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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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