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use Java methods for setting permissions on native executables 

As of android-9, java.io.File has native methods for setting permissions,
inherited from Java 1.6.  Using these will help deal with compatibility
across devices, since some devices might not have chmod installed.
This commit is contained in:
Hans-Christoph Steiner 2015-06-08 23:21:21 -04:00
parent a3d37e8b2a
commit 73658ce3cf
2 changed files with 14 additions and 41 deletions
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15
src/org/torproject/android/service/TorResourceInstaller.java
View File

@ -8,12 +8,10 @@ import java.io.DataOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StringBufferInputStream;
import java.util.ArrayList;
import java.util.concurrent.TimeoutException;
@ -96,11 +94,13 @@ public class TorResourceInstaller implements TorServiceConstants {
outFile = new File(installFolder, OBFSCLIENT_ASSET_KEY);
shell.add(new SimpleCommand(COMMAND_RM_FORCE + outFile.getAbsolutePath())).waitForFinish();
streamToFile(is,outFile, false, true);
setExecutable(outFile);
is = context.getResources().openRawResource(R.raw.meek);
outFile = new File(installFolder, MEEK_ASSET_KEY);
shell.add(new SimpleCommand(COMMAND_RM_FORCE + outFile.getAbsolutePath())).waitForFinish();
streamToFile(is,outFile, false, true);
setExecutable(outFile);
cpuPath = "armeabi";
}
@ -111,17 +111,19 @@ public class TorResourceInstaller implements TorServiceConstants {
outFile = new File(installFolder, TOR_ASSET_KEY);
shell.add(new SimpleCommand(COMMAND_RM_FORCE + outFile.getAbsolutePath())).waitForFinish();
streamToFile(is,outFile, false, true);
setExecutable(outFile);
is = context.getAssets().open(cpuPath + "/polipo.mp3");
outFile = new File(installFolder, POLIPO_ASSET_KEY);
shell.add(new SimpleCommand(COMMAND_RM_FORCE + outFile.getAbsolutePath())).waitForFinish();
streamToFile(is,outFile, false, true);
setExecutable(outFile);
is = context.getAssets().open(cpuPath + "/xtables.mp3");
outFile = new File(installFolder, IPTABLES_ASSET_KEY);
shell.add(new SimpleCommand(COMMAND_RM_FORCE + outFile.getAbsolutePath())).waitForFinish();
streamToFile(is,outFile, false, true);
setExecutable(outFile);
return true;
}
@ -359,4 +361,11 @@ public class TorResourceInstaller implements TorServiceConstants {
}*/
private void setExecutable(File fileBin) {
fileBin.setReadable(true);
fileBin.setExecutable(true);
fileBin.setWritable(false);
fileBin.setWritable(true, true);
}
}

40
src/org/torproject/android/service/TorService.java
View File

@ -649,17 +649,12 @@ public class TorService extends Service implements TorServiceConstants, OrbotCon
appCacheHome = getDir(DIRECTORY_TOR_DATA,Application.MODE_PRIVATE);
fileTor= new File(appBinHome, TOR_ASSET_KEY);
filePolipo = new File(appBinHome, POLIPO_ASSET_KEY);
fileObfsclient = new File(appBinHome, OBFSCLIENT_ASSET_KEY);
fileMeekclient = new File(appBinHome, MEEK_ASSET_KEY);
fileTorRc = new File(appBinHome, TORRC_ASSET_KEY);
fileXtables = new File(appBinHome, IPTABLES_ASSET_KEY);
SharedPreferences prefs = TorServiceUtils.getSharedPrefs(getApplicationContext());
String version = prefs.getString(PREF_BINARY_TOR_VERSION_INSTALLED,null);
@ -678,8 +673,6 @@ public class TorService extends Service implements TorServiceConstants, OrbotCon
}
updateTorConfigFile ();
}
private boolean updateTorConfigFile () throws FileNotFoundException, IOException, TimeoutException
@ -737,28 +730,7 @@ public class TorService extends Service implements TorServiceConstants, OrbotCon
return success;
}
private boolean enableBinExec (File fileBin) throws Exception
{
logNotice(fileBin.getName() + ": PRE: Is binary exec? " + fileBin.canExecute());
if (!fileBin.canExecute())
{
logNotice("(re)Setting permission on binary: " + fileBin.getCanonicalPath());
Shell shell = Shell.startShell();
shell.add(new SimpleCommand("chmod " + CHMOD_EXE_VALUE + ' ' + fileBin.getCanonicalPath())).waitForFinish();
File fileTest = new File(fileBin.getCanonicalPath());
logNotice(fileTest.getName() + ": POST: Is binary exec? " + fileTest.canExecute());
shell.close();
}
return fileBin.canExecute();
}
private void startTor () throws Exception
{
@ -767,12 +739,6 @@ public class TorService extends Service implements TorServiceConstants, OrbotCon
if (fileTor == null)
initBinariesAndDirectories();
enableBinExec(fileTor);
enableBinExec(filePolipo);
enableBinExec(fileObfsclient);
enableBinExec(fileMeekclient);
enableBinExec(fileXtables);
logNotice(getString(R.string.status_starting_up));
sendCallbackLogMessage(getString(R.string.status_starting_up));
@ -1361,8 +1327,6 @@ public class TorService extends Service implements TorServiceConstants, OrbotCon
mCurrentStatus = STATUS_OFF;
sendCallbackStatus(mCurrentStatus);
}
}