fix webmention validation content-type with charset would fail

app/pingback/handler.go

@@ -8,7 +8,6 @@ import (
 	"brainbaking.com/go-jamming/rest"
 	"encoding/xml"
 	"fmt"
-	"github.com/rs/zerolog/log"
 	"io/ioutil"
 	"net/http"
 )
@@ -94,7 +93,8 @@ func pingbackError(w http.ResponseWriter, err error) {
         </value>
     </fault>
 </methodResponse>`
-	log.Error().Err(err).Msg("Pingback receive went wrong")
+	// No longer interested in pingback errors, these are 99.9% badly formatted spam that clog up syslog
+	// log.Error().Err(err).Msg("Pingback receive went wrong")
 	w.WriteHeader(200)
 	w.Write([]byte(xml))
 }

app/webmention/validate.go

@@ -29,7 +29,7 @@ func isValidTargetUrl(url string, httpClient rest.Client) bool {
 }
 
 func validate(r rest.HttpReq, h rest.HttpHeader, conf *common.Config) bool {
-	return h.Get("Content-Type") == "application/x-www-form-urlencoded" &&
+	return strings.HasPrefix(h.Get("Content-Type"), "application/x-www-form-urlencoded") &&
 		isValidUrl(r.FormValue("source")) &&
 		isValidUrl(r.FormValue("target")) &&
 		r.FormValue("source") != r.FormValue("target") &&

app/webmention/validate_test.go

@@ -56,6 +56,13 @@ func TestValidate(t *testing.T) {
 		contentType string
 		expected    bool
 	}{
+		{
+			"is valid if encoded as form including the charset",
+			"https://brainbaking.com/bla1",
+			"https://jefklakscodex.com/bla",
+			"application/x-www-form-urlencoded; charset=utf-8",
+			true,
+		},
 		{
 			"is valid if source and target https urls",
 			"http://brainbaking.com/bla1",