Imports github.com/disintegration/imaging github.com/golang/glog github.com/gregjones/httpcache golang.org/x/image/webp willnorris.com/go/gifresize willnorris.com/go/imageproxy/third_party/http Standard library imports bufio bytes crypto/hmac crypto/sha256 encoding/base64 fmt image/gif image/jpeg image/png io io/ioutil net/http net/url regexp strconv strings time image