+ # Its a zip code - ask geocoder.us
+ # (They have a non commerical use api)
+ Net::HTTP.start('rpc.geocoder.us') do |http|
+ resp = http.get("/service/csv?zip=#{postcode}")
+ if resp.body.match(/couldn't find this zip/)
+ redirect_to "/index.html?error=invalid_zip_code"
+ return
+ end
+ data = resp.body.split(/, /) # lat,long,town,state,zip
+ lat = data[0]
+ lon = data[1]
+ redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+ end
+ elsif postcode.match(/^([A-Z]{1,2}\d+[A-Z]?\s*\d[A-Z]{2})/)
+ # It matched our naive UK postcode regexp
+ # Ask npemap to do a combined npemap + freethepostcode search
+ Net::HTTP.start('www.npemap.org.uk') do |http|
+ resp = http.get("/cgi/geocoder.fcgi?format=text&postcode=#{escaped_postcode}")
+ dataline = resp.body.split(/\n/)[1]
+ data = dataline.split(/,/) # easting,northing,postcode,lat,long
+ lat = data[3]
+ lon = data[4]
+ redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+ end
+ elsif postcode.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d/)
+ # It's a canadian postcode
+ # Ask geocoder.ca (note - they have a per-day limit)
+ postcode = postcode.sub(/\s/,'')
+ Net::HTTP.start('geocoder.ca') do |http|
+ resp = http.get("?geoit=XML&postal=#{postcode}")
+ data_lat = resp.body.slice(/latt>.*?</)
+ data_lon = resp.body.slice(/longt>.*?</)
+ lat = data_lat.split(/[<>]/)[1]
+ lon = data_lon.split(/[<>]/)[1]
+ redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+ end