feat: added os arch and release channel to desktop update requests to the file server

we now use blindVersionSignRequest

ts/OS.ts

@@ -15,3 +15,4 @@ export const isWindows = (minVersion?: string) => {
 };
 
 export const getOSArchitecture = () => os.arch();
+export const getOSPlatform = () => os.platform();

ts/session/apis/file_server_api/FileServerApi.ts

@@ -8,7 +8,7 @@ import {
 import { fromUInt8ArrayToBase64 } from '../../utils/String';
 import { NetworkTime } from '../../../util/NetworkTime';
 import { DURATION } from '../../constants';
-import { getOSArchitecture } from '../../../OS';
+import { getOSArchitecture, getOSPlatform } from '../../../OS';
 import type { ReleaseChannels } from '../../../updater/types';
 import { Storage } from '../../../util/storage';
 
@@ -16,7 +16,7 @@ export const fileServerHost = 'filev2.getsession.org';
 export const fileServerURL = `http://${fileServerHost}`;
 
 export const fileServerPubKey = 'da21e1d886c6fbaea313f75298bd64aab03a97ce985b46bb2dad9f2089c8ee59';
-const RELEASE_VERSION_ENDPOINT = '/session_version?platform=desktop';
+const RELEASE_VERSION_ENDPOINT = '/session_version';
 
 const POST_GET_FILE_ENDPOINT = '/file';
 
@@ -133,15 +133,23 @@ const parseStatusCodeFromOnionRequestV4 = (
  * This call is onion routed and so do not expose our ip to github nor the file server.
  */
 export const getLatestReleaseFromFileServer = async (
-  userEd25519SecretKey: Uint8Array
+  userEd25519SecretKey: Uint8Array,
+  releaseType?: ReleaseChannels
 ): Promise<string | null> => {
   const sigTimestampSeconds = NetworkTime.getNowWithNetworkOffsetSeconds();
   const blindedPkHex = await BlindingActions.blindVersionPubkey({
     ed25519SecretKey: userEd25519SecretKey,
   });
-  const signature = await BlindingActions.blindVersionSign({
+  const method = 'GET';
+  const releaseChannel = Storage.get('releaseChannel') as ReleaseChannels;
+  const endpoint = `${RELEASE_VERSION_ENDPOINT}?platform=desktop&os=${getOSPlatform()}&arch=${getOSArchitecture()}${releaseChannel ? `&release_channel=${releaseType || releaseChannel}` : ''}`;
+
+  const signature = await BlindingActions.blindVersionSignRequest({
     ed25519SecretKey: userEd25519SecretKey,
     sigTimestampSeconds,
+    sigMethod: method,
+    sigPath: endpoint,
+    sigBody: null,
   });
 
   const headers = {
@@ -150,16 +158,15 @@ export const getLatestReleaseFromFileServer = async (
     'X-FS-Signature': fromUInt8ArrayToBase64(signature),
   };
 
-  const releaseChannel = Storage.get('releaseChannel') as ReleaseChannels;
-  const endpoint = `${RELEASE_VERSION_ENDPOINT}&arch=${getOSArchitecture()}${releaseChannel ? `&releases=${releaseChannel}` : ''}`;
-  const result = await OnionSending.sendJsonViaOnionV4ToFileServer({
+  const params = {
     abortSignal: new AbortController().signal,
     endpoint,
-    method: 'GET',
+    method,
     stringifiedBody: null,
     headers,
     timeoutMs: 10 * DURATION.SECONDS,
-  });
+  };
+  const result = await OnionSending.sendJsonViaOnionV4ToFileServer(params);
 
   if (!batchGlobalIsSuccess(result) || parseStatusCodeFromOnionRequestV4(result) !== 200) {
     return null;