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insert.go
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insert.go
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package action
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"github.com/gopasspw/gopass/internal/action/exit"
"github.com/gopasspw/gopass/internal/audit"
"github.com/gopasspw/gopass/internal/editor"
"github.com/gopasspw/gopass/internal/out"
"github.com/gopasspw/gopass/internal/store"
"github.com/gopasspw/gopass/pkg/ctxutil"
"github.com/gopasspw/gopass/pkg/debug"
"github.com/gopasspw/gopass/pkg/gopass"
"github.com/gopasspw/gopass/pkg/gopass/secrets"
"github.com/gopasspw/gopass/pkg/termio"
"github.com/urfave/cli/v2"
)
// Insert a string as content to a secret file.
func (s *Action) Insert(c *cli.Context) error {
ctx := ctxutil.WithGlobalFlags(c)
echo := c.Bool("echo")
multiline := c.Bool("multiline")
force := c.Bool("force")
appending := c.Bool("append")
args, kvps := parseArgs(c)
name := args.Get(0)
key := args.Get(1)
if name == "" {
return exit.Error(exit.NoName, nil, "Usage: %s insert name", s.Name)
}
return s.insert(ctx, c, name, key, echo, multiline, force, appending, kvps)
}
func (s *Action) insert(ctx context.Context, c *cli.Context, name, key string, echo, multiline, force, appending bool, kvps map[string]string) error {
var content []byte
// if content is piped to stdin, read and save it.
if ctxutil.IsStdin(ctx) {
buf := &bytes.Buffer{}
if written, err := io.Copy(buf, stdin); err != nil {
return exit.Error(exit.IO, err, "failed to copy after %d bytes: %s", written, err)
}
content = buf.Bytes()
}
// update to a single YAML entry.
if key != "" {
return s.insertYAML(ctx, name, key, content, kvps)
}
if ctxutil.IsStdin(ctx) {
if !force && !appending && s.Store.Exists(ctx, name) {
return exit.Error(exit.Aborted, nil, "not overwriting your current secret")
}
return s.insertStdin(ctx, name, content, appending)
}
// don't check if it's force anyway.
if !force && s.Store.Exists(ctx, name) && !termio.AskForConfirmation(ctx, fmt.Sprintf("An entry already exists for %s. Overwrite it?", name)) {
return exit.Error(exit.Aborted, nil, "not overwriting your current secret")
}
// if multi-line input is requested start an editor.
if multiline && ctxutil.IsInteractive(ctx) {
return s.insertMultiline(ctx, c, name)
}
// if echo mode is requested use a simple string input function.
if echo {
ctx = termio.WithPassPromptFunc(ctx, func(ctx context.Context, prompt string) (string, error) {
return termio.AskForString(ctx, prompt, "")
})
}
pw, err := termio.AskForPassword(ctx, fmt.Sprintf("password for %s", name), true)
if err != nil {
return exit.Error(exit.IO, err, "failed to ask for password: %s", err)
}
return s.insertSingle(ctx, name, pw, kvps)
}
func (s *Action) insertStdin(ctx context.Context, name string, content []byte, appendTo bool) error {
var sec gopass.Secret = secrets.ParseAKV(content)
if appendTo && s.Store.Exists(ctx, name) {
var err error
sec, err = s.insertStdinAppend(ctx, name, content)
if err != nil {
return err
}
}
if err := s.Store.Set(ctxutil.WithCommitMessage(ctx, "Read secret from STDIN"), name, sec); err != nil {
if !errors.Is(err, store.ErrMeaninglessWrite) {
return exit.Error(exit.Encrypt, err, "failed to set %q: %s", name, err)
}
out.Warningf(ctx, "No need to write: the secret is already there and with the right value")
}
return nil
}
func (s *Action) insertStdinAppend(ctx context.Context, name string, content []byte) (gopass.Secret, error) {
eSec, err := s.Store.Get(ctx, name)
if err != nil {
return nil, exit.Error(exit.Decrypt, err, "failed to decrypt existing secret: %s", err)
}
secW, ok := eSec.(io.Writer)
if !ok {
return nil, fmt.Errorf("%T is not an io.Writer", eSec)
}
if _, err := secW.Write(content); err != nil {
return nil, exit.Error(exit.Encrypt, err, "failed to write %q: %q", content, err)
}
debug.Log("wrote to secretWriter")
return eSec, nil
}
func (s *Action) insertSingle(ctx context.Context, name, pw string, kvps map[string]string) error {
sec, err := s.insertGetSecret(ctx, name, pw)
if err != nil {
return err
}
setMetadata(sec, kvps)
// we only update the pw if the kvps were not set or if it's non-empty, because otherwise we were updating the kvps.
if pw != "" || len(kvps) == 0 {
sec.SetPassword(pw)
audit.Single(ctx, pw)
}
if err := s.Store.Set(ctxutil.WithCommitMessage(ctx, "Inserted user supplied password"), name, sec); err != nil {
if !errors.Is(err, store.ErrMeaninglessWrite) {
return exit.Error(exit.Encrypt, err, "failed to write secret %q: %s", name, err)
}
out.Warningf(ctx, "No need to write: the secret is already there and with the right value")
}
return nil
}
func (s *Action) insertGetSecret(ctx context.Context, name, pw string) (gopass.Secret, error) {
if s.Store.Exists(ctx, name) {
sec, err := s.Store.Get(ctx, name)
if err != nil {
return nil, exit.Error(exit.Decrypt, err, "failed to decrypt existing secret: %s", err)
}
return sec, nil
}
content, found := s.renderTemplate(ctx, name, []byte(pw))
// no template found
if !found {
return secrets.New(), nil
}
// render template into a new secret
sec := secrets.NewAKV()
if _, err := sec.Write(content); err != nil {
debug.Log("failed to handle template: %s", err)
return secrets.New(), nil
}
return sec, nil
}
// insertYAML will overwrite existing keys.
func (s *Action) insertYAML(ctx context.Context, name, key string, content []byte, kvps map[string]string) error {
debug.Log("insertYAML: %s - %s -> %s", name, key, content)
if ctxutil.IsInteractive(ctx) {
pw, err := termio.AskForString(ctx, name+":"+key, "")
if err != nil {
return exit.Error(exit.IO, err, "failed to ask for user input: %s", err)
}
content = []byte(pw)
}
var sec gopass.Secret
if s.Store.Exists(ctx, name) {
var err error
sec, err = s.Store.Get(ctx, name)
if err != nil {
return exit.Error(exit.Encrypt, err, "failed to set key %q of %q: %s", key, name, err)
}
debug.Log("using existing secret %s", name)
} else {
sec = secrets.New()
debug.Log("creating new secret %s", name)
}
setMetadata(sec, kvps)
debug.Log("setting %s to %s", key, string(content))
if err := sec.Set(key, string(content)); err != nil {
return exit.Error(exit.Usage, err, "failed set key %q of %q: %q", key, name, err)
}
if err := s.Store.Set(ctxutil.WithCommitMessage(ctx, "Inserted YAML value from STDIN"), name, sec); err != nil {
if !errors.Is(err, store.ErrMeaninglessWrite) {
return exit.Error(exit.Encrypt, err, "failed to set key %q of %q: %s", key, name, err)
}
out.Warningf(ctx, "No need to write: the secret is already there and with the right value")
}
return nil
}
func (s *Action) insertMultiline(ctx context.Context, c *cli.Context, name string) error {
buf := []byte{}
if s.Store.Exists(ctx, name) {
var err error
sec, err := s.Store.Get(ctx, name)
if err != nil {
return exit.Error(exit.Decrypt, err, "failed to decrypt existing secret: %s", err)
}
buf = sec.Bytes()
}
ed := editor.Path(c)
content, err := editor.Invoke(ctx, ed, buf)
if err != nil {
return exit.Error(exit.Unknown, err, "failed to start editor: %s", err)
}
sec := secrets.NewAKV()
n, err := sec.Write(content)
if err != nil || n < 0 {
out.Errorf(ctx, "WARNING: Invalid secret: %s of len %d", err, n)
}
if err := s.Store.Set(ctxutil.WithCommitMessage(ctx, fmt.Sprintf("Inserted user supplied password with %s", ed)), name, sec); err != nil {
if !errors.Is(err, store.ErrMeaninglessWrite) {
return exit.Error(exit.Encrypt, err, "failed to store secret %q: %s", name, err)
}
out.Warningf(ctx, "No need to write: the secret is already there and with the right value")
}
return nil
}