Include composer dependencies in repo

vendor/fguillot/json-rpc/src/JsonRPC/Client.php

@@ -0,0 +1,194 @@
+<?php
+
+namespace JsonRPC;
+
+use Exception;
+use JsonRPC\Request\RequestBuilder;
+use JsonRPC\Response\ResponseParser;
+
+/**
+ * JsonRPC client class
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class Client
+{
+    /**
+     * If the only argument passed to a function is an array
+     * assume it contains named arguments
+     *
+     * @access private
+     * @var boolean
+     */
+    private $isNamedArguments = true;
+
+    /**
+     * Do not immediately throw an exception on error. Return it instead.
+     *
+     * @access public
+     * @var boolean
+     */
+    private $returnException = false;
+
+    /**
+     * True for a batch request
+     *
+     * @access private
+     * @var boolean
+     */
+    private $isBatch = false;
+
+    /**
+     * Batch payload
+     *
+     * @access private
+     * @var array
+     */
+    private $batch = array();
+
+    /**
+     * Http Client
+     *
+     * @access private
+     * @var HttpClient
+     */
+    private $httpClient;
+
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param  string      $url               Server URL
+     * @param  bool        $returnException   Return exceptions
+     * @param  HttpClient  $httpClient        HTTP client object
+     */
+    public function __construct($url = '', $returnException = false, HttpClient $httpClient = null)
+    {
+        $this->httpClient = $httpClient ?: new HttpClient($url);
+        $this->returnException = $returnException;
+    }
+
+    /**
+     * Arguments passed are always positional
+     *
+     * @access public
+     * @return $this
+     */
+    public function withPositionalArguments()
+    {
+        $this->isNamedArguments = false;
+        return $this;
+    }
+
+    /**
+     * Get HTTP Client
+     *
+     * @access public
+     * @return HttpClient
+     */
+    public function getHttpClient()
+    {
+        return $this->httpClient;
+    }
+
+    /**
+     * Set username and password
+     *
+     * @access public
+     * @param  string $username
+     * @param  string $password
+     * @return $this
+     */
+    public function authentication($username, $password)
+    {
+        $this->httpClient
+            ->withUsername($username)
+            ->withPassword($password);
+
+        return $this;
+    }
+
+    /**
+     * Automatic mapping of procedures
+     *
+     * @access public
+     * @param  string   $method   Procedure name
+     * @param  array    $params   Procedure arguments
+     * @return mixed
+     */
+    public function __call($method, array $params)
+    {
+        if ($this->isNamedArguments && count($params) === 1 && is_array($params[0])) {
+            $params = $params[0];
+        }
+
+        return $this->execute($method, $params);
+    }
+
+    /**
+     * Start a batch request
+     *
+     * @access public
+     * @return Client
+     */
+    public function batch()
+    {
+        $this->isBatch = true;
+        $this->batch = array();
+        return $this;
+    }
+
+    /**
+     * Send a batch request
+     *
+     * @access public
+     * @return array
+     */
+    public function send()
+    {
+        $this->isBatch = false;
+        return $this->sendPayload('['.implode(', ', $this->batch).']');
+    }
+
+    /**
+     * Execute a procedure
+     *
+     * @access public
+     * @param  string $procedure Procedure name
+     * @param  array  $params    Procedure arguments
+     * @param  array  $reqattrs
+     * @return mixed
+     */
+    public function execute($procedure, array $params = array(), array $reqattrs = array())
+    {
+        $payload = RequestBuilder::create()
+            ->withProcedure($procedure)
+            ->withParams($params)
+            ->withRequestAttributes($reqattrs)
+            ->build();
+
+        if ($this->isBatch) {
+            $this->batch[] = $payload;
+            return $this;
+        }
+
+        return $this->sendPayload($payload);
+    }
+
+    /**
+     * Send payload
+     *
+     * @access private
+     * @throws Exception
+     * @param  string $payload
+     * @return Exception|Client
+     */
+    private function sendPayload($payload)
+    {
+        return ResponseParser::create()
+            ->withReturnException($this->returnException)
+            ->withPayload($this->httpClient->execute($payload))
+            ->parse();
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/AccessDeniedException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class AccessDeniedException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class AccessDeniedException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/AuthenticationFailureException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class AuthenticationFailureException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class AuthenticationFailureException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/ConnectionFailureException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class ConnectionFailureException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class ConnectionFailureException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/InvalidJsonFormatException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class InvalidJsonFormatException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class InvalidJsonFormatException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/InvalidJsonRpcFormatException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class InvalidJsonRpcFormatException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class InvalidJsonRpcFormatException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/ResponseEncodingFailureException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class ResponseEncodingFailureException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class ResponseEncodingFailureException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/ResponseException.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class ResponseException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class ResponseException extends Exception
+{
+    /**
+     * A value that contains additional information about the error.
+     *
+     * @access protected
+     * @link http://www.jsonrpc.org/specification#error_object
+     * @var mixed
+     */
+    protected $data;
+
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param string    $message  [optional] The Exception message to throw.
+     * @param int       $code     [optional] The Exception code.
+     * @param Exception $previous [optional] The previous exception used for the exception chaining. Since 5.3.0
+     * @param mixed     $data     [optional] A value that contains additional information about the error.
+     */
+    public function __construct($message = '', $code = 0, Exception $previous = null, $data = null)
+    {
+        parent::__construct($message, $code, $previous);
+        $this->setData($data);
+    }
+
+    /**
+     * Attach additional information
+     *
+     * @access public
+     * @param mixed $data [optional] A value that contains additional information about the error.
+     * @return \JsonRPC\Exception\ResponseException
+     */
+    public function setData($data = null)
+    {
+        $this->data = $data;
+        return $this;
+    }
+
+    /**
+     * Get additional information
+     *
+     * @access public
+     * @return mixed|null
+     */
+    public function getData()
+    {
+        return $this->data;
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Exception/ServerErrorException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace JsonRPC\Exception;
+
+use Exception;
+
+/**
+ * Class ServerErrorException
+ *
+ * @package JsonRPC\Exception
+ * @author  Frederic Guillot
+ */
+class ServerErrorException extends Exception
+{
+}

vendor/fguillot/json-rpc/src/JsonRPC/HttpClient.php

@@ -0,0 +1,365 @@
+<?php
+
+namespace JsonRPC;
+
+use Closure;
+use JsonRPC\Exception\AccessDeniedException;
+use JsonRPC\Exception\ConnectionFailureException;
+use JsonRPC\Exception\ServerErrorException;
+
+/**
+ * Class HttpClient
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class HttpClient
+{
+    /**
+     * URL of the server
+     *
+     * @access private
+     * @var string
+     */
+    private $url;
+
+    /**
+     * HTTP client timeout
+     *
+     * @access private
+     * @var integer
+     */
+    private $timeout = 5;
+
+    /**
+     * Default HTTP headers to send to the server
+     *
+     * @access private
+     * @var array
+     */
+    private $headers = array(
+        'User-Agent: JSON-RPC PHP Client <https://github.com/fguillot/JsonRPC>',
+        'Content-Type: application/json',
+        'Accept: application/json',
+        'Connection: close',
+    );
+
+    /**
+     * Username for authentication
+     *
+     * @access private
+     * @var string
+     */
+    private $username;
+
+    /**
+     * Password for authentication
+     *
+     * @access private
+     * @var string
+     */
+    private $password;
+
+    /**
+     * Enable debug output to the php error log
+     *
+     * @access private
+     * @var boolean
+     */
+    private $debug = false;
+
+    /**
+     * Cookies
+     *
+     * @access private
+     * @var array
+     */
+    private $cookies = array();
+
+    /**
+     * SSL certificates verification
+     *
+     * @access private
+     * @var boolean
+     */
+    private $verifySslCertificate = true;
+
+    /**
+     * Callback called before the doing the request
+     *
+     * @access private
+     * @var Closure
+     */
+    private $beforeRequest;
+
+    /**
+     * HttpClient constructor
+     *
+     * @access public
+     * @param  string $url
+     */
+    public function __construct($url = '')
+    {
+        $this->url = $url;
+    }
+
+    /**
+     * Set URL
+     *
+     * @access public
+     * @param  string $url
+     * @return $this
+     */
+    public function withUrl($url)
+    {
+        $this->url = $url;
+        return $this;
+    }
+
+    /**
+     * Set username
+     *
+     * @access public
+     * @param  string $username
+     * @return $this
+     */
+    public function withUsername($username)
+    {
+        $this->username = $username;
+        return $this;
+    }
+
+    /**
+     * Set password
+     *
+     * @access public
+     * @param  string $password
+     * @return $this
+     */
+    public function withPassword($password)
+    {
+        $this->password = $password;
+        return $this;
+    }
+
+    /**
+     * Set timeout
+     *
+     * @access public
+     * @param  integer $timeout
+     * @return $this
+     */
+    public function withTimeout($timeout)
+    {
+        $this->timeout = $timeout;
+        return $this;
+    }
+
+    /**
+     * Set timeout
+     *
+     * @access public
+     * @param  array $headers
+     * @return $this
+     */
+    public function withHeaders(array $headers)
+    {
+        $this->headers = array_merge($this->headers, $headers);
+        return $this;
+    }
+
+    /**
+     * Set cookies
+     *
+     * @access public
+     * @param  array     $cookies
+     * @param  boolean   $replace
+     */
+    public function withCookies(array $cookies, $replace = false)
+    {
+        if ($replace) {
+            $this->cookies = $cookies;
+        } else {
+            $this->cookies = array_merge($this->cookies, $cookies);
+        }
+    }
+
+    /**
+     * Enable debug mode
+     *
+     * @access public
+     * @return $this
+     */
+    public function withDebug()
+    {
+        $this->debug = true;
+        return $this;
+    }
+
+    /**
+     * Disable SSL verification
+     *
+     * @access public
+     * @return $this
+     */
+    public function withoutSslVerification()
+    {
+        $this->verifySslCertificate = false;
+        return $this;
+    }
+
+    /**
+     * Assign a callback before the request
+     *
+     * @access public
+     * @param  Closure $closure
+     * @return $this
+     */
+    public function withBeforeRequestCallback(Closure $closure)
+    {
+        $this->beforeRequest = $closure;
+        return $this;
+    }
+
+    /**
+     * Get cookies
+     *
+     * @access public
+     * @return array
+     */
+    public function getCookies()
+    {
+        return $this->cookies;
+    }
+
+    /**
+     * Do the HTTP request
+     *
+     * @access public
+     * @throws ConnectionFailureException
+     * @param  string $payload
+     * @return array
+     */
+    public function execute($payload)
+    {
+        if (is_callable($this->beforeRequest)) {
+            call_user_func_array($this->beforeRequest, array($this, $payload));
+        }
+
+        $stream = fopen(trim($this->url), 'r', false, $this->buildContext($payload));
+
+        if (! is_resource($stream)) {
+            throw new ConnectionFailureException('Unable to establish a connection');
+        }
+
+        $metadata = stream_get_meta_data($stream);
+        $headers = $metadata['wrapper_data'];
+        $response = json_decode(stream_get_contents($stream), true);
+
+        if ($this->debug) {
+            error_log('==> Request: '.PHP_EOL.(is_string($payload) ? $payload : json_encode($payload, JSON_PRETTY_PRINT)));
+            error_log('==> Headers: '.PHP_EOL.var_export($headers, true));
+            error_log('==> Response: '.PHP_EOL.json_encode($response, JSON_PRETTY_PRINT));
+        }
+
+        $this->handleExceptions($headers);
+        $this->parseCookies($headers);
+
+        return $response;
+    }
+
+    /**
+     * Prepare stream context
+     *
+     * @access private
+     * @param  string   $payload
+     * @return resource
+     */
+    private function buildContext($payload)
+    {
+        $headers = $this->headers;
+
+        if (! empty($this->username) && ! empty($this->password)) {
+            $headers[] = 'Authorization: Basic '.base64_encode($this->username.':'.$this->password);
+        }
+
+        if (! empty($this->cookies)){
+            $cookies = array();
+
+            foreach ($this->cookies as $key => $value) {
+                $cookies[] = $key.'='.$value;
+            }
+
+            $headers[] = 'Cookie: '.implode('; ', $cookies);
+        }
+
+        return stream_context_create(array(
+            'http' => array(
+                'method' => 'POST',
+                'protocol_version' => 1.1,
+                'timeout' => $this->timeout,
+                'max_redirects' => 2,
+                'header' => implode("\r\n", $headers),
+                'content' => $payload,
+                'ignore_errors' => true,
+            ),
+            'ssl' => array(
+                'verify_peer' => $this->verifySslCertificate,
+                'verify_peer_name' => $this->verifySslCertificate,
+            )
+        ));
+    }
+
+    /**
+     * Parse cookies from response
+     *
+     * @access private
+     * @param  array $headers
+     */
+    private function parseCookies(array $headers)
+    {
+        foreach ($headers as $header) {
+            $pos = stripos($header, 'Set-Cookie:');
+
+            if ($pos !== false) {
+                $cookies = explode(';', substr($header, $pos + 11));
+
+                foreach ($cookies as $cookie) {
+                    $item = explode('=', $cookie);
+
+                    if (count($item) === 2) {
+                        $name = trim($item[0]);
+                        $value = $item[1];
+                        $this->cookies[$name] = $value;
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Throw an exception according the HTTP response
+     *
+     * @access public
+     * @param  array   $headers
+     * @throws AccessDeniedException
+     * @throws ServerErrorException
+     */
+    public function handleExceptions(array $headers)
+    {
+        $exceptions = array(
+            '401' => '\JsonRPC\Exception\AccessDeniedException',
+            '403' => '\JsonRPC\Exception\AccessDeniedException',
+            '404' => '\JsonRPC\Exception\ConnectionFailureException',
+            '500' => '\JsonRPC\Exception\ServerErrorException',
+        );
+
+        foreach ($headers as $header) {
+            foreach ($exceptions as $code => $exception) {
+                if (strpos($header, 'HTTP/1.0 '.$code) !== false || strpos($header, 'HTTP/1.1 '.$code) !== false) {
+                    throw new $exception('Response: '.$header);
+                }
+            }
+        }
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/MiddlewareHandler.php

@@ -0,0 +1,114 @@
+<?php
+
+namespace JsonRPC;
+
+/**
+ * Class MiddlewareHandler
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class MiddlewareHandler
+{
+    /**
+     * Procedure Name
+     *
+     * @access protected
+     * @var string
+     */
+    protected $procedureName = '';
+
+    /**
+     * Username
+     *
+     * @access protected
+     * @var string
+     */
+    protected $username = '';
+
+    /**
+     * Password
+     *
+     * @access protected
+     * @var string
+     */
+    protected $password = '';
+
+    /**
+     * List of middleware to execute before to call the method
+     *
+     * @access protected
+     * @var MiddlewareInterface[]
+     */
+    protected $middleware = array();
+
+    /**
+     * Set username
+     *
+     * @access public
+     * @param  string $username
+     * @return $this
+     */
+    public function withUsername($username)
+    {
+        if (! empty($username)) {
+            $this->username = $username;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Set password
+     *
+     * @access public
+     * @param  string $password
+     * @return $this
+     */
+    public function withPassword($password)
+    {
+        if (! empty($password)) {
+            $this->password = $password;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Set procedure name
+     *
+     * @access public
+     * @param  string $procedureName
+     * @return $this
+     */
+    public function withProcedure($procedureName)
+    {
+        $this->procedureName = $procedureName;
+        return $this;
+    }
+
+    /**
+     * Add a new middleware
+     *
+     * @access public
+     * @param  MiddlewareInterface $middleware
+     * @return MiddlewareHandler
+     */
+    public function withMiddleware(MiddlewareInterface $middleware)
+    {
+        $this->middleware[] = $middleware;
+        return $this;
+    }
+
+    /**
+     * Execute all middleware
+     *
+     * @access public
+     */
+    public function execute()
+    {
+        foreach ($this->middleware as $middleware) {
+            $middleware->execute($this->username, $this->password, $this->procedureName);
+        }
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/MiddlewareInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace JsonRPC;
+
+use JsonRPC\Exception\AccessDeniedException;
+use JsonRPC\Exception\AuthenticationFailureException;
+
+/**
+ * Interface MiddlewareInterface
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+interface MiddlewareInterface
+{
+    /**
+     * Execute Middleware
+     *
+     * @access public
+     * @param  string $username
+     * @param  string $password
+     * @param  string $procedureName
+     * @throws AccessDeniedException
+     * @throws AuthenticationFailureException
+     */
+    public function execute($username, $password, $procedureName);
+}

vendor/fguillot/json-rpc/src/JsonRPC/ProcedureHandler.php

@@ -0,0 +1,264 @@
+<?php
+
+namespace JsonRPC;
+
+use BadFunctionCallException;
+use Closure;
+use InvalidArgumentException;
+use ReflectionFunction;
+use ReflectionMethod;
+
+/**
+ * Class ProcedureHandler
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class ProcedureHandler
+{
+    /**
+     * List of procedures
+     *
+     * @access protected
+     * @var array
+     */
+    protected $callbacks = array();
+
+    /**
+     * List of classes
+     *
+     * @access protected
+     * @var array
+     */
+    protected $classes = array();
+
+    /**
+     * List of instances
+     *
+     * @access protected
+     * @var array
+     */
+    protected $instances = array();
+
+    /**
+     * Before method name to call
+     *
+     * @access protected
+     * @var string
+     */
+    protected $beforeMethodName = '';
+
+    /**
+     * Register a new procedure
+     *
+     * @access public
+     * @param  string   $procedure       Procedure name
+     * @param  closure  $callback        Callback
+     * @return $this
+     */
+    public function withCallback($procedure, Closure $callback)
+    {
+        $this->callbacks[$procedure] = $callback;
+        return $this;
+    }
+
+    /**
+     * Bind a procedure to a class
+     *
+     * @access public
+     * @param  string   $procedure    Procedure name
+     * @param  mixed    $class        Class name or instance
+     * @param  string   $method       Procedure name
+     * @return $this
+     */
+    public function withClassAndMethod($procedure, $class, $method = '')
+    {
+        if ($method === '') {
+            $method = $procedure;
+        }
+
+        $this->classes[$procedure] = array($class, $method);
+        return $this;
+    }
+
+    /**
+     * Bind a class instance
+     *
+     * @access public
+     * @param  mixed   $instance
+     * @return $this
+     */
+    public function withObject($instance)
+    {
+        $this->instances[] = $instance;
+        return $this;
+    }
+
+    /**
+     * Set a before method to call
+     *
+     * @access public
+     * @param  string $methodName
+     * @return $this
+     */
+    public function withBeforeMethod($methodName)
+    {
+        $this->beforeMethodName = $methodName;
+        return $this;
+    }
+
+    /**
+     * Execute the procedure
+     *
+     * @access public
+     * @param  string   $procedure    Procedure name
+     * @param  array    $params       Procedure params
+     * @return mixed
+     */
+    public function executeProcedure($procedure, array $params = array())
+    {
+        if (isset($this->callbacks[$procedure])) {
+            return $this->executeCallback($this->callbacks[$procedure], $params);
+        } elseif (isset($this->classes[$procedure]) && method_exists($this->classes[$procedure][0], $this->classes[$procedure][1])) {
+            return $this->executeMethod($this->classes[$procedure][0], $this->classes[$procedure][1], $params);
+        }
+
+        foreach ($this->instances as $instance) {
+            if (method_exists($instance, $procedure)) {
+                return $this->executeMethod($instance, $procedure, $params);
+            }
+        }
+
+        throw new BadFunctionCallException('Unable to find the procedure');
+    }
+
+    /**
+     * Execute a callback
+     *
+     * @access public
+     * @param  Closure   $callback     Callback
+     * @param  array     $params       Procedure params
+     * @return mixed
+     */
+    public function executeCallback(Closure $callback, $params)
+    {
+        $reflection = new ReflectionFunction($callback);
+
+        $arguments = $this->getArguments(
+            $params,
+            $reflection->getParameters(),
+            $reflection->getNumberOfRequiredParameters(),
+            $reflection->getNumberOfParameters()
+        );
+
+        return $reflection->invokeArgs($arguments);
+    }
+
+    /**
+     * Execute a method
+     *
+     * @access public
+     * @param  mixed     $class        Class name or instance
+     * @param  string    $method       Method name
+     * @param  array     $params       Procedure params
+     * @return mixed
+     */
+    public function executeMethod($class, $method, $params)
+    {
+        $instance = is_string($class) ? new $class : $class;
+        $reflection = new ReflectionMethod($class, $method);
+
+        $this->executeBeforeMethod($instance, $method);
+
+        $arguments = $this->getArguments(
+            $params,
+            $reflection->getParameters(),
+            $reflection->getNumberOfRequiredParameters(),
+            $reflection->getNumberOfParameters()
+        );
+
+        return $reflection->invokeArgs($instance, $arguments);
+    }
+
+    /**
+     * Execute before method if defined
+     *
+     * @access public
+     * @param  mixed  $object
+     * @param  string $method
+     */
+    public function executeBeforeMethod($object, $method)
+    {
+        if ($this->beforeMethodName !== '' && method_exists($object, $this->beforeMethodName)) {
+            call_user_func_array(array($object, $this->beforeMethodName), array($method));
+        }
+    }
+
+    /**
+     * Get procedure arguments
+     *
+     * @access public
+     * @param  array   $requestParams    Incoming arguments
+     * @param  array   $methodParams     Procedure arguments
+     * @param  integer $nbRequiredParams Number of required parameters
+     * @param  integer $nbMaxParams      Maximum number of parameters
+     * @return array
+     */
+    public function getArguments(array $requestParams, array $methodParams, $nbRequiredParams, $nbMaxParams)
+    {
+        $nbParams = count($requestParams);
+
+        if ($nbParams < $nbRequiredParams) {
+            throw new InvalidArgumentException('Wrong number of arguments');
+        }
+
+        if ($nbParams > $nbMaxParams) {
+            throw new InvalidArgumentException('Too many arguments');
+        }
+
+        if ($this->isPositionalArguments($requestParams)) {
+            return $requestParams;
+        }
+
+        return $this->getNamedArguments($requestParams, $methodParams);
+    }
+
+    /**
+     * Return true if we have positional parameters
+     *
+     * @access public
+     * @param  array    $request_params      Incoming arguments
+     * @return bool
+     */
+    public function isPositionalArguments(array $request_params)
+    {
+        return array_keys($request_params) === range(0, count($request_params) - 1);
+    }
+
+    /**
+     * Get named arguments
+     *
+     * @access public
+     * @param  array $requestParams Incoming arguments
+     * @param  array $methodParams  Procedure arguments
+     * @return array
+     */
+    public function getNamedArguments(array $requestParams, array $methodParams)
+    {
+        $params = array();
+
+        foreach ($methodParams as $p) {
+            $name = $p->getName();
+
+            if (isset($requestParams[$name])) {
+                $params[$name] = $requestParams[$name];
+            } elseif ($p->isDefaultValueAvailable()) {
+                $params[$name] = $p->getDefaultValue();
+            } else {
+                throw new InvalidArgumentException('Missing argument: '.$name);
+            }
+        }
+
+        return $params;
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Request/BatchRequestParser.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace JsonRPC\Request;
+
+/**
+ * Class BatchRequestParser
+ *
+ * @package JsonRPC\Request
+ * @author  Frederic Guillot
+ */
+class BatchRequestParser extends RequestParser
+{
+    /**
+     * Parse incoming request
+     *
+     * @access public
+     * @return string
+     */
+    public function parse()
+    {
+        $responses = array();
+
+        foreach ($this->payload as $payload) {
+            $responses[] = RequestParser::create()
+                ->withPayload($payload)
+                ->withProcedureHandler($this->procedureHandler)
+                ->withMiddlewareHandler($this->middlewareHandler)
+                ->withLocalException($this->localExceptions)
+                ->parse();
+        }
+
+        $responses = array_filter($responses);
+        return empty($responses) ? '' : '['.implode(',', $responses).']';
+    }
+
+    /**
+     * Return true if we have a batch request
+     *
+     * ex : [
+     *   0 => '...',
+     *   1 => '...',
+     *   2 => '...',
+     *   3 => '...',
+     * ]
+     *
+     * @static
+     * @access public
+     * @param  array $payload
+     * @return bool
+     */
+    public static function isBatchRequest(array $payload)
+    {
+        return array_keys($payload) === range(0, count($payload) - 1);
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Request/RequestBuilder.php

@@ -0,0 +1,129 @@
+<?php
+
+namespace JsonRPC\Request;
+
+/**
+ * Class RequestBuilder
+ *
+ * @package JsonRPC\Request
+ * @author  Frederic Guillot
+ */
+class RequestBuilder
+{
+    /**
+     * Request ID
+     *
+     * @access private
+     * @var mixed
+     */
+    private $id = null;
+
+    /**
+     * Method name
+     *
+     * @access private
+     * @var string
+     */
+    private $procedure = '';
+
+    /**
+     * Method arguments
+     *
+     * @access private
+     * @var array
+     */
+    private $params = array();
+
+    /**
+     * Additional request attributes
+     *
+     * @access private
+     * @var array
+     */
+    private $reqattrs = array();
+
+    /**
+     * Get new object instance
+     *
+     * @static
+     * @access public
+     * @return RequestBuilder
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
+    /**
+     * Set id
+     *
+     * @access public
+     * @param  null $id
+     * @return RequestBuilder
+     */
+    public function withId($id)
+    {
+        $this->id = $id;
+        return $this;
+    }
+
+    /**
+     * Set method
+     *
+     * @access public
+     * @param  string $procedure
+     * @return RequestBuilder
+     */
+    public function withProcedure($procedure)
+    {
+        $this->procedure = $procedure;
+        return $this;
+    }
+
+    /**
+     * Set parameters
+     *
+     * @access public
+     * @param  array $params
+     * @return RequestBuilder
+     */
+    public function withParams(array $params)
+    {
+        $this->params = $params;
+        return $this;
+    }
+
+    /**
+     * Set additional request attributes
+     *
+     * @access public
+     * @param  array $reqattrs
+     * @return RequestBuilder
+     */
+    public function withRequestAttributes(array $reqattrs)
+    {
+        $this->reqattrs = $reqattrs;
+        return $this;
+    }
+
+    /**
+     * Build the payload
+     *
+     * @access public
+     * @return string
+     */
+    public function build()
+    {
+        $payload = array_merge_recursive($this->reqattrs, array(
+            'jsonrpc' => '2.0',
+            'method' => $this->procedure,
+            'id' => $this->id ?: mt_rand(),
+        ));
+
+        if (! empty($this->params)) {
+            $payload['params'] = $this->params;
+        }
+
+        return json_encode($payload);
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Request/RequestParser.php

@@ -0,0 +1,200 @@
+<?php
+
+namespace JsonRPC\Request;
+
+use Exception;
+use JsonRPC\Exception\AccessDeniedException;
+use JsonRPC\Exception\AuthenticationFailureException;
+use JsonRPC\Exception\InvalidJsonRpcFormatException;
+use JsonRPC\MiddlewareHandler;
+use JsonRPC\ProcedureHandler;
+use JsonRPC\Response\ResponseBuilder;
+use JsonRPC\Validator\JsonFormatValidator;
+use JsonRPC\Validator\RpcFormatValidator;
+
+/**
+ * Class RequestParser
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class RequestParser
+{
+    /**
+     * Request payload
+     *
+     * @access protected
+     * @var mixed
+     */
+    protected $payload;
+
+    /**
+     * List of exceptions that should not be relayed to the client
+     *
+     * @access protected
+     * @var array()
+     */
+    protected $localExceptions = array(
+        'JsonRPC\Exception\AuthenticationFailureException',
+        'JsonRPC\Exception\AccessDeniedException',
+    );
+
+    /**
+     * ProcedureHandler
+     *
+     * @access protected
+     * @var ProcedureHandler
+     */
+    protected $procedureHandler;
+
+    /**
+     * MiddlewareHandler
+     *
+     * @access protected
+     * @var MiddlewareHandler
+     */
+    protected $middlewareHandler;
+
+    /**
+     * Get new object instance
+     *
+     * @static
+     * @access public
+     * @return RequestParser
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
+    /**
+     * Set payload
+     *
+     * @access public
+     * @param  mixed $payload
+     * @return $this
+     */
+    public function withPayload($payload)
+    {
+        $this->payload = $payload;
+        return $this;
+    }
+
+    /**
+     * Exception classes that should not be relayed to the client
+     *
+     * @access public
+     * @param  mixed $exception
+     * @return $this
+     */
+    public function withLocalException($exception)
+    {
+        if (is_array($exception)) {
+            $this->localExceptions = array_merge($this->localExceptions, $exception);
+        } else {
+            $this->localExceptions[] = $exception;
+        }
+        
+        return $this;
+    }
+
+    /**
+     * Set procedure handler
+     *
+     * @access public
+     * @param  ProcedureHandler $procedureHandler
+     * @return $this
+     */
+    public function withProcedureHandler(ProcedureHandler $procedureHandler)
+    {
+        $this->procedureHandler = $procedureHandler;
+        return $this;
+    }
+
+    /**
+     * Set middleware handler
+     *
+     * @access public
+     * @param  MiddlewareHandler $middlewareHandler
+     * @return $this
+     */
+    public function withMiddlewareHandler(MiddlewareHandler $middlewareHandler)
+    {
+        $this->middlewareHandler = $middlewareHandler;
+        return $this;
+    }
+
+    /**
+     * Parse incoming request
+     *
+     * @access public
+     * @return string
+     * @throws AccessDeniedException
+     * @throws AuthenticationFailureException
+     */
+    public function parse()
+    {
+        try {
+
+            JsonFormatValidator::validate($this->payload);
+            RpcFormatValidator::validate($this->payload);
+
+            $this->middlewareHandler
+                ->withProcedure($this->payload['method'])
+                ->execute();
+
+            $result = $this->procedureHandler->executeProcedure(
+                $this->payload['method'],
+                empty($this->payload['params']) ? array() : $this->payload['params']
+            );
+
+            if (! $this->isNotification()) {
+                return ResponseBuilder::create()
+                    ->withId($this->payload['id'])
+                    ->withResult($result)
+                    ->build();
+            }
+        } catch (Exception $e) {
+            return $this->handleExceptions($e);
+        }
+
+        return '';
+    }
+
+    /**
+     * Handle exceptions
+     *
+     * @access protected
+     * @param  Exception $e
+     * @return string
+     * @throws Exception
+     */
+    protected function handleExceptions(Exception $e)
+    {
+        foreach ($this->localExceptions as $exception) {
+            if ($e instanceof $exception) {
+                throw $e;
+            }
+        }
+
+        if ($e instanceof InvalidJsonRpcFormatException || ! $this->isNotification()) {
+            return ResponseBuilder::create()
+                ->withId(isset($this->payload['id']) ? $this->payload['id'] : null)
+                ->withException($e)
+                ->build();
+        }
+
+        return '';
+    }
+
+    /**
+     * Return true if the message is a notification
+     *
+     * @access protected
+     * @return bool
+     */
+    protected function isNotification()
+    {
+        return is_array($this->payload) && !isset($this->payload['id']);
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Response/ResponseBuilder.php

@@ -0,0 +1,324 @@
+<?php
+
+namespace JsonRPC\Response;
+
+use BadFunctionCallException;
+use Exception;
+use InvalidArgumentException;
+use JsonRPC\Exception\AccessDeniedException;
+use JsonRPC\Exception\AuthenticationFailureException;
+use JsonRPC\Exception\InvalidJsonFormatException;
+use JsonRPC\Exception\InvalidJsonRpcFormatException;
+use JsonRPC\Exception\ResponseEncodingFailureException;
+use JsonRPC\Exception\ResponseException;
+use JsonRPC\Validator\JsonEncodingValidator;
+
+/**
+ * Class ResponseBuilder
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class ResponseBuilder
+{
+    /**
+     * Payload ID
+     *
+     * @access private
+     * @var mixed
+     */
+    private $id;
+
+    /**
+     * Payload ID
+     *
+     * @access private
+     * @var mixed
+     */
+    private $result;
+
+    /**
+     * Payload error code
+     *
+     * @access private
+     * @var integer
+     */
+    private $errorCode;
+
+    /**
+     * Payload error message
+     *
+     * @access private
+     * @var string
+     */
+    private $errorMessage;
+
+    /**
+     * Payload error data
+     *
+     * @access private
+     * @var mixed
+     */
+    private $errorData;
+
+    /**
+     * HTTP Headers
+     *
+     * @access private
+     * @var array
+     */
+    private $headers = array(
+        'Content-Type' => 'application/json',
+    );
+
+    /**
+     * HTTP status
+     *
+     * @access private
+     * @var string
+     */
+    private $status;
+
+    /**
+     * Exception
+     *
+     * @access private
+     * @var ResponseException
+     */
+    private $exception;
+
+    /**
+     * Get new object instance
+     *
+     * @static
+     * @access public
+     * @return ResponseBuilder
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
+    /**
+     * Set id
+     *
+     * @access public
+     * @param  mixed  $id
+     * @return $this
+     */
+    public function withId($id)
+    {
+        $this->id = $id;
+        return $this;
+    }
+
+    /**
+     * Set result
+     *
+     * @access public
+     * @param  mixed $result
+     * @return $this
+     */
+    public function withResult($result)
+    {
+        $this->result = $result;
+        return $this;
+    }
+
+    /**
+     * Set error
+     *
+     * @access public
+     * @param  integer $code
+     * @param  string  $message
+     * @param  string  $data
+     * @return $this
+     */
+    public function withError($code, $message, $data = '')
+    {
+        $this->errorCode = $code;
+        $this->errorMessage = $message;
+        $this->errorData = $data;
+        return $this;
+    }
+
+    /**
+     * Set exception
+     *
+     * @access public
+     * @param  Exception $exception
+     * @return $this
+     */
+    public function withException(Exception $exception)
+    {
+        $this->exception = $exception;
+        return $this;
+    }
+
+    /**
+     * Add HTTP header
+     *
+     * @access public
+     * @param  string $name
+     * @param  string $value
+     * @return $this
+     */
+    public function withHeader($name, $value)
+    {
+        $this->headers[$name] = $value;
+        return $this;
+    }
+
+    /**
+     * Add HTTP Status
+     *
+     * @access public
+     * @param  string $status
+     * @return $this
+     */
+    public function withStatus($status)
+    {
+        $this->status = $status;
+        return $this;
+    }
+
+    /**
+     * Get status
+     *
+     * @access public
+     * @return string
+     */
+    public function getStatus()
+    {
+        return $this->status;
+    }
+
+    /**
+     * Get headers
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getHeaders()
+    {
+        return $this->headers;
+    }
+
+    /**
+     * Build response
+     *
+     * @access public
+     * @return string
+     */
+    public function build()
+    {
+        $encodedResponse = json_encode($this->buildResponse());
+        JsonEncodingValidator::validate();
+
+        return $encodedResponse;
+    }
+
+    /**
+     * Send HTTP headers
+     *
+     * @access public
+     * @return $this
+     */
+    public function sendHeaders()
+    {
+        if (! empty($this->status)) {
+            header($this->status);
+        }
+
+        foreach ($this->headers as $name => $value) {
+            header($name.': '.$value);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Build response payload
+     *
+     * @access private
+     * @return array
+     */
+    private function buildResponse()
+    {
+        $response = array('jsonrpc' => '2.0');
+        $this->handleExceptions();
+
+        if (! empty($this->errorMessage)) {
+            $response['error'] = $this->buildErrorResponse();
+        } else {
+            $response['result'] = $this->result;
+        }
+
+        $response['id'] = $this->id;
+        return $response;
+    }
+
+    /**
+     * Build response error payload
+     *
+     * @access private
+     * @return array
+     */
+    private function buildErrorResponse()
+    {
+        $response = array(
+            'code' => $this->errorCode,
+            'message' => $this->errorMessage,
+        );
+
+        if (! empty($this->errorData)) {
+            $response['data'] = $this->errorData;
+        }
+
+        return $response;
+    }
+
+    /**
+     * Transform exceptions to JSON-RPC errors
+     *
+     * @access private
+     */
+    private function handleExceptions()
+    {
+        if ($this->exception instanceof InvalidJsonFormatException) {
+            $this->errorCode = -32700;
+            $this->errorMessage = 'Parse error';
+            $this->id = null;
+        } elseif ($this->exception instanceof InvalidJsonRpcFormatException) {
+            $this->errorCode = -32600;
+            $this->errorMessage = 'Invalid Request';
+            $this->id = null;
+        } elseif ($this->exception instanceof BadFunctionCallException) {
+            $this->errorCode = -32601;
+            $this->errorMessage = 'Method not found';
+        } elseif ($this->exception instanceof InvalidArgumentException) {
+            $this->errorCode = -32602;
+            $this->errorMessage = 'Invalid params';
+        } elseif ($this->exception instanceof ResponseEncodingFailureException) {
+            $this->errorCode = -32603;
+            $this->errorMessage = 'Internal error';
+            $this->errorData = $this->exception->getMessage();
+        } elseif ($this->exception instanceof AuthenticationFailureException) {
+            $this->errorCode = 401;
+            $this->errorMessage = 'Unauthorized';
+            $this->status = 'HTTP/1.0 401 Unauthorized';
+            $this->withHeader('WWW-Authenticate', 'Basic realm="JsonRPC"');
+        } elseif ($this->exception instanceof AccessDeniedException) {
+            $this->errorCode = 403;
+            $this->errorMessage = 'Forbidden';
+            $this->status = 'HTTP/1.0 403 Forbidden';
+        } elseif ($this->exception instanceof ResponseException) {
+            $this->errorCode = $this->exception->getCode();
+            $this->errorMessage = $this->exception->getMessage();
+            $this->errorData = $this->exception->getData();
+        } elseif ($this->exception instanceof Exception) {
+            $this->errorCode = $this->exception->getCode();
+            $this->errorMessage = $this->exception->getMessage();
+        }
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Response/ResponseParser.php

@@ -0,0 +1,154 @@
+<?php
+
+namespace JsonRPC\Response;
+
+use BadFunctionCallException;
+use InvalidArgumentException;
+use Exception;
+use JsonRPC\Exception\InvalidJsonFormatException;
+use JsonRPC\Exception\InvalidJsonRpcFormatException;
+use JsonRPC\Exception\ResponseException;
+use JsonRPC\Validator\JsonFormatValidator;
+
+/**
+ * Class ResponseParser
+ *
+ * @package JsonRPC\Request
+ * @author  Frederic Guillot
+ */
+class ResponseParser
+{
+    /**
+     * Payload
+     *
+     * @access private
+     * @var mixed
+     */
+    private $payload;
+
+    /**
+     * Do not immediately throw an exception on error. Return it instead.
+     *
+     * @var bool
+     */
+    private $returnException = false;
+
+    /**
+     * Get new object instance
+     *
+     * @static
+     * @access public
+     * @return ResponseParser
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
+    /**
+     * Set Return Exception Or Throw It
+     *
+     * @param $returnException
+     * @return ResponseParser
+     */
+    public function withReturnException($returnException)
+    {
+        $this->returnException = $returnException;
+        return $this;
+    }
+
+    /**
+     * Set payload
+     *
+     * @access public
+     * @param  mixed $payload
+     * @return $this
+     */
+    public function withPayload($payload)
+    {
+        $this->payload = $payload;
+        return $this;
+    }
+
+    /**
+     * Parse response
+     *
+     * @return array|Exception|null
+     * @throws InvalidJsonFormatException
+     * @throws BadFunctionCallException
+     * @throws InvalidJsonRpcFormatException
+     * @throws InvalidArgumentException
+     * @throws Exception
+     * @throws ResponseException
+     */
+    public function parse()
+    {
+        JsonFormatValidator::validate($this->payload);
+
+        if ($this->isBatchResponse()) {
+            $results = array();
+
+            foreach ($this->payload as $response) {
+                $results[] = self::create()
+                    ->withReturnException($this->returnException)
+                    ->withPayload($response)
+                    ->parse();
+            }
+
+            return $results;
+        }
+
+        if (isset($this->payload['error']['code'])) {
+            try {
+                $this->handleExceptions();
+            } catch (Exception $e) {
+                if ($this->returnException) {
+                    return $e;
+                }
+                throw $e;
+            }
+        }
+
+        return isset($this->payload['result']) ? $this->payload['result'] : null;
+    }
+
+    /**
+     * Handle exceptions
+     *
+     * @access private
+     * @throws InvalidJsonFormatException
+     * @throws InvalidJsonRpcFormatException
+     * @throws ResponseException
+     */
+    private function handleExceptions()
+    {
+        switch ($this->payload['error']['code']) {
+            case -32700:
+                throw new InvalidJsonFormatException('Parse error: '.$this->payload['error']['message']);
+            case -32600:
+                throw new InvalidJsonRpcFormatException('Invalid Request: '.$this->payload['error']['message']);
+            case -32601:
+                throw new BadFunctionCallException('Procedure not found: '.$this->payload['error']['message']);
+            case -32602:
+                throw new InvalidArgumentException('Invalid arguments: '.$this->payload['error']['message']);
+            default:
+                throw new ResponseException(
+                    $this->payload['error']['message'],
+                    $this->payload['error']['code'],
+                    null,
+                    isset($this->payload['error']['data']) ? $this->payload['error']['data'] : null
+                );
+        }
+    }
+
+    /**
+     * Return true if we have a batch response
+     *
+     * @access private
+     * @return boolean
+     */
+    private function isBatchResponse()
+    {
+        return array_keys($this->payload) === range(0, count($this->payload) - 1);
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Server.php

@@ -0,0 +1,386 @@
+<?php
+
+namespace JsonRPC;
+
+use Closure;
+use Exception;
+use JsonRPC\Request\BatchRequestParser;
+use JsonRPC\Request\RequestParser;
+use JsonRPC\Response\ResponseBuilder;
+use JsonRPC\Validator\HostValidator;
+use JsonRPC\Validator\JsonFormatValidator;
+use JsonRPC\Validator\UserValidator;
+
+/**
+ * JsonRPC server class
+ *
+ * @package JsonRPC
+ * @author  Frederic Guillot
+ */
+class Server
+{
+    /**
+     * Allowed hosts
+     *
+     * @access protected
+     * @var array
+     */
+    protected $hosts = array();
+
+    /**
+     * Data received from the client
+     *
+     * @access protected
+     * @var array
+     */
+    protected $payload = array();
+
+    /**
+     * List of exceptions that should not be relayed to the client
+     *
+     * @access protected
+     * @var array()
+     */
+    protected $localExceptions = array();
+
+    /**
+     * Username
+     *
+     * @access protected
+     * @var string
+     */
+    protected $username = '';
+
+    /**
+     * Password
+     *
+     * @access protected
+     * @var string
+     */
+    protected $password = '';
+
+    /**
+     * Allowed users
+     *
+     * @access protected
+     * @var array
+     */
+    protected $users = array();
+
+    /**
+     * $_SERVER
+     *
+     * @access protected
+     * @var array
+     */
+    protected $serverVariable;
+
+    /**
+     * ProcedureHandler object
+     *
+     * @access protected
+     * @var ProcedureHandler
+     */
+    protected $procedureHandler;
+
+    /**
+     * MiddlewareHandler object
+     *
+     * @access protected
+     * @var MiddlewareHandler
+     */
+    protected $middlewareHandler;
+
+    /**
+     * Response builder
+     *
+     * @access protected
+     * @var ResponseBuilder
+     */
+    protected $responseBuilder;
+
+    /**
+     * Response builder
+     *
+     * @access protected
+     * @var RequestParser
+     */
+    protected $requestParser;
+
+    /**
+     *
+     * Batch request parser
+     *
+     * @access protected
+     * @var BatchRequestParser
+     */
+    protected $batchRequestParser;
+
+    /**
+     * Constructor
+     *
+     * @access public
+     * @param  string              $request
+     * @param  array               $server
+     * @param  ResponseBuilder     $responseBuilder
+     * @param  RequestParser       $requestParser
+     * @param  BatchRequestParser  $batchRequestParser
+     * @param  ProcedureHandler    $procedureHandler
+     * @param  MiddlewareHandler   $middlewareHandler
+     */
+    public function __construct(
+        $request = '',
+        array $server = array(),
+        ResponseBuilder $responseBuilder = null,
+        RequestParser $requestParser = null,
+        BatchRequestParser $batchRequestParser = null,
+        ProcedureHandler $procedureHandler = null,
+        MiddlewareHandler $middlewareHandler = null
+    ) {
+        if ($request !== '') {
+            $this->payload = json_decode($request, true);
+        } else {
+            $this->payload = json_decode(file_get_contents('php://input'), true);
+        }
+
+        $this->serverVariable = $server ?: $_SERVER;
+        $this->responseBuilder = $responseBuilder ?: ResponseBuilder::create();
+        $this->requestParser = $requestParser ?: RequestParser::create();
+        $this->batchRequestParser = $batchRequestParser ?: BatchRequestParser::create();
+        $this->procedureHandler = $procedureHandler ?: new ProcedureHandler();
+        $this->middlewareHandler = $middlewareHandler ?: new MiddlewareHandler();
+    }
+
+    /**
+     * Define alternative authentication header
+     *
+     * @access public
+     * @param  string   $header   Header name
+     * @return $this
+     */
+    public function setAuthenticationHeader($header)
+    {
+        if (! empty($header)) {
+            $header = 'HTTP_'.str_replace('-', '_', strtoupper($header));
+            $value = $this->getServerVariable($header);
+
+            if (! empty($value)) {
+                list($this->username, $this->password) = explode(':', base64_decode($value));
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * Get ProcedureHandler
+     *
+     * @access public
+     * @return ProcedureHandler
+     */
+    public function getProcedureHandler()
+    {
+        return $this->procedureHandler;
+    }
+
+    /**
+     * Get MiddlewareHandler
+     *
+     * @access public
+     * @return MiddlewareHandler
+     */
+    public function getMiddlewareHandler()
+    {
+        return $this->middlewareHandler;
+    }
+
+    /**
+     * Get username
+     *
+     * @access public
+     * @return string
+     */
+    public function getUsername()
+    {
+        return $this->username ?: $this->getServerVariable('PHP_AUTH_USER');
+    }
+
+    /**
+     * Get password
+     *
+     * @access public
+     * @return string
+     */
+    public function getPassword()
+    {
+        return $this->password ?: $this->getServerVariable('PHP_AUTH_PW');
+    }
+
+    /**
+     * IP based client restrictions
+     *
+     * @access public
+     * @param  array   $hosts   List of hosts
+     * @return $this
+     */
+    public function allowHosts(array $hosts)
+    {
+        $this->hosts = $hosts;
+        return $this;
+    }
+
+    /**
+     * HTTP Basic authentication
+     *
+     * @access public
+     * @param  array   $users   Dictionary of username/password
+     * @return $this
+     */
+    public function authentication(array $users)
+    {
+        $this->users = $users;
+        return $this;
+    }
+
+    /**
+     * Register a new procedure
+     *
+     * @access public
+     * @deprecated Use $server->getProcedureHandler()->withCallback($procedure, $callback)
+     * @param  string   $procedure       Procedure name
+     * @param  closure  $callback        Callback
+     * @return $this
+     */
+    public function register($procedure, Closure $callback)
+    {
+        $this->procedureHandler->withCallback($procedure, $callback);
+        return $this;
+    }
+
+    /**
+     * Bind a procedure to a class
+     *
+     * @access public
+     * @deprecated Use $server->getProcedureHandler()->withClassAndMethod($procedure, $class, $method);
+     * @param  string   $procedure    Procedure name
+     * @param  mixed    $class        Class name or instance
+     * @param  string   $method       Procedure name
+     * @return $this
+     */
+    public function bind($procedure, $class, $method = '')
+    {
+        $this->procedureHandler->withClassAndMethod($procedure, $class, $method);
+        return $this;
+    }
+
+    /**
+     * Bind a class instance
+     *
+     * @access public
+     * @deprecated Use $server->getProcedureHandler()->withObject($instance);
+     * @param  mixed   $instance    Instance name
+     * @return $this
+     */
+    public function attach($instance)
+    {
+        $this->procedureHandler->withObject($instance);
+        return $this;
+    }
+
+    /**
+     * Exception classes that should not be relayed to the client
+     *
+     * @access public
+     * @param  Exception|string $exception
+     * @return $this
+     */
+    public function withLocalException($exception)
+    {
+        $this->localExceptions[] = $exception;
+        return $this;
+    }
+
+    /**
+     * Parse incoming requests
+     *
+     * @access public
+     * @return string
+     */
+    public function execute()
+    {
+        try {
+            JsonFormatValidator::validate($this->payload);
+            HostValidator::validate($this->hosts, $this->getServerVariable('REMOTE_ADDR'));
+            UserValidator::validate($this->users, $this->getUsername(), $this->getPassword());
+
+            $this->middlewareHandler
+                ->withUsername($this->getUsername())
+                ->withPassword($this->getPassword())
+            ;
+
+            $response = $this->parseRequest();
+
+        } catch (Exception $e) {
+            $response = $this->handleExceptions($e);
+        }
+
+        $this->responseBuilder->sendHeaders();
+        return $response;
+    }
+
+    /**
+     * Handle exceptions
+     * 
+     * @access protected
+     * @param  Exception $e
+     * @return string
+     * @throws Exception
+     */
+    protected function handleExceptions(Exception $e)
+    {
+        foreach ($this->localExceptions as $exception) {
+            if ($e instanceof $exception) {
+                throw $e;
+            }
+        }
+
+        return $this->responseBuilder->withException($e)->build();
+    }
+
+    /**
+     * Parse incoming request
+     *
+     * @access protected
+     * @return string
+     */
+    protected function parseRequest()
+    {
+        if (BatchRequestParser::isBatchRequest($this->payload)) {
+            return $this->batchRequestParser
+                ->withPayload($this->payload)
+                ->withProcedureHandler($this->procedureHandler)
+                ->withMiddlewareHandler($this->middlewareHandler)
+                ->withLocalException($this->localExceptions)
+                ->parse();
+        }
+
+        return $this->requestParser
+            ->withPayload($this->payload)
+            ->withProcedureHandler($this->procedureHandler)
+            ->withMiddlewareHandler($this->middlewareHandler)
+            ->withLocalException($this->localExceptions)
+            ->parse();
+    }
+
+    /**
+     * Check existence and get value of server variable
+     *
+     * @access protected
+     * @param  string $variable
+     * @return string|null
+     */
+    protected function getServerVariable($variable)
+    {
+        return isset($this->serverVariable[$variable]) ? $this->serverVariable[$variable] : null;
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Validator/HostValidator.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace JsonRPC\Validator;
+
+use JsonRPC\Exception\AccessDeniedException;
+
+/**
+ * Class HostValidator
+ *
+ * @package JsonRPC\Validator
+ * @author  Frederic Guillot
+ */
+class HostValidator
+{
+    /**
+     * Validate
+     *
+     * @static
+     * @access public
+     * @param  array  $hosts
+     * @param  string $remoteAddress
+     * @throws AccessDeniedException
+     */
+    public static function validate(array $hosts, $remoteAddress)
+    {
+        if (! empty($hosts) && ! in_array($remoteAddress, $hosts)) {
+            throw new AccessDeniedException('Access Forbidden');
+        }
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Validator/JsonEncodingValidator.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace JsonRPC\Validator;
+
+use JsonRPC\Exception\ResponseEncodingFailureException;
+
+/**
+ * Class JsonEncodingValidator
+ *
+ * @package JsonRPC\Validator
+ * @author  Frederic Guillot
+ */
+class JsonEncodingValidator
+{
+    public static function validate()
+    {
+        $jsonError = json_last_error();
+
+        if ($jsonError !== JSON_ERROR_NONE) {
+            switch ($jsonError) {
+                case JSON_ERROR_DEPTH:
+                    $errorMessage = 'Maximum stack depth exceeded';
+                    break;
+                case JSON_ERROR_STATE_MISMATCH:
+                    $errorMessage = 'Underflow or the modes mismatch';
+                    break;
+                case JSON_ERROR_CTRL_CHAR:
+                    $errorMessage = 'Unexpected control character found';
+                    break;
+                case JSON_ERROR_SYNTAX:
+                    $errorMessage = 'Syntax error, malformed JSON';
+                    break;
+                case JSON_ERROR_UTF8:
+                    $errorMessage = 'Malformed UTF-8 characters, possibly incorrectly encoded';
+                    break;
+                default:
+                    $errorMessage = 'Unknown error';
+                    break;
+            }
+
+            throw new ResponseEncodingFailureException($errorMessage, $jsonError);
+        }
+    }
+}

vendor/fguillot/json-rpc/src/JsonRPC/Validator/JsonFormatValidator.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace JsonRPC\Validator;
+
+use JsonRPC\Exception\InvalidJsonFormatException;
+
+/**
+ * Class JsonFormatValidator
+ *
+ * @package JsonRPC\Validator
+ * @author  Frederic Guillot
+ */
+class JsonFormatValidator
+{
+    /**
+     * Validate
+     *
+     * @static
+     * @access public
+     * @param  mixed $payload
+     * @throws InvalidJsonFormatException
+     */
+    public static function validate($payload)
+    {
+        if (! is_array($payload)) {
+            throw new InvalidJsonFormatException('Malformed payload');
+        }
+    }
+}
+

vendor/fguillot/json-rpc/src/JsonRPC/Validator/RpcFormatValidator.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace JsonRPC\Validator;
+
+use JsonRPC\Exception\InvalidJsonRpcFormatException;
+
+/**
+ * Class RpcFormatValidator
+ *
+ * @package JsonRPC\Validator
+ * @author  Frederic Guillot
+ */
+class RpcFormatValidator
+{
+    /**
+     * Validate
+     *
+     * @static
+     * @access public
+     * @param  array $payload
+     * @throws InvalidJsonRpcFormatException
+     */
+    public static function validate(array $payload)
+    {
+        if (! isset($payload['jsonrpc']) ||
+            ! isset($payload['method']) ||
+            ! is_string($payload['method']) ||
+            $payload['jsonrpc'] !== '2.0' ||
+            (isset($payload['params']) && ! is_array($payload['params']))) {
+
+            throw new InvalidJsonRpcFormatException('Invalid JSON RPC payload');
+        }
+    }
+}
+

vendor/fguillot/json-rpc/src/JsonRPC/Validator/UserValidator.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace JsonRPC\Validator;
+
+use JsonRPC\Exception\AuthenticationFailureException;
+
+/**
+ * Class UserValidator
+ *
+ * @package JsonRPC\Validator
+ * @author  Frederic Guillot
+ */
+class UserValidator
+{
+    public static function validate(array $users, $username, $password)
+    {
+        if (! empty($users) && (! isset($users[$username]) || $users[$username] !== $password)) {
+            throw new AuthenticationFailureException('Access not allowed');
+        }
+    }
+}