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fix(anubis): improve challenge handling and error reporting (#645)

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Jason Cameron 2025-06-11 12:47:06 -04:00 • committed by GitHub
parent 6e2eeb9e65
commit bbdee34f37
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4 changed files with 16 additions and 10 deletions
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12
lib/anubis.go
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@ -288,15 +288,15 @@ func (s *Server) MakeChallenge(w http.ResponseWriter, r *http.Request) {
return
}
lg = lg.With("check_result", cr)
challenge := s.challengeFor(r, rule.Challenge.Difficulty)
chal := s.challengeFor(r, rule.Challenge.Difficulty)
s.SetCookie(w, anubis.TestCookieName, challenge, "/")
s.SetCookie(w, anubis.TestCookieName, chal, "/")
err = encoder.Encode(struct {
Rules *config.ChallengeRules `json:"rules"`
Challenge string `json:"challenge"`
}{
Challenge: challenge,
Challenge: chal,
Rules: rule.Challenge,
})
if err != nil {
@ -304,7 +304,7 @@ func (s *Server) MakeChallenge(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusInternalServerError)
return
}
lg.Debug("made challenge", "challenge", challenge, "rules", rule.Challenge, "cr", cr)
lg.Debug("made challenge", "challenge", chal, "rules", rule.Challenge, "cr", cr)
challengesIssued.WithLabelValues("api").Inc()
}
@ -317,7 +317,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
cookiePath = strings.TrimSuffix(anubis.BasePrefix, "/") + "/"
}
if _, err := r.Cookie(anubis.TestCookieName); err == http.ErrNoCookie {
if _, err := r.Cookie(anubis.TestCookieName); errors.Is(err, http.ErrNoCookie) {
s.ClearCookie(w, s.cookieName, cookiePath)
s.ClearCookie(w, anubis.TestCookieName, "/")
lg.Warn("user has cookies disabled, this is not an anubis bug")
@ -365,7 +365,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
challengeStr := s.challengeFor(r, rule.Challenge.Difficulty)
if err := impl.Validate(r, lg, rule, challengeStr); err != nil {
failedValidations.WithLabelValues(string(rule.Challenge.Algorithm)).Inc()
failedValidations.WithLabelValues(rule.Challenge.Algorithm).Inc()
var cerr *challenge.Error
s.ClearCookie(w, s.cookieName, cookiePath)
lg.Debug("challenge validate call failed", "err", err)