add common referrer options

proxychain/requestmodifers/spoof_referrer_from_weibo_post.go

@@ -0,0 +1,22 @@
+package requestmodifers
+
+import (
+	"fmt"
+	"ladder/proxychain"
+	"math/rand"
+)
+
+// SpoofReferrerFromWeiboPost modifies the referrer header
+// pretending to be from a Weibo post (popular in China)
+func SpoofReferrerFromWeiboPost(url string) proxychain.RequestModification {
+	return func(chain *proxychain.ProxyChain) error {
+		referrer := fmt.Sprintf("http://weibo.com/u/%d", rand.Intn(90001))
+		chain.AddRequestModifications(
+			SpoofReferrer(referrer),
+			SetRequestHeader("sec-fetch-site", "cross-site"),
+			SetRequestHeader("sec-fetch-dest", "document"),
+			SetRequestHeader("sec-fetch-mode", "navigate"),
+		)
+		return nil
+	}
+}