move formatting from JS to PHP
[mdref/mdref] / mdref / Action.php
index 37b3d51321ebab4400b8400420b621f91e07d5ec..0c48dd6b403c448d5d6f9538b141e448aadc01d1 100644 (file)
 
 namespace mdref;
 
-use http\Controller\Observer;
+use http\Env\Request;
+use http\Env\Response;
+use http\Message\Body;
+use stdClass;
+use function file_get_contents;
+use function htmlspecialchars;
+use function ob_start;
+use const ROOT;
 
 /**
  * Request handler
  */
-class Action extends Observer {
-       /**
-        * Reference paths
-        * @var string
-        */
-       protected $refpath;
-       
+class Action {
        /**
         * The reference
         * @var \mdref\Reference
         */
        private $reference;
-       
+
+       /**
+        * @var \http\Env\Request
+        */
+       private $request;
+
+       /**
+        * @var \http\Env\Response
+        */
+       private $response;
+
+       /**
+        * @var resource
+        */
+       private $output;
+
+       /**
+        * @var \http\Url
+        */
+       private $baseUrl;
+
        /**
         * Initialize the reference
         */
-       protected function init() {
-               $this->reference = new Reference(explode(PATH_SEPARATOR, $this->refpath));
+       public function __construct(Reference $ref, Request $req, Response $res, BaseUrl $baseUrl, $output = null) {
+               $this->reference = $ref;
+               $this->request = $req;
+               $this->response = $res;
+               $this->baseUrl = $baseUrl;
+               $this->output = $output;
+               ob_start($res);
+       }
+
+       /**
+        * Shorthand for \htmlspecialchars()
+        * @param $txt string
+        * @return string
+        */
+       function esc(string $txt) : string {
+               return htmlspecialchars($txt);
        }
-       
+
        /**
         * Create the view payload
-        * @param \http\Controller $ctl
         * @return \stdClass
         */
-       private function createPayload(\http\Controller $ctl) {
-               $pld = new \stdClass;
-               
-               try {
-                       $pld->quick = [$this->reference, "formatString"];
-                       $pld->file = [$this->reference, "formatFile"];
-                       
-                       $pld->ref = implode("/",  $this->baseUrl->params(
-                               $this->baseUrl->mod($ctl->getRequest()->getRequestUrl())));
-                       
-                       $pld->refs = $this->reference;
-                       $pld->baseUrl = $this->baseUrl;
-                       
-               } catch (\Exception $e) {
-                       $pld->exception = $e;
-               }
-               
+       private function createPayload() : object {
+               $pld = new stdClass;
+
+               $pld->esc = "htmlspecialchars";
+               $pld->anchor = [$this->reference, "formatAnchor"];
+               $pld->quick = [$this->reference, "formatString"];
+               $pld->file = [$this->reference, "formatFile"];
+
+               $pld->ref = $this->baseUrl->pathinfo(
+                       $this->baseUrl->mod($this->request->getRequestUrl()));
+
+               $pld->markup = function($page) use($pld) {
+                       return $this->reference->getFormatter()->markup($page, $pld);
+               };
+
+               $pld->refs = $this->reference;
+               $pld->baseUrl = $this->baseUrl;
+
                return $pld;
        }
-       
+
        /**
-        * Redirect to canononical url
-        * @param \http\Controller $ctl
+        * Redirect to canonical url
         * @param string $cnn
         */
-       private function serveCanonical($ctl, $cnn) {
-               $ctl->detachAll(Observer\View::class);
-               $ctl->getResponse()->setHeader("Location", $this->baseUrl->mod(["path" => $cnn]));
-               $ctl->getResponse()->setResponseCode(301);
+       private function serveCanonical(string $cnn) : void {
+               $this->response->setHeader("Location", $this->baseUrl->mod(["path" => $cnn]));
+               $this->response->setResponseCode(301);
+               if (is_resource($this->output)) {
+                       $this->response->send($this->output);
+               } else {
+                       $this->response->send();
+               }
        }
-       
+
        /**
         * Serve index.css
-        * @param \http\Controller $ctl
         */
-       private function serveStylesheet($ctl) {
-               $ctl->detachAll(Observer\View::class);
-               $ctl->getResponse()->setHeader("Content-Type", "text/css");
-               $ctl->getResponse()->setBody(new \http\Message\Body(fopen(ROOT."/public/index.css", "r")));
+       private function serveStylesheet() : void {
+               $this->response->setHeader("Content-Type", "text/css");
+               $this->response->setBody(new Body(\fopen(ROOT."/public/index.css", "r")));
+               if (is_resource($this->output)) {
+                       $this->response->send($this->output);
+               } else {
+                       $this->response->send();
+               }
        }
-       
+
        /**
         * Serve index.js
-        * @param \http\Controller $ctl
         */
-       private function serveJavascript($ctl) {
-               $ctl->detachAll(Observer\View::class);
-               $ctl->getResponse()->setHeader("Content-Type", "application/javascript");
-               $ctl->getResponse()->setBody(new \http\Message\Body(fopen(ROOT."/public/index.js", "r")));
+       private function serveJavascript() : void {
+               $this->response->setHeader("Content-Type", "application/javascript");
+               $this->response->setBody(new Body(\fopen(ROOT."/public/index.js", "r")));
+               if (is_resource($this->output)) {
+                       $this->response->send($this->output);
+               } else {
+                       $this->response->send();
+               }
+       }
+
+       /**
+        * Server a PHP stub
+        * @throws Exception
+        *
+        */
+       private function serveStub() : void {
+               $name = $this->request->getQuery("ref", "s");
+               $repo = $this->reference->getRepoForEntry($name);
+               if (!$repo->hasStub($stub)) {
+                       throw new Exception(404, "Stub not found");
+               }
+               $this->response->setHeader("Content-Type", "application/x-php");
+               $this->response->setContentDisposition(["attachment" => ["filename" => "$name.stub.php"]]);
+               $this->response->setBody(new Body(\fopen($stub, "r")));
+               if (is_resource($this->output)) {
+                       $this->response->send($this->output);
+               } else {
+                       $this->response->send();
+               }
        }
-       
+
        /**
         * Serve a preset
-        * @param \http\Controller $ctl
-        * @param \stdClass $pld
-        * @throws \http\Controller\Exception
+        * @param object $pld
+        * @return true to continue serving the payload
+        * @throws Exception
         */
-       private function servePreset($ctl, $pld) {
+       private function servePreset(object $pld) : bool {
                switch ($pld->ref) {
                case "AUTHORS":
                case "LICENSE":
                case "VERSION":
                        $pld->text = file_get_contents(ROOT."/$pld->ref");
-                       break;
+                       return true;
                case "index.css":
-                       $this->serveStylesheet($ctl);
+                       $this->serveStylesheet();
                        break;
                case "index.js":
-                       $this->serveJavascript($ctl);
+                       $this->serveJavascript();
+                       break;
+               case "stub":
+                       $this->serveStub();
                        break;
                default:
-                       throw new \http\Controller\Exception(404, "$pld->ref not found");
+                       throw new Exception(404, "$pld->ref not found");
                }
+               return false;
        }
-       
+
        /**
-        * Implements Observer
-        * @param \SplSubject $ctl \http\Controller
+        * Serve a payload
         */
-       public function update(\SplSubject $ctl) {
-               /* @var http\Controller $ctl */
-               $pld = $this->createPayload($ctl);
-               $ctl[Observer\View::class] = function() use($pld) {
-                       return $pld;
-               };
-               
-               if (!isset($pld->ref) || !strlen($pld->ref)) {
-                       /* front page */
-                       return;
+       private function serve() : void {
+               extract((array) func_get_arg(0));
+               include ROOT."/views/layout.phtml";
+               $this->response->addHeader("Link", "<" . $this->baseUrl->path . "index.css>; rel=preload; as=style");
+               $this->response->addHeader("Link", "<" . $this->baseUrl->path . "index.js>; rel=preload; as=script");
+               if (isset($exception) && $exception->getCode()) {
+                       $this->response->setResponseCode($exception->getCode());
                }
-               
-               $cnn = null;
-               if (($repo = $this->reference->getRepoForEntry($pld->ref, $cnn))) {
-                       if (strlen($cnn)) {
-                               /* redirect */
-                               $this->serveCanonical($ctl, $cnn);
-                       } else {
-                               /* direct match */
-                               $pld->entry = $repo->getEntry($pld->ref);
-                       }
+               if (is_resource($this->output)) {
+                       $this->response->send($this->output);
                } else {
-                       $this->servePreset($ctl, $pld);
+                       $this->response->send();
                }
        }
 
-}
\ No newline at end of file
+       /**
+        * Request handler
+        */
+       public function handle() : void {
+               try {
+                       $pld = $this->createPayload();
+
+                       if (isset($pld->ref) && strlen($pld->ref)) {
+                               $cnn = null;
+                               if (($repo = $this->reference->getRepoForEntry($pld->ref, $cnn))) {
+                                       if (isset($cnn) && strlen($cnn)) {
+                                               /* redirect */
+                                               $this->serveCanonical($cnn);
+                                               return;
+                                       } else {
+                                               /* direct match */
+                                               $pld->entry = $repo->getEntry($pld->ref);
+                                       }
+                               } elseif (!$this->servePreset($pld)) {
+                                       return;
+                               }
+                       }
+
+               } catch (\Exception $e) {
+                       $pld->exception = $e;
+               }
+
+               $this->serve($pld);
+       }
+}