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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include <Swiften/Avatars/AvatarFileStorage.h>
#include <iostream>
#include <boost/filesystem/fstream.hpp>
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
#include <Swiften/Base/foreach.h>
#include <Swiften/StringCodecs/SHA1.h>
#include <Swiften/StringCodecs/Hexify.h>
namespace Swift {
AvatarFileStorage::AvatarFileStorage(const boost::filesystem::path& avatarsDir, const boost::filesystem::path& avatarsFile) : avatarsDir(avatarsDir), avatarsFile(avatarsFile) {
if (boost::filesystem::exists(avatarsFile)) {
boost::property_tree::ptree tree;
try {
boost::property_tree::xml_parser::read_xml(avatarsFile.string(), tree);
}
catch (const boost::property_tree::xml_parser::xml_parser_error& e) {
std::cerr << "Error reading avatars file: " << e.filename() << ":" << e.line() << ": " << e.message() << std::endl;
}
foreach(const boost::property_tree::ptree::value_type &v, tree.get_child("avatars")) {
try {
JID jid(v.second.get<std::string>("jid"));
std::string hash(v.second.get<std::string>("hash"));
if (jid.isValid()) {
jidAvatars.insert(std::make_pair(jid, hash));
}
}
catch (const boost::property_tree::ptree_error& e) {
std::cerr << "Invalid avatar value: " << e.what() << std::endl;
}
}
}
}
bool AvatarFileStorage::hasAvatar(const std::string& hash) const {
return boost::filesystem::exists(getAvatarPath(hash));
}
void AvatarFileStorage::addAvatar(const std::string& hash, const ByteArray& avatar) {
assert(Hexify::hexify(SHA1::getHash(avatar)) == hash);
boost::filesystem::path avatarPath = getAvatarPath(hash);
if (!boost::filesystem::exists(avatarPath.parent_path())) {
try {
boost::filesystem::create_directories(avatarPath.parent_path());
}
catch (const boost::filesystem::filesystem_error& e) {
std::cerr << "ERROR: " << e.what() << std::endl;
}
}
boost::filesystem::ofstream file(avatarPath, boost::filesystem::ofstream::binary|boost::filesystem::ofstream::out);
file.write(reinterpret_cast<const char*>(avatar.getData()), avatar.getSize());
file.close();
}
boost::filesystem::path AvatarFileStorage::getAvatarPath(const std::string& hash) const {
return avatarsDir / hash;
}
ByteArray AvatarFileStorage::getAvatar(const std::string& hash) const {
ByteArray data;
data.readFromFile(getAvatarPath(hash).string());
return data;
}
void AvatarFileStorage::setAvatarForJID(const JID& jid, const std::string& hash) {
std::pair<JIDAvatarMap::iterator, bool> r = jidAvatars.insert(std::make_pair(jid, hash));
if (r.second) {
saveJIDAvatars();
}
else if (r.first->second != hash) {
r.first->second = hash;
saveJIDAvatars();
}
}
std::string AvatarFileStorage::getAvatarForJID(const JID& jid) const {
JIDAvatarMap::const_iterator i = jidAvatars.find(jid);
return i == jidAvatars.end() ? "" : i->second;
}
void AvatarFileStorage::saveJIDAvatars() {
boost::property_tree::ptree tree;
for (JIDAvatarMap::const_iterator i = jidAvatars.begin(); i != jidAvatars.end(); ++i) {
boost::property_tree::ptree entry;
entry.put("jid", i->first.toString());
entry.put("hash", i->second);
tree.add_child("avatars.avatar", entry);
}
try {
boost::property_tree::xml_parser::write_xml(avatarsFile.string(), tree);
}
catch (const boost::property_tree::xml_parser::xml_parser_error& e) {
std::cerr << "Error writing avatars file: " << e.filename() << ": " << e.message() << std::endl;
}
}
}
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Swift