Initial
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commit
bf737c3d5c
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wsp
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package main
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import (
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"context"
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"encoding/json"
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"os"
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"fmt"
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"strings"
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"bufio"
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"regexp"
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"io"
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"log"
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"net/http"
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"net/http/cookiejar"
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"net/url"
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"strconv"
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)
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const (
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READ_LIMIT int64 = 128 * 1024
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)
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type Auth struct {
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User string `json:"user"`
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Password string `json:"password"`
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Code string `json:"code"`
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}
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func main() {
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a := Auth{}
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err := json.NewDecoder(os.Stdin).Decode(&a)
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if err != nil {
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log.Fatal(err)
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}
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var PTransport http.RoundTripper = &http.Transport{Proxy: http.ProxyFromEnvironment}
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cli := client{
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hc: http.DefaultClient,
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auth: a,
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}
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cli.hc.Transport = PTransport
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cli.hc.Jar, err = cookiejar.New(nil)
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if err != nil {
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log.Fatal(err)
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}
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err = cli.matchingPort()
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if err != nil {
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log.Fatal(err)
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}
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}
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type client struct {
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hc *http.Client
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auth Auth
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}
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func (c *client) matchingPort() error {
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ctx := context.Background()
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req, err := http.NewRequestWithContext(ctx, "GET", "https://windscribe.com/login", nil)
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if err != nil {
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return err
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}
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fillReq(req)
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req.Header.Set("Accept", "*/*")
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_, err = c.hc.Do(req)
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if err != nil {
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return err
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}
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csrf, err := c.getCSRF(ctx)
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if err != nil {
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return err
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}
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err = c.doInit(ctx)
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if err != nil {
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return err
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}
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values := url.Values{
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"login": []string{"1"},
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"upgrade": []string{"0"},
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"csrf_time": []string{fmt.Sprint(csrf.Time)},
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"csrf_token": []string{csrf.Token},
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"username": []string{c.auth.User},
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"password": []string{c.auth.Password},
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"code": []string{c.auth.Code},
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}
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req, err = http.NewRequestWithContext(ctx, "POST", "https://windscribe.com/login", strings.NewReader(values.Encode()))
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if err != nil {
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return err
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}
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fillReq(req)
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resp, err := c.hc.Do(req)
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if err != nil {
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return err
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}
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if resp.StatusCode != 302 {
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return fmt.Errorf("login failed %d", resp.StatusCode)
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}
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csrf, err = c.getCSRFfromBody(ctx, resp.Body)
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if err != nil {
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return err
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}
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cleanupBody(resp.Body)
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ephVals := url.Values{
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"port": []string{""},
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"ctime": []string{fmt.Sprint(csrf.Time)},
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"ctoken": []string{csrf.Token},
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}
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req, err = http.NewRequestWithContext(ctx, "POST", "https://windscribe.com/staticips/postEphPort", strings.NewReader(ephVals.Encode()))
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if err != nil {
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return err
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}
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fillReq(req)
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req.Header.Set("referer", "https://windscribe.com/myaccount")
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resp, err = c.hc.Do(req)
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if err != nil {
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return err
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}
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io.Copy(os.Stderr, resp.Body)
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cleanupBody(resp.Body)
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return nil
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}
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func fillReq(r *http.Request) {
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r.Header.Set("Connection", "keep-alive")
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hdr := map[string]string{
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"cache-control": `max-age=0`,
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"sec-ch-ua": `"Not/A)Brand";v="99", "Google Chrome";v="115", "Chromium";v="115"`,
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"sec-ch-ua-mobile": `?0`,
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"sec-ch-ua-platform": `"macOS"`,
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"origin": `https://windscribe.com`,
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"dnt": `1`,
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"upgrade-insecure-requests": `1`,
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"content-type": `application/x-www-form-urlencoded`,
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"user-agent": `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36`,
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"accept": `text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7`,
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"sec-fetch-site": `same-origin`,
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"sec-fetch-mode": `navigate`,
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"sec-fetch-user": `?1`,
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"sec-fetch-dest": `document`,
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"referer": `https://windscribe.com/login`,
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"accept-language": `en-US,en;q=0.9,fr;q=0.8`,
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"sec-gpc": `1`,
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}
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for k, v := range hdr {
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r.Header.Set(k, v)
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}
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}
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type CSRF struct {
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Token string `json:"csrf_token"`
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Time int `json:"csrf_time"`
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}
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func (c *client) getCSRF(ctx context.Context) (*CSRF, error) {
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req, err := http.NewRequestWithContext(ctx, "POST", "https://res.windscribe.com/res/logintoken", strings.NewReader(""))
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if err != nil {
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return nil, err
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}
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fillReq(req)
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resp, err := c.hc.Do(req)
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if err != nil {
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return nil, err
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}
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var csrf CSRF
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decoder := json.NewDecoder(resp.Body)
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err = decoder.Decode(&csrf)
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if err != nil {
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return nil, err
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}
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cleanupBody(resp.Body)
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return &csrf, nil
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}
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var csrfRE = regexp.MustCompile(`^\s*csrf_(time|token) = '?([0-9a-f]+)'?;\s*$`)
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func (c *client) getCSRFfromBody(ctx context.Context, body io.Reader) (*CSRF, error) {
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csrf := CSRF{}
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scan := bufio.NewScanner(body)
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for scan.Scan() {
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ln := scan.Text()
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m := csrfRE.FindStringSubmatch(ln)
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if len(m) == 3 {
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var err error
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switch m[1] {
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case "time":
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csrf.Time, err = strconv.Atoi(m[2])
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if err != nil {
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return nil, err
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}
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case "token":
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csrf.Token = m[2]
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}
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}
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}
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if err := scan.Err(); err != nil {
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return nil, err
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}
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if csrf.Token == "" || csrf.Time == 0 {
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return nil, fmt.Errorf("getCSRFfromBody: csrf is %+v", csrf)
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}
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return &csrf, nil
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}
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func (c *client) doInit(ctx context.Context) (error) {
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req, err := http.NewRequestWithContext(ctx, "POST", "https://res.windscribe.com/res/init", strings.NewReader(url.Values{"wsref":[]string{"https://windscribe.com/"}}.Encode()))
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if err != nil {
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return err
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}
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req.Header.Set("Accept", "*/*")
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fillReq(req)
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resp, err := c.hc.Do(req)
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if err != nil {
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return err
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}
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cleanupBody(resp.Body)
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return nil
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}
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func cleanupBody(body io.ReadCloser) {
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io.Copy(io.Discard, &io.LimitedReader{
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R: body,
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N: READ_LIMIT,
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})
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body.Close()
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}
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