| public GetEndpointForService ( string serviceName ) : Endpoint | ||
| serviceName | string | The services system name. |
| return | Endpoint | |
public AmazonS3Region(RegionEndpoint region)
{
Name = region.DisplayName;
Identifier = region.SystemName;
AmazonRegion = region;
Hostname = region.GetEndpointForService("s3").Hostname;
}
/// <summary>
/// 生成签名（带自定义查询字符串）
/// @wHaibo
/// </summary>
/// <param name="bucketName"></param>
/// <param name="fileKey"></param>
/// <param name="qs"></param>
/// <param name="expires"></param>
/// <returns></returns>
static string SignURL(string bucketName, string fileKey, NameValueCollection qs, TimeSpan expires)
{
Amazon.Runtime.BasicAWSCredentials cred = new Amazon.Runtime.BasicAWSCredentials(strAccessKey, strSecretKey);
Amazon.RegionEndpoint endpoint = Amazon.RegionEndpoint.CNNorth1;
//Amazon.RegionEndpoint endpoint = Amazon.RegionEndpoint.APNortheast1;
string host = endpoint.GetEndpointForService(bucketName + ".s3").Hostname;
string method = "GET";
string fk = fileKey.Replace("/", "_XXXX_");
string uri = "/" + System.Uri.EscapeDataString(fk);
uri = uri.Replace("_XXXX_", "/");
Console.WriteLine(uri);
DateTime dt = DateTime.Now.ToUniversalTime();
string algorithm = "AWS4-HMAC-SHA256";
string amz_date = dt.ToString("yyyyMMddTHHmmss") + "Z";
string datestamp = dt.ToString("yyyyMMdd");
string credential_scope = datestamp + "/" + endpoint.SystemName + "/s3/" + "aws4_request";
NameValueCollection queryString = new NameValueCollection();
if (qs != null && qs.Count > 0)
{
queryString.Add(qs);
}
queryString.Add("X-Amz-Algorithm", algorithm);
queryString.Add("X-Amz-Credential", String.Format("{0}/{1}",
strAccessKey, credential_scope));
queryString.Add("X-Amz-Date", amz_date);
queryString.Add("X-Amz-Expires", Math.Round(expires.TotalSeconds, 0).ToString());
queryString.Add("X-Amz-SignedHeaders", "host");
List <String> kl = queryString.AllKeys.OrderBy(x => new StringAsciiCompare(WebUtility.UrlEncode(x))).ToList();
StringBuilder sb = new StringBuilder();
foreach (string k in kl)
{
if (sb.Length > 0)
{
sb.Append("&");
}
sb.Append(WebUtility.UrlEncode(k)).Append("=");
if (!String.IsNullOrEmpty(queryString[k]))
{
sb.Append(WebUtility.UrlEncode(queryString[k]));
}
}
string canonical_headers = "host:" + host + '\n';
string signed_headers = "host";
string canonical_request = method + '\n' + uri + '\n' + sb.ToString() + '\n' + canonical_headers + '\n' + signed_headers + '\n' + "UNSIGNED-PAYLOAD";
Console.WriteLine(canonical_request);
string string_to_sign = algorithm + '\n' + amz_date + '\n' + credential_scope + '\n' + sha256(canonical_request);
byte[] signing_key = getSignatureKey(strSecretKey, datestamp, endpoint.SystemName, "s3");
string signature = BitConverter.ToString(HmacSHA256(string_to_sign, signing_key)).Replace("-", "").ToLower();
string url = "http://" + host + uri + "?" + sb.ToString() + "&X-Amz-Signature=" + signature;
return(url);
}
