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Initial Amazon S3 implementation, currently signature not matches
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parent
05400bf552
commit
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3 changed files with 211 additions and 1 deletions
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@ -511,7 +511,7 @@ private string ResponseToString(WebResponse response, ResponseType responseType
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return null;
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}
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private string CreateQuery(Dictionary<string, string> args)
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protected string CreateQuery(Dictionary<string, string> args)
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{
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if (args != null && args.Count > 0)
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{
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209
ShareX.UploadersLib/FileUploaders/AmazonS3.cs
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209
ShareX.UploadersLib/FileUploaders/AmazonS3.cs
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@ -0,0 +1,209 @@
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#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2017 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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using ShareX.UploadersLib.Properties;
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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Drawing;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Windows.Forms;
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namespace ShareX.UploadersLib.FileUploaders
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{
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public class AmazonS3NewFileUploaderService : FileUploaderService
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{
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public override FileDestination EnumValue { get; } = FileDestination.AmazonS3;
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public override Icon ServiceIcon => Resources.AmazonS3;
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public override bool CheckConfig(UploadersConfig config)
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{
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return config.AmazonS3Settings != null && !string.IsNullOrEmpty(config.AmazonS3Settings.AccessKeyID) &&
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!string.IsNullOrEmpty(config.AmazonS3Settings.SecretAccessKey) && !string.IsNullOrEmpty(config.AmazonS3Settings.Bucket) &&
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!string.IsNullOrEmpty(config.AmazonS3Settings.Endpoint);
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}
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public override GenericUploader CreateUploader(UploadersConfig config, TaskReferenceHelper taskInfo)
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{
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return new AmazonS3(config.AmazonS3Settings);
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}
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public override TabPage GetUploadersConfigTabPage(UploadersConfigForm form) => form.tpAmazonS3;
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}
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public sealed class AmazonS3 : FileUploader
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{
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private AmazonS3Settings Settings { get; set; }
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public AmazonS3(AmazonS3Settings settings)
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{
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Settings = settings;
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}
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public override UploadResult Upload(Stream stream, string fileName)
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{
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string host = $"{Settings.Bucket}.s3.{Settings.Endpoint}.amazonaws.com";
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string algorithm = "AWS4-HMAC-SHA256";
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string credentialDate = DateTime.UtcNow.ToString("yyyyMMdd", CultureInfo.InvariantCulture);
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string scope = $"{credentialDate}/{Settings.Endpoint}/s3/aws4_request";
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string credential = $"{Settings.AccessKeyID}/{scope}";
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string longDate = DateTime.UtcNow.ToString("yyyyMMddTHHmmssZ", CultureInfo.InvariantCulture);
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string expiresTotalSeconds = ((long)TimeSpan.FromHours(1).TotalSeconds).ToString();
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string contentType = Helpers.GetMimeType(fileName);
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Dictionary<string, string> args = new Dictionary<string, string>();
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args.Add("X-Amz-Algorithm", algorithm);
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args.Add("X-Amz-Credential", credential);
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args.Add("X-Amz-Date", longDate);
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args.Add("X-Amz-Expires", expiresTotalSeconds);
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args.Add("X-Amz-SignedHeaders", "content-type;host;x-amz-acl;x-amz-storage-class");
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NameValueCollection headers = new NameValueCollection();
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headers["content-type"] = contentType;
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headers["host"] = host;
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headers["x-amz-acl"] = "public-read";
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headers["x-amz-storage-class"] = Settings.UseReducedRedundancyStorage ? "REDUCED_REDUNDANCY" : "STANDARD";
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string uploadPath = GetUploadPath(fileName);
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string canonicalURI = URLHelpers.AddSlash(uploadPath, SlashType.Prefix);
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canonicalURI = URLHelpers.URLPathEncode(canonicalURI);
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string canonicalQueryString = CreateQuery(args);
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string canonicalHeaders = CreateCanonicalHeaders(headers);
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string signedHeaders = GetSignedHeaders(headers);
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string canonicalRequest = "PUT" + "\n" +
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canonicalURI + "\n" +
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canonicalQueryString + "\n" +
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canonicalHeaders + "\n" +
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signedHeaders + "\n" +
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"UNSIGNED-PAYLOAD";
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string stringToSign = algorithm + "\n" +
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longDate + "\n" +
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scope + "\n" +
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BytesToHex(ComputeHash(canonicalRequest));
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string dateKey = ComputeHMAC("AWS4" + Settings.SecretAccessKey, credentialDate);
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string dateRegionKey = ComputeHMAC(dateKey, Settings.Endpoint);
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string dateRegionServiceKey = ComputeHMAC(dateRegionKey, "s3");
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string signingKey = ComputeHMAC(dateRegionServiceKey, "aws4_request");
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string signature = StringToHex(ComputeHMAC(signingKey, stringToSign));
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args.Add("X-Amz-Signature", signature);
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headers.Remove("content-type");
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headers.Remove("host");
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string url = URLHelpers.ForcePrefix(host, "https://");
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url = URLHelpers.CombineURL(url, canonicalURI);
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url = CreateQuery(url, args);
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NameValueCollection responseHeaders = SendRequestGetHeaders(HttpMethod.PUT, url, stream, contentType, null, headers);
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if (responseHeaders == null || responseHeaders.Count == 0)
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{
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Errors.Add("Upload to Amazon S3 failed. Check your access credentials.");
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return null;
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}
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string eTag = responseHeaders.Get("ETag");
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if (eTag == null)
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{
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Errors.Add("Upload to Amazon S3 failed.");
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return null;
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}
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return new UploadResult
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{
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IsSuccess = true,
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URL = URLHelpers.CombineURL($"https://s3.{Settings.Endpoint}.amazonaws.com", Settings.Bucket, uploadPath, fileName)
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};
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}
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private string GetUploadPath(string fileName)
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{
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string path = NameParser.Parse(NameParserType.FolderPath, Settings.ObjectPrefix.Trim('/'));
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return URLHelpers.CombineURL(path, fileName);
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}
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private string CreateCanonicalHeaders(NameValueCollection headers)
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{
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string result = "";
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foreach (string key in headers)
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{
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result += key.ToLowerInvariant() + ":" + headers[key].ToLowerInvariant().Trim() + "\n";
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}
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return result;
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}
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private string GetSignedHeaders(NameValueCollection headers)
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{
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return string.Join(";", headers.AllKeys.Select(x => x.ToLowerInvariant()));
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}
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private byte[] ComputeHash(string data)
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{
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byte[] bytes = Encoding.UTF8.GetBytes(data);
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SHA256Managed hashstring = new SHA256Managed();
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byte[] hash = hashstring.ComputeHash(bytes);
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return hash;
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}
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private string ComputeHMAC(string data, string key)
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{
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using (HashAlgorithm hashAlgorithm = new HMACSHA256(Encoding.UTF8.GetBytes(key)))
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{
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byte[] buffer = Encoding.UTF8.GetBytes(data);
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return Convert.ToBase64String(hashAlgorithm.ComputeHash(buffer));
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}
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}
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private string BytesToHex(byte[] bytes)
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{
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StringBuilder sb = new StringBuilder();
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foreach (byte x in bytes)
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{
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sb.Append(string.Format("{0:x2}", x));
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}
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return sb.ToString();
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}
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private string StringToHex(string text)
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{
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return BytesToHex(Encoding.UTF8.GetBytes(text));
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}
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}
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}
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@ -114,6 +114,7 @@
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<Compile Include="BaseServices\IGenericUploaderService.cs" />
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<Compile Include="BaseServices\IUploaderService.cs" />
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<Compile Include="BaseUploaders\GenericUploader.cs" />
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<Compile Include="FileUploaders\AmazonS3.cs" />
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<Compile Include="FileUploaders\AmazonS3Settings.cs" />
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<Compile Include="FileUploaders\AzureStorage.cs" />
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<Compile Include="FileUploaders\AzureStorageSettings.cs" />
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