質問編集履歴
2
ログイン認証を行うクラスについて記述
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```
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@using Microsoft.AspNetCore.http
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@inject Httpcontext httpcontext
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<ul class="navbar-nav">
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@if ((httpcontext.User.Identity.IsAuthenticated)
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{`
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">Hello @User.Identity.Name!</a>
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</li>
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<li class="nav-item">
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<form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Page("/", new { area = "" })" method="post" >
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<button type="submit" class="nav-link btn btn-link text-dark">Logout</button>
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</form>
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</li>
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</li>
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}
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else
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{
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register">Register</a>
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</li>
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login">Login</a>
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</li>
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}
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</ul>
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```
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ログインを行うクラス
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Linq;
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using System.Security.Claims;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Authentication;
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using Microsoft.AspNetCore.Authentication.Cookies;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using Microsoft.EntityFrameworkCore;
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using WebApp8.Data;
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using WebApp8.Models;
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namespace WebApp8.Pages.Account
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{
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[AllowAnonymous]
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public class LoginModel : PageModel
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{
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private readonly DBsetuzokuContext _context;
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public LoginModel(DBsetuzokuContext context)
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{
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_context = context;
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}
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[BindProperty]
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public InputModel Input { get; set; }
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public class InputModel
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{
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[Required]
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public string LoginID { get; set; }
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[Required]
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[DataType(DataType.Password)]
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public string Password { get; set; }
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[Display(Name = "Remember me?")]
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public bool RememberMe { get; set; }
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}
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[TempData]
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public string ErrorMessage { get; set; }
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public IList<User> User { get; set; }
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public async Task<IActionResult> OnPostAsync(string returnUrl = null)
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{
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if (!ModelState.IsValid) return Page();
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// ==================================================
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// 認証処理
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var result = from u in _context.User
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select u;
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result = result.Where(s => s.UserLoginID == Input.LoginID);
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User = await result.ToListAsync();
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if (User.Count == 0)
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{
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//bool isValid = false;
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return Page();
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}
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if (User[0].Password != Input.Password)
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{
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//bool isValid = true;
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return Page();
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}
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Claim[] claims = {
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new Claim(ClaimTypes.NameIdentifier, Input.LoginID),
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new Claim(ClaimTypes.Name, Input.LoginID),
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};
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// 一意の ID 情報
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var claimsIdentity = new ClaimsIdentity(
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claims, CookieAuthenticationDefaults.AuthenticationScheme);
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// ログイン
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await HttpContext.SignInAsync(
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CookieAuthenticationDefaults.AuthenticationScheme,
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new ClaimsPrincipal(claimsIdentity),
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new AuthenticationProperties
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{
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// Cookie をブラウザー セッション間で永続化するか？（ブラウザを閉じてもログアウトしないかどうか）
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IsPersistent = Input.RememberMe
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});
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return LocalRedirect(returnUrl ?? Url.Content("~/"));
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}
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}
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}
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```
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1
表記が崩れていたので修正しました。
test
CHANGED
|
File without changes
|
test
CHANGED
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@@ -1,6 +1,4 @@
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### 前提・実現したいこと
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4
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3
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ASP.Net Core 3.1でCookie認証を使ってログインを行うページを現在作っております。
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