104 lines
2.1 KiB
Go
104 lines
2.1 KiB
Go
package shell
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import (
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"github.com/b3log/wide/conf"
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"github.com/b3log/wide/session"
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"github.com/golang/glog"
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"github.com/gorilla/websocket"
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"net/http"
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"os"
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"os/exec"
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"strings"
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)
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var shellWS = map[string]*websocket.Conn{}
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func WSHandler(w http.ResponseWriter, r *http.Request) {
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session, _ := session.Store.Get(r, "wide-session")
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sid := session.Values["id"].(string)
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shellWS[sid], _ = websocket.Upgrade(w, r, nil, 1024, 1024)
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ret := map[string]interface{}{"output": "Shell initialized", "cmd": "init-shell"}
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shellWS[sid].WriteJSON(&ret)
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glog.Infof("Open a new [Shell] with session [%s], %d", sid, len(shellWS))
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input := map[string]interface{}{}
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for {
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if err := shellWS[sid].ReadJSON(&input); err != nil {
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if err.Error() == "EOF" {
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return
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}
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if err.Error() == "unexpected EOF" {
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return
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}
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glog.Error("Shell WS ERROR: " + err.Error())
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return
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}
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inputCmd := input["cmd"].(string)
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cmds := strings.Split(inputCmd, "|")
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commands := []*exec.Cmd{}
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for _, cmdWithArgs := range cmds {
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cmdWithArgs = strings.TrimSpace(cmdWithArgs)
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cmdWithArgs := strings.Split(cmdWithArgs, " ")
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args := []string{}
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if len(cmdWithArgs) > 1 {
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args = cmdWithArgs[1:]
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}
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cmd := exec.Command(cmdWithArgs[0], args...)
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commands = append(commands, cmd)
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}
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output := ""
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if !strings.Contains(inputCmd, "clear") {
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output = pipeCommands(commands...)
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}
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ret = map[string]interface{}{"output": output, "cmd": "shell-output"}
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if err := shellWS[sid].WriteJSON(&ret); err != nil {
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glog.Error("Shell WS ERROR: " + err.Error())
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return
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}
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}
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}
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func pipeCommands(commands ...*exec.Cmd) string {
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for i, command := range commands[:len(commands)-1] {
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setCmdEnv(command)
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out, err := command.StdoutPipe()
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if nil != err {
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return err.Error()
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}
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command.Start()
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commands[i+1].Stdin = out
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}
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last := commands[len(commands)-1]
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setCmdEnv(last)
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out, err := last.Output()
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if err != nil {
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return err.Error()
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}
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return string(out)
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}
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func setCmdEnv(cmd *exec.Cmd) {
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cmd.Env = append(cmd.Env, "TERM=xterm", "GOPATH="+conf.Wide.GOPATH,
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"GOROOT="+os.Getenv("GOROOT"))
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cmd.Dir = conf.Wide.GOPATH
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}
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