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Use MSC4190 to provision devices for E2EE #48

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Use MSC4190 to provision devices for E2EE #48

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Use MSC4190 to provision devices for E2EE
sandhose Sep 13, 2024
a9cdac4
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sandhose Sep 13, 2024
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8 changes: 8 additions & 0 deletions src/appservice/Appservice.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,14 @@ export interface IAppserviceRegistration {
*/
"de.sorunome.msc2409.push_ephemeral"?: boolean;

/**
* ** Experimental **
*
* Should the AS use the new device management APIs. Optional.
* @see https://github.com/matrix-org/matrix-spec-proposals/pull/4190
*/
"io.element.msc4190"?: boolean;

// not interested in other options
}

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16 changes: 13 additions & 3 deletions src/appservice/Intent.ts
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@@ -1,3 +1,5 @@
import { randomUUID } from "crypto";

import {
DeviceKeyAlgorithm,
extractRequestError,
Expand Down Expand Up @@ -162,9 +164,17 @@ export class Intent {
}

if (!prepared) {
// XXX: We work around servers that don't support device_id impersonation
const accessToken = await Promise.resolve(storage?.readValue("accessToken"));
if (!accessToken) {
let accessToken;
if (this.options.registration["io.element.msc4190"]) {
// Generate a random device ID and create it
deviceId = randomUUID();
// Make sure the device is registered
await this.client.doRequest("PUT", `/_matrix/client/v3/devices/${deviceId}`, null, {});
this.makeClient(true);
this.client.impersonateUserId(this.userId, deviceId);
prepared = true;
} else if (!(accessToken = await Promise.resolve(storage?.readValue("accessToken")))) {
// XXX: We work around servers that don't support device_id impersonation
const loginBody = {
type: "m.login.application_service",
identifier: {
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