AiDOPWarehouse/Admin.NET/Admin.NET.Core/Service/OAuth/SysOAuthService.cs

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using Microsoft.AspNetCore.Authentication;
using System.Security.Claims;

namespace Admin.NET.Core.Service;

/// <summary>
/// 系统OAuth服务
/// </summary>
[AllowAnonymous]
[ApiDescriptionSettings(Order = 100)]
public class SysOAuthService : IDynamicApiController, ITransient
{
    private readonly IHttpContextAccessor _httpContextAccessor;
    private readonly SqlSugarRepository<SysWechatUser> _sysWechatUserRep;
    private readonly SysUserService _sysUserService;

    public SysOAuthService(IHttpContextAccessor httpContextAccessor,
        SqlSugarRepository<SysWechatUser> sysWechatUserRep,
        SysUserService sysUserService)
    {
        _httpContextAccessor = httpContextAccessor;
        _sysWechatUserRep = sysWechatUserRep;
        _sysUserService = sysUserService;
    }

    /// <summary>
    /// 第三方登录
    /// </summary>
    /// <param name="provider"></param>
    /// <param name="redirectUrl"></param>
    /// <returns></returns>
    [ApiDescriptionSettings(Name = "SignIn"), HttpGet]
    [DisplayName("第三方登录")]
    public async Task<IActionResult> SignIn([FromQuery] string provider, [FromQuery] string redirectUrl)
    {
        if (string.IsNullOrWhiteSpace(provider) || !await _httpContextAccessor.HttpContext.IsProviderSupportedAsync(provider))
            throw Oops.Oh("不支持的OAuth类型");

        var request = _httpContextAccessor.HttpContext.Request;
        var url = $"{request.Scheme}://{request.Host}{request.PathBase}{request.Path}Callback?provider={provider}&redirectUrl={redirectUrl}";
        var properties = new AuthenticationProperties { RedirectUri = url };
        properties.Items["LoginProvider"] = provider;
        return await Task.FromResult(new ChallengeResult(provider, properties));
    }

    /// <summary>
    /// 授权回调
    /// </summary>
    /// <param name="provider"></param>
    /// <param name="redirectUrl"></param>
    /// <returns></returns>
    [ApiDescriptionSettings(Name = "SignInCallback"), HttpGet]
    [DisplayName("授权回调")]
    public async Task<IActionResult> SignInCallback([FromQuery] string provider = null, [FromQuery] string redirectUrl = "")
    {
        if (string.IsNullOrWhiteSpace(provider) || !await _httpContextAccessor.HttpContext.IsProviderSupportedAsync(provider))
            throw Oops.Oh("不支持的OAuth类型");

        var authenticateResult = await _httpContextAccessor.HttpContext.AuthenticateAsync(provider);
        if (!authenticateResult.Succeeded)
            throw Oops.Oh("授权失败");

        var openIdClaim = authenticateResult.Principal.FindFirst(ClaimTypes.NameIdentifier);
        if (openIdClaim == null || string.IsNullOrWhiteSpace(openIdClaim.Value))
            throw Oops.Oh("授权失败");

        if (provider == "Weixin")
        {
        }
        else if (provider == "Gitee")
        {
            string email = authenticateResult.Principal.FindFirst(ClaimTypes.Email)?.Value;
            string name = authenticateResult.Principal.FindFirst(ClaimTypes.Name)?.Value;
            string giteeName = authenticateResult.Principal.FindFirst(GiteeClaims.Name)?.Value;
            string avatarUrl = authenticateResult.Principal.FindFirst(GiteeClaims.AvatarUrl)?.Value;

            // 若账号不存在则新建
            var user = await _sysWechatUserRep.GetFirstAsync(u => u.OpenId == openIdClaim.Value);
            if (user == null)
            {
                var userId = await _sysUserService.AddUser(new AddUserInput()
                {
                    Account = name,
                    RealName = name,
                    NickName = name,
                    Email = email,
                    Avatar = avatarUrl,
                    Phone = "",
                });

                user = await _sysWechatUserRep.InsertReturnEntityAsync(new SysWechatUser()
                {
                    UserId = userId,
                    OpenId = openIdClaim.Value,
                    Avatar = avatarUrl,
                    NickName = name,
                });
            }

            // 构建登录Token


        }

        return new RedirectResult($"{redirectUrl}?openId={openIdClaim.Value}");
    }
}