From 67a11bd6c5c28edc5f24574595380c1ddf8becf4 Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Wed, 23 Jan 2013 11:48:17 -0500
Subject: [PATCH] Add a getaddednodeinfo RPC.

---
 src/bitcoinrpc.cpp |  2 +
 src/bitcoinrpc.h   |  1 +
 src/rpcnet.cpp     | 92 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 95 insertions(+)

diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 910d52a9..7751e4c8 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -202,6 +202,7 @@ static const CRPCCommand vRPCCommands[] =
     { "getconnectioncount",     &getconnectioncount,     true,   false },
     { "getpeerinfo",            &getpeerinfo,            true,   false },
     { "addnode",                &addnode,                true,   true },
+    { "getaddednodeinfo",       &getaddednodeinfo,       true,   true },
     { "getdifficulty",          &getdifficulty,          true,   false },
     { "getgenerate",            &getgenerate,            true,   false },
     { "setgenerate",            &setgenerate,            true,   false },
@@ -1180,6 +1181,7 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     // Special case non-string parameter types
     //
     if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
+    if (strMethod == "getaddednodeinfo"       && n > 0) ConvertTo<bool>(params[0]);
     if (strMethod == "setgenerate"            && n > 0) ConvertTo<bool>(params[0]);
     if (strMethod == "setgenerate"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
     if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
diff --git a/src/bitcoinrpc.h b/src/bitcoinrpc.h
index 4e4ac4ff..36bfbe3e 100644
--- a/src/bitcoinrpc.h
+++ b/src/bitcoinrpc.h
@@ -133,6 +133,7 @@ extern void EnsureWalletIsUnlocked();
 extern json_spirit::Value getconnectioncount(const json_spirit::Array& params, bool fHelp); // in rpcnet.cpp
 extern json_spirit::Value getpeerinfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value addnode(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value getaddednodeinfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
 extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
 
diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index f3b41e5b..4db3be93 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -107,3 +107,95 @@ Value addnode(const Array& params, bool fHelp)
     return Value::null;
 }
 
+Value getaddednodeinfo(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 2)
+        throw runtime_error(
+            "getaddednodeinfo <dns> [node]\n"
+            "Returns information about the given added node, or all added nodes\n"
+            "(note that onetry addnodes are not listed here)\n"
+            "If dns is false, only a list of added nodes will be provided,\n"
+            "otherwise connected information will also be available.");
+
+    bool fDns = params[0].get_bool();
+
+    list<string> laddedNodes(0);
+    if (params.size() == 1)
+    {
+        LOCK(cs_vAddedNodes);
+        BOOST_FOREACH(string& strAddNode, vAddedNodes)
+            laddedNodes.push_back(strAddNode);
+    }
+    else
+    {
+        string strNode = params[1].get_str();
+        LOCK(cs_vAddedNodes);
+        BOOST_FOREACH(string& strAddNode, vAddedNodes)
+            if (strAddNode == strNode)
+            {
+                laddedNodes.push_back(strAddNode);
+                break;
+            }
+        if (laddedNodes.size() == 0)
+            throw JSONRPCError(-24, "Error: Node has not been added.");
+    }
+
+    if (!fDns)
+    {
+        Object ret;
+        BOOST_FOREACH(string& strAddNode, laddedNodes)
+            ret.push_back(Pair("addednode", strAddNode));
+        return ret;
+    }
+
+    Array ret;
+
+    list<pair<string, vector<CService> > > laddedAddreses(0);
+    BOOST_FOREACH(string& strAddNode, laddedNodes)
+    {
+        vector<CService> vservNode(0);
+        if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
+            laddedAddreses.push_back(make_pair(strAddNode, vservNode));
+        else
+        {
+            Object obj;
+            obj.push_back(Pair("addednode", strAddNode));
+            obj.push_back(Pair("connected", false));
+            Array addresses;
+            obj.push_back(Pair("addresses", addresses));
+        }
+    }
+
+    LOCK(cs_vNodes);
+    for (list<pair<string, vector<CService> > >::iterator it = laddedAddreses.begin(); it != laddedAddreses.end(); it++)
+    {
+        Object obj;
+        obj.push_back(Pair("addednode", it->first));
+
+        Array addresses;
+        bool fConnected = false;
+        BOOST_FOREACH(CService& addrNode, it->second)
+        {
+            bool fFound = false;
+            Object node;
+            node.push_back(Pair("address", addrNode.ToString()));
+            BOOST_FOREACH(CNode* pnode, vNodes)
+                if (pnode->addr == addrNode)
+                {
+                    fFound = true;
+                    fConnected = true;
+                    node.push_back(Pair("connected", pnode->fInbound ? "inbound" : "outbound"));
+                    break;
+                }
+            if (!fFound)
+                node.push_back(Pair("connected", "false"));
+            addresses.push_back(node);
+        }
+        obj.push_back(Pair("connected", fConnected));
+        obj.push_back(Pair("addresses", addresses));
+        ret.push_back(obj);
+    }
+
+    return ret;
+}
+