/// <summary>
/// This method is used to restored values stored in local storage
/// </summary>
protected override async Task OnInitializedAsync()
{
try
{
// get the values from local storage if present
RememberLogin = await ProtectedLocalStore.GetAsync <bool>("RememberLogin");
// if RememberLogin is true
if (RememberLogin)
{
emailAddress = await ProtectedLocalStore.GetAsync <string>("ArtistEmailAddress");
storedPasswordHash = await ProtectedLocalStore.GetAsync <string>("ArtistPasswordHash");
password = "******";
}
else
{
// erase
emailAddress = "";
storedPasswordHash = "";
password = "";
}
}
catch (Exception error)
{
// for debugging only
DebugHelper.WriteDebugError("OnInitializedAsync", "Login.cs", error);
}
finally
{
// Always call this
Init();
}
}
/// <summary>
/// This method Load Local Private Data
/// </summary>
public async Task LoadLocalPrivateData()
{
// get the values from local storage if present
RememberLogin = await ProtectedLocalStore.GetAsync <bool>("RememberLogin");
// if RememberLogin is true
if (RememberLogin)
{
emailAddress = await ProtectedLocalStore.GetAsync <string>("ArtistEmailAddress");
storedPasswordHash = await ProtectedLocalStore.GetAsync <string>("ArtistPasswordHash");
password = "******";
}
else
{
// erase
emailAddress = "";
storedPasswordHash = "";
password = "";
}
}
/// <summary>
/// This method is used to verify a user
/// </summary>
/// <param name="firstRender"></param>
/// <returns></returns>
protected async override Task OnAfterRenderAsync(bool firstRender)
{
// if there is not a logged in user
if (!HasLoggedInUser)
{
// locals
string emailAddress = "";
string storedPasswordHash = "";
try
{
// get the values from local storage if present
bool rememberLogin = await ProtectedLocalStore.GetAsync <bool>("RememberLogin");
// if rememberLogin is true
if (rememberLogin)
{
emailAddress = await ProtectedLocalStore.GetAsync <string>("EmailAddress");
storedPasswordHash = await ProtectedLocalStore.GetAsync <string>("PasswordHash");
// If the emailAddress string exists
if (TextHelper.Exists(emailAddress))
{
// Attempt to find this user
User user = await UserService.FindUserByEmailAddress(emailAddress);
// If the user object exists
if (NullHelper.Exists(user))
{
// get the key
string key = EnvironmentVariableHelper.GetEnvironmentVariableValue("BlazorChat");
// if the key was found
if (TextHelper.Exists(key))
{
// can this artist be verified
bool isVerified = CryptographyHelper.VerifyHash(storedPasswordHash, key, user.PasswordHash, true);
// if the value for isVerified is true
if (isVerified)
{
// Set the LoggedInuser
LoggedInUser = user;
}
}
}
}
}
}
catch (Exception error)
{
// for debugging only
DebugHelper.WriteDebugError("OnAfterRenderAsync", "Login.cs", error);
}
}
// call the base
await base.OnAfterRenderAsync(firstRender);
// if the value for HasLoggedInUser is true
if ((HasLoggedInUser) && (firstRender))
{
// Refresh the UI
Refresh();
}
}