Fix base64-encoded image files for asset creation; add test

Author: uberbrady

app/Http/Requests/StoreAssetRequest.php

@@ -26,6 +26,7 @@ public function authorize(): bool
 
     public function prepareForValidation(): void
     {
+        parent::prepareForValidation(); // call ImageUploadRequest thing
         // Guard against users passing in an array for company_id instead of an integer.
         // If the company_id is not an integer then we simply use what was
         // provided to be caught by model level validation later.

app/Http/Traits/ConvertsBase64ToFiles.php

@@ -2,6 +2,7 @@
 
 namespace App\Http\Traits;
 
+use Illuminate\Validation\ValidationException;
 use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
@@ -38,28 +39,22 @@ protected function prepareForValidation()
                 if (!$base64Contents) {
                     return;
                 }
-                
-                // autogenerate filenames
-                if ($filename == 'auto'){
-                    $header = explode(';', $base64Contents, 2)[0];
-                    // Grab the image type from the header while we're at it.
-                    $filename = $key . '.' . substr($header, strpos($header, '/')+1);
-                }
 
                 // Generate a temporary path to store the Base64 contents
                 $tempFilePath = tempnam(sys_get_temp_dir(), $filename);
 
-                // Store the contents using a stream, or by decoding manually
+                // Store the contents using a stream, or throw an Error (which doesn't do anything?)
                 if (Str::startsWith($base64Contents, 'data:') && count(explode(',', $base64Contents)) > 1) {
-                    $source = fopen($base64Contents, 'r');
+                    $source = fopen($base64Contents, 'r'); // PHP has special processing for "data:" URL's
                     $destination = fopen($tempFilePath, 'w');
 
                     stream_copy_to_stream($source, $destination);
 
                     fclose($source);
                     fclose($destination);
                 } else {
-                    file_put_contents($tempFilePath, base64_decode($base64Contents, true));
+                    // TODO - to get a better error message here, can we maybe do something with modifying the errorBag?
+                    throw new ValidationException("Need Base64 URL starting with 'data:'"); // This doesn't actually throw?
                 }
 
                 $uploadedFile = new UploadedFile($tempFilePath, $filename, null, null, true);

tests/Feature/Assets/Api/StoreAssetTest.php

@@ -11,6 +11,7 @@
 use App\Models\Supplier;
 use App\Models\User;
 use Illuminate\Support\Facades\Crypt;
+use Illuminate\Support\Facades\Storage;
 use Illuminate\Testing\Fluent\AssertableJson;
 use PHPUnit\Framework\Attributes\DataProvider;
 use Tests\TestCase;
@@ -831,4 +832,28 @@ public function testPermissionNeededToStoreEncryptedField()
         $asset = Asset::findOrFail($response['payload']['id']);
         $this->assertEquals('This is encrypted field', Crypt::decrypt($asset->{$field->db_column_name()}));
     }
+
+    public function testBase64AssetImages()
+    {
+        $status = Statuslabel::factory()->readyToDeploy()->create();
+        $model = AssetModel::factory()->create();
+        $superuser = User::factory()->superuser()->create();
+
+        $response = $this->actingAsForApi($superuser)
+            ->postJson(route('api.assets.store'), [
+                'model_id' => $model->id,
+                'status_id' => $status->id,
+                'asset_tag' => '1234',
+                'image' => 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAEsAQMAAADXeXeBAAAABlBMVEX+AAD///+KQee0AAAACXBIWXMAAAsSAAALEgHS3X78AAAAB3RJTUUH5QQbCAoNcoiTQAAAACZJREFUaN7twTEBAAAAwqD1T20JT6AAAAAAAAAAAAAAAAAAAICnATvEAAEnf54JAAAAAElFTkSuQmCC'
+            ])
+            ->assertStatusMessageIs('success')
+            ->assertOk()
+            ->json();
+
+        $asset = Asset::findOrFail($response['payload']['id']);
+        $this->assertEquals($asset->asset_tag, '1234');
+        $image_data = Storage::disk('public')->get(app('assets_upload_path') . e($asset->image));
+        //$this->assertEquals('3d67fb99a0b6926e350f7b71397525d7a6b936c1', sha1($image_data)); //this doesn't work because the image gets resized - use the resized hash instead
+        $this->assertEquals('db2e13ba04318c99058ca429d67777322f48566b', sha1($image_data));
+    }
 }