59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package generate
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import (
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"errors"
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"fmt"
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"io"
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"net/http"
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"net/http/cookiejar"
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"os"
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)
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// https://adventofcode.com/2024/day/{day}/answer
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func retrieveInput(day int) error {
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cookieValue := os.Getenv("COOKIE")
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if cookieValue == "" {
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return errors.New("COOKIE environment variable not set")
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}
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jar, err := cookiejar.New(nil)
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if err != nil {
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return err
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}
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client := &http.Client{Jar: jar}
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url := fmt.Sprintf("https://adventofcode.com/2024/day/%d/input", day)
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req, err := http.NewRequest("GET", url, 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("User-Agent", "github.com/C4theBomb/advent-of-code by c4patino@gmail.com")
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cookie := &http.Cookie{Name: "session", Value: cookieValue}
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req.AddCookie(cookie)
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resp, err := 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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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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if resp.StatusCode != http.StatusOK {
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return errors.New(fmt.Sprintf("Unexpected status code: %d\nBody: %s", resp.StatusCode, string(body)))
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}
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filename := fmt.Sprintf("./day%02d/input.txt", day)
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if err := os.WriteFile(filename, []byte(body), 0755); err != nil {
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return err
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}
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return nil
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}
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