// 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----- MIIB9jCCAV+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADAYMRYwFAYDVQQDDA1DYWRk eSBUZXN0IENBMB4XDTE4MDcyNDIxMzUwNVoXDTI4MDcyMTIxMzUwNVowHTEbMBkG A1UEAwwSY2xpZW50LmxvY2FsZG9tYWluMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB iQKBgQDFDEpzF0ew68teT3xDzcUxVFaTII+jXH1ftHXxxP4BEYBU4q90qzeKFneF z83I0nC0WAQ45ZwHfhLMYHFzHPdxr6+jkvKPASf0J2v2HDJuTM1bHBbik5Ls5eq+ fVZDP8o/VHKSBKxNs8Goc2NTsr5b07QTIpkRStQK+RJALk4x9QIDAQABo0swSTAJ BgNVHRMEAjAAMAsGA1UdDwQEAwIHgDAaBgNVHREEEzARgglsb2NhbGhvc3SHBH8A AAEwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDQYJKoZIhvcNAQELBQADgYEANSjz2Sk+ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV 3Q9fgDkiUod+uIK0IynzIKvw+Cjg+3nx6NQ0IM0zo8c7v398RzB4apbXKZyeeqUH 9fNwfEi+OoXR6s+upSKobCmLGLGi9Na5s5g= -----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: "", }, { 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: "", }, { 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", }, } { actual := repl.ReplaceAll(tc.input, "") if actual != tc.expect { t.Errorf("Test %d: Expected placeholder %s to be '%s' but got '%s'", i, tc.input, tc.expect, actual) } } }