func createAndSaveSignature(writer http.ResponseWriter, req util.SignatureRequest, generator generators.BaseGenerator) error {
// Create the signature image
sig, err := generator.CreateSignature(req.Req)
if err != nil {
return err
}
// note: queue saving if it causes performance issues?
// Save the image to disk with the given hash as the file name
saveImage(req.Hash, sig.Image)
return nil
}
func registerGenerator(generator generators.BaseGenerator) {
goji.Get(generator.Url(), func(c web.C, writer http.ResponseWriter, request *http.Request) {
parsedReq, err := generator.ParseSignatureRequest(c, request)
if err != nil {
writeTextResponse(writer, "Failed to parse the request: "+err.Error())
return
}
hash := finalizeHash(generator.Name(), generator.CreateHash(parsedReq))
req := util.SignatureRequest{parsedReq, hash}
serveSignature(c, writer, request, req, generator)
})
formUrl := generator.FormUrl()
if formUrl != "" {
goji.Post(formUrl, func(c web.C, writer http.ResponseWriter, request *http.Request) {
generator.HandleForm(c, writer, request)
})
}
}