/// <summary>
/// Canonicalizes the HTTP headers.
/// </summary>
/// <param name="method">The HTTP method for the request.</param>
/// <param name="contentLength">The length of the content.</param>
/// <param name="requestHeaders">The request headers.</param>
/// <param name="contentHeaders">The content headers.</param>
/// <returns>A string representation of the HTTP headers.</returns>
private static string CanonicalizeHttpHeaders(
HttpMethod method,
long?contentLength,
HttpRequestHeaders requestHeaders,
HttpContentHeaders contentHeaders)
{
var headerPortion = new CanonicalizedStringBuilder();
headerPortion.Append(method.Method.ToUpperInvariant());
if (contentHeaders == null)
{
headerPortion.Append(string.Empty); // Encoding
headerPortion.Append(string.Empty); // Language
// We treat null content lengths as a zero because when HttpClient sends a message without a body it adds a Content-Length=0 after the signing has taken place
headerPortion.Append(0); // Length
headerPortion.Append(string.Empty); // MD5
headerPortion.Append(string.Empty); // Type
}
else
{
headerPortion.Append(contentHeaders.ContentEncoding);
headerPortion.Append(contentHeaders.ContentLanguage);
headerPortion.Append(contentLength == null ? "0" : ((long)contentLength).ToString(CultureInfo.InvariantCulture));
headerPortion.Append(contentHeaders.ContentMD5 == null ? string.Empty : Convert.ToBase64String(contentHeaders.ContentMD5));
headerPortion.Append(contentHeaders.ContentType);
}
headerPortion.Append(requestHeaders.Date.HasValue ? requestHeaders.Date.Value.ToString("R", CultureInfo.InvariantCulture) : null);
headerPortion.Append(requestHeaders.IfModifiedSince);
headerPortion.Append(requestHeaders.IfMatch);
headerPortion.Append(requestHeaders.IfNoneMatch);
headerPortion.Append(requestHeaders.IfUnmodifiedSince);
headerPortion.Append(requestHeaders.Range);
return(headerPortion.ToString());
}
private static string CanonicalizeResource(string path, NameValueCollection queryString, string accountName)
{
var canonicalizedResource = new CanonicalizedStringBuilder('/' + accountName + path);
var queryStringParameters = from q in queryString.AllKeys.Distinct() orderby q select q;
foreach (var key in queryStringParameters)
{
var parameterBuilder = new StringBuilder(key.ToLowerInvariant()).Append(':');
foreach (var value in queryString[key])
{
parameterBuilder.Append(value);
parameterBuilder.Append(',');
}
canonicalizedResource.Append(parameterBuilder.ToString().TrimEnd(','));
}
return(canonicalizedResource.ToString());
}
/// <summary>
/// Canonicalizes the HTTP headers.
/// </summary>
/// <param name="method">The HTTP method for the request.</param>
/// <param name="contentLength">The length of the content.</param>
/// <param name="requestHeaders">The request headers.</param>
/// <param name="contentHeaders">The content headers.</param>
/// <returns>A string representation of the HTTP headers.</returns>
private static string CanonicalizeHttpHeaders(
HttpMethod method,
long? contentLength,
HttpRequestHeaders requestHeaders,
HttpContentHeaders contentHeaders)
{
var headerPortion = new CanonicalizedStringBuilder();
headerPortion.Append(method.Method.ToUpperInvariant());
if (contentHeaders == null)
{
headerPortion.Append(string.Empty); // Encoding
headerPortion.Append(string.Empty); // Language
// We treat null content lengths as a zero because when HttpClient sends a message without a body it adds a Content-Length=0 after the signing has taken place
headerPortion.Append(0); // Length
headerPortion.Append(string.Empty); // MD5
headerPortion.Append(string.Empty); // Type
}
else
{
headerPortion.Append(contentHeaders.ContentEncoding);
headerPortion.Append(contentHeaders.ContentLanguage);
headerPortion.Append(contentLength == null ? "0" : ((long)contentLength).ToString(CultureInfo.InvariantCulture));
headerPortion.Append(contentHeaders.ContentMD5 == null ? string.Empty : Convert.ToBase64String(contentHeaders.ContentMD5));
headerPortion.Append(contentHeaders.ContentType);
}
headerPortion.Append(requestHeaders.Date.HasValue ? requestHeaders.Date.Value.ToString("R", CultureInfo.InvariantCulture) : null);
headerPortion.Append(requestHeaders.IfModifiedSince);
headerPortion.Append(requestHeaders.IfMatch);
headerPortion.Append(requestHeaders.IfNoneMatch);
headerPortion.Append(requestHeaders.IfUnmodifiedSince);
headerPortion.Append(requestHeaders.Range);
return headerPortion.ToString();
}
private static string CanonicalizeResource(string path, NameValueCollection queryString, string accountName)
{
var canonicalizedResource = new CanonicalizedStringBuilder('/' + accountName + path);
var queryStringParameters = from q in queryString.AllKeys.Distinct() orderby q select q;
foreach (var key in queryStringParameters)
{
var parameterBuilder = new StringBuilder(key.ToLowerInvariant()).Append(':');
foreach (var value in queryString[key])
{
parameterBuilder.Append(value);
parameterBuilder.Append(',');
}
canonicalizedResource.Append(parameterBuilder.ToString().TrimEnd(','));
}
return canonicalizedResource.ToString();
}
