文件补齐

composer.json

@@ -3,7 +3,9 @@
     "type": "library",
     "description": "json rpc server/client.",
     "require": {
-        "guzzlehttp/guzzle": "^6.3"
+        "guzzlehttp/guzzle": "^6.3",
+        "illuminate/support": "^5.7",
+        "illuminate/http": "^5.7"
     },
     "autoload": {
         "psr-4": {

src/Providers/LumenServerServiceProvider.php

@@ -0,0 +1,49 @@
+<?php
+namespace JsonRpc\Providers;
+
+use Illuminate\Support\ServiceProvider;
+use JsonRpc\Server\JsonRpcServer;
+use Laravel\Lumen\Application;
+
+class LumenServerServiceProvider extends ServiceProvider
+{
+
+    /**
+     * @var Application
+     */
+    protected $app;
+
+    /**
+     * @var JsonRpcServer
+     */
+    protected $server;
+
+    public function boot()
+    {
+        $this->app->router->group([
+//            'middleware' => 'rpc',
+        ], function () {
+
+            $callback = function () {
+                $server = new JsonRpcServer();
+                return $server->handler();
+            };
+
+            $this->app->router->post('rpc/gateway.json', $callback);
+            $this->app->router->get('rpc/gateway.json', $callback);
+            $this->app->router->get('rpc/doc.html', function () {
+                $doc = new JsonRpcDoc(base_path('app/Rpc/'));
+                return $doc->render();
+            });
+        });
+    }
+
+    /**
+     * Register any application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+    }
+}

src/Server/JsonRpcMethod.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace JsonRpc\Server;
+
+class JsonRpcMethod
+{
+    protected $id;
+    protected $request;
+
+    final public function __construct($id, $request)
+    {
+        $this->id = $id;
+        $this->request = $request;
+    }
+
+    public function response($result)
+    {
+        return JsonResponse::create([
+            'jsonrpc' => '2.0',
+            'result' => $result,
+            'id' => $this->id
+        ]);
+    }
+
+    public function error($code, $msg)
+    {
+        return JsonResponse::create([
+            'jsonrpc' => '2.0',
+            'error' => [
+                'code' => $code,
+                'message' => $msg,
+            ],
+            'id' => $this->id
+        ]);
+    }
+
+}

src/Server/JsonRpcServer.php

@@ -0,0 +1,122 @@
+<?php
+
+namespace JsonRpc\Server;
+
+
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class JsonRpcServer
+{
+    const Rpc_Error_Parse_Error = -32700;
+    const Rpc_Error_Invalid_Request = -32600;
+    const Rpc_Error_NOT_FOUND = -32601;
+    const Rpc_Error_Invalid_Params = -32602;
+    const Rpc_Error_Internal_Error = -32603;
+
+
+    const ErrorMsg = [
+        self::Rpc_Error_NOT_FOUND => 'Method not found',
+        self::Rpc_Error_Parse_Error => 'Json parse error',
+        self::Rpc_Error_Invalid_Request => 'Invalid request',
+        self::Rpc_Error_Invalid_Params => 'Invalid params',
+    ];
+
+    /**
+     * @var Request
+     */
+    public $request;
+
+    public function __construct($config)
+    {
+        $this->request = function_exists('app') ? app('request') : Request::capture();
+    }
+
+    public function handler()
+    {
+        if ($this->request->getContentType() != 'json') {
+            return $this->error(self::Rpc_Error_Invalid_Request);
+        }
+
+        try {
+            list($method, $params, $id) = $this->parseJson($this->request->getContent());
+            list($class, $function) = $this->parseMethod($method);
+
+            if (!class_exists($class) || !method_exists($class, $function)) {
+                return $this->error(self::Rpc_Error_NOT_FOUND);
+            }
+
+            if (!$this->isEnoughParameter($class, $function, $params)) {
+                return $this->error(self::Rpc_Error_Invalid_Params);
+            }
+
+
+            $ret = call_user_func_array([(new $class($id, $this->request)), $function], $params);
+            return $ret;
+
+        } catch (\InvalidArgumentException $e) {
+            return $this->error(self::Rpc_Error_Parse_Error);
+        }
+    }
+
+    protected function parseJson($data)
+    {
+        $data = \GuzzleHttp\json_decode($data, true);
+        $method = $data['method'];
+        $params = $data['params'];
+        $id = $data['id'];
+        return [$method, $params, $id];
+    }
+
+    protected function parseMethod($method)
+    {
+        $method = explode('.', $method);
+
+        if (count($method) < 2) {
+            return ['', ''];
+        }
+
+        $function = array_pop($method);
+        $class = 'Rpc' . ucwords(array_pop($method));
+
+        foreach ($method as $one) {
+            $class = ucwords($one) . '\\' . $class;
+        }
+
+        $class = "App\Rpc\\$class";
+        return [$class, $function];
+    }
+
+
+    protected function isEnoughParameter($class, $method, $parameters)
+    {
+        $r = new \ReflectionMethod($class, $method);
+        $params = $r->getParameters();
+        $n = 0;
+        foreach ($params as $param) {
+            //$param is an instance of ReflectionParameter
+            if (!$param->isOptional()) {
+                $n++;
+            }
+        }
+        return count($parameters) >= $n;
+    }
+
+    protected function error($code, $msg = null, $id = null)
+    {
+        if ($msg === null) {
+            $msg = isset(self::ErrorMsg[$code]) ? self::ErrorMsg[$code] : 'undefined';
+        }
+
+        return JsonResponse::create([
+            'jsonrpc' => '2.0',
+            'error' => [
+                'code' => $code,
+                'message' => $msg,
+            ],
+            'id' => $id
+        ]);
+    }
+
+
+}

src/Server/JsonRpcServerDoc.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace JsonRpc\Server;
+
+class JsonRpcDoc
+{
+
+    protected $methods = [];
+
+    public function __construct($dir)
+    {
+        $this->methods = include $dir . '/methods.php';
+    }
+
+    public function methods()
+    {
+        return $this->methods;
+    }
+
+    public function render()
+    {
+        return view('doc', ['doc' => $this]);
+    }
+
+}