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dwelling-files/cmd/dwelling-files/main.go

112 lines
2.8 KiB
Go

package main
import (
dwhttp "dwelling-files/internal/http"
"dwelling-files/pkg/files"
"dwelling-files/web"
"dwelling-files/web/locales"
"flag"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"git.arav.su/Arav/httpr"
"github.com/invopop/ctxi18n"
)
var version string
var listenAddress *string = flag.String("listen", "/var/run/dwelling-files/sock", "listen address (ip:port|unix_path)")
var directoryPath *string = flag.String("path", "/srv/ftp", "path to file share")
var enableFileHandler *bool = flag.Bool("file-handling", false, "enable file handling if it is handled by something else (e.g. NGiNX)")
var showVersion *bool = flag.Bool("v", false, "show version")
func main() {
flag.Parse()
log.SetFlags(0)
if *showVersion {
fmt.Println("dwelling-files ver.", version, "\nCopyright (c) 2023,2024 Alexander \"Arav\" Andreev <me@arav.su>")
return
}
if err := ctxi18n.LoadWithDefault(locales.Content, "en"); err != nil {
log.Fatalln(err)
}
r := httpr.New()
r.Handler(http.MethodGet, "/", Index)
r.Handler(http.MethodGet, "/*filepath", Index)
r.ServeStatic("/assets/*filepath", web.Assets())
var fileServer http.Handler
if *enableFileHandler {
fileServer = http.FileServer(http.Dir(*directoryPath))
}
r.Handler(http.MethodGet, "/file/*filepath", func(w http.ResponseWriter, r *http.Request) {
if !*enableFileHandler {
http.Error(w, "File handling is turned off.", http.StatusServiceUnavailable)
return
}
r.URL.Path = httpr.Param(r, "filepath")
fileServer.ServeHTTP(w, r)
})
srv := dwhttp.NewHttpServer(I18nMiddleware(r))
if err := srv.Start(*listenAddress); err != nil {
log.Fatalln(err)
}
doneSignal := make(chan os.Signal, 1)
signal.Notify(doneSignal, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
<-doneSignal
if err := srv.Stop(); err != nil {
log.Fatalln(err)
}
}
func I18nMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
lang := "en"
if lq := r.URL.Query().Get("lang"); lq != "" {
lc := http.Cookie{Name: "lang", Value: lq, HttpOnly: false, MaxAge: 0}
http.SetCookie(w, &lc)
lang = lq
} else if l, err := r.Cookie("lang"); err == nil {
lang = l.Value
} else if al := r.Header.Get("Accept-Language"); al != "" {
lang = r.Header.Get("Accept-Language")
}
ctx, err := ctxi18n.WithLocale(r.Context(), lang)
if err != nil {
log.Println("i18nmw:", err)
}
next.ServeHTTP(w, r.WithContext(ctx))
})
}
func Index(w http.ResponseWriter, r *http.Request) {
path := "/" + httpr.Param(r, "filepath")
if path[len(path)-1] != '/' {
path += "/"
}
entries, stats, err := files.ScanDirectory(*directoryPath+path, path)
if err != nil {
log.Println("Error directory scan:", err)
http.Error(w, "Not found", http.StatusNotFound)
return
}
web.Index(files.CurrentPath(path), version, &stats, &entries, r).Render(r.Context(), w)
}