Java tutorial
package com.cdvdev.subscriptiondemo.helpers; import android.app.Activity; import android.app.AlertDialog; import android.app.PendingIntent; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.IntentSender; import android.content.ServiceConnection; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.RemoteException; import android.text.TextUtils; import android.util.Log; import com.android.vending.billing.IInAppBillingService; import com.cdvdev.subscriptiondemo.BuildConfig; import com.cdvdev.subscriptiondemo.utils.iab.IabException; import com.cdvdev.subscriptiondemo.utils.iab.IabResult; import com.cdvdev.subscriptiondemo.utils.iab.Inventory; import com.cdvdev.subscriptiondemo.utils.iab.Purchase; import com.cdvdev.subscriptiondemo.utils.iab.Security; import com.cdvdev.subscriptiondemo.utils.iab.SkuDetails; import org.json.JSONException; import java.util.ArrayList; import java.util.List; /** * Class for work with google In-app billing * * @author Dmitriy V. Chernysh (dmitriy.chernysh@gmail.com) * Created on 01.02.16. */ public class IabHelper { private static final String LOG_TAG = "IAB"; // Purchase types public static final String ITEM_TYPE_INAPP = "inapp"; public static final String ITEM_TYPE_SUBS = "subs"; // Billing response codes public static final int BILLING_RESPONSE_RESULT_OK = 0; public static final int BILLING_RESPONSE_RESULT_BILLING_UNAVAILABLE = 3; // IAB Helper error codes public static final int IABHELPER_ERROR_BASE = -1000; public static final int IABHELPER_REMOTE_EXCEPTION = -1001; public static final int IABHELPER_BAD_RESPONSE = -1002; public static final int IABHELPER_VERIFICATION_FAILED = -1003; public static final int IABHELPER_SEND_INTENT_FAILED = -1004; public static final int IABHELPER_USER_CANCELLED = -1005; public static final int IABHELPER_UNKNOWN_PURCHASE_RESPONSE = -1006; public static final int IABHELPER_MISSING_TOKEN = -1007; public static final int IABHELPER_UNKNOWN_ERROR = -1008; public static final int IABHELPER_SUBSCRIPTIONS_NOT_AVAILABLE = -1009; public static final int IABHELPER_INVALID_CONSUMPTION = -1010; public static final int IABHELPER_SUBSCRIPTION_UPDATE_NOT_AVAILABLE = -1011; // Keys for the responses from InAppBillingService public static final String RESPONSE_CODE = "RESPONSE_CODE"; public static final String RESPONSE_GET_SKU_DETAILS_LIST = "DETAILS_LIST"; public static final String RESPONSE_BUY_INTENT = "BUY_INTENT"; public static final String RESPONSE_INAPP_PURCHASE_DATA = "INAPP_PURCHASE_DATA"; public static final String RESPONSE_INAPP_SIGNATURE = "INAPP_DATA_SIGNATURE"; public static final String RESPONSE_INAPP_ITEM_LIST = "INAPP_PURCHASE_ITEM_LIST"; public static final String RESPONSE_INAPP_PURCHASE_DATA_LIST = "INAPP_PURCHASE_DATA_LIST"; public static final String RESPONSE_INAPP_SIGNATURE_LIST = "INAPP_DATA_SIGNATURE_LIST"; public static final String INAPP_CONTINUATION_TOKEN = "INAPP_CONTINUATION_TOKEN"; // some fields on the getSkuDetails response bundle public static final String GET_SKU_DETAILS_ITEM_LIST = "ITEM_ID_LIST"; Context mContext; String mLicenseKey; boolean mSetupDone = false; boolean mDisposed = false; ServiceConnection mServiceConnection; IInAppBillingService mIInAppBillingService; // The request code used to launch purchase flow int mRequestCode; // The item type of the current purchase flow String mPurchasingItemType; // Are subscriptions supported? boolean mSubscriptionsSupported = false; // Is subscription update supported? boolean mSubscriptionUpdateSupported = false; // Is an asynchronous operation in progress? // (only one at a time can be in progress) boolean mAsyncInProgress = false; // (for logging/debugging) // if mAsyncInProgress == true, what asynchronous operation is in progress? String mAsyncOperation = ""; // The listener registered on launchPurchaseFlow, which we have to call back when // the purchase finishes OnIabPurchaseFinishedListener mPurchaseListener; public IabHelper(Context context, String base64LicenseKey) { mContext = context; mLicenseKey = base64LicenseKey; } /** * Callback when the setup process is complete. */ public interface OnIabSetupFinishListener { void onIabSetupFinished(IabResult result); } /** * Callback that notifies when a purchase is finished. */ public interface OnIabPurchaseFinishedListener { void onIabPurchaseFinished(IabResult result, Purchase info); } /** * Listener that notifies when an inventory query operation completes. */ public interface QueryInventoryFinishedListener { void onQueryInventoryFinished(IabResult result, Inventory inv); } /** * Setup in-app billing */ public void startSetup(final OnIabSetupFinishListener finishListener) { logDebug("Starting in-app billing setup."); checkNotDisposed(); // If already set up, can't do it again. if (mSetupDone) throw new IllegalStateException("IAB helper is already set up."); // Binding to IInAppBillingService mServiceConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { if (mDisposed) return; logDebug("Billing service connected."); mIInAppBillingService = IInAppBillingService.Stub.asInterface(service); String packageName = mContext.getPackageName(); try { logDebug("Checking for in-app billing 3 support."); //check for in-app billing v3 support int response = mIInAppBillingService.isBillingSupported(3, packageName, ITEM_TYPE_INAPP); if (response != BILLING_RESPONSE_RESULT_OK) { if (finishListener != null) { finishListener.onIabSetupFinished( new IabResult(response, "Error checking for billing v3 support.")); } // if in-app purchases aren't supported, neither are subscriptions mSubscriptionsSupported = false; mSubscriptionUpdateSupported = false; return; } else { logDebug("In-app billing version 3 supported for " + packageName); } // Check for v5 subscriptions support. This is needed for // getBuyIntentToReplaceSku which allows for subscription update response = mIInAppBillingService.isBillingSupported(5, packageName, ITEM_TYPE_SUBS); if (response == BILLING_RESPONSE_RESULT_OK) { logDebug("Subscription re-signup AVAILABLE."); mSubscriptionUpdateSupported = true; } else { logDebug("Subscription re-signup not available."); mSubscriptionUpdateSupported = false; } if (mSubscriptionUpdateSupported) { mSubscriptionsSupported = true; } else { // check for v3 subscriptions support response = mIInAppBillingService.isBillingSupported(3, packageName, ITEM_TYPE_SUBS); if (response == BILLING_RESPONSE_RESULT_OK) { logDebug("Subscriptions AVAILABLE."); mSubscriptionsSupported = true; } else { logDebug("Subscriptions NOT AVAILABLE. Response: " + response); mSubscriptionsSupported = false; mSubscriptionUpdateSupported = false; } } mSetupDone = true; } catch (RemoteException e) { if (finishListener != null) { finishListener.onIabSetupFinished(new IabResult(IABHELPER_REMOTE_EXCEPTION, "RemoteException while setting up in-app billing.")); } e.printStackTrace(); return; } if (finishListener != null) { finishListener .onIabSetupFinished(new IabResult(BILLING_RESPONSE_RESULT_OK, "Setup successful.")); } } @Override public void onServiceDisconnected(ComponentName name) { logDebug("Billing service disconnected."); mIInAppBillingService = null; } }; //create service Intent serviceIntent = new Intent("com.android.vending.billing.InAppBillingService.BIND"); serviceIntent.setPackage("com.android.vending"); if (!mContext.getPackageManager().queryIntentServices(serviceIntent, 0).isEmpty()) { mContext.bindService(serviceIntent, mServiceConnection, Context.BIND_AUTO_CREATE); } else { // no service available to handle that Intent if (finishListener != null) { finishListener.onIabSetupFinished(new IabResult(BILLING_RESPONSE_RESULT_BILLING_UNAVAILABLE, "Billing service unavailable on device.")); } } } /** * Dispose of object, releasing resources. It's very important to call this * method when you are done with this object. It will release any resources * used by it such as service connections. Naturally, once the object is * disposed of, it can't be used again. */ public void dispose() { logDebug("Disposing."); mSetupDone = false; if (mServiceConnection != null) { logDebug("Unbinding from service."); if (mContext != null) mContext.unbindService(mServiceConnection); } mDisposed = true; mContext = null; mServiceConnection = null; mIInAppBillingService = null; mPurchaseListener = null; } private void checkNotDisposed() { if (mDisposed) throw new IllegalStateException("IabHelper was disposed of, so it cannot be used."); } /** * Checks that setup was done; if not, throws an exception. */ void checkSetupDone(String operation) { if (!mSetupDone) { logError("Illegal state for operation (" + operation + "): IAB helper is not set up."); throw new IllegalStateException("IAB helper is not set up. Can't perform operation: " + operation); } } /** * Check that subscriptions are supported. */ public boolean isSubscriptionsSupported() { checkNotDisposed(); return mSubscriptionsSupported; } // Workaround to bug where sometimes response codes come as Long instead of Integer int getResponseCodeFromBundle(Bundle b) { Object o = b.get(RESPONSE_CODE); if (o == null) { logDebug("Bundle with null response code, assuming OK (known issue)"); return BILLING_RESPONSE_RESULT_OK; } else if (o instanceof Integer) return ((Integer) o).intValue(); else if (o instanceof Long) return (int) ((Long) o).longValue(); else { logError("Unexpected type for bundle response code."); logError(o.getClass().getName()); throw new RuntimeException("Unexpected type for bundle response code: " + o.getClass().getName()); } } /** * Returns a human-readable description for the given response code. * * @param code The response code * @return A human-readable string explaining the result code. * It also includes the result code numerically. */ public static String getResponseDesc(int code) { String[] iab_msgs = ("0:OK/1:User Canceled/2:Unknown/" + "3:Billing Unavailable/4:Item unavailable/" + "5:Developer Error/6:Error/7:Item Already Owned/" + "8:Item not owned").split("/"); String[] iabhelper_msgs = ("0:OK/-1001:Remote exception during initialization/" + "-1002:Bad response received/" + "-1003:Purchase signature verification failed/" + "-1004:Send intent failed/" + "-1005:User cancelled/" + "-1006:Unknown purchase response/" + "-1007:Missing token/" + "-1008:Unknown error/" + "-1009:Subscriptions not available/" + "-1010:Invalid consumption attempt").split("/"); if (code <= IABHELPER_ERROR_BASE) { int index = IABHELPER_ERROR_BASE - code; if (index >= 0 && index < iabhelper_msgs.length) return iabhelper_msgs[index]; else return String.valueOf(code) + ":Unknown IAB Helper Error"; } else if (code < 0 || code >= iab_msgs.length) return String.valueOf(code) + ":Unknown"; else return iab_msgs[code]; } /** * Method for showing errors * * @param message - Error message */ public void showAlertDialog(String message) { AlertDialog.Builder builder = new AlertDialog.Builder(mContext); builder.setMessage(message).setNeutralButton(android.R.string.ok, null).create().show(); } void flagStartAsync(String operation) { if (mAsyncInProgress) throw new IllegalStateException("Can't start async operation (" + operation + ") because another async operation(" + mAsyncOperation + ") is in progress."); mAsyncOperation = operation; mAsyncInProgress = true; logDebug("Starting async operation: " + operation); } void flagEndAsync() { logDebug("Ending async operation: " + mAsyncOperation); mAsyncOperation = ""; mAsyncInProgress = false; } /** * Handles an activity result that's part of the purchase flow in in-app billing. If you * are calling {@link #launchPurchaseFlow}, then you must call this method from your * Activity's {@link android.app.Activity@onActivityResult} method. This method * MUST be called from the UI thread of the Activity. * * @param requestCode The requestCode as you received it. * @param resultCode The resultCode as you received it. * @param data The data (Intent) as you received it. * @return Returns true if the result was related to a purchase flow and was handled; * false if the result was not related to a purchase, in which case you should * handle it normally. */ public boolean handleActivityResult(int requestCode, int resultCode, Intent data) { IabResult result; if (requestCode != mRequestCode) return false; checkNotDisposed(); checkSetupDone("handleActivityResult"); // end of async purchase operation that started on launchPurchaseFlow flagEndAsync(); if (data == null) { logError("Null data in IAB activity result."); result = new IabResult(IABHELPER_BAD_RESPONSE, "Null data in IAB result"); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null); return true; } int responseCode = getResponseCodeFromIntent(data); String purchaseData = data.getStringExtra(RESPONSE_INAPP_PURCHASE_DATA); String dataSignature = data.getStringExtra(RESPONSE_INAPP_SIGNATURE); if (resultCode == Activity.RESULT_OK && responseCode == BILLING_RESPONSE_RESULT_OK) { logDebug("Successful resultcode from purchase activity."); logDebug("Purchase data: " + purchaseData); logDebug("Data signature: " + dataSignature); logDebug("Extras: " + data.getExtras()); logDebug("Expected item type: " + mPurchasingItemType); if (purchaseData == null || dataSignature == null) { logError("BUG: either purchaseData or dataSignature is null."); logDebug("Extras: " + data.getExtras().toString()); result = new IabResult(IABHELPER_UNKNOWN_ERROR, "IAB returned null purchaseData or dataSignature"); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null); return true; } Purchase purchase = null; try { purchase = new Purchase(mPurchasingItemType, purchaseData, dataSignature); String sku = purchase.getSku(); // Verify signature if (!Security.verifyPurchase(mLicenseKey, purchaseData, dataSignature)) { logError("Purchase signature verification FAILED for sku " + sku); result = new IabResult(IABHELPER_VERIFICATION_FAILED, "Signature verification failed for sku " + sku); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, purchase); return true; } logDebug("Purchase signature successfully verified."); } catch (JSONException e) { logError("Failed to parse purchase data."); e.printStackTrace(); result = new IabResult(IABHELPER_BAD_RESPONSE, "Failed to parse purchase data."); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null); return true; } if (mPurchaseListener != null) { mPurchaseListener.onIabPurchaseFinished(new IabResult(BILLING_RESPONSE_RESULT_OK, "Success"), purchase); } } else if (resultCode == Activity.RESULT_OK) { // result code was OK, but in-app billing response was not OK. logDebug("Result code was OK but in-app billing response was not OK: " + getResponseDesc(responseCode)); if (mPurchaseListener != null) { result = new IabResult(responseCode, "Problem purchashing item."); mPurchaseListener.onIabPurchaseFinished(result, null); } } else if (resultCode == Activity.RESULT_CANCELED) { logDebug("Purchase canceled - Response: " + getResponseDesc(responseCode)); result = new IabResult(IABHELPER_USER_CANCELLED, "User canceled."); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null); } else { logError("Purchase failed. Result code: " + Integer.toString(resultCode) + ". Response: " + getResponseDesc(responseCode)); result = new IabResult(IABHELPER_UNKNOWN_PURCHASE_RESPONSE, "Unknown purchase response."); if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null); } return true; } /** * Initiate the UI flow for an in-app purchase. Call this method to initiate an in-app purchase, * which will involve bringing up the Google Play screen. The calling activity will be paused * while the user interacts with Google Play, and the result will be delivered via the * activity's {@link android.app.Activity#onActivityResult} method, at which point you must call * this object's {@link #handleActivityResult} method to continue the purchase flow. This method * MUST be called from the UI thread of the Activity. * * @param act The calling activity. * @param sku The sku of the item to purchase. * @param itemType indicates if it's a product or a subscription (ITEM_TYPE_INAPP or * ITEM_TYPE_SUBS) * @param oldSkus A list of SKUs which the new SKU is replacing or null if there are none * @param requestCode A request code (to differentiate from other responses -- as in * {@link android.app.Activity#startActivityForResult}). * @param listener The listener to notify when the purchase process finishes * @param extraData Extra data (developer payload), which will be returned with the purchase * data when the purchase completes. This extra data will be permanently bound to that * purchase and will always be returned when the purchase is queried. */ public void launchPurchaseFlow(Activity act, String sku, String itemType, List<String> oldSkus, int requestCode, OnIabPurchaseFinishedListener listener, String extraData) { checkNotDisposed(); checkSetupDone("launchPurchaseFlow"); flagStartAsync("launchPurchaseFlow"); IabResult result; if (itemType.equals(ITEM_TYPE_SUBS) && !mSubscriptionsSupported) { IabResult r = new IabResult(IABHELPER_SUBSCRIPTIONS_NOT_AVAILABLE, "Subscriptions are not available."); flagEndAsync(); if (listener != null) listener.onIabPurchaseFinished(r, null); return; } try { logDebug("Constructing buy intent for " + sku + ", item type: " + itemType); Bundle buyIntentBundle; if (oldSkus == null || oldSkus.isEmpty()) { // Purchasing a new item or subscription re-signup buyIntentBundle = mIInAppBillingService.getBuyIntent(3, mContext.getPackageName(), sku, itemType, extraData); } else { // Subscription upgrade/downgrade if (!mSubscriptionUpdateSupported) { IabResult r = new IabResult(IABHELPER_SUBSCRIPTION_UPDATE_NOT_AVAILABLE, "Subscription updates are not available."); flagEndAsync(); if (listener != null) listener.onIabPurchaseFinished(r, null); return; } buyIntentBundle = mIInAppBillingService.getBuyIntentToReplaceSkus(5, mContext.getPackageName(), oldSkus, sku, itemType, extraData); } int response = getResponseCodeFromBundle(buyIntentBundle); if (response != BILLING_RESPONSE_RESULT_OK) { logError("Unable to buy item, Error response: " + getResponseDesc(response)); flagEndAsync(); result = new IabResult(response, "Unable to buy item"); if (listener != null) listener.onIabPurchaseFinished(result, null); return; } PendingIntent pendingIntent = buyIntentBundle.getParcelable(RESPONSE_BUY_INTENT); logDebug("Launching buy intent for " + sku + ". Request code: " + requestCode); mRequestCode = requestCode; mPurchaseListener = listener; mPurchasingItemType = itemType; act.startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, new Intent(), Integer.valueOf(0), Integer.valueOf(0), Integer.valueOf(0)); } catch (IntentSender.SendIntentException e) { logError("SendIntentException while launching purchase flow for sku " + sku); e.printStackTrace(); flagEndAsync(); result = new IabResult(IABHELPER_SEND_INTENT_FAILED, "Failed to send intent."); if (listener != null) listener.onIabPurchaseFinished(result, null); } catch (RemoteException e) { logError("RemoteException while launching purchase flow for sku " + sku); e.printStackTrace(); flagEndAsync(); result = new IabResult(IABHELPER_REMOTE_EXCEPTION, "Remote exception while starting purchase flow"); if (listener != null) listener.onIabPurchaseFinished(result, null); } } /** * Asynchronous wrapper for inventory query. This will perform an inventory * query as described in {@link #queryInventory}, but will do so asynchronously * and call back the specified listener upon completion. This method is safe to * call from a UI thread. * * @param querySkuDetails as in {@link #queryInventory} * @param moreSkus as in {@link #queryInventory} * @param listener The listener to notify when the refresh operation completes. */ public void queryInventoryAsync(final boolean querySkuDetails, final List<String> moreSkus, final QueryInventoryFinishedListener listener) { final Handler handler = new Handler(); checkNotDisposed(); checkSetupDone("queryInventory"); flagStartAsync("refresh inventory"); (new Thread(new Runnable() { public void run() { IabResult result = new IabResult(BILLING_RESPONSE_RESULT_OK, "Inventory refresh successful."); Inventory inv = null; try { inv = queryInventory(querySkuDetails, moreSkus); } catch (IabException ex) { result = ex.getResult(); } flagEndAsync(); final IabResult result_f = result; final Inventory inv_f = inv; if (!mDisposed && listener != null) { handler.post(new Runnable() { public void run() { listener.onQueryInventoryFinished(result_f, inv_f); } }); } } })).start(); } public void queryInventoryAsync(QueryInventoryFinishedListener listener) { queryInventoryAsync(true, null, listener); } /** * Queries the inventory. This will query all owned items from the server, as well as * information on additional skus, if specified. This method may block or take long to execute. * Do not call from a UI thread. For that, use the non-blocking version {@link #queryInventoryAsync}. * * @param querySkuDetails if true, SKU details (price, description, etc) will be queried as well * as purchase information. * @param moreItemSkus additional PRODUCT skus to query information on, regardless of ownership. * Ignored if null or if querySkuDetails is false. * @param moreSubsSkus additional SUBSCRIPTIONS skus to query information on, regardless of ownership. * Ignored if null or if querySkuDetails is false. * @throws IabException if a problem occurs while refreshing the inventory. */ public Inventory queryInventory(boolean querySkuDetails, List<String> moreItemSkus, List<String> moreSubsSkus) throws IabException { checkNotDisposed(); checkSetupDone("queryInventory"); try { Inventory inv = new Inventory(); int r = queryPurchases(inv, ITEM_TYPE_INAPP); if (r != BILLING_RESPONSE_RESULT_OK) { throw new IabException(r, "Error refreshing inventory (querying owned items)."); } if (querySkuDetails) { r = querySkuDetails(ITEM_TYPE_INAPP, inv, moreItemSkus); if (r != BILLING_RESPONSE_RESULT_OK) { throw new IabException(r, "Error refreshing inventory (querying prices of items)."); } } // if subscriptions are supported, then also query for subscriptions if (mSubscriptionsSupported) { r = queryPurchases(inv, ITEM_TYPE_SUBS); if (r != BILLING_RESPONSE_RESULT_OK) { throw new IabException(r, "Error refreshing inventory (querying owned subscriptions)."); } if (querySkuDetails) { r = querySkuDetails(ITEM_TYPE_SUBS, inv, moreItemSkus); if (r != BILLING_RESPONSE_RESULT_OK) { throw new IabException(r, "Error refreshing inventory (querying prices of subscriptions)."); } } } return inv; } catch (RemoteException e) { throw new IabException(IABHELPER_REMOTE_EXCEPTION, "Remote exception while refreshing inventory.", e); } catch (JSONException e) { throw new IabException(IABHELPER_BAD_RESPONSE, "Error parsing JSON response while refreshing inventory.", e); } } public Inventory queryInventory(boolean querySkuDetails, List<String> moreSkus) throws IabException { return queryInventory(querySkuDetails, moreSkus, null); } int queryPurchases(Inventory inv, String itemType) throws JSONException, RemoteException { // Query purchases logDebug("Querying owned items, item type: " + itemType); logDebug("Package name: " + mContext.getPackageName()); boolean verificationFailed = false; String continueToken = null; do { logDebug("Calling getPurchases with continuation token: " + continueToken); Bundle ownedItems = mIInAppBillingService.getPurchases(3, mContext.getPackageName(), itemType, continueToken); int response = getResponseCodeFromBundle(ownedItems); logDebug("Owned items response: " + String.valueOf(response)); if (response != BILLING_RESPONSE_RESULT_OK) { logDebug("getPurchases() failed: " + getResponseDesc(response)); return response; } if (!ownedItems.containsKey(RESPONSE_INAPP_ITEM_LIST) || !ownedItems.containsKey(RESPONSE_INAPP_PURCHASE_DATA_LIST) || !ownedItems.containsKey(RESPONSE_INAPP_SIGNATURE_LIST)) { logError("Bundle returned from getPurchases() doesn't contain required fields."); return IABHELPER_BAD_RESPONSE; } ArrayList<String> ownedSkus = ownedItems.getStringArrayList(RESPONSE_INAPP_ITEM_LIST); ArrayList<String> purchaseDataList = ownedItems.getStringArrayList(RESPONSE_INAPP_PURCHASE_DATA_LIST); ArrayList<String> signatureList = ownedItems.getStringArrayList(RESPONSE_INAPP_SIGNATURE_LIST); for (int i = 0; i < purchaseDataList.size(); ++i) { String purchaseData = purchaseDataList.get(i); String signature = signatureList.get(i); String sku = ownedSkus.get(i); if (Security.verifyPurchase(mLicenseKey, purchaseData, signature)) { logDebug("Sku is owned: " + sku); Purchase purchase = new Purchase(itemType, purchaseData, signature); if (TextUtils.isEmpty(purchase.getToken())) { logWarn("BUG: empty/null token!"); logDebug("Purchase data: " + purchaseData); } // Record ownership and token inv.addPurchase(purchase); } else { logWarn("Purchase signature verification **FAILED**. Not adding item."); logDebug(" Purchase data: " + purchaseData); logDebug(" Signature: " + signature); verificationFailed = true; } } continueToken = ownedItems.getString(INAPP_CONTINUATION_TOKEN); logDebug("Continuation token: " + continueToken); } while (!TextUtils.isEmpty(continueToken)); return verificationFailed ? IABHELPER_VERIFICATION_FAILED : BILLING_RESPONSE_RESULT_OK; } int querySkuDetails(String itemType, Inventory inv, List<String> moreSkus) throws RemoteException, JSONException { logDebug("Querying SKU details."); ArrayList<String> skuList = new ArrayList<String>(); skuList.addAll(inv.getAllOwnedSkus(itemType)); if (moreSkus != null) { for (String sku : moreSkus) { if (!skuList.contains(sku)) { skuList.add(sku); } } } if (skuList.size() == 0) { logDebug("queryPrices: nothing to do because there are no SKUs."); return BILLING_RESPONSE_RESULT_OK; } // Split the sku list in blocks of no more than 20 elements. ArrayList<ArrayList<String>> packs = new ArrayList<ArrayList<String>>(); ArrayList<String> tempList; int n = skuList.size() / 20; int mod = skuList.size() % 20; for (int i = 0; i < n; i++) { tempList = new ArrayList<String>(); for (String s : skuList.subList(i * 20, i * 20 + 20)) { tempList.add(s); } packs.add(tempList); } if (mod != 0) { tempList = new ArrayList<String>(); for (String s : skuList.subList(n * 20, n * 20 + mod)) { tempList.add(s); } packs.add(tempList); } for (ArrayList<String> skuPartList : packs) { Bundle querySkus = new Bundle(); querySkus.putStringArrayList(GET_SKU_DETAILS_ITEM_LIST, skuPartList); Bundle skuDetails = mIInAppBillingService.getSkuDetails(3, mContext.getPackageName(), itemType, querySkus); if (!skuDetails.containsKey(RESPONSE_GET_SKU_DETAILS_LIST)) { int response = getResponseCodeFromBundle(skuDetails); if (response != BILLING_RESPONSE_RESULT_OK) { logDebug("getSkuDetails() failed: " + getResponseDesc(response)); return response; } else { logError("getSkuDetails() returned a bundle with neither an error nor a detail list."); return IABHELPER_BAD_RESPONSE; } } ArrayList<String> responseList = skuDetails.getStringArrayList(RESPONSE_GET_SKU_DETAILS_LIST); for (String thisResponse : responseList) { SkuDetails d = new SkuDetails(itemType, thisResponse); logDebug("Got sku details: " + d); inv.addSkuDetails(d); } } return BILLING_RESPONSE_RESULT_OK; } // Workaround to bug where sometimes response codes come as Long instead of Integer int getResponseCodeFromIntent(Intent i) { Object o = i.getExtras().get(RESPONSE_CODE); if (o == null) { logError("Intent with no response code, assuming OK (known issue)"); return BILLING_RESPONSE_RESULT_OK; } else if (o instanceof Integer) return ((Integer) o).intValue(); else if (o instanceof Long) return (int) ((Long) o).longValue(); else { logError("Unexpected type for intent response code."); logError(o.getClass().getName()); throw new RuntimeException("Unexpected type for intent response code: " + o.getClass().getName()); } } /** * Verifies the developer payload of a purchase. */ public boolean verifyDeveloperPayload(Purchase p) { String payload = p.getDeveloperPayload(); /* * TODO: verify that the developer payload of the purchase is correct. It will be * the same one that you sent when initiating the purchase. * * WARNING: Locally generating a random string when starting a purchase and * verifying it here might seem like a good approach, but this will fail in the * case where the user purchases an item on one device and then uses your app on * a different device, because on the other device you will not have access to the * random string you originally generated. * * So a good developer payload has these characteristics: * * 1. If two different users purchase an item, the payload is different between them, * so that one user's purchase can't be replayed to another user. * * 2. The payload must be such that you can verify it even when the app wasn't the * one who initiated the purchase flow (so that items purchased by the user on * one device work on other devices owned by the user). * * Using your own server to store and verify developer payloads across app * installations is recommended. */ return true; } public void logDebug(String msg) { if (BuildConfig.DEBUG) { Log.d(LOG_TAG, msg); } } void logError(String msg) { Log.e(LOG_TAG, "In-app billing error: " + msg); } void logWarn(String msg) { Log.w(LOG_TAG, "In-app billing warning: " + msg); } }