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@mafredri mafredri/cdp_issue54.go
Last active Aug 20, 2018

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package main
import (
"context"
"fmt"
"log"
"net/http"
"time"
"github.com/mafredri/cdp"
"github.com/mafredri/cdp/devtool"
"github.com/mafredri/cdp/protocol/network"
"github.com/mafredri/cdp/protocol/page"
"github.com/mafredri/cdp/rpcc"
)
func main() {
err := run(5 * time.Second)
if err != nil {
log.Fatal(err)
}
}
func run(timeout time.Duration) error {
go func() {
srv := http.Server{
Addr: "localhost:8080",
Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.Header)
w.WriteHeader(200)
fmt.Fprintln(w, "Hello!")
}),
}
log.Fatal(srv.ListenAndServe())
}()
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
devt := devtool.New("http://127.0.0.1:9222")
pt, err := devt.Get(ctx, devtool.Page)
if err != nil {
pt, err = devt.Create(ctx)
if err != nil {
return err
}
}
conn, err := rpcc.DialContext(ctx, pt.WebSocketDebuggerURL)
if err != nil {
return err
}
defer conn.Close()
c := cdp.NewClient(conn)
domContent, err := c.Page.DOMContentEventFired(ctx)
if err != nil {
return err
}
defer domContent.Close()
if err = c.Page.Enable(ctx); err != nil {
return err
}
c.Network.Enable(ctx, nil)
err = c.Network.SetExtraHTTPHeaders(ctx,
network.NewSetExtraHTTPHeadersArgs(
[]byte(`{"Accept-Language": "en_US", "Boop": "Beep"}`),
),
)
if err != nil {
return err
}
navArgs := page.NewNavigateArgs("http://localhost:8080")
nav, err := c.Page.Navigate(ctx, navArgs)
if err != nil {
return err
}
if _, err = domContent.Recv(); err != nil {
return err
}
fmt.Printf("Page loaded with frame ID: %s\n", nav.FrameID)
return nil
}
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