schnutibox/pkg/web/web.go

95 lines
2.4 KiB
Go

package web
import (
"context"
"fmt"
"html/template"
"net"
"net/http"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"go.xsfx.dev/logginghandler"
assets "go.xsfx.dev/schnutibox/assets/web"
"go.xsfx.dev/schnutibox/internal/config"
api "go.xsfx.dev/schnutibox/pkg/api/v1"
"go.xsfx.dev/schnutibox/pkg/sselog"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
)
func root(w http.ResponseWriter, r *http.Request) {
logger := logginghandler.Logger(r)
t, err := template.ParseFS(assets.Templates, "templates/index.html.tmpl")
if err != nil {
logger.Error().Err(err).Msg("could not parse template")
http.Error(w, "could not parse template", http.StatusInternalServerError)
return
}
if err := t.Execute(w, struct{}{}); err != nil {
logger.Error().Err(err).Msg("could not execute template")
http.Error(w, "could not execute template", http.StatusInternalServerError)
return
}
}
func gw(conn string) *runtime.ServeMux {
ctx := context.Background()
gopts := []grpc.DialOption{grpc.WithInsecure()}
s := grpc.NewServer()
api.RegisterIdentifierServer(s, api.Server{})
reflection.Register(s)
lis, err := net.Listen("tcp", conn)
if err != nil {
log.Fatal().Err(err).Msg("could not listen")
}
log.Info().Msgf("serving GRPC on %s...", conn)
go func() {
log.Fatal().Err(s.Serve(lis))
}()
gwmux := runtime.NewServeMux()
if err := api.RegisterIdentifierHandlerFromEndpoint(ctx, gwmux, conn, gopts); err != nil {
log.Fatal().Err(err).Msg("could not register grpc endpoint")
}
return gwmux
}
func Run(command *cobra.Command, args []string) {
// Create host string for serving web.
lh := fmt.Sprintf("%s:%d", config.Cfg.Box.Hostname, config.Cfg.Box.Port)
lg := fmt.Sprintf("%s:%d", config.Cfg.Box.Hostname, config.Cfg.Box.Grpc)
// GRPC.
// Define http handlers.
mux := http.NewServeMux()
mux.Handle("/", logginghandler.Handler(http.HandlerFunc(root)))
mux.Handle("/log", logginghandler.Handler(http.HandlerFunc(sselog.LogHandler)))
mux.Handle(
"/static/",
logginghandler.Handler(
http.StripPrefix("/static/", http.FileServer(http.FS(assets.Files))),
),
)
mux.Handle("/metrics", promhttp.Handler())
mux.Handle("/api/", http.StripPrefix("/api", gw(lg)))
// Serving http.
log.Info().Msgf("serving HTTP on %s...", lh)
log.Fatal().Err(http.ListenAndServe(lh, logginghandler.Handler(mux))).Msg("goodbye")
}