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GNU General Public License
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/* * Google Voice Tasker Plugin - Tasker integration with Google Voice * Copyright (C) 2012 Kenneth Ko <http://www.kenko.co> */*w w w . j av a 2s . co m*/ * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.ko.googlevoice.bundle; import android.content.Intent; import android.os.Bundle; /** * Helper class to scrub Bundles of invalid extras. This is a workaround for an Android bug: * <http://code.google.com/p/android/issues/detail?id=16006>. */ public final class BundleScrubber { /** * Scrubs Intents for private serializable subclasses in the Intent extras. If the Intent's extras contain a private * serializable subclass, the Bundle is cleared. The Bundle will not be set to null. If the Bundle is null, has no extras, or * the extras do not contain a private serializable subclass, the Bundle is not mutated. * * @param intent {@code Intent} to scrub. This parameter may be mutated if scrubbing is necessary. This parameter may be null. * @return true if the Intent was scrubbed, false if the Intent was not modified. */ public static boolean scrub(final Intent intent) { if (intent == null) { return false; } return scrub(intent.getExtras()); } /** * Scrubs Bundles for private serializable subclasses in the extras. If the Bundle's extras contain a private serializable * subclass, the Bundle is cleared. If the Bundle is null, has no extras, or the extras do not contain a private serializable * subclass, the Bundle is not mutated. * * @param bundle {@code Bundle} to scrub. This parameter may be mutated if scrubbing is necessary. This parameter may be null. * @return true if the Bundle was scrubbed, false if the Bundle was not modified. */ public static boolean scrub(final Bundle bundle) { if (bundle == null) { return false; } /* * Note: This is a hack to work around a private serializable classloader attack */ try { // if a private serializable exists, this will throw an exception bundle.containsKey(null); } catch (final Exception e) { bundle.clear(); return true; } return false; } }