Add Zurich geocoder (and allow geocoder choice to be picked in config).

1 files changed, 90 insertions, 0 deletions

diff --git a/perllib/FixMyStreet/Geocode/Zurich.pm b/perllib/FixMyStreet/Geocode/Zurich.pm
new file mode 100644
index 000000000..9cffc7a32
--- /dev/null
+++ b/perllib/FixMyStreet/Geocode/Zurich.pm
@@ -0,0 +1,90 @@
+#!/usr/bin/perl
+#
+# 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 Geo::Coordinates::CH1903;
+use SOAP::Lite;
+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/";
+
+    # 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. 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 $search = SOAP::Data->name('search' => $s)->type('');
+    my $count = SOAP::Data->name('count' => 10)->type('');
+    my $result = $soap->call($method, $security, $search, $count);
+    $result = $result->result;
+
+    if (!$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);
+    }
+
+    return { latitude => $latitude, longitude => $longitude } if scalar @valid_locations == 1;
+    return { error => $error };
+}
+
+1;
+