Implement QR code generation using bacon/bacon-qr-code library

Co-authored-by: anwarx4u <anwarx4u@gmail.com>

Author: cursoragent

README.md

@@ -25,7 +25,7 @@ $setup = MFA::setupTotp(auth()->user());
 // $setup['otpauth_url'] -> QR code; then verify
 $ok = MFA::verifyTotp(auth()->user(), '123456');
 
-// Generate QR code (base64 PNG) from existing TOTP
+// Generate QR code (base64 PNG) from existing TOTP (uses bacon/bacon-qr-code)
 $base64 = MFA::generateTotpQrCodeBase64(auth()->user(), issuer: 'MyApp');
 // <img src="$base64" />
 ```

composer.json

@@ -15,7 +15,8 @@
     "illuminate/database": "^12.0",
     "illuminate/mail": "^12.0",
     "illuminate/config": "^12.0",
-    "illuminate/console": "^12.0"
+    "illuminate/console": "^12.0",
+    "bacon/bacon-qr-code": "^2.0"
   },
   "autoload": {
     "psr-4": {

src/Support/QrCodeGenerator.php

@@ -2,29 +2,30 @@
 
 namespace CodingLibs\MFA\Support;
 
+use BaconQrCode\Renderer\Color\Rgb;
+use BaconQrCode\Renderer\Image\Png;
+use BaconQrCode\Renderer\Module\SquareModule;
+use BaconQrCode\Renderer\RendererStyle\Fill;
+use BaconQrCode\Renderer\RendererStyle\RendererStyle;
+use BaconQrCode\Writer;
+
 class QrCodeGenerator
 {
     public static function generateBase64Png(string $text, int $size = 200): string
     {
-        // Lightweight inline QR encoder using endroid/qr-code if available, else fallback to Google Charts
-        if (class_exists('Endroid\\QrCode\\QrCode')) {
-            return self::generateWithEndroid($text, $size);
-        }
-        return self::generateWithGoogleCharts($text, $size);
-    }
+        $renderer = new Png(
+            new RendererStyle(
+                $size,
+                0,
+                null,
+                null,
+                Fill::uniformColor(new Rgb(255, 255, 255), new Rgb(0, 0, 0)),
+                new SquareModule()
+            )
+        );
 
-    protected static function generateWithEndroid(string $text, int $size): string
-    {
-        $qrCode = new \Endroid\QrCode\QrCode($text);
-        $qrCode->setSize($size);
-        $pngData = $qrCode->writeString();
-        return 'data:image/png;base64,' . base64_encode($pngData);
-    }
-
-    protected static function generateWithGoogleCharts(string $text, int $size): string
-    {
-        $url = 'https://chart.googleapis.com/chart?cht=qr&chs=' . $size . 'x' . $size . '&chl=' . rawurlencode($text);
-        $pngData = @file_get_contents($url) ?: '';
+        $writer = new Writer($renderer);
+        $pngData = $writer->writeString($text);
         return 'data:image/png;base64,' . base64_encode($pngData);
     }
 }