1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
package main
import (
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"net/url"
"regexp"
"testing"
"time"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/badgateway"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/helper"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/proxy"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/testhelper"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/upstream/roundtripper"
"github.com/stretchr/testify/require"
)
const testVersion = "123"
func newProxy(url string, rt http.RoundTripper, opts ...func(*proxy.Proxy)) *proxy.Proxy {
parsedURL := helper.URLMustParse(url)
if rt == nil {
rt = roundtripper.NewTestBackendRoundTripper(parsedURL)
}
return proxy.NewProxy(parsedURL, testVersion, rt, opts...)
}
func TestProxyRequest(t *testing.T) {
inboundURL, err := url.Parse("https://explicitly.set.host/url/path")
require.NoError(t, err, "parse inbound url")
urlRegexp := regexp.MustCompile(fmt.Sprintf(`%s\z`, inboundURL.Path))
ts := testhelper.TestServerWithHandler(urlRegexp, func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, "POST", r.Method, "method")
require.Equal(t, "test", r.Header.Get("Custom-Header"), "custom header")
require.Equal(t, testVersion, r.Header.Get("Gitlab-Workhorse"), "version header")
require.Equal(t, inboundURL.Host, r.Host, "sent host header")
require.Empty(t, r.Header.Get("X-Forwarded-Host"), "X-Forwarded-Host header")
require.Empty(t, r.Header.Get("Forwarded"), "Forwarded header")
require.Regexp(
t,
regexp.MustCompile(`\A1`),
r.Header.Get("Gitlab-Workhorse-Proxy-Start"),
"expect Gitlab-Workhorse-Proxy-Start to start with 1",
)
body, err := ioutil.ReadAll(r.Body)
require.NoError(t, err, "read body")
require.Equal(t, "REQUEST", string(body), "body contents")
w.Header().Set("Custom-Response-Header", "test")
w.WriteHeader(202)
fmt.Fprint(w, "RESPONSE")
})
httpRequest, err := http.NewRequest("POST", inboundURL.String(), bytes.NewBufferString("REQUEST"))
require.NoError(t, err)
httpRequest.Header.Set("Custom-Header", "test")
w := httptest.NewRecorder()
newProxy(ts.URL, nil).ServeHTTP(w, httpRequest)
require.Equal(t, 202, w.Code)
testhelper.RequireResponseBody(t, w, "RESPONSE")
require.Equal(t, "test", w.Header().Get("Custom-Response-Header"), "custom response header")
}
func TestProxyWithForcedTargetHostHeader(t *testing.T) {
var tsUrl *url.URL
inboundURL, err := url.Parse("https://explicitly.set.host/url/path")
require.NoError(t, err, "parse upstream url")
urlRegexp := regexp.MustCompile(fmt.Sprintf(`%s\z`, inboundURL.Path))
ts := testhelper.TestServerWithHandler(urlRegexp, func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, tsUrl.Host, r.Host, "upstream host header")
require.Equal(t, inboundURL.Host, r.Header.Get("X-Forwarded-Host"), "X-Forwarded-Host header")
require.Equal(t, fmt.Sprintf("host=%s", inboundURL.Host), r.Header.Get("Forwarded"), "Forwarded header")
_, err := w.Write([]byte(`ok`))
require.NoError(t, err, "write ok response")
})
tsUrl, err = url.Parse(ts.URL)
require.NoError(t, err, "parse testserver URL")
httpRequest, err := http.NewRequest("POST", inboundURL.String(), nil)
require.NoError(t, err)
w := httptest.NewRecorder()
testProxy := newProxy(ts.URL, nil, proxy.WithForcedTargetHostHeader())
testProxy.ServeHTTP(w, httpRequest)
testhelper.RequireResponseBody(t, w, "ok")
}
func TestProxyWithCustomHeaders(t *testing.T) {
ts := testhelper.TestServerWithHandler(regexp.MustCompile(`/url/path\z`), func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, "value", r.Header.Get("Custom-Header"), "custom proxy header")
require.Equal(t, testVersion, r.Header.Get("Gitlab-Workhorse"), "version header")
_, err := w.Write([]byte(`ok`))
require.NoError(t, err, "write ok response")
})
httpRequest, err := http.NewRequest("POST", ts.URL+"/url/path", nil)
require.NoError(t, err)
w := httptest.NewRecorder()
testProxy := newProxy(ts.URL, nil, proxy.WithCustomHeaders(map[string]string{"Custom-Header": "value"}))
testProxy.ServeHTTP(w, httpRequest)
testhelper.RequireResponseBody(t, w, "ok")
}
func TestProxyError(t *testing.T) {
httpRequest, err := http.NewRequest("POST", "/url/path", bytes.NewBufferString("REQUEST"))
require.NoError(t, err)
httpRequest.Header.Set("Custom-Header", "test")
w := httptest.NewRecorder()
newProxy("http://localhost:655575/", nil).ServeHTTP(w, httpRequest)
require.Equal(t, 502, w.Code)
require.Regexp(t, regexp.MustCompile("dial tcp:.*invalid port.*"), w.Body.String(), "response body")
}
func TestProxyReadTimeout(t *testing.T) {
ts := testhelper.TestServerWithHandler(nil, func(w http.ResponseWriter, r *http.Request) {
time.Sleep(time.Minute)
})
httpRequest, err := http.NewRequest("POST", "http://localhost/url/path", nil)
require.NoError(t, err)
rt := badgateway.NewRoundTripper(false, &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
ResponseHeaderTimeout: time.Millisecond,
})
p := newProxy(ts.URL, rt)
w := httptest.NewRecorder()
p.ServeHTTP(w, httpRequest)
require.Equal(t, 502, w.Code)
testhelper.RequireResponseBody(t, w, "GitLab is not responding")
}
func TestProxyHandlerTimeout(t *testing.T) {
ts := testhelper.TestServerWithHandler(nil,
http.TimeoutHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
time.Sleep(time.Second)
}), time.Millisecond, "Request took too long").ServeHTTP,
)
httpRequest, err := http.NewRequest("POST", "http://localhost/url/path", nil)
require.NoError(t, err)
w := httptest.NewRecorder()
newProxy(ts.URL, nil).ServeHTTP(w, httpRequest)
require.Equal(t, 503, w.Code)
testhelper.RequireResponseBody(t, w, "Request took too long")
}
|
