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可以在缓存条件里设置Expires Header

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GoEdgeLab
2021-12-08 17:41:39 +08:00
parent 54bf0ab39d
commit c96406ff64
3 changed files with 38 additions and 1 deletions
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19
internal/nodes/http_request_cache.go
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@@ -241,7 +241,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
// 这里强制设置Last-Modified，如果先前源站设置了Last-Modified，将会被覆盖，避免因为源站的Last-Modified导致源站返回304 Not Modified
var modifiedTime = ""
if lastModifiedAt > 0 {
modifiedTime = time.Unix(lastModifiedAt, 0).Format("Mon, 02 Jan 2006 15:04:05 GMT")
modifiedTime = time.Unix(utils.GMTUnixTime(lastModifiedAt), 0).Format("Mon, 02 Jan 2006 15:04:05") + " GMT"
respHeader.Set("Last-Modified", modifiedTime)
}
@@ -268,6 +268,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
}
this.processResponseHeaders(reader.Status())
this.addExpiresHeader(reader.ExpiresAt())
// 输出Body
if this.RawReq.Method == http.MethodHead {
@@ -441,3 +442,19 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
return true
}
// 设置Expires Header
func (this *HTTPRequest) addExpiresHeader(expiresAt int64) {
if this.cacheRef.ExpiresTime != nil && this.cacheRef.ExpiresTime.IsPrior && this.cacheRef.ExpiresTime.IsOn {
if this.cacheRef.ExpiresTime.Overwrite || len(this.writer.Header().Get("Expires")) == 0 {
if this.cacheRef.ExpiresTime.AutoCalculate {
this.writer.Header().Set("Expires", time.Unix(utils.GMTUnixTime(expiresAt), 0).Format("Mon, 2 Jan 2006 15:04:05")+" GMT")
} else if this.cacheRef.ExpiresTime.Duration != nil {
var duration = this.cacheRef.ExpiresTime.Duration.Duration()
if duration > 0 {
this.writer.Header().Set("Expires", utils.GMTTime(time.Now().Add(duration)).Format("Mon, 2 Jan 2006 15:04:05")+" GMT")
}
}
}
}
}