Merge branch 'poljar/seshat-pr' into develop

This commit is contained in:
Damir Jelić 2019-11-26 18:47:58 +01:00
commit 222fea969d
5 changed files with 328 additions and 1 deletions

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@ -73,3 +73,11 @@ improves the device verification experience by allowing you to verify a user
instead of verifying each of their devices.
This feature is still in development and will be landing in several chunks.
## Event indexing and E2EE search support using Seshat (`feature_event_indexing`)
Adds support for search in E2E encrypted rooms. This enables an event indexer
that downloads, stores, and indexes room messages for E2E encrypted rooms.
The existing search will transparently work for encrypted rooms just like it
does for non-encrypted.

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@ -0,0 +1,59 @@
# Native Node Modules
For some features, the desktop version of Riot can make use of native Node
modules. These allow Riot to integrate with the desktop in ways that a browser
cannot.
While native modules enable powerful new features, they must be complied for
each operating system. For official Riot releases, we will always build these
modules from source to ensure we can trust the compiled output. In the future,
we may offer a pre-compiled path for those who want to use these features in a
custom build of Riot without installing the various build tools required.
Do note that compiling a module for a particular operating system
(Linux/macOS/Windows) will need to be done on that operating system.
Cross-compiling from a host OS for a different target OS may be possible, but
we don't support this flow with Riot dependencies at this time.
At the moment, we need to make some changes to the Riot release process before
we can support native Node modules at release time, so these features are
currently disabled by default until that is resolved. The following sections
explain the manual steps you can use with a custom build of Riot to enable
these features if you'd like to try them out.
## Adding Seshat for search in E2E encrypted rooms
Seshat is a native Node module that adds support for local event indexing and
full text search in E2E encrypted rooms.
Since Seshat is written in Rust, the Rust compiler and related tools need to be
installed before installing Seshat itself. To install Rust please consult the
official Rust [documentation](https://www.rust-lang.org/tools/install).
Seshat also depends on the SQLCipher library to store its data in encrypted form
on disk. You'll need to install it via your OS package manager.
After installing the Rust compiler and SQLCipher, Seshat support can be added
using yarn inside the `electron_app/` directory:
yarn add matrix-seshat
After this is done the Electron version of Riot can be run from the main folder
as usual using:
yarn electron
If for some reason recompilation of Seshat is needed, e.g. when using a
development version of Seshat using `yarn link`, or if the initial compilation was
done for the wrong electron version, Seshat can be recompiled with the
`electron-build-env` tool. Again from the `electron_app/` directory:
yarn add electron-build-env
Recompiling Seshat itself can be done like so:
yarn run electron-build-env -- --electron 6.1.1 -- neon build matrix-seshat --release`
Please make sure to include all the `--` as well as the `--release` command line
switch at the end. Modify your electron version accordingly depending on the
version that is installed on your system.

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@ -40,6 +40,16 @@ const { migrateFromOldOrigin } = require('./originMigrator');
const windowStateKeeper = require('electron-window-state');
const Store = require('electron-store');
const fs = require('fs');
const afs = fs.promises;
let Seshat = null;
try {
Seshat = require('matrix-seshat');
} catch (e) {
}
if (argv["help"]) {
console.log("Options:");
console.log(" --profile-dir {path}: Path to where to store the profile.");
@ -94,8 +104,11 @@ try {
// Could not load local config, this is expected in most cases.
}
const eventStorePath = path.join(app.getPath('userData'), 'EventStore');
const store = new Store({ name: "electron-config" });
let eventIndex = null;
let mainWindow = null;
global.appQuitting = false;
@ -225,6 +238,7 @@ ipcMain.on('ipcCall', async function(ev, payload) {
case 'getConfig':
ret = vectorConfig;
break;
default:
mainWindow.webContents.send('ipcReply', {
id: payload.id,
@ -239,6 +253,154 @@ ipcMain.on('ipcCall', async function(ev, payload) {
});
});
ipcMain.on('seshat', async function(ev, payload) {
if (!mainWindow) return;
const sendError = (id, e) => {
const error = {
message: e.message
}
mainWindow.webContents.send('seshatReply', {
id:id,
error: error
});
}
const args = payload.args || [];
let ret;
switch (payload.name) {
case 'supportsEventIndexing':
if (Seshat === null) ret = false;
else ret = true;
break;
case 'initEventIndex':
if (eventIndex === null) {
try {
await afs.mkdir(eventStorePath, {recursive: true});
eventIndex = new Seshat(eventStorePath, {passphrase: "DEFAULT_PASSPHRASE"});
} catch (e) {
sendError(payload.id, e);
return;
}
}
break;
case 'closeEventIndex':
eventIndex = null;
break;
case 'deleteEventIndex':
const deleteFolderRecursive = async(p) => {
for (let entry of await afs.readdir(p)) {
const curPath = path.join(p, entry);
await afs.unlink(curPath);
}
}
try {
await deleteFolderRecursive(eventStorePath);
} catch (e) {
}
break;
case 'isEventIndexEmpty':
if (eventIndex === null) ret = true;
else ret = await eventIndex.isEmpty();
break;
case 'addEventToIndex':
try {
eventIndex.addEvent(args[0], args[1]);
} catch (e) {
sendError(payload.id, e);
return;
}
break;
case 'commitLiveEvents':
try {
ret = await eventIndex.commit();
} catch (e) {
sendError(payload.id, e);
return;
}
break;
case 'searchEventIndex':
try {
ret = await eventIndex.search(args[0]);
} catch (e) {
sendError(payload.id, e);
return;
}
break;
case 'addHistoricEvents':
if (eventIndex === null) ret = false;
else {
try {
ret = await eventIndex.addHistoricEvents(
args[0], args[1], args[2]);
} catch (e) {
sendError(payload.id, e);
return;
}
}
break;
case 'removeCrawlerCheckpoint':
if (eventIndex === null) ret = false;
else {
try {
ret = await eventIndex.removeCrawlerCheckpoint(args[0]);
} catch (e) {
sendError(payload.id, e);
return;
}
}
break;
case 'addCrawlerCheckpoint':
if (eventIndex === null) ret = false;
else {
try {
ret = await eventIndex.addCrawlerCheckpoint(args[0]);
} catch (e) {
sendError(payload.id, e);
return;
}
}
break;
case 'loadCheckpoints':
if (eventIndex === null) ret = [];
else {
try {
ret = await eventIndex.loadCheckpoints();
} catch (e) {
ret = [];
}
}
break;
default:
mainWindow.webContents.send('seshatReply', {
id: payload.id,
error: "Unknown IPC Call: " + payload.name,
});
return;
}
mainWindow.webContents.send('seshatReply', {
id: payload.id,
reply: ret,
});
});
app.commandLine.appendSwitch('--enable-usermedia-screen-capturing');
const gotLock = app.requestSingleInstanceLock();

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@ -20,7 +20,8 @@
"feature_many_integration_managers": "labs",
"feature_mjolnir": "labs",
"feature_dm_verification": "labs",
"feature_cross_signing": "labs"
"feature_cross_signing": "labs",
"feature_event_indexing": "labs"
},
"welcomeUserId": "@riot-bot:matrix.org",
"piwik": {

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@ -20,6 +20,7 @@ limitations under the License.
*/
import VectorBasePlatform, {updateCheckStatusEnum} from './VectorBasePlatform';
import BaseEventIndexManager from 'matrix-react-sdk/lib/indexing/BaseEventIndexManager';
import dis from 'matrix-react-sdk/lib/dispatcher';
import { _t } from 'matrix-react-sdk/lib/languageHandler';
import rageshake from 'matrix-react-sdk/lib/rageshake/rageshake';
@ -65,12 +66,104 @@ function getUpdateCheckStatus(status) {
}
}
class SeshatIndexManager extends BaseEventIndexManager {
constructor() {
super();
this._pendingIpcCalls = {};
this._nextIpcCallId = 0;
ipcRenderer.on('seshatReply', this._onIpcReply.bind(this));
}
async _ipcCall(name: string, ...args: []): Promise<{}> {
// TODO this should be moved into the preload.js file.
const ipcCallId = ++this._nextIpcCallId;
return new Promise((resolve, reject) => {
this._pendingIpcCalls[ipcCallId] = {resolve, reject};
window.ipcRenderer.send('seshat', {id: ipcCallId, name, args});
});
}
_onIpcReply(ev: {}, payload: {}) {
if (payload.id === undefined) {
console.warn("Ignoring IPC reply with no ID");
return;
}
if (this._pendingIpcCalls[payload.id] === undefined) {
console.warn("Unknown IPC payload ID: " + payload.id);
return;
}
const callbacks = this._pendingIpcCalls[payload.id];
delete this._pendingIpcCalls[payload.id];
if (payload.error) {
callbacks.reject(payload.error);
} else {
callbacks.resolve(payload.reply);
}
}
async supportsEventIndexing(): Promise<boolean> {
return this._ipcCall('supportsEventIndexing');
}
async initEventIndex(): Promise<> {
return this._ipcCall('initEventIndex');
}
async addEventToIndex(ev: MatrixEvent, profile: MatrixProfile): Promise<> {
return this._ipcCall('addEventToIndex', ev, profile);
}
async isEventIndexEmpty(): Promise<boolean> {
return this._ipcCall('isEventIndexEmpty');
}
async commitLiveEvents(): Promise<> {
return this._ipcCall('commitLiveEvents');
}
async searchEventIndex(searchConfig: SearchConfig): Promise<SearchResult> {
return this._ipcCall('searchEventIndex', searchConfig);
}
async addHistoricEvents(
events: [HistoricEvent],
checkpoint: CrawlerCheckpoint | null,
oldCheckpoint: CrawlerCheckpoint | null,
): Promise<> {
return this._ipcCall('addHistoricEvents', events, checkpoint, oldCheckpoint);
}
async addCrawlerCheckpoint(checkpoint: CrawlerCheckpoint): Promise<> {
return this._ipcCall('addCrawlerCheckpoint', checkpoint);
}
async removeCrawlerCheckpoint(checkpoint: CrawlerCheckpoint): Promise<> {
return this._ipcCall('removeCrawlerCheckpoint', checkpoint);
}
async loadCheckpoints(): Promise<[CrawlerCheckpoint]> {
return this._ipcCall('loadCheckpoints');
}
async closeEventIndex(): Promise<> {
return this._ipcCall('closeEventIndex');
}
async deleteEventIndex(): Promise<> {
return this._ipcCall('deleteEventIndex');
}
}
export default class ElectronPlatform extends VectorBasePlatform {
constructor() {
super();
this._pendingIpcCalls = {};
this._nextIpcCallId = 0;
this.eventIndexManager = new SeshatIndexManager();
dis.register(_onAction);
/*
@ -294,4 +387,8 @@ export default class ElectronPlatform extends VectorBasePlatform {
callbacks.resolve(payload.reply);
}
}
getEventIndexingManager(): BaseEventIndexManager | null {
return this.eventIndexManager;
}
}