Server working but directory always empty

[monaco87]

Hi,

I have an ESP32 application which logs to a LittleFS root. Each time the log file is updated I send a directory listing to the serial port and I can see the file under “/” and its size, which has increased.

When I connect to the FTP server and “dir” or “ls” I get:

227 Entering Passive Mode (192,168,XXXXXXXXXX)
150 Accepted data connection to port 50009
226 0 matches total

“pwd” shows that I am indeed in “/”

Any ideas?

[Renzo Mischianti]

Hi Monaco,
I tried It, and it seems to work. Can you explain the step you did?
Bye Renzo

[monaco87]

Hi, thanks for replying.

Setup:

#define DEFAULT_STORAGE_TYPE_ESP32 STORAGE_LITTLEFS
#include <SimpleFtpServer.h>
FtpServer ftpSrv;

void setup()
{
    Serial.begin(115200);
    if (!LittleFS.begin(FORMAT_LITTLEFS_IF_FAILED))
    {
        Serial.println("LittleFS Mount Failed");
    }
    else
    {
        Serial.println("LittleFS Mounted OK");
    }

    delay(3000);
}

Code to create test file and list FS contents:

void updateTestFile(String data)
{
    if (!LittleFS.exists("/ign_log.txt"))
    {
        File file = LittleFS.open("/ign_log.txt", FILE_WRITE);
        if (!file)
        {
            Serial.println("There was an error opening ign_log.txt for writing");
            return;
        }
        file.close();
    }

    File file = LittleFS.open("/ign_log.txt", FILE_APPEND);
    if (!file)
    {
        Serial.println("- failed to open file for appending");
        return;
    }
    if (file.print(data))
    {
        Serial.println("- data appended");
    }
    else
    {
        Serial.println("- append failed");
    }
    file.close();

    getFileList();
}

void getFileList()
{
    Serial.printf("Listing directory: %s\r\n", "/");

    File root = LittleFS.open("/");
    if (!root)
    {
        Serial.println("- failed to open directory");
        return;
    }
    if (!root.isDirectory())
    {
        Serial.println(" - not a directory");
        return;
    }

    File file = root.openNextFile();
    while (file)
    {
        if (file.isDirectory())
        {
            Serial.print("  DIR : ");
            Serial.println(file.name());
            // if (levels)
            // {
            //     listDir(SPIFFS, file.path(), levels - 1);
            // }
        }
        else
        {
            Serial.print("  FILE: ");
            Serial.print(file.name());
            Serial.print("\tSIZE: ");
            Serial.println(file.size());
        }
        file = root.openNextFile();
    }
}

Then the loop:

    ftpSrv.begin("abc","abc");
    while (true)
    {
      ftpSrv.handleFTP();
    }

getFileList() displays the test file and size on the serial console.

I then manually ftp to the device from a bash shell, connection and login are fine. Commands ‘dir’ and ‘ls’ give zero files.

Partition is default 4MB sith SPIFFS (12.MB APP, 1.5MB SPIFFS)

• This reply was modified 8 months ago by monaco87.
• This reply was modified 8 months ago by monaco87.
• This reply was modified 8 months ago by monaco87.

[Renzo Mischianti]

Hi monaco,
modify #define DEFAULT_STORAGE_TYPE_ESP32 STORAGE_LITTLEFS
directly in SimpleFTPServerKey.h it can’t manage from the external.
Bye Renzo

[monaco87]

Renzo,

Thank you very much, that fixed it – dumb mistake on my part.

Thanks for the great software and the great help !

[Author]

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