s/MeekChannel/BrokerChannel (close #14) and more informative TODOs

client/meek-webrtc.go

@@ -1,74 +0,0 @@
-// Exchange WebRTC SessionDescriptions over a domain-fronted HTTP
-// signaling channel.
-package main
-
-import (
-	"bytes"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"net/url"
-
-	"github.com/keroserene/go-webrtc"
-)
-
-// Meek Signalling Channel.
-type MeekChannel struct {
-	// The Host header to put in the HTTP request (optional and may be
-	// different from the host name in URL).
-	Host      string
-	url       *url.URL
-	transport http.Transport // Used to make all requests.
-}
-
-// Construct a new MeekChannel, where:
-// |broker| is the full URL of the facilitating program which assigns proxies
-// to clients, and |front| is the option fronting domain.
-func NewMeekChannel(broker string, front string) *MeekChannel {
-	targetURL, err := url.Parse(broker)
-	if nil != err {
-		return nil
-	}
-	mc := new(MeekChannel)
-	mc.url = targetURL
-	if "" != front { // Optional front domain.
-		mc.Host = mc.url.Host
-		mc.url.Host = front
-	}
-
-	// We make a copy of DefaultTransport because we want the default Dial
-	// and TLSHandshakeTimeout settings. But we want to disable the default
-	// ProxyFromEnvironment setting.
-	mc.transport = *http.DefaultTransport.(*http.Transport)
-	mc.transport.Proxy = nil
-	return mc
-}
-
-// Roundtrip HTTP POST using WebRTC SessionDescriptions.
-//
-// Sends an SDP offer to the meek broker, which assigns a proxy and responds
-// with an SDP answer from a designated remote WebRTC peer.
-func (mc *MeekChannel) Negotiate(offer *webrtc.SessionDescription) (
-	*webrtc.SessionDescription, error) {
-	data := bytes.NewReader([]byte(offer.Serialize()))
-	// Suffix with broker's client registration handler.
-	request, err := http.NewRequest("POST", mc.url.String()+"client", data)
-	if nil != err {
-		return nil, err
-	}
-	if "" != mc.Host { // Set true host if necessary.
-		request.Host = mc.Host
-	}
-	resp, err := mc.transport.RoundTrip(request)
-	if nil != err {
-		return nil, err
-	}
-	defer resp.Body.Close()
-	log.Printf("MeekChannel Response:\n%s\n\n", resp.Status)
-	body, err := ioutil.ReadAll(resp.Body)
-	if nil != err {
-		return nil, err
-	}
-	answer := webrtc.DeserializeSessionDescription(string(body))
-	return answer, nil
-}