diff options
Diffstat (limited to 'Emby.Server.Implementations/Services/ServiceExec.cs')
| -rw-r--r-- | Emby.Server.Implementations/Services/ServiceExec.cs | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/Emby.Server.Implementations/Services/ServiceExec.cs b/Emby.Server.Implementations/Services/ServiceExec.cs deleted file mode 100644 index 9f5f97028..000000000 --- a/Emby.Server.Implementations/Services/ServiceExec.cs +++ /dev/null @@ -1,214 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Reflection; -using System.Threading.Tasks; -using MediaBrowser.Model.Services; - -namespace Emby.Server.Implementations.Services -{ - public static class ServiceExecExtensions - { - public static string[] AllVerbs = new[] { - "OPTIONS", "GET", "HEAD", "POST", "PUT", "DELETE", "TRACE", "CONNECT", // RFC 2616 - "PROPFIND", "PROPPATCH", "MKCOL", "COPY", "MOVE", "LOCK", "UNLOCK", // RFC 2518 - "VERSION-CONTROL", "REPORT", "CHECKOUT", "CHECKIN", "UNCHECKOUT", - "MKWORKSPACE", "UPDATE", "LABEL", "MERGE", "BASELINE-CONTROL", "MKACTIVITY", // RFC 3253 - "ORDERPATCH", // RFC 3648 - "ACL", // RFC 3744 - "PATCH", // https://datatracker.ietf.org/doc/draft-dusseault-http-patch/ - "SEARCH", // https://datatracker.ietf.org/doc/draft-reschke-webdav-search/ - "BCOPY", "BDELETE", "BMOVE", "BPROPFIND", "BPROPPATCH", "NOTIFY", - "POLL", "SUBSCRIBE", "UNSUBSCRIBE" - }; - - public static List<MethodInfo> GetActions(this Type serviceType) - { - var list = new List<MethodInfo>(); - - foreach (var mi in serviceType.GetRuntimeMethods()) - { - if (!mi.IsPublic) - { - continue; - } - - if (mi.IsStatic) - { - continue; - } - - if (mi.GetParameters().Length != 1) - continue; - - var actionName = mi.Name; - if (!AllVerbs.Contains(actionName, StringComparer.OrdinalIgnoreCase)) - continue; - - list.Add(mi); - } - - return list; - } - } - - internal static class ServiceExecGeneral - { - private static Dictionary<string, ServiceMethod> execMap = new Dictionary<string, ServiceMethod>(); - - public static void CreateServiceRunnersFor(Type requestType, List<ServiceMethod> actions) - { - foreach (var actionCtx in actions) - { - if (execMap.ContainsKey(actionCtx.Id)) continue; - - execMap[actionCtx.Id] = actionCtx; - } - } - - public static Task<object> Execute(Type serviceType, IRequest request, object instance, object requestDto, string requestName) - { - var actionName = request.Verb ?? "POST"; - - if (execMap.TryGetValue(ServiceMethod.Key(serviceType, actionName, requestName), out ServiceMethod actionContext)) - { - if (actionContext.RequestFilters != null) - { - foreach (var requestFilter in actionContext.RequestFilters) - { - requestFilter.RequestFilter(request, request.Response, requestDto); - if (request.Response.HasStarted) - { - Task.FromResult<object>(null); - } - } - } - - var response = actionContext.ServiceAction(instance, requestDto); - - if (response is Task taskResponse) - { - return GetTaskResult(taskResponse); - } - - return Task.FromResult(response); - } - - var expectedMethodName = actionName.Substring(0, 1) + actionName.Substring(1).ToLowerInvariant(); - throw new NotImplementedException(string.Format("Could not find method named {1}({0}) or Any({0}) on Service {2}", requestDto.GetType().GetMethodName(), expectedMethodName, serviceType.GetMethodName())); - } - - private static async Task<object> GetTaskResult(Task task) - { - try - { - if (task is Task<object> taskObject) - { - return await taskObject.ConfigureAwait(false); - } - - await task.ConfigureAwait(false); - - var type = task.GetType().GetTypeInfo(); - if (!type.IsGenericType) - { - return null; - } - - var resultProperty = type.GetDeclaredProperty("Result"); - if (resultProperty == null) - { - return null; - } - - var result = resultProperty.GetValue(task); - - // hack alert - if (result.GetType().Name.IndexOf("voidtaskresult", StringComparison.OrdinalIgnoreCase) != -1) - { - return null; - } - - return result; - } - catch (TypeAccessException) - { - return null; // return null for void Task's - } - } - - public static List<ServiceMethod> Reset(Type serviceType) - { - var actions = new List<ServiceMethod>(); - - foreach (var mi in serviceType.GetActions()) - { - var actionName = mi.Name; - var args = mi.GetParameters(); - - var requestType = args[0].ParameterType; - var actionCtx = new ServiceMethod - { - Id = ServiceMethod.Key(serviceType, actionName, requestType.GetMethodName()) - }; - - actionCtx.ServiceAction = CreateExecFn(serviceType, requestType, mi); - - var reqFilters = new List<IHasRequestFilter>(); - - foreach (var attr in mi.GetCustomAttributes(true)) - { - if (attr is IHasRequestFilter hasReqFilter) - { - reqFilters.Add(hasReqFilter); - } - } - - if (reqFilters.Count > 0) - { - actionCtx.RequestFilters = reqFilters.OrderBy(i => i.Priority).ToArray(); - } - - actions.Add(actionCtx); - } - - return actions; - } - - private static ActionInvokerFn CreateExecFn(Type serviceType, Type requestType, MethodInfo mi) - { - var serviceParam = Expression.Parameter(typeof(object), "serviceObj"); - var serviceStrong = Expression.Convert(serviceParam, serviceType); - - var requestDtoParam = Expression.Parameter(typeof(object), "requestDto"); - var requestDtoStrong = Expression.Convert(requestDtoParam, requestType); - - Expression callExecute = Expression.Call( - serviceStrong, mi, requestDtoStrong); - - if (mi.ReturnType != typeof(void)) - { - var executeFunc = Expression.Lambda<ActionInvokerFn>( - callExecute, - serviceParam, - requestDtoParam).Compile(); - - return executeFunc; - } - else - { - var executeFunc = Expression.Lambda<VoidActionInvokerFn>( - callExecute, - serviceParam, - requestDtoParam).Compile(); - - return (service, request) => - { - executeFunc(service, request); - return null; - }; - } - } - } -} |