Adding headless docker example (NOT WORKING)
This commit is contained in:
Kenneth Shaw
parent
4ff7580243
commit
a5f5b4fbc2
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@ -26,9 +26,6 @@ const (
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)
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)
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var (
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var (
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// ErrInvalidProtocolVersion is the invalid protocol version error.
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ErrInvalidProtocolVersion = errors.New("invalid protocol version")
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// ErrUnsupportedProtocolType is the unsupported protocol type error.
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// ErrUnsupportedProtocolType is the unsupported protocol type error.
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ErrUnsupportedProtocolType = errors.New("unsupported protocol type")
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ErrUnsupportedProtocolType = errors.New("unsupported protocol type")
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@ -158,9 +155,9 @@ func (c *Client) loadProtocolInfo(ctxt context.Context) (string, string, error)
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}
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}
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if m := browserRE.FindAllStringSubmatch(v["Browser"], -1); len(m) != 0 {
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if m := browserRE.FindAllStringSubmatch(v["Browser"], -1); len(m) != 0 {
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c.ver = v["Protocol-Version"]
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c.typ = strings.ToLower(m[0][0])
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c.typ = strings.ToLower(m[0][0])
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}
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}
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c.ver = v["Protocol-Version"]
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}
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}
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return c.ver, c.typ, nil
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return c.ver, c.typ, nil
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@ -180,7 +177,7 @@ func (c *Client) newTarget(ctxt context.Context, buf []byte) (Target, error) {
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}
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}
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switch typ {
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switch typ {
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case "chrome", "chromium", "microsoft edge", "safari":
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case "chrome", "chromium", "microsoft edge", "safari", "":
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x := new(Chrome)
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x := new(Chrome)
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if buf != nil {
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if buf != nil {
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err = easyjson.Unmarshal(buf, x)
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err = easyjson.Unmarshal(buf, x)
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2
examples/headless/.gitignore
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2
examples/headless/.gitignore
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@ -0,0 +1,2 @@
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headless
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headless.exe
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17
examples/headless/README.md
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17
examples/headless/README.md
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@ -0,0 +1,17 @@
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# About headless
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This is a version of the simple example but with the chromedp settings changed
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to use the docker [yukinying/chrome-headless](yukinying/chrome-headless) image.
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## Running
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```sh
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# retrieve docker image
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docker pull yukinying/chrome-headless
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# start docker headless
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docker run -i -t --shm-size=256m --rm --name=chrome-headless -p=127.0.0.1:9222:9222 yukinying/chrome-headless about:blank
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# run chromedp headless example
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go build && ./headless
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```
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59
examples/headless/main.go
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59
examples/headless/main.go
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@ -0,0 +1,59 @@
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package main
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import (
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"context"
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"fmt"
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"io/ioutil"
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"log"
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"time"
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cdp "github.com/knq/chromedp"
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cdptypes "github.com/knq/chromedp/cdp"
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"github.com/knq/chromedp/client"
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)
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func main() {
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var err error
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// create context
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ctxt, cancel := context.WithCancel(context.Background())
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defer cancel()
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// create chrome
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c, err := cdp.New(ctxt, cdp.WithTargets(client.New().WatchPageTargets(ctxt)))
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if err != nil {
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log.Fatal(err)
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}
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// run task list
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var site, res string
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err = c.Run(ctxt, googleSearch("site:brank.as", "Easy Money Management", &site, &res))
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("saved screenshot of #testimonials from search result listing `%s` (%s)", res, site)
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}
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func googleSearch(q, text string, site, res *string) cdp.Tasks {
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var buf []byte
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sel := fmt.Sprintf(`//a[text()[contains(., '%s')]]`, text)
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return cdp.Tasks{
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cdp.Navigate(`https://www.google.com`),
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cdp.Sleep(2 * time.Second),
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cdp.WaitVisible(`#hplogo`, cdp.ByID),
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cdp.SendKeys(`#lst-ib`, q, cdp.ByID),
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cdp.Click(`input[name="btnK"]`, cdp.ByQuery),
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cdp.WaitNotVisible(`input[name="btnI"]`, cdp.ByQuery),
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cdp.Text(sel, res),
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cdp.Click(sel),
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cdp.Sleep(2 * time.Second),
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cdp.WaitVisible(`#footer`, cdp.ByQuery),
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cdp.WaitNotVisible(`div.v-middle > div.la-ball-clip-rotate`, cdp.ByQuery),
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cdp.Location(site),
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cdp.Screenshot(`#testimonials`, &buf, cdp.ByID),
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cdp.ActionFunc(func(context.Context, cdptypes.FrameHandler) error {
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return ioutil.WriteFile("testimonials.png", buf, 0644)
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}),
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}
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}
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17
testdata/alert.html
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17
testdata/alert.html
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@ -0,0 +1,17 @@
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<!doctype html>
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<html>
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<head>
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<title>javascript alert test</title>
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</head>
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<body>
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<div id="div1">
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<input id="input1" value="input value1">
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</div>
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<script>
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window.onload = function(e) {
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setTimeout(function() { alert("alert1"); }, 1000);
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setTimeout(function() { window.confirm("confirm1"); }, 2000);
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};
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</script>
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</body>
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</html>
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10
testdata/child1.html
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10
testdata/child1.html
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@ -0,0 +1,10 @@
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<html>
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<head>
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<title>child 1</title>
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</head>
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<body>
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<div id="child1">
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<p>child one</p>
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</div>
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</body>
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</html>
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10
testdata/child2.html
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10
testdata/child2.html
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<html>
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<head>
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<title>child 2</title>
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</head>
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<body>
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<div id="child2">
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<p>child two</p>
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</div>
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</body>
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</html>
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9
testdata/frameset.html
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9
testdata/frameset.html
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<html>
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<head>
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<title>frameset test</title>
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</head>
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<frameset cols="50%,*">
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<frame src="child1.html">
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<frame src="child2.html">
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</frameset>
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</html>
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