forked from Mirrors/go-iap
119 lines
2.6 KiB
Go
119 lines
2.6 KiB
Go
package appstore
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"strconv"
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"strings"
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"time"
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"github.com/parnurzeal/gorequest"
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)
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const (
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sandboxURL string = "https://sandbox.itunes.apple.com/verifyReceipt"
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productionURL string = "https://buy.itunes.apple.com/verifyReceipt"
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)
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// Config is a configuration to initialize client
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type Config struct {
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IsProduction bool
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TimeOut time.Duration
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}
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// IAPClient is an interface to call validation API in App Store
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type IAPClient interface {
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Verify(IAPRequest) (IAPResponse, error)
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}
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// Client implements IAPClient
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type Client struct {
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URL string
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TimeOut time.Duration
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}
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// HandleError returns error message by status code
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func HandleError(status int) error {
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var message string
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switch status {
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case 0:
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return nil
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case 21000:
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message = "The App Store could not read the JSON object you provided."
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case 21002:
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message = "The data in the receipt-data property was malformed or missing."
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case 21003:
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message = "The receipt could not be authenticated."
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case 21005:
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message = "The receipt server is not currently available."
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case 21007:
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message = "This receipt is from the test environment, but it was sent to the production environment for verification. Send it to the test environment instead."
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case 21008:
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message = "This receipt is from the production environment, but it was sent to the test environment for verification. Send it to the production environment instead."
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default:
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message = "An unknown error ocurred"
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}
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return errors.New(message)
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}
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// New creates a client object
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func New() Client {
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client := Client{
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URL: sandboxURL,
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TimeOut: time.Second * 5,
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}
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if os.Getenv("IAP_ENVIRONMENT") == "production" {
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client.URL = productionURL
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}
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return client
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}
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// NewWithConfig creates a client with configuration
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func NewWithConfig(config Config) Client {
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if config.TimeOut == 0 {
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config.TimeOut = time.Second * 5
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}
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client := Client{
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URL: sandboxURL,
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TimeOut: config.TimeOut,
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}
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if config.IsProduction {
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client.URL = productionURL
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}
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return client
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}
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// Verify sends receipts and gets validation result
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func (c *Client) Verify(req *IAPRequest) (IAPResponse, error) {
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result := IAPResponse{}
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res, body, errs := gorequest.New().
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Post(c.URL).
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Send(req).
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Timeout(c.TimeOut).
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End()
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if errs != nil {
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return result, fmt.Errorf("%v", errs)
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}
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if res.StatusCode < 200 || res.StatusCode >= 300 {
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return result, errors.New("An error occurred in IAP - code:" + strconv.Itoa(res.StatusCode))
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}
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err := json.NewDecoder(strings.NewReader(body)).Decode(&result)
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return result, err
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}
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