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# FixMyStreet::Geocode::Zurich
# Geocoding with Zurich web service.
#
# Thanks to http://msdn.microsoft.com/en-us/library/ms995764.aspx
# and http://noisemore.wordpress.com/2009/03/19/perl-soaplite-wsse-web-services-security-soapheader/
# for SOAP::Lite pointers
#
# Copyright (c) 2012 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org; WWW: http://www.mysociety.org/
package FixMyStreet::Geocode::Zurich;
use strict;
use Digest::MD5 qw(md5_hex);
use File::Path ();
use Geo::Coordinates::CH1903;
use Storable;
use mySociety::Locale;
my ($soap, $method, $security);
sub setup_soap {
return if $soap;
# Variables for the SOAP web service
my $geocoder = FixMyStreet->config('GEOCODER');
my $url = $geocoder->{url};
my $username = $geocoder->{username};
my $password = $geocoder->{password};
my $attr = 'http://ch/geoz/fixmyzuerich/service';
my $action = "$attr/IFixMyZuerich/";
require SOAP::Lite;
# Set up the SOAP handler
$security = SOAP::Header->name("Security")->attr({
'mustUnderstand' => 'true',
'xmlns' => 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd'
})->value(
\SOAP::Header->name(
"UsernameToken" => \SOAP::Header->value(
SOAP::Header->name('Username', $username),
SOAP::Header->name('Password', $password)
)
)
);
$soap = SOAP::Lite->on_action( sub { $action . $_[1]; } )->proxy($url);
$method = SOAP::Data->name('getLocation')->attr({ xmlns => $attr });
}
# string STRING CONTEXT
# Looks up on Zurich web service 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.
# If there is no ambiguity, returns only a {lat,long} hash, unless allow_single_match_string is true
# (because the auto-complete use of this (in /around) should send the matched name even though it's not ambiguous).
#
# The information in the query may be used to disambiguate the location in cobranded
# versions of the site.
sub string {
my ( $s, $c ) = @_;
setup_soap();
my $cache_dir = FixMyStreet->config('GEO_CACHE') . 'zurich/';
my $cache_file = $cache_dir . md5_hex($s);
my $result;
if (-s $cache_file) {
$result = retrieve($cache_file);
} else {
my $search = SOAP::Data->name('search' => $s)->type('');
my $count = SOAP::Data->name('count' => 10)->type('');
eval {
$result = $soap->call($method, $security, $search, $count);
};
if ($@) {
warn $@ if FixMyStreet->config('STAGING_SITE');
return { error => 'The geocoder appears to be down.' };
}
$result = $result->result;
File::Path::mkpath($cache_dir);
store $result, $cache_file if $result;
}
if (!$result || !$result->{Location}) {
return { error => _('Sorry, we could not parse that location. Please try again.') };
}
my $results = $result->{Location};
$results = [ $results ] unless ref $results eq 'ARRAY';
my ( $error, @valid_locations, $latitude, $longitude );
foreach (@$results) {
($latitude, $longitude) = Geo::Coordinates::CH1903::to_latlon($_->{easting}, $_->{northing});
mySociety::Locale::in_gb_locale {
push (@$error, {
address => $_->{text},
latitude => sprintf('%0.6f', $latitude),
longitude => sprintf('%0.6f', $longitude)
});
};
push (@valid_locations, $_);
last if lc($_->{text}) eq lc($s);
}
if (scalar @valid_locations == 1 && ! $c->stash->{allow_single_geocode_match_strings} ) {
return { latitude => $latitude, longitude => $longitude };
}
return { error => $error };
}
1;
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