2021-09-07 17:36:50 +03:00
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package rui
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import (
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2021-11-07 09:43:13 +03:00
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"bytes"
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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"context"
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2021-09-07 17:36:50 +03:00
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_ "embed"
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"fmt"
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"io"
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"log"
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"math/rand"
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"net/http"
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2021-11-07 09:43:13 +03:00
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"os"
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2021-09-07 17:36:50 +03:00
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"os/exec"
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2021-11-07 09:43:13 +03:00
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"path/filepath"
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2021-09-07 17:36:50 +03:00
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"runtime"
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"strconv"
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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"strings"
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2021-11-07 09:43:13 +03:00
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"time"
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2021-09-07 17:36:50 +03:00
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)
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//go:embed app_scripts.js
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var defaultScripts string
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//go:embed app_styles.css
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var appStyles string
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//go:embed defaultTheme.rui
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var defaultThemeText string
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// Application - app interface
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type Application interface {
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Finish()
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nextSessionID() int
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removeSession(id int)
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}
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type application struct {
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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server *http.Server
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2022-01-30 00:25:46 +03:00
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params AppParams
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2021-09-07 17:36:50 +03:00
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createContentFunc func(Session) SessionContent
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sessions map[int]Session
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}
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2022-01-30 00:25:46 +03:00
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// AppParams defines parameters of the app
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type AppParams struct {
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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// Title - title of the app window/tab
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Title string
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// TitleColor - background color of the app window/tab (applied only for Safari and Chrome for Android)
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2022-01-30 00:25:46 +03:00
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TitleColor Color
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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// Icon - the icon file name
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Icon string
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// CertFile - path of a certificate for the server must be provided
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// if neither the Server's TLSConfig.Certificates nor TLSConfig.GetCertificate are populated.
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// If the certificate is signed by a certificate authority, the certFile should be the concatenation
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// of the server's certificate, any intermediates, and the CA's certificate.
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CertFile string
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// KeyFile - path of a private key for the server must be provided
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// if neither the Server's TLSConfig.Certificates nor TLSConfig.GetCertificate are populated.
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KeyFile string
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// Redirect80 - if true then the function of redirect from port 80 to 443 is created
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Redirect80 bool
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2022-01-30 00:25:46 +03:00
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}
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2021-09-07 17:36:50 +03:00
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func (app *application) getStartPage() string {
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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buffer.WriteString(`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>`)
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2022-01-30 00:25:46 +03:00
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buffer.WriteString(app.params.Title)
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2021-09-07 17:36:50 +03:00
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buffer.WriteString("</title>")
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2022-01-30 00:25:46 +03:00
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if app.params.Icon != "" {
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2021-09-07 17:36:50 +03:00
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buffer.WriteString(`
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<link rel="icon" href="`)
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2022-01-30 00:25:46 +03:00
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buffer.WriteString(app.params.Icon)
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buffer.WriteString(`">`)
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}
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if app.params.TitleColor != 0 {
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buffer.WriteString(`
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<meta name="theme-color" content="`)
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buffer.WriteString(app.params.TitleColor.cssString())
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2021-09-07 17:36:50 +03:00
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buffer.WriteString(`">`)
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}
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buffer.WriteString(`
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<base target="_blank" rel="noopener">
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<meta name="viewport" content="width=device-width">
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<style>`)
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buffer.WriteString(appStyles)
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buffer.WriteString(`</style>
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<script>`)
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buffer.WriteString(defaultScripts)
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buffer.WriteString(`</script>
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</head>
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<body>
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<div class="ruiRoot" id="ruiRootView"></div>
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<div class="ruiPopupLayer" id="ruiPopupLayer" style="visibility: hidden;" onclick="clickOutsidePopup(event)"></div>
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2021-11-07 09:43:13 +03:00
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<a id="ruiDownloader" download style="display: none;"></a>
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2021-09-07 17:36:50 +03:00
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</body>
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</html>`)
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return buffer.String()
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}
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func (app *application) Finish() {
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for _, session := range app.sessions {
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session.close()
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}
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := app.server.Shutdown(ctx); err != nil {
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log.Println(err.Error())
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}
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2021-09-07 17:36:50 +03:00
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}
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func (app *application) nextSessionID() int {
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n := rand.Intn(0x7FFFFFFE) + 1
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_, ok := app.sessions[n]
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for ok {
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n = rand.Intn(0x7FFFFFFE) + 1
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_, ok = app.sessions[n]
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}
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return n
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}
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func (app *application) removeSession(id int) {
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delete(app.sessions, id)
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}
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func (app *application) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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if ProtocolInDebugLog {
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DebugLogF("%s %s", req.Method, req.URL.Path)
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}
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switch req.Method {
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case "GET":
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switch req.URL.Path {
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case "/":
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w.WriteHeader(http.StatusOK)
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io.WriteString(w, app.getStartPage())
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case "/ws":
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if brige := CreateSocketBrige(w, req); brige != nil {
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go app.socketReader(brige)
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}
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default:
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filename := req.URL.Path[1:]
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if size := len(filename); size > 0 && filename[size-1] == '/' {
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filename = filename[:size-1]
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}
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2021-11-07 09:43:13 +03:00
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if !serveResourceFile(filename, w, req) &&
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!serveDownloadFile(filename, w, req) {
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2021-09-07 17:36:50 +03:00
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w.WriteHeader(http.StatusNotFound)
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}
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}
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}
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}
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func (app *application) socketReader(brige WebBrige) {
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var session Session
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events := make(chan DataObject, 1024)
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for {
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message, ok := brige.ReadMessage()
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if !ok {
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events <- NewDataObject("disconnect")
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return
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}
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if ProtocolInDebugLog {
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DebugLog(message)
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}
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if obj := ParseDataText(message); obj != nil {
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command := obj.Tag()
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switch command {
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case "startSession":
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answer := ""
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if session, answer = app.startSession(obj, events, brige); session != nil {
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if !brige.WriteMessage(answer) {
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return
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}
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session.onStart()
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go sessionEventHandler(session, events, brige)
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}
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case "reconnect":
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if sessionText, ok := obj.PropertyValue("session"); ok {
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if sessionID, err := strconv.Atoi(sessionText); err == nil {
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if session = app.sessions[sessionID]; session != nil {
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session.setBrige(events, brige)
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answer := allocStringBuilder()
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defer freeStringBuilder(answer)
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session.writeInitScript(answer)
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if !brige.WriteMessage(answer.String()) {
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return
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}
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session.onReconnect()
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go sessionEventHandler(session, events, brige)
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return
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}
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DebugLogF("Session #%d not exists", sessionID)
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} else {
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ErrorLog(`strconv.Atoi(sessionText) error: ` + err.Error())
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}
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} else {
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ErrorLog(`"session" key not found`)
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}
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answer := ""
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if session, answer = app.startSession(obj, events, brige); session != nil {
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if !brige.WriteMessage(answer) {
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return
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}
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session.onStart()
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go sessionEventHandler(session, events, brige)
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}
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case "answer":
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session.handleAnswer(obj)
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case "imageLoaded":
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session.imageManager().imageLoaded(obj, session)
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case "imageError":
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session.imageManager().imageLoadError(obj, session)
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default:
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events <- obj
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}
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}
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}
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}
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func sessionEventHandler(session Session, events chan DataObject, brige WebBrige) {
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for {
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data := <-events
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switch command := data.Tag(); command {
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case "disconnect":
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session.onDisconnect()
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return
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case "session-close":
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session.onFinish()
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session.App().removeSession(session.ID())
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brige.Close()
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case "session-pause":
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session.onPause()
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case "session-resume":
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session.onResume()
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2022-05-12 11:05:50 +03:00
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case "root-size":
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session.handleRootSize(data)
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2021-09-07 17:36:50 +03:00
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case "resize":
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session.handleResize(data)
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default:
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session.handleViewEvent(command, data)
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}
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}
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}
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func (app *application) startSession(params DataObject, events chan DataObject, brige WebBrige) (Session, string) {
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if app.createContentFunc == nil {
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return nil, ""
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}
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session := newSession(app, app.nextSessionID(), "", params)
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session.setBrige(events, brige)
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if !session.setContent(app.createContentFunc(session), session) {
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return nil, ""
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}
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app.sessions[session.ID()] = session
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answer := allocStringBuilder()
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defer freeStringBuilder(answer)
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answer.WriteString("sessionID = '")
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answer.WriteString(strconv.Itoa(session.ID()))
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answer.WriteString("';\n")
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session.writeInitScript(answer)
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answerText := answer.String()
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if ProtocolInDebugLog {
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DebugLog("Start session:")
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DebugLog(answerText)
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}
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|
return session, answerText
|
|
|
|
|
}
|
|
|
|
|
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
var apps = []*application{}
|
|
|
|
|
|
|
|
|
|
// StartApp - create the new application and start it
|
2022-01-30 00:25:46 +03:00
|
|
|
func StartApp(addr string, createContentFunc func(Session) SessionContent, params AppParams) {
|
2021-09-07 17:36:50 +03:00
|
|
|
app := new(application)
|
2022-05-12 11:05:50 +03:00
|
|
|
app.params = params
|
|
|
|
|
app.sessions = map[int]Session{}
|
2021-09-07 17:36:50 +03:00
|
|
|
app.createContentFunc = createContentFunc
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
apps = append(apps, app)
|
|
|
|
|
|
|
|
|
|
redirectAddr := ""
|
|
|
|
|
if index := strings.IndexRune(addr, ':'); index >= 0 {
|
|
|
|
|
redirectAddr = addr[:index] + ":80"
|
|
|
|
|
} else {
|
|
|
|
|
redirectAddr = addr + ":80"
|
|
|
|
|
if params.CertFile != "" && params.KeyFile != "" {
|
|
|
|
|
addr += ":443"
|
|
|
|
|
} else {
|
|
|
|
|
addr += ":80"
|
|
|
|
|
}
|
|
|
|
|
}
|
2022-01-30 00:25:46 +03:00
|
|
|
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
app.server = &http.Server{Addr: addr}
|
2022-01-30 00:25:46 +03:00
|
|
|
http.Handle("/", app)
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
|
|
|
|
|
serverRun := func(err error) {
|
|
|
|
|
if err != nil {
|
|
|
|
|
if err == http.ErrServerClosed {
|
|
|
|
|
log.Println(err)
|
|
|
|
|
} else {
|
|
|
|
|
log.Fatal(err)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if params.CertFile != "" && params.KeyFile != "" {
|
|
|
|
|
if params.Redirect80 {
|
|
|
|
|
redirectTLS := func(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
http.Redirect(w, r, "https://"+addr+r.RequestURI, http.StatusMovedPermanently)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
go func() {
|
|
|
|
|
serverRun(http.ListenAndServe(redirectAddr, http.HandlerFunc(redirectTLS)))
|
|
|
|
|
}()
|
|
|
|
|
}
|
|
|
|
|
serverRun(app.server.ListenAndServeTLS(params.CertFile, params.KeyFile))
|
|
|
|
|
} else {
|
|
|
|
|
serverRun(app.server.ListenAndServe())
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func FinishApp() {
|
|
|
|
|
for _, app := range apps {
|
|
|
|
|
app.Finish()
|
|
|
|
|
}
|
|
|
|
|
apps = []*application{}
|
2021-09-07 17:36:50 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func OpenBrowser(url string) bool {
|
|
|
|
|
var err error
|
|
|
|
|
|
|
|
|
|
switch runtime.GOOS {
|
|
|
|
|
case "linux":
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
for _, provider := range []string{"xdg-open", "x-www-browser", "www-browser"} {
|
|
|
|
|
if _, err = exec.LookPath(provider); err == nil {
|
|
|
|
|
if exec.Command(provider, url).Start(); err == nil {
|
|
|
|
|
return true
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2021-09-07 17:36:50 +03:00
|
|
|
case "windows":
|
|
|
|
|
err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
|
2021-09-07 17:36:50 +03:00
|
|
|
case "darwin":
|
|
|
|
|
err = exec.Command("open", url).Start()
|
Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
|
|
|
|
2021-09-07 17:36:50 +03:00
|
|
|
default:
|
|
|
|
|
err = fmt.Errorf("unsupported platform")
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return err != nil
|
|
|
|
|
}
|
2021-11-07 09:43:13 +03:00
|
|
|
|
|
|
|
|
type downloadFile struct {
|
|
|
|
|
filename string
|
|
|
|
|
path string
|
|
|
|
|
data []byte
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var currentDownloadId = int(rand.Int31())
|
|
|
|
|
var downloadFiles = map[string]downloadFile{}
|
|
|
|
|
|
|
|
|
|
func (session *sessionData) startDownload(file downloadFile) {
|
|
|
|
|
currentDownloadId++
|
|
|
|
|
id := strconv.Itoa(currentDownloadId)
|
|
|
|
|
downloadFiles[id] = file
|
|
|
|
|
session.runScript(fmt.Sprintf(`startDowndload("%s", "%s")`, id, file.filename))
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func serveDownloadFile(id string, w http.ResponseWriter, r *http.Request) bool {
|
|
|
|
|
if file, ok := downloadFiles[id]; ok {
|
|
|
|
|
delete(downloadFiles, id)
|
|
|
|
|
if file.data != nil {
|
|
|
|
|
http.ServeContent(w, r, file.filename, time.Now(), bytes.NewReader(file.data))
|
|
|
|
|
return true
|
|
|
|
|
} else if _, err := os.Stat(file.path); err == nil {
|
|
|
|
|
http.ServeFile(w, r, file.path)
|
|
|
|
|
return true
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return false
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// DownloadFile starts downloading the file on the client side.
|
|
|
|
|
func (session *sessionData) DownloadFile(path string) {
|
|
|
|
|
if _, err := os.Stat(path); err != nil {
|
|
|
|
|
ErrorLog(err.Error())
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
_, filename := filepath.Split(path)
|
|
|
|
|
session.startDownload(downloadFile{
|
|
|
|
|
filename: filename,
|
|
|
|
|
path: path,
|
|
|
|
|
data: nil,
|
|
|
|
|
})
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// DownloadFileData starts downloading the file on the client side. Arguments specify the name of the downloaded file and its contents
|
|
|
|
|
func (session *sessionData) DownloadFileData(filename string, data []byte) {
|
|
|
|
|
if data == nil {
|
|
|
|
|
ErrorLog("Invalid download data. Must be not nil.")
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
session.startDownload(downloadFile{
|
|
|
|
|
filename: filename,
|
|
|
|
|
path: "",
|
|
|
|
|
data: data,
|
|
|
|
|
})
|
|
|
|
|
}
|
