feat(browser): add Camofox local anti-detection browser backend (#4008)

Camofox-browser is a self-hosted Node.js server wrapping Camoufox (Firefox fork with C++ fingerprint spoofing). When CAMOFOX_URL is set, all 11 browser tools route through the Camofox REST API instead of the agent-browser CLI. Maps 1:1 to the existing browser tool interface: - Navigate, snapshot, click, type, scroll, back, press, close - Get images, vision (screenshot + LLM analysis) - Console (returns empty with note — camofox limitation) Setup: npm start in camofox-browser dir, or docker run -p 9377:9377 Then: CAMOFOX_URL=http://localhost:9377 in ~/.hermes/.env Advantages over Browserbase (cloud): - Free (no per-session API costs) - Local (zero network latency for browser ops) - Anti-detection at C++ level (bypasses Cloudflare/Google bot detection) - Works offline, Docker-ready Files: - tools/browser_camofox.py: Full REST backend (~400 lines) - tools/browser_tool.py: Routing at each tool function - hermes_cli/config.py: CAMOFOX_URL env var entry - tests/tools/test_browser_camofox.py: 20 tests
2026-03-30 13:18:42 -07:00
parent 7dac75f2ae
commit 950f69475f
7 changed files with 889 additions and 3 deletions
--- a/tests/tools/test_browser_camofox.py
+++ b/tests/tools/test_browser_camofox.py
@@ -0,0 +1,290 @@
+"""Tests for the Camofox browser backend."""
+
+import json
+import os
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from tools.browser_camofox import (
+    camofox_back,
+    camofox_click,
+    camofox_close,
+    camofox_console,
+    camofox_get_images,
+    camofox_navigate,
+    camofox_press,
+    camofox_scroll,
+    camofox_snapshot,
+    camofox_type,
+    camofox_vision,
+    check_camofox_available,
+    cleanup_all_camofox_sessions,
+    is_camofox_mode,
+)
+
+
+# ---------------------------------------------------------------------------
+# Configuration detection
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxMode:
+    def test_disabled_by_default(self, monkeypatch):
+        monkeypatch.delenv("CAMOFOX_URL", raising=False)
+        assert is_camofox_mode() is False
+
+    def test_enabled_when_url_set(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        assert is_camofox_mode() is True
+
+    def test_health_check_unreachable(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:19999")
+        assert check_camofox_available() is False
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+
+def _mock_response(status=200, json_data=None):
+    resp = MagicMock()
+    resp.status_code = status
+    resp.json.return_value = json_data or {}
+    resp.content = b"\x89PNG\r\n\x1a\nfake"
+    resp.raise_for_status = MagicMock()
+    return resp
+
+
+# ---------------------------------------------------------------------------
+# Navigate
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxNavigate:
+    @patch("tools.browser_camofox.requests.post")
+    def test_creates_tab_on_first_navigate(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab1", "url": "https://example.com"})
+
+        result = json.loads(camofox_navigate("https://example.com", task_id="t1"))
+        assert result["success"] is True
+        assert result["url"] == "https://example.com"
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_navigates_existing_tab(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        # First call creates tab
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab2", "url": "https://a.com"})
+        camofox_navigate("https://a.com", task_id="t2")
+
+        # Second call navigates
+        mock_post.return_value = _mock_response(json_data={"ok": True, "url": "https://b.com"})
+        result = json.loads(camofox_navigate("https://b.com", task_id="t2"))
+        assert result["success"] is True
+        assert result["url"] == "https://b.com"
+
+    def test_connection_error_returns_helpful_message(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:19999")
+        result = json.loads(camofox_navigate("https://example.com", task_id="t_err"))
+        assert result["success"] is False
+        assert "Cannot connect" in result["error"]
+
+
+# ---------------------------------------------------------------------------
+# Snapshot
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxSnapshot:
+    def test_no_session_returns_error(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        result = json.loads(camofox_snapshot(task_id="no_such_task"))
+        assert result["success"] is False
+        assert "browser_navigate" in result["error"]
+
+    @patch("tools.browser_camofox.requests.post")
+    @patch("tools.browser_camofox.requests.get")
+    def test_returns_snapshot(self, mock_get, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        # Create session
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab3", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t3")
+
+        # Return snapshot
+        mock_get.return_value = _mock_response(json_data={
+            "snapshot": "- heading \"Test\" [e1]\n- button \"Submit\" [e2]",
+            "refsCount": 2,
+        })
+        result = json.loads(camofox_snapshot(task_id="t3"))
+        assert result["success"] is True
+        assert "[e1]" in result["snapshot"]
+        assert result["element_count"] == 2
+
+
+# ---------------------------------------------------------------------------
+# Click / Type / Scroll / Back / Press
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxInteractions:
+    @patch("tools.browser_camofox.requests.post")
+    def test_click(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab4", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t4")
+
+        mock_post.return_value = _mock_response(json_data={"ok": True, "url": "https://x.com"})
+        result = json.loads(camofox_click("@e5", task_id="t4"))
+        assert result["success"] is True
+        assert result["clicked"] == "e5"
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_type(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab5", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t5")
+
+        mock_post.return_value = _mock_response(json_data={"ok": True})
+        result = json.loads(camofox_type("@e3", "hello world", task_id="t5"))
+        assert result["success"] is True
+        assert result["typed"] == "hello world"
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_scroll(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab6", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t6")
+
+        mock_post.return_value = _mock_response(json_data={"ok": True})
+        result = json.loads(camofox_scroll("down", task_id="t6"))
+        assert result["success"] is True
+        assert result["scrolled"] == "down"
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_back(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab7", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t7")
+
+        mock_post.return_value = _mock_response(json_data={"ok": True, "url": "https://prev.com"})
+        result = json.loads(camofox_back(task_id="t7"))
+        assert result["success"] is True
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_press(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab8", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t8")
+
+        mock_post.return_value = _mock_response(json_data={"ok": True})
+        result = json.loads(camofox_press("Enter", task_id="t8"))
+        assert result["success"] is True
+        assert result["pressed"] == "Enter"
+
+
+# ---------------------------------------------------------------------------
+# Close
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxClose:
+    @patch("tools.browser_camofox.requests.delete")
+    @patch("tools.browser_camofox.requests.post")
+    def test_close_session(self, mock_post, mock_delete, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab9", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t9")
+
+        mock_delete.return_value = _mock_response(json_data={"ok": True})
+        result = json.loads(camofox_close(task_id="t9"))
+        assert result["success"] is True
+        assert result["closed"] is True
+
+    def test_close_nonexistent_session(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        result = json.loads(camofox_close(task_id="nonexistent"))
+        assert result["success"] is True
+
+
+# ---------------------------------------------------------------------------
+# Console (limited support)
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxConsole:
+    def test_console_returns_empty_with_note(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        result = json.loads(camofox_console(task_id="t_console"))
+        assert result["success"] is True
+        assert result["total_messages"] == 0
+        assert "not available" in result["note"]
+
+
+# ---------------------------------------------------------------------------
+# Images
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxGetImages:
+    @patch("tools.browser_camofox.requests.post")
+    @patch("tools.browser_camofox.requests.get")
+    def test_get_images(self, mock_get, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab10", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t10")
+
+        mock_get.return_value = _mock_response(json_data={
+            "images": [{"src": "https://x.com/img.png", "alt": "Logo"}],
+        })
+        result = json.loads(camofox_get_images(task_id="t10"))
+        assert result["success"] is True
+        assert result["count"] == 1
+        assert result["images"][0]["src"] == "https://x.com/img.png"
+
+
+# ---------------------------------------------------------------------------
+# Routing integration — verify browser_tool routes to camofox
+# ---------------------------------------------------------------------------
+
+
+class TestBrowserToolRouting:
+    """Verify that browser_tool.py delegates to camofox when CAMOFOX_URL is set."""
+
+    @patch("tools.browser_camofox.requests.post")
+    def test_browser_navigate_routes_to_camofox(self, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab_rt", "url": "https://example.com"})
+
+        from tools.browser_tool import browser_navigate
+        # Bypass SSRF check for test URL
+        with patch("tools.browser_tool._is_safe_url", return_value=True):
+            result = json.loads(browser_navigate("https://example.com", task_id="t_route"))
+        assert result["success"] is True
+
+    def test_check_requirements_passes_with_camofox(self, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        from tools.browser_tool import check_browser_requirements
+        assert check_browser_requirements() is True
+
+
+# ---------------------------------------------------------------------------
+# Cleanup helper
+# ---------------------------------------------------------------------------
+
+
+class TestCamofoxCleanup:
+    @patch("tools.browser_camofox.requests.post")
+    @patch("tools.browser_camofox.requests.delete")
+    def test_cleanup_all(self, mock_delete, mock_post, monkeypatch):
+        monkeypatch.setenv("CAMOFOX_URL", "http://localhost:9377")
+        mock_post.return_value = _mock_response(json_data={"tabId": "tab_c", "url": "https://x.com"})
+        camofox_navigate("https://x.com", task_id="t_cleanup")
+
+        mock_delete.return_value = _mock_response(json_data={"ok": True})
+        cleanup_all_camofox_sessions()
+
+        # Session should be gone
+        result = json.loads(camofox_snapshot(task_id="t_cleanup"))
+        assert result["success"] is False