kolosovpetro · December 31, 2021 17:21
diff --git a/GmailSmtpSenderService.cs b/GmailSmtpSenderService.cs
 using MangoAPI.Application.Interfaces;
 using MangoAPI.Domain.Constants;
 using MangoAPI.Domain.Entities;
 using System;
 using System.Net;
 using System.Net.Mail;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;

 namespace MangoAPI.Application.Services
 {
    public class GmailSmtpSenderService : IEmailSenderService
    {
        public async Task SendVerificationEmailAsync(UserEntity user, CancellationToken cancellationToken)
        {
            var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
            var smtpClient = GetGmailSmtpClient();

            var verificationMessage = EmailMessages.GetVerificationMessage(senderEmail, user);

            await smtpClient.SendMailAsync(verificationMessage, cancellationToken);
        }

        public async Task SendPasswordRestoreRequest(UserEntity user, Guid requestId,
            CancellationToken cancellationToken)
        {
            var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
            var smtpClient = GetGmailSmtpClient();

            var verificationMessage = EmailMessages.GetPasswordRestoreMessage(senderEmail, user, requestId);

            await smtpClient.SendMailAsync(verificationMessage, cancellationToken);
        }

        private static SmtpClient GetGmailSmtpClient()
        {
            var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
            var senderPassword = EnvironmentConstants.MangoEmailNotificationsPassword;
            var credentials = new NetworkCredential(senderEmail, senderPassword);

            var smtpClient = new SmtpClient
            {
                EnableSsl = true,
                UseDefaultCredentials = false,
                Credentials = credentials,
                Host = GmailConstants.GmailSmtpHost,
                Port = GmailConstants.GmailPort,
                DeliveryMethod = SmtpDeliveryMethod.Network
            };

            return smtpClient;
        }
    }

    public static class EmailMessages
    {
        public static MailMessage GetVerificationMessage(string senderEmail, UserEntity user)
        {
            var fromAddress = new MailAddress(senderEmail);
            var toAddress = new MailAddress(user.Email, user.DisplayName, Encoding.UTF8);

            var message = new MailMessage(fromAddress, toAddress)
            {
                Subject = "Email Verification",
                SubjectEncoding = Encoding.UTF8,
            };

            var body = GenerateEmailConfirmBody(user);

            message.IsBodyHtml = true;
            message.BodyEncoding = Encoding.UTF8;

            message.Body = body;

            return message;
        }

        private static string GenerateEmailConfirmBody(UserEntity user)
        {
            var body =
                "<!DOCTYPE html>" +
                "<head>" +
                "<meta charset='utf-8'>" +
                "</head>" +
                "<body>" +
                $"<p>Hi, {user.DisplayName}, please follow this link.</p>" +
                "<br>" +
                $"<a href='{EnvironmentConstants.MangoFrontendAddress}/verify-email?email={user.Email}&emailCode={user.EmailCode}'>" +
                "Verify email" +
                "</a>" +
                "<br>" +
                $"<p>Confirmation Code: {user.EmailCode}</p>" +
                "</body>";
            
            return body;
        }

        public static MailMessage GetPasswordRestoreMessage(string senderEmail, UserEntity user, Guid requestId)
        {
            var fromAddress = new MailAddress(senderEmail);
            var toAddress = new MailAddress(user.Email, user.DisplayName, Encoding.UTF8);

            var message = new MailMessage(fromAddress, toAddress)
            {
                Subject = "Password Restore Request",
                SubjectEncoding = Encoding.UTF8,
            };

            var body = GeneratePasswordRestoreRequestBody(user, requestId);

            message.IsBodyHtml = true;
            message.BodyEncoding = Encoding.UTF8;

            message.Body = body;

            return message;
        }

        private static string GeneratePasswordRestoreRequestBody(UserEntity user, Guid requestId)
        {
            var body =
                "<!DOCTYPE html>" +
                "<head>" +
                "<meta charset='utf-8'>" +
                "</head>" +
                "<body>" +
                $"<p>Hi, {user.DisplayName}, please follow the link to restore password.</p>" +
                "<br>" +
                $"<a href='{EnvironmentConstants.MangoFrontendAddress}restore-password-form?requestId={requestId}'>" +
                "Restore Password" +
                "</a>" +
                "<br>" +
                $"<p>Request ID: {requestId}.</p>" +
                "</body>";
            
            
            return body;
        }
    }
 }
	using MangoAPI.Application.Interfaces;
	using MangoAPI.Domain.Constants;
	using MangoAPI.Domain.Entities;
	using System;
	using System.Net;
	using System.Net.Mail;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;

	namespace MangoAPI.Application.Services
	{
	public class GmailSmtpSenderService : IEmailSenderService
	{
	public async Task SendVerificationEmailAsync(UserEntity user, CancellationToken cancellationToken)
	{
	var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
	var smtpClient = GetGmailSmtpClient();

	var verificationMessage = EmailMessages.GetVerificationMessage(senderEmail, user);

	await smtpClient.SendMailAsync(verificationMessage, cancellationToken);
	}

	public async Task SendPasswordRestoreRequest(UserEntity user, Guid requestId,
	CancellationToken cancellationToken)
	{
	var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
	var smtpClient = GetGmailSmtpClient();

	var verificationMessage = EmailMessages.GetPasswordRestoreMessage(senderEmail, user, requestId);

	await smtpClient.SendMailAsync(verificationMessage, cancellationToken);
	}

	private static SmtpClient GetGmailSmtpClient()
	{
	var senderEmail = EnvironmentConstants.MangoEmailNotificationsAddress;
	var senderPassword = EnvironmentConstants.MangoEmailNotificationsPassword;
	var credentials = new NetworkCredential(senderEmail, senderPassword);

	var smtpClient = new SmtpClient
	{
	EnableSsl = true,
	UseDefaultCredentials = false,
	Credentials = credentials,
	Host = GmailConstants.GmailSmtpHost,
	Port = GmailConstants.GmailPort,
	DeliveryMethod = SmtpDeliveryMethod.Network
	};

	return smtpClient;
	}
	}

	public static class EmailMessages
	{
	public static MailMessage GetVerificationMessage(string senderEmail, UserEntity user)
	{
	var fromAddress = new MailAddress(senderEmail);
	var toAddress = new MailAddress(user.Email, user.DisplayName, Encoding.UTF8);

	var message = new MailMessage(fromAddress, toAddress)
	{
	Subject = "Email Verification",
	SubjectEncoding = Encoding.UTF8,
	};

	var body = GenerateEmailConfirmBody(user);

	message.IsBodyHtml = true;
	message.BodyEncoding = Encoding.UTF8;

	message.Body = body;

	return message;
	}

	private static string GenerateEmailConfirmBody(UserEntity user)
	{
	var body =
	"<!DOCTYPE html>" +
	"<head>" +
	"<meta charset='utf-8'>" +
	"</head>" +
	"<body>" +
	$"<p>Hi, {user.DisplayName}, please follow this link.</p>" +
	"<br>" +
	$"<a href='{EnvironmentConstants.MangoFrontendAddress}/verify-email?email={user.Email}&emailCode={user.EmailCode}'>" +
	"Verify email" +
	"</a>" +
	"<br>" +
	$"<p>Confirmation Code: {user.EmailCode}</p>" +
	"</body>";

	return body;
	}

	public static MailMessage GetPasswordRestoreMessage(string senderEmail, UserEntity user, Guid requestId)
	{
	var fromAddress = new MailAddress(senderEmail);
	var toAddress = new MailAddress(user.Email, user.DisplayName, Encoding.UTF8);

	var message = new MailMessage(fromAddress, toAddress)
	{
	Subject = "Password Restore Request",
	SubjectEncoding = Encoding.UTF8,
	};

	var body = GeneratePasswordRestoreRequestBody(user, requestId);

	message.IsBodyHtml = true;
	message.BodyEncoding = Encoding.UTF8;

	message.Body = body;

	return message;
	}

	private static string GeneratePasswordRestoreRequestBody(UserEntity user, Guid requestId)
	{
	var body =
	"<!DOCTYPE html>" +
	"<head>" +
	"<meta charset='utf-8'>" +
	"</head>" +
	"<body>" +
	$"<p>Hi, {user.DisplayName}, please follow the link to restore password.</p>" +
	"<br>" +
	$"<a href='{EnvironmentConstants.MangoFrontendAddress}restore-password-form?requestId={requestId}'>" +
	"Restore Password" +
	"</a>" +
	"<br>" +
	$"<p>Request ID: {requestId}.</p>" +
	"</body>";


	return body;
	}
	}
	}
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