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1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.providers.calendar;
18 
19 import android.app.Activity;
20 import android.content.Intent;
21 import android.media.MediaScannerConnection;
22 import android.net.Uri;
23 import android.os.AsyncTask;
24 import android.os.Bundle;
25 import android.os.Environment;
26 import android.util.Log;
27 import android.view.View;
28 import android.view.Window;
29 import android.view.View.OnClickListener;
30 import android.widget.Button;
31 import android.widget.TextView;
32 
33 import java.io.File;
34 import java.io.FileInputStream;
35 import java.io.FileOutputStream;
36 import java.io.IOException;
37 import java.io.InputStream;
38 import java.util.zip.ZipEntry;
39 import java.util.zip.ZipOutputStream;
40 
41 /**
42  * Prompts the user before copying their calendar database to the SD card.
43  *
44  */
45 public class CalendarDebugActivity extends Activity implements OnClickListener {
46     private static String TAG = "CalendarDebugActivity";
47     private Button mConfirmButton;
48     private Button mCancelButton;
49     private Button mDeleteButton;
50     private TextView mTextView;
51 
52     private static final String OUT_FILE = "calendar.db.zip";
53     private static final String MIME_TYPE = "application/zip";
54 
onCreate(Bundle savedInstanceState)55     protected void onCreate(Bundle savedInstanceState) {
56         // Be sure to call the super class.
57         super.onCreate(savedInstanceState);
58 
59         requestWindowFeature(Window.FEATURE_LEFT_ICON);
60 
61         setContentView(R.layout.dialog_activity);
62 
63         getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
64                 android.R.drawable.ic_dialog_alert);
65 
66         mConfirmButton = (Button) findViewById(R.id.confirm);
67         mCancelButton = (Button) findViewById(R.id.cancel);
68         mDeleteButton = (Button) findViewById(R.id.delete);
69         updateDeleteButton();
70     }
71 
updateDeleteButton()72     private void updateDeleteButton() {
73         final boolean fileExist =
74             new File(Environment.getExternalStorageDirectory(), OUT_FILE).exists();
75         mDeleteButton.setEnabled(fileExist);
76     }
77 
78     @Override
onClick(View v)79     public void onClick(View v) {
80         switch (v.getId()) {
81             case R.id.confirm:
82                 mConfirmButton.setEnabled(false);
83                 mCancelButton.setEnabled(false);
84                 new DumpDbTask().execute();
85                 break;
86             case R.id.delete:
87                 cleanup();
88                 updateDeleteButton();
89                 break;
90             case R.id.cancel:
91                 finish();
92                 break;
93         }
94     }
95 
cleanup()96     private void cleanup() {
97         Log.i(TAG, "Deleting " + OUT_FILE);
98         File outFile = new File(Environment.getExternalStorageDirectory(), OUT_FILE);
99         outFile.delete();
100     }
101 
102     private class DumpDbTask extends AsyncTask<Void, Void, File> {
103 
104         /**
105          * Starts spinner while task is running.
106          */
107         @Override
onPreExecute()108         protected void onPreExecute() {
109             setProgressBarIndeterminateVisibility(true);
110         }
111 
doInBackground(Void... params)112         protected File doInBackground(Void... params) {
113             InputStream is = null;
114             ZipOutputStream os = null;
115 
116             try {
117                 File path = Environment.getExternalStorageDirectory();
118                 File outFile = new File(path, OUT_FILE);
119                 outFile.delete();
120                 Log.i(TAG, "Outfile=" + outFile.getAbsolutePath());
121 
122                 final File inFile = getDatabasePath("calendar.db");
123                 is = new FileInputStream(inFile);
124 
125                 os = new ZipOutputStream(new FileOutputStream(outFile));
126                 os.putNextEntry(new ZipEntry(inFile.getName()));
127 
128                 byte[] buf = new byte[4096];
129                 int totalLen = 0;
130                 while (true) {
131                     int len = is.read(buf);
132                     if (len <= 0) {
133                         break;
134                     }
135                     os.write(buf, 0, len);
136                     totalLen += len;
137                 }
138                 os.closeEntry();
139 
140                 Log.i(TAG, "bytes read " + totalLen);
141                 os.flush();
142                 os.close();
143                 os = null;
144 
145                 // Tell the media scanner about the new file so that it is
146                 // immediately available to the user.
147                 MediaScannerConnection.scanFile(CalendarDebugActivity.this, new String[] {
148                     outFile.toString()
149                 }, new String[] {
150                     MIME_TYPE
151                 }, null);
152                 return outFile;
153 
154             } catch (IOException e) {
155                 Log.i(TAG, "Error " + e.toString());
156             } finally {
157                 try {
158                     if (is != null) {
159                         is.close();
160                     }
161                     if (os != null) {
162                         os.close();
163                     }
164                 } catch (IOException e) {
165                     Log.i(TAG, "Error " + e.toString());
166                 }
167             }
168             return null;
169         }
170 
171         /**
172          * Runs on the UI thread
173          */
174         @Override
onPostExecute(File outFile)175         protected void onPostExecute(File outFile) {
176             if (outFile != null) {
177                 emailFile(outFile);
178             }
179         }
180     }
181 
182     @Override
onActivityResult(int requestCode, int resultCode, Intent data)183     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
184         updateDeleteButton();
185         mConfirmButton.setEnabled(true);
186         mCancelButton.setEnabled(true);
187     }
188 
emailFile(File file)189     private void emailFile(File file) {
190         Log.i(TAG, "Drafting email to send " + file.getAbsolutePath());
191         Intent intent = new Intent(Intent.ACTION_SEND);
192         intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.debug_tool_email_subject));
193         intent.putExtra(Intent.EXTRA_TEXT, getString(R.string.debug_tool_email_body));
194         intent.setType(MIME_TYPE);
195         intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
196         startActivityForResult(Intent.createChooser(intent,
197                 getString(R.string.debug_tool_email_sender_picker)), 0);
198     }
199 }
200