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package main
import (
"fmt"
"io/ioutil"
"net/http"
"strings"
"go.wit.com/lib/protobuf/zoopb"
"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) {
// log.Info("Got URL Path: ", r.URL.Path)
route := cleanURL(r.URL.Path)
hostname := r.URL.Query().Get("hostname")
flag := r.URL.Query().Get("flag")
packname := r.URL.Query().Get("package")
version := r.URL.Query().Get("version")
msg, err := ioutil.ReadAll(r.Body) // Read the body as []byte
if err != nil {
log.Info("ReadAll() error =", err)
return
}
if route == "/" {
return
}
if route == "/machine" {
var m *zoopb.Machine
m = new(zoopb.Machine)
if err := m.Unmarshal(msg); err != nil {
log.Info("proto.Unmarshal() failed on wire message len", len(msg))
log.Info("error =", err)
return
}
log.Log(INFO, "proto.Unmarshal() worked on wire message len", len(msg), "from", m.Hostname)
b := me.upgrade[m.Hostname]
switch updateMachine(m) {
case "upgrade":
if b {
fmt.Fprintln(w, "apt update")
me.upgrade[m.Hostname] = false
} else {
fmt.Fprintln(w, "upgrade")
}
default:
fmt.Fprintln(w, "notsure")
}
return
}
if route == "/status" {
var packs *zoopb.Packages
packs = new(zoopb.Packages)
if err := packs.Unmarshal(msg); err != nil {
log.Info("/status proto.Unmarshal() failed on wire message len", len(msg), "from", hostname)
return
}
log.Info("/status Unmarshal worked with msg len", len(msg), "from", hostname)
log.Info("/status hostname", hostname, "has", packs.Len(), "packages installed")
fmt.Fprintln(w, "upgrade")
return
}
// list out the machines and thier version of zood
if route == "/list" {
log.HttpMode(w)
defer log.HttpMode(nil)
loop := me.machines.SortByHostname()
for loop.Scan() {
m := loop.Next()
zood := m.Packages.FindByName("zood")
v := me.targets["zood"] // this is the target version
if zood == nil {
log.Info("machine", m.Hostname, "does not have zood installed")
} else {
log.Info("zood version", zood.Version, "vs target version", v, "on machine", m.Hostname)
}
}
return
}
// save the config file
if route == "/save" {
log.HttpMode(w)
defer log.HttpMode(nil)
if err := me.machines.ConfigSave(); err == nil {
log.Log(NOW, "ConfigSave() ok")
} else {
log.Log(NOW, "ConfigSave() failed", err)
}
return
}
// flag a package to attempt to upgrade
if route == "/upgrade" {
log.HttpMode(w)
defer log.HttpMode(nil)
me.upgrade[hostname] = true
log.Log(NOW, "setting package ", packname, " to upgrade")
return
}
// set the target version for a package
if route == "/target" {
log.HttpMode(w)
defer log.HttpMode(nil)
me.targets[packname] = version
log.Log(NOW, "setting package/version to ", packname, " ", version)
return
}
// toggle logging flags
if route == "/flag" {
log.HttpMode(w)
defer log.HttpMode(nil)
log.Info("going to toggle flag:", flag)
switch flag {
case "ZOOD":
if ZOOD.Bool() {
log.Log(NOW, "toogle ZOOD false")
ZOOD.SetBool(false)
} else {
log.Log(NOW, "toogle ZOOD true")
ZOOD.SetBool(true)
}
default:
log.Info("unknown looging flag:", flag)
}
return
}
log.Warn("BAD URL =", route)
}
// 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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