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https://github.com/vincentmli/bpfire.git
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a276dfba7a
As discussed in bug #12615 Signed-off-by: Leo-Andres Hofmann <hofmann@leo-andres.de> Reviewed-by: Adolf Belka <adolf.belka@ipfire.org> Reviewed-by: Peter Müller <peter.mueller@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
250 lines
8.2 KiB
Perl
250 lines
8.2 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2005-2021 IPFire Team #
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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 3 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, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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use strict;
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use URI;
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use GD;
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use GD::Text::Wrap;
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use experimental 'smartmatch';
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# debugging
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#use warnings;
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#use CGI::Carp 'fatalsToBrowser';
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require '/var/ipfire/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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require "${General::swroot}/graphs.pl";
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# List of graph origins that getrrdimage.cgi can process directly
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# (unknown origins are forwarded to ensure compatibility)
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my @supported_origins = ("entropy.cgi", "hardwaregraphs.cgi", "media.cgi",
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"memory.cgi","netexternal.cgi", "netinternal.cgi", "netother.cgi",
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"netovpnrw.cgi", "netovpnsrv.cgi", "qos.cgi", "system.cgi");
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### Process GET parameters ###
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# URL format: /?origin=[graph origin cgi]&graph=[graph name]&range=[time range]
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my $uri = URI->new($ENV{'REQUEST_URI'});
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my %query = $uri->query_form;
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my $origin = lc $query{'origin'}; # lower case
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my $graph = $query{'graph'};
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my $range = lc $query{'range'}; # lower case
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# Check parameters
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unless(($origin =~ /^\w+?\.cgi$/) && ($graph =~ /^[\w\-.,; ]+?$/) && ($range ~~ @Graphs::time_ranges)) {
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# Send HTTP headers
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_start_png_output();
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_print_error("URL parameters missing or malformed.");
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exit;
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}
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# Unsupported graph origin: Redirect request to the CGI specified in the "origin" parameter
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# This enables backwards compatibility with addons that use Graphs::makegraphbox to ouput their own graphs
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unless(($origin ~~ @supported_origins) || ($origin eq "getrrdimage.cgi")) {
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# Rewrite to old URL format: /[graph origin cgi]?[graph name]?[time range]
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my $location = "https://$ENV{'SERVER_NAME'}:$ENV{'SERVER_PORT'}/cgi-bin/${origin}?${graph}?${range}";
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# Send HTTP redirect
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print "Status: 302 Found\n";
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print "Location: $location\n";
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print "Content-type: text/html; charset=UTF-8\n";
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print "\n"; # End of HTTP headers
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print "Unsupported origin, request redirected to '$location'";
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exit;
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}
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### Create graphs ###
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# Send HTTP headers
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_start_png_output();
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# Graphs are first grouped by their origin.
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# This is because some graph categories require special parameter handling.
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my $graphstatus = '';
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if($origin eq "entropy.cgi") { ## entropy.cgi
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$graphstatus = Graphs::updateentropygraph($range);
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# ------
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} elsif($origin eq "hardwaregraphs.cgi") { ## hardwaregraphs.cgi
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if($graph eq "hwtemp") {
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$graphstatus = Graphs::updatehwtempgraph($range);
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} elsif($graph eq "hwfan") {
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$graphstatus = Graphs::updatehwfangraph($range);
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} elsif($graph eq "hwvolt") {
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$graphstatus = Graphs::updatehwvoltgraph($range);
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} elsif($graph eq "thermaltemp") {
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$graphstatus = Graphs::updatethermaltempgraph($range);
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} elsif($graph =~ "sd?") {
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$graphstatus = Graphs::updatehddgraph($graph, $range);
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} elsif($graph =~ "nvme?") {
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$graphstatus = Graphs::updatehddgraph($graph, $range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} elsif($origin eq "media.cgi") { ## media.cgi
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if ($graph =~ "sd?" || $graph =~ "mmcblk?" || $graph =~ "nvme?n?" || $graph =~ "xvd??" || $graph =~ "vd?" || $graph =~ "md*" ) {
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$graphstatus = Graphs::updatediskgraph($graph, $range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} elsif($origin eq "memory.cgi") { ## memory.cgi
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if($graph eq "memory") {
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$graphstatus = Graphs::updatememorygraph($range);
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} elsif($graph eq "swap") {
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$graphstatus = Graphs::updateswapgraph($range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} elsif($origin eq "netexternal.cgi") { ## netexternal.cgi
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$graphstatus = Graphs::updateifgraph($graph, $range);
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# ------
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} elsif($origin eq "netinternal.cgi") { ## netinternal.cgi
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if ($graph =~ /wireless/){
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$graph =~ s/wireless//g;
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$graphstatus = Graphs::updatewirelessgraph($graph, $range);
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} else {
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$graphstatus = Graphs::updateifgraph($graph, $range);
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}
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# ------
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} elsif($origin eq "netother.cgi") { ## netother.cgi
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if($graph eq "conntrack") {
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$graphstatus = Graphs::updateconntrackgraph($range);
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} elsif($graph eq "fwhits") {
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$graphstatus = Graphs::updatefwhitsgraph($range);
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} else {
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$graphstatus = Graphs::updatepinggraph($graph, $range);
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}
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# ------
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} elsif($origin eq "netovpnrw.cgi") { ## netovpnrw.cgi
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if($graph ne "UNDEF") {
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$graphstatus = Graphs::updatevpngraph($graph, $range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} elsif($origin eq "netovpnsrv.cgi") { ## netovpnsrv.cgi
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if ($graph =~ /ipsec-/){
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$graph =~ s/ipsec-//g;
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$graphstatus = Graphs::updateifgraph($graph, $range);
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} else {
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$graphstatus = Graphs::updatevpnn2ngraph($graph, $range);
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}
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# ------
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} elsif($origin eq "qos.cgi") { ## qos.cgi
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$graphstatus = Graphs::updateqosgraph($graph, $range);
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# ------
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} elsif($origin eq "services.cgi") { ## services.cgi
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if($graph eq "processescpu") {
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$graphstatus = Graphs::updateprocessescpugraph($range);
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} elsif($graph eq "processesmemory") {
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$graphstatus = Graphs::updateprocessesmemorygraph($range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} elsif($origin eq "system.cgi") { ## system.cgi
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if($graph eq "cpu") {
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$graphstatus = Graphs::updatecpugraph($range);
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} elsif($graph eq "cpufreq") {
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$graphstatus = Graphs::updatecpufreqgraph($range);
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} elsif($graph eq "load") {
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$graphstatus = Graphs::updateloadgraph($range);
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} else {
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$graphstatus = "Unknown graph name.";
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}
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# ------
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} else {
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$graphstatus = "Unknown graph origin.";
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}
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### Print error message ###
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# Add request parameters for debugging
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if($graphstatus) {
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$graphstatus = "$graphstatus\n($origin, $graph, $range)";
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# Save message in system log for further inspection
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General::log($graphstatus);
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_print_error($graphstatus);
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}
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###--- Internal functions ---###
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# Send HTTP headers and switch to binary output
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# (don't print any non-image data to STDOUT afterwards)
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sub _start_png_output {
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print "Cache-Control: no-cache, no-store\n";
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print "Content-Type: image/png\n";
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print "\n"; # End of HTTP headers
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binmode(STDOUT);
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}
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# Print error message to PNG output
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sub _print_error {
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my ($message) = @_;
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$message = "- Error -\n \n$message";
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# Create new image with the same size as a graph
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my $img = GD::Image->new($Graphs::image_size{'width'}, $Graphs::image_size{'height'});
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$img->interlaced('true');
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# Basic colors
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my $color_background = $img->colorAllocate(255, 255, 255);
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my $color_border = $img->colorAllocate(255, 0, 0);
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my $color_text = $img->colorAllocate(0, 0, 0);
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# Background and border
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$img->setThickness(2);
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$img->filledRectangle(0, 0, $img->width, $img->height, $color_background);
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$img->rectangle(10, 10, $img->width - 10, $img->height - 10, $color_border);
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# Draw message with line-wrap
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my $textbox = GD::Text::Wrap->new($img,
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text => $message,
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width => ($img->width - 50),
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color => $color_text,
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align => 'center',
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line_space => 5,
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preserve_nl => 1
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);
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$textbox->set_font(gdLargeFont);
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$textbox->draw(25, 25);
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# Get PNG output
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print $img->png;
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}
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