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Fixed signature match problem
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parent
af1c47a03d
commit
5541d6136f
1 changed files with 37 additions and 29 deletions
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@ -79,26 +79,27 @@ public override UploadResult Upload(Stream stream, string fileName)
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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 signedHeaders = GetSignedHeaders(headers);
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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", signedHeaders);
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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 canonicalQueryString = CreateQueryString(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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@ -112,21 +113,20 @@ public override UploadResult Upload(Stream stream, string fileName)
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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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byte[] secretKey = Encoding.UTF8.GetBytes("AWS4" + Settings.SecretAccessKey);
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byte[] dateKey = ComputeHMAC(Encoding.UTF8.GetBytes(credentialDate), secretKey);
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byte[] dateRegionKey = ComputeHMAC(Encoding.UTF8.GetBytes(Settings.Endpoint), dateKey);
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byte[] dateRegionServiceKey = ComputeHMAC(Encoding.UTF8.GetBytes("s3"), dateRegionKey);
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byte[] signingKey = ComputeHMAC(Encoding.UTF8.GetBytes("aws4_request"), dateRegionServiceKey);
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string signature = BytesToHex(ComputeHMAC(Encoding.UTF8.GetBytes(stringToSign), signingKey));
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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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string url = URLHelpers.CombineURL(host, canonicalURI) + "?" + CreateQueryString(args);
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url = URLHelpers.ForcePrefix(url, "https://");
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NameValueCollection responseHeaders = SendRequestGetHeaders(HttpMethod.PUT, url, stream, contentType, null, headers);
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@ -136,9 +136,7 @@ public override UploadResult Upload(Stream stream, string fileName)
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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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if (responseHeaders["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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@ -147,7 +145,7 @@ public override UploadResult Upload(Stream stream, string fileName)
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return new UploadResult
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{
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IsSuccess = true,
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URL = URLHelpers.CombineURL($"https://s3.{Settings.Endpoint}.amazonaws.com", Settings.Bucket, uploadPath, fileName)
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URL = GenerateURL(fileName)
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};
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}
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@ -157,13 +155,19 @@ private string GetUploadPath(string fileName)
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return URLHelpers.CombineURL(path, fileName);
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}
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private string GenerateURL(string fileName)
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{
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string uploadPath = GetUploadPath(fileName);
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return URLHelpers.CombineURL($"https://s3.{Settings.Endpoint}.amazonaws.com", Settings.Bucket, uploadPath);
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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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result += key.ToLowerInvariant() + ":" + headers[key].Trim() + "\n";
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}
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return result;
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@ -182,12 +186,11 @@ private byte[] ComputeHash(string data)
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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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private byte[] ComputeHMAC(byte[] data, byte[] key)
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{
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using (HashAlgorithm hashAlgorithm = new HMACSHA256(Encoding.UTF8.GetBytes(key)))
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using (HashAlgorithm hashAlgorithm = new HMACSHA256(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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return hashAlgorithm.ComputeHash(data);
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}
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}
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@ -201,9 +204,14 @@ private string BytesToHex(byte[] bytes)
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return sb.ToString();
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}
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private string StringToHex(string text)
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private string CreateQueryString(Dictionary<string, string> args)
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{
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return BytesToHex(Encoding.UTF8.GetBytes(text));
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if (args != null && args.Count > 0)
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{
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return string.Join("&", args.Select(x => x.Key + "=" + URLHelpers.URLEncode(x.Value)).ToArray());
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}
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return "";
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}
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}
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}
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