1 files changed, 67 insertions, 0 deletions
diff --git a/internal/configuration/decode_hooks.go b/internal/configuration/decode_hooks.go
index 513f7fd37..cc9aac697 100644
--- a/internal/configuration/decode_hooks.go
+++ b/internal/configuration/decode_hooks.go
@@ -4,8 +4,11 @@ import (
 	"fmt"
 	"net/mail"
 	"reflect"
+	"time"
 
 	"github.com/mitchellh/mapstructure"
+
+	"github.com/authelia/authelia/v4/internal/utils"
 )
 
 // StringToMailAddressFunc decodes a string into a mail.Address.
@@ -33,3 +36,67 @@ func StringToMailAddressFunc() mapstructure.DecodeHookFunc {
 		return *mailAddress, nil
 	}
 }
+
+// ToTimeDurationFunc converts string and integer types to a time.Duration.
+func ToTimeDurationFunc() mapstructure.DecodeHookFuncType {
+	return func(f reflect.Type, t reflect.Type, data interface{}) (value interface{}, err error) {
+		var (
+			ptr bool
+		)
+
+		switch f.Kind() {
+		case reflect.String, reflect.Int, reflect.Int32, reflect.Int64:
+			// We only allow string and integer from kinds to match.
+			break
+		default:
+			return data, nil
+		}
+
+		typeTimeDuration := reflect.TypeOf(time.Hour)
+
+		if t.Kind() == reflect.Ptr {
+			if t.Elem() != typeTimeDuration {
+				return data, nil
+			}
+
+			ptr = true
+		} else if t != typeTimeDuration {
+			return data, nil
+		}
+
+		var duration time.Duration
+
+		switch {
+		case f.Kind() == reflect.String:
+			break
+		case f.Kind() == reflect.Int:
+			seconds := data.(int)
+
+			duration = time.Second * time.Duration(seconds)
+		case f.Kind() == reflect.Int32:
+			seconds := data.(int32)
+
+			duration = time.Second * time.Duration(seconds)
+		case f == typeTimeDuration:
+			duration = data.(time.Duration)
+		case f.Kind() == reflect.Int64:
+			seconds := data.(int64)
+
+			duration = time.Second * time.Duration(seconds)
+		}
+
+		if duration == 0 {
+			dataStr := data.(string)
+
+			if duration, err = utils.ParseDurationString(dataStr); err != nil {
+				return nil, err
+			}
+		}
+
+		if ptr {
+			return &duration, nil
+		}
+
+		return duration, nil
+	}
+}