[FIX] Registration & Forgot password

source/EduCATS/Data/DataAccess.cs

@@ -173,6 +173,18 @@ public async static Task<GroupModel> GetOnlyGroups(int subjectId)
 			return await GetDataObject(dataAccess, false) as GroupModel;
 		}
 
+		/// <summary>
+		/// Fetch groups data.
+		/// </summary>
+		/// <param name="subjectId">Subject ID.</param>
+		/// <returns>Group data.</returns>
+		public async static Task<List<GroupItemModel>> GetGroupsData()
+		{
+			var dataAccess = new DataAccess<GroupItemModel>(
+				"groups_fetch_error", getGroupsDataCallback());
+			return await GetDataObject(dataAccess, true) as List<GroupItemModel>;
+		}
+
 		public async static Task<LecturesModel> GetLecturesTest(int subjectId, int groupId)
 		{
 			var dataAccess = new DataAccess<LecturesModel>(

source/EduCATS/Data/DataAccessCallbacks.cs

@@ -83,6 +83,13 @@ public static partial class DataAccess
 		static async Task<object> getGroupsCallback(
 			int subjectId) => await AppServices.GetOnlyGroups(subjectId);
 
+		/// <summary>
+		/// Groups data callback.
+		/// </summary>
+		/// <param name="subjectId">Subject ID.</param>
+		/// <returns>Group data.</returns>
+		static async Task<object> getGroupsDataCallback() => await AppServices.GetGroupsData();
+
 		/// <summary>
 		/// Laboratory works callback.
 		/// </summary>

source/EduCATS/EduCATS.csproj

@@ -54,7 +54,6 @@
         <Folder Include="Helpers\Date\" />
         <Folder Include="Helpers\Date\Extensions\" />
         <Folder Include="Helpers\Date\Enums\" />
-        <Folder Include="Data\Models\Subjects\" />
         <Folder Include="Data\Models\News\" />
         <Folder Include="Data\Models\Calendar\" />
         <Folder Include="Pages\Today\NewsDetails\" />
@@ -89,7 +88,6 @@
         <Folder Include="Pages\Testing\Base\Views\" />
         <Folder Include="Pages\Testing\Base\ViewModels\" />
         <Folder Include="Pages\Testing\Base\Views\ViewCells\" />
-        <Folder Include="Data\Models\Testing\" />
         <Folder Include="Pages\Testing\Base\Models\" />
         <Folder Include="Pages\Testing\Passing\" />
         <Folder Include="Pages\Testing\Passing\Models\" />
@@ -99,7 +97,6 @@
         <Folder Include="Data\Models\Testing\Passing\" />
         <Folder Include="Networking\Models\Testing\" />
         <Folder Include="Pages\Testing\Passing\Views\ViewCells\" />
-        <Folder Include="Data\Models\Testing\Results\" />
         <Folder Include="Pages\Testing\Results\" />
         <Folder Include="Pages\Testing\Results\Views\" />
         <Folder Include="Pages\Testing\Results\ViewModels\" />
@@ -108,12 +105,10 @@
         <Folder Include="Pages\Eemc\Views\" />
         <Folder Include="Pages\Eemc\ViewModels\" />
         <Folder Include="Networking\Models\Eemc\" />
-        <Folder Include="Data\Models\Eemc\" />
         <Folder Include="Pages\Eemc\Views\ViewCell\" />
         <Folder Include="Pages\Files\" />
         <Folder Include="Pages\Files\Views\" />
         <Folder Include="Pages\Files\ViewModels\" />
-        <Folder Include="Data\Models\Files\" />
         <Folder Include="Pages\Files\Models\" />
         <Folder Include="Pages\Files\Views\ViewCells\" />
         <Folder Include="Data\Models\Recommendations\" />

source/EduCATS/Networking/AppServices/AppServices.cs

@@ -153,6 +153,16 @@ public static async Task<object> GetOnlyGroups(int subjectId)
 			return await AppServicesController.Request($"{Links.GetOnlyGroups}/{subjectId}");
 		}
 
+		/// <summary>
+		/// Fetch groups data.
+		/// </summary>
+		/// <param name="subjectId">Subject ID.</param>
+		/// <returns>Group data.</returns>
+		public static async Task<object> GetGroupsData()
+		{
+			return await AppServicesController.Request($"{Links.GetGroupsData}");
+		}
+
 		/// <summary>
 		/// Fetch laboratory works data request.
 		/// </summary>

source/EduCATS/Networking/Links.cs

@@ -52,6 +52,11 @@ public static class Links
 		/// </summary>
 		public static string GetOnlyGroups => $"{Servers.Current}/Services/CoreService.svc/GetOnlyGroups";
 
+		/// <summary>
+		/// Get groups data URL.
+		/// </summary>
+		public static string GetGroupsData => $"{Servers.Current}/Administration/GetGroupsJson";
+
 		/// <summary>
 		/// Get laboratory works URL.
 		/// </summary>

source/EduCATS/Pages/ForgotPassword/ViewModels/ForgotPasswordPageViewModel.cs

@@ -68,8 +68,8 @@ public bool LatinPassword()
 			{
 				for (int i = 0; i < NewPassword.Length; i++)
 				{
-					if (!(((NewPassword[i] >= 'a') && (NewPassword[i] <= 'z')) || ((NewPassword[i] >= 'A') && (NewPassword[i] <= 'Z')) ||
-						(int.Parse(NewPassword[i].ToString()) >= 0) && (int.Parse(NewPassword[i].ToString()) <= 9)))
+					if (!(((NewPassword[i] >= 'a') && (NewPassword[i] <= 'z')) || ((NewPassword[i] >= 'A') && (NewPassword[i] <= 'Z')) || (NewPassword[i] == '_') ||
+						((NewPassword[i] >= '0') && NewPassword[i] <= '9')))
 					{
 						latin_password = false;
 						break;

source/EduCATS/Pages/Registration/ViewModels/RegistrationPageViewModel.cs

@@ -44,8 +44,8 @@ public bool checkCredentials()
 				string.IsNullOrEmpty(ConfirmPassword) ||
 				string.IsNullOrEmpty(Name) ||
 				string.IsNullOrEmpty(Surname) ||
-				ReferenceEquals(Group.Id, null) ||
-				ReferenceEquals(SelectedQuestionId, null) ||
+				ReferenceEquals(Group, null) ||
+				ReferenceEquals(SelectedQuestionId, 0) ||
 				string.IsNullOrEmpty(AnswerToSecretQuestion))
 			{
 				return false;
@@ -72,8 +72,8 @@ public bool LatinPassword()
 
 				for (int i = 0; i < Password.Length; i++)
 				{
-					if (!(((Password[i] >= 'a') && (Password[i] <= 'z')) || ((Password[i] >= 'A') && (Password[i] <= 'Z')) ||
-						(int.Parse(Password[i].ToString()) >= 0) && (int.Parse(Password[i].ToString()) <= 9)))
+					if (!(((Password[i] >= 'a') && (Password[i] <= 'z')) || ((Password[i] >= 'A') && (Password[i] <= 'Z')) || (Password[i] == '_') ||
+						((Password[i] >= '0') && Password[i] <= '9')))
 					{
 						latin_password = false;
 						break;
@@ -98,7 +98,7 @@ public bool CheckNameOfUser(string nameOfUser)
 						((nameOfUser[i] >= 'a') && (nameOfUser[i] <= 'z')) || ((nameOfUser[i] >= 'A') && (nameOfUser[i] <= 'Z')) ||
 						((nameOfUser[i] >= 'а') && (nameOfUser[i] <= 'я')) || ((nameOfUser[i] >= 'А') && (nameOfUser[i] <= 'Я')) ||
 						((nameOfUser[i] == '_') || (nameOfUser[i] == ' ') || (nameOfUser[i] == '-')) ||
-						((int.Parse(nameOfUser[i].ToString()) >= 0 && int.Parse(nameOfUser[i].ToString()) <= 9))))
+						(nameOfUser[i] >= '0' && nameOfUser[i] <= '9')))
 					{
 						name = false;
 						break;
@@ -120,7 +120,7 @@ public bool LatinUserName()
 				for (int i = 0; i < UserName.Length; i++)
 				{
 					if (!(((UserName[i] >= 'a') && (UserName[i] <= 'z')) || ((UserName[i] >= 'A') && (UserName[i] <= 'Z'))
-						|| ((int.Parse(UserName[i].ToString()) >= 0) && (int.Parse(UserName[i].ToString()) <= 9))
+						|| ((UserName[i] >= '0') && (UserName[i] <= '9'))
 						|| (UserName[i] == '_')
 						|| (UserName[i] == '.')
 						|| (UserName[i] == '-')
@@ -147,14 +147,16 @@ public async Task<Task<object>> startRegister()
 					bool correctPatronymic = true;
 					bool correctName = CheckNameOfUser(Name);
 					bool correctSurname = CheckNameOfUser(Surname);
+					bool secretAnswer = CheckNameOfUser(AnswerToSecretQuestion);
 					if (Patronymic != null)
 					{
 						correctPatronymic = CheckNameOfUser(Patronymic);
 					}
 					SelectedQuestionId = 0;
 					int uppercase = UpperCaseLettersInPassword();
-					bool latin_password = LatinPassword();
-					bool latin_username = LatinUserName();
+					bool latinPassword = LatinPassword();
+					bool latinUsername = LatinUserName();
+
 					if (QuestionId == CrossLocalization.Translate("mother_last_name"))
 					{
 						SelectedQuestionId = 1;
@@ -171,7 +173,7 @@ public async Task<Task<object>> startRegister()
 					var userExists = await VerifyUserNameAsync(UserName);
 					if (JsonConvert.DeserializeObject<string>(userExists.Key) == "true")
 					{
-						_services.Dialogs.ShowError(CrossLocalization.Translate(""));
+						_services.Dialogs.ShowError(CrossLocalization.Translate("user_exists"));
 						return Task.FromResult<object>(null);
 					}
 
@@ -182,7 +184,7 @@ public async Task<Task<object>> startRegister()
 						return Task.FromResult<object>(null);
 					}
 
-					if (!(latin_username == true))
+					if (!(latinUsername == true))
 					{
 						_services.Dialogs.ShowMessage(CrossLocalization.Translate("username_error"),
 											CrossLocalization.Translate("latin_letters"));
@@ -195,7 +197,7 @@ public async Task<Task<object>> startRegister()
 						return Task.FromResult<object>(null);
 					}
 
-					if (!(uppercase != 0 && latin_password == true))
+					if (!(uppercase != 0 && latinPassword == true))
 					{
 						_services.Dialogs.ShowMessage(CrossLocalization.Translate("password_not_correct"),
 									CrossLocalization.Translate("latin_password"));

source/EduCATS/Pages/Registration/Views/RegistrationPageView.cs

@@ -1,4 +1,5 @@
-using EduCATS.Data.Models;
+using EduCATS.Data;
+using EduCATS.Data.Models;
 using EduCATS.Helpers.Forms;
 using EduCATS.Helpers.Forms.Styles;
 using EduCATS.Pages.Registration.ViewModels;
@@ -37,23 +38,15 @@ public RegistrationPageView()
 			BindingContext = new RegistrationPageViewModel(new PlatformServices());
 			NavigationPage.SetHasNavigationBar(this, false);
 			BackgroundColor = Color.FromHex(Theme.Current.AppBackgroundColor);
-			WebRequest request = WebRequest.Create("http://educats.by/Administration/GetGroupsJson");
-			WebResponse response = request.GetResponse();
-			string json = "";
-			using (Stream stream = response.GetResponseStream())
-			{
-				using (StreamReader reader = new StreamReader(stream))
-				{
-					string line = "";
-					while ((line = reader.ReadLine()) != null)
-					{
-						json += line;
-					}
-				}
-			};
-			groupData = JsonConvert.DeserializeObject<List<GroupItemModel>>(json);
+			setGroupData();
+		}
+
+		async void setGroupData()
+		{
+			groupData = await DataAccess.GetGroupsData();
 			createView();
 		}
+
 		void createView()
 		{
 			var backgroundImage = createBackgroundImage();