xreef
ftplib can't access the root folder in ESP32/ESP32C3
Hello! Firstly, thanks for the the your good job, I can build my ftp sever easily. I have used version 2.1.7 with my ESP32/ESP32C3 device in PlatformIO environment for a while, it works well. After update it to 2.1.8, I can't access root folder of SD. after I rolled back to 2.1.7, it works again. I tested it with below python code. It will print names of all the files in SD card if it worked.
from ftplib import FTP
def download_and_delete_log_csv_files(host, user, password, remote_dir, local_dir):
with FTP(host) as ftp:
try:
# Attempt to login to the FTP server
ftp.login(user=user, passwd=password)
print("Login successful.")
# Change the current working directory on the server
ftp.cwd(remote_dir)
print(f"Changed working directory to {remote_dir}.")
# Explicitly set passive mode
ftp.set_pasv(True)
# Get a list of all files in the remote directory
files = []
ftp.retrlines('LIST', lambda line: files.append(line))
# Print all files in the directory
print("Files in the remote directory:")
for file_info in files:
filename = file_info.split(None, 8)[-1] # Simplify extracting the filename
print(filename)
except Exception as e:
# Handle any exceptions that occur during the process
print(f"An error occurred: {e}")
host = '192.168.229.145'
user = 'esp8266'
password = 'esp8266'
remote_dir = '/' # Directory on the FTP server
local_dir = r'D:\temp' # Local directory
# Call the function to download and delete log CSV files
download_and_delete_log_csv_files(host, user, password, remote_dir, local_dir)
Hi Xreef, When it works in version 2.1.7. below is my code in PlatformIO, Similar to example,
#include <Arduino.h>
#include <SD.h>
#include <FS.h>
#include <SPI.h>
#include <SimpleFTPServer.h>
#include <WiFi.h>
const char *ssid = "xxx";
const char *password = "xxxxxxxx";
int retryCount = 0;
// define SD
const int CS = 23;
const int SCKPin = 16;
const int MOSIPin = 17;
const int MISOPin = 2;
File myFile;
FtpServer ftpSrv;
void _callback(FtpOperation ftpOperation, unsigned int freeSpace, unsigned int totalSpace)
{
Serial.print(">>>>>>>>>>>>>>> _callback ");
Serial.print(ftpOperation);
/* FTP_CONNECT,
* FTP_DISCONNECT,
* FTP_FREE_SPACE_CHANGE
*/
Serial.print(" ");
Serial.print(freeSpace);
Serial.print(" ");
Serial.println(totalSpace);
// freeSpace : totalSpace = x : 360
if (ftpOperation == FTP_CONNECT)
Serial.println(F("CONNECTED"));
if (ftpOperation == FTP_DISCONNECT)
Serial.println(F("DISCONNECTED"));
};
void _transferCallback(FtpTransferOperation ftpOperation, const char *name, unsigned int transferredSize)
{
Serial.print(">>>>>>>>>>>>>>> _transferCallback ");
Serial.print(ftpOperation);
/* FTP_UPLOAD_START = 0,
* FTP_UPLOAD = 1,
*
* FTP_DOWNLOAD_START = 2,
* FTP_DOWNLOAD = 3,
*
* FTP_TRANSFER_STOP = 4,
* FTP_DOWNLOAD_STOP = 4,
* FTP_UPLOAD_STOP = 4,
*
* FTP_TRANSFER_ERROR = 5,
* FTP_DOWNLOAD_ERROR = 5,
* FTP_UPLOAD_ERROR = 5
*/
Serial.print(" ");
Serial.print(name);
Serial.print(" ");
Serial.println(transferredSize);
};
void setup()
{
Serial.begin(115200);
WiFi.begin(ssid, password);
SPI.begin(SCKPin, MISOPin, MOSIPin, CS);
while (WiFi.status() != WL_CONNECTED)
{
delay(1000);
Serial.println("Connecting to WiFi...");
retryCount++;
if (retryCount > 10)
{
Serial.println("Failed to connect to WiFi");
break;
}
}
if (WiFi.status() == WL_CONNECTED)
{
Serial.println("Connected to the WiFi network");
Serial.print("IP address:");
Serial.println(WiFi.localIP());
}
while (!Serial)
{
;
}
if (!SD.begin(CS))
{
Serial.println("initialization failed!");
return;
}
else
{
Serial.println("SD card initialization succeeded.");
}
myFile = SD.open("/example.txt", FILE_WRITE);
if (myFile)
{
Serial.println("Writing to example.txt");
myFile.println("Hello, FTP Server!");
myFile.close();
Serial.println("Done writing to example.txt");
}
else
{
Serial.println("error opening example.txt");
}
ftpSrv.setCallback(_callback);
ftpSrv.setTransferCallback(_transferCallback);
ftpSrv.begin("esp8266", "esp8266");
}
void loop()
{
ftpSrv.handleFTP();
}
platformIO.ini is as below
[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
lib_deps = xreef/[email protected]
and #define DEFAULT_STORAGE_TYPE_ESP32 STORAGE_SD in FtpServerKey,h.
when I run python code I posted, I got
Login successful.
Changed working directory to /.
Files in the remote directory:
Volume Information
example.txt
When it works in version 2.1.8. All code is the same as above. platformio.ini is as below:
[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
lib_deps = xreef/[email protected]
when I run python code I posted, I got 530 error
Login successful.
Changed working directory to /.
An error occurred: 530
I have a similar issue - ESP8266/Arduino 2.3.2 - using FileZilla it sometimes connects and gets the directory once and after that error message as follows:
Status: Connecting to 192.168.51.47:21...
Status: Connection established, waiting for welcome message...
Status: Plain FTP is insecure. Please switch to FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing...
Command: PWD
Response: 211-Extensions supported:
Response: MLST type*;modify*;size*;
Response: MLSD
Response: MDTM
Response: MFMT
Response: UTF8
Response: SIZE
Response: SITE FREE
Response: 211 End.
Error: Failed to parse returned path.
Error: Failed to retrieve directory listing
Reverting to previous version (2.1.7) resolves the problem.
same here with Arduino core 3.x, esp32-S3, esp32-c3 and LittleFS example esp8266_esp32_LittleFS
esp log show this
[ 12709][E][vfs_api.cpp:23] open(): File system is not mounted
FTP client shows this
Status: Logged in
Status: Retrieving directory listing of "/"...
Command: CWD /
Response: 550 / not found.
Error: Failed to retrieve directory listing
Status: Retrieving directory listing of "/"...
Command: CWD /
Response: 550 / not found.
Error: Failed to retrieve directory listing
Status: Retrieving directory listing of "/"...
Command: CWD /
I have had the same issue. I had thought it was because my ftpserver runs in a separate task, but building the ardunio_esp32_sd example I got the same issue and also the same mounting error. Looking through the ftpserverkey.h file I found the problem. The default store for esp32 in version 2.1.8 is STORAGE_FFAT and not STORAGE_SD. Simply change the default storage type to STORAGE_SD and you should be good.
Relevant section from ftpserverkey.h file in the simpleftpserver library source code as follows:
// esp32 configuration #ifndef DEFAULT_FTP_SERVER_NETWORK_TYPE_ESP32 #define DEFAULT_FTP_SERVER_NETWORK_TYPE_ESP32 NETWORK_ESP32 #define DEFAULT_STORAGE_TYPE_ESP32 STORAGE_SD // STORAGE_FFAT /**
Should say this makes the windows ftp client work perfectly . However still can't get Andftp or other android apps to connect for some reason.
