config set from the web

src/config.cpp

@@ -8,6 +8,8 @@ const uint8_t CONFIG_SIG[2] = {0xAB, 0xCD};
 const uint8_t CONFIG_VERSION = 1;
 uint8_t CONFIG_EEPROM_ADDR = 0;
 
+const uint8_t CONFIG_FLAG_HTTP = 1 << 0;
+
 void cUWeatherConfig::begin()
 {
   if (!load()) {
@@ -66,12 +68,13 @@ size_t cUWeatherConfig::print(Stream& out)
   size_t len = 0;
 
   sprintf((char*)buff, 
-      "{\"station_id\": \"%s\", \"mdns_hostname\": \"%s\", \"ntp_host\": \"%s\", \"mqtt_host\": \"%s\", \"enable_http\": %s }",
+      "{\"station_id\": \"%s\", \"mdns_hostname\": \"%s\", \"ntp_host\": \"%s\", \"mqtt_host\": \"%s\", \"mqtt_prefix\": \"%s\", \"enable_http\": %s }",
       (char*) _data.station_id,
       (char*) _data.mdns_hostname,
       (char*) _data.ntp_host,
       (char*) _data.mqtt_host,
-      (_data.flags && 1) ?"true":"false"
+      (char*) _data.mqtt_prefix,
+      (_data.flags & CONFIG_FLAG_HTTP) ?"true":"false"
     );
   len += out.print((char*) buff);
   return len;
@@ -105,3 +108,27 @@ bool cUWeatherConfig::setMQTTHost(const char* buff)
   return true;
 }
 
+bool cUWeatherConfig::setMQTTPrefix(const char* buff)
+{
+  if (strlen(buff) >= 32) return false;
+  strncpy((char*)_data.mqtt_prefix, buff, 32);
+  return true;
+}
+
+bool cUWeatherConfig::enableHttp(bool enable)
+{
+  if (enable) {
+    Serial.println("Enable HTTP");
+    _data.flags |= CONFIG_FLAG_HTTP;
+  } else {
+    Serial.println("Disable HTTP");
+    _data.flags &= ~(CONFIG_FLAG_HTTP);
+  }
+
+  return true;
+}
+
+bool cUWeatherConfig::isHttpEnabled() {
+  return (_data.flags & CONFIG_FLAG_HTTP);
+}
+

src/config.h

@@ -10,6 +10,7 @@ typedef struct uweather_config_t {
     uint8_t mdns_hostname[16];
     uint8_t ntp_host[32];
     uint8_t mqtt_host[32];
+    uint8_t mqtt_prefix[32];
     uint8_t flags;
 };
 
@@ -31,6 +32,7 @@ public:
     bool setMDNSHostname(const char*);
     bool setNTPHost(const char*);
     bool setMQTTHost(const char*);
+    bool setMQTTPrefix(const char*);
 };
 
 extern cUWeatherConfig Config;

src/web.cpp

@@ -136,15 +136,40 @@ void handle_config(HttpRequest& req, HttpResponse& res)
 
 void handle_config_set(HttpRequest& req, HttpResponse& res)
 {
-  if (req.getMessageLength() > 128)
-    return client_error("Message is too long", res);
   const char* key = req.getUrl()+8;
-  Serial.println(req.getMessage());
-  if (strcmp("station_id", key)) {
-    Serial.println("Saving station id");
-    // strncpy(config.station_id, req.getMessage(), 15);
-    //config_save();
+  char value[32];  // max size of config param
+
+  // value may have quotes - remove them
+  const char* val_start = req.getMessage();
+  size_t val_len = strlen(val_start);
+  if (val_len > 32)
+    return client_error("Message is too long", res);
+  if (val_start[0] == '"') {
+    val_len -= 2;
+    val_start++;
   }
+  strncpy(value, val_start, val_len);
+  value[val_len] = '\0';
+
+  bool result = false;
+  if (strcmp("station_id", key) == 0) {
+    result = Config.setStationId(value);
+  } else if (strcmp("mdns_hostname", key) == 0) {
+    result = Config.setMDNSHostname(value);
+  } else if (strcmp("ntp_host", key) == 0) {
+    result = Config.setNTPHost(value);
+  } else if (strcmp("mqtt_host", key) == 0) {
+    result = Config.setMQTTHost(value);
+  } else if (strcmp("mqtt_prefix", key) == 0) {
+    result = Config.setMQTTPrefix(value);
+  } else if (strcmp("enable_http", key) == 0) {
+    result = Config.enableHttp((value[0] == '1' || strcmp(value, "true") == 0 || strcmp(value, "Enabled") == 0));
+  }
+
+  if (!result)
+    return client_error("Unable to set parameter", res);
+
+  content.print("What was I supposed to return, again?");
 }
 
 /**