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121 lines
3.5 KiB
Haskell
121 lines
3.5 KiB
Haskell
module Hasura.RQL.DDL.Permission.Internal where
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import Hasura.Prelude
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import qualified Data.HashMap.Strict as M
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import qualified Data.Text as T
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import Control.Lens hiding ((.=))
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import Data.Aeson.TH
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import Data.Aeson.Types
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import Data.Text.Extended
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import Hasura.Backends.Postgres.Translate.BoolExp
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import Hasura.Base.Error
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import Hasura.RQL.Types
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import Hasura.Server.Utils
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import Hasura.Session
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convColSpec :: FieldInfoMap (FieldInfo b) -> PermColSpec b -> [Column b]
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convColSpec _ (PCCols cols) = cols
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convColSpec cim PCStar = map pgiColumn $ getCols cim
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permissionIsDefined
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:: Maybe (RolePermInfo backend) -> PermAccessor backend a -> Bool
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permissionIsDefined rpi pa =
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isJust $ join $ rpi ^? _Just.permAccToLens pa
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assertPermDefined
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:: (Backend backend, MonadError QErr m)
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=> RoleName
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-> PermAccessor backend a
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-> TableInfo backend
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-> m ()
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assertPermDefined role pa tableInfo =
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unless (permissionIsDefined rpi pa) $ throw400 PermissionDenied $ mconcat
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[ "'" <> tshow (permAccToType pa) <> "'"
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, " permission on " <>> tableInfoName tableInfo
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, " for role " <>> role
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, " does not exist"
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]
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where
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rpi = M.lookup role $ _tiRolePermInfoMap tableInfo
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askPermInfo
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:: (Backend backend, MonadError QErr m)
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=> TableInfo backend
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-> RoleName
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-> PermAccessor backend c
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-> m c
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askPermInfo tabInfo roleName pa =
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(M.lookup roleName rpim >>= (^. permAccToLens pa))
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`onNothing`
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throw400 PermissionDenied
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(mconcat
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[ pt <> " permission on " <>> tableInfoName tabInfo
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, " for role " <>> roleName
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, " does not exist"
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])
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where
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pt = permTypeToCode $ permAccToType pa
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rpim = _tiRolePermInfoMap tabInfo
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type CreatePerm b a = WithTable b (PermDef a)
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data CreatePermP1Res a
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= CreatePermP1Res
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{ cprInfo :: !a
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, cprDeps :: ![SchemaDependency]
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} deriving (Show, Eq)
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procBoolExp
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:: (QErrM m, TableCoreInfoRM b m, BackendMetadata b)
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=> SourceName
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-> TableName b
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-> FieldInfoMap (FieldInfo b)
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-> BoolExp b
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-> m (AnnBoolExpPartialSQL b, [SchemaDependency])
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procBoolExp source tn fieldInfoMap be = do
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abe <- annBoolExp parseCollectableType tn fieldInfoMap $ unBoolExp be
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let deps = getBoolExpDeps source tn abe
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return (abe, deps)
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getDepHeadersFromVal :: Value -> [Text]
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getDepHeadersFromVal val = case val of
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Object o -> parseObject o
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_ -> parseOnlyString val
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where
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parseOnlyString v = case v of
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(String t)
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| isSessionVariable t -> [T.toLower t]
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| isReqUserId t -> [userIdHeader]
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| otherwise -> []
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_ -> []
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parseObject o =
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concatMap getDepHeadersFromVal (M.elems o)
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getDependentHeaders :: BoolExp b -> [Text]
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getDependentHeaders (BoolExp boolExp) =
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flip foldMap boolExp $ \(ColExp _ v) -> getDepHeadersFromVal v
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data DropPerm b a
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= DropPerm
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{ dipSource :: !SourceName
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, dipTable :: !(TableName b)
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, dipRole :: !RoleName
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} deriving (Generic)
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deriving instance (Backend b) => Show (DropPerm b a)
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deriving instance (Backend b) => Eq (DropPerm b a)
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instance (Backend b) => ToJSON (DropPerm b a) where
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toJSON = genericToJSON hasuraJSON{omitNothingFields=True}
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instance (Backend b) => FromJSON (DropPerm b a) where
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parseJSON = withObject "DropPerm" $ \o ->
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DropPerm
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<$> o .:? "source" .!= defaultSource
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<*> o .: "table"
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<*> o .: "role"
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type family PermInfo (b :: BackendType) a = r | r -> a
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