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/**
* 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.
*/
/**
* InlineLogoMetadataFilter.cpp
*
* Removes inline logos from a metadata instance
*/
#include "internal.h"
#include "saml2/metadata/Metadata.h"
#include "saml2/metadata/MetadataFilter.h"
#include <boost/lambda/bind.hpp>
#include <boost/lambda/casts.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/scoped_ptr.hpp>
#include <xmltooling/logging.h>
using namespace opensaml::saml2md;
using namespace opensaml::saml2;
using namespace xmltooling::logging;
using namespace xmltooling;
using namespace boost::lambda;
using namespace boost;
using namespace std;
namespace opensaml {
namespace saml2md {
class SAML_DLLLOCAL InlineLogoMetadataFilter : public MetadataFilter
{
public:
InlineLogoMetadataFilter(const DOMElement* e, bool deprecationSupport=true) {}
~InlineLogoMetadataFilter() {}
const char* getId() const { return EXCLUDE_METADATA_FILTER; }
void doFilter(const MetadataFilterContext* ctx, XMLObject& xmlObject) const;
private:
void filterGroup(EntitiesDescriptor*) const;
void filterEntity(EntityDescriptor*) const;
};
MetadataFilter* SAML_DLLLOCAL InlineLogoMetadataFilterFactory(const DOMElement* const & e, bool deprecationSupport)
{
return new InlineLogoMetadataFilter(e);
}
};
};
void InlineLogoMetadataFilter::doFilter(const MetadataFilterContext* ctx, XMLObject& xmlObject) const
{
EntitiesDescriptor* group = dynamic_cast<EntitiesDescriptor*>(&xmlObject);
if (group) {
filterGroup(group);
}
else {
EntityDescriptor* entity = dynamic_cast<EntityDescriptor*>(&xmlObject);
if (entity) {
filterEntity(entity);
}
else {
throw MetadataFilterException(INLINELOGO_METADATA_FILTER " MetadataFilter was given an improper metadata instance to filter.");
}
}
}
void InlineLogoMetadataFilter::filterGroup(EntitiesDescriptor* entities) const
{
const vector<EntityDescriptor*>& v = const_cast<const EntitiesDescriptor*>(entities)->getEntityDescriptors();
for_each(v.begin(), v.end(), lambda::bind(&InlineLogoMetadataFilter::filterEntity, this, _1));
const vector<EntitiesDescriptor*>& v2 = const_cast<const EntitiesDescriptor*>(entities)->getEntitiesDescriptors();
for_each(v2.begin(), v2.end(), lambda::bind(&InlineLogoMetadataFilter::filterGroup, this, _1));
}
void InlineLogoMetadataFilter::filterEntity(EntityDescriptor* entity) const
{
static const XMLCh prefix[] = { chLatin_d, chLatin_a, chLatin_t, chLatin_a, chColon, chNull };
const list<XMLObject*>& children = const_cast<const EntityDescriptor*>(entity)->getOrderedChildren();
for (list<XMLObject*>::const_iterator child = children.begin(); child != children.end(); ++child) {
if (dynamic_cast<const RoleDescriptor*>(*child)) {
const Extensions* ext = dynamic_cast<const RoleDescriptor*>(*child)->getExtensions();
if (!ext)
continue;
const vector<XMLObject*>& exts = ext->getUnknownXMLObjects();
for (vector<XMLObject*>::const_iterator ext = exts.begin(); ext != exts.end(); ++ext) {
UIInfo* info = dynamic_cast<UIInfo*>(*ext);
if (info) {
VectorOf(Logo) v = info->getLogos();
for (VectorOf(Logo)::size_type i = 0; i < v.size(); ) {
const XMLCh* url = v[i]->getURL();
if (XMLString::startsWithI(url, prefix)) {
v.erase(v.begin() + i);
}
else {
i++;
}
}
break;
}
}
}
}
}
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