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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#include "vmime/config.hpp"
#if VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_SASL_SUPPORT
#include <stdexcept>
#include <new>
#include <gsasl.h>
#include "vmime/security/sasl/SASLMechanismFactory.hpp"
#include "vmime/security/sasl/builtinSASLMechanism.hpp"
#include "vmime/security/sasl/SASLContext.hpp"
#include "vmime/utility/stringUtils.hpp"
#include "vmime/base.hpp"
#include "vmime/exception.hpp"
namespace vmime {
namespace security {
namespace sasl {
SASLMechanismFactory::SASLMechanismFactory() {
if (gsasl_init(&m_gsaslContext) != GSASL_OK) {
throw std::bad_alloc();
}
}
SASLMechanismFactory::~SASLMechanismFactory() {
gsasl_done(m_gsaslContext);
}
// static
SASLMechanismFactory* SASLMechanismFactory::getInstance() {
static SASLMechanismFactory instance;
return &instance;
}
shared_ptr <SASLMechanism> SASLMechanismFactory::create(
const shared_ptr <SASLContext>& ctx,
const string& name_
) {
const string name(utility::stringUtils::toUpper(name_));
// Check for registered mechanisms
MapType::iterator it = m_mechs.find(name);
if (it != m_mechs.end()) {
return (*it).second->create(ctx, name);
}
// Check for built-in mechanisms
if (isBuiltinMechanism(name)) {
return make_shared <builtinSASLMechanism>(ctx, name);
}
throw exceptions::no_such_mechanism(name);
return null;
}
const std::vector <string> SASLMechanismFactory::getSupportedMechanisms() const {
std::vector <string> list;
// Registered mechanisms
for (MapType::const_iterator it = m_mechs.begin() ;
it != m_mechs.end() ; ++it) {
list.push_back((*it).first);
}
// Built-in mechanisms
char* out = 0;
if (gsasl_client_mechlist(m_gsaslContext, &out) == GSASL_OK) {
// 'out' contains SASL mechanism names, separated by spaces
for (char *start = out, *p = out ; ; ++p) {
if (*p == ' ' || !*p) {
list.push_back(string(start, p));
start = p + 1;
// End of string
if (!*p) break;
}
}
gsasl_free(out);
}
return list;
}
bool SASLMechanismFactory::isMechanismSupported(const string& name) const {
return isBuiltinMechanism(name) || m_mechs.find(name) != m_mechs.end();
}
bool SASLMechanismFactory::isBuiltinMechanism(const string& name) const {
return gsasl_client_support_p(m_gsaslContext, name.c_str()) != 0;
}
} // sasl
} // security
} // vmime
#endif // VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_SASL_SUPPORT
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