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cmd/serve: don't convert localhost to 127.0.0.1

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This is not valid in many situations, specifically when running a local astro site that listens on localhost, but ignores 127.0.0.1

Fixes: https://github.com/tailscale/tailscale/issues/12201

Signed-off-by: Josh McKinney <joshka@users.noreply.github.com>
This commit is contained in:
Josh McKinney 2024-05-20 17:38:08 -07:00 committed by Brad Fitzpatrick
parent 210264f942
commit 1d6ab9f9db
2 changed files with 6 additions and 7 deletions
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2
ipn/serve.go
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@ -538,7 +538,7 @@ func ExpandProxyTargetValue(target string, supportedSchemes []string, defaultSch
return "", fmt.Errorf("invalid port %q", u.Port())
}
u.Host = fmt.Sprintf("%s:%d", host, port)
u.Host = fmt.Sprintf("%s:%d", u.Hostname(), port)
return u.String(), nil
}

11
ipn/serve_test.go
View File

@ -137,14 +137,13 @@ func TestExpandProxyTargetDev(t *testing.T) {
wantErr bool
}{
{name: "port-only", input: "8080", expected: "http://127.0.0.1:8080"},
{name: "hostname+port", input: "localhost:8080", expected: "http://127.0.0.1:8080"},
{name: "convert-localhost", input: "http://localhost:8080", expected: "http://127.0.0.1:8080"},
{name: "hostname+port", input: "localhost:8080", expected: "http://localhost:8080"},
{name: "no-change", input: "http://127.0.0.1:8080", expected: "http://127.0.0.1:8080"},
{name: "include-path", input: "http://127.0.0.1:8080/foo", expected: "http://127.0.0.1:8080/foo"},
{name: "https-scheme", input: "https://localhost:8080", expected: "https://127.0.0.1:8080"},
{name: "https+insecure-scheme", input: "https+insecure://localhost:8080", expected: "https+insecure://127.0.0.1:8080"},
{name: "change-default-scheme", input: "localhost:8080", defaultScheme: "https", expected: "https://127.0.0.1:8080"},
{name: "change-supported-schemes", input: "localhost:8080", defaultScheme: "tcp", supportedSchemes: []string{"tcp"}, expected: "tcp://127.0.0.1:8080"},
{name: "https-scheme", input: "https://localhost:8080", expected: "https://localhost:8080"},
{name: "https+insecure-scheme", input: "https+insecure://localhost:8080", expected: "https+insecure://localhost:8080"},
{name: "change-default-scheme", input: "localhost:8080", defaultScheme: "https", expected: "https://localhost:8080"},
{name: "change-supported-schemes", input: "localhost:8080", defaultScheme: "tcp", supportedSchemes: []string{"tcp"}, expected: "tcp://localhost:8080"},
// errors
{name: "invalid-port", input: "localhost:9999999", wantErr: true},