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Auto-probe backend signature support (#6044)

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This commit is contained in:
Harshavardhana 2018-06-18 15:27:14 -07:00 committed by kannappanr
parent 05a64dee95
commit 2575f4198a
1 changed files with 38 additions and 22 deletions
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60
cmd/gateway/s3/gateway-s3.go
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@ -1,5 +1,5 @@
/*
* Minio Cloud Storage, (C) 2017 Minio, Inc.
* Minio Cloud Storage, (C) 2017, 2018 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -97,12 +97,16 @@ EXAMPLES:
// Handler for 'minio gateway s3' command line.
func s3GatewayMain(ctx *cli.Context) {
// Validate gateway arguments.
host := ctx.Args().First()
// Validate gateway arguments.
logger.FatalIf(minio.ValidateGatewayArguments(ctx.GlobalString("address"), host), "Invalid argument")
args := ctx.Args()
if !ctx.Args().Present() {
args = cli.Args{"https://s3.amazonaws.com"}
}
minio.StartGateway(ctx, &S3{host})
// Validate gateway arguments.
logger.FatalIf(minio.ValidateGatewayArguments(ctx.GlobalString("address"), args.First()), "Invalid argument")
// Start the gateway..
minio.StartGateway(ctx, &S3{args.First()})
}
// S3 implements Gateway.
@ -115,34 +119,46 @@ func (g *S3) Name() string {
return s3Backend
}
// NewGatewayLayer returns s3 ObjectLayer.
func (g *S3) NewGatewayLayer(creds auth.Credentials) (minio.ObjectLayer, error) {
var err error
var endpoint string
var secure = true
// newS3 - Initializes a new client by auto probing S3 server signature.
func newS3(url, accessKey, secretKey string) (*miniogo.Core, error) {
if url == "" {
url = "https://s3.amazonaws.com"
}
// Validate host parameters.
if g.host != "" {
// Override default params if the host is provided
endpoint, secure, err = minio.ParseGatewayEndpoint(g.host)
// Override default params if the host is provided
endpoint, secure, err := minio.ParseGatewayEndpoint(url)
if err != nil {
return nil, err
}
clnt, err := miniogo.NewV4(endpoint, accessKey, secretKey, secure)
if err != nil {
return nil, err
}
if _, err = clnt.BucketExists("probe-bucket-sign"); err != nil {
clnt, err = miniogo.NewV2(endpoint, accessKey, secretKey, secure)
if err != nil {
return nil, err
}
if _, err = clnt.BucketExists("probe-bucket-sign"); err != nil {
return nil, err
}
}
// Default endpoint parameters
if endpoint == "" {
endpoint = "s3.amazonaws.com"
}
return &miniogo.Core{Client: clnt}, nil
}
// Initialize minio client object.
client, err := miniogo.NewCore(endpoint, creds.AccessKey, creds.SecretKey, secure)
// NewGatewayLayer returns s3 ObjectLayer.
func (g *S3) NewGatewayLayer(creds auth.Credentials) (minio.ObjectLayer, error) {
// Probe S3 signature with input credentials.
clnt, err := newS3(g.host, creds.AccessKey, creds.SecretKey)
if err != nil {
return nil, err
}
return &s3Objects{
Client: client,
Client: clnt,
}, nil
}