PdfSignatureAppearance.java
| Index Score | ||
|---|---|---|
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com.lowagie.text.pdf |
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iText |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| DECL_COMMENTS | Comments in declarations | |
| SIZE | Size of the file in bytes | |
| COMPARISONS | Number of comparison operators | |
| OPERANDS | Number of operands | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERATORS | Number of operators | |
| LOGICAL_LINES | Number of statements | |
| ELOC | Effective lines of code | |
| DOC_COMMENT | Number of javadoc comment lines | |
| CYCLOMATIC | Cyclomatic complexity | |
| UNIQUE_OPERANDS | Number of unique operands | |
| EXITS | Procedure exits | |
| RETURNS | Number of return points from functions | |
| LINES | Number of lines in the source file | |
| LOC | Lines of code | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| COMMENTS | Comment lines | |
| FUNCTIONS | Number of function declarations | |
| JAVA0285 | JAVA0285 Dereference of potentially null variable | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| BLOCKS | Number of blocks | |
| JAVA0067 | JAVA0067 Array descriptor on identifier name | |
| LOOPS | Number of loops | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0076 | JAVA0076 Use of magic number | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| JAVA0008 | JAVA0008 Empty catch block | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0256 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0078 | JAVA0078 Floating point values compared with == | |
| JAVA0116 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0084 | JAVA0084 Should use compound assignment operator | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0259 | JAVA0259 Return of collection/array field | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| LINE_COMMENT | Number of line comments | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| WHITESPACE | Number of whitespace lines | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* $Id: PdfSignatureAppearance.java 3264 2008-04-17 15:28:45Z psoares33 $
*
* Copyright 2004-2006 by Paulo Soares.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import java.io.EOFException;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.RandomAccessFile;
import java.security.PrivateKey;
import java.security.cert.CRL;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import com.lowagie.text.Chunk;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
/**
* This class takes care of the cryptographic options and appearances that form a signature.
*/
public class PdfSignatureAppearance {
/**
* The rendering mode is just the description
*/
public static final int SignatureRenderDescription = 0;
/**
* The rendering mode is the name of the signer and the description
*/
public static final int SignatureRenderNameAndDescription = 1;
/**
* The rendering mode is an image and the description
*/
public static final int SignatureRenderGraphicAndDescription = 2;
/**
* The self signed filter.
*/
public static final PdfName SELF_SIGNED = PdfName.ADOBE_PPKLITE;
/**
* The VeriSign filter.
*/
public static final PdfName VERISIGN_SIGNED = PdfName.VERISIGN_PPKVS;
/**
* The Windows Certificate Security.
*/
public static final PdfName WINCER_SIGNED = PdfName.ADOBE_PPKMS;
public static final int NOT_CERTIFIED = 0;
public static final int CERTIFIED_NO_CHANGES_ALLOWED = 1;
public static final int CERTIFIED_FORM_FILLING = 2;
public static final int CERTIFIED_FORM_FILLING_AND_ANNOTATIONS = 3;
private static final float TOP_SECTION = 0.3f;
private static final float MARGIN = 2;
private Rectangle rect;
private Rectangle pageRect;
private PdfTemplate app[] = new PdfTemplate[5];
private PdfTemplate frm;
private PdfStamperImp writer;
private String layer2Text;
private String reason;
private String location;
private Calendar signDate;
private String provider;
private int page = 1;
private String fieldName;
private PrivateKey privKey;
private Certificate[] certChain;
private CRL[] crlList;
private PdfName filter;
private boolean newField;
private ByteBuffer sigout;
private OutputStream originalout;
private File tempFile;
private PdfDictionary cryptoDictionary;
private PdfStamper stamper;
private boolean preClosed = false;
private PdfSigGenericPKCS sigStandard;
private int range[];
private RandomAccessFile raf;
private byte bout[];
private int boutLen;
private byte externalDigest[];
private byte externalRSAdata[];
private String digestEncryptionAlgorithm;
private HashMap exclusionLocations;
PdfSignatureAppearance(PdfStamperImp writer) {
this.writer = writer;
signDate = new GregorianCalendar();
fieldName = getNewSigName();
}
private int render = SignatureRenderDescription;
/**
* Gets the rendering mode for this signature.
* @return the rendering mode for this signature
*/
public int getRender() {
return render;
}
/**
* Sets the rendering mode for this signature.
* The rendering modes can be the constants <CODE>SignatureRenderDescription</CODE>,
* <CODE>SignatureRenderNameAndDescription</CODE> or <CODE>SignatureRenderGraphicAndDescription</CODE>.
* The two last modes should be used with Acrobat 6 layer type.
* @param render the render mode
*/
public void setRender(int render) {
this.render = render;
}
private Image signatureGraphic = null;
/**
* Gets the Image object to render.
* @return the image
*/
public Image getSignatureGraphic() {
return signatureGraphic;
}
/**
* Sets the Image object to render when Render is set to <CODE>SignatureRenderGraphicAndDescription</CODE>
* @param signatureGraphic image rendered. If <CODE>null</CODE> the mode is defaulted
* to <CODE>SignatureRenderDescription</CODE>
*/
public void setSignatureGraphic(Image signatureGraphic) {
this.signatureGraphic = signatureGraphic;
}
/**
* Sets the signature text identifying the signer.
* @param text the signature text identifying the signer. If <CODE>null</CODE> or not set
* a standard description will be used
*/
public void setLayer2Text(String text) {
layer2Text = text;
}
/**
* Gets the signature text identifying the signer if set by setLayer2Text().
* @return the signature text identifying the signer
*/
public String getLayer2Text() {
return layer2Text;
}
/**
* Sets the text identifying the signature status.
* @param text the text identifying the signature status. If <CODE>null</CODE> or not set
* the description "Signature Not Verified" will be used
*/
public void setLayer4Text(String text) {
layer4Text = text;
}
/**
* Gets the text identifying the signature status if set by setLayer4Text().
* @return the text identifying the signature status
*/
public String getLayer4Text() {
return layer4Text;
}
/**
* Gets the rectangle representing the signature dimensions.
* @return the rectangle representing the signature dimensions. It may be <CODE>null</CODE>
* or have zero width or height for invisible signatures
*/
public Rectangle getRect() {
return rect;
}
/**
* Gets the visibility status of the signature.
* @return the visibility status of the signature
*/
public boolean isInvisible() {
return (rect == null || rect.getWidth() == 0 || rect.getHeight() == 0);
}
/**
* Sets the cryptographic parameters.
* @param privKey the private key
* @param certChain the certificate chain
* @param crlList the certificate revocation list. It may be <CODE>null</CODE>
* @param filter the crytographic filter type. It can be SELF_SIGNED, VERISIGN_SIGNED or WINCER_SIGNED
*/
public void setCrypto(PrivateKey privKey, Certificate[] certChain, CRL[] crlList, PdfName filter) {
this.privKey = privKey;
this.certChain = certChain;
this.crlList = crlList;
this.filter = filter;
}
/**
* Sets the signature to be visible. It creates a new visible signature field.
* @param pageRect the position and dimension of the field in the page
* @param page the page to place the field. The fist page is 1
* @param fieldName the field name or <CODE>null</CODE> to generate automatically a new field name
*/
public void setVisibleSignature(Rectangle pageRect, int page, String fieldName) {
if (fieldName != null) {
if (fieldName.indexOf('.') >= 0)
throw new IllegalArgumentException("Field names cannot contain a dot.");
AcroFields af = writer.getAcroFields();
AcroFields.Item item = af.getFieldItem(fieldName);
if (item != null)
throw new IllegalArgumentException("The field " + fieldName + " already exists.");
this.fieldName = fieldName;
}
if (page < 1 || page > writer.reader.getNumberOfPages())
throw new IllegalArgumentException("Invalid page number: " + page);
this.pageRect = new Rectangle(pageRect);
this.pageRect.normalize();
rect = new Rectangle(this.pageRect.getWidth(), this.pageRect.getHeight());
this.page = page;
newField = true;
}
/**
* Sets the signature to be visible. An empty signature field with the same name must already exist.
* @param fieldName the existing empty signature field name
*/
public void setVisibleSignature(String fieldName) {
AcroFields af = writer.getAcroFields();
AcroFields.Item item = af.getFieldItem(fieldName);
if (item == null)
throw new IllegalArgumentException("The field " + fieldName + " does not exist.");
PdfDictionary merged = (PdfDictionary)item.merged.get(0);
if (!PdfName.SIG.equals(PdfReader.getPdfObject(merged.get(PdfName.FT))))
throw new IllegalArgumentException("The field " + fieldName + " is not a signature field.");
this.fieldName = fieldName;
PdfArray r = (PdfArray)PdfReader.getPdfObject(merged.get(PdfName.RECT));
ArrayList ar = r.getArrayList();
float llx = ((PdfNumber)PdfReader.getPdfObject((PdfObject)ar.get(0))).floatValue();
float lly = ((PdfNumber)PdfReader.getPdfObject((PdfObject)ar.get(1))).floatValue();
float urx = ((PdfNumber)PdfReader.getPdfObject((PdfObject)ar.get(2))).floatValue();
float ury = ((PdfNumber)PdfReader.getPdfObject((PdfObject)ar.get(3))).floatValue();
pageRect = new Rectangle(llx, lly, urx, ury);
pageRect.normalize();
page = ((Integer)item.page.get(0)).intValue();
int rotation = writer.reader.getPageRotation(page);
Rectangle pageSize = writer.reader.getPageSizeWithRotation(page);
switch (rotation) {
case 90:
pageRect = new Rectangle(
pageRect.getBottom(),
pageSize.getTop() - pageRect.getLeft(),
pageRect.getTop(),
pageSize.getTop() - pageRect.getRight());
break;
case 180:
pageRect = new Rectangle(
pageSize.getRight() - pageRect.getLeft(),
pageSize.getTop() - pageRect.getBottom(),
pageSize.getRight() - pageRect.getRight(),
pageSize.getTop() - pageRect.getTop());
break;
case 270:
pageRect = new Rectangle(
pageSize.getRight() - pageRect.getBottom(),
pageRect.getLeft(),
pageSize.getRight() - pageRect.getTop(),
pageRect.getRight());
break;
}
if (rotation != 0)
pageRect.normalize();
rect = new Rectangle(this.pageRect.getWidth(), this.pageRect.getHeight());
}
/**
* Gets a template layer to create a signature appearance. The layers can go from 0 to 4.
* <p>
* Consult <A HREF="http://partners.adobe.com/asn/developer/pdfs/tn/PPKAppearances.pdf">PPKAppearances.pdf</A>
* for further details.
* @param layer the layer
* @return a template
*/
public PdfTemplate getLayer(int layer) {
if (layer < 0 || layer >= app.length)
return null;
PdfTemplate t = app[layer];
if (t == null) {
t = app[layer] = new PdfTemplate(writer);
t.setBoundingBox(rect);
writer.addDirectTemplateSimple(t, new PdfName("n" + layer));
}
return t;
}
/**
* Gets the template that aggregates all appearance layers. This corresponds to the /FRM resource.
* <p>
* Consult <A HREF="http://partners.adobe.com/asn/developer/pdfs/tn/PPKAppearances.pdf">PPKAppearances.pdf</A>
* for further details.
* @return the template that aggregates all appearance layers
*/
public PdfTemplate getTopLayer() {
if (frm == null) {
frm = new PdfTemplate(writer);
frm.setBoundingBox(rect);
writer.addDirectTemplateSimple(frm, new PdfName("FRM"));
}
return frm;
}
/**
* Gets the main appearance layer.
* <p>
* Consult <A HREF="http://partners.adobe.com/asn/developer/pdfs/tn/PPKAppearances.pdf">PPKAppearances.pdf</A>
* for further details.
* @return the main appearance layer
* @throws DocumentException on error
*/
public PdfTemplate getAppearance() throws DocumentException {
if (isInvisible()) {
PdfTemplate t = new PdfTemplate(writer);
t.setBoundingBox(new Rectangle(0, 0));
writer.addDirectTemplateSimple(t, null);
return t;
}
if (app[0] == null) {
PdfTemplate t = app[0] = new PdfTemplate(writer);
t.setBoundingBox(new Rectangle(100, 100));
writer.addDirectTemplateSimple(t, new PdfName("n0"));
t.setLiteral("% DSBlank\n");
}
if (app[1] == null && !acro6Layers) {
PdfTemplate t = app[1] = new PdfTemplate(writer);
t.setBoundingBox(new Rectangle(100, 100));
writer.addDirectTemplateSimple(t, new PdfName("n1"));
t.setLiteral(questionMark);
}
if (app[2] == null) {
String text;
if (layer2Text == null) {
StringBuffer buf = new StringBuffer();
buf.append("Digitally signed by ").append(PdfPKCS7.getSubjectFields((X509Certificate)certChain[0]).getField("CN")).append('\n');
SimpleDateFormat sd = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z");
buf.append("Date: ").append(sd.format(signDate.getTime()));
if (reason != null)
buf.append('\n').append("Reason: ").append(reason);
if (location != null)
buf.append('\n').append("Location: ").append(location);
text = buf.toString();
}
else
text = layer2Text;
PdfTemplate t = app[2] = new PdfTemplate(writer);
t.setBoundingBox(rect);
writer.addDirectTemplateSimple(t, new PdfName("n2"));
if (image != null) {
if (imageScale == 0) {
t.addImage(image, rect.getWidth(), 0, 0, rect.getHeight(), 0, 0);
}
else {
float usableScale = imageScale;
if (imageScale < 0)
usableScale = Math.min(rect.getWidth() / image.getWidth(), rect.getHeight() / image.getHeight());
float w = image.getWidth() * usableScale;
float h = image.getHeight() * usableScale;
float x = (rect.getWidth() - w) / 2;
float y = (rect.getHeight() - h) / 2;
t.addImage(image, w, 0, 0, h, x, y);
}
}
Font font;
if (layer2Font == null)
font = new Font();
else
font = new Font(layer2Font);
float size = font.getSize();
Rectangle dataRect = null;
Rectangle signatureRect = null;
if (render == SignatureRenderNameAndDescription ||
(render == SignatureRenderGraphicAndDescription && this.signatureGraphic != null)) {
// origin is the bottom-left
signatureRect = new Rectangle(
MARGIN,
MARGIN,
rect.getWidth() / 2 - MARGIN,
rect.getHeight() - MARGIN);
dataRect = new Rectangle(
rect.getWidth() / 2 + MARGIN / 2,
MARGIN,
rect.getWidth() - MARGIN / 2,
rect.getHeight() - MARGIN);
if (rect.getHeight() > rect.getWidth()) {
signatureRect = new Rectangle(
MARGIN,
rect.getHeight() / 2,
rect.getWidth() - MARGIN,
rect.getHeight());
dataRect = new Rectangle(
MARGIN,
MARGIN,
rect.getWidth() - MARGIN,
rect.getHeight() / 2 - MARGIN);
}
}
else {
dataRect = new Rectangle(
MARGIN,
MARGIN,
rect.getWidth() - MARGIN,
rect.getHeight() * (1 - TOP_SECTION) - MARGIN);
}
if (render == SignatureRenderNameAndDescription) {
String signedBy = PdfPKCS7.getSubjectFields((X509Certificate)certChain[0]).getField("CN");
Rectangle sr2 = new Rectangle(signatureRect.getWidth() - MARGIN, signatureRect.getHeight() - MARGIN );
float signedSize = fitText(font, signedBy, sr2, -1, runDirection);
ColumnText ct2 = new ColumnText(t);
ct2.setRunDirection(runDirection);
ct2.setSimpleColumn(new Phrase(signedBy, font), signatureRect.getLeft(), signatureRect.getBottom(), signatureRect.getRight(), signatureRect.getTop(), signedSize, Element.ALIGN_LEFT);
ct2.go();
}
else if (render == SignatureRenderGraphicAndDescription) {
ColumnText ct2 = new ColumnText(t);
ct2.setRunDirection(runDirection);
ct2.setSimpleColumn(signatureRect.getLeft(), signatureRect.getBottom(), signatureRect.getRight(), signatureRect.getTop(), 0, Element.ALIGN_RIGHT);
Image im = Image.getInstance(signatureGraphic);
im.scaleToFit(signatureRect.getWidth(), signatureRect.getHeight());
Paragraph p = new Paragraph();
// must calculate the point to draw from to make image appear in middle of column
float x = 0;
// experimentation found this magic number to counteract Adobe's signature graphic, which
// offsets the y co-ordinate by 15 units
float y = -im.getScaledHeight() + 15;
x = x + (signatureRect.getWidth() - im.getScaledWidth()) / 2;
y = y - (signatureRect.getHeight() - im.getScaledHeight()) / 2;
p.add(new Chunk(im, x + (signatureRect.getWidth() - im.getScaledWidth()) / 2, y, false));
ct2.addElement(p);
ct2.go();
}
if (size <= 0) {
Rectangle sr = new Rectangle(dataRect.getWidth(), dataRect.getHeight());
size = fitText(font, text, sr, 12, runDirection);
}
ColumnText ct = new ColumnText(t);
ct.setRunDirection(runDirection);
ct.setSimpleColumn(new Phrase(text, font), dataRect.getLeft(), dataRect.getBottom(), dataRect.getRight(), dataRect.getTop(), size, Element.ALIGN_LEFT);
ct.go();
}
if (app[3] == null && !acro6Layers) {
PdfTemplate t = app[3] = new PdfTemplate(writer);
t.setBoundingBox(new Rectangle(100, 100));
writer.addDirectTemplateSimple(t, new PdfName("n3"));
t.setLiteral("% DSBlank\n");
}
if (app[4] == null && !acro6Layers) {
PdfTemplate t = app[4] = new PdfTemplate(writer);
t.setBoundingBox(new Rectangle(0, rect.getHeight() * (1 - TOP_SECTION), rect.getRight(), rect.getTop()));
writer.addDirectTemplateSimple(t, new PdfName("n4"));
Font font;
if (layer2Font == null)
font = new Font();
else
font = new Font(layer2Font);
float size = font.getSize();
String text = "Signature Not Verified";
if (layer4Text != null)
text = layer4Text;
Rectangle sr = new Rectangle(rect.getWidth() - 2 * MARGIN, rect.getHeight() * TOP_SECTION - 2 * MARGIN);
size = fitText(font, text, sr, 15, runDirection);
ColumnText ct = new ColumnText(t);
ct.setRunDirection(runDirection);
ct.setSimpleColumn(new Phrase(text, font), MARGIN, 0, rect.getWidth() - MARGIN, rect.getHeight() - MARGIN, size, Element.ALIGN_LEFT);
ct.go();
}
int rotation = writer.reader.getPageRotation(page);
Rectangle rotated = new Rectangle(rect);
int n = rotation;
while (n > 0) {
rotated = rotated.rotate();
n -= 90;
}
if (frm == null) {
frm = new PdfTemplate(writer);
frm.setBoundingBox(rotated);
writer.addDirectTemplateSimple(frm, new PdfName("FRM"));
float scale = Math.min(rect.getWidth(), rect.getHeight()) * 0.9f;
float x = (rect.getWidth() - scale) / 2;
float y = (rect.getHeight() - scale) / 2;
scale /= 100;
if (rotation == 90)
frm.concatCTM(0, 1, -1, 0, rect.getHeight(), 0);
else if (rotation == 180)
frm.concatCTM(-1, 0, 0, -1, rect.getWidth(), rect.getHeight());
else if (rotation == 270)
frm.concatCTM(0, -1, 1, 0, 0, rect.getWidth());
frm.addTemplate(app[0], 0, 0);
if (!acro6Layers)
frm.addTemplate(app[1], scale, 0, 0, scale, x, y);
frm.addTemplate(app[2], 0, 0);
if (!acro6Layers) {
frm.addTemplate(app[3], scale, 0, 0, scale, x, y);
frm.addTemplate(app[4], 0, 0);
}
}
PdfTemplate napp = new PdfTemplate(writer);
napp.setBoundingBox(rotated);
writer.addDirectTemplateSimple(napp, null);
napp.addTemplate(frm, 0, 0);
return napp;
}
/**
* Fits the text to some rectangle adjusting the font size as needed.
* @param font the font to use
* @param text the text
* @param rect the rectangle where the text must fit
* @param maxFontSize the maximum font size
* @param runDirection the run direction
* @return the calculated font size that makes the text fit
*/
public static float fitText(Font font, String text, Rectangle rect, float maxFontSize, int runDirection) {
try {
ColumnText ct = null;
int status = 0;
if (maxFontSize <= 0) {
int cr = 0;
int lf = 0;
char t[] = text.toCharArray();
for (int k = 0; k < t.length; ++k) {
if (t[k] == '\n')
++lf;
else if (t[k] == '\r')
++cr;
}
int minLines = Math.max(cr, lf) + 1;
maxFontSize = Math.abs(rect.getHeight()) / minLines - 0.001f;
}
font.setSize(maxFontSize);
Phrase ph = new Phrase(text, font);
ct = new ColumnText(null);
ct.setSimpleColumn(ph, rect.getLeft(), rect.getBottom(), rect.getRight(), rect.getTop(), maxFontSize, Element.ALIGN_LEFT);
ct.setRunDirection(runDirection);
status = ct.go(true);
if ((status & ColumnText.NO_MORE_TEXT) != 0)
return maxFontSize;
float precision = 0.1f;
float min = 0;
float max = maxFontSize;
float size = maxFontSize;
for (int k = 0; k < 50; ++k) { //just in case it doesn't converge
size = (min + max) / 2;
ct = new ColumnText(null);
font.setSize(size);
ct.setSimpleColumn(new Phrase(text, font), rect.getLeft(), rect.getBottom(), rect.getRight(), rect.getTop(), size, Element.ALIGN_LEFT);
ct.setRunDirection(runDirection);
status = ct.go(true);
if ((status & ColumnText.NO_MORE_TEXT) != 0) {
if (max - min < size * precision)
return size;
min = size;
}
else
max = size;
}
return size;
}
catch (Exception e) {
throw new ExceptionConverter(e);
}
}
/**
* Sets the digest/signature to an external calculated value.
* @param digest the digest. This is the actual signature
* @param RSAdata the extra data that goes into the data tag in PKCS#7
* @param digestEncryptionAlgorithm the encryption algorithm. It may must be <CODE>null</CODE> if the <CODE>digest</CODE>
* is also <CODE>null</CODE>. If the <CODE>digest</CODE> is not <CODE>null</CODE>
* then it may be "RSA" or "DSA"
*/
public void setExternalDigest(byte digest[], byte RSAdata[], String digestEncryptionAlgorithm) {
externalDigest = digest;
externalRSAdata = RSAdata;
this.digestEncryptionAlgorithm = digestEncryptionAlgorithm;
}
/**
* Gets the signing reason.
* @return the signing reason
*/
public String getReason() {
return this.reason;
}
/**
* Sets the signing reason.
* @param reason the signing reason
*/
public void setReason(String reason) {
this.reason = reason;
}
/**
* Gets the signing location.
* @return the signing location
*/
public String getLocation() {
return this.location;
}
/**
* Sets the signing location.
* @param location the signing location
*/
public void setLocation(String location) {
this.location = location;
}
/**
* Returns the Cryptographic Service Provider that will sign the document.
* @return provider the name of the provider, for example "SUN",
* or <code>null</code> to use the default provider.
*/
public String getProvider() {
return this.provider;
}
/**
* Sets the Cryptographic Service Provider that will sign the document.
*
* @param provider the name of the provider, for example "SUN", or
* <code>null</code> to use the default provider.
*/
public void setProvider(String provider) {
this.provider = provider;
}
/**
* Gets the private key.
* @return the private key
*/
public java.security.PrivateKey getPrivKey() {
return privKey;
}
/**
* Gets the certificate chain.
* @return the certificate chain
*/
public java.security.cert.Certificate[] getCertChain() {
return this.certChain;
}
/**
* Gets the certificate revocation list.
* @return the certificate revocation list
*/
public java.security.cert.CRL[] getCrlList() {
return this.crlList;
}
/**
* Gets the filter used to sign the document.
* @return the filter used to sign the document
*/
public com.lowagie.text.pdf.PdfName getFilter() {
return filter;
}
/**
* Checks if a new field was created.
* @return <CODE>true</CODE> if a new field was created, <CODE>false</CODE> if signing
* an existing field or if the signature is invisible
*/
public boolean isNewField() {
return this.newField;
}
/**
* Gets the page number of the field.
* @return the page number of the field
*/
public int getPage() {
return page;
}
/**
* Gets the field name.
* @return the field name
*/
public java.lang.String getFieldName() {
return fieldName;
}
/**
* Gets the rectangle that represent the position and dimension of the signature in the page.
* @return the rectangle that represent the position and dimension of the signature in the page
*/
public com.lowagie.text.Rectangle getPageRect() {
return pageRect;
}
/**
* Gets the signature date.
* @return the signature date
*/
public java.util.Calendar getSignDate() {
return signDate;
}
/**
* Sets the signature date.
* @param signDate the signature date
*/
public void setSignDate(java.util.Calendar signDate) {
this.signDate = signDate;
}
com.lowagie.text.pdf.ByteBuffer getSigout() {
return sigout;
}
void setSigout(com.lowagie.text.pdf.ByteBuffer sigout) {
this.sigout = sigout;
}
java.io.OutputStream getOriginalout() {
return originalout;
}
void setOriginalout(java.io.OutputStream originalout) {
this.originalout = originalout;
}
/**
* Gets the temporary file.
* @return the temporary file or <CODE>null</CODE> is the document is created in memory
*/
public java.io.File getTempFile() {
return tempFile;
}
void setTempFile(java.io.File tempFile) {
this.tempFile = tempFile;
}
/**
* Gets a new signature fied name that doesn't clash with any existing name.
* @return a new signature fied name
*/
public String getNewSigName() {
AcroFields af = writer.getAcroFields();
String name = "Signature";
int step = 0;
boolean found = false;
while (!found) {
++step;
String n1 = name + step;
if (af.getFieldItem(n1) != null)
continue;
n1 += ".";
found = true;
for (Iterator it = af.getFields().keySet().iterator(); it.hasNext();) {
String fn = (String)it.next();
if (fn.startsWith(n1)) {
found = false;
break;
}
}
}
name += step;
return name;
}
/**
* This is the first method to be called when using external signatures. The general sequence is:
* preClose(), getDocumentBytes() and close().
* <p>
* If calling preClose() <B>dont't</B> call PdfStamper.close().
* <p>
* No external signatures are allowed if this method is called.
* @throws IOException on error
* @throws DocumentException on error
*/
public void preClose() throws IOException, DocumentException {
preClose(null);
}
/**
* This is the first method to be called when using external signatures. The general sequence is:
* preClose(), getDocumentBytes() and close().
* <p>
* If calling preClose() <B>dont't</B> call PdfStamper.close().
* <p>
* If using an external signature <CODE>exclusionSizes</CODE> must contain at least
* the <CODE>PdfName.CONTENTS</CODE> key with the size that it will take in the
* document. Note that due to the hex string coding this size should be
* byte_size*2+2.
* @param exclusionSizes a <CODE>HashMap</CODE> with names and sizes to be excluded in the signature
* calculation. The key is a <CODE>PdfName</CODE> and the value an
* <CODE>Integer</CODE>. At least the <CODE>PdfName.CONTENTS</CODE> must be present
* @throws IOException on error
* @throws DocumentException on error
*/
public void preClose(HashMap exclusionSizes) throws IOException, DocumentException {
if (preClosed)
throw new DocumentException("Document already pre closed.");
preClosed = true;
AcroFields af = writer.getAcroFields();
String name = getFieldName();
boolean fieldExists = !(isInvisible() || isNewField());
PdfIndirectReference refSig = writer.getPdfIndirectReference();
writer.setSigFlags(3);
if (fieldExists) {
ArrayList widgets = af.getFieldItem(name).widgets;
PdfDictionary widget = (PdfDictionary)widgets.get(0);
writer.markUsed(widget);
widget.put(PdfName.P, writer.getPageReference(getPage()));
widget.put(PdfName.V, refSig);
PdfObject obj = PdfReader.getPdfObjectRelease(widget.get(PdfName.F));
int flags = 0;
if (obj != null && obj.isNumber())
flags = ((PdfNumber)obj).intValue();
flags |= PdfAnnotation.FLAGS_LOCKED;
widget.put(PdfName.F, new PdfNumber(flags));
PdfDictionary ap = new PdfDictionary();
ap.put(PdfName.N, getAppearance().getIndirectReference());
widget.put(PdfName.AP, ap);
}
else {
PdfFormField sigField = PdfFormField.createSignature(writer);
sigField.setFieldName(name);
sigField.put(PdfName.V, refSig);
sigField.setFlags(PdfAnnotation.FLAGS_PRINT | PdfAnnotation.FLAGS_LOCKED);
int pagen = getPage();
if (!isInvisible())
sigField.setWidget(getPageRect(), null);
else
sigField.setWidget(new Rectangle(0, 0), null);
sigField.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, getAppearance());
sigField.setPage(pagen);
writer.addAnnotation(sigField, pagen);
}
exclusionLocations = new HashMap();
if (cryptoDictionary == null) {
if (PdfName.ADOBE_PPKLITE.equals(getFilter()))
sigStandard = new PdfSigGenericPKCS.PPKLite(getProvider());
else if (PdfName.ADOBE_PPKMS.equals(getFilter()))
sigStandard = new PdfSigGenericPKCS.PPKMS(getProvider());
else if (PdfName.VERISIGN_PPKVS.equals(getFilter()))
sigStandard = new PdfSigGenericPKCS.VeriSign(getProvider());
else
throw new IllegalArgumentException("Unknown filter: " + getFilter());
sigStandard.setExternalDigest(externalDigest, externalRSAdata, digestEncryptionAlgorithm);
if (getReason() != null)
sigStandard.setReason(getReason());
if (getLocation() != null)
sigStandard.setLocation(getLocation());
if (getContact() != null)
sigStandard.setContact(getContact());
sigStandard.put(PdfName.M, new PdfDate(getSignDate()));
sigStandard.setSignInfo(getPrivKey(), getCertChain(), getCrlList());
PdfString contents = (PdfString)sigStandard.get(PdfName.CONTENTS);
PdfLiteral lit = new PdfLiteral((contents.toString().length() + (PdfName.ADOBE_PPKLITE.equals(getFilter())?0:64)) * 2 + 2);
exclusionLocations.put(PdfName.CONTENTS, lit);
sigStandard.put(PdfName.CONTENTS, lit);
lit = new PdfLiteral(80);
exclusionLocations.put(PdfName.BYTERANGE, lit);
sigStandard.put(PdfName.BYTERANGE, lit);
if (certificationLevel > 0) {
addDocMDP(sigStandard);
}
if (signatureEvent != null)
signatureEvent.getSignatureDictionary(sigStandard);
writer.addToBody(sigStandard, refSig, false);
}
else {
PdfLiteral lit = new PdfLiteral(80);
exclusionLocations.put(PdfName.BYTERANGE, lit);
cryptoDictionary.put(PdfName.BYTERANGE, lit);
for (Iterator it = exclusionSizes.entrySet().iterator(); it.hasNext();) {
Map.Entry entry = (Map.Entry)it.next();
PdfName key = (PdfName)entry.getKey();
Integer v = (Integer)entry.getValue();
lit = new PdfLiteral(v.intValue());
exclusionLocations.put(key, lit);
cryptoDictionary.put(key, lit);
}
if (certificationLevel > 0)
addDocMDP(cryptoDictionary);
if (signatureEvent != null)
signatureEvent.getSignatureDictionary(cryptoDictionary);
writer.addToBody(cryptoDictionary, refSig, false);
}
if (certificationLevel > 0) {
// add DocMDP entry to root
PdfDictionary docmdp = new PdfDictionary();
docmdp.put(new PdfName("DocMDP"), refSig);
writer.reader.getCatalog().put(new PdfName("Perms"), docmdp);
}
writer.close(stamper.getMoreInfo());
range = new int[exclusionLocations.size() * 2];
int byteRangePosition = ((PdfLiteral)exclusionLocations.get(PdfName.BYTERANGE)).getPosition();
exclusionLocations.remove(PdfName.BYTERANGE);
int idx = 1;
for (Iterator it = exclusionLocations.values().iterator(); it.hasNext();) {
PdfLiteral lit = (PdfLiteral)it.next();
int n = lit.getPosition();
range[idx++] = n;
range[idx++] = lit.getPosLength() + n;
}
Arrays.sort(range, 1, range.length - 1);
for (int k = 3; k < range.length - 2; k += 2)
range[k] -= range[k - 1];
if (tempFile == null) {
bout = sigout.getBuffer();
boutLen = sigout.size();
range[range.length - 1] = boutLen - range[range.length - 2];
ByteBuffer bf = new ByteBuffer();
bf.append('[');
for (int k = 0; k < range.length; ++k)
bf.append(range[k]).append(' ');
bf.append(']');
System.arraycopy(bf.getBuffer(), 0, bout, byteRangePosition, bf.size());
}
else {
try {
raf = new RandomAccessFile(tempFile, "rw");
int boutLen = (int)raf.length();
range[range.length - 1] = boutLen - range[range.length - 2];
ByteBuffer bf = new ByteBuffer();
bf.append('[');
for (int k = 0; k < range.length; ++k)
bf.append(range[k]).append(' ');
bf.append(']');
raf.seek(byteRangePosition);
raf.write(bf.getBuffer(), 0, bf.size());
}
catch (IOException e) {
try{raf.close();}catch(Exception ee){}
try{tempFile.delete();}catch(Exception ee){}
throw e;
}
}
}
/**
* This is the last method to be called when using external signatures. The general sequence is:
* preClose(), getDocumentBytes() and close().
* <p>
* <CODE>update</CODE> is a <CODE>PdfDictionary</CODE> that must have exactly the
* same keys as the ones provided in {@link #preClose(HashMap)}.
* @param update a <CODE>PdfDictionary</CODE> with the key/value that will fill the holes defined
* in {@link #preClose(HashMap)}
* @throws DocumentException on error
* @throws IOException on error
*/
public void close(PdfDictionary update) throws IOException, DocumentException {
try {
if (!preClosed)
throw new DocumentException("preClose() must be called first.");
ByteBuffer bf = new ByteBuffer();
for (Iterator it = update.getKeys().iterator(); it.hasNext();) {
PdfName key = (PdfName)it.next();
PdfObject obj = update.get(key);
PdfLiteral lit = (PdfLiteral)exclusionLocations.get(key);
if (lit == null)
throw new IllegalArgumentException("The key " + key.toString() + " didn't reserve space in preClose().");
bf.reset();
obj.toPdf(null, bf);
if (bf.size() > lit.getPosLength())
throw new IllegalArgumentException("The key " + key.toString() + " is too big. Is " + bf.size() + ", reserved " + lit.getPosLength());
if (tempFile == null)
System.arraycopy(bf.getBuffer(), 0, bout, lit.getPosition(), bf.size());
else {
raf.seek(lit.getPosition());
raf.write(bf.getBuffer(), 0, bf.size());
}
}
if (update.size() != exclusionLocations.size())
throw new IllegalArgumentException("The update dictionary has less keys than required.");
if (tempFile == null) {
originalout.write(bout, 0, boutLen);
}
else {
if (originalout != null) {
raf.seek(0);
int length = (int)raf.length();
byte buf[] = new byte[8192];
while (length > 0) {
int r = raf.read(buf, 0, Math.min(buf.length, length));
if (r < 0)
throw new EOFException("Unexpected EOF");
originalout.write(buf, 0, r);
length -= r;
}
}
}
}
finally {
if (tempFile != null) {
try{raf.close();}catch(Exception ee){}
if (originalout != null)
try{tempFile.delete();}catch(Exception ee){}
}
if (originalout != null)
try{originalout.close();}catch(Exception e){}
}
}
private void addDocMDP(PdfDictionary crypto) {
PdfDictionary reference = new PdfDictionary();
PdfDictionary transformParams = new PdfDictionary();
transformParams.put(PdfName.P, new PdfNumber(certificationLevel));
transformParams.put(PdfName.V, new PdfName("1.2"));
transformParams.put(PdfName.TYPE, PdfName.TRANSFORMPARAMS);
reference.put(PdfName.TRANSFORMMETHOD, PdfName.DOCMDP);
reference.put(PdfName.TYPE, PdfName.SIGREF);
reference.put(PdfName.TRANSFORMPARAMS, transformParams);
reference.put(new PdfName("DigestValue"), new PdfString("aa"));
PdfArray loc = new PdfArray();
loc.add(new PdfNumber(0));
loc.add(new PdfNumber(0));
reference.put(new PdfName("DigestLocation"), loc);
reference.put(new PdfName("DigestMethod"), new PdfName("MD5"));
reference.put(PdfName.DATA, writer.reader.getTrailer().get(PdfName.ROOT));
PdfArray types = new PdfArray();
types.add(reference);
crypto.put(PdfName.REFERENCE, types);
}
/**
* Gets the document bytes that are hashable when using external signatures. The general sequence is:
* preClose(), getRangeStream() and close().
* <p>
* @return the document bytes that are hashable
*/
public InputStream getRangeStream() {
return new PdfSignatureAppearance.RangeStream(raf, bout, range);
}
/**
* Gets the user made signature dictionary. This is the dictionary at the /V key.
* @return the user made signature dictionary
*/
public com.lowagie.text.pdf.PdfDictionary getCryptoDictionary() {
return cryptoDictionary;
}
/**
* Sets a user made signature dictionary. This is the dictionary at the /V key.
* @param cryptoDictionary a user made signature dictionary
*/
public void setCryptoDictionary(com.lowagie.text.pdf.PdfDictionary cryptoDictionary) {
this.cryptoDictionary = cryptoDictionary;
}
/**
* Gets the <CODE>PdfStamper</CODE> associated with this instance.
* @return the <CODE>PdfStamper</CODE> associated with this instance
*/
public com.lowagie.text.pdf.PdfStamper getStamper() {
return stamper;
}
void setStamper(com.lowagie.text.pdf.PdfStamper stamper) {
this.stamper = stamper;
}
/**
* Checks if the document is in the process of closing.
* @return <CODE>true</CODE> if the document is in the process of closing,
* <CODE>false</CODE> otherwise
*/
public boolean isPreClosed() {
return preClosed;
}
/**
* Gets the instance of the standard signature dictionary. This instance
* is only available after pre close.
* <p>
* The main use is to insert external signatures.
* @return the instance of the standard signature dictionary
*/
public com.lowagie.text.pdf.PdfSigGenericPKCS getSigStandard() {
return sigStandard;
}
/**
* Gets the signing contact.
* @return the signing contact
*/
public String getContact() {
return this.contact;
}
/**
* Sets the signing contact.
* @param contact the signing contact
*/
public void setContact(String contact) {
this.contact = contact;
}
/**
* Gets the n2 and n4 layer font.
* @return the n2 and n4 layer font
*/
public Font getLayer2Font() {
return this.layer2Font;
}
/**
* Sets the n2 and n4 layer font. If the font size is zero, auto-fit will be used.
* @param layer2Font the n2 and n4 font
*/
public void setLayer2Font(Font layer2Font) {
this.layer2Font = layer2Font;
}
/**
* Gets the Acrobat 6.0 layer mode.
* @return the Acrobat 6.0 layer mode
*/
public boolean isAcro6Layers() {
return this.acro6Layers;
}
/**
* Acrobat 6.0 and higher recommends that only layer n2 and n4 be present. This method sets that mode.
* @param acro6Layers if <code>true</code> only the layers n2 and n4 will be present
*/
public void setAcro6Layers(boolean acro6Layers) {
this.acro6Layers = acro6Layers;
}
/** Sets the run direction in the n2 and n4 layer.
* @param runDirection the run direction
*/
public void setRunDirection(int runDirection) {
if (runDirection < PdfWriter.RUN_DIRECTION_DEFAULT || runDirection > PdfWriter.RUN_DIRECTION_RTL)
throw new RuntimeException("Invalid run direction: " + runDirection);
this.runDirection = runDirection;
}
/** Gets the run direction.
* @return the run direction
*/
public int getRunDirection() {
return runDirection;
}
/**
* Getter for property signatureEvent.
* @return Value of property signatureEvent.
*/
public SignatureEvent getSignatureEvent() {
return this.signatureEvent;
}
/**
* Sets the signature event to allow modification of the signature dictionary.
* @param signatureEvent the signature event
*/
public void setSignatureEvent(SignatureEvent signatureEvent) {
this.signatureEvent = signatureEvent;
}
/**
* Gets the background image for the layer 2.
* @return the background image for the layer 2
*/
public Image getImage() {
return this.image;
}
/**
* Sets the background image for the layer 2.
* @param image the background image for the layer 2
*/
public void setImage(Image image) {
this.image = image;
}
/**
* Gets the scaling to be applied to the background image.
* @return the scaling to be applied to the background image
*/
public float getImageScale() {
return this.imageScale;
}
/**
* Sets the scaling to be applied to the background image. If it's zero the image
* will fully fill the rectangle. If it's less than zero the image will fill the rectangle but
* will keep the proportions. If it's greater than zero that scaling will be applied.
* In any of the cases the image will always be centered. It's zero by default.
* @param imageScale the scaling to be applied to the background image
*/
public void setImageScale(float imageScale) {
this.imageScale = imageScale;
}
/**
* Commands to draw a yellow question mark in a stream content
*/
public static final String questionMark =
"% DSUnknown\n" +
"q\n" +
"1 G\n" +
"1 g\n" +
"0.1 0 0 0.1 9 0 cm\n" +
"0 J 0 j 4 M []0 d\n" +
"1 i \n" +
"0 g\n" +
"313 292 m\n" +
"313 404 325 453 432 529 c\n" +
"478 561 504 597 504 645 c\n" +
"504 736 440 760 391 760 c\n" +
"286 760 271 681 265 626 c\n" +
"265 625 l\n" +
"100 625 l\n" +
"100 828 253 898 381 898 c\n" +
"451 898 679 878 679 650 c\n" +
"679 555 628 499 538 435 c\n" +
"488 399 467 376 467 292 c\n" +
"313 292 l\n" +
"h\n" +
"308 214 170 -164 re\n" +
"f\n" +
"0.44 G\n" +
"1.2 w\n" +
"1 1 0.4 rg\n" +
"287 318 m\n" +
"287 430 299 479 406 555 c\n" +
"451 587 478 623 478 671 c\n" +
"478 762 414 786 365 786 c\n" +
"260 786 245 707 239 652 c\n" +
"239 651 l\n" +
"74 651 l\n" +
"74 854 227 924 355 924 c\n" +
"425 924 653 904 653 676 c\n" +
"653 581 602 525 512 461 c\n" +
"462 425 441 402 441 318 c\n" +
"287 318 l\n" +
"h\n" +
"282 240 170 -164 re\n" +
"B\n" +
"Q\n";
/**
* Holds value of property contact.
*/
private String contact;
/**
* Holds value of property layer2Font.
*/
private Font layer2Font;
/**
* Holds value of property layer4Text.
*/
private String layer4Text;
/**
* Holds value of property acro6Layers.
*/
private boolean acro6Layers;
/**
* Holds value of property runDirection.
*/
private int runDirection = PdfWriter.RUN_DIRECTION_NO_BIDI;
/**
* Holds value of property signatureEvent.
*/
private SignatureEvent signatureEvent;
/**
* Holds value of property image.
*/
private Image image;
/**
* Holds value of property imageScale.
*/
private float imageScale;
/**
*
*/
private static class RangeStream extends InputStream {
private byte b[] = new byte[1];
private RandomAccessFile raf;
private byte bout[];
private int range[];
private int rangePosition = 0;
private RangeStream(RandomAccessFile raf, byte bout[], int range[]) {
this.raf = raf;
this.bout = bout;
this.range = range;
}
/**
* @see java.io.InputStream#read()
*/
public int read() throws IOException {
int n = read(b);
if (n != 1)
return -1;
return b[0] & 0xff;
}
/**
* @see java.io.InputStream#read(byte[], int, int)
*/
public int read(byte[] b, int off, int len) throws IOException {
if (b == null) {
throw new NullPointerException();
} else if ((off < 0) || (off > b.length) || (len < 0) ||
((off + len) > b.length) || ((off + len) < 0)) {
throw new IndexOutOfBoundsException();
} else if (len == 0) {
return 0;
}
if (rangePosition >= range[range.length - 2] + range[range.length - 1]) {
return -1;
}
for (int k = 0; k < range.length; k += 2) {
int start = range[k];
int end = start + range[k + 1];
if (rangePosition < start)
rangePosition = start;
if (rangePosition >= start && rangePosition < end) {
int lenf = Math.min(len, end - rangePosition);
if (raf == null)
System.arraycopy(bout, rangePosition, b, off, lenf);
else {
raf.seek(rangePosition);
raf.readFully(b, off, lenf);
}
rangePosition += lenf;
return lenf;
}
}
return -1;
}
}
/**
* An interface to retrieve the signature dictionary for modification.
*/
public interface SignatureEvent {
/**
* Allows modification of the signature dictionary.
* @param sig the signature dictionary
*/
public void getSignatureDictionary(PdfDictionary sig);
}
private int certificationLevel = NOT_CERTIFIED;
/**
* Gets the certified status of this document.
* @return the certified status
*/
public int getCertificationLevel() {
return this.certificationLevel;
}
/**
* Sets the document type to certified instead of simply signed.
* @param certificationLevel the values can be: <code>NOT_CERTIFIED</code>, <code>CERTIFIED_NO_CHANGES_ALLOWED</code>,
* <code>CERTIFIED_FORM_FILLING</code> and <code>CERTIFIED_FORM_FILLING_AND_ANNOTATIONS</code>
*/
public void setCertificationLevel(int certificationLevel) {
this.certificationLevel = certificationLevel;
}
}
The table below shows all metrics for PdfSignatureAppearance.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 141.00 | Number of blocks | |
| BLOCK_COMMENT | 48.00 | Number of block comment lines | |
| COMMENTS | 430.00 | Comment lines | |
| COMMENT_DENSITY | 0.54 | Comment density | |
| COMPARISONS | 166.00 | Number of comparison operators | |
| CYCLOMATIC | 192.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 83.00 | Comments in declarations | |
| DOC_COMMENT | 377.00 | Number of javadoc comment lines | |
| ELOC | 790.00 | Effective lines of code | |
| EXEC_COMMENTS | 4.00 | Comments in executable code | |
| EXITS | 140.00 | Procedure exits | |
| FUNCTIONS | 73.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 129.12 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 168.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 5.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 1.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 52.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 3.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 10.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 1.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 18.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 3.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 2.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 2.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 2.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 4.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 1.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 9.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 6.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 3.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 1.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 4.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 6.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 2.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 3.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 15.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 1458.00 | Number of lines in the source file | |
| LINE_COMMENT | 5.00 | Number of line comments | |
| LOC | 922.00 | Lines of code | |
| LOGICAL_LINES | 540.00 | Number of statements | |
| LOOPS | 13.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 2555.00 | Number of operands | |
| OPERATORS | 4641.00 | Number of operators | |
| PARAMS | 49.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 7196.00 | Halstead program length | |
| PROGRAM_VOCAB | 719.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 119.00 | Number of return points from functions | |
| SIZE | 55426.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 653.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 66.00 | Number of unique operators | |
| WHITESPACE | 106.00 | Number of whitespace lines | |