Clean up some straggler NRF52 json (#5628)

src/mqtt/MQTT.cpp

@@ -19,8 +19,10 @@
 #include <WiFi.h>
 #endif
 #include "Default.h"
+#if !defined(ARCH_NRF52) || NRF52_USE_JSON
 #include "serialization/JSON.h"
 #include "serialization/MeshPacketSerializer.h"
+#endif
 #include <Throttle.h>
 #include <assert.h>
 #include <pb_decode.h>
@@ -119,6 +121,7 @@ inline void onReceiveProto(char *topic, byte *payload, size_t length)
         router->enqueueReceivedMessage(p.release());
 }
 
+#if !defined(ARCH_NRF52) || NRF52_USE_JSON
 // returns true if this is a valid JSON envelope which we accept on downlink
 inline bool isValidJsonEnvelope(JSONObject &json)
 {
@@ -204,6 +207,7 @@ inline void onReceiveJson(byte *payload, size_t length)
         LOG_DEBUG("JSON ignore downlink message with unsupported type");
     }
 }
+#endif
 
 /// Determines if the given IPAddress is a private IPv4 address, i.e. not routable on the public internet.
 bool isPrivateIpAddress(const IPAddress &ip)
@@ -227,6 +231,16 @@ bool isPrivateIpAddress(const IPAddress &ip)
     }
     return false;
 }
+
+std::pair<std::string, uint16_t> parseHostAndPort(std::string address, uint16_t port = 0)
+{
+    const size_t delimIndex = address.find_first_of(':');
+    if (delimIndex > 0) {
+        port = std::stoul(address.substr(delimIndex + 1, address.length()));
+        address.resize(delimIndex);
+    }
+    return std::make_pair(std::move(address), port);
+}
 } // namespace
 
 void MQTT::mqttCallback(char *topic, byte *payload, unsigned int length)
@@ -248,6 +262,7 @@ void MQTT::onReceive(char *topic, byte *payload, size_t length)
 
     // check if this is a json payload message by comparing the topic start
     if (moduleConfig.mqtt.json_enabled && (strncmp(topic, jsonTopic.c_str(), jsonTopic.length()) == 0)) {
+#if !defined(ARCH_NRF52) || NRF52_USE_JSON
         // parse the channel name from the topic string
         // the topic has been checked above for having jsonTopic prefix, so just move past it
         char *channelName = topic + jsonTopic.length();
@@ -261,6 +276,7 @@ void MQTT::onReceive(char *topic, byte *payload, size_t length)
             return;
         }
         onReceiveJson(payload, length);
+#endif
         return;
     }
 
@@ -302,7 +318,8 @@ MQTT::MQTT() : concurrency::OSThread("mqtt"), mqttQueue(MAX_MQTT_QUEUE)
         }
 
         IPAddress ip;
-        isMqttServerAddressPrivate = ip.fromString(moduleConfig.mqtt.address) && isPrivateIpAddress(ip);
+        isMqttServerAddressPrivate =
+            ip.fromString(parseHostAndPort(moduleConfig.mqtt.address).first.c_str()) && isPrivateIpAddress(ip);
 
 #if HAS_NETWORKING
         if (!moduleConfig.mqtt.proxy_to_client_enabled)
@@ -418,14 +435,9 @@ void MQTT::reconnect()
         pubSub.setClient(mqttClient);
 #endif
 
-        String server = String(serverAddr);
-        int delimIndex = server.indexOf(':');
-        if (delimIndex > 0) {
-            String port = server.substring(delimIndex + 1, server.length());
-            server[delimIndex] = 0;
-            serverPort = port.toInt();
-            serverAddr = server.c_str();
-        }
+        std::pair<std::string, uint16_t> hostAndPort = parseHostAndPort(serverAddr, serverPort);
+        serverAddr = hostAndPort.first.c_str();
+        serverPort = hostAndPort.second;
         pubSub.setServer(serverAddr, serverPort);
         pubSub.setBufferSize(512);
 

src/mqtt/MQTT.h

@@ -5,7 +5,9 @@
 #include "concurrency/OSThread.h"
 #include "mesh/Channels.h"
 #include "mesh/generated/meshtastic/mqtt.pb.h"
+#if !defined(ARCH_NRF52) || NRF52_USE_JSON
 #include "serialization/JSON.h"
+#endif
 #if HAS_WIFI
 #include <WiFiClient.h>
 #if !defined(ARCH_PORTDUINO)