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- // Copyright 2015 Google Inc. All rights reserved.
- //
- // 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 martianlog
-
- import (
- "bytes"
- "compress/gzip"
- "fmt"
- "net/http"
- "strings"
- "testing"
-
- "github.com/google/martian"
- "github.com/google/martian/parse"
- "github.com/google/martian/proxyutil"
- )
-
- func ExampleLogger() {
- l := NewLogger()
- l.SetLogFunc(func(line string) {
- // Remove \r to make it easier to test with examples.
- fmt.Print(strings.Replace(line, "\r", "", -1))
- })
- l.SetDecode(true)
-
- buf := new(bytes.Buffer)
- gw := gzip.NewWriter(buf)
- gw.Write([]byte("request content"))
- gw.Close()
-
- req, err := http.NewRequest("GET", "http://example.com/path?querystring", buf)
- if err != nil {
- fmt.Println(err)
- return
- }
- req.TransferEncoding = []string{"chunked"}
- req.Header.Set("Content-Encoding", "gzip")
-
- _, remove, err := martian.TestContext(req, nil, nil)
- if err != nil {
- fmt.Println(err)
- return
- }
- defer remove()
-
- if err := l.ModifyRequest(req); err != nil {
- fmt.Println(err)
- return
- }
-
- res := proxyutil.NewResponse(200, strings.NewReader("response content"), req)
- res.ContentLength = 16
- res.Header.Set("Date", "Tue, 15 Nov 1994 08:12:31 GMT")
- res.Header.Set("Other-Header", "values")
-
- if err := l.ModifyResponse(res); err != nil {
- fmt.Println(err)
- return
- }
- // Output:
- // --------------------------------------------------------------------------------
- // Request to http://example.com/path?querystring
- // --------------------------------------------------------------------------------
- // GET http://example.com/path?querystring HTTP/1.1
- // Host: example.com
- // Transfer-Encoding: chunked
- // Content-Encoding: gzip
- //
- // request content
- //
- // --------------------------------------------------------------------------------
- //
- // --------------------------------------------------------------------------------
- // Response from http://example.com/path?querystring
- // --------------------------------------------------------------------------------
- // HTTP/1.1 200 OK
- // Content-Length: 16
- // Date: Tue, 15 Nov 1994 08:12:31 GMT
- // Other-Header: values
- //
- // response content
- // --------------------------------------------------------------------------------
- }
-
- func TestLoggerFromJSON(t *testing.T) {
- msg := []byte(`{
- "log.Logger": {
- "scope": ["request", "response"],
- "headersOnly": true,
- "decode": true
- }
- }`)
-
- r, err := parse.FromJSON(msg)
- if err != nil {
- t.Fatalf("parse.FromJSON(): got %v, want no error", err)
- }
-
- reqmod := r.RequestModifier()
- if reqmod == nil {
- t.Fatal("r.RequestModifier(): got nil, want not nil")
- }
- if _, ok := reqmod.(*Logger); !ok {
- t.Error("reqmod.(*Logger): got !ok, want ok")
- }
-
- resmod := r.ResponseModifier()
- if resmod == nil {
- t.Fatal("r.ResponseModifier(): got nil, want not nil")
- }
-
- l, ok := resmod.(*Logger)
- if !ok {
- t.Error("resmod.(*Logger); got !ok, want ok")
- }
-
- if !l.headersOnly {
- t.Error("l.headersOnly: got false, want true")
- }
-
- if !l.decode {
- t.Error("l.decode: got false, want true")
- }
- }
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