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#!/usr/bin/perl -w -I../perllib
# rss.cgi:
# RSS for FixMyStreet
#
# Copyright (c) 2007 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org. WWW: http://www.mysociety.org
#
# $Id: rss.cgi,v 1.38 2009-12-17 15:15:21 louise Exp $
use strict;
use Error qw(:try);
use Standard;
use URI::Escape;
use FixMyStreet::Alert;
use FixMyStreet::Geocode;
use mySociety::MaPit;
use mySociety::GeoUtil;
use mySociety::Gaze;
sub main {
my $q = shift;
my $type = $q->param('type') || '';
my $cobrand = Page::get_cobrand($q);
my $xsl = Cobrand::feed_xsl($cobrand);
my $out;
if ($type eq 'local_problems') {
$out = rss_local_problems($q);
return unless $out;
} elsif ($type eq 'new_updates') {
my $id = $q->param('id');
my $problem = Problems::fetch_problem($id);
if (!$problem) {
print $q->header(-status=>'404 Not Found',-type=>'text/html');
return;
}
my $qs = 'report/' . $id;
$out = FixMyStreet::Alert::generate_rss($type, $xsl, $qs, [$id], undef, $cobrand, $q);
} elsif ($type eq 'new_problems' || $type eq 'new_fixed_problems') {
$out = FixMyStreet::Alert::generate_rss($type, $xsl, '', undef, undef, $cobrand, $q);
} elsif ($type eq 'council_problems') {
my $id = $q->param('id');
my $qs = '/'.$id;
$out = FixMyStreet::Alert::generate_rss($type, $xsl, $qs, [$id], undef, $cobrand. $q);
} elsif ($type eq 'area_problems') {
my $id = $q->param('id');
my $va_info = mySociety::MaPit::call('area', $id);
my $qs = '/'.$id;
$out = FixMyStreet::Alert::generate_rss($type, $xsl, $qs, [$id], { NAME => $va_info->{name} }, $cobrand, $q);
} elsif ($type eq 'all_problems') {
$out = FixMyStreet::Alert::generate_rss($type, $xsl, '', undef, undef, $cobrand, $q);
} else {
my $base = mySociety::Config::get('BASE_URL');
print $q->redirect($base . '/alert');
return '';
}
print $q->header( -type => 'application/xml; charset=utf-8' );
print $out;
}
Page::do_fastcgi(\&main);
sub rss_local_problems {
my $q = shift;
my $pc = $q->param('pc');
my $x = $q->param('x');
my $y = $q->param('y');
my $lat = $q->param('lat');
my $lon = $q->param('lon');
my $e = $q->param('e');
my $n = $q->param('n');
my $d = $q->param('d') || '';
$d = '' unless $d =~ /^\d+$/;
my $d_str = '';
$d_str = "/$d" if $d;
my $cobrand = Page::get_cobrand($q);
my $base = Cobrand::base_url($cobrand);
if ($lat) { # In the UK, it'll never be 0 :)
($e, $n) = mySociety::GeoUtil::wgs84_to_national_grid($lat, $lon, 'G');
$e = int($e + 0.5);
$n = int($n + 0.5);
print $q->redirect(-location => "$base/rss/n/$e,$n$d_str");
return '';
} elsif ($x && $y) {
# 5000/31 as initial scale factor for these RSS feeds, now variable so redirect.
$e = int( ($x * 5000/31) + 0.5 );
$n = int( ($y * 5000/31) + 0.5 );
print $q->redirect(-location => "$base/rss/n/$e,$n$d_str");
return '';
} elsif ($e && $n) {
($lat, $lon) = mySociety::GeoUtil::national_grid_to_wgs84($e, $n, 'G');
} elsif ($pc) {
my $error;
try {
($e, $n, $error) = FixMyStreet::Geocode::lookup($pc, $q);
} catch Error::Simple with {
$error = shift;
};
unless ($error) {
print $q->redirect(-location => "$base/rss/n/$e,$n$d_str");
}
return '';
} else {
die "Missing E/N, x/y, lat/lon, or postcode parameter in RSS feed";
}
my $qs = '?e=' . int($e) . ';n=' . int($n);
if ($d) {
$qs .= ";d=$d";
$d = 100 if $d > 100;
} else {
$d = mySociety::Gaze::get_radius_containing_population($lat, $lon, 200000);
$d = int($d*10+0.5)/10;
}
my $xsl = Cobrand::feed_xsl($cobrand);
return FixMyStreet::Alert::generate_rss('local_problems', $xsl, $qs, [$e, $n, $d], undef, $cobrand, $q);
}
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