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chrome.go
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chrome.go
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/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package chrome
import (
"context"
"net/http"
"time"
"github.com/admpub/cr"
"github.com/chromedp/cdproto/cdp"
"github.com/chromedp/cdproto/network"
"github.com/chromedp/chromedp"
"github.com/nging-plugins/collector/application/library/collector"
"github.com/webx-top/echo"
)
func init() {
_ = chromedp.ByQuery
collector.Browsers[`chromedp`] = New()
}
func New() *Chrome {
return &Chrome{
Base: &collector.Base{},
}
}
type Chrome struct {
Browser *cr.Browser
*collector.Base
actions []chromedp.Action
}
func (s *Chrome) Start(opt echo.Store) (err error) {
if err = s.Base.Start(opt); err != nil {
return
}
chromePath := opt.String(`chromePath`)
options := []chromedp.ExecAllocatorOption{
//chromedp.WindowSize(800, 600),
}
if len(chromePath) > 0 {
options = append(options, chromedp.ExecPath(chromePath))
}
if len(s.Proxy) > 0 {
options = append(options, chromedp.ProxyServer(s.Proxy))
}
if len(s.UserAgent) > 0 {
options = append(options, chromedp.UserAgent(s.UserAgent))
}
s.Browser, err = cr.New(context.Background(), options...)
if err != nil {
return
}
if s.Timeout > 0 {
s.Browser.SetTimeout(time.Duration(s.Timeout) * time.Second)
}
if s.Base.Header != nil {
headers := map[string]interface{}{}
for k, v := range s.Base.Header {
headers[k] = v
}
s.actions = append(s.actions, network.SetExtraHTTPHeaders(network.Headers(headers)))
}
var cookies []*http.Cookie
if len(s.Base.Cookies) > 0 {
cookies = s.Base.Cookies
} else if len(s.Base.CookieString) > 0 {
header := http.Header{}
header.Add("Cookie", s.Base.CookieString)
request := http.Request{Header: header}
cookies = request.Cookies()
}
if len(cookies) > 0 {
actFn := func(ctx context.Context) error {
// add cookies to chrome
for _, cookie := range cookies {
netw := network.SetCookie(cookie.Name, cookie.Value)
// create cookie expiration
if cookie.Expires.IsZero() {
if cookie.MaxAge != 0 {
cookie.Expires = time.Now().Add(time.Duration(cookie.MaxAge) * time.Second)
expr := cdp.TimeSinceEpoch(cookie.Expires)
netw = netw.WithExpires(&expr)
}
} else {
expr := cdp.TimeSinceEpoch(cookie.Expires)
netw = netw.WithExpires(&expr)
}
switch cookie.SameSite {
case http.SameSiteDefaultMode:
case http.SameSiteLaxMode:
netw = netw.WithSameSite(network.CookieSameSiteLax)
case http.SameSiteStrictMode:
netw = netw.WithSameSite(network.CookieSameSiteStrict)
case http.SameSiteNoneMode:
netw = netw.WithSameSite(network.CookieSameSiteNone)
}
err := netw.WithDomain(cookie.Domain).WithPath(cookie.Path).WithSecure(cookie.Secure).
WithHTTPOnly(cookie.HttpOnly).
Do(ctx)
if err != nil {
return err
}
}
return nil
}
s.actions = append(s.actions, chromedp.ActionFunc(actFn))
}
return nil
}
func (s *Chrome) Close() error {
return s.Browser.Close()
}
func (s *Chrome) Name() string {
return `chromedp`
}
func (s *Chrome) Description() string {
return ``
}
func (s *Chrome) Do(pageURL string, data echo.Store) ([]byte, error) {
if err := s.Browser.Navigate(pageURL, s.actions...); err != nil {
return nil, err
}
/*
if err := s.Browser.RunAction(chromedp.WaitReady("body", chromedp.ByQuery)); err != nil {
return nil, err
}
// */
html, err := s.Browser.GetSource()
if err != nil {
return nil, err
}
s.Sleep()
return []byte(html), nil
}