org.apache.camel.component.xmlsecurity.api

Class XmlSignatureHelper

java.lang.Object

org.apache.camel.component.xmlsecurity.api.XmlSignatureHelper

public final class XmlSignatureHelper
extends Object

Helps to construct the transformations and the canonicalization methods for the XML Signature generator.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	XmlSignatureHelper.XPathAndFilter

Method Summary

Modifier and Type	Method and Description
static AlgorithmMethod	getBase64Transform() Returns a configuration for a base64 transformation.
static AlgorithmMethod	getCanonicalizationMethod(String algorithm) Returns a configuration for a canonicalization algorithm.
static AlgorithmMethod	getCanonicalizationMethod(String algorithm, List<String> inclusiveNamespacePrefixes) Returns a configuration for a canonicalization algorithm.
static Document	getDocument(Node node)
static AlgorithmMethod	getEnvelopedTransform()
static List<Node>	getTextAndElementChildren(Node node)
static List<AlgorithmMethod>	getTransforms(List<AlgorithmMethod> list)
static AlgorithmMethod	getXPath2Transform(List<XmlSignatureHelper.XPathAndFilter> xpathAndFilterList) Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.
static AlgorithmMethod	getXPath2Transform(List<XmlSignatureHelper.XPathAndFilter> xpathAndFilterList, Map<String,String> namespaceMap) Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.
static AlgorithmMethod	getXPath2Transform(String xpath, String filter) Returns a configuration for an XPATH2 transformation.
static AlgorithmMethod	getXPath2Transform(String xpath, String filter, Map<String,String> namespaceMap) Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.
static XPathExpression	getXPathExpression(XPathFilterParameterSpec xpathFilter)
static XPathFilterParameterSpec	getXpathFilter(String xpath)
static XPathFilterParameterSpec	getXpathFilter(String xpath, Map<String,String> namespaceMap)
static AlgorithmMethod	getXPathTransform(String xpath) Returns a configuration for an XPATH transformation.
static AlgorithmMethod	getXPathTransform(String xpath, Map<String,String> namespaceMap) Returns a configuration for an XPATH transformation which needs a namespace map.
static AlgorithmMethod	getXslTranform(InputStream is) Returns a configuration for an XSL transformation.
static AlgorithmMethod	getXslTransform(String path) Returns a configuration for an XSL transformation.
static DocumentBuilder	newDocumentBuilder(Boolean disallowDoctypeDecl)
static DocumentBuilder	newDocumentBuilder(Boolean disallowDoctypeDecl, Schema schema)
protected static InputStream	readXslTransform(String path)
static byte[]	tranformTextNodeToByteArray(Node node) Deprecated.
static byte[]	tranformTextNodeToByteArray(Node node, String encoding) Trannsforms a text node to byte array using a certain character encoding.
static void	transformNonTextNodeToOutputStream(Node node, OutputStream os, boolean omitXmlDeclaration) Deprecated.
static void	transformNonTextNodeToOutputStream(Node node, OutputStream os, boolean omitXmlDeclaration, String encoding) Serializes a node using a certain character encoding.
static void	transformToOutputStream(Node node, OutputStream os, boolean omitXmlDeclaration) Deprecated.
static void	transformToOutputStream(Node node, OutputStream os, boolean omitXmlDeclaration, String encoding)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getCanonicalizationMethod

public static AlgorithmMethod getCanonicalizationMethod(String algorithm)

Returns a configuration for a canonicalization algorithm.

Parameters:

algorithm - algorithm URI

Returns:

canonicalization

Throws:

IllegalArgumentException - if algorithm is null

getCanonicalizationMethod

public static AlgorithmMethod getCanonicalizationMethod(String algorithm,
                                                        List<String> inclusiveNamespacePrefixes)

Returns a configuration for a canonicalization algorithm.

Parameters:

algorithm - algorithm URI

inclusiveNamespacePrefixes - namespace prefixes which should be treated like in the inclusive canonicalization, only relevant if the algorithm is exclusive

Returns:

canonicalization

Throws:

IllegalArgumentException - if algorithm is null

getEnvelopedTransform

public static AlgorithmMethod getEnvelopedTransform()

getBase64Transform

public static AlgorithmMethod getBase64Transform()

Returns a configuration for a base64 transformation.

Returns:

Base64 transformation

getXPathTransform

public static AlgorithmMethod getXPathTransform(String xpath)

Returns a configuration for an XPATH transformation.

Parameters:

xpath - XPATH expression

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpath is null

getXPathTransform

public static AlgorithmMethod getXPathTransform(String xpath,
                                                Map<String,String> namespaceMap)

Returns a configuration for an XPATH transformation which needs a namespace map.

Parameters:

xpath - XPATH expression

namespaceMap - namespace map, key is the prefix, value is the namespace, can be null

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpath is null

getXpathFilter

public static XPathFilterParameterSpec getXpathFilter(String xpath,
                                                      Map<String,String> namespaceMap)

getXpathFilter

public static XPathFilterParameterSpec getXpathFilter(String xpath)

getXPathExpression

public static XPathExpression getXPathExpression(XPathFilterParameterSpec xpathFilter)
                                          throws XPathExpressionException

Throws:

XPathExpressionException

getXPath2Transform

public static AlgorithmMethod getXPath2Transform(String xpath,
                                                 String filter)

Returns a configuration for an XPATH2 transformation.

Parameters:

xpath - XPATH expression

filter - possible values are "intersect", "subtract", "union"

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpath or filter is null, or is neither "intersect", nor "subtract", nor "union"

getXPath2Transform

public static AlgorithmMethod getXPath2Transform(String xpath,
                                                 String filter,
                                                 Map<String,String> namespaceMap)

Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.

Parameters:

xpathAndFilterList - list of XPATH expressions with their filters

namespaceMap - namespace map, key is the prefix, value is the namespace, can be null

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpathAndFilterList is null or empty, or the specified filter values are neither "intersect", nor "subtract", nor "union"

getXPath2Transform

public static AlgorithmMethod getXPath2Transform(List<XmlSignatureHelper.XPathAndFilter> xpathAndFilterList,
                                                 Map<String,String> namespaceMap)

Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.

Parameters:

xpathAndFilterList - list of XPATH expressions with their filters

namespaceMap - namespace map, key is the prefix, value is the namespace, can be null

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpathAndFilterList is null or empty, or the specified filter values are neither "intersect", nor "subtract", nor "union"

getXPath2Transform

public static AlgorithmMethod getXPath2Transform(List<XmlSignatureHelper.XPathAndFilter> xpathAndFilterList)

Returns a configuration for an XPATH2 transformation which consists of several XPATH expressions.

Parameters:

xpathAndFilterList - list of XPATH expressions with their filters

Returns:

XPATH transformation

Throws:

IllegalArgumentException - if xpathAndFilterList is null or empty, or the specified filte values are neither "intersect", nor "subtract", nor "union"

getXslTransform

public static AlgorithmMethod getXslTransform(String path)
                                       throws Exception

Returns a configuration for an XSL transformation.

Parameters:

path - path to the XSL file in the classpath

Returns:

XSL transform

Throws:

IllegalArgumentException - if path is null

IllegalStateException - if the XSL file cannot be found

Exception - if an error during the reading of the XSL file occurs

getXslTranform

public static AlgorithmMethod getXslTranform(InputStream is)
                                      throws SAXException,
                                             IOException,
                                             ParserConfigurationException

Returns a configuration for an XSL transformation.

Parameters:

is - input stream of the XSL

Returns:

XSL transform

Throws:

IllegalArgumentException - if is is null

Exception - if an error during the reading of the XSL file occurs

SAXException

IOException

ParserConfigurationException

readXslTransform

protected static InputStream readXslTransform(String path)
                                       throws Exception

Throws:

Exception

getTransforms

public static List<AlgorithmMethod> getTransforms(List<AlgorithmMethod> list)

getTextAndElementChildren

public static List<Node> getTextAndElementChildren(Node node)

newDocumentBuilder

public static DocumentBuilder newDocumentBuilder(Boolean disallowDoctypeDecl)
                                          throws ParserConfigurationException

Throws:

ParserConfigurationException

newDocumentBuilder

public static DocumentBuilder newDocumentBuilder(Boolean disallowDoctypeDecl,
                                                 Schema schema)
                                          throws ParserConfigurationException

Throws:

ParserConfigurationException

transformToOutputStream

public static void transformToOutputStream(Node node,
                                           OutputStream os,
                                           boolean omitXmlDeclaration,
                                           String encoding)
                                    throws Exception

Throws:

Exception

transformToOutputStream

@Deprecated
public static void transformToOutputStream(Node node,
                                                       OutputStream os,
                                                       boolean omitXmlDeclaration)
                                                throws Exception

Deprecated.

Use transformToOutputStream(Node, OutputStream, boolean, String) instead.

Throws:

Exception

transformNonTextNodeToOutputStream

@Deprecated
public static void transformNonTextNodeToOutputStream(Node node,
                                                                  OutputStream os,
                                                                  boolean omitXmlDeclaration)
                                                           throws Exception

Deprecated.

Use transformNonTextNodeToOutputStream(Node, OutputStream, boolean, String) instead.

Throws:

Exception

transformNonTextNodeToOutputStream

public static void transformNonTextNodeToOutputStream(Node node,
                                                      OutputStream os,
                                                      boolean omitXmlDeclaration,
                                                      String encoding)
                                               throws Exception

Serializes a node using a certain character encoding.

Parameters:

node - DOM node to serialize

os - output stream, to which the node is serialized

omitXmlDeclaration - indicator whether to omit the XML declaration or not

encoding - character encoding, can be null, if null then "UTF-8" is used

Throws:

Exception

tranformTextNodeToByteArray

@Deprecated
public static byte[] tranformTextNodeToByteArray(Node node)

Deprecated.

use tranformTextNodeToByteArray(Node, String) instead.

tranformTextNodeToByteArray

public static byte[] tranformTextNodeToByteArray(Node node,
                                                 String encoding)

Trannsforms a text node to byte array using a certain character encoding.

Parameters:

node - text node

encoding - character encoding, can be null, if null then UTF-8 is used

Returns:

byte array, null if the node has not text content

Throws:

IllegalStateException - if the encoding is not supported

getDocument

public static Document getDocument(Node node)