/* Copyright (c) 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.appsimobile.appsii.iab;
import android.content.Context;
import android.os.Bundle;
import android.os.RemoteException;
import android.text.TextUtils;
import org.json.JSONException;
import java.util.ArrayList;
import java.util.List;
/**
* A simplified IabHelper that gives only access to the inventory requests
*/
public class IabInventoryHelper extends BaseIabHelper {
/**
* Creates an instance. After creation, it will not yet be ready to use. You must perform
* setup by calling {@link #startSetup} and wait for setup to complete. This constructor does
* not
* block and is safe to call from a UI thread.
*
* @param ctx Your application or Activity context. Needed to bind to the in-app billing
* service.
*/
public IabInventoryHelper(Context ctx) {
super(ctx);
}
public Inventory queryInventory(boolean querySkuDetails, List<String> moreSkus)
throws IabException {
return queryInventory(querySkuDetails, moreSkus, null);
}
/**
* 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.
*
* @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 {
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, moreSubsSkus);
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);
}
}
private 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 = mService.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(mSignatureBase64, 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<>();
skuList.addAll(inv.getAllOwnedSkus(itemType));
if (moreSkus != null) skuList.addAll(moreSkus);
if (skuList.size() == 0) {
logDebug("queryPrices: nothing to do because there are no SKUs.");
return BILLING_RESPONSE_RESULT_OK;
}
Bundle querySkus = new Bundle();
querySkus.putStringArrayList(GET_SKU_DETAILS_ITEM_LIST, skuList);
Bundle skuDetails = mService.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);
int N = responseList.size();
for (int i = 0; i < N; i++) {
String thisResponse = responseList.get(i);
SkuDetails d = new SkuDetails(itemType, thisResponse);
logDebug("Got sku details: " + d);
inv.addSkuDetails(d);
}
return BILLING_RESPONSE_RESULT_OK;
}
}