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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"
"time"
"github.com/admpub/cr"
"github.com/admpub/nging/application/library/collector"
"github.com/chromedp/chromedp"
"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
}
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))
}
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)
}
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); 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
}