修改机器码的验证，抽象通用方法

添加 OpenAI 格式的 流式转发接口 保持返回的数据格式

LMS.service/Service/ForwardWordService.cs

@@ -1,24 +1,30 @@
-using LMS.DAO;
+using Betalgo.Ranul.OpenAI;
+using Betalgo.Ranul.OpenAI.Managers;
+using Betalgo.Ranul.OpenAI.ObjectModels.RequestModels;
+using LMS.Common.Extensions;
+using LMS.DAO;
 using LMS.Repository.DB;
 using LMS.Repository.Forward;
+using LMS.Repository.Model;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using Newtonsoft.Json;
-using static LMS.Common.Enums.ResponseCodeEnum;
 using System.Net;
+using System.Net.Http.Headers;
 using System.Text;
-using LMS.Repository.Model;
-using Betalgo.Ranul.OpenAI.Managers;
-using Betalgo.Ranul.OpenAI;
-using Betalgo.Ranul.OpenAI.ObjectModels.RequestModels;
-using LMS.Common.Extensions;
+using static LMS.Common.Enums.ResponseCodeEnum;
+using static LMS.service.Controllers.ForwardController;
 
 namespace LMS.service.Service;
 
-public class ForwardWordService(ApplicationDbContext context)
+public class ForwardWordService(ApplicationDbContext context, IHttpClientFactory httpClientFactory, MachineService machineService)
 {
     private readonly ApplicationDbContext _context = context;
 
+    private readonly IHttpClientFactory _httpClientFactory = httpClientFactory;
+
+    private readonly MachineService _machineService = machineService;
+
     #region 非流转发接口，需要系统数据
     /// <summary>
     /// 转发OpenAi格式的请求 非流
@@ -228,7 +234,84 @@ public class ForwardWordService(ApplicationDbContext context)
         }
     }
 
-    #endregion 
+
+    #endregion
+    #region OpenAI 格式流式返回接口（保留接口），需要系统数据
+
+    public async Task<HttpResponseMessage> ForwardWordStreamRaw(ForwardModel request)
+    {
+        // --- 1. 基础校验 (保持原有逻辑) ---
+        if (string.IsNullOrEmpty(request.Word)) throw new Exception("参数错误");
+        if (string.IsNullOrEmpty(request.GptUrl)) throw new Exception("请求的url为空");
+
+        var allowedUrls = new[] {
+        "https://ark.cn-beijing.volces.com",
+        "https://api.moonshot.cn",
+        "https://laitool.net",
+        "https://api.laitool.cc",
+        "https://laitool.cc",
+        "https://zhiluoai.net"
+    };
+
+        // 简单的校验逻辑优化
+        if (!allowedUrls.Any(url => request.GptUrl.StartsWith(url)))
+        {
+            throw new Exception("请求的url不合法");
+        }
+
+        // 校验机器码
+        Machine? machine = await _machineService.GetActiveMachineByMachineId(request.MachineId);
+        if (machine == null)
+        {
+            throw new Exception("机器码不存在或已过期");
+        }
+
+        // --- 2. 获取提示词预设 (保持原有逻辑) ---
+        Prompt? prompt = await _context.Prompt.FirstOrDefaultAsync(x => x.PromptTypeId == request.PromptTypeId && x.Id == request.PromptId);
+        if (prompt == null)
+        {
+            throw new Exception("FindPromptStringFail"); // 建议使用具体错误码
+        }
+
+        // --- 3. 手动构建 OpenAI 格式的请求体 ---
+        // SDK 帮你做了这一步，现在我们要自己做，以便获得原始流
+        var payload = new
+        {
+            model = request.Model,
+            messages = new List<object>
+        {
+            new { role = "system", content = prompt.PromptString },
+            new { role = "user", content = request.Word }
+        },
+            stream = true, // 必须开启流式
+                           // max_tokens = 2000, // 如果有需要可以加其他参数
+                           // temperature = 0.7
+        };
+
+        var jsonContent = JsonConvert.SerializeObject(payload, new JsonSerializerSettings { ContractResolver = new LowercaseContractResolver() });
+        var httpContent = new StringContent(jsonContent, Encoding.UTF8, "application/json");
+
+        // --- 4. 发起 HTTP 请求 ---
+        var client = _httpClientFactory.CreateClient(); // 或者直接 new HttpClient();
+
+        // 拼接完整的 API 地址，通常 OpenAI 兼容接口的路径是 /v1/chat/completions
+        // 注意处理 request.GptUrl 结尾是否有 / 的情况
+        var baseUrl = request.GptUrl.TrimEnd('/');
+        var targetUrl = $"{baseUrl}/v1/chat/completions";
+
+        var requestMessage = new HttpRequestMessage(HttpMethod.Post, targetUrl);
+        requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", request.ApiKey);
+        requestMessage.Content = httpContent;
+
+        // *** 关键点：使用 HttpCompletionOption.ResponseHeadersRead ***
+        // 这表示一旦读到响应头就返回，不要等待整个 Body 下载完成，这样才能实现流式转发
+        var response = await client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead);
+
+        return response;
+    }
+
+    #endregion
+
 
     #region Get直接转发接口
     internal async Task<ActionResult<APIResponseModel<object>>> GetTransfer(GetTransferModel getTransferModel)