TAF.pm
example/cmd_chunks.pl
example/cmd_taf.pl
-example/fetch_metar.pl
-example/fetch_taf.pl
-example/fetch_staf.pl
+example/fetch_weather.pl
+example/cgi_weather.pl
t/1.t
--- /dev/null
+#!/usr/bin/perl -w
+#
+# fetch a metar, taf or short taf from http://weather.noaa.gov
+#
+# This is designed to be used in a IFRAME and returns HTML.
+# It will only query the website once every 30 minutes, the rest
+# of the time it will cache the result in an 'easily guessable'
+# place in /tmp (consider that as a warning).
+#
+# Call it from a web page like this:-
+#
+# <iframe src="cgi-bin/fetch_weather.pl?icao=EGSH&metar=1"
+# name="METAR for EGSH" frameborder="1" width="90%" height="50">
+# [Your user agent does not support frames or is currently configured
+# not to display frames. However, you may visit
+# <A href="cgi-bin/fetch_weather.pl?icao=EGSH&metar=1">METAR for EGSH</A>]
+# </iframe>
+#
+# You can set as many of these as you like:-
+# metar=1 for a metar (default, if no options)
+# staf=1 for a short form (usually more uptodate) TAF
+# taf=1 for a full 18 hour TAF
+# break=1 insert a "<br /><br />" between each result
+#
+# $Id$
+#
+# Copyright (c) 2003 Dirk Koopman G1TLH
+#
+use strict;
+use CGI;
+use Geo::TAF;
+use LWP::UserAgent;
+
+my $q = new CGI;
+my $site_code = uc $q->param('icao');
+my @sort;
+push @sort, 'taf' if $q->param('taf');
+push @sort, 'staf' if $q->param('staf');
+push @sort, 'metar' if $q->param('metar') || @sort == 0;
+my $dobrk = $q->param('break');
+
+error("No ICAO (valid) site code ($site_code) specified") unless $site_code && $site_code =~ /^[A-Z]{4}$/;
+
+my $base = "/tmp";
+my ($sort, $fn, $started);
+
+while ($sort = shift @sort) {
+ $fn = "$base/${sort}_$site_code";
+
+ my ($mt, $size) = (stat $fn)[9,7];
+ $mt ||= 0;
+ $size ||= 0;
+
+ my $brk = "<br /></br />" unless @sort;
+
+ if ($mt + 30*60 < time || $size == 0) {
+ fetch_icao($brk);
+ } else {
+ my $s = retrieve();
+ send_metar($s, $brk);
+ }
+}
+
+sub retrieve
+{
+ open IN, "$fn" or die "cannot open $fn $!\n";
+ my $s = <IN>;
+ close IN;
+ return $s;
+}
+
+sub fetch_icao
+{
+ my $brk = shift || "";
+ my $ua = new LWP::UserAgent;
+
+ my $req = new HTTP::Request GET =>
+ "http://weather.noaa.gov/cgi-bin/mget$sort.pl?cccc=$site_code";
+
+ my $response = $ua->request($req);
+
+ if (!$response->is_success) {
+ error("METAR Fetch $site_code Error", $response->error_as_HTML);
+ } else {
+
+ # Yep, get the data and find the METAR.
+
+ my $m = new Geo::TAF;
+ my $data;
+ $data = $response->as_string; # grap response
+ $data =~ s/\n//go; # remove newlines
+ $data =~ m/($site_code\s\d+Z.*?)</go; # find the METAR string
+ my $metar = $1; # keep it
+
+ # Sanity check
+ if (length($metar)<10) {
+ error("METAR ($metar) is too short");
+ }
+
+ # pass the data to the METAR module.
+ if ($sort =~ /taf/) {
+ $m->taf($metar);
+ } else {
+ $m->metar($metar);
+ }
+ my $s = $m->as_string;
+ send_metar($s, $brk);
+ store($s);
+ }
+}
+
+finish();
+
+sub start
+{
+ return if $started;
+ print $q->header(-type=>'text/html', -expires=>'+60m');
+ print $q->start_html(-title=>"Weather for $site_code", -style=>{'src'=>'/style.css'},);
+ $started = 1;
+}
+
+sub finish
+{
+ print $q->end_html;
+}
+
+sub store
+{
+ my $s = shift;
+ open OUT, ">$fn" or die "cannot open $fn $!\n";
+ print OUT $s;
+ close OUT;
+}
+
+sub send_metar
+{
+ my $s = shift;
+ my $brk = shift || "";
+
+ start();
+ print "<div class=frame>$s</div>$brk";
+}
+
+sub error
+{
+ my $err = shift;
+ my $more = shift;
+ print $q->header(-type=>'text/html', -expires=>'+60m');
+ print $q->start_html($err);
+ print $q->h3($err);
+ print $more if $more;
+ print $q->end_html;
+ warn($err);
+
+ exit(0);
+}
+
+++ /dev/null
-#!/usr/bin/perl -w
-
-# $Id$
-
-# this has been taken from Geo::METAR
-#
-# Brief Description
-# =================
-#
-# fetch_temp.pl is a program that demonstrates how to get the current
-# temperature from a nearby (or not) airport using Geo::METAR and the
-# LWP modules.
-#
-# Given an airport site code on the command line, fetch_temp.pl
-# fetches the current temperature and displays it on the
-# command-line. For fun, here are some example airports:
-#
-# LA : KLAX
-# Dallas : KDFW
-# Detroit: KDTW
-# Chicago: KMDW
-#
-# and of course: EGSH (Norwich)
-#
-#
-# Get the site code.
-
-my $site_code = uc shift @ARGV;
-
-die "Usage: $0 <site_code>\n" unless $site_code;
-
-# Get the modules we need.
-
-use Geo::TAF;
-use LWP::UserAgent;
-use strict;
-
-my $ua = new LWP::UserAgent;
-
-my $req = new HTTP::Request GET =>
- "http://weather.noaa.gov/cgi-bin/mgetmetar.pl?cccc=$site_code";
-
-my $response = $ua->request($req);
-
-if (!$response->is_success) {
-
- print $response->error_as_HTML;
- my $err_msg = $response->error_as_HTML;
- warn "$err_msg\n\n";
- die "$!";
-
-} else {
-
- # Yep, get the data and find the METAR.
-
- my $m = new Geo::TAF;
- my $data;
- $data = $response->as_string; # grap response
- $data =~ s/\n//go; # remove newlines
- $data =~ m/($site_code\s\d+Z.*?)</go; # find the METAR string
- my $metar = $1; # keep it
-
- # Sanity check
-
- if (length($metar)<10) {
- die "METAR is too short! Something went wrong.";
- }
-
- # pass the data to the METAR module.
- $m->metar($metar);
-
- print $m->as_string, "\n";
-
-} # end else
-
-exit;
-
-__END__
-
-
+++ /dev/null
-#!/usr/bin/perl -w
-
-# $Id$
-
-# this has been taken from Geo::METAR
-#
-# Brief Description
-# =================
-#
-# fetch_staf.pl is a program that demonstrates how to get the current
-# short TAF for an airport.
-#
-# Given an airport site code on the command line, fetch_staf.pl
-# fetches the short TAF and displays it on the
-# command-line. For fun, here are some example airports:
-#
-# LA : KLAX
-# Dallas : KDFW
-# Detroit: KDTW
-# Chicago: KMDW
-#
-# and of course: EGSH (Norwich)
-#
-#
-# Get the site code.
-
-my $site_code = uc shift @ARGV;
-
-die "Usage: $0 <site_code>\n" unless $site_code;
-
-# Get the modules we need.
-
-use Geo::TAF;
-use LWP::UserAgent;
-use strict;
-
-my $ua = new LWP::UserAgent;
-
-my $req = new HTTP::Request GET =>
- "http://weather.noaa.gov/cgi-bin/mgetstaf.pl?cccc=$site_code";
-
-my $response = $ua->request($req);
-
-if (!$response->is_success) {
-
- print $response->error_as_HTML;
- my $err_msg = $response->error_as_HTML;
- warn "$err_msg\n\n";
- die "$!";
-
-} else {
-
- # Yep, get the data and find the TAF.
-
- my $m = new Geo::TAF;
- my $data;
- $data = $response->as_string; # grap response
- $data =~ s/\n//go; # remove newlines
- $data =~ m/($site_code\s\d+Z.*?)</go; # find the TAF string
- my $taf = $1; # keep it
-
- # Sanity check
-
- if (length($taf)<10) {
- die "TAF is too short! Something went wrong.";
- }
-
- # pass the data to the TAF module.
- $m->taf($taf);
-
- print $m->as_string, "\n";
-
-} # end else
-
-exit;
-
-__END__
-
-
+++ /dev/null
-#!/usr/bin/perl -w
-
-# $Id$
-
-# this has been taken from Geo::METAR
-#
-# Brief Description
-# =================
-#
-# fetch_staf.pl is a program that demonstrates how to get the current
-# normal TAF for an airport.
-#
-# Given an airport site code on the command line, fetch_taf.pl
-# fetches the normal TAF and displays it on the
-# command-line. For fun, here are some example airports:
-#
-# LA : KLAX
-# Dallas : KDFW
-# Detroit: KDTW
-# Chicago: KMDW
-#
-# and of course: EGSH (Norwich)
-#
-#
-# Get the site code.
-
-my $site_code = uc shift @ARGV;
-
-die "Usage: $0 <site_code>\n" unless $site_code;
-
-# Get the modules we need.
-
-use Geo::TAF;
-use LWP::UserAgent;
-use strict;
-
-my $ua = new LWP::UserAgent;
-
-my $req = new HTTP::Request GET =>
- "http://weather.noaa.gov/cgi-bin/mgettaf.pl?cccc=$site_code";
-
-my $response = $ua->request($req);
-
-if (!$response->is_success) {
-
- print $response->error_as_HTML;
- my $err_msg = $response->error_as_HTML;
- warn "$err_msg\n\n";
- die "$!";
-
-} else {
-
- # Yep, get the data and find the TAF.
-
- my $m = new Geo::TAF;
- my $data;
- $data = $response->as_string; # grap response
- $data =~ s/\n//go; # remove newlines
- $data =~ m/($site_code\s\d+Z.*?)</go; # find the TAF string
- my $taf = $1; # keep it
-
- # Sanity check
-
- if (length($taf)<10) {
- die "TAF is too short! Something went wrong.";
- }
-
- # pass the data to the TAF module.
- $m->taf($taf);
-
- print $m->as_string, "\n";
-
-} # end else
-
-exit;
-
-__END__
-
-
--- /dev/null
+#!/usr/bin/perl -w
+
+# $Id$
+
+# this has been taken from Geo::METAR and modified
+#
+# Brief Description
+# =================
+#
+# fetch_temp.pl is a program that demonstrates how to get the current
+# temperature from a nearby (or not) airport using Geo::METAR and the
+# LWP modules.
+#
+# Given an airport site code on the command line, fetch_temp.pl
+# fetches the current temperature and displays it on the
+# command-line. For fun, here are some example airports:
+#
+# LA : KLAX
+# Dallas : KDFW
+# Detroit: KDTW
+# Chicago: KMDW
+#
+# and of course: EGSH (Norwich)
+#
+#
+
+# Get the site code.
+my @sort;
+while ($ARGV[0] =~ /^-/ && @ARGV > 1) {
+ my @f = split //, shift @ARGV;
+ shift @f;
+ foreach $f (@f) {
+ push @sort, 'taf' if $f eq 't' && ! grep $_ eq 'taf', @sort;
+ push @sort, 'staf' if $f eq 's' && ! grep $_ eq 'staf', @sort;
+ push @sort, 'metar' if $f eq 'm' && ! grep $_ eq 'metar', @sort;
+ }
+}
+push @sort, 'metar' unless @sort;
+
+my $site_code = uc shift @ARGV;
+
+die "Usage: $0 [-mts] <site_code>\n" unless $site_code;
+
+# Get the modules we need.
+
+use Geo::TAF;
+use LWP::UserAgent;
+use strict;
+
+my $sort;
+
+foreach $sort (@sort) {
+
+ my $ua = new LWP::UserAgent;
+
+ my $req = new HTTP::Request GET =>
+ "http://weather.noaa.gov/cgi-bin/mget$sort.pl?cccc=$site_code";
+
+ my $response = $ua->request($req);
+
+ if ($response->is_success) {
+
+ # Yep, get the data and find the METAR.
+
+ my $m = new Geo::TAF;
+ my $data;
+ $data = $response->as_string; # grap response
+ $data =~ s/\n//go; # remove newlines
+ $data =~ m/($site_code\s\d+Z.*?)</go; # find the METAR string
+ my $metar = $1; # keep it
+
+ # Sanity check
+
+ if (length($metar)<10) {
+ die "METAR is too short! Something went wrong.";
+ }
+
+ # pass the data to the METAR module.
+ if ($sort =~ /taf$/) {
+ $m->taf($metar);
+ } else {
+ $m->metar($metar);
+ }
+ print $m->as_string, "\n";
+
+ } else {
+
+ print $response->as_string, "\n";
+
+ }
+ print "\n";
+}
+
+exit 0;
+
+
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