Created
May 6, 2011 22:42
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compile server
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| // licensed under GPLv3, copyright 2011 aph | |
| package main | |
| import ( | |
| "log" | |
| "io" | |
| "io/ioutil" | |
| "http" | |
| "strings" | |
| "os" | |
| "json" | |
| ) | |
| type DriverResult struct { | |
| Success bool | |
| Result string | |
| } | |
| func RunDriver(driver, source string) DriverResult { | |
| inR, inW, inE := os.Pipe() | |
| outR, outW, outE := os.Pipe() | |
| if inE != nil { | |
| return DriverResult{false, "internal error: " + inE.String()} | |
| } | |
| if outE != nil { | |
| return DriverResult{false, "internal error: " + outE.String()} | |
| } | |
| defer inR.Close() | |
| defer inW.Close() | |
| defer outR.Close() | |
| defer outW.Close() | |
| zooRoot := "/home/ashley/zoo/compd/" | |
| argv := []string{"dash", "../drivers/"+driver} | |
| envv := []string{"ZOO_ROOT="+zooRoot} | |
| fds := []*os.File{inR, outW, outW} | |
| prog := zooRoot + "/dash/bin/dash" | |
| dir := zooRoot + "/scratch/" | |
| child, err := os.StartProcess(prog, argv, envv, dir, fds) | |
| if err != nil { | |
| return DriverResult{false, "internal error: " + err.String()} | |
| } | |
| log.Println("driver: "+driver) | |
| io.WriteString(inW, source) | |
| inW.Close() | |
| child.Wait(0) | |
| outW.Close() | |
| result, _ := ioutil.ReadAll(outR) | |
| return DriverResult{true, string(result)} | |
| } | |
| func CompileServer(w http.ResponseWriter, req *http.Request) { | |
| driver := req.FormValue("driver") | |
| source := req.FormValue("source") | |
| ok := true | |
| if strings.Contains(driver, "/") { | |
| ok = false | |
| } | |
| if ok { | |
| dr := RunDriver(driver, source) | |
| bytes, _ := json.Marshal(dr) | |
| w.Write(bytes) | |
| } else { | |
| w.WriteHeader(500) | |
| } | |
| } | |
| func main() { | |
| http.HandleFunc("/", CompileServer) | |
| err := http.ListenAndServe(":7777", nil) | |
| if err != nil { | |
| log.Fatal("ListenAndServe: ", err.String()) | |
| } | |
| } |
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