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mc/cmd-access.go

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/*
* Minio Client, (C) 2015 Minio, Inc.
*
* 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.
*/
package main
import (
"errors"
"fmt"
"time"
"github.com/minio/cli"
"github.com/minio/mc/pkg/client"
"github.com/minio/mc/pkg/console"
"github.com/minio/minio/pkg/iodine"
)
func runAccessCmd(ctx *cli.Context) {
if !ctx.Args().Present() || ctx.Args().First() == "help" {
cli.ShowCommandHelpAndExit(ctx, "access", 1) // last argument is exit code
}
if !isMcConfigExist() {
console.Fatalln(console.ErrorMessage{
Message: "Please run \"mc config generate\"",
Error: iodine.New(errors.New("\"mc\" is not configured"), nil),
})
}
config, err := getMcConfig()
if err != nil {
console.Fatalln(console.ErrorMessage{
Message: "loading config file failed",
Error: iodine.New(err, nil),
})
}
targetURLConfigMap := make(map[string]*hostConfig)
targetURLs, err := getExpandedURLs(ctx.Args(), config.Aliases)
if err != nil {
console.Fatalln(console.ErrorMessage{
Message: "Unknown type of URL ",
Error: iodine.New(err, nil),
})
}
acl := bucketACL(ctx.Args().First())
if !acl.isValidBucketACL() {
console.Fatalln(console.ErrorMessage{
Message: "Valid types are [private, public, readonly].",
Error: iodine.New(errors.New("Invalid ACL Type "+acl.String()+""), nil),
})
}
targetURLs = targetURLs[1:] // 1 or more target URLs
for _, targetURL := range targetURLs {
targetConfig, err := getHostConfig(targetURL)
if err != nil {
console.Fatalln(console.ErrorMessage{
Message: "Unable to read configuration for host " + "" + targetURL + "",
Error: iodine.New(err, nil),
})
}
targetURLConfigMap[targetURL] = targetConfig
}
for targetURL, targetConfig := range targetURLConfigMap {
errorMsg, err := doUpdateAccessCmd(targetURL, acl.String(), targetConfig)
if err != nil {
console.Errorln(console.ErrorMessage{
Message: errorMsg,
Error: iodine.New(err, nil),
})
}
}
}
func doUpdateAccessCmd(targetURL, targetACL string, targetConfig *hostConfig) (string, error) {
var err error
var clnt client.Client
clnt, err = getNewClient(targetURL, targetConfig)
if err != nil {
msg := fmt.Sprintf("Unable to initialize client for %s", targetURL)
return msg, iodine.New(err, nil)
}
return doUpdateAccess(clnt, targetURL, targetACL)
}
func doUpdateAccess(clnt client.Client, targetURL, targetACL string) (string, error) {
err := clnt.SetBucketACL(targetACL)
for i := 0; i < globalMaxRetryFlag && err != nil && isValidRetry(err); i++ {
console.Retry("Retrying ...", i)
// Progressively longer delays
time.Sleep(time.Duration(i*i) * time.Second)
err = clnt.SetBucketACL(targetACL)
}
if err != nil {
msg := fmt.Sprintf("Failed to add bucket access policy for URL %s", targetURL)
return msg, iodine.New(err, nil)
}
return "", nil
}