package shell import ( "github.com/b3log/wide/conf" "github.com/b3log/wide/session" "github.com/golang/glog" "github.com/gorilla/websocket" "net/http" "os" "os/exec" "strings" ) var shellWS = map[string]*websocket.Conn{} func WSHandler(w http.ResponseWriter, r *http.Request) { session, _ := session.Store.Get(r, "wide-session") 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(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(commands ...*exec.Cmd) string { for i, command := range commands[:len(commands)-1] { setCmdEnv(command) out, err := command.StdoutPipe() if nil != err { return err.Error() } command.Start() commands[i+1].Stdin = out } last := commands[len(commands)-1] setCmdEnv(last) out, err := last.Output() if err != nil { return err.Error() } return string(out) } func setCmdEnv(cmd *exec.Cmd) { // TODO: 使用用户自己的仓库路径设置 GOPATH cmd.Env = append(cmd.Env, "TERM=xterm", "GOPATH="+conf.Wide.Repos, "GOROOT="+os.Getenv("GOROOT")) cmd.Dir = conf.Wide.Repos }