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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyhttp
import (
"context"
"crypto/tls"
"crypto/x509"
"encoding/pem"
"net/http"
"net/http/httptest"
"testing"
"github.com/caddyserver/caddy/v2"
)
func TestHTTPVarReplacement(t *testing.T) {
req, _ := http.NewRequest("GET", "/", nil)
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
req.Host = "example.com:80"
req.RemoteAddr = "localhost:1234"
clientCert := []byte(`-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`)
block, _ := pem.Decode(clientCert)
if block == nil {
t.Fatalf("failed to decode PEM certificate")
}
cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
t.Fatalf("failed to decode PEM certificate: %v", err)
}
req.TLS = &tls.ConnectionState{
Version: tls.VersionTLS13,
HandshakeComplete: true,
ServerName: "foo.com",
CipherSuite: tls.TLS_AES_256_GCM_SHA384,
PeerCertificates: []*x509.Certificate{cert},
NegotiatedProtocol: "h2",
NegotiatedProtocolIsMutual: true,
}
res := httptest.NewRecorder()
addHTTPVarsToReplacer(repl, req, res)
for i, tc := range []struct {
input string
expect string
}{
{
input: "{http.request.scheme}",
expect: "https",
},
{
input: "{http.request.host}",
expect: "example.com",
},
{
input: "{http.request.port}",
expect: "80",
},
{
input: "{http.request.hostport}",
expect: "example.com:80",
},
{
input: "{http.request.remote.host}",
expect: "localhost",
},
{
input: "{http.request.remote.port}",
expect: "1234",
},
{
input: "{http.request.host.labels.0}",
expect: "com",
},
{
input: "{http.request.host.labels.1}",
expect: "example",
},
{
input: "{http.request.host.labels.2}",
expect: "<empty>",
},
{
input: "{http.request.tls.cipher_suite}",
expect: "TLS_AES_256_GCM_SHA384",
},
{
input: "{http.request.tls.proto}",
expect: "h2",
},
{
input: "{http.request.tls.proto_mutual}",
expect: "true",
},
{
input: "{http.request.tls.resumed}",
expect: "false",
},
{
input: "{http.request.tls.server_name}",
expect: "foo.com",
},
{
input: "{http.request.tls.version}",
expect: "tls1.3",
},
{
input: "{http.request.tls.client.fingerprint}",
expect: "9f57b7b497cceacc5459b76ac1c3afedbc12b300e728071f55f84168ff0f7702",
},
{
input: "{http.request.tls.client.issuer}",
expect: "CN=Caddy Test CA",
},
{
input: "{http.request.tls.client.serial}",
expect: "2",
},
{
input: "{http.request.tls.client.subject}",
expect: "CN=client.localdomain",
},
{
input: "{http.request.tls.client.san.dns_names}",
expect: "[localhost]",
},
{
input: "{http.request.tls.client.san.dns_names.0}",
expect: "localhost",
},
{
input: "{http.request.tls.client.san.dns_names.1}",
expect: "<empty>",
},
{
input: "{http.request.tls.client.san.ips}",
expect: "[127.0.0.1]",
},
{
input: "{http.request.tls.client.san.ips.0}",
expect: "127.0.0.1",
},
{
input: "{http.request.tls.client.certificate_pem}",
expect: string(clientCert) + "\n", // returned value comes with a newline appended to it
},
} {
actual := repl.ReplaceAll(tc.input, "<empty>")
if actual != tc.expect {
t.Errorf("Test %d: Expected placeholder %s to be '%s' but got '%s'",
i, tc.input, tc.expect, actual)
}
}
}
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