Do not merge (15d21453) · Commits · e / os / android_frameworks_base

core/java/android/webkit/GearsPermissionsManager.java

0 → 100644

+218 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2009 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 android.webkit;

		import android.content.ContentResolver;
		import android.content.ContentValues;
		import android.content.Context;
		import android.content.SharedPreferences;
		import android.content.SharedPreferences.Editor;
		import android.database.ContentObserver;
		import android.database.sqlite.SQLiteDatabase;
		import android.database.sqlite.SQLiteException;
		import android.database.sqlite.SQLiteStatement;
		import android.os.Handler;
		import android.preference.PreferenceManager;
		import android.provider.Settings;
		import android.util.Log;

		import java.io.File;
		import java.util.HashSet;

		/**
		* Donut-specific hack to keep Gears permissions in sync with the
		* system location setting.
		*/
		class GearsPermissionsManager {
		// The application context.
		Context mContext;
		// The path to gears.so.
		private String mGearsPath;

		// The Gears permissions database directory.
		private final static String GEARS_DATABASE_DIR = "gears";
		// The Gears permissions database file name.
		private final static String GEARS_DATABASE_FILE = "permissions.db";
		// The Gears location permissions table.
		private final static String GEARS_LOCATION_ACCESS_TABLE_NAME =
		"LocationAccess";
		// The Gears storage access permissions table.
		private final static String GEARS_STORAGE_ACCESS_TABLE_NAME = "Access";
		// The Gears permissions db schema version table.
		private final static String GEARS_SCHEMA_VERSION_TABLE_NAME =
		"VersionInfo";
		// The shared pref name.
		private static final String LAST_KNOWN_LOCATION_SETTING =
		"lastKnownLocationSystemSetting";
		// The Browser package name.
		private static final String BROWSER_PACKAGE_NAME = "com.android.browser";
		// The Secure Settings observer that will be notified when the system
		// location setting changes.
		private SecureSettingsObserver mSettingsObserver;
		// The Google URLs whitelisted for Gears location access.
		private static HashSet<String> sGearsWhiteList;

		static {
		sGearsWhiteList = new HashSet<String>();
		// NOTE: DO NOT ADD A "/" AT THE END!
		sGearsWhiteList.add("http://www.google.com");
		sGearsWhiteList.add("http://www.google.co.uk");
		}

		private static final String LOGTAG = "webcore";
		static final boolean DEBUG = false;
		static final boolean LOGV_ENABLED = DEBUG;

		GearsPermissionsManager(Context context, String gearsPath) {
		mContext = context;
		mGearsPath = gearsPath;
		}

		public void doCheckAndStartObserver() {
		// Are we running in the browser?
		if (!BROWSER_PACKAGE_NAME.equals(mContext.getPackageName())) {
		return;
		}
		// Do the check.
		checkGearsPermissions();
		// Install the observer.
		mSettingsObserver = new SecureSettingsObserver();
		mSettingsObserver.observe();
		}

		private void checkGearsPermissions() {
		// Get the current system settings.
		int setting = Settings.Secure.getInt(mContext.getContentResolver(),
		Settings.Secure.USE_LOCATION_FOR_SERVICES, -1);
		// Check if we need to set the Gears permissions.
		if (setting != -1 && locationSystemSettingChanged(setting)) {
		setGearsPermissionForGoogleDomains(setting);
		}
		}

		private boolean locationSystemSettingChanged(int newSetting) {
		SharedPreferences prefs =
		PreferenceManager.getDefaultSharedPreferences(mContext);
		int oldSetting = 0;
		oldSetting = prefs.getInt(LAST_KNOWN_LOCATION_SETTING, oldSetting);
		if (oldSetting == newSetting) {
		return false;
		}
		Editor ed = prefs.edit();
		ed.putInt(LAST_KNOWN_LOCATION_SETTING, newSetting);
		ed.commit();
		return true;
		}

		private void setGearsPermissionForGoogleDomains(int systemPermission) {
		// Transform the system permission into a Gears permission
		int gearsPermission = (systemPermission == 1 ? 1 : 2);
		// Build the path to the Gears library.

		File file = new File(mGearsPath).getParentFile();
		if (file == null) {
		return;
		}
		// Build the Gears database file name.
		file = new File(file.getAbsolutePath() + File.separator
		+ GEARS_DATABASE_DIR + File.separator + GEARS_DATABASE_FILE);
		// Remember whether or not we need to create the LocationAccess table.
		boolean needToCreateTables = !file.exists();
		// Try opening the Gears database.
		SQLiteDatabase permissions;
		try {
		permissions = SQLiteDatabase.openOrCreateDatabase(file, null);
		} catch (SQLiteException e) {
		if (LOGV_ENABLED) {
		Log.v(LOGTAG, "Could not open Gears permission DB: "
		+ e.getMessage());
		}
		// Just bail out.
		return;
		}
		// We now have a database open. Begin a transaction.
		permissions.beginTransaction();
		try {
		if (needToCreateTables) {
		// Create the tables. Note that this creates the
		// Gears tables for the permissions DB schema version 2.
		// The Gears schema upgrade process will take care of the rest.
		// First, the storage access table.
		SQLiteStatement statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS "
		+ GEARS_STORAGE_ACCESS_TABLE_NAME
		+ " (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Next the location access table.
		statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS "
		+ GEARS_LOCATION_ACCESS_TABLE_NAME
		+ " (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Finally, the schema version table.
		statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS "
		+ GEARS_SCHEMA_VERSION_TABLE_NAME
		+ " (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Set the schema version to 2.
		ContentValues schema = new ContentValues();
		schema.put("Name", "Version");
		schema.put("Value", 2);
		permissions.insert(GEARS_SCHEMA_VERSION_TABLE_NAME, null,
		schema);
		}

		ContentValues permissionValues = new ContentValues();

		for (String url : sGearsWhiteList) {
		permissionValues.put("Name", url);
		permissionValues.put("Value", gearsPermission);
		permissions.replace(GEARS_LOCATION_ACCESS_TABLE_NAME, null,
		permissionValues);
		permissionValues.clear();
		}
		// Commit the transaction.
		permissions.setTransactionSuccessful();
		} catch (SQLiteException e) {
		if (LOGV_ENABLED) {
		Log.v(LOGTAG, "Could not set the Gears permissions: "
		+ e.getMessage());
		}
		} finally {
		permissions.endTransaction();
		permissions.close();
		}
		}

		class SecureSettingsObserver extends ContentObserver {
		SecureSettingsObserver() {
		super(new Handler());
		}

		void observe() {
		ContentResolver resolver = mContext.getContentResolver();
		resolver.registerContentObserver(Settings.Secure.getUriFor(
		Settings.Secure.USE_LOCATION_FOR_SERVICES), false, this);
		}

		@Override
		public void onChange(boolean selfChange) {
		checkGearsPermissions();
		}
		}
		}

core/java/android/webkit/WebSettings.java

+11 −160

Original line number	Diff line number	Diff line
		@@ -16,27 +16,15 @@

		package android.webkit;

		import android.content.ContentValues;
		import android.content.Context;
		import android.content.SharedPreferences;
		import android.content.pm.PackageManager;
		import android.os.Build;
		import android.os.Handler;
		import android.os.Message;
		import android.preference.PreferenceManager;
		import android.provider.Checkin;
		import android.provider.Settings;
		import android.util.Log;

		import java.io.File;
		import java.lang.SecurityException;

		import android.content.SharedPreferences.Editor;
		import android.content.pm.PackageManager;
		import android.database.sqlite.SQLiteDatabase;
		import android.database.sqlite.SQLiteException;
		import android.database.sqlite.SQLiteStatement;

		import java.util.HashSet;
		import java.util.Locale;

		/**
		@@ -188,42 +176,8 @@ public class WebSettings {
		private boolean mBuiltInZoomControls = false;
		private boolean mAllowFileAccess = true;

		// Donut-specific hack to keep Gears permissions in sync with the
		// system location setting.
		// TODO: Make sure this hack is removed in Eclair, when Gears
		// is also removed.
		// Used to remember if we checked the Gears permissions already.
		static boolean mCheckedGearsPermissions = false;
		// The Gears permissions database directory.
		private final static String GEARS_DATABASE_DIR = "gears";
		// The Gears permissions database file name.
		private final static String GEARS_DATABASE_FILE = "permissions.db";
		// The Gears location permissions table.
		private final static String GEARS_LOCATION_ACCESS_TABLE_NAME =
		"LocationAccess";
		// The Gears storage access permissions table.
		private final static String GEARS_STORAGE_ACCESS_TABLE_NAME = "Access";
		// The Gears permissions db schema version table.
		private final static String GEARS_SCHEMA_VERSION_TABLE_NAME =
		"VersionInfo";
		// The shared pref name.
		private static final String LAST_KNOWN_LOCATION_SETTING =
		"lastKnownLocationSystemSetting";
		// The Browser package name.
		private static final String BROWSER_PACKAGE_NAME = "com.android.browser";
		// The Google URLs whitelisted for Gears location access.
		private static HashSet<String> sGearsWhiteList;

		static {
		sGearsWhiteList = new HashSet<String>();
		// NOTE: DO NOT ADD A "/" AT THE END!
		sGearsWhiteList.add("http://www.google.com");
		sGearsWhiteList.add("http://www.google.co.uk");
		}

		private static final String LOGTAG = "webcore";
		static final boolean DEBUG = false;
		static final boolean LOGV_ENABLED = DEBUG;
		// The Gears permissions manager. Only in Donut.
		static GearsPermissionsManager sGearsPermissionsManager;

		// Class to handle messages before WebCore is ready.
		private class EventHandler {
		@@ -245,7 +199,6 @@ public class WebSettings {
		switch (msg.what) {
		case SYNC:
		synchronized (WebSettings.this) {
		checkGearsPermissions();
		if (mBrowserFrame.mNativeFrame != 0) {
		nativeSync(mBrowserFrame.mNativeFrame);
		}
		@@ -1198,6 +1151,7 @@ public class WebSettings {
		if (WebView.DEBUG) {
		junit.framework.Assert.assertTrue(frame.mNativeFrame != 0);
		}
		checkGearsPermissions();
		nativeSync(frame.mNativeFrame);
		mSyncPending = false;
		mEventHandler.createHandler();
		@@ -1214,125 +1168,22 @@ public class WebSettings {
		}

		private void checkGearsPermissions() {
		// Did we already check the permissions?
		if (mCheckedGearsPermissions) {
		return;
		}
		// Are we running in the browser?
		if (!BROWSER_PACKAGE_NAME.equals(mContext.getPackageName())) {
		// Did we already check the permissions at startup?
		if (sGearsPermissionsManager != null) {
		return;
		}
		// Is the pluginsPath sane?
		if (mPluginsPath == null \|\| mPluginsPath.length() == 0) {
		String pluginsPath = getPluginsPath();
		if (pluginsPath == null \|\| pluginsPath.length() == 0) {
		// We don't yet have a meaningful plugin path, so
		// we can't do anything about the Gears permissions.
		return;
		}
		// Remember we checked the Gears permissions.
		mCheckedGearsPermissions = true;
		// Get the current system settings.
		int setting = Settings.Secure.getInt(mContext.getContentResolver(),
		Settings.Secure.USE_LOCATION_FOR_SERVICES, -1);
		// Check if we need to set the Gears permissions.
		if (setting != -1 && locationSystemSettingChanged(setting)) {
		setGearsPermissionForGoogleDomains(setting);
		}
		}

		private boolean locationSystemSettingChanged(int newSetting) {
		SharedPreferences prefs =
		PreferenceManager.getDefaultSharedPreferences(mContext);
		int oldSetting = 0;
		oldSetting = prefs.getInt(LAST_KNOWN_LOCATION_SETTING, oldSetting);
		if (oldSetting == newSetting) {
		return false;
		}
		Editor ed = prefs.edit();
		ed.putInt(LAST_KNOWN_LOCATION_SETTING, newSetting);
		ed.commit();
		return true;
		sGearsPermissionsManager =
		new GearsPermissionsManager(mContext, pluginsPath);
		sGearsPermissionsManager.doCheckAndStartObserver();
		}

		private void setGearsPermissionForGoogleDomains(int systemPermission) {
		// Transform the system permission into a Gears permission
		int gearsPermission = (systemPermission == 1 ? 1 : 2);
		// Build the path to the Gears library.

		File file = new File(mPluginsPath).getParentFile();
		if (file == null) {
		return;
		}
		// Build the Gears database file name.
		file = new File(file.getAbsolutePath() + File.separator
		+ GEARS_DATABASE_DIR + File.separator + GEARS_DATABASE_FILE);
		// Remember whether or not we need to create the LocationAccess table.
		boolean needToCreateTables = !file.exists();
		// Try opening the Gears database.
		SQLiteDatabase permissions;
		try {
		permissions = SQLiteDatabase.openOrCreateDatabase(file, null);
		} catch (SQLiteException e) {
		if (LOGV_ENABLED) {
		Log.v(LOGTAG, "Could not open Gears permission DB: " +
		e.getMessage());
		}
		// Just bail out.
		return;
		}
		// We now have a database open. Begin a transaction.
		permissions.beginTransaction();
		try {
		if (needToCreateTables) {
		// Create the tables. Note that this creates the
		// Gears tables for the permissions DB schema version 2.
		// The Gears schema upgrade process will take care of the rest.
		// First, the storage access table.
		SQLiteStatement statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS " +
		GEARS_STORAGE_ACCESS_TABLE_NAME +
		" (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Next the location access table.
		statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS " +
		GEARS_LOCATION_ACCESS_TABLE_NAME +
		" (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Finally, the schema version table.
		statement = permissions.compileStatement(
		"CREATE TABLE IF NOT EXISTS " +
		GEARS_SCHEMA_VERSION_TABLE_NAME +
		" (Name TEXT UNIQUE, Value)");
		statement.execute();
		// Set the schema version to 2.
		ContentValues schema = new ContentValues();
		schema.put("Name", "Version");
		schema.put("Value", 2);
		permissions.insert(GEARS_SCHEMA_VERSION_TABLE_NAME, null,
		schema);
		}

		ContentValues permissionValues = new ContentValues();

		for (String url : sGearsWhiteList) {
		permissionValues.put("Name", url);
		permissionValues.put("Value", gearsPermission);
		permissions.replace(GEARS_LOCATION_ACCESS_TABLE_NAME, null,
		permissionValues);
		permissionValues.clear();
		}
		// Commit the transaction.
		permissions.setTransactionSuccessful();
		} catch (SQLiteException e) {
		if (LOGV_ENABLED) {
		Log.v(LOGTAG, "Could not set the Gears permissions: " +
		e.getMessage());
		}
		} finally {
		permissions.endTransaction();
		permissions.close();
		}
		}
		/* Post a SYNC message to handle syncing the native settings. */
		private synchronized void postSync() {
		// Only post if a sync is not pending