oss板块

2026-08-24 18:16:08 +08:00
parent 0931e1f343
commit 4679bd6c13
13 changed files with 341 additions and 12 deletions
@@ -8,6 +8,8 @@
 // 5.请不得将本软件应用于危害国家安全、荣誉和利益的行为，不能以任何形式用于非法为目的的行为。
 // 6.任何基于本软件而产生的一切法律纠纷和责任，均于我司无关。

+using Aliyun.OSS;
+
 namespace SimpleAdmin.System;

 /// <summary>
@@ -95,6 +97,8 @@ public class FileService : DbRepository<SysFile>, IFileService
                return GetFileStreamResult(devFile.StoragePath, devFile.Name);
            if (devFile.Engine == SysDictConst.FILE_ENGINE_MINIO)
                return await GetFileStreamResultFromMinio(devFile.ObjName, devFile.Name);
+            if (devFile.Engine == SysDictConst.FILE_ENGINE_ALIYUN_OSS)
+                return await GetFileStreamResultFromAliyunOss(devFile);
            return null;
        }
        return null;
@@ -142,6 +146,9 @@ public class FileService : DbRepository<SysFile>, IFileService
                }
                break;

+            case SysDictConst.FILE_ENGINE_ALIYUN_OSS:
+                (bucketName, objName, storageUrl) = await StorageAliyunOss(objectId, file);
+                break;
            default:

                throw Oops.Bah("不支持的文件引擎");
@@ -154,13 +161,13 @@ public class FileService : DbRepository<SysFile>, IFileService
            Engine = engine,
            Bucket = bucketName,
            Name = file.FileName,
-            Suffix = fileSuffix.Split(".")[1],
+            Suffix = fileSuffix.TrimStart('.'),
            ObjName = objName,
            SizeKb = fileSizeKb,
            SizeInfo = GetSizeInfo(fileSizeKb),
            StoragePath = storageUrl
        };
-        if (engine != CateGoryConst.CONFIG_FILE_LOCAL)//如果不是本地，设置下载地址
+        if (engine != SysDictConst.FILE_ENGINE_LOCAL)//如果不是本地，设置下载地址
        {
            devFile.DownloadPath = storageUrl;
        }
@@ -236,6 +243,111 @@ public class FileService : DbRepository<SysFile>, IFileService
        return (fileObjectName, downloadUrl);
    }

+    /// <summary>
+    /// 将入职业务文件存储到阿里云 OSS。
+    /// </summary>
+    private async Task<(string bucketName, string objName, string downloadUrl)> StorageAliyunOss(
+        long fileId,
+        IFormFile file)
+    {
+        var setting = GetOssSetting();
+        var suffix = Path.GetExtension(file.FileName).ToLowerInvariant();
+        var objectName = $"onboarding/{DateTime.Now:yyyy/MM/dd}/{fileId}{suffix}";
+        var metadata = new ObjectMetadata();
+        if (!string.IsNullOrWhiteSpace(file.ContentType))
+            metadata.ContentType = file.ContentType;
+
+        await using var stream = file.OpenReadStream();
+        var client = CreateOssClient(setting);
+        client.PutObject(setting.Bucket, objectName, stream, metadata);
+
+        var downloadUrl = string.IsNullOrWhiteSpace(setting.OSSUrl)
+            ? $"https://{setting.Bucket}.{setting.EndPoint.Trim().TrimEnd('/')}/{objectName}"
+            : $"{setting.OSSUrl.Trim().TrimEnd('/')}/{objectName}";
+
+        return (setting.Bucket, objectName, downloadUrl);
+    }
+
+    /// <summary>
+    /// 从阿里云 OSS 读取业务文件并通过统一下载接口返回。
+    /// </summary>
+    private async Task<FileStreamResult> GetFileStreamResultFromAliyunOss(SysFile file)
+    {
+        var setting = GetOssSetting();
+        var client = CreateOssClient(setting);
+        var ossObject = client.GetObject(file.Bucket, file.ObjName);
+        var memory = new MemoryStream();
+        await using (ossObject.Content)
+        {
+            await ossObject.Content.CopyToAsync(memory);
+        }
+
+        memory.Position = 0;
+        var fileName = HttpUtility.UrlEncode(file.Name, Encoding.GetEncoding("UTF-8"));
+        return new FileStreamResult(memory, "application/octet-stream")
+        {
+            FileDownloadName = fileName
+        };
+    }
+
+    /// <summary>
+    /// 读取并校验阿里云 OSS 配置。
+    /// </summary>
+    private static OssSettingOptions GetOssSetting()
+    {
+        var setting = App.GetConfig<OssSettingOptions>("OssSetting", true);
+        var configurationIncomplete = setting == null
+                                      || string.IsNullOrWhiteSpace(setting.AccessKeyID)
+                                      || string.IsNullOrWhiteSpace(setting.AccessKeySecret)
+                                      || string.IsNullOrWhiteSpace(setting.Bucket)
+                                      || string.IsNullOrWhiteSpace(setting.EndPoint);
+        if (configurationIncomplete)
+            throw Oops.Bah("阿里云 OSS 配置不完整");
+
+        return setting;
+    }
+
+    /// <summary>
+    /// 通过 STS 临时凭证创建阿里云 OSS 客户端。
+    /// </summary>
+    private static OssClient CreateOssClient(OssSettingOptions setting)
+    {
+        var endpoint = setting.EndPoint.Trim();
+        if (!endpoint.StartsWith("http://", StringComparison.OrdinalIgnoreCase)
+            && !endpoint.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
+        {
+            endpoint = "https://" + endpoint;
+        }
+
+        if (string.IsNullOrWhiteSpace(setting.RoleArn))
+            return new OssClient(endpoint, setting.AccessKeyID, setting.AccessKeySecret);
+
+        var stsConfig = new AlibabaCloud.OpenApiClient.Models.Config
+        {
+            AccessKeyId = setting.AccessKeyID,
+            AccessKeySecret = setting.AccessKeySecret,
+            Endpoint = setting.StsEndpoint
+        };
+        var stsClient = new AlibabaCloud.SDK.Sts20150401.Client(stsConfig);
+        var request = new AlibabaCloud.SDK.Sts20150401.Models.AssumeRoleRequest
+        {
+            RoleArn = setting.RoleArn,
+            RoleSessionName = string.IsNullOrWhiteSpace(setting.RoleSessionName)
+                ? "onboardx-server"
+                : setting.RoleSessionName,
+            DurationSeconds = 3600
+        };
+        var credentials = stsClient.AssumeRole(request).Body.Credentials;
+        if (credentials == null)
+            throw Oops.Bah("获取阿里云 OSS 临时凭证失败");
+
+        return new OssClient(
+            endpoint,
+            credentials.AccessKeyId,
+            credentials.AccessKeySecret,
+            credentials.SecurityToken);
+    }
+
    /// <summary>
    /// 获取文件大小
    /// </summary>