First Commit

2025-02-27 19:31:50 +01:00
parent bcbb6aff9a
commit e490df1715
2470 changed files with 1479965 additions and 0 deletions
--- a/libraries/MySQL_Connector_Arduino/src/MySQL_Connection.cpp
+++ b/libraries/MySQL_Connector_Arduino/src/MySQL_Connection.cpp
@@ -0,0 +1,116 @@
+/*
+  Copyright (c) 2012, 2016 Oracle and/or its affiliates. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
+
+  MySQL_Connection.cpp - Library for communicating with a MySQL Server over
+                         Ethernet. (formerly mysql.cpp)
+
+  Change History:
+
+  Version 1.0.0a Created by Dr. Charles A. Bell, April 2012.
+  Version 1.0.0b Updated by Dr. Charles A. Bell, October 2013.
+  Version 1.0.1b Updated by Dr. Charles A. Bell, February 2014.
+  Version 1.0.2b Updated by Dr. Charles A. Bell, April 2014.
+  Version 1.0.3rc Updated by Dr. Charles A. Bell, March 2015.
+  Version 1.0.4ga Updated by Dr. Charles A. Bell, July 2015.
+  Version 1.1.0a Created by Dr. Charles A. Bell, January 2016.
+  Version 1.1.1a Created by Dr. Charles A. Bell, January 2016.
+  Version 1.1.2b Created by Dr. Charles A. Bell, November 2016.
+  Version 1.2.0 Created by Dr. Charles A. Bell, March 2020.
+*/
+#include <Arduino.h>
+#include <MySQL_Connection.h>
+#include <MySQL_Encrypt_Sha1.h>
+
+#define MAX_CONNECT_ATTEMPTS 3
+#define CONNECT_DELAY_MS     500
+#define SUCCESS              1
+
+const char CONNECTED[] PROGMEM = "Connected to server version ";
+const char DISCONNECTED[] PROGMEM = "Disconnected.";
+
+/*
+  connect - Connect to a MySQL server.
+
+  This method is used to connect to a MySQL server. It will attempt to
+  connect to the server as a client retrying up to MAX_CONNECT_ATTEMPTS.
+  This permits the possibility of longer than normal network lag times
+  for wireless networks. You can adjust MAX_CONNECT_ATTEMPTS to suit
+  your environment.
+
+  server[in]      IP address of the server as IPAddress type
+  port[in]        port number of the server
+  user[in]        user name
+  password[in]    (optional) user password
+  db[in]          (optional) default database
+
+  Returns boolean - True = connection succeeded
+*/
+boolean MySQL_Connection::connect(IPAddress server, int port, char *user,
+                                  char *password, char *db)
+{
+  int connected = 0;
+  int retries = MAX_CONNECT_ATTEMPTS;
+
+  // Retry up to MAX_CONNECT_ATTEMPTS times.
+  while (retries--)
+  {
+    Serial.println("...trying...");
+    connected = client->connect(server, port);
+    if (connected != SUCCESS) {
+      Serial.print("...got: ");
+      Serial.print(connected);
+      Serial.println(" retrying...");
+      delay(CONNECT_DELAY_MS);
+    } else {
+      break;
+    }
+  }
+
+  if (connected != SUCCESS)
+    return false;
+
+  read_packet();
+  parse_handshake_packet();
+  send_authentication_packet(user, password, db);
+  read_packet();
+  if (get_packet_type() != MYSQL_OK_PACKET) {
+    parse_error_packet();
+    return false;
+  }
+
+  show_error(CONNECTED);
+
+  Serial.println(server_version);
+
+  free(server_version); // don't need it anymore
+  return true;
+}
+
+/*
+  close - cancel the connection
+
+  This method closes the connection to the server and frees up any memory
+  used in the buffer.
+*/
+void MySQL_Connection::close()
+{
+  if (connected())
+  {
+    client->flush();
+    client->stop();
+    show_error(DISCONNECTED, true);
+  }
+}