153 lines
3.2 KiB
Go
153 lines
3.2 KiB
Go
// Shell.
|
|
package shell
|
|
|
|
import (
|
|
"html/template"
|
|
"math/rand"
|
|
"net/http"
|
|
"os"
|
|
"os/exec"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/b3log/wide/conf"
|
|
"github.com/b3log/wide/i18n"
|
|
"github.com/b3log/wide/user"
|
|
"github.com/golang/glog"
|
|
"github.com/gorilla/websocket"
|
|
)
|
|
|
|
var shellWS = map[string]*websocket.Conn{}
|
|
|
|
func IndexHandler(w http.ResponseWriter, r *http.Request) {
|
|
i18n.Load()
|
|
|
|
model := map[string]interface{}{"Wide": conf.Wide, "i18n": i18n.GetLangs(r), "locale": i18n.GetLocale(r)}
|
|
|
|
session, _ := user.Session.Get(r, "wide-session")
|
|
|
|
if session.IsNew {
|
|
// TODO: 写死以 admin 作为用户登录
|
|
name := conf.Wide.Users[0].Name
|
|
|
|
session.Values["username"] = name
|
|
session.Values["id"] = strconv.Itoa(rand.Int())
|
|
// 一天过期
|
|
session.Options.MaxAge = 60 * 60 * 24
|
|
|
|
glog.Infof("Created a session [%s] for user [%s]", session.Values["id"].(string), name)
|
|
}
|
|
|
|
session.Save(r, w)
|
|
|
|
t, err := template.ParseFiles("view/shell.html")
|
|
|
|
if nil != err {
|
|
glog.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
t.Execute(w, model)
|
|
}
|
|
|
|
func WSHandler(w http.ResponseWriter, r *http.Request) {
|
|
session, _ := user.Session.Get(r, "wide-session")
|
|
username := session.Values["username"].(string)
|
|
sid := session.Values["id"].(string)
|
|
|
|
shellWS[sid], _ = websocket.Upgrade(w, r, nil, 1024, 1024)
|
|
|
|
ret := map[string]interface{}{"output": "Shell initialized", "cmd": "init-shell"}
|
|
shellWS[sid].WriteJSON(&ret)
|
|
|
|
glog.Infof("Open a new [Shell] with session [%s], %d", sid, len(shellWS))
|
|
|
|
input := map[string]interface{}{}
|
|
|
|
for {
|
|
if err := shellWS[sid].ReadJSON(&input); err != nil {
|
|
if err.Error() == "EOF" {
|
|
return
|
|
}
|
|
|
|
if err.Error() == "unexpected EOF" {
|
|
return
|
|
}
|
|
|
|
glog.Error("Shell WS ERROR: " + err.Error())
|
|
return
|
|
}
|
|
|
|
inputCmd := input["cmd"].(string)
|
|
|
|
cmds := strings.Split(inputCmd, "|")
|
|
commands := []*exec.Cmd{}
|
|
for _, cmdWithArgs := range cmds {
|
|
cmdWithArgs = strings.TrimSpace(cmdWithArgs)
|
|
cmdWithArgs := strings.Split(cmdWithArgs, " ")
|
|
args := []string{}
|
|
if len(cmdWithArgs) > 1 {
|
|
args = cmdWithArgs[1:]
|
|
}
|
|
|
|
cmd := exec.Command(cmdWithArgs[0], args...)
|
|
commands = append(commands, cmd)
|
|
}
|
|
|
|
output := ""
|
|
if !strings.Contains(inputCmd, "clear") {
|
|
output = pipeCommands(username, commands...)
|
|
}
|
|
|
|
ret = map[string]interface{}{"output": output, "cmd": "shell-output"}
|
|
|
|
if err := shellWS[sid].WriteJSON(&ret); err != nil {
|
|
glog.Error("Shell WS ERROR: " + err.Error())
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func pipeCommands(username string, commands ...*exec.Cmd) string {
|
|
for i, command := range commands[:len(commands)-1] {
|
|
setCmdEnv(command, username)
|
|
|
|
stdout, err := command.StdoutPipe()
|
|
if nil != err {
|
|
return err.Error()
|
|
}
|
|
|
|
command.Start()
|
|
|
|
commands[i+1].Stdin = stdout
|
|
}
|
|
|
|
last := commands[len(commands)-1]
|
|
setCmdEnv(last, username)
|
|
|
|
out, err := last.CombinedOutput()
|
|
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
|
|
return string(out)
|
|
}
|
|
|
|
func setCmdEnv(cmd *exec.Cmd, username string) {
|
|
userWorkspace := conf.Wide.GetUserWorkspace(username)
|
|
|
|
cmd.Env = append(cmd.Env,
|
|
"TERM="+os.Getenv("TERM"),
|
|
"GOPATH="+userWorkspace,
|
|
"GOOS="+runtime.GOOS,
|
|
"GOARCH="+runtime.GOARCH,
|
|
"GOROOT="+runtime.GOROOT(),
|
|
"PATH="+os.Getenv("PATH"))
|
|
|
|
cmd.Dir = userWorkspace
|
|
}
|