fix: exclude legacy schemas from Office preview dependencies

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()));
+    }
+}