/* * Copyright (c) 2010 Remko Tronçon * Licensed under the GNU General Public License v3. * See Documentation/Licenses/GPLv3.txt for more information. */ #include <Swiften/IDN/StringPrep.h> #include <stringprep.h> #include <vector> #include <cassert> #include <Swiften/Base/SafeAllocator.h> using namespace Swift; namespace { static const int MAX_STRINGPREP_SIZE = 1024; const Stringprep_profile* getLibIDNProfile(StringPrep::Profile profile) { switch(profile) { case StringPrep::NamePrep: return stringprep_nameprep; break; case StringPrep::XMPPNodePrep: return stringprep_xmpp_nodeprep; break; case StringPrep::XMPPResourcePrep: return stringprep_xmpp_resourceprep; break; case StringPrep::SASLPrep: return stringprep_saslprep; break; } assert(false); return 0; } template<typename StringType, typename ContainerType> ContainerType getStringPrepared(const StringType& s, StringPrep::Profile profile) { ContainerType input(s.begin(), s.end()); input.resize(MAX_STRINGPREP_SIZE); if (stringprep(&input[0], MAX_STRINGPREP_SIZE, static_cast<Stringprep_profile_flags>(0), getLibIDNProfile(profile)) == 0) { return input; } else { return ContainerType(); } } } namespace Swift { std::string StringPrep::getPrepared(const std::string& s, Profile profile) { std::vector<char> preparedData = getStringPrepared< std::string, std::vector<char> >(s, profile); if (preparedData.empty()) { throw std::exception(); } return std::string(vecptr(preparedData)); } SafeByteArray StringPrep::getPrepared(const SafeByteArray& s, Profile profile) { std::vector<char, SafeAllocator<char> > preparedData = getStringPrepared<SafeByteArray, std::vector<char, SafeAllocator<char> > >(s, profile); if (preparedData.empty()) { throw std::exception(); } return createSafeByteArray(reinterpret_cast<const char*>(vecptr(preparedData))); } }