add dc img proxy and enable it for welcome bot

.gitlab-ci.yml

@@ -63,6 +63,12 @@ domaincheckbot:
     GO_CMD: domaincheckbot
   <<: *docker_build
 
+dcimgproxy:
+  stage: build
+  variables:
+    GO_CMD: dcimgproxy
+  <<: *docker_build
+
 pages:
   stage: build
   script:

cmd/dcimgproxy/main.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"github.com/disgoorg/disgo"
+	"github.com/disgoorg/disgo/bot"
+	"github.com/disgoorg/disgo/cache"
+	"github.com/disgoorg/log"
+	"github.com/disgoorg/snowflake/v2"
+	"golang.org/x/exp/slog"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+)
+
+var (
+	token       = os.Getenv("disgo_token")
+	avatarCache map[snowflake.ID][]byte
+)
+
+func init() {
+	avatarCache = make(map[snowflake.ID][]byte)
+}
+
+func main() {
+	mux := http.NewServeMux()
+
+	client, err := disgo.New(token, bot.WithCacheConfigOpts(
+		cache.WithCaches(
+			cache.FlagsAll,
+		),
+	),
+	)
+	if err != nil {
+		slog.Error(err.Error())
+		return
+	}
+	rest := client.Rest()
+
+	mux.HandleFunc("/api/v1/discord/avatar/", func(w http.ResponseWriter, r *http.Request) {
+		flake, err := snowflake.Parse(strings.TrimPrefix(r.URL.Path, "/api/v1/discord/avatar/"))
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		avatar, ok := avatarCache[flake]
+		if !ok {
+			user, err := rest.GetUser(flake)
+			if err != nil {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			avatarUrl := user.EffectiveAvatarURL()
+			res, err := http.Get(avatarUrl)
+			if err != nil || res.StatusCode != http.StatusOK {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			// cache entry
+			avatarCache[flake], err = io.ReadAll(res.Body)
+			avatar = avatarCache[flake]
+			if err != nil {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+		w.WriteHeader(http.StatusOK)
+		w.Header().Add("Content-Type", http.DetectContentType(avatar))
+		_, _ = w.Write(avatar)
+		return
+	})
+
+	log.Fatal(http.ListenAndServe(":8080", mux))
+}

cmd/welcomebot/event/listener.go

@@ -30,7 +30,8 @@ func JoinEvent(event *events.GuildMemberJoin) {
 			SetEmbeds(discord.NewEmbedBuilder().
 				SetColor(16068661).
 				SetTimestamp(time.Now()).
-				SetThumbnail(user.EffectiveAvatarURL(discord.WithSize(1024))).
+				//SetThumbnail(user.EffectiveAvatarURL(discord.WithSize(1024))).
+				SetThumbnail(fmt.Sprintf("https://app11.rvo.one/api/v1/discord/avatar/%s", user.ID.String())).
 				AddField(
 					fmt.Sprintf("Welcome to the %v Server", guild.Name),
 					fmt.Sprintf("Welcome %v (`%v`) on %v 🍎", user.Mention(), user.Username, guild.Name), false).