Re: Re: SFTP problems

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On Jun 19, 2005, at 12:37 PM, M. Sokolewicz wrote:

Lowell Allen wrote:

I need to use SFTP to send text files and binary files from one server to another, but I'm unable to use fopen on the remote server, and if I send with ssh2_scp_send the files are truncated. I'm assuming the libssh2-PECL/ssh2 installation isn't the problem because I'm able to connect using ssh2_auth_password, create a directory on the remote server with ssh2_sftp_mkdir, and copy files with ssh2_sftp_send and ssh2_sftp_recv (even though ssh2_sftp_send truncates files).
When I try to use fopen, I get this error message:
Warning: fopen(): Unable to open ssh2.sftp://Resource id #10/whatever.com:22/home/whatever/public_html/flamingo/test.txt on remote host in /home/user/public_html/cms/sftp_test.php on line 79 Warning: fopen(ssh2.sftp://Resource id #10/whatever.com:22/home/whatever/public_html/flamingo/test.txt): failed to open stream: Resource temporarily unavailable in /home/user/public_html/cms/sftp_test.php on line 79
Here's line 79 of sftp_test.php:
$stream = fopen("ssh2.sftp://$sftp/whatever.com:22/home/whatever/public_html/ flamingo/".$filename, "wt") I've read "Secure Communications with PHP and SSH" in the February PHP Architect. That's what prompted me to try PECL/ssh2, but now I'm stuck. Anybody successfully using fopen with SFTP or anybody using ssh2_sftp_send without getting truncated files?

First of all, posting this once is enough. Second of all, I think the problem here is actually a lot easier than it would look at first glance :)

I noticed the following error:
Warning: fopen(ssh2.sftp://Resource id #10/[...]): [...]

Now, what you see here is that you suddenly have a "ssh2.sftp://Resource id #10". This is probably not the domain name you're trying to connect to, now is it? :) That string typically appears only when you cast a resource to a string (eg. a mysql-connection, a stream, or whatever). So, looking at line 79, I would guess that $sftp isn't a string which tells fopen where to find the file to open, but instead is a resource which should not be there at all.

Thanks for your reply. I apologize for the duplication. I posted until I saw it show up, and I've only seen it once -- probably my gmail account marking as spam, which I don't see because I retrieve as a POP account with Thunderbird. I unsubscribed and subscribed with a different email address and posted again.

Here's where $sftp is coming from:

$connection = ssh2_connect("copy-design.com", 22);
$sftp = ssh2_sftp($connection);

And from the examples I've seen, the correct syntax for opening a handle is what I use on line 79:

$stream = fopen("ssh2.sftp://$sftp/whatever.com:22/home/whatever/public_html/ flamingo/".$filename, "wt")

The info at <http://us4.php.net/manual/en/function.ssh2-sftp.php> says that ssh_sftp() "returns an SSH2 SFTP resource", which is what I figured "Resource id #10" is referring to. From the manual example for ssh_sftp:

$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');
$sftp = ssh2_sftp($connection);
$stream = fopen("ssh2.sftp://$sftp/path/to/file";, 'r');

Perhaps I'm being as inept with this code as I seem to be with my email, but if the domain is "whatever.com", and the file is located at "/home/whatever/public_html/flamingo/", and the file name is "test.txt", and I want to open the file (which doesn't exist yet) for writing, what should I use if not 'fopen("ssh2.sftp://$sftp/whatever.com:22/home/whatever/public_html/ flamingo/test.txt", "wt")'?

--
Lowell Allen

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