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describeuser.go
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/
describeuser.go
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/*
* Copyright 2018-2020 The NATS Authors
* 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 (
"fmt"
"github.com/nats-io/nsc/v2/cmd/store"
"github.com/nats-io/jwt/v2"
"github.com/spf13/cobra"
)
func createDescribeUserCmd() *cobra.Command {
var params DescribeUserParams
cmd := &cobra.Command{
Use: "user",
Short: "Describes an user",
Args: cobra.MaximumNArgs(1),
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
return RunAction(cmd, args, ¶ms)
},
}
cmd.Flags().StringVarP(¶ms.outputFile, "output-file", "o", "--", "output file, '--' is stdout")
cmd.Flags().StringVarP(¶ms.user, "name", "n", "", "user name")
params.AccountContextParams.BindFlags(cmd)
return cmd
}
func init() {
describeCmd.AddCommand(createDescribeUserCmd())
}
type DescribeUserParams struct {
AccountContextParams
jwt.UserClaims
user string
outputFile string
raw []byte
}
func (p *DescribeUserParams) SetDefaults(ctx ActionCtx) error {
p.user = NameFlagOrArgument(p.user, ctx)
return p.AccountContextParams.SetDefaults(ctx)
}
func (p *DescribeUserParams) PreInteractive(ctx ActionCtx) error {
var err error
if err = p.AccountContextParams.Edit(ctx); err != nil {
return err
}
if p.user == "" {
p.user, err = PickUser(ctx.StoreCtx(), p.AccountContextParams.Name)
if err != nil {
return err
}
}
return nil
}
func (p *DescribeUserParams) Load(ctx ActionCtx) error {
var err error
if err = p.AccountContextParams.Validate(ctx); err != nil {
return err
}
if p.user == "" {
n := ctx.StoreCtx().DefaultUser(p.AccountContextParams.Name)
if n != nil {
p.user = *n
}
}
if p.user == "" {
return fmt.Errorf("user is required")
}
if Json || Raw || JsonPath != "" {
p.raw, err = ctx.StoreCtx().Store.ReadRawUserClaim(p.AccountContextParams.Name, p.user)
if err != nil {
return err
}
if Json || JsonPath != "" {
p.raw, err = bodyAsJson(p.raw)
if err != nil {
return err
}
if JsonPath != "" {
p.raw, err = GetField(p.raw, JsonPath)
if err != nil {
return err
}
}
}
} else {
uc, err := ctx.StoreCtx().Store.ReadUserClaim(p.AccountContextParams.Name, p.user)
if err != nil {
return err
}
p.UserClaims = *uc
}
return nil
}
func (p *DescribeUserParams) Validate(_ ActionCtx) error {
return nil
}
func (p *DescribeUserParams) PostInteractive(_ ActionCtx) error {
return nil
}
func (p *DescribeUserParams) Run(ctx ActionCtx) (store.Status, error) {
if Raw || Json || JsonPath != "" {
if !IsStdOut(p.outputFile) && Raw {
var err error
p.raw, err = jwt.DecorateJWT(string(p.raw))
if err != nil {
return nil, err
}
}
p.raw = append(p.raw, '\n')
if err := Write(p.outputFile, p.raw); err != nil {
return nil, err
}
} else {
v := NewUserDescriber(p.UserClaims).Describe()
if aClaim, err := ctx.StoreCtx().Store.ReadAccountClaim(p.AccountContextParams.Name); err == nil {
if s, ok := aClaim.SigningKeys.GetScope(p.UserClaims.Issuer); ok && s != nil {
v = fmt.Sprintf("%s\n%s", v, NewScopedSkDescriber(s.(*jwt.UserScope)).Describe())
}
}
if err := Write(p.outputFile, []byte(v)); err != nil {
return nil, err
}
}
var s store.Status
if !IsStdOut(p.outputFile) {
k := "description"
if Raw {
k = "jwt"
}
s = store.OKStatus("wrote user %s to %#q", k, AbbrevHomePaths(p.outputFile))
}
return s, nil
}