118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"flag"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"os/signal"
|
|
"path"
|
|
"path/filepath"
|
|
"strings"
|
|
"syscall"
|
|
|
|
"srs.epita.fr/fic-server/dashboard/api"
|
|
"srs.epita.fr/fic-server/libfic"
|
|
"srs.epita.fr/fic-server/settings"
|
|
)
|
|
|
|
var StaticDir string
|
|
var TeamsDir string
|
|
|
|
type ResponseWriterPrefix struct {
|
|
real http.ResponseWriter
|
|
prefix string
|
|
}
|
|
|
|
func (r ResponseWriterPrefix) Header() http.Header {
|
|
return r.real.Header()
|
|
}
|
|
|
|
func (r ResponseWriterPrefix) WriteHeader(s int) {
|
|
if v, exists := r.real.Header()["Location"]; exists {
|
|
r.real.Header().Set("Location", r.prefix+v[0])
|
|
}
|
|
r.real.WriteHeader(s)
|
|
}
|
|
|
|
func (r ResponseWriterPrefix) Write(z []byte) (int, error) {
|
|
return r.real.Write(z)
|
|
}
|
|
|
|
func StripPrefix(prefix string, h http.Handler) http.Handler {
|
|
if prefix == "" {
|
|
return h
|
|
}
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if prefix != "/" && r.URL.Path == "/" {
|
|
http.Redirect(w, r, prefix+"/", http.StatusFound)
|
|
} else if p := strings.TrimPrefix(r.URL.Path, prefix); len(p) < len(r.URL.Path) {
|
|
r2 := new(http.Request)
|
|
*r2 = *r
|
|
r2.URL = new(url.URL)
|
|
*r2.URL = *r.URL
|
|
r2.URL.Path = p
|
|
h.ServeHTTP(ResponseWriterPrefix{w, prefix}, r2)
|
|
} else {
|
|
h.ServeHTTP(w, r)
|
|
}
|
|
})
|
|
}
|
|
|
|
func main() {
|
|
// Read parameters from command line
|
|
var bind = flag.String("bind", "127.0.0.1:8082", "Bind port/socket")
|
|
var baseURL = flag.String("baseurl", "/", "URL prepended to each URL")
|
|
flag.StringVar(&StaticDir, "static", "./htdocs-dashboard/", "Directory containing static files")
|
|
flag.StringVar(&TeamsDir, "teams", "./TEAMS", "Base directory where save teams JSON files")
|
|
flag.StringVar(&settings.SettingsDir, "settings", settings.SettingsDir, "Base directory where load and save settings")
|
|
flag.Parse()
|
|
|
|
log.SetPrefix("[public] ")
|
|
|
|
// Sanitize options
|
|
var err error
|
|
log.Println("Checking paths...")
|
|
if StaticDir, err = filepath.Abs(StaticDir); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
if fic.FilesDir, err = filepath.Abs(fic.FilesDir); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
if settings.SettingsDir, err = filepath.Abs(settings.SettingsDir); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
if *baseURL != "/" {
|
|
tmp := path.Clean(*baseURL)
|
|
baseURL = &tmp
|
|
} else {
|
|
tmp := ""
|
|
baseURL = &tmp
|
|
}
|
|
|
|
// Prepare graceful shutdown
|
|
interrupt := make(chan os.Signal, 1)
|
|
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
|
|
|
|
srv := &http.Server{
|
|
Addr: *bind,
|
|
Handler: StripPrefix(*baseURL, api.Router()),
|
|
}
|
|
|
|
// Serve content
|
|
go func() {
|
|
log.Fatal(srv.ListenAndServe())
|
|
}()
|
|
log.Println(fmt.Sprintf("Ready, listening on %s", *bind))
|
|
|
|
// Wait shutdown signal
|
|
<-interrupt
|
|
|
|
log.Print("The service is shutting down...")
|
|
srv.Shutdown(context.Background())
|
|
log.Println("done")
|
|
}
|