fixes #818, add remote_sync.pl script from piwigo.org forum (script written back in 2009)

tools/remote_sync.pl

@@ -0,0 +1,59 @@
+#!/usr/bin/perl
+
+# perl remote_sync.pl --base_url=http://localhost/piwigo/dev/branches/2.0 --username=plg --password=plg
+
+use strict;
+use warnings;
+
+use LWP::UserAgent;
+use Getopt::Long;
+
+my %opt = ();
+GetOptions(
+    \%opt,
+    qw/
+          base_url=s
+          username=s
+          password=s
+      /
+);
+
+our $ua = LWP::UserAgent->new;
+$ua->agent('Mozilla/remote_sync.pl');
+$ua->cookie_jar({});
+
+$ua->default_headers->authorization_basic(
+    $opt{username},
+    $opt{password}
+);
+
+my $form = {
+    method => 'pwg.session.login',
+    username => $opt{username},
+    password => $opt{password},
+};
+
+my $result = $ua->post(
+    $opt{base_url}.'/ws.php?format=json',
+    $form
+);
+
+# perform the synchronization
+$form = {
+    'sync'             => 'files',
+    'display_info'     => 1,
+    'add_to_caddie'    => 1,
+    'privacy_level'    => 0,
+    'sync_meta'        => 1, # remove this parameter, turning to 0 is not enough
+    'simulate'         => 0,
+    'subcats-included' => 1,
+    'submit'           => 1,
+};
+
+$result = $ua->post(
+    $opt{base_url}.'/admin.php?page=site_update&site=1',
+    $form
+);
+
+use Data::Dumper;
+print Dumper($result);