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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"
"net/http"
"net/http/httptest"
"testing"
"github.com/caddyserver/caddy/v2"
)
func TestHTTPVarReplacement(t *testing.T) {
req, _ := http.NewRequest(http.MethodGet, "/foo/bar.tar.gz", nil)
repl := caddy.NewReplacer()
localAddr, _ := net.ResolveTCPAddr("tcp", "192.168.159.1:80")
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
ctx = context.WithValue(ctx, http.LocalAddrContextKey, localAddr)
req = req.WithContext(ctx)
req.Host = "example.com:80"
req.RemoteAddr = "192.168.159.32:1234"
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: "example.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 {
get string
expect string
}{
{
get: "http.request.scheme",
expect: "https",
},
{
get: "http.request.method",
expect: http.MethodGet,
},
{
get: "http.request.host",
expect: "example.com",
},
{
get: "http.request.port",
expect: "80",
},
{
get: "http.request.hostport",
expect: "example.com:80",
},
{
get: "http.request.local.host",
expect: "192.168.159.1",
},
{
get: "http.request.local.port",
expect: "80",
},
{
get: "http.request.local",
expect: "192.168.159.1:80",
},
{
get: "http.request.remote.host",
expect: "192.168.159.32",
},
{
get: "http.request.remote.host/24",
expect: "192.168.159.0/24",
},
{
get: "http.request.remote.host/24,32",
expect: "192.168.159.0/24",
},
{
get: "http.request.remote.host/999",
expect: "",
},
{
get: "http.request.remote.port",
expect: "1234",
},
{
get: "http.request.host.labels.0",
expect: "com",
},
{
get: "http.request.host.labels.1",
expect: "example",
},
{
get: "http.request.host.labels.2",
expect: "",
},
{
get: "http.request.uri.path.file",
expect: "bar.tar.gz",
},
{
get: "http.request.uri.path.file.base",
expect: "bar.tar",
},
{
// not ideal, but also most correct, given that files can have dots (example: index.<SHA>.html) TODO: maybe this isn't right..
get: "http.request.uri.path.file.ext",
expect: ".gz",
},
{
get: "http.request.tls.cipher_suite",
expect: "TLS_AES_256_GCM_SHA384",
},
{
get: "http.request.tls.proto",
expect: "h2",
},
{
get: "http.request.tls.proto_mutual",
expect: "true",
},
{
get: "http.request.tls.resumed",
expect: "false",
},
{
get: "http.request.tls.server_name",
expect: "example.com",
},
{
get: "http.request.tls.version",
expect: "tls1.3",
},
{
get: "http.request.tls.client.fingerprint",
expect: "9f57b7b497cceacc5459b76ac1c3afedbc12b300e728071f55f84168ff0f7702",
},
{
get: "http.request.tls.client.issuer",
expect: "CN=Caddy Test CA",
},
{
get: "http.request.tls.client.serial",
expect: "2",
},
{
get: "http.request.tls.client.subject",
expect: "CN=client.localdomain",
},
{
get: "http.request.tls.client.san.dns_names",
expect: "[localhost]",
},
{
get: "http.request.tls.client.san.dns_names.0",
expect: "localhost",
},
{
get: "http.request.tls.client.san.dns_names.1",
expect: "",
},
{
get: "http.request.tls.client.san.ips",
expect: "[127.0.0.1]",
},
{
get: "http.request.tls.client.san.ips.0",
expect: "127.0.0.1",
},
{
get: "http.request.tls.client.certificate_pem",
expect: string(clientCert) + "\n", // returned value comes with a newline appended to it
},
} {
actual, got := repl.GetString(tc.get)
if !got {
t.Errorf("Test %d: Expected to recognize the placeholder name, but didn't", i)
}
if actual != tc.expect {
t.Errorf("Test %d: Expected %s to be '%s' but got '%s'",
i, tc.get, tc.expect, actual)
}
}
}
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