basicauth: remove magic number (#1760)

aebe387f · Ning Xie · Matt Holt · 09850246 · aebe387f
Commit aebe387f authored Jul 13, 2017 by Ning Xie Committed by Matt Holt Jul 12, 2017
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caddyhttp/basicauth/setup.go caddyhttp/basicauth/setup.go +3 -2

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--- a/caddyhttp/basicauth/setup.go
+++ b/caddyhttp/basicauth/setup.go
@@ -91,8 +91,9 @@ func basicAuthParse(c *caddy.Controller) ([]Rule, error) {
 }
 func passwordMatcher(username, passw, siteRoot string) (PasswordMatcher, error) {
-	if !strings.HasPrefix(passw, "htpasswd=") {
+	htpasswdPrefix := "htpasswd="
+	if !strings.HasPrefix(passw, htpasswdPrefix) {
 		return PlainMatcher(passw), nil
 	}
-	return GetHtpasswdMatcher(passw[9:], username, siteRoot)
+	return GetHtpasswdMatcher(passw[len(htpasswdPrefix):], username, siteRoot)
 }