Files
s3-cli/cmd/admin-user-policy.go
T

100 lines
3.0 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bytes"
"fmt"
"strings"
"github.com/fatih/color"
jsoniter "github.com/json-iterator/go"
"github.com/minio/cli"
"github.com/minio/mc/pkg/probe"
"github.com/minio/minio/pkg/console"
iampolicy "github.com/minio/minio/pkg/iam/policy"
)
var adminUserPolicyCmd = cli.Command{
Name: "policy",
Usage: "export user policies in JSON format",
Action: mainAdminUserPolicy,
OnUsageError: onUsageError,
Before: setGlobalsFromContext,
Flags: globalFlags,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} TARGET USERNAME
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Display the policy document of a user "foobar" in JSON format.
{{.Prompt}} {{.HelpName}} myminio foobar
`,
}
// checkAdminUserPolicySyntax - validate all the passed arguments
func checkAdminUserPolicySyntax(ctx *cli.Context) {
if len(ctx.Args()) != 2 {
cli.ShowCommandHelpAndExit(ctx, "policy", 1) // last argument is exit code
}
}
// mainAdminUserPolicy is the handler for "mc admin user policy" command.
func mainAdminUserPolicy(ctx *cli.Context) error {
checkAdminUserPolicySyntax(ctx)
console.SetColor("UserMessage", color.New(color.FgGreen))
// Get the alias parameter from cli
args := ctx.Args()
aliasedURL := args.Get(0)
// Create a new MinIO Admin Client
client, err := newAdminClient(aliasedURL)
fatalIf(err, "Unable to initialize admin connection.")
user, e := client.GetUserInfo(globalContext, args.Get(1))
fatalIf(probe.NewError(e).Trace(args...), "Unable to get user info")
var combinedPolicy iampolicy.Policy
policies := strings.Split(user.PolicyName, ",")
for _, p := range policies {
buf, e := client.InfoCannedPolicy(globalContext, p)
fatalIf(probe.NewError(e).Trace(args...), "Unable to fetch user policy document")
policy, e := iampolicy.ParseConfig(bytes.NewReader(buf))
fatalIf(probe.NewError(e).Trace(args...), "Unable to parse user policy document")
combinedPolicy = combinedPolicy.Merge(*policy)
}
var jsoniter = jsoniter.ConfigCompatibleWithStandardLibrary
policyJSON, e := jsoniter.MarshalIndent(combinedPolicy, "", " ")
fatalIf(probe.NewError(e).Trace(args...), "Unable to parse user policy document")
fmt.Println(string(policyJSON))
return nil
}