3
0
Files
corteza/cmd/crust/main.go
2019-04-29 18:51:18 +02:00

139 lines
3.7 KiB
Go

package main
import (
"log"
"net"
"net/http"
"os"
"path"
context "github.com/SentimensRG/ctx"
"github.com/SentimensRG/ctx/sigctx"
"github.com/go-chi/chi"
_ "github.com/joho/godotenv/autoload"
"github.com/namsral/flag"
compose "github.com/crusttech/crust/compose"
"github.com/crusttech/crust/internal/auth"
messaging "github.com/crusttech/crust/messaging"
system "github.com/crusttech/crust/system"
"github.com/crusttech/crust/internal/config"
"github.com/crusttech/crust/internal/metrics"
"github.com/crusttech/crust/internal/middleware"
"github.com/crusttech/crust/internal/routes"
"github.com/crusttech/crust/internal/subscription"
"github.com/crusttech/crust/internal/version"
)
// Serves index.html in case the requested file isn't found (or some other os.Stat error)
func serveIndex(assetPath string, indexPath string, serve http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
indexPage := path.Join(assetPath, indexPath)
requestedPage := path.Join(assetPath, r.URL.Path)
_, err := os.Stat(requestedPage)
if err != nil {
http.ServeFile(w, r, indexPage)
return
}
serve.ServeHTTP(w, r)
}
}
func main() {
// log to stdout not stderr
log.SetOutput(os.Stdout)
log.SetFlags(log.LstdFlags | log.Lshortfile)
log.Printf("Starting "+os.Args[0]+", version: %v, built on: %v", version.Version, version.BuildTime)
ctx := context.AsContext(sigctx.New())
var flags struct {
http *config.HTTP
monitor *config.Monitor
}
flags.http = new(config.HTTP).Init()
flags.monitor = new(config.Monitor).Init()
compose.Flags("compose")
messaging.Flags("messaging")
system.Flags("system")
authJwtFlags := new(config.JWT).Init()
subscription.Flags()
flag.Parse()
var command string
if len(os.Args) > 1 {
command = os.Args[1]
}
switch command {
case "help":
flag.PrintDefaults()
default:
// Initialize configuration of our services
if err := system.Init(ctx); err != nil {
log.Fatalf("Error initializing system: %+v", err)
}
if err := compose.Init(ctx); err != nil {
log.Fatalf("Error initializing compose: %+v", err)
}
if err := messaging.Init(ctx); err != nil {
log.Fatalf("Error initializing messaging: %+v", err)
}
// Checks subscription, will os.Exit(1) if there is an error
// Disabled for now, system service is the only one that validates subscription
// ctx = subscription.Monitor(ctx)
log.Println("Starting http server on address " + flags.http.Addr)
listener, err := net.Listen("tcp", flags.http.Addr)
if err != nil {
log.Fatalf("Can't listen on addr %s", flags.http.Addr)
}
if flags.monitor.Interval > 0 {
go metrics.NewMonitor(flags.monitor.Interval)
}
r := chi.NewRouter()
// logging, cors and such
middleware.Mount(ctx, r, flags.http)
// Use JWT secret for hmac signer for now
auth.DefaultSigner = auth.HmacSigner(authJwtFlags.Secret)
auth.DefaultJwtHandler, err = auth.JWT(authJwtFlags.Secret, authJwtFlags.Expiry)
if err != nil {
log.Fatalf("Error creating JWT Auth: %v", err)
}
r.Route("/api", func(r chi.Router) {
r.Route("/compose", func(r chi.Router) {
compose.MountRoutes(ctx, r)
})
r.Route("/messaging", func(r chi.Router) {
messaging.MountRoutes(ctx, r)
})
r.Route("/system", func(r chi.Router) {
system.MountRoutes(ctx, r)
})
middleware.MountSystemRoutes(ctx, r, flags.http)
})
fileserver := http.FileServer(http.Dir("webapp"))
for _, service := range []string{"admin", "system", "messaging", "compose"} {
r.HandleFunc("/"+service+"*", serveIndex("webapp", "compose/index.html", fileserver))
}
r.HandleFunc("/*", serveIndex("webapp", "index.html", fileserver))
routes.Print(r)
go http.Serve(listener, r)
<-ctx.Done()
}
}