mirror of
https://github.com/ShareX/ShareX.git
synced 2024-10-06 05:05:42 +13:00
201 lines
No EOL
7.3 KiB
C#
201 lines
No EOL
7.3 KiB
C#
#region License Information (GPL v3)
|
|
|
|
/*
|
|
ShareX - A program that allows you to take screenshots and share any file type
|
|
Copyright (c) 2007-2016 ShareX Team
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
Optionally you can also view the license at <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#endregion License Information (GPL v3)
|
|
|
|
// Credits: https://github.com/alanedwardes
|
|
|
|
using Amazon;
|
|
using Amazon.Runtime;
|
|
using Amazon.S3;
|
|
using Amazon.S3.Model;
|
|
using ShareX.HelpersLib;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Collections.Specialized;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Security.Cryptography;
|
|
|
|
namespace ShareX.UploadersLib.FileUploaders
|
|
{
|
|
public sealed class AmazonS3 : FileUploader
|
|
{
|
|
public static readonly AmazonS3Region UnknownEndpoint = new AmazonS3Region("Unknown Endpoint");
|
|
public static readonly AmazonS3Region DreamObjectsEndpoint = new AmazonS3Region("DreamObjects", "dreamobjects", "objects.dreamhost.com");
|
|
|
|
private static IList<AmazonS3Region> regionEndpoints = new List<AmazonS3Region>();
|
|
|
|
public static IEnumerable<AmazonS3Region> RegionEndpoints
|
|
{
|
|
get
|
|
{
|
|
if (!regionEndpoints.Any())
|
|
{
|
|
regionEndpoints.Add(UnknownEndpoint);
|
|
RegionEndpoint.EnumerableAllRegions.Select(r => new AmazonS3Region(r)).ForEach(regionEndpoints.Add);
|
|
regionEndpoints.Add(DreamObjectsEndpoint);
|
|
}
|
|
|
|
return regionEndpoints;
|
|
}
|
|
}
|
|
|
|
private AmazonS3Settings s3Settings { get; set; }
|
|
|
|
public AmazonS3(AmazonS3Settings s3Settings)
|
|
{
|
|
this.s3Settings = s3Settings;
|
|
}
|
|
|
|
private string GetObjectStorageClass()
|
|
{
|
|
return s3Settings.UseReducedRedundancyStorage ? "REDUCED_REDUNDANCY" : "STANDARD";
|
|
}
|
|
|
|
public static AmazonS3Region GetCurrentRegion(AmazonS3Settings s3Settings)
|
|
{
|
|
return RegionEndpoints.SingleOrDefault(r => r.Identifier == s3Settings.Endpoint) ?? UnknownEndpoint;
|
|
}
|
|
|
|
private string GetEndpoint()
|
|
{
|
|
return URLHelpers.CombineURL("https://" + GetCurrentRegion(s3Settings).Hostname, s3Settings.Bucket);
|
|
}
|
|
|
|
private AWSCredentials GetCurrentCredentials()
|
|
{
|
|
return new BasicAWSCredentials(s3Settings.AccessKeyID, s3Settings.SecretAccessKey);
|
|
}
|
|
|
|
private string GetObjectKey(string fileName)
|
|
{
|
|
var objectPrefix = NameParser.Parse(NameParserType.FolderPath, s3Settings.ObjectPrefix.Trim('/'));
|
|
return URLHelpers.CombineURL(objectPrefix, fileName);
|
|
}
|
|
|
|
private string GetObjectURL(string objectName)
|
|
{
|
|
objectName = objectName.Trim('/');
|
|
objectName = URLHelpers.URLPathEncode(objectName);
|
|
|
|
if (s3Settings.UseCustomCNAME)
|
|
{
|
|
string url;
|
|
|
|
if (!string.IsNullOrEmpty(s3Settings.CustomDomain))
|
|
{
|
|
url = URLHelpers.CombineURL(s3Settings.CustomDomain, objectName);
|
|
}
|
|
else
|
|
{
|
|
url = URLHelpers.CombineURL(s3Settings.Bucket, objectName);
|
|
}
|
|
|
|
return URLHelpers.FixPrefix(url);
|
|
}
|
|
|
|
return URLHelpers.CombineURL(GetEndpoint(), objectName);
|
|
}
|
|
|
|
public string GetURL(string fileName)
|
|
{
|
|
return GetObjectURL(GetObjectKey(fileName));
|
|
}
|
|
|
|
public string GetMd5Hash(Stream stream)
|
|
{
|
|
stream.Seek(0, SeekOrigin.Begin);
|
|
using (var md5 = MD5.Create())
|
|
{
|
|
return string.Concat(md5.ComputeHash(stream).Select(b => b.ToString("x2")));
|
|
}
|
|
}
|
|
|
|
public override UploadResult Upload(Stream stream, string fileName)
|
|
{
|
|
var validationErrors = new List<string>();
|
|
|
|
if (string.IsNullOrEmpty(s3Settings.AccessKeyID)) validationErrors.Add("'Access Key' must not be empty.");
|
|
if (string.IsNullOrEmpty(s3Settings.SecretAccessKey)) validationErrors.Add("'Secret Access Key' must not be empty.");
|
|
if (string.IsNullOrEmpty(s3Settings.Bucket)) validationErrors.Add("'Bucket' must not be empty.");
|
|
if (GetCurrentRegion(s3Settings) == UnknownEndpoint) validationErrors.Add("Please select an endpoint.");
|
|
|
|
if (validationErrors.Any())
|
|
{
|
|
return new UploadResult { Errors = validationErrors };
|
|
}
|
|
|
|
var region = GetCurrentRegion(s3Settings);
|
|
|
|
var s3ClientConfig = new AmazonS3Config();
|
|
|
|
if (region.AmazonRegion == null)
|
|
{
|
|
s3ClientConfig.ServiceURL = "https://" + region.Hostname;
|
|
}
|
|
else
|
|
{
|
|
s3ClientConfig.RegionEndpoint = region.AmazonRegion;
|
|
}
|
|
|
|
using (var client = new AmazonS3Client(GetCurrentCredentials(), s3ClientConfig))
|
|
{
|
|
var putRequest = new GetPreSignedUrlRequest
|
|
{
|
|
BucketName = s3Settings.Bucket,
|
|
Key = GetObjectKey(fileName),
|
|
Verb = HttpVerb.PUT,
|
|
Expires = DateTime.UtcNow.AddMinutes(5),
|
|
ContentType = Helpers.GetMimeType(fileName)
|
|
};
|
|
|
|
var requestHeaders = new NameValueCollection();
|
|
requestHeaders["x-amz-acl"] = "public-read";
|
|
requestHeaders["x-amz-storage-class"] = GetObjectStorageClass();
|
|
|
|
putRequest.Headers["x-amz-acl"] = "public-read";
|
|
putRequest.Headers["x-amz-storage-class"] = GetObjectStorageClass();
|
|
|
|
var responseHeaders = SendRequestStreamGetHeaders(client.GetPreSignedURL(putRequest), stream, Helpers.GetMimeType(fileName), requestHeaders, method: HttpMethod.PUT);
|
|
if (responseHeaders.Count == 0)
|
|
{
|
|
return new UploadResult { Errors = new List<string> { "Upload to Amazon S3 failed. Check your access credentials." } };
|
|
}
|
|
|
|
var eTag = responseHeaders.Get("ETag");
|
|
if (eTag == null)
|
|
{
|
|
return new UploadResult { Errors = new List<string> { "Upload to Amazon S3 failed." } };
|
|
}
|
|
|
|
if (GetMd5Hash(stream) == eTag.Replace("\"", ""))
|
|
{
|
|
return new UploadResult { IsSuccess = true, URL = GetObjectURL(putRequest.Key) };
|
|
}
|
|
|
|
return new UploadResult { Errors = new List<string> { "Upload to Amazon S3 failed, uploaded data did not match." } };
|
|
}
|
|
}
|
|
}
|
|
} |