/*
* Copyright (C) 2008 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;
import android.content.pm.PackageStats;
import android.net.LocalSocketAddress;
import android.net.LocalSocket;
import android.util.Config;
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
class Installer {
private static final String TAG = "Installer";
InputStream mIn;
OutputStream mOut;
LocalSocket mSocket;
byte buf[] = new byte[1024];
int buflen = 0;
private boolean connect() {
if (mSocket != null) {
return true;
}
Log.i(TAG, "connecting...");
try {
mSocket = new LocalSocket();
LocalSocketAddress address = new LocalSocketAddress(
"installd", LocalSocketAddress.Namespace.RESERVED);
mSocket.connect(address);
mIn = mSocket.getInputStream();
mOut = mSocket.getOutputStream();
} catch (IOException ex) {
disconnect();
return false;
}
return true;
}
private void disconnect() {
Log.i(TAG,"disconnecting...");
try {
if (mSocket != null) mSocket.close();
} catch (IOException ex) { }
try {
if (mIn != null) mIn.close();
} catch (IOException ex) { }
try {
if (mOut != null) mOut.close();
} catch (IOException ex) { }
mSocket = null;
mIn = null;
mOut = null;
}
private boolean readBytes(byte buffer[], int len) {
int off = 0, count;
if (len < 0) return false;
while (off != len) {
try {
count = mIn.read(buffer, off, len - off);
if (count <= 0) {
Log.e(TAG, "read error " + count);
break;
}
off += count;
} catch (IOException ex) {
Log.e(TAG,"read exception");
break;
}
}
// Log.i(TAG, "read "+len+" bytes");
if (off == len) return true;
disconnect();
return false;
}
private boolean readReply() {
int len;
buflen = 0;
if (!readBytes(buf, 2)) return false;
len = (((int) buf[0]) & 0xff) | ((((int) buf[1]) & 0xff) << 8);
if ((len < 1) || (len > 1024)) {
Log.e(TAG,"invalid reply length ("+len+")");
disconnect();
return false;
}
if (!readBytes(buf, len)) return false;
buflen = len;
return true;
}
private boolean writeCommand(String _cmd) {
byte[] cmd = _cmd.getBytes();
int len = cmd.length;
if ((len < 1) || (len > 1024)) return false;
buf[0] = (byte) (len & 0xff);
buf[1] = (byte) ((len >> 8) & 0xff);
try {
mOut.write(buf, 0, 2);
mOut.write(cmd, 0, len);
} catch (IOException ex) {
Log.e(TAG,"write error");
disconnect();
return false;
}
return true;
}
private synchronized String transaction(String cmd) {
if (!connect()) {
Log.e(TAG, "connection failed");
return "-1";
}
if (!writeCommand(cmd)) {
/* If installd died and restarted in the background
* (unlikely but possible) we'll fail on the next
* write (this one). Try to reconnect and write
* the command one more time before giving up.
*/
Log.e(TAG, "write command failed? reconnect!");
if (!connect() || !writeCommand(cmd)) {
return "-1";
}
}
// Log.i(TAG,"send: '"+cmd+"'");
if (readReply()) {
String s = new String(buf, 0, buflen);
// Log.i(TAG,"recv: '"+s+"'");
return s;
} else {
// Log.i(TAG,"fail");
return "-1";
}
}
private int execute(String cmd) {
String res = transaction(cmd);
try {
return Integer.parseInt(res);
} catch (NumberFormatException ex) {
return -1;
}
}
public int install(String name, int uid, int gid) {
StringBuilder builder = new StringBuilder("install");
builder.append(' ');
builder.append(name);
builder.append(' ');
builder.append(uid);
builder.append(' ');
builder.append(gid);
return execute(builder.toString());
}
public int dexopt(String apkPath, int uid, boolean isPublic) {
StringBuilder builder = new StringBuilder("dexopt");
builder.append(' ');
builder.append(apkPath);
builder.append(' ');
builder.append(uid);
builder.append(isPublic ? " 1" : " 0");
return execute(builder.toString());
}
public int movedex(String srcPath, String dstPath) {
StringBuilder builder = new StringBuilder("movedex");
builder.append(' ');
builder.append(srcPath);
builder.append(' ');
builder.append(dstPath);
return execute(builder.toString());
}
public int rmdex(String codePath) {
StringBuilder builder = new StringBuilder("rmdex");
builder.append(' ');
builder.append(codePath);
return execute(builder.toString());
}
public int remove(String name) {
StringBuilder builder = new StringBuilder("remove");
builder.append(' ');
builder.append(name);
return execute(builder.toString());
}
public int deleteCacheFiles(String name) {
StringBuilder builder = new StringBuilder("rmcache");
builder.append(' ');
builder.append(name);
return execute(builder.toString());
}
public int clearUserData(String name) {
StringBuilder builder = new StringBuilder("rmuserdata");
builder.append(' ');
builder.append(name);
return execute(builder.toString());
}
public boolean ping() {
if (execute("ping") < 0) {
return false;
} else {
return true;
}
}
public int freeCache(long freeStorageSize) {
StringBuilder builder = new StringBuilder("freecache");
builder.append(' ');
builder.append(String.valueOf(freeStorageSize));
return execute(builder.toString());
}
public int setForwardLockPerm(String packageName, int gid) {
StringBuilder builder = new StringBuilder("protect");
builder.append(' ');
builder.append(packageName);
builder.append(' ');
builder.append(gid);
return execute(builder.toString());
}
public int getSizeInfo(String pkgName, String apkPath,
String fwdLockApkPath, PackageStats pStats) {
StringBuilder builder = new StringBuilder("getsize");
builder.append(' ');
builder.append(pkgName);
builder.append(' ');
builder.append(apkPath);
builder.append(' ');
builder.append(fwdLockApkPath != null ? fwdLockApkPath : "!");
String s = transaction(builder.toString());
String res[] = s.split(" ");
if((res == null) || (res.length != 4)) {
return -1;
}
try {
pStats.codeSize = Long.parseLong(res[1]);
pStats.dataSize = Long.parseLong(res[2]);
pStats.cacheSize = Long.parseLong(res[3]);
return Integer.parseInt(res[0]);
} catch (NumberFormatException e) {
return -1;
}
}
}
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