自动查重

application/api/controller/Plagiarism.php

@@ -197,16 +197,30 @@ class Plagiarism extends Base
             if ($needRefresh) {
                 $svc = new PlagiarismService();
                 $info = $svc->refreshViewerUrlFor($checkId);
+                if ($info['url'] === '') {
+                    return jsonError('Turnitin returned empty viewer_url');
+                }
                 return jsonSuccess([
                     'view_only_url' => $info['url'],
                     'expire'        => $info['expire'],
+                    'has_pdf'       => !empty($info['local_pdf']),
                 ]);
             }
             return jsonSuccess([
                 'view_only_url' => $row['view_only_url'],
                 'expire'        => intval($row['view_only_url_expire']),
+                'has_pdf'       => !empty($row['pdf_local_path']),
             ]);
         } catch (\Throwable $e) {
+            if (!empty($row['pdf_local_path'])) {
+                return jsonSuccess([
+                    'view_only_url' => '',
+                    'expire'        => 0,
+                    'has_pdf'       => true,
+                    'viewer_error'  => $e->getMessage(),
+                    'hint'          => '在线报告暂不可用，请使用 downloadReport 下载 PDF',
+                ]);
+            }
             return jsonError($e->getMessage());
         }
     }