SimpleCloudNotifier/scnserver/google/androidPublisher.go

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package google
import (
scn "blackforestbytes.com/simplecloudnotifier"
"context"
"encoding/json"
"errors"
"fmt"
"github.com/rs/zerolog/log"
"io"
"net/http"
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"strings"
"time"
)
// https://developers.google.com/android-publisher/api-ref/rest/v3/purchases.products/get
// https://developers.google.com/android-publisher/api-ref/rest/v3/purchases.products#ProductPurchase
type AndroidPublisher struct {
client http.Client
auth *GoogleOAuth2
baseURL string
}
func NewAndroidPublisherAPI(conf scn.Config) (AndroidPublisherClient, error) {
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pkey := strings.ReplaceAll(conf.GoogleAPIPrivateKey, "\\n", "\n")
googauth, err := NewAuth(conf.GoogleAPITokenURI, conf.GoogleAPIPrivKeyID, conf.GoogleAPIClientMail, pkey)
if err != nil {
return nil, err
}
return &AndroidPublisher{
client: http.Client{Timeout: 5 * time.Second},
auth: googauth,
baseURL: "https://androidpublisher.googleapis.com/androidpublisher",
}, nil
}
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type PurchaseType int //@enum:type
const (
PurchaseTypeTest PurchaseType = 0 // i.e. purchased from a license testing account
PurchaseTypePromo PurchaseType = 1 // i.e. purchased using a promo code
PurchaseTypeRewarded PurchaseType = 2 // i.e. from watching a video ad instead of paying
)
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type ConsumptionState int //@enum:type
const (
ConsumptionStateYetToBeConsumed ConsumptionState = 0
ConsumptionStateConsumed ConsumptionState = 1
)
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type PurchaseState int //@enum:type
const (
PurchaseStatePurchased PurchaseState = 0
PurchaseStateCanceled PurchaseState = 1
PurchaseStatePending PurchaseState = 2
)
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type AcknowledgementState int //@enum:type
const (
AcknowledgementStateYetToBeAcknowledged AcknowledgementState = 0
AcknowledgementStateAcknowledged AcknowledgementState = 1
)
type ProductPurchase struct {
Kind string `json:"kind"`
PurchaseTimeMillis string `json:"purchaseTimeMillis"`
PurchaseState *PurchaseState `json:"purchaseState"`
ConsumptionState ConsumptionState `json:"consumptionState"`
DeveloperPayload string `json:"developerPayload"`
OrderId string `json:"orderId"`
PurchaseType *PurchaseType `json:"purchaseType"`
AcknowledgementState AcknowledgementState `json:"acknowledgementState"`
PurchaseToken *string `json:"purchaseToken"`
ProductId *string `json:"productId"`
Quantity *int `json:"quantity"`
ObfuscatedExternalAccountId string `json:"obfuscatedExternalAccountId"`
ObfuscatedExternalProfileId string `json:"obfuscatedExternalProfileId"`
RegionCode string `json:"regionCode"`
}
type apiError struct {
Code int `json:"code"`
Message string `json:"message"`
}
func (ap AndroidPublisher) GetProductPurchase(ctx context.Context, packageName string, productId string, token string) (*ProductPurchase, error) {
uri := fmt.Sprintf("%s/v3/applications/%s/purchases/products/%s/tokens/%s", ap.baseURL, packageName, productId, token)
request, err := http.NewRequestWithContext(ctx, "GET", uri, nil)
if err != nil {
return nil, err
}
tok, err := ap.auth.Token(ctx)
if err != nil {
log.Err(err).Msg("Refreshing FB token failed")
return nil, err
}
request.Header.Set("Authorization", "Bearer "+tok)
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Accept", "application/json")
response, err := ap.client.Do(request)
if err != nil {
return nil, err
}
defer func() { _ = response.Body.Close() }()
respBodyBin, err := io.ReadAll(response.Body)
if err != nil {
return nil, err
}
if response.StatusCode == 400 {
var errBody struct {
Error apiError `json:"error"`
}
if err := json.Unmarshal(respBodyBin, &errBody); err != nil {
return nil, err
}
if errBody.Error.Code == 400 {
return nil, nil // probably token not found
}
}
if response.StatusCode < 200 || response.StatusCode >= 300 {
if bstr, err := io.ReadAll(response.Body); err == nil {
return nil, errors.New(fmt.Sprintf("GetProducts-Request returned %d: %s", response.StatusCode, string(bstr)))
} else {
return nil, errors.New(fmt.Sprintf("GetProducts-Request returned %d", response.StatusCode))
}
}
var respBody ProductPurchase
if err := json.Unmarshal(respBodyBin, &respBody); err != nil {
return nil, err
}
if respBody.Kind != "androidpublisher#productPurchase" {
return nil, errors.New(fmt.Sprintf("Invalid ProductPurchase.kind: '%s'", respBody.Kind))
}
return &respBody, nil
}