// Copyright 2014 The Cockroach Authors.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or

// implied. See the License for the specific language governing

// permissions and limitations under the License. See the AUTHORS file

// for names of contributors.

//

// Author: Bram Gruneir (bram+code@cockroachlabs.com)

package server

import (

"net/http"

"github.com/cockroachdb/cockroach/client"

"github.com/cockroachdb/cockroach/keys"

"github.com/cockroachdb/cockroach/proto"

)

// A permHandler implements the adminHandler interface.

type permHandler struct {

db *client.DB // Key-value database client

}

// Put writes a perm config for the specified key prefix (which is treated as

// a key). The perm config is parsed from the input "body". The perm config is

// stored gob-encoded. The specified body must validly parse into a

// perm config struct.

func (ph *permHandler) Put(path string, body []byte, r *http.Request) error {

return putConfig(ph.db, keys.ConfigPermissionPrefix, &proto.PermConfig{},

path, body, r, nil)

}

// Get retrieves the perm configuration for the specified key. If the

// key is empty, all perm configurations are returned. Otherwise, the

// leading "/" path delimiter is stripped and the perm configuration

// matching the remainder is retrieved. Note that this will retrieve

// the default perm config if "key" is equal to "/", and will list all

// configs if "key" is equal to "". The body result contains

// JSON-formatted output for a listing of keys and JSON-formatted

// output for retrieval of a perm config.

func (ph *permHandler) Get(path string, r *http.Request) ([]byte, string, error) {

return getConfig(ph.db, keys.ConfigPermissionPrefix, &proto.PermConfig{}, path, r)

}

// Delete removes the perm config specified by key.

func (ph *permHandler) Delete(path string, r *http.Request) error {

return deleteConfig(ph.db, keys.ConfigPermissionPrefix, path, r)

}