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add in-app billing donation stuff

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This commit is contained in:
Andrew Dolgov 2012-02-29 18:30:52 +03:00
parent 2464831938
commit 8e45b14c61
12 changed files with 1408 additions and 8 deletions
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7
AndroidManifest.xml
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@ -1,14 +1,15 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.fox.ttrss"
android:versionCode="64"
android:versionName="0.5.1" >
android:versionCode="66"
android:versionName="0.5.2" >
<uses-sdk android:minSdkVersion="7" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.android.vending.BILLING" />
<application
android:allowBackup="true"
@ -49,6 +50,8 @@
android:enabled="true"
android:name=".ImageCacheService" />
<service android:name="BillingService" />
<meta-data
android:name="com.google.android.backup.api_key"
android:value="AEdPqrEAAAAIwG6zsGB4qo6ZhjfwIJpm9WI7AqmWaoRXm6ZJnA" />

5
res/menu/main_menu.xml
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@ -136,6 +136,11 @@
android:showAsAction=""
android:title="@string/preferences"/>
<item
android:id="@+id/donate"
android:showAsAction=""
android:title="@string/donate"/>
<group android:id="@+id/menu_group_logged_out" >
<item

4
res/values/strings.xml
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@ -122,4 +122,8 @@
<string name="font_size_medium">Medium</string>
<string name="font_size_large">Large</string>
<string name="pref_font_size">Article text size</string>
<string name="donate">Donate</string>
<string name="dialog_close">Close</string>
<string name="donate_select">Please select the donation</string>
<string name="donate_do">Donate!</string>
</resources>

24
src/com/android/vending/billing/IMarketBillingService.aidl Normal file
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@ -0,0 +1,24 @@
/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.android.vending.billing;
import android.os.Bundle;
interface IMarketBillingService {
/** Given the arguments in bundle form, returns a bundle for results. */
Bundle sendBillingRequest(in Bundle bundle);
}

63
src/org/fox/ttrss/BillingConstants.java Normal file
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package org.fox.ttrss;
public class BillingConstants {
// The response codes for a request, defined by Android Market.
public enum ResponseCode {
RESULT_OK,
RESULT_USER_CANCELED,
RESULT_SERVICE_UNAVAILABLE,
RESULT_BILLING_UNAVAILABLE,
RESULT_ITEM_UNAVAILABLE,
RESULT_DEVELOPER_ERROR,
RESULT_ERROR;
// Converts from an ordinal value to the ResponseCode
public static ResponseCode valueOf(int index) {
ResponseCode[] values = ResponseCode.values();
if (index < 0 || index >= values.length) {
return RESULT_ERROR;
}
return values[index];
}
}
// The possible states of an in-app purchase, as defined by Android Market.
public enum PurchaseState {
// Responses to requestPurchase or restoreTransactions.
PURCHASED, // User was charged for the order.
CANCELED, // The charge failed on the server.
REFUNDED; // User received a refund for the order.
// Converts from an ordinal value to the PurchaseState
public static PurchaseState valueOf(int index) {
PurchaseState[] values = PurchaseState.values();
if (index < 0 || index >= values.length) {
return CANCELED;
}
return values[index];
}
}
// These are the names of the extras that are passed in an intent from
// Market to this application and cannot be changed.
public static final String NOTIFICATION_ID = "notification_id";
public static final String INAPP_SIGNED_DATA = "inapp_signed_data";
public static final String INAPP_SIGNATURE = "inapp_signature";
public static final String INAPP_REQUEST_ID = "request_id";
public static final String INAPP_RESPONSE_CODE = "response_code";
// Intent actions that we send from the BillingReceiver to the
// BillingService. Defined by this application.
public static final String ACTION_CONFIRM_NOTIFICATION = "com.example.dungeons.CONFIRM_NOTIFICATION";
public static final String ACTION_GET_PURCHASE_INFORMATION = "com.example.dungeons.GET_PURCHASE_INFORMATION";
public static final String ACTION_RESTORE_TRANSACTIONS = "com.example.dungeons.RESTORE_TRANSACTIONS";
// Intent actions that we receive in the BillingReceiver from Market.
// These are defined by Market and cannot be changed.
public static final String ACTION_NOTIFY = "com.android.vending.billing.IN_APP_NOTIFY";
public static final String ACTION_RESPONSE_CODE = "com.android.vending.billing.RESPONSE_CODE";
public static final String ACTION_PURCHASE_STATE_CHANGED = "com.android.vending.billing.PURCHASE_STATE_CHANGED";
}

267
src/org/fox/ttrss/BillingHelper.java Normal file
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package org.fox.ttrss;
import java.util.ArrayList;
import android.app.PendingIntent;
import android.app.PendingIntent.CanceledException;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.RemoteException;
import android.util.Log;
import com.android.vending.billing.IMarketBillingService;
import org.fox.ttrss.BillingSecurity.VerifiedPurchase;
import org.fox.ttrss.BillingConstants.ResponseCode;
public class BillingHelper {
private static final String TAG = "BillingService";
private static IMarketBillingService mService;
private static Context mContext;
private static Handler mCompletedHandler;
protected static VerifiedPurchase latestPurchase;
protected static void instantiateHelper(Context context, IMarketBillingService service) {
mService = service;
mContext = context;
}
protected static void setCompletedHandler(Handler handler){
mCompletedHandler = handler;
}
protected static boolean isBillingSupported() {
if (amIDead()) {
return false;
}
Bundle request = makeRequestBundle("CHECK_BILLING_SUPPORTED");
if (mService != null) {
try {
Bundle response = mService.sendBillingRequest(request);
ResponseCode code = ResponseCode.valueOf((Integer) response.get("RESPONSE_CODE"));
Log.i(TAG, "isBillingSupported response was: " + code.toString());
if (ResponseCode.RESULT_OK.equals(code)) {
return true;
} else {
return false;
}
} catch (RemoteException e) {
Log.e(TAG, "isBillingSupported response was: RemoteException", e);
return false;
}
} else {
Log.i(TAG, "isBillingSupported response was: BillingService.mService = null");
return false;
}
}
/**
* A REQUEST_PURCHASE request also triggers two asynchronous responses (broadcast intents).
* First, the Android Market application sends a RESPONSE_CODE broadcast intent, which provides error information about the request. (which I ignore)
* Next, if the request was successful, the Android Market application sends an IN_APP_NOTIFY broadcast intent.
* This message contains a notification ID, which you can use to retrieve the transaction details for the REQUEST_PURCHASE
* @param activityContext
* @param itemId
*/
protected static void requestPurchase(Context activityContext, String itemId){
if (amIDead()) {
return;
}
Log.i(TAG, "requestPurchase()");
Bundle request = makeRequestBundle("REQUEST_PURCHASE");
request.putString("ITEM_ID", itemId);
try {
Bundle response = mService.sendBillingRequest(request);
//The RESPONSE_CODE key provides you with the status of the request
Integer responseCodeIndex = (Integer) response.get("RESPONSE_CODE");
//The PURCHASE_INTENT key provides you with a PendingIntent, which you can use to launch the checkout UI
PendingIntent pendingIntent = (PendingIntent) response.get("PURCHASE_INTENT");
//The REQUEST_ID key provides you with a unique request identifier for the request
Long requestIndentifier = (Long) response.get("REQUEST_ID");
Log.i(TAG, "current request is:" + requestIndentifier);
BillingConstants.ResponseCode responseCode = BillingConstants.ResponseCode.valueOf(responseCodeIndex);
Log.i(TAG, "REQUEST_PURCHASE Sync Response code: "+responseCode.toString());
startBuyPageActivity(pendingIntent, new Intent(), activityContext);
} catch (RemoteException e) {
Log.e(TAG, "Failed, internet error maybe", e);
Log.e(TAG, "Billing supported: "+isBillingSupported());
}
}
/**
* A GET_PURCHASE_INFORMATION request also triggers two asynchronous responses (broadcast intents).
* First, the Android Market application sends a RESPONSE_CODE broadcast intent, which provides status and error information about the request. (which I ignore)
* Next, if the request was successful, the Android Market application sends a PURCHASE_STATE_CHANGED broadcast intent.
* This message contains detailed transaction information.
* The transaction information is contained in a signed JSON string (unencrypted).
* The message includes the signature so you can verify the integrity of the signed string
* @param notifyIds
*/
protected static void getPurchaseInformation(String[] notifyIds){
if (amIDead()) {
return;
}
Log.i(TAG, "getPurchaseInformation()");
Bundle request = makeRequestBundle("GET_PURCHASE_INFORMATION");
// The REQUEST_NONCE key contains a cryptographically secure nonce (number used once) that you must generate.
// The Android Market application returns this nonce with the PURCHASE_STATE_CHANGED broadcast intent so you can verify the integrity of the transaction information.
request.putLong("NONCE", BillingSecurity.generateNonce());
// The NOTIFY_IDS key contains an array of notification IDs, which you received in the IN_APP_NOTIFY broadcast intent.
request.putStringArray("NOTIFY_IDS", notifyIds);
try {
Bundle response = mService.sendBillingRequest(request);
//The REQUEST_ID key provides you with a unique request identifier for the request
Long requestIndentifier = (Long) response.get("REQUEST_ID");
Log.i(TAG, "current request is:" + requestIndentifier);
//The RESPONSE_CODE key provides you with the status of the request
Integer responseCodeIndex = (Integer) response.get("RESPONSE_CODE");
BillingConstants.ResponseCode responseCode = BillingConstants.ResponseCode.valueOf(responseCodeIndex);
Log.i(TAG, "GET_PURCHASE_INFORMATION Sync Response code: "+responseCode.toString());
} catch (RemoteException e) {
Log.e(TAG, "Failed, internet error maybe", e);
Log.e(TAG, "Billing supported: "+isBillingSupported());
}
}
/**
* To acknowledge that you received transaction information you send a
* CONFIRM_NOTIFICATIONS request.
*
* A CONFIRM_NOTIFICATIONS request triggers a single asynchronous response<EFBFBD>a RESPONSE_CODE broadcast intent.
* This broadcast intent provides status and error information about the request.
*
* Note: As a best practice, you should not send a CONFIRM_NOTIFICATIONS request for a purchased item until you have delivered the item to the user.
* This way, if your application crashes or something else prevents your application from delivering the product,
* your application will still receive an IN_APP_NOTIFY broadcast intent from Android Market indicating that you need to deliver the product
* @param notifyIds
*/
protected static void confirmTransaction(String[] notifyIds) {
if (amIDead()) {
return;
}
Log.i(TAG, "confirmTransaction()");
Bundle request = makeRequestBundle("CONFIRM_NOTIFICATIONS");
request.putStringArray("NOTIFY_IDS", notifyIds);
try {
Bundle response = mService.sendBillingRequest(request);
//The REQUEST_ID key provides you with a unique request identifier for the request
Long requestIndentifier = (Long) response.get("REQUEST_ID");
Log.i(TAG, "current request is:" + requestIndentifier);
//The RESPONSE_CODE key provides you with the status of the request
Integer responseCodeIndex = (Integer) response.get("RESPONSE_CODE");
BillingConstants.ResponseCode responseCode = BillingConstants.ResponseCode.valueOf(responseCodeIndex);
Log.i(TAG, "CONFIRM_NOTIFICATIONS Sync Response code: "+responseCode.toString());
} catch (RemoteException e) {
Log.e(TAG, "Failed, internet error maybe", e);
Log.e(TAG, "Billing supported: " + isBillingSupported());
}
}
/**
*
* Can be used for when a user has reinstalled the app to give back prior purchases.
* if an item for sale's purchase type is "managed per user account" this means google will have a record ofthis transaction
*
* A RESTORE_TRANSACTIONS request also triggers two asynchronous responses (broadcast intents).
* First, the Android Market application sends a RESPONSE_CODE broadcast intent, which provides status and error information about the request.
* Next, if the request was successful, the Android Market application sends a PURCHASE_STATE_CHANGED broadcast intent.
* This message contains the detailed transaction information. The transaction information is contained in a signed JSON string (unencrypted).
* The message includes the signature so you can verify the integrity of the signed string
* @param nonce
*/
protected static void restoreTransactionInformation(Long nonce) {
if (amIDead()) {
return;
}
Log.i(TAG, "confirmTransaction()");
Bundle request = makeRequestBundle("RESTORE_TRANSACTIONS");
// The REQUEST_NONCE key contains a cryptographically secure nonce (number used once) that you must generate
request.putLong("NONCE", nonce);
try {
Bundle response = mService.sendBillingRequest(request);
//The REQUEST_ID key provides you with a unique request identifier for the request
Long requestIndentifier = (Long) response.get("REQUEST_ID");
Log.i(TAG, "current request is:" + requestIndentifier);
//The RESPONSE_CODE key provides you with the status of the request
Integer responseCodeIndex = (Integer) response.get("RESPONSE_CODE");
BillingConstants.ResponseCode responseCode = BillingConstants.ResponseCode.valueOf(responseCodeIndex);
Log.i(TAG, "RESTORE_TRANSACTIONS Sync Response code: "+responseCode.toString());
} catch (RemoteException e) {
Log.e(TAG, "Failed, internet error maybe", e);
Log.e(TAG, "Billing supported: " + isBillingSupported());
}
}
private static boolean amIDead() {
if (mService == null || mContext == null) {
Log.e(TAG, "BillingHelper not fully instantiated");
return true;
} else {
return false;
}
}
private static Bundle makeRequestBundle(String method) {
Bundle request = new Bundle();
request.putString("BILLING_REQUEST", method);
request.putInt("API_VERSION", 1);
request.putString("PACKAGE_NAME", mContext.getPackageName());
return request;
}
/**
*
*
* You must launch the pending intent from an activity context and not an application context
* You cannot use the singleTop launch mode to launch the pending intent
* @param pendingIntent
* @param intent
* @param context
*/
private static void startBuyPageActivity(PendingIntent pendingIntent, Intent intent, Context context){
//TODO add above 2.0 implementation with reflection, for now just using 1.6 implem
// This is on Android 1.6. The in-app checkout page activity will be on its
// own separate activity stack instead of on the activity stack of
// the application.
try {
pendingIntent.send(context, 0, intent);
} catch (CanceledException e){
Log.e(TAG, "startBuyPageActivity CanceledException");
}
}
protected static void verifyPurchase(String signedData, String signature) {
ArrayList<VerifiedPurchase> purchases = BillingSecurity.verifyPurchase(signedData, signature);
latestPurchase = purchases.get(0);
confirmTransaction(new String[]{latestPurchase.notificationId});
if(mCompletedHandler != null){
mCompletedHandler.sendEmptyMessage(0);
} else {
Log.e(TAG, "verifyPurchase error. Handler not instantiated. Have you called setCompletedHandler()?");
}
}
public static void stopService(){
mContext.stopService(new Intent(mContext, BillingService.class));
mService = null;
mContext = null;
mCompletedHandler = null;
Log.i(TAG, "Stopping Service");
}
}

57
src/org/fox/ttrss/BillingReceiver.java Normal file
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package org.fox.ttrss;
import static org.fox.ttrss.BillingConstants.*;
import java.util.ArrayList;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Message;
import android.util.Log;
import org.fox.ttrss.BillingConstants;
import org.fox.ttrss.BillingSecurity.VerifiedPurchase;
public class BillingReceiver extends BroadcastReceiver {
private static final String TAG = "BillingService";
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.i(TAG, "Received action: " + action);
if (ACTION_PURCHASE_STATE_CHANGED.equals(action)) {
String signedData = intent.getStringExtra(INAPP_SIGNED_DATA);
String signature = intent.getStringExtra(INAPP_SIGNATURE);
purchaseStateChanged(context, signedData, signature);
} else if (ACTION_NOTIFY.equals(action)) {
String notifyId = intent.getStringExtra(NOTIFICATION_ID);
notify(context, notifyId);
} else if (ACTION_RESPONSE_CODE.equals(action)) {
long requestId = intent.getLongExtra(INAPP_REQUEST_ID, -1);
int responseCodeIndex = intent.getIntExtra(INAPP_RESPONSE_CODE, BillingConstants.ResponseCode.RESULT_ERROR.ordinal());
checkResponseCode(context, requestId, responseCodeIndex);
} else {
Log.e(TAG, "unexpected action: " + action);
}
}
private void purchaseStateChanged(Context context, String signedData, String signature) {
Log.i(TAG, "purchaseStateChanged got signedData: " + signedData);
Log.i(TAG, "purchaseStateChanged got signature: " + signature);
BillingHelper.verifyPurchase(signedData, signature);
}
private void notify(Context context, String notifyId) {
Log.i(TAG, "notify got id: " + notifyId);
String[] notifyIds = {notifyId};
BillingHelper.getPurchaseInformation(notifyIds);
}
private void checkResponseCode(Context context, long requestId, int responseCodeIndex) {
Log.i(TAG, "checkResponseCode got requestId: " + requestId);
Log.i(TAG, "checkResponseCode got responseCode: " + BillingConstants.ResponseCode.valueOf(responseCodeIndex));
}
}

258
src/org/fox/ttrss/BillingSecurity.java Normal file
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// Copyright 2010 Google Inc. All Rights Reserved.
package org.fox.ttrss;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Signature;
import java.security.SignatureException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.X509EncodedKeySpec;
import java.util.ArrayList;
import java.util.HashSet;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.text.TextUtils;
import android.util.Log;
import org.fox.ttrss.BillingConstants.PurchaseState;
import org.fox.ttrss.util.Base64;
import org.fox.ttrss.util.Base64DecoderException;
/**
* Security-related methods. For a secure implementation, all of this code
* should be implemented on a server that communicates with the application on
* the device. For the sake of simplicity and clarity of this example, this code
* is included here and is executed on the device. If you must verify the
* purchases on the phone, you should obfuscate this code to make it harder for
* an attacker to replace the code with stubs that treat all purchases as
* verified.
*/
public class BillingSecurity {
private static final String TAG = "BillingService";
private static final String KEY_FACTORY_ALGORITHM = "RSA";
private static final String SIGNATURE_ALGORITHM = "SHA1withRSA";
private static final SecureRandom RANDOM = new SecureRandom();
/**
* This keeps track of the nonces that we generated and sent to the server.
* We need to keep track of these until we get back the purchase state and
* send a confirmation message back to Android Market. If we are killed and
* lose this list of nonces, it is not fatal. Android Market will send us a
* new "notify" message and we will re-generate a new nonce. This has to be
* "static" so that the {@link BillingReceiver} can check if a nonce exists.
*/
private static HashSet<Long> sKnownNonces = new HashSet<Long>();
/**
* A class to hold the verified purchase information.
*/
public static class VerifiedPurchase {
public PurchaseState purchaseState;
public String notificationId;
public String productId;
public String orderId;
public long purchaseTime;
public String developerPayload;
public VerifiedPurchase(PurchaseState purchaseState, String notificationId, String productId, String orderId, long purchaseTime,
String developerPayload) {
this.purchaseState = purchaseState;
this.notificationId = notificationId;
this.productId = productId;
this.orderId = orderId;
this.purchaseTime = purchaseTime;
this.developerPayload = developerPayload;
}
public boolean isPurchased(){
return purchaseState.equals(PurchaseState.PURCHASED);
}
}
/** Generates a nonce (a random number used once). */
public static long generateNonce() {
long nonce = RANDOM.nextLong();
Log.i(TAG, "Nonce generateD: "+nonce);
sKnownNonces.add(nonce);
return nonce;
}
public static void removeNonce(long nonce) {
sKnownNonces.remove(nonce);
}
public static boolean isNonceKnown(long nonce) {
return sKnownNonces.contains(nonce);
}
/**
* Verifies that the data was signed with the given signature, and returns
* the list of verified purchases. The data is in JSON format and contains a
* nonce (number used once) that we generated and that was signed (as part
* of the whole data string) with a private key. The data also contains the
* {@link PurchaseState} and product ID of the purchase. In the general
* case, there can be an array of purchase transactions because there may be
* delays in processing the purchase on the backend and then several
* purchases can be batched together.
*
* @param signedData
* the signed JSON string (signed, not encrypted)
* @param signature
* the signature for the data, signed with the private key
*/
public static ArrayList<VerifiedPurchase> verifyPurchase(String signedData, String signature) {
if (signedData == null) {
Log.e(TAG, "data is null");
return null;
}
Log.i(TAG, "signedData: " + signedData);
boolean verified = false;
if (!TextUtils.isEmpty(signature)) {
/**
* Compute your public key (that you got from the Android Market
* publisher site).
*
* Instead of just storing the entire literal string here embedded
* in the program, construct the key at runtime from pieces or use
* bit manipulation (for example, XOR with some other string) to
* hide the actual key. The key itself is not secret information,
* but we don't want to make it easy for an adversary to replace the
* public key with one of their own and then fake messages from the
* server.
*
* Generally, encryption keys / passwords should only be kept in
* memory long enough to perform the operation they need to perform.
*/
String base64EncodedPublicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApLWBv8eFC4f7h6gz3VE87XX2nqJB2KL2yNnNawmgaL/0nd6nXvVRiZ3iXLLP9k8RpLJ6rZPV778z8WzDLZATV3b2nh21KgjSNoG4em1oSf7pW4+AujqjLfNVRsXoJIWG+OMMd9o9l/D2YJTCXzSvgFIfF5EJRg6APZHEVrVJo8iXwnYM1tFfLjPfp10MtjLmD5tZW8o3hTmXJ3ZMDI12PL22G4KaE+BuQqI6PZ22m/pA85R6AuhNo2IUSE4XFUE8i7ANWDvdfDzQ5J0TTWAeHmUQCstdZ48z+6AjqD3L2omS/dKoBnlYxEUZms3iUa1/Co40nWU7sc2hqpmfNiG5oQIDAQAB";
PublicKey key = BillingSecurity.generatePublicKey(base64EncodedPublicKey);
verified = BillingSecurity.verify(key, signedData, signature);
if (!verified) {
Log.w(TAG, "signature does not match data.");
return null;
}
}
JSONObject jObject;
JSONArray jTransactionsArray = null;
int numTransactions = 0;
long nonce = 0L;
try {
jObject = new JSONObject(signedData);
// The nonce might be null if the user backed out of the buy page.
nonce = jObject.optLong("nonce");
jTransactionsArray = jObject.optJSONArray("orders");
if (jTransactionsArray != null) {
numTransactions = jTransactionsArray.length();
}
} catch (JSONException e) {
return null;
}
if (!BillingSecurity.isNonceKnown(nonce)) {
Log.w(TAG, "Nonce not found: " + nonce);
return null;
}
ArrayList<VerifiedPurchase> purchases = new ArrayList<VerifiedPurchase>();
try {
for (int i = 0; i < numTransactions; i++) {
JSONObject jElement = jTransactionsArray.getJSONObject(i);
int response = jElement.getInt("purchaseState");
PurchaseState purchaseState = PurchaseState.valueOf(response);
String productId = jElement.getString("productId");
String packageName = jElement.getString("packageName");
long purchaseTime = jElement.getLong("purchaseTime");
String orderId = jElement.optString("orderId", "");
String notifyId = null;
if (jElement.has("notificationId")) {
notifyId = jElement.getString("notificationId");
}
String developerPayload = jElement.optString("developerPayload", null);
// If the purchase state is PURCHASED, then we require a
// verified nonce.
if (purchaseState == PurchaseState.PURCHASED && !verified) {
continue;
}
purchases.add(new VerifiedPurchase(purchaseState, notifyId, productId, orderId, purchaseTime, developerPayload));
}
} catch (JSONException e) {
Log.e(TAG, "JSON exception: ", e);
return null;
}
removeNonce(nonce);
return purchases;
}
/**
* Generates a PublicKey instance from a string containing the
* Base64-encoded public key.
*
* @param encodedPublicKey
* Base64-encoded public key
* @throws IllegalArgumentException
* if encodedPublicKey is invalid
*/
public static PublicKey generatePublicKey(String encodedPublicKey) {
try {
byte[] decodedKey = Base64.decode(encodedPublicKey);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_FACTORY_ALGORITHM);
return keyFactory.generatePublic(new X509EncodedKeySpec(decodedKey));
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
} catch (InvalidKeySpecException e) {
Log.e(TAG, "Invalid key specification.");
throw new IllegalArgumentException(e);
} catch (Base64DecoderException e) {
Log.e(TAG, "Base64DecoderException.", e);
return null;
}
}
/**
* Verifies that the signature from the server matches the computed
* signature on the data. Returns true if the data is correctly signed.
*
* @param publicKey
* public key associated with the developer account
* @param signedData
* signed data from server
* @param signature
* server signature
* @return true if the data and signature match
*/
public static boolean verify(PublicKey publicKey, String signedData, String signature) {
Log.i(TAG, "signature: " + signature);
Signature sig;
try {
sig = Signature.getInstance(SIGNATURE_ALGORITHM);
sig.initVerify(publicKey);
sig.update(signedData.getBytes());
if (!sig.verify(Base64.decode(signature))) {
Log.e(TAG, "Signature verification failed.");
return false;
}
return true;
} catch (NoSuchAlgorithmException e) {
Log.e(TAG, "NoSuchAlgorithmException.");
} catch (InvalidKeyException e) {
Log.e(TAG, "Invalid key specification.");
} catch (SignatureException e) {
Log.e(TAG, "Signature exception.");
} catch (Base64DecoderException e) {
Log.e(TAG, "Base64DecoderException.", e);
}
return false;
}
}

60
src/org/fox/ttrss/BillingService.java Normal file
View File

@ -0,0 +1,60 @@
package org.fox.ttrss;
import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.util.Log;
import com.android.vending.billing.IMarketBillingService;
public class BillingService extends Service implements ServiceConnection{
private static final String TAG = "BillingService";
/** The service connection to the remote MarketBillingService. */
private IMarketBillingService mService;
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "Service starting with onCreate");
try {
boolean bindResult = bindService(new Intent("com.android.vending.billing.MarketBillingService.BIND"), this, Context.BIND_AUTO_CREATE);
if(bindResult){
Log.i(TAG,"Market Billing Service Successfully Bound");
} else {
Log.e(TAG,"Market Billing Service could not be bound.");
//TODO stop user continuing
}
} catch (SecurityException e){
Log.e(TAG,"Market Billing Service could not be bound. SecurityException: "+e);
//TODO stop user continuing
}
}
public void setContext(Context context) {
attachBaseContext(context);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
Log.i(TAG, "Market Billing Service Connected.");
mService = IMarketBillingService.Stub.asInterface(service);
BillingHelper.instantiateHelper(getBaseContext(), mService);
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
}

49
src/org/fox/ttrss/MainActivity.java
View File

@ -23,6 +23,7 @@ import android.database.sqlite.SQLiteDatabase;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
@ -69,6 +70,7 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
private boolean m_isLoggingIn = false;
private boolean m_isOffline = false;
private boolean m_offlineModeReady = false;
private int m_selectedProduct = -1;
private SQLiteDatabase m_readableDb;
private SQLiteDatabase m_writableDb;
@ -882,6 +884,45 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
.findFragmentById(R.id.headlines_fragment);
switch (item.getItemId()) {
case R.id.donate:
if (true) {
CharSequence[] items = { "Silver Donation ($2)", "Gold Donation ($5)", "Platinum Donation ($10)" };
Dialog dialog = new Dialog(MainActivity.this);
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this)
.setTitle(R.string.donate_select)
.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
m_selectedProduct = which;
}
}).setNegativeButton(R.string.dialog_close, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).setPositiveButton(R.string.donate_do, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (m_selectedProduct != -1 && m_selectedProduct < 3) {
CharSequence[] products = { "donation_silver", "donation_gold", "donation_platinum2" };
Log.d(TAG, "Selected product: " + products[m_selectedProduct]);
BillingHelper.requestPurchase(MainActivity.this, (String) products[m_selectedProduct]);
dialog.dismiss();
}
}
});
dialog = builder.create();
dialog.show();
}
return true;
case android.R.id.home:
goBack(false);
return true;
@ -1130,7 +1171,7 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
Dialog dialog = new Dialog(MainActivity.this);
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this)
.setTitle("Set labels")
.setTitle(R.string.article_set_labels)
.setMultiChoiceItems(items, checkedItems, new OnMultiChoiceClickListener() {
@Override
@ -1152,7 +1193,7 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
req.execute(map);
}
}).setPositiveButton("Close", new OnClickListener() {
}).setPositiveButton(R.string.dialog_close, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
@ -1359,6 +1400,8 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
m_menu.findItem(R.id.set_labels).setEnabled(m_apiLevel >= 1);
m_menu.findItem(R.id.donate).setVisible(BillingHelper.isBillingSupported());
} else {
m_menu.setGroupVisible(R.id.menu_group_logged_in, false);
m_menu.setGroupVisible(R.id.menu_group_logged_out, true);
@ -1410,6 +1453,8 @@ public class MainActivity extends FragmentActivity implements OnlineServices {
m_isOffline = false;
startService(new Intent(MainActivity.this, BillingService.class));
initMainMenu();
if (m_refreshTask != null) {

582
src/org/fox/ttrss/util/Base64.java Normal file
View File

@ -0,0 +1,582 @@
// Portions copyright 2002, 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 org.fox.ttrss.util;
// This code was converted from code at http://iharder.sourceforge.net/base64/
// Lots of extraneous features were removed.
/* The original code said:
* <p>
* I am placing this code in the Public Domain. Do with it as you will.
* This software comes with no guarantees or warranties but with
* plenty of well-wishing instead!
* Please visit
* <a href="http://iharder.net/xmlizable">http://iharder.net/xmlizable</a>
* periodically to check for updates or to contribute improvements.
* </p>
*
* @author Robert Harder
* @author rharder@usa.net
* @version 1.3
*/
/**
* Base64 converter class. This code is not a complete MIME encoder; it simply
* converts binary data to base64 data and back.
*
* <p>
* Note {@link CharBase64} is a GWT-compatible implementation of this class.
*/
public class Base64 {
/** Specify encoding (value is {@code true}). */
public final static boolean ENCODE = true;
/** Specify decoding (value is {@code false}). */
public final static boolean DECODE = false;
/** The equals sign (=) as a byte. */
private final static byte EQUALS_SIGN = (byte) '=';
/** The new line character (\n) as a byte. */
private final static byte NEW_LINE = (byte) '\n';
/**
* The 64 valid Base64 values.
*/
private final static byte[] ALPHABET = { (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G',
(byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P', (byte) 'Q',
(byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', (byte) 'a',
(byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k',
(byte) 'l', (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u',
(byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y', (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4',
(byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) '+', (byte) '/' };
/**
* The 64 valid web safe Base64 values.
*/
private final static byte[] WEBSAFE_ALPHABET = { (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G',
(byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P', (byte) 'Q',
(byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', (byte) 'a',
(byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k',
(byte) 'l', (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u',
(byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y', (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4',
(byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) '-', (byte) '_' };
/**
* Translates a Base64 value to either its 6-bit reconstruction value or a
* negative number indicating some other meaning.
**/
private final static byte[] DECODABET = { -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal
// 0
// -
// 8
-5, -5, // Whitespace: Tab and Linefeed
-9, -9, // Decimal 11 - 12
-5, // Whitespace: Carriage Return
-9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 -
// 26
-9, -9, -9, -9, -9, // Decimal 27 - 31
-5, // Whitespace: Space
-9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 42
62, // Plus sign at decimal 43
-9, -9, -9, // Decimal 44 - 46
63, // Slash at decimal 47
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine
-9, -9, -9, // Decimal 58 - 60
-1, // Equals sign at decimal 61
-9, -9, -9, // Decimal 62 - 64
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through
// 'N'
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O'
// through 'Z'
-9, -9, -9, -9, -9, -9, // Decimal 91 - 96
26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a'
// through 'm'
39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n'
// through 'z'
-9, -9, -9, -9, -9 // Decimal 123 - 127
/*
* ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 128 - 139
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255
*/
};
/** The web safe decodabet */
private final static byte[] WEBSAFE_DECODABET = { -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal
// 0
// -
// 8
-5, -5, // Whitespace: Tab and Linefeed
-9, -9, // Decimal 11 - 12
-5, // Whitespace: Carriage Return
-9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 -
// 26
-9, -9, -9, -9, -9, // Decimal 27 - 31
-5, // Whitespace: Space
-9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 44
62, // Dash '-' sign at decimal 45
-9, -9, // Decimal 46-47
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine
-9, -9, -9, // Decimal 58 - 60
-1, // Equals sign at decimal 61
-9, -9, -9, // Decimal 62 - 64
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through
// 'N'
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O'
// through 'Z'
-9, -9, -9, -9, // Decimal 91-94
63, // Underscore '_' at decimal 95
-9, // Decimal 96
26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a'
// through 'm'
39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n'
// through 'z'
-9, -9, -9, -9, -9 // Decimal 123 - 127
/*
* ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 128 - 139
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243
* -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255
*/
};
// Indicates white space in encoding
private final static byte WHITE_SPACE_ENC = -5;
// Indicates equals sign in encoding
private final static byte EQUALS_SIGN_ENC = -1;
/** Defeats instantiation. */
private Base64() {
}
/* ******** E N C O D I N G M E T H O D S ******** */
/**
* Encodes up to three bytes of the array <var>source</var> and writes the
* resulting four Base64 bytes to <var>destination</var>. The source and
* destination arrays can be manipulated anywhere along their length by
* specifying <var>srcOffset</var> and <var>destOffset</var>. This method
* does not check to make sure your arrays are large enough to accommodate
* <var>srcOffset</var> + 3 for the <var>source</var> array or
* <var>destOffset</var> + 4 for the <var>destination</var> array. The
* actual number of significant bytes in your array is given by
* <var>numSigBytes</var>.
*
* @param source
* the array to convert
* @param srcOffset
* the index where conversion begins
* @param numSigBytes
* the number of significant bytes in your array
* @param destination
* the array to hold the conversion
* @param destOffset
* the index where output will be put
* @param alphabet
* is the encoding alphabet
* @return the <var>destination</var> array
* @since 1.3
*/
private static byte[] encode3to4(byte[] source, int srcOffset, int numSigBytes, byte[] destination, int destOffset, byte[] alphabet) {
// 1 2 3
// 01234567890123456789012345678901 Bit position
// --------000000001111111122222222 Array position from threeBytes
// --------| || || || | Six bit groups to index alphabet
// >>18 >>12 >> 6 >> 0 Right shift necessary
// 0x3f 0x3f 0x3f Additional AND
// Create buffer with zero-padding if there are only one or two
// significant bytes passed in the array.
// We have to shift left 24 in order to flush out the 1's that appear
// when Java treats a value as negative that is cast from a byte to an
// int.
int inBuff = (numSigBytes > 0 ? ((source[srcOffset] << 24) >>> 8) : 0)
| (numSigBytes > 1 ? ((source[srcOffset + 1] << 24) >>> 16) : 0)
| (numSigBytes > 2 ? ((source[srcOffset + 2] << 24) >>> 24) : 0);
switch (numSigBytes) {
case 3:
destination[destOffset] = alphabet[(inBuff >>> 18)];
destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
destination[destOffset + 2] = alphabet[(inBuff >>> 6) & 0x3f];
destination[destOffset + 3] = alphabet[(inBuff) & 0x3f];
return destination;
case 2:
destination[destOffset] = alphabet[(inBuff >>> 18)];
destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
destination[destOffset + 2] = alphabet[(inBuff >>> 6) & 0x3f];
destination[destOffset + 3] = EQUALS_SIGN;
return destination;
case 1:
destination[destOffset] = alphabet[(inBuff >>> 18)];
destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
destination[destOffset + 2] = EQUALS_SIGN;
destination[destOffset + 3] = EQUALS_SIGN;
return destination;
default:
return destination;
} // end switch
} // end encode3to4
/**
* Encodes a byte array into Base64 notation. Equivalent to calling {@code
* encodeBytes(source, 0, source.length)}
*
* @param source
* The data to convert
* @since 1.4
*/
public static String encode(byte[] source) {
return encode(source, 0, source.length, ALPHABET, true);
}
/**
* Encodes a byte array into web safe Base64 notation.
*
* @param source
* The data to convert
* @param doPadding
* is {@code true} to pad result with '=' chars if it does not
* fall on 3 byte boundaries
*/
public static String encodeWebSafe(byte[] source, boolean doPadding) {
return encode(source, 0, source.length, WEBSAFE_ALPHABET, doPadding);
}
/**
* Encodes a byte array into Base64 notation.
*
* @param source
* the data to convert
* @param off
* offset in array where conversion should begin
* @param len
* length of data to convert
* @param alphabet
* the encoding alphabet
* @param doPadding
* is {@code true} to pad result with '=' chars if it does not
* fall on 3 byte boundaries
* @since 1.4
*/
public static String encode(byte[] source, int off, int len, byte[] alphabet, boolean doPadding) {
byte[] outBuff = encode(source, off, len, alphabet, Integer.MAX_VALUE);
int outLen = outBuff.length;
// If doPadding is false, set length to truncate '='
// padding characters
while (doPadding == false && outLen > 0) {
if (outBuff[outLen - 1] != '=') {
break;
}
outLen -= 1;
}
return new String(outBuff, 0, outLen);
}
/**
* Encodes a byte array into Base64 notation.
*
* @param source
* the data to convert
* @param off
* offset in array where conversion should begin
* @param len
* length of data to convert
* @param alphabet
* is the encoding alphabet
* @param maxLineLength
* maximum length of one line.
* @return the BASE64-encoded byte array
*/
public static byte[] encode(byte[] source, int off, int len, byte[] alphabet, int maxLineLength) {
int lenDiv3 = (len + 2) / 3; // ceil(len / 3)
int len43 = lenDiv3 * 4;
byte[] outBuff = new byte[len43 // Main 4:3
+ (len43 / maxLineLength)]; // New lines
int d = 0;
int e = 0;
int len2 = len - 2;
int lineLength = 0;
for (; d < len2; d += 3, e += 4) {
// The following block of code is the same as
// encode3to4( source, d + off, 3, outBuff, e, alphabet );
// but inlined for faster encoding (~20% improvement)
int inBuff = ((source[d + off] << 24) >>> 8) | ((source[d + 1 + off] << 24) >>> 16) | ((source[d + 2 + off] << 24) >>> 24);
outBuff[e] = alphabet[(inBuff >>> 18)];
outBuff[e + 1] = alphabet[(inBuff >>> 12) & 0x3f];
outBuff[e + 2] = alphabet[(inBuff >>> 6) & 0x3f];
outBuff[e + 3] = alphabet[(inBuff) & 0x3f];
lineLength += 4;
if (lineLength == maxLineLength) {
outBuff[e + 4] = NEW_LINE;
e++;
lineLength = 0;
} // end if: end of line
} // end for: each piece of array
if (d < len) {
encode3to4(source, d + off, len - d, outBuff, e, alphabet);
lineLength += 4;
if (lineLength == maxLineLength) {
// Add a last newline
outBuff[e + 4] = NEW_LINE;
e++;
}
e += 4;
}
assert (e == outBuff.length);
return outBuff;
}
/* ******** D E C O D I N G M E T H O D S ******** */
/**
* Decodes four bytes from array <var>source</var> and writes the resulting
* bytes (up to three of them) to <var>destination</var>. The source and
* destination arrays can be manipulated anywhere along their length by
* specifying <var>srcOffset</var> and <var>destOffset</var>. This method
* does not check to make sure your arrays are large enough to accommodate
* <var>srcOffset</var> + 4 for the <var>source</var> array or
* <var>destOffset</var> + 3 for the <var>destination</var> array. This
* method returns the actual number of bytes that were converted from the
* Base64 encoding.
*
*
* @param source
* the array to convert
* @param srcOffset
* the index where conversion begins
* @param destination
* the array to hold the conversion
* @param destOffset
* the index where output will be put
* @param decodabet
* the decodabet for decoding Base64 content
* @return the number of decoded bytes converted
* @since 1.3
*/
private static int decode4to3(byte[] source, int srcOffset, byte[] destination, int destOffset, byte[] decodabet) {
// Example: Dk==
if (source[srcOffset + 2] == EQUALS_SIGN) {
int outBuff = ((decodabet[source[srcOffset]] << 24) >>> 6) | ((decodabet[source[srcOffset + 1]] << 24) >>> 12);
destination[destOffset] = (byte) (outBuff >>> 16);
return 1;
} else if (source[srcOffset + 3] == EQUALS_SIGN) {
// Example: DkL=
int outBuff = ((decodabet[source[srcOffset]] << 24) >>> 6) | ((decodabet[source[srcOffset + 1]] << 24) >>> 12)
| ((decodabet[source[srcOffset + 2]] << 24) >>> 18);
destination[destOffset] = (byte) (outBuff >>> 16);
destination[destOffset + 1] = (byte) (outBuff >>> 8);
return 2;
} else {
// Example: DkLE
int outBuff = ((decodabet[source[srcOffset]] << 24) >>> 6) | ((decodabet[source[srcOffset + 1]] << 24) >>> 12)
| ((decodabet[source[srcOffset + 2]] << 24) >>> 18) | ((decodabet[source[srcOffset + 3]] << 24) >>> 24);
destination[destOffset] = (byte) (outBuff >> 16);
destination[destOffset + 1] = (byte) (outBuff >> 8);
destination[destOffset + 2] = (byte) (outBuff);
return 3;
}
} // end decodeToBytes
/**
* Decodes data from Base64 notation.
*
* @param s
* the string to decode (decoded in default encoding)
* @return the decoded data
* @since 1.4
*/
public static byte[] decode(String s) throws Base64DecoderException {
byte[] bytes = s.getBytes();
return decode(bytes, 0, bytes.length);
}
/**
* Decodes data from web safe Base64 notation. Web safe encoding uses '-'
* instead of '+', '_' instead of '/'
*
* @param s
* the string to decode (decoded in default encoding)
* @return the decoded data
*/
public static byte[] decodeWebSafe(String s) throws Base64DecoderException {
byte[] bytes = s.getBytes();
return decodeWebSafe(bytes, 0, bytes.length);
}
/**
* Decodes Base64 content in byte array format and returns the decoded byte
* array.
*
* @param source
* The Base64 encoded data
* @return decoded data
* @since 1.3
* @throws Base64DecoderException
*/
public static byte[] decode(byte[] source) throws Base64DecoderException {
return decode(source, 0, source.length);
}
/**
* Decodes web safe Base64 content in byte array format and returns the
* decoded data. Web safe encoding uses '-' instead of '+', '_' instead of
* '/'
*
* @param source
* the string to decode (decoded in default encoding)
* @return the decoded data
*/
public static byte[] decodeWebSafe(byte[] source) throws Base64DecoderException {
return decodeWebSafe(source, 0, source.length);
}
/**
* Decodes Base64 content in byte array format and returns the decoded byte
* array.
*
* @param source
* the Base64 encoded data
* @param off
* the offset of where to begin decoding
* @param len
* the length of characters to decode
* @return decoded data
* @since 1.3
* @throws Base64DecoderException
*/
public static byte[] decode(byte[] source, int off, int len) throws Base64DecoderException {
return decode(source, off, len, DECODABET);
}
/**
* Decodes web safe Base64 content in byte array format and returns the
* decoded byte array. Web safe encoding uses '-' instead of '+', '_'
* instead of '/'
*
* @param source
* the Base64 encoded data
* @param off
* the offset of where to begin decoding
* @param len
* the length of characters to decode
* @return decoded data
*/
public static byte[] decodeWebSafe(byte[] source, int off, int len) throws Base64DecoderException {
return decode(source, off, len, WEBSAFE_DECODABET);
}
/**
* Decodes Base64 content using the supplied decodabet and returns the
* decoded byte array.
*
* @param source
* the Base64 encoded data
* @param off
* the offset of where to begin decoding
* @param len
* the length of characters to decode
* @param decodabet
* the decodabet for decoding Base64 content
* @return decoded data
*/
public static byte[] decode(byte[] source, int off, int len, byte[] decodabet) throws Base64DecoderException {
int len34 = len * 3 / 4;
byte[] outBuff = new byte[2 + len34]; // Upper limit on size of output
int outBuffPosn = 0;
byte[] b4 = new byte[4];
int b4Posn = 0;
int i = 0;
byte sbiCrop = 0;
byte sbiDecode = 0;
for (i = 0; i < len; i++) {
sbiCrop = (byte) (source[i + off] & 0x7f); // Only the low seven
// bits
sbiDecode = decodabet[sbiCrop];
if (sbiDecode >= WHITE_SPACE_ENC) { // White space Equals sign or
// better
if (sbiDecode >= EQUALS_SIGN_ENC) {
// An equals sign (for padding) must not occur at position 0
// or 1
// and must be the last byte[s] in the encoded value
if (sbiCrop == EQUALS_SIGN) {
int bytesLeft = len - i;
byte lastByte = (byte) (source[len - 1 + off] & 0x7f);
if (b4Posn == 0 || b4Posn == 1) {
throw new Base64DecoderException("invalid padding byte '=' at byte offset " + i);
} else if ((b4Posn == 3 && bytesLeft > 2) || (b4Posn == 4 && bytesLeft > 1)) {
throw new Base64DecoderException("padding byte '=' falsely signals end of encoded value " + "at offset " + i);
} else if (lastByte != EQUALS_SIGN && lastByte != NEW_LINE) {
throw new Base64DecoderException("encoded value has invalid trailing byte");
}
break;
}
b4[b4Posn++] = sbiCrop;
if (b4Posn == 4) {
outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, decodabet);
b4Posn = 0;
}
}
} else {
throw new Base64DecoderException("Bad Base64 input character at " + i + ": " + source[i + off] + "(decimal)");
}
}
// Because web safe encoding allows non padding base64 encodes, we
// need to pad the rest of the b4 buffer with equal signs when
// b4Posn != 0. There can be at most 2 equal signs at the end of
// four characters, so the b4 buffer must have two or three
// characters. This also catches the case where the input is
// padded with EQUALS_SIGN
if (b4Posn != 0) {
if (b4Posn == 1) {
// Ensure you have set your public key
throw new Base64DecoderException("single trailing character at offset " + (len - 1));
}
b4[b4Posn++] = EQUALS_SIGN;
outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, decodabet);
}
byte[] out = new byte[outBuffPosn];
System.arraycopy(outBuff, 0, out, 0, outBuffPosn);
return out;
}
}

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src/org/fox/ttrss/util/Base64DecoderException.java Normal file
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@ -0,0 +1,32 @@
// Copyright 2002, 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 org.fox.ttrss.util;;
/**
* Exception thrown when encountering an invalid Base64 input character.
*
* @author nelson
*/
public class Base64DecoderException extends Exception {
public Base64DecoderException() {
super();
}
public Base64DecoderException(String s) {
super(s);
}
private static final long serialVersionUID = 1L;
}