Remove p2p alert handling

src/main.cpp

@@ -6,7 +6,6 @@
 #include "main.h"
 
 #include "addrman.h"
-#include "alert.h"
 #include "arith_uint256.h"
 #include "chainparams.h"
 #include "checkpoints.h"
@@ -4213,14 +4212,8 @@ void static CheckBlockIndex(const Consensus::Params& consensusParams)
     assert(nNodes == forward.size());
 }
 
-//////////////////////////////////////////////////////////////////////////////
-//
-// CAlert
-//
-
 std::string GetWarnings(const std::string& strFor)
 {
-    int nPriority = 0;
     string strStatusBar;
     string strRPC;
     string strGUI;
@@ -4236,37 +4229,20 @@ std::string GetWarnings(const std::string& strFor)
     // Misc warnings like out of disk space and clock is wrong
     if (strMiscWarning != "")
     {
-        nPriority = 1000;
         strStatusBar = strGUI = strMiscWarning;
     }
 
     if (fLargeWorkForkFound)
     {
-        nPriority = 2000;
         strStatusBar = strRPC = "Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues.";
         strGUI = _("Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues.");
     }
     else if (fLargeWorkInvalidChainFound)
     {
-        nPriority = 2000;
         strStatusBar = strRPC = "Warning: We do not appear to fully agree with our peers! You may need to upgrade, or other nodes may need to upgrade.";
         strGUI = _("Warning: We do not appear to fully agree with our peers! You may need to upgrade, or other nodes may need to upgrade.");
     }
 
-    // Alerts
-    {
-        LOCK(cs_mapAlerts);
-        BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
-        {
-            const CAlert& alert = item.second;
-            if (alert.AppliesToMe() && alert.nPriority > nPriority)
-            {
-                nPriority = alert.nPriority;
-                strStatusBar = strGUI = alert.strStatusBar;
-            }
-        }
-    }
-
     if (strFor == "gui")
         return strGUI;
     else if (strFor == "statusbar")
@@ -4588,13 +4564,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             }
         }
 
-        // Relay alerts
-        {
-            LOCK(cs_mapAlerts);
-            BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
-                item.second.RelayTo(pfrom);
-        }
-
         pfrom->fSuccessfullyConnected = true;
 
         string remoteAddr;
@@ -5302,37 +5271,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
     }
 
 
-    else if (fAlerts && strCommand == NetMsgType::ALERT)
-    {
-        CAlert alert;
-        vRecv >> alert;
-
-        uint256 alertHash = alert.GetHash();
-        if (pfrom->setKnown.count(alertHash) == 0)
-        {
-            if (alert.ProcessAlert(chainparams.AlertKey()))
-            {
-                // Relay
-                pfrom->setKnown.insert(alertHash);
-                {
-                    LOCK(cs_vNodes);
-                    BOOST_FOREACH(CNode* pnode, vNodes)
-                        alert.RelayTo(pnode);
-                }
-            }
-            else {
-                // Small DoS penalty so peers that send us lots of
-                // duplicate/expired/invalid-signature/whatever alerts
-                // eventually get banned.
-                // This isn't a Misbehaving(100) (immediate ban) because the
-                // peer might be an older or different implementation with
-                // a different signature key, etc.
-                Misbehaving(pfrom->GetId(), 10);
-            }
-        }
-    }
-
-
     else if (strCommand == NetMsgType::FILTERLOAD)
     {
         CBloomFilter filter;