1 files changed, 24 insertions, 4 deletions
diff --git a/src/main.cpp b/src/main.cpp
index d5fb047aa0..6c193a25e3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1565,6 +1565,26 @@ bool fLargeWorkForkFound = false;
 bool fLargeWorkInvalidChainFound = false;
 CBlockIndex *pindexBestForkTip = NULL, *pindexBestForkBase = NULL;
 
+static void AlertNotify(const std::string& strMessage, bool fThread)
+{
+    uiInterface.NotifyAlertChanged();
+    std::string strCmd = GetArg("-alertnotify", "");
+    if (strCmd.empty()) return;
+
+    // Alert text should be plain ascii coming from a trusted source, but to
+    // be safe we first strip anything not in safeChars, then add single quotes around
+    // the whole string before passing it to the shell:
+    std::string singleQuote("'");
+    std::string safeStatus = SanitizeString(strMessage);
+    safeStatus = singleQuote+safeStatus+singleQuote;
+    boost::replace_all(strCmd, "%s", safeStatus);
+
+    if (fThread)
+        boost::thread t(runCommand, strCmd); // thread runs free
+    else
+        runCommand(strCmd);
+}
+
 void CheckForkWarningConditions()
 {
     AssertLockHeld(cs_main);
@@ -1584,7 +1604,7 @@ void CheckForkWarningConditions()
         {
             std::string warning = std::string("'Warning: Large-work fork detected, forking after block ") +
                 pindexBestForkBase->phashBlock->ToString() + std::string("'");
-            CAlert::Notify(warning, true);
+            AlertNotify(warning, true);
         }
         if (pindexBestForkTip && pindexBestForkBase)
         {
@@ -2115,7 +2135,7 @@ void PartitionCheck(bool (*initialDownloadCheck)(), CCriticalSection& cs, const
     if (!strWarning.empty())
     {
         strMiscWarning = strWarning;
-        CAlert::Notify(strWarning, true);
+        AlertNotify(strWarning, true);
         lastAlertTime = now;
     }
 }
@@ -2545,7 +2565,7 @@ void static UpdateTip(CBlockIndex *pindexNew) {
                 if (state == THRESHOLD_ACTIVE) {
                     strMiscWarning = strprintf(_("Warning: unknown new rules activated (versionbit %i)"), bit);
                     if (!fWarned) {
-                        CAlert::Notify(strMiscWarning, true);
+                        AlertNotify(strMiscWarning, true);
                         fWarned = true;
                     }
                 } else {
@@ -2567,7 +2587,7 @@ void static UpdateTip(CBlockIndex *pindexNew) {
             // strMiscWarning is read by GetWarnings(), called by Qt and the JSON-RPC code to warn the user:
             strMiscWarning = _("Warning: Unknown block versions being mined! It's possible unknown rules are in effect");
             if (!fWarned) {
-                CAlert::Notify(strMiscWarning, true);
+                AlertNotify(strMiscWarning, true);
                 fWarned = true;
             }
         }