internal bool TryCalculateODataUriProcessingError(ODataRequest request, DataServiceProtocolVersion maxDataServiceVersion, DataServiceProtocolVersion maxProtocolVersion, string acceptType, out ExpectedErrorMessage expectedErrorMessage)
{
expectedErrorMessage = null;
if (request.Uri.IsEntity() || request.Uri.IsEntitySet() || request.Uri.IsServiceOperation())
{
bool isEntityFromNonOperationQuery = request.GetEffectiveVerb() == HttpVerb.Get && !request.Uri.IsServiceOperation();
bool isEntityFromOperation = request.Uri.IsServiceOperation() && (request.Uri.IsEntity() || request.Uri.IsEntitySet());
// Do an EPM on all returning sets for the response
if (isEntityFromNonOperationQuery || isEntityFromOperation)
{
EntitySet startingEntitySet = null;
if (request.Uri.TryGetExpectedEntitySet(out startingEntitySet))
{
DataServiceProtocolVersion minVersion = startingEntitySet.CalculateEntitySetProtocolVersion(acceptType, VersionCalculationType.Response, maxProtocolVersion, maxDataServiceVersion);
// Check Epm First
if (maxDataServiceVersion != DataServiceProtocolVersion.Unspecified && minVersion > maxDataServiceVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(MaxDataServiceVersionTooLow, maxDataServiceVersion.ConvertToHeaderFormat(), minVersion.ConvertToIntegerFormat(), "0");
return(true);
}
}
// we need to check the root Entity Set first, then any/all, and later the Expand
foreach (EntitySet entitySet in request.Uri.GetIncludingExpandsSets())
{
DataServiceProtocolVersion minVersion = entitySet.CalculateEntitySetProtocolVersion(acceptType, VersionCalculationType.Response, maxProtocolVersion, maxDataServiceVersion);
// Check Epm First
if (maxDataServiceVersion != DataServiceProtocolVersion.Unspecified && minVersion > maxDataServiceVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(MaxDataServiceVersionTooLow, maxDataServiceVersion.ConvertToHeaderFormat(), minVersion.ConvertToIntegerFormat(), "0");
return(true);
}
}
}
}
return(false);
}
private bool TryCalculateODataResponseError(ODataRequest request, DataServiceProtocolVersion dataServiceVersion, DataServiceProtocolVersion maxDataServiceVersion, DataServiceProtocolVersion maxProtocolVersion, out ExpectedErrorMessage expectedErrorMessage)
{
expectedErrorMessage = null;
string preferHeader = request.GetHeaderValueIfExists(HttpHeaders.Prefer);
if (preferHeader != null &&
maxProtocolVersion > DataServiceProtocolVersion.V4 &&
dataServiceVersion > DataServiceProtocolVersion.V4 &&
maxDataServiceVersion != DataServiceProtocolVersion.Unspecified &&
maxDataServiceVersion < DataServiceProtocolVersion.V4 &&
request.Verb != HttpVerb.Delete)
{
expectedErrorMessage = new ExpectedErrorMessage(MaxDataServiceVersionTooLow, maxDataServiceVersion.ConvertToHeaderFormat(), DataServiceProtocolVersion.V4.ConvertToIntegerFormat(), "0");
return(true);
}
// Now do payload processing
DataServiceProtocolVersion expectedResponseVersion = this.MinimumVersionRequiredCalculator.CalculateMinResponseVersion(request, maxProtocolVersion);
// Now ensure its not greater than than MDSV
if (maxDataServiceVersion != DataServiceProtocolVersion.Unspecified && expectedResponseVersion > maxDataServiceVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(MaxDataServiceVersionTooLow, maxDataServiceVersion.ConvertToHeaderFormat(), expectedResponseVersion.ConvertToIntegerFormat(), "0");
return(true);
}
return(false);
}
internal static bool TryCalculateVersionError(DataServiceProtocolVersion calculatedUriSegmentVersion, DataServiceProtocolVersion dataServiceVersion, DataServiceProtocolVersion maxProtocolVersion, out ExpectedErrorMessage expectedErrorMessage)
{
expectedErrorMessage = null;
// First ensure that the version is greater than mpv
if (calculatedUriSegmentVersion > maxProtocolVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(DataServiceRequestVersionMustBeLessThanMPV, calculatedUriSegmentVersion.ConvertToHeaderFormat(), maxProtocolVersion.ConvertToHeaderFormat());
return(true);
}
// Now ensure its not greater than than DSV
if (calculatedUriSegmentVersion > dataServiceVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(DataServiceVersionTooLow, dataServiceVersion.ConvertToHeaderFormat(), calculatedUriSegmentVersion.ConvertToIntegerFormat(), "0");
return(true);
}
return(false);
}