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Commit c6e97f55 authored by Geremy Condra's avatar Geremy Condra Committed by Android Git Automerger
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am d4b1d9cf: Merge changes I4859c8db,I7643024d

# Via Android (Google) Code Review (1) and Geremy Condra (1)
* commit 'd4b1d9cf':
  Add the TZInfo updater and relevant intent.
  Fix ConfigUpdater for binary files.
parents 5a2f6bee d4b1d9cf
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+6 −0
Original line number Diff line number Diff line
@@ -2290,6 +2290,12 @@
            </intent-filter>
        </receiver>

        <receiver android:name="com.android.server.updates.TZInfoInstallReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.UPDATE_TZINFO" />
            </intent-filter>
        </receiver>

        <receiver android:name="com.android.server.MasterClearReceiver"
            android:permission="android.permission.MASTER_CLEAR"
            android:priority="100" >
+13 −15
Original line number Diff line number Diff line
@@ -77,7 +77,7 @@ public class ConfigUpdateInstallReceiver extends BroadcastReceiver {
                    // get the certificate from Settings.Secure
                    X509Certificate cert = getCert(context.getContentResolver());
                    // get the content path from the extras
                    String altContent = getAltContent(intent);
                    byte[] altContent = getAltContent(intent);
                    // get the version from the extras
                    int altVersion = getVersionFromIntent(intent);
                    // get the previous value from the extras
@@ -172,28 +172,26 @@ public class ConfigUpdateInstallReceiver extends BroadcastReceiver {
        }
    }

    private String getAltContent(Intent i) throws IOException {
        String contents = IoUtils.readFileAsString(getContentFromIntent(i));
        return contents.trim();
    private byte[] getAltContent(Intent i) throws IOException {
        return IoUtils.readFileAsByteArray(getContentFromIntent(i));
    }

    private String getCurrentContent() {
    private byte[] getCurrentContent() {
        try {
            return IoUtils.readFileAsString(updateContent.getCanonicalPath()).trim();
            return IoUtils.readFileAsByteArray(updateContent.getCanonicalPath());
        } catch (IOException e) {
            Slog.i(TAG, "Failed to read current content, assuming first update!");
            return null;
        }
    }

    private static String getCurrentHash(String content) {
    private static String getCurrentHash(byte[] content) {
        if (content == null) {
            return "0";
        }
        try {
            MessageDigest dgst = MessageDigest.getInstance("SHA512");
            byte[] encoded = content.getBytes();
            byte[] fingerprint = dgst.digest(encoded);
            byte[] fingerprint = dgst.digest(content);
            return IntegralToString.bytesToHexString(fingerprint, false);
        } catch (NoSuchAlgorithmException e) {
            throw new AssertionError(e);
@@ -213,17 +211,17 @@ public class ConfigUpdateInstallReceiver extends BroadcastReceiver {
        return current.equals(required);
    }

    private boolean verifySignature(String content, int version, String requiredPrevious,
    private boolean verifySignature(byte[] content, int version, String requiredPrevious,
                                   String signature, X509Certificate cert) throws Exception {
        Signature signer = Signature.getInstance("SHA512withRSA");
        signer.initVerify(cert);
        signer.update(content.getBytes());
        signer.update(content);
        signer.update(Long.toString(version).getBytes());
        signer.update(requiredPrevious.getBytes());
        return signer.verify(Base64.decode(signature.getBytes(), Base64.DEFAULT));
    }

    private void writeUpdate(File dir, File file, String content) throws IOException {
    private void writeUpdate(File dir, File file, byte[] content) throws IOException {
        FileOutputStream out = null;
        File tmp = null;
        try {
@@ -240,7 +238,7 @@ public class ConfigUpdateInstallReceiver extends BroadcastReceiver {
            tmp.setReadable(true, false);
            // write to it
            out = new FileOutputStream(tmp);
            out.write(content.getBytes());
            out.write(content);
            // sync to disk
            out.getFD().sync();
            // atomic rename
@@ -255,8 +253,8 @@ public class ConfigUpdateInstallReceiver extends BroadcastReceiver {
        }
    }

    private void install(String content, int version) throws IOException {
    protected void install(byte[] content, int version) throws IOException {
        writeUpdate(updateDir, updateContent, content);
        writeUpdate(updateDir, updateVersion, Long.toString(version));
        writeUpdate(updateDir, updateVersion, Long.toString(version).getBytes());
    }
}
+34 −0
Original line number Diff line number Diff line
/*
 * Copyright (C) 2013 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.server.updates;

import android.util.Base64;
import android.util.Slog;

import java.io.IOException;

public class TZInfoInstallReceiver extends ConfigUpdateInstallReceiver {

    public TZInfoInstallReceiver() {
        super("/data/misc/zoneinfo/", "tzdata", "metadata/", "version");
    }

    @Override
    protected void install(byte[] encodedContent, int version) throws IOException {
        super.install(Base64.decode(encodedContent, Base64.DEFAULT), version);
    }
}