mirror of https://github.com/aredn/aredn.git
101 lines
3.1 KiB
JSON
Executable File
101 lines
3.1 KiB
JSON
Executable File
#!/usr/bin/perl
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=for commnet
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Part of AREDN -- Used for creating Amateur Radio Emergency Data Networks
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Copyright (C) 2015 Conrad Lara
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See Contributors file for additional contributors
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Copyright (c) 2013 David Rivenburg et al. BroadBand-HamNet
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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 version 3 of the License.
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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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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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Additional Terms:
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Additional use restrictions exist on the AREDN(TM) trademark and logo.
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See AREDNLicense.txt for more info.
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Attributions to the AREDN Project must be retained in the source code.
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If importing this code into a new or existing project attribution
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to the AREDN project must be added to the source code.
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You must not misrepresent the origin of the material conained within.
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Modified versions must be modified to attribute to the original source
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and be marked in reasonable ways as differentiate it from the original
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version.
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=cut
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BEGIN {push @INC, '/www/cgi-bin'};
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use perlfunc;
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read_query_string();
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my $debug = 0;
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my $filename="/tmp/snrlog";
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my @values;
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my $counter=0;
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my $sjson;
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my $njson;
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if($parms{"realtime"}) {
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# ==== REALTIME DATA =====
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($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);
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$d = sprintf ("%02d:%02d:%02d", $hour, $min, $sec);
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($s, $n) = get_wifi_signal(get_interface("wifi"));
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$sjson= sprintf("{\"label\":\"%s\",\"y\":%s}",$d,$s);
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$njson= sprintf("{\"label\":\"%s\",\"y\":%s}",$d,$n);
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} else {
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# ==== ARCHIVE DATA =====
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# --- Load the snr data into an array
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open my $fh, '<', $filename or die "Could not open file '$filename' $!";
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chomp(my @lines = <$fh>);
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close $fh;
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# --- iterate over each line and build the json strings
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foreach my $line (@lines) {
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@values = split(',', $line);
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chomp($values[0]);
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chomp($values[1]);
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chomp($values[2]);
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#print "{\"label\":\"$values[0]\",\"y\":\"$values[1]\",\"n\":\"$values[2]\"},";
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$sjson= join("", $sjson, sprintf("{\"label\":\"%s\",\"y\":%s}",$values[0],$values[1]));
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$njson= join("", $njson, sprintf("{\"label\":\"%s\",\"y\":%s}",$values[0],$values[2]));
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# --- properly terminate json
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if(++$counter != scalar(@lines)) {
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$sjson=join("", $sjson, ",");
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$njson=join("", $njson, ",");
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}
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}
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}
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&json_header();
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print "[[";
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print $sjson;
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print "],[";
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print $njson;
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print "]]";
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sub json_header
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{
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# THIS MUST BE ONE LINE!
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# otherwise an intermittent busybox bug will incorrectly "fix" the generated output
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# print "HTTP/1.0 200 OK\r\n"; # Not needed under Uhttpd
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print "Content-type: application/json\r\n";
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print "Cache-Control: no-store\r\n";
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print "\r\n";
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}
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