/// <summary>
/// Gets the current request type.
/// </summary>
/// <returns>Request command type</returns>
private RequestCommand GetRequestCommandType()
{
// Check if this is a request for $syncscopes
if (_serviceHost.RelativeUriSegments.Length == 1 &&
0 == String.Compare(_serviceHost.RelativeUriSegments[0], SyncServiceConstants.SYNC_SCOPES_URL_SEGMENT, StringComparison.InvariantCultureIgnoreCase))
{
// Only GET is allowed for $syncscopes, throw an error if the request http method is not GET.
if (0 != String.Compare(_serviceHost.RequestHttpMethod, SyncServiceConstants.HTTP_VERB_GET, StringComparison.InvariantCultureIgnoreCase))
{
throw SyncServiceException.CreateMethodNotAllowed(Strings.InvalidHttpMethodForSyncScopesRequest, SyncServiceConstants.HTTP_VERB_GET);
}
return(RequestCommand.SyncScopes);
}
// The item at index 1 of the RelativeUriSegments array contains the operation name.
if (_serviceHost.RelativeUriSegments.Length < 2 || String.IsNullOrEmpty(_serviceHost.RelativeUriSegments[1].Trim()))
{
throw SyncServiceException.CreateBadRequestError(Strings.MissingOperationNameinRequest);
}
RequestCommand requestCommand;
string operation = _serviceHost.RelativeUriSegments[1];
switch (operation.ToLowerInvariant())
{
case SyncServiceConstants.SYNC_OPERATION_UPLOAD_CHANGES:
// Only POST is allowed for upload changes, throw an error if the request http method is not POST.
if (0 != String.Compare(_serviceHost.RequestHttpMethod, SyncServiceConstants.HTTP_VERB_POST, StringComparison.InvariantCultureIgnoreCase))
{
throw SyncServiceException.CreateMethodNotAllowed(Strings.InvalidHttpMethodForUploadChangesRequest, SyncServiceConstants.HTTP_VERB_GET);
}
requestCommand = RequestCommand.UploadChanges;
break;
case SyncServiceConstants.SYNC_OPERATION_DOWNLOAD_CHANGES:
requestCommand = RequestCommand.DownloadChanges;
break;
case SyncServiceConstants.SYNC_OPERATION_SCOPE_METADATA:
// Only GET is allowed for $metadata, throw an error if the request http method is not GET.
if (0 != String.Compare(_serviceHost.RequestHttpMethod, SyncServiceConstants.HTTP_VERB_GET, StringComparison.InvariantCultureIgnoreCase))
{
throw SyncServiceException.CreateMethodNotAllowed(Strings.InvalidHttpMethodForScopeMetadataRequest, SyncServiceConstants.HTTP_VERB_GET);
}
requestCommand = RequestCommand.ScopeMetadata;
break;
default:
throw SyncServiceException.CreateBadRequestError(Strings.InvalidOperationName);
}
return(requestCommand);
}
/// <summary>
/// Validate the HTTP Verb for GET/POST and check if the URL matches the allowed format.
/// </summary>
internal void ValidateRequestHttpVerbAndSegments()
{
if (_operationContext == null)
{
throw SyncServiceException.CreateBadRequestError(Strings.NullWebOperationContext);
}
// Only allow GET and POST verbs
if (0 != String.Compare(RequestHttpMethod, "GET", StringComparison.InvariantCultureIgnoreCase) &&
0 != String.Compare(RequestHttpMethod, "POST", StringComparison.InvariantCultureIgnoreCase))
{
SyncTracer.Warning("Request HTTP method is not GET or POST. HTTP Method: {0}", RequestHttpMethod ?? String.Empty);
throw SyncServiceException.CreateMethodNotAllowed(Strings.UnsupportedHttpMethod, "GET, POST");
}
// Check if we have less than 2 relative segments. The maximum segments we can have is 2
// which is for /scope/operation.
if (RelativeUriSegments.Length > 2)
{
throw SyncServiceException.CreateBadRequestError(Strings.InvalidUrlFormat);
}
}