public async Task <OTP_Verified> verifyForgetPassword(UserOtpVerification userOtpObj)
{
OTP_Verified verification_status = new OTP_Verified();
verification_status.Verification_Result = false;
bool otpValid = false;
try
{
//connect to the Firebase
Boolean connectionResult = connectToFirebase();
if (connectionResult)
{
DocumentReference docRef1 = db.Collection("UserKeys").Document(userOtpObj.Email_Address);
DocumentSnapshot docSnap1 = await docRef1.GetSnapshotAsync();
DBUserKeys DBuserKeyObj = docSnap1.ConvertTo <DBUserKeys>();
var bytes = Encoding.ASCII.GetBytes(DBuserKeyObj.userKey);
DateTime otp_obtained_time_from_user = System.DateTime.Now;
//Comapre the otp obtained from the user
if (otpString.Equals(userOtpObj.OTP.ToString()))
{
TimeSpan ts = otp_obtained_time_from_user - otp_generated_time;
if (ts.TotalMinutes <= 2)
{
otpValid = true;
verification_status.Verification_Result = true;
}
}
}
return(verification_status);
}
catch (Exception ex)
{
CustomException customException = new CustomException();
customException.errorTitleName = "Cannot Verify Your OTP ,Please Try Again later!!";
customException.errorMessageToUser = ex.Message;
throw new FaultException <CustomException>(customException);
}
}
public async Task <OTP_Verified> verifyUser(UserOtpVerification userOtpObj)
{
OTP_Verified verification_status = new OTP_Verified();
try
{
//connect to the Firebase
Boolean connectionResult = connectToFirebase();
if (connectionResult)
{
DocumentReference docRef1 = db.Collection("UserKeys").Document(userOtpObj.Email_Address);
DocumentSnapshot docSnap1 = await docRef1.GetSnapshotAsync();
DBUserKeys DBuserKeyObj = docSnap1.ConvertTo <DBUserKeys>();
var bytes = Encoding.ASCII.GetBytes(DBuserKeyObj.userKey);
bool otpValid = false;
DateTime otp_obtained_time_from_user = System.DateTime.Now;
//Comapre the otp obtained from the user
if (otpString.Equals(userOtpObj.OTP.ToString()))
{
TimeSpan ts = otp_obtained_time_from_user - otp_generated_time;
if (ts.TotalMinutes <= 2)
{
otpValid = true;
}
}
//If OTP is verified then
if (otpValid)
{
//update the Verification Status of the User on the Database
DocumentReference docRef2 = db.Collection("User").Document(DBuserKeyObj.email);
Dictionary <string, object> data2 = new Dictionary <string, object>()
{
{ "verified", true },
};
//DocumentSnapshot docSnap2 = await docRef2.GetSnapshotAsync();
await docRef2.UpdateAsync(data2);
verification_status.Verification_Result = true;
//send the email for secure access Pin to the user
await SendPDFEmail(PIN, user_Email, user_Password);
//Create Encryption key for the user
try
{
//This class create the encyrption key for the user for the further security features
AzureEncryptDecrypt azureEncryptDecrypt = new AzureEncryptDecrypt();
string encryptionKeyName = await azureEncryptDecrypt.createEncryptionRSAKey();
DocumentReference documentReference_for_keys = db.Collection("UserEncryptionKeys").Document(userOtpObj.Email_Address);
Dictionary <string, object> userKeyValues = new Dictionary <string, object>()
{
{
"userEmailAddress", userOtpObj.Email_Address
},
{
"userKeyName", encryptionKeyName
},
{
"keyGenerationDate", DateTime.Now.ToString()
}
};
await documentReference_for_keys.SetAsync(userKeyValues);
}
catch (Exception ex)
{
//catch the exception and throw the error on the client
CustomException customException = new CustomException();
customException.errorTitleName = ex.Message;
customException.errorMessageToUser = "******";
throw new FaultException <CustomException>(customException);
}
return(verification_status);
}
}
}
catch (Exception ex)
{
//catch the exception and throw the error on the client
CustomException customException = new CustomException();
customException.errorTitleName = ex.Message;
customException.errorMessageToUser = "******";
throw new FaultException <CustomException>(customException);
}
//make false if the code reaches upto this
verification_status.Verification_Result = false;
//return the verification status to the user
return(verification_status);
}
public async Task <bool> sendOTP(string email, string userName, bool isForgetPassword)
{
try
{
//Connec to the Firestore Database
Boolean connectionResult = connectToFirebase();
//Create the instance to the document refernce and get to the path of the user document
DocumentReference docRef1 = db.Collection("UserKeys").Document(email);
//Snapshot for the same document
DocumentSnapshot docSnap1 = await docRef1.GetSnapshotAsync();
//Get the User Secret Keys
DBUserKeys DBuserKeyObj = docSnap1.ConvertTo <DBUserKeys>();
//var bytes= Base32Encoding.ToBytes(DBuserKeyObj.userKey);
var bytes = Encoding.ASCII.GetBytes(DBuserKeyObj.userKey);
//Creating otp
var TotpObj = new Totp(bytes, step: 120);
otpString = TotpObj.ComputeTotp();
otp_generated_time = System.DateTime.Now;
//sending otp using email
string emailAddress = System.Configuration.ConfigurationManager.AppSettings["SecureDeskEmailAddress"];
MailMessage mailMessage = new MailMessage(emailAddress, email);
//Get the connection string from the azure
string connection_String = System.Configuration.ConfigurationManager.AppSettings["SecureDeskConnectionStringBlob"];
//get the reference to the Blob Container of the secure Desk
BlobContainerClient container = new BlobContainerClient(connection_String, "mysecuredeskcontainer");
if (!isForgetPassword)
{
mailMessage.Subject = "OTP for Secure Desk";
//mailMessage.Body = "Otp code is : " + otpString;
//get the refernence to the BlobClient to retrieve the file from the azure blob
BlobClient blobClient = container.GetBlobClient("SecureDeskEmailFormat.html");
//download the file
var response = await blobClient.DownloadAsync();
string htmlBody = "";
//read all the content from the file
using (var streamReader = new StreamReader(response.Value.Content))
{
while (!streamReader.EndOfStream)
{
htmlBody += await streamReader.ReadLineAsync();
}
}
htmlBody = htmlBody.Replace("#userName#", userName);
htmlBody = htmlBody.Replace("#otpNumber#", otpString);
mailMessage.IsBodyHtml = true;
mailMessage.Body = htmlBody;
//Create the smtp Client and send the email to the user
SmtpClient smtpClient = new SmtpClient("smtp.gmail.com", 587);
smtpClient.Credentials = new System.Net.NetworkCredential()
{
//Get the network credntials from the Azure Configuration
UserName = System.Configuration.ConfigurationManager.AppSettings["SecureDeskEmailAddress"],
Password = System.Configuration.ConfigurationManager.AppSettings["SecureDeskEmailPassword"]
};
//Enabling the SSL level of security of the email
smtpClient.EnableSsl = true;
//send the Email to the user
smtpClient.Send(mailMessage);
}
else
{
mailMessage.Subject = "Reset Your Password For Secure Desk Account";
//mailMessage.Body = "Otp code is : " + otpString;
//get the refernence to the BlobClient to retrieve the file from the azure blob
BlobClient blobClient = container.GetBlobClient("ForgetPasswordSecureDeskEmail.html");
//download the file
var response = await blobClient.DownloadAsync();
string htmlBody = "";
//read all the content from the file
using (var streamReader = new StreamReader(response.Value.Content))
{
while (!streamReader.EndOfStream)
{
htmlBody += await streamReader.ReadLineAsync();
}
}
htmlBody = htmlBody.Replace("#userName#", userName);
htmlBody = htmlBody.Replace("#otpNumber#", otpString);
mailMessage.IsBodyHtml = true;
mailMessage.Body = htmlBody;
//Create the smtp Client and send the email to the user
SmtpClient smtpClient = new SmtpClient("smtp.gmail.com", 587);
smtpClient.Credentials = new System.Net.NetworkCredential()
{
//Get the network credntials from the Azure Configuration
UserName = System.Configuration.ConfigurationManager.AppSettings["SecureDeskEmailAddress"],
Password = System.Configuration.ConfigurationManager.AppSettings["SecureDeskEmailPassword"]
};
//Enabling the SSL level of security of the email
smtpClient.EnableSsl = true;
//send the Email to the user
smtpClient.Send(mailMessage);
}
return(true);
}
catch (Exception ex)
{
//catch and throw the exception
throw new Exception(ex.Message);
}
}
