Re-integrate in-filesystem DB into new controller DB structure.

1 files changed, 192 insertions, 0 deletions

diff --git a/attic/JSONDB.hpp b/attic/JSONDB.hpp
new file mode 100644
index 00000000..db909cb0
--- /dev/null
+++ b/attic/JSONDB.hpp
@@ -0,0 +1,192 @@
+/*
+ * 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/Thread.hpp"
+
+namespace ZeroTier {
+
+class EmbeddedNetworkController;
+
+/**
+ * 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;
+		int64_t mostRecentDeauthTime;
+	};
+
+	JSONDB(const std::string &basePath,EmbeddedNetworkController *parent);
+	~JSONDB();
+
+	/**
+	 * Write a JSON object to the data store
+	 *
+	 * It's important that obj contain a valid JSON object with no newlines (jsonDump with -1
+	 * for indentation), since newline-delimited JSON is what nodeJS's IPC speaks and this
+	 * is important in Central-harnessed mode.
+	 *
+	 * @param n Path name of object
+	 * @param obj Object in single-line no-CRs JSON object format (OSUtils::jsonDump(obj,-1))
+	 * @return True if write appears successful
+	 */
+	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 _addOrUpdate(const nlohmann::json &j);
+	bool _load(const std::string &p);
+	void _recomputeSummaryInfo(const uint64_t networkId);
+	std::string _genPath(const std::string &n,bool create);
+
+	EmbeddedNetworkController *const _parent;
+	std::string _basePath;
+	int _rawInput,_rawOutput;
+	Mutex _rawLock;
+
+	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;
+	bool _dataReady;
+	Mutex _networks_m;
+};
+
+} // namespace ZeroTier
+
+#endif