/*
* Created on 17 set 2015
* Copyright 2015 by Andrea Vacondio (andrea.vacondio@gmail.com).
* This file is part of Sejda.
*
* Sejda is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sejda is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Sejda. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sejda.impl.sambox.component;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.sejda.common.LookupTable;
import org.sejda.io.SeekableSources;
import org.sejda.model.pdf.form.AcroFormPolicy;
import org.sejda.sambox.cos.COSName;
import org.sejda.sambox.input.PDFParser;
import org.sejda.sambox.pdmodel.PDDocument;
import org.sejda.sambox.pdmodel.PDPage;
import org.sejda.sambox.pdmodel.interactive.annotation.PDAnnotation;
import org.sejda.sambox.pdmodel.interactive.form.PDAcroForm;
import org.sejda.sambox.pdmodel.interactive.form.PDField;
import org.sejda.sambox.pdmodel.interactive.form.PDRadioButton;
import org.sejda.sambox.pdmodel.interactive.form.PDTerminalField;
import org.sejda.util.IOUtils;
/**
* @author Andrea Vacondio
*
*/
public class AcroFormsMergerTest {
private PDDocument document;
private LookupTable<PDPage> mapping = new LookupTable<>();
private LookupTable<PDAnnotation> annotationsLookup;
@Before
public void setUp() throws IOException {
document = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form.pdf")));
for (PDPage current : document.getPages()) {
mapping.addLookupEntry(current, new PDPage());
annotationsLookup = new AnnotationsDistiller(document).retainRelevantAnnotations(mapping);
}
}
@After
public void tearDown() {
IOUtils.closeQuietly(document);
}
@Test
public void mergeNull() {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(null, annotationsLookup);
assertTrue(victim.getForm().getFields().isEmpty());
}
@Test
public void mergeNoRelevant() {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
annotationsLookup.clear();
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertTrue(victim.getForm().getFields().isEmpty());
}
@Test
public void mergeWithXFA() {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
PDAcroForm form = document.getDocumentCatalog().getAcroForm();
assertNotNull(form);
form.getCOSObject().setString(COSName.XFA, "Something");
victim.mergeForm(form, annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
}
@Test
public void discard() {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.DISCARD, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertTrue(victim.getForm().getFields().isEmpty());
}
@Test
public void merge() {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
}
@Test
public void mergeWithHierarchy() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
try (PDDocument anotherDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form_with_hierarchy.pdf")))) {
mapping.addLookupEntry(anotherDoc.getPage(0), new PDPage());
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
PDAcroForm form = victim.getForm();
assertNotNull(form.getField("node.leaf"));
assertEquals(5, form.getFields().size());
}
}
@Test
public void mergeRenamingWithHierarchy() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE_RENAMING_EXISTING_FIELDS, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
try (PDDocument anotherDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form_with_hierarchy.pdf")))) {
mapping.addLookupEntry(anotherDoc.getPage(0), new PDPage());
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
mapping.addLookupEntry(anotherDoc.getPage(0), new PDPage());
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
PDAcroForm form = victim.getForm();
assertNotNull(form.getField("node.leaf"));
assertEquals(6, form.getFields().size());
}
}
@Test
public void mergeHalfFormWithAnnotations() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
try (PDDocument anotherDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/two_pages_form.pdf")))) {
mapping.addLookupEntry(anotherDoc.getPage(0), new PDPage());
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
assertNull(destination.getDocumentCatalog().getAcroForm());
}
}
@Test
public void mergeOrphans() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
mapping.clear();
annotationsLookup.clear();
try (PDDocument anotherDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/form_orphan_fields.pdf")))) {
PDPage destPage = new PDPage();
mapping.addLookupEntry(anotherDoc.getPage(0), destPage);
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
PDAcroForm form = victim.getForm();
assertEquals(2, form.getFields().size());
assertEquals(6, destPage.getAnnotations().size());
}
}
@Test
public void mergeSame() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
PDDocument sameDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form.pdf")));
for (PDPage current : sameDoc.getPages()) {
mapping.addLookupEntry(current, new PDPage());
annotationsLookup = new AnnotationsDistiller(sameDoc).retainRelevantAnnotations(mapping);
}
victim.mergeForm(sameDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
assertEquals(4, victim.getForm().getFields().size());
for (PDField field : victim.getForm().getFieldTree()) {
if (field.isTerminal()) {
//System.out.println(field.getFullyQualifiedName() + " " + field.getWidgets().size() + " " + field.getClass().getSimpleName());
if (field.getFullyQualifiedName().startsWith("Choice_Caption_")) {
assertEquals(4, field.getWidgets().size());
} else {
assertEquals(2, field.getWidgets().size());
}
}
}
assertNull(destination.getDocumentCatalog().getAcroForm());
}
@Test
public void mergeRenaming() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE_RENAMING_EXISTING_FIELDS, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
PDDocument sameDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form.pdf")));
for (PDPage current : sameDoc.getPages()) {
mapping.addLookupEntry(current, new PDPage());
annotationsLookup = new AnnotationsDistiller(sameDoc).retainRelevantAnnotations(mapping);
}
victim.mergeForm(sameDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
assertEquals(8, victim.getForm().getFields().size());
for (PDField field : victim.getForm().getFieldTree()) {
if (field instanceof PDRadioButton) {
assertEquals(field.getPartialName(), 2, ((PDTerminalField) field).getWidgets().size());
} else {
assertEquals(1, ((PDTerminalField) field).getWidgets().size());
}
}
assertNull(destination.getDocumentCatalog().getAcroForm());
}
@Test
public void mergeWithSignatureRemovesSignatureValue() throws IOException {
PDDocument destination = new PDDocument();
AcroFormsMerger victim = new AcroFormsMerger(AcroFormPolicy.MERGE, destination);
assertNotNull(document.getDocumentCatalog().getAcroForm());
victim.mergeForm(document.getDocumentCatalog().getAcroForm(), annotationsLookup);
mapping.clear();
annotationsLookup.clear();
PDDocument anotherDoc = PDFParser.parse(SeekableSources.inMemorySeekableSourceFrom(
getClass().getClassLoader().getResourceAsStream("pdf/forms/simple_form_with_signature_signed.pdf")));
for (PDPage current : anotherDoc.getPages()) {
mapping.addLookupEntry(current, new PDPage());
annotationsLookup = new AnnotationsDistiller(anotherDoc).retainRelevantAnnotations(mapping);
}
victim.mergeForm(anotherDoc.getDocumentCatalog().getAcroForm(), annotationsLookup);
assertFalse(victim.getForm().getFields().isEmpty());
PDAcroForm form = victim.getForm();
assertNotNull(form);
PDField signature = null;
for (PDField current : form.getFieldTree()) {
if (current.getFieldType() == COSName.SIG.getName()) {
signature = current;
}
}
assertNotNull(signature);
assertEquals("", signature.getValueAsString());
assertTrue(form.isSignaturesExist());
}
}