// Get a file that is part of a module
func getModuleFile(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
vars := mux.Vars(r)
// Get module object
accKey, _, err := model.GetAccountByDevname(c, vars["devname"])
if err != nil {
common.ServeError(c, w, err)
return
}
if accKey == nil {
common.Serve404(w)
return
}
key := datastore.NewKey(c, "module", vars["name"], 0, accKey)
var e model.Module
err = datastore.Get(c, key, &e)
if err != nil {
if err == datastore.ErrNoSuchEntity {
common.Serve404(w)
return
}
common.ServeError(c, w, err)
return
}
// Find blob key
filename := vars["filename"]
for i := range e.Files {
if e.Files[i].Filename == filename {
blobstore.Send(w, appengine.BlobKey(e.Files[i].BlobKey))
return
}
}
common.Serve404(w)
}
// Get details about a module
func getModule(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
vars := mux.Vars(r)
accKey, _, err := model.GetAccountByDevname(c, vars["devname"])
if err != nil {
if err == datastore.ErrNoSuchEntity {
common.Serve404(w)
return
}
common.ServeError(c, w, err)
return
}
key := datastore.NewKey(c, "module", vars["name"], 0, accKey)
var e model.Module
err = datastore.Get(c, key, &e)
if err != nil {
if err == datastore.ErrNoSuchEntity {
common.Serve404(w)
return
}
common.ServeError(c, w, err)
return
}
res := map[string]interface{}{
"Owner": key.Parent().StringID(),
"Devname": e.Devname,
"Name": e.Name,
"Date": e.Date,
"Files": e.Files,
}
common.WriteJson(c, w, res)
}
// Upload a file to a module
func uploadModuleFile(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
vars := mux.Vars(r)
u := user.Current(c)
// Check if user is logged in
if u == nil {
common.Serve401(w)
return
}
accKey, _, err := model.GetAccountByDevname(c, vars["devname"])
if err != nil {
if err == datastore.ErrNoSuchEntity {
common.Serve404(w)
return
}
common.ServeError(c, w, err)
return
}
key := datastore.NewKey(c, "module", vars["name"], 0, accKey)
// Check if user is the owner
if key.Parent().StringID() != u.ID {
common.Serve403(w)
return
}
// Start a datastore transaction
var e model.Module
err = datastore.RunInTransaction(c, func(c appengine.Context) error {
// Get the visualization object
err := datastore.Get(c, key, &e)
if err != nil {
return err
}
if vars["action"] == "delete" {
e.Files, err = deleteFile(c, r, e.Files)
if err != nil {
return err
}
} else {
e.Files, err = uploadFile(c, r, e.Files)
if err != nil {
return err
}
}
// Save the visualization object
key, err = datastore.Put(c, key, &e)
return err
}, nil)
if err != nil {
if err == datastore.ErrNoSuchEntity {
common.Serve404(w)
return
}
common.ServeError(c, w, err)
return
}
res := map[string]interface{}{
"Owner": key.Parent().StringID(),
"Devname": e.Devname,
"Name": e.Name,
"Date": e.Date,
"Files": e.Files,
}
common.WriteJson(c, w, res)
}
