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https://issues.apache.org/jira/browse/TIKA-4854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18109675#comment-18109675
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ASF GitHub Bot commented on TIKA-4854:
--------------------------------------
THausherr commented on code in PR #3094:
URL: https://github.com/apache/tika/pull/3094#discussion_r3889507590
##########
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-apple-module/src/test/java/org/apache/tika/parser/iwork/iwana/IWork18ParserTest.java:
##########
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.tika.parser.iwork.iwana;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+import javax.imageio.ImageIO;
+
+import org.junit.jupiter.api.Test;
+
+import org.apache.tika.TikaTest;
+import org.apache.tika.io.TikaInputStream;
+import org.apache.tika.metadata.HttpHeaders;
+import org.apache.tika.metadata.Metadata;
+import org.apache.tika.metadata.TikaCoreProperties;
+import org.apache.tika.parser.ParseContext;
+
+public class IWork18ParserTest extends TikaTest {
+
+ /**
+ * The package's preview.jpg is the document's THUMBNAIL embedded
+ * document. The test fixture was saved without one, so a preview is
+ * added to a copy of it.
+ */
+ @Test
+ public void testPreviewIsTheThumbnail() throws Exception {
+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ try (InputStream is =
getResourceAsStream("/test-documents/testKeynote2018.key");
+ ZipInputStream in = new ZipInputStream(is);
+ ZipOutputStream out = new ZipOutputStream(bos)) {
+ ZipEntry entry;
+ while ((entry = in.getNextEntry()) != null) {
+ out.putNextEntry(new ZipEntry(entry.getName()));
+ in.transferTo(out);
+ out.closeEntry();
+ }
+ out.putNextEntry(new ZipEntry("Presentation.key/preview.jpg"));
+ out.write(jpeg());
+ out.closeEntry();
+ }
+ List<Metadata> metadataList;
+ try (TikaInputStream tis = TikaInputStream.get(bos.toByteArray())) {
+ metadataList = getRecursiveMetadata(tis, new
IWork18PackageParser(), new Metadata(),
+ new ParseContext(), false);
+ }
+ assertEquals(2, metadataList.size());
+ assertEquals("application/vnd.apple.keynote.18",
+ metadataList.get(0).get(HttpHeaders.CONTENT_TYPE));
+ Metadata thumbnail = metadataList.get(1);
+ assertEquals("Presentation.key/preview.jpg",
+ thumbnail.get(TikaCoreProperties.RESOURCE_NAME_KEY));
+
assertEquals(TikaCoreProperties.EmbeddedResourceType.THUMBNAIL.toString(),
+ thumbnail.get(TikaCoreProperties.EMBEDDED_RESOURCE_TYPE));
+ }
+
+ /**
+ * A small but well-formed JPEG, so the preview parses like a real one.
+ */
+ private static byte[] jpeg() throws Exception {
+ BufferedImage image = new BufferedImage(8, 8,
BufferedImage.TYPE_INT_RGB);
+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ ImageIO.write(image, "jpeg", bos);
+ return bos.toByteArray();
+ }
Review Comment:
I agree with this. `ImageIO.write` not throwing an exception is an old
pitfall.
> Emit the preview image of iWork '09 and iWork '18 packages as a THUMBNAIL
> embedded resource
> -------------------------------------------------------------------------------------------
>
> Key: TIKA-4854
> URL: https://issues.apache.org/jira/browse/TIKA-4854
> Project: Tika
> Issue Type: Improvement
> Reporter: Dominik Schmidt
> Priority: Major
>
> IWork13PackageParser emits preview.jpg as a THUMBNAIL embedded document. The
> two other iWork package parsers do not emit any embedded documents:
> IWorkPackageParser (iWork '09, QuickLook/Thumbnail.jpg) only parses the index
> XML, and IWork18PackageParser only detects the media type although the
> package carries preview.jpg as well. Both previews should be emitted as
> THUMBNAIL like the '13 one, so a client gets the representative image of
> every iWork file the same way.
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