internal static void CheckSyntaxValid(bool valid)
{
if (!valid)
{
throw DataServiceException.CreateSyntaxError();
}
}
internal static void CheckResourceNotCollectionForOpenProperty(ResourceType resourceType, string propertyName)
{
if ((resourceType.ResourceTypeKind == ResourceTypeKind.Collection) || (resourceType.ResourceTypeKind == ResourceTypeKind.EntityCollection))
{
throw DataServiceException.CreateSyntaxError(System.Data.Services.Strings.InvalidUri_OpenPropertiesCannotBeCollection(propertyName));
}
}
string IDataServiceHost.GetQueryStringItem(string item)
{
WebUtil.CheckArgumentNull <string>(item, "item");
NameValueCollection queryParameters = WebOperationContext.Current.IncomingRequest.UriTemplateMatch.QueryParameters;
string[] values = queryParameters.GetValues(item);
if ((values == null) || (values.Length == 0))
{
string str = null;
foreach (string str2 in queryParameters.Keys)
{
if ((str2 != null) && StringComparer.OrdinalIgnoreCase.Equals(str2.Trim(), item))
{
if (str != null)
{
throw DataServiceException.CreateBadRequestError(Strings.HttpContextServiceHost_AmbiguousItemName(item, str, str2));
}
str = str2;
values = queryParameters.GetValues(str2);
}
}
if ((values == null) || (values.Length == 0))
{
return(null);
}
}
if (values.Length != 1)
{
throw DataServiceException.CreateSyntaxError();
}
return(values[0]);
}
private bool ReadSkipOrTopArgument(string queryItem, out int count)
{
string queryStringItem = this.service.OperationContext.Host.GetQueryStringItem(queryItem);
if (string.IsNullOrEmpty(queryStringItem))
{
count = 0;
return(false);
}
if (!int.TryParse(queryStringItem, NumberStyles.Integer, CultureInfo.InvariantCulture, out count))
{
throw DataServiceException.CreateSyntaxError(System.Data.Services.Strings.RequestQueryProcessor_IncorrectArgumentFormat(queryItem, queryStringItem));
}
return(true);
}
/// <summary>
/// Checks query result.
/// </summary>
/// <param name="result">Query result to be checked.</param>
/// <param name="segmentInfo">Segment details for the <paramref name="result"/>.</param>
internal static void CheckQueryResult(object result, SegmentInfo segmentInfo)
{
// e.g. /Customers(4) - if there is a direct reference to an entity, it should not be null.
// e.g. $value also must not be null, since you are dereferencing the values
// Any other case, having null is fine
if (segmentInfo.IsDirectReference && result == null)
{
throw DataServiceException.CreateResourceNotFound(segmentInfo.Identifier);
}
IEnumerable enumerable;
if (segmentInfo.TargetKind == RequestTargetKind.OpenProperty &&
WebUtil.IsElementIEnumerable(result, out enumerable))
{
throw DataServiceException.CreateSyntaxError(
Strings.InvalidUri_OpenPropertiesCannotBeCollection(segmentInfo.Identifier));
}
}
/// <summary>Gets the value for the specified item in the request query string.</summary>
/// <param name="item">Item to return.</param>
/// <returns>
/// The value for the specified item in the request query string;
/// null if <paramref name="item"/> is not found.
/// </returns>
string IDataServiceHost.GetQueryStringItem(string item)
{
Debug.Assert(item != null, "item != null");
Debug.Assert(item.Trim() == item, "item.Trim() == item - otherwise, there are leading/trailing spaces in the name");
System.Collections.Specialized.NameValueCollection collection = this.operationContext.IncomingRequest.UriTemplateMatch.QueryParameters;
string[] values = collection.GetValues(item);
if (values == null || values.Length == 0)
{
// Do a scan of arguments ignoring whitespace (SQLBUDT #555944).
string keyFound = null;
foreach (string key in collection.Keys)
{
if (key != null && StringComparer.OrdinalIgnoreCase.Equals(key.Trim(), item))
{
if (keyFound != null)
{
throw DataServiceException.CreateBadRequestError(Strings.HttpContextServiceHost_AmbiguousItemName(item, keyFound, key));
}
keyFound = key;
values = collection.GetValues(key);
}
}
if (values == null || values.Length == 0)
{
return(null);
}
}
Debug.Assert(values != null && values.Length > 0, "values != null && values.Length > 0 - otherwise we should have returned already");
if (values.Length == 1)
{
return(values[0]);
}
else
{
throw DataServiceException.CreateSyntaxError();
}
}
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));
}
}
}
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);
}
