100 lines
3.6 KiB
C#
100 lines
3.6 KiB
C#
using System;
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using System.Text.Json;
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using System.Threading.Tasks;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Linq;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Cors;
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using LeanCloud.Storage;
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using LeanCloud.Storage.Internal.Codec;
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namespace LeanCloud.Engine {
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[ApiController]
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[Route("{1,1.1}")]
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[EnableCors(LCEngine.LCEngineCORS)]
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public class LCFunctionController : ControllerBase {
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private Dictionary<string, MethodInfo> Functions => LCEngine.Functions;
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[HttpGet("functions/_ops/metadatas")]
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public object GetFunctions() {
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try {
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return LCEngine.GetFunctions(Request);
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} catch (Exception e) {
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return StatusCode(500, e.Message);
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}
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}
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[HttpPost("functions/{funcName}")]
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public async Task<object> Run(string funcName, JsonElement body) {
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try {
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LCLogger.Debug($"Run: {funcName}");
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LCLogger.Debug(body.ToString());
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if (Functions.TryGetValue(funcName, out MethodInfo mi)) {
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LCEngine.InitRequestContext(Request);
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object[] ps = ParseParameters(mi, body);
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object result = await LCEngine.Invoke(mi, ps.ToArray());
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if (result != null) {
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return new Dictionary<string, object> {
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{ "result", result }
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};
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}
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}
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return body;
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} catch (Exception e) {
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return StatusCode(500, e.Message);
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}
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}
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[HttpPost("call/{funcName}")]
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public async Task<object> RPC(string funcName, JsonElement body) {
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try {
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LCLogger.Debug($"RPC: {funcName}");
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LCLogger.Debug(body.ToString());
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if (Functions.TryGetValue(funcName, out MethodInfo mi)) {
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LCEngine.InitRequestContext(Request);
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object[] ps = ParseParameters(mi, body);
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object result = await LCEngine.Invoke(mi, ps);
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if (result != null) {
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return new Dictionary<string, object> {
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{ "result", LCCloud.Encode(result) }
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};
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}
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}
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return body;
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} catch (Exception e) {
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return StatusCode(500, e.Message);
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}
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}
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private static object[] ParseParameters(MethodInfo mi, JsonElement body) {
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Dictionary<string, object> parameters = LCEngine.Decode(body);
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List<object> ps = new List<object>();
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if (mi.GetParameters().Length > 0) {
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if (Array.Exists(mi.GetParameters(),
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p => p.GetCustomAttribute<LCEngineFunctionParamAttribute>() != null)) {
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// 如果包含 LCEngineFunctionParamAttribute 的参数，则按照配对方式传递参数
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foreach (ParameterInfo pi in mi.GetParameters()) {
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LCEngineFunctionParamAttribute attr = pi.GetCustomAttribute<LCEngineFunctionParamAttribute>();
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if (attr != null) {
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string paramName = attr.ParamName;
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ps.Add(parameters[paramName]);
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}
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}
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} else {
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ps.Add(LCDecoder.Decode(LCEngine.Decode(body)));
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}
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}
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return ps.ToArray();
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}
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}
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}
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