package proxyutil import ( "net/http" "testing") func mustDefaultTransport(t *testing.T) *http.Transport { t.Helper() transport, ok := http.DefaultTransport.(*http.Transport) if !ok || transport == nil { t.Fatal("http.DefaultTransport is not an *http.Transport") } return transport} func TestParse(t *testing.T) { t.Parallel() tests := []struct { name string input string want Mode wantErr bool }{ {name: "inherit", input: "", want: ModeInherit}, {name: "direct", input: "direct", want: ModeDirect}, {name: "none", input: "none", want: ModeDirect}, {name: "http", input: "http://proxy.example.com:8080", want: ModeProxy}, {name: "https", input: "https://proxy.example.com:8443", want: ModeProxy}, {name: "socks5", input: "socks5://proxy.example.com:1080", want: ModeProxy}, {name: "socks5h", input: "socks5h://proxy.example.com:1080", want: ModeProxy}, {name: "invalid", input: "bad-value", want: ModeInvalid, wantErr: true}, } for _, tt := range tests { tt := tt t.Run(tt.name, func(t *testing.T) { t.Parallel() setting, errParse := Parse(tt.input) if tt.wantErr && errParse == nil { t.Fatal("expected error, got nil") } if !tt.wantErr && errParse != nil { t.Fatalf("unexpected error: %v", errParse) } if setting.Mode != tt.want { t.Fatalf("mode = %d, want %d", setting.Mode, tt.want) } }) }} func TestBuildHTTPTransportDirectBypassesProxy(t *testing.T) { t.Parallel() transport, mode, errBuild := BuildHTTPTransport("direct") if errBuild != nil { t.Fatalf("BuildHTTPTransport returned error: %v", errBuild) } if mode != ModeDirect { t.Fatalf("mode = %d, want %d", mode, ModeDirect) } if transport == nil { t.Fatal("expected transport, got nil") } if transport.Proxy != nil { t.Fatal("expected direct transport to disable proxy function") }} func TestBuildHTTPTransportHTTPProxy(t *testing.T) { t.Parallel() transport, mode, errBuild := BuildHTTPTransport("http://proxy.example.com:8080") if errBuild != nil { t.Fatalf("BuildHTTPTransport returned error: %v", errBuild) } if mode != ModeProxy { t.Fatalf("mode = %d, want %d", mode, ModeProxy) } if transport == nil { t.Fatal("expected transport, got nil") } req, errRequest := http.NewRequest(http.MethodGet, "https://example.com", nil) if errRequest != nil { t.Fatalf("http.NewRequest returned error: %v", errRequest) } proxyURL, errProxy := transport.Proxy(req) if errProxy != nil { t.Fatalf("transport.Proxy returned error: %v", errProxy) } if proxyURL == nil || proxyURL.String() != "http://proxy.example.com:8080" { t.Fatalf("proxy URL = %v, want http://proxy.example.com:8080", proxyURL) } defaultTransport := mustDefaultTransport(t) if transport.ForceAttemptHTTP2 != defaultTransport.ForceAttemptHTTP2 { t.Fatalf("ForceAttemptHTTP2 = %v, want %v", transport.ForceAttemptHTTP2, defaultTransport.ForceAttemptHTTP2) } if transport.IdleConnTimeout != defaultTransport.IdleConnTimeout { t.Fatalf("IdleConnTimeout = %v, want %v", transport.IdleConnTimeout, defaultTransport.IdleConnTimeout) } if transport.TLSHandshakeTimeout != defaultTransport.TLSHandshakeTimeout { t.Fatalf("TLSHandshakeTimeout = %v, want %v", transport.TLSHandshakeTimeout, defaultTransport.TLSHandshakeTimeout) }} func TestBuildHTTPTransportSOCKS5ProxyInheritsDefaultTransportSettings(t *testing.T) { t.Parallel() transport, mode, errBuild := BuildHTTPTransport("socks5://proxy.example.com:1080") if errBuild != nil { t.Fatalf("BuildHTTPTransport returned error: %v", errBuild) } if mode != ModeProxy { t.Fatalf("mode = %d, want %d", mode, ModeProxy) } if transport == nil { t.Fatal("expected transport, got nil") } if transport.Proxy != nil { t.Fatal("expected SOCKS5 transport to bypass http proxy function") } defaultTransport := mustDefaultTransport(t) if transport.ForceAttemptHTTP2 != defaultTransport.ForceAttemptHTTP2 { t.Fatalf("ForceAttemptHTTP2 = %v, want %v", transport.ForceAttemptHTTP2, defaultTransport.ForceAttemptHTTP2) } if transport.IdleConnTimeout != defaultTransport.IdleConnTimeout { t.Fatalf("IdleConnTimeout = %v, want %v", transport.IdleConnTimeout, defaultTransport.IdleConnTimeout) } if transport.TLSHandshakeTimeout != defaultTransport.TLSHandshakeTimeout { t.Fatalf("TLSHandshakeTimeout = %v, want %v", transport.TLSHandshakeTimeout, defaultTransport.TLSHandshakeTimeout) }} func TestBuildHTTPTransportSOCKS5HProxy(t *testing.T) { t.Parallel() transport, mode, errBuild := BuildHTTPTransport("socks5h://proxy.example.com:1080") if errBuild != nil { t.Fatalf("BuildHTTPTransport returned error: %v", errBuild) } if mode != ModeProxy { t.Fatalf("mode = %d, want %d", mode, ModeProxy) } if transport == nil { t.Fatal("expected transport, got nil") } if transport.Proxy != nil { t.Fatal("expected SOCKS5H transport to bypass http proxy function") } if transport.DialContext == nil { t.Fatal("expected SOCKS5H transport to have custom DialContext") }}
package proxyutil
import (
"net/http"
"testing"
)
func mustDefaultTransport(t *testing.T) *http.Transport {
t.Helper()
transport, ok := http.DefaultTransport.(*http.Transport)
if !ok || transport == nil {
t.Fatal("http.DefaultTransport is not an *http.Transport")
}
return transport
}
func TestParse(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input string
want Mode
wantErr bool
}{
{name: "inherit", input: "", want: ModeInherit},
{name: "direct", input: "direct", want: ModeDirect},
{name: "none", input: "none", want: ModeDirect},
{name: "http", input: "http://proxy.example.com:8080", want: ModeProxy},
{name: "https", input: "https://proxy.example.com:8443", want: ModeProxy},
{name: "socks5", input: "socks5://proxy.example.com:1080", want: ModeProxy},
{name: "socks5h", input: "socks5h://proxy.example.com:1080", want: ModeProxy},
{name: "invalid", input: "bad-value", want: ModeInvalid, wantErr: true},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
setting, errParse := Parse(tt.input)
if tt.wantErr && errParse == nil {
t.Fatal("expected error, got nil")
}
if !tt.wantErr && errParse != nil {
t.Fatalf("unexpected error: %v", errParse)
}
if setting.Mode != tt.want {
t.Fatalf("mode = %d, want %d", setting.Mode, tt.want)
}
})
}
}
func TestBuildHTTPTransportDirectBypassesProxy(t *testing.T) {
t.Parallel()
transport, mode, errBuild := BuildHTTPTransport("direct")
if errBuild != nil {
t.Fatalf("BuildHTTPTransport returned error: %v", errBuild)
}
if mode != ModeDirect {
t.Fatalf("mode = %d, want %d", mode, ModeDirect)
}
if transport == nil {
t.Fatal("expected transport, got nil")
}
if transport.Proxy != nil {
t.Fatal("expected direct transport to disable proxy function")
}
}
func TestBuildHTTPTransportHTTPProxy(t *testing.T) {
t.Parallel()
transport, mode, errBuild := BuildHTTPTransport("http://proxy.example.com:8080")
if errBuild != nil {
t.Fatalf("BuildHTTPTransport returned error: %v", errBuild)
}
if mode != ModeProxy {
t.Fatalf("mode = %d, want %d", mode, ModeProxy)
}
if transport == nil {
t.Fatal("expected transport, got nil")
}
req, errRequest := http.NewRequest(http.MethodGet, "https://example.com", nil)
if errRequest != nil {
t.Fatalf("http.NewRequest returned error: %v", errRequest)
}
proxyURL, errProxy := transport.Proxy(req)
if errProxy != nil {
t.Fatalf("transport.Proxy returned error: %v", errProxy)
}
if proxyURL == nil || proxyURL.String() != "http://proxy.example.com:8080" {
t.Fatalf("proxy URL = %v, want http://proxy.example.com:8080", proxyURL)
}
defaultTransport := mustDefaultTransport(t)
if transport.ForceAttemptHTTP2 != defaultTransport.ForceAttemptHTTP2 {
t.Fatalf("ForceAttemptHTTP2 = %v, want %v", transport.ForceAttemptHTTP2, defaultTransport.ForceAttemptHTTP2)
}
if transport.IdleConnTimeout != defaultTransport.IdleConnTimeout {
t.Fatalf("IdleConnTimeout = %v, want %v", transport.IdleConnTimeout, defaultTransport.IdleConnTimeout)
}
if transport.TLSHandshakeTimeout != defaultTransport.TLSHandshakeTimeout {
t.Fatalf("TLSHandshakeTimeout = %v, want %v", transport.TLSHandshakeTimeout, defaultTransport.TLSHandshakeTimeout)
}
}
func TestBuildHTTPTransportSOCKS5ProxyInheritsDefaultTransportSettings(t *testing.T) {
t.Parallel()
transport, mode, errBuild := BuildHTTPTransport("socks5://proxy.example.com:1080")
if errBuild != nil {
t.Fatalf("BuildHTTPTransport returned error: %v", errBuild)
}
if mode != ModeProxy {
t.Fatalf("mode = %d, want %d", mode, ModeProxy)
}
if transport == nil {
t.Fatal("expected transport, got nil")
}
if transport.Proxy != nil {
t.Fatal("expected SOCKS5 transport to bypass http proxy function")
}
defaultTransport := mustDefaultTransport(t)
if transport.ForceAttemptHTTP2 != defaultTransport.ForceAttemptHTTP2 {
t.Fatalf("ForceAttemptHTTP2 = %v, want %v", transport.ForceAttemptHTTP2, defaultTransport.ForceAttemptHTTP2)
}
if transport.IdleConnTimeout != defaultTransport.IdleConnTimeout {
t.Fatalf("IdleConnTimeout = %v, want %v", transport.IdleConnTimeout, defaultTransport.IdleConnTimeout)
}
if transport.TLSHandshakeTimeout != defaultTransport.TLSHandshakeTimeout {
t.Fatalf("TLSHandshakeTimeout = %v, want %v", transport.TLSHandshakeTimeout, defaultTransport.TLSHandshakeTimeout)
}
}
func TestBuildHTTPTransportSOCKS5HProxy(t *testing.T) {
t.Parallel()
transport, mode, errBuild := BuildHTTPTransport("socks5h://proxy.example.com:1080")
if errBuild != nil {
t.Fatalf("BuildHTTPTransport returned error: %v", errBuild)
}
if mode != ModeProxy {
t.Fatalf("mode = %d, want %d", mode, ModeProxy)
}
if transport == nil {
t.Fatal("expected transport, got nil")
}
if transport.Proxy != nil {
t.Fatal("expected SOCKS5H transport to bypass http proxy function")
}
if transport.DialContext == nil {
t.Fatal("expected SOCKS5H transport to have custom DialContext")
}
}