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Add Go 1.8 TLS tracing support & refactor timing code #128

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Add Go 1.8 TLS tracing support & refactor timing code #128

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73 changes: 41 additions & 32 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -221,29 +221,30 @@ func dialContext(network string) func(ctx context.Context, network, addr string)
func visit(url *url.URL) {
req := newRequest(httpMethod, url, postBody)

var t0, t1, t2, t3, t4, t5, t6 time.Time
var tStart, tDNSStart, tDNSEnd, tConnectStart, tConnectEnd, tTLSStart, tTLSEnd, tConnected, tTTBF, tDone time.Time

trace := &httptrace.ClientTrace{
DNSStart: func(_ httptrace.DNSStartInfo) { t0 = time.Now() },
DNSDone: func(_ httptrace.DNSDoneInfo) { t1 = time.Now() },
GetConn: func(_ string) { tStart = time.Now() },
DNSStart: func(_ httptrace.DNSStartInfo) { tDNSStart = time.Now() },
DNSDone: func(_ httptrace.DNSDoneInfo) { tDNSEnd = time.Now() },
ConnectStart: func(_, _ string) {
if t1.IsZero() {
if tConnectStart.IsZero() {
// connecting to IP
t1 = time.Now()
tConnectStart = time.Now()
}
},
ConnectDone: func(net, addr string, err error) {
if err != nil {
log.Fatalf("unable to connect to host %v: %v", addr, err)
}
t2 = time.Now()
tConnectEnd = time.Now()

printf("\n%s%s\n", color.GreenString("Connected to "), color.CyanString(addr))
},
GotConn: func(_ httptrace.GotConnInfo) { t3 = time.Now() },
GotFirstResponseByte: func() { t4 = time.Now() },
TLSHandshakeStart: func() { t5 = time.Now() },
TLSHandshakeDone: func(_ tls.ConnectionState, _ error) { t6 = time.Now() },
TLSHandshakeStart: func() { tTLSStart = time.Now() },
TLSHandshakeDone: func(_ tls.ConnectionState, _ error) { tTLSEnd = time.Now() },
GotConn: func(_ httptrace.GotConnInfo) { tConnected = time.Now() },
GotFirstResponseByte: func() { tTTBF = time.Now() },
}
req = req.WithContext(httptrace.WithClientTrace(context.Background(), trace))

Expand Down Expand Up @@ -300,10 +301,18 @@ func visit(url *url.URL) {
bodyMsg := readResponseBody(req, resp)
resp.Body.Close()

t7 := time.Now() // after read body
if t0.IsZero() {
// we skipped DNS
t0 = t1
tDone = time.Now() // after read body
if tDNSStart.IsZero() {
tDNSStart = tStart
tDNSEnd = tStart
}
if tConnectStart.IsZero() {
tConnectStart = tStart
tConnectEnd = tStart
}
if tTLSStart.IsZero() {
tTLSStart = tStart
tTLSEnd = tStart
}

// print status line and headers
Expand Down Expand Up @@ -341,27 +350,27 @@ func visit(url *url.URL) {
switch url.Scheme {
case "https":
printf(colorize(HTTPSTemplate),
fmta(t1.Sub(t0)), // dns lookup
fmta(t2.Sub(t1)), // tcp connection
fmta(t6.Sub(t5)), // tls handshake
fmta(t4.Sub(t3)), // server processing
fmta(t7.Sub(t4)), // content transfer
fmtb(t1.Sub(t0)), // namelookup
fmtb(t2.Sub(t0)), // connect
fmtb(t3.Sub(t0)), // pretransfer
fmtb(t4.Sub(t0)), // starttransfer
fmtb(t7.Sub(t0)), // total
fmta(tDNSEnd.Sub(tDNSStart)), // dns lookup
fmta(tConnectEnd.Sub(tConnectStart)), // tcp connection
fmta(tTLSEnd.Sub(tTLSStart)), // tls handshake
fmta(tTTBF.Sub(tConnected)), // server processing
fmta(tDone.Sub(tTTBF)), // content transfer
fmtb(tDNSEnd.Sub(tStart)), // namelookup
fmtb(tConnectEnd.Sub(tStart)), // connect
fmtb(tConnected.Sub(tStart)), // pretransfer
fmtb(tTTBF.Sub(tStart)), // starttransfer
fmtb(tDone.Sub(tStart)), // total
)
case "http":
printf(colorize(HTTPTemplate),
fmta(t1.Sub(t0)), // dns lookup
fmta(t3.Sub(t1)), // tcp connection
fmta(t4.Sub(t3)), // server processing
fmta(t7.Sub(t4)), // content transfer
fmtb(t1.Sub(t0)), // namelookup
fmtb(t3.Sub(t0)), // connect
fmtb(t4.Sub(t0)), // starttransfer
fmtb(t7.Sub(t0)), // total
fmta(tDNSEnd.Sub(tDNSStart)), // dns lookup
fmta(tConnectEnd.Sub(tConnectStart)), // tcp connection
fmta(tTTBF.Sub(tConnected)), // server processing
fmta(tDone.Sub(tTTBF)), // content transfer
fmtb(tDNSEnd.Sub(tStart)), // namelookup
fmtb(tConnectEnd.Sub(tStart)), // connect
fmtb(tTTBF.Sub(tStart)), // starttransfer
fmtb(tDone.Sub(tStart)), // total
)
}

Expand Down