forked from Sansui233/proxypool
/
util.go
318 lines (283 loc) · 8.1 KB
/
util.go
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package healthcheck
import (
"context"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/netip"
"net/url"
"strconv"
"time"
"github.com/One-Piecs/proxypool/pkg/proxy"
C "github.com/metacubex/mihomo/constant"
)
// DO NOT EDIT. Copied from clash because it's an unexported function
func urlToMetadata(rawURL string) (addr C.Metadata, err error) {
u, err := url.Parse(rawURL)
if err != nil {
return
}
port := u.Port()
if port == "" {
switch u.Scheme {
case "https":
port = "443"
case "http":
port = "80"
default:
err = fmt.Errorf("%s scheme not Support", rawURL)
return
}
}
dstPortPort, _ := strconv.Atoi(port)
addr = C.Metadata{
// AddrType: C.AtypDomainName,
Host: u.Hostname(),
DstIP: netip.Addr{},
DstPort: uint16(dstPortPort),
}
return
}
func HTTPGetViaProxy(clashProxy C.Proxy, url string) error {
ctx, cancel := context.WithTimeout(context.Background(), defaultURLTestTimeout)
defer cancel()
addr, err := urlToMetadata(url)
if err != nil {
return err
}
conn, err := clashProxy.DialContext(ctx, &addr) // 建立到proxy server的connection,对Proxy的类别做了自适应相当于泛型
if err != nil {
return err
}
defer conn.Close()
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {
return err
}
req = req.WithContext(ctx)
transport := &http.Transport{
// Note: Dial specifies the dial function for creating unencrypted TCP connections.
// When httpClient sets this transport, it will use the tcp/udp connection returned from
// function Dial instead of default tcp/udp connection. It's the key to set custom proxy for http transport
Dial: func(string, string) (net.Conn, error) {
return conn, nil
},
// from http.DefaultTransport
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
client := http.Client{
Transport: transport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
if err != nil {
return err
}
resp.Body.Close()
return nil
}
func HTTPHeadViaProxy(clashProxy C.Proxy, url string) error {
ctx, cancel := context.WithTimeout(context.Background(), defaultURLTestTimeout)
defer cancel()
addr, err := urlToMetadata(url)
if err != nil {
return err
}
conn, err := clashProxy.DialContext(ctx, &addr) // 建立到proxy server的connection,对Proxy的类别做了自适应相当于泛型
if err != nil {
return err
}
defer conn.Close()
req, err := http.NewRequest(http.MethodHead, url, nil)
if err != nil {
return err
}
req = req.WithContext(ctx)
transport := &http.Transport{
// Note: Dial specifies the dial function for creating unencrypted TCP connections.
// When httpClient sets this transport, it will use the tcp/udp connection returned from
// function Dial instead of default tcp/udp connection. It's the key to set custom proxy for http transport
Dial: func(string, string) (net.Conn, error) {
return conn, nil
},
// from http.DefaultTransport
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
client := http.Client{
Transport: transport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
if err != nil {
return err
}
resp.Body.Close()
return nil
}
func HTTPGetBodyViaProxy(clashProxy C.Proxy, url string) ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), defaultURLTestTimeout)
defer cancel()
addr, err := urlToMetadata(url)
if err != nil {
return nil, err
}
conn, err := clashProxy.DialContext(ctx, &addr) // 建立到proxy server的connection,对Proxy的类别做了自适应相当于泛型
if err != nil {
return nil, err
}
defer conn.Close()
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
transport := &http.Transport{
// Note: Dial specifies the dial function for creating unencrypted TCP connections.
// When httpClient sets this transport, it will use the tcp/udp connection returned from
// function Dial instead of default tcp/udp connection. It's the key to set custom proxy for http transport
Dial: func(string, string) (net.Conn, error) {
return conn, nil
},
// from http.DefaultTransport
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
client := http.Client{
Transport: transport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
// read speedtest config file
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return body, nil
}
func HTTPGetBodyViaProxyWithTime(clashProxy C.Proxy, url string, t time.Duration) ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), t)
defer cancel()
addr, err := urlToMetadata(url)
if err != nil {
return nil, err
}
conn, err := clashProxy.DialContext(ctx, &addr) // 建立到proxy server的connection,对Proxy的类别做了自适应相当于泛型
if err != nil {
return nil, err
}
defer conn.Close()
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
transport := &http.Transport{
// Note: Dial specifies the dial function for creating unencrypted TCP connections.
// When httpClient sets this transport, it will use the tcp/udp connection returned from
// function Dial instead of default tcp/udp connection. It's the key to set custom proxy for http transport
Dial: func(string, string) (net.Conn, error) {
return conn, nil
},
// from http.DefaultTransport
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
client := http.Client{
Transport: transport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
// read speedtest config file
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return body, nil
}
func HTTPGetBodyForSpeedTest(clashProxy C.Proxy, url string, t time.Duration) error {
ctx, cancel := context.WithTimeout(context.Background(), t)
defer cancel()
addr, err := urlToMetadata(url)
if err != nil {
return err
}
conn, err := clashProxy.DialContext(ctx, &addr) // 建立到proxy server的connection,对Proxy的类别做了自适应相当于泛型
if err != nil {
return err
}
defer conn.Close()
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {
return err
}
req = req.WithContext(ctx)
transport := &http.Transport{
// Note: Dial specifies the dial function for creating unencrypted TCP connections.
// When httpClient sets this transport, it will use the tcp/udp connection returned from
// function Dial instead of default tcp/udp connection. It's the key to set custom proxy for http transport
Dial: func(string, string) (net.Conn, error) {
return conn, nil
},
// from http.DefaultTransport
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
client := http.Client{
Transport: transport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
// read speedtest config file
_, err = ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return nil
}
func checkErrorProxies(proxies []proxy.Proxy) bool {
if proxies == nil {
return false
}
if len(proxies) == 0 {
return false
}
if proxies[0] == nil {
return false
}
return true
}