fix: preserve spreadsheet URLs for JavaScript escaping

server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java

@@ -75,11 +75,11 @@ public class OfficeFilePreviewImpl implements FilePreview {
         if (!officePreviewType.equalsIgnoreCase("html")) {
             if (ConfigConstants.getOfficeTypeWeb().equalsIgnoreCase("web")) {
                 if (suffix.equalsIgnoreCase("xlsx")) {
-                    model.addAttribute("pdfUrl", KkFileUtils.htmlEscape(url)); //特殊符号处理
+                    model.addAttribute("pdfUrl", url); //模板使用 ?js_string 按 JavaScript 字符串上下文转义
                     return XLSX_FILE_PREVIEW_PAGE;
                 }
                 if (suffix.equalsIgnoreCase("csv")) {
-                    model.addAttribute("csvUrl", KkFileUtils.htmlEscape(url));
+                    model.addAttribute("csvUrl", url);
                     return CSV_FILE_PREVIEW_PAGE;
                 }
             }

server/src/test/java/cn/keking/PreviewUrlEscapingTests.java

@@ -0,0 +1,76 @@
+package cn.keking;
+
+import cn.keking.config.ConfigConstants;
+import cn.keking.model.FileAttribute;
+import cn.keking.service.impl.OfficeFilePreviewImpl;
+import cn.keking.service.impl.PdfFilePreviewImpl;
+import freemarker.template.Configuration;
+import freemarker.template.Template;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+import org.springframework.ui.ExtendedModelMap;
+
+import java.io.StringWriter;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class PreviewUrlEscapingTests {
+
+    @ParameterizedTest
+    @ValueSource(strings = {"pdf", "csv", "xlsx"})
+    void shouldPreserveSourceUrlThroughPreviewModelAndTemplate(String suffix) throws Exception {
+        String sourceUrl = "https://files.example/Int'l/report%20one." + suffix + "?token=a&mode=b";
+        String previousOfficeTypeWeb = ConfigConstants.getOfficeTypeWeb();
+        ConfigConstants.setOfficeTypeWebValue("web");
+        try {
+            FileAttribute file = new FileAttribute();
+            file.setName("report." + suffix);
+            file.setSuffix(suffix);
+            file.setOfficePreviewType("pdf");
+            file.setCacheName("url-escaping-test." + suffix);
+
+            ExtendedModelMap model = new ExtendedModelMap();
+            model.addAttribute("file", file);
+            model.addAttribute("baseUrl", "https://preview.example/");
+            model.addAttribute("kkagent", "false");
+            model.addAttribute("page", "0");
+            model.addAttribute("switchDisabled", "true");
+            model.addAttribute("watermarkTxt", "");
+            model.addAttribute("xlsxshowtoolbar", false);
+            for (String name : new String[]{"watermarkXSpace", "watermarkYSpace", "watermarkAlpha",
+                    "watermarkWidth", "watermarkHeight", "watermarkAngle"}) {
+                model.addAttribute(name, "0");
+            }
+            for (String name : new String[]{"watermarkFont", "watermarkFontsize", "watermarkColor",
+                    "highlightall", "pdfPresentationModeDisable", "pdfOpenFileDisable", "pdfPrintDisable",
+                    "pdfDownloadDisable", "pdfBookmarkDisable", "pdfDisableEditing", "pdfSidebarOpen", "kkkey"}) {
+                model.addAttribute(name, "");
+            }
+
+            OfficeFilePreviewImpl office = new OfficeFilePreviewImpl(null, null, null, null);
+            String view = suffix.equals("pdf")
+                    ? new PdfFilePreviewImpl(null, null, office, null).filePreviewHandle(sourceUrl, model, file)
+                    : office.filePreviewHandle(sourceUrl, model, file);
+            assertEquals(Map.of("pdf", "pdf", "csv", "csv", "xlsx", "officeweb").get(suffix), view);
+            assertEquals(sourceUrl, model.get(suffix.equals("csv") ? "csvUrl" : "pdfUrl"));
+
+            Configuration configuration = new Configuration(Configuration.VERSION_2_3_32);
+            configuration.setClassForTemplateLoading(getClass(), "/web");
+            configuration.setDefaultEncoding("UTF-8");
+            configuration.setClassicCompatible(true);
+            Template template = configuration.getTemplate(view + ".ftl");
+            StringWriter output = new StringWriter();
+            template.process(model, output);
+            String html = output.toString();
+
+            assertTrue(html.contains("var url = 'https://files.example/Int\\'l/report%20one."
+                    + suffix + "?token=a&mode=b';"), html);
+            assertFalse(html.contains("'"), html);
+        } finally {
+            ConfigConstants.setOfficeTypeWebValue(previousOfficeTypeWeb);
+        }
+    }
+}