330 lines
9.9 KiB
C#
330 lines
9.9 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Net.WebSockets;
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using System.Text;
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using System.Threading;
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using UnityEngine;
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public class ChatSpark : LLM
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{
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#region 参数
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/// <summary>
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/// 讯飞的应用设置
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/// </summary>
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[SerializeField] private XunfeiSettings m_XunfeiSettings;
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/// <summary>
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/// 选择星火大模型版本
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/// </summary>
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[Header("选择星火大模型版本")]
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[SerializeField] private ModelType m_SparkModel = ModelType.星火大模型V15;
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#endregion
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private void Awake()
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{
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OnInit();
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}
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/// <summary>
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/// 初始化
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/// </summary>
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private void OnInit()
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{
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m_XunfeiSettings = this.GetComponent<XunfeiSettings>();
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if (m_SparkModel == ModelType.星火大模型V15)
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{
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url= "https://spark-api.xf-yun.com/v1.1/chat";
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return;
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}
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url = "https://spark-api.xf-yun.com/v2.1/chat";
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}
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/// <summary>
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/// 发送消息
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/// </summary>
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/// <returns></returns>
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public override void PostMsg(string _msg, Action<string> _callback)
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{
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base.PostMsg(_msg, _callback);
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}
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/// <summary>
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/// 发送数据
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/// </summary>
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/// <param name="_postWord"></param>
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/// <param name="_callback"></param>
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/// <returns></returns>
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public override IEnumerator Request(string _postWord, System.Action<string> _callback)
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{
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yield return null;
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//处理发送数据
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RequestData requestData = new RequestData();
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requestData.header.app_id = m_XunfeiSettings.m_AppID;
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//判断v1.5还是v2
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requestData.parameter.chat.domain = GetDomain();
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//添加对话列表
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List<PostMsgData> _tempList = new List<PostMsgData>();
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for(int i=0;i<m_DataList.Count;i++)
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{
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PostMsgData _msg = new PostMsgData()
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{
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role = m_DataList[i].role,
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content = m_DataList[i].content
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};
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_tempList.Add(_msg);
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}
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requestData.payload.message.text= _tempList;
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string _json = JsonUtility.ToJson(requestData);
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//websocket连接
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ConnectHost(_json, _callback);
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}
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/// <summary>
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/// 指定访问的领域
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/// general指向V1.5版本
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/// generalv2指向V2版本
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/// </summary>
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/// <returns></returns>
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private string GetDomain()
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{
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if (m_SparkModel == ModelType.星火大模型V15)
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return "general";
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return "generalv2";
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}
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#region 获取鉴权Url
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/// <summary>
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/// 获取鉴权url
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/// </summary>
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/// <returns></returns>
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private string GetAuthUrl()
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{
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string date = DateTime.UtcNow.ToString("r");
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Uri uri = new Uri(url);
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StringBuilder builder = new StringBuilder("host: ").Append(uri.Host).Append("\n").//
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Append("date: ").Append(date).Append("\n").//
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Append("GET ").Append(uri.LocalPath).Append(" HTTP/1.1");
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string sha = HMACsha256(m_XunfeiSettings.m_APISecret, builder.ToString());
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string authorization = string.Format("api_key=\"{0}\", algorithm=\"{1}\", headers=\"{2}\", signature=\"{3}\"", m_XunfeiSettings.m_APIKey, "hmac-sha256", "host date request-line", sha);
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string NewUrl = "https://" + uri.Host + uri.LocalPath;
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string path1 = "authorization" + "=" + Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(authorization));
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date = date.Replace(" ", "%20").Replace(":", "%3A").Replace(",", "%2C");
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string path2 = "date" + "=" + date;
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string path3 = "host" + "=" + uri.Host;
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NewUrl = NewUrl + "?" + path1 + "&" + path2 + "&" + path3;
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return NewUrl;
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}
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public string HMACsha256(string apiSecretIsKey, string buider)
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{
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byte[] bytes = System.Text.Encoding.UTF8.GetBytes(apiSecretIsKey);
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System.Security.Cryptography.HMACSHA256 hMACSHA256 = new System.Security.Cryptography.HMACSHA256(bytes);
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byte[] date = System.Text.Encoding.UTF8.GetBytes(buider);
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date = hMACSHA256.ComputeHash(date);
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hMACSHA256.Clear();
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return Convert.ToBase64String(date);
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}
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#endregion
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#region websocket连接
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/// <summary>
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/// websocket
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/// </summary>
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private ClientWebSocket m_WebSocket;
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private CancellationToken m_CancellationToken;
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/// <summary>
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/// 连接服务器，获取回复
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/// </summary>
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private async void ConnectHost(string text,Action<string> _callback)
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{
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try
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{
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stopwatch.Restart();
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m_WebSocket = new ClientWebSocket();
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m_CancellationToken = new CancellationToken();
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string authUrl = GetAuthUrl();
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string url = authUrl.Replace("http://", "ws://").Replace("https://", "wss://");
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//Uri uri = new Uri(GetUrl());
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Uri uri = new Uri(url);
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await m_WebSocket.ConnectAsync(uri, m_CancellationToken);
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//发送json
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string _jsonData = text;
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await m_WebSocket.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(_jsonData)), WebSocketMessageType.Binary, true, m_CancellationToken); //发送数据
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StringBuilder sb = new StringBuilder();
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//用于拼接返回的答复
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string _callBackMessage = "";
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//播放队列.Clear();
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while (m_WebSocket.State == WebSocketState.Open)
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{
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var result = new byte[4096];
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await m_WebSocket.ReceiveAsync(new ArraySegment<byte>(result), m_CancellationToken);//接受数据
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List<byte> list = new List<byte>(result); while (list[list.Count - 1] == 0x00) list.RemoveAt(list.Count - 1);//去除空字节
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var str = Encoding.UTF8.GetString(list.ToArray());
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sb.Append(str);
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if (str.EndsWith("}"))
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{
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//获取返回的数据
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ResponseData _responseData = JsonUtility.FromJson<ResponseData>(sb.ToString());
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sb.Clear();
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if (_responseData.header.code != 0)
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{
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//返回错误
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//PrintErrorLog(_responseData.code);
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Debug.Log("错误码：" + _responseData.header.code);
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m_WebSocket.Abort();
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break;
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}
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//没有回复数据
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if (_responseData.payload.choices.text.Count == 0)
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{
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Debug.LogError("没有获取到回复的信息！");
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m_WebSocket.Abort();
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break;
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}
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//拼接回复的数据
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_callBackMessage += _responseData.payload.choices.text[0].content;
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if (_responseData.payload.choices.status == 2)
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{
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stopwatch.Stop();
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Debug.Log("ChatSpark耗时：" + stopwatch.Elapsed.TotalSeconds);
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//添加记录
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m_DataList.Add(new SendData("assistant", _callBackMessage));
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//回调
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_callback(_callBackMessage);
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m_WebSocket.Abort();
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break;
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}
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}
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}
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}
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catch (Exception ex)
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{
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Debug.LogError("报错信息: " + ex.Message);
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m_WebSocket.Dispose();
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}
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}
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#endregion
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#region 数据定义
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//发送的数据
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[Serializable]
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private class RequestData
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{
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public HeaderData header=new HeaderData();
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public ParameterData parameter = new ParameterData();
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public MessageData payload = new MessageData();
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}
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[Serializable]
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private class HeaderData
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{
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public string app_id = string.Empty;//必填
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public string uid="admin";//选填，用户的ID
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}
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[Serializable]
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private class ParameterData
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{
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public ChatParameter chat=new ChatParameter();
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}
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[Serializable]
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private class ChatParameter
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{
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public string domain = "general";
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public float temperature = 0.5f;
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public int max_tokens = 1024;
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}
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[Serializable]
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private class MessageData
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{
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public TextData message=new TextData();
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}
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[Serializable]
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private class TextData
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{
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public List<PostMsgData> text = new List<PostMsgData>();
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}
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[Serializable]
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private class PostMsgData
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{
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public string role = string.Empty;
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public string content = string.Empty;
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}
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//接收的数据
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[Serializable]
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private class ResponseData
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{
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public ReHeaderData header = new ReHeaderData();
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public PayloadData payload = new PayloadData();
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}
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[Serializable]
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private class ReHeaderData{
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public int code;//错误码，0表示正常，非0表示出错
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public string message=string.Empty;//会话是否成功的描述信息
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public string sid=string.Empty;
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public int status;//会话状态，取值为[0,1,2]；0代表首次结果；1代表中间结果；2代表最后一个结果
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}
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[Serializable]
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private class PayloadData
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{
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public ChoicesData choices = new ChoicesData();
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//usage 暂时没用，需要的话自行拓展
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}
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[Serializable]
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private class ChoicesData
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{
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public int status;
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public int seq;
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public List<ReTextData> text = new List<ReTextData>();
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}
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[Serializable]
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private class ReTextData
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{
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public string content = string.Empty;
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public string role = string.Empty;
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public int index;
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}
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private enum ModelType
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{
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星火大模型V15,
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星火大模型V20
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}
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#endregion
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}
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