Merge branch 'develop' of github.com:jedmccaleb/NewCoin into develop

src/cpp/ripple/CallRPC.cpp

@@ -471,6 +471,47 @@ Json::Value RPCParser::parseAccountRaw(const Json::Value& jvParams, bool bPeer)
 	return jvRequest;
 }
 
+// proof_create [<difficulty>] [<secret>]
+Json::Value RPCParser::parseProofCreate(const Json::Value& jvParams)
+{
+	Json::Value		jvRequest;
+
+	if (jvParams.size() >= 1)
+		jvRequest["difficulty"] = jvParams[0u].asInt();
+
+	if (jvParams.size() >= 2)
+		jvRequest["secret"] = jvParams[1u].asString();
+
+	return jvRequest;
+}
+
+// proof_solve <token>
+Json::Value RPCParser::parseProofSolve(const Json::Value& jvParams)
+{
+	Json::Value		jvRequest;
+
+	jvRequest["token"] = jvParams[0u].asString();
+
+	return jvRequest;
+}
+
+// proof_verify <token> <solution> [<difficulty>] [<secret>]
+Json::Value RPCParser::parseProofVerify(const Json::Value& jvParams)
+{
+	Json::Value		jvRequest;
+
+	jvRequest["token"] = jvParams[0u].asString();
+	jvRequest["solution"] = jvParams[1u].asString();
+
+	if (jvParams.size() >= 3)
+		jvRequest["difficulty"] = jvParams[2u].asInt();
+
+	if (jvParams.size() >= 4)
+		jvRequest["secret"] = jvParams[3u].asString();
+
+	return jvRequest;
+}
+
 // ripple_path_find <json> [<ledger>]
 Json::Value RPCParser::parseRipplePathFind(const Json::Value& jvParams)
 {
@@ -698,6 +739,9 @@ Json::Value RPCParser::parseCommand(std::string strMethod, Json::Value jvParams)
 		{	"peers",				&RPCParser::parseAsIs,					0,  0	},
 		{	"ping",					&RPCParser::parseAsIs,					0,  0	},
 //		{	"profile",				&RPCParser::parseProfile,				1,  9	},
+		{	"proof_create",			&RPCParser::parseProofCreate,			0,  2	},
+		{	"proof_solve",			&RPCParser::parseProofSolve,			1,  1	},
+		{	"proof_verify",			&RPCParser::parseProofVerify,			2,  4	},
 		{	"random",				&RPCParser::parseAsIs,					0,  0	},
 		{	"ripple_path_find",		&RPCParser::parseRipplePathFind,	    1,  2	},
 		{	"sign",					&RPCParser::parseSignSubmit,			2,  2	},

src/cpp/ripple/CallRPC.h

@@ -34,6 +34,9 @@ protected:
 #endif
 	Json::Value parseLogLevel(const Json::Value& jvParams);
 	Json::Value parseOwnerInfo(const Json::Value& jvParams);
+	Json::Value parseProofCreate(const Json::Value& jvParams);
+	Json::Value parseProofSolve(const Json::Value& jvParams);
+	Json::Value parseProofVerify(const Json::Value& jvParams);
 	Json::Value parseRandom(const Json::Value& jvParams);
 	Json::Value parseRipplePathFind(const Json::Value& jvParams);
 	Json::Value parseSMS(const Json::Value& jvParams);

src/cpp/ripple/ProofOfWork.cpp

@@ -5,6 +5,7 @@
 #include <boost/test/unit_test.hpp>
 #include <boost/algorithm/string.hpp>
 #include <boost/format.hpp>
+#include <boost/regex.hpp>
 
 #include <openssl/rand.h>
 
@@ -13,8 +14,53 @@
 
 SETUP_LOG();
 
+
+bool powResultInfo(POWResult powCode, std::string& strToken, std::string& strHuman)
+{
+	static struct {
+		POWResult		powCode;
+		const char*		cpToken;
+		const char*		cpHuman;
+	} powResultInfoA[] = {
+		{	powREUSED,				"powREUSED",				"Proof-of-work has already been used."					},
+		{	powBADNONCE,			"powBADNONCE",				"The solution does not meet the required difficulty."	},
+		{	powEXPIRED,				"powEXPIRED",				"Token is expired."										},
+		{	powCORRUPT,				"powCORRUPT",				"Invalid token."										},
+		{	powTOOEASY,				"powTOOEASY",				"Difficulty has increased since token was issued."		},
+
+		{	powOK,					"powOK",					"Valid proof-of-work."									},
+	};
+
+	int	iIndex	= NUMBER(powResultInfoA);
+
+	while (iIndex-- && powResultInfoA[iIndex].powCode != powCode)
+		;
+
+	if (iIndex >= 0)
+	{
+		strToken	= powResultInfoA[iIndex].cpToken;
+		strHuman	= powResultInfoA[iIndex].cpHuman;
+	}
+
+	return iIndex >= 0;
+}
+
 const uint256 ProofOfWork::sMinTarget("00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
 const int ProofOfWork::sMaxIterations(1 << 23);
+const int ProofOfWork::sMaxDifficulty(30);
+
+ProofOfWork::ProofOfWork(const std::string& token)
+{
+	std::vector<std::string> fields;
+	boost::split(fields, token, boost::algorithm::is_any_of("-"));
+	if (fields.size() != 5)
+		throw std::runtime_error("invalid token");
+
+	mToken = token;
+	mChallenge.SetHex(fields[0]);
+	mTarget.SetHex(fields[1]);
+	mIterations = lexical_cast_s<int>(fields[2]);
+}
 
 bool ProofOfWork::isValid() const
 {
@@ -109,6 +155,14 @@ bool ProofOfWork::checkSolution(const uint256& solution) const
 	return getSHA512Half(buf2) <= mTarget;
 }
 
+bool ProofOfWork::validateToken(const std::string& strToken)
+{
+	static boost::regex	reToken("[[:xdigit:]]{64}-[[:xdigit:]]{64}-[[:digit:]]+-[[:digit:]]+-[[:xdigit:]]{64}");
+	boost::smatch		smMatch;
+
+	return boost::regex_match(strToken, smMatch, reToken);
+}
+
 ProofOfWorkGenerator::ProofOfWorkGenerator() :	mValidTime(180)
 {
 	setDifficulty(1);
@@ -243,7 +297,7 @@ struct PowEntry
 	int iterations;
 };
 
-PowEntry PowEntries[31] =
+PowEntry PowEntries[ProofOfWork::sMaxDifficulty + 1] =
 { //   target                                                             iterations  hashes  		memory
 	{ "0CFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 65536	}, // 1451874,		2 MB
 	{ "0CFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 98304	}, // 2177811,		3 MB
@@ -300,7 +354,7 @@ int ProofOfWorkGenerator::getPowEntry(const uint256& target, int iterations)
 
 void ProofOfWorkGenerator::setDifficulty(int i)
 {
-	assert((i >= 0) && (i <= 30));
+	assert((i >= 0) && (i <= ProofOfWork::sMaxDifficulty));
 	time_t now = time(NULL);
 
 	boost::mutex::scoped_lock sl(mLock);

src/cpp/ripple/ProofOfWork.h

@@ -20,6 +20,8 @@ enum POWResult
 	powTOOEASY	= 5, // the difficulty increased too much while you solved it
 };
 
+bool powResultInfo(POWResult powCode, std::string& strToken, std::string& strHuman);
+
 class ProofOfWork
 {
 protected:
@@ -33,12 +35,16 @@ protected:
 	static const int sMaxIterations;
 
 public:
+	static const int sMaxDifficulty;
+
 	typedef boost::shared_ptr<ProofOfWork> pointer;
 
 	ProofOfWork(const std::string& token, int iterations, const uint256& challenge, const uint256& target) :
 		mToken(token), mChallenge(challenge), mTarget(target), mIterations(iterations)
 	{ ; }
 
+	ProofOfWork(const std::string& token);
+
 	bool isValid() const;
 
 	uint256 solve(int maxIterations = 2 * sMaxIterations) const;
@@ -50,6 +56,8 @@ public:
 	// approximate number of hashes needed to solve
 	static uint64 getDifficulty(const uint256& target, int iterations);
 	uint64 getDifficulty() const { return getDifficulty(mTarget, mIterations); }
+
+	static bool validateToken(const std::string& strToken);
 };
 
 class ProofOfWorkGenerator
@@ -81,6 +89,9 @@ public:
 	void loadLow();
 	void sweep(void);
 
+	const uint256& getSecret() const		{ return mSecret; }
+	void setSecret(const uint256& secret)	{ mSecret = secret; }
+
 	static int getPowEntry(const uint256& target, int iterations);
 };
 

src/cpp/ripple/RPCHandler.cpp

@@ -23,6 +23,7 @@
 #include "InstanceCounter.h"
 #include "Offer.h"
 #include "PFRequest.h"
+#include "ProofOfWork.h"
 
 SETUP_LOG();
 
@@ -877,6 +878,141 @@ Json::Value RPCHandler::doProfile(Json::Value jvRequest, int& cost, ScopedLock&
 	return obj;
 }
 
+// {
+//   // if either of these parameters is set, a custom generator is used
+//   difficulty: <number>		// optional
+//   secret: <secret>           // optional
+// }
+Json::Value RPCHandler::doProofCreate(Json::Value jvRequest, int& cost, ScopedLock& MasterLockHolder)
+{
+	// XXX: Add ability to create proof with arbitrary time
+
+	Json::Value		jvResult(Json::objectValue);
+
+	if (jvRequest.isMember("difficulty") || jvRequest.isMember("secret"))
+	{
+		ProofOfWorkGenerator	pgGen;
+
+		if (jvRequest.isMember("difficulty"))
+		{
+			if (!jvRequest["difficulty"].isIntegral())
+				return rpcError(rpcINVALID_PARAMS);
+
+			int iDifficulty = jvRequest["difficulty"].asInt();
+
+			if (iDifficulty < 0 || iDifficulty > ProofOfWork::sMaxDifficulty)
+				return rpcError(rpcINVALID_PARAMS);
+
+			pgGen.setDifficulty(iDifficulty);
+		}
+
+		if (jvRequest.isMember("secret"))
+		{
+			uint256		uSecret(jvRequest["secret"].asString());
+			pgGen.setSecret(uSecret);
+		}
+
+		jvResult["token"]	= pgGen.getProof().getToken();
+		jvResult["secret"]	= pgGen.getSecret().GetHex();
+	} else {
+		jvResult["token"]	= theApp->getPowGen().getProof().getToken();
+	}
+
+	return jvResult;
+}
+
+// {
+//   token: <token>
+// }
+Json::Value RPCHandler::doProofSolve(Json::Value jvRequest, int& cost, ScopedLock& MasterLockHolder)
+{
+	Json::Value			jvResult;
+
+	if (!jvRequest.isMember("token"))
+		return rpcError(rpcINVALID_PARAMS);
+
+	std::string			strToken		= jvRequest["token"].asString();
+
+	if (!ProofOfWork::validateToken(strToken))
+		return rpcError(rpcINVALID_PARAMS);
+
+	ProofOfWork			powProof(strToken);
+	uint256				uSolution		= powProof.solve();
+
+	jvResult["solution"]				= uSolution.GetHex();
+
+	return jvResult;
+}
+
+
+// {
+//   token: <token>
+//   solution: <solution>
+//   // if either of these parameters is set, a custom verifier is used
+//   difficulty: <number>		// optional
+//   secret: <secret>           // optional
+// }
+Json::Value RPCHandler::doProofVerify(Json::Value jvRequest, int& cost, ScopedLock& MasterLockHolder)
+{
+	// XXX Add ability to check proof against arbitrary time
+
+	Json::Value			jvResult;
+
+	if (!jvRequest.isMember("token"))
+		return rpcError(rpcINVALID_PARAMS);
+
+	if (!jvRequest.isMember("solution"))
+		return rpcError(rpcINVALID_PARAMS);
+
+	std::string		strToken	= jvRequest["token"].asString();
+	uint256			uSolution(jvRequest["solution"].asString());
+
+	POWResult		prResult;
+	if (jvRequest.isMember("difficulty") || jvRequest.isMember("secret"))
+	{
+		ProofOfWorkGenerator	pgGen;
+
+		if (jvRequest.isMember("difficulty"))
+		{
+			if (!jvRequest["difficulty"].isIntegral())
+				return rpcError(rpcINVALID_PARAMS);
+
+			int iDifficulty = jvRequest["difficulty"].asInt();
+
+			if (iDifficulty < 0 || iDifficulty > ProofOfWork::sMaxDifficulty)
+				return rpcError(rpcINVALID_PARAMS);
+
+			pgGen.setDifficulty(iDifficulty);
+		}
+
+		if (jvRequest.isMember("secret"))
+		{
+			uint256		uSecret(jvRequest["secret"].asString());
+			pgGen.setSecret(uSecret);
+		}
+
+		prResult				= pgGen.checkProof(strToken, uSolution);
+
+		jvResult["secret"]		= pgGen.getSecret().GetHex();
+	}
+	else
+	{
+		// XXX Proof should not be marked as used from this
+		prResult = theApp->getPowGen().checkProof(strToken, uSolution);
+	}
+
+	std::string	sToken;
+	std::string	sHuman;
+
+	powResultInfo(prResult, sToken, sHuman);
+
+	jvResult["proof_result"]			= sToken;
+	jvResult["proof_result_code"]		= prResult;
+	jvResult["proof_result_message"]	= sHuman;
+
+	return jvResult;
+}
+
 // {
 //   account: <account>|<nickname>|<account_public_key>
 //   account_index: <number>		// optional, defaults to 0.
@@ -3343,6 +3479,9 @@ Json::Value RPCHandler::doCommand(const Json::Value& jvRequest, int iRole, int &
 		{	"path_find",			&RPCHandler::doPathFind,			false,	optCurrent	},
 		{	"ping",					&RPCHandler::doPing,			    false,	optNone		},
 //		{	"profile",				&RPCHandler::doProfile,			    false,	optCurrent	},
+		{	"proof_create",			&RPCHandler::doProofCreate,		    false,	optNone		},
+		{	"proof_solve",			&RPCHandler::doProofSolve,		    true,	optNone		},
+		{	"proof_verify",			&RPCHandler::doProofVerify,		    true,	optNone		},
 		{	"random",				&RPCHandler::doRandom,				false,	optNone		},
 		{	"ripple_path_find",		&RPCHandler::doRipplePathFind,	    false,	optCurrent	},
 		{	"sign",					&RPCHandler::doSign,			    false,	optCurrent	},

src/cpp/ripple/RPCHandler.h

@@ -72,6 +72,9 @@ class RPCHandler
 	Json::Value doPathFind(Json::Value params, int& cost, ScopedLock& mlh);
 	Json::Value doPing(Json::Value params, int& cost, ScopedLock& mlh);
 	Json::Value doProfile(Json::Value params, int& cost, ScopedLock& mlh);
+	Json::Value doProofCreate(Json::Value params, int& cost, ScopedLock& mlh);
+	Json::Value doProofSolve(Json::Value params, int& cost, ScopedLock& mlh);
+	Json::Value doProofVerify(Json::Value params, int& cost, ScopedLock& mlh);
 	Json::Value doRandom(Json::Value jvRequest, int& cost, ScopedLock& mlh);
 	Json::Value doRipplePathFind(Json::Value jvRequest, int& cost, ScopedLock& mlh);
 	Json::Value doServerInfo(Json::Value params, int& cost, ScopedLock& mlh);	// for humans

src/cpp/ripple/main.cpp

@@ -91,6 +91,9 @@ void printHelp(const po::options_description& desc)
 	cerr << "     ledger_header <ledger>" << endl;
 	cerr << "     logrotate " << endl;
 	cerr << "     peers" << endl;
+	cerr << "     proof_create [<difficulty>] [<secret>]" << endl;
+	cerr << "     proof_solve <token>" << endl;
+	cerr << "     proof_verify <token> <solution> [<difficulty>] [<secret>]" << endl;
 	cerr << "     random" << endl;
 	cerr << "     ripple ..." << endl;
 	cerr << "     ripple_path_find <json> [<ledger>]" << endl;