/// <summary>
/// Processes the specified block action.
/// </summary>
/// <param name="controller">The API controller that initiated this action.</param>
/// <param name="block">The block.</param>
/// <param name="actionName">Name of the action.</param>
/// <param name="actionParameters">The action parameters.</param>
/// <param name="bodyParameters">The posted body parameters.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">actionName
/// or
/// actionData</exception>
internal static IHttpActionResult InvokeAction(ApiControllerBase controller, Blocks.IRockBlockType block, string actionName, Dictionary <string, JToken> actionParameters, JToken bodyParameters)
{
// Parse the body content into our normal parameters.
if (bodyParameters != null)
{
try
{
// Parse any posted parameter data, existing query string
// parameters take precedence.
foreach (var kvp in bodyParameters.ToObject <Dictionary <string, JToken> >())
{
actionParameters.AddOrIgnore(kvp.Key, kvp.Value);
}
}
catch
{
return(new BadRequestErrorMessageResult("Invalid parameter data.", controller));
}
}
//
// Find the action they requested. First search by name
// and then further filter by any method constraint attributes.
//
var actions = block.GetType().GetMethods(BindingFlags.Instance | BindingFlags.Public)
.Where(m => m.GetCustomAttribute <Blocks.BlockActionAttribute>()?.ActionName == actionName)
.ToList();
if (actions.Count == 0)
{
return(new NotFoundResult(controller));
}
var action = FindBestActionForParameters(actions, actionParameters);
if (action == null)
{
// This is an actual configuration error, so throw an error.
throw new AmbiguousMatchException("The request matched multiple actions.");
}
var methodParameters = action.GetParameters();
var parameters = new List <object>();
//
// Go through each parameter and convert it to the proper type.
//
for (int i = 0; i < methodParameters.Length; i++)
{
// Check if this parameter is requesting it's content from the body.
if (methodParameters[i].GetCustomAttribute <FromBodyAttribute>() != null)
{
if (bodyParameters != null)
{
parameters.Add(bodyParameters.ToObject(methodParameters[i].ParameterType));
}
else if (methodParameters[i].IsOptional)
{
parameters.Add(Type.Missing);
}
else
{
return(new BadRequestErrorMessageResult($"Parameter '{methodParameters[i].Name}' is required.", controller));
}
continue;
}
var key = actionParameters.Keys.SingleOrDefault(k => k.ToLowerInvariant() == methodParameters[i].Name.ToLower());
if (key != null)
{
try
{
//
// If the target type is nullable and the action parameter is an empty
// string then consider it null. A GET query cannot have null values.
//
if (Nullable.GetUnderlyingType(methodParameters[i].ParameterType) != null)
{
if (actionParameters[key].Type == JTokenType.String && actionParameters[key].ToString() == string.Empty)
{
parameters.Add(null);
continue;
}
}
parameters.Add(actionParameters[key].ToObject(methodParameters[i].ParameterType));
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(new BadRequestErrorMessageResult($"Parameter type mismatch for '{methodParameters[i].Name}'.", controller));
}
}
else if (methodParameters[i].IsOptional)
{
parameters.Add(Type.Missing);
}
else
{
return(new BadRequestErrorMessageResult($"Parameter '{methodParameters[i].Name}' is required.", controller));
}
}
object result;
try
{
result = action.Invoke(block, parameters.ToArray());
}
catch (TargetInvocationException ex)
{
ExceptionLogService.LogApiException(ex.InnerException, controller.Request, GetPerson(controller, null)?.PrimaryAlias);
result = new BlockActionResult(HttpStatusCode.InternalServerError, GetMessageForClient(ex));
}
catch (Exception ex)
{
ExceptionLogService.LogApiException(ex, controller.Request, GetPerson(controller, null)?.PrimaryAlias);
result = new BlockActionResult(HttpStatusCode.InternalServerError, GetMessageForClient(ex));
}
//
// Handle the result type.
//
if (result is IHttpActionResult httpActionResult)
{
return(httpActionResult);
}
else if (result is BlockActionResult actionResult)
{
var isErrorStatusCode = ( int )actionResult.StatusCode >= 400;
if (isErrorStatusCode && actionResult.Content is string)
{
return(new NegotiatedContentResult <HttpError>(actionResult.StatusCode, new HttpError(actionResult.Content.ToString()), controller));
}
else if (actionResult.Error != null)
{
return(new NegotiatedContentResult <HttpError>(actionResult.StatusCode, new HttpError(actionResult.Error), controller));
}
else if (actionResult.Content is HttpContent httpContent)
{
var response = controller.Request.CreateResponse(actionResult.StatusCode);
response.Content = httpContent;
return(new ResponseMessageResult(response));
}
else if (actionResult.ContentClrType != null)
{
var genericType = typeof(System.Web.Http.Results.NegotiatedContentResult <>).MakeGenericType(actionResult.ContentClrType);
return(( IHttpActionResult )Activator.CreateInstance(genericType, actionResult.StatusCode, actionResult.Content, controller));
}
else
{
return(new StatusCodeResult(actionResult.StatusCode, controller));
}
}
else if (action.ReturnType == typeof(void))
{
return(new OkResult(controller));
}
else
{
return(new OkNegotiatedContentResult <object>(result, controller));
}
}
/// <summary>
/// Processes the specified block action.
/// </summary>
/// <param name="block">The block.</param>
/// <param name="verb">The HTTP Method Verb that was used for the request.</param>
/// <param name="actionName">Name of the action.</param>
/// <param name="actionParameters">The action parameters.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">
/// actionName
/// or
/// actionData
/// </exception>
private IHttpActionResult InvokeAction(Blocks.IRockBlockType block, string verb, string actionName, Dictionary <string, JToken> actionParameters)
{
MethodInfo action;
//
// Find the action they requested.
//
action = block.GetType().GetMethods(BindingFlags.Instance | BindingFlags.Public)
.SingleOrDefault(m => m.GetCustomAttribute <Blocks.BlockActionAttribute>()?.ActionName == actionName);
if (action == null)
{
return(NotFound());
}
var methodParameters = action.GetParameters();
var parameters = new List <object>();
//
// Go through each parameter and convert it to the proper type.
//
for (int i = 0; i < methodParameters.Length; i++)
{
var key = actionParameters.Keys.SingleOrDefault(k => k.ToLowerInvariant() == methodParameters[i].Name.ToLower());
if (key != null)
{
try
{
//
// If the target type is nullable and the action parameter is an empty
// string then consider it null. A GET query cannot have null values.
//
if (Nullable.GetUnderlyingType(methodParameters[i].ParameterType) != null)
{
if (actionParameters[key].Type == JTokenType.String && actionParameters[key].ToString() == string.Empty)
{
parameters.Add(null);
continue;
}
}
parameters.Add(actionParameters[key].ToObject(methodParameters[i].ParameterType));
}
catch
{
return(BadRequest($"Parameter type mismatch for '{methodParameters[i].Name}'."));
}
}
else if (methodParameters[i].IsOptional)
{
parameters.Add(Type.Missing);
}
else
{
return(BadRequest($"Parameter '{methodParameters[i].Name}' is required."));
}
}
object result;
try
{
result = action.Invoke(block, parameters.ToArray());
}
catch (TargetInvocationException ex)
{
ExceptionLogService.LogApiException(ex.InnerException, Request, GetPersonAlias());
result = new Rock.Blocks.BlockActionResult(HttpStatusCode.InternalServerError);
}
catch (Exception ex)
{
ExceptionLogService.LogApiException(ex, Request, GetPersonAlias());
result = new Rock.Blocks.BlockActionResult(HttpStatusCode.InternalServerError);
}
//
// Handle the result type.
//
if (result is IHttpActionResult)
{
return(( IHttpActionResult )result);
}
else if (result is Rock.Blocks.BlockActionResult actionResult)
{
if (actionResult.Error != null)
{
return(Content(actionResult.StatusCode, new HttpError(actionResult.Error)));
}
else if (actionResult.Content is HttpContent httpContent)
{
var response = Request.CreateResponse(actionResult.StatusCode);
response.Content = httpContent;
return(new System.Web.Http.Results.ResponseMessageResult(response));
}
else if (actionResult.ContentClrType != null)
{
var genericType = typeof(System.Web.Http.Results.NegotiatedContentResult <>).MakeGenericType(actionResult.ContentClrType);
return(( IHttpActionResult )Activator.CreateInstance(genericType, actionResult.StatusCode, actionResult.Content, this));
}
else
{
return(StatusCode(actionResult.StatusCode));
}
}
else if (action.ReturnType == typeof(void))
{
return(Ok());
}
else
{
return(Ok(result));
}
}