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<?php
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namespace Resta\Middleware;
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use Resta\Router\Route;
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use Resta\Support\Utils;
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use Resta\Contracts\HandleContracts;
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use Resta\Foundation\ApplicationProvider;
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use Resta\Support\AppData\ServiceMiddlewareManager;
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use Resta\Contracts\ServiceMiddlewareManagerContracts;
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class MiddlewareProvider extends ApplicationProvider implements HandleContracts
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{
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/**
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* @var array $odds
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*/
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protected $odds = [];
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/**
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* @var array $show
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*/
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protected $show = [];
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/**
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* @var array $middleware
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*/
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protected $middleware = [];
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/**
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* @var $serviceMiddleware
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*/
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protected $serviceMiddleware;
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/**
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* after middleware
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*
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* @return void|mixed
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*/
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public function after()
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{
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//middleware handle process
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$this->handleMiddlewareProcess('after');
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}
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/**
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* check namespace and specificCondition
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*
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* @return bool
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*/
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private function checkNamespaceAndSpecificCondition()
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{
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return Utils::isNamespaceExists($this->middleware['namespace'])
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&& $this->specificMiddlewareCondition($this->middleware['key']);
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}
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/**
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* get resolve service middleware
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*
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* @return mixed
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*/
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public function getResolveServiceMiddleware()
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{
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if(!is_null($this->serviceMiddleware)){
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return $this->app->resolve($this->serviceMiddleware);
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}
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return $this->app['middlewareClass'];
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}
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/**
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* get assigned service middleware
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*
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* @return mixed
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*/
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public function getServiceMiddleware()
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{
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return $this->serviceMiddleware;
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}
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/**
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* get show data for middleware
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*
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* @return array
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*/
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public function getShow()
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{
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return $this->show;
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}
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/**
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* application middleware handle
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*
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* @return void
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*/
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public function handle()
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{
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//set define for middleware
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define('middleware',true);
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//middleware handle process
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$this->handleMiddlewareProcess();
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}
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/**
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* handle middleware process
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*
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* @param string $method
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* @return void|mixed
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*/
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public function handleMiddlewareProcess($method='handle')
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{
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// the app instance is a global application example,
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// and a hash is loaded as this hash.
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$this->setMiddleware();
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// the middleware class must be subject to
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// the ServiceMiddlewareManagerContracts interface rule to be implemented.
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if(!$this->getResolveServiceMiddleware() instanceof ServiceMiddlewareManagerContracts){
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exception()->badMethodCall('Service middleware does not have ServiceMiddlewareManagerContracts');
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}
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//When your application is requested, the middleware classes are running before all bootstrapper executables.
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//Thus, if you make http request your application, you can verify with an intermediate middleware layer
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//and throw an exception.
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$resolveServiceMiddleware = $this->getResolveServiceMiddleware()->{$method}();
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return $this->serviceMiddleware($resolveServiceMiddleware);
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}
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/**
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* middleware key odds
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*
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* @param $key null
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* @return array
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*/
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public function middlewareKeyOdds($key=null)
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{
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$route = Route::getRouteResolve();
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$endpoint = (isset($route['namespace']))
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? $route['namespace']
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: (defined('endpoint')) ? endpoint : null;
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$method = (isset($route['method']))
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? $route['method'] :
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($this->app->has('routeParameters')) ? implode("/",$this->app['routeParameters']) : '';
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$http = (isset($route['http']))
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? $route['http'] :
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($this->app->has('httpMethod')) ? $this->app['httpMethod'] : null ;
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// identifying constants for the middleware layer.
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// with the property of the user, the user is free to determine the constants that the middleware layer wants.
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$method = $this->odds['method'] ?? $method;
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$endpoint = $this->odds['endpoint'] ?? $endpoint;
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$http = $this->odds['http'] ?? $http;
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//method can only return fixed.
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if(!is_null($key)){
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if(isset($$key)) return $$key;
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}
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//middleware key odds
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return [
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strtolower($endpoint),
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strtolower($endpoint).'@'.strtolower($http),
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strtolower($endpoint).'@'.strtolower($http).'@'.strtolower($method),
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strtolower($endpoint).'@'.strtolower($method),
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strtolower($endpoint).'@'.strtolower($method).'@'.strtolower($http)
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];
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}
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/**
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* service middleware
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*
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* @param array $middleware
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*/
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public function serviceMiddleware($middleware=array())
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{
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$this->show = [];
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//It will be run individually according to the rules of
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//the middleware classes specified for the service middleware middleware.
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foreach($middleware as $middleVal=>$middleKey){
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// if the keys in the array in the service middleware class represent a class,
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// this value is checked, if it does not represent the class,
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// it is detected as a short name and is searched in the middleware directory.
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if(Utils::isNamespaceExists($middleVal)){
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$middlewareNamespace = $middleVal;
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}
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else{
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$middlewareNamespace = app()->namespace()->middleware().'\\'.ucfirst($middleVal);
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}
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//middleware and exclude class instances
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$excludeClass = $this->app['excludeClass'];
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$middlewareClass = $this->getResolveServiceMiddleware();
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//middleware definitions.
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$this->middleware['namespace'] = $middlewareNamespace;
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$this->middleware['key'] = $middleKey;
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$this->middleware['class'] = $middlewareClass;
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$this->middleware['middlewareName'] = $middleVal;
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$this->middleware['odds'] = $this->middlewareKeyOdds();
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//middleware class for service middleware
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//it will be handled according to the following rule.
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//The exclude class will return a callback and allocate the result as bool to the exclude variable.
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//If the exclude variable is true then the middleware will be run.
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$excludeClass->exclude($this->middleware,function($exclude) use ($middleVal){
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if($exclude){
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//the condition of a specific statement to be handled
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if($this->checkNamespaceAndSpecificCondition()){
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$this->pointer($middleVal);
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//directly registered to the middleware name show property.
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$this->show[] = class_basename($this->middleware['namespace']);
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// the middleware namespace must have handletraitcontract interface property.
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// otherwise, middleware will not work.
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if(false === $this->app->runningInConsole()
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&& $this->app->resolve($this->middleware['namespace']) instanceof HandleContracts){
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$this->app->resolve($this->middleware['namespace'])->handle();
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}
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}
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}
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});
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}
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}
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/**
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* sey middleware key odds
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*
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* @param null $key
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* @param null $value
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*/
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public function setKeyOdds($key=null,$value=null)
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{
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//user-defined middleware constants.
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if(!is_null($key) && !is_null($value)){
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$this->odds[$key] = $value;
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}
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}
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/**
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* register to container for middleware
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*
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* @return void
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*/
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private function setMiddleware()
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{
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//get service middleware namespace
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$serviceMiddleware = $this->serviceMiddleware ?? app()->namespace()->serviceMiddleware();
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// if the service middleware does not represent a class,
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// then in this case core support is assigned as a class service middleware.
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if(Utils::isNamespaceExists($serviceMiddleware)===false){
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$serviceMiddleware = ServiceMiddlewareManager::class;
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}
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//We are logging the kernel for the middleware class and the exclude class
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$this->app->register('middlewareClass',$this->app->resolve($serviceMiddleware));
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$this->app->register('excludeClass',$this->app->resolve(ExcludeMiddleware::class));
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}
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/**
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* set service middleware
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*
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* @param null $serviceMiddleware
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*/
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public function setserviceMiddleware($serviceMiddleware=null)
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{
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if(!is_null($serviceMiddleware)){
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$this->serviceMiddleware = $serviceMiddleware;
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}
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}
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/**
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* specific middleware condition
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*
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* @param $key
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* @return bool
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*/
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private function specificMiddlewareCondition($key)
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{
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//If the all option is present,
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//it is automatically injected into all services for the middleware application.
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if($key==="all") return true;
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//service middleware key
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//if it is array,check odds
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if(is_array($key)){
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//get middleware odd keys
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$odds = $this->middlewareKeyOdds();
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//If the user definition specified in the middleware key is an array,
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//then the middleware is conditioned and the services are individually checked according to
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//the degree of conformity with the middlewareOdds method and
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//the middleware is executed under the specified condition.
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foreach($key as $item){
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if(in_array($item,$odds)){
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return true;
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}
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}
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}
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//return false
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return false;
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}
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/**
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316
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* register to container for middleware pointer
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*
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* @param $middleValue
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* @return void
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*/
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321
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private function pointer($middleValue)
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{
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if(isset($this->app['pointer']['middlewareList'])){
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325
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$middlewareList = $this->app['pointer']['middlewareList'];
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327
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if(is_array($middlewareList)){
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$middlewareList = array_merge($middlewareList,[$middleValue]);
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$this->app->register('pointer','middlewareList',$middlewareList);
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}
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}
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else{
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$this->app->register('pointer','middlewareList',[$middleValue]);
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}
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}
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} |