/* * libretroshare/src/pqi: p3cfgmgr.h * * 3P/PQI network interface for RetroShare. * * Copyright 2007-2008 by Robert Fernie. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License Version 2 as published by the Free Software Foundation. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA. * * Please report all bugs and problems to "retroshare@lunamutt.com". * */ #ifndef P3_CONFIG_MGR_HEADER #define P3_CONFIG_MGR_HEADER #include #include #include "pqi/pqi_base.h" #include "pqi/pqiindic.h" #include "pqi/pqinetwork.h" #include "util/rsthreads.h" #include "pqi/pqibin.h" /***** Configuration Management ***** * * we need to store: * (1) Certificates. * (2) List of Friends / Net Configuration * (3) Stun List. / DHT peers. * (4) general config. * * * At top level we need: * * - type / filename / size / hash - * and the file signed... * * */ /**** THESE are STORED in CONFIGURATION FILES.... * Cannot be changed * *********************/ const uint32_t CONFIG_TYPE_GENERAL = 0x0001; const uint32_t CONFIG_TYPE_PEERS = 0x0002; const uint32_t CONFIG_TYPE_FSERVER = 0x0003; const uint32_t CONFIG_TYPE_MSGS = 0x0004; const uint32_t CONFIG_TYPE_CACHE_OLDID = 0x0005; const uint32_t CONFIG_TYPE_AUTHGPG = 0x006; const uint32_t CONFIG_TYPE_P3DISC = 0x00B; const uint32_t CONFIG_TYPE_AUTHSSL = 0x00C; /* new FileTransfer */ const uint32_t CONFIG_TYPE_FT_SHARED = 0x0007; const uint32_t CONFIG_TYPE_FT_EXTRA_LIST= 0x0008; const uint32_t CONFIG_TYPE_FT_CONTROL = 0x0009; const uint32_t CONFIG_TYPE_FT_DWLQUEUE = 0x000A; /* turtle router */ const uint32_t CONFIG_TYPE_TURTLE = 0x0020; /* wish these ids where higher... * may move when switch to v0.5 */ const uint32_t CONFIG_TYPE_RANK_LINK = 0x0011; const uint32_t CONFIG_TYPE_CHAT = 0x0012; /* standard services */ const uint32_t CONFIG_TYPE_QBLOG = 0x0101; const uint32_t CONFIG_TYPE_FORUMS = 0x0102; const uint32_t CONFIG_TYPE_CHANNELS = 0x0103; /* CACHE ID Must be at the END so that other configurations * are loaded First (Cache Config --> Cache Loading) */ const uint32_t CONFIG_TYPE_CACHE = 0xff01; class p3ConfigMgr; /*! * Aim is that active objects in retroshare can dervie from this class * and implement their method of saving and loading their configuration */ class pqiConfig { public: pqiConfig(uint32_t t); virtual ~pqiConfig(); /** * loadHash This is the hash that will be compared to confirm saved configuration has not * been tampered with */ virtual bool loadConfiguration(std::string &loadHash) = 0; virtual bool saveConfiguration() = 0; /** * The type of configuration, see ids where this class is declared * @see p3cfgmgr.h */ uint32_t Type(); /** * The name of the configuration file */ std::string Filename(); /** * The hash computed for this configuration, can use this to compare to externally stored hash * for validation checking */ std::string Hash(); protected: /** * Checks if configuration has changed */ void IndicateConfigChanged(); void setHash(std::string h); RsMutex cfgMtx; private: /** * This sets the name of the pqi configuation file */ void setFilename(std::string name); /** * @param an index for the Confind which contains list of configuarations that can be tracked */ bool HasConfigChanged(uint16_t idx); Indicator ConfInd; uint32_t type; std::string filename; std::string hash; friend class p3ConfigMgr; /* so it can access: * setFilename() and HasConfigChanged() */ }; /***********************************************************************************************/ /*! * MUTEX NOTE * None - because no-one calls any functions besides tick() when the system is running. * Takes care of updating, saving configurations within retroshare and also * adding new configurations */ class p3ConfigMgr { public: p3ConfigMgr(std::string bdir, std::string fname, std::string signame); /** * checks and update all added configurations * @see rsserver */ void tick(); /** * save all added configuation including configuration files */ void saveConfiguration(); /** * save all loaded configurations */ void loadConfiguration(); /** * @param file The name for new configuration * @param conf to the configuration to use */ void addConfiguration(std::string file, pqiConfig *conf); /* saves config, and disables further saving * used for exiting the system */ void completeConfiguration(); private: /** * checks if signature and configuration file's signature matches * @return false if signature file does not match configuration file's signature */ bool getSignAttempt(std::string& metaConfigFname, std::string& metaSignFname, BinMemInterface* membio); /** * takes current configuration which is stored in back-up file, and moves it to actual config file * then stores data that was in actual config file into back-up, Corresponding signatures and handled * simlarly in parallel *@param fname the name of the first configuration file checked *@param fname_backup the seconf file, backup, checked if first file does not exist or is corrupted *@param sign file name in which signature is kept *@param sign_backup file name in which signature which correspond to backup config is kept *@param configbio to write config to file *@param signbio to write signature config to file */ bool backedUpFileSave(const std::string& fname, const std::string& fname_backup,const std::string& sign, const std::string& sign_backup, BinMemInterface* configbio, BinMemInterface* signbio); const std::string basedir; const std::string metafname; const std::string metasigfname; RsMutex cfgMtx; /* below is protected */ bool mConfigSaveActive; std::map configs; }; /***************************************************************************************************/ class p3Config: public pqiConfig { public: p3Config(uint32_t t); virtual bool loadConfiguration(std::string &loadHash); virtual bool saveConfiguration(); protected: /* Key Functions to be overloaded for Full Configuration */ virtual RsSerialiser *setupSerialiser() = 0; virtual std::list saveList(bool &cleanup) = 0; virtual bool loadList(std::list load) = 0; /** * callback for mutex unlocking * in derived classes (should only be needed if cleanup = false) */ virtual void saveDone() { return; } private: /** * takes current configuration which is stored in back-up file, and moves it to actual config file * then stores data that was in actual config file into back-up, This is an rs specific solution * @param fname the name of the first configuration file checked * @param fname_backup the seconf file, backup, checked if first file does not exist or is corrupted */ bool backedUpFileSave(const std::string& fname, const std::string& fname_backup, std::list& toSave, bool cleanup); /* * for retrieving hash files */ bool getHashAttempt(const std::string& loadHash, std::string& hashstr, const std::string& fname, std::list& load); }; /* end of p3Config */ class p3GeneralConfig: public p3Config { public: p3GeneralConfig(); // General Configuration System std::string getSetting(std::string opt); void setSetting(std::string opt, std::string val); protected: /* Key Functions to be overloaded for Full Configuration */ virtual RsSerialiser *setupSerialiser(); virtual std::list saveList(bool &cleanup); virtual bool loadList(std::list load); private: /* protected by pqiConfig mutex as well! */ std::map settings; }; #endif // P3_CONFIG_MGR_HEADER