1package eu.siacs.conversations.utils;
2
3import android.support.v7.app.AlertDialog;
4import android.content.Context;
5import android.content.SharedPreferences;
6import android.content.pm.PackageInfo;
7import android.content.pm.PackageManager;
8import android.content.pm.Signature;
9import android.preference.PreferenceManager;
10import android.util.Log;
11
12import java.io.BufferedReader;
13import java.io.FileInputStream;
14import java.io.IOException;
15import java.io.InputStreamReader;
16import java.io.OutputStream;
17import java.text.SimpleDateFormat;
18import java.util.Date;
19import java.util.List;
20import java.util.Locale;
21
22import eu.siacs.conversations.Config;
23import eu.siacs.conversations.R;
24import eu.siacs.conversations.entities.Account;
25import eu.siacs.conversations.entities.Conversation;
26import eu.siacs.conversations.entities.Message;
27import eu.siacs.conversations.services.XmppConnectionService;
28import eu.siacs.conversations.ui.XmppActivity;
29
30public class ExceptionHelper {
31
32 private static final String FILENAME = "stacktrace.txt";
33 private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
34
35 public static void init(Context context) {
36 if (!(Thread.getDefaultUncaughtExceptionHandler() instanceof ExceptionHandler)) {
37 Thread.setDefaultUncaughtExceptionHandler(new ExceptionHandler(
38 context));
39 }
40 }
41
42 public static boolean checkForCrash(XmppActivity activity) {
43 try {
44 final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
45 if (service == null) {
46 return false;
47 }
48 final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
49 boolean neverSend = preferences.getBoolean("never_send", false);
50 if (neverSend || Config.BUG_REPORTS == null) {
51 return false;
52 }
53 final Account account = AccountUtils.getFirstEnabled(service);
54 if (account == null) {
55 return false;
56 }
57 FileInputStream file = activity.openFileInput(FILENAME);
58 InputStreamReader inputStreamReader = new InputStreamReader(file);
59 BufferedReader stacktrace = new BufferedReader(inputStreamReader);
60 final StringBuilder report = new StringBuilder();
61 PackageManager pm = activity.getPackageManager();
62 PackageInfo packageInfo;
63 try {
64 packageInfo = pm.getPackageInfo(activity.getPackageName(), PackageManager.GET_SIGNATURES);
65 report.append("Version: ").append(packageInfo.versionName).append('\n');
66 report.append("Last Update: ").append(DATE_FORMAT.format(new Date(packageInfo.lastUpdateTime))).append('\n');
67 Signature[] signatures = packageInfo.signatures;
68 if (signatures != null && signatures.length >= 1) {
69 report.append("SHA-1: ").append(CryptoHelper.getFingerprintCert(packageInfo.signatures[0].toByteArray())).append('\n');
70 }
71 report.append('\n');
72 } catch (Exception e) {
73 e.printStackTrace();
74 return false;
75 }
76 String line;
77 while ((line = stacktrace.readLine()) != null) {
78 report.append(line);
79 report.append('\n');
80 }
81 file.close();
82 activity.deleteFile(FILENAME);
83 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
84 builder.setTitle(activity.getString(R.string.crash_report_title));
85 builder.setMessage(activity.getText(R.string.crash_report_message));
86 builder.setPositiveButton(activity.getText(R.string.send_now), (dialog, which) -> {
87
88 Log.d(Config.LOGTAG, "using account=" + account.getJid().asBareJid() + " to send in stack trace");
89 Conversation conversation = service.findOrCreateConversation(account, Config.BUG_REPORTS, false, true);
90 Message message = new Message(conversation, report.toString(), Message.ENCRYPTION_NONE);
91 service.sendMessage(message);
92 });
93 builder.setNegativeButton(activity.getText(R.string.send_never), (dialog, which) -> preferences.edit().putBoolean("never_send", true).apply());
94 builder.create().show();
95 return true;
96 } catch (final IOException ignored) {
97 return false;
98 }
99 }
100
101 static void writeToStacktraceFile(Context context, String msg) {
102 try {
103 OutputStream os = context.openFileOutput(FILENAME, Context.MODE_PRIVATE);
104 os.write(msg.getBytes());
105 os.flush();
106 os.close();
107 } catch (IOException ignored) {
108 }
109 }
110}