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Copy pathclient-grants.go
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130 lines (112 loc) · 3.29 KB
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//go:build ignore
// +build ignore
// 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 main
import (
"bytes"
"context"
"crypto/tls"
"encoding/json"
"flag"
"fmt"
"log"
"net/http"
"net/url"
"strings"
minio "github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
)
// JWTToken - parses the output from IDP id_token.
type JWTToken struct {
AccessToken string `json:"access_token"`
Expiry int `json:"expires_in"`
}
var (
stsEndpoint string
idpEndpoint string
clientID string
clientSecret string
)
func init() {
flag.StringVar(&stsEndpoint, "sts-ep", "http://localhost:9000", "STS endpoint")
flag.StringVar(&idpEndpoint, "idp-ep", "http://localhost:8080/auth/realms/minio/protocol/openid-connect/token", "IDP token endpoint")
flag.StringVar(&clientID, "cid", "", "Client ID")
flag.StringVar(&clientSecret, "csec", "", "Client secret")
}
func getTokenExpiry() (*credentials.ClientGrantsToken, error) {
data := url.Values{}
data.Set("grant_type", "client_credentials")
req, err := http.NewRequest(http.MethodPost, idpEndpoint, strings.NewReader(data.Encode()))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.SetBasicAuth(clientID, clientSecret)
t := &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}
hclient := http.Client{
Transport: t,
}
resp, err := hclient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("%s", resp.Status)
}
var idpToken JWTToken
if err = json.NewDecoder(resp.Body).Decode(&idpToken); err != nil {
return nil, err
}
return &credentials.ClientGrantsToken{Token: idpToken.AccessToken, Expiry: idpToken.Expiry}, nil
}
func main() {
flag.Parse()
if clientID == "" || clientSecret == "" {
flag.PrintDefaults()
return
}
sts, err := credentials.NewSTSClientGrants(stsEndpoint, getTokenExpiry)
if err != nil {
log.Fatal(err)
}
// Uncomment this to use MinIO API operations by initializing minio
// client with obtained credentials.
opts := &minio.Options{
Creds: sts,
BucketLookup: minio.BucketLookupAuto,
}
u, err := url.Parse(stsEndpoint)
if err != nil {
log.Fatal(err)
}
clnt, err := minio.New(u.Host, opts)
if err != nil {
log.Fatal(err)
}
d := bytes.NewReader([]byte("Hello, World"))
n, err := clnt.PutObject(context.Background(), "my-bucketname", "my-objectname", d, d.Size(), minio.PutObjectOptions{})
if err != nil {
log.Fatalln(err)
}
log.Println("Uploaded", "my-objectname", " of size: ", n, "Successfully.")
}