Convert AT+CFTPSLOGIN to correct format

droidblast · October 26, 2022, 6:17am

Trying to taken this command and revise into my sketch

AT+CFTPSLOGIN=”112.74.93.163”,21,”tmf”,”tmf123”,0

Tried

modem.sendAT("+CFTPSLOGIN=",(ftp_server, ftp_port, ftp_user, ftp_pass,0));

ftp_server = FTP-domain
ftp_port = 21
ftp_user = username
ftp_pass = password

Compliles but doesn't login

+CFTPSSTART: 0

OK

ERROR

My function being called

void FTP4G_upload() { 
  String res; 
  pDBG("Uploading via FTP: ");
  modem.sendAT("+CFTPSSTART"); //used to start FTP(S)
   modem.waitResponse(1000L, res);
   pDBG("FTP Started...");
  
  modem.sendAT("+CFTPSLOGIN=",(ftp_server, ftp_port, ftp_user, ftp_pass,0));
  //AT+CFTPSLOGIN=”112.74.93.163”,21,”tmf”,”tmf123”,0
   modem.waitResponse(1000L, res);
   pDBG("FTP Logging in...");
  //modem.sendAT("+CFTPSCWD=", ("/dir1"));
  // modem.waitResponse(1000L, res);
  //modem.sendAT("+CFTPTYPE", ("I"));
  // pDBG("Changed type to binary ");
  // modem.waitResponse(1000L, res);
  //modem.sendAT("+CFTPSPUTFILE", ("/Camera/test.txt"));
  // modem.waitResponse(1000L, res);
   Serial.println("Done... Waiting next transfer...");
   delay(100);
}

red_car · October 26, 2022, 7:05am

char ftp_server[] = "112.74.93.163";
uint8_t ftp_port = 21;
char ftp_user[] = "tmf";
char ftp_pass[] = "tmf123";

char str[40];

void setup()
{
  sprintf(str, "AT+CFTPSLOGIN=\"%s\",%i,\"%s\",\"%s\",0", ftp_server, ftp_port, ftp_user, ftp_pass);

  Serial.begin(115200);
  Serial.println(str);
}

void loop()
{}

Output...

20:04:16.827 -> AT+CFTPSLOGIN="112.74.93.163",21,"tmf","tmf123",0

Then just...

modem.sendAT(str);

J-M-L · October 26, 2022, 8:10am

not sure which library you use, but it's likely that the extra parenthesis are playing tricks on you

if modem.sendAT() supports a variable number of parameters ended by a null pointer then removing the parenthesis should solve it, otherwise it's like you had called

  modem.sendAT("+CFTPSLOGIN=",0);

which obviously would not do what you want

➜ I would try with:

  modem.sendAT("+CFTPSLOGIN=",ftp_server, ftp_port, ftp_user, ftp_pass,0);

PS: you'll need to make sure the cString contain the quotes if the output needs to look like this
AT+CFTPSLOGIN=”112.74.93.163”,21,”tmf”,”tmf123”,0

if modem.sendAT() does not supports a variable number of parameters then you need to build the command or send it chunk by chunk (as long as sendAT() does not add a line feed)

EDIT: now thinking about it, seems you want the 0 as well in the command, so likely that sendAT() is not a variadic function.... so likely disregard the first part of the comment

droidblast · October 26, 2022, 9:06am

Thanks using the TinyGSM library but this doesnt support FTP so having to use the native built in commands.

AT+CFTPSLOGIN=”<host>”,<port>,”<username>”,”<password>”,server_type>]

Documentation shows

AT+CFTPSLOGIN=”112.74.93.163”,21,”tmf”,”tmf123”,0

OK

+CFTPSLOGIN: 0

red_car · October 26, 2022, 9:37am

Did you read/understand post #2?

droidblast · October 26, 2022, 10:48pm

Thanks

yes result below but I cant login (FTP over 4G)

AT+CFTPSLOGIN="112.74.93.163",21,"tmf","tmf123",0

SIm 7600 shows the example of

AT+CFTPSLOGIN=?

Which produces this out put

+CFTPSLOGIN: "ADDRESS",(1-65535)[,"USERNAME","PASSWORD"[,(0-3)]]

I dont get a script error just after

modem.sendAT("+CFTPSSTART");

OK

But the

AT+CFTPSLOGIN="112.74.93.163",21,"tmf","tmf123",0

ERROR

droidblast · October 26, 2022, 10:54pm

Example code is

+CFTPSLOGIN: "ADDRESS",(1-65535)[,"USERNAME","PASSWORD"[,(0-3)]]

trying

modem.sendAT("+CFTPSLOGIN=",ftp_server, ftp_port, ftp_user, ftp_pass,0);

But its not logging in to FTP over 4G. I can ssh to the FTP server so I know those details are correct still think I dont have the CFTPSLOGIN correct.

Uploading via FTP: 

+CFTPSSTART: 0

OK

+CFTPSSTART: 0

OK

ERROR

The example of FTP given is this

//Example of FTP upload/download
AT+CFTPSSTART
OK
+CFTPSSTART: 0
//Start FTP service
AT+CFTPSLOGIN=”255.255.255.255”,21,”user
name”,”password”,0
OK
+CFTPSLOGIN: 0
//Login to a FTP server
AT+CFTPSLIST=”/”
OK
+CFTPSLIST: DATA,175
-rw-r--r-- 1 ftp ftp 121 Mar 11 16:24
124.txt
drwxr-xr-x 1 ftp ftp 0 Jan 13
2020 TEST113
drwxr-xr-x 1 ftp ftp 0 Jan 19
2020 TEST1155
+CFTPSLIST: 0
//List all ms of directory "/"
AT+CFTPSPWD
OK
+CFTPSPWD: "/"
//Get current directory of FTP server
AT+CFTPSGETFILE=”124.txt”
OK
+CFTPSGETFILE: 0
//Download a file from FTP server to module.
AT+CFTPSPUTFILE=”124.TXT”
OK
+CFTPSPUTFILE: 0
//Upload a file to FTP server from module
AT+CFTPSLOGOUT
OK
+CFTPSLOGOUT: 0
//Logout FTP server
AT+CFTPSSTOP
OK

So at this stage I am stuck on the code to login to remote FTP server.

red_car · October 26, 2022, 10:59pm

Are your strings contained within quotes(")? Why don't you use the code in post #2?

Can you post ALL your code.

droidblast · October 27, 2022, 2:03am

Currently using the code in your post #2

My code is to large to post been working this project for too long now.

// FTP Server credentials
char ftp_server[] = ""; 
char ftp_user[]   = "";
char ftp_pass[]   = "";

uint8_t ftp_port = 21; 
char str[40];

void setup()
{

  sprintf(str, "AT+CFTPSLOGIN:\"%s\",%i,\"%s\",\"%s\",0", ftp_server, ftp_port, ftp_user, ftp_pass);

 }

My function

void FTP4G_upload() { // Tiny GSM doesnt support 4G FTP
  String res; 
  Serial.println("Uploading via FTP: ");
  modem.sendAT("+CFTPSSTART"); //used to start FTP(S)
  modem.waitResponse(1000L, res);
  pDBG(res);
  //modem.sendAT("+CFTPSLOGIN=",ftp_server, ftp_port, ftp_user, ftp_pass,0);
  //modem.sendAT("+CFTPSLOGIN=?");
  modem.sendAT(str); //added 27/10/2022
  modem.waitResponse(1000L, res);
  pDBG(res);
  Serial.println(str); //added 27/10/2022
  // modem.waitResponse(1000L, res);
  // pDBGln(res);
  // Serial.print(ftp_server);
  // Serial.print(",");
  // Serial.print(ftp_port);
  // Serial.print(",");
  // Serial.print(ftp_user);
  // Serial.print(",");
  // Serial.println(ftp_pass);
  //modem.sendAT("+CFTPSCWD=", ("/somewhere.com"));
  // modem.waitResponse(3000L, res);
  // pDBG(res);
  //modem.sendAT("+CFTPTYPE", ("I"));
  // modem.waitResponse(1000L, res);
  // pDBG(res);
  //modem.sendAT("+CFTPSPUTFILE", ("/Camera/test.txt"));
  // modem.waitResponse(2000L, res);
  // pDBG(res);
  // pDBG("Uploaded image");
  // pDBG(res);
   Serial.println("Done... Waiting next transfer...");
   delay(100);
}

Response

FTP Upload
Uploading via FTP: 

+CFTPSSTART: 0

OK

+CFTPSSTART: 0

OK

ERROR
AT+CFTPSLOGIN:"112.74.93.16",21,"tmf","tmf123",0
Done... Waiting next transfer...

red_car · October 27, 2022, 2:09am

AT+CFTPSLOGIN:

":" should be "=" ?

droidblast · October 27, 2022, 2:18am

changed to

void setup()
{

  sprintf(str, "AT+CFTPSLOGIN=\"%s\",%i,\"%s\",\"%s\",0", ftp_server, ftp_port, ftp_user, ftp_pass);

 }

Output

FTP Upload
Uploading via FTP: 

+CFTPSSTART: 0

OK

+CFTPSSTART: 0

OK

ERROR
AT+CFTPSLOGIN:"112.74.93.16",21,"tmf","tmf123",0
Done... Waiting next transfer...

red_car · October 27, 2022, 2:20am

Still seeing the ":" in the output ?

droidblast · October 27, 2022, 2:28am

AT+CFTPSSTART starts the FTP service

  Serial.println("Uploading via FTP: ");
  modem.sendAT("+CFTPSSTART"); //used to start FTP(S)
  modem.waitResponse(1000L, res);
  pDBG(res);

Output is

OK

Serial.println(str); is with ' : ' colon

AT+CFTPSLOGIN:"112.74.93.16",21,"tmf","tmf123",0

  modem.waitResponse(1000L, res);
  pDBG(res);

Output is

ERROR

red_car · October 27, 2022, 2:32am

My point is that the AT+CFTPSLOGIN command should have "=" in it...

droidblast · October 27, 2022, 2:36am

Sorry it does

sprintf(str, "AT+CFTPSLOGIN=\"%s\",%i,\"%s\",\"%s\",0", ftp_server, ftp_port, ftp_user, ftp_pass);

my comment

Serial.println(str); is with ' : ' colon

Was the out from the serial print shows

AT+CFTPSLOGIN="....

But I get the ERROR message rather than a OK so cant tell

red_car · October 27, 2022, 2:38am

If I pass that command to my SIM7600... I get the following...

15:38:13.714 -> AT+CFTPSSTART

15:38:13.714 -> OK
15:38:13.714 -> 
15:38:13.714 -> +CFTPSSTART: 0
15:38:18.768 -> AT+CFTPSLOGIN="112.74.93.16",21,"tmf","tmf123",0

15:38:18.803 -> OK
15:38:22.399 -> 
15:38:22.399 -> +CFTPSLOGIN: 10

I think 10 is "network error". Are the credentials valid?

droidblast · October 27, 2022, 3:01am

the IP user and password are a example not real.

From a cmd line I can FTP to my server and login and upload a file

10 Network error in my case I return ERROR.

https://www.waveshare.net/w/upload/a/af/SIM7500_SIM7600_Series_AT_Command_Manual_V3.00.pdf

red_car · October 27, 2022, 3:06am

It does take a few seconds to return the 10... see the timestamps above. 4 seconds after the OK response. I use a simple stub program to send commands to the SIM7600.

Maybe you could try it.

#include <SoftwareSerial.h>

#define BAUD 38400

SoftwareSerial softSerial (8, 12);  // Rx, Tx as required.

void setup()
{
  Serial.begin(BAUD);
  softSerial.begin(BAUD);

  Serial.print("Ready @ ");
  Serial.print(BAUD);
  Serial.println(" baud");
}


void loop()
{
    while (Serial.available() > 0)
     softSerial.write(Serial.read());
  
    while (softSerial.available() > 0)
     Serial.write(softSerial.read());
}

ZX80 · October 27, 2022, 3:30am

Serial.print("AT+CFTPSLOGIN=\""); //Logs into FTPS server
 Serial.print(server);
 Serial.print("\",");
 Serial.print(port);
 Serial.print(",\"");
 Serial.print(user_name);
 Serial.print("\",\"");
 Serial.print(password);
 Serial.println("\"");
 Serial.flush();

https://www.generationrobots.com/media/3G-GPRS-GPS-Arduino-Shield-With-Audio-Video-Kit.pdf
Maybe interesting (I know nothing about that subject...)

droidblast · October 29, 2022, 8:19pm

Thanks added additional, which shows the the CFTPSLOGIN format wasn't correct. For some reason I get a GURU mediation error with your code in post 2 but will work this out once I have the formatting correct.
Wasnt getting the commas in the serial output

#define DUMP_AT_COMMANDS

Followed ZX80's link which shows the code and below is what I have figured out below.

modem.sendAT("+CFTPSLOGIN=\"", ftp_server, ("\","), ftp_port,(",\""), ftp_user,("\",\""), ftp_pass,("\","),0);

Example in the documentation

AT+CFTPSLOGIN=”112.74.93.163”,21,”tmf”,”tmf123”,0
OK
+CFTPSLOGIN: 0

So now its error free and looks correct but I dont get ...

+CFTPSLOGIN: 0

Noting that yours took up to 4s...

Output

09:43:23.256 -> FTP Upload
09:43:23.256 -> Uploading via FTP: 
09:43:23.256 -> 
09:43:23.256 -> +CFTPSSTART: 0
09:43:23.256 -> 
09:43:23.256 -> OK
09:43:23.301 -> 
09:43:23.301 -> +CFTPSSTART: 0
09:43:23.301 -> 
09:43:23.301 -> OK
09:43:23.301 -> 
09:43:23.301 -> OK
09:43:23.301 -> Done... Waiting next transfer...

Extra debug

09:48:44.770 -> FTP Upload
09:48:44.770 -> Uploading via FTP: 
09:48:44.770 -> AT+CFTPSSTART
09:48:44.770 -> 
09:48:44.770 -> OK
09:48:44.770 -> 
09:48:44.770 -> OK
09:48:44.770 -> AT+CFTPSLOGIN="112.74.93.163",21,"tmf","tmf123",0
09:48:44.817 -> 
09:48:44.817 -> OK
09:48:44.817 -> 
09:48:44.817 -> OK
09:48:44.817 -> 
09:48:44.817 -> OK
09:48:50.808 -> Done... Waiting next transfer...

Code

void FTP4G_upload() { // Tiny GSM doesnt suppory 4G FTP
  String res; 
  Serial.println("Uploading via FTP: ");
  modem.sendAT("+CFTPSSTART"); //used to start FTP
  modem.waitResponse(1000L, res);
  pDBG(res);
  modem.sendAT("+CFTPSLOGIN=\"", ftp_server, ("\","), ftp_port,(",\""), ftp_user,("\",\""), ftp_pass,("\","),0);
  modem.waitResponse(1000L, res);
  pDBG(res);
  delay(5000);
  modem.waitResponse(1000L, res);
  pDBG(res);
   Serial.println("Done... Waiting next transfer...");
   delay(100);
}

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