using Newtonsoft.Json.Linq;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IStation.Application
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{
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/// <summary>
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/// 萤石云辅助类
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/// </summary>
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internal class SzjtYs7Helper
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{
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// https://open.ys7.com/ 账号：15751003281 密码：hq199411
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//API https://open.ys7.com/doc/zh/book/index/live_proto.html
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//AppKey 4dd1ebea34544429b55d0e12fef86156
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//Secret 1c6b63694f25c9ccf52920a6ab52cde7
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//缓存
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private static Dictionary<string, SzjtYs7TokenInfo> _dict = new Dictionary<string, SzjtYs7TokenInfo>();
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/// <summary>
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/// 获取许可
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/// </summary>
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public static string GetAccessToken(string appKey, string appSecret)
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{
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var key = $"{appKey}_{appSecret}";
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if (_dict.ContainsKey(key))
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{
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var tokenInfo = _dict[key];
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if (tokenInfo.ExpireTime != null && DateTime.Now > tokenInfo.ExpireTime && !string.IsNullOrEmpty(tokenInfo.Value))
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{
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return tokenInfo.Value;
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}
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}
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var url = $"https://open.ys7.com/api/lapp/token/get?appKey={appKey}&appSecret={appSecret}";
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var responsetext = string.Empty;
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using (var httpClient = new HttpClient())
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using (var request = new HttpRequestMessage(HttpMethod.Post, url))
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{
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var response = httpClient.SendAsync(request).Result;
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response.EnsureSuccessStatusCode();
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responsetext = response.Content.ReadAsStringAsync().Result;
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}
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JObject dict = JObject.Parse(responsetext);
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JObject data = dict["data"] as Newtonsoft.Json.Linq.JObject;
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var token = new SzjtYs7TokenInfo();
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token.Value = data["accessToken"].ToString();
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long ticks = long.Parse(data["expireTime"].ToString());
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token.ExpireTime = new DateTime(ticks).AddMinutes(-10);
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_dict[key] = token;
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return token.Value;
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}
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/// <summary>
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/// 获取播放地址
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/// </summary>
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public static string GetLiveUrl(string appKey, string appSecret, string verificationCode, string seriesNO, int channelNO)
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{
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var viewToken = GetAccessToken(appKey, appSecret);
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var url = $"https://open.ys7.com/ezopen/h5/iframe?url=ezopen://{verificationCode}@open.ys7.com/{seriesNO}/1.live&autoplay=1&accessToken={viewToken}&channelNo={channelNO}";
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return url;
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}
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}
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}
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