70 lines
2.4 KiB
Go
70 lines
2.4 KiB
Go
package repo
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"git.kebcloud.no/keb/lazysecrets/internal/jasypt"
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"git.kebcloud.no/keb/lazysecrets/internal/provider"
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)
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// jasyptEnv is where Spring looks for the password first, before the
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// config's jasypt.encryptor.password, and so does lazysecrets.
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const jasyptEnv = "JASYPT_ENCRYPTOR_PASSWORD"
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// jasyptValue decrypts v when it's a Jasypt value, ENC(...), from a plain
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// file; other values are as they are.
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func jasyptValue(file, name string, v provider.SecretValue) (provider.SecretValue, error) {
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s := v.Reveal()
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if !jasypt.Is(s) {
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return v, nil
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}
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password, from, err := jasyptPassword(file, name)
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if err != nil {
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return provider.SecretValue{}, err
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}
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plain, err := jasypt.Decrypt(s, password)
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if errors.Is(err, jasypt.ErrDecrypt) {
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return provider.SecretValue{}, fmt.Errorf("jasypt: with the password from %s: %w", from, err)
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}
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if err != nil {
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return provider.SecretValue{}, fmt.Errorf("jasypt: %w", err)
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}
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return provider.NewSecretValue([]byte(plain)), nil
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}
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// jasyptPassword is the password for the Jasypt value of the key named
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// name, and where it's from: $JASYPT_ENCRYPTOR_PASSWORD, else the file's
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// own setting (jasypt.encryptor.password in a Spring file; the service's
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// JASYPT_ENCRYPTOR_PASSWORD in a compose file, the file's in an env file),
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// with a ${VAR} in it read from the environment.
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func jasyptPassword(file, name string) (password, from string, err error) {
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if v := os.Getenv(jasyptEnv); v != "" {
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return v, "$" + jasyptEnv, nil
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}
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setting, read, placeholder := jasyptEnv, plainValue, composePlaceholder // env files interpolate like compose
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if t, ok := configTypeOf(file); ok {
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if t.jasyptSetting == nil {
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return "", "", fmt.Errorf("jasypt: no password: set $%s", jasyptEnv)
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}
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setting, read, placeholder = t.jasyptSetting(name), t.value, t.placeholder
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}
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v, err := read(file, setting)
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if err != nil {
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return "", "", fmt.Errorf("jasypt: no password: set $%s, or %s in %s", jasyptEnv, setting, filepath.Base(file))
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}
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from = setting + " in " + filepath.Base(file)
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env, def, hasDef, ok := placeholder(v.Reveal())
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switch {
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case !ok:
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return v.Reveal(), from, nil
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case os.Getenv(env) != "":
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return os.Getenv(env), "$" + env + " (" + from + ")", nil
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case hasDef:
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return def, "the default in " + from, nil
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}
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return "", "", fmt.Errorf("jasypt: no password: %s is %s, and $%s isn't set", from, v.Reveal(), env)
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}
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