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8a7598f6b5
* feat(auth): proxy OIDC provider icons server-side (#1333) Strict img-src CSP blocked external OIDC icon hosts on the login page. Loosening CSP was rejected via the MakerWorld precedent, so icons are proxied: admin sets icon_url, backend fetches and caches the bytes in a deferred BLOB column, the SPA renders from a same-origin /api/v1/auth/oidc/providers/{id}/icon endpoint.
115 lines
4.0 KiB
Python
115 lines
4.0 KiB
Python
"""Unit tests for the icon_url Pydantic validator (#1333).
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Mirrors the issuer_url validator pattern: HTTPS-only + private/loopback/
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link-local IP literals rejected. Hostname-based URLs are accepted without
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DNS resolution (deliberate, see _validate_issuer_url).
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"""
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import pytest
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from backend.app.schemas.auth import OIDCProviderCreate
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def _make_payload(icon_url: str | None) -> dict:
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"""Minimal valid OIDCProviderCreate payload with the given icon_url."""
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return {
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"name": "Test",
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"issuer_url": "https://idp.example.com",
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"client_id": "client",
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"client_secret": "secret",
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"icon_url": icon_url,
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}
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def test_icon_url_none_accepted():
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OIDCProviderCreate(**_make_payload(None))
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def test_icon_url_valid_https_accepted():
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OIDCProviderCreate(**_make_payload("https://example.com/icon.png"))
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def test_icon_url_http_rejected():
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with pytest.raises(ValueError, match="icon_url must start with https"):
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OIDCProviderCreate(**_make_payload("http://example.com/icon.png"))
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def test_icon_url_empty_string_rejected():
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# Pydantic doesn't coerce "" to None — the validator runs on the raw value.
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with pytest.raises(ValueError, match="icon_url must start with https"):
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OIDCProviderCreate(**_make_payload(""))
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@pytest.mark.parametrize(
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"url",
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[
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"https://192.168.1.1/icon.png",
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"https://10.0.0.5/icon.png",
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"https://172.16.0.1/icon.png",
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],
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)
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def test_icon_url_private_ip_rejected(url):
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with pytest.raises(ValueError, match="private"):
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OIDCProviderCreate(**_make_payload(url))
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def test_icon_url_loopback_ip_rejected():
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with pytest.raises(ValueError, match="loopback"):
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OIDCProviderCreate(**_make_payload("https://127.0.0.1/icon.png"))
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def test_icon_url_link_local_or_cloud_metadata_rejected():
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# 169.254.169.254 is BOTH link-local AND a cloud-metadata IP — the guard
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# checks cloud-metadata first (per intentional ordering), so either
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# rejection message is correct. Mirrors the same pattern in
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# test_oidc_icon_helpers.test_rejects_link_local.
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with pytest.raises(ValueError, match="cloud metadata|link-local"):
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OIDCProviderCreate(**_make_payload("https://169.254.169.254/icon.png"))
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def test_icon_url_hostname_accepted_no_dns():
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# "localhost" is a hostname, not a bare IP — DNS resolution is deliberately
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# not performed here (matches _validate_issuer_url policy). The runtime
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# SSRF guard (assert_safe_public_https_url) handles the bare-IP cases
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# again; hostnames are caught only by the IDP-itself-misconfigured path.
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OIDCProviderCreate(**_make_payload("https://idp.internal.corp/icon.png"))
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# ─── I1: schema now delegates to runtime SSRF guard ──────────────────────
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# Verifies that the wider allowlist (numeric IPs, cloud-meta, multicast,
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# IPv4-mapped IPv6) is enforced at Pydantic-parse-time too, not just at
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# fetch time.
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@pytest.mark.parametrize(
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"url",
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[
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"https://2130706433/icon.png", # decimal-encoded 127.0.0.1
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"https://0x7f000001/icon.png", # hex-encoded 127.0.0.1
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],
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)
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def test_icon_url_numeric_encoded_ip_rejected(url):
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with pytest.raises(ValueError, match="numeric-encoded"):
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OIDCProviderCreate(**_make_payload(url))
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def test_icon_url_cloud_metadata_alibaba_rejected():
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with pytest.raises(ValueError, match="cloud metadata"):
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OIDCProviderCreate(**_make_payload("https://100.100.100.200/icon.png"))
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def test_icon_url_unspecified_rejected():
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with pytest.raises(ValueError, match="unspecified"):
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OIDCProviderCreate(**_make_payload("https://0.0.0.0/icon.png"))
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def test_icon_url_multicast_rejected():
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with pytest.raises(ValueError, match="multicast"):
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OIDCProviderCreate(**_make_payload("https://224.0.0.1/icon.png"))
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def test_icon_url_ipv4_mapped_ipv6_private_rejected():
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# ::ffff:192.168.1.1 unwraps to 192.168.1.1 → private
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with pytest.raises(ValueError, match="private"):
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OIDCProviderCreate(**_make_payload("https://[::ffff:192.168.1.1]/icon.png"))
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