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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
commitd83a98f4ce9cfa908f5c54bbd70f03eec07e7553 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /core/java/android/webkit/SslErrorHandler.java
parent076357b8567458d4b6dfdcf839ef751634cd2bfb (diff)
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auto import from //depot/cupcake/@135843
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-rw-r--r--core/java/android/webkit/SslErrorHandler.java255
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diff --git a/core/java/android/webkit/SslErrorHandler.java b/core/java/android/webkit/SslErrorHandler.java
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--- a/core/java/android/webkit/SslErrorHandler.java
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-/*
- * Copyright (C) 2007 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 junit.framework.Assert;
-
-import android.net.http.SslError;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.util.Config;
-import android.util.Log;
-
-import java.util.LinkedList;
-import java.util.ListIterator;
-
-/**
- * SslErrorHandler: class responsible for handling SSL errors. This class is
- * passed as a parameter to BrowserCallback.displaySslErrorDialog and is meant
- * to receive the user's response.
- */
-public class SslErrorHandler extends Handler {
- /* One problem here is that there may potentially be multiple SSL errors
- * coming from mutiple loaders. Therefore, we keep a queue of loaders
- * that have SSL-related problems and process errors one by one in the
- * order they were received.
- */
-
- private static final String LOGTAG = "network";
-
- /**
- * Network.
- */
- private Network mNetwork;
-
- /**
- * Queue of loaders that experience SSL-related problems.
- */
- private LinkedList<LoadListener> mLoaderQueue;
-
- /**
- * SSL error preference table.
- */
- private Bundle mSslPrefTable;
-
- // Message id for handling the response
- private final int HANDLE_RESPONSE = 100;
-
- @Override
- public void handleMessage(Message msg) {
- switch (msg.what) {
- case HANDLE_RESPONSE:
- handleSslErrorResponse(msg.arg1 == 1);
- fastProcessQueuedSslErrors();
- break;
- }
- }
-
- /**
- * Creates a new error handler with an empty loader queue.
- */
- /* package */ SslErrorHandler(Network network) {
- mNetwork = network;
-
- mLoaderQueue = new LinkedList<LoadListener>();
- mSslPrefTable = new Bundle();
- }
-
- /**
- * Saves this handler's state into a map.
- * @return True iff succeeds.
- */
- /* package */ boolean saveState(Bundle outState) {
- boolean success = (outState != null);
- if (success) {
- // TODO?
- outState.putBundle("ssl-error-handler", mSslPrefTable);
- }
-
- return success;
- }
-
- /**
- * Restores this handler's state from a map.
- * @return True iff succeeds.
- */
- /* package */ boolean restoreState(Bundle inState) {
- boolean success = (inState != null);
- if (success) {
- success = inState.containsKey("ssl-error-handler");
- if (success) {
- mSslPrefTable = inState.getBundle("ssl-error-handler");
- }
- }
-
- return success;
- }
-
- /**
- * Clears SSL error preference table.
- */
- /* package */ synchronized void clear() {
- mSslPrefTable.clear();
- }
-
- /**
- * Resets the SSL error handler, removes all loaders that
- * share the same BrowserFrame.
- */
- /* package */ synchronized void reset(BrowserFrame frame) {
- ListIterator<LoadListener> i = mLoaderQueue.listIterator(0);
- while (i.hasNext()) {
- LoadListener loader = i.next();
- if (frame == loader.getFrame()) {
- i.remove();
- }
- }
- }
-
- /**
- * Handles SSL error(s) on the way up to the user.
- */
- /* package */ synchronized void handleSslErrorRequest(LoadListener loader) {
- if (Config.LOGV) {
- Log.v(LOGTAG, "SslErrorHandler.handleSslErrorRequest(): " +
- "url=" + loader.url());
- }
-
- if (!loader.cancelled()) {
- mLoaderQueue.offer(loader);
- if (loader == mLoaderQueue.peek()) {
- fastProcessQueuedSslErrors();
- }
- }
- }
-
- /**
- * Processes queued SSL-error confirmation requests in
- * a tight loop while there is no need to ask the user.
- */
- /* package */void fastProcessQueuedSslErrors() {
- while (processNextLoader());
- }
-
- /**
- * Processes the next loader in the queue.
- * @return True iff should proceed to processing the
- * following loader in the queue
- */
- private synchronized boolean processNextLoader() {
- LoadListener loader = mLoaderQueue.peek();
- if (loader != null) {
- // if this loader has been cancelled
- if (loader.cancelled()) {
- // go to the following loader in the queue
- return true;
- }
-
- SslError error = loader.sslError();
-
- if (Config.DEBUG) {
- Assert.assertNotNull(error);
- }
-
- int primary = error.getPrimaryError();
- String host = loader.host();
-
- if (Config.DEBUG) {
- Assert.assertTrue(host != null && primary != 0);
- }
-
- if (mSslPrefTable.containsKey(host)) {
- if (primary <= mSslPrefTable.getInt(host)) {
- handleSslErrorResponse(true);
- return true;
- }
- }
-
- // if we do not have information on record, ask
- // the user (display a dialog)
- CallbackProxy proxy = loader.getFrame().getCallbackProxy();
- proxy.onReceivedSslError(this, error);
- }
-
- // the queue must be empty, stop
- return false;
- }
-
- /**
- * Proceed with the SSL certificate.
- */
- public void proceed() {
- sendMessage(obtainMessage(HANDLE_RESPONSE, 1, 0));
- }
-
- /**
- * Cancel this request and all pending requests for the WebView that had
- * the error.
- */
- public void cancel() {
- sendMessage(obtainMessage(HANDLE_RESPONSE, 0, 0));
- }
-
- /**
- * Handles SSL error(s) on the way down from the user.
- */
- /* package */ synchronized void handleSslErrorResponse(boolean proceed) {
- LoadListener loader = mLoaderQueue.poll();
- if (Config.DEBUG) {
- Assert.assertNotNull(loader);
- }
-
- if (Config.LOGV) {
- Log.v(LOGTAG, "SslErrorHandler.handleSslErrorResponse():"
- + " proceed: " + proceed
- + " url:" + loader.url());
- }
-
- if (!loader.cancelled()) {
- if (proceed) {
- // update the user's SSL error preference table
- int primary = loader.sslError().getPrimaryError();
- String host = loader.host();
-
- if (Config.DEBUG) {
- Assert.assertTrue(host != null && primary != 0);
- }
- boolean hasKey = mSslPrefTable.containsKey(host);
- if (!hasKey ||
- primary > mSslPrefTable.getInt(host)) {
- mSslPrefTable.putInt(host, new Integer(primary));
- }
-
- loader.handleSslErrorResponse(proceed);
- } else {
- loader.handleSslErrorResponse(proceed);
- mNetwork.resetHandlersAndStopLoading(loader.getFrame());
- }
- }
- }
-}