78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package twitterscraper
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"time"
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)
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const bearerToken string = "AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA"
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// RequestAPI get JSON from frontend API and decodes it
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func (s *Scraper) RequestAPI(req *http.Request, target interface{}) error {
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if s.guestToken == "" || s.guestCreatedAt.Before(time.Now().Add(-time.Hour*3)) {
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err := s.GetGuestToken()
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if err != nil {
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return err
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}
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}
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req.Header.Set("Authorization", "Bearer "+bearerToken)
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req.Header.Set("X-Guest-Token", s.guestToken)
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resp, err := s.client.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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// private profiles return forbidden, but also data
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if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusForbidden {
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content, _ := ioutil.ReadAll(resp.Body)
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return fmt.Errorf("response status %s: %s", resp.Status, content)
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}
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if resp.Header.Get("X-Rate-Limit-Remaining") == "0" {
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s.guestToken = ""
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}
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return json.NewDecoder(resp.Body).Decode(target)
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}
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// GetGuestToken from Twitter API
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func (s *Scraper) GetGuestToken() error {
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req, err := http.NewRequest("POST", "https://api.twitter.com/1.1/guest/activate.json", nil)
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if err != nil {
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return err
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}
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req.Header.Set("Authorization", "Bearer "+bearerToken)
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resp, err := s.client.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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content, _ := ioutil.ReadAll(resp.Body)
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return fmt.Errorf("response status %s: %s", resp.Status, content)
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}
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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var jsn map[string]interface{}
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if err := json.Unmarshal(body, &jsn); err != nil {
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return err
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}
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var ok bool
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if s.guestToken, ok = jsn["guest_token"].(string); !ok {
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return fmt.Errorf("guest_token not found")
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}
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s.guestCreatedAt = time.Now()
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return nil
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}
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