79 lines
1.3 KiB
Go
79 lines
1.3 KiB
Go
package windscribe
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import (
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"bufio"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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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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