// PostSubmission creates a new submission.
func PostSubmission(ctx context.Context, w http.ResponseWriter, r *http.Request) (status int, err error) {
if r.Method != "POST" {
return http.StatusMethodNotAllowed, nil
}
p, ok := passenger.FromContext(ctx)
if !ok {
return http.StatusUnauthorized, nil
}
mediaType, _, err := mime.ParseMediaType(r.Header.Get("Content-Type"))
if err != nil {
return http.StatusBadRequest, err
}
if !strings.HasPrefix(mediaType, "multipart/") {
return http.StatusUnsupportedMediaType, nil
}
resultKey, err := datastore.DecodeKey(mux.Vars(r)["resultKey"])
if err != nil {
return http.StatusNotFound, err
}
if !util.HasParent(p.User, resultKey) {
return http.StatusBadRequest, errors.New("cannot submit answer for other users")
}
taskKey, err := datastore.DecodeKey(mux.Vars(r)["taskKey"])
if err != nil {
return http.StatusNotFound, err
}
if err := r.ParseMultipartForm(16 << 20); err != nil {
return http.StatusBadRequest, err
}
files, ok := r.MultipartForm.File["files"]
if !ok {
return http.StatusBadRequest, errors.New("missing files")
}
var task model.Task
if err = datastore.Get(ctx, taskKey, &task); err != nil {
return http.StatusNotFound, err
}
// Furthermore, the name of the GCS object is derived from the of the
// encapsulating Submission. To avoid race conditions, allocate an ID.
low, _, err := datastore.AllocateIDs(ctx, model.SubmissionKind, resultKey, 1)
if err != nil {
return http.StatusInternalServerError, err
}
submissionKey := datastore.NewKey(ctx, model.SubmissionKind, "", low, resultKey)
storedCode := model.StoredObject{
Bucket: util.SubmissionBucket(),
Name: nameObject(submissionKey) + "/Code/",
}
submission := model.Submission{
Task: taskKey,
Time: time.Now(),
Language: detectLanguage(files),
Code: storedCode,
}
if _, err = datastore.Put(ctx, submissionKey, &submission); err != nil {
return http.StatusInternalServerError, err
}
var tests model.Tests
testKeys, err := model.NewQueryForTest().
Ancestor(taskKey).
GetAll(ctx, &tests)
if err != nil {
return http.StatusInternalServerError, err
}
prrs, pwrs := multiPipe(len(tests))
go maketar(pwrs, files)
for i, t := range tests {
go func(i int, t model.Test) {
if err := test.Tester(t.Tester).Call(ctx, *t.Key(testKeys[i]), *submission.Key(submissionKey), prrs[i]); err != nil {
log.Warningf(ctx, "%s", err)
}
}(i, t)
}
if err := upload(util.CloudContext(ctx), storedCode.Bucket, storedCode.Name, files); err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
// PostSubmission creates a new submission.
func PostSubmission(ctx context.Context, w http.ResponseWriter, r *http.Request) (status int, err error) {
if r.Method != "POST" {
return http.StatusMethodNotAllowed, nil
}
var body = struct {
Code string
Language string
}{}
if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
return http.StatusBadRequest, err
}
p, ok := passenger.FromContext(ctx)
if !ok {
return http.StatusUnauthorized, nil
}
resultKey, err := datastore.DecodeKey(mux.Vars(r)["resultKey"])
if err != nil {
return http.StatusNotFound, err
}
if !util.HasParent(p.User, resultKey) {
return http.StatusBadRequest, errors.New("cannot submit answer for other users")
}
taskKey, err := datastore.DecodeKey(mux.Vars(r)["taskKey"])
if err != nil {
return http.StatusNotFound, err
}
var task model.Task
if err = datastore.Get(ctx, taskKey, &task); err != nil {
return http.StatusInternalServerError, err
}
// Furthermore, the name of the GCS object is derived from the of the
// encapsulating Submission. To avoid race conditions, allocate an ID.
low, _, err := datastore.AllocateIDs(ctx, model.SubmissionKind, resultKey, 1)
if err != nil {
return http.StatusInternalServerError, err
}
submissionKey := datastore.NewKey(ctx, model.SubmissionKind, "", low, resultKey)
submission := model.Submission{
Task: taskKey,
Time: time.Now(),
}
if body.Code != "" {
submission.Code, err = store(ctx, submissionKey, body.Code, body.Language)
if err != nil {
return http.StatusInternalServerError, err
}
submission.Language = body.Language
}
// Set the submission in stone.
if _, err = datastore.Put(ctx, submissionKey, &submission); err != nil {
return http.StatusInternalServerError, err
}
var tests model.Tests
_, err = model.NewQueryForTest().
Ancestor(taskKey).
GetAll(ctx, &tests)
if err != nil {
return http.StatusInternalServerError, err
}
for _, t := range tests {
if err := test.Tester(t.Tester).Call(ctx, t.Params, *submission.Key(submissionKey)); err != nil {
log.Warningf(ctx, "%s", err)
continue
}
}
// TODO(flowlo): Return something meaningful.
return http.StatusOK, nil
}