Improve file storage handling

app/Http/Controllers/Api/ApplicationsController.php

@@ -5294,11 +5294,16 @@ class ApplicationsController extends Controller
                 ], 422);
             }
 
-            $fsPath = str($request->fs_path)->trim()->start('/')->value();
-            $mountPath = str($request->mount_path)->trim()->start('/')->value();
-
-            validateShellSafePath($fsPath, 'storage source path');
-            validateShellSafePath($mountPath, 'storage destination path');
+            try {
+                $fsPath = confinePathToBase(application_configuration_dir().'/'.$application->uuid, $request->fs_path, 'storage source path');
+                $mountPath = validateFileMountPath($request->mount_path, 'storage destination path');
+                LocalFileVolume::assertRemotePathIsConfined($application->workdir(), $fsPath, $application->destination->server);
+            } catch (\Throwable $e) {
+                return response()->json([
+                    'message' => 'Validation failed.',
+                    'errors' => ['fs_path' => $e->getMessage()],
+                ], 422);
+            }
 
             $storage = LocalFileVolume::create([
                 'fs_path' => $fsPath,

app/Http/Controllers/Api/DatabasesController.php

@@ -4264,11 +4264,16 @@ class DatabasesController extends Controller
                 ], 422);
             }
 
-            $fsPath = str($request->fs_path)->trim()->start('/')->value();
-            $mountPath = str($request->mount_path)->trim()->start('/')->value();
-
-            validateShellSafePath($fsPath, 'storage source path');
-            validateShellSafePath($mountPath, 'storage destination path');
+            try {
+                $fsPath = confinePathToBase(database_configuration_dir().'/'.$database->uuid, $request->fs_path, 'storage source path');
+                $mountPath = validateFileMountPath($request->mount_path, 'storage destination path');
+                LocalFileVolume::assertRemotePathIsConfined($database->workdir(), $fsPath, $database->destination->server);
+            } catch (\Throwable $e) {
+                return response()->json([
+                    'message' => 'Validation failed.',
+                    'errors' => ['fs_path' => $e->getMessage()],
+                ], 422);
+            }
 
             $storage = LocalFileVolume::create([
                 'fs_path' => $fsPath,

app/Http/Controllers/Api/ServicesController.php

@@ -2551,11 +2551,16 @@ class ServicesController extends Controller
                 ], 422);
             }
 
-            $fsPath = str($request->fs_path)->trim()->start('/')->value();
-            $mountPath = str($request->mount_path)->trim()->start('/')->value();
-
-            validateShellSafePath($fsPath, 'storage source path');
-            validateShellSafePath($mountPath, 'storage destination path');
+            try {
+                $fsPath = confinePathToBase(service_configuration_dir().'/'.$service->uuid, $request->fs_path, 'storage source path');
+                $mountPath = validateFileMountPath($request->mount_path, 'storage destination path');
+                LocalFileVolume::assertRemotePathIsConfined($service->workdir(), $fsPath, $service->server);
+            } catch (\Throwable $e) {
+                return response()->json([
+                    'message' => 'Validation failed.',
+                    'errors' => ['fs_path' => $e->getMessage()],
+                ], 422);
+            }
 
             $storage = LocalFileVolume::create([
                 'fs_path' => $fsPath,

app/Livewire/Project/Service/Storage.php

@@ -312,14 +312,17 @@ class Storage extends Component
                 'file_storage_directory_destination' => 'required|string',
             ]);
 
-            $this->file_storage_directory_source = trim($this->file_storage_directory_source);
-            $this->file_storage_directory_source = str($this->file_storage_directory_source)->start('/')->value();
-            $this->file_storage_directory_destination = trim($this->file_storage_directory_destination);
-            $this->file_storage_directory_destination = str($this->file_storage_directory_destination)->start('/')->value();
-
-            // Validate paths to prevent command injection
-            validateShellSafePath($this->file_storage_directory_source, 'storage source path');
-            validateShellSafePath($this->file_storage_directory_destination, 'storage destination path');
+            $this->file_storage_directory_source = confinePathToBase(
+                $this->fileStorageHostPath(),
+                $this->file_storage_directory_source,
+                'storage source path'
+            );
+            $this->file_storage_directory_destination = validateFileMountPath(
+                $this->file_storage_directory_destination,
+                'storage destination path'
+            );
+            $server = $this->resource->service?->server ?? $this->resource->destination->server;
+            LocalFileVolume::assertRemotePathIsConfined($this->fileStorageHostPath(), $this->file_storage_directory_source, $server);
 
             LocalFileVolume::create([
                 'fs_path' => $this->file_storage_directory_source,

app/Models/LocalFileVolume.php

@@ -125,6 +125,11 @@ class LocalFileVolume extends BaseModel
             $path = $workdir.$path;
         }
 
+        if (! $this->isAdminControlledComposeMount()) {
+            $path = str(confinePathToBase($workdir, $path->value(), 'storage path'));
+            $this->assertRemotePathIsConfined($workdir, $path->value(), $server);
+        }
+
         // Validate and escape path to prevent command injection
         validateShellSafePath($path, 'storage path');
         $escapedPath = escapeshellarg($path);
@@ -204,6 +209,11 @@ class LocalFileVolume extends BaseModel
             $path = $workdir.$path;
         }
 
+        if (! $this->isAdminControlledComposeMount()) {
+            $path = str(confinePathToBase($workdir, $path->value(), 'storage path'));
+            $this->assertRemotePathIsConfined($workdir, $path->value(), $server);
+        }
+
         // Validate and escape path to prevent command injection
         validateShellSafePath($path, 'storage path');
         $escapedPath = escapeshellarg($path);
@@ -264,6 +274,11 @@ class LocalFileVolume extends BaseModel
             $path = $workdir.$path;
         }
 
+        if (! $this->isAdminControlledComposeMount()) {
+            $path = str(confinePathToBase($workdir, $path->value(), 'storage path'));
+            $this->assertRemotePathIsConfined($workdir, $path->value(), $server);
+        }
+
         // Validate and escape resolved path (may differ from fs_path if relative)
         validateShellSafePath($path, 'storage path');
         $escapedPath = escapeshellarg($path);
@@ -315,6 +330,64 @@ class LocalFileVolume extends BaseModel
         return instant_remote_process($commands, $server);
     }
 
+    /**
+     * Reject symlink escapes immediately before a managed path is used remotely.
+     */
+    public static function assertRemotePathIsConfined(string $baseDirectory, string $path, Server $server): void
+    {
+        $escapedBase = escapeshellarg($baseDirectory);
+        $escapedPath = escapeshellarg($path);
+        $result = instant_remote_process([
+            "base=\$(realpath -m -- {$escapedBase}) && target=\$(realpath -m -- {$escapedPath}) && case \"\$target\" in \"\$base\"|\"\$base\"/*) echo OK ;; *) echo NOK ;; esac",
+        ], $server, false);
+
+        if (trim((string) $result) !== 'OK') {
+            throw new \RuntimeException('Invalid storage path: resolved path must stay inside the resource configuration directory.');
+        }
+    }
+
+    /**
+     * Raw Compose bind mounts keep administrator-selected host path semantics.
+     */
+    protected function isAdminControlledComposeMount(): bool
+    {
+        $compose = data_get($this->resource, 'docker_compose_raw')
+            ?? data_get($this->resource, 'service.docker_compose_raw');
+
+        if (! is_string($compose) || $compose === '') {
+            return false;
+        }
+
+        try {
+            $services = data_get(Yaml::parse($compose), 'services', []);
+            foreach ($services as $service) {
+                foreach (data_get($service, 'volumes', []) as $volume) {
+                    if (is_string($volume)) {
+                        $parsed = parseDockerVolumeString($volume);
+                        $source = data_get($parsed, 'source');
+                        $target = data_get($parsed, 'target');
+                    } else {
+                        $source = data_get($volume, 'source');
+                        $target = data_get($volume, 'target');
+                    }
+
+                    if ((string) $target !== $this->mount_path || ! sourceIsLocal(str((string) $source))) {
+                        continue;
+                    }
+
+                    $resolvedSource = replaceLocalSource(str((string) $source), str($this->resource->workdir()));
+                    if (normalizeUnixPath($resolvedSource->value()) === normalizeUnixPath($this->fs_path)) {
+                        return true;
+                    }
+                }
+            }
+        } catch (\Throwable) {
+            return false;
+        }
+
+        return false;
+    }
+
     // Accessor for convenient access
     protected function plainMountPath(): Attribute
     {

tests/Feature/FileStorageMountPathTest.php

@@ -17,7 +17,9 @@ use App\Models\Team;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Facades\Bus;
+use Illuminate\Support\Facades\Crypt;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Process;
 use Illuminate\Support\Str;
 use Livewire\Livewire;
 
@@ -35,7 +37,7 @@ beforeEach(function () {
     $keyId = DB::table('private_keys')->insertGetId([
         'uuid' => (string) Str::uuid(),
         'name' => 'Test Key',
-        'private_key' => 'test-key',
+        'private_key' => Crypt::encryptString('test-key'),
         'team_id' => $this->team->id,
         'created_at' => now(),
         'updated_at' => now(),
@@ -45,6 +47,7 @@ beforeEach(function () {
         'team_id' => $this->team->id,
         'private_key_id' => $keyId,
     ]);
+    Process::fake(fn () => Process::result(output: 'OK'));
 
     StandaloneDocker::withoutEvents(function () {
         $this->destination = StandaloneDocker::firstOrCreate(
@@ -84,6 +87,76 @@ test('livewire file storage rejects parent segments and does not create a local
     expect(LocalFileVolume::query()->count())->toBe(0);
 });
 
+test('livewire directory storage rejects a server absolute path and has no side effects', function () {
+    Livewire::test(Storage::class, ['resource' => $this->application])
+        ->set('file_storage_directory_source', '/root/.ssh')
+        ->set('file_storage_directory_destination', '/data')
+        ->call('submitFileStorageDirectory')
+        ->assertDispatched('error');
+
+    expect(LocalFileVolume::query()->count())->toBe(0);
+    Bus::assertNotDispatched(ServerStorageSaveJob::class);
+});
+
+test('livewire directory storage accepts a path inside the application root', function () {
+    $source = application_configuration_dir().'/'.$this->application->uuid.'/data/new';
+
+    $component = Livewire::test(Storage::class, ['resource' => $this->application])
+        ->set('file_storage_directory_source', $source)
+        ->set('file_storage_directory_destination', '/data')
+        ->call('submitFileStorageDirectory');
+    $component->assertDispatched('success');
+
+    expect(LocalFileVolume::query()->sole()->fs_path)->toBe($source);
+});
+
+test('livewire directory storage rejects a remote symlink escape without side effects', function () {
+    Process::fake(fn () => Process::result(output: 'NOK'));
+
+    Livewire::test(Storage::class, ['resource' => $this->application])
+        ->set('file_storage_directory_source', $this->application->workdir().'/linked/outside')
+        ->set('file_storage_directory_destination', '/data')
+        ->call('submitFileStorageDirectory')
+        ->assertDispatched('error');
+
+    expect(LocalFileVolume::query()->count())->toBe(0);
+    Bus::assertNotDispatched(ServerStorageSaveJob::class);
+});
+
+test('normal team members cannot create directory storage', function () {
+    $member = User::factory()->create();
+    $member->teams()->attach($this->team, ['role' => 'member']);
+    $this->actingAs($member);
+    session(['currentTeam' => $this->team]);
+
+    Livewire::test(Storage::class, ['resource' => $this->application])
+        ->set('file_storage_directory_source', application_configuration_dir().'/'.$this->application->uuid.'/data')
+        ->set('file_storage_directory_destination', '/data')
+        ->call('submitFileStorageDirectory')
+        ->assertDispatched('error');
+
+    expect(LocalFileVolume::query()->count())->toBe(0);
+});
+
+test('an administrator cannot create storage on a cross-team resource', function () {
+    $otherTeam = Team::factory()->create();
+    $otherProject = Project::factory()->create(['team_id' => $otherTeam->id]);
+    $otherEnvironment = Environment::factory()->create(['project_id' => $otherProject->id]);
+    $otherApplication = Application::factory()->create([
+        'environment_id' => $otherEnvironment->id,
+        'destination_id' => $this->destination->id,
+        'destination_type' => $this->destination->getMorphClass(),
+    ]);
+
+    Livewire::test(Storage::class, ['resource' => $otherApplication])
+        ->set('file_storage_directory_source', application_configuration_dir().'/'.$otherApplication->uuid.'/data')
+        ->set('file_storage_directory_destination', '/data')
+        ->call('submitFileStorageDirectory')
+        ->assertDispatched('error');
+
+    expect(LocalFileVolume::query()->count())->toBe(0);
+});
+
 test('file mount modal shows the calculated host file path above the destination input', function () {
     Livewire::test(Storage::class, ['resource' => $this->application])
         ->assertSeeText('Create a managed file on the host and mount it inside the container.')

tests/Feature/StorageApiTest.php

@@ -16,6 +16,9 @@ use App\Models\Team;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Facades\Bus;
+use Illuminate\Support\Facades\Crypt;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Process;
 use Illuminate\Support\Str;
 
 uses(RefreshDatabase::class);
@@ -39,6 +42,16 @@ beforeEach(function () {
     $this->bearerToken = $token->getKey().'|'.$plainTextToken;
 
     $this->server = Server::factory()->create(['team_id' => $this->team->id]);
+    $keyId = DB::table('private_keys')->insertGetId([
+        'uuid' => (string) Str::uuid(),
+        'name' => 'Storage Test Key',
+        'private_key' => Crypt::encryptString('test-key'),
+        'team_id' => $this->team->id,
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+    $this->server->update(['private_key_id' => $keyId]);
+    Process::fake(fn () => Process::result(output: 'OK'));
     $this->destination = StandaloneDocker::where('server_id', $this->server->id)->first();
     $this->project = Project::factory()->create(['team_id' => $this->team->id]);
     $this->environment = Environment::factory()->create(['project_id' => $this->project->id]);
@@ -89,6 +102,7 @@ function createTestServiceApplication($context): array
 {
     $service = Service::factory()->create([
         'environment_id' => $context->environment->id,
+        'server_id' => $context->server->id,
         'destination_id' => $context->destination->id,
         'destination_type' => $context->destination->getMorphClass(),
     ]);
@@ -170,6 +184,22 @@ describe('GET /api/v1/applications/{uuid}/storages', function () {
 });
 
 describe('POST /api/v1/applications/{uuid}/storages', function () {
+    test('rejects an application directory mount outside its managed root without side effects', function () {
+        $app = createTestApplication($this);
+
+        $this->withHeaders([
+            'Authorization' => 'Bearer '.$this->bearerToken,
+        ])->postJson("/api/v1/applications/{$app->uuid}/storages", [
+            'type' => 'file',
+            'is_directory' => true,
+            'fs_path' => '/root/.ssh/authorized_keys',
+            'mount_path' => '/data',
+        ])->assertUnprocessable();
+
+        expect($app->fileStorages()->exists())->toBeFalse();
+        Bus::assertNotDispatched(ServerStorageSaveJob::class);
+    });
+
     test('creates a persistent storage', function () {
         $app = createTestApplication($this);
 
@@ -655,6 +685,63 @@ test('rejects host paths when creating persistent storage through the API', func
     expect($resource->persistentStorages()->count())->toBe($storageCountBefore);
 })->with(['application', 'database', 'service']);
 
+test('rejects directory mounts outside each resource configuration root', function (string $resourceType) {
+    if ($resourceType === 'database') {
+        $resource = createTestDatabase($this);
+        $url = "/api/v1/databases/{$resource->uuid}/storages";
+        $payload = [];
+    } else {
+        [$service, $resource] = createTestServiceApplication($this);
+        $url = "/api/v1/services/{$service->uuid}/storages";
+        $payload = ['resource_uuid' => $resource->uuid];
+    }
+
+    $this->withHeaders([
+        'Authorization' => 'Bearer '.$this->bearerToken,
+    ])->postJson($url, [...$payload, ...[
+        'type' => 'file',
+        'is_directory' => true,
+        'fs_path' => '/etc/shadow',
+        'mount_path' => '/data',
+    ]])->assertUnprocessable();
+
+    expect($resource->fileStorages()->exists())->toBeFalse();
+    Bus::assertNotDispatched(ServerStorageSaveJob::class);
+})->with(['database', 'service']);
+
+test('rejects a directory mount through a remote symlink before creating storage', function (string $resourceType) {
+    if ($resourceType === 'application') {
+        $resource = createTestApplication($this);
+        $url = "/api/v1/applications/{$resource->uuid}/storages";
+        $payload = [];
+        $base = application_configuration_dir().'/'.$resource->uuid;
+    } elseif ($resourceType === 'database') {
+        $resource = createTestDatabase($this);
+        $url = "/api/v1/databases/{$resource->uuid}/storages";
+        $payload = [];
+        $base = database_configuration_dir().'/'.$resource->uuid;
+    } else {
+        [$service, $resource] = createTestServiceApplication($this);
+        $url = "/api/v1/services/{$service->uuid}/storages";
+        $payload = ['resource_uuid' => $resource->uuid];
+        $base = service_configuration_dir().'/'.$service->uuid;
+    }
+
+    Process::fake(fn () => Process::result(output: 'NOK'));
+
+    $response = $this->withHeaders(['Authorization' => 'Bearer '.$this->bearerToken])
+        ->postJson($url, [...$payload, ...[
+            'type' => 'file',
+            'is_directory' => true,
+            'fs_path' => $base.'/linked/outside',
+            'mount_path' => '/data',
+        ]]);
+    $response->assertUnprocessable();
+
+    expect($resource->fileStorages()->exists())->toBeFalse();
+    Bus::assertNotDispatched(ServerStorageSaveJob::class);
+})->with(['application', 'database', 'service']);
+
 test('rejects host paths when updating persistent storage through the API', function (string $resourceType) {
     if ($resourceType === 'application') {
         $resource = createTestApplication($this);

tests/Unit/FileStorageSecurityTest.php

@@ -204,7 +204,8 @@ test('confined path resolver rejects paths that escape the resource configuratio
 test('local file volume write sink keeps saved managed file paths for compatibility', function () {
     $source = file_get_contents(__DIR__.'/../../app/Models/LocalFileVolume.php');
 
-    expect($source)->not->toContain('confinePathToBase($workdir, $path->value(), \'storage path\')')
+    expect($source)->toContain('confinePathToBase($workdir, $path->value(), \'storage path\')')
+        ->and($source)->toContain('assertRemotePathIsConfined')
         ->and($source)->toContain('tee {$escapedPath}');
 });