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package main
import (
"fmt"
"log"
"net/http"
"net/url"
"path/filepath"
"strings"
"github.com/spf13/afero"
)
type wfmRequest struct {
fs afero.Fs
w http.ResponseWriter
userName string
remAddr string
rwAccess bool
modern bool
eSort string // escaped sort order
uDir string // unescaped directory name
uFbn string // unescaped file base name
}
func wfmMain(w http.ResponseWriter, r *http.Request) {
r.ParseMultipartForm(10 << 20)
uName, uAccess := auth(w, r)
if uName == "" {
return
}
go log.Printf("req from=%q user=%q uri=%q form=%v", r.RemoteAddr, uName, r.RequestURI, noText(r.Form))
wfm := &wfmRequest{
userName: uName,
rwAccess: uAccess,
remAddr: r.RemoteAddr,
w: w,
eSort: r.FormValue("sort"),
modern: strings.HasPrefix(r.UserAgent(), "Mozilla/5"),
fs: wfmFs, // TODO(tenox): per user FS/homedir
uFbn: filepath.Base(r.FormValue("file")),
uDir: filepath.Clean(r.FormValue("dir")),
}
// directory can come either from form value or URI Path
if wfm.uDir == "" || wfm.uDir == "." {
// TODO(tenox): use url.Parse() instead
u, _ := url.PathUnescape(r.URL.Path)
wfm.uDir = filepath.Clean("/" + strings.TrimPrefix(u, wfmPfx))
}
if wfm.uDir == "" || wfm.uDir == "." {
wfm.uDir = "/"
}
// button clicked
switch {
case r.FormValue("mkd") != "":
wfm.prompt("mkdir", nil)
return
case r.FormValue("mkf") != "":
wfm.prompt("mkfile", nil)
return
case r.FormValue("mkb") != "":
wfm.prompt("mkurl", nil)
return
case r.FormValue("mdelp") != "":
wfm.prompt("multi_delete", r.Form["mulf"])
return
case r.FormValue("mmovp") != "":
wfm.prompt("multi_move", r.Form["mulf"])
return
case r.FormValue("upload") != "":
f, h, err := r.FormFile("filename")
if err != nil {
htErr(w, "upload", err)
return
}
wfm.uploadFile(h, f)
return
case r.FormValue("save") != "":
wfm.saveText(r.FormValue("text"))
return
case r.FormValue("up") != "":
up, err := url.JoinPath(wfmPfx, filepath.Dir(wfm.uDir))
if err != nil {
htErr(w, "up path build", err)
return
}
if wfm.eSort != "" {
up += "?sort=" + wfm.eSort
}
redirect(w, up)
return
case r.FormValue("refresh") != "":
re, err := url.JoinPath(wfmPfx, wfm.uDir)
if err != nil {
htErr(w, "up path build", err)
return
}
if wfm.eSort != "" {
re += "?sort=" + wfm.eSort
}
redirect(w, re)
return
case r.FormValue("home") != "":
wfm.uDir = "/"
wfm.listFiles(filepath.Base(r.FormValue("hi")))
return
case r.FormValue("cancel") != "":
wfm.listFiles(filepath.Base(r.FormValue("hi")))
return
}
// form action submitted
switch r.FormValue("fn") {
case "disp":
wfm.dispFile()
case "down":
wfm.downFile()
case "edit":
wfm.editText()
case "mkdir":
wfm.mkdir()
case "mkfile":
wfm.mkfile()
case "mkurl":
wfm.mkurl(r.FormValue("url"))
case "rename":
wfm.renFile(r.FormValue("dst"))
case "renp":
wfm.prompt("rename", nil)
case "movp":
wfm.prompt("move", nil)
case "delp":
wfm.prompt("delete", nil)
case "move":
wfm.moveFiles([]string{wfm.uFbn}, r.FormValue("dst"))
case "delete":
wfm.deleteFiles([]string{wfm.uFbn})
case "multi_delete":
wfm.deleteFiles(r.Form["mulf"])
case "multi_move":
wfm.moveFiles(r.Form["mulf"], r.FormValue("dst"))
case "logout":
logout(w)
case "about":
wfm.about(r.UserAgent())
default:
wfm.dispOrDir(filepath.Base(r.FormValue("hi")))
}
}
func dispFavIcon(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "image/x-icon")
w.Write(favIcn)
}
func dispRobots(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, "User-agent: *")
if *robots {
fmt.Fprintln(w, "Allow: /")
return
}
fmt.Fprintln(w, "Disallow: /")
}
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