/
browser.go
219 lines (201 loc) · 5.58 KB
/
browser.go
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package playwright
import (
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
)
type browserImpl struct {
channelOwner
isConnected bool
shouldCloseConnectionOnClose bool
contexts []BrowserContext
browserType BrowserType
chromiumTracingPath *string
closeReason *string
}
func (b *browserImpl) BrowserType() BrowserType {
return b.browserType
}
func (b *browserImpl) IsConnected() bool {
b.RLock()
defer b.RUnlock()
return b.isConnected
}
func (b *browserImpl) NewContext(options ...BrowserNewContextOptions) (BrowserContext, error) {
overrides := map[string]interface{}{}
option := BrowserNewContextOptions{}
if len(options) == 1 {
option = options[0]
}
if option.AcceptDownloads != nil {
if *option.AcceptDownloads {
overrides["acceptDownloads"] = "accept"
} else {
overrides["acceptDownloads"] = "deny"
}
options[0].AcceptDownloads = nil
}
if option.ExtraHttpHeaders != nil {
overrides["extraHTTPHeaders"] = serializeMapToNameAndValue(options[0].ExtraHttpHeaders)
options[0].ExtraHttpHeaders = nil
}
if option.StorageStatePath != nil {
var storageState *OptionalStorageState
storageString, err := os.ReadFile(*options[0].StorageStatePath)
if err != nil {
return nil, fmt.Errorf("could not read storage state file: %w", err)
}
err = json.Unmarshal(storageString, &storageState)
if err != nil {
return nil, fmt.Errorf("could not parse storage state file: %w", err)
}
options[0].StorageState = storageState
options[0].StorageStatePath = nil
}
if option.NoViewport != nil && *options[0].NoViewport {
overrides["noDefaultViewport"] = true
options[0].NoViewport = nil
}
if option.RecordHarPath != nil {
overrides["recordHar"] = prepareRecordHarOptions(recordHarInputOptions{
Path: *options[0].RecordHarPath,
URL: options[0].RecordHarURLFilter,
Mode: options[0].RecordHarMode,
Content: options[0].RecordHarContent,
OmitContent: options[0].RecordHarOmitContent,
})
options[0].RecordHarPath = nil
options[0].RecordHarURLFilter = nil
options[0].RecordHarMode = nil
options[0].RecordHarContent = nil
options[0].RecordHarOmitContent = nil
}
channel, err := b.channel.Send("newContext", options, overrides)
if err != nil {
return nil, err
}
context := fromChannel(channel).(*browserContextImpl)
context.browser = b
b.browserType.(*browserTypeImpl).didCreateContext(context, &option, nil)
return context, nil
}
func (b *browserImpl) NewPage(options ...BrowserNewPageOptions) (Page, error) {
opts := make([]BrowserNewContextOptions, 0)
if len(options) == 1 {
opts = append(opts, BrowserNewContextOptions(options[0]))
}
context, err := b.NewContext(opts...)
if err != nil {
return nil, err
}
page, err := context.NewPage()
if err != nil {
return nil, err
}
page.(*pageImpl).ownedContext = context
context.(*browserContextImpl).ownedPage = page
return page, nil
}
func (b *browserImpl) NewBrowserCDPSession() (CDPSession, error) {
channel, err := b.channel.Send("newBrowserCDPSession")
if err != nil {
return nil, err
}
cdpSession := fromChannel(channel).(*cdpSessionImpl)
return cdpSession, nil
}
func (b *browserImpl) Contexts() []BrowserContext {
b.Lock()
defer b.Unlock()
return b.contexts
}
func (b *browserImpl) Close(options ...BrowserCloseOptions) (err error) {
if len(options) == 1 {
b.closeReason = options[0].Reason
}
if b.shouldCloseConnectionOnClose {
err = b.connection.Stop()
} else if b.closeReason != nil {
_, err = b.channel.Send("close", map[string]interface{}{
"reason": b.closeReason,
})
} else {
_, err = b.channel.Send("close")
}
if err != nil && !errors.Is(err, ErrTargetClosed) {
return fmt.Errorf("close browser failed: %w", err)
}
return nil
}
func (b *browserImpl) Version() string {
return b.initializer["version"].(string)
}
func (b *browserImpl) StartTracing(options ...BrowserStartTracingOptions) error {
overrides := map[string]interface{}{}
option := BrowserStartTracingOptions{}
if len(options) == 1 {
option = options[0]
}
if option.Page != nil {
overrides["page"] = option.Page.(*pageImpl).channel
option.Page = nil
}
if option.Path != nil {
b.chromiumTracingPath = option.Path
option.Path = nil
}
_, err := b.channel.Send("startTracing", option, overrides)
return err
}
func (b *browserImpl) StopTracing() ([]byte, error) {
channel, err := b.channel.Send("stopTracing")
if err != nil {
return nil, err
}
artifact := fromChannel(channel).(*artifactImpl)
binary, err := artifact.ReadIntoBuffer()
if err != nil {
return nil, err
}
err = artifact.Delete()
if err != nil {
return binary, err
}
if b.chromiumTracingPath != nil {
err := os.MkdirAll(filepath.Dir(*b.chromiumTracingPath), 0o777)
if err != nil {
return binary, err
}
err = os.WriteFile(*b.chromiumTracingPath, binary, 0o644)
if err != nil {
return binary, err
}
}
return binary, nil
}
func (b *browserImpl) onClose() {
b.Lock()
if b.isConnected {
b.isConnected = false
b.Unlock()
b.Emit("disconnected", b)
return
}
b.Unlock()
}
func (b *browserImpl) OnDisconnected(fn func(Browser)) {
b.On("disconnected", fn)
}
func newBrowser(parent *channelOwner, objectType string, guid string, initializer map[string]interface{}) *browserImpl {
b := &browserImpl{
isConnected: true,
contexts: make([]BrowserContext, 0),
}
b.createChannelOwner(b, parent, objectType, guid, initializer)
// convert parent to *browserTypeImpl
b.browserType = newBrowserType(parent.parent, parent.objectType, parent.guid, parent.initializer)
b.channel.On("close", b.onClose)
return b
}