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![Igor Rzegocki](/assets/img/avatar_default.png)
* feat(auth): reverse proxy authentication support - #176 * address PR remarks * Fix redaction of UI appConfig Co-authored-by: Deluan <deluan@navidrome.org>
88 lines
2 KiB
Go
Executable file
88 lines
2 KiB
Go
Executable file
package log
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// Copied from https://github.com/whuang8/redactrus (MIT License)
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// Copyright (c) 2018 William Huang
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import (
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"fmt"
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"reflect"
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"regexp"
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"github.com/sirupsen/logrus"
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)
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// Hook is a logrus hook for redacting information from logs
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type Hook struct {
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// Messages with a log level not contained in this array
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// will not be dispatched. If empty, all messages will be dispatched.
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AcceptedLevels []logrus.Level
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RedactionList []string
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redactionKeys []*regexp.Regexp
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}
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// Levels returns the user defined AcceptedLevels
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// If AcceptedLevels is empty, all logrus levels are returned
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func (h *Hook) Levels() []logrus.Level {
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if len(h.AcceptedLevels) == 0 {
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return logrus.AllLevels
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}
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return h.AcceptedLevels
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}
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// Fire redacts values in an log Entry that match
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// with keys defined in the RedactionList
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func (h *Hook) Fire(e *logrus.Entry) error {
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if err := h.initRedaction(); err != nil {
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return err
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}
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for _, re := range h.redactionKeys {
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// Redact based on key matching in Data fields
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for k, v := range e.Data {
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if re.MatchString(k) {
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e.Data[k] = "[REDACTED]"
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continue
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}
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// Redact based on value matching in Data fields
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switch reflect.TypeOf(v).Kind() {
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case reflect.String:
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e.Data[k] = re.ReplaceAllString(v.(string), "$1[REDACTED]$2")
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continue
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case reflect.Map:
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s := fmt.Sprintf("%+v", v)
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e.Data[k] = re.ReplaceAllString(s, "$1[REDACTED]$2")
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continue
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}
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}
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// Redact based on text matching in the Message field
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e.Message = re.ReplaceAllString(e.Message, "$1[REDACTED]$2")
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}
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return nil
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}
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func (h *Hook) initRedaction() error {
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if len(h.redactionKeys) == 0 {
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for _, redactionKey := range h.RedactionList {
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re, err := regexp.Compile(redactionKey)
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if err != nil {
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return err
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}
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h.redactionKeys = append(h.redactionKeys, re)
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}
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}
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return nil
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}
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func (h *Hook) redact(msg string) (string, error) {
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if err := h.initRedaction(); err != nil {
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return msg, err
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}
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for _, re := range h.redactionKeys {
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msg = re.ReplaceAllString(msg, "$1[REDACTED]$2")
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}
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return msg, nil
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}
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