Arduino wifi file server

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Simple FTP Server and Client for the esp8266/esp32 with LittleFS and SPIFFS support

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dplasa/FTPClientServer

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Simple FTP Server and Client for the esp8266/esp32 with SPIFFS and LittleFS support.

I’ve modified a FTP Server from arduino/wifi shield to work with the esp8266 and the esp32. This allows you to FTP into your esp8266/esp32 and access/modify files and directories on the FS. SPIFFS’s approach to directories is somewhat limited (everything is a file albeit it’s name may contain ‘/’-es). LittleFS (which is not yet available for the esp32) however has full directory support. So with a FTP Server working on SPIFFS there will be no create/modify directory support but with LittleFS there is! The code ist tested it with command line ftp and Filezilla.

The FTP Client is pretty much straight forward. It can upload (put, STOR) a file to a FTP Server or download (get, RETR) a file from a FTP Server. Both ways can be done blocking or non-blocking.

• Server supports both active and passive mode
• Client uses passive mode
• Client/Server both support LittleFS and SPIFFS
• Server (fully) supports directories with LittleFS
• Client supports directories with either filesystem since both FS will just auto-create missing Directories when accessing files.

• Server only allows one ftp control and one data connection at a time. You need to setup Filezilla (or other clients) to respect that, i.e. only allow 1 connection. (In FileZilla go to File/Site Manager then select your site. In Transfer Settings, check «Limit number of simultaneous connections» and set the maximum to 1.) This limitation is also the reason why FuseFS based clients (e.g. curlftpfs) seem to work (i.e. listing directories) but will fail on file operations as they try to open a second control connection for that.
• It does not yet support encryption

This library was tested against the 2.7.1 version of the esp8266 Arduino core library and the 1.0.4 version of the esp32 Arduino core.

Select the desired FS via the contructor

#include FTPServer.h> #include LittleFS.h> FTPServer ftpSrv(LittleFS); // construct with LittleFS // or FTPServer ftpSrv(SPIFFS); // construct with SPIFFS if you need to for backward compatibility

ftpSrv.begin("username", "password");

Handle by calling frequently

ftpSrv.handleFTP(); // place this in e.g. loop()

Select the desired FS via the contructor

#include FTPClient.h> #include LittleFS.h> FTPClient ftpClient(LittleFS); // construct with LittleFS // or FTPClient ftpClient(SPIFFS); // construct with SPIFFS if you need to for backward compatibility

Provide username, password, server, port.

// struct ServerInfo // // String login; // String password; // String servername; // uint16_t port; // >; ServerInfo ftpServerInfo ("username", "password", "server_name_or_ip", 21); ftpClient.begin(ftpServerInfo);

ftpClient.transfer("local_file_path", "remote_file_path", FTPClient::FTP_GET); // get a file blocking ftpClient.transfer("local_file_path", "remote_file_path", FTPClient::FTP_PUT_NONBLOCKING); // put a file non-blocking

Handle non-blocking transfers by calling frequently

ftpClient.handleFTP(); // place this in e.g. loop()

• I forked the Server from https://github.com/nailbuster/esp8266FTPServer which itself was forked from: https://github.com/gallegojm/Arduino-Ftp-Server/tree/master/FtpServer
• Inspiration for the Client was taken from https://github.com/danbicks and his code posted in esp8266/Arduino#1183 (comment)

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Simple FTP Server and Client for the esp8266/esp32 with LittleFS and SPIFFS support

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A simple FTP server for Arduino, ArduinoSAMD WiFiNINA, esp8266, esp32, stm32 and Raspberry Pi Pico W

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xreef/SimpleFTPServer

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README.md

• Raspberry Pi Pico W (Flash: LittleFS) (To test SD and SdFat)
• esp8266 (Flash: SPIFFs, LittleFS. SD: SD, SdFat 2)
• esp32 (SPIFFS, LITTLEFS, FFAT, SD: SD, SdFat)
• stm32 (SdFat, SPI flash)
• Arduino (SD with 8.3 file format, SD: SD, SdFat 2)
• Wio Terminal (SdFat 2, Seed SD, and native FAT)

• 2022-02-02 2.1.6 Fix esp8266 Ethernet (w5x00) issue and explain solution for ESP32 Ethernet (w5x00), add new Networks management
• 2022-01-13 2.1.5 Fix SPIFM external SPI Flash date management (add SPIFM esp32 example)
• 2022-09-21 2.1.4 Add support for Raspberry Pi Pico W and rp2040 boards, Fix SD card config
• 2022-09-20 2.1.3 Soft AP IP management, more disconnect event and SD_MCC
• 2022-05-21 2.1.2 Fix SD path (#19)
• 2022-05-21 2.1.1 Minor fix
• 2022-03-30 2.1.0 Add UTF8 support and enabled It by default (Thanks to @plaber)
• 2022-03-30 2.0.0 Complete support for STM32 with SD and SPI Flash minor bux fix and HELP command support
• 2022-03-17 1.3.0 Fix enc28j60 and w5500 support and restructuring for local settings
• 2022-02-25 1.2.1 Fix anonymous user begin and fix SPIFFS wrong display
• 2022-02-22 1.2.0 Add anonymous user and implement correct RFC (#9 now work correctly with File Explorer)
• 2022-02-01 1.1.1 Add workaround to start FTP server before connection, add end and setLocalIP method.

When I develop a new solution I’d like to divide the application in layer, and so I’d like focus my attention in only one aspect at time.

In detail I separate the REST layer (written inside the microcontroller) and the Front-End (written in Angular, React/Redux or vanilla JS), so I’d like to upload new web interface directly to the microcontroller via FTP.

For static information (Web pages for examples), that not change frequently, esp8266 or esp32 have internal SPIFFS (SPI Flash File System) and you can upload data via Arduino IDE as explained in the article «WeMos D1 mini (esp8266), integrated SPIFFS Filesystem» for esp8266 or «ESP32: integrated SPIFFS FileSystem» for esp32 or with LittleFS «WeMos D1 mini (esp8266), integrated LittleFS Filesystem» but for fast operation and future support It’s usefully use FTP.

/* * FtpServer esp8266 and esp32 with SPIFFS * * AUTHOR: Renzo Mischianti * * https://www.mischianti.org/2020/02/08/ftp-server-on-esp8266-and-esp32 * */ #ifdef ESP8266 #include ESP8266WiFi.h> #elif defined ESP32 #include WiFi.h> #include "SPIFFS.h" #endif #include SimpleFTPServer.h> const char* ssid = "YOUR_SSID"; const char* password = "YOUR_PASS"; FtpServer ftpSrv; //set #define FTP_DEBUG in ESP8266FtpServer.h to see ftp verbose on serial void setup(void)< Serial.begin(115200); WiFi.begin(ssid, password); Serial.println(""); // Wait for connection while (WiFi.status() != WL_CONNECTED) < delay(500); Serial.print("."); > Serial.println(""); Serial.print("Connected to "); Serial.println(ssid); Serial.print("IP address: "); Serial.println(WiFi.localIP()); /////FTP Setup, ensure SPIFFS is started before ftp; ///////// /////FTP Setup, ensure SPIFFS is started before ftp; ///////// #ifdef ESP32 //esp32 we send true to format spiffs if cannot mount if (SPIFFS.begin(true)) < #elif defined ESP8266 if (SPIFFS.begin()) < #endif Serial.println("SPIFFS opened!"); ftpSrv.begin("esp8266","esp8266"); //username, password for ftp. set ports in ESP8266FtpServer.h (default 21, 50009 for PASV) > > void loop(void)< ftpSrv.handleFTP(); //make sure in loop you call handleFTP()!! // server.handleClient(); //example if running a webserver you still need to call .handleClient(); >

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Simple FTP Server for using esp8266/esp32 SPIFFs

License

nailbuster/esp8266FTPServer

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README.md

Simple FTP Server for using esp8266/esp32 SPIFFs

I’ve modified a FTP server from arduino/wifi shield to work with esp8266.

This allows you to FTP into your esp8266 and access/modify the spiffs folder/data. it only allows one ftp connection at a time. very simple for now.

I’ve tested it with Filezilla, and the basics work (upload/download/rename/delete). There’s no create/modify directory support(no directory support in SPIFFS yet).

You need to setup Filezilla(or other client) to only allow 1 connection.. To force FileZilla to use the primary connection for data transfers: Go to File/Site Manager then select your site. In Transfer Settings, check «Limit number of simultaneous connections» and set the maximum to 1

only supports Passive ftp mode.

It does NOT support any encryption, so you’ll have to disable any form of encryption.

feel free to try it out (sample provided). unzip into your arduino library directory (and restart arduino ide).

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