Set version to 0.26.4-sp2

Fix account_lines, account_offers and book_offers result (RIPD-682):
The RPC account_lines and account_offers commands respond with the correct ledger info. account_offers, account_lines and book_offers allow admins unlimited size on the limit param. Specifying a negative value on limit clamps to the minimum value allowed. Incorrect types for limit are correctly reported in the result.
2025-11-19 18:45:52 +00:00 · 2014-11-11 14:22:37 -08:00 · 2014-11-11 14:21:49 -08:00 · 2014-11-11 14:21:40 -08:00
19 changed files with 686 additions and 1321 deletions
--- a/Builds/rpm/rippled.spec
+++ b/Builds/rpm/rippled.spec
@@ -1,5 +1,5 @@
 Name:           rippled
-Version:        0.26.4-sp1
+Version:        0.26.4-sp2
 Release:        1%{?dist}
 Summary:        Ripple peer-to-peer network daemon

--- a/src/ripple/app/main/Application.cpp
+++ b/src/ripple/app/main/Application.cpp
@@ -24,7 +24,6 @@
 #include <ripple/common/RippleSSLContext.h>
 #include <ripple/app/main/Tuning.h>
 #include <ripple/app/misc/ProofOfWorkFactory.h>
-#include <ripple/app/paths/FindPaths.h>
 #include <ripple/core/LoadFeeTrack.h>
 #include <ripple/rpc/Manager.h>
 #include <ripple/nodestore/Database.h>
@@ -653,7 +652,7 @@ public:
            updateTables ();

        m_amendmentTable->addInitial();
-        initializePathfinding ();
+        Pathfinder::initPathTable ();

        m_ledgerMaster->setMinValidations (getConfig ().VALIDATION_QUORUM);

--- a/src/ripple/app/paths/AccountCurrencies.cpp
+++ b/src/ripple/app/paths/AccountCurrencies.cpp
@@ -1,93 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#include <ripple/app/paths/AccountCurrencies.h>
-
-namespace ripple {
-
-CurrencySet accountSourceCurrencies (
-    RippleAddress const& raAccountID,
-    RippleLineCache::ref lrCache,
-    bool includeXRP)
-{
-    CurrencySet currencies;
-
-    // YYY Only bother if they are above reserve
-    if (includeXRP)
-        currencies.insert (xrpCurrency());
-
-    // List of ripple lines.
-    auto& rippleLines (lrCache->getRippleLines (raAccountID.getAccountID ()));
-
-    for (auto const& item : rippleLines)
-    {
-        auto rspEntry = (RippleState*) item.get ();
-        assert (rspEntry);
-        if (!rspEntry)
-            continue;
-
-        auto& saBalance = rspEntry->getBalance ();
-
-        // Filter out non
-        if (saBalance > zero
-            // Have IOUs to send.
-            || (rspEntry->getLimitPeer ()
-                // Peer extends credit.
-                && ((-saBalance) < rspEntry->getLimitPeer ()))) // Credit left.
-        {
-            currencies.insert (saBalance.getCurrency ());
-        }
-    }
-
-    currencies.erase (badCurrency());
-    return currencies;
-}
-
-CurrencySet accountDestCurrencies (
-    RippleAddress const& raAccountID,
-    RippleLineCache::ref lrCache,
-    bool includeXRP)
-{
-    CurrencySet currencies;
-
-    if (includeXRP)
-        currencies.insert (xrpCurrency());
-    // Even if account doesn't exist
-
-    // List of ripple lines.
-    auto& rippleLines (lrCache->getRippleLines (raAccountID.getAccountID ()));
-
-    for (auto const& item : rippleLines)
-    {
-        auto rspEntry = (RippleState*) item.get ();
-        assert (rspEntry);
-        if (!rspEntry)
-            continue;
-
-        auto& saBalance  = rspEntry->getBalance ();
-
-        if (saBalance < rspEntry->getLimit ())                  // Can take more
-            currencies.insert (saBalance.getCurrency ());
-    }
-
-    currencies.erase (badCurrency());
-    return currencies;
-}
-
-} // ripple
--- a/src/ripple/app/paths/AccountCurrencies.h
+++ b/src/ripple/app/paths/AccountCurrencies.h
@@ -1,37 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#ifndef RIPPLED_RIPPLE_APP_PATHS_ACCOUNTCURRENCIES_H
-#define RIPPLED_RIPPLE_APP_PATHS_ACCOUNTCURRENCIES_H
-
-namespace ripple {
-
-CurrencySet accountDestCurrencies
-        (RippleAddress const& raAccountID,
-         RippleLineCache::ref cache,
-         bool includeXRP);
-
-CurrencySet accountSourceCurrencies
-        (RippleAddress const& raAccountID,
-         RippleLineCache::ref lrLedger,
-         bool includeXRP);
-
-} // ripple
-
-#endif
--- a/src/ripple/app/paths/Credit.cpp
+++ b/src/ripple/app/paths/Credit.cpp
@@ -1,73 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#include <ripple/app/paths/Credit.h>
-
-namespace ripple {
-
-STAmount creditLimit (
-    LedgerEntrySet& ledger,
-    Account const& account,
-    Account const& issuer,
-    Currency const& currency)
-{
-    STAmount result ({currency, account});
-
-    auto sleRippleState = ledger.entryCache (ltRIPPLE_STATE,
-        Ledger::getRippleStateIndex (account, issuer, currency));
-
-    if (sleRippleState)
-    {
-        result = sleRippleState->getFieldAmount (
-            account < issuer ? sfLowLimit : sfHighLimit);
-
-        result.setIssuer (account);
-    }
-
-    assert (result.getIssuer () == account);
-    assert (result.getCurrency () == currency);
-    return result;
-}
-
-STAmount creditBalance (
-    LedgerEntrySet& ledger,
-    Account const& account,
-    Account const& issuer,
-    Currency const& currency)
-{
-    STAmount result ({currency, account});
-
-    auto sleRippleState = ledger.entryCache (ltRIPPLE_STATE,
-        Ledger::getRippleStateIndex (account, issuer, currency));
-
-    if (sleRippleState)
-    {
-        result = sleRippleState->getFieldAmount (sfBalance);
-        if (account < issuer)
-            result.negate ();
-
-        result.setIssuer (account);
-    }
-
-    assert (result.getIssuer () == account);
-    assert (result.getCurrency () == currency);
-    return result;
-}
-
-} // ripple
--- a/src/ripple/app/paths/Credit.h
+++ b/src/ripple/app/paths/Credit.h
@@ -1,52 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#ifndef RIPPLED_RIPPLE_APP_PATHS_CREDIT_H
-#define RIPPLED_RIPPLE_APP_PATHS_CREDIT_H
-
-namespace ripple {
-
-/** Calculate the maximum amount of IOUs that an account can hold
-    @param ledger the ledger to check against.
-    @param account the account of interest.
-    @param issuer the issuer of the IOU.
-    @param currency the IOU to check.
-    @return The maximum amount that can be held.
-*/
-STAmount creditLimit (
-    LedgerEntrySet& ledger,
-    Account const& account,
-    Account const& issuer,
-    Currency const& currency);
-
-/** Returns the amount of IOUs issued by issuer that are held by an account
-    @param ledger the ledger to check against.
-    @param account the account of interest.
-    @param issuer the issuer of the IOU.
-    @param currency the IOU to check.
-*/
-STAmount creditBalance (
-    LedgerEntrySet& ledger,
-    Account const& account,
-    Account const& issuer,
-    Currency const& currency);
-
-} // ripple
-
-#endif
--- a/src/ripple/app/paths/FindPaths.cpp
+++ b/src/ripple/app/paths/FindPaths.cpp
@@ -1,141 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#include <ripple/app/paths/FindPaths.h>
-#include <ripple/app/paths/Pathfinder.h>
-
-namespace ripple {
-
-class FindPaths::Impl {
-public:
-    Impl (
-        RippleLineCache::ref cache,
-        Account const& srcAccount,
-        Account const& dstAccount,
-        STAmount const& dstAmount,
-        int searchLevel,
-        unsigned int maxPaths)
-            : cache_ (cache),
-              srcAccount_ (srcAccount),
-              dstAccount_ (dstAccount),
-              dstAmount_ (dstAmount),
-              searchLevel_ (searchLevel),
-              maxPaths_ (maxPaths)
-    {
-    }
-
-
-    bool findPathsForIssue (
-        Issue const& issue,
-        STPathSet& pathsOut,
-        STPath& fullLiquidityPath)
-    {
-        if (auto& pathfinder = getPathFinder (issue.currency))
-        {
-            pathsOut = pathfinder->getBestPaths (
-                maxPaths_,  fullLiquidityPath, issue.account);
-            return true;
-        }
-        return false;
-    }
-
-private:
-    hash_map<Currency, std::unique_ptr<Pathfinder>> currencyMap_;
-
-    RippleLineCache::ref cache_;
-    Account const srcAccount_;
-    Account const dstAccount_;
-    STAmount const dstAmount_;
-    int const searchLevel_;
-    unsigned int const maxPaths_;
-
-    std::unique_ptr<Pathfinder> const& getPathFinder (Currency const& currency)
-    {
-        auto i = currencyMap_.find (currency);
-        if (i != currencyMap_.end ())
-            return i->second;
-        auto pathfinder = std::make_unique<Pathfinder> (
-            cache_, srcAccount_, dstAccount_, currency, dstAmount_);
-        if (pathfinder->findPaths (searchLevel_))
-            pathfinder->computePathRanks (maxPaths_);
-        else
-            pathfinder.reset ();  // It's a bad request - clear it.
-        return currencyMap_[currency] = std::move (pathfinder);
-
-        // TODO(tom): why doesn't this faster way compile?
-        // return currencyMap_.insert (i, std::move (pathfinder)).second;
-    }
-};
-
-FindPaths::FindPaths (
-    RippleLineCache::ref cache,
-    Account const& srcAccount,
-    Account const& dstAccount,
-    STAmount const& dstAmount,
-    int level,
-    unsigned int maxPaths)
-        : impl_ (std::make_unique<Impl> (
-              cache, srcAccount, dstAccount, dstAmount, level, maxPaths))
-{
-}
-
-FindPaths::~FindPaths() = default;
-
-bool FindPaths::findPathsForIssue (
-    Issue const& issue,
-    STPathSet& pathsOut,
-    STPath& fullLiquidityPath)
-{
-    return impl_->findPathsForIssue (issue, pathsOut, fullLiquidityPath);
-}
-
-bool findPathsForOneIssuer (
-    RippleLineCache::ref cache,
-    Account const& srcAccount,
-    Account const& dstAccount,
-    Issue const& srcIssue,
-    STAmount const& dstAmount,
-    int searchLevel,
-    unsigned int const maxPaths,
-    STPathSet& pathsOut,
-    STPath& fullLiquidityPath)
-{
-    Pathfinder pf (
-        cache,
-        srcAccount,
-        dstAccount,
-        srcIssue.currency,
-        srcIssue.account,
-        dstAmount);
-
-    if (!pf.findPaths (searchLevel))
-        return false;
-
-    pf.addPathsFromPreviousPathfinding (pathsOut);
-    pf.computePathRanks (maxPaths);
-    pathsOut = pf.getBestPaths(maxPaths, fullLiquidityPath, srcIssue.account);
-    return true;
-}
-
-void initializePathfinding ()
-{
-    Pathfinder::initPathTable ();
-}
-
-} // ripple
--- a/src/ripple/app/paths/FindPaths.h
+++ b/src/ripple/app/paths/FindPaths.h
@@ -1,93 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#ifndef RIPPLED_RIPPLE_APP_PATHS_FINDPATHS_H
-#define RIPPLED_RIPPLE_APP_PATHS_FINDPATHS_H
-
-namespace ripple {
-
-class FindPaths
-{
-public:
-    FindPaths (
-        RippleLineCache::ref cache,
-        Account const& srcAccount,
-        Account const& dstAccount,
-        STAmount const& dstAmount,
-        /** searchLevel is the maximum search level allowed in an output path.
-         */
-        int searchLevel,
-        /** maxPaths is the maximum number of paths that can be returned in
-            pathsOut. */
-        unsigned int const maxPaths);
-    ~FindPaths();
-
-    bool findPathsForIssue (
-        Issue const& issue,
-
-        /** On input, pathsOut contains any paths you want to ensure are
-            included if still good.
-
-            On output, pathsOut will have any additional paths found. Only
-            non-default paths without source or destination will be added. */
-        STPathSet& pathsOut,
-
-        /** On input, fullLiquidityPath must be an empty STPath.
-
-            On output, if fullLiquidityPath is non-empty, it contains one extra
-            path that can move the entire liquidity requested. */
-        STPath& fullLiquidityPath);
-
-private:
-    class Impl;
-    std::unique_ptr<Impl> impl_;
-};
-
-bool findPathsForOneIssuer (
-    RippleLineCache::ref cache,
-    Account const& srcAccount,
-    Account const& dstAccount,
-    Issue const& srcIssue,
-    STAmount const& dstAmount,
-
-    /** searchLevel is the maximum search level allowed in an output path. */
-    int searchLevel,
-
-    /** maxPaths is the maximum number of paths that can be returned in
-        pathsOut. */
-    unsigned int const maxPaths,
-
-    /** On input, pathsOut contains any paths you want to ensure are included if
-        still good.
-
-        On output, pathsOut will have any additional paths found. Only
-        non-default paths without source or destination will be added. */
-    STPathSet& pathsOut,
-
-    /** On input, fullLiquidityPath must be an empty STPath.
-
-        On output, if fullLiquidityPath is non-empty, it contains one extra path
-        that can move the entire liquidity requested. */
-    STPath& fullLiquidityPath);
-
-void initializePathfinding ();
-
-} // ripple
-
-#endif
--- a/src/ripple/app/paths/PathRequest.cpp
+++ b/src/ripple/app/paths/PathRequest.cpp
@@ -17,31 +17,27 @@
 */
 //==============================================================================

-#include <ripple/app/paths/AccountCurrencies.h>
-#include <ripple/app/paths/FindPaths.h>
+#include <ripple/types/UintTypes.h>
 #include <ripple/core/Config.h>
 #include <ripple/core/LoadFeeTrack.h>
-#include <ripple/types/UintTypes.h>
 #include <boost/log/trivial.hpp>
 #include <tuple>

 namespace ripple {

 PathRequest::PathRequest (
-    const std::shared_ptr<InfoSub>& subscriber,
-    int id,
-    PathRequests& owner,
+const std::shared_ptr<InfoSub>& subscriber, int id, PathRequests& owner,
    beast::Journal journal)
-        : m_journal (journal)
-        , mOwner (owner)
-        , wpSubscriber (subscriber)
-        , jvStatus (Json::objectValue)
-        , bValid (false)
-        , mLastIndex (0)
-        , mInProgress (false)
-        , iLastLevel (0)
-        , bLastSuccess (false)
-        , iIdentifier (id)
+    : m_journal (journal)
+    , mOwner (owner)
+    , wpSubscriber (subscriber)
+    , jvStatus (Json::objectValue)
+    , bValid (false)
+    , mLastIndex (0)
+    , mInProgress (false)
+    , iLastLevel (0)
+    , bLastSuccess (false)
+    , iIdentifier (id)
 {
    if (m_journal.debug)
        m_journal.debug << iIdentifier << " created";
@@ -49,8 +45,7 @@ PathRequest::PathRequest (
 }

 static std::string const get_milli_diff (
-    boost::posix_time::ptime const& after,
-    boost::posix_time::ptime
+    boost::posix_time::ptime const& after, boost::posix_time::ptime
    const& before)
 {
    return beast::lexicalCastThrow <std::string> (
@@ -179,7 +174,7 @@ bool PathRequest::isValid (RippleLineCache::ref crCache)
                bool const disallowXRP (
                    asDst->peekSLE ().getFlags() & lsfDisallowXRP);

-                auto usDestCurrID = accountDestCurrencies (
+                auto usDestCurrID = usAccountDestCurrencies (
                        raDstAccount, crCache, !disallowXRP);

                for (auto const& currency : usDestCurrID)
@@ -228,15 +223,11 @@ Json::Value PathRequest::doCreate (
    {
        if (bValid)
        {
-            m_journal.debug << iIdentifier
-                            << " valid: " << raSrcAccount.humanAccountID ();
-            m_journal.debug << iIdentifier
-                            << " Deliver: " << saDstAmount.getFullText ();
+            m_journal.debug << iIdentifier << " valid: " << raSrcAccount.humanAccountID ();
+            m_journal.debug << iIdentifier << " Deliver: " << saDstAmount.getFullText ();
        }
        else
-        {
            m_journal.debug << iIdentifier << " invalid";
-        }
    }

    valid = bValid;
@@ -277,12 +268,10 @@ int PathRequest::parseJson (Json::Value const& jvParams, bool complete)

    if (jvParams.isMember ("destination_amount"))
    {
-        if (! amountFromJsonNoThrow (
-                saDstAmount, jvParams["destination_amount"]) ||
-            (saDstAmount.getCurrency ().isZero () &&
-             saDstAmount.getIssuer ().isNonZero ()) ||
-            (saDstAmount.getCurrency () == badCurrency ()) ||
-            saDstAmount <= zero)
+        if (! amountFromJsonNoThrow (saDstAmount, jvParams["destination_amount"]) ||
+                (saDstAmount.getCurrency ().isZero () && saDstAmount.getIssuer ().isNonZero ()) ||
+                (saDstAmount.getCurrency () == badCurrency()) ||
+                saDstAmount <= zero)
        {
            jvStatus = rpcError (rpcDST_AMT_MALFORMED);
            return PFR_PJ_INVALID;
@@ -331,11 +320,6 @@ int PathRequest::parseJson (Json::Value const& jvParams, bool complete)
                return PFR_PJ_INVALID;
            }

-            if (uCur.isNonZero() && uIss.isZero())
-            {
-                uIss = raSrcAccount.getAccountID();
-            }
-
            sciSourceCurrencies.insert ({uCur, uIss});
        }
    }
@@ -379,16 +363,16 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
    if (sourceCurrencies.empty ())
    {
        auto usCurrencies =
-                accountSourceCurrencies (raSrcAccount, cache, true);
+                usAccountSourceCurrencies (raSrcAccount, cache, true);
        bool sameAccount = raSrcAccount == raDstAccount;
        for (auto const& c: usCurrencies)
        {
            if (!sameAccount || (c != saDstAmount.getCurrency ()))
            {
                if (c.isZero ())
-                    sourceCurrencies.insert ({c, xrpAccount()});
+                    sourceCurrencies.insert (std::make_pair (c, xrpAccount()));
                else
-                    sourceCurrencies.insert ({c, raSrcAccount.getAccountID ()});
+                    sourceCurrencies.insert (std::make_pair (c, raSrcAccount.getAccountID ()));
            }
        }
    }
@@ -406,30 +390,26 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
    bool loaded = getApp().getFeeTrack().isLoadedLocal();

    if (iLevel == 0)
-    {
-        // first pass
+    { // first pass
        if (loaded || fast)
            iLevel = getConfig().PATH_SEARCH_FAST;
        else
            iLevel = getConfig().PATH_SEARCH;
    }
    else if ((iLevel == getConfig().PATH_SEARCH_FAST) && !fast)
-    {
-        // leaving fast pathfinding
+    { // leaving fast pathfinding
        iLevel = getConfig().PATH_SEARCH;
        if (loaded && (iLevel > getConfig().PATH_SEARCH_FAST))
            --iLevel;
    }
    else if (bLastSuccess)
-    {
-        // decrement, if possible
+    { // decrement, if possible
        if (iLevel > getConfig().PATH_SEARCH ||
            (loaded && (iLevel > getConfig().PATH_SEARCH_FAST)))
            --iLevel;
    }
    else
-    {
-        // adjust as needed
+    { // adjust as needed
        if (!loaded && (iLevel < getConfig().PATH_SEARCH_MAX))
            ++iLevel;
        if (loaded && (iLevel > getConfig().PATH_SEARCH_FAST))
@@ -440,17 +420,10 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)

    bool found = false;

-    FindPaths fp (
-        cache,
-        raSrcAccount.getAccountID (),
-        raDstAccount.getAccountID (),
-        saDstAmount,
-        iLevel,
-        4);  // iMaxPaths
    for (auto const& currIssuer: sourceCurrencies)
    {
        {
-            STAmount test (currIssuer, 1);
+            STAmount test ({currIssuer.first, currIssuer.second}, 1);
            if (m_journal.debug)
            {
                m_journal.debug
@@ -458,28 +431,26 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
                        << " Trying to find paths: " << test.getFullText ();
            }
        }
+        bool valid;
        STPathSet& spsPaths = mContext[currIssuer];
-        STPath fullLiquidityPath;
-        auto valid = fp.findPathsForIssue (
-            currIssuer,
-            spsPaths,
-            fullLiquidityPath);
+        Pathfinder pf (cache, raSrcAccount, raDstAccount,
+                       currIssuer.first, currIssuer.second, saDstAmount, valid);
        CondLog (!valid, lsDEBUG, PathRequest)
                << iIdentifier << " PF request not valid";

-        if (valid)
+        STPath extraPath;
+        if (valid && pf.findPaths (iLevel, 4, spsPaths, extraPath))
        {
            LedgerEntrySet lesSandbox (cache->getLedger (), tapNONE);
-            auto& sourceAccount = !isXRP (currIssuer.account)
-                    ? currIssuer.account
-                    : isXRP (currIssuer.currency)
+            auto& account = currIssuer.second.isNonZero ()
+                    ? Account(currIssuer.second)
+                    : isXRP (currIssuer.first)
                        ? xrpAccount()
                        : raSrcAccount.getAccountID ();
-            STAmount saMaxAmount ({currIssuer.currency, sourceAccount}, 1);
+            STAmount saMaxAmount ({currIssuer.first, account}, 1);

            saMaxAmount.negate ();
-            m_journal.debug << iIdentifier
-                            << " Paths found, calling rippleCalc";
+            m_journal.debug << iIdentifier << " Paths found, calling rippleCalc";
            auto rc = path::RippleCalc::rippleCalculate (
                lesSandbox,
                saMaxAmount,
@@ -488,15 +459,13 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
                raSrcAccount.getAccountID (),
                spsPaths);

-            if (!fullLiquidityPath.empty() &&
+            if (!extraPath.empty() &&
                (rc.result () == terNO_LINE || rc.result () == tecPATH_PARTIAL))
            {
                m_journal.debug
                        << iIdentifier << " Trying with an extra path element";
-                spsPaths.push_back (fullLiquidityPath);
-                lesSandbox.clear();
-                rc = path::RippleCalc::rippleCalculate (
-                    lesSandbox,
+                spsPaths.push_back (extraPath);
+                rc = path::RippleCalc::rippleCalculate (lesSandbox,
                    saMaxAmount,
                    saDstAmount,
                    raDstAccount.getAccountID (),
@@ -515,10 +484,8 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
            if (rc.result () == tesSUCCESS)
            {
                Json::Value jvEntry (Json::objectValue);
-                rc.actualAmountIn.setIssuer (sourceAccount);
-
-                jvEntry["source_amount"] = rc.actualAmountIn.getJson (0);
-                jvEntry["paths_computed"] = spsPaths.getJson (0);
+                jvEntry["source_amount"]    = rc.actualAmountIn.getJson (0);
+                jvEntry["paths_computed"]   = spsPaths.getJson (0);
                found  = true;
                jvArray.append (jvEntry);
            }
--- a/src/ripple/app/paths/PathRequest.h
+++ b/src/ripple/app/paths/PathRequest.h
@@ -45,13 +45,13 @@ public:
    typedef const pointer&                  ref;
    typedef const wptr&                     wref;

+    // TODO(tom): Use Issue instead!
+    typedef std::pair<Currency, Account> CurrencyIssuer;
+
 public:
    // VFALCO TODO Break the cyclic dependency on InfoSub
-    PathRequest (
-        std::shared_ptr <InfoSub> const& subscriber,
-        int id,
-        PathRequests&,
-        beast::Journal journal);
+    PathRequest (std::shared_ptr <InfoSub> const& subscriber,
+        int id, PathRequests&, beast::Journal journal);

    ~PathRequest ();

@@ -97,8 +97,8 @@ private:
    RippleAddress raDstAccount;
    STAmount saDstAmount;

-    std::set<Issue> sciSourceCurrencies;
-    std::map<Issue, STPathSet> mContext;
+    std::set<CurrencyIssuer> sciSourceCurrencies;
+    std::map<CurrencyIssuer, STPathSet> mContext;

    bool bValid;

--- a/src/ripple/app/paths/PathState.cpp
+++ b/src/ripple/app/paths/PathState.cpp
@@ -17,8 +17,6 @@
 */
 //==============================================================================

-#include <ripple/app/paths/Credit.h>
-
 namespace ripple {

 // OPTIMIZE: When calculating path increment, note if increment consumes all
@@ -316,13 +314,13 @@ TER PathState::pushNode (

                    if (resultCode == tesSUCCESS)
                    {
-                        STAmount saOwed = creditBalance (lesEntries,
+                        STAmount saOwed = credit_balance (lesEntries,
                            node.account_, backNode.account_,
                            node.issue_.currency);
                        STAmount saLimit;

                        if (saOwed <= zero) {
-                            saLimit = creditLimit (lesEntries,
+                            saLimit = credit_limit (lesEntries,
                                node.account_,
                                backNode.account_,
                                node.issue_.currency);
--- a/src/ripple/app/paths/Pathfinder.cpp
+++ b/src/ripple/app/paths/Pathfinder.cpp
--- a/src/ripple/app/paths/Pathfinder.h
+++ b/src/ripple/app/paths/Pathfinder.h
@@ -31,160 +31,114 @@ namespace ripple {
 class Pathfinder
 {
 public:
-    /** Construct a pathfinder with an issuer.*/
    Pathfinder (
        RippleLineCache::ref cache,
-        Account const& srcAccount,
-        Account const& dstAccount,
-        Currency const& uSrcCurrency,
-        Account const& uSrcIssuer,
-        STAmount const& dstAmount);
+        RippleAddress const& srcAccountID,
+        RippleAddress const& dstAccountID,
+        Currency const& srcCurrencyID,
+        Account const& srcIssuerID,
+        STAmount const& dstAmount,
+        bool& bValid);

-    /** Construct a pathfinder without an issuer.*/
-    Pathfinder (
-        RippleLineCache::ref cache,
-        Account const& srcAccount,
-        Account const& dstAccount,
-        Currency const& uSrcCurrency,
-        STAmount const& dstAmount);
+    static void initPathTable();

-    ~Pathfinder();
+    bool findPaths (
+        int iLevel,
+        unsigned int const iMaxPaths,
+        STPathSet& spsDst,
+        STPath& spExtraPath);

-    static void initPathTable ();
-
-    bool findPaths (int searchLevel);
-
-    /** Make sure that all the input paths are included in mCompletePaths. */
-    void addPathsFromPreviousPathfinding (STPathSet&);
-
-    /** Compute the rankings of the paths. */
-    void computePathRanks (int maxPaths);
-
-    /* Get the best paths, up to maxPaths in number, from mCompletePaths.
-
-       On return, if fullLiquidityPath is not empty, then it contains the best
-       additional single path which can consume all the liquidity.
-    */
-    STPathSet getBestPaths (
-        int maxPaths,
-        STPath& fullLiquidityPath,
-        Account const& srcIssuer);
-
-    enum NodeType
-    {
-        nt_SOURCE,     // The source account: with an issuer account, if needed.
-        nt_ACCOUNTS,   // Accounts that connect from this source/currency.
-        nt_BOOKS,      // Order books that connect to this currency.
-        nt_XRP_BOOK,   // The order book from this currency to XRP.
-        nt_DEST_BOOK,  // The order book to the destination currency/issuer.
-        nt_DESTINATION // The destination account only.
-    };
-
-    // The PathType is a list of the NodeTypes for a path.
-    using PathType = std::vector <NodeType>;
-
-    // PaymentType represents the types of the source and destination currencies
-    // in a path request.
+private:
    enum PaymentType
    {
        pt_XRP_to_XRP,
        pt_XRP_to_nonXRP,
        pt_nonXRP_to_XRP,
-        pt_nonXRP_to_same,   // Destination currency is the same as source.
-        pt_nonXRP_to_nonXRP  // Destination currency is NOT the same as source.
+        pt_nonXRP_to_same,
+        pt_nonXRP_to_nonXRP
    };

-    struct PathRank
+    enum NodeType
    {
-        std::uint64_t quality;
-        std::uint64_t length;
-        STAmount liquidity;
-        int index;
+        nt_SOURCE,     // The source account with an issuer account, if required
+        nt_ACCOUNTS,   // Accounts that connect from this source/currency
+        nt_BOOKS,      // Order books that connect to this currency
+        nt_XRP_BOOK,   // The order book from this currency to XRP
+        nt_DEST_BOOK,  // The order book to the destination currency/issuer
+        nt_DESTINATION // The destination account only
    };

-private:
-    /*
-      Call graph of Pathfinder methods.
+    typedef std::vector<NodeType>         PathType_t;
+    typedef std::pair<int, PathType_t>    CostedPath_t;
+    typedef std::vector<CostedPath_t>     CostedPathList_t;

-      findPaths:
-          addPathsForType:
-              addLinks:
-                  addLink:
-                      getPathsOut
-                      issueMatchesOrigin
-                      isNoRippleOut:
-                          isNoRipple
+    typedef std::pair<int, const char*>   PathCost;
+    typedef std::vector<PathCost>         PathCostList;

-      addPathsFromPreviousPathfinding
-
-      computePathRanks:
-          rippleCalculate
-          getPathLiquidity:
-              rippleCalculate
-
-      getBestPaths
-     */
+    typedef std::map<PaymentType, CostedPathList_t> PathTable;


-    // Add all paths of one type to mCompletePaths.
-    STPathSet& addPathsForType (PathType const& type);
+    /** Fill a CostedPathList_t from its description. */
+    static void fillPaths(PaymentType type,
+                          PathCostList const& costs);

-    bool issueMatchesOrigin (Issue const&);
+    /** @return true if any building paths are now complete. */
+    bool checkComplete (STPathSet& retPathSet);
+
+    static std::string pathTypeToString(PathType_t const&);
+
+    bool matchesOrigin (Issue const&);

    int getPathsOut (
        Currency const& currency,
-        Account const& account,
+        Account const& accountID,
        bool isDestCurrency,
        Account const& dest);

-    void addLink (
+    void addLink(
        STPath const& currentPath,
        STPathSet& incompletePaths,
        int addFlags);

-    // Call addLink() for each path in currentPaths.
-    void addLinks (
+    void addLink(
        STPathSet const& currentPaths,
        STPathSet& incompletePaths,
        int addFlags);

-    // Compute the liquidity for a path.  Return tesSUCCESS if it has has enough
-    // liquidity to be worth keeping, otherwise an error.
-    TER getPathLiquidity (
-        STPath const& path,            // IN:  The path to check.
-        STAmount const& minDstAmount,  // IN:  The minimum output this path must
-                                       //      deliver to be worth keeping.
-        STAmount& amountOut,           // OUT: The actual liquidity on the path.
-        uint64_t& qualityOut) const;   // OUT: The returned initial quality
+    STPathSet& getPaths(PathType_t const& type,
+                        bool addComplete = true);
+
+    STPathSet filterPaths(int iMaxPaths,
+                          STPath& extraPath);
+
+    TER checkPath (STPath const& path, STAmount const& minDestAmount,
+        STAmount& amount, uint64_t& quality) const;

-    // Does this path end on an account-to-account link whose last account has
-    // set the "no ripple" flag on the link?
    bool isNoRippleOut (STPath const& currentPath);
-
-    // Is the "no ripple" flag set from one account to another?
    bool isNoRipple (
-        Account const& fromAccount,
-        Account const& toAccount,
-        Currency const& currency);
+        Account const& setByID,
+        Account const& setOnID,
+        Currency const& currencyID);

-    Account mSrcAccount;
-    Account mDstAccount;
-    STAmount mDstAmount;
-    Currency mSrcCurrency;
-    boost::optional<Account> mSrcIssuer;
-    STAmount mSrcAmount;
-    /** The amount remaining from mSrcAccount after the default liquidity has
-        been removed. */
-    STAmount mRemainingAmount;
+    // Our main table of paths

-    Ledger::pointer mLedger;
-    LoadEvent::pointer m_loadEvent;
-    RippleLineCache::pointer mRLCache;
+    static PathTable mPathTable;
+    static PathType_t makePath(char const*);
+
+    Account             mSrcAccountID;
+    Account             mDstAccountID;
+    STAmount            mDstAmount;
+    Currency            mSrcCurrencyID;
+    Account             mSrcIssuerID;
+    STAmount            mSrcAmount;
+
+    Ledger::pointer     mLedger;
+    LoadEvent::pointer  m_loadEvent;
+    RippleLineCache::pointer    mRLCache;

    STPathElement mSource;
    STPathSet mCompletePaths;
-    std::vector<PathRank> mPathRanks;
-    std::map<PathType, STPathSet> mPaths;
+    std::map<PathType_t, STPathSet> mPaths;

    hash_map<Issue, int> mPathsOutCountMap;

@@ -192,18 +146,51 @@ private:
    static std::uint32_t const afADD_ACCOUNTS = 0x001;

    // Add order books
-    static std::uint32_t const afADD_BOOKS = 0x002;
+    static std::uint32_t const afADD_BOOKS    = 0x002;

    // Add order book to XRP only
-    static std::uint32_t const afOB_XRP = 0x010;
+    static std::uint32_t const afOB_XRP       = 0x010;

    // Must link to destination currency
-    static std::uint32_t const afOB_LAST = 0x040;
+    static std::uint32_t const afOB_LAST      = 0x040;

    // Destination account only
-    static std::uint32_t const afAC_LAST = 0x080;
+    static std::uint32_t const afAC_LAST      = 0x080;
 };

+CurrencySet usAccountDestCurrencies
+        (RippleAddress const& raAccountID,
+         RippleLineCache::ref cache,
+         bool includeXRP);
+
+CurrencySet usAccountSourceCurrencies
+        (RippleAddress const& raAccountID,
+         RippleLineCache::ref lrLedger,
+         bool includeXRP);
+
+/** Calculate the maximum amount of IOUs that an account can hold
+    @param ledger the ledger to check against.
+    @param account the account of interest.
+    @param issuer the issuer of the IOU.
+    @param currency the IOU to check.
+    @return The maximum amount that can be held.
+*/
+STAmount
+credit_limit (
+    LedgerEntrySet& ledger, Account const& account,
+    Account const& issuer, Currency const& currency);
+
+/** Returns the amount of IOUs issued by issuer that are held by an account
+    @param ledger the ledger to check against.
+    @param account the account of interest.
+    @param issuer the issuer of the IOU.
+    @param currency the IOU to check.
+*/
+STAmount
+credit_balance (
+    LedgerEntrySet& ledger, Account const& account,
+    Account const& issuer, Currency const& currency);
+
 } // ripple

 #endif
--- a/src/ripple/app/paths/cursor/ReverseLiquidityForAccount.cpp
+++ b/src/ripple/app/paths/cursor/ReverseLiquidityForAccount.cpp
@@ -18,7 +18,6 @@
 //==============================================================================

 #include <ripple/app/book/Quality.h>
-#include <ripple/app/paths/Credit.h>
 #include <ripple/app/paths/cursor/RippleLiquidity.h>

 namespace ripple {
@@ -47,8 +46,8 @@ TER PathCursor::reverseLiquidityForAccount () const
    auto const isFinalNode = (nodeIndex_ == lastNodeIndex);

    // 0 quality means none has yet been determined.
-    std::uint64_t uRateMax = 0
-;
+    std::uint64_t uRateMax = 0;
+
    // Current is allowed to redeem to next.
    const bool previousNodeIsAccount = !nodeIndex_ ||
            previousNode().isAccount();
@@ -81,7 +80,7 @@ TER PathCursor::reverseLiquidityForAccount () const
    // For previousNodeIsAccount:
    // Previous account is already owed.
    const STAmount saPrvOwed = (previousNodeIsAccount && nodeIndex_ != 0)
-        ? creditBalance (ledger(),
+        ? credit_balance (ledger(),
            node().account_,
            previousAccountID,
            node().issue_.currency)
@@ -89,7 +88,7 @@ TER PathCursor::reverseLiquidityForAccount () const

    // The limit amount that the previous account may owe.
    const STAmount saPrvLimit = (previousNodeIsAccount && nodeIndex_ != 0)
-        ? creditLimit (ledger(),
+        ? credit_limit (ledger(),
            node().account_,
            previousAccountID,
            node().issue_.currency)
@@ -97,7 +96,7 @@ TER PathCursor::reverseLiquidityForAccount () const

    // Next account is owed.
    const STAmount saNxtOwed = (nextNodeIsAccount && nodeIndex_ != lastNodeIndex)
-        ? creditBalance (ledger(),
+        ? credit_balance (ledger(),
            node().account_,
            nextAccountID,
            node().issue_.currency)
--- a/src/ripple/data/protocol/BuildInfo.cpp
+++ b/src/ripple/data/protocol/BuildInfo.cpp
@@ -33,7 +33,7 @@ char const* getRawVersionString ()
    //
    //  The build version number (edit this for each release)
    //
-        "0.26.4-sp1"
+        "0.26.4-sp2"
    //
    //  Must follow the format described here:
    //
--- a/src/ripple/rpc/handlers/RipplePathFind.cpp
+++ b/src/ripple/rpc/handlers/RipplePathFind.cpp
@@ -17,8 +17,6 @@
 */
 //==============================================================================

-#include <ripple/app/paths/AccountCurrencies.h>
-#include <ripple/app/paths/FindPaths.h>
 #include <ripple/rpc/impl/LegacyPathFind.h>

 namespace ripple {
@@ -121,10 +119,11 @@ Json::Value doRipplePathFind (RPC::Context& context)
        }
        else
        {
-            auto currencies = accountSourceCurrencies (raSrc, cache, true);
+            auto usCurrencies = usAccountSourceCurrencies (raSrc, cache, true);
+
            jvSrcCurrencies = Json::Value (Json::arrayValue);

-            for (auto const& uCurrency: currencies)
+            for (auto const& uCurrency: usCurrencies)
            {
                Json::Value jvCurrency (Json::objectValue);
                jvCurrency["currency"] = to_string(uCurrency);
@@ -135,9 +134,7 @@ Json::Value doRipplePathFind (RPC::Context& context)
        // Fill in currencies destination will accept
        Json::Value jvDestCur (Json::arrayValue);

-        // TODO(tom): this could be optimized the same way that
-        // PathRequest::doUpdate() is - if we don't obsolete this code first.
-        auto usDestCurrID = accountDestCurrencies (raDst, cache, true);
+        auto usDestCurrID = usAccountDestCurrencies (raDst, cache, true);
        for (auto const& uCurrency: usDestCurrID)
                jvDestCur.append (to_string (uCurrency));

@@ -146,29 +143,6 @@ Json::Value doRipplePathFind (RPC::Context& context)

        Json::Value jvArray (Json::arrayValue);

-        int level = getConfig().PATH_SEARCH_OLD;
-        if ((getConfig().PATH_SEARCH_MAX > level)
-            && !getApp().getFeeTrack().isLoadedLocal())
-        {
-            ++level;
-        }
-
-        if (context.params_.isMember("depth")
-            && context.params_["depth"].isIntegral())
-        {
-            int rLev = context.params_["search_depth"].asInt ();
-            if ((rLev < level) || (context.role_ == Config::ADMIN))
-                level = rLev;
-        }
-
-        FindPaths fp (
-            cache,
-            raSrc.getAccountID(),
-            raDst.getAccountID(),
-            saDstAmount,
-            level,
-            4); // max paths
-
        for (unsigned int i = 0; i != jvSrcCurrencies.size (); ++i)
        {
            Json::Value jvSource        = jvSrcCurrencies[i];
@@ -203,6 +177,11 @@ Json::Value doRipplePathFind (RPC::Context& context)
                return rpcError (rpcSRC_ISR_MALFORMED);
            }

+            STPathSet spsComputed;
+            bool bValid;
+            Pathfinder pf (cache, raSrc, raDst, uSrcCurrencyID,
+                           uSrcIssuerID, saDstAmount, bValid);
+
            int level = getConfig().PATH_SEARCH_OLD;
            if ((getConfig().PATH_SEARCH_MAX > level)
                && !getApp().getFeeTrack().isLoadedLocal())
@@ -217,7 +196,6 @@ Json::Value doRipplePathFind (RPC::Context& context)
                    level = rLev;
            }

-            STPathSet spsComputed;
            if (context.params_.isMember("paths"))
            {
                STParsedJSONObject paths ("paths", context.params_["paths"]);
@@ -227,12 +205,8 @@ Json::Value doRipplePathFind (RPC::Context& context)
                    spsComputed = paths.object.get()->downcast<STPathSet> ();
            }

-            STPath fullLiquidityPath;
-            auto valid = fp.findPathsForIssue (
-                {uSrcCurrencyID, uSrcIssuerID},
-                spsComputed,
-                fullLiquidityPath);
-            if (!valid)
+            STPath extraPath;
+            if (!bValid || !pf.findPaths (level, 4, spsComputed, extraPath))
            {
                WriteLog (lsWARNING, RPCHandler)
                    << "ripple_path_find: No paths found.";
@@ -267,13 +241,13 @@ Json::Value doRipplePathFind (RPC::Context& context)
                    << " saMaxAmountAct=" << rc.actualAmountIn
                    << " saDstAmountAct=" << rc.actualAmountOut;

-                if (fullLiquidityPath.size() > 0 &&
+                if (extraPath.size() > 0 &&
                    (rc.result() == terNO_LINE || rc.result() == tecPATH_PARTIAL))
                {
                    WriteLog (lsDEBUG, PathRequest)
                        << "Trying with an extra path element";

-                    spsComputed.push_back (fullLiquidityPath);
+                    spsComputed.push_back (extraPath);
                    lesSandbox.clear ();
                    rc = path::RippleCalc::rippleCalculate (
                        lesSandbox,
--- a/src/ripple/rpc/impl/TransactionSign.cpp
+++ b/src/ripple/rpc/impl/TransactionSign.cpp
@@ -17,7 +17,6 @@
 */
 //==============================================================================

-#include <ripple/app/paths/FindPaths.h>
 #include <ripple/basics/StringUtilities.h>
 #include <ripple/rpc/impl/TransactionSign.h>
 #include <beast/unit_test.h>
@@ -126,6 +125,7 @@ static Json::Value signPayment(
        && params.isMember ("build_path"))
    {
        // Need a ripple path.
+        STPathSet   spsPaths;
        Currency uSrcCurrencyID;
        Account uSrcIssuerID;

@@ -152,21 +152,22 @@ static Json::Value signPayment(
            if (!lpf.isOk ())
                return rpcError (rpcTOO_BUSY);

+            bool bValid;
            auto cache = std::make_shared<RippleLineCache> (lSnapshot);
-            STPathSet spsPaths;
-            STPath fullLiquidityPath;
-            auto valid = findPathsForOneIssuer (
+            Pathfinder pf (
                cache,
-                raSrcAddressID.getAccountID(),
-                dstAccountID.getAccountID(),
-                saSendMax.issue (),
-                amount,
-                getConfig ().PATH_SEARCH_OLD,
-                4,  // iMaxPaths
-                spsPaths,
-                fullLiquidityPath);
+                raSrcAddressID,
+                dstAccountID,
+                saSendMax.getCurrency (),
+                saSendMax.getIssuer (),
+                amount, bValid);

-            if (!valid)
+            STPath extraPath;
+            if (!bValid ||
+                !pf.findPaths (getConfig ().PATH_SEARCH_OLD,
+                               4,
+                               spsPaths,
+                               extraPath))
            {
                WriteLog (lsDEBUG, RPCHandler)
                        << "transactionSign: build_path: No paths found.";
--- a/src/ripple/unity/app.h
+++ b/src/ripple/unity/app.h
@@ -117,5 +117,7 @@
 #include <ripple/app/main/ParameterTable.h>
 #include <ripple/app/paths/PathState.h>
 #include <ripple/app/paths/RippleCalc.h>
+#include  <ripple/app/paths/Pathfinder.h>
+

 #endif
--- a/src/ripple/unity/app6.cpp
+++ b/src/ripple/unity/app6.cpp
@@ -29,8 +29,5 @@
 #include <ripple/app/ledger/OrderBookIterator.cpp>
 #include <ripple/app/consensus/DisputedTx.cpp>
 #include <ripple/app/misc/HashRouter.cpp>
-#include <ripple/app/paths/AccountCurrencies.cpp>
-#include <ripple/app/paths/Credit.cpp>
-#include <ripple/app/paths/FindPaths.cpp>
 #include <ripple/app/paths/Pathfinder.cpp>
 #include <ripple/app/misc/AmendmentTableImpl.cpp>