Imports code.google.com/p/freetype-go/freetype code.google.com/p/rsc/appfs/fs code.google.com/p/rsc/gf256 code.google.com/p/rsc/qr code.google.com/p/rsc/qr/coding code.google.com/p/rsc/qr/web/resize Standard library imports bytes crypto/md5 encoding/base64 encoding/json fmt html/template image image/color image/draw image/gif image/jpeg image/png io math/rand net/http net/url os sort strconv strings time