/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.sun.org.apache.xml.internal.security.signature;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Arrays;
import java.util.Set;
import com.sun.org.apache.xml.internal.security.c14n.helper.AttrCompare;
import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;
/**
* Class XMLSignatureInputDebugger
*
* @author $Author: raul $
* @version $Revision: 1.3 $
*/
public class XMLSignatureInputDebugger {
/** Field _xmlSignatureInput */
private Set _xpathNodeSet;
private Set _inclusiveNamespaces;
/** Field _doc */
private Document _doc = null;
/** Field _writer */
private Writer _writer = null;
// J-
// public static final String HTMLPrefix = "<!DOCTYPE HTML PUBLIC
// \"-//W3C//DTD HTML 4.01 Transitional//EN\"><html><head><style
// type=\"text/css\"><!-- .INCLUDED { color: #000000; background-color:
// #FFFFFF; font-weight: bold; } .EXCLUDED { color: #666666;
// background-color: #999999; } .INCLUDEDINCLUSIVENAMESPACE { color:
// #0000FF; background-color: #FFFFFF; font-weight: bold; font-style:
// italic; } .EXCLUDEDINCLUSIVENAMESPACE { color: #0000FF; background-color:
// #999999; font-style: italic; } --> </style> </head><body
// bgcolor=\"#999999\"><pre>";
/** The HTML Prefix* */
static final String HTMLPrefix = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n"
+ "<html>\n"
+ "<head>\n"
+ "<title>Caninical XML node set</title>\n"
+ "<style type=\"text/css\">\n"
+ "<!-- \n"
+ ".INCLUDED { \n"
+ " color: #000000; \n"
+ " background-color: \n"
+ " #FFFFFF; \n"
+ " font-weight: bold; } \n"
+ ".EXCLUDED { \n"
+ " color: #666666; \n"
+ " background-color: \n"
+ " #999999; } \n"
+ ".INCLUDEDINCLUSIVENAMESPACE { \n"
+ " color: #0000FF; \n"
+ " background-color: #FFFFFF; \n"
+ " font-weight: bold; \n"
+ " font-style: italic; } \n"
+ ".EXCLUDEDINCLUSIVENAMESPACE { \n"
+ " color: #0000FF; \n"
+ " background-color: #999999; \n"
+ " font-style: italic; } \n"
+ "--> \n"
+ "</style> \n"
+ "</head>\n"
+ "<body bgcolor=\"#999999\">\n"
+ "<h1>Explanation of the output</h1>\n"
+ "<p>The following text contains the nodeset of the given Reference before it is canonicalized. There exist four different styles to indicate how a given node is treated.</p>\n"
+ "<ul>\n"
+ "<li class=\"INCLUDED\">A node which is in the node set is labeled using the INCLUDED style.</li>\n"
+ "<li class=\"EXCLUDED\">A node which is <em>NOT</em> in the node set is labeled EXCLUDED style.</li>\n"
+ "<li class=\"INCLUDEDINCLUSIVENAMESPACE\">A namespace which is in the node set AND in the InclusiveNamespaces PrefixList is labeled using the INCLUDEDINCLUSIVENAMESPACE style.</li>\n"
+ "<li class=\"EXCLUDEDINCLUSIVENAMESPACE\">A namespace which is in NOT the node set AND in the InclusiveNamespaces PrefixList is labeled using the INCLUDEDINCLUSIVENAMESPACE style.</li>\n"
+ "</ul>\n" + "<h1>Output</h1>\n" + "<pre>\n";
/** HTML Suffix * */
static final String HTMLSuffix = "</pre></body></html>";
static final String HTMLExcludePrefix = "<span class=\"EXCLUDED\">";
static final String HTMLExcludeSuffix = "</span>";
static final String HTMLIncludePrefix = "<span class=\"INCLUDED\">";
static final String HTMLIncludeSuffix = "</span>";
static final String HTMLIncludedInclusiveNamespacePrefix = "<span class=\"INCLUDEDINCLUSIVENAMESPACE\">";
static final String HTMLIncludedInclusiveNamespaceSuffix = "</span>";
static final String HTMLExcludedInclusiveNamespacePrefix = "<span class=\"EXCLUDEDINCLUSIVENAMESPACE\">";
static final String HTMLExcludedInclusiveNamespaceSuffix = "</span>";
private static final int NODE_BEFORE_DOCUMENT_ELEMENT = -1;
private static final int NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT = 0;
private static final int NODE_AFTER_DOCUMENT_ELEMENT = 1;
static final AttrCompare ATTR_COMPARE = new AttrCompare();
// J+
private XMLSignatureInputDebugger() {
// do nothing
}
/**
* Constructor XMLSignatureInputDebugger
*
* @param xmlSignatureInput the signatur to pretty print
*/
public XMLSignatureInputDebugger(
XMLSignatureInput xmlSignatureInput) {
if (!xmlSignatureInput.isNodeSet()) {
this._xpathNodeSet = null;
} else {
this._xpathNodeSet = xmlSignatureInput._inputNodeSet;
}
}
/**
* Constructor XMLSignatureInputDebugger
*
* @param xmlSignatureInput the signatur to pretty print
* @param inclusiveNamespace
*/
public XMLSignatureInputDebugger(
XMLSignatureInput xmlSignatureInput, Set inclusiveNamespace) {
this(xmlSignatureInput);
this._inclusiveNamespaces = inclusiveNamespace;
}
/**
* Method getHTMLRepresentation
*
* @return The HTML Representation.
* @throws XMLSignatureException
*/
public String getHTMLRepresentation() throws XMLSignatureException {
if ((this._xpathNodeSet == null) || (this._xpathNodeSet.size() == 0)) {
return HTMLPrefix + "<blink>no node set, sorry</blink>"
+ HTMLSuffix;
}
{
// get only a single node as anchor to fetch the owner document
Node n = (Node) this._xpathNodeSet.iterator().next();
this._doc = XMLUtils.getOwnerDocument(n);
}
try {
this._writer = new StringWriter();
this.canonicalizeXPathNodeSet(this._doc);
this._writer.close();
return this._writer.toString();
} catch (IOException ex) {
throw new XMLSignatureException("empty", ex);
} finally {
this._xpathNodeSet = null;
this._doc = null;
this._writer = null;
}
}
/**
* Method canonicalizeXPathNodeSet
*
* @param currentNode
* @throws XMLSignatureException
* @throws IOException
*/
private void canonicalizeXPathNodeSet(Node currentNode)
throws XMLSignatureException, IOException {
int currentNodeType = currentNode.getNodeType();
switch (currentNodeType) {
case Node.DOCUMENT_TYPE_NODE:
default:
break;
case Node.ENTITY_NODE:
case Node.NOTATION_NODE:
case Node.DOCUMENT_FRAGMENT_NODE:
case Node.ATTRIBUTE_NODE:
throw new XMLSignatureException("empty");
case Node.DOCUMENT_NODE:
this._writer.write(HTMLPrefix);
for (Node currentChild = currentNode.getFirstChild(); currentChild != null; currentChild = currentChild
.getNextSibling()) {
this.canonicalizeXPathNodeSet(currentChild);
}
this._writer.write(HTMLSuffix);
break;
case Node.COMMENT_NODE:
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
int position = getPositionRelativeToDocumentElement(currentNode);
if (position == NODE_AFTER_DOCUMENT_ELEMENT) {
this._writer.write("\n");
}
this.outputCommentToWriter((Comment) currentNode);
if (position == NODE_BEFORE_DOCUMENT_ELEMENT) {
this._writer.write("\n");
}
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
break;
case Node.PROCESSING_INSTRUCTION_NODE:
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
position = getPositionRelativeToDocumentElement(currentNode);
if (position == NODE_AFTER_DOCUMENT_ELEMENT) {
this._writer.write("\n");
}
this.outputPItoWriter((ProcessingInstruction) currentNode);
if (position == NODE_BEFORE_DOCUMENT_ELEMENT) {
this._writer.write("\n");
}
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
break;
case Node.TEXT_NODE:
case Node.CDATA_SECTION_NODE:
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
outputTextToWriter(currentNode.getNodeValue());
for (Node nextSibling = currentNode.getNextSibling(); (nextSibling != null)
&& ((nextSibling.getNodeType() == Node.TEXT_NODE) || (nextSibling
.getNodeType() == Node.CDATA_SECTION_NODE)); nextSibling = nextSibling
.getNextSibling()) {
/*
* The XPath data model allows to select only the first of a
* sequence of mixed text and CDATA nodes. But we must output
* them all, so we must search:
*
* @see http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6329
*/
this.outputTextToWriter(nextSibling.getNodeValue());
}
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
break;
case Node.ELEMENT_NODE:
Element currentElement = (Element) currentNode;
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
this._writer.write("<");
this._writer.write(currentElement.getTagName());
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
// we output all Attrs which are available
NamedNodeMap attrs = currentElement.getAttributes();
int attrsLength = attrs.getLength();
Object attrs2[] = new Object[attrsLength];
for (int i = 0; i < attrsLength; i++) {
attrs2[i] = attrs.item(i);
}
Arrays.sort(attrs2, ATTR_COMPARE);
Object attrs3[] = attrs2;
for (int i = 0; i < attrsLength; i++) {
Attr a = (Attr) attrs3[i];
boolean included = this._xpathNodeSet.contains(a);
boolean inclusive = this._inclusiveNamespaces.contains(a
.getName());
if (included) {
if (inclusive) {
// included and inclusive
this._writer
.write(HTMLIncludedInclusiveNamespacePrefix);
} else {
// included and not inclusive
this._writer.write(HTMLIncludePrefix);
}
} else {
if (inclusive) {
// excluded and inclusive
this._writer
.write(HTMLExcludedInclusiveNamespacePrefix);
} else {
// excluded and not inclusive
this._writer.write(HTMLExcludePrefix);
}
}
this.outputAttrToWriter(a.getNodeName(), a.getNodeValue());
if (included) {
if (inclusive) {
// included and inclusive
this._writer
.write(HTMLIncludedInclusiveNamespaceSuffix);
} else {
// included and not inclusive
this._writer.write(HTMLIncludeSuffix);
}
} else {
if (inclusive) {
// excluded and inclusive
this._writer
.write(HTMLExcludedInclusiveNamespaceSuffix);
} else {
// excluded and not inclusive
this._writer.write(HTMLExcludeSuffix);
}
}
}
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
this._writer.write(">");
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
// traversal
for (Node currentChild = currentNode.getFirstChild(); currentChild != null; currentChild = currentChild
.getNextSibling()) {
this.canonicalizeXPathNodeSet(currentChild);
}
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludePrefix);
} else {
this._writer.write(HTMLExcludePrefix);
}
this._writer.write("</");
this._writer.write(currentElement.getTagName());
this._writer.write(">");
if (this._xpathNodeSet.contains(currentNode)) {
this._writer.write(HTMLIncludeSuffix);
} else {
this._writer.write(HTMLExcludeSuffix);
}
break;
}
}
/**
* Checks whether a Comment or ProcessingInstruction is before or after the
* document element. This is needed for prepending or appending "\n"s.
*
* @param currentNode
* comment or pi to check
* @return NODE_BEFORE_DOCUMENT_ELEMENT,
* NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT or
* NODE_AFTER_DOCUMENT_ELEMENT
* @see #NODE_BEFORE_DOCUMENT_ELEMENT
* @see #NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT
* @see #NODE_AFTER_DOCUMENT_ELEMENT
*/
private int getPositionRelativeToDocumentElement(Node currentNode) {
if (currentNode == null) {
return NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT;
}
Document doc = currentNode.getOwnerDocument();
if (currentNode.getParentNode() != doc) {
return NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT;
}
Element documentElement = doc.getDocumentElement();
if (documentElement == null) {
return NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT;
}
if (documentElement == currentNode) {
return NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT;
}
for (Node x = currentNode; x != null; x = x.getNextSibling()) {
if (x == documentElement) {
return NODE_BEFORE_DOCUMENT_ELEMENT;
}
}
return NODE_AFTER_DOCUMENT_ELEMENT;
}
/**
* Normalizes an {@link Attr}ibute value
*
* The string value of the node is modified by replacing
* <UL>
* <LI>all ampersands (&) with <CODE>&amp;</CODE></LI>
* <LI>all open angle brackets (<) with <CODE>&lt;</CODE></LI>
* <LI>all quotation mark characters with <CODE>&quot;</CODE></LI>
* <LI>and the whitespace characters <CODE>#x9</CODE>, #xA, and #xD,
* with character references. The character references are written in
* uppercase hexadecimal with no leading zeroes (for example, <CODE>#xD</CODE>
* is represented by the character reference <CODE>&#xD;</CODE>)</LI>
* </UL>
*
* @param name
* @param value
* @throws IOException
*/
private void outputAttrToWriter(String name, String value)
throws IOException {
this._writer.write(" ");
this._writer.write(name);
this._writer.write("=\"");
int length = value.length();
for (int i = 0; i < length; i++) {
char c = value.charAt(i);
switch (c) {
case '&':
this._writer.write("&amp;");
break;
case '<':
this._writer.write("&lt;");
break;
case '"':
this._writer.write("&quot;");
break;
case 0x09: // '\t'
this._writer.write("&#x9;");
break;
case 0x0A: // '\n'
this._writer.write("&#xA;");
break;
case 0x0D: // '\r'
this._writer.write("&#xD;");
break;
default:
this._writer.write(c);
break;
}
}
this._writer.write("\"");
}
/**
* Normalizes a {@link org.w3c.dom.Comment} value
*
* @param currentPI
* @throws IOException
*/
private void outputPItoWriter(ProcessingInstruction currentPI)
throws IOException {
if (currentPI == null) {
return;
}
this._writer.write("<?");
String target = currentPI.getTarget();
int length = target.length();
for (int i = 0; i < length; i++) {
char c = target.charAt(i);
switch (c) {
case 0x0D:
this._writer.write("&#xD;");
break;
case ' ':
this._writer.write("·");
break;
case '\n':
this._writer.write("¶\n");
break;
default:
this._writer.write(c);
break;
}
}
String data = currentPI.getData();
length = data.length();
if ((data != null) && (length > 0)) {
this._writer.write(" ");
for (int i = 0; i < length; i++) {
char c = data.charAt(i);
switch (c) {
case 0x0D:
this._writer.write("&#xD;");
break;
default:
this._writer.write(c);
break;
}
}
}
this._writer.write("?>");
}
/**
* Method outputCommentToWriter
*
* @param currentComment
* @throws IOException
*/
private void outputCommentToWriter(Comment currentComment)
throws IOException {
if (currentComment == null) {
return;
}
this._writer.write("<!--");
String data = currentComment.getData();
int length = data.length();
for (int i = 0; i < length; i++) {
char c = data.charAt(i);
switch (c) {
case 0x0D:
this._writer.write("&#xD;");
break;
case ' ':
this._writer.write("·");
break;
case '\n':
this._writer.write("¶\n");
break;
default:
this._writer.write(c);
break;
}
}
this._writer.write("-->");
}
/**
* Method outputTextToWriter
*
* @param text
* @throws IOException
*/
private void outputTextToWriter(String text) throws IOException {
if (text == null) {
return;
}
int length = text.length();
for (int i = 0; i < length; i++) {
char c = text.charAt(i);
switch (c) {
case '&':
this._writer.write("&amp;");
break;
case '<':
this._writer.write("&lt;");
break;
case '>':
this._writer.write("&gt;");
break;
case 0xD:
this._writer.write("&#xD;");
break;
case ' ':
this._writer.write("·");
break;
case '\n':
this._writer.write("¶\n");
break;
default:
this._writer.write(c);
break;
}
}
}
}