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# FixMyStreet::Geocode::Google
# The geocoding functions for FixMyStreet.
#
# Copyright (c) 2010 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org; WWW: http://www.mysociety.org/
package FixMyStreet::Geocode::Google;
use strict;
use Utils;
use URI::Escape;
# string STRING CONTEXT
# Looks up on Google Maps API, and caches, a user-inputted location.
# Returns array of (LAT, LON, ERROR), where ERROR is either undef, a string, or
# an array of matches if there are more than one. The information in the query
# may be used to disambiguate the location in cobranded versions of the site.
sub string {
my ( $s, $c ) = @_;
my $params = $c->cobrand->disambiguate_location($s);
my $components = "";
# For some reason adding gl=uk is no longer sufficient to make google
# think we are in the UK for some locations so we explicitly tell Google
# the country.
if ($c->cobrand->country eq 'GB') {
$components = "country:GB";
}
$s = FixMyStreet::Geocode::escape($s);
my $url = 'https://maps.googleapis.com/maps/api/geocode/json?address=' . $s;
$url .= '&bounds=' . $params->{bounds}[0] . ',' . $params->{bounds}[1]
. '|' . $params->{bounds}[2] . ',' . $params->{bounds}[3]
if $params->{bounds};
if ($params->{google_country}) {
$url .= '®ion=' . $params->{google_country};
} elsif ($params->{country}) {
$url .= '®ion=' . $params->{country};
}
if ($params->{components}) {
$components .= ($components ? '|' : '') . URI::Escape::uri_escape_utf8($params->{components});
}
$url .= '&language=' . $params->{lang} if $params->{lang};
$url .= '&components=' . $components if $components;
my $args = 'key=' . FixMyStreet->config('GOOGLE_MAPS_API_KEY');
my $js = FixMyStreet::Geocode::cache('google', $url, $args, qr/"status"\s*:\s*"(OVER_QUERY_LIMIT|REQUEST_DENIED|INVALID_REQUEST|UNKNOWN_ERROR)"/);
if (!$js) {
return { error => _('Sorry, we could not parse that location. Please try again.') };
}
return unless $js->{status} eq 'OK';
my $results = $js->{results};
my ( $error, @valid_locations, $latitude, $longitude );
foreach (@$results) {
my $address = $_->{formatted_address};
next unless $c->cobrand->geocoded_string_check( $address );
( $longitude, $latitude ) =
map { Utils::truncate_coordinate($_) }
($_->{geometry}{location}{lng}, $_->{geometry}{location}{lat});
push (@$error, {
address => $address,
latitude => $latitude,
longitude => $longitude
});
push (@valid_locations, $_);
}
return { latitude => $latitude, longitude => $longitude } if scalar @valid_locations == 1;
return { error => $error };
}
1;
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