/
admin-policy-add.go
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/
admin-policy-add.go
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/*
* MinIO Client (C) 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.
* 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 cmd
import (
"bytes"
"fmt"
"io/ioutil"
"github.com/fatih/color"
"github.com/minio/cli"
json "github.com/minio/mc/pkg/colorjson"
"github.com/minio/mc/pkg/probe"
"github.com/minio/minio/pkg/console"
iampolicy "github.com/minio/minio/pkg/iam/policy"
)
var adminPolicyAddCmd = cli.Command{
Name: "add",
Usage: "add new policy",
Action: mainAdminPolicyAdd,
Before: setGlobalsFromContext,
Flags: globalFlags,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} TARGET POLICYNAME POLICYFILE
POLICYNAME:
Name of the canned policy on MinIO server.
POLICYFILE:
Name of the policy file associated with the policy name.
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Add a new canned policy 'writeonly'.
{{.Prompt}} {{.HelpName}} myminio writeonly /tmp/writeonly.json
`,
}
// checkAdminPolicyAddSyntax - validate all the passed arguments
func checkAdminPolicyAddSyntax(ctx *cli.Context) {
if len(ctx.Args()) != 3 {
cli.ShowCommandHelpAndExit(ctx, "add", 1) // last argument is exit code
}
}
// userPolicyMessage container for content message structure
type userPolicyMessage struct {
op string
Status string `json:"status"`
Policy string `json:"policy,omitempty"`
PolicyJSON *iampolicy.Policy `json:"policyJSON,omitempty"`
UserOrGroup string `json:"userOrGroup,omitempty"`
IsGroup bool `json:"isGroup"`
}
func (u userPolicyMessage) String() string {
switch u.op {
case "info":
buf, e := json.MarshalIndent(u.PolicyJSON, "", " ")
fatalIf(probe.NewError(e), "Unable to parse policy")
return string(buf)
case "list":
policyFieldMaxLen := 20
// Create a new pretty table with cols configuration
return newPrettyTable(" ",
Field{"Policy", policyFieldMaxLen},
).buildRow(u.Policy)
case "remove":
return console.Colorize("PolicyMessage", "Removed policy `"+u.Policy+"` successfully.")
case "add":
return console.Colorize("PolicyMessage", "Added policy `"+u.Policy+"` successfully.")
case "set":
fragment := "user"
if u.IsGroup {
fragment = "group"
}
return console.Colorize("PolicyMessage",
fmt.Sprintf("Policy %s is set on %s `%s`", u.Policy, fragment, u.UserOrGroup))
}
return ""
}
func (u userPolicyMessage) JSON() string {
u.Status = "success"
jsonMessageBytes, e := json.MarshalIndent(u, "", " ")
fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
return string(jsonMessageBytes)
}
// mainAdminPolicyAdd is the handle for "mc admin policy add" command.
func mainAdminPolicyAdd(ctx *cli.Context) error {
checkAdminPolicyAddSyntax(ctx)
console.SetColor("PolicyMessage", color.New(color.FgGreen))
// Get the alias parameter from cli
args := ctx.Args()
aliasedURL := args.Get(0)
policy, e := ioutil.ReadFile(args.Get(2))
fatalIf(probe.NewError(e).Trace(args...), "Unable to get policy")
// Create a new MinIO Admin Client
client, err := newAdminClient(aliasedURL)
fatalIf(err, "Unable to initialize admin connection.")
iamp, e := iampolicy.ParseConfig(bytes.NewReader(policy))
fatalIf(probe.NewError(e).Trace(args...), "Unable to parse the input policy")
fatalIf(probe.NewError(client.AddCannedPolicy(globalContext, args.Get(1), iamp)).Trace(args...), "Unable to add new policy")
printMsg(userPolicyMessage{
op: "add",
Policy: args.Get(1),
})
return nil
}