func (mon *Monitor) report(url *http.URL, every int64) {
i := 0
for {
// Sleep between updates
if i > 0 {
time.Sleep(every)
}
i++
// Prepare HTTP request
jj, err := mon.dumper.MarshalJSON()
if err != nil {
continue
}
//printJSON(jj)
repbuf, err := EncodeReport(jj, mon.key)
if err != nil {
continue
}
bodylen, body := http.BytesToBody(repbuf)
req := &http.Request{
Method: "POST",
URL: url,
Body: body,
ContentLength: int64(bodylen),
Close: true,
UserAgent: sys.Name + "-Client-Monitor",
}
// Connect
conn, err := net.Dial("tcp", "", url.Host)
if err != nil {
if conn != nil {
conn.Close()
}
continue
}
cc := http.NewClientConn(conn, nil)
// Send request
wch := make(chan int, 1)
req.Body = http.NewRunOnClose(req.Body, func() { wch <- 1 })
err = cc.Write(req)
if err != nil {
cc.Close()
conn.Close()
} else {
<-wch // wait until the request has been sent
cc.Close()
conn.Close()
}
}
}
func askForGreenLight() bool {
url, err := http.ParseURL(sys.TangraServerURL)
if err != nil {
panic("tangra, bad URL")
}
req := &http.Request{
Method: "GET",
URL: url,
Close: true,
UserAgent: sys.Name + "-Client-Tangra",
}
req.Header = make(map[string]string)
req.Header["Tonika-Build"] = sys.Build
req.Header["Tonika-Released"] = sys.Released
// Connect
conn, err := net.Dial("tcp", "", url.Host)
if err != nil {
if conn != nil {
conn.Close()
}
return true
}
cc := http.NewClientConn(conn, nil)
// Send request
err = cc.Write(req)
if err != nil {
cc.Close()
conn.Close()
return true
}
resp, err := cc.Read()
if err != nil {
cc.Close()
conn.Close()
return true
}
cc.Close()
conn.Close()
if resp.Header == nil {
return true
}
green, ok := resp.Header["Green"]
if !ok {
return true
}
green = strings.TrimSpace(green)
if green == "Halt" {
return false
}
return true
}