Play Integrity API 无法完成，使用 Firebase App Check 时出现错误 403

Question

我正在尝试将应用程序检查用于我的云功能。按照文档操作后，我仍然无法使其正常工作。这是我从应用程序初始化应用程序检查的代码、函数代码本身以及调用函数的代码。最后，我将添加我所做的其他非代码事情的屏幕截图

初始化应用程序检查（在主活动中）

FirebaseApp.initializeApp(this)
        Firebase.appCheck.installAppCheckProviderFactory(
            PlayIntegrityAppCheckProviderFactory.getInstance(),
        )

在 logcat 中我发现了这个：

Error getting App Check token; using placeholder token instead. Error: com.google.firebase.FirebaseException: Error returned from API. code: 403 body: App attestation failed.

Python云运行函数代码 我假设我需要做的就是添加强制应用程序检查行。

from firebase_functions import https_fn
from google.auth import default
from googleapiclient.discovery import build
from firebase_admin import initialize_app

# Initialize the Firebase Admin SDK
initialize_app()


@https_fn.on_call(
    enforce_app_check = True
)
def verify_purchase(req: https_fn.CallableRequest) -> dict:
    """Callable Cloud Function to verify Android subscription purchases."""
    print("Request: ", req)
    try:
        # Use Application Default Credentials (ADC)
        credentials, _ = default(scopes=['https://www.googleapis.com/auth/androidpublisher'])
        androidpublisher = build('androidpublisher', 'v3', credentials=credentials)
    except Exception as e:
        raise https_fn.HttpsError(
            code=https_fn.FunctionsErrorCode.INTERNAL,
            message="Failed to initialize credentials or service",
            details=str(e)
        )

    # Extracting request data
    purchase_token = req.data.get('token')
    print("Purchase Token: ", purchase_token)
    subscription_id = req.data.get('subscription_id')
    print("Subscription ID: ", subscription_id)
    package_name = "" #Ive added this in my real code

    if not purchase_token:
        raise https_fn.HttpsError(
            code=https_fn.FunctionsErrorCode.INVALID_ARGUMENT,
            message="Token is required"
        )

    if not subscription_id:
        raise https_fn.HttpsError(
            code=https_fn.FunctionsErrorCode.INVALID_ARGUMENT,
            message="Subscription ID is required"
        )

    try:
        subscription = androidpublisher.purchases().subscriptions().get(
            packageName=package_name,
            subscriptionId=subscription_id,
            token=purchase_token
        ).execute()

        return {"data": subscription}
    except Exception as e:
        raise https_fn.HttpsError(
            code=https_fn.FunctionsErrorCode.UNKNOWN,
            message="Error verifying subscription",
            details=str(e)
        )

从App调用函数

private fun verifyPurchaseWithFirebase(purchaseToken: String, subscriptionId: String) {
        val data = hashMapOf(
            "token" to purchaseToken,
            "subscription_id" to subscriptionId
        )

        Log.d(TAG, "Verifying purchase with token: $purchaseToken")
        Log.d(TAG, "Data to send to Firebase: $data")

        functions
            .getHttpsCallable("verify_purchase")
            .call(data)
            .addOnCompleteListener { task ->
                if (task.isSuccessful) {
                    Log.d(TAG, "Purchase verified successfully with Firebase")
                    val result = task.result?.data as? Map<String, Any>
                    if (result != null) {
                        updateUserSubscriptionStatus(result)
                    } else {
                        Log.e(TAG, "No data received from Firebase function")
                    }
                } else {
                    Log.e(TAG, "Failed to verify purchase with Firebase", task.exception)
                }
            }
    }

使用 256 SHA 指纹在 Firebase 上设置应用程序检查。 认证提供商：Play Integrity，状态：已注册 启用 Play Integrity API，错误率为 100%。 启用 Play Integrity API 我觉得奇怪的一件事......在我的游戏控制台上，它说我的集成才刚刚开始，尚未完成。我的云项目也已经链接了，我尝试过解除链接和重新链接都没有用，也等了半天。 集成 Integrity API 已启动

如果我遗漏了什么，请告诉我，谢谢。

Answer 1

基本上我没有添加这一行

实现“com.google.android.play:integrity:1.4.0”

进入我的 build.gradle 文件。它在文档中提到了这一点，我想我只是忽略了它。