org.apache.camel.component.xmlsecurity.api

Class DefaultXmlSignature2Message

java.lang.Object

org.apache.camel.component.xmlsecurity.api.DefaultXmlSignature2Message

All Implemented Interfaces:

XmlSignature2Message

public class DefaultXmlSignature2Message
extends Object
implements XmlSignature2Message

Maps the XML signature to a camel message. A output node is determined from the XML signature document via a node search and then serialized and set to the output message body.

There are three output node search types supported: "Default", "ElementName", and "XPath". All these search types support enveloped XML signature or enveloping XML signature.

• The "ElementName" search uses the local name and namespace specified in the search value to determine the output element from the XML signature document. With the input parameter 'RemoveSignatureElements", you can specify whether the signature elements should be removed from the resulting output document. This flag shall be used for enveloped XML signatures.
• The "XPath" search uses an XPath expression to evaluate the output node. In this case the output node can be of type Element, TextNode, or Document. With the input parameter 'RemoveSignatureElements", you can specify whether the signature elements should be removed from the resulting output document. This flag shall be used for enveloped XML signatures.
• The "Default" search is explained in more detail below.

Default Output Node Search:

In the enveloped XML signature case, the XML document without the signature part is returned in the message body.

In the enveloping XML signature case, the message body is determined from a referenced Object element in the following way:

• Only same document references are taken into account (URI must start with '#').
• Also indirect same document references to an object via manifest are taken into account.
• The resulting number of object references must be 1.
• The referenced object must contain exactly 1 DOMStructure.
• The node of the DOMStructure is serialized to a byte array and added as body to the message.
This does mean that the enveloping XML signature must have either the structure

     <Signature>
         <SignedInfo>
            <Reference URI="#object"/>       
            <!-- further references possible but they must not point to an Object or Manifest containing an object reference -->
            ...
         </SignedInfo>
     
         <Object Id="object">
              <!-- contains the DOM node which should be extracted to the message body -->
         <Object>
         <!-- further object elements possible which are not referenced-->
         ...
         (<KeyInfo>)?
     </Signature>
     
 

or the structure

     <Signature>
         <SignedInfo>
            <Reference URI="#manifest"/>       
            <!-- further references  are possible but they must not point to an Object or other manifest containing an object reference -->
            ...
         </SignedInfo>
     
         <Object >
            <Manifest Id="manifest">
               <Reference URI=#object/>
            </Manifest>
         </Objet>
         <Object Id="object">
             <!-- contains the DOM node which should be extracted to the message body -->
         </Object>
          <!-- further object elements possible which are not referenced -->
         ...
         (<KeyInfo>)?
     </Signature>
     
 

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.camel.component.xmlsecurity.api.XmlSignature2Message

XmlSignature2Message.Input

Field Summary

Fields

Modifier and Type	Field and Description
static String	OUTPUT_NODE_SEARCH_TYPE_DEFAULT Search type 'Default' for determining the output node.
static String	OUTPUT_NODE_SEARCH_TYPE_ELEMENT_NAME Search type 'ElementName' for determining the output element.
static String	OUTPUT_NODE_SEARCH_TYPE_XPATH Search type 'XPath' for determining the output node.

Constructor Summary

Constructors

Constructor and Description
DefaultXmlSignature2Message()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addManifestReferencedObjects(List<XMLObject> allObjects, List<XMLObject> referencedObjects, String manifestId)
protected void	checkSearchValueNotNull(XmlSignature2Message.Input input)
protected void	checkSearchValueOfType(Class<?> cl, XmlSignature2Message.Input input)
protected void	checkStringSarchValueNotEmpty(String searchValue, String outputNodeSearchType)
protected DOMStructure	getDomStructureForMessageBody(List<Reference> relevantReferences, List<XMLObject> relevantObjects) Returns the DOM structure which is transformed to a byte array and set to the camel message body.
protected Node	getNodeForMessageBodyInEnvelopingCase(XmlSignature2Message.Input input)
protected String	getNonEmptyStringSearchValue(XmlSignature2Message.Input input)
protected List<XMLObject>	getObjectsForMessageMapping(XmlSignature2Message.Input input) Returns the objects which must be taken into account for the mapping to the camel message.
protected Node	getOutputElementViaLocalNameAndNamespace(XmlSignature2Message.Input input)
protected Node	getOutputNodeViaXPath(XmlSignature2Message.Input input)
protected Manifest	getReferencedManifest(List<XMLObject> objects, String id)
protected XMLObject	getReferencedObject(List<XMLObject> objects, String id)
protected List<XMLObject>	getReferencedSameDocumentObjects(List<Reference> relevantReferences, List<XMLObject> relevantObjects)
protected List<Reference>	getReferencesForMessageMapping(XmlSignature2Message.Input input) Returns the references whose referenced objects are taken into account for the message body.
protected String	getSameDocumentReferenceUri(Reference ref)
protected boolean	isEnveloping(XmlSignature2Message.Input input) Checks whether the XML document has as root element the signature element.
void	mapToMessage(XmlSignature2Message.Input input, org.apache.camel.Message output) Maps the references and objects of an XML signature to the camel message.
protected Boolean	omitXmlDeclaration(org.apache.camel.Message message, XmlSignature2Message.Input input)
protected void	removeSignatureElements(Node node) Removes the Signature elements from the document.
protected void	transformNodeToByteArrayAndSetToOutputMessage(XmlSignature2Message.Input input, org.apache.camel.Message output, Node node)

Methods inherited from class java.lang.Object

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

Field Detail

OUTPUT_NODE_SEARCH_TYPE_DEFAULT

public static final String OUTPUT_NODE_SEARCH_TYPE_DEFAULT

Search type 'Default' for determining the output node.

See Also:

Constant Field Values

OUTPUT_NODE_SEARCH_TYPE_ELEMENT_NAME

public static final String OUTPUT_NODE_SEARCH_TYPE_ELEMENT_NAME

Search type 'ElementName' for determining the output element.

See Also:

Constant Field Values

OUTPUT_NODE_SEARCH_TYPE_XPATH

public static final String OUTPUT_NODE_SEARCH_TYPE_XPATH

Search type 'XPath' for determining the output node. Search value must be of type XPathFilterParameterSpec.

See Also:

Constant Field Values

Constructor Detail

DefaultXmlSignature2Message

public DefaultXmlSignature2Message()

Method Detail

mapToMessage

public void mapToMessage(XmlSignature2Message.Input input,
                org.apache.camel.Message output)
                  throws Exception

Description copied from interface: XmlSignature2Message

Maps the references and objects of an XML signature to the camel message.

Specified by:

mapToMessage in interface XmlSignature2Message

Parameters:

input - input

output - output message

Throws:

Exception

transformNodeToByteArrayAndSetToOutputMessage

protected void transformNodeToByteArrayAndSetToOutputMessage(XmlSignature2Message.Input input,
                                                 org.apache.camel.Message output,
                                                 Node node)
                                                      throws TransformerFactoryConfigurationError,
                                                             TransformerConfigurationException,
                                                             TransformerException,
                                                             IOException

Throws:

TransformerFactoryConfigurationError

TransformerConfigurationException

TransformerException

IOException

getOutputNodeViaXPath

protected Node getOutputNodeViaXPath(XmlSignature2Message.Input input)
                              throws Exception

Throws:

Exception

getOutputElementViaLocalNameAndNamespace

protected Node getOutputElementViaLocalNameAndNamespace(XmlSignature2Message.Input input)
                                                 throws Exception

Throws:

Exception

getNonEmptyStringSearchValue

protected String getNonEmptyStringSearchValue(XmlSignature2Message.Input input)
                                       throws Exception

Throws:

Exception

checkSearchValueOfType

protected void checkSearchValueOfType(Class<?> cl,
                          XmlSignature2Message.Input input)
                               throws Exception

Throws:

Exception

checkStringSarchValueNotEmpty

protected void checkStringSarchValueNotEmpty(String searchValue,
                                 String outputNodeSearchType)
                                      throws Exception

Throws:

Exception

checkSearchValueNotNull

protected void checkSearchValueNotNull(XmlSignature2Message.Input input)
                                throws Exception

Throws:

Exception

getNodeForMessageBodyInEnvelopingCase

protected Node getNodeForMessageBodyInEnvelopingCase(XmlSignature2Message.Input input)
                                              throws Exception

Throws:

Exception

removeSignatureElements

protected void removeSignatureElements(Node node)

Removes the Signature elements from the document.

Parameters:

doc - document

isEnveloping

protected boolean isEnveloping(XmlSignature2Message.Input input)
                        throws Exception

Checks whether the XML document has as root element the signature element.

Parameters:

input - XML signature input

Returns:

true if the root element of the xml signature document is the signature element; otherwise false

Throws:

Exception

omitXmlDeclaration

protected Boolean omitXmlDeclaration(org.apache.camel.Message message,
                         XmlSignature2Message.Input input)

getReferencesForMessageMapping

protected List<Reference> getReferencesForMessageMapping(XmlSignature2Message.Input input)
                                                  throws Exception

Returns the references whose referenced objects are taken into account for the message body. This message you can use to filter the relevant references from the references provided by the input parameter.

Parameters:

input - references and objects

Returns:

relevant references for the mapping to the camel message

Throws:

Exception - if an error occurs

getObjectsForMessageMapping

protected List<XMLObject> getObjectsForMessageMapping(XmlSignature2Message.Input input)
                                               throws Exception

Returns the objects which must be taken into account for the mapping to the camel message.

Parameters:

input - references and objects

Returns:

relevant objects for the mapping to camel message

Throws:

Exception - if an error occurs

getDomStructureForMessageBody

protected DOMStructure getDomStructureForMessageBody(List<Reference> relevantReferences,
                                         List<XMLObject> relevantObjects)
                                              throws Exception

Returns the DOM structure which is transformed to a byte array and set to the camel message body.

Parameters:

relevantReferences - input from method #getReferencesForMessageMapping(ReferencesAndObjects)

relevantObjects - input from method #getObjectsForMessageMapping(ReferencesAndObjects)

Returns:

dom structure

Throws:

Exception - if an error occurs

getReferencedSameDocumentObjects

protected List<XMLObject> getReferencedSameDocumentObjects(List<Reference> relevantReferences,
                                               List<XMLObject> relevantObjects)

addManifestReferencedObjects

protected void addManifestReferencedObjects(List<XMLObject> allObjects,
                                List<XMLObject> referencedObjects,
                                String manifestId)

getSameDocumentReferenceUri

protected String getSameDocumentReferenceUri(Reference ref)

getReferencedManifest

protected Manifest getReferencedManifest(List<XMLObject> objects,
                             String id)

getReferencedObject

protected XMLObject getReferencedObject(List<XMLObject> objects,
                            String id)