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Use a local wrapper for Jitsi calls #4234
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| # Jitsi Wrapper | ||
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| **Note**: These are developer docs. Please consult your client's documentation for | ||
| instructions on setting up Jitsi. | ||
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| The react-sdk wraps all Jitsi call widgets in a local wrapper called `jitsi.html` | ||
| which takes several parameters: | ||
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| *Query string*: | ||
| * `widgetId`: The ID of the widget. This is needed for communication back to the | ||
| react-sdk. | ||
| * `parentUrl`: The URL of the parent window. This is also needed for | ||
| communication back to the react-sdk. | ||
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| *Hash/fragment (formatted as a query string)*: | ||
| * `conferenceDomain`: The domain to connect Jitsi Meet to. | ||
| * `conferenceId`: The room or conference ID to connect Jitsi Meet to. | ||
| * `isAudioOnly`: Boolean for whether this is a voice-only conference. May not | ||
| be present, should default to `false`. | ||
| * `displayName`: The display name of the user viewing the widget. May not | ||
| be present or could be null. | ||
| * `avatarUrl`: The HTTP(S) URL for the avatar of the user viewing the widget. May | ||
| not be present or could be null. | ||
| * `userId`: The MXID of the user viewing the widget. May not be present or could | ||
| be null. | ||
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| The react-sdk will assume that `jitsi.html` is at the path of wherever it is currently | ||
| being served. For example, `https://riot.im/develop/jitsi.html` or `vector://webapp/jitsi.html`. | ||
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| The `jitsi.html` wrapper can use the react-sdk's `WidgetApi` to communicate, making | ||
| it easier to actually implement the feature. |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| Copyright 2020 The Matrix.org Foundation C.I.C. | ||
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| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
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| http://www.apache.org/licenses/LICENSE-2.0 | ||
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| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| // Dev note: This is largely inspired by Dimension. Used with permission. | ||
| // /~https://github.com/turt2live/matrix-dimension/blob/4f92d560266635e5a3c824606215b84e8c0b19f5/web/app/shared/services/scalar/scalar-widget.api.ts | ||
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| import { randomString } from "matrix-js-sdk/src/randomstring"; | ||
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| export enum Capability { | ||
| Screenshot = "m.capability.screenshot", | ||
| Sticker = "m.sticker", | ||
| AlwaysOnScreen = "m.always_on_screen", | ||
| } | ||
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| export enum KnownWidgetActions { | ||
| GetSupportedApiVersions = "supported_api_versions", | ||
| TakeScreenshot = "screenshot", | ||
| GetCapabilities = "capabilities", | ||
| SendEvent = "send_event", | ||
| UpdateVisibility = "visibility", | ||
| ReceiveOpenIDCredentials = "openid_credentials", | ||
| SetAlwaysOnScreen = "set_always_on_screen", | ||
| } | ||
| export type WidgetAction = KnownWidgetActions | string; | ||
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| export enum WidgetApiType { | ||
| ToWidget = "toWidget", | ||
| FromWidget = "fromWidget", | ||
| } | ||
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| export interface WidgetRequest { | ||
| api: WidgetApiType; | ||
| widgetId: string; | ||
| requestId: string; | ||
| data: any; | ||
| action: WidgetAction; | ||
| } | ||
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| export interface ToWidgetRequest extends WidgetRequest { | ||
| api: WidgetApiType.ToWidget; | ||
| } | ||
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| export interface FromWidgetRequest extends WidgetRequest { | ||
| api: WidgetApiType.FromWidget; | ||
| response: any; | ||
| } | ||
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| /** | ||
| * Handles Riot <--> Widget interactions for embedded/standalone widgets. | ||
| */ | ||
| export class WidgetApi { | ||
| private origin: string; | ||
| private inFlightRequests: {[requestId: string]: (reply: FromWidgetRequest) => void} = {}; | ||
| private readyPromise: Promise<any>; | ||
| private readyPromiseResolve: () => void; | ||
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| constructor(currentUrl: string, private widgetId: string, private requestedCapabilities: string[]) { | ||
| this.origin = new URL(currentUrl).origin; | ||
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| this.readyPromise = new Promise<any>(resolve => this.readyPromiseResolve = resolve); | ||
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| window.addEventListener("message", event => { | ||
| if (event.origin !== this.origin) return; // ignore: invalid origin | ||
| if (!event.data) return; // invalid schema | ||
| if (event.data.widgetId !== this.widgetId) return; // not for us | ||
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| const payload = <WidgetRequest>event.data; | ||
| if (payload.api === WidgetApiType.ToWidget && payload.action) { | ||
| console.log(`[WidgetAPI] Got request: ${JSON.stringify(payload)}`); | ||
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| if (payload.action === KnownWidgetActions.GetCapabilities) { | ||
| this.onCapabilitiesRequest(<ToWidgetRequest>payload); | ||
| this.readyPromiseResolve(); | ||
| } else { | ||
| console.warn(`[WidgetAPI] Got unexpected action: ${payload.action}`); | ||
| } | ||
| } else if (payload.api === WidgetApiType.FromWidget && this.inFlightRequests[payload.requestId]) { | ||
| console.log(`[WidgetAPI] Got reply: ${JSON.stringify(payload)}`); | ||
| const handler = this.inFlightRequests[payload.requestId]; | ||
| delete this.inFlightRequests[payload.requestId]; | ||
| handler(<FromWidgetRequest>payload); | ||
| } else { | ||
| console.warn(`[WidgetAPI] Unhandled payload: ${JSON.stringify(payload)}`); | ||
| } | ||
| }); | ||
| } | ||
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| public waitReady(): Promise<any> { | ||
| return this.readyPromise; | ||
| } | ||
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| private replyToRequest(payload: ToWidgetRequest, reply: any) { | ||
| if (!window.parent) return; | ||
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| const request = JSON.parse(JSON.stringify(payload)); | ||
| request.response = reply; | ||
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| window.parent.postMessage(request, this.origin); | ||
| } | ||
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| private onCapabilitiesRequest(payload: ToWidgetRequest) { | ||
| return this.replyToRequest(payload, {capabilities: this.requestedCapabilities}); | ||
| } | ||
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| public callAction(action: WidgetAction, payload: any, callback: (reply: FromWidgetRequest) => void) { | ||
| if (!window.parent) return; | ||
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| const request: FromWidgetRequest = { | ||
| api: WidgetApiType.FromWidget, | ||
| widgetId: this.widgetId, | ||
| action: action, | ||
| requestId: randomString(160), | ||
| data: payload, | ||
| response: {}, // Not used at this layer - it's used when the client responds | ||
| }; | ||
| this.inFlightRequests[request.requestId] = callback; | ||
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| console.log(`[WidgetAPI] Sending request: `, request); | ||
| window.parent.postMessage(request, "*"); | ||
| } | ||
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| public setAlwaysOnScreen(onScreen: boolean): Promise<any> { | ||
| return new Promise<any>(resolve => { | ||
| this.callAction(KnownWidgetActions.SetAlwaysOnScreen, {value: onScreen}, resolve); | ||
| }); | ||
| } | ||
| } | ||
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Are these logs safe to keep in?
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Yes, they're already made by existing managers and Riot.