修改文件上传 添加文件转存

LMS.Repository/DTO/FileUploadDto.cs

@@ -17,6 +17,19 @@ namespace LMS.Repository.DTO
             public Dictionary<string, string> Metadata { get; set; } = new();
         }
 
+        /// <summary>
+        /// URL上传请求
+        /// </summary>
+        public class UrlUploadRequest
+        {
+            [Required]
+            [Url]
+            public required string Url { get; set; }
+            
+            [Required]
+            public required string FileName { get; set; }
+        }
+
         public class UploadResult
         {
             public bool Success { get; set; }

LMS.Repository/DTO/PromptDto/PromptNameDto.cs

@@ -9,4 +9,6 @@ public class PromptNameDto
     public string PromptTypeId { get; set; }
 
     public string? Remark { get; set; }
+
+    public string? Description { get; set; }
 }

LMS.Tools/FileTool/FileService.cs

@@ -0,0 +1,70 @@
+using LMS.DAO.OptionDAO;
+using LMS.Tools.ImageTool;
+using static LMS.Repository.DTO.FileUploadDto;
+
+namespace LMS.Tools.FileTool
+{
+    public static class FileService
+    {
+        public static byte[]? ConvertBase64ToBytes(string base64String)
+        {
+            if (string.IsNullOrEmpty(base64String))
+            {
+                return null;
+            }
+            // 检查是否以 "data:" 开头并包含 base64 编码，如果是则提取实际的 base64 部分
+            if (base64String.StartsWith("data:"))
+            {
+                // 提取 base64 编码部分
+                var commaIndex = base64String.IndexOf(',');
+                if (commaIndex >= 0)
+                {
+                    base64String = base64String.Substring(commaIndex + 1);
+                }
+            }
+            try
+            {
+                // 尝试将 base64 字符串转换为字节数组
+                return Convert.FromBase64String(base64String);
+            }
+            catch (FormatException)
+            {
+                // 如果格式不正确，返回 null
+                return null;
+            }
+        }
+
+        public static bool IsValidImageFile(byte[] fileBytes)
+        {
+            if (fileBytes == null || fileBytes.Length == 0)
+            {
+                return false;
+            }
+
+            return ImageTypeDetector.IsValidImage(fileBytes);
+        }
+
+        public static async Task<UploadResult> CheckFileSize(byte[] fileBytes, double MaxFileSize)
+        {
+            if (fileBytes == null || fileBytes.Length == 0)
+            {
+                return new UploadResult
+                {
+                    Success = false,
+                    Message = "文件不能为空"
+                };
+            }
+
+            if (fileBytes.Length > MaxFileSize * 1024 * 1024)
+            {
+                return new UploadResult
+                {
+                    Success = false,
+                    Message = $"文件大小({fileBytes.Length} bytes)超过限制({MaxFileSize * 1024 * 1024} bytes)"
+                };
+            }
+
+            return new UploadResult { Success = true };
+        }
+    }
+}

LMS.Tools/FileTool/IQiniuService.cs

@@ -0,0 +1,60 @@
+using LMS.Repository.DB;
+using LMS.Repository.FileUpload;
+using Qiniu.Http;
+using static LMS.Repository.DTO.FileUploadDto;
+
+namespace LMS.Tools.FileTool
+{
+    public interface IQiniuService
+    {
+        /// <summary>
+        /// 检查文件的字节大小是否符合要求
+        /// </summary>
+        /// <param name="fileBytes"></param>
+        /// <returns></returns>
+        public Task<UploadResult> CheckFileBytesSize(byte[] fileBytes);
+
+        /// <summary>
+        /// 生成七牛云上传的路径 key
+        /// </summary>
+        /// <param name="userId"></param>
+        /// <param name="fileName"></param>
+        /// <returns></returns>
+        string GenerateFileKey(long userId, string fileName);
+
+        /// <summary>
+        /// 计算文件的 SHA1 哈希值
+        /// </summary>
+        /// <param name="data"></param>
+        /// <returns></returns>
+        string ComputeSHA1Hash(byte[] data);
+
+        /// <summary>
+        /// 获取七牛云的配置 用于上传图片
+        /// </summary>
+        /// <returns></returns>
+        Task<QiniuSettings> InitQiniuSetting();
+
+        /// <summary>
+        /// 生成七牛的上传凭证
+        /// </summary>
+        /// <param name="qiniuSettings"></param>
+        /// <returns></returns>
+        string GeneratePolicy(QiniuSettings qiniuSettings);
+
+        /// <summary>
+        /// 将 byte 数组上传到七牛云
+        /// </summary>
+        /// <param name="fileBytes"></param>
+        /// <returns></returns>
+        Task<FileUploads> UploadFileToQiNiu(byte[] fileBytes, long userId, string fileName, string fileKey);
+
+        /// <summary>
+        /// 构建文件的访问 URL
+        /// </summary>
+        /// <param name="domain"></param>
+        /// <param name="fileKey"></param>
+        /// <returns></returns>
+        string BuildFileUrl(string domain, string fileKey);
+    }
+}

LMS.Tools/FileTool/QiniuService.cs

@@ -0,0 +1,135 @@
+using LMS.Common.Extensions;
+using LMS.DAO.OptionDAO;
+using LMS.Repository.DB;
+using LMS.Repository.FileUpload;
+using Microsoft.Extensions.Logging;
+using Qiniu.Http;
+using Qiniu.IO;
+using Qiniu.IO.Model;
+using Qiniu.Util;
+using System.Security.Cryptography;
+using static LMS.Repository.DTO.FileUploadDto;
+
+namespace LMS.Tools.FileTool
+{
+    public class QiniuService(OptionGlobalDAO optionGlobalDAO, ILogger<QiniuService> logger) : IQiniuService
+    {
+        private readonly OptionGlobalDAO _optionGlobalDAO = optionGlobalDAO;
+        private readonly UploadManager _uploadManager = new UploadManager();
+        private readonly ILogger<QiniuService> _logger = logger;
+
+        /// <summary>
+        /// 检查文件的字节大小是否符合要求
+        /// </summary>
+        /// <param name="fileBytes"></param>
+        /// <returns></returns>
+        public async Task<UploadResult> CheckFileBytesSize(byte[] fileBytes)
+        {
+            if (fileBytes == null || fileBytes.Length == 0)
+            {
+                return new UploadResult
+                {
+                    Success = false,
+                    Message = "文件字节数据不能为空"
+                };
+            }
+
+            double MaxFileSize = await _optionGlobalDAO.FindAndReturnOption<double>("SYS_MaxUploadFileSize");
+
+            if (fileBytes.Length > MaxFileSize * 1024 * 1024)
+            {
+                return new UploadResult
+                {
+                    Success = false,
+                    Message = $"文件大小不能超过 {MaxFileSize}MB"
+                };
+            }
+
+            return new UploadResult { Success = true, Message = string.Empty };
+        }
+
+        public string ComputeSHA1Hash(byte[] data)
+        {
+            var hash = SHA1.HashData(data);
+            return Convert.ToHexString(hash).ToLower();
+        }
+
+        public string GenerateFileKey(long userId, string fileName)
+        {
+            var date = DateTime.Now.ToString("yyyyMMdd");
+            //var extension = Path.GetExtension(fileName);
+            return $"user/{userId}/{date}/{fileName}";
+        }
+
+        public async Task<QiniuSettings> InitQiniuSetting()
+        {
+            QiniuSettings? qiniuSettings = await _optionGlobalDAO.FindAndReturnOption<QiniuSettings>("SYS_QiniuSetting");
+
+            if (qiniuSettings == null || string.IsNullOrEmpty(qiniuSettings.AccessKey) || string.IsNullOrEmpty(qiniuSettings.SecretKey) || string.IsNullOrEmpty(qiniuSettings.BucketName) || string.IsNullOrEmpty(qiniuSettings.Domain))
+            {
+                throw new Exception("七牛云配置不完整，请检查配置，请联系管理员");
+            }
+            return qiniuSettings;
+        }
+
+        public string GeneratePolicy(QiniuSettings qiniuSettings)
+        {
+            Mac mac = new(qiniuSettings.AccessKey, qiniuSettings.SecretKey);
+            var putPolicy = new PutPolicy
+            {
+                Scope = qiniuSettings.BucketName
+            };
+            if (qiniuSettings.DeleteDay != null)
+            {
+                putPolicy.DeleteAfterDays = qiniuSettings.DeleteDay.Value; // 设置过期时间
+            }
+            putPolicy.SetExpires(3600);
+            string token = Auth.CreateUploadToken(mac, putPolicy.ToJsonString());
+            return token;
+        }
+
+        public string BuildFileUrl(string domain, string fileKey)
+        {
+            return $"{domain}/{fileKey}";
+        }
+
+        public async Task<FileUploads> UploadFileToQiNiu(byte[] fileBytes, long userId, string fileName, string fileKey)
+        {
+            QiniuSettings qiniuSettings = await InitQiniuSetting();
+            string token = GeneratePolicy(qiniuSettings);
+            string hash = ComputeSHA1Hash(fileBytes);
+            HttpResult uploadResult;
+
+            _logger.LogInformation("开始上传文件, 用户ID: {userId}, 文件名: {fileName}, 文件大小: {fileLength} 字节, 文件Key: {fileKey}", userId, fileName, fileBytes.Length, fileKey);
+
+            using (var stream = new MemoryStream(fileBytes))
+            {
+                uploadResult = await _uploadManager.UploadStreamAsync(stream, fileKey, token);
+            }
+            // 8. 检查上传结果
+            if (uploadResult.Code != 200)
+            {
+                _logger.LogError("文件上传失败, 上传用户ID: {userId}, 错误信息: {error}", userId, uploadResult.Text);
+                throw new Exception(uploadResult.Text);
+            }
+
+            var qiniuUrl = BuildFileUrl(qiniuSettings.Domain, fileKey);
+
+            _logger.LogInformation("文件上传成功, 上传用户ID: {userId}, 文件Key: {fileKey}，文件链接: {url}", userId, fileKey, qiniuUrl);
+            return new FileUploads
+            {
+                UserId = userId,
+                FileName = fileName,
+                FileKey = fileKey,
+                FileSize = fileBytes.Length,
+                ContentType = "application/octet-stream",
+                Hash = hash,
+                QiniuUrl = qiniuUrl,
+                UploadTime = DateTime.Now,
+                Status = "active",
+                CreatedAt = DateTime.Now,
+                DeleteTime = qiniuSettings.DeleteDay != null ? BeijingTimeExtension.GetBeijingTime().AddDays((double)qiniuSettings.DeleteDay) : DateTime.MaxValue // 默认未删除
+            };
+        }
+    }
+}

LMS.Tools/HttpTool/HttpService.cs

@@ -0,0 +1,173 @@
+using LMS.Tools.FileTool;
+using Microsoft.Extensions.Logging;
+using System.Text;
+
+namespace LMS.Tools.HttpTool
+{
+    /// <summary>
+    /// HTTP网络请求服务
+    /// </summary>
+    public class HttpService : IHttpService
+    {
+        private readonly IHttpClientFactory _httpClientFactory;
+        private readonly ILogger<HttpService> _logger;
+
+        public HttpService(
+            IHttpClientFactory httpClientFactory,
+            ILogger<HttpService> logger)
+        {
+            _httpClientFactory = httpClientFactory;
+            _logger = logger;
+        }
+
+        /// <summary>
+        /// 下载文件并返回字节数组
+        /// </summary>
+        /// <param name="url">文件URL</param>
+        /// <returns>文件字节数组</returns>
+        public async Task<byte[]?> DownloadFileAsync(string url, double maxFileSize)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(url))
+                    throw new ArgumentException("URL不能为空", nameof(url));
+
+                if (!Uri.IsWellFormedUriString(url, UriKind.Absolute))
+                    throw new ArgumentException("无效的URL格式", nameof(url));
+
+                using var httpClient = _httpClientFactory.CreateClient("HttpService");
+                using var response = await httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+
+                if (!response.IsSuccessStatusCode)
+                {
+                    throw new HttpRequestException($"HTTP请求失败，状态码: {response.StatusCode}");
+                }
+
+                // 检查文件大小
+                if (response.Content.Headers.ContentLength.HasValue)
+                {
+                    if (response.Content.Headers.ContentLength.Value > maxFileSize * 1024 * 1024)
+                    {
+                        throw new InvalidOperationException($"文件大小({response.Content.Headers.ContentLength.Value} bytes)超过限制({maxFileSize * 1024 * 1024} bytes)");
+                    }
+                }
+
+                var fileBytes = await response.Content.ReadAsByteArrayAsync();
+
+                if (fileBytes.Length > maxFileSize * 1024 * 1024)
+                {
+                    throw new InvalidOperationException($"下载的文件大小({fileBytes.Length} bytes)超过限制({maxFileSize * 1024 * 1024} bytes)");
+                }
+
+                return fileBytes;
+            }
+            catch (HttpRequestException ex)
+            {
+                _logger.LogError(ex, "HTTP请求异常: {Url}", url);
+                throw;
+            }
+            catch (TaskCanceledException ex)
+            {
+                _logger.LogError(ex, "请求超时: {Url}", url);
+                throw new TimeoutException("请求超时", ex);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "下载文件失败: {Url}", url);
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// 发送GET请求
+        /// </summary>
+        /// <param name="url">请求URL</param>
+        /// <returns>响应内容</returns>
+        public async Task<string> GetAsync(string url)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(url))
+                    throw new ArgumentException("URL不能为空", nameof(url));
+
+                using var httpClient = _httpClientFactory.CreateClient("HttpService");
+                var response = await httpClient.GetStringAsync(url);
+                return response;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "GET请求失败: {Url}", url);
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// 发送POST请求
+        /// </summary>
+        /// <param name="url">请求URL</param>
+        /// <param name="content">请求内容</param>
+        /// <returns>响应内容</returns>
+        public async Task<string> PostAsync(string url, string content)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(url))
+                    throw new ArgumentException("URL不能为空", nameof(url));
+
+                using var httpClient = _httpClientFactory.CreateClient("HttpService");
+                var httpContent = new StringContent(content, Encoding.UTF8, "application/json");
+                var response = await httpClient.PostAsync(url, httpContent);
+
+                response.EnsureSuccessStatusCode();
+                return await response.Content.ReadAsStringAsync();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "POST请求失败: {Url}", url);
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// 检查URL是否可访问
+        /// </summary>
+        /// <param name="url">要检查的URL</param>
+        /// <returns>是否可访问</returns>
+        public async Task<bool> IsUrlAccessibleAsync(string url)
+        {
+            try
+            {
+                using var httpClient = _httpClientFactory.CreateClient("HttpService");
+                using var response = await httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+                return response.IsSuccessStatusCode;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// 获取URL的Content-Type
+        /// </summary>
+        /// <param name="url">要检查的URL</param>
+        /// <returns>Content-Type</returns>
+        public async Task<string?> GetContentTypeAsync(string url)
+        {
+            try
+            {
+                using var httpClient = _httpClientFactory.CreateClient("HttpService");
+                using var response = await httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+                if (response.IsSuccessStatusCode)
+                {
+                    return response.Content.Headers.ContentType?.MediaType;
+                }
+                return null;
+            }
+            catch
+            {
+                return null;
+            }
+        }
+    }
+}

LMS.Tools/HttpTool/IHttpService.cs

@@ -0,0 +1,45 @@
+namespace LMS.Tools.HttpTool
+{
+    /// <summary>
+    /// HTTP服务接口
+    /// </summary>
+    public interface IHttpService
+    {
+        /// <summary>
+        /// 下载文件并返回字节数组
+        /// </summary>
+        /// <param name="url">文件URL</param>
+        /// <param name="maxFileSize">最大文件大小限制（字节）</param>
+        /// <returns>文件字节数组</returns>
+        Task<byte[]?> DownloadFileAsync(string url, double maxFileSize);
+
+        /// <summary>
+        /// 发送GET请求
+        /// </summary>
+        /// <param name="url">请求URL</param>
+        /// <returns>响应内容</returns>
+        Task<string> GetAsync(string url);
+
+        /// <summary>
+        /// 发送POST请求
+        /// </summary>
+        /// <param name="url">请求URL</param>
+        /// <param name="content">请求内容</param>
+        /// <returns>响应内容</returns>
+        Task<string> PostAsync(string url, string content);
+
+        /// <summary>
+        /// 检查URL是否可访问
+        /// </summary>
+        /// <param name="url">要检查的URL</param>
+        /// <returns>是否可访问</returns>
+        Task<bool> IsUrlAccessibleAsync(string url);
+
+        /// <summary>
+        /// 获取URL的Content-Type
+        /// </summary>
+        /// <param name="url">要检查的URL</param>
+        /// <returns>Content-Type</returns>
+        Task<string?> GetContentTypeAsync(string url);
+    }
+}

LMS.Tools/LMS.Tools.csproj

@@ -9,6 +9,8 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.8" />
     <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />
+    <PackageReference Include="Qiniu.Shared" Version="7.2.15" />
     <PackageReference Include="Quartz.AspNetCore" Version="3.14.0" />
   </ItemGroup>
 

LMS.service/Configuration/ServiceConfiguration.cs

@@ -14,6 +14,8 @@ using LMS.service.Service.PromptService;
 using LMS.service.Service.RoleService;
 using LMS.service.Service.SoftwareService;
 using LMS.service.Service.UserService;
+using LMS.Tools.FileTool;
+using LMS.Tools.HttpTool;
 using LMS.Tools.MJPackage;
 
 namespace Lai_server.Configuration
@@ -67,7 +69,16 @@ namespace Lai_server.Configuration
             services.AddScoped<ITaskConcurrencyManager, TaskConcurrencyManager>();
             services.AddScoped<ITaskService, TaskService>();
             services.AddScoped<IQiniuUploadService, QiniuUploadService>();
+            services.AddScoped<IQiniuService, QiniuService>();
 
+            // 注册HTTP服务（注意：由于HttpService是单例，这里使用工厂模式）
+            services.AddSingleton<IHttpService, HttpService>(); // 注册为单例
+            services.AddHttpClient("HttpService", client =>
+            {
+                client.Timeout = TimeSpan.FromSeconds(30);
+                client.DefaultRequestHeaders.Add("User-Agent",
+                    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36");
+            });
 
             // 注册后台服务
             services.AddHostedService<RsaConfigurattions>();

LMS.service/Controllers/FileUploadController.cs

@@ -54,34 +54,17 @@ namespace LMS.service.Controllers
             return await _qiniuUploadService.GetFilesByUser(requestUserId, userId, page, pageSize);
         }
 
+        /// <summary>
+        /// URL转存文件
+        /// </summary>
+        /// <param name="machineId"></param>
+        /// <param name="request"></param>
+        /// <returns></returns>
+        [HttpPost("{machineId}")]
+        public async Task<ActionResult<APIResponseModel<UploadResult>>> UrlUpload(string machineId, [FromBody] UrlUploadRequest request)
+        {
+            return await _qiniuUploadService.UrlUpload(machineId, request);
+        }
 
-
-        ///// <summary>
-        ///// 删除文件
-        ///// </summary>
-        ///// <param name="fileId">文件ID</param>
-        ///// <returns></returns>
-        //[HttpDelete("files/{fileId}")]
-        //public async Task<IActionResult> DeleteFile(long fileId)
-        //{
-        //    try
-        //    {
-        //        var userId = GetCurrentUserId();
-        //        var success = await _qiniuUploadService.DeleteFileAsync(fileId, userId);
-
-        //        if (success)
-        //        {
-        //            return Ok(new { message = "删除成功" });
-        //        }
-        //        else
-        //        {
-        //            return NotFound(new { message = "文件不存在或无权限删除" });
-        //        }
-        //    }
-        //    catch (Exception ex)
-        //    {
-        //        return BadRequest(new { message = $"删除失败: {ex.Message}" });
-        //    }
-        //}
     }
 }

LMS.service/Controllers/ForwardController.cs

@@ -4,6 +4,7 @@ using LMS.service.Service;
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
+using System.Text.Json;
 using static LMS.Common.Enums.ResponseCodeEnum;
 
 namespace LMS.service.Controllers;
@@ -11,9 +12,10 @@ namespace LMS.service.Controllers;
 [Route("lms/[controller]/[action]")]
 [ApiController]
 
-public class ForwardController(ForwardWordService forwardWordService) : ControllerBase
+public class ForwardController(ForwardWordService forwardWordService, ILogger<ForwardController> logger) : ControllerBase
 {
     private readonly ForwardWordService _forwardWordService = forwardWordService;
+    private readonly ILogger<ForwardController> _logger = logger;
 
 
     #region 非流转发接口，需要系统数据
@@ -114,4 +116,22 @@ public class ForwardController(ForwardWordService forwardWordService) : Controll
 
     }
     #endregion
+
+    [HttpPost]
+    [Route("/lms/v1/chat/completions")]
+    public async Task<ActionResult<APIResponseModel<object>>> Chat(JsonElement json)
+    {
+        _logger.LogInformation("Received chat request: {Json}", json.GetRawText());
+        return APIResponseModel<object>.CreateSuccessResponseModel("");
+    }
+
+    [HttpPost]
+    [Route("/lms/mj-relax/mj/submit/video")]
+    [Route("/lms/mj-fast/mj/submit/video")]
+    [Route("/lms/mj/submit/video")]
+    public async Task<ActionResult<APIResponseModel<object>>> Imagine(JsonElement json)
+    {
+        _logger.LogInformation("Received chat request: {Json}", json.GetRawText());
+        return APIResponseModel<object>.CreateSuccessResponseModel("");
+    }
 }

LMS.service/Dockerfile

@@ -9,7 +9,7 @@ EXPOSE 8081
 FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
-# 复制所有的项目文件
+# 复制所有的项目文件
 COPY ["LMS.service/LMS.service.csproj", "LMS.service/"]
 COPY ["LMS.Common/LMS.Common.csproj", "LMS.Common/"]
 COPY ["LMS.DAO/LMS.DAO.csproj", "LMS.DAO/"]

LMS.service/Program.cs

@@ -18,10 +18,10 @@ builder.Services.AddControllers();
 
 builder.Services.AddAuthentication();
 
-// 添加跨域
+// 添加跨域
 builder.Services.AddCorsServices();
 
-// 配置注入自定义服务方法
+// 配置注入自定义服务方法
 builder.Services.AddServices();
 
 builder.Services.ConfigureApplicationCookie(options =>
@@ -31,12 +31,12 @@ builder.Services.ConfigureApplicationCookie(options =>
     options.Cookie.SameSite = SameSiteMode.None;
 });
 
-//配置JWT
+//配置JWT
 builder.Services.AddJWTAuthentication();
 builder.Services.AddAutoMapper(typeof(AutoMapperConfig));
 builder.Services.AddLoggerService();
 builder.Host.UseSerilog();
-// 关键步骤：注册 Serilog.ILogger 到 DI 容器
+// 关键步骤：注册 Serilog.ILogger 到 DI 容器
 builder.Services.AddSingleton(Log.Logger);
 builder.Services.AddQuartzTaskSchedulerService();
 
@@ -46,22 +46,22 @@ builder.Services.AddDbContext<ApplicationDbContext>(options =>
     options.UseMySql(connectionString, ServerVersion.Parse("8.0.18-mysql"));
 });
 
-// 添加内存缓存（用于存储速率限制计数器）
+// 添加内存缓存（用于存储速率限制计数器）
 builder.Services.AddMemoryCache();
 
-// 加载通用配置（从appsettings.json）
+// 加载通用配置（从app settings.json）
 builder.Services.Configure<IpRateLimitOptions>(builder.Configuration.GetSection("IpRateLimiting"));
 
 builder.Services.Configure<FileUploadSettings>(
     builder.Configuration.GetSection("FileUploadSettings"));
 
-// 配置模型验证
+// 配置模型验证
 builder.Services.Configure<ApiBehaviorOptions>(options =>
 {
-    options.SuppressModelStateInvalidFilter = false; // 确保模型验证生效
+    options.SuppressModelStateInvalidFilter = false; // 确保模型验证生效
 });
 
-// 注入计数器和规则存储
+// 注入计数器和规则存储
 builder.Services.AddSingleton<IIpPolicyStore, MemoryCacheIpPolicyStore>();
 builder.Services.AddSingleton<IRateLimitCounterStore, MemoryCacheRateLimitCounterStore>();
 builder.Services.AddSingleton<IRateLimitConfiguration, RateLimitConfiguration>();
@@ -71,20 +71,20 @@ builder.Services.AddSingleton<IProcessingStrategy, AsyncKeyLockProcessingStrateg
 
 builder.Services.AddIdentityCore<User>(options =>
 {
-    options.SignIn.RequireConfirmedAccount = true; //已有账号才能登录
+    options.SignIn.RequireConfirmedAccount = true; //已有账号才能登录
     options.SignIn.RequireConfirmedEmail = true; // 
-    options.Password.RequireDigit = true; // 数据库中至少有一个数字
+    options.Password.RequireDigit = true; // 数据库中至少有一个数字
-    options.Password.RequireLowercase = true; // 数据库中至少有一个小写字母
+    options.Password.RequireLowercase = true; // 数据库中至少有一个小写字母
-    options.Password.RequireUppercase = true; // 数据库中至少有一个大写字母
+    options.Password.RequireUppercase = true; // 数据库中至少有一个大写字母
-    options.Password.RequireNonAlphanumeric = true; // 数据库中至少有一个特殊字符
+    options.Password.RequireNonAlphanumeric = true; // 数据库中至少有一个特殊字符
-    options.Password.RequiredLength = 8; // 密码长度最少8位
+    options.Password.RequiredLength = 8; // 密码长度最少8位
 
-    options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5); // 锁定时间
+    options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5); // 锁定时间
-    options.Lockout.MaxFailedAccessAttempts = 10; // 尝试次数
+    options.Lockout.MaxFailedAccessAttempts = 10; // 尝试次数
-    options.Lockout.AllowedForNewUsers = true; // 新用户是否可以锁定
+    options.Lockout.AllowedForNewUsers = true; // 新用户是否可以锁定
 
-    options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+"; // 用户名允许的字符
+    options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+"; // 用户名允许的字符
-    options.User.RequireUniqueEmail = true; // 允许重复邮箱
+    options.User.RequireUniqueEmail = true; // 允许重复邮箱
     //options.User.
 });
 
@@ -96,7 +96,7 @@ idBuilder.AddEntityFrameworkStores<ApplicationDbContext>()
 
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
-// 注入Swagger
+// 注入Swagger
 builder.Services.AddSwaggerService();
 
 
@@ -124,16 +124,18 @@ app.UseAuthentication();
 app.UseAuthorization();
 app.MapControllers();
 
-// 在管道中使用IP速率限制中间件
+// 你好
+
+// 在管道中使用IP速率限制中间件
 app.UseIpRateLimiting();
 
-// 添加动态权限的中间件
+// 添加动态权限的中间件
 app.UseMiddleware<DynamicPermissionMiddleware>();
 app.UseEndpoints(endpoints =>
 {
     _ = endpoints.MapControllers();
 });
 
-Log.Information("后台启动成功，系统版本：" + version);
+Log.Information("后台启动成功，系统版本：" + version);
 
 app.Run();

LMS.service/Service/FileUploadService/IQiniuUploadService.cs

@@ -1,19 +1,51 @@
-using LMS.Repository.DB;
+using LMS.Repository.DTO;
-using LMS.Repository.DTO;
-using LMS.Repository.FileUpload;
 using Microsoft.AspNetCore.Mvc;
 using static LMS.Repository.DTO.FileUploadDto;
 using static LMS.Repository.FileUpload.FileRequestReturn;
 
 namespace LMS.service.Service.FileUploadService
 {
+    /// <summary>
+    /// 七牛云文件上传服务接口
+    /// 提供文件上传、文件列表查询等功能
+    /// </summary>
     public interface IQiniuUploadService
     {
+        /// <summary>
+        /// 上传本地的文件到七牛云，接收 Base64 格式的文件
+        /// </summary>
+        /// <param name="request">Base64格式的文件上传请求参数</param>
+        /// <param name="machineId">机器码标识</param>
+        /// <returns>返回上传结果，包含文件URL、Hash等信息</returns>
         Task<APIResponseModel<UploadResult>> UploadBase64Async(ByteUploadRequest request, string machineId);
-        //Task<List<FileUploads>> GetUserFilesAsync(string userId, int page = 1, int pageSize = 20);
+
-        //Task<int> GetUserFilesCountAsync(string userId);
+        /// <summary>
-        //Task<bool> DeleteFileAsync(long fileId, string userId);
+        /// 通过网络URL转存文件到七牛云
+        /// </summary>
+        /// <param name="machineId">机器码标识</param>
+        /// <param name="request">URL上传请求参数，包含文件URL和文件名</param>
+        /// <returns>返回转存结果，包含文件URL、Hash等信息</returns>
+        Task<ActionResult<APIResponseModel<UploadResult>>> UrlUpload(string machineId, UrlUploadRequest request);
+
+        /// <summary>
+        /// 获取用户文件列表，通过机器码查询
+        /// </summary>
+        /// <param name="machineId">机器码标识</param>
+        /// <param name="page">查看页码，从1开始</param>
+        /// <param name="pageSize">分页大小，每页显示的文件数量</param>
+        /// <returns>返回分页的文件列表，包含文件基本信息</returns>
         Task<ActionResult<APIResponseModel<CollectionResponse<FileMachineRequestReturn>>>> GetFilesByMachineId(string machineId, int page, int pageSize);
+
+        /// <summary>
+        /// 获取指定用户的文件列表
+        /// 如果请求用户是超级管理员，可以查看所有用户的文件
+        /// 普通用户只能查看自己的文件
+        /// </summary>
+        /// <param name="requestUserId">请求用户的ID</param>
+        /// <param name="userId">要查询的用户ID</param>
+        /// <param name="page">查看页码，从1开始</param>
+        /// <param name="pageSize">分页大小，每页显示的文件数量</param>
+        /// <returns>返回分页的用户文件列表，包含文件详细信息</returns>
         Task<ActionResult<APIResponseModel<CollectionResponse<FileUserRequestReturn>>>> GetFilesByUser(long requestUserId, long userId, int page, int pageSize);
     }
 }

LMS.service/Service/FileUploadService/QiniuUploadService.cs

@@ -5,64 +5,78 @@ using LMS.DAO.UserDAO;
 using LMS.Repository.DB;
 using LMS.Repository.DTO;
 using LMS.Repository.FileUpload;
-using LMS.Tools.ImageTool;
+using LMS.Tools.FileTool;
+using LMS.Tools.HttpTool;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Options;
-using Qiniu.Http;
-using Qiniu.IO;
-using Qiniu.IO.Model;
-using Qiniu.Util;
-using System.Security.Cryptography;
 using static LMS.Common.Enums.ResponseCodeEnum;
 using static LMS.Repository.DTO.FileUploadDto;
 using static LMS.Repository.FileUpload.FileRequestReturn;
 
 namespace LMS.service.Service.FileUploadService
 {
+    /// <summary>
+    /// 七牛云文件上传服务实现类
+    /// 提供Base64文件上传、URL转存、文件列表查询等功能
+    /// 支持图片格式验证、文件大小限制、用户权限控制
+    /// </summary>
     public class QiniuUploadService : IQiniuUploadService
     {
+        #region 私有字段
+
         private readonly FileUploadSettings _uploadSettings;
         private readonly ApplicationDbContext _dbContext;
-        private readonly UploadManager _uploadManager;
         private readonly ILogger<QiniuUploadService> _logger;
         private readonly UserBasicDao _userBasicDao;
         private readonly OptionGlobalDAO _optionGlobalDAO;
+        private readonly IQiniuService _qiniuService;
+        private readonly IHttpService _httpService;
 
+        #endregion
+
+        #region 构造函数
+
+        /// <summary>
+        /// 初始化七牛云上传服务
+        /// </summary>
+        /// <param name="uploadSettings">文件上传配置</param>
+        /// <param name="logger">日志记录器</param>
+        /// <param name="userBasicDao">用户基础数据访问对象</param>
+        /// <param name="optionGlobalDAO">全局选项数据访问对象</param>
+        /// <param name="qiniuService">七牛云服务接口</param>
+        /// <param name="fileService">文件服务接口</param>
+        /// <param name="dbContext">数据库上下文</param>
         public QiniuUploadService(
             IOptions<FileUploadSettings> uploadSettings,
             ILogger<QiniuUploadService> logger,
             UserBasicDao userBasicDao,
             OptionGlobalDAO optionGlobalDAO,
+            IQiniuService qiniuService,
+            IHttpService httpService,
             ApplicationDbContext dbContext)
         {
             _uploadSettings = uploadSettings.Value;
             _logger = logger;
             _dbContext = dbContext;
             _optionGlobalDAO = optionGlobalDAO;
-            _userBasicDao = userBasicDao; ;
+            _userBasicDao = userBasicDao;
-            _uploadManager = new UploadManager();
+            _qiniuService = qiniuService;
+            _httpService = httpService;
         }
 
-        /// <summary>
+        #endregion
-        /// 通过字节数组上传文件到七牛云
+
-        /// </summary>
+        #region 公共方法
-        /// <param name="request"></param>
-        /// <param name="machineId"></param>
-        /// <returns></returns>
         public async Task<APIResponseModel<UploadResult>> UploadBase64Async(ByteUploadRequest request, string machineId)
         {
             try
             {
-                // 将 文件的base64 字符串转换为字节数组
+                // 将文件的base64字符串转换为字节数组
-                var fileBytes = ConvertBase64ToBytes(request.File);
+                byte[] fileBytes = FileService.ConvertBase64ToBytes(request.File) ?? [];
-                if (fileBytes == null || fileBytes.Length == 0)
-                {
-                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "无效的文件数据");
-                }
 
-                // 1. 验证数据
+                // 1. 验证数据 - 使用FileService中的验证方法
-                var validationResult = ValidateUploadRequest(request, fileBytes);
+                var validationResult = await ValidateUploadRequest(request, fileBytes);
                 if (!validationResult.Success)
                 {
                     return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, validationResult.Message);
@@ -82,67 +96,12 @@ namespace LMS.service.Service.FileUploadService
                     return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "今日上传文件数量已达上限，请明天再试");
                 }
 
-                QiniuSettings? qiniuSettings = await _optionGlobalDAO.FindAndReturnOption<QiniuSettings>("SYS_QiniuSetting");
+                string fileKey = $"diantu/user/{userId}/{DateTime.Now:yyyyMMdd}/{request.FileName}";
-                if (qiniuSettings == null || string.IsNullOrEmpty(qiniuSettings.AccessKey) || string.IsNullOrEmpty(qiniuSettings.SecretKey) || string.IsNullOrEmpty(qiniuSettings.BucketName) || string.IsNullOrEmpty(qiniuSettings.Domain))
-                {
-                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "配置不完整，请检查配置，请联系管理员");
-                }
 
-                Mac mac = new(qiniuSettings.AccessKey, qiniuSettings.SecretKey);
+                // 4. 上传到七牛云
-
+                FileUploads fileUpload = await _qiniuService.UploadFileToQiNiu(fileBytes, userId.Value, request.FileName, fileKey);
-
-                // 4. 生成文件key
-                var fileKey = GenerateFileKey(userId.Value, request.FileName);
-
-
-                // 5. 生成上传凭证
-                var putPolicy = new PutPolicy
-                {
-                    Scope = qiniuSettings.BucketName
-                };
-                if (qiniuSettings.DeleteDay != null)
-                {
-                    putPolicy.DeleteAfterDays = qiniuSettings.DeleteDay.Value; // 设置过期时间
-                }
-                putPolicy.SetExpires(3600);
-                var token = Auth.CreateUploadToken(mac, putPolicy.ToJsonString());
-
-                // 6. 计算文件哈希
-                var hash = ComputeSHA1Hash(fileBytes);
-
-                // 7. 上传到七牛云
-                HttpResult uploadResult;
-                using (var stream = new MemoryStream(fileBytes))
-                {
-                    uploadResult = await _uploadManager.UploadStreamAsync(stream, fileKey, token);
-                }
-
-                // 8. 检查上传结果
-                if (uploadResult.Code != 200)
-                {
-                    _logger.LogError($"文件上传失败, 上传用户ID: {userId}, 错误信息: {uploadResult.Text}");
-                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.SystemError, $"文件上传失败: {uploadResult.Text}");
-                }
-
-                // 9. 构建访问URL
-                var qiniuUrl = BuildFileUrl(qiniuSettings.Domain, fileKey);
-
-                // 10. 保存到数据库
-                var fileUpload = new FileUploads
-                {
-                    UserId = userId.Value,
-                    FileName = request.FileName,
-                    FileKey = fileKey,
-                    FileSize = fileBytes.Length,
-                    ContentType = request.ContentType ?? "application/octet-stream",
-                    Hash = hash,
-                    QiniuUrl = qiniuUrl,
-                    UploadTime = DateTime.Now,
-                    Status = "active",
-                    CreatedAt = DateTime.Now,
-                    DeleteTime = qiniuSettings.DeleteDay != null ? BeijingTimeExtension.GetBeijingTime().AddDays((double)qiniuSettings.DeleteDay) : DateTime.MaxValue // 默认未删除
-                };
 
+                // 5. 修改数据库
                 _dbContext.FileUploads.Add(fileUpload);
                 await _dbContext.SaveChangesAsync();
 
@@ -150,9 +109,9 @@ namespace LMS.service.Service.FileUploadService
                 {
                     Success = true,
                     Message = "上传成功",
-                    Url = qiniuUrl,
+                    Url = fileUpload.QiniuUrl,
-                    FileKey = fileKey,
+                    FileKey = fileUpload.FileKey,
-                    Hash = hash,
+                    Hash = fileUpload.Hash,
                     FileId = fileUpload.Id,
                     FileSize = fileBytes.Length
                 });
@@ -165,27 +124,21 @@ namespace LMS.service.Service.FileUploadService
             }
         }
 
-        /// <summary>
-        /// 获取对应机器码上传的图片信息
-        /// </summary>
-        /// <param name="machineId"></param>
-        /// <param name="page"></param>
-        /// <param name="pageSize"></param>
-        /// <returns></returns>
         public async Task<ActionResult<APIResponseModel<CollectionResponse<FileMachineRequestReturn>>>> GetFilesByMachineId(string machineId, int page, int pageSize)
         {
             try
             {
-                // 1. 判断机器码 是不是 存在 并且获取对应的ID
+                // 1. 验证机器码并获取关联的用户ID
                 long? userId = await GetUserIdFromMachine(machineId);
                 if (userId == null)
                 {
                     return APIResponseModel<CollectionResponse<FileMachineRequestReturn>>.CreateErrorResponseModel(ResponseCode.ParameterError, "无效的机器ID或未找到关联用户");
                 }
+
                 // 2. 获取用户的文件列表
                 var filesList = await GetUserFilesAsync(userId.Value, page, pageSize);
 
-                // 4. 构建返回结果
+                // 3. 构建返回结果，将数据库实体转换为响应模型
                 var fileList = filesList.fileList.Select(f => new FileMachineRequestReturn
                 {
                     MachineId = machineId,
@@ -198,34 +151,37 @@ namespace LMS.service.Service.FileUploadService
                     CreatedAt = f.CreatedAt,
                     DeleteTime = f.DeleteTime
                 }).ToList();
+
                 var response = new CollectionResponse<FileMachineRequestReturn>
                 {
                     Current = page,
                     Total = filesList.totlaCount,
                     Collection = fileList
                 };
+
                 return APIResponseModel<CollectionResponse<FileMachineRequestReturn>>.CreateSuccessResponseModel(response);
             }
             catch (Exception ex)
             {
-                // 这里可以记录日志或处理异常
                 _logger.LogError(ex, $"获取文件列表失败, 机器码: {machineId}");
                 return APIResponseModel<CollectionResponse<FileMachineRequestReturn>>.CreateErrorResponseModel(ResponseCode.SystemError, "获取文件列表失败");
             }
         }
 
         /// <summary>
-        /// 获取指定的用户的文件列表，如果是超级管理员则获取所有用户的文件列表
+        /// 获取指定用户的文件列表
+        /// 超级管理员可以查看所有用户的文件，普通用户只能查看自己的文件
         /// </summary>
-        /// <param name="requestUserId"></param>
+        /// <param name="requestUserId">请求用户的ID</param>
-        /// <param name="page"></param>
+        /// <param name="userId">要查询的目标用户ID</param>
-        /// <param name="pageSize"></param>
+        /// <param name="page">页码，从1开始</param>
-        /// <returns></returns>
+        /// <param name="pageSize">每页显示的文件数量</param>
+        /// <returns>分页的用户文件列表响应</returns>
         public async Task<ActionResult<APIResponseModel<CollectionResponse<FileUserRequestReturn>>>> GetFilesByUser(long requestUserId, long userId, int page, int pageSize)
         {
             try
             {
-                // 1. 判断用户是不是超级管理员，不是超级管理员只能获取自己的
+                // 1. 检查用户权限：判断是否为超级管理员
                 bool isSuperAdmin = await _userBasicDao.CheckUserIsSuperAdmin(requestUserId);
 
                 var fileMessage = (0, new List<FileUploads>());
@@ -236,14 +192,16 @@ namespace LMS.service.Service.FileUploadService
                 }
                 else
                 {
+                    // 普通用户权限检查：只能查看自己的文件
                     if (requestUserId != userId)
                     {
                         return APIResponseModel<CollectionResponse<FileUserRequestReturn>>.CreateErrorResponseModel(ResponseCode.NotPermissionAction);
                     }
-                    // 普通用户只能获取自己的文件
+                    // 获取用户自己的文件列表
                     fileMessage = await GetUserFilesAsync(requestUserId, page, pageSize);
                 }
-                // 2. 构建返回结果
+
+                // 2. 构建返回结果，将数据库实体转换为响应模型
                 var fileList = fileMessage.Item2.Select(f => new FileUserRequestReturn
                 {
                     Id = f.Id,
@@ -257,12 +215,14 @@ namespace LMS.service.Service.FileUploadService
                     CreatedAt = f.CreatedAt,
                     DeleteTime = f.DeleteTime
                 }).ToList();
+
                 var response = new CollectionResponse<FileUserRequestReturn>
                 {
                     Current = page,
                     Total = fileMessage.Item1,
                     Collection = fileList
                 };
+
                 return APIResponseModel<CollectionResponse<FileUserRequestReturn>>.CreateSuccessResponseModel(response);
             }
             catch (Exception ex)
@@ -274,49 +234,49 @@ namespace LMS.service.Service.FileUploadService
 
         public async Task<(int totlaCount, List<FileUploads> fileList)> GetUserFilesAsync(long userId, int page = 1, int pageSize = 10)
         {
-            // 获取用户的文件总数
+            // 获取用户的活跃文件总数
             int totalCount = await _dbContext.FileUploads
                 .Where(f => f.UserId == userId && f.Status == "active")
                 .CountAsync();
-            // 获取用户的文件列表
+
+            // 如果没有文件，直接返回空结果
             if (totalCount == 0)
             {
                 return (0, new List<FileUploads>());
             }
 
+            // 分页查询用户文件列表，按上传时间倒序排列
             var fileList = _dbContext.FileUploads
                 .Where(f => f.UserId == userId && f.Status == "active")
                 .OrderByDescending(f => f.UploadTime)
                 .Skip((page - 1) * pageSize)
                 .Take(pageSize)
                 .ToListAsync();
+
             return (totalCount, await fileList);
         }
 
         public async Task<(int totleCount, List<FileUploads> fileList)> GetAllUserFilesAsync(int page = 1, int pageSize = 10)
         {
-            // 获取所有用户的文件总数
+            // 获取所有活跃文件的总数
             int totalCount = await _dbContext.FileUploads
                 .Where(f => f.Status == "active")
                 .CountAsync();
+
             if (totalCount == 0)
             {
                 return (0, new List<FileUploads>());
             }
-            // 获取所有用户的文件列表
+
+            // 分页查询所有用户的文件列表，按上传时间倒序排列
             List<FileUploads> fileUploads = await _dbContext.FileUploads
                 .Where(f => f.Status == "active")
                 .OrderByDescending(f => f.UploadTime)
                 .Skip((page - 1) * pageSize)
                 .Take(pageSize)
                 .ToListAsync();
-            return (totalCount, fileUploads);
-        }
 
-        public async Task<int> GetUserFilesCountAsync(long userId)
+            return (totalCount, fileUploads);
-        {
-            return await _dbContext.FileUploads
-                .CountAsync(f => f.UserId == userId && f.Status == "active");
         }
 
         private async Task<int> GetUserUploadToday(long userId)
@@ -325,44 +285,17 @@ namespace LMS.service.Service.FileUploadService
                 .CountAsync(f => f.UserId == userId && f.CreatedAt.Date == BeijingTimeExtension.GetBeijingTime().Date);
         }
 
-        private static byte[]? ConvertBase64ToBytes(string base64String)
-        {
-            if (string.IsNullOrEmpty(base64String))
-            {
-                return null;
-            }
-            // 检查是否以 "data:" 开头并包含 base64 编码
-            if (base64String.StartsWith("data:"))
-            {
-                // 提取 base64 编码部分
-                var commaIndex = base64String.IndexOf(',');
-                if (commaIndex >= 0)
-                {
-                    base64String = base64String.Substring(commaIndex + 1);
-                }
-            }
-            // 判断会不会出现异常
-            try
-            {
-                // 尝试将 base64 字符串转换为字节数组
-                return Convert.FromBase64String(base64String);
-            }
-            catch (FormatException)
-            {
-                // 如果格式不正确，返回 null
-                return null;
-            }
-        }
-
         private async Task<long?> GetUserIdFromMachine(string machineId)
         {
             if (string.IsNullOrWhiteSpace(machineId))
             {
                 return null;
             }
+
+            // 查询有效的机器码（未过期或无过期时间）
             Machine? machine = await _dbContext.Machine
                 .Where(m => m.MachineId == machineId && (m.DeactivationTime > BeijingTimeExtension.GetBeijingTime() || m.DeactivationTime == null))
-                .FirstOrDefaultAsync();  // 改回原来的 FirstOrDefaultAsync
+                .FirstOrDefaultAsync();
 
             if (machine != null)
             {
@@ -374,19 +307,102 @@ namespace LMS.service.Service.FileUploadService
                 return null;
             }
         }
-
+        public async Task<ActionResult<APIResponseModel<UploadResult>>> UrlUpload(string machineId, UrlUploadRequest request)
-        // 私有方法
-        private UploadResult ValidateUploadRequest(ByteUploadRequest request, byte[] fileBytes)
         {
-            if (fileBytes == null || fileBytes.Length == 0)
+            try
             {
-                return new UploadResult
+                // 1. 获取用户
+                long? userId = await GetUserIdFromMachine(machineId);
+                if (userId == null)
                 {
-                    Success = false,
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "无效的机器ID或未找到关联用户");
-                    Message = "文件字节数据不能为空"
-                };
                 }
 
+                // 2. 验证URL格式
+                if (!Uri.IsWellFormedUriString(request.Url, UriKind.Absolute))
+                {
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "无效的URL格式");
+                }
+
+                //4.下载网络图片获取字节数组
+                byte[] fileBytes;
+                try
+                {
+                    double maxFileSize = await _optionGlobalDAO.FindAndReturnOption<double>("SYS_MaxUploadFileSize");
+                    fileBytes = await _httpService.DownloadFileAsync(request.Url, maxFileSize) ?? [];
+                    if (fileBytes == null || fileBytes.Length == 0)
+                    {
+                        return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "无法下载指定的文件或文件为空");
+                    }
+                }
+                catch (InvalidOperationException ex) when (ex.Message.Contains("文件大小") && ex.Message.Contains("超过限制"))
+                {
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "文件大小超过限制");
+                }
+                catch (TimeoutException)
+                {
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "下载文件超时，请检查网络连接或URL有效性");
+                }
+                catch (HttpRequestException ex)
+                {
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, $"下载文件失败: {ex.Message}");
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, $"下载文件时发生未知错误: {request.Url}");
+                    return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.ParameterError, "下载文件失败");
+                }
+
+                // 7. 生成文件路径
+                string fileKey = $"upfile/user/{userId}/{DateTime.Now:yyyyMMdd}/transfer_{request.FileName}";
+
+                // 8. 上传到七牛云
+                FileUploads fileUpload = await _qiniuService.UploadFileToQiNiu(fileBytes, userId.Value, request.FileName, fileKey);
+
+                // 10. 返回成功结果
+                return APIResponseModel<UploadResult>.CreateSuccessResponseModel(new UploadResult
+                {
+                    Success = true,
+                    Message = "URL转存成功",
+                    Url = fileUpload.QiniuUrl,
+                    FileKey = fileUpload.FileKey,
+                    Hash = fileUpload.Hash,
+                    FileId = fileUpload.Id,
+                    FileSize = fileBytes.Length
+                });
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, $"URL转存文件失败, 上传机器码: {machineId}，URL: {request.Url}");
+                return APIResponseModel<UploadResult>.CreateErrorResponseModel(ResponseCode.SystemError, $"转存失败: {ex.Message}");
+            }
+        }
+
+        #endregion
+
+
+        #region 私有辅助方法
+
+        /// <summary>
+        /// 验证上传请求的文件是否符合要求
+        /// </summary>
+        /// <param name="request">上传请求参数</param>
+        /// <param name="fileBytes">文件字节数组</param>
+        /// <param name="allowedContentTypes">允许的文件类型列表</param>
+        /// <param name="maxFileSize">最大文件大小（字节）</param>
+        /// <returns>验证结果</returns>
+        public async Task<UploadResult> ValidateUploadRequest(ByteUploadRequest request, byte[] fileBytes)
+        {
+
+            double maxFileSize = await _optionGlobalDAO.FindAndReturnOption<double>("SYS_MaxUploadFileSize");
+            // 1. 检查文件大小
+            var sizeCheckResult = await FileService.CheckFileSize(fileBytes, maxFileSize);
+            if (!sizeCheckResult.Success)
+            {
+                return sizeCheckResult;
+            }
+
+            // 2. 校验文件名不能为空
             if (string.IsNullOrEmpty(request.FileName))
             {
                 return new UploadResult
@@ -396,18 +412,11 @@ namespace LMS.service.Service.FileUploadService
                 };
             }
 
-            if (fileBytes.Length > _uploadSettings.MaxFileSize)
+            List<string> allowedContentTypes = await _optionGlobalDAO.FindAndReturnOption<List<string>>("SYS.AllowedContentTypes") ?? [];
-            {
+            // 3. 检查文件类型（如果有配置允许的类型）
-                return new UploadResult
+            if (allowedContentTypes.Count > 0 &&
-                {
-                    Success = false,
-                    Message = $"文件大小不能超过 {_uploadSettings.MaxFileSize / (1024 * 1024)}MB"
-                };
-            }
-
-            if (_uploadSettings.AllowedContentTypes.Count != 0 &&
                 !string.IsNullOrEmpty(request.ContentType) &&
-                !_uploadSettings.AllowedContentTypes.Contains(request.ContentType.ToLower()))
+                !allowedContentTypes.Contains(request.ContentType.ToLower()))
             {
                 return new UploadResult
                 {
@@ -416,9 +425,8 @@ namespace LMS.service.Service.FileUploadService
                 };
             }
 
-            // 检查实际的文件类型是否在允许的列表中
+            // 4. 检查是否为有效的图片文件
-            // 只检查是否为图片，不是图片就拒绝
+            if (!FileService.IsValidImageFile(fileBytes))
-            if (!ImageTypeDetector.IsValidImage(fileBytes))
             {
                 return new UploadResult
                 {
@@ -430,23 +438,8 @@ namespace LMS.service.Service.FileUploadService
             return new UploadResult { Success = true };
         }
 
-        private static string GenerateFileKey(long userId, string fileName)
+        #endregion
-        {
+
-            var date = DateTime.Now.ToString("yyyyMMdd");
-            var guid = Guid.NewGuid().ToString("N");
-            var extension = Path.GetExtension(fileName);
-            return $"diantu/user/{userId}/{date}/{guid}{extension}";
     }
 
-        private static string ComputeSHA1Hash(byte[] data)
-        {
-            var hash = SHA1.HashData(data);
-            return Convert.ToHexString(hash).ToLower();
-        }
-
-        private static string BuildFileUrl(string domain, string fileKey)
-        {
-            return $"{domain}/{fileKey}";
-        }
-    }
 }

LMS.service/Service/PromptService/PromptService.cs

@@ -361,7 +361,8 @@ public class PromptService(UserBasicDao userBasicDao, ApplicationDbContext conte
                     Id = prompt.Id,
                     Name = prompt.Name,
                     PromptTypeId = prompt.PromptTypeId,
-                    Remark = prompt.Remark
+                    Remark = prompt.Remark,
+                    Description = prompt.Description
                 };
                 promptNames.Add(promptName);
             }