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107 lines
4.5 KiB
Haskell
107 lines
4.5 KiB
Haskell
{-# LANGUAGE Arrows #-}
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module Hasura.RQL.DDL.Schema.Cache.Permission
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( buildTablePermissions
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, mkPermissionMetadataObject
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) where
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import Hasura.Prelude
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import qualified Data.HashMap.Strict.Extended as M
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import qualified Data.Sequence as Seq
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import Control.Arrow.Extended
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import Data.Aeson
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import qualified Hasura.Incremental as Inc
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import Hasura.Db
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import Hasura.RQL.DDL.Permission
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import Hasura.RQL.DDL.Permission.Internal
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import Hasura.RQL.DDL.Schema.Cache.Common
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import Hasura.RQL.Types
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import Hasura.RQL.Types.Catalog
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import Hasura.Session
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import Hasura.SQL.Text
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import Hasura.SQL.Types
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buildTablePermissions
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:: ( ArrowChoice arr, Inc.ArrowDistribute arr, Inc.ArrowCache m arr
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, ArrowWriter (Seq CollectedInfo) arr, MonadTx m )
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=> ( Inc.Dependency TableCoreCache
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, QualifiedTable
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, FieldInfoMap FieldInfo
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, HashSet CatalogPermission
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) `arr` RolePermInfoMap
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buildTablePermissions = Inc.cache proc (tableCache, tableName, tableFields, tablePermissions) ->
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(| Inc.keyed (\_ rolePermissions -> do
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let (insertPerms, selectPerms, updatePerms, deletePerms) =
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partitionPermissions rolePermissions
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insertPermInfo <- buildPermission -< (tableCache, tableName, tableFields, insertPerms)
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selectPermInfo <- buildPermission -< (tableCache, tableName, tableFields, selectPerms)
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updatePermInfo <- buildPermission -< (tableCache, tableName, tableFields, updatePerms)
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deletePermInfo <- buildPermission -< (tableCache, tableName, tableFields, deletePerms)
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returnA -< RolePermInfo
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{ _permIns = insertPermInfo
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, _permSel = selectPermInfo
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, _permUpd = updatePermInfo
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, _permDel = deletePermInfo
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})
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|) (M.groupOn _cpRole tablePermissions)
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where
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partitionPermissions = flip foldr ([], [], [], []) $
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\perm (insertPerms, selectPerms, updatePerms, deletePerms) -> case _cpPermType perm of
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PTInsert -> (perm:insertPerms, selectPerms, updatePerms, deletePerms)
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PTSelect -> (insertPerms, perm:selectPerms, updatePerms, deletePerms)
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PTUpdate -> (insertPerms, selectPerms, perm:updatePerms, deletePerms)
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PTDelete -> (insertPerms, selectPerms, updatePerms, perm:deletePerms)
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mkPermissionMetadataObject :: CatalogPermission -> MetadataObject
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mkPermissionMetadataObject (CatalogPermission qt rn pt pDef cmnt) =
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let objectId = MOTableObj qt $ MTOPerm rn pt
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definition = toJSON $ WithTable qt $ PermDef rn pDef cmnt
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in MetadataObject objectId definition
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withPermission
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:: (ArrowChoice arr, ArrowWriter (Seq CollectedInfo) arr)
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=> WriterA (Seq SchemaDependency) (ErrorA QErr arr) (a, s) b
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-> arr (a, (CatalogPermission, s)) (Maybe b)
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withPermission f = proc (e, (permission, s)) -> do
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let CatalogPermission tableName roleName permType _ _ = permission
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metadataObject = mkPermissionMetadataObject permission
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schemaObject = SOTableObj tableName $ TOPerm roleName permType
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addPermContext err = "in permission for role " <> roleName <<> ": " <> err
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(| withRecordInconsistency (
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(| withRecordDependencies (
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(| modifyErrA (f -< (e, s))
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|) (addTableContext tableName . addPermContext))
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|) metadataObject schemaObject)
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|) metadataObject
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buildPermission
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:: ( ArrowChoice arr, Inc.ArrowCache m arr
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, ArrowWriter (Seq CollectedInfo) arr
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, MonadTx m, IsPerm a, FromJSON a
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)
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=> ( Inc.Dependency TableCoreCache
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, QualifiedTable
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, FieldInfoMap FieldInfo
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, [CatalogPermission]
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) `arr` Maybe (PermInfo a)
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buildPermission = Inc.cache proc (tableCache, tableName, tableFields, permissions) -> do
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(permissions >- noDuplicates mkPermissionMetadataObject)
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>-> (| traverseA (\permission@(CatalogPermission _ roleName _ pDef _) ->
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(| withPermission (do
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bindErrorA -< when (roleName == adminRoleName) $
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throw400 ConstraintViolation "cannot define permission for admin role"
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perm <- bindErrorA -< decodeValue pDef
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let permDef = PermDef roleName perm Nothing
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(info, dependencies) <- liftEitherA <<< Inc.bindDepend -< runExceptT $
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runTableCoreCacheRT (buildPermInfo tableName tableFields permDef) tableCache
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tellA -< Seq.fromList dependencies
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returnA -< info)
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|) permission) |)
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>-> (\info -> join info >- returnA)
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