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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program 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.
This program 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 this program. If not, see .
*/
package com.itextpdf.kernel.pdf.filespec;
import com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.io.util.UrlUtil;
import com.itextpdf.kernel.pdf.PdfArray;
import com.itextpdf.kernel.pdf.PdfBoolean;
import com.itextpdf.kernel.pdf.PdfDate;
import com.itextpdf.kernel.pdf.PdfDictionary;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfName;
import com.itextpdf.kernel.pdf.PdfNumber;
import com.itextpdf.kernel.pdf.PdfObject;
import com.itextpdf.kernel.pdf.PdfObjectWrapper;
import com.itextpdf.kernel.pdf.PdfStream;
import com.itextpdf.kernel.pdf.PdfString;
import com.itextpdf.kernel.pdf.collection.PdfCollectionItem;
import com.itextpdf.kernel.pdf.xobject.PdfImageXObject;
import java.io.IOException;
import java.io.InputStream;
public class PdfFileSpec extends PdfObjectWrapper {
protected PdfFileSpec(PdfObject pdfObject) {
super(pdfObject);
}
/**
* Wrap the passed {@link PdfObject} to the specific {@link PdfFileSpec} object,
* according to the type of the passed pdf object.
*
* @param fileSpecObject object to wrap
* @return wrapped {@link PdfFileSpec} instance
*/
public static PdfFileSpec wrapFileSpecObject(PdfObject fileSpecObject) {
if (fileSpecObject != null) {
if (fileSpecObject.isString()) {
return new PdfStringFS((PdfString) fileSpecObject);
} else if (fileSpecObject.isDictionary()) {
return new PdfDictionaryFS((PdfDictionary) fileSpecObject);
}
}
return null;
}
/**
* Create an external file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath file specification string, describing the path to the external file
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document
* that refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createExternalFileSpec(PdfDocument doc, String filePath, PdfName afRelationshipValue) {
PdfDictionary dict = new PdfDictionary();
dict.put(PdfName.Type, PdfName.Filespec);
dict.put(PdfName.F, new PdfString(filePath));
dict.put(PdfName.UF, new PdfString(filePath, PdfEncodings.UNICODE_BIG));
if (afRelationshipValue != null) {
dict.put(PdfName.AFRelationship, afRelationshipValue);
} else {
dict.put(PdfName.AFRelationship, PdfName.Unspecified);
}
return (PdfFileSpec) new PdfFileSpec(dict).makeIndirect(doc);
}
/**
* Create an external file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath file specification string, describing the path to the external file
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createExternalFileSpec(PdfDocument doc, String filePath) {
return createExternalFileSpec(doc, filePath, null);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param fileStore byte[] containing the file
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param fileParameter {@link PdfDictionary} containing fil parameters
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document
* that refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, byte[] fileStore, String description, String fileDisplay, PdfName mimeType, PdfDictionary fileParameter, PdfName afRelationshipValue) {
PdfStream stream = (PdfStream)new PdfStream(fileStore).makeIndirect(doc);
PdfDictionary params = new PdfDictionary();
if (fileParameter != null) {
params.mergeDifferent(fileParameter);
}
if (!params.containsKey(PdfName.ModDate)) {
params.put(PdfName.ModDate, new PdfDate().getPdfObject());
}
if (fileStore != null) {
params.put(PdfName.Size, new PdfNumber(stream.getBytes().length));
}
stream.put(PdfName.Params, params);
return createEmbeddedFileSpec(doc, stream, description, fileDisplay, mimeType, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param fileStore byte[] containing the file
* @param fileDisplay actual file name stored in the pdf
* @param fileParameter {@link PdfDictionary} containing fil parameters
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document
* that refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @param description the file description
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, byte[] fileStore, String description, String fileDisplay, PdfDictionary fileParameter, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, fileStore, description, fileDisplay, null, fileParameter, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param fileStore byte[] containing the file
* @param fileDisplay actual file name stored in the pdf
* @param fileParameter {@link PdfDictionary} containing fil parameters
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, byte[] fileStore, String fileDisplay, PdfDictionary fileParameter, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, fileStore, null, fileDisplay, null, fileParameter, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param fileStore byte[] containing the file
* @param fileDisplay actual file name stored in the pdf
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, byte[] fileStore, String fileDisplay, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, fileStore, null, fileDisplay, null, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param fileStore byte[] containing the file
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, byte[] fileStore, String description, String fileDisplay, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, fileStore, description, fileDisplay, null, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath file specification string, describing the path to the file to embed
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param fileParameter dictionary with file parameters
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
* @throws IOException if there are errors while creating an URL from the passed file path.
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, String filePath, String description, String fileDisplay, PdfName mimeType, PdfDictionary fileParameter, PdfName afRelationshipValue) throws IOException {
PdfStream stream = new PdfStream(doc, UrlUtil.toURL(filePath).openStream());
PdfDictionary params = new PdfDictionary();
if (fileParameter != null) {
params.mergeDifferent(fileParameter);
}
if (!params.containsKey(PdfName.ModDate)) {
params.put(PdfName.ModDate, new PdfDate().getPdfObject());
}
stream.put(PdfName.Params, params);
return createEmbeddedFileSpec(doc, stream, description, fileDisplay, mimeType, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath file specification string, describing the path to the file to embed
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
* @throws IOException if there are errors while creating an URL from the passed file path.
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, String filePath, String description, String fileDisplay, PdfName mimeType, PdfName afRelationshipValue) throws IOException {
return createEmbeddedFileSpec(doc, filePath, description, fileDisplay, mimeType, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath file specification string, describing the path to the file to embed
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
* @throws IOException if there are errors while creating an URL from the passed file path.
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, String filePath, String description, String fileDisplay, PdfName afRelationshipValue) throws IOException {
return createEmbeddedFileSpec(doc, filePath, description, fileDisplay, null, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param filePath path to the file to embed
* @param fileDisplay actual file name stored in the pdf
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
* @throws IOException if there are errors while creating an URL from the passed file path.
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, String filePath, String fileDisplay, PdfName afRelationshipValue) throws IOException {
return createEmbeddedFileSpec(doc, filePath, null, fileDisplay, null, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param is stream containing the file to embed
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param fileParameter dictionary with file parameters
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, InputStream is, String description, String fileDisplay, PdfName mimeType, PdfDictionary fileParameter, PdfName afRelationshipValue) {
PdfStream stream = new PdfStream(doc, is);
PdfDictionary params = new PdfDictionary();
if (fileParameter != null) {
params.mergeDifferent(fileParameter);
}
if (!params.containsKey(PdfName.ModDate)) {
params.put(PdfName.ModDate, new PdfDate().getPdfObject());
}
stream.put(PdfName.Params, params);
return createEmbeddedFileSpec(doc, stream, description, fileDisplay, mimeType, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param is stream containing the file to embed
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
public static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, InputStream is, String description, String fileDisplay, PdfName mimeType, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, is, description, fileDisplay, mimeType, null, afRelationshipValue);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param stream an embedded file stream dictionary
* @param description file description
* @param fileDisplay actual file name stored in the pdf
* @param mimeType subtype of the embedded file. The value of this entry shall conform
* to the MIME media type names
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
private static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, PdfStream stream, String description, String fileDisplay, PdfName mimeType, PdfName afRelationshipValue) {
PdfDictionary dict = new PdfDictionary();
stream.put(PdfName.Type, PdfName.EmbeddedFile);
if (afRelationshipValue != null) {
dict.put(PdfName.AFRelationship, afRelationshipValue);
} else {
dict.put(PdfName.AFRelationship, PdfName.Unspecified);
}
if (mimeType != null) {
stream.put(PdfName.Subtype, mimeType);
} else {
stream.put(PdfName.Subtype, PdfName.ApplicationOctetStream);
}
if (description != null) {
dict.put(PdfName.Desc, new PdfString(description));
}
dict.put(PdfName.Type, PdfName.Filespec);
dict.put(PdfName.F, new PdfString(fileDisplay));
dict.put(PdfName.UF, new PdfString(fileDisplay, PdfEncodings.UNICODE_BIG));
PdfDictionary ef = new PdfDictionary();
ef.put(PdfName.F, stream);
ef.put(PdfName.UF, stream);
dict.put(PdfName.EF, ef);
doc.markStreamAsEmbeddedFile(stream);
return (PdfFileSpec) new PdfFileSpec(dict).makeIndirect(doc);
}
/**
* Create an embedded file specification.
*
* @param doc {@link PdfDocument} instance to make this file specification indirect
* @param stream an embedded file stream dictionary
* @param fileDisplay actual file name stored in the pdf
* @param afRelationshipValue value that represents the relationship between the component of the passed PDF document that
* refers to this file specification and the associated file. If null,
* {@link PdfName#Unspecified} will be added.
* @return {@link PdfFileSpec} containing the file specification of the file
*/
private static PdfFileSpec createEmbeddedFileSpec(PdfDocument doc, PdfStream stream, String description, String fileDisplay, PdfName afRelationshipValue) {
return createEmbeddedFileSpec(doc, stream, description, fileDisplay, null, afRelationshipValue);
}
public PdfFileSpec setFileIdentifier(PdfArray fileIdentifier) {
return put(PdfName.ID, fileIdentifier);
}
public PdfArray getFileIdentifier() {
return ((PdfDictionary) getPdfObject()).getAsArray(PdfName.ID);
}
public PdfFileSpec setVolatile(PdfBoolean isVolatile) {
return put(PdfName.Volatile, isVolatile);
}
public PdfBoolean isVolatile() {
return ((PdfDictionary) getPdfObject()).getAsBoolean(PdfName.Volatile);
}
public PdfFileSpec setCollectionItem(PdfCollectionItem item) {
return put(PdfName.CI, item.getPdfObject());
}
/**
* PDF 2.0. Sets a stream object defining the thumbnail image for the file specification.
*
* @param thumbnailImage image used as a thumbnail
* @return this {@link PdfFileSpec} instance
*/
public PdfFileSpec setThumbnailImage(PdfImageXObject thumbnailImage) {
return put(PdfName.Thumb, thumbnailImage.getPdfObject());
}
/**
* PDF 2.0. Gets a stream object defining the thumbnail image for the file specification.
*
* @return image used as a thumbnail, or null if it is not set
*/
public PdfImageXObject getThumbnailImage() {
PdfStream thumbnailStream = ((PdfDictionary) getPdfObject()).getAsStream(PdfName.Thumb);
return thumbnailStream != null ? new PdfImageXObject(thumbnailStream) : null;
}
public PdfFileSpec put(PdfName key, PdfObject value) {
((PdfDictionary) getPdfObject()).put(key, value);
setModified();
return this;
}
@Override
protected boolean isWrappedObjectMustBeIndirect() {
return true;
}
}
