RetroShare/libretroshare/src/pqi/p3cfgmgr.h
chrisparker126 e2c8053eee documentation - p3configmgr.h
added rstatus config constant id

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2719 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2010-04-15 11:26:44 +00:00

349 lines
9.0 KiB
C++

/*
* 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 <string>
#include <map>
#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;
const uint32_t CONFIG_TYPE_STATUS = 0x0013;
/* 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;
//! abstract class for configuration saving
/*!
* 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();
/**
* loads configuration of object
* @param 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;
/**
* save configuration of object
*/
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:
/**
* @param bdir base directory: where config files will be saved
* @param fname file name for global configuration
* @param signame file name for global signature
*/
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
* creates global signature file
*/
void saveConfiguration();
/**
* loads all 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<uint32_t, pqiConfig *> configs;
};
/***************************************************************************************************/
//! abstract class for configuration saving, aimed at rs services that uses RsItem config data
/*!
* The aim of this class is to provide a way for rs services and object to save particular
* configurations an items (and load them up as well).
*/
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;
/**
* saves list of derived object
* @return list of config items derived object wants to saves
*/
virtual std::list<RsItem *> saveList(bool &cleanup) = 0;
/**
* loads up list of configs items for derived object
* @param load list of config items to load up
*/
virtual bool loadList(std::list<RsItem *> 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<RsItem* >& toSave,
bool cleanup);
/*
* for retrieving hash files
*/
bool getHashAttempt(const std::string& loadHash, std::string& hashstr, const std::string& fname, std::list<RsItem *>& 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<RsItem *> saveList(bool &cleanup);
virtual bool loadList(std::list<RsItem *> load);
private:
/* protected by pqiConfig mutex as well! */
std::map<std::string, std::string> settings;
};
#endif // P3_CONFIG_MGR_HEADER