using Azure;
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using Consul;
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using Furion;
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using Furion.DatabaseAccessor;
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using Furion.FriendlyException;
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using Furion.HttpRemote;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Caching.Distributed;
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using RabbitMQ.Client;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Design;
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using System.Linq;
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using System.Net.Http;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace FlexJobApi.Core
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{
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public static class ResourceHttpUtils
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{
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public static async Task<string> SendHttpAsync(this object request, string serviceName, string route, EnumResourceMethod method, EnumResourceHttpProvider? provider = null)
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{
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serviceName = App.GetConfig<string>($"{serviceName}:ServiceName");
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var url = await GetUrl(serviceName, route);
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var builder = HttpRequestBuilder.Create(method.GetMethod(), url);
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if (method == EnumResourceMethod.Get)
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builder = builder.WithQueryParameters(request);
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else
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builder = builder.SetJsonContent(request);
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IResourceHttpProvider httpProvider =
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provider == EnumResourceHttpProvider.SystemUser
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? new SystemUserResourceHttpProvider()
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: provider == EnumResourceHttpProvider.ElectronSignServer
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? new ElectronSignServerResourceHttpProvider()
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: provider == EnumResourceHttpProvider.ElectronSignServerCustomer
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? new ElectronSignServerCustomerResourceHttpProvider()
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: new DefaultResourceHttpProvider();
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var response = await httpProvider.SendAsStringAsync(builder);
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return response;
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}
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public static async Task<TResponse> SendHttpAsync<TRequest, TResponse>(this TRequest request, EnumResourceHttpProvider? provider = null)
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{
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var requestType = typeof(TRequest);
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var resourceAttribute = requestType.GetCustomAttribute<ResourceAttribute>();
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if (resourceAttribute == null) throw Oops.Oh(EnumErrorCodeType.s400, "缺失资源特性");
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var controller = resourceAttribute.Controllers.FirstOrDefault();
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var resourceControllerAttribute = controller.GetCustomAttribute<EnumResourceController, ResourceControllerAttribute>();
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if (resourceAttribute == null) throw Oops.Oh(EnumErrorCodeType.s400, "缺失控制器特性");
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var serviceName = resourceControllerAttribute.Service.ToString();
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var route = resourceAttribute.Route;
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var method = resourceAttribute.Method;
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var requestXmlDoc = await requestType.GetXmlDocMemberAsync();
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if (route.IsNull() || method == EnumResourceMethod.None)
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{
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var resource = await Db.GetRepository<Resource>().AsQueryable().AsNoTracking()
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.Where(it =>
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it.ServiceName == serviceName
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&& it.ControllerName == resourceControllerAttribute.ControllerName
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&& it.Code == requestXmlDoc.Name)
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.Select(it => new
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{
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it.Route,
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it.Method
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})
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.FirstOrDefaultAsync();
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if (resource == null) throw Oops.Oh(EnumErrorCodeType.s404, "资源");
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route = resource.Route;
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method = resource.Method;
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}
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var responseJson = await request.SendHttpAsync(serviceName, route, method, provider);
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var response = responseJson.JsonTo<TResponse>();
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return response;
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}
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public static HttpMethod GetMethod(this EnumResourceMethod method)
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{
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switch (method)
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{
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case EnumResourceMethod.Get:
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return HttpMethod.Get;
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case EnumResourceMethod.Post:
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return HttpMethod.Post;
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case EnumResourceMethod.Put:
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return HttpMethod.Put;
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case EnumResourceMethod.Delete:
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return HttpMethod.Delete;
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default:
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throw Oops.Oh(EnumErrorCodeType.s400, "不支持的请求类型");
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}
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}
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public static async Task<string> GetUrl(string serviceName, string route)
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{
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var domain = await GetHealthyServiceDomain(serviceName);
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return $"{domain}{route}";
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}
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/// <summary>
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/// 获取健康服务域名
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/// </summary>
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/// <param name="serviceName"></param>
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/// <returns></returns>
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public static async Task<string> GetHealthyServiceDomain(string serviceName)
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{
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var env = App.GetConfig<string>("Environment");
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serviceName = $"{env}_{serviceName}";
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var queryResult = await App.GetRequiredService<IConsulClient>().Health.Service(serviceName, null, true);
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if (queryResult.StatusCode != System.Net.HttpStatusCode.OK)
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throw Oops.Oh(EnumErrorCodeType.s404, $"微服务{serviceName}");
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var domains = queryResult.Response
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.Select(s => $"http://{s.Service.Address}:{s.Service.Port}")
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.ToList();
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if (domains.IsNull())
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throw Oops.Oh(EnumErrorCodeType.s404, $"微服务{serviceName}");
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// 轮询选择实例
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int randomIndex = new Random().Next(domains.Count);
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return domains[randomIndex];
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}
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}
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}
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