From 177ecb3de2f9ca8e23c3eeb19b6875a0c6593355 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Thu, 8 Sep 2022 13:27:37 +0800
Subject: Support specify IP network type (ipv4, ipv6, in arbitrary combination
 and priority)

---
 bilibili/request.go | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'bilibili/request.go')

diff --git a/bilibili/request.go b/bilibili/request.go
index c31cf75..f9e2088 100644
--- a/bilibili/request.go
+++ b/bilibili/request.go
@@ -1,9 +1,11 @@
 package bilibili
 
 import (
+	"bilibili-livestream-archiver/common"
 	"encoding/json"
 	"io"
 	"log"
+	"net"
 	"net/http"
 	"strings"
 )
@@ -37,7 +39,7 @@ func callGet[T BaseResponse[V], V any](b Bilibili, url string) (resp T, err erro
 		return
 	}
 
-	r, err := b.http.Do(req)
+	r, err := b.Do(req)
 	if err != nil {
 		logger.Printf("ERROR: HTTP Request failed on API %v: %v", url, err)
 		return
@@ -66,3 +68,25 @@ func callGet[T BaseResponse[V], V any](b Bilibili, url string) (resp T, err erro
 	b.debug.Printf("HTTP %v, len: %v bytes, url: %v", r.StatusCode, len(data), url)
 	return
 }
+
+func (b Bilibili) Do(req *http.Request) (resp *http.Response, err error) {
+	transport := http.DefaultTransport.(*http.Transport).Clone()
+	transport.DialTLSContext = nil
+
+	np := newNetProbe(b.netTypes)
+	var dialer net.Dialer
+	for netCtx, typeName := np.NextNetworkType(dialer); netCtx != nil; netCtx, typeName = np.NextNetworkType(dialer) {
+		transport.DialContext = netCtx
+		b.http.Transport = transport
+		resp, err = b.http.Do(req)
+
+		isOpErr := common.IsErrorOfType(err, &net.OpError{})
+		isAddrErr := common.IsErrorOfType(err, &net.AddrError{})
+		if err == nil || !isOpErr || !isAddrErr {
+			// return the first success request
+			b.loggerCommon.info.Printf("Request success with network %v.", typeName)
+			return
+		}
+	}
+	return
+}
-- 
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