I'm developing a web page using Microsoft WebMatrix and everything was going smoothly and working.
The problem I have is related to ftp_connect() in php.
I made several tests using this same program in my computer, but when I tried through the web page to make a file transfer, the ftp_connet() function did not work.
I've all ready searched and can't find a solution to this error, because I can connect with a ftp client, and have access through a webpage and can connect directly from my computer, but the not from the web.
Here is the relevant code:
$conn_id = ftp_connect(FTPSERVER);
$login_result = ftp_login($conn_id, FTPUSER, FTPPASS);
if(ftp_put($conn_id,$path_file_ftp_gr,$filegr_path,FTP_BINARY)) {
if (ftp_put($conn_id,$path_file_ftp_pq,$filepq_path,FTP_BINARY)){
$query_result = mysql_query($query_add);
ftp_close($conn_id);
echo 'Sucesso<br>';
ftp_close($conn_id);
}
}
else {
echo 'falhou<br>';
}
You're not by chance passing an integer to the FTP port parameter are you? For me this doesn't work:
$ftp = ftp_connect('myserver.com',51);
But this does:
$ftp = ftp_connect('myserver.com','51');
Related
So i have created a scale set in Azure (2 windows server 2016 VMs). I want to have a PHP application running on them. I want to know if it is possible to use an FTP connection to remotely upload/edit my php files which are going to be on the VMs. If not, what are the others ways i can use to remotely edit/upload my php files?. This is my first time working with a scaleset. thanks
Yes it's possible to use FTP in php:
//open a connection
$conn = ftp_connect($host);
//login to server
ftp_login($conn, $user, $pass);
//upload file
if (ftp_put($conn, $remoteFile, $localFile, FTP_ASCII)) {
return "<p>successfully uploaded $localFile to $remoteFile</p>";
} else {
return "<p>There was a problem while uploading $remoteFile</p>";
}
See the manual for more FTP functions http://php.net/manual/en/book.ftp.php
I have a PC that is running some FTP via PHP that I know used to work 1-2 months ago, but now I return to it I find that the PC is no longer working. I know I have been using the PC but I cannot think of what might have changed.
The PHP is throwing out error messages reading
Unable to build data connection: Connection refused
...when I use the ftp_put() function.
The cut down code I am using is:
<?php
$trackErrors = ini_get('track_errors');
ini_set('track_errors', 1);
$server="***.***.***.***";
$port=21;
echo "<LI>Connecting to $server:$port<BR>";
$conn_id = ftp_connect($server,$port,9999999) or die("<BR>Unable to connect to ".$server.":$port server.");
if ( !$conn_id ) {
$errmsg = $php_errormsg;
echo "<BR><LI>ERR:$errmsg";
}
else {
$passive=false;
echo "<LI>Setting Passive Mode=$passive";
ftp_pasv($conn_id, $passive);
$user="*********";
$pass="*********";
echo "<LI>Connecting as $user/*****";
if (!ftp_login($conn_id, $user, $pass)) {
$msg = "Failed to login to $selected_server as $user; <BR>check logincredentials in the Settings";
echo "<BR><LI>$msg";
$errmsg = $php_errormsg;
echo "<LI>ERR:$errmsg";
return $msg;
}
ftp_set_option($conn_id, FTP_TIMEOUT_SEC, 10000);
if (!#ftp_put($conn_id, "test.txt", "C:......test.txt", FTP_BINARY)) {
echo "<BR><LI>ftp_put failed";
$errmsg = $php_errormsg;
echo "<LI>ERR:$errmsg";
}
echo "<HR>Done";
}
?>
the output when running this as a webpage is
Connecting to ***.***.***.***:21
Setting Passive Mode=
Connecting as *******/*****
ftp_put failed
ERR:ftp_put(): Unable to build data connection: Connection refused
Done
The result is that the ftp_put() gives the error message and leaves a zero (0) byte file with the right filename on the server.
The strange thing is is that
the same code/connection info works on another laptop ok
the same connection info works ok using FileZilla when pushing a file
the problem occurs on several servers (ie. it's not just one specific destination that has the problem)
Also, this doesn't seem to have anything to do with the passive mode (it fails with and without this enabled)
Does anyone have any suggestions?
Thanks
Abe
You are using the active FTP mode. In the active mode the server tries to connect to the client. In most network configurations, that's not possible as the client machine is usually behind a firewall.
That's why the server fails with:
Unable to build data connection: Connection refused
It's specifically ProFTPD error message for this situation.
See my article on the active and passive FTP connection modes for details.
The code can work on other machines, if they have firewall disabled or if they have rules that allow incoming traffic on unprivileged ports.
FileZilla works because it defaults to the passive mode (as most modern FTP clients do).
You have claimed to try the passive mode too, yet to get the same error message.
That's because you are using the ftp_pasv call incorrectly.
You have to move the ftp_pasv call after the ftp_login.
$user = "*********";
$pass = "*********";
echo "<LI>Connecting as $user/*****";
if (!ftp_login($conn_id, $user, $pass)) {
// ...
}
$passive = true;
echo "<LI>Setting Passive Mode=$passive";
ftp_pasv($conn_id, $passive);
The documentation clearly suggests it:
Please note that ftp_pasv() can only be called after a successful login or otherwise it will fail.
For a similar issue (just with Pure-FTPd), see PHP upload via FTP - ftp_put() I won't open a connection to x.x.x.x (only to y.y.y.y).
Hello i am running multiple servers on a local network. One of these servers is hosting my web server IIS. I am trying to acess a file located on another server via php. I checked on the server if by using windows explorer if i could reach the file and i could but php returns false.
On my computer which is also connected to the same network running wamp i was able to read the file on the server.
Does anyone have any ideas why i am having this issue ?
My php code is the following :
$dbName = "\\\\server\\db_folder\\db.accdb";
if (!file_exists($dbName)) {
die("Could not find database file.");
}
else {
// i read my access db which works on wamp
}
use forward slash..
$dbName = "/server/db_folder/db.accdb";
Having spent hours on this, I am out of luck. This script worked perfectly until yesterday. The script generates XML and dumps it as a file (5kb) to a remote FTP server. The script has not changed, nor has our host changed anything. The FTP server company has changed something (they said IP change yesterday) (but claims nothing apart from this). This IP resulted in a different ftp_server which has worked fine.
When I attempt to run the script, I get the following error regardless of whether "ftp_pasv($conn_id, true);" is there or not / disabled:
Warning: ftp_fput() [function.ftp-fput]: Opening ASCII mode data connection in ...
Then it gives the line which contains "FTP_ASCII" below.
When I have the ft_pasv section there only (as per original script), an additional error of the following still appears with the following:
Warning: ftp_fput() [function.ftp-fput]: data_accept: SSL/TLS handshake failed in ...
This is for the same line as the above error.
They were originally on a self-signed SSL. Now, due to my issue, they are now on a 'correct' SSL issued by a well known company. No errors display on Filezilla upon connecting.
Importantly, I can upload via Filezilla with no issues, with or without passive mode
Code above the below code in the script is correct for generating the file as it appears on the script page, once loaded. It just won't dump the file on the server. Here is the connecting to the server bit:
//Connect to the FTP server
$ftp_server = 'import.ftpserverdomain.com';
$ftp_user_name = 'CORRECT-USERNAME';
$ftp_user_pass = 'CORRECT-PASSWORD';
// set up basic ssl connection
$conn_id = ftp_ssl_connect($ftp_server) or die("CONNECTION ERROR");
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass) or die("LOGIN ERROR");
$directory = ftp_pwd($conn_id); // /
ftp_pasv($conn_id, true);
$fp = fopen($filename, 'w');
fputs($fp,$file_contents);
fclose($fp);
$fp = fopen($filename, 'r');
$path_with_file = $directory.$filename;
if (ftp_fput($conn_id, $path_with_file, $fp, FTP_ASCII)) {
echo "Successfully Uploaded $File\n";
} else {
echo "There was a problem while uploading $File\n";
}
fclose($fp);
unlink($filename);
ftp_close($conn_id);
Any help is much appreciated. Sorry if I lacked any information. I'll be happy to provide any.
It sounds to me like PHP can't find your CA Certs, if you are running this on a linux box, this is something I have encountered before. Some searching should help but basically PHP's OpenSSL integration needs pointing at your cacerts directory so it can use these to validate the SSL connection it is attempting to make.
I fixed this issue. Hopefully this helps someone. The issue turned out to be server (HostGator). They do not allow FTP over TLS on a shared account.
Despite this working for a year, switching hosts resolved the issue.
I'm trying to list some files from an external FTP server using php ftp functions on a Windows shared hosting, but I'm having several problems.
I firstly tried with a couple of web applications like ajaxplorer and net2ftp, but I got frustrated and I decided to make a very basic script for testing..
<?php
$ftp_server = "alinuxftpserver";
$ftp_user = "user";
$ftp_pass = "pass";
// set up a connection or die
$conn_id = ftp_connect($ftp_server) or die("Couldn't connect to $ftp_server");
// change temp folder (windows)
putenv("TMP=D://inetpub//webs//domain//net2ftp//tmp");
echo getenv('TMP');
// try to login
if (#ftp_login($conn_id, $ftp_user, $ftp_pass))
{
echo "Connected as $ftp_user#$ftp_server\n";
}
else
{
echo "Couldn't connect as $ftp_user#$ftp_server\n";
}
if(ftp_pasv( $conn_id, true ))
echo "Passive mode, it worked<br/>";
else
echo "Passive mode, it didn't work<br/>";
$contents = ftp_rawlist($conn_id, ".");
var_dump($contents);
ftp_close($conn_id);
die;
?>
On my localhost (linux) it returns an array, while on the windows hosting it returns:
Warning: ftp_rawlist() [function.ftp-rawlist]: php_connect_nonb() failed: No such file or directory (2) in D:\inetpub\webs\domain\ftp.php on line 26
bool(false)
Can't understand.. the directory should be "/" on the external ftp server and of course there are some files & folders (2 folders and 1 file).. In fact on my MAMP installation it works well.
Hosting guys told me that the server configuration is ok.
use ftp_pasv($conn_id, true); some ftp connections will work in passive mode only
I'm not 100% sure, but I guess, you should use $contents = ftp_rawlist($conn_id, "/");
instead of $contents = ftp_rawlist($conn_id, ".");
Check your FTP server logs. In my case, the pasv_address was set to a wrong IP address.
Better late than never... I had the same problem. With a Linux server everything worked great, but with Windows Server (many versions) we had many problems, including with ftp_nlist() returning an empty array. This worked for us, but I don't know why!
ftp_nlist($handler, '*');