Find binary files

composer.json

@@ -2,6 +2,7 @@
     "name": "mantas-done/subtitles",
     "description": "Subtitle converter and generator for PHP",
     "type": "library",
+    "license": "MIT",
     "minimum-stability": "dev",
     "autoload": {
         "psr-4": {

src/Code/Converters/BinaryFinder.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Done\Subtitles\Code\Converters;
+
+use Done\Subtitles\Code\Helpers;
+use Done\Subtitles\Code\UserException;
+
+class BinaryFinder implements ConverterContract
+{
+    public function canParseFileContent($file_content)
+    {
+        if (Helpers::strContains($file_content, "\x00")) {
+            throw new UserException('This file is binary file and it is probably not a caption file.');
+        }
+
+        return false;
+    }
+
+    public function fileContentToInternalFormat($file_content, $original_file_content)
+    {
+        // no code needed
+    }
+
+    public function internalFormatToFileContent(array $internal_format , array $options)
+    {
+        // no code needed
+    }
+}

src/Subtitles.php

@@ -3,6 +3,7 @@
 namespace Done\Subtitles;
 
 use Done\Subtitles\Code\Converters\AssConverter;
+use Done\Subtitles\Code\Converters\BinaryFinder;
 use Done\Subtitles\Code\Converters\CsvConverter;
 use Done\Subtitles\Code\Converters\DfxpConverter;
 use Done\Subtitles\Code\Converters\EbuStlConverter;
@@ -48,6 +49,7 @@ class Subtitles
         ['extension' => 'scc',  'format' => 'scc',              'name' => 'Scenarist',                  'class' => SccConverter::class],
         ['extension' => 'lrc',  'format' => 'lrc',              'name' => 'LyRiCs',                     'class' => LrcConverter::class],
         ['extension' => 'csv',  'format' => 'csv',              'name' => 'Coma Separated Values',      'class' => CsvConverter::class], // must be last from bottom
+        ['extension' => 'bin',  'format' => 'bin',              'name' => 'Binary',                     'class' => BinaryFinder::class], // must be the last one
         ['extension' => 'txt',  'format' => 'txt',              'name' => 'Plaintext',                  'class' => TxtConverter::class], // must be the last one
     ];