Merge master into watermark defaults fix

server/pom.xml

@@ -91,17 +91,33 @@
                     <artifactId>poi</artifactId>
                     <groupId>org.apache.poi</groupId>
                 </exclusion>
+                <exclusion>
+                    <groupId>org.apache.poi</groupId>
+                    <artifactId>ooxml-schemas</artifactId>
+                </exclusion>
             </exclusions>
         </dependency>
         <dependency>
             <groupId>fr.opensagres.xdocreport</groupId>
             <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId>
             <version>${xdocreport.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.poi</groupId>
+                    <artifactId>ooxml-schemas</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>fr.opensagres.xdocreport</groupId>
             <artifactId>fr.opensagres.xdocreport.document</artifactId>
             <version>${xdocreport.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.poi</groupId>
+                    <artifactId>ooxml-schemas</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>com.aspose</groupId>

server/src/main/java/cn/keking/service/cache/impl/CacheServiceRedisImpl.java

@@ -1,12 +1,14 @@
 package cn.keking.service.cache.impl;
 
 import cn.keking.service.cache.CacheService;
+import org.apache.commons.lang3.StringUtils;
 import org.redisson.api.RBlockingQueue;
 import org.redisson.api.RMapCache;
 import org.redisson.api.RedissonClient;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -68,6 +70,9 @@ public class CacheServiceRedisImpl implements CacheService {
 
     @Override
     public List<String> getImgCache(String key) {
+        if (StringUtils.isEmpty(key)) {
+            return new ArrayList<>();
+        }
         RMapCache<String, List<String>> convertedList = redissonClient.getMapCache(FILE_PREVIEW_IMGS_KEY);
         return convertedList.get(key);
     }

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/main/resources/web/bpmn.ftl

@@ -41,7 +41,7 @@
     const viewer = new BpmnJS({
         container: '#diagram'
     });
-	var url = '${finalUrl}';
+	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/csv.ftl

@@ -35,7 +35,7 @@ var process_wb = (function() {
     if(typeof console !== 'undefined') console.log("output", new Date());
   };
 })();
- var url = '${finalUrl}';
+ var url = '${finalUrl?js_string}';
  var kkagent = '${kkagent}';
  var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/dcm.ftl

@@ -54,7 +54,7 @@
         <script src="dcm/index.umd.js"></script>
 
         <script>
-       var url = '${finalUrl}';
+       var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/drawio.ftl

@@ -16,7 +16,7 @@
     <#assign finalUrl="${baseUrl}${currentUrl}">
 </#if>
   <script>
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/eml.ftl

@@ -19,7 +19,7 @@
 <iframe src="" width="100%" frameborder="0"></iframe>
 </body>
 <script type="text/javascript">
-   	var url = '${finalUrl}';
+   	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/epub.ftl

@@ -25,7 +25,7 @@
   <div id="next" class="arrow">›</div>
 </body>
 <script type="text/javascript">
- 	var url = '${finalUrl}';
+ 	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/msg.ftl

@@ -17,7 +17,7 @@
 <iframe src="" width="100%" frameborder="0"></iframe>
 </body>
 <script type="text/javascript">
-   	var url = '${finalUrl}';
+   	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/ofd.ftl

@@ -17,7 +17,7 @@
 <iframe src="" width="100%" frameborder="0"></iframe>
 </body>
 <script type="text/javascript">
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
      

server/src/main/resources/web/officeweb.ftl

@@ -157,7 +157,7 @@
         window.location.href=test;
     }
 
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
    	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/online3D.ftl

@@ -20,7 +20,7 @@
 <iframe src="" width="100%" frameborder="0"></iframe>
 </body>
 <script type="text/javascript">
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
     var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/pdf.ftl

@@ -46,7 +46,7 @@
 </#if>
 
 <script type="text/javascript">
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
     var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/picture.ftl

@@ -58,6 +58,17 @@
         });
     }
     
+    // 从原始图片 URL 提取文件名（优先用 data-original-url，避免受反代 / CORS 代理 URL 影响）
+    function getImageNameFromOriginalUrl(imageElement) {
+        var originalUrl = imageElement.getAttribute('data-original-url') || '';
+        // 去除查询串与锚点
+        var noQuery = originalUrl.split('?')[0].split('#')[0];
+        // 取路径最后一段作为文件名（兼容 / 与 \）
+        var lastSep = Math.max(noQuery.lastIndexOf('/'), noQuery.lastIndexOf('\\'));
+        var name = lastSep >= 0 ? noQuery.substring(lastSep + 1) : noQuery;
+        return name || 'image';
+    }
+
     // 初始化图片查看器
     function initImageViewer() {
         var viewer = new Viewer(document.getElementById('image'), {
@@ -66,6 +77,10 @@
             button: false,
             backdrop: false,
             loop: true,
+            // Viewer 会将克隆图片的 data-original-url 改为加载地址，因此从原始元素读取标题。
+            title: function () {
+                return getImageNameFromOriginalUrl(this.images[this.index]);
+            }
         });
         viewer.view(0); // 0 是图片的索引，如果你想点击第一张图片，索引为 0
     }

server/src/main/resources/web/svg.ftl

@@ -129,7 +129,7 @@
     let isDragging = false;
     let startX, startY, startTranslateX, startTranslateY;
     let panStartX, panStartY;
-	var url = '${finalUrl}';
+	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/tiff.ftl

@@ -30,7 +30,7 @@
         var reg = new RegExp(str + "$");
         return reg.test(this);
     }
-    var url = '${finalUrl}';
+    var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

server/src/main/resources/web/xmind.ftl

@@ -20,7 +20,7 @@
 
 <script src="xmind/xmind.js"></script>
 <script type="text/javascript">
-   	var url = '${finalUrl}';
+   	var url = '${finalUrl?js_string}';
 	var kkagent = '${kkagent}';
     var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
     if (kkagent === 'true' || !url.startsWith(baseUrl)) {

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

@@ -75,6 +75,25 @@ public class PdfViewerCompatibilityTests {
         assertTrue(properties.contains("office.preview.type = ${KK_OFFICE_PREVIEW_TYPE:pdf}"));
     }
 
+    @Test
+    void shouldEscapeFileUrlWithJsStringInAllPreviewTemplates() throws IOException {
+        // Regression test for #790: a single quote in the source file URL (e.g. a path
+        // segment like "Int'l") was interpolated raw into the inline `var url = '...'`
+        // assignment, terminating the JS string early and throwing Uncaught SyntaxError.
+        // FreeMarker's ?js_string built-in escapes it for the JS string literal context.
+        // Every preview template that injects the file URL into a JS string literal must
+        // use ?js_string, otherwise a URL containing an apostrophe breaks the page.
+        String[] previewTemplates = {
+                "bpmn", "csv", "dcm", "drawio", "eml", "epub", "msg", "ofd",
+                "officeweb", "online3D", "pdf", "svg", "tiff", "xmind"
+        };
+        for (String name : previewTemplates) {
+            String template = readResource("/web/" + name + ".ftl");
+            assertTrue(template.contains("var url = '${finalUrl?js_string}';"),
+                    () -> name + ".ftl must JS-escape the file URL to avoid SyntaxError on apostrophe (see #790)");
+        }
+    }
+
     private String readResource(String resourcePath) throws IOException {
         try (InputStream inputStream = getClass().getResourceAsStream(resourcePath)) {
             assertNotNull(inputStream);

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

@@ -0,0 +1,52 @@
+package cn.keking;
+
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * kkFileView #787 回归测试：直接图片预览（picture.ftl）必须在 Viewer.js 标题里显示文件名。
+ *
+ * 根因：v4.3.0 之后模板把图片元素从 <img> 改成 <div src>，而 HTMLDivElement 没有 DOM 的
+ * src 属性，Viewer.js 用 image.src 取标题得到 undefined，导致标题为空。修复方式是在 Viewer 初始化时
+ * 配置 title 函数，从 data-original-url 派生文件名。
+ *
+ * Viewer 会将内部克隆图片的 data-original-url 改为实际加载地址（可能是代理地址），
+ * 标题必须读取 this.images[this.index] 中保留原始 URL 的元素。
+ */
+public class PictureFilePreviewTests {
+
+    @Test
+    void shouldDeriveViewerTitleFromOriginalUrl() throws IOException {
+        String pictureTemplate = readResource("/web/picture.ftl");
+
+        // 模板仍保留 data-original-url 供标题派生使用
+        assertTrue(pictureTemplate.contains("data-original-url"),
+                () -> "picture.ftl must keep data-original-url for title derivation (see #787)");
+
+        // Viewer 初始化必须配置 title 函数，否则 <div> 的 image.src 为 undefined、标题为空
+        assertTrue(pictureTemplate.contains("title: function"),
+                () -> "picture.ftl must configure a Viewer title function to show the filename (see #787)");
+
+        // 标题派生逻辑必须读取 data-original-url（而非反代 / CORS 代理 URL）
+        assertTrue(pictureTemplate.contains("getImageNameFromOriginalUrl"),
+                () -> "picture.ftl must derive the title from data-original-url (see #787)");
+        assertTrue(pictureTemplate.contains("getAttribute('data-original-url')"),
+                () -> "title derivation must read data-original-url attribute (see #787)");
+
+        assertTrue(pictureTemplate.contains("getImageNameFromOriginalUrl(this.images[this.index])"),
+                () -> "Viewer title must use the original element rather than its proxy-backed clone (see #787)");
+    }
+
+    private String readResource(String resourcePath) throws IOException {
+        try (InputStream inputStream = getClass().getResourceAsStream(resourcePath)) {
+            assertNotNull(inputStream);
+            return new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+        }
+    }
+}

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);
+        }
+    }
+}

server/src/test/java/cn/keking/service/cache/impl/CacheServiceRedisImplTests.java

@@ -0,0 +1,65 @@
+package cn.keking.service.cache.impl;
+
+import cn.keking.service.cache.CacheService;
+import org.junit.jupiter.api.Test;
+import org.redisson.api.RMapCache;
+import org.redisson.api.RedissonClient;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+/**
+ * CacheServiceRedisImpl 回归测试。
+ *
+ * 背景：cache.type=redis 时预览单张图片，compressFileKey 为 null，
+ * 修复前会把 null 直接传给 Redisson，抛出 NullPointerException: map key can't be null。
+ */
+class CacheServiceRedisImplTests {
+
+    @Test
+    void shouldReturnEmptyListWhenKeyIsNull() {
+        RedissonClient redissonClient = mock(RedissonClient.class);
+        CacheServiceRedisImpl cacheService = new CacheServiceRedisImpl(redissonClient);
+
+        List<String> result = cacheService.getImgCache(null);
+
+        assertNotNull(result);
+        assertTrue(result.isEmpty());
+        // 判空后不应再访问 Redis —— 修复前这里会调用 getMapCache 并抛出 NPE
+        verifyNoInteractions(redissonClient);
+    }
+
+    @Test
+    void shouldReturnEmptyListWhenKeyIsEmpty() {
+        RedissonClient redissonClient = mock(RedissonClient.class);
+        CacheServiceRedisImpl cacheService = new CacheServiceRedisImpl(redissonClient);
+
+        List<String> result = cacheService.getImgCache("");
+
+        assertNotNull(result);
+        assertTrue(result.isEmpty());
+        verifyNoInteractions(redissonClient);
+    }
+
+    @Test
+    void shouldReadFromRedisWhenKeyIsPresent() {
+        RedissonClient redissonClient = mock(RedissonClient.class);
+        @SuppressWarnings("unchecked")
+        RMapCache<String, List<String>> mapCache = mock(RMapCache.class);
+        when(redissonClient.<String, List<String>>getMapCache(CacheService.FILE_PREVIEW_IMGS_KEY))
+                .thenReturn(mapCache);
+        when(mapCache.get("zip-key")).thenReturn(List.of("a.png", "b.png"));
+
+        CacheServiceRedisImpl cacheService = new CacheServiceRedisImpl(redissonClient);
+
+        List<String> result = cacheService.getImgCache("zip-key");
+
+        assertEquals(List.of("a.png", "b.png"), result);
+    }
+}

server/src/test/java/cn/keking/utils/OfficeSchemaCompatibilityTests.java

@@ -0,0 +1,64 @@
+package cn.keking.utils;
+
+import org.apache.poi.extractor.ExtractorFactory;
+import org.apache.poi.extractor.POITextExtractor;
+import org.apache.poi.xslf.usermodel.XMLSlideShow;
+import org.apache.poi.xwpf.usermodel.XWPFDocument;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Collections;
+import java.util.List;
+
+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 OfficeSchemaCompatibilityTests {
+
+    @TempDir
+    Path directory;
+
+    @Test
+    void shouldLoadOneSchemaDefinitionForEachOfficeFormat() throws Exception {
+        for (String schema : new String[]{
+                "org/openxmlformats/schemas/wordprocessingml/x2006/main/DocumentDocument.class",
+                "org/openxmlformats/schemas/presentationml/x2006/main/SldMasterDocument.class"}) {
+            List<URL> definitions = Collections.list(getClass().getClassLoader().getResources(schema));
+            assertEquals(1, definitions.size(), () -> "Conflicting Office schema definitions: " + definitions);
+        }
+    }
+
+    @Test
+    void shouldReadDocxWithCurrentPoiSchemas() throws Exception {
+        Path file = directory.resolve("sample.docx");
+        try (XWPFDocument document = new XWPFDocument(); OutputStream output = Files.newOutputStream(file)) {
+            document.createParagraph().createRun().setText("Schema compatibility");
+            document.write(output);
+        }
+        assertReadable(file);
+    }
+
+    @Test
+    void shouldReadPptxWithCurrentPoiSchemas() throws Exception {
+        Path file = directory.resolve("sample.pptx");
+        try (XMLSlideShow document = new XMLSlideShow(); OutputStream output = Files.newOutputStream(file)) {
+            document.createSlide().createTextBox().setText("Schema compatibility");
+            document.write(output);
+        }
+        assertReadable(file);
+    }
+
+    private void assertReadable(Path file) throws Exception {
+        try (InputStream input = Files.newInputStream(file);
+             POITextExtractor extractor = ExtractorFactory.createExtractor(input)) {
+            assertTrue(extractor.getText().contains("Schema compatibility"));
+        }
+        assertFalse(OfficeUtils.isPwdProtected(file.toString()));
+    }
+}

tests/e2e/specs/picture-title.spec.ts

@@ -0,0 +1,14 @@
+import { test, expect } from '@playwright/test';
+
+const fixtureBase = process.env.FIXTURE_BASE_URL || 'http://127.0.0.1:18080';
+
+for (const proxy of [false, true]) {
+  test(`image title retains the source filename with kkagent=${proxy}`, async ({ page }) => {
+    const source = `${fixtureBase}/sample.png`;
+    const encoded = encodeURIComponent(Buffer.from(source).toString('base64'));
+    const response = await page.goto(`/onlinePreview?url=${encoded}&kkagent=${proxy}`);
+
+    expect(response?.status()).toBe(200);
+    await expect(page.locator('.viewer-title')).toHaveText('sample.png');
+  });
+}