server/frontend/save.go

82 lines
1.9 KiB
Go

package main
import (
"io/ioutil"
"log"
"net/http"
"os"
"path"
)
func saveTeamFile(dirname string, team string, filename string, w http.ResponseWriter, r *http.Request) bool {
if _, err := os.Stat(path.Join(dirname, team)); os.IsNotExist(err) || len(team) < 1 || team[0] == '_' {
http.Error(w, "{\"errmsg\":\"Requête invalide.\"}", http.StatusBadRequest)
return false
} else {
if len(filename) <= 0 {
log.Println("EMPTY $EXERCICE RECEIVED:", filename)
http.Error(w, "{\"errmsg\":\"Internal server error. Please retry in few seconds.\"}", http.StatusInternalServerError)
return false
}
// Previous submission not treated
if _, err := os.Stat(path.Join(SubmissionDir, team, filename)); !os.IsNotExist(err) {
http.Error(w, "{\"errmsg\":\"Du calme ! une requête est déjà en cours de traitement.\"}", http.StatusPaymentRequired)
return false
}
if err := saveFile(path.Join(SubmissionDir, team), filename, r); err != nil {
log.Println("Unable to handle submission file:", err)
http.Error(w, "{\"errmsg\":\"Internal server error. Please retry in few seconds.\"}", http.StatusInternalServerError)
return false
}
return true
}
}
func saveFile(dirname string, filename string, r *http.Request) error {
if _, err := os.Stat(dirname); os.IsNotExist(err) {
if err := os.MkdirAll(dirname, 0777); err != nil {
return err
}
}
var f *os.File
if filename == "" {
if fd, err := ioutil.TempFile(dirname, ""); err != nil {
return err
} else {
defer f.Close()
f = fd
}
} else {
if fd, err := os.Create(path.Join(dirname, filename)); err != nil {
return err
} else {
defer f.Close()
f = fd
}
}
// Read request body
var body []byte
if r.ContentLength > 0 {
tmp := make([]byte, 1024)
for {
n, err := r.Body.Read(tmp)
for j := 0; j < n; j++ {
body = append(body, tmp[j])
}
if err != nil || n <= 0 {
break
}
}
}
f.Write(body)
return nil
}