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|
package fasthttpproxy
import (
"bufio"
"io"
"net"
"strings"
"sync/atomic"
"testing"
"github.com/valyala/fasthttp"
"golang.org/x/net/http/httpproxy"
)
func TestDialer_GetDialFunc(t *testing.T) {
if testing.Short() {
t.Skip("skip test that needs network access");
}
counts := make([]atomic.Int64, 4)
proxyListenPorts := []string{"8001", "8002", "8003", "8004"}
lns := startProxyServer(t, proxyListenPorts, counts)
defer func() {
for _, l := range lns {
l.Close()
}
}()
t.Setenv("HTTP_PROXY", "http://127.0.0.1:"+proxyListenPorts[2])
t.Setenv("HTTPS_PROXY", "http://127.0.0.1:"+proxyListenPorts[3])
t.Setenv("NO_PROXY", "github.com")
type fields struct {
httpProxy string
httpsProxy string
noProxy string
}
type args struct {
useEnv bool
}
tests := []struct {
name string
fields fields
args args
wantCounts []int64
dialAddr string
wantErrMessage string
}{
{
name: "proxy information comes from the configuration. dial https host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 1, 0, 0},
dialAddr: "github.io:443",
},
{
name: "proxy information comes from the configuration. dial http host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{1, 0, 0, 0},
dialAddr: "github.io:80",
},
{
name: "proxy information comes from the configuration. dial http host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:80",
},
{
name: "proxy information comes from the configuration. dial https host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:443",
},
{
name: "proxy information comes from the env. dial http host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: true,
},
wantCounts: []int64{0, 0, 1, 0},
dialAddr: "github.io:80",
},
{
name: "proxy information comes from the env. dial https host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: true,
},
wantCounts: []int64{0, 0, 0, 1},
dialAddr: "github.io:443",
},
{
name: "proxy information comes from the env. dial http host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: true,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:80",
},
{
name: "proxy information comes from the env. dial https host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[1],
noProxy: "github.com",
},
args: args{
useEnv: true,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:443",
},
{
name: "proxy information comes from the configuration and httpProxy same with httpsProxy. dial http host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[0],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{1, 0, 0, 0},
dialAddr: "github.io:80",
},
{
name: "proxy information comes from the configuration and httpProxy same with httpsProxy. dial https host",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[0],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{1, 0, 0, 0},
dialAddr: "github.io:443",
},
{
name: "proxy information comes from the configuration and httpProxy same with httpsProxy. dial http host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[0],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:80",
},
{
name: "proxy information comes from the configuration and httpProxy same with httpsProxy. dial https host matched with noProxy",
fields: fields{
httpProxy: "http://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "http://127.0.0.1:" + proxyListenPorts[0],
noProxy: "github.com",
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.com:443",
},
{
name: "return an error for unsupported proxy protocols.",
fields: fields{
httpProxy: "socket6://127.0.0.1:" + proxyListenPorts[0],
httpsProxy: "socket6://127.0.0.1:" + proxyListenPorts[0],
},
args: args{
useEnv: false,
},
wantCounts: []int64{0, 0, 0, 0},
dialAddr: "github.io:80",
wantErrMessage: "proxy: unknown scheme: socket6",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
d := getDialer(tt.fields.httpProxy, tt.fields.httpsProxy, tt.fields.noProxy)
dialFunc, err := d.GetDialFunc(tt.args.useEnv)
if (err != nil) != (tt.wantErrMessage != "") {
t.Fatalf("GetDialFunc() error = %v, wantErr %v", err, tt.wantErrMessage)
return
}
if tt.wantErrMessage != "" {
if err.Error() != tt.wantErrMessage {
t.Fatalf("want error message: %s, got: %s", err.Error(), tt.wantErrMessage)
}
return
}
_, err = dialFunc(tt.dialAddr)
if err != nil {
t.Fatal(err)
}
if !countsEqual(getCounts(counts), tt.wantCounts) {
t.Errorf("GetDialFunc() counts = %v, want %v", getCounts(counts), tt.wantCounts)
}
})
for i := 0; i < len(counts); i++ {
counts[i].Store(0)
}
}
}
func startProxyServer(t *testing.T, ports []string, counts []atomic.Int64) (lns []net.Listener) {
for i, port := range ports {
ln, err := net.Listen("tcp", ":"+port)
if err != nil {
t.Fatal(err)
}
lns = append(lns, ln)
i := i
go func() {
req := fasthttp.AcquireRequest()
for {
conn, err := ln.Accept()
if err != nil {
if err != io.EOF && !strings.Contains(err.Error(), "use of closed network connection") {
t.Error(err)
}
break
}
err = req.Read(bufio.NewReader(conn))
if err != nil {
t.Error(err)
}
if string(req.Header.Method()) == "CONNECT" {
counts[i].Add(1)
}
_, err = conn.Write([]byte("HTTP/1.1 200 Connection Established\r\n\r\n"))
if err != nil {
t.Error(err)
}
req.Reset()
}
fasthttp.ReleaseRequest(req)
}()
}
return
}
func getDialer(httpProxy, httpsProxy, noProxy string) *Dialer {
return &Dialer{
Config: httpproxy.Config{
HTTPProxy: httpProxy,
HTTPSProxy: httpsProxy,
NoProxy: noProxy,
},
}
}
func getCounts(counts []atomic.Int64) (r []int64) {
for i := 0; i < len(counts); i++ {
r = append(r, counts[i].Load())
}
return
}
func countsEqual(a, b []int64) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if b[i] != a[i] {
return false
}
}
return true
}
|
