示例#1
0
文件: cmd_buy.go 项目: niemeyer/snapd
func buySnap(opts *store.BuyOptions) error {
	cli := Client()

	if !cli.LoggedIn() {
		return fmt.Errorf(i18n.G("You need to be logged in to purchase software. Please run 'snap login' and try again."))
	}

	if strings.ContainsAny(opts.SnapName, ":*") {
		return fmt.Errorf(i18n.G("cannot buy snap %q: invalid characters in name"), opts.SnapName)
	}

	snap, resultInfo, err := cli.FindOne(opts.SnapName)
	if err != nil {
		return err
	}

	opts.SnapID = snap.ID
	if opts.Currency == "" {
		opts.Currency = resultInfo.SuggestedCurrency
	}

	opts.Price, opts.Currency, err = getPrice(snap.Prices, opts.Currency)
	if err != nil {
		return fmt.Errorf(i18n.G("cannot buy snap %q: %v"), opts.SnapName, err)
	}

	if snap.Status == "available" {
		return fmt.Errorf(i18n.G("cannot buy snap %q: it has already been bought"), opts.SnapName)
	}

	err = cli.ReadyToBuy()
	if err != nil {
		if e, ok := err.(*client.Error); ok {
			switch e.Kind {
			case client.ErrorKindNoPaymentMethods:
				return fmt.Errorf(i18n.G(`You do not have a payment method associated with your account, visit https://my.ubuntu.com/payment/edit to add one.
Once completed, return here and run 'snap buy %s' again.`), snap.Name)
			case client.ErrorKindTermsNotAccepted:
				return fmt.Errorf(i18n.G(`Please visit https://my.ubuntu.com/terms to agree to the latest terms and conditions.
Once completed, return here and run 'snap buy %s' again.`), snap.Name)
			}
		}
		return err
	}

	// TRANSLATORS: %q, %q and %s are the snap name, developer, and price. Please wrap the translation at 80 characters.
	fmt.Fprintf(Stdout, i18n.G(`Please re-enter your Ubuntu One password to purchase %q from %q
for %s. Press ctrl-c to cancel.`), snap.Name, snap.Developer, formatPrice(opts.Price, opts.Currency))
	fmt.Fprint(Stdout, "\n")

	err = requestLogin("")
	if err != nil {
		return err
	}

	_, err = cli.Buy(opts)
	if err != nil {
		if e, ok := err.(*client.Error); ok {
			switch e.Kind {
			case client.ErrorKindPaymentDeclined:
				return fmt.Errorf(i18n.G(`Sorry, your payment method has been declined by the issuer. Please review your
payment details at https://my.ubuntu.com/payment/edit and try again.`))
			}
		}
		return err
	}

	// TRANSLATORS: %q and %s are the same snap name. Please wrap the translation at 80 characters.
	fmt.Fprintf(Stdout, i18n.G(`Thanks for purchasing %q. You may now install it on any of your devices
with 'snap install %s'.`), opts.SnapName, opts.SnapName)
	fmt.Fprint(Stdout, "\n")

	return nil
}
示例#2
0
func buySnap(opts *store.BuyOptions) error {
	cli := Client()

	if !cli.LoggedIn() {
		return fmt.Errorf(i18n.G("You need to be logged in to purchase software. Please run 'snap login' and try again."))
	}

	if strings.ContainsAny(opts.SnapName, ":*") {
		return fmt.Errorf(i18n.G("cannot buy snap %q: invalid characters in name"), opts.SnapName)
	}

	snap, resultInfo, err := cli.FindOne(opts.SnapName)
	if err != nil {
		return err
	}

	opts.SnapID = snap.ID
	if opts.Currency == "" {
		opts.Currency = resultInfo.SuggestedCurrency
	}

	opts.Price, opts.Currency, err = getPrice(snap.Prices, opts.Currency)
	if err != nil {
		return fmt.Errorf(i18n.G("cannot buy snap %q: %v"), opts.SnapName, err)
	}

	if snap.Status == "available" {
		return fmt.Errorf(i18n.G("cannot buy snap %q: it has already been bought"), opts.SnapName)
	}

	// TODO Change to use the new /buy/ready endpoint instead of checking payment methods
	paymentInfo, err := cli.PaymentMethods()
	if err != nil {
		return err
	}

	var methods []*store.PaymentMethod
	for _, method := range paymentInfo.Methods {
		if !method.RequiresInteraction {
			methods = append(methods, method)
		}
	}

	if len(methods) == 0 {
		return fmt.Errorf(i18n.G("cannot buy snap %q: no payment methods registered"), opts.SnapName)
	}

	reader := bufio.NewReader(nil)
	reader.Reset(Stdin)

	// Unless the user has enabled automatic payments, we must prompt for a payment method.
	if !paymentInfo.AllowsAutomaticPayment {
		w := tabwriter.NewWriter(Stdout, 0, 3, 2, ' ', 0)

		index := -1

		fmt.Fprintln(w, i18n.G("\tSelection\tDescription"))
		for i, method := range methods {
			preferred := ""
			if method.Preferred {
				preferred = "*"
				index = i + 1
			}
			fmt.Fprintf(w, "%s\t%d\t%s\n", preferred, i+1, method.Description)
		}
		w.Flush()

		if index > 0 {
			// If the user has a preferred payment method
			fmt.Fprintf(Stdout, i18n.G("Press <enter> to use your default[*], or type a number to select payment method: "))
		} else {
			fmt.Fprintf(Stdout, i18n.G("Type a number to select payment method: "))
		}

		response, _, err := reader.ReadLine()
		if err != nil {
			return err
		}

		stringResponse := string(response)

		if !(stringResponse == "" && index > 0) {
			// If the user answered and also has no preferred method, we need to parse the response.
			index, err = strconv.Atoi(stringResponse)
			if err != nil {
				return fmt.Errorf(i18n.G("cannot buy snap %q: invalid payment method selection %q"), snap.Name, stringResponse)
			}

			if index <= 0 || index > len(methods) {
				return fmt.Errorf(i18n.G("cannot buy snap %q: unknown payment method selection %d"), snap.Name, index)
			}
		}

		// Convert the payment selection to a zero-index
		paymentMethod := methods[index-1]
		opts.BackendID = paymentMethod.BackendID
		opts.MethodID = paymentMethod.ID
	}

	fmt.Fprintf(Stdout, i18n.G("Do you want to buy %q from %q for %s? (Y/n): "), snap.Name,
		snap.Developer, formatPrice(opts.Price, opts.Currency))

	response, _, err := reader.ReadLine()
	if err != nil {
		return err
	}

	if !positiveResponse[strings.ToLower(string(response))] {
		return fmt.Errorf(i18n.G("aborting"))
	}

	result, err := cli.Buy(opts)
	if err != nil {
		return err
	}

	if result.State == "InProgress" {
		// TODO Support interactive purchases on the CLI
		return fmt.Errorf(i18n.G("cannot buy snap %q: the command line tools do not support interactive purchases"), snap.Name)
	}

	// TRANSLATORS: %s is a snap name
	fmt.Fprintf(Stdout, i18n.G("%s bought\n"), opts.SnapName)

	return nil
}