-/*\r
- * Copyright 2001-2006 Internet2\r
- * \r
- * Licensed under the Apache License, Version 2.0 (the "License");\r
- * you may not use this file except in compliance with the License.\r
- * You may obtain a copy of the License at\r
- *\r
- * http://www.apache.org/licenses/LICENSE-2.0\r
- *\r
- * Unless required by applicable law or agreed to in writing, software\r
- * distributed under the License is distributed on an "AS IS" BASIS,\r
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
- * See the License for the specific language governing permissions and\r
- * limitations under the License.\r
- */\r
-\r
-/**\r
- * XMLHelper.cpp\r
- * \r
- * A helper class for working with W3C DOM objects. \r
- */\r
-\r
-#include "internal.h"\r
-#include "exceptions.h"\r
-#include "util/XMLHelper.h"\r
-#include "util/XMLConstants.h"\r
-\r
-#include <xercesc/framework/MemBufFormatTarget.hpp>\r
-#include <xercesc/util/XMLUniDefs.hpp>\r
-\r
-using namespace xmltooling;\r
-\r
-static const XMLCh type[]={chLatin_t, chLatin_y, chLatin_p, chLatin_e, chNull };\r
- \r
-bool XMLHelper::hasXSIType(const DOMElement* e)\r
-{\r
- if (e) {\r
- if (e->hasAttributeNS(XMLConstants::XSI_NS, type)) {\r
- return true;\r
- }\r
- }\r
-\r
- return false;\r
-}\r
-\r
-QName* XMLHelper::getXSIType(const DOMElement* e)\r
-{\r
- DOMAttr* attribute = e->getAttributeNodeNS(XMLConstants::XSI_NS, type);\r
- if (attribute) {\r
- int i;\r
- const XMLCh* attributeValue = attribute->getTextContent();\r
- if (attributeValue && (i=XMLString::indexOf(attributeValue,chColon))>0) {\r
- XMLCh* prefix=new XMLCh[i+1];\r
- XMLString::subString(prefix,attributeValue,0,i);\r
- prefix[i]=chNull;\r
- QName* ret=new QName(e->lookupNamespaceURI(prefix), attributeValue + i + 1, prefix);\r
- delete[] prefix;\r
- return ret;\r
- }\r
- }\r
-\r
- return NULL;\r
-}\r
-\r
-DOMAttr* XMLHelper::getIdAttribute(const DOMElement* domElement)\r
-{\r
- if(!domElement->hasAttributes()) {\r
- return NULL;\r
- }\r
- \r
- DOMNamedNodeMap* attributes = domElement->getAttributes();\r
- DOMAttr* attribute;\r
- for(XMLSize_t i = 0; i < attributes->getLength(); i++) {\r
- attribute = static_cast<DOMAttr*>(attributes->item(i));\r
- if(attribute->isId()) {\r
- return attribute;\r
- }\r
- }\r
- \r
- return NULL;\r
-}\r
-\r
-QName* XMLHelper::getNodeQName(const DOMNode* domNode)\r
-{\r
- if (domNode)\r
- return new QName(domNode->getNamespaceURI(), domNode->getLocalName(), domNode->getPrefix());\r
- return NULL; \r
-}\r
-\r
-QName* XMLHelper::getAttributeValueAsQName(const DOMAttr* attribute)\r
-{\r
- if (!attribute)\r
- return NULL;\r
- \r
- int i;\r
- const XMLCh* attributeValue=attribute->getTextContent();\r
- if (attributeValue && (i=XMLString::indexOf(attributeValue,chColon))>0) {\r
- XMLCh* prefix=new XMLCh[i+1];\r
- XMLString::subString(prefix,attributeValue,0,i);\r
- prefix[i]=chNull;\r
- QName* ret=new QName(attribute->lookupNamespaceURI(prefix), attributeValue + i + 1, prefix);\r
- delete[] prefix;\r
- return ret;\r
- }\r
- \r
- return new QName(attribute->lookupNamespaceURI(NULL), attributeValue);\r
-}\r
-\r
-DOMElement* XMLHelper::appendChildElement(DOMElement* parentElement, DOMElement* childElement)\r
-{\r
- DOMDocument* parentDocument = parentElement->getOwnerDocument();\r
- if (childElement->getOwnerDocument() != parentDocument) {\r
- childElement = static_cast<DOMElement*>(parentDocument->importNode(childElement, true));\r
- }\r
-\r
- parentElement->appendChild(childElement);\r
- return childElement;\r
-}\r
-\r
-void XMLHelper::serialize(const DOMElement* e, std::string& buf)\r
-{\r
- static const XMLCh impltype[] = { chLatin_L, chLatin_S, chNull };\r
- static const XMLCh UTF8[]={ chLatin_U, chLatin_T, chLatin_F, chDigit_8, chNull };\r
- DOMImplementation* impl=DOMImplementationRegistry::getDOMImplementation(impltype);\r
- DOMWriter* serializer=(static_cast<DOMImplementationLS*>(impl))->createDOMWriter();\r
- serializer->setEncoding(UTF8);\r
- try {\r
- MemBufFormatTarget target;\r
- if (!serializer->writeNode(&target,*e))\r
- throw XMLParserException("unable to serialize XML");\r
- buf.erase();\r
- buf.append(reinterpret_cast<const char*>(target.getRawBuffer()),target.getLen());\r
- serializer->release();\r
- }\r
- catch (...) {\r
- serializer->release();\r
- throw;\r
- }\r
-}\r
+/**
+ * Licensed to the University Corporation for Advanced Internet
+ * Development, Inc. (UCAID) under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * UCAID 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.
+ */
+
+/**
+ * XMLHelper.cpp
+ *
+ * A helper class for working with W3C DOM objects.
+ */
+
+#include "internal.h"
+#include "exceptions.h"
+#include "QName.h"
+#include "XMLObject.h"
+#include "util/XMLHelper.h"
+#include "util/XMLConstants.h"
+
+#include <boost/lambda/bind.hpp>
+#include <boost/lambda/if.hpp>
+#include <boost/lambda/lambda.hpp>
+#include <xercesc/framework/MemBufFormatTarget.hpp>
+#include <xercesc/util/XMLUniDefs.hpp>
+
+using namespace xmltooling;
+using namespace xercesc;
+using namespace boost::lambda;
+using namespace boost;
+using namespace std;
+
+static const XMLCh type[]={chLatin_t, chLatin_y, chLatin_p, chLatin_e, chNull };
+
+bool XMLHelper::hasXSIType(const DOMElement* e)
+{
+ return (e && e->hasAttributeNS(xmlconstants::XSI_NS, type));
+}
+
+xmltooling::QName* XMLHelper::getXSIType(const DOMElement* e)
+{
+ DOMAttr* attribute = e->getAttributeNodeNS(xmlconstants::XSI_NS, type);
+ if (attribute) {
+ const XMLCh* attributeValue = attribute->getTextContent();
+ if (attributeValue && *attributeValue) {
+ int i;
+ if ((i=XMLString::indexOf(attributeValue,chColon))>0) {
+ XMLCh* prefix=new XMLCh[i+1];
+ XMLString::subString(prefix,attributeValue,0,i);
+ prefix[i]=chNull;
+ xmltooling::QName* ret=new xmltooling::QName(e->lookupNamespaceURI(prefix), attributeValue + i + 1, prefix);
+ delete[] prefix;
+ return ret;
+ }
+ else {
+ return new xmltooling::QName(e->lookupNamespaceURI(nullptr), attributeValue);
+ }
+ }
+ }
+
+ return nullptr;
+}
+
+DOMAttr* XMLHelper::getIdAttribute(const DOMElement* domElement)
+{
+ if(!domElement->hasAttributes()) {
+ return nullptr;
+ }
+
+ DOMNamedNodeMap* attributes = domElement->getAttributes();
+ DOMAttr* attribute;
+ for(XMLSize_t i = 0; i < attributes->getLength(); ++i) {
+ attribute = static_cast<DOMAttr*>(attributes->item(i));
+ if(attribute->isId()) {
+ return attribute;
+ }
+ }
+
+ return nullptr;
+}
+
+const XMLObject* XMLHelper::getXMLObjectById(const XMLObject& tree, const XMLCh* id)
+{
+ if (XMLString::equals(id, tree.getXMLID()))
+ return &tree;
+
+ const XMLObject* ret;
+ const list<XMLObject*>& children = tree.getOrderedChildren();
+ for (list<XMLObject*>::const_iterator i = children.begin(); i != children.end(); ++i) {
+ if (*i) {
+ ret = getXMLObjectById(*(*i), id);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return nullptr;
+}
+
+XMLObject* XMLHelper::getXMLObjectById(XMLObject& tree, const XMLCh* id)
+{
+ if (XMLString::equals(id, tree.getXMLID()))
+ return &tree;
+
+ XMLObject* ret;
+ const list<XMLObject*>& children = tree.getOrderedChildren();
+ for (list<XMLObject*>::const_iterator i = children.begin(); i != children.end(); ++i) {
+ if (*i) {
+ ret = getXMLObjectById(*(*i), id);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return nullptr;
+}
+
+void XMLHelper::getNonVisiblyUsedPrefixes(const XMLObject& tree, map<xstring,xstring>& prefixes)
+{
+ map<xstring,xstring> child_prefixes;
+ for(list<XMLObject*>::const_iterator i = tree.getOrderedChildren().begin(); i != tree.getOrderedChildren().end(); ++i) {
+ if (*i) {
+ getNonVisiblyUsedPrefixes(*(*i), child_prefixes);
+ }
+ }
+ const set<Namespace>& nsset = tree.getNamespaces();
+ for (set<Namespace>::const_iterator ns = nsset.begin(); ns != nsset.end(); ++ns) {
+ // Check for xmlns:xml.
+ if (XMLString::equals(ns->getNamespacePrefix(), xmlconstants::XML_PREFIX) && XMLString::equals(ns->getNamespaceURI(), xmlconstants::XML_NS))
+ continue;
+ switch (ns->usage()) {
+ case Namespace::Indeterminate:
+ break;
+ case Namespace::VisiblyUsed:
+ {
+ // See if the prefix was noted as non-visible below.
+ const XMLCh* p = ns->getNamespacePrefix() ? ns->getNamespacePrefix() : &chNull;
+ map<xstring,xstring>::iterator decl = child_prefixes.find(p);
+ if (decl != child_prefixes.end()) {
+ // It's declared below, see if it's the same namespace. If so, pull it from the set,
+ // otherwise leave it in the set.
+ if (decl->second == (ns->getNamespaceURI() ? ns->getNamespaceURI() : &chNull))
+ child_prefixes.erase(decl);
+ }
+ break;
+ }
+ case Namespace::NonVisiblyUsed:
+ // It may already be in the map from another branch of the tree, but as long
+ // as it's set to something so the parent knows about it, we're good.
+ prefixes[ns->getNamespacePrefix() ? ns->getNamespacePrefix() : &chNull] = (ns->getNamespaceURI() ? ns->getNamespaceURI() : &chNull);
+ break;
+ }
+ }
+
+ prefixes.insert(child_prefixes.begin(), child_prefixes.end());
+}
+
+xmltooling::QName* XMLHelper::getNodeQName(const DOMNode* domNode)
+{
+ if (domNode)
+ return new xmltooling::QName(domNode->getNamespaceURI(), domNode->getLocalName(), domNode->getPrefix());
+ return nullptr;
+}
+
+xmltooling::QName* XMLHelper::getAttributeValueAsQName(const DOMAttr* attribute)
+{
+ return getNodeValueAsQName(attribute);
+}
+
+xmltooling::QName* XMLHelper::getNodeValueAsQName(const DOMNode* domNode)
+{
+ if (!domNode)
+ return nullptr;
+
+ const XMLCh* value=domNode->getTextContent();
+ if (!value || !*value)
+ return nullptr;
+
+ int i;
+ if ((i=XMLString::indexOf(value,chColon))>0) {
+ XMLCh* prefix=new XMLCh[i+1];
+ XMLString::subString(prefix,value,0,i);
+ prefix[i]=chNull;
+ xmltooling::QName* ret=new xmltooling::QName(domNode->lookupNamespaceURI(prefix), value + i + 1, prefix);
+ delete[] prefix;
+ return ret;
+ }
+
+ return new xmltooling::QName(domNode->lookupNamespaceURI(nullptr), value);
+}
+
+bool XMLHelper::getNodeValueAsBool(const xercesc::DOMNode* domNode, bool def)
+{
+ if (!domNode)
+ return def;
+ const XMLCh* value = domNode->getNodeValue();
+ if (!value || !*value)
+ return def;
+ if (*value == chLatin_t || *value == chDigit_1)
+ return true;
+ else if (*value == chLatin_f || *value == chDigit_0)
+ return false;
+ return def;
+}
+
+DOMElement* XMLHelper::appendChildElement(DOMElement* parentElement, DOMElement* childElement)
+{
+ DOMDocument* parentDocument = parentElement->getOwnerDocument();
+ if (childElement->getOwnerDocument() != parentDocument) {
+ childElement = static_cast<DOMElement*>(parentDocument->importNode(childElement, true));
+ }
+
+ parentElement->appendChild(childElement);
+ return childElement;
+}
+
+bool XMLHelper::isNodeNamed(const xercesc::DOMNode* n, const XMLCh* ns, const XMLCh* local)
+{
+ return (n && XMLString::equals(local,n->getLocalName()) && XMLString::equals(ns,n->getNamespaceURI()));
+}
+
+const XMLCh* XMLHelper::getTextContent(const DOMElement* e)
+{
+ DOMNode* child = e ? e->getFirstChild() : nullptr;
+ while (child) {
+ if (child->getNodeType() == DOMNode::TEXT_NODE)
+ return child->getNodeValue();
+ child = child->getNextSibling();
+ }
+ return nullptr;
+}
+
+DOMElement* XMLHelper::getFirstChildElement(const DOMNode* n, const XMLCh* localName)
+{
+ DOMNode* child = n ? n->getFirstChild() : nullptr;
+ while (child && child->getNodeType() != DOMNode::ELEMENT_NODE)
+ child = child->getNextSibling();
+ if (child && localName) {
+ if (!XMLString::equals(localName,child->getLocalName()))
+ return getNextSiblingElement(child, localName);
+ }
+ return static_cast<DOMElement*>(child);
+}
+
+DOMElement* XMLHelper::getLastChildElement(const DOMNode* n, const XMLCh* localName)
+{
+ DOMNode* child = n ? n->getLastChild() : nullptr;
+ while (child && child->getNodeType() != DOMNode::ELEMENT_NODE)
+ child = child->getPreviousSibling();
+ if (child && localName) {
+ if (!XMLString::equals(localName,child->getLocalName()))
+ return getPreviousSiblingElement(child, localName);
+ }
+ return static_cast<DOMElement*>(child);
+}
+
+DOMElement* XMLHelper::getFirstChildElement(const DOMNode* n, const XMLCh* ns, const XMLCh* localName)
+{
+ DOMElement* e = getFirstChildElement(n, localName);
+ while (e && !XMLString::equals(e->getNamespaceURI(),ns))
+ e = getNextSiblingElement(e, localName);
+ return e;
+}
+
+DOMElement* XMLHelper::getLastChildElement(const DOMNode* n, const XMLCh* ns, const XMLCh* localName)
+{
+ DOMElement* e = getLastChildElement(n, localName);
+ while (e && !XMLString::equals(e->getNamespaceURI(),ns))
+ e = getPreviousSiblingElement(e, localName);
+ return e;
+}
+
+DOMElement* XMLHelper::getNextSiblingElement(const DOMNode* n, const XMLCh* localName)
+{
+ DOMNode* sib = n ? n->getNextSibling() : nullptr;
+ while (sib && sib->getNodeType() != DOMNode::ELEMENT_NODE)
+ sib = sib->getNextSibling();
+ if (sib && localName) {
+ if (!XMLString::equals(localName,sib->getLocalName()))
+ return getNextSiblingElement(sib, localName);
+ }
+ return static_cast<DOMElement*>(sib);
+}
+
+DOMElement* XMLHelper::getPreviousSiblingElement(const DOMNode* n, const XMLCh* localName)
+{
+ DOMNode* sib = n ? n->getPreviousSibling() : nullptr;
+ while (sib && sib->getNodeType() != DOMNode::ELEMENT_NODE)
+ sib = sib->getPreviousSibling();
+ if (sib && localName) {
+ if (!XMLString::equals(localName,sib->getLocalName()))
+ return getPreviousSiblingElement(sib, localName);
+ }
+ return static_cast<DOMElement*>(sib);
+}
+
+DOMElement* XMLHelper::getNextSiblingElement(const DOMNode* n, const XMLCh* ns, const XMLCh* localName)
+{
+ DOMElement* e = getNextSiblingElement(n, localName);
+ while (e && !XMLString::equals(e->getNamespaceURI(),ns))
+ e = getNextSiblingElement(e, localName);
+ return e;
+}
+
+DOMElement* XMLHelper::getPreviousSiblingElement(const DOMNode* n, const XMLCh* ns, const XMLCh* localName)
+{
+ DOMElement* e = getPreviousSiblingElement(n, localName);
+ while (e && !XMLString::equals(e->getNamespaceURI(),ns))
+ e = getPreviousSiblingElement(e, localName);
+ return e;
+}
+
+string XMLHelper::getAttrString(const DOMElement* e, const char* defValue, const XMLCh* localName, const XMLCh* ns)
+{
+ if (e) {
+ auto_ptr_char val(e->getAttributeNS(ns, localName));
+ if (val.get() && *val.get())
+ return val.get();
+ }
+ return defValue ? defValue : "";
+}
+
+int XMLHelper::getAttrInt(const DOMElement* e, int defValue, const XMLCh* localName, const XMLCh* ns)
+{
+ if (e) {
+ const XMLCh* val = e->getAttributeNS(ns, localName);
+ if (val && *val) {
+ try {
+ return XMLString::parseInt(val);
+ }
+ catch (XMLException&) {
+ }
+ }
+ }
+ return defValue;
+}
+
+bool XMLHelper::getAttrBool(const DOMElement* e, bool defValue, const XMLCh* localName, const XMLCh* ns)
+{
+ if (e) {
+ const XMLCh* val = e->getAttributeNS(ns, localName);
+ if (val) {
+ if (*val == chLatin_t || *val == chDigit_1)
+ return true;
+ if (*val == chLatin_f || *val == chDigit_0)
+ return false;
+ }
+ }
+ return defValue;
+}
+
+void XMLHelper::serialize(const DOMNode* n, std::string& buf, bool pretty)
+{
+ static const XMLCh impltype[] = { chLatin_L, chLatin_S, chNull };
+ static const XMLCh UTF8[]={ chLatin_U, chLatin_T, chLatin_F, chDash, chDigit_8, chNull };
+
+ MemBufFormatTarget target;
+ DOMImplementation* impl=DOMImplementationRegistry::getDOMImplementation(impltype);
+
+#ifdef XMLTOOLING_XERCESC_COMPLIANT_DOMLS
+ DOMLSSerializer* serializer = static_cast<DOMImplementationLS*>(impl)->createLSSerializer();
+ XercesJanitor<DOMLSSerializer> janitor(serializer);
+ if (pretty && serializer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, pretty))
+ serializer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, pretty);
+ DOMLSOutput *theOutput = static_cast<DOMImplementationLS*>(impl)->createLSOutput();
+ XercesJanitor<DOMLSOutput> j_theOutput(theOutput);
+ theOutput->setEncoding(UTF8);
+ theOutput->setByteStream(&target);
+ if (!serializer->write(n, theOutput))
+ throw XMLParserException("unable to serialize XML");
+#else
+ DOMWriter* serializer = static_cast<DOMImplementationLS*>(impl)->createDOMWriter();
+ XercesJanitor<DOMWriter> janitor(serializer);
+ serializer->setEncoding(UTF8);
+ if (pretty && serializer->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint, pretty))
+ serializer->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint, pretty);
+ if (!serializer->writeNode(&target, *n))
+ throw XMLParserException("unable to serialize XML");
+#endif
+
+ buf.erase();
+ buf.append(reinterpret_cast<const char*>(target.getRawBuffer()),target.getLen());
+}
+
+namespace {
+ class StreamFormatTarget : public XMLFormatTarget
+ {
+ public:
+ StreamFormatTarget(std::ostream& out) : m_out(out) {}
+ ~StreamFormatTarget() {}
+
+ void writeChars(const XMLByte *const toWrite, const xsecsize_t count, XMLFormatter *const formatter) {
+ m_out.write(reinterpret_cast<const char*>(toWrite),count);
+ }
+
+ void flush() {
+ m_out.flush();
+ }
+
+ private:
+ std::ostream& m_out;
+ };
+};
+
+ostream& XMLHelper::serialize(const DOMNode* n, ostream& out, bool pretty)
+{
+ static const XMLCh impltype[] = { chLatin_L, chLatin_S, chNull };
+ static const XMLCh UTF8[]={ chLatin_U, chLatin_T, chLatin_F, chDash, chDigit_8, chNull };
+
+ StreamFormatTarget target(out);
+ DOMImplementation* impl=DOMImplementationRegistry::getDOMImplementation(impltype);
+
+#ifdef XMLTOOLING_XERCESC_COMPLIANT_DOMLS
+ DOMLSSerializer* serializer = static_cast<DOMImplementationLS*>(impl)->createLSSerializer();
+ XercesJanitor<DOMLSSerializer> janitor(serializer);
+ if (pretty && serializer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, pretty))
+ serializer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, pretty);
+ DOMLSOutput *theOutput = static_cast<DOMImplementationLS*>(impl)->createLSOutput();
+ XercesJanitor<DOMLSOutput> j_theOutput(theOutput);
+ theOutput->setEncoding(UTF8);
+ theOutput->setByteStream(&target);
+ if (!serializer->write(n, theOutput))
+ throw XMLParserException("unable to serialize XML");
+#else
+ DOMWriter* serializer=(static_cast<DOMImplementationLS*>(impl))->createDOMWriter();
+ XercesJanitor<DOMWriter> janitor(serializer);
+ serializer->setEncoding(UTF8);
+ if (pretty && serializer->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint, pretty))
+ serializer->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint, pretty);
+ if (!serializer->writeNode(&target,*n))
+ throw XMLParserException("unable to serialize XML");
+#endif
+
+ return out;
+}
+
+ostream& xmltooling::operator<<(ostream& ostr, const DOMNode& node)
+{
+ return XMLHelper::serialize(&node, ostr);
+}
+
+ostream& xmltooling::operator<<(ostream& ostr, const XMLObject& obj)
+{
+ try {
+ return ostr << *(obj.marshall());
+ }
+ catch (DOMException& ex) {
+ auto_ptr_char msg(ex.getMessage());
+ throw XMLParserException(msg.get());
+ }
+}
projects / shibboleth / cpp-xmltooling.git / blobdiff