[英]Checking Gmail login credentails in My C# windows form Application?
我已经开始使用 Windows 表单来创建一个小应用程序,用户可以在其中从他们的 gmail 帐户发送电子邮件,当用户在我的登录表单(表单 1)中输入正确的登录凭据时,我可以发送邮件,但如果他输入错误登录表单(表单 1)中的凭据,它进入我的邮件(表单 2)并显示错误,所以我想检查 Gmail 登录凭据..帮我提供代码...
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Mail;
namespace first
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void button2_Click(object sender, EventArgs e)
{
Form1 a = new Form1();
this.Hide();
a.ShowDialog();
this.Close();
}
private void button1_Click(object sender, EventArgs e)
{
SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
client.Credentials = new NetworkCredential(Form3.tb.Text, Form3.tb1.Text);
MailMessage msg = new MailMessage();
msg.To.Add(new MailAddress(To.Text));
msg.From = new MailAddress(From.Text);
msg.Subject = Sub.Text;
msg.Body = Body.Text;
client.EnableSsl = true; //for security in gmail,https kind of
client.Send(msg);
try
{
MessageBox.Show("Mail sent successfully", "Praveen Mail");
}
catch (Exception ex)
{
MessageBox.Show("Mail Sending Failed Due to" + ex.Message, "Praveen Mail");
}
}
}
}
Google 提供了一个 .net api 可以解决您的问题。
https://code.google.com/p/google-api-dotnet-client/wiki/OAuth2
- - - - -编辑 - - - -
第 1 步:注册以使用 google api。 它是免费的,上面的链接描述了这样做的过程。
第二步:实现下面的代码。 我从上面的链接借来的。
using System;
using System.Diagnostics;
using DotNetOpenAuth.OAuth2;
using Google.Apis.Authentication.OAuth2;
using Google.Apis.Authentication.OAuth2.DotNetOpenAuth;
using Google.Apis.Samples.Helper;
using Google.Apis.Tasks.v1;
using Google.Apis.Tasks.v1.Data;
using Google.Apis.Util;
namespace Google.Apis.Samples.TasksOAuth2
{
/// <summary>
/// This sample demonstrates the simplest use case for an OAuth2 service.
/// The schema provided here can be applied to every request requiring authentication.
/// </summary>
public class Program
{
public static void Main(string[] args)
{
// Display the header and initialize the sample.
CommandLine.EnableExceptionHandling();
CommandLine.DisplayGoogleSampleHeader("Tasks API");
// Register the authenticator.
var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description);
provider.ClientIdentifier = "<client id>";
provider.ClientSecret = "<client secret>";
var auth = new OAuth2Authenticator<NativeApplicationClient>(provider, GetAuthorization);
// Create the service.
var service = new TasksService(auth);
TaskLists results = service.Tasklists.List().Fetch();
Console.WriteLine("Lists:");
foreach (TaskList list in results.Items)
{
Console.WriteLine("- " + list.Title);
}
Console.ReadKey();
}
private static IAuthorizationState GetAuthorization(NativeApplicationClient arg)
{
// Get the auth URL:
IAuthorizationState state = new AuthorizationState(new[] { TasksService.Scopes.Tasks.GetStringValue() });
state.Callback = new Uri(NativeApplicationClient.OutOfBandCallbackUrl);
Uri authUri = arg.RequestUserAuthorization(state);
// Request authorization from the user (by opening a browser window):
Process.Start(authUri.ToString());
Console.Write(" Authorization Code: ");
string authCode = Console.ReadLine();
Console.WriteLine();
// Retrieve the access token by using the authorization code:
return arg.ProcessUserAuthorization(authCode, state);
}
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.