Update nlopes/slack vendor

1 files changed, 0 insertions, 82 deletions

diff --git a/vendor/github.com/nlopes/slack/websocket_proxy.go b/vendor/github.com/nlopes/slack/websocket_proxy.go
deleted file mode 100644
index 27f1cf99..00000000
--- a/vendor/github.com/nlopes/slack/websocket_proxy.go
+++ /dev/null
@@ -1,82 +0,0 @@
-package slack
-
-import (
-	"crypto/tls"
-	"errors"
-	"net"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-	"os"
-	"strings"
-
-	"golang.org/x/net/websocket"
-)
-
-// Taken and reworked from: https://gist.github.com/madmo/8548738
-func websocketHTTPConnect(proxy, urlString string) (net.Conn, error) {
-	p, err := net.Dial("tcp", proxy)
-	if err != nil {
-		return nil, err
-	}
-
-	turl, err := url.Parse(urlString)
-	if err != nil {
-		return nil, err
-	}
-
-	req := http.Request{
-		Method: "CONNECT",
-		URL:    &url.URL{},
-		Host:   turl.Host,
-	}
-
-	cc := httputil.NewProxyClientConn(p, nil)
-	if _, err := cc.Do(&req); err != nil {
-		return nil, err
-	}
-
-	rwc, _ := cc.Hijack()
-
-	return rwc, nil
-}
-
-func websocketProxyDial(urlString, origin string) (ws *websocket.Conn, err error) {
-	if os.Getenv("HTTP_PROXY") == "" {
-		return websocket.Dial(urlString, "", origin)
-	}
-
-	purl, err := url.Parse(os.Getenv("HTTP_PROXY"))
-	if err != nil {
-		return nil, err
-	}
-
-	config, err := websocket.NewConfig(urlString, origin)
-	if err != nil {
-		return nil, err
-	}
-
-	client, err := websocketHTTPConnect(purl.Host, urlString)
-	if err != nil {
-		return nil, err
-	}
-
-	switch config.Location.Scheme {
-	case "ws":
-	case "wss":
-		tlsClient := tls.Client(client, &tls.Config{
-			ServerName: strings.Split(config.Location.Host, ":")[0],
-		})
-		err := tlsClient.Handshake()
-		if err != nil {
-			tlsClient.Close()
-			return nil, err
-		}
-		client = tlsClient
-
-	default:
-		return nil, errors.New("invalid websocket schema")
-	}
-
-	return websocket.NewClient(config, client)
-}