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Code Issues Releases Activity

Fix IMGPROXY_CACHE_CONTROL_PASSTHROUGH + IMGPROXY_FALLBACK_IMAGE_TTL behavior

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This commit is contained in:
DarthSim
2023-07-25 18:58:05 +03:00
parent 94492e812c
commit fd2566a489
2 changed files with 14 additions and 6 deletions
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16
processing_handler.go
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@@ -57,15 +57,20 @@ func initProcessingHandler() {
func setCacheControl(rw http.ResponseWriter, force *time.Time, originHeaders map[string]string) {
var cacheControl, expires string
var ttl int
if force != nil {
ttl := -1
if _, ok := originHeaders["Fallback-Image"]; ok && config.FallbackImageTTL > 0 {
ttl = config.FallbackImageTTL
}
if force != nil && (ttl < 0 || force.Before(time.Now().Add(time.Duration(ttl)*time.Second))) {
rw.Header().Set("Cache-Control", fmt.Sprintf("max-age=%d, public", int(time.Until(*force).Seconds())))
rw.Header().Set("Expires", force.Format(http.TimeFormat))
return
}
if config.CacheControlPassthrough && originHeaders != nil {
if config.CacheControlPassthrough && ttl < 0 && originHeaders != nil {
if val, ok := originHeaders["Cache-Control"]; ok && len(val) > 0 {
cacheControl = val
}
@@ -75,9 +80,8 @@ func setCacheControl(rw http.ResponseWriter, force *time.Time, originHeaders map
}
if len(cacheControl) == 0 && len(expires) == 0 {
ttl = config.TTL
if _, ok := originHeaders["Fallback-Image"]; ok && config.FallbackImageTTL > 0 {
ttl = config.FallbackImageTTL
if ttl < 0 {
ttl = config.TTL
}
cacheControl = fmt.Sprintf("max-age=%d, public", ttl)
expires = time.Now().Add(time.Second * time.Duration(ttl)).Format(http.TimeFormat)