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Allow reading passphrase from file

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Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2018-06-01 17:37:47 +02:00
parent 0d0e1d0c0b
commit 00e8fde1ee
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
1 changed files with 12 additions and 3 deletions
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15
main.go
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@ -19,6 +19,7 @@ var (
CleanEnv bool `flag:"clean" default:"false" description:"Do not pass current environment to child process"` CleanEnv bool `flag:"clean" default:"false" description:"Do not pass current environment to child process"`
LogLevel string `flag:"log-level" default:"info" description:"Log level (debug, info, warn, error, fatal)"` LogLevel string `flag:"log-level" default:"info" description:"Log level (debug, info, warn, error, fatal)"`
Password string `flag:"password,p" default:"" env:"PASSWORD" description:"Password to decrypt environment file"` Password string `flag:"password,p" default:"" env:"PASSWORD" description:"Password to decrypt environment file"`
PasswordFile string `flag:"password-file" default:"" description:"Read encryption key from file"`
VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"` VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"`
}{} }{}
@ -74,17 +75,25 @@ func main() {
log.WithError(err).Fatal("Could not read env-file") log.WithError(err).Fatal("Could not read env-file")
} }
if cfg.Password == "" && cfg.PasswordFile != "" {
if _, err := os.Stat(cfg.PasswordFile); err == nil {
data, err := ioutil.ReadFile(cfg.PasswordFile)
if err != nil {
log.WithError(err).Fatal("Unable to read password from file")
}
cfg.Password = string(data)
}
}
if cfg.Password != "" { if cfg.Password != "" {
if body, err = openssl.New().DecryptString(cfg.Password, string(body)); err != nil { if body, err = openssl.New().DecryptString(cfg.Password, string(body)); err != nil {
log.WithError(err).Fatal("Could not decrypt env-file") log.WithError(err).Fatal("Could not decrypt env-file")
} }
} }
var childenv map[string]string var childenv = envListToMap(os.Environ())
if cfg.CleanEnv { if cfg.CleanEnv {
childenv = map[string]string{} childenv = map[string]string{}
} else {
childenv = envListToMap(os.Environ())
} }
pairs := envListToMap(strings.Split(string(body), "\n")) pairs := envListToMap(strings.Split(string(body), "\n"))