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#============================================================= -*-perl-*- |
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# |
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# BackupPC::CGI::Lib package |
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# |
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# DESCRIPTION |
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# |
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# This library defines a BackupPC::Lib class and a variety of utility |
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# functions used by BackupPC. |
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# |
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# AUTHOR |
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# Craig Barratt <cbarratt@users.sourceforge.net> |
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# |
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# COPYRIGHT |
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# Copyright (C) 2003 Craig Barratt |
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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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#======================================================================== |
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# |
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# Version 2.1.0, released 20 Jun 2004. |
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# |
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# See http://backuppc.sourceforge.net. |
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# |
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#======================================================================== |
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|
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package BackupPC::CGI::Lib; |
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|
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use strict; |
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use BackupPC::Lib; |
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|
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require Exporter; |
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|
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use vars qw( @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS ); |
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|
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use vars qw($Cgi %In $MyURL $User %Conf $TopDir $BinDir $bpc); |
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use vars qw(%Status %Info %Jobs @BgQueue @UserQueue @CmdQueue |
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%QueueLen %StatusHost); |
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use vars qw($Hosts $HostsMTime $ConfigMTime $PrivAdmin); |
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use vars qw(%UserEmailInfo $UserEmailInfoMTime %RestoreReq %ArchiveReq); |
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use vars qw($Lang); |
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|
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@ISA = qw(Exporter); |
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|
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@EXPORT = qw( ); |
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|
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@EXPORT_OK = qw( |
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timeStamp2 |
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HostLink |
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UserLink |
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EscHTML |
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EscURI |
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ErrorExit |
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ServerConnect |
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GetStatusInfo |
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ReadUserEmailInfo |
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CheckPermission |
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GetUserHosts |
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ConfirmIPAddress |
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Header |
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Trailer |
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NavSectionTitle |
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NavSectionStart |
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NavSectionEnd |
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NavLink |
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h1 |
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h2 |
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$Cgi %In $MyURL $User %Conf $TopDir $BinDir $bpc |
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%Status %Info %Jobs @BgQueue @UserQueue @CmdQueue |
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%QueueLen %StatusHost |
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$Hosts $HostsMTime $ConfigMTime $PrivAdmin |
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%UserEmailInfo $UserEmailInfoMTime %RestoreReq %ArchiveReq |
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$Lang |
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); |
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|
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%EXPORT_TAGS = ( |
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'all' => [ @EXPORT_OK ], |
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); |
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|
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sub NewRequest |
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{ |
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$Cgi = new CGI; |
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%In = $Cgi->Vars; |
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|
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if ( !defined($bpc) ) { |
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ErrorExit($Lang->{BackupPC__Lib__new_failed__check_apache_error_log}) |
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if ( !($bpc = BackupPC::Lib->new(undef, undef, 1)) ); |
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$TopDir = $bpc->TopDir(); |
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$BinDir = $bpc->BinDir(); |
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%Conf = $bpc->Conf(); |
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$Lang = $bpc->Lang(); |
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$ConfigMTime = $bpc->ConfigMTime(); |
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} elsif ( $bpc->ConfigMTime() != $ConfigMTime ) { |
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$bpc->ServerMesg("log Re-read config file because mtime changed"); |
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$bpc->ServerMesg("server reload"); |
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} |
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|
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# |
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# Default REMOTE_USER so in a miminal installation the user |
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# has a sensible default. |
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# |
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$ENV{REMOTE_USER} = $Conf{BackupPCUser} if ( $ENV{REMOTE_USER} eq "" ); |
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|
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# |
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# We require that Apache pass in $ENV{SCRIPT_NAME} and $ENV{REMOTE_USER}. |
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# The latter requires .ht_access style authentication. Replace this |
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# code if you are using some other type of authentication, and have |
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# a different way of getting the user name. |
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# |
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$MyURL = $ENV{SCRIPT_NAME}; |
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$User = $ENV{REMOTE_USER}; |
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|
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# |
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# Clean up %ENV for taint checking |
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# |
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delete @ENV{qw(IFS CDPATH ENV BASH_ENV)}; |
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$ENV{PATH} = $Conf{MyPath}; |
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|
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# |
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# Verify we are running as the correct user |
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# |
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if ( $Conf{BackupPCUserVerify} |
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&& $> != (my $uid = (getpwnam($Conf{BackupPCUser}))[2]) ) { |
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ErrorExit(eval("qq{$Lang->{Wrong_user__my_userid_is___}}"), <<EOF); |
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This script needs to run as the user specified in \$Conf{BackupPCUser}, |
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which is set to $Conf{BackupPCUser}. |
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<p> |
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This is an installation problem. If you are using mod_perl then |
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it appears that Apache is not running as user $Conf{BackupPCUser}. |
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If you are not using mod_perl, then most like setuid is not working |
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properly on BackupPC_Admin. Check the permissions on |
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$Conf{CgiDir}/BackupPC_Admin and look at the documentation. |
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EOF |
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} |
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|
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if ( !defined($Hosts) || $bpc->HostsMTime() != $HostsMTime ) { |
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$HostsMTime = $bpc->HostsMTime(); |
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$Hosts = $bpc->HostInfoRead(); |
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|
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# turn moreUsers list into a hash for quick lookups |
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foreach my $host (keys %$Hosts) { |
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$Hosts->{$host}{moreUsers} = |
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{map {$_, 1} split(",", $Hosts->{$host}{moreUsers}) } |
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} |
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} |
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} |
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|
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sub timeStamp2 |
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{ |
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my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) |
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= localtime($_[0] == 0 ? time : $_[0] ); |
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$mon++; |
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if ( $Conf{CgiDateFormatMMDD} ) { |
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return sprintf("$mon/$mday %02d:%02d", $hour, $min); |
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} else { |
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return sprintf("$mday/$mon %02d:%02d", $hour, $min); |
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} |
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} |
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|
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sub HostLink |
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{ |
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my($host) = @_; |
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my($s); |
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if ( defined($Hosts->{$host}) || defined($Status{$host}) ) { |
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$s = "<a href=\"$MyURL?host=${EscURI($host)}\">$host</a>"; |
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} else { |
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$s = $host; |
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} |
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return \$s; |
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} |
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|
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sub UserLink |
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{ |
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my($user) = @_; |
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my($s); |
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|
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return \$user if ( $user eq "" |
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|| $Conf{CgiUserUrlCreate} eq "" ); |
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if ( $Conf{CgiUserHomePageCheck} eq "" |
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|| -f sprintf($Conf{CgiUserHomePageCheck}, $user, $user, $user) ) { |
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$s = "<a href=\"" |
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. sprintf($Conf{CgiUserUrlCreate}, $user, $user, $user) |
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. "\">$user</a>"; |
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} else { |
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$s = $user; |
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} |
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return \$s; |
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} |
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|
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sub EscHTML |
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{ |
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my($s) = @_; |
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$s =~ s/&/&/g; |
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$s =~ s/\"/"/g; |
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$s =~ s/>/>/g; |
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$s =~ s/</</g; |
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$s =~ s{([^[:print:]])}{sprintf("&\#x%02X;", ord($1));}eg; |
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return \$s; |
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} |
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|
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sub EscURI |
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{ |
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my($s) = @_; |
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$s =~ s{([^\w.\/-])}{sprintf("%%%02X", ord($1));}eg; |
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return \$s; |
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} |
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|
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sub ErrorExit |
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{ |
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my(@mesg) = @_; |
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my($head) = shift(@mesg); |
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my($mesg) = join("</p>\n<p>", @mesg); |
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|
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if ( !defined($ENV{REMOTE_USER}) ) { |
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$mesg .= <<EOF; |
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<p> |
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Note: \$ENV{REMOTE_USER} is not set, which could mean there is an |
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installation problem. BackupPC_Admin expects Apache to authenticate |
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the user and pass their user name into this script as the REMOTE_USER |
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environment variable. See the documentation. |
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EOF |
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} |
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|
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$bpc->ServerMesg("log User $User (host=$In{host}) got CGI error: $head") |
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if ( defined($bpc) ); |
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if ( !defined($Lang->{Error}) ) { |
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$mesg = <<EOF if ( !defined($mesg) ); |
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There is some problem with the BackupPC installation. |
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Please check the permissions on BackupPC_Admin. |
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EOF |
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my $content = <<EOF; |
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${h1("Error: Unable to read config.pl or language strings!!")} |
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<p>$mesg</p> |
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EOF |
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Header("BackupPC: Error", $content); |
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Trailer(); |
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} else { |
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my $content = eval("qq{$Lang->{Error____head}}"); |
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Header(eval("qq{$Lang->{Error}}"), $content); |
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Trailer(); |
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} |
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exit(1); |
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} |
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|
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sub ServerConnect |
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{ |
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# |
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# Verify that the server connection is ok |
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# |
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return if ( $bpc->ServerOK() ); |
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$bpc->ServerDisconnect(); |
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if ( my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort}) ) { |
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if ( CheckPermission() |
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&& -f $Conf{ServerInitdPath} |
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&& $Conf{ServerInitdStartCmd} ne "" ) { |
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my $content = eval("qq{$Lang->{Admin_Start_Server}}"); |
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Header(eval("qq{$Lang->{Unable_to_connect_to_BackupPC_server}}"), $content); |
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Trailer(); |
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exit(1); |
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} else { |
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ErrorExit(eval("qq{$Lang->{Unable_to_connect_to_BackupPC_server}}")); |
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} |
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} |
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} |
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|
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sub GetStatusInfo |
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{ |
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my($status) = @_; |
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ServerConnect(); |
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my $reply = $bpc->ServerMesg("status $status"); |
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$reply = $1 if ( $reply =~ /(.*)/s ); |
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eval($reply); |
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# ignore status related to admin and trashClean jobs |
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if ( $status =~ /\bhosts\b/ ) { |
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foreach my $host ( grep(/admin/, keys(%Status)) ) { |
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delete($Status{$host}) if ( $bpc->isAdminJob($host) ); |
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} |
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delete($Status{$bpc->trashJob}); |
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} |
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} |
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|
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sub ReadUserEmailInfo |
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{ |
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if ( (stat("$TopDir/log/UserEmailInfo.pl"))[9] != $UserEmailInfoMTime ) { |
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do "$TopDir/log/UserEmailInfo.pl"; |
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$UserEmailInfoMTime = (stat("$TopDir/log/UserEmailInfo.pl"))[9]; |
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} |
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} |
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|
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# |
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# Check if the user is privileged. A privileged user can access |
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# any information (backup files, logs, status pages etc). |
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# |
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# A user is privileged if they belong to the group |
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# $Conf{CgiAdminUserGroup}, or they are in $Conf{CgiAdminUsers} |
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# or they are the user assigned to a host in the host file. |
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# |
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sub CheckPermission |
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{ |
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my($host) = @_; |
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my $Privileged = 0; |
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|
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return 0 if ( $User eq "" && $Conf{CgiAdminUsers} ne "*" |
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|| $host ne "" && !defined($Hosts->{$host}) ); |
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if ( $Conf{CgiAdminUserGroup} ne "" ) { |
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my($n,$p,$gid,$mem) = getgrnam($Conf{CgiAdminUserGroup}); |
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$Privileged ||= ($mem =~ /\b$User\b/); |
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|
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# check against REMOTE_NTGROUP from mod_ntlm |
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$Privileged ||= $Conf{CgiAdminUserGroup} eq $ENV{REMOTE_NTGROUP}; |
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} |
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if ( $Conf{CgiAdminUsers} ne "" ) { |
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$Privileged ||= ($Conf{CgiAdminUsers} =~ /\b$User\b/); |
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$Privileged ||= $Conf{CgiAdminUsers} eq "*"; |
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} |
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$PrivAdmin = $Privileged; |
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return $Privileged if ( !defined($host) ); |
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|
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$Privileged ||= $User eq $Hosts->{$host}{user}; |
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$Privileged ||= defined($Hosts->{$host}{moreUsers}{$User}); |
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return $Privileged; |
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} |
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|
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# |
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# Returns the list of hosts that should appear in the navigation bar |
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# for this user. If $getAll is set, the admin gets all the hosts. |
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# Otherwise, regular users get hosts for which they are the user or |
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# are listed in the moreUsers column in the hosts file. |
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# |
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sub GetUserHosts |
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{ |
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my($getAll) = @_; |
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my @hosts; |
| 345 |
|
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if ( $getAll && CheckPermission() ) { |
| 347 |
@hosts = sort keys %$Hosts; |
| 348 |
} else { |
| 349 |
@hosts = sort grep { $Hosts->{$_}{user} eq $User || |
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defined($Hosts->{$_}{moreUsers}{$User}) } keys(%$Hosts); |
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} |
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return @hosts; |
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} |
| 354 |
|
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# |
| 356 |
# Given a host name tries to find the IP address. For non-dhcp hosts |
| 357 |
# we just return the host name. For dhcp hosts we check the address |
| 358 |
# the user is using ($ENV{REMOTE_ADDR}) and also the last-known IP |
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# address for $host. (Later we should replace this with a broadcast |
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# nmblookup.) |
| 361 |
# |
| 362 |
sub ConfirmIPAddress |
| 363 |
{ |
| 364 |
my($host) = @_; |
| 365 |
my $ipAddr = $host; |
| 366 |
|
| 367 |
if ( defined($Hosts->{$host}) && $Hosts->{$host}{dhcp} |
| 368 |
&& $ENV{REMOTE_ADDR} =~ /^(\d+[\.\d]*)$/ ) { |
| 369 |
$ipAddr = $1; |
| 370 |
my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($ipAddr); |
| 371 |
if ( $netBiosHost ne $host ) { |
| 372 |
my($tryIP); |
| 373 |
GetStatusInfo("host(${EscURI($host)})"); |
| 374 |
if ( defined($StatusHost{dhcpHostIP}) |
| 375 |
&& $StatusHost{dhcpHostIP} ne $ipAddr ) { |
| 376 |
$tryIP = eval("qq{$Lang->{tryIP}}"); |
| 377 |
($netBiosHost, $netBiosUser) |
| 378 |
= $bpc->NetBiosInfoGet($StatusHost{dhcpHostIP}); |
| 379 |
} |
| 380 |
if ( $netBiosHost ne $host ) { |
| 381 |
ErrorExit(eval("qq{$Lang->{Can_t_find_IP_address_for}}"), |
| 382 |
eval("qq{$Lang->{host_is_a_DHCP_host}}")); |
| 383 |
} |
| 384 |
$ipAddr = $StatusHost{dhcpHostIP}; |
| 385 |
} |
| 386 |
} |
| 387 |
return $ipAddr; |
| 388 |
} |
| 389 |
|
| 390 |
########################################################################### |
| 391 |
# HTML layout subroutines |
| 392 |
########################################################################### |
| 393 |
|
| 394 |
sub Header |
| 395 |
{ |
| 396 |
my($title, $content, $noBrowse, $contentSub, $contentPost) = @_; |
| 397 |
my @adminLinks = ( |
| 398 |
{ link => "", name => $Lang->{Status}}, |
| 399 |
{ link => "?action=adminOpts", name => $Lang->{Admin_Options}, |
| 400 |
priv => 1}, |
| 401 |
{ link => "?action=summary", name => $Lang->{PC_Summary}}, |
| 402 |
{ link => "?action=view&type=LOG", name => $Lang->{LOG_file}, |
| 403 |
priv => 1}, |
| 404 |
{ link => "?action=LOGlist", name => $Lang->{Old_LOGs}, |
| 405 |
priv => 1}, |
| 406 |
{ link => "?action=emailSummary", name => $Lang->{Email_summary}, |
| 407 |
priv => 1}, |
| 408 |
{ link => "?action=view&type=config", name => $Lang->{Config_file}, |
| 409 |
priv => 1}, |
| 410 |
{ link => "?action=view&type=hosts", name => $Lang->{Hosts_file}, |
| 411 |
priv => 1}, |
| 412 |
{ link => "?action=queue", name => $Lang->{Current_queues}, |
| 413 |
priv => 1}, |
| 414 |
{ link => "?action=search", name => $Lang->{Search_archive}, |
| 415 |
priv => 0}, |
| 416 |
{ link => "?action=burn", name => $Lang->{Burn_media}, |
| 417 |
priv => 1}, |
| 418 |
@{$Conf{CgiNavBarLinks} || []}, |
| 419 |
); |
| 420 |
my $host = $In{host}; |
| 421 |
|
| 422 |
print $Cgi->header(); |
| 423 |
print <<EOF; |
| 424 |
<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| 425 |
<html><head> |
| 426 |
<title>$title</title> |
| 427 |
<link rel=stylesheet type="text/css" href="$Conf{CgiImageDirURL}/$Conf{CgiCSSFile}" title="CSSFile"> |
| 428 |
$Conf{CgiHeaders} |
| 429 |
</head><body onLoad="document.getElementById('NavMenu').style.height=document.body.scrollHeight"> |
| 430 |
<a href="http://backuppc.sourceforge.net"><img src="$Conf{CgiImageDirURL}/logo.gif" hspace="5" vspace="7" border="0"></a><br> |
| 431 |
EOF |
| 432 |
|
| 433 |
if ( defined($Hosts) && defined($host) && defined($Hosts->{$host}) ) { |
| 434 |
print "<div class=\"NavMenu\">"; |
| 435 |
NavSectionTitle("${EscHTML($host)}"); |
| 436 |
print <<EOF; |
| 437 |
</div> |
| 438 |
<div class="NavMenu"> |
| 439 |
EOF |
| 440 |
NavLink("?host=${EscURI($host)}", |
| 441 |
"$host $Lang->{Home}", " class=\"navbar\""); |
| 442 |
NavLink("?action=browse&host=${EscURI($host)}", |
| 443 |
$Lang->{Browse}, " class=\"navbar\"") if ( !$noBrowse ); |
| 444 |
NavLink("?action=view&type=LOG&host=${EscURI($host)}", |
| 445 |
$Lang->{LOG_file}, " class=\"navbar\""); |
| 446 |
NavLink("?action=LOGlist&host=${EscURI($host)}", |
| 447 |
$Lang->{LOG_files}, " class=\"navbar\""); |
| 448 |
if ( -f "$TopDir/pc/$host/SmbLOG.bad" |
| 449 |
|| -f "$TopDir/pc/$host/SmbLOG.bad.z" |
| 450 |
|| -f "$TopDir/pc/$host/XferLOG.bad" |
| 451 |
|| -f "$TopDir/pc/$host/XferLOG.bad.z" ) { |
| 452 |
NavLink("?action=view&type=XferLOGbad&host=${EscURI($host)}", |
| 453 |
$Lang->{Last_bad_XferLOG}, " class=\"navbar\""); |
| 454 |
NavLink("?action=view&type=XferErrbad&host=${EscURI($host)}", |
| 455 |
$Lang->{Last_bad_XferLOG_errors_only}, |
| 456 |
" class=\"navbar\""); |
| 457 |
} |
| 458 |
if ( -f "$TopDir/pc/$host/config.pl" ) { |
| 459 |
NavLink("?action=view&type=config&host=${EscURI($host)}", |
| 460 |
$Lang->{Config_file}, " class=\"navbar\""); |
| 461 |
} |
| 462 |
print "</div>\n"; |
| 463 |
} |
| 464 |
print("<div id=\"Content\">\n$content\n"); |
| 465 |
if ( defined($contentSub) && ref($contentSub) eq "CODE" ) { |
| 466 |
while ( (my $s = &$contentSub()) ne "" ) { |
| 467 |
print($s); |
| 468 |
} |
| 469 |
} |
| 470 |
print($contentPost) if ( defined($contentPost) ); |
| 471 |
print <<EOF; |
| 472 |
<br><br><br> |
| 473 |
</div> |
| 474 |
<div class="NavMenu" id="NavMenu" style="height:100%"> |
| 475 |
EOF |
| 476 |
my $hostSelectbox = "<option value=\"#\">$Lang->{Select_a_host}</option>"; |
| 477 |
my @hosts = GetUserHosts($Conf{CgiNavBarAdminAllHosts}); |
| 478 |
if ( defined($Hosts) && %$Hosts > 0 && @hosts ) { |
| 479 |
NavSectionTitle($Lang->{Hosts}); |
| 480 |
foreach my $host ( @hosts ) { |
| 481 |
NavLink("?host=${EscURI($host)}", $host) |
| 482 |
if ( @hosts < $Conf{CgiNavBarAdminAllHosts} ); |
| 483 |
my $sel = " selected" if ( $host eq $In{host} ); |
| 484 |
$hostSelectbox .= "<option value=\"?host=${EscURI($host)}\"$sel>" |
| 485 |
. "$host</option>"; |
| 486 |
} |
| 487 |
} |
| 488 |
if ( @hosts >= $Conf{CgiNavBarAdminAllHosts} ) { |
| 489 |
print <<EOF; |
| 490 |
<br> |
| 491 |
<select onChange="document.location=this.value"> |
| 492 |
$hostSelectbox |
| 493 |
</select> |
| 494 |
<br><br> |
| 495 |
EOF |
| 496 |
} |
| 497 |
if ( $Conf{CgiSearchBoxEnable} ) { |
| 498 |
print <<EOF; |
| 499 |
<form action="$MyURL" method="get"> |
| 500 |
<input type="text" name="host" size="14" maxlength="64"> |
| 501 |
<input type="hidden" name="action" value="hostInfo"><input type="submit" value="$Lang->{Go}" name="ignore"> |
| 502 |
</form> |
| 503 |
EOF |
| 504 |
} |
| 505 |
NavSectionTitle($Lang->{NavSectionTitle_}); |
| 506 |
foreach my $l ( @adminLinks ) { |
| 507 |
if ( $PrivAdmin || !$l->{priv} ) { |
| 508 |
my $txt = defined($l->{lname}) ? $Lang->{$l->{lname}} : $l->{name}; |
| 509 |
NavLink($l->{link}, $txt); |
| 510 |
} |
| 511 |
} |
| 512 |
|
| 513 |
print <<EOF; |
| 514 |
<br><br><br> |
| 515 |
</div> |
| 516 |
EOF |
| 517 |
} |
| 518 |
|
| 519 |
sub Trailer |
| 520 |
{ |
| 521 |
print <<EOF; |
| 522 |
</body></html> |
| 523 |
EOF |
| 524 |
} |
| 525 |
|
| 526 |
|
| 527 |
sub NavSectionTitle |
| 528 |
{ |
| 529 |
my($head) = @_; |
| 530 |
print <<EOF; |
| 531 |
<div class="NavTitle">$head</div> |
| 532 |
EOF |
| 533 |
} |
| 534 |
|
| 535 |
sub NavSectionStart |
| 536 |
{ |
| 537 |
} |
| 538 |
|
| 539 |
sub NavSectionEnd |
| 540 |
{ |
| 541 |
} |
| 542 |
|
| 543 |
sub NavLink |
| 544 |
{ |
| 545 |
my($link, $text) = @_; |
| 546 |
if ( defined($link) ) { |
| 547 |
my($class); |
| 548 |
$class = " class=\"NavCurrent\"" |
| 549 |
if ( length($link) && $ENV{REQUEST_URI} =~ /\Q$link\E$/ |
| 550 |
|| $link eq "" && $ENV{REQUEST_URI} !~ /\?/ ); |
| 551 |
$link = "$MyURL$link" if ( $link eq "" || $link =~ /^\?/ ); |
| 552 |
print <<EOF; |
| 553 |
<a href="$link"$class>$text</a> |
| 554 |
EOF |
| 555 |
} else { |
| 556 |
print <<EOF; |
| 557 |
$text<br> |
| 558 |
EOF |
| 559 |
} |
| 560 |
} |
| 561 |
|
| 562 |
sub h1 |
| 563 |
{ |
| 564 |
my($str) = @_; |
| 565 |
return \<<EOF; |
| 566 |
<div class="h1">$str</div> |
| 567 |
EOF |
| 568 |
} |
| 569 |
|
| 570 |
sub h2 |
| 571 |
{ |
| 572 |
my($str) = @_; |
| 573 |
return \<<EOF; |
| 574 |
<div class="h2">$str</div> |
| 575 |
EOF |
| 576 |
} |
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