filebrowser/http/websockets.go
Henrique Dias 02fb011d25 feat: commands websocket working again
License: MIT
Signed-off-by: Henrique Dias <hacdias@gmail.com>
2019-01-01 12:36:52 +00:00

155 lines
2.9 KiB
Go

package http
import (
"bufio"
"encoding/json"
"io"
"net/http"
"os"
"os/exec"
"strings"
"github.com/filebrowser/filebrowser/search"
"github.com/spf13/afero"
"github.com/gorilla/websocket"
)
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
}
var (
cmdNotImplemented = []byte("Command not implemented.")
cmdNotAllowed = []byte("Command not allowed.")
)
func (e *Env) commandsHandler(w http.ResponseWriter, r *http.Request) {
user, ok := e.getUser(w, r)
if !ok {
return
}
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
httpErr(w, r, http.StatusInternalServerError, err)
return
}
defer conn.Close()
var command []string
for {
_, msg, err := conn.ReadMessage()
if err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
return
}
command = strings.Split(string(msg), " ")
if len(command) != 0 {
break
}
}
if !user.CanExecute(command[0]) {
err := conn.WriteMessage(websocket.TextMessage, cmdNotAllowed)
if err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
}
return
}
if _, err := exec.LookPath(command[0]); err != nil {
err := conn.WriteMessage(websocket.TextMessage, cmdNotImplemented)
if err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
}
return
}
path := strings.TrimPrefix(r.URL.Path, "/api/command")
dir := afero.FullBaseFsPath(user.Fs.(*afero.BasePathFs), path)
cmd := exec.Command(command[0], command[1:]...)
cmd.Dir = dir
stdout, err := cmd.StdoutPipe()
if err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
return
}
stderr, err := cmd.StderrPipe()
if err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
return
}
if err := cmd.Start(); err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
return
}
s := bufio.NewScanner(io.MultiReader(stdout, stderr))
for s.Scan() {
conn.WriteMessage(websocket.TextMessage, s.Bytes())
}
if err := cmd.Wait(); err != nil {
wsErr(conn, r, http.StatusInternalServerError, err)
}
}
func (e *Env) searchHandler(w http.ResponseWriter, r *http.Request) {
user, ok := e.getUser(w, r)
if !ok {
return
}
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
httpErr(w, r, http.StatusInternalServerError, err)
return
}
defer conn.Close()
var (
value string
message []byte
)
for {
_, message, err = conn.ReadMessage()
if err != nil {
httpErr(w, r, http.StatusInternalServerError, err)
return
}
if len(message) != 0 {
value = string(message)
break
}
}
scope := strings.TrimPrefix(r.URL.Path, "/api/search")
err = search.Search(user.Fs, scope, value, func(path string, f os.FileInfo) error {
if !user.IsAllowed(path) {
return nil
}
response, _ := json.Marshal(map[string]interface{}{
"dir": f.IsDir(),
"path": path,
})
return conn.WriteMessage(websocket.TextMessage, response)
})
if err != nil {
httpErr(w, r, http.StatusInternalServerError, err)
return
}
}