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package main
import (
"fmt"
"net/http"
"strings"
"time"
"go.wit.com/lib/gui/shell"
"go.wit.com/log"
)
// remove '?' part and trailing '/'
func cleanURL(url string) string {
url = "/" + strings.Trim(url, "/")
return url
}
func okHandler(w http.ResponseWriter, r *http.Request) {
var tmp string
tmp = cleanURL(r.URL.Path)
// list all the droplets
if tmp == "/droplets" {
log.Info("Handling URL:", tmp)
for _, d := range me.droplets {
dur := time.Since(d.lastpoll) // Calculate the elapsed time
fmt.Fprintln(w, d.Hostname, d.hname, shell.FormatDuration(dur))
}
return
}
// is the cluster running what it should?
if tmp == "/droplets" {
for _, d := range me.droplets {
if d.State != "ON" {
continue
}
dur := time.Since(d.lastpoll) // Calculate the elapsed time
if d.CurrentState != "ON" {
fmt.Fprintln(w, "BAD STATE ", d.Hostname, "State =", d.State, "CurrentState =", d.CurrentState, shell.FormatDuration(dur))
} else {
dur := time.Since(d.lastpoll) // Calculate the elapsed time
fmt.Fprintln(w, "GOOD STATE ON", d.Hostname, d.hname, shell.FormatDuration(dur))
}
}
return
}
if tmp == "/favicon.ico" {
writeFile(w, "ipv6.png")
return
}
if tmp == "/uptime" {
b, s := clusterHealthy()
if b {
log.Info("Handling URL:", tmp, "cluster is ok", s)
fmt.Fprintln(w, s)
} else {
log.Info("Handling URL:", tmp, "cluster is not right yet", s)
fmt.Fprintln(w, s)
}
for _, h := range me.hypers {
url := "http://" + h.Hostname + ":2520/kill"
dur := time.Since(h.lastpoll) // Calculate the elapsed time
if dur > 90*time.Second {
h.RestartDaemon()
continue
}
if h.killcount != 0 {
log.Info("KILL count =", h.killcount, "FOR", h.Hostname, dur, "curl", url)
}
if h.killcount > 10 {
log.Info("KILL count is greater than 10 for host", h.Hostname, dur, "curl", url)
}
// l := shell.FormatDuration(dur)
// log.Warn("HOST =", h.Hostname, "Last poll =", l)
//if d.State != "ON" {
// continue
//}
// dur := time.Since(d.lastpoll) // Calculate the elapsed time
}
return
}
if tmp == "/start" {
start := r.URL.Query().Get("start")
log.Info("Handling URL:", tmp, "start droplet", start)
dur := time.Since(me.unstable) // how long has the cluster been stable?
fmt.Fprintln(w, "should start droplet here", start, shell.FormatDuration(dur))
if dur < 17*time.Second {
fmt.Fprintln(w, "grid is still to unstable")
return
}
d := findDroplet(start)
if d == nil {
fmt.Fprintln(w, "can't start unknown droplet", start)
return
}
for _, h := range me.hypers {
fmt.Fprintln(w, "could start droplet on", start, "on", h.Hostname, h.Active)
}
return
}
log.Warn("BAD URL =", tmp)
fmt.Fprintln(w, "BAD ZOOT")
// badurl(w, r.URL.String())
// fmt.Fprintln(w, "BAD", tmp)
}
func writeFile(w http.ResponseWriter, filename string) {
// fmt.Fprintln(w, "GOT TEST?")
fullname := "resources/" + filename
pfile, err := resources.ReadFile(fullname)
if err != nil {
log.Println("ERROR:", err)
// w.Write(pfile)
return
}
var repohtml string
repohtml = string(pfile)
if filename == "goReference.svg" {
w.Header().Set("Content-Type", "image/svg+xml")
}
fmt.Fprintln(w, repohtml)
log.Println("writeFile() found internal file:", filename)
}
// starts and sits waiting for HTTP requests
func startHTTP() {
http.HandleFunc("/", okHandler)
p := fmt.Sprintf(":%d", argv.Port)
log.Println("Running on port", p)
err := http.ListenAndServe(p, nil)
if err != nil {
log.Println("Error starting server:", err)
}
}
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