Re: FTP issues

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On Wed, February 28, 2007 8:21 am, Larry Bradley wrote:
> I've written a PHP program to "mirror" data on a local drive to a
> remote
> FTP server. It compares file mod times, and only uploads files that
> are
> newer.  Works like a charm. Except ---

Did you consider just using rsync?...

> To examine the remote directories, I use ftp_rawlist() to get a
> directory
> listing which I parse. However, the file modification time does not
> have a
> year, and does not show the seconds. I get around this by "assuming"
> the
> year is the current one, and then compare the file times of the local
> and
> remote files ignoring local file seconds. If they are different, I use
> ftp_mdtm() to get the real remote time, and then do my compare. This
> slows
> things down a bit, as I have to go to the FTP server one more time.

If the minutes are different, why would you bother to check the
seconds?...

> Any thoughts on how to get around this?

> Is there a way to get a better
> directory listing?

I've seen some FTP servers that response to 'ls -als' with about what
you'd expect from the shell.

How they do it, I dunno, but I like it.

> Second and more serious problem is that when I FTP the file to the
> server,
> the file mod time gets set to the current (file-creation) time. The
> same
> thing happens in a local-to-local file copy using copy(), but I can
> use
> touch() to update the mod time.

rsync would fix this.

You could also look at scp which allows you to specify that you want
to maintain file attributes.

> Any thoughts on how I might get the remote FTP server to do the
> equivalent
> of touch()?

Actually, I should think you'd want to convince the server to "know"
when the file was REALLY created/modifed based on the local file, not
force the local file to look different just to accomodate the FTP
server.

-- 
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?

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