From 04cdb224abced58d0dd50905fa04317ce4725f41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Xose=20P=C3=A9rez?= <xose.perez@gmail.com>
Date: Sat, 24 Mar 2018 00:11:45 +0100
Subject: [PATCH] Check free heap when DEBUG_WEB_SUPPORT is enabled to prevent
 resets

---
 code/espurna/debug.ino | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/code/espurna/debug.ino b/code/espurna/debug.ino
index 08318ab5..554e3fdc 100644
--- a/code/espurna/debug.ino
+++ b/code/espurna/debug.ino
@@ -61,12 +61,16 @@ void _debugSend(char * message) {
     #endif
 
     #if DEBUG_WEB_SUPPORT
-        if (wsConnected()) {
-            char buffer[strlen(message) + 24];
+        if (wsConnected() && (getFreeHeap() > 10000)) {
+            String m = String(message);
+            m.replace("\"", "&quot;");
+            m.replace("{", "&#123");
+            m.replace("}", "&#125");
+            char buffer[m.length() + 24];
             #if DEBUG_ADD_TIMESTAMP
-                snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s%s\"}"), timestamp, message);
+                snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s%s\"}"), timestamp, m.c_str());
             #else
-                snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s\"}"), message);
+                snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s\"}"), m.c_str());
             #endif
             wsSend(buffer);
         }