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124 lines
3.7 KiB
124 lines
3.7 KiB
/* |
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2012-2013 ZeroTier Networks LLC |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* ZeroTier may be used and distributed under the terms of the GPLv3, which |
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
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* |
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* If you would like to embed ZeroTier into a commercial application or |
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* redistribute it in a modified binary form, please contact ZeroTier Networks |
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* LLC. Start here: http://www.zerotier.com/ |
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*/ |
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#ifndef ZT_SOFTWAREUPDATER_HPP |
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#define ZT_SOFTWAREUPDATER_HPP |
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#include <stdint.h> |
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#include "Constants.hpp" |
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#include "Mutex.hpp" |
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#include "Utils.hpp" |
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#include "HttpClient.hpp" |
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#include "Defaults.hpp" |
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namespace ZeroTier { |
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class RuntimeEnvironment; |
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/** |
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* Software updater |
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*/ |
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class SoftwareUpdater |
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{ |
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public: |
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SoftwareUpdater(const RuntimeEnvironment *renv); |
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~SoftwareUpdater(); |
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/** |
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* Called on each version message from a peer |
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* |
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* If a peer has a newer version, that causes an update to be started. |
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* |
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* @param vmaj Peer's major version |
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* @param vmin Peer's minor version |
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* @param rev Peer's revision |
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*/ |
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inline void sawRemoteVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev) |
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{ |
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const uint64_t tmp = packVersion(vmaj,vmin,rev); |
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if (tmp > _myVersion) { |
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Mutex::Lock _l(_lock); |
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if ((_status == UPDATE_STATUS_IDLE)&&(!_die)&&(ZT_DEFAULTS.updateLatestNfoURL.length())) { |
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const uint64_t now = Utils::now(); |
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if ((now - _lastUpdateAttempt) >= ZT_UPDATE_MIN_INTERVAL) { |
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_lastUpdateAttempt = now; |
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_status = UPDATE_STATUS_GETTING_NFO; |
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HttpClient::GET(ZT_DEFAULTS.updateLatestNfoURL,HttpClient::NO_HEADERS,ZT_UPDATE_HTTP_TIMEOUT,&_cbHandleGetLatestVersionInfo,this); |
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} |
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} |
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} |
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} |
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/** |
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* Check for updates now regardless of last check time or version |
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*/ |
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inline void checkNow() |
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{ |
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Mutex::Lock _l(_lock); |
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if (_status == UPDATE_STATUS_IDLE) { |
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_lastUpdateAttempt = Utils::now(); |
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_status = UPDATE_STATUS_GETTING_NFO; |
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HttpClient::GET(ZT_DEFAULTS.updateLatestNfoURL,HttpClient::NO_HEADERS,ZT_UPDATE_HTTP_TIMEOUT,&_cbHandleGetLatestVersionInfo,this); |
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} |
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} |
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/** |
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* Pack three-component version into a 64-bit integer |
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* |
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* @param vmaj Major version (0..65535) |
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* @param vmin Minor version (0..65535) |
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* @param rev Revision (0..65535) |
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* @return Version packed into an easily comparable 64-bit integer |
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*/ |
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static inline uint64_t packVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev) |
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throw() |
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{ |
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return ( ((uint64_t)(vmaj & 0xffff) << 32) | ((uint64_t)(vmin & 0xffff) << 16) | (uint64_t)(rev & 0xffff) ); |
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} |
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private: |
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static void _cbHandleGetLatestVersionInfo(void *arg,int code,const std::string &url,bool onDisk,const std::string &body); |
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static void _cbHandleGetLatestVersionBinary(void *arg,int code,const std::string &url,bool onDisk,const std::string &body); |
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const RuntimeEnvironment *_r; |
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const uint64_t _myVersion; |
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volatile uint64_t _lastUpdateAttempt; |
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volatile enum { |
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UPDATE_STATUS_IDLE, |
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UPDATE_STATUS_GETTING_NFO, |
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UPDATE_STATUS_GETTING_FILE |
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} _status; |
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volatile bool _die; |
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Address _signedBy; |
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std::string _signature; |
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Mutex _lock; |
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}; |
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} // namespace ZeroTier |
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#endif
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