Merge pull request #12 from lora-aprs/add_ftp_server

Add ftp server

data/is-cfg.json

@@ -47,5 +47,12 @@
 		"always_on": true,
 		"timeout":10,
 		"overwrite_pin":0
+	},
+	"ftp":
+	{
+		"active":false,
+		"user": [
+			{ "name":"ftp", "password":"ftp" }
+		]
 	}
 }

platformio.ini

@@ -15,6 +15,7 @@ lib_deps =
 	sandeepmistry/LoRa @ 0.7.2
 	peterus/APRS-Decoder-Lib @ 0.0.5
 	peterus/APRS-IS-Lib @ 0.0.7
+	https://github.com/peterus/ESP-FTP-Server-Lib @ 0.9.3
 	peterus/LoRa-APRS-Lib @ 0.0.5
 check_tool = cppcheck
 check_flags =

src/LoRa_APRS_iGate.cpp

@@ -6,6 +6,9 @@
 #include <WiFiUdp.h>
 #include <ArduinoOTA.h>
 #include <APRS-IS.h>
+#include <SPIFFS.h>
+#include <ESP-FTP-Server-Lib.h>
+#include <FTPFilesystem.h>
 
 #include "LoRa_APRS.h"
 
@@ -28,6 +31,7 @@ volatile uint secondsSinceDisplay = 0;
 WiFiMulti WiFiMulti;
 WiFiUDP ntpUDP;
 NTPClient timeClient(ntpUDP, 60*60);
+FTPServer ftpServer;
 Configuration Config;
 APRS_IS * aprs_is = 0;
 LoRa_APRS lora_aprs;
@@ -43,6 +47,7 @@ void setup_lora();
 void setup_ntp();
 void setup_aprs_is();
 void setup_timer();
+void setup_ftp();
 
 std::map<uint, std::shared_ptr<APRSMessage>> lastMessages;
 
@@ -77,6 +82,7 @@ void setup()
 		setup_wifi();
 		setup_ota();
 		setup_ntp();
+		setup_ftp();
 	}
 	else
 	{
@@ -133,6 +139,22 @@ void loop()
 		beacon_digi = true;
 	}
 
+	if(Config.ftp.active)
+	{
+		ftpServer.handle();
+		static bool configWasOpen = false;
+		if(configWasOpen && ftpServer.countConnections() == 0)
+		{
+			Serial.println("[WARN] Maybe the config has been changed via FTP, lets restart now to get the new config...");
+			Serial.println();
+			ESP.restart();
+		}
+		if(ftpServer.countConnections() > 0)
+		{
+			configWasOpen = true;
+		}
+	}
+
 	if(Config.wifi.active) ArduinoOTA.handle();
 	if(Config.wifi.active && WiFiMulti.run() != WL_CONNECTED)
 	{
@@ -424,6 +446,23 @@ void setup_timer()
 	timerAlarmEnable(timer);
 }
 
+void setup_ftp()
+{
+	if(!Config.ftp.active)
+	{
+		return;
+	}
+	for(Configuration::Ftp::User user : Config.ftp.users)
+	{
+		Serial.print("[INFO] Adding user to FTP Server: ");
+		Serial.println(user.name);
+		ftpServer.addUser(user.name, user.password);
+	}
+	ftpServer.addFilesystem("SPIFFS", &SPIFFS);
+	ftpServer.begin();
+	Serial.println("[INFO] FTP Server init done!");
+}
+
 String create_lat_aprs(double lat)
 {
 	char str[20];

src/configuration.cpp

@@ -31,8 +31,10 @@ Configuration ConfigurationManagement::readConfiguration()
 		Serial.println("Failed to open file for reading...");
 		return Configuration();
 	}
-	DynamicJsonDocument data(1024);
+	DynamicJsonDocument data(2048);
 	deserializeJson(data, file);
+	//serializeJson(data, Serial);
+	//Serial.println();
 	file.close();
 
 	Configuration conf;
@@ -75,6 +77,18 @@ Configuration ConfigurationManagement::readConfiguration()
 		conf.lora.signalBandwidth = data["lora"]["signal_bandwidth"];
 		conf.lora.codingRate4     = data["lora"]["coding_rate4"];
 	}
+	if(data["version"] >= 4)
+	{
+		conf.ftp.active           = data["ftp"]["active"];
+		JsonArray users           = data["ftp"]["user"].as<JsonArray>();
+		for(JsonVariant u : users)
+		{
+			Configuration::Ftp::User us;
+			us.name               = u["name"].as<String>();
+			us.password           = u["password"].as<String>();
+			conf.ftp.users.push_back(us);
+		}
+	}
 
 	// update config in memory to get the new fields:
 	writeConfiguration(conf);
@@ -90,7 +104,7 @@ void ConfigurationManagement::writeConfiguration(Configuration conf)
 		Serial.println("Failed to open file for writing...");
 		return;
 	}
-	DynamicJsonDocument data(1024);
+	DynamicJsonDocument data(2048);
 
 	data["version"]                         = conf.version;
 	data["callsign"]                        = conf.callsign;
@@ -124,6 +138,14 @@ void ConfigurationManagement::writeConfiguration(Configuration conf)
 	data["display"]["always_on"]            = conf.display.alwaysOn;
 	data["display"]["timeout"]              = conf.display.timeout;
 	data["display"]["overwrite_pin"]        = conf.display.overwritePin;
+	data["ftp"]["active"]                   = conf.ftp.active;
+	JsonArray users = data["ftp"].createNestedArray("user");
+	for(Configuration::Ftp::User u : conf.ftp.users)
+	{
+		JsonObject v = users.createNestedObject();
+		v["name"] = u.name;
+		v["password"] = u.password;
+	}
 
 	serializeJson(data, file);
 	//serializeJson(data, Serial);

src/configuration.h

@@ -82,7 +82,23 @@ public:
 		int overwritePin;
 	};
 
-	Configuration() : version(3), callsign("NOCALL-10") {};
+	class Ftp
+	{
+	public:
+		class User
+		{
+		public:
+			String name;
+			String password;
+		};
+
+		Ftp() : active(false) {}
+
+		bool active;
+		std::list<User> users;
+	};
+
+	Configuration() : version(4), callsign("NOCALL-10") {};
 
 	int version;
 	String callsign;
@@ -92,6 +108,7 @@ public:
 	Digi digi;
 	LoRa lora;
 	Display display;
+	Ftp ftp;
 };
 
 class ConfigurationManagement