refactor: remove proxy API (#1596)

internal/githubmirror/config_test.go

@@ -0,0 +1,38 @@
+package githubmirror
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestMirrorCandidates(t *testing.T) {
+	cfg := &Config{Enabled: true, Mirrors: []Mirror{
+		{Type: "jsdelivr", URL: "https://cdn.example/gh/"},
+		{Type: "ghProxy", URL: "https://mirror.example/"},
+		{Type: "ghProxy", URL: "https://deleted.example", IsDeleted: true},
+	}}
+	source := "https://raw.githubusercontent.com/owner/repo/main/a.txt"
+	want := []string{source, "https://cdn.example/gh/owner/repo@main/a.txt", "https://mirror.example/" + source}
+	if got := Candidates(cfg, source, Resource); !reflect.DeepEqual(got, want) {
+		t.Fatalf("got %v", got)
+	}
+	repo := "https://github.com/owner/repo.git"
+	if got := Candidates(cfg, repo, Repository); !reflect.DeepEqual(got, []string{repo, "https://mirror.example/" + repo}) {
+		t.Fatalf("git candidates %v", got)
+	}
+	for _, raw := range []string{"https://github.com.evil.example/a", "https://example.com/a", "https://user:[email protected]/a"} {
+		if got := Candidates(cfg, raw, Resource); !reflect.DeepEqual(got, []string{raw}) {
+			t.Fatalf("unexpected mirror: %v", got)
+		}
+	}
+	apiURL := "https://api.github.com/repos/GopeedLab/gopeed/releases?per_page=10"
+	for _, kind := range []Kind{Resource, Repository} {
+		if got := Candidates(cfg, apiURL, kind); !reflect.DeepEqual(got, []string{apiURL}) {
+			t.Fatalf("GitHub API must never use mirrors: %v", got)
+		}
+	}
+	cfg.Enabled = false
+	if got := Candidates(cfg, source, Resource); !reflect.DeepEqual(got, []string{source}) {
+		t.Fatalf("disabled mirror: %v", got)
+	}
+}