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<?php |
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namespace SilverStripe\Control; |
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use SilverStripe\Core\Application; |
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use SilverStripe\Control\HTTPMiddleware; |
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use SilverStripe\Core\Kernel; |
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/** |
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* Invokes the HTTP application within an ErrorControlChain |
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*/ |
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class HTTPApplication implements Application |
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{ |
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/** |
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* @var HTTPMiddleware[] |
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*/ |
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protected $middlewares = []; |
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/** |
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* @var Kernel |
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*/ |
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protected $kernel; |
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public function __construct(Kernel $kernel) |
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{ |
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$this->kernel = $kernel; |
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} |
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/** |
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* @return HTTPMiddleware[] |
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*/ |
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public function getMiddlewares() |
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{ |
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return $this->middlewares; |
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} |
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/** |
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* @param HTTPMiddleware[] $middlewares |
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* @return $this |
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*/ |
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public function setMiddlewares($middlewares) |
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{ |
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$this->middlewares = $middlewares; |
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return $this; |
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} |
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/** |
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* @param HTTPMiddleware $middleware |
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* @return $this |
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*/ |
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public function addMiddleware(HTTPMiddleware $middleware) |
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{ |
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$this->middlewares[] = $middleware; |
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return $this; |
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} |
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/** |
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* Call middleware |
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* |
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* @param HTTPRequest $request |
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* @param callable $last Last config to call |
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* @return HTTPResponse |
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*/ |
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protected function callMiddleware(HTTPRequest $request, $last) |
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{ |
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// Reverse middlewares |
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$next = $last; |
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/** @var HTTPMiddleware $middleware */ |
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foreach (array_reverse($this->getMiddlewares()) as $middleware) { |
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$next = function ($request) use ($middleware, $next) { |
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return $middleware->process($request, $next); |
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}; |
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} |
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return call_user_func($next, $request); |
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} |
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/** |
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* Get the kernel for this application |
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* |
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* @return Kernel |
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*/ |
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public function getKernel() |
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{ |
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return $this->kernel; |
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} |
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/** |
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* Handle the given HTTP request |
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* |
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* @param HTTPRequest $request |
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* @return HTTPResponse |
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*/ |
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public function handle(HTTPRequest $request) |
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{ |
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$flush = $request->getVar('flush') || strpos($request->getURL(), 'dev/build') === 0; |
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// Ensure boot is invoked |
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return $this->execute($request, function (HTTPRequest $request) { |
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// Start session and execute |
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$request->getSession()->init(); |
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return Director::direct($request); |
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}, $flush); |
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} |
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/** |
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* Safely boot the application and execute the given main action |
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* |
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* @param HTTPRequest $request |
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* @param callable $callback |
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* @param bool $flush |
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* @return HTTPResponse |
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*/ |
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public function execute(HTTPRequest $request, callable $callback, $flush = false) |
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{ |
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try { |
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return $this->callMiddleware($request, function ($request) use ($callback, $flush) { |
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// Pre-request boot |
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$this->getKernel()->boot($flush); |
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return call_user_func($callback, $request); |
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}); |
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} catch (HTTPResponse_Exception $ex) { |
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return $ex->getResponse(); |
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} finally { |
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$this->getKernel()->shutdown(); |
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} |
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} |
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} |
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silverstripe /
silverstripe-framework
