Exemplo n.º 1
0
// VisitFenceHandler handles POST /fences/{fenceId}/visit
func VisitFenceHandler(w http.ResponseWriter, r *http.Request) {
	user, err := auth.ValidateSession(r)

	if err != nil {
		http.Error(w, "Invalid Session token. "+err.Error(), http.StatusUnauthorized)
		return
	}

	vars := mux.Vars(r)

	fenceID, err := strconv.ParseUint(vars["fenceId"], 10, 8)
	if err != nil {
		http.Error(w, "Invalid Fence ID. "+err.Error(), http.StatusUnauthorized)
		return
	}

	fence, err, notFound := models.FindFenceByID(fenceID)

	if err != nil || notFound {
		http.Error(w, "Fence not Found", http.StatusNotFound)
		return
	}

	rent := scores.GetGeoFenceRent(fence)

	if user.Balance < rent {
		rent = user.Balance
	}

	// GCM
	err = jobs.QueueSendGcmRequest(gcm.NewMessage(
		map[string]interface{}{"type": "onForeignFenceEntered", "fenceId": fence.ID, "fenceName": fence.Name, "ownerName": fence.User.Name}, user.GCMNotificationID))

	if err != nil {
		InternalServerError(err, w)
		return
	}

	err = jobs.QueueSendGcmRequest(gcm.NewMessage(
		map[string]interface{}{"type": "onOwnFenceEntered", "fenceId": fence.ID, "fenceName": fence.Name, "visitorName": user.Name}, fence.User.GCMNotificationID))

	if err != nil {
		InternalServerError(err, w)
		return
	}

	// Activity Stream
	err = activity.AddForeignVisitedActivity(user.ID, fence.User.Name, fence.User.ID, fence.Name, fence.ID, rent)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	err = activity.AddOwnFenceVisitedActivity(fence.User.ID, user.Name, user.ID, fence.Name, fence.ID, rent)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	// Balance Recording
	redis.AddBalanceRecord(redis.GetBalanceRecordName(user.ID, redis.BalanceNameExpenseRent), rent)
	redis.AddBalanceRecord(redis.GetBalanceRecordName(fence.User.ID, redis.BalanceNameEarningsRent), rent)

	// Score Calculation
	err = jobs.QueueRecordVisitRequest(fence.Lat, fence.Lon, time.Now()) //scores.RecordVisit(fence.Lat, fence.Lon)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	user.LastKnownGeoHash = geomodel.GeoCell(fence.Lat, fence.Lon, models.LastKnownGeoHashResolution)
	user.Balance = user.Balance - rent

	if user.Balance < 0 { // TODO: Decide what to do here.
		user.Balance = 0
	}

	user.ExpensesRentAllTime = user.ExpensesRentAllTime + rent

	err = user.Save()
	if err != nil {
		InternalServerError(err, w)
		return
	}

	fence.User.Balance = fence.User.Balance + rent
	fence.User.EarningsRentAllTime = user.ExpensesRentAllTime + rent

	err = fence.User.Save()

	if err != nil {
		InternalServerError(err, w)
		return
	}

	fence.TotalEarnings = fence.TotalEarnings + rent
	fence.TotalVisitors = fence.TotalVisitors + 1

	err = fence.Save()

	if err != nil {
		InternalServerError(err, w)
		return
	}

	w.Write([]byte("{}"))
}
Exemplo n.º 2
0
// CreateFenceHandler POST /fences
func CreateFenceHandler(w http.ResponseWriter, r *http.Request) {
	user, err := auth.ValidateSession(r)

	if err != nil {
		http.Error(w, "Invalid Session token. "+err.Error(), http.StatusUnauthorized)
		return
	}

	decoder := json.NewDecoder(r.Body)
	var requestFence fenceResponse
	err = decoder.Decode(&requestFence)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	indexRadius := sort.SearchInts(models.UpgradeTypesRadius[:], requestFence.Radius)
	if !(indexRadius < len(models.UpgradeTypesRadius) && models.UpgradeTypesRadius[indexRadius] == requestFence.Radius) {
		http.Error(w, "Invalid Radius", http.StatusExpectationFailed)
		return
	}

	indexRent := sort.SearchFloat64s(models.UpgradeTypesRent[:], float64(requestFence.RentMultiplier))
	if !(indexRent < len(models.UpgradeTypesRent) && models.UpgradeTypesRent[indexRent] == requestFence.RentMultiplier) {
		http.Error(w, "Invalid RentMultiplier", http.StatusExpectationFailed)
		return
	}

	if requestFence.TTL <= 0 || requestFence.TTL > models.FenceMaxTTL {
		http.Error(w, "Invalid TTL", http.StatusExpectationFailed)
		return
	}

	var f models.Fence

	f.Lat = requestFence.Lat
	f.Lon = requestFence.Lon
	f.Name = requestFence.Name
	f.Radius = requestFence.Radius
	f.RentMultiplier = requestFence.RentMultiplier
	f.TTL = requestFence.TTL
	f.DiesAt = time.Now().Add(time.Duration(f.TTL) * time.Second)
	f.UserID = user.ID

	overlap, err := checkFenceOverlap(&f)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	if overlap {
		http.Error(w, "Fence does overlap.", http.StatusBadRequest)
		return
	}

	price, err := scores.GetGeoFencePrice(f.Lat, f.Lon, f.TTL, f.RentMultiplier, indexRadius)
	if price > user.Balance {
		http.Error(w, "You do not have enough money for this thing.", http.StatusPaymentRequired)
		return
	}

	f.Cost = price

	user.LastKnownGeoHash = geomodel.GeoCell(requestFence.Lat, requestFence.Lon, models.LastKnownGeoHashResolution)
	user.Balance = user.Balance - price
	user.ExpensesGeoFenceAllTime = user.ExpensesGeoFenceAllTime + price

	err = user.Save()
	if err != nil {
		log.Errorf("Error while saving user: %v", err)
	}

	redis.AddBalanceRecord(redis.GetBalanceRecordName(user.ID, redis.BalanceNameExpenseGeoFence), price)

	f.User = *user

	err = f.Save()

	if err != nil {
		InternalServerError(err, w)
		return
	}

	err = search.IndexGeoFence(f)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	jobs.QueueNotifyUsersSyncRequest(f.Lat, f.Lon)
	jobs.QueueFenceExpireRequest(&f)

	bytes, err := json.Marshal(&f)

	if err != nil {
		InternalServerError(err, w)
		return
	}

	w.Write(bytes)
}