/// <summary>
/// Sends a broadcast to all potential plugins prompting them to request access to our app.
/// </summary>
public static void TriggerRequests(Context ctx)
{
PluginDatabase pluginDatabase = new PluginDatabase(ctx);
foreach (string pkg in GetAllPlugins(ctx))
{
TriggerRequest(ctx, pkg, pluginDatabase);
}
}
public static void TriggerRequest(Context ctx, string pkgName, PluginDatabase pluginDatabase)
{
try
{
Intent triggerIntent = new Intent(Strings.ActionTriggerRequestAccess);
triggerIntent.SetPackage(pkgName);
triggerIntent.PutExtra(Strings.ExtraSender, ctx.PackageName);
triggerIntent.PutExtra(Strings.ExtraRequestToken, pluginDatabase.GetRequestToken(pkgName));
ctx.SendBroadcast(triggerIntent);
}
catch (Exception e)
{
}
}
public static void TriggerRequest(Context ctx, string pkgName, PluginDatabase pluginDatabase)
{
try
{
Intent triggerIntent = new Intent(Strings.ActionTriggerRequestAccess);
triggerIntent.SetPackage(pkgName);
triggerIntent.PutExtra(Strings.ExtraSender, ctx.PackageName);
triggerIntent.PutExtra(Strings.ExtraRequestToken, pluginDatabase.GetRequestToken(pkgName));
ctx.SendBroadcast(triggerIntent);
}
catch (Exception e)
{
}
}
public static void TriggerRequest(Context ctx, string pkgName, PluginDatabase pluginDatabase)
{
try
{
Intent triggerIntent = new Intent(Strings.ActionTriggerRequestAccess);
triggerIntent.SetPackage(pkgName);
triggerIntent.PutExtra(Strings.ExtraSender, ctx.PackageName);
string requestToken = pluginDatabase.GetRequestToken(pkgName);
triggerIntent.PutExtra(Strings.ExtraRequestToken, requestToken);
Android.Util.Log.Debug(_tag, "Request token: " + requestToken);
ctx.SendBroadcast(triggerIntent);
}
catch (Exception e)
{
}
}
public static void TriggerRequest(Context ctx, string pkgName, PluginDatabase pluginDatabase)
{
try
{
Intent triggerIntent = new Intent(Strings.ActionTriggerRequestAccess);
triggerIntent.SetPackage(pkgName);
triggerIntent.PutExtra(Strings.ExtraSender, ctx.PackageName);
string requestToken = pluginDatabase.GetRequestToken(pkgName);
triggerIntent.PutExtra(Strings.ExtraRequestToken, requestToken);
Android.Util.Log.Debug(_tag, "Request token: " + requestToken);
ctx.SendBroadcast(triggerIntent);
}
catch (Exception e)
{
}
}
protected override void OnResume()
{
base.OnResume();
PluginDatabase pluginDb = new PluginDatabase(this);
_items = (from pluginPackage in pluginDb.GetAllPluginPackages()
let version = PackageManager.GetPackageInfo(pluginPackage, 0).VersionName
let enabledStatus = pluginDb.IsEnabled(pluginPackage) ? GetString(Resource.String.plugin_enabled) : GetString(Resource.String.plugin_disabled)
select new PluginItem(pluginPackage, enabledStatus, this)).ToList();
/*
{
new PluginItem("PluginA", Resource.Drawable.Icon, "keepass2android.plugina", "connected"),
new PluginItem("KeepassNFC", Resource.Drawable.Icon, "com.bla.blubb.plugina", "disconnected")
};
* */
_pluginArrayAdapter = new PluginArrayAdapter(this, Resource.Layout.ListViewPluginRow, _items);
ListAdapter = _pluginArrayAdapter;
}
protected override void OnResume()
{
base.OnResume();
PluginDatabase pluginDb = new PluginDatabase(this);
_items = (from pluginPackage in pluginDb.GetAllPluginPackages()
let version = PackageManager.GetPackageInfo(pluginPackage, 0).VersionName
let enabledStatus = pluginDb.IsEnabled(pluginPackage) ? GetString(Resource.String.plugin_enabled) : GetString(Resource.String.plugin_disabled)
select new PluginItem(pluginPackage, enabledStatus, this)).ToList();
/*
* {
* new PluginItem("PluginA", Resource.Drawable.Icon, "keepass2android.plugina", "connected"),
* new PluginItem("KeepassNFC", Resource.Drawable.Icon, "com.bla.blubb.plugina", "disconnected")
* };
* */
_pluginArrayAdapter = new PluginArrayAdapter(this, Resource.Layout.ListViewPluginRow, _items);
ListAdapter = _pluginArrayAdapter;
}
private void UpdateView()
{
var scopesContainer = FindViewById <LinearLayout>(Resource.Id.scopes_list);
//scopesContainer.RemoveAllViews();
var pluginDb = new PluginDatabase(this);
_checkbox.Checked = pluginDb.IsEnabled(_pluginPackageName);
foreach (string scope in pluginDb.GetPluginScopes(_pluginPackageName))
{
string scopeId = scope.Substring("keepass2android.".Length);
TextWithHelp help = new TextWithHelp(this,
GetString(Resources.GetIdentifier(scopeId + "_title", "string", PackageName)),
GetString(Resources.GetIdentifier(scopeId + "_explanation", "string", PackageName)));
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FillParent,
ViewGroup.LayoutParams.WrapContent);
help.LayoutParameters = layoutParams;
scopesContainer.AddView(help);
}
}
public void CloseAfterTaskComplete()
{
//before closing, wait a little to get plugin updates
int numPlugins = new PluginDatabase(this).GetPluginsWithAcceptedScope(Strings.ScopeCurrentEntry).Count();
var timeToWait = TimeSpan.FromMilliseconds(500 * numPlugins);
SetProgressBarIndeterminateVisibility(true);
_timer = new Timer(obj =>
{
RunOnUiThread(() =>
{
//task is completed -> return NullTask
Intent resIntent = new Intent();
new NullTask().ToIntent(resIntent);
SetResult(KeePass.ExitCloseAfterTaskComplete, resIntent);
//close activity:
Finish();
}
);
},
null, timeToWait, TimeSpan.FromMilliseconds(-1));
}
public override void OnReceive(Context context, Intent intent)
{
PluginDatabase pluginDb = new PluginDatabase(context);
if (intent.Action == Strings.ActionRequestAccess)
{
var senderPackage = intent.GetStringExtra(Strings.ExtraSender);
var requestToken = intent.GetStringExtra(Strings.ExtraRequestToken);
var requestedScopes = intent.GetStringArrayListExtra(Strings.ExtraScopes);
if (!AreScopesValid(requestedScopes))
{
return;
}
if (pluginDb.GetRequestToken(senderPackage) != requestToken)
{
Log.Warn(_tag, "Invalid requestToken!");
return;
}
string currentAccessToken = pluginDb.GetAccessToken(senderPackage);
if ((currentAccessToken != null)
&& (AccessManager.IsSubset(requestedScopes,
pluginDb.GetPluginScopes(senderPackage))))
{
//permission already there.
var i = new Intent(Strings.ActionReceiveAccess);
i.PutExtra(Strings.ExtraSender, context.PackageName);
i.PutExtra(Strings.ExtraAccessToken, currentAccessToken);
//TODO: Plugin should verify requestToken to make sure it doesn't receive accessTokens from malicious apps
i.PutExtra(Strings.ExtraRequestToken, requestToken);
i.SetPackage(senderPackage);
context.SendBroadcast(i);
Log.Debug(_tag, "Plugin " + senderPackage + " enabled.");
}
else
{
//store that scope was requested but not yet approved (=> accessToken = null)
pluginDb.StorePlugin(senderPackage, null, requestedScopes);
Log.Debug(_tag, "Plugin " + senderPackage + " not enabled.");
//see if the plugin has an access token
string accessToken = intent.GetStringExtra(Strings.ExtraAccessToken);
if (accessToken != null)
{
//notify plugin that access token is no longer valid or sufficient
Intent i = new Intent(Strings.ActionRevokeAccess);
i.PutExtra(Strings.ExtraSender, context.PackageName);
i.PutExtra(Strings.ExtraAccessToken, accessToken);
i.SetPackage(senderPackage);
context.SendBroadcast(i);
Log.Warn(_tag, "Access token of plugin " + senderPackage + " not (or no more) valid.");
}
}
if (OnReceivedRequest != null)
OnReceivedRequest(this, new PluginHostEventArgs() { Package = senderPackage });
}
}
/// <summary>
/// Sends a broadcast to all potential plugins prompting them to request access to our app.
/// </summary>
public static void TriggerRequests(Context ctx)
{
PluginDatabase pluginDatabase = new PluginDatabase(ctx);
foreach (string pkg in GetAllPlugins(ctx))
TriggerRequest(ctx, pkg, pluginDatabase);
}
public void CloseAfterTaskComplete()
{
//before closing, wait a little to get plugin updates
int numPlugins = new PluginDatabase(this).GetPluginsWithAcceptedScope(Strings.ScopeCurrentEntry).Count();
var timeToWait = TimeSpan.FromMilliseconds(500*numPlugins);
SetProgressBarIndeterminateVisibility(true);
_timer = new Timer(obj =>
{
RunOnUiThread(() =>
{
//task is completed -> return NullTask
Intent resIntent = new Intent();
new NullTask().ToIntent(resIntent);
SetResult(KeePass.ExitCloseAfterTaskComplete, resIntent);
//close activity:
Finish();
}
);
},
null, timeToWait, TimeSpan.FromMilliseconds(-1));
}
public override void OnReceive(Context context, Intent intent)
{
PluginDatabase pluginDb = new PluginDatabase(context);
if (intent.Action == Strings.ActionRequestAccess)
{
string senderPackage = intent.GetStringExtra(Strings.ExtraSender);
string requestToken = intent.GetStringExtra(Strings.ExtraRequestToken);
IList <string> requestedScopes = intent.GetStringArrayListExtra(Strings.ExtraScopes);
if (!AreScopesValid(requestedScopes))
{
Log.Debug(_tag, "requested scopes not valid");
return;
}
if (pluginDb.GetRequestToken(senderPackage) != requestToken)
{
Log.Warn(_tag, "Invalid requestToken!");
return;
}
string currentAccessToken = pluginDb.GetAccessToken(senderPackage);
if ((currentAccessToken != null) &&
(AccessManager.IsSubset(requestedScopes,
pluginDb.GetPluginScopes(senderPackage))))
{
//permission already there.
var i = new Intent(Strings.ActionReceiveAccess);
i.PutExtra(Strings.ExtraSender, context.PackageName);
i.PutExtra(Strings.ExtraAccessToken, currentAccessToken);
//TODO: Plugin should verify requestToken to make sure it doesn't receive accessTokens from malicious apps
i.PutExtra(Strings.ExtraRequestToken, requestToken);
i.SetPackage(senderPackage);
context.SendBroadcast(i);
Log.Debug(_tag, "Plugin " + senderPackage + " enabled.");
}
else
{
//store that scope was requested but not yet approved (=> accessToken = null)
pluginDb.StorePlugin(senderPackage, null, requestedScopes);
Log.Debug(_tag, "Plugin " + senderPackage + " not enabled.");
//see if the plugin has an access token
string accessToken = intent.GetStringExtra(Strings.ExtraAccessToken);
if (accessToken != null)
{
//notify plugin that access token is no longer valid or sufficient
Intent i = new Intent(Strings.ActionRevokeAccess);
i.PutExtra(Strings.ExtraSender, context.PackageName);
i.PutExtra(Strings.ExtraAccessToken, accessToken);
i.SetPackage(senderPackage);
context.SendBroadcast(i);
Log.Warn(_tag, "Access token of plugin " + senderPackage + " not (or no more) valid.");
}
}
if (OnReceivedRequest != null)
{
OnReceivedRequest(this, new PluginHostEventArgs()
{
Package = senderPackage
});
}
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
Button button = FindViewById<Button>(Resource.Id.MyButton);
button.Click += delegate { PluginHost.TriggerRequests(this); };
FindViewById<Button>(Resource.Id.managePluginsButton).Click += delegate(object sender, EventArgs args)
{
StartActivity(new Intent(this, typeof(PluginListActivity)));
};
FindViewById<Button>(Resource.Id.entryviewButton).Click += delegate
{
StartActivity(new Intent(this, typeof(EntryActivity)));
};
FindViewById<Button>(Resource.Id.testDbButton).Click += delegate
{
string message = "ok. ";
try
{
Stopwatch sw = new Stopwatch();
sw.Start();
PluginDatabase db = new PluginDatabase(this);
db.Clear();
if (db.GetAllPluginPackages().Count() != 0)
throw new Exception("db not empty!");
const string testPackageA = "test.package.a";
const string testPackageB = "test.package.b";
db.ClearPlugin(testPackageA);
db.ClearPlugin(testPackageB);
EnsurePackageDataIsEmpty(db, testPackageA);
EnsurePackageDataIsEmpty(db, testPackageB);
string[] requestedScopes = {
Strings.ScopeDatabaseActions
};
db.StorePlugin(testPackageA, null, requestedScopes);
EnsurePackageDataIsEmpty(db, testPackageB);
EnsurePackageDataIsEmpty(new PluginDatabase(this), testPackageB);
db.StorePlugin(testPackageB, null, requestedScopes);
EnsurePackageHasUnacceptedScope(db, testPackageA, Strings.ScopeDatabaseActions);
EnsurePackageHasUnacceptedScope(db, testPackageB, Strings.ScopeDatabaseActions);
EnsurePackageHasUnacceptedScope(new PluginDatabase(this), testPackageA, Strings.ScopeDatabaseActions);
if (db.GetAllPluginPackages().Count() != 2)
throw new Exception("wrong count of plugins");
if (db.GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Any())
{
throw new Exception("wrong count of accepted plugins");
}
if (new PluginDatabase(this).GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Any())
{
throw new Exception("wrong count of accepted plugins");
}
db.SetEnabled(testPackageA, true);
if (db.GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Single() != testPackageA)
{
throw new Exception("wrong plugin");
}
if (new PluginDatabase(this).GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Single() != testPackageA)
{
throw new Exception("wrong plugin");
}
if (db.GetPluginsWithAcceptedScope("somescope").Any())
{
throw new Exception("wrong count of accepted plugins");
}
var accessTokenA = db.GetAccessToken(testPackageA);
if (String.IsNullOrEmpty(accessTokenA))
throw new Exception("expected access token!");
if (!db.IsEnabled(testPackageA))
throw new Exception("plugin not enabled!");
if (db.IsEnabled(testPackageB))
throw new Exception("plugin enabled!");
if (!db.IsValidAccessToken(testPackageA, accessTokenA, Strings.ScopeDatabaseActions))
throw new Exception("invalid token!");
db.SetEnabled(testPackageA, false);
if (db.IsValidAccessToken(testPackageA, accessTokenA, Strings.ScopeDatabaseActions))
throw new Exception("valid token?!");
if (db.GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Any())
throw new Exception("unexpected!");
new PluginDatabase(this).SetEnabled(testPackageB, true);
if (!db.IsEnabled(testPackageB))
throw new Exception("plugin not enabled!");
db.SetEnabled(testPackageA, true);
accessTokenA = db.GetAccessToken(testPackageA);
message += sw.ElapsedMilliseconds + "ms";
Stopwatch swQuery = new Stopwatch();
swQuery.Start();
int n = 3;
for (int i = 0; i < n; i++)
{
if (db.GetPluginsWithAcceptedScope(Strings.ScopeDatabaseActions).Count() != 2)
{
throw new Exception("wrong plugin");
}
if (!db.IsValidAccessToken(testPackageA, accessTokenA, Strings.ScopeDatabaseActions))
throw new Exception("invalid token");
}
message += "/ " + swQuery.ElapsedMilliseconds/(double)n/2.0 + "ms for query";
}
catch (Exception exception)
{
message = exception.ToString();
}
Toast.MakeText(this, message, ToastLength.Long).Show();
};
}
private void EnsurePackageHasUnacceptedScope(PluginDatabase db, string plugin, string scope)
{
if (String.IsNullOrEmpty(db.GetRequestToken(plugin)))
throw new Exception("invalid request token");
if (db.GetAccessToken(plugin) != null)
throw new Exception("invalid access token!");
if (db.GetPluginScopes(plugin).Count != 1)
throw new Exception("Unexpected scopes!");
if (db.GetPluginScopes(plugin).First() != scope)
throw new Exception("Unexpected scope in db!");
}
private static void EnsurePackageDataIsEmpty(PluginDatabase db, string testPackageA)
{
if (String.IsNullOrEmpty(db.GetRequestToken(testPackageA)))
throw new Exception("invalid request token");
if (db.GetAccessToken(testPackageA) != null)
throw new Exception("invalid access token!");
if (db.GetPluginScopes(testPackageA).Count > 0)
throw new Exception("Unexpected scopes!");
}
private void UpdateView()
{
var scopesContainer = FindViewById<LinearLayout>(Resource.Id.scopes_list);
//scopesContainer.RemoveAllViews();
var pluginDb = new PluginDatabase(this);
_checkbox.Checked = pluginDb.IsEnabled(_pluginPackageName);
foreach (string scope in pluginDb.GetPluginScopes(_pluginPackageName))
{
string scopeId = scope.Substring("keepass2android.".Length);
TextWithHelp help = new TextWithHelp(this,
GetString(Resources.GetIdentifier(scopeId + "_title", "string", PackageName)),
GetString(Resources.GetIdentifier(scopeId + "_explanation", "string", PackageName)));
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FillParent,
ViewGroup.LayoutParams.WrapContent);
help.LayoutParameters = layoutParams;
scopesContainer.AddView(help);
}
}
