public ModelAttributesInfo(Type modelType)
{
QueryAuthAttributes = GetAuthAttributesOfClassOrDirectTopClass <QueryAuthAttribute>(modelType);
QueryEntryAuthAttributes = GetAuthAttributesOfClassOrDirectTopClass <QueryEntryAuthAttribute>(modelType);
UpdateAuthAttributes = GetAuthAttributesOfClassOrDirectTopClass <UpdateAuthAttribute>(modelType);
RemoveAuthAttributes = GetAuthAttributesOfClassOrDirectTopClass <RemoveAuthAttribute>(modelType);
CreateAuthAttributes = GetAuthAttributesOfClassOrDirectTopClass <CreateAuthAttribute>(modelType);
CreateEventAttributes = GetHookAttributeOfClassAndTopClasses <CreateEventAttribute>(modelType);
UpdateEventAttributes = GetHookAttributeOfClassAndTopClasses <UpdateEventAttribute>(modelType);
RemoveEventAttributes = GetHookAttributeOfClassAndTopClasses <RemoveEventAttribute>(modelType);
QueryFunctionAttribute = modelType.GetCustomAttribute <QueryFunctionAttribute>(false);
QueryFunctionAttribute?.Compile(modelType);
UpdatableAttribute = modelType.GetCustomAttribute <UpdatableAttribute>(false);
}
public void HandleCollections(ConnectionBase connection, string contextName, Type dbContextType,
List <ChangeResponse> changes, IServiceProvider requestServiceProvider)
{
IEnumerable <IGrouping <string, CollectionSubscription> > subscriptionGroupings = connection.Subscriptions
.Where(s => s.ContextName == contextName)
.GroupBy(s => s.CollectionName);
foreach (IGrouping <string, CollectionSubscription> subscriptionGrouping in subscriptionGroupings)
{
KeyValuePair <Type, string> property = dbContextType.GetDbSetType(subscriptionGrouping.Key);
List <ChangeResponse> changesForCollection = changes
.Where(c => c.CollectionName == subscriptionGrouping.Key)
.ToList();
AuthModelInfo modelInfo = property.Key.GetAuthModelInfos();
IEnumerable <ChangeResponse> authenticatedChanges = changesForCollection;
if (modelInfo.QueryEntryAuthAttributes.Any())
{
authenticatedChanges = changesForCollection
.Where(change => change.State == ChangeResponse.ChangeState.Deleted ||
property.Key.CanQueryEntry(connection.Information, requestServiceProvider,
change.Value));
IEnumerable <ChangeResponse> oldLoadedNotAllowed = changesForCollection
.Where(change => change.State == ChangeResponse.ChangeState.Modified &&
!property.Key.CanQueryEntry(connection.Information, requestServiceProvider,
change.Value))
.Select(change =>
{
ChangeResponse newChangeResponse = change.CreateResponse(null, change.Value);
newChangeResponse.State = ChangeResponse.ChangeState.Deleted;
return(newChangeResponse);
});
authenticatedChanges = authenticatedChanges.Concat(oldLoadedNotAllowed);
}
List <ChangeResponse> collectionChanges = authenticatedChanges.ToList();
if (collectionChanges.Any())
{
QueryFunctionAttribute queryFunctionAttribute =
property.Key.GetCustomAttribute <QueryFunctionAttribute>(false);
if (queryFunctionAttribute != null)
{
var queryFunctionInfo = property.Key.GetMethod(queryFunctionAttribute.Function,
BindingFlags.Default | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
if (queryFunctionInfo != null)
{
object[] methodParameters =
queryFunctionInfo.CreateParameters(connection.Information, serviceProvider);
dynamic queryFunctionExpression =
((dynamic)queryFunctionInfo.Invoke(null, methodParameters)).Compile();
collectionChanges = collectionChanges.Where(change => queryFunctionExpression(change.Value))
.ToList();
}
}
}
foreach (CollectionSubscription subscription in subscriptionGrouping)
{
Task.Run(() =>
{
HandleSubscription(subscription, dbContextType, requestServiceProvider, connection,
property, collectionChanges, changes);
});
}
}
}
