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w3m.go
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w3m.go
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package w3m
import (
"bufio"
"errors"
"net/http"
"strconv"
"strings"
"time"
"github.com/favbox/kooky"
"github.com/favbox/kooky/internal/cookies"
)
type w3mCookieStore struct {
cookies.DefaultCookieStore
}
var _ cookies.CookieStore = (*w3mCookieStore)(nil)
func ReadCookies(filename string, filters ...kooky.Filter) ([]*kooky.Cookie, error) {
s, err := cookieStore(filename, filters...)
if err != nil {
return nil, err
}
defer s.Close()
return s.ReadCookies(filters...)
}
func (s *w3mCookieStore) ReadCookies(filters ...kooky.Filter) ([]*kooky.Cookie, error) {
// cookie.c: void save_cookies(void){}
// https://github.com/tats/w3m/blob/169789b1480710712d587d5859fab9d93eb952a2/cookie.c#L429
if s == nil {
return nil, errors.New(`cookie store is nil`)
}
if err := s.Open(); err != nil {
return nil, err
} else if s.File == nil {
return nil, errors.New(`file is nil`)
}
var ret []*kooky.Cookie
scanner := bufio.NewScanner(s.File)
for scanner.Scan() {
// split line into fields
sp := strings.Split(scanner.Text(), "\t")
if len(sp) != 11 {
continue
}
exp, err := strconv.ParseInt(sp[3], 10, 64)
if err != nil {
continue
}
bitFlag, err := strconv.Atoi(sp[6])
if err != nil {
continue
}
// #defined in "fm.h"
const (
// cooUse int = 1 // COO_USE
cooSecure int = 2 // COO_SECURE
// cooDomain int = 4 // COO_DOMAIN
// cooPath int = 8 // COO_PATH
// cooDiscard int = 16 // COO_DISCARD
// cooOverride int = 32 // COO_OVERRIDE - user override of security checks
)
cookie := &kooky.Cookie{}
cookie.Name = sp[1]
cookie.Value = sp[2]
cookie.Path = sp[5]
cookie.Domain = sp[4]
cookie.Expires = time.Unix(exp, 0)
cookie.Secure = bitFlag&cooSecure != 0
// sp[6] // state management specification version
// sp[7] // port list
if !kooky.FilterCookie(cookie, filters...) {
continue
}
ret = append(ret, cookie)
}
return ret, nil
}
// CookieJar returns an initiated http.CookieJar based on the cookies stored by
// the w3m browser. Set cookies are memory stored and do not modify any
// browser files.
func CookieJar(filename string, filters ...kooky.Filter) (http.CookieJar, error) {
j, err := cookieStore(filename, filters...)
if err != nil {
return nil, err
}
defer j.Close()
if err := j.InitJar(); err != nil {
return nil, err
}
return j, nil
}
// CookieStore has to be closed with CookieStore.Close() after use.
func CookieStore(filename string, filters ...kooky.Filter) (kooky.CookieStore, error) {
return cookieStore(filename, filters...)
}
func cookieStore(filename string, filters ...kooky.Filter) (*cookies.CookieJar, error) {
s := &w3mCookieStore{}
s.FileNameStr = filename
s.BrowserStr = `w3m`
return &cookies.CookieJar{CookieStore: s}, nil
}
// TODO:
// change behaviour based on version (8th field) - current implementation is for version 0
// implement old v0 format recognition and use netscape parser