perf: add database indexes, implement caching, enforce permission guards, and sanitize external URLs

2026-05-10 22:01:06 +02:00
parent 351938aa5c
commit aa4c181b0c
14 changed files with 94 additions and 40 deletions
@@ -44,20 +44,21 @@ export class EmailImportService {
      const hasPreview = await this.pageCache.hasPreview(attachment.Id, 1);
      if (!hasPreview && attachment.Content?.Content1) {
        this.logger.log(`Generiere fehlende Vorschaubilder für Anhang ${attachment.Id} (Email ${emailId})`);
+        const tempPdfPath = path.join(os.tmpdir(), `email-att-gen-${attachment.Id}.pdf`);
        try {
-          const tempPdfPath = path.join(os.tmpdir(), `email-att-gen-${attachment.Id}.pdf`);
          await fs.writeFile(tempPdfPath, attachment.Content.Content1);
-          
+
          const images = await this.pdfService.pdfToImages(tempPdfPath, 400);
          await this.pageCache.generate(attachment.Id, images);
-          
+
          attachment.PageCount = images.length;
          await this.attachmentRepo.save(attachment);
-          
+
          await this.pdfService.cleanup(images);
-          await fs.unlink(tempPdfPath).catch(() => {});
        } catch (err: any) {
          this.logger.warn(`Fehler bei on-demand Vorschau-Generierung für Anhang ${attachment.Id}: ${err.message}`);
+        } finally {
+          await fs.unlink(tempPdfPath).catch(() => {});
        }
      }
    }