/// <inheritdoc/>
public Task <bool> AuthorizeAsync(SubmitContext context, ChangeSetItem item, CancellationToken cancellationToken)
{
Ensure.NotNull(context, nameof(context));
var result = true;
var returnType = typeof(bool);
var dataModification = (DataModificationItem)item;
var methodName = ConventionBasedMethodNameFactory.GetEntitySetMethodName(dataModification, RestierPipelineState.Authorization);
var method = targetType.GetQualifiedMethod(methodName);
if (method != null && method.IsFamily && method.ReturnType == returnType)
{
object target = null;
if (!method.IsStatic)
{
target = context.GetApiService <ApiBase>();
if (target == null || !targetType.IsInstanceOfType(target))
{
return(Task.FromResult(result));
}
}
var parameters = method.GetParameters();
if (parameters.Length == 0)
{
result = (bool)method.Invoke(target, null);
}
}
return(Task.FromResult(result));
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="item"></param>
/// <param name="pipelineState"></param>
/// <returns></returns>
private Task InvokeProcessorMethodAsync(SubmitContext context, ChangeSetItem item, RestierPipelineState pipelineState)
{
var dataModification = (DataModificationItem)item;
var expectedMethodName = ConventionBasedMethodNameFactory.GetEntitySetMethodName(dataModification, pipelineState);
var expectedMethod = targetApiType.GetQualifiedMethod(expectedMethodName);
if (expectedMethod == null)
{
var actualMethodName = expectedMethodName.Replace(dataModification.ExpectedResourceType.Name, dataModification.ResourceSetName);
var actualMethod = targetApiType.GetQualifiedMethod(actualMethodName);
if (actualMethod != null)
{
Trace.WriteLine($"Restier Filter expected'{expectedMethodName}' but found '{actualMethodName}'. Your method will not be called until you correct the method name.");
}
return(Task.CompletedTask);
}
if (!expectedMethod.IsFamily && !expectedMethod.IsFamilyOrAssembly)
{
Trace.WriteLine($"Restier Filter found '{expectedMethod}' but it is inaccessible due to its protection level. Your method will not be called until you change it to 'protected internal'.");
return(Task.CompletedTask);
}
if (expectedMethod.ReturnType != typeof(void) && !typeof(Task).IsAssignableFrom(expectedMethod.ReturnType))
{
Trace.WriteLine($"Restier Filter found '{expectedMethod}' but it does not return void or a Task. Your method will not be called until you correct the return type.");
return(Task.CompletedTask);
}
object target = null;
if (!expectedMethod.IsStatic)
{
target = context.Api;
if (target == null || !targetApiType.IsInstanceOfType(target))
{
Trace.WriteLine("The Restier API is of the incorrect type.");
return(Task.CompletedTask);
}
}
var parameters = GetParameters(item);
var methodParameters = expectedMethod.GetParameters();
if (ParametersMatch(methodParameters, parameters))
{
var result = expectedMethod.Invoke(target, parameters);
if (result is Task resultTask)
{
return(resultTask);
}
}
Trace.WriteLine($"Restier Authorizer found '{expectedMethod}', but it has an incorrect number of arguments or the types don't match. The number of arguments should be 1.");
return(Task.CompletedTask);
}
/// <inheritdoc/>
public Task <bool> AuthorizeAsync(SubmitContext context, ChangeSetItem item, CancellationToken cancellationToken)
{
Ensure.NotNull(context, nameof(context));
Ensure.NotNull(item, nameof(item));
var result = true;
var returnType = typeof(bool);
var dataModification = (DataModificationItem)item;
var methodName = ConventionBasedMethodNameFactory.GetEntitySetMethodName(dataModification, RestierPipelineState.Authorization);
var method = targetApiType.GetQualifiedMethod(methodName);
if (method == null)
{
return(Task.FromResult(result));
}
if (!method.IsFamily && !method.IsFamilyOrAssembly)
{
Trace.WriteLine($"Restier Authorizer found '{methodName}' but it is unaccessible due to its protection level. Your method will not be called until you change it to 'protected internal'.");
return(Task.FromResult(result));
}
if (method.ReturnType != returnType)
{
Trace.WriteLine($"Restier Authorizer found '{methodName}' but it does not return a boolean value. Your method will not be called until you correct the return type.");
return(Task.FromResult(result));
}
object target = null;
if (!method.IsStatic)
{
target = context.Api;
if (!targetApiType.IsInstanceOfType(target))
{
Trace.WriteLine("The Restier API is of the incorrect type.");
return(Task.FromResult(result));
}
}
var parameters = method.GetParameters();
if (parameters.Length == 0)
{
result = (bool)method.Invoke(target, null);
}
Trace.WriteLine($"Restier Authorizer found '{methodName}', but it has an incorrect number of arguments. The number of arguments should be 0.");
return(Task.FromResult(result));
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="item"></param>
/// <param name="pipelineState"></param>
/// <returns></returns>
private Task InvokeProcessorMethodAsync(SubmitContext context, ChangeSetItem item, RestierPipelineState pipelineState)
{
var dataModification = (DataModificationItem)item;
var expectedMethodName = ConventionBasedMethodNameFactory.GetEntitySetMethodName(dataModification, pipelineState);
var expectedMethod = targetApiType.GetQualifiedMethod(expectedMethodName);
if (!IsUsable(expectedMethod))
{
if (expectedMethod != null)
{
Trace.WriteLine($"Restier Filter found '{expectedMethodName}' but it is unaccessible due to its protection level. Your method will not be called until you change it to 'protected internal'.");
}
else
{
var actualMethodName = expectedMethodName.Replace(dataModification.ExpectedResourceType.Name, dataModification.ResourceSetName);
var actualMethod = targetApiType.GetQualifiedMethod(actualMethodName);
if (actualMethod != null)
{
Trace.WriteLine($"BREAKING: Restier Filter expected'{expectedMethodName}' but found '{actualMethodName}'. Your method will not be called until you correct the method name.");
}
}
}
else
{
object target = null;
if (!expectedMethod.IsStatic)
{
target = context.Api;
if (target == null || !targetApiType.IsInstanceOfType(target))
{
return(Task.WhenAll());
}
}
var parameters = GetParameters(item);
var methodParameters = expectedMethod.GetParameters();
if (ParametersMatch(methodParameters, parameters))
{
var result = expectedMethod.Invoke(target, parameters);
if (result is Task resultTask)
{
return(resultTask);
}
}
}
return(Task.WhenAll());
}
private Expression AppendOnFilterExpression(QueryExpressionContext context, IEdmEntitySet entitySet, IEdmEntityType entityType)
{
var expectedMethodName = ConventionBasedMethodNameFactory.GetEntitySetMethodName(entitySet, RestierPipelineState.Submit, RestierEntitySetOperation.Filter);
var expectedMethod = targetType.GetQualifiedMethod(expectedMethodName);
if (expectedMethod == null || (!expectedMethod.IsFamily && !expectedMethod.IsFamilyOrAssembly))
{
if (expectedMethod != null)
{
Debug.WriteLine($"Restier Filter found '{expectedMethodName}' but it is unaccessible due to its protection level. Change it to be 'protected internal'.");
}
else
{
var actualMethodName = expectedMethodName.Replace(entitySet.Name, entityType.Name);
var actualMethod = targetType.GetQualifiedMethod(actualMethodName);
if (actualMethod != null)
{
Debug.WriteLine($"BREAKING: Restier Filter expected'{expectedMethodName}' but found '{actualMethodName}'. Please correct the method name.");
}
}
return(null);
}
var parameter = expectedMethod.GetParameters().SingleOrDefault();
if (parameter == null || parameter.ParameterType != expectedMethod.ReturnType)
{
return(null);
}
object apiBase = null;
if (!expectedMethod.IsStatic)
{
apiBase = context.QueryContext.Api;
if (apiBase == null || !targetType.IsInstanceOfType(apiBase))
{
return(null);
}
}
// The LINQ expression built below has three cases
// For navigation property, just add a where condition from OnFilter method
// For collection property, will be like "Param_0.Prop.AsQueryable().Where(...)"
// For collection property of derived type, will be like "Param_0.Prop.AsQueryable().Where(...).OfType()"
var returnType = context.VisitedNode.Type.FindGenericType(typeof(IQueryable <>));
var enumerableQueryParameter = (object)context.VisitedNode;
Type elementType = null;
if (returnType == null)
{
// This means append for properties model reference
var collectionType = context.VisitedNode.Type.FindGenericType(typeof(ICollection <>));
if (collectionType == null)
{
return(null);
}
elementType = collectionType.GetGenericArguments()[0];
returnType = typeof(IQueryable <>).MakeGenericType(elementType);
enumerableQueryParameter = Expression.Call(ExpressionHelperMethods.QueryableAsQueryableGeneric.MakeGenericMethod(elementType), context.VisitedNode);
}
else
{
elementType = returnType.GetGenericArguments()[0];
}
var queryType = typeof(EnumerableQuery <>).MakeGenericType(elementType);
var query = Activator.CreateInstance(queryType, enumerableQueryParameter);
if (!(expectedMethod.Invoke(apiBase, new object[] { query }) is IQueryable result))
{
return(null);
}
if (expectedMethod.ReturnType == returnType)
{
if (result != query)
{
return(result.Expression);
}
}
else
{
// This means calling onFilter against derived type and based type is returned
// Need to convert back to derived type with OfType
result = ExpressionHelpers.OfType(result, elementType);
return(result.Expression);
}
return(null);
}
