This TLS Client is built upon https://github.com/Carcraftz/fhttp and https://github.com/Carcraftz/utls. Big thanks to all contributors so far. Sadly it seems that the original repositories are not maintained anymore.
Some people think it is enough to change the user-agent header of a request to let the server think that the client requesting a resource is a specific browser. Nowadays this is not enough, because the server might use a technique to detect the client browser which is called TLS Fingerprinting.
Even tho this article is about TLS Fingerprinting in NodeJS it well describes the technique in general. https://httptoolkit.tech/blog/tls-fingerprinting-node-js/#how-does-tls-fingerprinting-work
With this library you are able to create a http client implementing an interface which is similar to golangs net/http client interface. This TLS Client allows you to specify the Client (Browser and Version) you want to use, when requesting a server.
The Interface of the HTTP Client looks like the following and extends the base net/http Client Interface by some useful functions.
Most likely you will use the Do() function like you did before with net/http Client.
type HttpClient interface {
GetCookies(u *url.URL) []*http.Cookie
SetCookies(u *url.URL, cookies []*http.Cookie)
SetCookieJar(jar http.CookieJar)
GetCookieJar() http.CookieJar
SetProxy(proxyUrl string) error
GetProxy() string
SetFollowRedirect(followRedirect bool)
GetFollowRedirect() bool
CloseIdleConnections()
Do(req *http.Request) (*http.Response, error)
Get(url string) (resp *http.Response, err error)
Head(url string) (resp *http.Response, err error)
Post(url, contentType string, body io.Reader) (resp *http.Response, err error)
}package main
import (
"fmt"
"io"
"log"
http "github.com/bogdanfinn/fhttp"
tls_client "github.com/bogdanfinn/tls-client"
)
func main() {
jar := tls_client.NewCookieJar()
options := []tls_client.HttpClientOption{
tls_client.WithTimeoutSeconds(30),
tls_client.WithClientProfile(tls_client.Chrome_105),
tls_client.WithNotFollowRedirects(),
tls_client.WithCookieJar(jar), // create cookieJar instance and pass it as argument
}
client, err := tls_client.NewHttpClient(tls_client.NewNoopLogger(), options...)
if err != nil {
log.Println(err)
return
}
req, err := http.NewRequest(http.MethodGet, "https://tls.peet.ws/api/all", nil)
if err != nil {
log.Println(err)
return
}
req.Header = http.Header{
"accept": {"*/*"},
"accept-language": {"de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"},
"user-agent": {"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36"},
http.HeaderOrderKey: {
"accept",
"accept-language",
"user-agent",
},
}
resp, err := client.Do(req)
if err != nil {
log.Println(err)
return
}
defer resp.Body.Close()
log.Println(fmt.Sprintf("status code: %d", resp.StatusCode))
readBytes, err := io.ReadAll(resp.Body)
if err != nil {
log.Println(err)
return
}
log.Println(string(readBytes))
}https://bogdanfinn.gitbook.io/open-source-oasis/
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