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Posted by petersprc on 02/01/07 02:36
You could use the -i option to use a different key file. You can
create a new key, then do something like:
scp -q -i /path/to/my-id file user@host:/path
Or setup sudo, which would be better.
You can get the current web user like so:
echo posix_getpwuid(posix_geteuid());
On Jan 31, 2:25 pm, "Tom" <bie...@gmail.com> wrote:
> I have a script which allows a user to upload a file. The script does
> some filename editing, mimetype checking, etc., and it's then supposed
> to send the file to a remote server, without any username/password
> prompt ( I have root access to both servers ).
>
> I'm trying to run an exec/passthru command using scp or rsync, but
> there's one fundamental question that I can't answer. When exec is
> called from the command line, e.g. `php some_script.php`, the user
> executing the php script will be whatever user is currently logged
> into the shell. Which user executes php when it's called from http?
> In order to use scp and rsync without being prompted for username/
> password on every command, you need to set the .ssh/authorized_keys on
> the remote server to accept your login, but without a username I can't
> do that...
>
> Here's the section that doesn't work:
>
> <?php
> $filename = "test.txt" ;
> $dest = "/home/user/htdocs/upload/" . $filename ;
> exec("scp $filename remoteu...@some.remove.server:$dest", $output) ;
> print_r($output) ;
> ?>
>
> Now when run from the shell, you can add your specific login to the
> authorized_keys to circumvent manually entering user/pass, but when
> called from http, the script hangs and fails since authorized_keys is
> not set for whatever user executes PHP.
>
> So which user executes php from http? And is there a better way to do
> this??
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