allow configuring insecure connection

Author: cail

src/InfluxDbClient.cpp

@@ -174,6 +174,10 @@ InfluxDBClient::InfluxDBClient(const char *serverUrl, const char *org, const cha
     setConnectionParams(serverUrl, org, bucket, authToken, serverCert);
 }
 
+void InfluxDBClient::setInsecure(bool value){
+  _insecure = value;
+}
+
 void InfluxDBClient::setConnectionParams(const char *serverUrl, const char *org, const char *bucket, const char *authToken, const char *certInfo) {
     clean();
     _serverUrl = serverUrl;
@@ -221,6 +225,8 @@ bool InfluxDBClient::init() {
               wifiClientSec->setCACert(_certInfo);
          }
 #endif    
+        if (_insecure)
+            wifiClientSec->setInsecure();
         _wifiClient = wifiClientSec;
     } else {
         _wifiClient = new WiFiClient;

src/InfluxDbClient.h

@@ -134,6 +134,8 @@ class InfluxDBClient {
     InfluxDBClient(const char *serverUrl, const char *org, const char *bucket, const char *authToken, const char *certInfo);
     // Clears instance.
     ~InfluxDBClient();
+    // Allows insecure connection
+    void setInsecure(bool value);
     // precision - timestamp precision of written data
     // batchSize - number of points that will be written to the databases at once. Default 1 - writes immediately
     // bufferSize - maximum size of Points buffer. Buffer contains new data that will be written to the database
@@ -242,6 +244,8 @@ class InfluxDBClient {
 #ifdef  ESP8266
   BearSSL::X509List *_cert = nullptr;   
 #endif
+    // if true - allow insecure connection
+    int _insecure = 0;
     // Store retry timeout suggested by server after last request
     int _lastRetryAfter = 0;
     // Sends POST request with data in body