private Version GetMinDataServiceVersion(Version maxProtocolVersion)
{
if (this.requestMinVersion == null)
{
this.TryGetMinDataServiceVersionFromWrappedHost(out this.requestMinVersion);
if ((maxProtocolVersion < RequestDescription.Version3Dot0) || (this.requestMinVersion == null))
{
this.requestMinVersion = RequestDescription.DataServiceDefaultResponseVersion;
}
else
{
if (this.requestMinVersion > maxProtocolVersion)
{
throw DataServiceException.CreateBadRequestError(Strings.DataService_MinDSVGreaterThanMPV(this.requestMinVersion.ToString(2), maxProtocolVersion.ToString(2)));
}
if (!RequestDescription.IsKnownRequestVersion(this.requestMinVersion))
{
throw DataServiceException.CreateBadRequestError(Strings.DataService_InvalidMinDSV(this.requestMinVersion.ToString(2), KnownDataServiceVersionsToString(GetMaxRequestVersionAllowed(maxProtocolVersion))));
}
}
}
return(this.requestMinVersion);
}
private void CheckExpandPaths()
{
if (this.expandPathsAsText.Count > 0)
{
if (this.queryExpression == null)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryExpandOptionNotApplicable);
}
if (this.description.TargetResourceType.ResourceTypeKind == ResourceTypeKind.Collection)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryExpandOptionNotApplicable);
}
}
this.expandPaths = new List <ExpandSegmentCollection>(this.expandPathsAsText.Count);
for (int i = this.expandPathsAsText.Count - 1; i >= 0; i--)
{
ExpandSegmentCollection item = this.CheckSingleExpandPath(this.expandPathsAsText[i]);
if (item == null)
{
this.expandPathsAsText.RemoveAt(i);
}
else
{
this.expandPaths.Add(item);
ExpandedProjectionNode rootProjectionNode = this.GetRootProjectionNode();
for (int j = 0; j < item.Count; j++)
{
ExpandSegment segment = item[j];
ExpandedProjectionNode node2 = rootProjectionNode.AddExpandedNode(segment);
this.GetRootProjectionNode().ExpansionOnDerivedTypesSpecified |= rootProjectionNode.HasExpandedPropertyOnDerivedType;
rootProjectionNode = node2;
}
this.GetRootProjectionNode().ExpansionsSpecified = true;
}
}
}
/// <summary>create exception when boundary delimiter is not valid</summary>
/// <param name="delimiter">delimiter specified as specified in the request.</param>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidDelimiter(string delimiter)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidDelimiter(delimiter))));
}
/// <summary>create exception when end changeset boundary delimiter is missing</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamMissingEndChangesetDelimiter()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_MissingEndChangesetDelimiter)));
}
/// <summary>create exception when operation header is specified in start of changeset</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidOperationHeaderSpecified()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidOperationHeaderSpecified)));
}
/// <summary>create exception when invalid batch request is specified</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidBatchFormat()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidBatchFormat)));
}
/// <summary>create exception when more data is specified after end of batch delimiter.</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamMoreDataAfterEndOfBatch()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_MoreDataAfterEndOfBatch)));
}
/// <summary>Creates a new exception to indicate a syntax error.</summary>
/// <param name="message">Plain text error message for this exception.</param>
/// <returns>A new exception to indicate a syntax error.</returns>
internal static DataServiceException CreateSyntaxError(string message)
{
return(DataServiceException.CreateBadRequestError(message));
}
/// <summary>internal error when content type header is missing</summary>
/// <param name="headerName">name of the missing header</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamMissingContentTypeHeader(string headerName)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_MissingContentTypeHeader(headerName))));
}
/// <summary>create exception when CUD operation is specified in batch</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamOnlyGETOperationsCanBeSpecifiedInBatch()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_OnlyGETOperationsCanBeSpecifiedInBatch)));
}
/// <summary>internal error Content-Transfer-Encoding is not specified or its value is not 'binary'</summary>
/// <param name="headerName">name of the header</param>
/// <param name="headerValue">expected value of the header</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamMissingOrInvalidContentEncodingHeader(string headerName, string headerValue)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_MissingOrInvalidContentEncodingHeader(headerName, headerValue))));
}
/// <summary>internal error number of headers at the start of changeset is not correct</summary>
/// <param name="header1">First valid header name</param>
/// <param name="header2">Second valid header name</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamInvalidNumberOfHeadersAtChangeSetStart(string header1, string header2)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidNumberOfHeadersAtChangeSetStart(header1, header2))));
}
/// <summary>internal error when http version in batching request is not valid</summary>
/// <param name="actualVersion">actual version as specified in the payload.</param>
/// <param name="expectedVersion">expected version value.</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamInvalidHttpVersionSpecified(string actualVersion, string expectedVersion)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidHttpVersionSpecified(actualVersion, expectedVersion))));
}
/// <summary>internal error where the first request header is not of the form: 'MethodName' 'Url' 'Version'</summary>
/// <param name="header">actual header value specified in the payload.</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamInvalidMethodHeaderSpecified(string header)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidMethodHeaderSpecified(header))));
}
/// <summary>internal error where batch stream does do look ahead when read request is smaller than boundary delimiter</summary>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamInternalBufferRequestTooSmall()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InternalBufferRequestTooSmall)));
}
/// <summary>create exception when header value specified is not valid</summary>
/// <param name="headerValue">header value as specified in the request.</param>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidHeaderValueSpecified(string headerValue)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidHeaderValueSpecified(headerValue))));
}
private ExpandSegmentCollection CheckSingleExpandPath(List <string> path)
{
ResourceType targetResourceType = this.description.TargetResourceType;
ResourceSetWrapper targetContainer = this.description.LastSegmentInfo.TargetContainer;
ExpandSegmentCollection segments = new ExpandSegmentCollection(path.Count);
bool flag = false;
bool previousSegmentIsTypeSegment = false;
for (int i = 0; i < path.Count; i++)
{
string propertyName = path[i];
ResourcePropertyKind stream = ResourcePropertyKind.Stream;
ResourceProperty navigationProperty = targetResourceType.TryResolvePropertyName(propertyName, stream);
if (navigationProperty == null)
{
ResourceType type2 = WebUtil.ResolveTypeIdentifier(this.service.Provider, propertyName, targetResourceType, previousSegmentIsTypeSegment);
if (type2 == null)
{
if (targetResourceType.IsOpenType)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.OpenNavigationPropertiesNotSupportedOnOpenTypes(propertyName));
}
throw DataServiceException.CreateSyntaxError(System.Data.Services.Strings.RequestUriProcessor_PropertyNotFound(targetResourceType.FullName, propertyName));
}
this.description.VerifyProtocolVersion(RequestDescription.Version3Dot0, this.service);
targetResourceType = type2;
previousSegmentIsTypeSegment = true;
}
else
{
previousSegmentIsTypeSegment = false;
if (navigationProperty.TypeKind == ResourceTypeKind.EntityType)
{
targetContainer = this.service.Provider.GetContainer(targetContainer, targetResourceType, navigationProperty);
if (targetContainer == null)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.BadRequest_InvalidPropertyNameSpecified(navigationProperty.Name, targetResourceType.FullName));
}
bool singleResult = navigationProperty.Kind == ResourcePropertyKind.ResourceReference;
DataServiceConfiguration.CheckResourceRightsForRead(targetContainer, singleResult);
Expression filter = DataServiceConfiguration.ComposeQueryInterceptors(this.service, targetContainer);
if (((targetContainer.PageSize != 0) && !singleResult) && !this.IsCustomPaged)
{
OrderingInfo orderingInfo = new OrderingInfo(true);
ParameterExpression expression = Expression.Parameter(targetContainer.ResourceType.InstanceType, "p");
foreach (ResourceProperty property2 in targetContainer.GetKeyPropertiesForOrderBy())
{
Expression expression3;
if (property2.CanReflectOnInstanceTypeProperty)
{
expression3 = Expression.Property(expression, targetContainer.ResourceType.GetPropertyInfo(property2));
}
else
{
expression3 = Expression.Convert(Expression.Call(null, DataServiceProviderMethods.GetValueMethodInfo, expression, Expression.Constant(property2)), property2.Type);
}
orderingInfo.Add(new OrderingExpression(Expression.Lambda(expression3, new ParameterExpression[] { expression }), true));
}
segments.Add(new ExpandSegment(navigationProperty.Name, filter, targetContainer.PageSize, targetContainer, targetResourceType, navigationProperty, orderingInfo));
this.description.VerifyProtocolVersion(RequestDescription.Version2Dot0, this.service);
this.description.VerifyAndRaiseResponseVersion(RequestDescription.Version2Dot0, this.service);
}
else
{
if (!singleResult && this.IsCustomPaged)
{
this.CheckAndApplyCustomPaging(null);
}
segments.Add(new ExpandSegment(navigationProperty.Name, filter, this.service.Configuration.MaxResultsPerCollection, targetContainer, targetResourceType, navigationProperty, null));
}
this.description.UpdateAndCheckEpmFeatureVersion(targetContainer, this.service);
this.description.UpdateVersions(this.service.OperationContext.Host.RequestAccept, targetContainer, this.service);
flag = false;
targetResourceType = navigationProperty.ResourceType;
}
else
{
flag = true;
}
}
}
if (previousSegmentIsTypeSegment)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryParametersPathCannotEndInTypeIdentifier("$expand", targetResourceType.FullName));
}
if (!flag)
{
return(segments);
}
return(null);
}
/// <summary>create exception when content length is not valid</summary>
/// <param name="contentLength">content length as specified in the request.</param>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidContentLengthSpecified(string contentLength)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidContentLengthSpecified(contentLength))));
}
/// <summary>Creates a new "Bad Request" exception for recursion limit exceeded.</summary>
/// <param name="recursionLimit">Recursion limit that was reaced.</param>
/// <returns>A new exception to indicate that the request is rejected.</returns>
internal static DataServiceException CreateDeepRecursion(int recursionLimit)
{
return(DataServiceException.CreateBadRequestError(Strings.BadRequest_DeepRecursion(recursionLimit)));
}
/// <summary>internal error when content type header value is invalid.</summary>
/// <param name="headerName">name of the header whose value is not correct.</param>
/// <param name="headerValue">actual value as specified in the payload</param>
/// <param name="mime1">expected value 1</param>
/// <param name="mime2">expected value 2</param>
/// <returns>exception to throw</returns>
internal static InvalidOperationException BatchStreamInvalidContentTypeSpecified(string headerName, string headerValue, string mime1, string mime2)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidContentTypeSpecified(headerName, headerValue, mime1, mime2))));
}
/// <summary>create exception when http method name is not valid</summary>
/// <param name="methodName">name of the http method as specified in the request.</param>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamInvalidHttpMethodName(string methodName)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_InvalidHttpMethodName(methodName))));
}
private void ApplyProjectionsToExpandTree(List <List <string> > selectPathsAsText)
{
for (int i = selectPathsAsText.Count - 1; i >= 0; i--)
{
List <string> list = selectPathsAsText[i];
ExpandedProjectionNode rootProjectionNode = this.GetRootProjectionNode();
ResourceType type = null;
for (int j = 0; j < list.Count; j++)
{
bool flag2;
string containerQualifiedName = list[j];
bool lastPathSegment = j == (list.Count - 1);
rootProjectionNode.ProjectionFound = true;
if (containerQualifiedName == "*")
{
rootProjectionNode.ProjectAllImmediateProperties = true;
break;
}
if (this.service.Provider.GetNameFromContainerQualifiedName(containerQualifiedName, out flag2) == "*")
{
rootProjectionNode.ProjectAllImmediateOperations = true;
break;
}
ResourceType previousSegmentResourceType = type ?? rootProjectionNode.ResourceType;
ResourceProperty property = previousSegmentResourceType.TryResolvePropertyName(containerQualifiedName);
if (property == null)
{
type = WebUtil.ResolveTypeIdentifier(this.service.Provider, containerQualifiedName, previousSegmentResourceType, type != null);
if (type != null)
{
this.description.VerifyProtocolVersion(RequestDescription.Version3Dot0, this.service);
continue;
}
Func <OperationWrapper, bool> predicate = null;
string serviceActionName = this.service.Provider.GetNameFromContainerQualifiedName(containerQualifiedName, out flag2);
OperationWrapper operation = null;
if (!previousSegmentResourceType.IsOpenType || flag2)
{
if (predicate == null)
{
predicate = o => o.Name == serviceActionName;
}
operation = this.service.ActionProvider.GetServiceActionsByBindingParameterType(this.service.OperationContext, previousSegmentResourceType).SingleOrDefault <OperationWrapper>(predicate);
}
if (operation != null)
{
rootProjectionNode.AddOperation(operation);
if (!lastPathSegment)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_ServiceActionMustBeLastSegmentInSelect(containerQualifiedName));
}
continue;
}
if (!previousSegmentResourceType.IsOpenType)
{
throw DataServiceException.CreateSyntaxError(System.Data.Services.Strings.RequestUriProcessor_PropertyNotFound(previousSegmentResourceType.FullName, containerQualifiedName));
}
if (!lastPathSegment)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.OpenNavigationPropertiesNotSupportedOnOpenTypes(containerQualifiedName));
}
}
rootProjectionNode = ApplyProjectionForProperty(rootProjectionNode, containerQualifiedName, property, previousSegmentResourceType, lastPathSegment);
type = null;
}
if (type != null)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryParametersPathCannotEndInTypeIdentifier("$select", type.FullName));
}
}
}
/// <summary>create exception when missing an expected batch boundary</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamMissingBoundary()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.DataService_InvalidContentTypeForBatchRequest)));
}
/// <summary>Creates a new "Bad Request" exception for recursion limit exceeded.</summary>
/// <returns>A new exception to indicate that the request is rejected.</returns>
internal static DataServiceException CreateDeepRecursion_General()
{
return(DataServiceException.CreateBadRequestError(Strings.BadRequest_DeepRecursion_General));
}
/// <summary>create exception when unexpected content is discovered</summary>
/// <param name="state">http method operation</param>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamContentUnexpected(BatchStreamState state)
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_ContentUnexpected(state.ToString()))));
}
/// <summary>
/// If the provider implements IConcurrencyProvider, then this method passes the etag values
/// to the provider, otherwise compares the etag itself.
/// </summary>
/// <param name="resourceCookie">etag values for the given resource.</param>
/// <param name="container">container for the given resource.</param>
internal void SetETagValues(object resourceCookie, ResourceSetWrapper container)
{
Debug.Assert(resourceCookie != null, "resourceCookie != null");
Debug.Assert(container != null, "container != null");
DataServiceHostWrapper host = this.service.OperationContext.Host;
Debug.Assert(String.IsNullOrEmpty(host.RequestIfNoneMatch), "IfNoneMatch header cannot be specified for Update/Delete operations");
// Resolve the cookie first to the actual resource type
object actualEntity = this.ResolveResource(resourceCookie);
Debug.Assert(actualEntity != null, "actualEntity != null");
ResourceType resourceType = WebUtil.GetNonPrimitiveResourceType(this.service.Provider, actualEntity);
Debug.Assert(resourceType != null, "resourceType != null");
IList <ResourceProperty> etagProperties = this.service.Provider.GetETagProperties(container.Name, resourceType);
if (etagProperties.Count == 0)
{
if (!String.IsNullOrEmpty(host.RequestIfMatch))
{
throw DataServiceException.CreateBadRequestError(Strings.Serializer_NoETagPropertiesForType);
}
// If the type has no etag properties, then we do not need to do any etag checks
return;
}
// If the provider implements IConcurrencyProvider, then we need to call the provider
// and pass the etag values. Else, we need to compare the etag values ourselves.
IDataServiceUpdateProvider concurrencyProvider = this.updateProvider as IDataServiceUpdateProvider;
if (concurrencyProvider != null)
{
bool?checkForEquality = null;
IEnumerable <KeyValuePair <string, object> > etagValues = null;
if (!String.IsNullOrEmpty(host.RequestIfMatch))
{
checkForEquality = true;
etagValues = ParseETagValue(etagProperties, host.RequestIfMatch);
}
else
{
etagValues = new KeyValuePair <string, object> [0];
}
concurrencyProvider.SetConcurrencyValues(resourceCookie, checkForEquality, etagValues);
}
else if (String.IsNullOrEmpty(host.RequestIfMatch))
{
throw DataServiceException.CreateBadRequestError(Strings.DataService_CannotPerformOperationWithoutETag(resourceType.FullName));
}
else if (host.RequestIfMatch != XmlConstants.HttpAnyETag)
{
// Compare If-Match header value with the current etag value, if the If-Match header value is not equal to '*'
string etagValue = WebUtil.GetETagValue(resourceCookie, resourceType, etagProperties, this.service, false /*getMethod*/);
Debug.Assert(!String.IsNullOrEmpty(etagValue), "etag value can never be null");
if (etagValue != host.RequestIfMatch)
{
throw DataServiceException.CreatePreConditionFailedError(Strings.Serializer_ETagValueDoesNotMatch);
}
}
}
/// <summary>create exception when Get operation is specified in changeset</summary>
/// <returns>exception to throw</returns>
internal static DataServiceException BatchStreamGetMethodNotSupportInChangeset()
{
return(Trace(DataServiceException.CreateBadRequestError(Strings.BatchStream_GetMethodNotSupportedInChangeset)));
}
