321 lines
12 KiB
Python
321 lines
12 KiB
Python
"""Canonical icon, PWA, and fail-closed Hermes WebUI identity contracts."""
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from __future__ import annotations
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import hashlib
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import importlib.util
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import json
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import os
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from pathlib import Path
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import shutil
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import struct
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import subprocess
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import sys
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from urllib.parse import urlsplit
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import pytest
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ROOT = Path(__file__).resolve().parents[2]
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DOCKERFILES = ROOT / "dockerfiles"
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FIXTURE = ROOT / "testing/fixtures/hermes-webui-0.52.181"
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AGENT_FIXTURE = ROOT / "testing/fixtures/hermes-agent"
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ATLAS_PATCHER = DOCKERFILES / "hermes-webui-atlas-patch.py"
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BRAND_PATCHER = DOCKERFILES / "hermes-webui-brand-patch.py"
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MANIFEST_PATCHER = DOCKERFILES / "hermes-webui-manifest-patch.py"
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SMOKE = DOCKERFILES / "hermes-webui-smoke.py"
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ASSETS = DOCKERFILES / "hermes-webui-assets"
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MANIFEST = DOCKERFILES / "hermes-webui-manifest.json"
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BRAND_CSS = DOCKERFILES / "hermes-webui-brand.css"
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EXPECTED_HASHES = {
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"hermes-agent.ico": "aefe65e6574e6f46d3382588f46c508e1b3f3b3c9ce3dec6d335403a5374add9",
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"hermes-agent-192.png": "0e4102cc715372058dd6ab55e9cde2567e46fee5ab6557b564cdd212ccd2616f",
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"hermes-agent-512.png": "6661e5ca0ecc690af213b9f85f961541e6d3d0e36946ede9d3c2c97dfbd3c23d",
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}
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def _load(path: Path, name: str):
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spec = importlib.util.spec_from_file_location(name, path)
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assert spec is not None and spec.loader is not None
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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def _patched_fixture(tmp_path: Path) -> Path:
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target = tmp_path / "hermes-webui"
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agent_target = tmp_path / "hermes-agent"
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shutil.copytree(FIXTURE, target)
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shutil.copytree(AGENT_FIXTURE, agent_target)
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env = os.environ.copy()
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env["HERMES_WEBUI_PATCH_ROOT"] = str(target)
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env["HERMES_AGENT_PATCH_ROOT"] = str(agent_target)
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env["HERMES_WEBUI_MANIFEST_SOURCE"] = str(MANIFEST)
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for patcher in (ATLAS_PATCHER, BRAND_PATCHER, MANIFEST_PATCHER):
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subprocess.run(
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[sys.executable, str(patcher)],
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cwd=ROOT,
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env=env,
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check=True,
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capture_output=True,
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text=True,
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)
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return target
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def _png_size(path: Path) -> tuple[int, int]:
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payload = path.read_bytes()
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assert payload.startswith(b"\x89PNG\r\n\x1a\n")
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assert payload[12:16] == b"IHDR"
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return struct.unpack(">II", payload[16:24])
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def test_canonical_icon_provenance_format_and_pwa_derivatives() -> None:
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"""The supplied persona is tracked exactly and only resized for PWA use."""
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for name, expected in EXPECTED_HASHES.items():
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payload = (ASSETS / name).read_bytes()
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assert hashlib.sha256(payload).hexdigest() == expected
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ico = (ASSETS / "hermes-agent.ico").read_bytes()
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reserved, image_type, count = struct.unpack_from("<HHH", ico)
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assert (reserved, image_type, count) == (0, 1, 3)
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sizes = set()
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for index in range(count):
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offset = 6 + index * 16
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width, height, _colors, _reserved, planes, depth, length, start = (
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struct.unpack_from("<BBBBHHII", ico, offset)
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)
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sizes.add((width or 256, height or 256))
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assert (planes, depth) == (1, 32)
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assert ico[start : start + 8] == b"\x89PNG\r\n\x1a\n"
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assert start + length <= len(ico)
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assert sizes == {(16, 16), (32, 32), (48, 48)}
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assert _png_size(ASSETS / "hermes-agent-192.png") == (192, 192)
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assert _png_size(ASSETS / "hermes-agent-512.png") == (512, 512)
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provenance = (ASSETS / "SOURCE.md").read_text(encoding="utf-8")
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assert "/opt/hermes/web/public/favicon.ico" in provenance
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assert EXPECTED_HASHES["hermes-agent.ico"] in provenance
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assert "LANCZOS" in provenance
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def test_manifest_is_installable_scoped_and_uses_only_canonical_persona() -> None:
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"""The app has both mandatory icon sizes and no remote or secret-bearing data."""
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manifest = json.loads(MANIFEST.read_text(encoding="utf-8"))
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assert manifest["id"] == "./"
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assert manifest["name"] == "Hermes Chat"
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assert manifest["short_name"] == "Hermes"
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assert manifest["start_url"].startswith("./")
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assert manifest["scope"] == "./"
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assert manifest["display"] == "standalone"
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assert manifest["background_color"] == "#070A12"
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assert manifest["theme_color"] == "#0D1420"
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icons = manifest["icons"]
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assert {(icon["sizes"], icon["type"]) for icon in icons} == {
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("192x192", "image/png"),
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("512x512", "image/png"),
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}
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assert {icon["src"] for icon in icons} == {
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"static/hermes-agent-192.png",
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"static/hermes-agent-512.png",
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}
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assert all(icon["purpose"] == "any" for icon in icons)
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serialized = json.dumps(manifest).lower()
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assert "http:" not in serialized and "https:" not in serialized
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assert "secret" not in serialized and "token" not in serialized
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def test_production_patchers_apply_title_icons_theme_and_cache_contract(
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tmp_path: Path,
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) -> None:
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"""Exercise the shipped patchers against pinned upstream source fragments."""
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target = _patched_fixture(tmp_path)
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index = (target / "static/index.html").read_text(encoding="utf-8")
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worker = (target / "static/sw.js").read_text(encoding="utf-8")
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assert index.count("<title>Hermes Chat</title>") == 1
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assert index.count('id="hermesBrandStyles"') == 1
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assert 'href="static/hermes-agent.ico"' in index
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assert 'sizes="192x192" href="static/hermes-agent-192.png"' in index
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assert 'sizes="512x512" href="static/hermes-agent-512.png"' in index
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assert '<meta name="apple-mobile-web-app-title" content="Hermes Chat">' in index
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assert '<meta name="theme-color" content="#0D1420"' in index
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assert 'id="appTitlebarTitle">Hermes Chat</span>' in index
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assert '<img src="static/hermes-agent-192.png" alt="">' in index
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assert "favicon.svg" not in index
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assert "favicon-32.png" not in index
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assert worker.count("'./static/hermes-brand.css' + VQ") == 1
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for name in EXPECTED_HASHES:
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assert worker.count(f"'./static/{name}'") == 1
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assert "favicon.svg" not in worker
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assert "favicon-32.png" not in worker
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def test_brand_patch_rejects_upstream_drift_before_partial_success(
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tmp_path: Path,
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) -> None:
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"""A changed pinned title/favicon context cannot silently ship partial branding."""
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target = _patched_fixture(tmp_path)
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index = target / "static/index.html"
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index.write_text(
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index.read_text(encoding="utf-8").replace(
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"<title>Hermes Chat</title>", "<title>Upstream changed</title>", 1
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),
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encoding="utf-8",
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)
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env = os.environ.copy()
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env["HERMES_WEBUI_PATCH_ROOT"] = str(target)
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result = subprocess.run(
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[sys.executable, str(BRAND_PATCHER)],
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cwd=ROOT,
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env=env,
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check=False,
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capture_output=True,
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text=True,
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)
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assert result.returncode != 0
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assert "brand patch context changed" in result.stderr
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def test_manifest_patch_rejects_drift_before_wholesale_replacement(
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tmp_path: Path,
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) -> None:
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"""The branded file cannot hide a changed manifest in the pinned image."""
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target = tmp_path / "hermes-webui"
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shutil.copytree(FIXTURE, target)
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installed = target / "static/manifest.json"
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installed.write_text(
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installed.read_text(encoding="utf-8").replace(
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'"name": "Hermes"', '"name": "Upstream drift"', 1
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),
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encoding="utf-8",
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)
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before = installed.read_bytes()
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env = os.environ.copy()
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env["HERMES_WEBUI_PATCH_ROOT"] = str(target)
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env["HERMES_WEBUI_MANIFEST_SOURCE"] = str(MANIFEST)
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result = subprocess.run(
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[sys.executable, str(MANIFEST_PATCHER)],
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cwd=ROOT,
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env=env,
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check=False,
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capture_output=True,
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text=True,
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)
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assert result.returncode != 0
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assert "pinned upstream SHA-256 mismatch" in result.stderr
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assert installed.read_bytes() == before
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class _SmokeResponse:
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status = 200
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def __init__(self, body: bytes, url: str) -> None:
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self.body = body
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self.url = url
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def __enter__(self):
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return self
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def __exit__(self, *_args):
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return None
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def read(self) -> bytes:
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return self.body
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def geturl(self) -> str:
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return self.url
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def test_server_smoke_resolves_served_manifest_icons_and_checks_root() -> None:
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"""The image gate validates HTTP responses, not its own source files."""
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module = _load(SMOKE, "hermes_webui_smoke_contract")
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manifest = json.loads(MANIFEST.read_text(encoding="utf-8"))
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root = (
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b'<link href="static/hermes-agent.ico">'
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b'<link href="static/hermes-agent-192.png">'
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b'<link href="static/hermes-agent-512.png">'
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b'<link href="static/hermes-brand.css?v=reviewed">'
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)
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calls = []
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def open_fixture(request, *, timeout):
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assert timeout == 5
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url = request.full_url
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calls.append(url)
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path = urlsplit(url).path
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if path == "/manifest.json":
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return _SmokeResponse(
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json.dumps(manifest).encode(),
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"http://assets.hermes.test/pwa/manifest.json",
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)
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if path == "/":
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return _SmokeResponse(root, url)
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if path in (
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"/pwa/static/hermes-agent-192.png",
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"/pwa/static/hermes-agent-512.png",
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"/static/hermes-agent-192.png",
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):
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return _SmokeResponse(module.PNG_MAGIC + b"fixture", url)
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raise AssertionError(f"unexpected smoke URL: {url}")
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result = module.smoke("http://hermes.test/", opener=open_fixture)
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assert result["manifest"] == "http://assets.hermes.test/pwa/manifest.json"
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assert result["icon_requests"] == 3
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assert calls.count("http://assets.hermes.test/pwa/static/hermes-agent-192.png") == 2
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assert "http://assets.hermes.test/pwa/static/hermes-agent-512.png" in calls
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assert calls.count("http://hermes.test/static/hermes-agent-192.png") == 1
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def test_server_smoke_rejects_unbranded_served_manifest() -> None:
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"""A successful health check cannot mask the upstream PWA identity."""
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module = _load(SMOKE, "hermes_webui_smoke_unbranded")
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def open_upstream(request, *, timeout):
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assert timeout == 5
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payload = (FIXTURE / "static/manifest.json").read_bytes()
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return _SmokeResponse(payload, request.full_url)
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with pytest.raises(RuntimeError, match="not branded"):
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module.smoke("http://hermes.test/", opener=open_upstream)
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def test_brand_css_is_accessible_dark_and_reduced_motion_aware() -> None:
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"""Identity colors retain system controls and disable cosmetic motion."""
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css = BRAND_CSS.read_text(encoding="utf-8")
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dark = css.split(":root.dark {", 1)[1]
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assert "color-scheme: dark" in dark
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assert "--bg: #070a12" in dark
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assert "--text: #e8f1f4" in dark
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assert "--accent: #48cfcc" in dark
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assert "--voice-accent: 72, 207, 204" in css
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assert "--voice-accent-secondary: 76, 164, 205" in css
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assert "@media (prefers-reduced-motion: reduce)" in css
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reduced = css.split("@media (prefers-reduced-motion: reduce)", 1)[1]
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assert "transition: none !important" in reduced
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assert "animation:" not in css
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def test_dockerfile_copies_and_verifies_every_tracked_brand_asset() -> None:
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"""The immutable image, not a runtime coordinator path, owns PWA assets."""
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dockerfile = (DOCKERFILES / "Dockerfile.hermes-webui").read_text(encoding="utf-8")
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assert "/opt/hermes/web/public/favicon.ico" not in dockerfile
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assert "COPY dockerfiles/hermes-webui-brand-patch.py" in dockerfile
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assert "python /tmp/hermes-webui-brand-patch.py" in dockerfile
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assert "COPY dockerfiles/hermes-webui-manifest-patch.py" in dockerfile
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assert "python /tmp/hermes-webui-manifest-patch.py" in dockerfile
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assert (
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"COPY dockerfiles/hermes-webui-manifest.json /tmp/hermes-webui-manifest.json"
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in dockerfile
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)
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assert (
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"COPY dockerfiles/hermes-webui-manifest.json /opt/hermes-webui/static/manifest.json"
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not in dockerfile
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)
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assert "python /tmp/hermes-webui-smoke.py http://127.0.0.1:18787/" in dockerfile
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assert "COPY dockerfiles/hermes-webui-brand.css" in dockerfile
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for name, digest in EXPECTED_HASHES.items():
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assert f"COPY dockerfiles/hermes-webui-assets/{name}" in dockerfile
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assert digest in dockerfile
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