Support zero-byte file uploads (#5459)

Author: DaneEveritt

resources/scripts/components/server/files/UploadButton.tsx

@@ -64,8 +64,8 @@ export default ({ className }: WithClassname) => {
     const onFileSubmission = (files: FileList) => {
         clearAndAddHttpError();
         const list = Array.from(files);
-        if (list.some((file) => !file.size || (!file.type && file.size === 4096))) {
-            return addError('Folder uploads are not supported at this time.', 'Error');
+        if (list.some((file) => !file.type && (!file.size || file.size === 4096))) {
+            return addError('Folder uploads are not supported.', 'Error');
         }
 
         const uploads = list.map((file) => {

tests/Integration/Api/Client/Server/Files/CompressFilesTest.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Pterodactyl\Tests\Integration\Api\Client\Server\Files;
+
+use Mockery\MockInterface;
+use Pterodactyl\Models\Permission;
+use Pterodactyl\Repositories\Wings\DaemonFileRepository;
+use Pterodactyl\Tests\Integration\Api\Client\ClientApiIntegrationTestCase;
+
+class CompressFilesTest extends ClientApiIntegrationTestCase
+{
+    public function testEndpointRequiresAuthorization(): void
+    {
+        [$user, $server] = $this->generateTestAccount([Permission::ACTION_CONTROL_CONSOLE]);
+
+        $this->postJson($this->link($server, '/files/compress'))->assertUnauthorized();
+
+        $this->actingAs($user)
+            ->postJson($this->link($server, '/files/compress'))
+            ->assertForbidden();
+    }
+
+    public function testEndpointTriggersWingsCall(): void
+    {
+        [$user, $server] = $this->generateTestAccount([Permission::ACTION_FILE_ARCHIVE]);
+
+        $this->mock(DaemonFileRepository::class, function (MockInterface $mock) {
+            $mock->expects('setServer->compressFiles')->with('/', ['test.txt'])->andReturn([
+                'name' => 'test.tar.gz',
+                'mime' => 'application/gzip',
+            ]);
+        });
+
+        $this->actingAs($user)
+            ->postJson($endpoint = $this->link($server, '/files/compress'), [])
+            ->assertUnprocessable()
+            ->assertJsonPath('errors.0.meta', ['source_field' => 'files', 'rule' => 'required']);
+
+        $this->postJson($endpoint, ['root' => '/', 'files' => ['test.txt']])
+            ->assertOk()
+            ->assertJsonPath('object', 'file_object')
+            ->assertJsonPath('attributes.name', 'test.tar.gz')
+            ->assertJsonPath('attributes.mimetype', 'application/gzip');
+    }
+}