private static void AddCanonicalizedHeaders(WebHeaderCollection headers, CanonicalizedString canonicalizedString)
{
var keyList = new List<string>();
foreach (string key in headers.AllKeys)
{
if (key.ToLowerInvariant().StartsWith("x-ms-", StringComparison.Ordinal))
{
keyList.Add(key.ToLowerInvariant());
}
}
keyList.Sort();
foreach (string key in keyList)
{
var builder = new StringBuilder(key);
var colonAndComma = ":";
foreach (string values in GetHeaderValues(headers, key))
{
string value = values.Replace("\r\n", string.Empty);
builder.Append(colonAndComma);
builder.Append(value);
colonAndComma = ",";
}
canonicalizedString.AppendCanonicalizedElement(builder.ToString());
}
}
private static string GetCanonicalizedResourceVersion2(Uri address, string accountName)
{
var builder = new StringBuilder("/");
builder.Append(accountName);
builder.Append(address.AbsolutePath);
var canonicalizedString = new CanonicalizedString(builder.ToString());
var values = HttpUtility.ParseQueryString(address.Query);
var allValues = new WebHeaderCollection();
foreach (string key in values.AllKeys)
{
var list = new List<string>(values.GetValues(key));
list.Sort();
var innerBuilder = new StringBuilder();
foreach (object obj2 in list)
{
if (innerBuilder.Length > 0)
{
innerBuilder.Append(",");
}
innerBuilder.Append(obj2.ToString());
}
allValues.Add(string.IsNullOrWhiteSpace(key) ? key : key.ToLowerInvariant(), innerBuilder.ToString());
}
var keyList = new List<string>(allValues.AllKeys);
keyList.Sort();
foreach (string key in keyList)
{
var innerBuilder = new StringBuilder(string.Empty);
innerBuilder.Append(key);
innerBuilder.Append(":");
innerBuilder.Append(allValues[key]);
canonicalizedString.AppendCanonicalizedElement(innerBuilder.ToString());
}
return canonicalizedString.Value;
}
private static string CanonicalizeHttpRequest(string accountName, long contentLength, WebRequest webRequest)
{
var canonicalizedString = new CanonicalizedString(webRequest.Method);
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "Content-Encoding"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "Content-Language"));
canonicalizedString.AppendCanonicalizedElement((contentLength == -1L) ? string.Empty : contentLength.ToString(CultureInfo.InvariantCulture));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "Content-MD5"));
canonicalizedString.AppendCanonicalizedElement(webRequest.ContentType);
canonicalizedString.AppendCanonicalizedElement(!string.IsNullOrWhiteSpace(GetStandardHeaderValue(webRequest.Headers, "x-ms-date")) ? string.Empty : GetStandardHeaderValue(webRequest.Headers, "Date"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "If-Modified-Since"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "If-Match"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "If-None-Match"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "If-Unmodified-Since"));
canonicalizedString.AppendCanonicalizedElement(GetStandardHeaderValue(webRequest.Headers, "Range"));
AddCanonicalizedHeaders(webRequest.Headers, canonicalizedString);
AddCanonicalizedResourceVersion2(webRequest.RequestUri, accountName, canonicalizedString);
return canonicalizedString.Value;
}
private static string CanonicalizeHttpRequestLite(string accountName, string xmsdate, Uri requestUri)
{
if (string.IsNullOrWhiteSpace(xmsdate))
{
throw new ArgumentException(
string.Format(
CultureInfo.CurrentCulture,
"Canonicalization did not find a non empty x-ms-date header in the WebRequest. Please use a WebRequest with a valid x-ms-date header in RFC 123 format (example request.Headers[\"x-ms-date\"] = DateTime.UtcNow.ToString(\"R\", CultureInfo.InvariantCulture))",
new object[0]),
"xmsdate");
}
var canonicalizedString = new CanonicalizedString(xmsdate);
canonicalizedString.AppendCanonicalizedElement(GetCanonicalizedResourceLite(requestUri, accountName));
return canonicalizedString.Value;
}
private static void AddCanonicalizedResourceVersion2(Uri address, string accountName, CanonicalizedString canonicalizedString)
{
var element = GetCanonicalizedResourceVersion2(address, accountName);
canonicalizedString.AppendCanonicalizedElement(element);
}
