RPC: Pass on JSONRPCRequest metadata (URI/user/etc) for "help" method

src/rpc/server.cpp

@@ -178,7 +178,7 @@ vector<unsigned char> ParseHexO(const UniValue& o, string strKey)
  * Note: This interface may still be subject to change.
  */
 
-std::string CRPCTable::help(const std::string& strCommand) const
+std::string CRPCTable::help(const std::string& strCommand, const JSONRPCRequest& helpreq) const
 {
     string strRet;
     string category;
@@ -189,6 +189,10 @@ std::string CRPCTable::help(const std::string& strCommand) const
         vCommands.push_back(make_pair(mi->second->category + mi->first, mi->second));
     sort(vCommands.begin(), vCommands.end());
 
+    JSONRPCRequest jreq(helpreq);
+    jreq.fHelp = true;
+    jreq.params = UniValue();
+
     BOOST_FOREACH(const PAIRTYPE(string, const CRPCCommand*)& command, vCommands)
     {
         const CRPCCommand *pcmd = command.second;
@@ -198,10 +202,9 @@ std::string CRPCTable::help(const std::string& strCommand) const
             continue;
         if ((strCommand != "" || pcmd->category == "hidden") && strMethod != strCommand)
             continue;
+        jreq.strMethod = strMethod;
         try
         {
-            JSONRPCRequest jreq;
-            jreq.fHelp = true;
             rpcfn_type pfn = pcmd->actor;
             if (setDone.insert(pfn).second)
                 (*pfn)(jreq);
@@ -250,7 +253,7 @@ UniValue help(const JSONRPCRequest& jsonRequest)
     if (jsonRequest.params.size() > 0)
         strCommand = jsonRequest.params[0].get_str();
 
-    return tableRPC.help(strCommand);
+    return tableRPC.help(strCommand, jsonRequest);
 }
 
 

src/rpc/server.h

@@ -154,7 +154,7 @@ private:
 public:
     CRPCTable();
     const CRPCCommand* operator[](const std::string& name) const;
-    std::string help(const std::string& name) const;
+    std::string help(const std::string& name, const JSONRPCRequest& helpreq) const;
 
     /**
      * Execute a method.