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decrypt.go
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decrypt.go
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package secret
import (
"bytes"
"context"
"fmt"
"os"
"github.com/spf13/cobra"
"golang.org/x/crypto/ssh/terminal"
"github.com/werf/werf/cmd/werf/common"
"github.com/werf/werf/cmd/werf/docs/replacers/helm"
secret_common "github.com/werf/werf/cmd/werf/helm/secret/common"
"github.com/werf/werf/pkg/deploy/secrets_manager"
"github.com/werf/werf/pkg/git_repo"
"github.com/werf/werf/pkg/git_repo/gitdata"
"github.com/werf/werf/pkg/secret"
"github.com/werf/werf/pkg/werf"
)
var cmdData struct {
OutputFilePath string
}
var commonCmdData common.CmdData
func NewCmd(ctx context.Context) *cobra.Command {
ctx = common.NewContextWithCmdData(ctx, &commonCmdData)
cmd := common.SetCommandContext(ctx, &cobra.Command{
Use: "decrypt",
DisableFlagsInUseLine: true,
Short: "Decrypt data",
Long: common.GetLongCommandDescription(helm.GetHelmSecretDecryptDocs().Long),
Example: ` # Decrypt data in interactive mode
$ werf helm secret decrypt
Enter secret:
test
# Decrypt from a pipe
$ cat .helm/secret/date | werf helm secret decrypt
Tue Jun 26 09:58:10 PDT 1990`,
Annotations: map[string]string{
common.CmdEnvAnno: common.EnvsDescription(common.WerfSecretKey),
common.DocsLongMD: helm.GetHelmSecretDecryptDocs().LongMD,
},
RunE: func(cmd *cobra.Command, args []string) error {
ctx := cmd.Context()
if err := common.ProcessLogOptions(&commonCmdData); err != nil {
common.PrintHelp(cmd)
return err
}
return runSecretDecrypt(ctx)
},
})
common.SetupDir(&commonCmdData, cmd)
common.SetupTmpDir(&commonCmdData, cmd, common.SetupTmpDirOptions{})
common.SetupHomeDir(&commonCmdData, cmd, common.SetupHomeDirOptions{})
common.SetupGiterminismOptions(&commonCmdData, cmd)
common.SetupLogOptions(&commonCmdData, cmd)
cmd.Flags().StringVarP(&cmdData.OutputFilePath, "output-file-path", "o", "", "Write to file instead of stdout")
return cmd
}
func runSecretDecrypt(ctx context.Context) error {
if err := werf.Init(*commonCmdData.TmpDir, *commonCmdData.HomeDir); err != nil {
return fmt.Errorf("initialization error: %w", err)
}
gitDataManager, err := gitdata.GetHostGitDataManager(ctx)
if err != nil {
return fmt.Errorf("error getting host git data manager: %w", err)
}
if err := git_repo.Init(gitDataManager); err != nil {
return err
}
workingDir := common.GetWorkingDir(&commonCmdData)
return secretDecrypt(ctx, secrets_manager.NewSecretsManager(secrets_manager.SecretsManagerOptions{}), workingDir)
}
func secretDecrypt(ctx context.Context, m *secrets_manager.SecretsManager, workingDir string) error {
var encodedData []byte
var data []byte
var err error
var encoder *secret.YamlEncoder
if enc, err := m.GetYamlEncoder(ctx, workingDir); err != nil {
return err
} else {
encoder = enc
}
if terminal.IsTerminal(int(os.Stdin.Fd())) {
encodedData, err = secret_common.InputFromInteractiveStdin("Enter secret: ")
if err != nil {
return err
}
} else {
encodedData, err = secret_common.InputFromStdin()
if err != nil {
return err
}
}
if len(encodedData) == 0 {
return nil
}
encodedData = bytes.TrimSpace(encodedData)
data, err = encoder.Decrypt(encodedData)
if err != nil {
return err
}
if cmdData.OutputFilePath != "" {
if err := secret_common.SaveGeneratedData(cmdData.OutputFilePath, data); err != nil {
return err
}
} else {
if terminal.IsTerminal(int(os.Stdout.Fd())) {
if !bytes.HasSuffix(data, []byte("\n")) {
data = append(data, []byte("\n")...)
}
}
fmt.Printf("%s", string(data))
}
return nil
}