Add support for authenticated media

main.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	_ "embed"
+	"net/http"
 	"sync"
 
 	"go.mau.fi/util/configupgrade"
@@ -105,6 +106,9 @@ func (br *DiscordBridge) Start() {
 	if br.Config.Bridge.Provisioning.SharedSecret != "disable" {
 		br.provisioning = newProvisioningAPI(br)
 	}
+	if br.Config.Bridge.PublicAddress != "" {
+		br.AS.Router.HandleFunc("/mautrix-discord/avatar/{server}/{mediaID}/{checksum}", br.serveMediaProxy).Methods(http.MethodGet)
+	}
 	br.DMA = newDirectMediaAPI(br)
 	br.WaitWebsocketConnected()
 	go br.startUsers()