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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/*
* XSEC
*
* TXFMDocObject := Class that takes an input Document object ID to start a txfm pipe
*
* $Id$
*
*/
#include <xsec/framework/XSECException.hpp>
#include <xsec/transformers/TXFMDocObject.hpp>
#include "../utils/XSECDOMUtils.hpp"
XERCES_CPP_NAMESPACE_USE
// Construct/Destruct
TXFMDocObject::TXFMDocObject(DOMDocument *doc)
: TXFMBase(doc), fragmentId(NULL), document(NULL), fragmentObject(NULL), type(TXFMBase::DOM_NODE_NONE), mp_env(NULL) {
}
TXFMDocObject::~TXFMDocObject() {
if (fragmentId != NULL)
XSEC_RELEASE_XMLCH(fragmentId);
}
// Methods to set the inputs
void TXFMDocObject::setInput(TXFMBase *newInput) {
// Probably should error, but we store it so we can later clear out pipes.
input = newInput;
}
DOMNode * findDSIGId(DOMNode *current, const XMLCh * newFragmentId, const XSECEnv * env) {
DOMNode *tmp, *ret;
DOMNamedNodeMap *atts;
if (current->getNodeType() == DOMNode::ELEMENT_NODE) {
atts = current->getAttributes();
if (atts != NULL) {
int sz = env->getIdAttributeNameListSize();
for (int i = 0; i < sz ; ++i) {
if (env->getIdAttributeNameListItemIsNS(i) == false) {
tmp = atts->getNamedItem(env->getIdAttributeNameListItem(i));
if (tmp != 0 && strEquals(tmp->getNodeValue(), newFragmentId)) {
// Found it!
return current;
}
}
else {
// This is a namespace aware Id
tmp = atts->getNamedItemNS(env->getIdAttributeNameListItemNS(i),
env->getIdAttributeNameListItem(i));
if (tmp != 0 && strEquals(tmp->getNodeValue(), newFragmentId)) {
return current;
}
}
}
}
}
// Check children
tmp = current->getFirstChild();
while (tmp != NULL) {
if ((ret = findDSIGId(tmp, newFragmentId, env)) != 0)
return ret;
tmp = tmp->getNextSibling();
}
return NULL;
}
void TXFMDocObject::setInput(DOMDocument *doc, const XMLCh * newFragmentId) {
// We have a document fragment marked by an objectID string.
// Now try to find the node that the objectId belongs to
fragmentObject = doc->getElementById(newFragmentId);
if ((fragmentObject == NULL) && (mp_env != NULL) && (mp_env->getIdByAttributeName())) {
// It might be that no DSIG DTD was attached and that the ID is in a
// DSIG element and the application is permitting attribute name based
// Id searches
fragmentObject = findDSIGId(doc, newFragmentId, mp_env);
}
if (fragmentObject == 0)
throw XSECException(XSECException::IDNotFoundInDOMDoc);
document = doc;
fragmentId = XMLString::replicate(newFragmentId);
type = TXFMBase::DOM_NODE_DOCUMENT_FRAGMENT;
}
// --------------------------------------------------------------------------------
// Env Handling
// --------------------------------------------------------------------------------
void TXFMDocObject::setEnv(const XSECEnv * env) {
mp_env = env;
}
void TXFMDocObject::setInput(DOMDocument * doc, DOMNode * newFragmentObject) {
// Have a document fragment directly notified by a DOM_Node
document = doc;
fragmentObject = newFragmentObject;
type = TXFMBase::DOM_NODE_DOCUMENT_NODE;
}
void TXFMDocObject::setInput(DOMDocument *doc) {
document = doc;
type = TXFMBase::DOM_NODE_DOCUMENT;
}
// Methods to get tranform output type and input requirement
TXFMBase::ioType TXFMDocObject::getInputType(void) const {
return TXFMBase::NONE;
}
TXFMBase::ioType TXFMDocObject::getOutputType(void) const {
return TXFMBase::DOM_NODES;
}
TXFMBase::nodeType TXFMDocObject::getNodeType(void) const {
return type;
}
// Methods to get output data
unsigned int TXFMDocObject::readBytes(XMLByte * const toFill, unsigned int maxToFill) {
return 0; // Cannot read a bytestream from a DOM_NODES transform
}
DOMDocument * TXFMDocObject::getDocument() const {
return document;
}
DOMNode * TXFMDocObject::getFragmentNode() const {
return fragmentObject;
}
const XMLCh * TXFMDocObject::getFragmentId() const {
return fragmentId;
}
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