Add a default for currencies for ripple_find_path.

src/cpp/ripple/Pathfinder.cpp

@@ -317,7 +317,7 @@ bool Pathfinder::findPaths(const unsigned int iMaxSteps, const unsigned int iMax
 								% RippleAddress::createHumanAccountID(rspEntry->getAccountIDPeer().getAccountID())
 								% STAmount::createHumanCurrency(speEnd.mCurrencyID));
 					}
-					else if (!rspEntry->getBalance().isPositive()	// Have IOUs to send.
+					else if (!rspEntry->getBalance().isPositive()	// No IOUs to send.
 						&& (!rspEntry->getLimitPeer()				// Peer does not extend credit.
 							|| *rspEntry->getBalance().negate() >= rspEntry->getLimitPeer()))	// No credit left.
 					{
@@ -565,4 +565,28 @@ void Pathfinder::addPathOption(PathOption::pointer pathOption)
 }
 #endif
 
+boost::unordered_set<uint160> usAccountSourceCurrencies(const RippleAddress& raAccountID, Ledger::ref lrLedger)
+{
+	boost::unordered_set<uint160>	usCurrencies;
+
+	// List of ripple lines.
+	AccountItems rippleLines(raAccountID.getAccountID(), lrLedger, AccountItem::pointer(new RippleState()));
+
+	BOOST_FOREACH(AccountItem::ref item, rippleLines.getItems())
+	{
+		RippleState*	rspEntry	= (RippleState*) item.get();
+		STAmount		saBalance	= rspEntry->getBalance();
+
+		// Filter out non
+		if (saBalance.isPositive()					// Have IOUs to send.
+			|| (rspEntry->getLimitPeer()			// Peer extends credit.
+				&& *saBalance.negate() < rspEntry->getLimitPeer()))	// Credit left.
+		{
+			// Path has no credit left. Ignore it.
+			usCurrencies.insert(saBalance.getCurrency());
+		}
+	}
+
+	return usCurrencies;
+}
 // vim:ts=4

src/cpp/ripple/Pathfinder.h

@@ -63,6 +63,8 @@ public:
 
 	bool bDefaultPath(const STPath& spPath);
 };
+
+boost::unordered_set<uint160> usAccountSourceCurrencies(const RippleAddress& raAccountID, Ledger::ref lrLedger);
 #endif
 
 // vim:ts=4

src/cpp/ripple/RPCErr.cpp

@@ -58,6 +58,8 @@ Json::Value rpcError(int iError, Json::Value jvResult)
 		{ rpcSRC_ACT_MISSING,		"srcActMissing",	"Source account not provided."							},
 		{ rpcSRC_ACT_NOT_FOUND,		"srcActNotFound",	"Source amount not found."								},
 		{ rpcSRC_AMT_MALFORMED,		"srcAmtMalformed",	"Source amount/currency/issuer is malformed."			},
+		{ rpcSRC_CUR_MALFORMED,		"srcCurMalformed",	"Source currency is malformed."							},
+		{ rpcSRC_ISR_MALFORMED,		"srcIsrMalformed",	"Source issuer is malformed."							},
 		{ rpcSRC_UNCLAIMED,			"srcUnclaimed",		"Source account is not claimed."						},
 		{ rpcTXN_NOT_FOUND,			"txnNotFound",		"Transaction not found."								},
 		{ rpcUNKNOWN_COMMAND,		"unknownCmd",		"Unknown command."										},

src/cpp/ripple/RPCErr.h

@@ -62,6 +62,8 @@ enum {
 	rpcSRC_ACT_MISSING,
 	rpcSRC_ACT_NOT_FOUND,
 	rpcSRC_AMT_MALFORMED,
+	rpcSRC_CUR_MALFORMED,
+	rpcSRC_ISR_MALFORMED,
 
 	// Internal error (should never happen)
 	rpcINTERNAL,		// Generic internal error.

src/cpp/ripple/RPCHandler.cpp

@@ -754,9 +754,9 @@ Json::Value RPCHandler::doRipplePathFind(Json::Value jvRequest)
 	}
 	else if (
 		// Checks on source_currencies.
-		!jvRequest.isMember("source_currencies")
-		|| !jvRequest["source_currencies"].isArray()
-		|| !jvRequest["source_currencies"].size()
+		jvRequest.isMember("source_currencies")
+		&& (!jvRequest["source_currencies"].isArray()
+			|| !jvRequest["source_currencies"].size())	// Don't allow empty currencies.
 		)
 	{
 		cLog(lsINFO) << "Bad source_currencies.";
@@ -764,36 +764,63 @@ Json::Value RPCHandler::doRipplePathFind(Json::Value jvRequest)
 	}
 	else
 	{
-		Json::Value	jvSrcCurrencies	= jvRequest["source_currencies"];
-		Json::Value	jvArray(Json::arrayValue);
-
 		Ledger::pointer	lpCurrent	= mNetOps->getCurrentLedger();
+		Json::Value		jvSrcCurrencies;
+
+		if (jvRequest.isMember("source_currencies"))
+		{
+			jvSrcCurrencies	= jvRequest["source_currencies"];
+		}
+		else
+		{
+			boost::unordered_set<uint160>	usCurrencies	= usAccountSourceCurrencies(raSrc, lpCurrent);
+
+			// Add XRP as a source currency.
+			// YYY Only bother if they are above reserve.
+			usCurrencies.insert(uint160(CURRENCY_XRP));
+
+			jvSrcCurrencies				= Json::Value(Json::arrayValue);
+
+			BOOST_FOREACH(const uint160& uCurrency, usCurrencies)
+			{
+				Json::Value	jvCurrency(Json::objectValue);
+
+				jvCurrency["currency"]	= STAmount::createHumanCurrency(uCurrency);
+
+				jvSrcCurrencies.append(jvCurrency);
+			}
+		}
+
+		LedgerEntrySet	lesSnapshot(lpCurrent);
 
 		ScopedUnlock	su(theApp->getMasterLock()); // As long as we have a locked copy of the ledger, we can unlock.
 
-		LedgerEntrySet	lesSnapshot(lpCurrent);
+		Json::Value	jvArray(Json::arrayValue);
 
 		for (unsigned int i=0; i != jvSrcCurrencies.size(); ++i) {
 			Json::Value	jvSource		= jvSrcCurrencies[i];
 			uint160		uSrcCurrencyID;
 			uint160		uSrcIssuerID	= raSrc.getAccountID();
 
-			if (
-				// Parse currency.
-				!jvSource.isMember("currency")
-				|| !STAmount::currencyFromString(uSrcCurrencyID, jvSource["currency"].asString())
+			// Parse mandatory currency.
+			if (!jvSource.isMember("currency")
+				|| !STAmount::currencyFromString(uSrcCurrencyID, jvSource["currency"].asString()))
+			{
+				cLog(lsINFO) << "Bad currency.";
 
-				// Parse issuer.
-				|| ((jvSource.isMember("issuer"))
+				return rpcError(rpcSRC_CUR_MALFORMED);
+			}
+			// Parse optional issuer.
+			else if (((jvSource.isMember("issuer"))
 					&& (!jvSource["issuer"].isString()
 						|| !STAmount::issuerFromString(uSrcIssuerID, jvSource["issuer"].asString())))
-
 				// Don't allow illegal issuers.
 				|| !uSrcIssuerID
 				|| ACCOUNT_ONE == uSrcIssuerID)
 			{
-				cLog(lsINFO) << "Bad currency/issuer.";
-				return rpcError(rpcINVALID_PARAMS);
+				cLog(lsINFO) << "Bad issuer.";
+
+				return rpcError(rpcSRC_ISR_MALFORMED);
 			}
 
 			STPathSet	spsComputed;
@@ -2495,7 +2522,9 @@ Json::Value RPCHandler::doCommand(Json::Value& jvRequest, int iRole)
 	{
 		return rpcError(rpcNO_PERMISSION);
 	}
-	else if (commandsA[i].iOptions & optNetwork
+
+	// XXX Need the master lock for getOperatingMode
+	if (commandsA[i].iOptions & optNetwork
 		&& mNetOps->getOperatingMode() != NetworkOPs::omTRACKING
 		&& mNetOps->getOperatingMode() != NetworkOPs::omFULL)
 	{

src/cpp/ripple/RippleState.h

@@ -34,6 +34,7 @@ private:
 	bool							mViewLowest;
 
 	RippleState(SerializedLedgerEntry::ref ledgerEntry);	// For accounts in a ledger
+
 public:
 	RippleState(){ }
 	AccountItem::pointer makeItem(const uint160& accountID, SerializedLedgerEntry::ref ledgerEntry);