataV2
| RMV2ExportMetadata !ExportMetadata
deriving (Generic)
instance FromJSON RQLMetadataV2 where
parseJSON =
genericParseJSON $
defaultOptions
{ constructorTagModifier = snakeCase . drop 4,
sumEncoding = TaggedObject "type" "args"
}
data RQLMetadataRequest
= RMV1 !RQLMetadataV1
| RMV2 !RQLMetadataV2
instance FromJSON RQLMetadataRequest where
parseJSON = withObject "RQLMetadataRequest" $ \o -> do
version <- o .:? "version" .!= VIVersion1
let val = Object o
case version of
VIVersion1 -> RMV1 <$> parseJSON val
VIVersion2 -> RMV2 <$> parseJSON val
-- | The payload for the @/v1/metadata@ endpoint. See:
--
-- https://hasura.io/docs/latest/graphql/core/api-reference/metadata-api/index/
data RQLMetadata = RQLMetadata
{ _rqlMetadataResourceVersion :: !(Maybe MetadataResourceVersion),
_rqlMetadata :: !RQLMetadataRequest
}
instance FromJSON RQLMetadata where
parseJSON = withObject "RQLMetadata" $ \o -> do
_rqlMetadataResourceVersion <- o .:? "resource_version"
_rqlMetadata <- parseJSON $ Object o
pure RQLMetadata {..}
runMetadataQuery ::
( MonadIO m,
MonadBaseControl IO m,
Tracing.MonadTrace m,
MonadMetadataStorage m,
MonadResolveSource m,
MonadEventLogCleanup m
) =>
Env.Environment ->
L.Logger L.Hasura ->
InstanceId ->
UserInfo ->
HTTP.Manager ->
ServerConfigCtx ->
RebuildableSchemaCache ->
RQLMetadata ->
m (EncJSON, RebuildableSchemaCache)
runMetadataQuery env logger instanceId userInfo httpManager serverConfigCtx schemaCache RQLMetadata {..} = do
(metadata, currentResourceVersion) <- Tracing.trace "fetchMetadata" fetchMetadata
let exportsMetadata = \case
RMV1 (RMExportMetadata _) -> True
RMV2 (RMV2ExportMetadata _) -> True
_ -> False
metadataDefaults =
if (exportsMetadata _rqlMetadata)
then emptyMetadataDefaults
else _sccMetadataDefaults serverConfigCtx
((r, modMetadata), modSchemaCache, cacheInvalidations) <-
runMetadataQueryM env currentResourceVersion _rqlMetadata
& flip runReaderT logger
& runMetadataT metadata metadataDefaults
& runCacheRWT schemaCache
& peelRun (RunCtx userInfo httpManager serverConfigCtx)
& runExceptT
& liftEitherM
-- set modified metadata in storage
if queryModifiesMetadata _rqlMetadata
then case (_sccMaintenanceMode serverConfigCtx, _sccReadOnlyMode serverConfigCtx) of
(MaintenanceModeDisabled, ReadOnlyModeDisabled) -> do
-- set modified metadata in storage
newResourceVersion <-
Tracing.trace "setMetadata" $
setMetadata (fromMaybe currentResourceVersion _rqlMetadataResourceVersion) modMetadata
-- notify schema cache sync
Tracing.trace "notifySchemaCacheSync" $
notifySchemaCacheSync newResourceVersion instanceId cacheInvalidations
(_, modSchemaCache', _) <-
Tracing.trace "setMetadataResourceVersionInSchemaCache" $
setMetadataResourceVersionInSchemaCache newResourceVersion
& runCacheRWT modSchemaCache
& peelRun (RunCtx userInfo httpManager serverConfigCtx)
& runExceptT
& liftEitherM
pure (r, modSchemaCache')
(MaintenanceModeEnabled (), ReadOnlyModeDisabled) ->
throw500 "metadata cannot be modified in maintenance mode"
(MaintenanceModeDisabled, ReadOnlyModeEnabled) ->
throw400 NotSupported "metadata cannot be modified in read-only mode"
(MaintenanceModeEnabled (), ReadOnlyModeEnabled) ->
throw500 "metadata cannot be modified in maintenance mode"
else pure (r, modSchemaCache)
queryModifiesMetadata :: RQLMetadataRequest -> Bool
queryModifiesMetadata = \case
RMV1 q ->
case q of
RMRedeliverEvent _ -> False
RMInvokeEventTrigger _ -> False
RMGetInconsistentMetadata _ -> False
RMIntrospectRemoteSchema _ -> False
RMDumpInternalState _ -> False
RMSetCatalogState _ -> False
RMGetCatalogState _ -> False
RMExportMetadata _ -> False
RMGetEventInvocations _ -> False
RMGetCronTriggers -> False
RMGetScheduledEvents _ -> False
RMCreateScheduledEvent _ -> False
RMDeleteScheduledEvent _ -> False
RMTestWebhookTransform _ -> False
RMGetSourceKindCapabilities _ -> False
RMListSourceKinds _ -> False
RMGetSourceTables _ -> False
RMGetTableInfo _ -> False
RMBulk qs -> any queryModifiesMetadata qs
-- We used to assume that the fallthrough was True,
-- but it is better to be explicit here to warn when new constructors are added.
RMAddSource _ -> True
RMDropSource _ -> True
RMRenameSource _ -> True
RMUpdateSource _ -> True
RMTrackTable _ -> True
RMUntrackTable _ -> True
RMSetTableCustomization _ -> True
RMSetApolloFederationConfig _ -> True
RMPgSetTableIsEnum _ -> True
RMCreateInsertPermission _ -> True
RMCreateSelectPermission _ -> True
RMCreateUpdatePermission _ -> True
RMCreateDeletePermission _ -> True
RMDropInsertPermission _ -> True
RMDropSelectPermission _ -> True
RMDropUpdatePermission _ -> True
RMDropDeletePermission _ -> True
RMSetPermissionComment _ -> True
RMCreateObjectRelationship _ -> True
RMCreateArrayRelationship _ -> True
RMDropRelationship _ -> True
RMSetRelationshipComment _ -> True
RMRenameRelationship _ -> True
RMCreateRemoteRelationship _ -> True
RMUpdateRemoteRelationship _ -> True
RMDeleteRemoteRelationship _ -> True
RMTrackFunction _ -> True
RMUntrackFunction _ -> True
RMSetFunctionCustomization _ -> True
RMCreateFunctionPermission _ -> True
RMDropFunctionPermission _ -> True
RMAddComputedField _ -> True
RMDropComputedField _ -> True
RMCreateEventTrigger _ -> True
RMDeleteEventTrigger _ -> True
RMCleanupEventTriggerLog _ -> True
RMResumeEventTriggerCleanup _ -> True
RMPauseEventTriggerCleanup _ -> True
RMAddRemoteSchema _ -> True
RMUpdateRemoteSchema _ -> True
RMRemoveRemoteSchema _ -> True
RMReloadRemoteSchema _ -> True
RMAddRemoteSchemaPermissions _ -> True
RMDropRemoteSchemaPermissions _ -> True
RMCreateRemoteSchemaRemoteRelationship _ -> True
RMUpdateRemoteSchemaRemoteRelationship _ -> True
RMDeleteRemoteSchemaRemoteRelationship _ -> True
RMCreateCronTrigger _ -> True
RMDeleteCronTrigger _ -> True
RMCreateAction _ -> True
RMDropAction _ -> True
RMUpdateAction _ -> True
RMCreateActionPermission _ -> True
RMDropActionPermission _ -> True
RMCreateQueryCollection _ -> True
RMRenameQueryCollection _ -> True
RMDropQueryCollection _ -> True
RMAddQueryToCollection _ -> True
RMDropQueryFromCollection _ -> True
RMAddCollectionToAllowlist _ -> True
RMDropCollectionFromAllowlist _ -> True
RMUpdateScopeOfCollectionInAllowlist _ -> True
RMCreateRestEndpoint _ -> True
RMDropRestEndpoint _ -> True
RMDCAddAgent _ -> True
RMDCDeleteAgent _ -> True
RMSetCustomTypes _ -> True
RMSetApiLimits _ -> True
RMRemoveApiLimits -> True
RMSetMetricsConfig _ -> True
RMRemoveMetricsConfig -> True
RMAddInheritedRole _ -> True
RMDropInheritedRole _ -> True
RMReplaceMetadata _ -> True
RMClearMetadata _ -> True
RMReloadMetadata _ -> True
RMDropInconsistentMetadata _ -> True
RMSetGraphqlSchemaIntrospectionOptions _ -> True
RMAddHostToTLSAllowlist _ -> True
RMDropHostFromTLSAllowlist _ -> True
RMSetQueryTagsConfig _ -> True
RMV2 q ->
case q of
RMV2ExportMetadata _ -> False
_ -> True
runMetadataQueryM ::
( MonadIO m,
MonadBaseControl IO m,
CacheRWM m,
Tracing.MonadTrace m,
UserInfoM m,
HTTP.HasHttpManagerM m,
MetadataM m,
MonadMetadataStorageQueryAPI m,
HasServerConfigCtx m,
MonadReader r m,
Has (L.Logger L.Hasura) r,
MonadEventLogCleanup m
) =>
Env.Environment ->
MetadataResourceVersion ->
RQLMetadataRequest ->
m EncJSON
runMetadataQueryM env currentResourceVersion =
withPathK "args" . \case
-- NOTE: This is a good place to install tracing, since it's involved in
-- the recursive case via "bulk":
RMV1 q ->
Tracing.trace ("v1 " <> T.pack (constrName q)) $
runMetadataQueryV1M env currentResourceVersion q
RMV2 q ->
Tracing.trace ("v2 " <> T.pack (constrName q)) $
runMetadataQueryV2M currentResourceVersion q
runMetadataQueryV1M ::
forall m r.
( MonadIO m,
MonadBaseControl IO m,
CacheRWM m,
Tracing.MonadTrace m,
UserInfoM m,
HTTP.HasHttpManagerM m,
MetadataM m,
MonadMetadataStorageQueryAPI m,
HasServerConfigCtx m,
MonadReader r m,
Has (L.Logger L.Hasura) r,
MonadEventLogCleanup m
) =>
Env.Environment ->
MetadataResourceVersion ->
RQLMetadataV1 ->
m EncJSON
runMetadataQueryV1M env currentResourceVersion = \case
RMAddSource q -> dispatchMetadata runAddSource q
RMDropSource q -> runDropSource q
RMRenameSource q -> runRenameSource q
RMUpdateSource q -> dispatchMetadata runUpdateSource q
RMListSourceKinds q -> runListSourceKinds q
RMGetSourceKindCapabilities q -> runGetSourceKindCapabilities q
RMGetSourceTables q -> runGetSourceTables q
RMGetTableInfo q -> runGetTableInfo q
RMTrackTable q -> dispatchMetadata runTrackTableV2Q q
RMUntrackTable q -> dispatchMetadataAndEventTrigger runUntrackTableQ q
RMSetFunctionCustomization q -> dispatchMetadata runSetFunctionCustomization q
RMSetTableCustomization q -> dispatchMetadata runSetTableCustomization q
RMSetApolloFederationConfig q -> dispatchMetadata runSetApolloFederationConfig q
RMPgSetTableIsEnum q -> dispatchMetadata runSetExistingTableIsEnumQ q
RMCreateInsertPermission q -> dispatchMetadata runCreatePerm q
RMCreateSelectPermission q -> dispatchMetadata runCreatePerm q
RMCreateUpdatePermission q -> dispatchMetadata runCreatePerm q
RMCreateDeletePermission q -> dispatchMetadata runCreatePerm q
RMDropInsertPermission q -> dispatchMetadata (runDropPerm PTInsert) q
RMDropSelectPermission q -> dispatchMetadata (runDropPerm PTSelect) q
RMDropUpdatePermission q -> dispatchMetadata (runDropPerm PTUpdate) q
RMDropDeletePermission q -> dispatchMetadata (runDropPerm PTDelete) q
RMSetPermissionComment q -> dispatchMetadata runSetPermComment q
RMCreateObjectRelationship q -> dispatchMetadata (runCreateRelationship ObjRel . unCreateObjRel) q
RMCreateArrayRelationship q -> dispatchMetadata (runCreateRelationship ArrRel . unCreateArrRel) q
RMDropRelationship q -> dispatchMetadata runDropRel q
RMSetRelationshipComment q -> dispatchMetadata runSetRelComment q
RMRenameRelationship q -> dispatchMetadata runRenameRel q
RMCreateRemoteRelationship q -> dispatchMetadata runCreateRemoteRelationship q
RMUpdateRemoteRelationship q -> dispatchMetadata runUpdateRemoteRelationship q
RMDeleteRemoteRelationship q -> dispatchMetadata runDeleteRemoteRelationship q
RMTrackFunction q -> dispatchMetadata runTrackFunctionV2 q
RMUntrackFunction q -> dispatchMetadata runUntrackFunc q
RMCreateFunctionPermission q -> dispatchMetadata runCreateFunctionPermission q
RMDropFunctionPermission q -> dispatchMetadata runDropFunctionPermission q
RMAddComputedField q -> dispatchMetadata runAddComputedField q
RMDropComputedField q -> dispatchMetadata runDropComputedField q
RMCreateEventTrigger q ->
dispatchMetadataAndEventTrigger
( validateTransforms
(unUnvalidate1 . cetqRequestTransform . _Just)
(runCreateEventTriggerQuery . _unUnvalidate1)
)
q
RMDeleteEventTrigger q -> dispatchMetadataAndEventTrigger runDeleteEventTriggerQuery q
RMRedeliverEvent q -> dispatchEventTrigger runRedeliverEvent q
RMInvokeEventTrigger q -> dispatchEventTrigger runInvokeEventTrigger q
RMCleanupEventTriggerLog q -> runCleanupEventTriggerLog q
RMResumeEventTriggerCleanup q -> runEventTriggerResumeCleanup q
RMPauseEventTriggerCleanup q -> runEventTriggerPauseCleanup q
RMAddRemoteSchema q -> runAddRemoteSchema env q
RMUpdateRemoteSchema q -> runUpdateRemoteSchema env q
RMRemoveRemoteSchema q -> runRemoveRemoteSchema q
RMReloadRemoteSchema q -> runReloadRemoteSchema q
RMIntrospectRemoteSchema q -> runIntrospectRemoteSchema q
RMAddRemoteSchemaPermissions q -> runAddRemoteSchemaPermissions q
RMDropRemoteSchemaPermissions q -> runDropRemoteSchemaPermissions q
RMCreateRemoteSchemaRemoteRelationship q -> runCreateRemoteSchemaRemoteRelationship q
RMUpdateRemoteSchemaRemoteRelationship q -> runUpdateRemoteSchemaRemoteRelationship q
RMDeleteRemoteSchemaRemoteRelationship q -> runDeleteRemoteSchemaRemoteRelationship q
RMCreateCronTrigger q ->
validateTransforms
(unUnvalidate . cctRequestTransform . _Just)
(runCreateCronTrigger . _unUnvalidate)
q
RMDeleteCronTrigger q -> runDeleteCronTrigger q
RMCreateScheduledEvent q -> runCreateScheduledEvent q
RMDeleteScheduledEvent q -> runDeleteScheduledEvent q
RMGetScheduledEvents q -> runGetScheduledEvents q
RMGetEventInvocations q -> runGetEventInvocations q
RMGetCronTriggers -> runGetCronTriggers
RMCreateAction q ->
validateTransforms
(unUnvalidate . caDefinition . adRequestTransform . _Just)
(runCreateAction . _unUnvalidate)
q
RMDropAction q -> runDropAction q
RMUpdateAction q ->
validateTransforms
(unUnvalidate . uaDefinition . adRequestTransform . _Just)
(runUpdateAction . _unUnvalidate)
q
RMCreateActionPermission q -> runCreateActionPermission q
RMDropActionPermission q -> runDropActionPermission q
RMCreateQueryCollection q -> runCreateCollection q
RMRenameQueryCollection q -> runRenameCollection q
RMDropQueryCollection q -> runDropCollection q
RMAddQueryToCollection q -> runAddQueryToCollection q
RMDropQueryFromCollection q -> runDropQueryFromCollection q
RMAddCollectionToAllowlist q -> runAddCollectionToAllowlist q
RMDropCollectionFromAllowlist q -> runDropCollectionFromAllowlist q
RMUpdateScopeOfCollectionInAllowlist q -> runUpdateScopeOfCollectionInAllowlist q
RMCreateRestEndpoint q -> runCreateEndpoint q
RMDropRestEndpoint q -> runDropEndpoint q
RMDCAddAgent q -> runAddDataConnectorAgent q
RMDCDeleteAgent q -> runDeleteDataConnectorAgent q
RMSetCustomTypes q -> runSetCustomTypes q
RMSetApiLimits q -> runSetApiLimits q
RMRemoveApiLimits -> runRemoveApiLimits
RMSetMetricsConfig q -> runSetMetricsConfig q
RMRemoveMetricsConfig -> runRemoveMetricsConfig
RMAddInheritedRole q -> runAddInheritedRole q
RMDropInheritedRole q -> runDropInheritedRole q
RMReplaceMetadata q -> runReplaceMetadata q
RMExportMetadata q -> runExportMetadata q
RMClearMetadata q -> runClearMetadata q
RMReloadMetadata q -> runReloadMetadata q
RMGetInconsistentMetadata q -> runGetInconsistentMetadata q
RMDropInconsistentMetadata q -> runDropInconsistentMetadata q
RMSetGraphqlSchemaIntrospectionOptions q -> runSetGraphqlSchemaIntrospectionOptions q
RMAddHostToTLSAllowlist q -> runAddHostToTLSAllowlist q
RMDropHostFromTLSAllowlist q -> runDropHostFromTLSAllowlist q
RMDumpInternalState q -> runDumpInternalState q
RMGetCatalogState q -> runGetCatalogState q
RMSetCatalogState q -> runSetCatalogState q
RMTestWebhookTransform q ->
validateTransforms
(unUnvalidate . twtTransformer)
(runTestWebhookTransform . _unUnvalidate)
q
RMSetQueryTagsConfig q -> runSetQueryTagsConfig q
RMBulk q -> encJFromList <$> indexedMapM (runMetadataQueryM env currentResourceVersion) q
where
dispatchMetadata ::
(forall b. BackendMetadata b => i b -> a) ->
AnyBackend i ->
a
dispatchMetadata f x = dispatchAnyBackend @BackendMetadata x f
dispatchEventTrigger :: (forall b. BackendEventTrigger b => i b -> a) -> AnyBackend i -> a
dispatchEventTrigger f x = dispatchAnyBackend @BackendEventTrigger x f
dispatchMetadataAndEventTrigger ::
(forall b. (BackendMetadata b, BackendEventTrigger b) => i b -> a) ->
AnyBackend i ->
a
dispatchMetadataAndEventTrigger f x = dispatchAnyBackendWithTwoConstraints @BackendMetadata @BackendEventTrigger x f
runMetadataQueryV2M ::
( MonadIO m,
CacheRWM m,
MonadBaseControl IO m,
MetadataM m,
MonadMetadataStorageQueryAPI m,
MonadReader r m,
Has (L.Logger L.Hasura) r,
MonadEventLogCleanup m
) =>
MetadataResourceVersion ->
RQLMetadataV2 ->
m EncJSON
runMetadataQueryV2M currentResourceVersion = \case
RMV2ReplaceMetadata q -> runReplaceMetadataV2 q
RMV2ExportMetadata q -> runExportMetadataV2 currentResourceVersion q