Implement functionality to export a book, along with its pages and chapters, as a ZIP file.

Author: LM-Nishant

app/Exports/Controllers/BookExportApiController.php

@@ -4,6 +4,7 @@
 
 use BookStack\Entities\Queries\BookQueries;
 use BookStack\Exports\ExportFormatter;
+use BookStack\Exports\ZipExports\ZipExportBuilder;
 use BookStack\Http\ApiController;
 use Throwable;
 
@@ -63,4 +64,19 @@ public function exportMarkdown(int $id)
 
         return $this->download()->directly($markdown, $book->slug . '.md');
     }
-}
+
+    
+    /**
+     * Export a book to a contained ZIP export file.
+     * @throws NotFoundException
+     */
+    public function exportZip(int $id, ZipExportBuilder $builder)
+    {
+        $book = $this->queries->findVisibleByIdOrFail($id);
+        $bookName= $book->getShortName();
+     
+        $zip = $builder->buildForBook($book);
+
+        return $this->download()->streamedFileDirectly($zip, $bookName . '.zip', filesize($zip), true);
+    }
+}

app/Exports/Controllers/ChapterExportApiController.php

@@ -4,6 +4,7 @@
 
 use BookStack\Entities\Queries\ChapterQueries;
 use BookStack\Exports\ExportFormatter;
+use BookStack\Exports\ZipExports\ZipExportBuilder;
 use BookStack\Http\ApiController;
 use Throwable;
 
@@ -63,4 +64,13 @@ public function exportMarkdown(int $id)
 
         return $this->download()->directly($markdown, $chapter->slug . '.md');
     }
-}
+
+    public function exportZip(int $id, ZipExportBuilder $builder)
+    {
+        $chapter = $this->queries->findVisibleByIdOrFail($id);
+        $chapterName= $chapter->getShortName();
+        $zip = $builder->buildForChapter($chapter);
+
+        return $this->download()->streamedFileDirectly($zip, $chapterName . '.zip', filesize($zip), true);
+    }
+}

app/Exports/Controllers/PageExportApiController.php

@@ -4,6 +4,7 @@
 
 use BookStack\Entities\Queries\PageQueries;
 use BookStack\Exports\ExportFormatter;
+use BookStack\Exports\ZipExports\ZipExportBuilder;
 use BookStack\Http\ApiController;
 use Throwable;
 
@@ -63,4 +64,15 @@ public function exportMarkdown(int $id)
 
         return $this->download()->directly($markdown, $page->slug . '.md');
     }
-}
+
+
+
+    public function exportZip(int $id, ZipExportBuilder $builder)
+    {
+        $page = $this->queries->findVisibleByIdOrFail($id);
+        $pageSlug = $page->slug;
+        $zip = $builder->buildForPage($page);
+
+        return $this->download()->streamedFileDirectly($zip, $pageSlug . '.zip', filesize($zip), true);
+    }
+}