mirror of
https://github.com/haorendashu/nowser.git
synced 2025-12-17 09:54:19 +01:00
try to add linux webview support
This commit is contained in:
haorendashu
420
lib/component/webview/webview_linux_component.dart
Normal file
420
lib/component/webview/webview_linux_component.dart
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@@ -0,0 +1,420 @@
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:nostr_sdk/event.dart';
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import 'package:nostr_sdk/utils/string_util.dart';
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import 'package:nowser/component/webview/web_info.dart';
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import 'package:nowser/const/app_type.dart';
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import 'package:nowser/const/auth_type.dart';
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import 'package:nowser/main.dart';
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import 'package:nowser/provider/permission_check_mixin.dart';
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import 'package:webview_cef/webview_cef.dart';
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import 'package:webview_cef/src/webview_inject_user_script.dart';
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import '../../data/app.dart';
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class WebViewLinuxComponent extends StatefulWidget {
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WebInfo webInfo;
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Function(WebInfo, WebViewController) onWebViewCreated;
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Function(WebInfo, WebViewController, String?) onTitleChanged;
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Function(WebInfo, WebViewController, String?) onUrlChanged;
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Function(WebInfo, WebViewController) onLoadStop;
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WebViewLinuxComponent(
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this.webInfo,
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this.onWebViewCreated,
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this.onTitleChanged,
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this.onUrlChanged,
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this.onLoadStop,
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);
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@override
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State<StatefulWidget> createState() {
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return _WebViewLinuxComponent();
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}
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}
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class _WebViewLinuxComponent extends State<WebViewLinuxComponent>
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with PermissionCheckMixin {
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late WebViewController controller;
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double progress = 0;
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Set<JavascriptChannel> javascriptChannels = {};
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InjectUserScripts injectScript = InjectUserScripts();
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String url = "";
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String title = "";
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@override
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void initState() {
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super.initState();
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initInjectScript();
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initJSHandle();
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controller = WebviewManager().createWebView(
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loading: const Text("Loading"),
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injectUserScripts: injectScript);
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controller.setWebviewListener(WebviewEventsListener(
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onTitleChanged: (title) {
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title = title;
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widget.onTitleChanged(widget.webInfo, controller, title);
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},
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onUrlChanged: (url) {
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url = url;
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widget.onUrlChanged(widget.webInfo, controller, url);
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},
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onConsoleMessage: (int level, String message, String source, int line) {
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print("$level $source $line $message");
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},
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// onLoadStart: (controller, url) {
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// },
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onLoadEnd: (controller, url) {
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widget.onLoadStop(widget.webInfo, controller);
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},
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));
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controller.initialize(widget.webInfo.url).then((v) {
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controller.setJavaScriptChannels(javascriptChannels);
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setState(() {
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inited = true;
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});
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// controller.openDevTools();
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});
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}
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var inited = false;
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@override
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Widget build(BuildContext context) {
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return Container(
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child: inited ? controller.webviewWidget : controller.loadingWidget,
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);
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}
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Future<void> nip07Reject(String resultId, String contnet) async {
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var script = "window.nostr.reject(\"$resultId\", \"${contnet}\");";
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await controller.executeJavaScript(script);
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}
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void initJSHandle() {
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javascriptChannels.add(JavascriptChannel(name: "NowserJSgetPublicKey",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSgetPublicKey $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.GET_PUBLIC_KEY,
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(app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) {
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print("confirm get pubkey");
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var pubkey = app.pubkey;
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var script = "window.nostr.callback(\"$resultId\", \"$pubkey\");";
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controller.executeJavaScript(script);
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});
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSsignEvent",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSsignEvent $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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var content = jsonObj["msg"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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try {
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var eventObj = jsonDecode(content);
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var eventKind = eventObj["kind"];
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if (eventKind is int) {
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checkPermission(context, AppType.WEB, code, AuthType.SIGN_EVENT,
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eventKind: eventKind, authDetail: content, (app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) async {
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var tags = eventObj["tags"];
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Event? event = Event(app.pubkey!, eventObj["kind"], tags ?? [],
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eventObj["content"],
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createdAt: eventObj["created_at"]);
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event = await signer.signEvent(event);
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if (event == null) {
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return;
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}
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var eventResultStr = jsonEncode(event.toJson());
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// TODO this method to handle " may be error
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eventResultStr = eventResultStr.replaceAll("\"", "\\\"");
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var script =
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"window.nostr.callback(\"$resultId\", JSON.parse(\"$eventResultStr\"));";
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controller.executeJavaScript(script);
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});
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}
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} catch (e) {
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nip07Reject(resultId, "Sign fail");
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}
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSgetRelays",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSgetRelays $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.GET_RELAYS, (app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) {
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// TODO handle getRelays
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// var app = appProvider.getApp(AppType.WEB, code);
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// if (app != null) {
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// var relayMaps = {};
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// var relayAddrs = relayProvider.relayAddrs;
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// for (var relayAddr in relayAddrs) {
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// relayMaps[relayAddr] = {"read": true, "write": true};
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// }
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// var resultStr = jsonEncode(relayMaps);
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// resultStr = resultStr.replaceAll("\"", "\\\"");
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// var script =
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// "window.nostr.callback(\"$resultId\", JSON.parse(\"$resultStr\"));";
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// webViewController!.evaluateJavascript(source: script);
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// }
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});
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSnip04encrypt",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSnip04encrypt $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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var msg = jsonObj["msg"];
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if (msg != null && msg is Map) {
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var pubkey = msg["pubkey"];
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var plaintext = msg["plaintext"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.NIP04_ENCRYPT,
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(app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) async {
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var resultStr = await signer.encrypt(pubkey, plaintext);
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if (StringUtil.isBlank(resultStr)) {
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return;
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}
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var script =
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"window.nostr.callback(\"$resultId\", \"$resultStr\");";
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controller.executeJavaScript(script);
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});
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}
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSnip04decrypt",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSnip04decrypt $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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var msg = jsonObj["msg"];
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if (msg != null && msg is Map) {
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var pubkey = msg["pubkey"];
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var ciphertext = msg["ciphertext"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.NIP04_DECRYPT,
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(app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) async {
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var app = appProvider.getApp(AppType.WEB, code);
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if (app != null) {
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var resultStr = await signer.decrypt(pubkey, ciphertext);
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if (StringUtil.isBlank(resultStr)) {
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return;
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}
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var script =
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"window.nostr.callback(\"$resultId\", \"$resultStr\");";
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controller.executeJavaScript(script);
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}
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});
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}
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSnip44encrypt",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSnip44encrypt $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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var msg = jsonObj["msg"];
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if (msg != null && msg is Map) {
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var pubkey = msg["pubkey"];
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var plaintext = msg["plaintext"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.NIP44_ENCRYPT,
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(app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) async {
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var resultStr = await signer.nip44Encrypt(pubkey, plaintext);
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if (StringUtil.isBlank(resultStr)) {
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return;
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}
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var script =
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"window.nostr.callback(\"$resultId\", \"$resultStr\");";
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controller.executeJavaScript(script);
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});
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}
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},)
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);
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javascriptChannels.add(JavascriptChannel(name: "NowserJSnip44decrypt",
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onMessageReceived: (javascriptMessage) async {
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var jsMsg = javascriptMessage.message;
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print("NowserJSnip44decrypt $jsMsg");
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var jsonObj = jsonDecode(jsMsg);
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var resultId = jsonObj["resultId"];
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var msg = jsonObj["msg"];
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if (msg != null && msg is Map) {
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var pubkey = msg["pubkey"];
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var ciphertext = msg["ciphertext"];
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String? code = await getCode();
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if (code == null) {
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return;
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}
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checkPermission(context, AppType.WEB, code, AuthType.NIP44_DECRYPT,
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(app) {
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nip07Reject(resultId, "Forbid");
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}, (app, signer) async {
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var resultStr = await signer.nip44Decrypt(pubkey, ciphertext);
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if (StringUtil.isBlank(resultStr)) {
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return;
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}
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var script =
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"window.nostr.callback(\"$resultId\", \"$resultStr\");";
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controller.executeJavaScript(script);
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});
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}
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},)
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);
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}
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void initInjectScript() {
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injectScript.add(UserScript("""
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window.nostr = {
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_call(channel, message) {
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return new Promise((resolve, reject) => {
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var resultId = "callbackResult_" + Math.floor(Math.random() * 100000000);
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var arg = {"resultId": resultId};
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if (message) {
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arg["msg"] = message;
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}
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// var argStr = JSON.stringify(arg);
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// window.flutter_inappwebview
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// .callHandler(channel, argStr);
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channel(arg);
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window.nostr._requests[resultId] = {resolve, reject}
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});
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},
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_requests: {},
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callback(resultId, message) {
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window.nostr._requests[resultId].resolve(message);
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},
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reject(resultId, message) {
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window.nostr._requests[resultId].reject(message);
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},
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async getPublicKey() {
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return window.nostr._call(NowserJSgetPublicKey);
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},
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async signEvent(event) {
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return window.nostr._call(NowserJSsignEvent, JSON.stringify(event));
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},
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async getRelays() {
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return window.nostr._call(NowserJSgetRelays);
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},
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nip04: {
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async encrypt(pubkey, plaintext) {
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return window.nostr._call(NowserJSnip04encrypt, {"pubkey": pubkey, "plaintext": plaintext});
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},
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async decrypt(pubkey, ciphertext) {
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return window.nostr._call(NowserJSnip04decrypt, {"pubkey": pubkey, "ciphertext": ciphertext});
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},
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},
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nip44: {
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async encrypt(pubkey, plaintext) {
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return window.nostr._call(NowserJSnip44encrypt, {"pubkey": pubkey, "plaintext": plaintext});
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},
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async decrypt(pubkey, ciphertext) {
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return window.nostr._call(NowserJSnip44decrypt, {"pubkey": pubkey, "ciphertext": ciphertext});
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},
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},
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};
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""", ScriptInjectTime.LOAD_START));
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// injectScript.add(UserScript("console.log(window.nostr);", ScriptInjectTime.LOAD_END));
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}
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Future<String?> getCode() async {
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if (StringUtil.isBlank(url)) {
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url = widget.webInfo.url;
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}
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if (StringUtil.isNotBlank(url)) {
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var uri = Uri.parse(url);
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return uri.host;
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}
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return null;
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}
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@override
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Future<App> getApp(int appType, String code) async {
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String? name = title;
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String? image;
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// var favicons = await webViewController!.getFavicons();
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// if (favicons.isNotEmpty) {
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// image = favicons.first.url.toString();
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// }
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return App(appType: appType, code: code, name: name, image: image);
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}
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@override
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void dispose() {
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super.dispose();
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controller.dispose();
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}
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}
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Block a user