/// <summary>
/// Checks a selected privilege. Requests a privilege if not set.
/// </summary>
/// <param name="privilege">The privilege to check.</param>
private static void CheckPrivilege(string privilege)
{
switch (PrivacyPrivilegeManager.CheckPermission(privilege))
{
case CheckResult.Allow:
SetPermission(privilege, true);
break;
case CheckResult.Deny:
SetPermission(privilege, false);
break;
case CheckResult.Ask:
PrivacyPrivilegeManager.RequestPermission(privilege);
PrivacyPrivilegeManager.GetResponseContext(privilege)
.TryGetTarget(out PrivacyPrivilegeManager.ResponseContext context);
if (context != null)
{
context.ResponseFetched += PrivilegeRequestResponse;
}
break;
}
AllPrivilegesChecked();
}
internal static async Task <bool> RequestAsync(string privilege)
{
EnsureDeclared(privilege);
var checkResult = PrivacyPrivilegeManager.CheckPermission(privilege);
if (checkResult == CheckResult.Ask)
{
var completionSource = new TaskCompletionSource <bool>();
if (PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out var context))
{
void OnResponseFetched(object sender, RequestResponseEventArgs e)
{
completionSource.TrySetResult(e.result == RequestResult.AllowForever);
}
context.ResponseFetched += OnResponseFetched;
PrivacyPrivilegeManager.RequestPermission(privilege);
var result = await completionSource.Task;
context.ResponseFetched -= OnResponseFetched;
return(result);
}
return(false);
}
else if (checkResult == CheckResult.Deny)
{
return(false);
}
return(true);
}
/// <summary>
/// Returns true if all required privileges are granted, false otherwise.
/// </summary>
/// <returns>Task with check result.</returns>
public async Task <bool> CheckPrivileges()
{
CheckResult result = PrivacyPrivilegeManager.CheckPermission(HEALTHINFO_PRIVILEGE);
switch (result)
{
case CheckResult.Allow:
return(true);
case CheckResult.Deny:
return(false);
case CheckResult.Ask:
PrivacyPrivilegeManager.ResponseContext context = null;
PrivacyPrivilegeManager.GetResponseContext(HEALTHINFO_PRIVILEGE)
.TryGetTarget(out context);
if (context == null)
{
Log.Error("STT", "Unable to get privilege response context");
return(false);
}
_checkPrivilegesTask = new TaskCompletionSource <bool>();
context.ResponseFetched += PrivilegeManagerOnResponseFetched;
PrivacyPrivilegeManager.RequestPermission(HEALTHINFO_PRIVILEGE);
return(await _checkPrivilegesTask.Task);
default:
return(false);
}
}
/// <summary>
/// Checks location privilege. Request location privilege if not set.
/// Starts application when privilege check is complete.
/// </summary>
private void LocationPrivilegeCheck()
{
CheckResult result = PrivacyPrivilegeManager.CheckPermission(Config.LocationPrivilege);
switch (result)
{
case CheckResult.Allow:
ViewModels.ViewModelLocator.ViewModel.IsGPSAvailable = true;
StartApplication();
break;
case CheckResult.Deny:
ViewModels.ViewModelLocator.ViewModel.IsGPSAvailable = false;
StartApplication();
break;
case CheckResult.Ask:
PrivacyPrivilegeManager.GetResponseContext(Config.LocationPrivilege)
.TryGetTarget(out PrivacyPrivilegeManager.ResponseContext context);
if (context != null)
{
context.ResponseFetched += PPM_RequestResponse;
}
PrivacyPrivilegeManager.RequestPermission(Config.LocationPrivilege);
break;
}
}
private void CheckPrivileges()
{
// Check permission status (allow, deny, ask) to determinate action which has to be taken
string privilege = "http://tizen.org.privilege/healthinfo";
CheckResult result = PrivacyPrivilegeManager.CheckPermission(privilege);
if (result == CheckResult.Allow)
{
OnPrivilegesGranted();
}
else if (result == CheckResult.Deny)
{
OnPrivilegesDenied();
}
else // the user must be asked about granting the privilege
{
PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out var context);
if (context != null)
{
context.ResponseFetched += (sender, e) =>
{
if (e.cause == CallCause.Answer && e.result == RequestResult.AllowForever)
{
OnPrivilegesGranted();
}
else
{
OnPrivilegesDenied();
}
};
}
}
}
private void SetupPrivilegeHandler()
{
PrivacyPrivilegeManager.ResponseContext context = null;
if (PrivacyPrivilegeManager.GetResponseContext(hrmPrivilege).TryGetTarget(out context))
{
context.ResponseFetched += PrivilegeResponseHandler;
}
}
private static void SetupPPMHandler(string privilege)
{
PrivacyPrivilegeManager.ResponseContext context = null;
if (PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out context))
{
context.ResponseFetched += PPMResponseHandler;
}
}
/// <summary>
/// Used to set privilege event listener and request the privilege.
/// </summary>
void AskPrivacyPrivilege(string privilege)
{
// Set event listener for privilege
PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out context);
if (context != null)
{
context.ResponseFetched += PPM_RequestResponse;
}
// Request pop-up message for privileges
PrivacyPrivilegeManager.RequestPermission(privilege);
}
/// <summary>
/// Request user permission for privacy privileges
/// </summary>
/// <param name="service">privacy privilege</param>
/// <returns>true if user consent is gained</returns>
public async Task <bool> GetPermission(string service)
{
try
{
GrantedPermission = -1;
// Gets the status of a privacy privilege permission.
CheckResult result = PrivacyPrivilegeManager.CheckPermission(service);
switch (result)
{
case CheckResult.Allow:
// user consent for privacy privilege is already gained
Console.WriteLine("\n\n\nuser consent for privacy privilege is already gained\n\n");
return(true);
case CheckResult.Deny:
case CheckResult.Ask:
// User permission request should be required
tcs = new TaskCompletionSource <bool>();
// Gets the response context for a given privilege.
var reponseContext = PrivacyPrivilegeManager.GetResponseContext(service);
PrivacyPrivilegeManager.ResponseContext context = null;
if (reponseContext.TryGetTarget(out context))
{
if (context != null)
{
context.ResponseFetched += Context_ResponseFetched;
}
}
// Try to get the permission for service from a user.
PrivacyPrivilegeManager.RequestPermission(service);
// Check if permission is granted or not every second
Device.BeginInvokeOnMainThread(() =>
{
Device.StartTimer(new TimeSpan(0, 0, 0, 1, 0), CheckPermission);
});
return(await tcs.Task);
default:
return(false);
}
}
catch (Exception e)
{
Console.WriteLine("[UserPermission] (" + service + ") Error :" + e.Message + ", " + e.StackTrace + ", " + e.InnerException);
return(false);
}
}
private Task RequestPermission()
{
TaskCompletionSource <bool> tcs = new TaskCompletionSource <bool>();
var response = PrivacyPrivilegeManager.GetResponseContext(MEDIASTORAGE_PRIVILEGE);
PrivacyPrivilegeManager.ResponseContext target;
response.TryGetTarget(out target);
target.ResponseFetched += (s, e) =>
{
tcs.SetResult(true);
_mainPage.RestartScan();
};
PrivacyPrivilegeManager.RequestPermission(MEDIASTORAGE_PRIVILEGE);
return(tcs.Task);
}
/// <summary>
/// Check privacy privilege and if need to ask for user, send request for PPM.
/// </summary>
public bool CheckPrivilege()
{
// Make array list for requesting privacy privilege
// Contacts need 2 privilege, contact read and account write.
ArrayList PrivilegeList = new ArrayList();
PrivilegeList.Add("http://tizen.org/privilege/contact.read");
PrivilegeList.Add("http://tizen.org/privilege/contact.write");
int privilageAcceptedCount = 0;
// Check and request privacy privilege if app is needed
foreach (string list in PrivilegeList)
{
PrivacyPrivilegeManager.GetResponseContext(list).TryGetTarget(out context);
if (context != null)
{
++CBCount;
context.ResponseFetched += PPM_RequestResponse;
}
CheckResult result = PrivacyPrivilegeManager.CheckPermission(list);
switch (result)
{
case CheckResult.Allow:
/// Privilege can be used
privilageAcceptedCount++;
break;
case CheckResult.Deny:
/// Privilege can't be used
break;
case CheckResult.Ask:
/// Request permission to user
PrivacyPrivilegeManager.RequestPermission(list);
break;
}
}
if (privilageAcceptedCount == PrivilegeList.Count)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Check if a permission is granted and request a permission if it's not granted
/// </summary>
/// <param name="privilege">privilege name</param>
/// <returns>bool</returns>
public async Task <bool> CheckAndRequestPermission(string privilege)
{
try
{
// Gets the status of a privacy privilege permission.
CheckResult result = PrivacyPrivilegeManager.CheckPermission(privilege);
Log.Debug(Utility.LOG_TAG, "State: " + result.ToString());
switch (result)
{
case CheckResult.Allow:
// Permission has already been granted
// Privilege can be used
return(true);
case CheckResult.Deny:
// Privilege can't be used
Log.Debug(Utility.LOG_TAG, "In this case, " + privilege + " privilege is not available until the user changes the permission state from the Settings application.");
return(false);
case CheckResult.Ask:
// Permission is not granted so we need to request the permission
PrivacyPrivilegeManager.ResponseContext context;
PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out context);
if (context == null)
{
return(false);
}
tcs = new TaskCompletionSource <bool>();
context.ResponseFetched += PPMResponseHandler;
// Request a permission
// Calling it brings up a system dialog that an app user can decide to approve or deny it.
PrivacyPrivilegeManager.RequestPermission(privilege);
return(await tcs.Task);
default:
return(false);
}
}
catch (Exception e)
{
// Handle exception
Log.Error(Utility.LOG_TAG, "An error occurred. : " + e.Message);
return(false);
}
}
async Task <PermissionStatus> CheckPrivilegeAsync(bool ask)
{
if (RequiredPrivileges == null || !RequiredPrivileges.Any())
{
return(PermissionStatus.Granted);
}
EnsureDeclared();
var tizenPrivileges = RequiredPrivileges.Where(p => p.isRuntime);
foreach (var(tizenPrivilege, isRuntime) in tizenPrivileges)
{
var checkResult = PrivacyPrivilegeManager.CheckPermission(tizenPrivilege);
if (checkResult == CheckResult.Ask)
{
if (ask)
{
var tcs = new TaskCompletionSource <bool>();
PrivacyPrivilegeManager.GetResponseContext(tizenPrivilege)
.TryGetTarget(out var context);
void OnResponseFetched(object sender, RequestResponseEventArgs e)
{
tcs.TrySetResult(e.result == RequestResult.AllowForever);
}
context.ResponseFetched += OnResponseFetched;
PrivacyPrivilegeManager.RequestPermission(tizenPrivilege);
var result = await tcs.Task;
context.ResponseFetched -= OnResponseFetched;
if (result)
{
continue;
}
}
return(PermissionStatus.Denied);
}
else if (checkResult == CheckResult.Deny)
{
return(PermissionStatus.Denied);
}
}
return(PermissionStatus.Granted);
}
private void initDataSourcesWithPrivileges()
{
PrivacyPrivilegeManager.ResponseContext context = null;
if (PrivacyPrivilegeManager.GetResponseContext(Tools.HEALTHINFO_PRIVILEGE).TryGetTarget(out context))
{
context.ResponseFetched += (s, e) =>
{
if (e.result != RequestResult.AllowForever)
{
Toast.DisplayText("Please provide the necessary privileges for the application to run!");
Environment.Exit(1);
}
else
{
initCampaignDataSources();
}
}
}
;
else
{
Toast.DisplayText("Please provide the necessary privileges for the application to run!");
Environment.Exit(1);
}
switch (PrivacyPrivilegeManager.CheckPermission(Tools.HEALTHINFO_PRIVILEGE))
{
case CheckResult.Allow:
initCampaignDataSources();
break;
case CheckResult.Deny:
Toast.DisplayText("Please provide the necessary privileges for the application to run!");
Environment.Exit(1);
break;
case CheckResult.Ask:
PrivacyPrivilegeManager.RequestPermission(Tools.HEALTHINFO_PRIVILEGE);
break;
default:
break;
}
}
static async Task <AccessState> RequestPermission(string priv)
{
var result = AccessState.Unknown;
var tcs = new TaskCompletionSource <AccessState>();
var handler = new EventHandler <RequestResponseEventArgs>((sender, args) =>
{
switch (args.result)
{
case RequestResult.AllowForever:
tcs.TrySetResult(AccessState.Available);
break;
default:
tcs.TrySetResult(AccessState.Denied);
break;
}
});
PrivacyPrivilegeManager.ResponseContext context = null;
try
{
PrivacyPrivilegeManager.GetResponseContext(priv).TryGetTarget(out context);
if (context == null)
{
tcs.SetResult(AccessState.NotSupported);
}
else
{
context.ResponseFetched += handler;
PrivacyPrivilegeManager.RequestPermission(priv);
}
result = await tcs.Task.ConfigureAwait(false);
}
finally
{
if (context != null)
{
context.ResponseFetched -= handler;
}
}
return(result);
}
/// <summary>
/// Check privacy privilege and if need to ask for user, send request for PPM.
/// </summary>
public async Task <bool> CheckPrivilege()
{
// Make array list for requesting privacy privilege
// Contacts need 2 privilege, contact read and account write.
var privileges = new List <string>
{
"http://tizen.org/privilege/contact.read",
"http://tizen.org/privilege/contact.write"
};
// Check and request privacy privilege if app is needed
foreach (string privilege in privileges)
{
CheckResult result = PrivacyPrivilegeManager.CheckPermission(privilege);
switch (result)
{
case CheckResult.Allow:
break;
case CheckResult.Deny:
return(false);
case CheckResult.Ask:
/// Request permission to user
if (PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out PrivacyPrivilegeManager.ResponseContext context))
{
TaskCompletionSource <bool> tcs = new TaskCompletionSource <bool>();
context.ResponseFetched += (s, e) =>
{
tcs.SetResult(e.result == RequestResult.AllowForever);
};
PrivacyPrivilegeManager.RequestPermission(privilege);
if (!(await tcs.Task))
{
return(false);
}
}
break;
}
}
return(true);
}
static Task <bool> RequestPermission(string privilege)
{
TaskCompletionSource <bool> tcs = new TaskCompletionSource <bool>();
var response = PrivacyPrivilegeManager.GetResponseContext(privilege);
PrivacyPrivilegeManager.ResponseContext target;
response.TryGetTarget(out target);
target.ResponseFetched += (s, e) =>
{
if (e.cause == CallCause.Error)
{
/// Handle errors
Tizen.Log.Error(Constants.logTag, "An error occurred while requesting an user permission");
tcs.SetResult(false);
return;
}
// Now, we can check if the permission is granted or not
switch (e.result)
{
case RequestResult.AllowForever:
// Permission is granted.
// We can do this permission-related task we want to do.
Tizen.Log.Info(Constants.logTag, "Response : RequestResult.AllowForever");
tcs.SetResult(true);
break;
case RequestResult.DenyForever:
case RequestResult.DenyOnce:
// Functionality that depends on this permission will not be available
Tizen.Log.Info(Constants.logTag, "Response: RequestResult." + e.result.ToString());
tcs.SetResult(false);
break;
}
};
PrivacyPrivilegeManager.RequestPermission(privilege);
return(tcs.Task);
}
/// <summary>
/// Request user permission for privacy privileges
/// </summary>
/// <param name="service">privacy privilege</param>
/// <returns>true if user consent is gained</returns>
public async Task <bool> GetPermission(string service)
{
try
{
// Gets the status of a privacy privilege permission.
CheckResult result = PrivacyPrivilegeManager.CheckPermission(service);
switch (result)
{
case CheckResult.Allow:
// user consent for privacy privilege is already gained
return(true);
case CheckResult.Deny:
case CheckResult.Ask:
// User permission request should be required
tcs = new TaskCompletionSource <bool>();
// Gets the response context for a given privilege.
var reponseContext = PrivacyPrivilegeManager.GetResponseContext(service);
PrivacyPrivilegeManager.ResponseContext context = null;
if (reponseContext.TryGetTarget(out context))
{
if (context != null)
{
context.ResponseFetched += Context_ResponseFetched;
}
}
// Try to get the permission for service from a user.
PrivacyPrivilegeManager.RequestPermission(service);
return(await tcs.Task);
default:
return(false);
}
}
catch (Exception e)
{
Console.WriteLine("[UserPermission] (" + service + ") Error :" + e.Message);
return(false);
}
}
/// <summary>
/// Check privacy privilege and if need to ask for user,
/// send request for Privacy Privilege Manager.
/// </summary>
public void CheckAccountPrivilege()
{
// Make array list for requesting privacy privilege
// Account sample need 2 privilege, account read and account write
ArrayList privilegeList = new ArrayList
{
"http://tizen.org/privilege/account.read",
// Account.read and account.write is same ppm. So if we use both, appear same pop up 2 times. So security team guide use just one.
// "http://tizen.org/privilege/account.write"
};
// Check and request privacy privilege if app is needed
foreach (string list in privilegeList)
{
PrivacyPrivilegeManager.GetResponseContext(list).TryGetTarget(out context);
if (context != null)
{
++callbackCount;
context.ResponseFetched += PpmRequestResponse;
}
CheckResult result = PrivacyPrivilegeManager.CheckPermission(list);
switch (result)
{
case CheckResult.Allow:
// Privilege can be used
break;
case CheckResult.Deny:
// Privilege can't be used
break;
case CheckResult.Ask:
// User permission request required
PrivacyPrivilegeManager.RequestPermission(list);
break;
}
}
}
protected static void Check(string permission, Action <bool> callback)
{
var initPermission = PrivacyPrivilegeManager.CheckPermission(permission);
if (initPermission == CheckResult.Allow)
{
callback(true);
return;
}
if (initPermission == CheckResult.Deny)
{
callback(false);
return;
}
if (!PrivacyPrivilegeManager.GetResponseContext(permission).TryGetTarget(out var context))
{
callback(false);
return;
}
context.ResponseFetched += (sender, e) => callback(e.result == RequestResult.AllowForever);
PrivacyPrivilegeManager.RequestPermission(permission);
}
public async Task <bool> CheckAndRequestPermission(string privilege)
{
try
{
CheckResult result = PrivacyPrivilegeManager.CheckPermission(privilege);
Log.Debug(Utility.LOG_TAG, "State: " + result.ToString());
switch (result)
{
case CheckResult.Allow:
return(true);
case CheckResult.Deny:
Log.Debug(Utility.LOG_TAG, "In this case, health data is not available until the user changes the permission state from the Settings application.");
return(false);
case CheckResult.Ask:
// Request permission to User
PrivacyPrivilegeManager.ResponseContext context;
PrivacyPrivilegeManager.GetResponseContext(privilege).TryGetTarget(out context);
if (context == null)
{
return(false);
}
tcs = new TaskCompletionSource <bool>();
context.ResponseFetched += PPMResponseHandler;
PrivacyPrivilegeManager.RequestPermission(privilege);
return(await tcs.Task);
default:
return(false);
}
}
catch (Exception e)
{
// Handle exception
Log.Error(Utility.LOG_TAG, "An error occurred. : " + e.Message);
return(false);
}
}
/// <summary>
/// Used to set privilege event listener and request the privilege.
/// </summary>
private static void PPM_RequestResponse(object sender, RequestResponseEventArgs e)
{
if (e.cause == CallCause.Answer)
{
switch (e.result)
{
// Allow clicked case
case RequestResult.AllowForever:
if (e.privilege == "http://tizen.org/privilege/calendar.read")
{
pEvent.AllowCalendarReadPrivilege();
}
else if (e.privilege == "http://tizen.org/privilege/contact.read")
{
pEvent.AllowContactReadPrivilege();
}
break;
case RequestResult.DenyForever:
break;
case RequestResult.DenyOnce:
break;
}
;
// Unset event listener for privilege
PrivacyPrivilegeManager.GetResponseContext(e.privilege).TryGetTarget(out context);
if (context != null)
{
context.ResponseFetched -= PPM_RequestResponse;
}
}
else
{
Console.WriteLine("Error occurs during requesting permission for {0}", e.privilege);
}
}
internal static async Task <PermissionStatus> CheckPrivacyPermission(PermissionType permission, bool askUser)
{
EnsureDeclared(permission);
var tizenPrivileges = permission.ToTizenPrivileges(onlyRuntimePermissions: true);
foreach (var priv in tizenPrivileges)
{
if (PrivacyPrivilegeManager.CheckPermission(priv) == CheckResult.Ask)
{
if (askUser)
{
var tcs = new TaskCompletionSource <bool>();
PrivacyPrivilegeManager.ResponseContext context = null;
PrivacyPrivilegeManager.GetResponseContext(priv).TryGetTarget(out context);
void OnResponseFetched(object sender, RequestResponseEventArgs e)
{
tcs.TrySetResult(e.result == RequestResult.AllowForever);
}
context.ResponseFetched += OnResponseFetched;
PrivacyPrivilegeManager.RequestPermission(priv);
var result = await tcs.Task;
context.ResponseFetched -= OnResponseFetched;
if (result)
{
continue;
}
}
return(PermissionStatus.Denied);
}
else if (PrivacyPrivilegeManager.CheckPermission(priv) == CheckResult.Deny)
{
return(PermissionStatus.Denied);
}
}
return(PermissionStatus.Granted);
}
/// <summary>
/// Asks the user to grant the permission at runtime
/// </summary>
/// <param name="privilege">The privilege name to check for</param>
/// <returns>A status that indicates whether the permission has been granted or not</returns>
public static async Task <PrivacyPermissionStatus> RequestAsync(string privilege)
{
switch (PrivacyPrivilegeManager.CheckPermission(privilege))
{
case CheckResult.Allow:
return(PrivacyPermissionStatus.Granted);
case CheckResult.Deny:
case CheckResult.Ask:
var tcs = new TaskCompletionSource <PrivacyPermissionStatus>();
var response = PrivacyPrivilegeManager.GetResponseContext(privilege);
PrivacyPrivilegeManager.ResponseContext context = null;
if (response.TryGetTarget(out context))
{
context.ResponseFetched += (s, e) =>
{
PrivacyPermissionStatus result = PrivacyPermissionStatus.Denied;
if (e.result == RequestResult.AllowForever)
{
result = PrivacyPermissionStatus.Granted;
}
tcs.SetResult(result);
};
}
PrivacyPrivilegeManager.RequestPermission(privilege);
return(await tcs.Task);
default:
return(PrivacyPermissionStatus.Denied);
}
}
