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@@ -1,18 +1,15 @@
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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.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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-using System.DrawingCore.Imaging;
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-using System.IO;
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using Library;
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-using System.Collections;
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-using LitJson;
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-using System.Globalization;
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using System.Web;
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+using System.Security.Cryptography;
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+using System.Text;
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+using Aliyun.OSS;
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+using LitJson;
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// For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
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@@ -49,5 +46,49 @@ namespace MySystem.Areas.Api.Controllers
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}
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#endregion
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+
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+ #region 前端上传oss返回参数
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+ public JsonResult OssInfo(string value)
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+ {
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+ value = DesDecrypt(value);
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+ JsonData data = JsonMapper.ToObject(value);
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+ string dir = data["dir"].ToString(); //文件上传路径
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+ if (string.IsNullOrEmpty(data["dir"].ToString()))
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+ {
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+ return Json(new AppResultJson() { Status = "1", Info = "文件上传路径不能为空" });
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+ }
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+ Dictionary<string, object> Obj = new Dictionary<string, object>();
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+ var OssUrl = OssHost;
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+ var AccessKeyId = OssKey;
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+ var AccessKeySecret = OssSecret;
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+ var endpoint = "https://" + OssEndpoint;
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+
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+ // 构造OssClient实例。 endpoint 格式:https://oss-cn-beijing.aliyuncs.com
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+ var ossClient = new OssClient(endpoint, AccessKeyId, AccessKeySecret);
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+ var config = new PolicyConditions();
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+ config.AddConditionItem(PolicyConditions.CondContentLengthRange, 1, 1024L * 1024 * 1024 * 5);// 文件大小范围：单位byte
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+ config.AddConditionItem(MatchMode.StartWith, PolicyConditions.CondKey, dir);
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+ var expire = DateTimeOffset.Now.AddMinutes(30);// 过期时间
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+
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+ // 生成 Policy，并进行 Base64 编码
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+ var policy = ossClient.GeneratePostPolicy(expire.LocalDateTime, config);
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+ var policyBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(policy));
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+
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+ // 计算签名
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+ var hmac = new HMACSHA1(Encoding.UTF8.GetBytes(AccessKeySecret));
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+ var bytes = hmac.ComputeHash(Encoding.UTF8.GetBytes(policyBase64));
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+ var Signature = Convert.ToBase64String(bytes);
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+
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+ Obj.Add("OssUrl", OssUrl);
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+ Obj.Add("AccessKeyId", AccessKeyId);
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+ // Obj.Add("AccessKeySecret", AccessKeySecret);
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+ Obj.Add("Policy", policyBase64);
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+ Obj.Add("Expiration", expire);
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+ Obj.Add("Signature", Signature);
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+ Obj.Add("dir", dir);
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+ return Json(new AppResultJson() { Status = "1", Info = "", Data = Obj });
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+ }
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+ #endregion
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+
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}
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}
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