forked from cerc-io/plugeth
ea26fc8a6c
This PR makes it possible to set custom headers, in particular for two scenarios: - geth attach - geth commands which can use --remotedb, e..g geth db inspect The ability to use custom headers is typically useful for connecting to cloud-apis, e.g. providing an infura- or alchemy key, or for that matter access-keys for environments behind cloudflare. Co-authored-by: Felix Lange <fjl@twurst.com>
84 lines
2.8 KiB
Go
84 lines
2.8 KiB
Go
// Copyright 2022 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"fmt"
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"net"
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"net/http"
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"sync/atomic"
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"testing"
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)
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type testHandler struct {
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body func(http.ResponseWriter, *http.Request)
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}
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func (t *testHandler) ServeHTTP(out http.ResponseWriter, in *http.Request) {
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t.body(out, in)
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}
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// TestAttachWithHeaders tests that 'geth attach' with custom headers works, i.e
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// that custom headers are forwarded to the target.
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func TestAttachWithHeaders(t *testing.T) {
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t.Parallel()
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ln, err := net.Listen("tcp", "localhost:0")
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if err != nil {
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t.Fatal(err)
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}
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port := ln.Addr().(*net.TCPAddr).Port
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testReceiveHeaders(t, ln, "attach", "-H", "first: one", "-H", "second: two", fmt.Sprintf("http://localhost:%d", port))
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// This way to do it fails due to flag ordering:
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//
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// testReceiveHeaders(t, ln, "-H", "first: one", "-H", "second: two", "attach", fmt.Sprintf("http://localhost:%d", port))
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// This is fixed in a follow-up PR.
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}
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// TestAttachWithHeaders tests that 'geth db --remotedb' with custom headers works, i.e
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// that custom headers are forwarded to the target.
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func TestRemoteDbWithHeaders(t *testing.T) {
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t.Parallel()
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ln, err := net.Listen("tcp", "localhost:0")
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if err != nil {
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t.Fatal(err)
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}
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port := ln.Addr().(*net.TCPAddr).Port
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testReceiveHeaders(t, ln, "db", "metadata", "--remotedb", fmt.Sprintf("http://localhost:%d", port), "-H", "first: one", "-H", "second: two")
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}
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func testReceiveHeaders(t *testing.T, ln net.Listener, gethArgs ...string) {
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var ok uint32
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server := &http.Server{
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Addr: "localhost:0",
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Handler: &testHandler{func(w http.ResponseWriter, r *http.Request) {
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// We expect two headers
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if have, want := r.Header.Get("first"), "one"; have != want {
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t.Fatalf("missing header, have %v want %v", have, want)
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}
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if have, want := r.Header.Get("second"), "two"; have != want {
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t.Fatalf("missing header, have %v want %v", have, want)
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}
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atomic.StoreUint32(&ok, 1)
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}}}
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go server.Serve(ln)
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defer server.Close()
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runGeth(t, gethArgs...).WaitExit()
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if atomic.LoadUint32(&ok) != 1 {
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t.Fatal("Test fail, expected invocation to succeed")
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}
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}
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