Merge pull request #44 from Ice3man543/unwanted-char-fix

Fix for  < character error

libsubfinder/sources/riddler/riddler.go

@@ -14,6 +14,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"errors"
 
 	"github.com/Ice3man543/subfinder/libsubfinder/helper"
 )
@@ -68,6 +69,12 @@ func Query(state *helper.State, ch chan helper.Result) {
 		return
 	}
 
+	if auth.Response.User.Authentication_token == "" {
+		result.Error = errors.New("failed to get authentication token")
+		ch <- result
+		return
+	}
+
 	data = []byte(`{"query":"pld:` + state.Domain + `", "output":"host", "limit":500}`)
 
 	req, err = http.NewRequest("POST", "https://riddler.io/api/search", bytes.NewBuffer(data))