From 22dfd7359863217eb8caef75084cfa8fa8e1d8fb Mon Sep 17 00:00:00 2001
From: coderrr <coderrr.contact@gmail.com>
Date: Wed, 1 Aug 2012 12:48:42 -0400
Subject: Add address groupings RPC from the coincontrol patches.

Signed-off-by: Gregory Maxwell <greg@xiph.org>
---
 src/wallet.cpp | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)

(limited to 'src/wallet.cpp')

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 07a5047cef..87792e50ee 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1620,6 +1620,129 @@ int64 CWallet::GetOldestKeyPoolTime()
     return keypool.nTime;
 }
 
+std::map<std::string, int64> CWallet::GetAddressBalances()
+{
+    map<string, 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 (int i = 0; i < pcoin->vout.size(); i++)
+            {
+                if (!IsMine(pcoin->vout[i]))
+                    continue;
+
+                int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
+
+                string addr = pcoin->GetAddressOfTxOut(i);
+                if (!balances.count(addr))
+                    balances[addr] = 0;
+                balances[addr] += n;
+            }
+        }
+    }
+
+    return balances;
+}
+
+set< set<string> > CWallet::GetAddressGroupings()
+{
+    set< set<string> > groupings;
+    set<string> grouping;
+
+    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;
+
+        if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
+        {
+            // group all input addresses with each other
+            BOOST_FOREACH(CTxIn txin, pcoin->vin)
+                grouping.insert(mapWallet[txin.prevout.hash].GetAddressOfTxOut(txin.prevout.n));
+
+            // group change with input addresses
+            BOOST_FOREACH(CTxOut txout, pcoin->vout)
+                if (IsChange(txout))
+                {
+                    CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
+                    string addr = tx.GetAddressOfTxOut(pcoin->vin[0].prevout.n);
+                    CTxDestination txoutAddr;
+                    ExtractDestination(txout.scriptPubKey, txoutAddr);
+                    grouping.insert(CBitcoinAddress(txoutAddr).ToString());
+                }
+            groupings.insert(grouping);
+            grouping.clear();
+        }
+
+        // group lone addrs by themselves
+        for (int i = 0; i < pcoin->vout.size(); i++)
+            if (IsMine(pcoin->vout[i]))
+            {
+                grouping.insert(pcoin->GetAddressOfTxOut(i));
+                groupings.insert(grouping);
+                grouping.clear();
+            }
+    }
+
+    set< set<string>* > uniqueGroupings; // a set of pointers to groups of addresses
+    map< string, set<string>* > setmap;  // map addresses to the unique group containing it
+    BOOST_FOREACH(set<string> grouping, groupings)
+    {
+        // make a set of all the groups hit by this new group
+        set< set<string>* > hits;
+        map< string, set<string>* >::iterator it;
+        BOOST_FOREACH(string 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<string>* merged = new set<string>(grouping);
+        BOOST_FOREACH(set<string>* hit, hits)
+        {
+            merged->insert(hit->begin(), hit->end());
+            uniqueGroupings.erase(hit);
+            delete hit;
+        }
+        uniqueGroupings.insert(merged);
+
+        // update setmap
+        BOOST_FOREACH(string element, *merged)
+            setmap[element] = merged;
+    }
+
+    set< set<string> > ret;
+    BOOST_FOREACH(set<string>* uniqueGrouping, uniqueGroupings)
+    {
+        ret.insert(*uniqueGrouping);
+        delete uniqueGrouping;
+    }
+
+    return ret;
+}
+
 CPubKey CReserveKey::GetReservedKey()
 {
     if (nIndex == -1)
-- 
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