/// <summary>
/// Parse Uri for SAS (Shared access signature) information.
/// </summary>
/// <param name="address">The complete Uri.</param>
/// <param name="parsedCredentials">The credentials to use.</param>
/// <param name="parsedSnapshot">The parsed snapshot.</param>
/// <returns>The blob URI without credentials or snapshot info</returns>
/// <exception cref="System.ArgumentException">address</exception>
/// <remarks>
/// Validate that no other query parameters are passed in.
/// Any SAS information will be recorded as corresponding credentials instance.
/// If credentials is passed in and it does not match the SAS information found, an
/// exception will be thrown.
/// Otherwise a new client is created based on SAS information or as anonymous credentials.
/// </remarks>
private static Uri ParseBlobQueryAndVerify(Uri address, out StorageCredentials parsedCredentials, out DateTimeOffset?parsedSnapshot)
{
parsedCredentials = null;
parsedSnapshot = null;
if (address == null)
{
return(null);
}
if (!address.IsAbsoluteUri)
{
string errorMessage = string.Format(CultureInfo.CurrentCulture, SR.RelativeAddressNotPermitted, address.ToString());
throw new ArgumentException(errorMessage, "address");
}
IDictionary <string, string> queryParameters = HttpWebUtility.ParseQueryString(address.Query);
string snapshot;
if (queryParameters.TryGetValue(Constants.QueryConstants.Snapshot, out snapshot))
{
if (!string.IsNullOrEmpty(snapshot))
{
parsedSnapshot = ParseSnapshotTime(snapshot);
}
}
parsedCredentials = SharedAccessSignatureHelper.ParseQuery(queryParameters);
// SAS credentials were passed in the Uri if parsedCredentials is non null.
if (parsedCredentials != null)
{
string signedResource;
queryParameters.TryGetValue(Constants.QueryConstants.SignedResource, out signedResource);
if (string.IsNullOrEmpty(signedResource))
{
string errorMessage = string.Format(CultureInfo.CurrentCulture, SR.MissingMandatoryParametersForSAS);
throw new ArgumentException(errorMessage);
}
}
return(new Uri(address.GetComponents(UriComponents.SchemeAndServer | UriComponents.Path, UriFormat.UriEscaped)));
}
/// <summary>
/// Parse Uri for SAS (Shared access signature) information.
/// </summary>
/// <param name="address">The complete Uri.</param>
/// <param name="parsedCredentials">The credentials to use.</param>
/// <remarks>
/// Validate that no other query parameters are passed in.
/// Any SAS information will be recorded as corresponding credentials instance.
/// If credentials is passed in and it does not match the SAS information found, an
/// exception will be thrown.
/// Otherwise a new client is created based on SAS information or as anonymous credentials.
/// </remarks>
private static Uri ParseQueueTableQueryAndVerify(Uri address, out StorageCredentials parsedCredentials)
{
parsedCredentials = null;
if (address == null)
{
return(null);
}
if (!address.IsAbsoluteUri)
{
string errorMessage = string.Format(CultureInfo.InvariantCulture, SR.RelativeAddressNotPermitted, address.ToString());
throw new ArgumentException(errorMessage, "address");
}
IDictionary <string, string> queryParameters = HttpWebUtility.ParseQueryString(address.Query);
parsedCredentials = SharedAccessSignatureHelper.ParseQuery(queryParameters);
return(new Uri(address.GetComponents(UriComponents.SchemeAndServer | UriComponents.Path, UriFormat.UriEscaped)));
}
public static string GetCanonicalizedResourceString(Uri uri, string accountName, bool isSharedKeyLiteOrTableService = false)
{
StringBuilder canonicalizedResource = new StringBuilder(ExpectedResourceStringLength);
canonicalizedResource.Append('/');
canonicalizedResource.Append(accountName);
canonicalizedResource.Append(GetAbsolutePathWithoutSecondarySuffix(uri, accountName));
IDictionary <string, string> queryParameters = HttpWebUtility.ParseQueryString(uri.Query);
if (!isSharedKeyLiteOrTableService)
{
List <string> queryParameterNames = new List <string>(queryParameters.Keys);
queryParameterNames.Sort(StringComparer.OrdinalIgnoreCase);
foreach (string queryParameterName in queryParameterNames)
{
canonicalizedResource.Append('\n');
canonicalizedResource.Append(queryParameterName.ToLowerInvariant());
canonicalizedResource.Append(':');
canonicalizedResource.Append(queryParameters[queryParameterName]);
}
}
else
{
// Add only the comp parameter
string compQueryParameterValue;
if (queryParameters.TryGetValue("comp", out compQueryParameterValue))
{
canonicalizedResource.Append("?comp=");
canonicalizedResource.Append(compQueryParameterValue);
}
}
return(canonicalizedResource.ToString());
}
