553 lines
13 KiB
Plaintext
553 lines
13 KiB
Plaintext
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#!/usr/bin/perl -wT
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#----------------------------------------------------------------------
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# heading : Your Settings
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# description : Data Backup
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# longdesc : backup user data
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# navigation : 100 200
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#
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# Copyright (c) 2001 Mitel Networks Corporation
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# 2002-5 Stephen Noble <support@dungog.net>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#----------------------------------------------------------------------
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package esmith;
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use strict;
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use CGI ':all';
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use CGI::Carp qw(fatalsToBrowser);
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use esmith::cgi;
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use esmith::config;
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use esmith::util;
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use esmith::db;
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use esmith::lockfile;
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sub showInitial ($$);
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sub performAndShowResult ($);
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sub desktopBackup ();
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sub desktopRestore ();
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sub desktopVerify ();
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sub performDesktopRestore ($);
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sub performDesktopVerify ($);
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sub performDiskUsage ($);
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BEGIN
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{
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# Clear PATH and related environment variables so that calls to
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# external programs do not cause results to be tainted. See
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# "perlsec" manual page for details.
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$ENV {'PATH'} = '';
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$ENV {'SHELL'} = '/bin/bash';
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delete $ENV {'ENV'};
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}
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esmith::util::setRealToEffective ();
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my %conf;
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tie %conf, 'esmith::config';
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my %accounts;
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tie %accounts, 'esmith::config', '/home/e-smith/db/accounts';
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my $acctName = $ENV{'REMOTE_USER'};
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if ($acctName =~ /^([a-z][\-\_\.a-z0-9]*)$/)
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{
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$acctName = $1;
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}
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my @directories = ("/home/e-smith/files/users/$acctName/");
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# Unbuffer standard output so that files and directories are listed as
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# they are restored
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$| = 1;
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# Store away current gid of 'www' group.
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my $www_gid = getgrnam("www");
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#------------------------------------------------------------
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# examine state parameter and display the appropriate form
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#------------------------------------------------------------
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my $q = new CGI;
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if (! grep (/^state$/, $q->param))
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{
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showInitial ($q, '');
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}
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elsif ($q->param ('state') eq "perform")
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{
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performAndShowResult ($q);
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}
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elsif ($q->param ('state') eq "desktop-restore")
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{
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performDesktopRestore($q);
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}
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elsif ($q->param ('state') eq "desktop-verify")
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{
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performDesktopVerify($q);
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}
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elsif ($q->param ('state') eq "diskUsage")
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{
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performDiskUsage ($q);
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}
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else
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{
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esmith::cgi::genStateError ($q, \%conf);
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}
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exit (0);
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#------------------------------------------------------------
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# subroutine to display initial form
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#------------------------------------------------------------
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sub showInitial ($$)
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{
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my ($q, $msg) = @_;
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if ($msg eq '')
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{
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esmith::cgi::genHeaderNonCacheable ($q, \%conf,
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'Backup or restore user data');
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}
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else
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{
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esmith::cgi::genHeaderNonCacheable
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($q, \%conf, 'Operation status report');
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print $q->p ($msg);
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print $q->hr;
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}
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print $q->p (
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"This page allows you to create a copy of <b>your "
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. "own</b> user data files, from your home directory "
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. "and downloads it to your local desktop via your web "
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. "browser. The Verify desktop backup file option can be used to\n"
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. "view a list of files in a desktop backup file.\n");
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print $q->p ($q->a ({href => $q->url (-absolute => 1) . "?state=diskUsage"},
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'Click here'),
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'to check/refresh the disk usage for this user shown below, it may take
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a minute the first time but should be faster afterwards.');
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#show usage
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if ( -e "/tmp/du-$acctName" )
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{
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my $du = '0';
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open (INF,"/tmp/du-$acctName")
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or die ("can't open du to read: $1. ");
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while (<INF>)
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{
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($du, undef) = split(/\t/, $_);
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}
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close INF;
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print $q->p ("When last checked with the link above your configuration "
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. "and data files totaled <b>$du</b>. Your backup will be compressed to approx. "
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. "half that size.\n");
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}
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my %labels = (
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"desktop-backup" => "Backup to desktop",
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"desktop-restore" => "Restore from desktop",
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"desktop-verify" => "Verify desktop backup file",
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);
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my @labels = (
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'desktop-backup',
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'desktop-restore',
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'desktop-verify',
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);
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my $default_action = 'desktop-backup';
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print $q->startform (-method => 'POST',
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-action => $q->url (-absolute => 1));
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print $q->table ({border => 0, cellspacing => 0, cellpadding => 4});
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print $q->Tr (esmith::cgi::genWidgetRow($q,"Select an action",
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$q->popup_menu (-name => 'function',
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-values => [ @labels ],
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-default => $default_action,
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-labels => \%labels)));
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print "</table>\n";
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print '<p>';
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print $q->Tr (
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esmith::cgi::genButtonRow(
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$q,
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$q->submit (-name => 'action', -value => 'Perform')
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)
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);
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print $q->hidden (
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-name => 'state',
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-override => 1,
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-default => 'perform'
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);
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print $q->endform;
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# print $q->p ($q->hr, $q->font ({size => "-1"}, "www.dungog.net/sme"));
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esmith::cgi::genFooter($q);
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print '</FONT>';
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print '</DIV>';
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print $q->end_html;
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}
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sub performAndShowResult ($)
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{
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my ($q) = @_;
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my $function = $q->param ('function');
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if ($function eq 'refresh')
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{
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showInitial ($q, '');
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}
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elsif ($function eq 'desktop-backup')
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{
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desktopBackup();
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}
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elsif ($function eq 'desktop-restore')
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{
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desktopRestore();
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}
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elsif ($function eq 'desktop-verify')
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{
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desktopVerify();
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}
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else
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{
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# Unknown function - refresh the screen anyway
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showInitial ($q, 'unknown');
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}
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return;
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esmith::cgi::genHeaderNonCacheable ($q, \%conf,
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'X Backup or restore server data');
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print $q->p ( $function );
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esmith::cgi::genFooter ($q);
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}
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sub desktopBackup ()
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{
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my $directories = $q->param ('directories');
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# Generate a header that will trigger a download and send data as
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# an octet stream.
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print "Expires: 0\n";
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print "Content-type: application/octet-stream\n";
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print "Content-disposition: inline; filename=$acctName.tgz\n";
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print "\n";
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open(RD,
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"/bin/tar --directory / --create @directories --file=-"
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. " | /usr/bin/gzip |");
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while (<RD>)
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{
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print;
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}
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close RD;
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}
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sub desktopRestore ()
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{
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esmith::cgi::genHeaderNonCacheable ($q, \%conf,
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'Restore server configuration');
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print $q->p (
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"This process will upload a SME Server "
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. " backup file from your "
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. "local desktop to your server and "
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. "restore the configuration and user data files.\n");
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print $q->p (
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"Be very sure you are uploading the correct file, "
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. "files with the same name will be overwritten.\n");
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print $q->start_multipart_form(
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-method => 'POST',
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-action => $q->url (-absolute => 1));
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print $q->table (
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{border => 0, cellspacing => 0, cellpadding => 4},
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esmith::cgi::genWidgetRow(
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$q,
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"Backup file to restore from",
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$q->filefield(
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-name => 'backupFile',
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-default => "$acctName.tgz",
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-size => 32)),
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esmith::cgi::genButtonRow(
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$q,
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$q->submit(
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-name => 'action',
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-value => 'Restore')));
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print $q->hidden(
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-name => 'state',
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-override => 1,
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-default => 'desktop-restore');
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print $q->endform;
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esmith::cgi::genFooter ($q);
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}
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sub desktopVerify ()
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{
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esmith::cgi::genHeaderNonCacheable ($q, \%conf,
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'Verify desktop backup file');
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print $q->p (
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"This option will display the names of all files\n"
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. "in a previously created desktop backup file. You\n"
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. "can use this option to verify the contents of the\n"
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. "backup file.\n"
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);
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print $q->start_multipart_form(
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-method => 'POST',
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-action => $q->url (-absolute => 1)
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);
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print $q->table (
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{border => 0, cellspacing => 0, cellpadding => 4},
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esmith::cgi::genWidgetRow(
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$q,
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"Select backup file",
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$q->filefield(
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-name => 'backupFile',
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-default => "$acctName.tgz",
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-size => 32
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)
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),
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esmith::cgi::genButtonRow(
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$q,
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$q->submit(
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-name => 'action',
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-value => 'Verify'
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)
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)
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);
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print $q->hidden(
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-name => 'state',
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-override => 1,
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-default => 'desktop-verify'
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);
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print $q->endform;
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esmith::cgi::genFooter ($q);
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}
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sub performDesktopRestore ($)
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{
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my ($q) = @_;
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# Need to validate this here: $q->param ('backupFile');
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my $lock_file = "/var/lock/subsys/e-smith-restore";
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my $file_handle = &esmith::lockfile::LockFileOrReturn($lock_file);
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unless ($file_handle)
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{
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esmith::cgi::genHeaderNonCacheable(
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$q,
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\%conf,
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"Unable to proceed with restore of server configuration"
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);
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print $q->p (
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$q->b (
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"Another restore is in progress.",
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"Please try again later."
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)
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);
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esmith::cgi::genFooter ($q);
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return;
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}
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# no need to reboot after restoring users data
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#db_set_prop(\%restore, 'restore', 'state', 'running');
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#db_set_prop(\%restore, 'restore', 'start', time);
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#db_set_prop(\%conf, 'bootstrap-console', 'Run', 'yes');
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if (open(RD, "-|"))
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{
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#----------------------------------------
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# restore system from uploaded backup file
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#----------------------------------------
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|
|
esmith::cgi::genHeaderNonCacheable ($q, \%conf, "Restore in progress");
|
||
|
|
|
||
|
|
print $q->p ("The following files and directories have been restored:");
|
||
|
|
|
||
|
|
print "<UL>";
|
||
|
|
my $complete = 0;
|
||
|
|
while (<RD>)
|
||
|
|
{
|
||
|
|
print "<li>$_</li>\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
print "</UL>";
|
||
|
|
my $message;
|
||
|
|
if (!close RD)
|
||
|
|
{
|
||
|
|
$message = "Restore failed! " .
|
||
|
|
"There was an error in reading the backup file";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$message = "Restore complete";
|
||
|
|
}
|
||
|
|
|
||
|
|
#db_set_prop(\%restore, 'restore', 'state', 'complete');
|
||
|
|
#db_set_prop(\%restore, 'restore', 'finish', time);
|
||
|
|
|
||
|
|
&esmith::lockfile::UnlockFile($file_handle);
|
||
|
|
|
||
|
|
print $q->p ($q->b ($message));
|
||
|
|
|
||
|
|
esmith::cgi::genFooter ($q);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
select(STDOUT);
|
||
|
|
$| = 1;
|
||
|
|
|
||
|
|
my $backupFile = $q->param ('backupFile');
|
||
|
|
|
||
|
|
my $decodeCommand = ( $backupFile =~ /\.bak$/ ) ?
|
||
|
|
"|/usr/bin/uudecode -o /dev/stdout" :
|
||
|
|
"|/usr/bin/gzip -d";
|
||
|
|
|
||
|
|
open(WR,
|
||
|
|
$decodeCommand
|
||
|
|
. " | /bin/tar --directory / --extract --verbose --file=-"
|
||
|
|
) || die ("Could not execute backup pipeline: $!\n");
|
||
|
|
|
||
|
|
while (<$backupFile>)
|
||
|
|
{
|
||
|
|
print WR;
|
||
|
|
}
|
||
|
|
|
||
|
|
close WR || die("Could not decode backup file: $!\n");
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub performDesktopVerify ($)
|
||
|
|
{
|
||
|
|
my ($q) = @_;
|
||
|
|
|
||
|
|
if (open(RD, "-|"))
|
||
|
|
{
|
||
|
|
esmith::cgi::genHeaderNonCacheable ($q,
|
||
|
|
\%conf, "Verify desktop backup file");
|
||
|
|
|
||
|
|
print $q->p
|
||
|
|
("The following files are contained in the backup file:");
|
||
|
|
|
||
|
|
print "<UL>";
|
||
|
|
|
||
|
|
my $complete = 0;
|
||
|
|
while (<RD>)
|
||
|
|
{
|
||
|
|
#$complete++ if /etc\/smbpasswd/;
|
||
|
|
print "<li>$_</li>\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
print "</UL>";
|
||
|
|
my $status = close RD ?
|
||
|
|
($complete ?
|
||
|
|
"Verify complete" :
|
||
|
|
"End of list")
|
||
|
|
: "There was an error in reading the backup file";
|
||
|
|
print $q->p ($q->b ($status));
|
||
|
|
|
||
|
|
esmith::cgi::genFooter ($q);
|
||
|
|
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
select(STDOUT);
|
||
|
|
$| = 1;
|
||
|
|
|
||
|
|
my $backupFile = $q->param ('backupFile');
|
||
|
|
|
||
|
|
my $decodeCommand = ( $backupFile =~ /\.bak$/ ) ?
|
||
|
|
"|/usr/bin/uudecode -o /dev/stdout" :
|
||
|
|
"|/usr/bin/gzip -d";
|
||
|
|
|
||
|
|
open(WR,
|
||
|
|
$decodeCommand
|
||
|
|
. " | /bin/tar --directory / --list --file=-"
|
||
|
|
) || die ("Could not decode backup file: $!\n");
|
||
|
|
|
||
|
|
while (<$backupFile>)
|
||
|
|
{
|
||
|
|
print WR;
|
||
|
|
}
|
||
|
|
|
||
|
|
close WR;
|
||
|
|
exit 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub performDiskUsage ($)
|
||
|
|
{
|
||
|
|
my ($q) = @_;
|
||
|
|
my $acctName = $ENV{'REMOTE_USER'};
|
||
|
|
|
||
|
|
if ($acctName =~ /^([a-z][\-a-z0-9]*)$/)
|
||
|
|
{
|
||
|
|
$acctName = $1;
|
||
|
|
}
|
||
|
|
|
||
|
|
system ("/sbin/e-smith/signal-event", "calc-du", "$acctName") == 0
|
||
|
|
or die ("Error occurred while calculating disk usage.\n");
|
||
|
|
|
||
|
|
showInitial ($q, "");
|
||
|
|
}
|