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stop rendering badges for HTTP304 responses

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This commit is contained in:
Knut Ahlers 2016-07-06 23:56:48 +02:00
parent 4550b4d861
commit 5eb8fb0286
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
1 changed files with 8 additions and 3 deletions
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11
app.go
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@ -167,16 +167,21 @@ func generateBadge(res http.ResponseWriter, r *http.Request) {
} }
func renderBadgeToResponse(res http.ResponseWriter, r *http.Request, title, text, color string) { func renderBadgeToResponse(res http.ResponseWriter, r *http.Request, title, text, color string) {
badge, eTag := createBadge(title, text, color) cacheKey := fmt.Sprintf("%x", sha1.Sum([]byte(fmt.Sprintf("%s::::%s::::%s", title, text, color))))
storedTag, _ := cacheStore.Get("eTag", cacheKey)
res.Header().Add("Cache-Control", "no-cache") res.Header().Add("Cache-Control", "no-cache")
res.Header().Add("ETag", eTag)
if r.Header.Get("If-None-Match") == eTag { if storedTag != "" && r.Header.Get("If-None-Match") == storedTag {
res.Header().Add("ETag", storedTag)
res.WriteHeader(http.StatusNotModified) res.WriteHeader(http.StatusNotModified)
return return
} }
badge, eTag := createBadge(title, text, color)
cacheStore.Set("eTag", cacheKey, eTag, time.Hour)
res.Header().Add("ETag", eTag)
res.Header().Add("Content-Type", "image/svg+xml") res.Header().Add("Content-Type", "image/svg+xml")
m := minify.New() m := minify.New()