66 lines
2.0 KiB
C#
66 lines
2.0 KiB
C#
using System;
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using System.Threading.Tasks;
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using System.Net.Http;
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using LeanCloud.Storage.Internal;
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using LeanCloud.Common;
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using Newtonsoft.Json;
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namespace LeanCloud.Realtime.Internal.Router {
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/// <summary>
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/// RTM Router
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/// </summary>
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internal class LCRTMRouter {
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private const int REQUEST_TIMEOUT = 10000;
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private LCRTMServer rtmServer;
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internal LCRTMRouter() {
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}
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/// <summary>
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/// 获取服务器地址
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/// </summary>
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/// <returns></returns>
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internal async Task<LCRTMServer> GetServer() {
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if (rtmServer == null || !rtmServer.IsValid) {
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await Fetch();
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}
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return rtmServer;
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}
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/// <summary>
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/// 重置服务器地址缓存
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/// </summary>
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internal void Reset() {
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rtmServer = null;
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}
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async Task<LCRTMServer> Fetch() {
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string server = await LCApplication.AppRouter.GetRealtimeServer();
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string url = $"{server}/v1/route?appId={LCApplication.AppId}&secure=1";
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HttpRequestMessage request = new HttpRequestMessage {
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RequestUri = new Uri(url),
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Method = HttpMethod.Get
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};
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HttpClient client = new HttpClient();
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LCHttpUtils.PrintRequest(client, request);
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Task<HttpResponseMessage> requestTask = client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
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if (await Task.WhenAny(requestTask, Task.Delay(REQUEST_TIMEOUT)) != requestTask) {
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throw new TimeoutException("Request timeout.");
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}
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HttpResponseMessage response = await requestTask;
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request.Dispose();
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string resultString = await response.Content.ReadAsStringAsync();
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response.Dispose();
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LCHttpUtils.PrintResponse(response, resultString);
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rtmServer = JsonConvert.DeserializeObject<LCRTMServer>(resultString, new LCJsonConverter());
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return rtmServer;
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}
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}
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}
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