sozsoft-platform/api/src/Sozsoft.Platform.Domain/Identity/TurnstileCaptchaManager.cs

using System;
using System.Text.Json.Serialization;
using System.Threading.Tasks;
using Flurl.Http;
using Sozsoft.Platform.Localization;
using Microsoft.Extensions.Localization;
using Volo.Abp;
using Volo.Abp.ObjectMapping;
using Volo.Abp.Settings;
using Volo.Abp.Users;

namespace Sozsoft.Platform.Identity;

public class TurnstileCaptchaManager : PlatformDomainService, ICaptchaManager
{
    public TurnstileCaptchaManager(
        ISettingProvider settingProvider,
        IStringLocalizer<PlatformResource> localizer,
        ICurrentUser currentUser,
        IObjectMapper objectMapper)
        : base(settingProvider, localizer, currentUser, objectMapper, null)
    {
    }

    public async Task<bool> VerifyCaptchaAsync(string CaptchaResponse, bool throwOnFailure = false)
    {
        if (CaptchaResponse.IsNullOrWhiteSpace())
        {
            return false;
        }

        var endPoint = await SettingProvider.GetOrNullAsync(PlatformConsts.AbpAccount.Captcha.EndPoint);
        var privateKey = await SettingProvider.GetOrNullAsync(PlatformConsts.AbpAccount.Captcha.SecretKey);
        if (endPoint.IsNullOrWhiteSpace() || privateKey.IsNullOrWhiteSpace())
        {
            //alertManager.Alerts.Danger(LK[PlatformConsts.AbpIdentity.User.CaptchaWrongCode]);
            return false;
        }

        //  METHOD: POST
        /*
         * secret=verysecret
         * response=<RESPONSE>
         * remoteip=ip (Optional)
         */

        var response = await endPoint.PostUrlEncodedAsync(new
        {
            secret = privateKey,
            response = CaptchaResponse
        });

        if (response != null && response.StatusCode == 200)
        {
            var result = await response.GetJsonAsync<TurnstileCaptchaVerifyResponse>();
            if (result?.Success != true)
            {
                if (throwOnFailure)
                {
                    throw new UserFriendlyException(Localizer[PlatformConsts.AbpIdentity.User.CaptchaWrongCode]);
                }
            }

            return result?.Success == true;
        }

        return false;
    }

    private class TurnstileCaptchaVerifyResponse
    {
        [JsonPropertyName("success")]
        public bool Success { get; set; }
    }
}