RetroShare/retroshare-nogui/src/introserver.cc
2016-07-23 22:14:43 -04:00

665 lines
14 KiB
C++

/*
* RetroShare C++ Interface.
*
* Copyright 2012-2012 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 2.1 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".
*
*/
#include <retroshare/rsmsgs.h>
#include <retroshare/rspeers.h>
#include <retroshare/rsinit.h>
#include "util/folderiterator.h"
#include "util/rsdir.h"
#include "util/rsstring.h"
#include "introserver.h"
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <time.h>
#include <fstream>
#include <iostream>
#define RSIS_CHECKTIME 60
//#define MAX_PEER_AGE (3600 * 24 * 14) // 2 weeks.
#define MAX_PEER_AGE (3600 * 24 * 3) // 3 days.
//#define MAX_PEER_AGE (600) // 10 minutes - for testing
#define LOBBY_BASENAME "Chat Server"
RsIntroServer::RsIntroServer()
:mStartTS(0)
{
std::cerr << "RsIntroServer::RsIntroServer()";
std::cerr << std::endl;
mStartTS = time(NULL);
mLastCheck = 0;
mCertCheckTime = 0;
mMaxPeerAge = MAX_PEER_AGE;
std::string sslDir = RsInit::RsProfileConfigDirectory();
std::string certsDir = sslDir + "/NEWCERTS";
std::string peersDir = sslDir + "/STORAGE";
RsDirUtil::checkCreateDirectory(certsDir);
RsDirUtil::checkCreateDirectory(peersDir);
// chmod certsDir -> so WebServer can write to it.
// might be UNIX specific!
chmod(certsDir.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
mPeersFile = peersDir + "/peers.txt";
mCertLoadPath = certsDir;
std::string genericLobbyName;
removeAllPeers();
setupChatLobbies(genericLobbyName);
createConfigFiles(peersDir, genericLobbyName);
mStorePeers = new RsIntroStore(mPeersFile);
mStorePeers->loadPeers();
restoreStoredPeers();
}
int RsIntroServer::tick()
{
time_t now = time(NULL);
if (mLastCheck + RSIS_CHECKTIME < now )
{
std::cerr << "RsIntroServer::tick() Check Cycle";
std::cerr << std::endl;
checkForNewCerts();
cleanOldPeers();
displayPeers();
mLastCheck = now;
}
return 0;
}
int RsIntroServer::setupChatLobbies(std::string &genericLobbyName)
{
std::cerr << "RsIntroServer::setupChatLobbies()";
std::cerr << std::endl;
// get a date/time string.
time_t now = time(NULL);
std::string tstr = ctime(&now);
std::string trimmedstr = tstr.substr(4, 12);
genericLobbyName = LOBBY_BASENAME;
std::string englishLobbyName = LOBBY_BASENAME;
std::string germanLobbyName = LOBBY_BASENAME;
std::string frenchLobbyName = LOBBY_BASENAME;
std::string spanishLobbyName = LOBBY_BASENAME;
std::string englishLobbyTopic = "Welcome!";
std::string germanLobbyTopic = "Willkommen !";
std::string frenchLobbyTopic = "Bienvenue !";
std::string spanishLobbyTopic = "Bienvenido !";
genericLobbyName += " " + trimmedstr;
englishLobbyName += " (EN) " + trimmedstr;
germanLobbyName += " (DE) " + trimmedstr;
frenchLobbyName += " (FR) " + trimmedstr;
spanishLobbyName += " (ES) " + trimmedstr;
std::string englishTopic = "Connect to this lobby to meet new friends" ;
std::string frenchTopic = "Connectez vous a ce lobby pour rencontrer de nouveaux amis" ;
std::string germanTopic = englishTopic ;
std::list<std::string> emptyList;
uint32_t lobby_privacy_type = RS_CHAT_LOBBY_PRIVACY_LEVEL_PUBLIC;
mEnglishLobby = rsMsgs->createChatLobby(englishLobbyName, englishLobbyTopic, emptyList, lobby_privacy_type);
mFrenchLobby = rsMsgs->createChatLobby(frenchLobbyName, frenchLobbyTopic, emptyList, lobby_privacy_type);
mGermanLobby = rsMsgs->createChatLobby(germanLobbyName, germanLobbyTopic, emptyList, lobby_privacy_type);
mSpanishLobby = rsMsgs->createChatLobby(spanishLobbyName, spanishLobbyTopic, emptyList, lobby_privacy_type);
return 1;
}
int RsIntroServer::createConfigFiles(std::string peersDir, std::string lobbyName)
{
/* write three files: server key, hyperlink & lobbyname */
std::string serverfile = peersDir + "/serverkey.txt";
//std::string hyperfile = peersDir + "/hyperlink.txt";
std::string lobbyfile = peersDir + "/lobbyname.txt";
std::ofstream fd1(serverfile.c_str());
//std::ofstream fd2(hyperfile.c_str());
std::ofstream fd3(lobbyfile.c_str());
if (fd1)
{
fd1 << rsPeers->GetRetroshareInvite(false);
fd1 << std::endl;
fd1.close();
}
if (fd3)
{
fd3 << lobbyName << std::endl;
fd3.close();
}
return 1;
}
int RsIntroServer::addCertificateFile(std::string filepath)
{
std::cerr << "RsIntroServer::addCertificateFile(" << filepath << ")";
std::cerr << std::endl;
std::string certGPG;
FILE *fd = fopen(filepath.c_str(), "r");
if (!fd)
{
std::cerr << "RsIntroServer::addCertificateFile(" << filepath << ") FAILED to open file";
std::cerr << std::endl;
return 0;
}
#define MAX_BUFFER 10240
char BUFFER[MAX_BUFFER];
while(BUFFER == fgets(BUFFER, MAX_BUFFER, fd))
{
certGPG += BUFFER;
}
std::cerr << "Read in Certificate: " << std::endl;
std::cerr << "==========================================================" << std::endl;
std::cerr << certGPG;
std::cerr << std::endl;
std::cerr << "==========================================================" << std::endl;
fclose(fd) ;
return addNewUser(certGPG);
}
int RsIntroServer::addNewUser(std::string certGPG)
{
std::cerr << "RsIntroServer::addNewUser()";
std::cerr << std::endl;
RsPeerDetails pd;
uint32_t error_number;
bool ok = rsPeers->loadDetailsFromStringCert(certGPG, pd,error_number);
if (ok)
{
std::string gpgId = pd.gpg_id;
std::string sslId;
if (!pd.isOnlyGPGdetail)
{
sslId = pd.id;
}
std::cerr << "RsIntroServer::addNewUser() GPGID: " << gpgId << " SSLID: " << sslId;
std::cerr << std::endl;
rsPeers->addFriend(sslId, gpgId);
/* add to internal storage */
mStorePeers->addPeer(pd);
mStorePeers->savePeers();
}
else
{
std::cerr << "RsIntroServer::addNewUser() Load Failed!";
std::cerr << std::endl;
return 0;
}
return 1;
}
int RsIntroServer::checkForNewCerts()
{
std::cerr << "RsIntroServer::checkForNewCerts()";
std::cerr << std::endl;
/* check for new files */
librs::util::FolderIterator dirIt(mCertLoadPath);
if (!dirIt.isValid())
{
std::cerr << "RsIntroServer::checkForNewCerts()";
std::cerr << " Missing Dir: " << mCertLoadPath << std::endl;
#ifdef RSIS_DEBUG
#endif
return false;
}
std::list<std::string> newCertFiles;
std::list<std::string>::iterator it;
time_t now = time(NULL);
time_t oldCheckTime = mCertCheckTime;
mCertCheckTime = now;
struct stat64 buf;
for(;dirIt.isValid();dirIt.next())
{
/* check entry type */
std::string fname;
dirIt.d_name(fname);
std::string fullname = mCertLoadPath + "/" + fname;
#ifdef RSIS_DEBUG
std::cerr << "calling stats on " << fullname <<std::endl;
#endif
#ifdef WINDOWS_SYS
std::wstring wfullname;
librs::util::ConvertUtf8ToUtf16(fullname, wfullname);
if (-1 != _wstati64(wfullname.c_str(), &buf))
#else
if (-1 != stat64(fullname.c_str(), &buf))
#endif
{
#ifdef RSIS_DEBUG
std::cerr << "buf.st_mode: " << buf.st_mode <<std::endl;
#endif
if (S_ISDIR(buf.st_mode))
{
/* ignore */
#ifdef RSIS_DEBUG
std::cerr << "Ignoring Directory" << std::endl;
#endif
}
else if (S_ISREG(buf.st_mode))
{
/* check timestamp, push into queue */
if ((buf.st_mtime > oldCheckTime) && (buf.st_size > MIN_CERT_SIZE))
{
#ifdef RSIS_DEBUG
std::cerr << "Adding New File: " << fullname << std::endl;
#endif
newCertFiles.push_back(fullname);
}
else
{
#ifdef RSIS_DEBUG
std::cerr << "Ignoring Old File: " << fullname << std::endl;
std::cerr << "\t it is: " << now - buf.st_mtime << " secs old" << std::endl;
#endif
}
}
}
}
for(it = newCertFiles.begin(); it != newCertFiles.end(); it++)
{
std::cerr << "RsIntroServer::checkForNewCerts() adding: " << *it;
std::cerr << std::endl;
/* add Certificate */
addCertificateFile(*it);
sleep(1);
std::cerr << "RsIntroServer::checkForNewCerts() removing: " << *it;
std::cerr << std::endl;
remove(it->c_str());
}
return 1;
}
int RsIntroServer::cleanOldPeers()
{
std::cerr << "RsIntroServer::cleanOldPeers()";
std::cerr << std::endl;
std::list<std::string> oldIds;
std::list<std::string>::iterator it;
time_t now = time(NULL);
time_t before = now - mMaxPeerAge;
mStorePeers->getPeersBeforeTS(before, oldIds);
for(it = oldIds.begin(); it != oldIds.end(); it++)
{
std::cerr << "RsIntroServer::cleanOldPeers() Removing: " << *it;
std::cerr << std::endl;
rsPeers->removeFriend(*it);
mStorePeers->removePeer(*it);
}
mStorePeers->savePeers();
return 1;
}
int RsIntroServer::restoreStoredPeers()
{
std::cerr << "RsIntroServer::restoreStoredPeers()";
std::cerr << std::endl;
std::list<std::string> oldIds;
std::list<std::string>::iterator it;
time_t now = time(NULL);
mStorePeers->getPeersBeforeTS(now, oldIds);
for(it = oldIds.begin(); it != oldIds.end(); it++)
{
std::cerr << "RsIntroServer::restoreStoredPeers() Restoring: " << *it;
std::cerr << std::endl;
std::string emptySslId;
rsPeers->addFriend(emptySslId, *it);
}
return 1;
}
int RsIntroServer::removeAllPeers()
{
std::cerr << "RsIntroServer::removeAllPeers()";
std::cerr << std::endl;
std::list<std::string> oldIds;
std::list<std::string>::iterator it;
rsPeers->getGPGAcceptedList(oldIds);
for(it = oldIds.begin(); it != oldIds.end(); it++)
{
std::cerr << "RsIntroServer::removeAllPeers() Removing: " << *it;
std::cerr << std::endl;
rsPeers->removeFriend(*it);
}
return 1;
}
int RsIntroServer::displayPeers()
{
std::cerr << "RsIntroServer::displayPeers()";
std::cerr << std::endl;
std::list<std::string> ids;
std::list<std::string>::iterator it;
rsPeers->getGPGAcceptedList(ids);
for(it = ids.begin(); it != ids.end(); it++)
{
std::cerr << "GPGID: " << *it;
if (mStorePeers->isValid(*it))
{
//std::cerr << " RsIS Flags: " << flags;
}
else
{
std::cerr << " Warning Unknown by RsIS ";
}
std::cerr << " => SSLIDS: ";
std::list<std::string> sslIds;
std::list<std::string>::iterator sit;
rsPeers->getAssociatedSSLIds(*it, sslIds);
for(sit = sslIds.begin(); sit != sslIds.end(); sit++)
{
std::cerr << *sit;
if (rsPeers->isOnline(*sit))
{
std::cerr << " (ONLINE!), ";
}
else
{
std::cerr << " (Offline), ";
}
}
std::cerr << std::endl;
}
return 1;
}
/*****************************************************************************************/
RsIntroStore::RsIntroStore(std::string storefile)
{
std::cerr << "RsIntroStore::RsIntroStore(" << storefile << ")";
std::cerr << std::endl;
mStoreFile = storefile;
mTempStoreFile = storefile + ".tmp";
}
bool RsIntroStore::addPeer(const RsPeerDetails &pd)
{
std::cerr << "RsIntroStore::addPeer()";
std::cerr << std::endl;
std::string gpgId = pd.gpg_id;
std::map<std::string, storeData>::iterator it;
it = mGpgData.find(gpgId);
if (it != mGpgData.end())
{
std::cerr << "RsIntroStore::addPeer() ERROR peer already exists!";
std::cerr << std::endl;
return false;
}
storeData sd;
sd.mAdded = time(NULL);
sd.mFlags = 0;
mGpgData[gpgId] = sd;
return true;
}
bool RsIntroStore::removePeer(std::string gpgId)
{
std::cerr << "RsIntroStore::removePeer()";
std::cerr << std::endl;
std::map<std::string, storeData>::iterator it;
it = mGpgData.find(gpgId);
if (it != mGpgData.end())
{
mGpgData.erase(it);
return true;
}
return false;
}
bool RsIntroStore::isValid(std::string gpgId)
{
std::map<std::string, storeData>::iterator it;
it = mGpgData.find(gpgId);
return (it != mGpgData.end());
}
uint32_t RsIntroStore::getFlags(std::string gpgId)
{
std::cerr << "RsIntroStore::removePeer()";
std::cerr << std::endl;
std::map<std::string, storeData>::iterator it;
it = mGpgData.find(gpgId);
if (it != mGpgData.end())
{
return it->second.mFlags;
}
return 0;
}
bool RsIntroStore::getPeersBeforeTS(time_t ts, std::list<std::string> &plist)
{
std::cerr << "RsIntroStore::getPeersBeforeTS()";
std::cerr << std::endl;
std::map<std::string, storeData>::iterator it;
for(it = mGpgData.begin(); it != mGpgData.end(); it++)
{
std::cerr << "\t Checking: " << it->first << " Added: " << it->second.mAdded << " vs TS: " << ts;
std::cerr << std::endl;
if (it->second.mAdded < ts)
{
std::cerr << "YES Adding OLD: " << it->first;
std::cerr << std::endl;
plist.push_back(it->first);
}
}
return true;
}
bool RsIntroStore::savePeers()
{
std::cerr << "RsIntroStore::savePeers()";
std::cerr << std::endl;
FILE *fd = fopen(mTempStoreFile.c_str(), "w");
if (!fd)
{
std::cerr << "RsIntroStore::savePeers() Cannot open tmp file";
std::cerr << std::endl;
return false;
}
std::map<std::string, storeData>::iterator it;
for(it = mGpgData.begin(); it != mGpgData.end(); it++)
{
fprintf(fd, "%s %d %u\n", it->first.c_str(), (int) it->second.mAdded, it->second.mFlags);
}
fclose(fd);
/* now move to final location */
RsDirUtil::renameFile(mTempStoreFile,mStoreFile);
return true;
}
bool RsIntroStore::loadPeers()
{
std::cerr << "RsIntroStore::loadPeers()";
std::cerr << std::endl;
/* read from the file */
FILE *fd = fopen(mStoreFile.c_str(), "r");
if (!fd)
{
std::cerr << "RsIntroStore::loadPeers() Cannot open file, trying tmp";
std::cerr << std::endl;
fd = fopen(mTempStoreFile.c_str(), "r");
if (!fd)
{
std::cerr << "RsIntroStore::loadPeers() Cannot open tmp file";
std::cerr << std::endl;
return false;
}
}
char BUFFER[MAX_BUFFER];
char certId[MAX_BUFFER];
while(BUFFER == fgets(BUFFER, MAX_BUFFER, fd))
{
int addTs;
uint32_t flags;
if (3 == sscanf(BUFFER, "%s %d %u", certId, &addTs, &flags))
{
storeData sd;
sd.mAdded = addTs;
sd.mFlags = flags;
std::string gpgId(certId);
mGpgData[gpgId] = sd;
std::cerr << "\t" << gpgId << " Added: " << addTs << " Flags: " << flags;
std::cerr << std::endl;
}
}
fclose(fd);
return true;
}