50 lines
1.6 KiB
PL/PgSQL
50 lines
1.6 KiB
PL/PgSQL
-- Interface of the server extension
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CREATE OR REPLACE FUNCTION cdb_geocoder_server.cdb_geocode_ipaddress_point(user_id name, user_config json, geocoder_config json, ip text)
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RETURNS Geometry AS $$
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plpy.debug('Entering _cdb_geocode_ipaddress_point')
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plpy.debug('user_id = %s' % user_id)
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#--TODO: rate limiting check
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#--TODO: quota check
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#-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
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plan = plpy.prepare("SELECT cdb_geocoder_server._cdb_geocode_ipaddress_point($1) AS point", ["TEXT"])
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rv = plpy.execute(plan, [ip], 1)
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plpy.debug('Returning from _cdb_geocode_ipaddress_point')
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return rv[0]["point"]
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$$ LANGUAGE plpythonu;
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--------------------------------------------------------------------------------
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-- Implementation of the server extension
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-- Note: these functions depend on the cdb_geocoder extension
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CREATE OR REPLACE FUNCTION cdb_geocoder_server._cdb_geocode_ipaddress_point(ip text)
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RETURNS Geometry AS $$
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DECLARE
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ret Geometry;
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new_ip INET;
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BEGIN
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BEGIN
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IF family(ip::inet) = 6 THEN
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new_ip := ip::inet;
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ELSE
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new_ip := ('::ffff:' || ip)::inet;
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END IF;
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EXCEPTION WHEN OTHERS THEN
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SELECT NULL as geom INTO ret;
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RETURN ret;
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END;
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WITH
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ips AS (SELECT ip s, new_ip net),
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matches AS (SELECT s, (SELECT the_geom FROM ip_address_locations WHERE network_start_ip <= ips.net ORDER BY network_start_ip DESC LIMIT 1) geom FROM ips)
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SELECT geom INTO ret
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FROM matches;
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RETURN ret;
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END
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$$ LANGUAGE plpgsql;
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