47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
package validation
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import (
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"encoding/base64"
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"fmt"
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"os"
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"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/options"
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)
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const multipleValuesForSecretSource = "multiple values specified for secret source: specify either value, fromEnv of fromFile"
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func validateSecretSource(source options.SecretSource) string {
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switch {
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case len(source.Value) > 0 && source.FromEnv == "" && source.FromFile == "":
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return validateSecretSourceValue(source.Value)
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case len(source.Value) == 0 && source.FromEnv != "" && source.FromFile == "":
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return validateSecretSourceEnv(source.FromEnv)
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case len(source.Value) == 0 && source.FromEnv == "" && source.FromFile != "":
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return validateSecretSourceFile(source.FromFile)
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default:
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return multipleValuesForSecretSource
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}
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}
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func validateSecretSourceValue(value []byte) string {
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dst := make([]byte, len(value))
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if _, err := base64.StdEncoding.Decode(dst, value); err != nil {
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return fmt.Sprintf("error decoding secret value: %v", err)
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}
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return ""
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}
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func validateSecretSourceEnv(key string) string {
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if value := os.Getenv(key); value == "" {
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return fmt.Sprintf("error loading secret from environent: no value for for key %q", key)
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}
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return ""
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}
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func validateSecretSourceFile(path string) string {
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if _, err := os.Stat(path); err != nil {
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return fmt.Sprintf("error loadig secret from file: %v", err)
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}
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return ""
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}
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