support providing a DialContext for the http client (#786)

diff --git a/client.go b/client.go
index e0aea9527a6100d4e4a55a20d275a953fca16952..a77aea84b6fe87702a0d1863592d2b19ed0899fa 100644 (file)
--- a/client.go
+++ b/client.go
@@ -203,7 +203,8 @@ func (cl *Client) init(cfg *ClientConfig) {
        cl.ipBlockList = cfg.IPBlocklist
        cl.httpClient = &http.Client{
                Transport: &http.Transport{
-                       Proxy: cfg.HTTPProxy,
+                       Proxy:       cfg.HTTPProxy,
+                       DialContext: cfg.HTTPDialContext,
                        // I think this value was observed from some webseeds. It seems reasonable to extend it
                        // to other uses of HTTP from the client.
                        MaxConnsPerHost: 10,

diff --git a/config.go b/config.go
index 11e70d6830f45dd616f75e774ba732f1c889ee5a..1189872ee9e26435c60259b1fe22a7ff767ebd8a 100644 (file)
--- a/config.go
+++ b/config.go
@@ -91,6 +91,8 @@ type ClientConfig struct {
        // Defines proxy for HTTP requests, such as for trackers. It's commonly set from the result of
        // "net/http".ProxyURL(HTTPProxy).
        HTTPProxy func(*http.Request) (*url.URL, error)
+       // Defines DialContext func to use for HTTP requests, such as for fetching metainfo and webtorrent seeds
+       HTTPDialContext func(ctx context.Context, network, addr string) (net.Conn, error)
        // Defines DialContext func to use for HTTP tracker announcements
        TrackerDialContext func(ctx context.Context, network, addr string) (net.Conn, error)
        // Defines ListenPacket func to use for UDP tracker announcements