dkforest

commit cfb33f56efdccd488cf3acad91ec4ec1924c870a
parent b4f535e8a19fcf60c735b8d58007dd19f128a3a7
Author: n0tr1v <n0tr1v@protonmail.com>
Date:   Fri,  6 Oct 2023 15:08:25 -0400

fix rand.Rand not being thread safe

Diffstat:
M
pkg/captcha/captcha.go
 | 
4
+---

1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/pkg/captcha/captcha.go b/pkg/captcha/captcha.go
@@ -75,8 +75,6 @@ var (
 	globalStore = NewMemoryStore(CollectNum, Expiration)
 )
 
-var rnd = rand.New(rand.NewSource(time.Now().UnixNano()))
-
 // SetCustomStore sets custom storage for captchas, replacing the default
 // memory store. This function must be called before generating any captchas.
 func SetCustomStore(s Store) {
@@ -124,7 +122,7 @@ func NewWithSolution(seed int64) (id string, answer string, captchaImg string, c
 }
 
 func newLen(params Params, isHelpImg bool) (id, b64 string) {
-	r := rnd
+	r := rand.New(rand.NewSource(time.Now().UnixNano())) // rand.New is not thread-safe
 	s := globalStore
 	if params.Store != nil {
 		s = params.Store