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allocator.go
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package chromedpEngine
import (
"context"
"github.com/chromedp/cdproto/dom"
"github.com/chromedp/cdproto/log"
"github.com/chromedp/cdproto/network"
"github.com/chromedp/cdproto/page"
"github.com/chromedp/cdproto/target"
"github.com/chromedp/chromedp"
"github.com/zqijzqj/mtSecKill/logs"
"math/rand"
"net/http"
"sync"
"time"
)
var DefaultOptions = []chromedp.ExecAllocatorOption{
chromedp.Flag("headless", false),
chromedp.Flag("hide-scrollbars", false),
chromedp.Flag("mute-audio", true),
chromedp.Flag("disable-infobars", true),
chromedp.Flag("enable-automation", false),
chromedp.Flag("ignore-certificate-errors", true),
chromedp.Flag("start-maximized", true),
//chromedp.Flag("blink-settings", "imagesEnabled=false"),
chromedp.Flag("disable-default-apps", false),
chromedp.Flag("no-sandbox", false),
// 隐身模式启动
//chromedp.Flag("incognito", true),
chromedp.Flag("disable-extensions", false),
chromedp.Flag("disable-plugins", false),
//chromedp.Flag("disable-software-rasterizer", true),
chromedp.NoDefaultBrowserCheck,
chromedp.DisableGPU,
chromedp.NoFirstRun,
}
var globalCtx *GlobalBackgroundCtx = nil
var mu sync.Mutex
type GlobalBackgroundCtx struct {
background context.Context
Cancel context.CancelFunc
}
func GetGlobalCtx() context.Context {
if globalCtx == nil {
NewGlobalCtx()
}
return globalCtx.background
}
func NewGlobalCtx() {
mu.Lock()
defer mu.Unlock()
if globalCtx != nil {
return
}
c, cc := context.WithCancel(context.Background())
globalCtx = &GlobalBackgroundCtx{
background: c,
Cancel: cc,
}
}
func CancelGlobalCtx() {
mu.Lock()
defer mu.Unlock()
if globalCtx == nil {
return
}
cc := globalCtx.Cancel
cc()
logs.PrintlnSuccess("cancel global ctx...")
globalCtx = nil
return
}
var UserAgent = []string{
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36",
"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0",
"Mozilla/5.0 (X11; U; Linux x86_64; zh-CN; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10 (maverick) Firefox/3.6.10",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 SE 2.X MetaSr 1.0",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 QIHU 360SE",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E; rv:11.0) like Gecko",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36 OPR/60.0.3255.84",
"Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; en) Presto/2.8.131 Version/11.11",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 UBrowser/6.2.4098.3 Safari/537.36",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3676.400 QQBrowser/10.4.3473.400",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.79 Safari/537.36 Maxthon/5.2.7.2500",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 BIDUBrowser/8.7 Safari/537.36",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36 QIHU 360EE",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1)",
"Mozilla/5.0 (Windows; U; Windows NT 6.0; en; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7",
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36",
}
func GetRandUserAgent() string {
RE:
al := len(UserAgent)
if al > 1 {
rand.Seed(time.Now().UnixNano())
return UserAgent[rand.Intn(al)]
}
goto RE
}
func AddDefaultOptions(option ...chromedp.ExecAllocatorOption) {
DefaultOptions = append(DefaultOptions, option...)
}
func RequestByCookie(ctx context.Context, req *http.Request) (*http.Response, error) {
httpClient := &http.Client{}
cookies, err := network.GetCookies().WithUrls([]string{req.URL.String()}).Do(ctx)
if err != nil {
return nil, err
}
for _, c := range cookies {
req.AddCookie(&http.Cookie{
Name: c.Name,
Value: c.Value,
})
}
return httpClient.Do(req)
}
func CreateOptions(opts ...chromedp.ExecAllocatorOption) []chromedp.ExecAllocatorOption {
options := append(chromedp.DefaultExecAllocatorOptions[:], DefaultOptions...)
options = append(options, opts...)
return options
}
func WaitDocumentUpdated(ctx context.Context) (<-chan struct{}, context.CancelFunc) {
ctxNew, ccNew := context.WithCancel(ctx)
_ = dom.Enable().Do(ctxNew)
_ = page.Enable().Do(ctxNew)
ch := make(chan struct{}, 1)
chromedp.ListenTarget(ctxNew, func(ev interface{}) {
isUpdated := false
switch ev.(type) {
case *dom.EventDocumentUpdated:
isUpdated = true
case *dom.EventCharacterDataModified:
isUpdated = true
case *target.EventTargetInfoChanged:
isUpdated = true
case *target.EventTargetCreated:
isUpdated = true
default:
return
}
if isUpdated {
select {
case <- ctxNew.Done():
case ch <- struct{}{}:
}
close(ch)
ccNew()
return
}
})
return ch, ccNew
}
func NewExecCtx(opts ...chromedp.ExecAllocatorOption) (context.Context, context.CancelFunc) {
topC, _ := context.WithCancel(GetGlobalCtx())
c, _ := chromedp.NewExecAllocator(topC, CreateOptions(opts...)...)
ctx, cancel := chromedp.NewContext(c)
return ctx, cancel
}
func NewExecRemoteCtx(remoteWs string, opts ...chromedp.ExecAllocatorOption) (context.Context, context.CancelFunc) {
topC, _ := context.WithCancel(GetGlobalCtx())
c, _ := chromedp.NewExecAllocator(topC, CreateOptions(opts...)...)
c, _ = chromedp.NewRemoteAllocator(c, remoteWs)
ctx, cancel := chromedp.NewContext(c)
return ctx, cancel
}
func NewExecAllocator(tasks chromedp.Tasks, opts ...chromedp.ExecAllocatorOption) error {
//超时设置
topC, topCC := context.WithCancel(GetGlobalCtx())
defer topCC()
c, cc := chromedp.NewExecAllocator(topC, CreateOptions(opts...)...)
defer cc()
ctx, cancel := chromedp.NewContext(c)
defer cancel()
_ = log.Disable().Do(ctx)
err := chromedp.Run(ctx, tasks)
logs.PrintlnSuccess("chromedp.Run end...")
if err != nil {
return err
}
return nil
}
//阻塞浏览器方法
func WaitAction(wait sync.WaitGroup) chromedp.ActionFunc {
return func(ctx context.Context) error {
wait.Add(1)
wait.Wait()
return nil
}
}