/// <summary>
/// Add the appropriate Authorization header to the WebRequest
/// </summary>
private void AddAuthorizationHeader(WebRequest webRequest, string bucket, string key, SortedList query)
{
if (webRequest.Headers[ThreeSharpUtils.ALTERNATIVE_DATE_HEADER] == null)
{
webRequest.Headers.Add(ThreeSharpUtils.ALTERNATIVE_DATE_HEADER, ThreeSharpUtils.GetHttpDate());
}
string canonicalString = ThreeSharpUtils.MakeCanonicalString(bucket, key, query, webRequest);
string encodedCanonical = ThreeSharpUtils.Encode(config.AwsSecretAccessKey, canonicalString, false);
webRequest.Headers.Add(HttpRequestHeader.Authorization, "AWS " + config.AwsAccessKeyID + ":" + encodedCanonical);
}
/// <summary>
/// Generates a URL to access an object in a bucket
/// </summary>
public UrlGetResponse UrlGet(UrlGetRequest request)
{
UrlGetResponse response = new UrlGetResponse();
long expires = (ThreeSharpUtils.CurrentTimeMillis() + request.ExpiresIn) / 1000;
string canonicalString = ThreeSharpUtils.MakeCanonicalString(request.Method, request.BucketName, request.Key, null, null, expires.ToString());
string encodedCanonical = ThreeSharpUtils.Encode(config.AwsSecretAccessKey, canonicalString, true);
StringBuilder builder = new StringBuilder();
if (config.IsSecure)
{
builder.Append("https://");
}
else
{
builder.Append("http://");
}
builder.Append(ThreeSharpUtils.BuildUrlBase(config.Server, config.Port, request.BucketName, config.Format));
if (!String.IsNullOrEmpty(request.BucketName) && !String.IsNullOrEmpty(request.Key))
{
builder.Append(request.Key);
}
request.QueryList.Add("Signature", encodedCanonical);
request.QueryList.Add("Expires", "" + expires);
request.QueryList.Add("AWSAccessKeyId", config.AwsAccessKeyID);
builder.Append(ThreeSharpUtils.ConvertQueryListToQueryString(request.QueryList));
String url = builder.ToString();
byte[] urlBytes = (new ASCIIEncoding()).GetBytes(url);
response.DataStream = new MemoryStream(urlBytes.Length);
response.DataStream.Write(urlBytes, 0, urlBytes.Length);
response.DataStream.Position = 0;
response.BucketName = request.BucketName;
response.Key = request.Key + "-URL";
response.Method = request.Method;
response.TransferInfo = new TransferInfo(response);
lock (this.statistics) { this.statistics.AddTransferInfo(response.TransferInfo); }
return(response);
}
/// <summary>
/// Add the appropriate Authorization header to the WebRequest
/// </summary>
///
private void AddAuthorizationHeader(WebRequest webRequest, Request request)
{
if (webRequest.Headers[ThreeSharpUtils.ALTERNATIVE_DATE_HEADER] == null)
{
webRequest.Headers.Add(ThreeSharpUtils.ALTERNATIVE_DATE_HEADER, ThreeSharpUtils.GetHttpDate());
}
if (request.ServiceType == ThreeSharpServiceType.AWS100)
{
Encoding ae = new UTF8Encoding();
HMACSHA1 signature = new HMACSHA1(ae.GetBytes(config.AwsSecretAccessKey.ToCharArray()));
string b64 = Convert.ToBase64String(signature.ComputeHash(ae.GetBytes(webRequest.Headers[ThreeSharpUtils.ALTERNATIVE_DATE_HEADER].ToCharArray())));
webRequest.Headers.Add(HttpRequestHeader.Authorization, "AWS" + " " + config.AwsAccessKeyID + ":" + b64);
}
else
{
string canonicalString = ThreeSharpUtils.MakeCanonicalString(request.BucketName, request.Key, request.QueryList, webRequest);
string encodedCanonical = ThreeSharpUtils.Encode(config.AwsSecretAccessKey, canonicalString, false);
webRequest.Headers.Add(HttpRequestHeader.Authorization, "AWS " + config.AwsAccessKeyID + ":" + encodedCanonical);
}
}
