implement local directory browser

src/Entity/Browser/Container/Page/Content.php

@@ -103,17 +103,51 @@ class Content
         {
             case 'file':
 
-                if (file_exists($address->getPath()) && is_readable($address->getPath()))
+                switch (true)
                 {
-                    switch ($address->getPath())
+                    // Try directory
+                    case (
+                        $list = \Yggverse\Yoda\Model\Filesystem::getList(
+                            $address->getPath()
+                        )
+                    ):
+
+                        $map = [];
+
+                        foreach ($list as $item)
                         {
-                        case is_dir($address->getPath()):
+                            $map[] = trim(
+                                sprintf(
+                                    '=> file://%s %s',
+                                    $item['path'],
+                                    $item['name'] . (
+                                        $item['file'] ? null : '/'
+                                    )
+                                )
+                            );
+                        }
 
-                            // @TODO build fs listing
+                        $this->data->setGemtext(
+                            implode(
+                                PHP_EOL,
+                                $map
+                            ) . PHP_EOL
+                        );
+
+                        $this->page->title->set(
+                            basename(
+                                $address->getPath()
+                            ),
+                            'localhost'
+                        );
 
                     break;
 
-                        case str_ends_with($address->getPath(), '.gmi'):
+                    // Try open file by extension supported
+                    case str_ends_with(
+                        $address->getPath(),
+                        '.gmi'
+                    ):
 
                         $title = null;
 
@@ -127,34 +161,32 @@ class Content
                         if ($title) // detect title by document h1
                         {
                             $this->page->title->set(
-                                    $title
+                                $title,
+                                'localhost'
                             );
                         }
 
-                        break;
-
-                        default:
-
+                        else
+                        {
                             $this->page->title->set(
-                                'Oops!',
-                                'file extension not supported'
-                            );
-
-                            $this->data->setPlain(
-                                'File extension not supported'
+                                basename(
+                                    $address->getPath()
+                                ),
+                                'localhost'
                             );
                         }
-                }
 
-                else
-                {
+                    break;
+
+                    default:
+
                         $this->page->title->set(
                             'Failure',
                             'resource not found or not readable'
                         );
 
                         $this->data->setPlain(
-                        'Could not open file'
+                            'Could not open location'
                         );
                 }
 

src/Model/Filesystem.php

@@ -81,6 +81,112 @@ class Filesystem
         return $this->_base . $filename;
     }
 
+
+    public static function getList(
+        ?string $dirname,
+         string $sort   = 'name',
+         int    $order  = SORT_ASC,
+         int    $method = SORT_STRING | SORT_NATURAL | SORT_FLAG_CASE
+    ): ?array
+    {
+        // Convert to realpath with ending slash
+        if (!$realpath = self::_getRealpath($dirname))
+        {
+            return null;
+        }
+
+        // Make sure requested path is directory
+        if (!is_dir($realpath))
+        {
+            return null;
+        }
+
+        // Begin list builder
+        $directories = [];
+        $files = [];
+
+        foreach ((array) scandir($realpath) as $name)
+        {
+            // Skip system locations
+            if (empty($name) || $name == '.')
+            {
+                continue;
+            }
+
+            // Try to build destination path
+            if (!$path = self::_getRealpath($realpath . $name))
+            {
+                continue;
+            }
+
+            // Context
+            switch (true)
+            {
+                case is_dir($path):
+
+                    $directories[] =
+                    [
+                        'file' => false,
+                        'path' => $path,
+                        'name' => $name,
+                        'link' => urlencode(
+                            $name
+                        ),
+                        'time' => filemtime(
+                            $path
+                        )
+                    ];
+
+                break;
+
+                case is_file($path):
+
+                    $files[] =
+                    [
+                        'file' => true,
+                        'path' => $path,
+                        'name' => $name,
+                        'link' => urlencode(
+                            $name
+                        ),
+                        'time' => filemtime(
+                            $path
+                        )
+                    ];
+
+                break;
+            }
+        }
+
+        // Sort order
+        array_multisort(
+            array_column(
+                $directories,
+                $sort
+            ),
+            $order,
+            $method,
+            $directories
+        );
+
+        // Sort files by name ASC
+        array_multisort(
+            array_column(
+                $directories,
+                $sort
+            ),
+            $order,
+            $method,
+            $directories
+        );
+
+        // Merge list
+        return array_merge(
+            $directories,
+            $files
+        );
+    }
+
     private static function _fixDirectorySeparators(
         string $path,
         string $separator = DIRECTORY_SEPARATOR
@@ -95,4 +201,30 @@ class Filesystem
             $path
         );
     }
+
+    // PHP::realpath extension appending slash to dir paths
+    private static function _getRealpath(
+        ?string $path
+    ): ?string
+    {
+        if (empty($path))
+        {
+            return null;
+        }
+
+        if (!$realpath = realpath($path))
+        {
+            return null;
+        }
+
+        if (is_dir($realpath))
+        {
+            $realpath = rtrim(
+                $realpath,
+                DIRECTORY_SEPARATOR
+            ) . DIRECTORY_SEPARATOR;
+        }
+
+        return $realpath;
+    }
 }