support custom Amazon S3 endpoint URL

Grand.Core/Configuration/GrandConfig.cs

@@ -86,6 +86,11 @@ public GrandConfig()
  /// </summary>
  public string AmazonBucketName { get; set; }
 
+ /// <summary>
+ /// Custom Endpoint for third party S3 compatible service, example: https://sfo2.digitaloceanspaces.com
+ /// </summary>
+ public string AmazonRegionEndpoint { get; set; }
+
  /// <summary>
  /// Amazon Domain name for cloudfront distribution
  /// </summary>

Grand.Services/Media/AmazonPictureService.cs

@@ -62,13 +62,24 @@ public partial class AmazonPictureService : PictureService
  if (string.IsNullOrEmpty(_config.AmazonBucketName))
  throw new ArgumentNullException("AmazonBucketName");
 
- //Region guard
- var regionEndpoint = RegionEndpoint.GetBySystemName(_config.AmazonRegion);
- if (regionEndpoint.DisplayName == "Unknown")
- throw new NullReferenceException("specified Region is invalid");
+ AmazonS3Config amazonS3Config = new AmazonS3Config();
+
+ if (string.IsNullOrEmpty(_config.AmazonRegionEndpoint))
+ {
+ //Region guard
+ var regionEndpoint = RegionEndpoint.GetBySystemName(_config.AmazonRegion);
+ if (regionEndpoint.DisplayName == "Unknown")
+ throw new NullReferenceException("specified Region is invalid");
+
+ amazonS3Config.RegionEndpoint = regionEndpoint;
+ }
+ else
+ {
+ amazonS3Config.ServiceURL = _config.AmazonRegionEndpoint;
+ }
 
  //Client guard
- _s3Client = new AmazonS3Client(_config.AmazonAwsAccessKeyId, _config.AmazonAwsSecretAccessKey, regionEndpoint);
+ _s3Client = new AmazonS3Client(_config.AmazonAwsAccessKeyId, _config.AmazonAwsSecretAccessKey, amazonS3Config);
 
  //Bucket guard
  _bucketName = _config.AmazonBucketName;

Grand.Web/App_Data/appsettings.json

@@ -71,6 +71,7 @@
  "AmazonAwsSecretAccessKey": "",
  "AmazonBucketName": "",
  "AmazonRegion": "",
+ "AmazonRegionEndpoint": "", // third party S3 compatible service, example: https://sfo2.digitaloceanspaces.com
  "AmazonDistributionDomainName": "", //Domain name for cloudfront distribution
 
  ///Enable the Publish/Subscribe messaging with redis to manage memory cache on every server