aboutsummaryrefslogtreecommitdiffstats
path: root/src/main/java/de/pixart/messenger/ui/UpdaterActivity.java
blob: 0a35288d7ee8ff4349f5320f766bf05a72eda3b7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
package de.pixart.messenger.ui;

import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.persistance.DatabaseBackend;
import de.pixart.messenger.services.UpdaterWebService;

public class UpdaterActivity extends Activity {

    String appURI = "";
    private UpdateReceiver receiver = null;
    private int versionCode = 0;
    private DownloadManager downloadManager;
    private long downloadReference;
    private String FileName = "update.apk";
    //broadcast receiver to get notification about ongoing downloads

    BroadcastReceiver downloadReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            //check if the broadcast message is for our Enqueued download
            long referenceId = intent.getExtras().getLong(DownloadManager.EXTRA_DOWNLOAD_ID);
            if (downloadReference == referenceId) {
                File file = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), FileName);
                //start the installation of the latest version
                Intent installIntent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
                installIntent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
                installIntent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true);
                installIntent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
                installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(installIntent);

                UpdaterActivity.this.finish();
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //set activity
        setContentView(R.layout.activity_updater);
        TextView textView = (TextView) findViewById(R.id.updater);
        textView.setText(R.string.update_info);

        //Broadcast receiver for our Web Request
        IntentFilter filter = new IntentFilter(UpdateReceiver.PROCESS_RESPONSE);
        filter.addCategory(Intent.CATEGORY_DEFAULT);
        receiver = new UpdateReceiver();
        registerReceiver(receiver, filter);

        //Broadcast receiver for the download manager (download complete)
        registerReceiver(downloadReceiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

        //check of internet is available before making a web service request
        if (isNetworkAvailable(this)) {
            Intent msgIntent = new Intent(this, UpdaterWebService.class);
            msgIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            msgIntent.putExtra(UpdaterWebService.REQUEST_STRING, Config.UPDATE_URL);

            Toast.makeText(getApplicationContext(),
                    getText(R.string.checking_for_updates),
                    Toast.LENGTH_SHORT).show();
            startService(msgIntent);
        }
    }

    private void ExportDatabase() throws IOException {

        // Get hold of the db:
        InputStream myInput = new FileInputStream(this.getDatabasePath(DatabaseBackend.DATABASE_NAME));

        // Set the output folder on the SDcard
        File directory = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pix-Art Messenger/.Database/");

        // Create the folder if it doesn't exist:
        if (!directory.exists()) {
            directory.mkdirs();
        }

        // Set the output file stream up:
        OutputStream myOutput = new FileOutputStream(directory.getPath() + "/Database.bak");

        // Transfer bytes from the input file to the output file
        byte[] buffer = new byte[1024];
        int length;
        while ((length = myInput.read(buffer)) > 0) {
            myOutput.write(buffer, 0, length);
        }

        // Close and clear the streams
        myOutput.flush();
        myOutput.close();
        myInput.close();
    }


    @Override
    public void onDestroy() {
        //unregister your receivers
        this.unregisterReceiver(receiver);
        this.unregisterReceiver(downloadReceiver);
        super.onDestroy();
        //enable touch events
        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
    }

    @Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        super.onSaveInstanceState(savedInstanceState);
    }

    @Override
    public void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
    }

    //check for internet connection
    private boolean isNetworkAvailable(Context context) {
        ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (connectivity != null) {
            NetworkInfo[] info = connectivity.getAllNetworkInfo();
            if (info != null) {
                for (int i = 0; i < info.length; i++) {
                    if (info[i].getState() == NetworkInfo.State.CONNECTED) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    public boolean isStoragePermissionGranted() {
        if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED) {
                return true;
            } else {

                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                return false;
            }
        } else { //permission is automatically granted on sdk<23 upon installation
            return true;
        }
    }

    //show warning on back pressed
    @Override
    public void onBackPressed() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage(R.string.cancel_update)
                .setCancelable(false)
                .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        UpdaterActivity.this.finish();
                    }
                })
                .setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
    }

    //broadcast receiver to get notification when the web request finishes
    public class UpdateReceiver extends BroadcastReceiver {

        public static final String PROCESS_RESPONSE = "de.pixart.messenger.intent.action.PROCESS_RESPONSE";

        @Override
        public void onReceive(Context context, Intent intent) {

            //disable touch events
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
                    WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);

            String responseMessage = intent.getStringExtra(UpdaterWebService.RESPONSE_MESSAGE);

            if (responseMessage == "" || responseMessage.isEmpty() || responseMessage == null) {
                Toast.makeText(getApplicationContext(),
                        getText(R.string.failed),
                        Toast.LENGTH_LONG).show();
                UpdaterActivity.this.finish();
            } else {
                //parse the JSON reponse
                JSONObject reponseObj;

                try {
                    //if the response was successful check further
                    reponseObj = new JSONObject(responseMessage);
                    boolean success = reponseObj.getBoolean("success");
                    if (success) {
                        if (isStoragePermissionGranted()) {
                            //start backing up database
                            try {
                                ExportDatabase();
                            } catch (IOException e) {
                                e.printStackTrace();
                            }
                        }
                        //Overall information about the contents of a package
                        //This corresponds to all of the information collected from AndroidManifest.xml.
                        PackageInfo pInfo = null;
                        try {
                            pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
                        } catch (PackageManager.NameNotFoundException e) {
                            e.printStackTrace();
                        }
                        //get the app version Name for display
                        final String versionName = pInfo.versionName;
                        final int versionCode = pInfo.versionCode;
                        //get the latest version from the JSON string
                        int latestVersionCode = reponseObj.getInt("latestVersionCode");
                        String latestVersion = reponseObj.getString("latestVersion");
                        String filesize = reponseObj.getString("filesize");
                        String changelog = reponseObj.getString("changelog");
                        //get the lastest application URI from the JSON string
                        appURI = reponseObj.getString("appURI");
                        //check if we need to upgrade?
                        if (latestVersionCode > versionCode) {
                            //delete old downloaded version files
                            File dir = new File(getExternalFilesDir(null), Environment.DIRECTORY_DOWNLOADS);
                            if (dir.isDirectory()) {
                                String[] children = dir.list();
                                for (int i = 0; i < children.length; i++) {
                                    new File(dir, children[i]).delete();
                                }
                            }
                            //enable touch events
                            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);

                            //oh yeah we do need an upgrade, let the user know send an alert message
                            AlertDialog.Builder builder = new AlertDialog.Builder(UpdaterActivity.this);
                            builder.setCancelable(false);

                            String UpdateMessageInfo = getResources().getString(R.string.update_available);
                            builder.setMessage(String.format(UpdateMessageInfo, latestVersion, filesize, versionName, changelog))
                                    .setPositiveButton(R.string.update, new DialogInterface.OnClickListener() {
                                        //if the user agrees to upgrade
                                        public void onClick(DialogInterface dialog, int id) {
                                            //disable touch events
                                            getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
                                                    WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
                                            //ask for permissions on devices >= SDK 23
                                            if (isStoragePermissionGranted()) {
                                                //start downloading the file using the download manager
                                                downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
                                                Uri Download_Uri = Uri.parse(appURI);
                                                DownloadManager.Request request = new DownloadManager.Request(Download_Uri);
                                                //request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
                                                //request.setAllowedOverRoaming(false);
                                                request.setTitle("Pix-Art Messenger Update");
                                                request.setDestinationInExternalFilesDir(UpdaterActivity.this, Environment.DIRECTORY_DOWNLOADS, FileName);
                                                downloadReference = downloadManager.enqueue(request);
                                                Toast.makeText(getApplicationContext(),
                                                        getText(R.string.download_started),
                                                        Toast.LENGTH_LONG).show();
                                            }
                                        }
                                    })
                                    .setNeutralButton(R.string.changelog, new DialogInterface.OnClickListener() {
                                        //open link to changelog
                                        public void onClick(DialogInterface dialog, int id) {
                                            Uri uri = Uri.parse("https://github.com/kriztan/Conversations/blob/development/CHANGELOG.md"); // missing 'http://' will cause crashed
                                            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                                            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                            startActivity(intent);
                                            //restart updater to show dialog again after coming back after opening changelog
                                            recreate();
                                        }
                                    })
                                    .setNegativeButton(R.string.remind_later, new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                            // User cancelled the dialog
                                            UpdaterActivity.this.finish();
                                        }
                                    });
                            //show the alert message
                            builder.create().show();
                        } else {
                            Toast.makeText(getApplicationContext(),
                                    getText(R.string.no_update_available),
                                    Toast.LENGTH_SHORT).show();
                            UpdaterActivity.this.finish();
                        }
                    } else {
                        Toast.makeText(getApplicationContext(),
                                getText(R.string.failed),
                                Toast.LENGTH_LONG).show();
                        UpdaterActivity.this.finish();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}