Merge pull request #1672 from gmaxwell/filter_listunspent

Listunspent txout address filtering and listaddressgroupings

1 files changed, 123 insertions, 0 deletions

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 5ca501b1af..dc019d4924 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1608,6 +1608,129 @@ int64 CWallet::GetOldestKeyPoolTime()
     return keypool.nTime;
 }
 
+std::map<CTxDestination, int64> CWallet::GetAddressBalances()
+{
+    map<CTxDestination, int64> balances;
+
+    {
+        LOCK(cs_wallet);
+        BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
+        {
+            CWalletTx *pcoin = &walletEntry.second;
+
+            if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
+                continue;
+
+            if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
+                continue;
+
+            int nDepth = pcoin->GetDepthInMainChain();
+            if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
+                continue;
+
+            for (unsigned int i = 0; i < pcoin->vout.size(); i++)
+            {
+                CTxDestination addr;
+                if (!IsMine(pcoin->vout[i]))
+                    continue;
+                if(!ExtractDestination(pcoin->vout[i].scriptPubKey, addr))
+                    continue;
+
+                int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
+
+                if (!balances.count(addr))
+                    balances[addr] = 0;
+                balances[addr] += n;
+            }
+        }
+    }
+
+    return balances;
+}
+
+set< set<CTxDestination> > CWallet::GetAddressGroupings()
+{
+    set< set<CTxDestination> > groupings;
+    set<CTxDestination> grouping;
+
+    BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
+    {
+        CWalletTx *pcoin = &walletEntry.second;
+
+        if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
+        {
+            // group all input addresses with each other
+            BOOST_FOREACH(CTxIn txin, pcoin->vin)
+            {
+                CTxDestination address;
+                if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address))
+                    continue;
+                grouping.insert(address);
+            }
+
+            // group change with input addresses
+            BOOST_FOREACH(CTxOut txout, pcoin->vout)
+                if (IsChange(txout))
+                {
+                    CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
+                    CTxDestination txoutAddr;
+                    if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
+                        continue;
+                    grouping.insert(txoutAddr);
+                }
+            groupings.insert(grouping);
+            grouping.clear();
+        }
+
+        // group lone addrs by themselves
+        for (unsigned int i = 0; i < pcoin->vout.size(); i++)
+            if (IsMine(pcoin->vout[i]))
+            {
+                CTxDestination address;
+                if(!ExtractDestination(pcoin->vout[i].scriptPubKey, address))
+                    continue;
+                grouping.insert(address);
+                groupings.insert(grouping);
+                grouping.clear();
+            }
+    }
+
+    set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
+    map< CTxDestination, set<CTxDestination>* > setmap;  // map addresses to the unique group containing it
+    BOOST_FOREACH(set<CTxDestination> grouping, groupings)
+    {
+        // make a set of all the groups hit by this new group
+        set< set<CTxDestination>* > hits;
+        map< CTxDestination, set<CTxDestination>* >::iterator it;
+        BOOST_FOREACH(CTxDestination address, grouping)
+            if ((it = setmap.find(address)) != setmap.end())
+                hits.insert((*it).second);
+
+        // merge all hit groups into a new single group and delete old groups
+        set<CTxDestination>* merged = new set<CTxDestination>(grouping);
+        BOOST_FOREACH(set<CTxDestination>* hit, hits)
+        {
+            merged->insert(hit->begin(), hit->end());
+            uniqueGroupings.erase(hit);
+            delete hit;
+        }
+        uniqueGroupings.insert(merged);
+
+        // update setmap
+        BOOST_FOREACH(CTxDestination element, *merged)
+            setmap[element] = merged;
+    }
+
+    set< set<CTxDestination> > ret;
+    BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
+    {
+        ret.insert(*uniqueGrouping);
+        delete uniqueGrouping;
+    }
+
+    return ret;
+}
+
 CPubKey CReserveKey::GetReservedKey()
 {
     if (nIndex == -1)