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589 lines
21 KiB
589 lines
21 KiB
#if NETFX || NETCORE
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using Apewer;
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using Apewer.Network;
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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.IO;
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using System.Reflection;
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using System.Web;
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using Apewer.Models;
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#if NETCORE
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using Microsoft.AspNetCore.Http;
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#endif
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namespace Apewer.Web
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{
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internal static class ApiInternals
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{
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#region Fields
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private static Dictionary<string, ApiApplication> _entries = null;
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private static List<Assembly> _assemblies = null;
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#endregion
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#region Relection
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public static Dictionary<string, ApiApplication> Entries { get { return _entries; } set { _entries = value; } }
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public static List<Assembly> Assemblies { get { return _assemblies; } set { _assemblies = value; } }
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internal static Dictionary<string, ApiApplication> GetEntries(IEnumerable<Assembly> assemblies, bool sort = true)
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{
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var entries = new Dictionary<string, ApiApplication>();
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var deduplicates = new List<Assembly>();
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foreach (var assembly in assemblies)
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{
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if (assembly == null) continue;
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if (deduplicates.Contains(assembly)) continue;
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deduplicates.Add(assembly);
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}
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var aes = new ObjectSet<ApiApplication>();
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foreach (var assembly in deduplicates)
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{
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var types = ClassUtility.GetTypes(assembly);
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foreach (var type in types)
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{
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var application = GetApplication(type);
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if (application == null) continue;
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aes[application.Name] = application;
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var methods = type.GetMethods();
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var fes = new ObjectSet<ApiFunction>(true);
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foreach (var method in methods)
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{
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var function = GetFunction(application, method);
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if (function == null) continue;
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fes[function.Name] = function;
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}
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var fns = new List<string>();
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fns.AddRange(ClassUtility.GetOrigin(fes).Keys);
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if (sort) fns.Sort();
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foreach (var i in fns) application.Functions.Add(i, fes[i]);
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}
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}
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var ans = new List<string>();
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ans.AddRange(ClassUtility.GetOrigin(aes).Keys);
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if (sort) ans.Sort();
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foreach (var i in ans) entries.Add(i, aes[i]);
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return entries;
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}
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internal static ApiApplication GetApplication(Type type)
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{
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if (type == null) return null;
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// Check Type Properties
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if (!type.IsClass) return null;
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if (type.IsAbstract) return null;
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if (type.IsGenericType) return null;
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// Check Type ApiAttributes
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var attributes = type.GetCustomAttributes(typeof(ApiAttribute), false);
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if (attributes.Length < 1) return null;
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// Check Base
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if (!ClassUtility.IsInherits(type, typeof(ApiController))) return null;
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// Entry
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var entry = new ApiApplication();
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entry.Type = type;
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entry.Assembly = type.Assembly;
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// Name
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var api = (ApiAttribute)attributes[0];
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var name = api.Name;
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if (string.IsNullOrEmpty(name)) name = type.Name;
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name = name.ToLower();
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entry.Name = name;
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// Caption
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entry.Caption = api.Caption;
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if (entry.Caption.Length < 1)
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{
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var captions = type.GetCustomAttributes(typeof(CaptionAttribute), true);
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if (captions.Length > 0)
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{
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var caption = (CaptionAttribute)captions[0];
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entry.Caption = caption.Title;
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entry.Description = caption.Description;
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}
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}
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// Visible
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entry.Visible = api.Visible;
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if (entry.Visible)
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{
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if (type.ContainsAttribute<HiddenAttribute>(false))
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{
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entry.Visible = false;
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}
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}
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// Independent
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if (type.ContainsAttribute<IndependentAttribute>(false))
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{
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entry.Independent = true;
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}
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// Module
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entry.Module = TextUtility.Join("-", entry.Assembly.GetName().Name, entry.Assembly.GetName().Version.ToString());
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return entry;
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}
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internal static ApiFunction GetFunction(ApiApplication application, MethodInfo method)
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{
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if (method == null) return null;
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// 滤除构造函数。
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if (method.IsConstructor) return null;
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// 滤除继承的方法。
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if (method.DeclaringType.Equals(typeof(object))) return null;
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if (method.DeclaringType.Equals(typeof(ApiController))) return null;
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// 滤除带参数的方法。
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var parameters = method.GetParameters();
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if (parameters.Length > 0) return null;
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// Entry
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var entry = new ApiFunction();
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entry.Type = application.Type;
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entry.Assembly = application.Type.Assembly;
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entry.Method = method;
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entry.Name = method.Name.ToLower();
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// Caption
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var captions = method.GetCustomAttributes(typeof(CaptionAttribute), true);
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if (captions.Length > 0)
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{
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var caption = (CaptionAttribute)captions[0];
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entry.Caption = caption.Title;
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entry.Description = caption.Description;
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}
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// Visible
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entry.Visible = true;
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if (application.Visible)
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{
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var hidden = method.GetCustomAttributes(typeof(HiddenAttribute), false);
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if (hidden.Length > 0) entry.Visible = false;
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}
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else
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{
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entry.Visible = false;
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}
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// Returnable
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if (method.ReturnType.Equals(typeof(string)))
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{
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entry.Returnable = true;
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}
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return entry;
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}
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#endregion
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#region ApiRequest
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internal static StringPairs ParseUrlParameters
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#if NETFX
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(System.Web.HttpRequest request) => WebUtility.ParseParameters(request.Url.Query);
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#else
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(Microsoft.AspNetCore.Http.HttpRequest request)
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{
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var list = new StringPairs();
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foreach (var key in request.Query.Keys)
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{
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if (request != null)
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{
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list.Add(new KeyValuePair<string, string>(key, request.Query[key]));
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}
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}
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return list;
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}
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#endif
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#if NETFX
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internal static ApiRequest GetRequest(System.Web.HttpRequest request)
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#else
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internal static ApiRequest GetRequest(Microsoft.AspNetCore.Http.HttpRequest request)
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#endif
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{
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if (request == null) return null;
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if (string.IsNullOrEmpty(request.Path)) return null;
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var apiRequest = new ApiRequest();
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apiRequest.IP = WebUtility.GetClientIP(request, true);
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apiRequest.Url = WebUtility.GetUrl(request);
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apiRequest.Parameters = ParseUrlParameters(request);
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apiRequest.UserAgent = WebUtility.GetUserAgent(request);
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#if NETFX
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apiRequest.Referrer = request.UrlReferrer;
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#endif
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// 获取 Http Method。
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apiRequest.Method = WebUtility.GetMethod(request);
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// 准备变量。
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var application = null as string;
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var function = null as string;
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var random = null as string;
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var ticket = null as string;
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var session = null as string;
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var page = null as string;
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// 头。
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foreach (var kvp in WebUtility.GetHeaders(request))
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{
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apiRequest.Headers.Add(new KeyValuePair<string, string>(kvp.Key, kvp.Value));
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switch (TextUtility.ToLower(kvp.Key))
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{
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case "user-agent":
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apiRequest.UserAgent = kvp.Value;
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break;
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}
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}
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// 解析 POST 请求。
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if (apiRequest.Method == HttpMethod.POST)
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{
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#if NETFX
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var post = BinaryUtility.Read(request.InputStream);
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#else
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var post = BinaryUtility.Read(request.Body);
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#endif
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var text = TextUtility.FromBinary(post);
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var json = Json.Parse(text) ?? Json.NewObject();
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application = json["application"];
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function = json["function"];
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random = json["random"];
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ticket = json["ticket"];
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session = json["session"];
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page = json["page"];
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var data = json.GetProperty("data");
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apiRequest.PostData = post;
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apiRequest.PostText = text;
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apiRequest.PostJson = json;
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apiRequest.Data = data ?? Json.NewObject();
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}
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// 解析 URL 参数。
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// URL 参数的优先级应高于 URL 路径,以避免反向代理产生的路径问题。
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if (string.IsNullOrEmpty(application)) application = WebUtility.GetParameter(apiRequest.Parameters, "application");
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if (string.IsNullOrEmpty(function)) function = WebUtility.GetParameter(apiRequest.Parameters, "function");
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if (string.IsNullOrEmpty(random)) random = WebUtility.GetParameter(apiRequest.Parameters, "random");
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if (string.IsNullOrEmpty(ticket)) ticket = WebUtility.GetParameter(apiRequest.Parameters, "ticket");
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if (string.IsNullOrEmpty(session)) session = WebUtility.GetParameter(apiRequest.Parameters, "session");
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if (string.IsNullOrEmpty(page)) page = WebUtility.GetParameter(apiRequest.Parameters, "page");
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// 最后检查 URL 路径。
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var paths = request.Path.ToString().Split('/');
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if (string.IsNullOrEmpty(application) && paths.Length >= 2) application = TextUtility.DecodeUrl(paths[1]);
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if (string.IsNullOrEmpty(function) && paths.Length >= 3) function = TextUtility.DecodeUrl(paths[2]);
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// 修正内容。
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application = application.SafeLower().SafeTrim();
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function = function.SafeLower().SafeTrim();
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random = random.SafeLower().SafeTrim();
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ticket = ticket.SafeLower().SafeTrim();
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session = session.SafeLower().SafeTrim();
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page = page.SafeTrim();
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// 设置请求:回传。
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apiRequest.Application = application;
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apiRequest.Function = function;
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apiRequest.Random = random;
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// 设置请求:不回传。
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apiRequest.Ticket = ticket;
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apiRequest.Session = session;
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apiRequest.Page = page;
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// 返回结果。
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return apiRequest;
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}
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#endregion
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#region ApiResponse
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/// <summary>设置 status 为 error,并设置 message 的内容。</summary>
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internal static void RespondError(ApiResponse response, string message = "未知错误。")
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{
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if (response == null) return;
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response.Type = ApiFormat.Json;
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response.Status = "error";
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response.Message = message ?? TextUtility.EmptyString;
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}
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/// <summary>设置 status 为 error,并设置 message 的内容。</summary>
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internal static void RespondError(ApiResponse response, Exception exception)
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{
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if (response == null) return;
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response.Exception = exception;
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response.Type = ApiFormat.Json;
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response.Status = "error";
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try
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{
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response.Message = exception == null ? "无效异常。" : exception.Message;
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response.Data.Reset(Json.NewObject());
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response.Data["message"] = exception.Message;
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response.Data["helplink"] = exception.HelpLink;
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response.Data["source"] = exception.Source;
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response.Data["stacktrace"] = Json.Parse(exception.StackTrace.Split('\n'), true);
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}
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catch { }
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}
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/// <summary>输出 UTF-8 文本。</summary>
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internal static void RespondText(ApiResponse response, string content, string type = "text/plain")
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{
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if (response == null) return;
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response.Type = ApiFormat.Text;
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response.TextString = content;
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response.TextType = type ?? "text/plain";
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}
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/// <summary>输出字节数组。</summary>
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internal static void RespondBinary(ApiResponse response, byte[] content, string type = "application/octet-stream")
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{
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if (response == null) return;
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response.Type = ApiFormat.Binary;
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response.BinaryStream = null;
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response.BinaryBytes = content;
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response.BinaryType = type ?? "application/octet-stream";
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}
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/// <summary>输出二进制。</summary>
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internal static void RespondBinary(ApiResponse response, Stream content, string type = "application/octet-stream")
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{
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if (response == null) return;
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response.Type = ApiFormat.Binary;
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response.BinaryStream = content;
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response.BinaryBytes = null;
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response.BinaryType = type ?? "application/octet-stream";
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}
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/// <summary>输出文件。</summary>
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internal static void RespondFile(ApiResponse response, Stream stream, string name, string type = "application/octet-stream")
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{
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if (response == null) return;
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response.Type = ApiFormat.File;
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response.FileStream = stream;
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response.FileName = name;
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response.FileType = type ?? "application/octet-stream";
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}
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/// <summary>重定向。</summary>
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public static void RespondRedirect(ApiResponse response, string url)
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{
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if (response == null) return;
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response.Type = ApiFormat.Redirect;
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response.RedirectUrl = url;
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}
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internal static string ExportJson(ApiResponse response, bool indented = true, bool exception = false)
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{
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if (response == null) return "{}";
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var json = Json.NewObject();
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json.SetProperty("beginning", response.Beginning ?? TextUtility.EmptyString);
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json.SetProperty("ending", response.Ending ?? TextUtility.EmptyString);
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json.SetProperty("random", response.Random);
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json.SetProperty("application", response.Application);
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json.SetProperty("function", response.Function);
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json.SetProperty("status", (TextUtility.IsBlank(response.Status) ? TextUtility.EmptyString : response.Status.ToLower()));
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json.SetProperty("message", response.Message);
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if (exception)
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{
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if (response.Exception == null) json.SetProperty("exception");
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else
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{
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var exmessage = null as string;
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var exstacktrace = null as string;
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var exsource = null as string;
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var exhelplink = null as string;
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try
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{
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exmessage = response.Exception.Message;
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exstacktrace = response.Exception.StackTrace;
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exsource = response.Exception.Source;
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exhelplink = response.Exception.HelpLink;
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}
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catch { }
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var exjson = Json.NewObject();
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exjson.SetProperty("type", response.Exception.GetType().FullName);
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exjson.SetProperty("message", exmessage);
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exjson.SetProperty("stack", Json.Parse((exstacktrace ?? "").Replace("\r", "").Split('\n'), false));
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exjson.SetProperty("source", exsource);
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exjson.SetProperty("helplink", exhelplink);
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if (response.Exception is System.Net.WebException)
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{
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var webex = response.Exception as System.Net.WebException;
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{
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var array = Json.NewArray();
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foreach (var k in webex.Data.Keys)
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{
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var item = Json.NewObject();
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var v = webex.Data[k];
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item.SetProperty(k.ToString(), Json.Parse(v.ToString()));
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}
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exjson.SetProperty("data", array);
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}
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exjson.SetProperty("", Json.Parse(webex.Response, true));
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}
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json.SetProperty("exception", exjson);
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}
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}
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json.SetProperty("data", response.Data);
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var text = json.ToString(indented);
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return text;
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}
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#endregion
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#region HttpResponse
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public static void AddHeader
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#if NETFX
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(System.Web.HttpResponse response, string name, string value)
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{
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if (response == null || string.IsNullOrEmpty(name) || string.IsNullOrEmpty(value)) return;
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#if NET20
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try { response.AddHeader(name, value); } catch { }
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#else
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try { response.Headers.Add(name, value); } catch { }
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#endif
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}
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#else
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(Microsoft.AspNetCore.Http.HttpResponse response, string name, string value)
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{
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if (response == null || string.IsNullOrEmpty(name) || string.IsNullOrEmpty(value)) return;
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try { response.Headers.Add(name, value); } catch { }
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}
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#endif
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public static void AddHeaders
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#if NETFX
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(System.Web.HttpResponse response, NameValueCollection collection)
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{
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if (response == null || collection == null) return;
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foreach (var key in collection.AllKeys) AddHeader(response, key, collection[key]);
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}
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#else
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(Microsoft.AspNetCore.Http.HttpResponse response, NameValueCollection collection)
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{
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if (response == null) return;
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if (collection == null) return;
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foreach (var key in collection.AllKeys) AddHeader(response, key, collection[key]);
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}
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#endif
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public static void AddHeaders
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#if NETFX
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(System.Web.HttpResponse response, StringPairs headers)
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{
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if (response == null || headers == null) return;
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foreach (var key in headers.GetAllKeys())
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{
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var values = headers.GetValues(key);
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foreach (var value in values) AddHeader(response, key, value);
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}
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}
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#else
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(Microsoft.AspNetCore.Http.HttpResponse response, StringPairs headers)
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{
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if (response == null || headers == null) return;
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foreach (var key in headers.GetAllKeys())
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{
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var values = headers.GetValues(key);
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foreach (var value in values) AddHeader(response, key, value);
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}
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}
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#endif
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public static void SetTextPlain
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#if NETFX
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(System.Web.HttpResponse response, string value = null)
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{
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if (response == null) return;
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if (string.IsNullOrEmpty(value))
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{
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response.ContentType = "text/plain";
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response.Charset = "utf-8";
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}
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else
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{
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response.ContentType = value;
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}
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}
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#else
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(Microsoft.AspNetCore.Http.HttpResponse response, string value = null)
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{
|
|
if (response == null) return;
|
|
response.ContentType = string.IsNullOrEmpty(value) ? "text/plain; charset=utf-8" : value;
|
|
}
|
|
#endif
|
|
|
|
public static void SetContentLength
|
|
#if NETFX
|
|
(System.Web.HttpResponse response, long value)
|
|
{
|
|
if (response == null) return;
|
|
if (value < 0L) return;
|
|
response.AddHeader("Content-Length", value.ToString());
|
|
}
|
|
#else
|
|
(Microsoft.AspNetCore.Http.HttpResponse response, long value)
|
|
{
|
|
if (response == null) return;
|
|
if (value < 0L) return;
|
|
response.ContentLength = value;
|
|
}
|
|
|
|
#endif
|
|
|
|
public static Stream GetStream
|
|
#if NETFX
|
|
(System.Web.HttpResponse response)
|
|
{
|
|
if (response == null) return null;
|
|
return response.OutputStream;
|
|
}
|
|
#else
|
|
(Microsoft.AspNetCore.Http.HttpResponse response)
|
|
{
|
|
if (response == null) return null;
|
|
return response.Body;
|
|
}
|
|
#endif
|
|
|
|
#endregion
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|