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package com.nullwire.trace;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.connectbot.R;
import android.app.AlertDialog;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
public class ExceptionHandler {
public static String TAG = "com.nullwire.trace.ExceptionsHandler";
private static String[] stackTraceFileList = null;
/**
* @param context
*/
public static void checkForTraces(final Context context) {
new Thread(new Runnable() {
public void run() {
String[] stackTraces = searchForStackTraces(context);
if (stackTraces != null && stackTraces.length > 0) {
Log.d(TAG, "number of stack traces: " + stackTraces.length);
submissionHandler.sendMessage(
submissionHandler.obtainMessage(-1, context));
}
}
}).start();
}
/**
* @param context
*/
private static void getPackageInfo(Context context) {
// Get information about the Package
PackageManager pm = context.getPackageManager();
try {
PackageInfo pi;
// Version
pi = pm.getPackageInfo(context.getPackageName(), 0);
// Package name
G.APP_PACKAGE = pi.packageName;
// Version information
G.APP_VERSION = pi.versionName;
G.APP_DESCRIPTION = context.getString(R.string.msg_version);
// Files dir for storing the stack traces
G.FILES_PATH = context.getFilesDir().getAbsolutePath();
} catch (NameNotFoundException e) {
e.printStackTrace();
}
Log.d(TAG, "APP_VERSION: " + G.APP_VERSION);
Log.d(TAG, "APP_PACKAGE: " + G.APP_PACKAGE);
Log.d(TAG, "FILES_PATH: " + G.FILES_PATH);
Log.d(TAG, "URL: " + G.URL);
}
public static void register(Context context) {
Log.i(TAG, "Registering default exceptions handler");
new Thread() {
@Override
public void run() {
// Register default exceptions handler
Thread.setDefaultUncaughtExceptionHandler(new DefaultExceptionHandler());
}
}.start();
}
/**
* Search for stack trace files.
*
* @return
*/
private static String[] searchForStackTraces(Context context) {
if (stackTraceFileList != null && stackTraceFileList.length > 0)
return stackTraceFileList;
if (context == null)
return null;
if (G.FILES_PATH == null)
getPackageInfo(context);
File dir = new File(G.FILES_PATH + "/");
// Try to create the files folder if it doesn't exist
dir.mkdir();
// Filter for ".stacktrace" files
FilenameFilter filter = new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".stacktrace");
}
};
return (stackTraceFileList = dir.list(filter));
}
private static Handler submissionHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
Context context = (Context) msg.obj;
ExceptionClickListener clickListener = new ExceptionClickListener(context);
new AlertDialog.Builder(context)
.setMessage(R.string.exceptions_submit_message)
.setPositiveButton(android.R.string.yes, clickListener)
.setNegativeButton(android.R.string.no, clickListener)
.create().show();
}
};
/**
* Look into the files folder to see if there are any "*.stacktrace" files.
* If any are present, submit them to the trace server.
*/
public static void submitStackTraces(Context context) {
if (context == null)
return;
try {
Log.d(TAG, "Looking for exceptions in: " + G.FILES_PATH);
String[] list = searchForStackTraces(context);
if (list != null && list.length > 0) {
Log.d(TAG, "Found " + list.length + " stacktrace(s)");
StringBuilder contents = new StringBuilder();
for (int i = 0; i < list.length; i++) {
String filePath = G.FILES_PATH + "/" + list[i];
// Extract the version from the filename:
// "packagename-version-...."
String version = list[i].split("-")[0];
Log.d(TAG, "Stacktrace in file '" + filePath
+ "' belongs to version " + version);
// Read contents of stacktrace
contents.setLength(0);
BufferedReader input;
try {
input = new BufferedReader(new FileReader(filePath));
} catch (FileNotFoundException fnf) {
continue;
}
String line = null;
while ((line = input.readLine()) != null) {
contents.append(line);
contents.append(System.getProperty("line.separator"));
}
input.close();
String stacktrace;
stacktrace = contents.toString();
Log.d(TAG, "Transmitting stack trace: " + stacktrace);
// Transmit stack trace with POST request
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(G.URL);
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("package_name", G.APP_PACKAGE));
nvps.add(new BasicNameValuePair("package_version", version));
nvps.add(new BasicNameValuePair("stacktrace", stacktrace));
httpPost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
// We don't care about the response, so we just hope it went
// well and on with it
httpClient.execute(httpPost);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
removeStackTraces(context);
}
}
public synchronized static void removeStackTraces(Context context) {
if (context == null)
return;
try {
String[] list = searchForStackTraces(context);
if (list == null)
return;
for (int i = 0; i < list.length; i++) {
File file = new File(G.FILES_PATH + "/" + list[i]);
file.delete();
}
stackTraceFileList = null;
} catch (Exception e) {
e.printStackTrace();
}
}
}
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