Add upload of user MapFile

config/routes.php

@@ -46,6 +46,8 @@
     $app->get('/mapfile', App\Handler\MapFileHandler::class, 'mapfile');
     $app->get('/mapfile/edit', App\Handler\MapFileHandler::class, 'mapfile.edit');
 
+    $app->route('/open', App\Handler\OpenHandler::class, ['get', 'post'], 'open');
+
     $app->put('/api/map', App\Handler\API\MapHandler::class, 'api.map');
     $app->route('/api/layer/{id:\d+}', App\Handler\API\LayerHandler::class, ['put', 'delete'], 'api.layer');
     $app->route('/api/layer/{layer:\d+}/class/{id:\d+}', App\Handler\API\ClassHandler::class, ['put', 'delete'], 'api.class');

src/App/ConfigProvider.php

@@ -44,6 +44,7 @@ public function getDependencies() : array
                 Handler\LayerHandler::class   => Handler\LayerHandlerFactory::class,
                 Handler\MapHandler::class     => Handler\MapHandlerFactory::class,
                 Handler\MapFileHandler::class => Handler\MapFileHandlerFactory::class,
+                Handler\OpenHandler::class    => Handler\OpenHandlerFactory::class,
                 Handler\StyleHandler::class   => Handler\StyleHandlerFactory::class,
             ],
         ];

src/App/Handler/OpenHandler.php

@@ -0,0 +1,79 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Handler;
+
+use Exception;
+use MapFile\Parser\Map as MapParser;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Zend\Diactoros\Response\HtmlResponse;
+use Zend\Diactoros\Response\RedirectResponse;
+use Zend\Diactoros\UploadedFile;
+use Zend\Expressive\Router;
+use Zend\Expressive\Session\SessionMiddleware;
+use Zend\Expressive\Template;
+
+class OpenHandler implements RequestHandlerInterface
+{
+    private $containerName;
+
+    private $router;
+
+    private $template;
+
+    public function __construct(
+        Router\RouterInterface $router,
+        Template\TemplateRendererInterface $template = null,
+        string $containerName
+    ) {
+        $this->router = $router;
+        $this->template = $template;
+        $this->containerName = $containerName;
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        $session = $request->getAttribute(SessionMiddleware::SESSION_ATTRIBUTE);
+
+        $method = $request->getMethod();
+
+        switch ($method) {
+            case 'POST':
+                try {
+                    $files = $request->getUploadedFiles();
+
+                    if (isset($files['mapfile'])) {
+                        if ($files['mapfile']->getError() === UPLOAD_ERR_OK) {
+                            $temp = tempnam(sys_get_temp_dir(), 'mapfile-');
+
+                            $files['mapfile']->moveTo($temp);
+
+                            $map = (new MapParser($temp))->parse();
+
+                            $session->set('map', serialize($map));
+
+                            return new RedirectResponse($this->router->generateUri('map'));
+                        } else {
+                            throw new Exception(UploadedFile::ERROR_MESSAGES[$files['mapfile']->getError()]);
+                        }
+                    } else {
+                        throw new Exception(UploadedFile::ERROR_MESSAGES[UPLOAD_ERR_NO_FILE]);
+                    }
+                } catch (Exception $e) {
+                    $data = [
+                        'error' => $e->getMessage(),
+                    ];
+
+                    return new HtmlResponse($this->template->render('app::open', $data));
+                }
+                break;
+
+            case 'GET':
+                return new HtmlResponse($this->template->render('app::open', []));
+                break;
+        }
+    }
+}

src/App/Handler/OpenHandlerFactory.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Handler;
+
+use Psr\Container\ContainerInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Zend\Expressive\Router\RouterInterface;
+use Zend\Expressive\Template\TemplateRendererInterface;
+
+class OpenHandlerFactory
+{
+    public function __invoke(ContainerInterface $container): RequestHandlerInterface
+    {
+        $router = $container->get(RouterInterface::class);
+        $template = $container->get(TemplateRendererInterface::class);
+
+        return new OpenHandler($router, $template, get_class($container));
+    }
+}

templates/app/open.html.twig

@@ -0,0 +1,45 @@
+{% extends '@layout/default.html.twig' %}
+
+{% block title %}Load your MapFile{% endblock %}
+
+{% block content %}
+
+<h1>Load your MapFile</h1>
+<hr>
+
+<p>
+    The application will parse your MapFile to allow you to modify it.<br>
+    <br>
+    The <a href="https://github.com/jbelien/MapFile-PHP-Library" target="_blank"><em>MapFile PHP Library</em></a> used
+    to parse your file supports <a href="https://mapserver.org/mapfile/" target="_blank">MapServer 7.2 configuration</a>.
+    If your MapFile is written for a previous version of MapServer, some parameters could be deprecated.<br>
+    You can comment (with <kbd>#</kbd>) or fix the deprecated parameter.<br>
+    You can also <a href="https://github.com/jbelien/MapFile-PHP-Library/issues" target="_blank">contact me</a> to add
+    support for deprecated (or unsupported) parameters.
+</p>
+<hr>
+
+<form method="POST" action="{{ path('open') }}" enctype="multipart/form-data">
+    <div class="row">
+        <div class="col">
+            <div class="form-group">
+                <input type="file" class="form-control-file" id="open-mapfile" name="mapfile" accept=".map" required>
+            </div>
+        </div>
+        <div class="col-md-3 col-sm-4">
+            <button type="submit" class="btn btn-primary btn-block">
+                <i class="fas fa-file-upload"></i>
+                Upload
+            </button>
+        </div>
+    </div>
+</form>
+<hr>
+
+{% if error is defined %}
+<div class="alert alert-warning">
+    {{ error }}
+</div>
+{% endif %}
+
+{% endblock %}

templates/layout/default.html.twig

@@ -39,6 +39,12 @@
                             MapFile
                         </a>
                     </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="{{ path('open') }}">
+                            <i class="fas fa-upload"></i>
+                            Load
+                        </a>
+                    </li>
                 </ul>
                 <ul class="navbar-nav ml-auto">
                     <li class="nav-item">