keepass2android/src/keepass2android/PasswordActivity.cs
2013-02-23 17:45:00 +01:00

571 lines
15 KiB
C#

/*
This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
Keepass2Android is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
Keepass2Android is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Keepass2Android. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Java.Net;
using Android.Preferences;
using Java.IO;
using Android.Text;
using Android.Content.PM;
using Android.Text.Method;
using KeePassLib.Keys;
using KeePassLib.Serialization;
namespace keepass2android
{
[Activity (Label = "@string/app_name", ConfigurationChanges=ConfigChanges.Orientation|ConfigChanges.KeyboardHidden, Theme="@style/Base")]
public class PasswordActivity : LockingActivity {
bool mShowPassword = false;
public const String KEY_DEFAULT_FILENAME = "defaultFileName";
public const String KEY_FILENAME = "fileName";
private const String KEY_KEYFILE = "keyFile";
private const String KEY_SERVERUSERNAME = "serverCredUser";
private const String KEY_SERVERPASSWORD = "serverCredPwd";
private const String KEY_SERVERCREDMODE = "serverCredRememberMode";
private const String VIEW_INTENT = "android.intent.action.VIEW";
private IOConnectionInfo mIoConnection;
private String mKeyFile;
private bool mRememberKeyfile;
ISharedPreferences prefs;
public PasswordActivity (IntPtr javaReference, JniHandleOwnership transfer)
: base(javaReference, transfer)
{
}
public PasswordActivity()
{
}
static void PutIoConnectionToIntent(IOConnectionInfo ioc, Android.Content.Intent i)
{
i.PutExtra(KEY_FILENAME, ioc.Path);
i.PutExtra(KEY_SERVERUSERNAME, ioc.UserName);
i.PutExtra(KEY_SERVERPASSWORD, ioc.Password);
i.PutExtra(KEY_SERVERCREDMODE, (int)ioc.CredSaveMode);
}
public static void SetIoConnectionFromIntent(IOConnectionInfo ioc, Intent i)
{
ioc.Path = i.GetStringExtra(KEY_FILENAME);
ioc.UserName = i.GetStringExtra(KEY_SERVERUSERNAME) ?? "";
ioc.Password = i.GetStringExtra(KEY_SERVERPASSWORD) ?? "";
ioc.CredSaveMode = (IOCredSaveMode)i.GetIntExtra(KEY_SERVERCREDMODE, (int) IOCredSaveMode.NoSave);
}
public static void Launch(Activity act, String fileName, String urlToSearchFor) {
Java.IO.File dbFile = new Java.IO.File(fileName);
if ( ! dbFile.Exists() ) {
throw new Java.IO.FileNotFoundException();
}
Intent i = new Intent(act, typeof(PasswordActivity));
i.PutExtra(KEY_FILENAME, fileName);
i.PutExtra(FileSelectActivity.UrlToSearch_key, urlToSearchFor);
act.StartActivityForResult(i, 0);
}
public static void Launch(Activity act, String fileName) {
Launch(act, IOConnectionInfo.FromPath(fileName), null);
}
public static void Launch(Activity act, IOConnectionInfo ioc, String urlToSearchFor)
{
if (ioc.IsLocalFile())
{
Launch(act, ioc.Path, urlToSearchFor);
return;
}
Intent i = new Intent(act, typeof(PasswordActivity));
PutIoConnectionToIntent(ioc, i);
i.PutExtra(FileSelectActivity.UrlToSearch_key, urlToSearchFor);
act.StartActivityForResult(i, 0);
}
public void LaunchNextActivity()
{
if (String.IsNullOrEmpty(mUrlToSearchFor))
GroupActivity.Launch(this);
else
{
ShareUrlResults.Launch(this, mUrlToSearchFor);
}
}
void unloadDatabase()
{
App.getDB().Clear();
StopService(new Intent(this, typeof(QuickUnlockForegroundService)));
}
void lockDatabase()
{
SetResult(KeePass.EXIT_LOCK);
setEditText(Resource.Id.password, "");
if (App.getDB().QuickUnlockEnabled)
App.getDB().Locked = true;
else
{
unloadDatabase();
}
}
void lockAndClose()
{
lockDatabase();
Finish();
}
bool tryStartQuickUnlock()
{
if (!App.getDB().QuickUnlockEnabled)
return false;
if (App.getDB().pm.MasterKey.ContainsType(typeof(KcpPassword)) == false)
return false;
KcpPassword kcpPassword = (KcpPassword)App.getDB().pm.MasterKey.GetUserKey(typeof(KcpPassword));
String password = kcpPassword.Password.ReadString();
if (password.Length == 0)
return false;
App.getDB().Locked = true;
Intent i = new Intent(this, typeof(QuickUnlock));
PutIoConnectionToIntent(mIoConnection, i);
Android.Util.Log.Debug("DEBUG","Starting QuickUnlock");
StartActivityForResult(i,0);
return true;
}
public void StartQuickUnlockForegroundService()
{
if (App.getDB().QuickUnlockEnabled)
{
StartService(new Intent(this, typeof(QuickUnlockForegroundService)));
}
}
bool startedWithActivityResult = false;
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
startedWithActivityResult = true;
Android.Util.Log.Debug("DEBUG","PasswordActivity.OnActivityResult "+resultCode+"/"+requestCode);
if (resultCode != KeePass.EXIT_CLOSE_AFTER_SEARCH)
{
//Stop service when app activity is left
StopService(new Intent(this, typeof(CopyToClipboardService)));
}
//NOTE: original code from k eepassdroid used switch ((Android.App.Result)requestCode) { (but doesn't work here, although k eepassdroid works)
switch(resultCode) {
case KeePass.EXIT_NORMAL:
if (!tryStartQuickUnlock())
{
setEditText(Resource.Id.password, "");
;
}
break;
case KeePass.EXIT_LOCK:
if (!tryStartQuickUnlock())
{
lockAndClose();
}
break;
case KeePass.EXIT_FORCE_LOCK:
setEditText(Resource.Id.password, "");
unloadDatabase();
break;
case KeePass.EXIT_FORCE_LOCK_AND_CHANGE_DB:
unloadDatabase();
Finish();
break;
case KeePass.EXIT_CHANGE_DB:
lockAndClose();
break;
case KeePass.EXIT_CLOSE_AFTER_SEARCH:
SetResult(KeePass.EXIT_CLOSE_AFTER_SEARCH);
Finish();
break;
case KeePass.EXIT_QUICK_UNLOCK:
App.getDB().Locked = false;
LaunchNextActivity();
break;
case Android.App.Result.Ok:
if (requestCode == Intents.REQUEST_CODE_FILE_BROWSE) {
String filename = data.DataString;
if (filename != null) {
if (filename.StartsWith("file://")) {
filename = filename.Substring(7);
}
filename = URLDecoder.Decode(filename);
EditText fn = (EditText) FindViewById(Resource.Id.pass_keyfile);
fn.Text = filename;
}
}
break;
}
}
internal string mUrlToSearchFor;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Intent i = Intent;
String action = i.Action;
prefs = PreferenceManager.GetDefaultSharedPreferences(this);
mRememberKeyfile = prefs.GetBoolean(GetString(Resource.String.keyfile_key), Resources.GetBoolean(Resource.Boolean.keyfile_default));
mIoConnection = new IOConnectionInfo();
if (action != null && action.Equals(VIEW_INTENT))
{
mIoConnection.Path = i.DataString;
if (! mIoConnection.Path.Substring(0, 7).Equals("file://"))
{
//TODO: this might no longer be required as we can handle http(s) and ftp as well (but we need server credentials therefore)
Toast.MakeText(this, Resource.String.error_can_not_handle_uri, ToastLength.Long).Show();
Finish();
return;
}
mIoConnection.Path = URLDecoder.Decode(mIoConnection.Path.Substring(7, mIoConnection.Path.Length));
if (mIoConnection.Path.Length == 0)
{
// No file name
Toast.MakeText(this, Resource.String.FileNotFound, ToastLength.Long).Show();
Finish();
return;
}
File dbFile = new File(mIoConnection.Path);
if (! dbFile.Exists())
{
// File does not exist
Toast.MakeText(this, Resource.String.FileNotFound, ToastLength.Long).Show();
Finish();
return;
}
mKeyFile = getKeyFile(mIoConnection.Path);
} else
{
SetIoConnectionFromIntent(mIoConnection, i);
mKeyFile = i.GetStringExtra(KEY_KEYFILE);
if (mKeyFile == null || mKeyFile.Length == 0)
{
mKeyFile = getKeyFile(mIoConnection.Path);
}
}
this.mUrlToSearchFor = i.GetStringExtra(FileSelectActivity.UrlToSearch_key);
SetContentView(Resource.Layout.password);
populateView();
Button confirmButton = (Button)FindViewById(Resource.Id.pass_ok);
confirmButton.Click += (object sender, EventArgs e) =>
{
String pass = GetEditText(Resource.Id.password);
String key = GetEditText(Resource.Id.pass_keyfile);
if (pass.Length == 0 && key.Length == 0)
{
errorMessage(Resource.String.error_nopass);
return;
}
String fileName = GetEditText(Resource.Id.filename);
// Clear before we load
unloadDatabase();
// Clear the shutdown flag
App.clearShutdown();
CheckBox cbQuickUnlock = (CheckBox)FindViewById(Resource.Id.enable_quickunlock);
App.getDB().QuickUnlockEnabled = cbQuickUnlock.Checked;
App.getDB().QuickUnlockKeyLength = int.Parse(prefs.GetString(GetString(Resource.String.QuickUnlockLength_key), GetString(Resource.String.QuickUnlockLength_default)));
Handler handler = new Handler();
LoadDB task = new LoadDB(App.getDB(), this, mIoConnection, pass, key, new AfterLoad(handler, this));
ProgressTask pt = new ProgressTask(this, task, Resource.String.loading_database);
pt.run();
};
/*CheckBox checkBox = (CheckBox) FindViewById(Resource.Id.show_password);
// Show or hide password
checkBox.CheckedChange += delegate(object sender, CompoundButton.CheckedChangeEventArgs e) {
TextView password = (TextView) FindViewById(Resource.Id.password);
if ( e.IsChecked ) {
password.InputType = InputTypes.ClassText | InputTypes.TextVariationVisiblePassword;
} else {
password.InputType = InputTypes.ClassText | InputTypes.TextVariationPassword;
}
};
*/
ImageButton btnTogglePassword = (ImageButton)FindViewById(Resource.Id.toggle_password);
btnTogglePassword.Click += (object sender, EventArgs e) => {
mShowPassword = !mShowPassword;
TextView password = (TextView)FindViewById(Resource.Id.password);
if (mShowPassword)
{
password.InputType = InputTypes.ClassText | InputTypes.TextVariationVisiblePassword;
} else
{
password.InputType = InputTypes.ClassText | InputTypes.TextVariationPassword;
}
};
CheckBox defaultCheck = (CheckBox)FindViewById(Resource.Id.default_database);
///Don't allow the current file to be the default if we don't have stored credentials
if ((mIoConnection.IsLocalFile() == false) && (mIoConnection.CredSaveMode != IOCredSaveMode.SaveCred))
{
defaultCheck.Enabled = false;
} else
{
defaultCheck.Enabled = true;
}
defaultCheck.CheckedChange += (object sender, CompoundButton.CheckedChangeEventArgs e) =>
{
String newDefaultFileName;
if (e.IsChecked)
{
newDefaultFileName = mIoConnection.Path;
} else
{
newDefaultFileName = "";
}
ISharedPreferencesEditor editor = prefs.Edit();
editor.PutString(KEY_DEFAULT_FILENAME, newDefaultFileName);
EditorCompat.apply(editor);
};
ImageButton browse = (ImageButton)FindViewById(Resource.Id.browse_button);
browse.Click += (object sender, EventArgs evt) =>
{
if (Interaction.isIntentAvailable(this, Intents.FILE_BROWSE))
{
Intent intent = new Intent(Intents.FILE_BROWSE);
if (!String.IsNullOrEmpty(mIoConnection.Path))
{
File keyfile = new File(mIoConnection.Path);
File parent = keyfile.ParentFile;
if (parent != null)
{
intent.SetData(Android.Net.Uri.Parse("file://" + parent.AbsolutePath));
}
}
try
{
StartActivityForResult(intent, Intents.REQUEST_CODE_FILE_BROWSE);
} catch (ActivityNotFoundException)
{
BrowserDialog diag = new BrowserDialog(this);
diag.Show();
}
} else
{
BrowserDialog diag = new BrowserDialog(this);
diag.Show();
}
};
retrieveSettings();
}
protected override void OnResume() {
base.OnResume();
// If the application was shutdown make sure to clear the password field, if it
// was saved in the instance state
if (App.isShutdown()) {
lockDatabase();
}
// Clear the shutdown flag
App.clearShutdown();
if (startedWithActivityResult)
return;
if (App.getDB().Loaded && (App.getDB().mIoc != null)
&& (mIoConnection != null) && (App.getDB().mIoc.GetDisplayName() == mIoConnection.GetDisplayName()))
{
if (App.getDB().Locked == false)
{
LaunchNextActivity();
}
else
{
tryStartQuickUnlock();
}
}
}
private void retrieveSettings() {
String defaultFilename = prefs.GetString(KEY_DEFAULT_FILENAME, "");
if (!String.IsNullOrEmpty(mIoConnection.Path) && mIoConnection.Path.Equals(defaultFilename)) {
CheckBox checkbox = (CheckBox) FindViewById(Resource.Id.default_database);
checkbox.Checked = true;
}
CheckBox cbQuickUnlock = (CheckBox)FindViewById(Resource.Id.enable_quickunlock);
cbQuickUnlock.Checked = prefs.GetBoolean(GetString(Resource.String.QuickUnlockDefaultEnabled_key), true);
}
private String getKeyFile(String filename) {
if ( mRememberKeyfile ) {
FileDbHelper dbHelp = App.fileDbHelper;
String keyfile = dbHelp.getFileByName(filename);
return keyfile;
} else {
return "";
}
}
private void populateView() {
setEditText(Resource.Id.filename, mIoConnection.GetDisplayName());
setEditText(Resource.Id.pass_keyfile, mKeyFile);
}
/*
private void errorMessage(CharSequence text)
{
Toast.MakeText(this, text, ToastLength.Long).Show();
}
*/
private void errorMessage(int resId)
{
Toast.MakeText(this, resId, ToastLength.Long).Show();
}
private String GetEditText(int resId) {
return Util.getEditText(this, resId);
}
private void setEditText(int resId, String str) {
TextView te = (TextView) FindViewById(resId);
//assert(te == null);
if (te != null) {
te.Text = str;
}
}
public override bool OnCreateOptionsMenu(IMenu menu) {
base.OnCreateOptionsMenu(menu);
MenuInflater inflate = MenuInflater;
inflate.Inflate(Resource.Menu.password, menu);
return true;
}
public override bool OnOptionsItemSelected(IMenuItem item) {
switch ( item.ItemId ) {
case Resource.Id.menu_about:
AboutDialog dialog = new AboutDialog(this);
dialog.Show();
return true;
case Resource.Id.menu_app_settings:
AppSettingsActivity.Launch(this);
return true;
}
return base.OnOptionsItemSelected(item);
}
private class AfterLoad : OnFinish {
PasswordActivity act;
public AfterLoad(Handler handler, PasswordActivity act):base(handler) {
this.act = act;
}
public override void run() {
if ( mSuccess ) {
act.StartQuickUnlockForegroundService();
act.LaunchNextActivity();
} else {
displayMessage(act);
}
}
}
}
}