mirror of
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ac1cfefab2
git-svn-id: http://svn.ipfire.org/svn/ipfire/trunk@67 ea5c0bd1-69bd-2848-81d8-4f18e57aeed8
422 lines
13 KiB
Perl
422 lines
13 KiB
Perl
#!/usr/bin/perl
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#
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# SmoothWall CGIs
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#
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# This code is distributed under the terms of the GPL
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#
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# (c) The SmoothWall Team
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#
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# $Id: proxy.cgi,v 1.13.2.23 2006/01/29 09:29:47 eoberlander Exp $
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#
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use strict;
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# enable only the following on debugging purpose
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#use warnings;
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#use CGI::Carp 'fatalsToBrowser';
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require 'CONFIG_ROOT/general-functions.pl';
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require "${General::swroot}/lang.pl";
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require "${General::swroot}/header.pl";
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my %proxysettings=();
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my %netsettings=();
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my %mainsettings=();
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my $errormessage = '';
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my $NeedDoHTML = 1;
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&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
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&General::readhash("${General::swroot}/main/settings", \%mainsettings);
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&Header::showhttpheaders();
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$proxysettings{'ACTION'} = '';
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$proxysettings{'VALID'} = '';
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$proxysettings{'UPSTREAM_PROXY'} = '';
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$proxysettings{'UPSTREAM_USER'} = '';
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$proxysettings{'UPSTREAM_PASSWORD'} = '';
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$proxysettings{'ENABLE'} = 'off';
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$proxysettings{'ENABLE_BLUE'} = 'off';
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$proxysettings{'CACHE_SIZE'} = '50';
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$proxysettings{'TRANSPARENT'} = 'off';
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$proxysettings{'TRANSPARENT_BLUE'} = 'off';
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$proxysettings{'MAX_SIZE'} = '4096';
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$proxysettings{'MIN_SIZE'} = '0';
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$proxysettings{'MAX_OUTGOING_SIZE'} = '0';
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$proxysettings{'MAX_INCOMING_SIZE'} = '0';
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$proxysettings{'LOGGING'} = 'off';
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$proxysettings{'PROXY_PORT'} = '800';
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$proxysettings{'EXTENSION_METHODS'} = '';
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&Header::getcgihash(\%proxysettings);
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my $needhup = 0;
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my $cachemem = '';
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if ($proxysettings{'ACTION'} eq $Lang::tr{'save'})
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{
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#assume error
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my $configerror = 1;
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if ($proxysettings{'ENABLE'} !~ /^(on|off)$/ ||
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$proxysettings{'TRANSPARENT'} !~ /^(on|off)$/ ||
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$proxysettings{'ENABLE_BLUE'} !~ /^(on|off)$/ ||
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$proxysettings{'TRANSPARENT_BLUE'} !~ /^(on|off)$/ ) {
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$errormessage = $Lang::tr{'invalid input'};
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goto ERROR;
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}
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if (!($proxysettings{'CACHE_SIZE'} =~ /^\d+/) ||
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($proxysettings{'CACHE_SIZE'} < 10))
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{
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$errormessage = $Lang::tr{'invalid cache size'};
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goto ERROR;
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}
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if (!($proxysettings{'MAX_SIZE'} =~ /^\d+/))
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{
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$errormessage = $Lang::tr{'invalid maximum object size'};
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goto ERROR;
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}
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if (!($proxysettings{'MIN_SIZE'} =~ /^\d+/))
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{
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$errormessage = $Lang::tr{'invalid minimum object size'};
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goto ERROR;
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}
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if (!($proxysettings{'MAX_OUTGOING_SIZE'} =~ /^\d+/))
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{
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$errormessage = $Lang::tr{'invalid maximum outgoing size'};
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goto ERROR;
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}
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if (!($proxysettings{'MAX_INCOMING_SIZE'} =~ /^\d+/))
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{
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$errormessage = $Lang::tr{'invalid maximum incoming size'};
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goto ERROR;
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}
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if (!($proxysettings{'EXTENSION_METHODS'} =~ /^(|[A-Z0-9 _-]+)$/))
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{
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$errormessage = $Lang::tr{'squid extension methods invalid'};
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goto ERROR;
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}
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# Quick parent proxy error checking of username and password info. If username password don't both exist give an error.
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my $proxy1 = 'YES';
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my $proxy2 = 'YES';
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if (($proxysettings{'UPSTREAM_USER'} eq '')) {$proxy1 = '';}
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if (($proxysettings{'UPSTREAM_PASSWORD'} eq '')) {$proxy2 = '';}
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if (($proxy1 ne $proxy2))
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{
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$errormessage = $Lang::tr{'invalid upstream proxy username or password setting'};
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goto ERROR;
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}
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$_ = $proxysettings{'UPSTREAM_PROXY'};
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my ($remotehost, $remoteport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
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$remoteport = 80 if ($remoteport eq '');
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$proxysettings{'VALID'} = 'yes';
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&General::writehash("${General::swroot}/proxy/settings", \%proxysettings);
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#
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# NAH, 03-Jan-2004
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#
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my @free = `/usr/bin/free`;
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$free[1] =~ m/(\d+)/;
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$cachemem = int $1 / 10;
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if ($cachemem < 4096) {
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$cachemem = 4096;
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}
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if ($cachemem > $proxysettings{'CACHE_SIZE'} * 40) {
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$cachemem = ( $proxysettings{'CACHE_SIZE'} * 40 );
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}
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open(FILE, ">/${General::swroot}/proxy/squid.conf") or die "Unable to write squid.conf file";
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flock(FILE, 2);
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print FILE <<END
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shutdown_lifetime 5 seconds
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icp_port 0
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http_port $netsettings{'GREEN_ADDRESS'}:$proxysettings{'PROXY_PORT'}
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END
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;
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print FILE "\nextension_methods $proxysettings{'EXTENSION_METHODS'}\n" if ($proxysettings{'EXTENSION_METHODS'} ne '');
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if ($netsettings{'BLUE_DEV'} && $proxysettings{'ENABLE_BLUE'} eq 'on') {
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print FILE "http_port $netsettings{'BLUE_ADDRESS'}:$proxysettings{'PROXY_PORT'}\n";
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}
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print FILE <<END
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acl QUERY urlpath_regex cgi-bin \\?
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no_cache deny QUERY
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cache_effective_user squid
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cache_effective_group squid
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pid_filename /var/run/squid.pid
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END
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;
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if ($proxysettings{'LOGGING'} eq 'on')
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{
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print FILE <<END
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cache_access_log /var/log/squid/access.log
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cache_log /var/log/squid/cache.log
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cache_store_log none
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END
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;} else {
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print FILE <<END
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cache_access_log /dev/null
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cache_log /dev/null
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cache_store_log none
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END
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;}
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print FILE <<END
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log_mime_hdrs off
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forwarded_for off
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END
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;
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#Insert acl file and replace __VAR__ with correct values
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my $blue_net = ''; #BLUE empty by default
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my $blue_ip = '';
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if ($netsettings{'BLUE_DEV'} && $proxysettings{'ENABLE_BLUE'} eq 'on') {
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$blue_net = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
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$blue_ip = "$netsettings{'BLUE_ADDRESS'}";
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}
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open (ACL, "${General::swroot}/proxy/acl") or die "Unable to open ACL list file";
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while (<ACL>) {
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$_ =~ s/__GREEN_IP__/$netsettings{'GREEN_ADDRESS'}/;
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$_ =~ s/__GREEN_NET__/$netsettings{'GREEN_NETADDRESS'}\/$netsettings{'GREEN_NETMASK'}/;
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$_ =~ s/__BLUE_IP__/$blue_ip/;
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$_ =~ s/__BLUE_NET__/$blue_net/;
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$_ =~ s/__PROXY_PORT__/$proxysettings{'PROXY_PORT'}/;
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print FILE $_;
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}
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close (ACL);
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# This value is in bytes, so we must turn it from KB into bytes
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my $max_incoming_size = $proxysettings{'MAX_INCOMING_SIZE'} * 1024;
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print FILE <<END
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maximum_object_size $proxysettings{'MAX_SIZE'} KB
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minimum_object_size $proxysettings{'MIN_SIZE'} KB
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cache_mem $cachemem KB
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cache_dir aufs /var/log/cache $proxysettings{'CACHE_SIZE'} 16 256
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request_body_max_size $proxysettings{'MAX_OUTGOING_SIZE'} KB
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reply_body_max_size $max_incoming_size allow all
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visible_hostname $mainsettings{'HOSTNAME'}.$mainsettings{'DOMAINNAME'}
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END
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;
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# Write the parent proxy info, if needed.
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if ($remotehost ne '')
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{
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# Enter authentication for the parent cache (format is login=user:password)
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if ($proxy1 eq 'YES') {
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print FILE <<END
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cache_peer $remotehost parent $remoteport 3130 login=$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'} default no-query
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END
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;
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} else {
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# Not using authentication with the parent cache
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print FILE <<END
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cache_peer $remotehost parent $remoteport 3130 default no-query
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END
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;
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}
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print FILE "never_direct allow all\n";
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}
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if (($proxysettings{'TRANSPARENT'} eq 'on') ||
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($proxysettings{'TRANSPARENT_BLUE'} eq 'on'))
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{
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print FILE <<END
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httpd_accel_host virtual
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httpd_accel_port 80
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httpd_accel_with_proxy on
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httpd_accel_uses_host_header on
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END
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;
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}
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close FILE;
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$configerror = 0; ## a good config!
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ERROR:
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unlink "${General::swroot}/proxy/enable";
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unlink "${General::swroot}/proxy/transparent";
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unlink "${General::swroot}/proxy/enable_blue";
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unlink "${General::swroot}/proxy/transparent_blue";
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&DoHTML;
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if (!$configerror)
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{
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if ($proxysettings{'ENABLE'} eq 'on') {
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system ('/bin/touch', "${General::swroot}/proxy/enable"); }
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if ($proxysettings{'TRANSPARENT'} eq 'on') {
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system ('/bin/touch', "${General::swroot}/proxy/transparent"); }
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if ($proxysettings{'ENABLE_BLUE'} eq 'on') {
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system ('/bin/touch', "${General::swroot}/proxy/enable_blue"); }
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if ($proxysettings{'TRANSPARENT_BLUE'} eq 'on') {
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system ('/bin/touch', "${General::swroot}/proxy/transparent_blue"); }
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system('/usr/local/bin/restartsquid');
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}
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}
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if ($proxysettings{'ACTION'} eq $Lang::tr{'clear cache'})
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{
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&DoHTML;
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system('/usr/local/bin/restartsquid','-f');
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}
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&DoHTML if $NeedDoHTML;
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sub DoHTML {
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$NeedDoHTML = 0;
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&General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
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my %checked=();
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$checked{'ENABLE'}{'off'} = '';
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$checked{'ENABLE'}{'on'} = '';
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$checked{'ENABLE'}{$proxysettings{'ENABLE'}} = "checked='checked'";
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$checked{'TRANSPARENT'}{'off'} = '';
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$checked{'TRANSPARENT'}{'on'} = '';
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$checked{'TRANSPARENT'}{$proxysettings{'TRANSPARENT'}} = "checked='checked'";
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$checked{'ENABLE_BLUE'}{'off'} = '';
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$checked{'ENABLE_BLUE'}{'on'} = '';
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$checked{'ENABLE_BLUE'}{$proxysettings{'ENABLE_BLUE'}} = "checked='checked'";
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$checked{'TRANSPARENT_BLUE'}{'off'} = '';
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$checked{'TRANSPARENT_BLUE'}{'on'} = '';
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$checked{'TRANSPARENT_BLUE'}{$proxysettings{'TRANSPARENT_BLUE'}} = "checked='checked'";
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$checked{'LOGGING'}{'off'} = '';
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$checked{'LOGGING'}{'on'} = '';
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$checked{'LOGGING'}{$proxysettings{'LOGGING'}} = "checked='checked'";
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&Header::openpage($Lang::tr{'web proxy configuration'}, 1, '');
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&Header::openbigbox('100%', 'left', '', $errormessage);
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if ($errormessage) {
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&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
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print "<font class='base'>$errormessage </font>\n";
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&Header::closebox();
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}
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print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
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&Header::openbox('100%', 'left', "$Lang::tr{'web proxy'}:");
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print <<END
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<table width='100%'>
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<tr>
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<td width='25%' class='base'>$Lang::tr{'enabled on'} <font color="${Header::colourgreen}">Green</font>:</td>
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<td width='15%'><input type='checkbox' name='ENABLE' $checked{'ENABLE'}{'on'} /></td>
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<td width='30%' class='base'>$Lang::tr{'upstream proxy host:port'}: <img src='/blob.gif' alt='*' /></td>
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<td width='30%'><input type='text' name='UPSTREAM_PROXY' value='$proxysettings{'UPSTREAM_PROXY'}' /></td>
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</tr>
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<tr>
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<td class='base'>$Lang::tr{'transparent on'} <font color="${Header::colourgreen}">Green</font>:</td>
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<td><input type='checkbox' name='TRANSPARENT' $checked{'TRANSPARENT'}{'on'} /></td>
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<td class='base'>$Lang::tr{'upstream username'} <img src='/blob.gif' alt='*' /></td>
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<td><input type='text' name='UPSTREAM_USER' value='$proxysettings{'UPSTREAM_USER'}' /></td>
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</tr>
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<tr>
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END
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;
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if ($netsettings{'BLUE_DEV'}) {
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print "<td class='base'>$Lang::tr{'enabled on'} <font color='${Header::colourblue}'>Blue</font>:</td>";
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print "<td><input type='checkbox' name='ENABLE_BLUE' $checked{'ENABLE_BLUE'}{'on'} /></td>";
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} else {
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print "<td colspan='2'> </td>";
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}
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print <<END
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<td class='base'>$Lang::tr{'upstream password'} <img src='/blob.gif' alt='*' /></td>
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<td><input type='password' name='UPSTREAM_PASSWORD' value='$proxysettings{'UPSTREAM_PASSWORD'}' /></td>
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</tr>
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<tr>
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END
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;
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if ($netsettings{'BLUE_DEV'}) {
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print "<td class='base'>$Lang::tr{'transparent on'} <font color='${Header::colourblue}'>Blue</font>:</td>";
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print "<td><input type='checkbox' name='TRANSPARENT_BLUE' $checked{'TRANSPARENT_BLUE'}{'on'} /></td>";
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} else {
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print "<td colspan='2'> </td>";
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}
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print <<END
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<td class='base'>$Lang::tr{'proxy port'}:</td>
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<td><input type='text' name='PROXY_PORT' value='$proxysettings{'PROXY_PORT'}' size='5' /></td>
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</tr>
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<tr>
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<td class='base'>$Lang::tr{'log enabled'}:</td>
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<td><input type='checkbox' name='LOGGING' $checked{'LOGGING'}{'on'} /></td>
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<td>$Lang::tr{'squid extension methods'}: <img src='/blob.gif' alt='*' /></td>
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<td><input type='text' name='EXTENSION_METHODS' value='$proxysettings{'EXTENSION_METHODS'}' /></td>
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</tr>
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<!--TAG FOR ADDONS-->
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<tr>
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<td colspan='4'><hr /><b>$Lang::tr{'cache management'}</b></td>
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</tr>
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<tr>
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<td width='25%' class='base'>$Lang::tr{'cache size'}</td>
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<td><input type='text' name='CACHE_SIZE' value='$proxysettings{'CACHE_SIZE'}' size='5' /></td>
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</tr>
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<tr>
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<td class='base'>$Lang::tr{'min size'}</td>
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<td><input type='text' name='MIN_SIZE' value='$proxysettings{'MIN_SIZE'}' size='5' /></td>
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<td class='base'>$Lang::tr{'max size'}</td>
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<td><input type='text' name='MAX_SIZE' value='$proxysettings{'MAX_SIZE'}' size='5' /></td>
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</tr>
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<tr>
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<td colspan='4'><hr /><b>$Lang::tr{'transfer limits'}</b></td>
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</tr>
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<tr>
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<td class='base'>$Lang::tr{'max incoming size'}</td>
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<td><input type='text' name='MAX_INCOMING_SIZE' value='$proxysettings{'MAX_INCOMING_SIZE'}' size='5' /></td>
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<td class='base'>$Lang::tr{'max outgoing size'}</td>
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<td><input type='text' name='MAX_OUTGOING_SIZE' value='$proxysettings{'MAX_OUTGOING_SIZE'}' size='5' /></td>
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</tr>
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</table>
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<table width='100%'>
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<hr />
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<tr>
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<td width='28%'>
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<img src='/blob.gif' align='top' alt='*' />
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<font class='base'>$Lang::tr{'this field may be blank'}</font>
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</td>
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<td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'clear cache'}' /></td>
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<td width=33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
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<td width='5%' align='right'>
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<a href='${General::adminmanualurl}/services.html#services_webproxy' target='_blank'>
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<img src='/images/web-support.png' title='$Lang::tr{'online help en'}' /></a></td>
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</tr>
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</table>
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END
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;
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&Header::closebox();
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print "</form>\n";
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&Header::closebigbox();
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&Header::closepage();
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} # end sub DoHTML
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1
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