Completed Basic configuration storage:

* Added read/writetofile() fns to BinMemInterface
 * Added SignData() fns to AuthXPGP.
 * Added Certificate saving to AuthXPGP.
 * added Signatures to Configuration.
 * now discards messages if Hash is wrong (p3msgservice)



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@341 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/pqi/authxpgp.cc

@@ -82,7 +82,7 @@ xpgpcert::xpgpcert(XPGP *xpgp, std::string pid)
 
 
 AuthXPGP::AuthXPGP()
-	:init(0), sslctx(NULL), pkey(NULL)
+	:init(0), sslctx(NULL), pkey(NULL), mToSaveCerts(false), mConfigSaveActive(true)
 {
 }
 
@@ -679,6 +679,9 @@ bool AuthXPGP::TrustCertificate(std::string id, bool totrust)
 		/* reevaluate the auth of the xpgp */
 		cert->trustLvl = XPGP_auth_certificate(pgp_keyring, cert->certificate);
 		valid = true;
+
+		/* resave if changed trust setting */
+		mToSaveCerts = true;
 	}
 
 	xpgpMtx.unlock(); /**** UNLOCK ****/
@@ -755,8 +758,62 @@ bool AuthXPGP::AuthCertificate(std::string id)
 }
 
 
-	
 	/* Sign / Encrypt / Verify Data (TODO) */
+	
+bool AuthXPGP::SignData(std::string input, std::string &sign)
+{
+	return SignData(input.c_str(), input.length(), sign);
+}
+
+bool AuthXPGP::SignData(const void *data, const uint32_t len, std::string &sign)
+{
+
+	RsStackMutex stack(xpgpMtx);   /***** STACK LOCK MUTEX *****/
+
+	EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
+	unsigned int signlen = EVP_PKEY_size(pkey);
+	unsigned char signature[signlen];
+
+	if (0 == EVP_SignInit(mdctx, EVP_sha1()))
+	{
+		std::cerr << "EVP_SignInit Failure!" << std::endl;
+
+		EVP_MD_CTX_destroy(mdctx);
+		return false;
+	}
+
+	if (0 == EVP_SignUpdate(mdctx, data, len))
+	{
+		std::cerr << "EVP_SignUpdate Failure!" << std::endl;
+
+		EVP_MD_CTX_destroy(mdctx);
+		return false;
+	}
+
+	if (0 == EVP_SignFinal(mdctx, signature, &signlen, pkey))
+	{
+		std::cerr << "EVP_SignFinal Failure!" << std::endl;
+
+		EVP_MD_CTX_destroy(mdctx);
+		return false;
+	}
+
+	EVP_MD_CTX_destroy(mdctx);
+
+	sign.clear();	
+	std::ostringstream out;
+	out << std::hex;
+	for(uint32_t i = 0; i < signlen; i++) 
+	{
+		out << std::setw(2) << std::setfill('0');
+		out << (uint32_t) (signature[i]);
+	}
+
+	sign = out.str();
+
+	return true;
+}
+
 
 
 	/**** NEW functions we've added ****/
@@ -1119,6 +1176,8 @@ bool AuthXPGP::ProcessXPGP(XPGP *xpgp, std::string &id)
 
 	cert->signers = getXPGPsigners(xpgp);
 
+	/* resave if new certificate */
+	mToSaveCerts = true;
 	xpgpMtx.unlock(); /**** UNLOCK ****/
 
 	id = xpgpid;
@@ -1592,6 +1651,33 @@ int printSSLError(SSL *ssl, int retval, int err, unsigned long err2,
  *
  */
 
+bool	AuthXPGP::FinalSaveCertificates()
+{
+	CheckSaveCertificates();
+
+	RsStackMutex stack(xpgpMtx); /***** LOCK *****/
+	mConfigSaveActive = false;
+	return true;
+}
+
+bool	AuthXPGP::CheckSaveCertificates()
+{
+	xpgpMtx.lock();   /***** LOCK *****/
+
+	if ((mConfigSaveActive) && (mToSaveCerts))
+	{
+		mToSaveCerts = false;
+		xpgpMtx.unlock(); /**** UNLOCK ****/
+
+		saveCertificates();
+		return true;
+	}
+
+	xpgpMtx.unlock(); /**** UNLOCK ****/
+
+	return false;
+}
+
 bool    AuthXPGP::saveCertificates()
 {
 	// construct file name.
@@ -1605,6 +1691,12 @@ bool    AuthXPGP::saveCertificates()
 
 	xpgpMtx.unlock(); /**** UNLOCK ****/
 
+	/* add on the slash */
+	if (neighdir != "")
+	{
+		neighdir += "/";
+	}
+
 	std::map<std::string, std::string>::iterator mit;
 
 	std::string conftxt;
@@ -1989,6 +2081,7 @@ bool    AuthXPGP::loadCertificates(bool &oldFormat, std::map<std::string, std::s
 		oldFormat = true;
 	}
 
+	mToSaveCerts = false;
 	return true;
 }
 

libretroshare/src/pqi/authxpgp.h

@@ -103,6 +103,8 @@ virtual	std::string getName(std::string id);
 virtual bool    getDetails(std::string id, pqiAuthDetails &details);
 	
 	/* High Level Load/Save Configuration */
+virtual bool FinalSaveCertificates();
+virtual bool CheckSaveCertificates();
 virtual bool saveCertificates();
 virtual bool loadCertificates();
 
@@ -123,7 +125,8 @@ virtual bool RevokeCertificate(std::string id);
 virtual bool TrustCertificate(std::string id, bool trust);
 	
 	/* Sign / Encrypt / Verify Data (TODO) */
-
+virtual bool 	SignData(std::string input, std::string &sign);
+virtual bool 	SignData(const void *data, const uint32_t len, std::string &sign);
 
 	/*********** Overloaded Functions from p3AuthMgr **********/
 
@@ -169,6 +172,8 @@ bool 	locked_FindCert(std::string id, xpgpcert **cert);
 	xpgpcert *mOwnCert;
 	EVP_PKEY *pkey;
 
+	bool mToSaveCerts;
+	bool mConfigSaveActive;
 	std::map<std::string, xpgpcert *> mCerts;
 
 };

libretroshare/src/pqi/p3authmgr.cc

@@ -187,6 +187,16 @@ bool	p3DummyAuthMgr::getDetails(std::string id, pqiAuthDetails &details)
 	return false;
 }
 
+bool p3DummyAuthMgr::FinalSaveCertificates()
+{
+	return false;
+}
+
+bool p3DummyAuthMgr::CheckSaveCertificates()
+{
+	return false;
+}
+
 bool p3DummyAuthMgr::saveCertificates()
 {
 	return false;
@@ -248,3 +258,14 @@ bool p3DummyAuthMgr::TrustCertificate(std::string id, bool trust)
 	return false;
 }
 
+bool p3DummyAuthMgr::SignData(std::string input, std::string &sign)
+{
+	return false;
+}
+
+bool p3DummyAuthMgr::SignData(const void *data, const uint32_t len, std::string &sign)
+{
+	return false;
+}
+
+

libretroshare/src/pqi/p3authmgr.h

@@ -96,6 +96,8 @@ virtual	std::string getName(std::string id) = 0;
 virtual	bool	getDetails(std::string id, pqiAuthDetails &details) = 0;
 
 		/* High Level Load/Save Configuration */
+virtual bool FinalSaveCertificates() = 0;
+virtual bool CheckSaveCertificates() = 0;
 virtual bool saveCertificates() = 0;
 virtual bool loadCertificates() = 0;
 
@@ -119,10 +121,11 @@ virtual	bool RevokeCertificate(std::string id) = 0;
 virtual bool TrustCertificate(std::string id, bool trust) = 0;
 
 		/* Sign / Encrypt / Verify Data (TODO) */
+virtual bool    SignData(std::string input, std::string &sign) = 0;
+virtual bool    SignData(const void *data, const uint32_t len, std::string &sign) = 0;
+
 //virtual	bool encryptData(std::string recipientId, std::string plaindata, std::string &result);
 
-
-
 };
 
 
@@ -155,6 +158,8 @@ virtual	std::string getName(std::string id);
 virtual	bool	getDetails(std::string id, pqiAuthDetails &details);
 
 		/* High Level Load/Save Configuration */
+virtual bool FinalSaveCertificates();
+virtual bool CheckSaveCertificates();
 virtual bool saveCertificates();
 virtual bool loadCertificates();
 
@@ -173,6 +178,8 @@ virtual bool SignCertificate(std::string id);
 virtual	bool RevokeCertificate(std::string id);
 virtual bool TrustCertificate(std::string id, bool trust);
 
+virtual bool SignData(std::string input, std::string &sign);
+virtual bool SignData(const void *data, const uint32_t len, std::string &sign);
 
 	std::string mOwnId;
 	std::map<std::string, pqiAuthDetails> mPeerList;

libretroshare/src/pqi/p3cfgmgr.cc

@@ -25,6 +25,7 @@
 
 
 #include "pqi/p3cfgmgr.h"
+#include "pqi/p3authmgr.h"
 #include "pqi/pqibin.h"
 #include "pqi/pqistreamer.h"
 
@@ -32,8 +33,8 @@
 
 #define CONFIG_DEBUG 1
 
-p3ConfigMgr::p3ConfigMgr(std::string dir, std::string fname, std::string signame)
-	:basedir(dir), metafname(fname), metasigfname(signame),
+p3ConfigMgr::p3ConfigMgr(p3AuthMgr *am, std::string dir, std::string fname, std::string signame)
+	:mAuthMgr(am), basedir(dir), metafname(fname), metasigfname(signame),
 	mConfigSaveActive(true)
 {
 
@@ -108,6 +109,12 @@ void	p3ConfigMgr::saveConfiguration()
 		std::cerr << it->first << " Hash: " << it->second->Hash();
 		std::cerr << std::endl;
 #endif
+		if (it->second->Hash() == "")
+		{
+			/* skip if no hash */
+			continue;
+		}
+
 		RsTlvKeyValue kv;
 		{
 			std::ostringstream out;
@@ -126,23 +133,47 @@ void	p3ConfigMgr::saveConfiguration()
 #endif
 
 	/* Write the data to a stream */
-	uint32_t bioflags = BIN_FLAGS_HASH_DATA | BIN_FLAGS_WRITEABLE;
-	BinInterface *bio = new BinFileInterface(metafname.c_str(), bioflags);
+	uint32_t bioflags = BIN_FLAGS_WRITEABLE;
+	BinMemInterface *membio = new BinMemInterface(1000, bioflags);
 	RsSerialiser *rss = new RsSerialiser();
 	rss->addSerialType(new RsGeneralConfigSerialiser());
-	pqistreamer stream(rss, "CONFIG", bio, 0);
+	pqistreamer stream(rss, "CONFIG", membio, 0);
 
 	stream.SendItem(item);
 	stream.tick();
 	stream.tick();
 
-	/* get hash */
-	std::string totalhash = bio->gethash();
+	/* sign data */
+	std::string signature;
+	mAuthMgr->SignData(membio->memptr(), membio->memsize(), signature);
 
-	/* sign the hash of the data */
+#ifdef CONFIG_DEBUG 
+	std::cerr << "p3ConfigMgr::saveConfiguration() MetaFile Signature:";
+	std::cerr << std::endl;
+	std::cerr << signature;
+	std::cerr << std::endl;
+#endif
+
+	if (!membio->writetofile(metafname.c_str()))
+	{
+#ifdef CONFIG_DEBUG 
+		std::cerr << "p3ConfigMgr::saveConfiguration() Failed to Write MetaFile";
+		std::cerr << std::endl;
+#endif
+	}
 
 
 	/* write signature to configuration */
+	BinMemInterface *signbio = new BinMemInterface(signature.c_str(), 
+					signature.length(), BIN_FLAGS_READABLE);
+
+	if (!signbio->writetofile(metasigfname.c_str()))
+	{
+#ifdef CONFIG_DEBUG 
+		std::cerr << "p3ConfigMgr::saveConfiguration() Failed to Write MetaSignFile";
+		std::cerr << std::endl;
+#endif
+	}
 
 
 }
@@ -156,13 +187,63 @@ void	p3ConfigMgr::loadConfiguration()
 	std::cerr << std::endl;
 #endif
 
-	/* Write the data to a stream */
-	uint32_t bioflags = BIN_FLAGS_HASH_DATA | BIN_FLAGS_READABLE;
-	BinInterface *bio = new BinFileInterface(metafname.c_str(), bioflags);
+	/* write signature to configuration */
+	BinMemInterface *signbio = new BinMemInterface(1000, BIN_FLAGS_READABLE);
+
+	if (!signbio->readfromfile(metasigfname.c_str()))
+	{
+#ifdef CONFIG_DEBUG 
+		std::cerr << "p3ConfigMgr::loadConfiguration() Failed to Load MetaSignFile";
+		std::cerr << std::endl;
+#endif
+	}
+
+	std::string oldsignature((char *) signbio->memptr(), signbio->memsize());
+	delete signbio;
+
+	BinMemInterface *membio = new BinMemInterface(1000, BIN_FLAGS_READABLE);
+
+	if (!membio->readfromfile(metafname.c_str()))
+	{
+#ifdef CONFIG_DEBUG 
+		std::cerr << "p3ConfigMgr::loadConfiguration() Failed to Load MetaFile";
+		std::cerr << std::endl;
+#endif
+		delete membio;
+	}
+
+	/* get signature */
+	std::string signature;
+	mAuthMgr->SignData(membio->memptr(), membio->memsize(), signature);
+
+#ifdef CONFIG_DEBUG 
+	std::cerr << "p3ConfigMgr::loadConfiguration() New MetaFile Signature:";
+	std::cerr << std::endl;
+	std::cerr << signature;
+	std::cerr << std::endl;
+#endif
+
+#ifdef CONFIG_DEBUG 
+	std::cerr << "p3ConfigMgr::loadConfiguration() Orig MetaFile Signature:";
+	std::cerr << std::endl;
+	std::cerr << oldsignature;
+	std::cerr << std::endl;
+#endif
+
+	if (signature != oldsignature)
+	{
+		/* Failed */
+#ifdef CONFIG_DEBUG 
+		std::cerr << "p3ConfigMgr::loadConfiguration() Signature Check Failed";
+		std::cerr << std::endl;
+#endif
+		return;
+	}
+
+	membio->fseek(0); /* go to start */
 	RsSerialiser *rss = new RsSerialiser();
 	rss->addSerialType(new RsGeneralConfigSerialiser());
-	pqistreamer stream(rss, "CONFIG", bio, 0);
-
+	pqistreamer stream(rss, "CONFIG", membio, 0);
 
 	stream.tick();
 	stream.tick();
@@ -182,12 +263,6 @@ void	p3ConfigMgr::loadConfiguration()
 
 #endif
 
-	std::string totalhash = bio->gethash();
-
-	/* check it TODO */
-	/* sign the hash of the data */
-	/* check signature with configuration */
-
 	/* extract info from KeyValueSet */
 	std::list<RsTlvKeyValue>::iterator it;
 	for(it = item->tlvkvs.pairs.begin(); it != item->tlvkvs.pairs.end(); it++)
@@ -300,6 +375,8 @@ bool	p3Config::loadConfiguration(std::string &loadHash)
 		{
 			delete (*it);
 		}
+
+		setHash("");
 		return false;
 	}
 

libretroshare/src/pqi/p3cfgmgr.h

@@ -64,6 +64,7 @@ const uint32_t CONFIG_TYPE_FSERVER 	= 0x0003;
 const uint32_t CONFIG_TYPE_MSGS 	= 0x0004;
 
 class p3ConfigMgr;
+class p3AuthMgr;
 
 class pqiConfig
 {
@@ -111,7 +112,7 @@ bool    HasConfigChanged(uint16_t idx);
 class p3ConfigMgr
 {
 	public:
-	p3ConfigMgr(std::string bdir, std::string fname, std::string signame);
+	p3ConfigMgr(p3AuthMgr *am, std::string bdir, std::string fname, std::string signame);
 
 void	tick();
 void	saveConfiguration();
@@ -127,6 +128,8 @@ void	completeConfiguration();
 
 
 	/* these are constants - so shouldn't need mutex */
+	p3AuthMgr *mAuthMgr;
+
 const std::string basedir;
 const std::string metafname;
 const std::string metasigfname;

libretroshare/src/pqi/pqibin.cc

@@ -35,23 +35,23 @@ BinFileInterface::BinFileInterface(const char *fname, int flags)
 	if ((bin_flags & BIN_FLAGS_READABLE) &&
 		(bin_flags & BIN_FLAGS_WRITEABLE))
 	{
-		buf = fopen(fname, "r+");
+		buf = fopen(fname, "rb+");
 		/* if the file don't exist */
 		if (!buf)
 		{
-			buf = fopen(fname, "w+");
+			buf = fopen(fname, "wb+");
 		}
 
 	}
 	else if (bin_flags & BIN_FLAGS_READABLE)
 	{
-		buf = fopen(fname, "r");
+		buf = fopen(fname, "rb");
 	}
 	else if (bin_flags & BIN_FLAGS_WRITEABLE)
 	{
 		// This is enough to remove old file in Linux...
 		// but not in windows.... (what to do)
-		buf = fopen(fname, "w");
+		buf = fopen(fname, "wb");
 		fflush(buf); /* this might help windows! */
 	}
 	else
@@ -155,6 +155,23 @@ BinMemInterface::BinMemInterface(int defsize, int flags)
 		}
 	}
 
+
+BinMemInterface::BinMemInterface(const void *data, const int defsize, int flags)
+	:bin_flags(flags), buf(NULL), size(defsize), 
+	recvsize(0), readloc(0), hash(NULL), bcount(0)
+	{
+		buf = malloc(defsize);
+		if (bin_flags & BIN_FLAGS_HASH_DATA)
+		{
+			hash = new pqihash();
+		}
+
+		/* just remove the const 
+		 * *BAD* but senddata don't change it anyway 
+		 */
+		senddata((void *) data, defsize);
+	}
+
 BinMemInterface::~BinMemInterface() 
 	{ 
 		if (buf)
@@ -174,7 +191,7 @@ int	BinMemInterface::fseek(int loc)
 	}
 
 
-int	BinMemInterface::senddata(void *data, int len)
+int	BinMemInterface::senddata(void *data, const int len)
 	{
 		if(recvsize + len > size)
 		{
@@ -231,6 +248,64 @@ uint64_t BinMemInterface::bytecount()
 	return 0;
 }
 	
+bool    BinMemInterface::writetofile(const char *fname)
+{
+	FILE *fd = fopen(fname, "wb");
+	if (!fd)
+	{
+		return false;
+	}
+
+	if (1 != fwrite(buf, recvsize, 1, fd))
+	{
+		fclose(fd);
+		return false;
+	}
+
+	fclose(fd);
+
+	return true;
+}
+
+bool    BinMemInterface::readfromfile(const char *fname)
+{
+	FILE *fd = fopen(fname, "rb");
+	if (!fd)
+	{
+		return false;
+	}
+
+	/* get size */
+	::fseek(fd, 0L, SEEK_END);
+	int fsize = ftell(fd);
+
+	if (fsize > size)
+	{
+		/* not enough room */
+		std::cerr << "BinMemInterface::readfromfile() not enough room";
+		std::cerr << std::endl;
+
+		fclose(fd);
+		return false;
+	}
+
+	::fseek(fd, 0L, SEEK_SET);
+	if (1 != fread(buf, fsize, 1, fd))
+	{
+		/* not enough room */
+		std::cerr << "BinMemInterface::readfromfile() failed fread";
+		std::cerr << std::endl;
+
+		fclose(fd);
+		return false;
+	}
+
+	recvsize = fsize;
+	readloc = 0;
+	fclose(fd);
+
+	return true;
+}
 
 
 /**************************************************************************/
@@ -448,4 +523,3 @@ std::string NetBinDummy::gethash()
 	return std::string("");
 }
 
-

libretroshare/src/pqi/pqibin.h

@@ -76,12 +76,18 @@ class BinMemInterface: public BinInterface
 {
 public:
 	BinMemInterface(int defsize, int flags);
+	BinMemInterface(const void *data, const int size, int flags);
 virtual ~BinMemInterface();
 
+	/* Extra Interfaces */
 int	fseek(int loc);
 int	memsize() { return recvsize; }
 void   *memptr() { return buf; }
 
+	/* file interface */
+bool	writetofile(const char *fname);
+bool	readfromfile(const char *fname);
+
 virtual int     tick() { return 1; }
 
 virtual int	senddata(void *data, int len);

libretroshare/src/rsserver/p3face-config.cc

@@ -335,6 +335,8 @@ void    RsServer::ConfigFinalSave()
 {
 	/* force saving of transfers */
 	server->saveFileTransferStatus();
+
+	mAuthMgr->FinalSaveCertificates();
 	mConfigMgr->completeConfiguration();
 }
 

libretroshare/src/rsserver/p3face-server.cc

@@ -242,6 +242,9 @@ void 	RsServer::run()
 
 				/* force saving FileTransferStatus */
 				server->saveFileTransferStatus();
+
+				/* see if we need to resave certs */
+				mAuthMgr->CheckSaveCertificates(); 
 	
 				/* hour loop */
 				if (++min >= 60)

libretroshare/src/rsserver/p3face-startup.cc

@@ -498,7 +498,7 @@ int RsServer::StartupRetroShare(RsInit *config)
 	server->setSaveDir(config->homePath.c_str()); /* Default Save Dir - config will overwrite */
 	server->setSearchInterface(pqih, mAuthMgr, mConnMgr);
 
-	mConfigMgr = new p3ConfigMgr(config->basedir, "rs-v0.4.cfg", "rs-v0.4.sgn");
+	mConfigMgr = new p3ConfigMgr(mAuthMgr, config->basedir, "rs-v0.4.cfg", "rs-v0.4.sgn");
 	mGeneralConfig = new p3GeneralConfig();
 
 
@@ -551,6 +551,8 @@ int RsServer::StartupRetroShare(RsInit *config)
 
 	if (oldFormat)
 	{
+		std::cerr << "Startup() Loaded Old Certificate Format" << std::endl;
+
 		/* transfer all authenticated peers to friend list */
 		std::list<std::string> authIds;
 		mAuthMgr->getAuthenticatedList(authIds);

libretroshare/src/services/p3msgservice.cc

@@ -328,20 +328,41 @@ bool    p3MsgService::loadConfiguration(std::string &loadHash)
 
 	std::string hashin = in->gethash();
 
+	delete pa_in;	
+
 	if (hashin != loadHash)
 	{
 		/* big error message! */
-		std::cerr << "p3MsgService::loadConfiguration() FAILED!" << std::endl;
-		std::cerr << "p3MsgService::loadConfiguration() FAILED!" << std::endl;
-		std::cerr << "p3MsgService::loadConfiguration() FAILED!" << std::endl;
-		std::cerr << "p3MsgService::loadConfiguration() FAILED!" << std::endl;
-		std::cerr << "p3MsgService::loadConfiguration() FAILED!" << std::endl;
+		std::cerr << "p3MsgService::loadConfiguration() FAILED! Msgs Tampered" << std::endl;
+		std::string msgfileold = msgfile + ".failed";
+
+		rename(msgfile.c_str(), msgfileold.c_str());
+
+		std::cerr << "Moving Old file to: " << msgfileold << std::endl;
+		std::cerr << "removing dodgey msgs" << std::endl;
+
+		RsStackMutex stack(mMsgMtx); /********** STACK LOCKED MTX ******/
+
+
+		std::map<uint32_t, RsMsgItem *>::iterator mit;
+		for(mit = imsg.begin(); mit != imsg.end(); mit++)
+		{
+			delete (mit->second);
+		}
+		imsg.clear();
+
+		for(mit = msgOutgoing.begin(); mit != msgOutgoing.end(); mit++)
+		{
+			delete (mit->second);
+		}
+		msgOutgoing.clear();
+		setHash("");
+		return false;
+
 	}
 
 	setHash(hashin);
 
-	delete pa_in;	
-
 	return true;
 }