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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2015 ZeroTier, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef ZT_JSONDB_HPP
#define ZT_JSONDB_HPP
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include <map>
#include <stdexcept>
#include <vector>
#include <algorithm>
#include <unordered_map>
#include <unordered_set>
#include "../node/Constants.hpp"
#include "../node/Utils.hpp"
#include "../node/InetAddress.hpp"
#include "../node/Mutex.hpp"
#include "../ext/json/json.hpp"
#include "../osdep/OSUtils.hpp"
#include "../osdep/Http.hpp"
#include "../osdep/Thread.hpp"
namespace ZeroTier {
/**
* Hierarchical JSON store that persists into the filesystem or via HTTP
*/
class JSONDB
{
public:
struct NetworkSummaryInfo
{
NetworkSummaryInfo() : authorizedMemberCount(0),activeMemberCount(0),totalMemberCount(0),mostRecentDeauthTime(0) {}
std::vector<Address> activeBridges;
std::vector<InetAddress> allocatedIps;
unsigned long authorizedMemberCount;
unsigned long activeMemberCount;
unsigned long totalMemberCount;
uint64_t mostRecentDeauthTime;
};
JSONDB(const std::string &basePath);
~JSONDB();
bool writeRaw(const std::string &n,const std::string &obj);
bool hasNetwork(const uint64_t networkId) const;
bool getNetwork(const uint64_t networkId,nlohmann::json &config) const;
bool getNetworkSummaryInfo(const uint64_t networkId,NetworkSummaryInfo &ns) const;
/**
* @return Bit mask: 0 == none, 1 == network only, 3 == network and member
*/
int getNetworkAndMember(const uint64_t networkId,const uint64_t nodeId,nlohmann::json &networkConfig,nlohmann::json &memberConfig,NetworkSummaryInfo &ns) const;
bool getNetworkMember(const uint64_t networkId,const uint64_t nodeId,nlohmann::json &memberConfig) const;
void saveNetwork(const uint64_t networkId,const nlohmann::json &networkConfig);
void saveNetworkMember(const uint64_t networkId,const uint64_t nodeId,const nlohmann::json &memberConfig);
nlohmann::json eraseNetwork(const uint64_t networkId);
nlohmann::json eraseNetworkMember(const uint64_t networkId,const uint64_t nodeId,bool recomputeSummaryInfo = true);
std::vector<uint64_t> networkIds() const
{
std::vector<uint64_t> r;
Mutex::Lock _l(_networks_m);
for(std::unordered_map<uint64_t,_NW>::const_iterator n(_networks.begin());n!=_networks.end();++n)
r.push_back(n->first);
return r;
}
inline unsigned long memberCount(const uint64_t networkId)
{
Mutex::Lock _l(_networks_m);
std::unordered_map<uint64_t,_NW>::const_iterator i(_networks.find(networkId));
if (i != _networks.end())
return (unsigned long)i->second.members.size();
return 0;
}
template<typename F>
inline void eachMember(const uint64_t networkId,F func)
{
Mutex::Lock _l(_networks_m);
std::unordered_map<uint64_t,_NW>::const_iterator i(_networks.find(networkId));
if (i != _networks.end()) {
for(std::unordered_map< uint64_t,std::vector<uint8_t> >::const_iterator m(i->second.members.begin());m!=i->second.members.end();++m) {
try {
func(networkId,m->first,nlohmann::json::from_msgpack(m->second));
} catch ( ... ) {}
}
}
}
template<typename F>
inline void eachId(F func)
{
Mutex::Lock _l(_networks_m);
for(std::unordered_map<uint64_t,_NW>::const_iterator i(_networks.begin());i!=_networks.end();++i) {
for(std::unordered_map< uint64_t,std::vector<uint8_t> >::const_iterator m(i->second.members.begin());m!=i->second.members.end();++m) {
try {
func(i->first,m->first);
} catch ( ... ) {}
}
}
}
inline std::vector<uint64_t> networksForMember(const uint64_t nodeId)
{
Mutex::Lock _l(_networks_m);
std::unordered_map< uint64_t,std::unordered_set< uint64_t > >::const_iterator m(_members.find(nodeId));
if (m != _members.end()) {
return std::vector<uint64_t>(m->second.begin(),m->second.end());
} else {
return std::vector<uint64_t>();
}
}
void threadMain()
throw();
private:
bool _load(const std::string &p);
void _recomputeSummaryInfo(const uint64_t networkId);
std::string _genPath(const std::string &n,bool create);
std::string _basePath;
InetAddress _httpAddr;
Thread _summaryThread;
std::vector<uint64_t> _summaryThreadToDo;
volatile bool _summaryThreadRun;
Mutex _summaryThread_m;
struct _NW
{
_NW() : summaryInfoLastComputed(0) {}
std::vector<uint8_t> config;
NetworkSummaryInfo summaryInfo;
uint64_t summaryInfoLastComputed;
std::unordered_map< uint64_t,std::vector<uint8_t> > members;
};
std::unordered_map< uint64_t,_NW > _networks;
std::unordered_map< uint64_t,std::unordered_set< uint64_t > > _members;
Mutex _networks_m;
};
} // namespace ZeroTier
#endif
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