ZIP Import: Added upload handling

Split attachment service storage work out so it can be shared.

app/Exceptions/ZipValidationException.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace BookStack\Exceptions;
+
+class ZipValidationException extends \Exception
+{
+    public function __construct(
+        public array $errors
+    ) {
+        parent::__construct();
+    }
+}

app/Exports/Controllers/ImportController.php

@@ -2,16 +2,17 @@
 
 namespace BookStack\Exports\Controllers;
 
-use BookStack\Exports\Import;
-use BookStack\Exports\ZipExports\ZipExportReader;
-use BookStack\Exports\ZipExports\ZipExportValidator;
+use BookStack\Exceptions\ZipValidationException;
+use BookStack\Exports\ImportRepo;
 use BookStack\Http\Controller;
+use BookStack\Uploads\AttachmentService;
 use Illuminate\Http\Request;
 
 class ImportController extends Controller
 {
-    public function __construct()
-    {
+    public function __construct(
+        protected ImportRepo $imports,
+    ) {
         $this->middleware('can:content-import');
     }
 
@@ -27,35 +28,17 @@ class ImportController extends Controller
     public function upload(Request $request)
     {
         $this->validate($request, [
-            'file' => ['required', 'file']
+            'file' => ['required', ...AttachmentService::getFileValidationRules()]
         ]);
 
         $file = $request->file('file');
-        $zipPath = $file->getRealPath();
-
-        $errors = (new ZipExportValidator($zipPath))->validate();
-        if ($errors) {
-            session()->flash('validation_errors', $errors);
+        try {
+            $import = $this->imports->storeFromUpload($file);
+        } catch (ZipValidationException $exception) {
+            session()->flash('validation_errors', $exception->errors);
             return redirect('/import');
         }
 
-        $zipEntityInfo = (new ZipExportReader($zipPath))->getEntityInfo();
-        $import = new Import();
-        $import->name = $zipEntityInfo['name'];
-        $import->book_count = $zipEntityInfo['book_count'];
-        $import->chapter_count = $zipEntityInfo['chapter_count'];
-        $import->page_count = $zipEntityInfo['page_count'];
-        $import->created_by = user()->id;
-        $import->size = filesize($zipPath);
-        // TODO - Set path
-        // TODO - Save
-
-        // TODO - Split out attachment service to separate out core filesystem/disk stuff
-        //        To reuse for import handling
-
-        dd('passed');
-        // TODO - Upload to storage
-        // TODO - Store info/results for display:
-        // TODO - Send user to next import stage
+        return redirect("imports/{$import->id}");
     }
 }

app/Exports/ImportRepo.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace BookStack\Exports;
+
+use BookStack\Exceptions\ZipValidationException;
+use BookStack\Exports\ZipExports\ZipExportReader;
+use BookStack\Exports\ZipExports\ZipExportValidator;
+use BookStack\Uploads\FileStorage;
+use Symfony\Component\HttpFoundation\File\UploadedFile;
+
+class ImportRepo
+{
+    public function __construct(
+        protected FileStorage $storage,
+    ) {
+    }
+
+    public function storeFromUpload(UploadedFile $file): Import
+    {
+        $zipPath = $file->getRealPath();
+
+        $errors = (new ZipExportValidator($zipPath))->validate();
+        if ($errors) {
+            throw new ZipValidationException($errors);
+        }
+
+        $zipEntityInfo = (new ZipExportReader($zipPath))->getEntityInfo();
+        $import = new Import();
+        $import->name = $zipEntityInfo['name'];
+        $import->book_count = $zipEntityInfo['book_count'];
+        $import->chapter_count = $zipEntityInfo['chapter_count'];
+        $import->page_count = $zipEntityInfo['page_count'];
+        $import->created_by = user()->id;
+        $import->size = filesize($zipPath);
+
+        $path = $this->storage->uploadFile(
+            $file,
+            'uploads/files/imports/',
+            '',
+            'zip'
+        );
+
+        $import->path = $path;
+        $import->save();
+
+        return $import;
+    }
+}

app/Uploads/AttachmentService.php

@@ -4,59 +4,15 @@ namespace BookStack\Uploads;
 
 use BookStack\Exceptions\FileUploadException;
 use Exception;
-use Illuminate\Contracts\Filesystem\Filesystem as Storage;
-use Illuminate\Filesystem\FilesystemManager;
-use Illuminate\Support\Facades\Log;
-use Illuminate\Support\Str;
-use League\Flysystem\WhitespacePathNormalizer;
 use Symfony\Component\HttpFoundation\File\UploadedFile;
 
 class AttachmentService
 {
     public function __construct(
-        protected FilesystemManager $fileSystem
+        protected FileStorage $storage,
     ) {
     }
 
-    /**
-     * Get the storage that will be used for storing files.
-     */
-    protected function getStorageDisk(): Storage
-    {
-        return $this->fileSystem->disk($this->getStorageDiskName());
-    }
-
-    /**
-     * Get the name of the storage disk to use.
-     */
-    protected function getStorageDiskName(): string
-    {
-        $storageType = config('filesystems.attachments');
-
-        // Change to our secure-attachment disk if any of the local options
-        // are used to prevent escaping that location.
-        if ($storageType === 'local' || $storageType === 'local_secure' || $storageType === 'local_secure_restricted') {
-            $storageType = 'local_secure_attachments';
-        }
-
-        return $storageType;
-    }
-
-    /**
-     * Change the originally provided path to fit any disk-specific requirements.
-     * This also ensures the path is kept to the expected root folders.
-     */
-    protected function adjustPathForStorageDisk(string $path): string
-    {
-        $path = (new WhitespacePathNormalizer())->normalizePath(str_replace('uploads/files/', '', $path));
-
-        if ($this->getStorageDiskName() === 'local_secure_attachments') {
-            return $path;
-        }
-
-        return 'uploads/files/' . $path;
-    }
-
     /**
      * Stream an attachment from storage.
      *
@@ -64,7 +20,7 @@ class AttachmentService
      */
     public function streamAttachmentFromStorage(Attachment $attachment)
     {
-        return $this->getStorageDisk()->readStream($this->adjustPathForStorageDisk($attachment->path));
+        return $this->storage->getReadStream($attachment->path);
     }
 
     /**
@@ -72,7 +28,7 @@ class AttachmentService
      */
     public function getAttachmentFileSize(Attachment $attachment): int
     {
-        return $this->getStorageDisk()->size($this->adjustPathForStorageDisk($attachment->path));
+        return $this->storage->getSize($attachment->path);
     }
 
     /**
@@ -195,15 +151,9 @@ class AttachmentService
      * Delete a file from the filesystem it sits on.
      * Cleans any empty leftover folders.
      */
-    protected function deleteFileInStorage(Attachment $attachment)
+    protected function deleteFileInStorage(Attachment $attachment): void
     {
-        $storage = $this->getStorageDisk();
-        $dirPath = $this->adjustPathForStorageDisk(dirname($attachment->path));
-
-        $storage->delete($this->adjustPathForStorageDisk($attachment->path));
-        if (count($storage->allFiles($dirPath)) === 0) {
-            $storage->deleteDirectory($dirPath);
-        }
+        $this->storage->delete($attachment->path);
     }
 
     /**
@@ -213,32 +163,20 @@ class AttachmentService
      */
     protected function putFileInStorage(UploadedFile $uploadedFile): string
     {
-        $storage = $this->getStorageDisk();
         $basePath = 'uploads/files/' . date('Y-m-M') . '/';
 
-        $uploadFileName = Str::random(16) . '-' . $uploadedFile->getClientOriginalExtension();
-        while ($storage->exists($this->adjustPathForStorageDisk($basePath . $uploadFileName))) {
-            $uploadFileName = Str::random(3) . $uploadFileName;
-        }
-
-        $attachmentStream = fopen($uploadedFile->getRealPath(), 'r');
-        $attachmentPath = $basePath . $uploadFileName;
-
-        try {
-            $storage->writeStream($this->adjustPathForStorageDisk($attachmentPath), $attachmentStream);
-        } catch (Exception $e) {
-            Log::error('Error when attempting file upload:' . $e->getMessage());
-
-            throw new FileUploadException(trans('errors.path_not_writable', ['filePath' => $attachmentPath]));
-        }
-
-        return $attachmentPath;
+        return $this->storage->uploadFile(
+            $uploadedFile,
+            $basePath,
+            $uploadedFile->getClientOriginalExtension(),
+            ''
+        );
     }
 
     /**
      * Get the file validation rules for attachments.
      */
-    public function getFileValidationRules(): array
+    public static function getFileValidationRules(): array
     {
         return ['file', 'max:' . (config('app.upload_limit') * 1000)];
     }

app/Uploads/FileStorage.php

@@ -0,0 +1,111 @@
+<?php
+
+namespace BookStack\Uploads;
+
+use BookStack\Exceptions\FileUploadException;
+use Exception;
+use Illuminate\Contracts\Filesystem\Filesystem as Storage;
+use Illuminate\Filesystem\FilesystemManager;
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Str;
+use League\Flysystem\WhitespacePathNormalizer;
+use Symfony\Component\HttpFoundation\File\UploadedFile;
+
+class FileStorage
+{
+    public function __construct(
+        protected FilesystemManager $fileSystem,
+    ) {
+    }
+
+    /**
+     * @return resource|null
+     */
+    public function getReadStream(string $path)
+    {
+        return $this->getStorageDisk()->readStream($this->adjustPathForStorageDisk($path));
+    }
+
+    public function getSize(string $path): int
+    {
+        return $this->getStorageDisk()->size($this->adjustPathForStorageDisk($path));
+    }
+
+    public function delete(string $path, bool $removeEmptyDir = false): void
+    {
+        $storage = $this->getStorageDisk();
+        $adjustedPath = $this->adjustPathForStorageDisk($path);
+        $dir = dirname($adjustedPath);
+
+        $storage->delete($adjustedPath);
+        if ($removeEmptyDir && count($storage->allFiles($dir)) === 0) {
+            $storage->deleteDirectory($dir);
+        }
+    }
+
+    /**
+     * @throws FileUploadException
+     */
+    public function uploadFile(UploadedFile $file, string $subDirectory, string $suffix, string $extension): string
+    {
+        $storage = $this->getStorageDisk();
+        $basePath = trim($subDirectory, '/') . '/';
+
+        $uploadFileName = Str::random(16) . ($suffix ? "-{$suffix}" : '') . ($extension ? ".{$extension}" : '');
+        while ($storage->exists($this->adjustPathForStorageDisk($basePath . $uploadFileName))) {
+            $uploadFileName = Str::random(3) . $uploadFileName;
+        }
+
+        $fileStream = fopen($file->getRealPath(), 'r');
+        $filePath = $basePath . $uploadFileName;
+
+        try {
+            $storage->writeStream($this->adjustPathForStorageDisk($filePath), $fileStream);
+        } catch (Exception $e) {
+            Log::error('Error when attempting file upload:' . $e->getMessage());
+
+            throw new FileUploadException(trans('errors.path_not_writable', ['filePath' => $filePath]));
+        }
+
+        return $filePath;
+    }
+
+    /**
+     * Get the storage that will be used for storing files.
+     */
+    protected function getStorageDisk(): Storage
+    {
+        return $this->fileSystem->disk($this->getStorageDiskName());
+    }
+
+    /**
+     * Get the name of the storage disk to use.
+     */
+    protected function getStorageDiskName(): string
+    {
+        $storageType = config('filesystems.attachments');
+
+        // Change to our secure-attachment disk if any of the local options
+        // are used to prevent escaping that location.
+        if ($storageType === 'local' || $storageType === 'local_secure' || $storageType === 'local_secure_restricted') {
+            $storageType = 'local_secure_attachments';
+        }
+
+        return $storageType;
+    }
+
+    /**
+     * Change the originally provided path to fit any disk-specific requirements.
+     * This also ensures the path is kept to the expected root folders.
+     */
+    protected function adjustPathForStorageDisk(string $path): string
+    {
+        $path = (new WhitespacePathNormalizer())->normalizePath(str_replace('uploads/files/', '', $path));
+
+        if ($this->getStorageDiskName() === 'local_secure_attachments') {
+            return $path;
+        }
+
+        return 'uploads/files/' . $path;
+    }
+}