initial commit

tests/integration/webhook_sticker_bypass_test.go

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+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+)
+
+func TestWebhook_StickerBypass(t *testing.T) {
+	client := newTestClient(t)
+	user := createTestAccount(t, client)
+	ensureSessionStarted(t, client, user.Token)
+
+	guild := createGuild(t, client, user.Token, "Webhook Sticker Test Guild")
+	guildID := parseSnowflake(t, guild.ID)
+
+	resp, err := client.getWithAuth(fmt.Sprintf("/guilds/%d", guildID), user.Token)
+	if err != nil {
+		t.Fatalf("failed to get guild: %v", err)
+	}
+	var guildData struct {
+		SystemChannelID string `json:"system_channel_id"`
+	}
+	decodeJSONResponse(t, resp, &guildData)
+	resp.Body.Close()
+	systemChannelID := parseSnowflake(t, guildData.SystemChannelID)
+
+	webhookPayload := map[string]any{
+		"name": "Sticker Test Webhook",
+	}
+
+	webhookResp, err := client.postJSONWithAuth(
+		fmt.Sprintf("/channels/%d/webhooks", systemChannelID),
+		webhookPayload,
+		user.Token,
+	)
+	if err != nil {
+		t.Fatalf("failed to create webhook: %v", err)
+	}
+	defer webhookResp.Body.Close()
+	assertStatus(t, webhookResp, http.StatusOK)
+
+	var webhook struct {
+		ID    string `json:"id"`
+		Token string `json:"token"`
+	}
+	decodeJSONResponse(t, webhookResp, &webhook)
+
+	t.Run("webhook messages typically do not support stickers", func(t *testing.T) {
+
+		messagePayload := map[string]any{
+			"content":     "Webhook sticker test",
+			"sticker_ids": []string{"999999999999999999"},
+		}
+
+		executeResp, err := client.postJSON(
+			fmt.Sprintf("/webhooks/%s/%s", webhook.ID, webhook.Token),
+			messagePayload,
+		)
+		if err != nil {
+			t.Fatalf("failed to execute webhook: %v", err)
+		}
+		defer executeResp.Body.Close()
+
+		if executeResp.StatusCode != http.StatusOK &&
+			executeResp.StatusCode != http.StatusNoContent &&
+			executeResp.StatusCode != http.StatusBadRequest {
+			t.Errorf("expected webhook with sticker_ids to either succeed (ignoring stickers) or return 400, got %d", executeResp.StatusCode)
+		}
+	})
+}