GetVaultAccessPolicy.hs

{-# LANGUAGE DataKinds                   #-}
{-# LANGUAGE DeriveGeneric               #-}
{-# LANGUAGE FlexibleInstances           #-}
{-# LANGUAGE GeneralizedNewtypeDeriving  #-}
{-# LANGUAGE LambdaCase                  #-}
{-# LANGUAGE NoImplicitPrelude           #-}
{-# LANGUAGE OverloadedStrings           #-}
{-# LANGUAGE RecordWildCards             #-}
{-# LANGUAGE TypeFamilies                #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}

-- Module      : Network.AWS.Glacier.GetVaultAccessPolicy
-- Copyright   : (c) 2013-2014 Brendan Hay <brendan.g.hay@gmail.com>
-- License     : This Source Code Form is subject to the terms of
--               the Mozilla Public License, v. 2.0.
--               A copy of the MPL can be found in the LICENSE file or
--               you can obtain it at http://mozilla.org/MPL/2.0/.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : experimental
-- Portability : non-portable (GHC extensions)
--
-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- | This operation retrieves the 'access-policy' subresource set on the vault—for
-- more information on setting this subresource, see <http://docs.aws.amazon.com/amazonglacier/latest/dev/api-SetVaultAccessPolicy.html Set Vault Access Policy(PUT access-policy)>. If there is no access policy set on the vault, the
-- operation returns a '404 Not found' error. For more information about vault
-- access policies, see <http://docs.aws.amazon.com/amazonglacier/latest/dev/vault-access-policy.html Amazon Glacier Access Control with Vault Access Policies>.
--
-- <http://docs.aws.amazon.com/amazonglacier/latest/dev/api-GetVaultAccessPolicy.html>
module Network.AWS.Glacier.GetVaultAccessPolicy
    (
    -- * Request
      GetVaultAccessPolicy
    -- ** Request constructor
    , getVaultAccessPolicy
    -- ** Request lenses
    , gvapAccountId
    , gvapVaultName

    -- * Response
    , GetVaultAccessPolicyResponse
    -- ** Response constructor
    , getVaultAccessPolicyResponse
    -- ** Response lenses
    , gvaprPolicy
    ) where

import Network.AWS.Data (Object)
import Network.AWS.Prelude
import Network.AWS.Request.RestJSON
import Network.AWS.Glacier.Types
import qualified GHC.Exts

data GetVaultAccessPolicy = GetVaultAccessPolicy
    { _gvapAccountId :: Text
    , _gvapVaultName :: Text
    } deriving (Eq, Ord, Read, Show)

-- | 'GetVaultAccessPolicy' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'gvapAccountId' @::@ 'Text'
--
-- * 'gvapVaultName' @::@ 'Text'
--
getVaultAccessPolicy :: Text -- ^ 'gvapAccountId'
                     -> Text -- ^ 'gvapVaultName'
                     -> GetVaultAccessPolicy
getVaultAccessPolicy p1 p2 = GetVaultAccessPolicy
    { _gvapAccountId = p1
    , _gvapVaultName = p2
    }

-- | The 'AccountId' value is the AWS account ID of the account that owns the vault.
-- You can either specify an AWS account ID or optionally a single apos'-'apos
-- (hyphen), in which case Amazon Glacier uses the AWS account ID associated
-- with the credentials used to sign the request. If you use an account ID, do
-- not include any hyphens (apos-apos) in the ID.
gvapAccountId :: Lens' GetVaultAccessPolicy Text
gvapAccountId = lens _gvapAccountId (\s a -> s { _gvapAccountId = a })

-- | The name of the vault.
gvapVaultName :: Lens' GetVaultAccessPolicy Text
gvapVaultName = lens _gvapVaultName (\s a -> s { _gvapVaultName = a })

newtype GetVaultAccessPolicyResponse = GetVaultAccessPolicyResponse
    { _gvaprPolicy :: Maybe VaultAccessPolicy
    } deriving (Eq, Read, Show)

-- | 'GetVaultAccessPolicyResponse' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'gvaprPolicy' @::@ 'Maybe' 'VaultAccessPolicy'
--
getVaultAccessPolicyResponse :: GetVaultAccessPolicyResponse
getVaultAccessPolicyResponse = GetVaultAccessPolicyResponse
    { _gvaprPolicy = Nothing
    }

-- | Contains the returned vault access policy as a JSON string.
gvaprPolicy :: Lens' GetVaultAccessPolicyResponse (Maybe VaultAccessPolicy)
gvaprPolicy = lens _gvaprPolicy (\s a -> s { _gvaprPolicy = a })

instance ToPath GetVaultAccessPolicy where
    toPath GetVaultAccessPolicy{..} = mconcat
        [ "/"
        , toText _gvapAccountId
        , "/vaults/"
        , toText _gvapVaultName
        , "/access-policy"
        ]

instance ToQuery GetVaultAccessPolicy where
    toQuery = const mempty

instance ToHeaders GetVaultAccessPolicy

instance ToJSON GetVaultAccessPolicy where
    toJSON = const (toJSON Empty)

instance AWSRequest GetVaultAccessPolicy where
    type Sv GetVaultAccessPolicy = Glacier
    type Rs GetVaultAccessPolicy = GetVaultAccessPolicyResponse

    request  = get
    response = jsonResponse

instance FromJSON GetVaultAccessPolicyResponse where
    parseJSON = withObject "GetVaultAccessPolicyResponse" $ \o -> GetVaultAccessPolicyResponse
        <$> o .:? "policy"