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[tor-commits] [snowflake/master] Formatting improvements.



commit d6467ff5854627dcaefbef89bdd348bfe461da12
Author: David Fifield <david@xxxxxxxxxxxxxxx>
Date:   Tue Dec 24 18:01:17 2019 -0700

    Formatting improvements.
---
 client/lib/interfaces.go |  1 -
 client/lib/peers.go      |  9 ++++-----
 client/lib/rendezvous.go |  8 +++-----
 client/snowflake.go      | 22 +++++++++++-----------
 server/server.go         |  4 ++--
 5 files changed, 20 insertions(+), 24 deletions(-)

diff --git a/client/lib/interfaces.go b/client/lib/interfaces.go
index 609e610..f6e8240 100644
--- a/client/lib/interfaces.go
+++ b/client/lib/interfaces.go
@@ -30,7 +30,6 @@ type Tongue interface {
 // Interface for collecting some number of Snowflakes, for passing along
 // ultimately to the SOCKS handler.
 type SnowflakeCollector interface {
-
 	// Add a Snowflake to the collection.
 	// Implementation should decide how to connect and maintain the webRTCConn.
 	Collect() (Snowflake, error)
diff --git a/client/lib/peers.go b/client/lib/peers.go
index 5493bfd..12213e1 100644
--- a/client/lib/peers.go
+++ b/client/lib/peers.go
@@ -44,8 +44,7 @@ func (p *Peers) Collect() (Snowflake, error) {
 	cnt := p.Count()
 	s := fmt.Sprintf("Currently at [%d/%d]", cnt, p.capacity)
 	if cnt >= p.capacity {
-		s = fmt.Sprintf("At capacity [%d/%d]", cnt, p.capacity)
-		return nil, errors.New(s)
+		return nil, fmt.Errorf("At capacity [%d/%d]", cnt, p.capacity)
 	}
 	log.Println("WebRTC: Collecting a new Snowflake.", s)
 	// Engage the Snowflake Catching interface, which must be available.
@@ -68,12 +67,12 @@ func (p *Peers) Pop() Snowflake {
 	// Blocks until an available, valid snowflake appears.
 	var snowflake Snowflake
 	var ok bool
-	for nil == snowflake {
+	for snowflake == nil {
 		snowflake, ok = <-p.snowflakeChan
-		conn := snowflake.(*WebRTCPeer)
 		if !ok {
 			return nil
 		}
+		conn := snowflake.(*WebRTCPeer)
 		if conn.closed {
 			snowflake = nil
 		}
@@ -120,5 +119,5 @@ func (p *Peers) End() {
 		p.activePeers.Remove(e)
 		e = next
 	}
-	log.Println("WebRTC: melted all", cnt, "snowflakes.")
+	log.Printf("WebRTC: melted all %d snowflakes.", cnt)
 }
diff --git a/client/lib/rendezvous.go b/client/lib/rendezvous.go
index 0c7225b..0b15f68 100644
--- a/client/lib/rendezvous.go
+++ b/client/lib/rendezvous.go
@@ -50,13 +50,13 @@ func CreateBrokerTransport() http.RoundTripper {
 // to clients, and |front| is the option fronting domain.
 func NewBrokerChannel(broker string, front string, transport http.RoundTripper) *BrokerChannel {
 	targetURL, err := url.Parse(broker)
-	if nil != err {
+	if err != nil {
 		return nil
 	}
 	log.Println("Rendezvous using Broker at:", broker)
 	bc := new(BrokerChannel)
 	bc.url = targetURL
-	if "" != front { // Optional front domain.
+	if front != "" { // Optional front domain.
 		log.Println("Domain fronting using:", front)
 		bc.Host = bc.url.Host
 		bc.url.Host = front
@@ -109,7 +109,6 @@ func (bc *BrokerChannel) Negotiate(offer *webrtc.SessionDescription) (
 		}
 		answer := deserializeSessionDescription(string(body))
 		return answer, nil
-
 	case http.StatusServiceUnavailable:
 		return nil, errors.New(BrokerError503)
 	case http.StatusBadRequest:
@@ -125,8 +124,7 @@ type WebRTCDialer struct {
 	webrtcConfig *webrtc.Configuration
 }
 
-func NewWebRTCDialer(
-	broker *BrokerChannel, iceServers []webrtc.ICEServer) *WebRTCDialer {
+func NewWebRTCDialer(broker *BrokerChannel, iceServers []webrtc.ICEServer) *WebRTCDialer {
 	var config webrtc.Configuration
 	if iceServers != nil {
 		config = webrtc.Configuration{
diff --git a/client/snowflake.go b/client/snowflake.go
index 28bf7e9..bd53f65 100644
--- a/client/snowflake.go
+++ b/client/snowflake.go
@@ -30,9 +30,9 @@ func ConnectLoop(snowflakes sf.SnowflakeCollector) {
 	for {
 		// Check if ending is necessary.
 		_, err := snowflakes.Collect()
-		if nil != err {
-			log.Println("WebRTC:", err,
-				" Retrying in", sf.ReconnectTimeout, "seconds...")
+		if err != nil {
+			log.Printf("WebRTC: %v  Retrying in %v seconds...",
+				err, sf.ReconnectTimeout)
 		}
 		select {
 		case <-time.After(time.Second * sf.ReconnectTimeout):
@@ -52,7 +52,7 @@ func socksAcceptLoop(ln *pt.SocksListener, snowflakes sf.SnowflakeCollector) {
 		log.Println("SOCKS listening...")
 		conn, err := ln.AcceptSocks()
 		if err != nil {
-			if e, ok := err.(net.Error); ok && e.Temporary() {
+			if err, ok := err.(net.Error); ok && err.Temporary() {
 				continue
 			}
 			log.Printf("SOCKS accept error: %s", err)
@@ -66,7 +66,7 @@ func socksAcceptLoop(ln *pt.SocksListener, snowflakes sf.SnowflakeCollector) {
 	}
 }
 
-//s is a comma-separated list of ICE server URLs
+// s is a comma-separated list of ICE server URLs.
 func parseIceServers(s string) []webrtc.ICEServer {
 	var servers []webrtc.ICEServer
 	log.Println(s)
@@ -98,9 +98,9 @@ func main() {
 
 	log.SetFlags(log.LstdFlags | log.LUTC)
 
-	// Don't write to stderr; versions of tor earlier than about
-	// 0.3.5.6 do not read from the pipe, and eventually we will
-	// deadlock because the buffer is full.
+	// Don't write to stderr; versions of tor earlier than about 0.3.5.6 do
+	// not read from the pipe, and eventually we will deadlock because the
+	// buffer is full.
 	// https://bugs.torproject.org/26360
 	// https://bugs.torproject.org/25600#comment:14
 	var logOutput = ioutil.Discard
@@ -120,7 +120,7 @@ func main() {
 		defer logFile.Close()
 		logOutput = logFile
 	}
-	//We want to send the log output through our scrubber first
+	// We want to send the log output through our scrubber first
 	log.SetOutput(&safelog.LogScrubber{Output: logOutput})
 
 	log.Println("\n\n\n --- Starting Snowflake Client ---")
@@ -194,10 +194,10 @@ func main() {
 		}()
 	}
 
-	// wait for a signal
+	// Wait for a signal.
 	<-sigChan
 
-	// signal received, shut down
+	// Signal received, shut down.
 	for _, ln := range listeners {
 		ln.Close()
 	}
diff --git a/server/server.go b/server/server.go
index 785b545..5ed56d3 100644
--- a/server/server.go
+++ b/server/server.go
@@ -345,10 +345,10 @@ func main() {
 		}()
 	}
 
-	// wait for a signal
+	// Wait for a signal.
 	sig := <-sigChan
 
-	// signal received, shut down
+	// Signal received, shut down.
 	log.Printf("caught signal %q, exiting", sig)
 	for _, server := range servers {
 		server.Close()

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