add qol fix for oldfag clients or those who inexplicably have the legacy console turned ON

include/llarp/logger.hpp

@@ -37,15 +37,28 @@ namespace llarp
     LogLevel minlevel = eLogInfo;
     std::ostream& out;
     llarp::util::Mutex access;
+#ifdef _WIN32
+    bool isConsoleModern =
+        true;  // qol fix so oldfag clients don't see ugly escapes
+    HANDLE fd1 = GetStdHandle(STD_OUTPUT_HANDLE);
+    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
+    short old_attrs;
+#endif
     Logger() : Logger(std::cout, "unnamed")
     {
 #ifdef _WIN32
+      // Attempt to use ANSI escapes directly
+      // if the modern console is active.
       DWORD mode_flags;
-      HANDLE fd1 = GetStdHandle(STD_OUTPUT_HANDLE);
+
       GetConsoleMode(fd1, &mode_flags);
       // since release SDKs don't have ANSI escape support yet
-      mode_flags |= 0x0004;
-      SetConsoleMode(fd1, mode_flags);
+      // we get all or nothing: if we can't get it, then we wouldn't
+      // be able to get any of them individually
+      mode_flags |= 0x0004 | 0x0008;
+      BOOL t = SetConsoleMode(fd1, mode_flags);
+      if(!t)
+        this->isConsoleModern = false;  // fall back to setting colours manually
 #endif
     }
 
@@ -144,27 +157,68 @@ namespace llarp
         break;
     }
 #else
-    switch(lvl)
+#ifdef _WIN32
+    if(_glog.isConsoleModern)
     {
-      case eLogNone:
-        break;
-      case eLogDebug:
-        ss << (char)27 << "[0m";
-        ss << "[DBG] ";
-        break;
-      case eLogInfo:
-        ss << (char)27 << "[1m";
-        ss << "[NFO] ";
-        break;
-      case eLogWarn:
-        ss << (char)27 << "[1;33m";
-        ss << "[WRN] ";
-        break;
-      case eLogError:
-        ss << (char)27 << "[1;31m";
-        ss << "[ERR] ";
-        break;
+#endif
+      switch(lvl)
+      {
+        case eLogNone:
+          break;
+        case eLogDebug:
+          ss << (char)27 << "[0m";
+          ss << "[DBG] ";
+          break;
+        case eLogInfo:
+          ss << (char)27 << "[1m";
+          ss << "[NFO] ";
+          break;
+        case eLogWarn:
+          ss << (char)27 << "[1;33m";
+          ss << "[WRN] ";
+          break;
+        case eLogError:
+          ss << (char)27 << "[1;31m";
+          ss << "[ERR] ";
+          break;
+      }
+#ifdef _WIN32
+    }
+    else  // legacy console
+    {
+      // these _should_ be low white on black
+      GetConsoleScreenBufferInfo(_glog.fd1, &_glog.consoleInfo);
+      _glog.old_attrs = _glog.consoleInfo.wAttributes;
+      switch(lvl)
+      {
+        case eLogNone:
+          break;
+        case eLogDebug:
+          SetConsoleTextAttribute(_glog.fd1,
+                                  FOREGROUND_RED | FOREGROUND_GREEN
+                                      | FOREGROUND_BLUE);  // low white on black
+          ss << "[DBG] ";
+          break;
+        case eLogInfo:
+          SetConsoleTextAttribute(_glog.fd1,
+              FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN
+                  | FOREGROUND_BLUE);  // high white on black
+          ss << "[NFO] ";
+          break;
+        case eLogWarn:
+          SetConsoleTextAttribute(_glog.fd1,
+                                  FOREGROUND_RED | FOREGROUND_GREEN
+                                      | FOREGROUND_INTENSITY);  // bright yellow
+          ss << "[WRN] ";
+          break;
+        case eLogError:
+          SetConsoleTextAttribute(
+              _glog.fd1, FOREGROUND_RED | FOREGROUND_INTENSITY);  // bright red
+          ss << "[ERR] ";
+          break;
+      }
     }
+#endif
 #endif
     std::string tag = fname;
     ss << _glog.nodeName << " (" << thread_id_string() << ") "
@@ -172,8 +226,23 @@ namespace llarp
     ss << "\t";
     LogAppend(ss, std::forward< TArgs >(args)...);
 #ifndef ANDROID
-    ss << (char)27 << "[0;0m";
-    _glog.out << ss.str() << std::endl;
+#ifdef _WIN32
+    if(_glog.isConsoleModern)
+    {
+#endif
+      ss << (char)27 << "[0;0m";
+      glog.out << ss.str() << std::endl;
+#ifdef _WIN32
+    }
+	else
+	{
+          glog.out << ss.str() << std::endl;
+          SetConsoleTextAttribute(
+              _glog.fd1, FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
+	}
+      
+#endif
+    _
 #else
     {
       tag = "LOKINET|" + tag;