Initial commit: Null DRM Official

Capture, decrypt, and restream toolkit with compiled-in app modules
(RTE, TG4, BBC), on-device MITM proxy, streamd control plane, and www.
BBC module.yaml is published (clear streams); other module values stay local.

apps/pkg/capture/score_test.go

@@ -0,0 +1,72 @@
+package capture
+
+import "testing"
+
+// provider-shaped config, supplied the way a module would.
+func testScoreCfg() ScoreCfg {
+	return DefaultScoreCfg().Merge(ScoreCfg{
+		Deny:  []string{"feed.entertainment", "metrics.example", "noise.example"},
+		Hosts: []string{"live.example.com", "fastly.live.example.com"},
+	})
+}
+
+func TestScoreCfgScore(t *testing.T) {
+	cfg := testScoreCfg()
+	cases := []struct {
+		url  string
+		want string // "pos" or "neg"
+	}{
+		{"https://feed.entertainment.tv.example.eu/f/1uC-gC/prd-all-schedules?byListingTime=1~2", "neg"},
+		{"https://metrics.example.com/v2/tracker?foo=.m3u8", "neg"},
+		{"https://cdn.example.com/smarttv/playback_config.json", "neg"},
+		{"https://live.example.com/live/foo/manifest.mpd", "pos"},
+		{"https://fastly.live.example.com/x/playlist-hls.m3u8", "pos"},
+		{"https://unknown-host.test/video/master.m3u8", "pos"},
+		{"https://unknown-host.test/live/vc11.isml/Manifest", "pos"},
+	}
+	for _, tc := range cases {
+		sc := cfg.Score(tc.url)
+		if tc.want == "pos" && sc <= 0 {
+			t.Errorf("score(%q)=%d, want > 0", tc.url, sc)
+		}
+		if tc.want == "neg" && sc > 0 {
+			t.Errorf("score(%q)=%d, want <= 0", tc.url, sc)
+		}
+	}
+}
+
+// A known provider host must outrank a bare manifest on an unknown host, so the
+// best candidate in a noisy MITM log is the provider's own origin.
+func TestScoreCfgPrefersKnownHost(t *testing.T) {
+	cfg := testScoreCfg()
+	known := cfg.Score("https://live.example.com/live/foo/manifest.mpd")
+	unknown := cfg.Score("https://somewhere.test/live/foo/manifest.mpd")
+	if known <= unknown {
+		t.Fatalf("known host %d should outrank unknown host %d", known, unknown)
+	}
+}
+
+func TestDefaultScoreCfgNeedsNoProviderHosts(t *testing.T) {
+	cfg := DefaultScoreCfg()
+	if cfg.Score("https://anything.test/playlist.m3u8") <= 0 {
+		t.Fatal("format-level scoring must work without provider hosts")
+	}
+	if cfg.Score("https://anything.test/api/schedules?x=1") > 0 {
+		t.Fatal("schedule feeds must score out with the baseline config")
+	}
+}
+
+func TestHasUsefulIgnoresSchedulesMPD(t *testing.T) {
+	hints := DefaultPassiveHints()
+	hints.Score = testScoreCfg()
+	cap := Data{
+		"mpd": "https://feed.entertainment.tv.example.eu/f/1uC-gC/prd-all-schedules?byListingTime=1~2",
+	}
+	if hasUseful(cap, hints) {
+		t.Fatal("schedules feed must not count as useful capture")
+	}
+	cap["license_url"] = "https://widevine.example/license"
+	if !hasUseful(cap, hints) {
+		t.Fatal("license_url should count as useful")
+	}
+}