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Merge pull request #27650 from element-hq/rav/remove_olm

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Remove code which loads legacy libolm
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Richard van der Hoff 2024-07-05 10:54:08 +00:00 committed by GitHub
commit b4aa375619
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4 changed files with 5 additions and 71 deletions
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1
package.json
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@ -71,7 +71,6 @@
"@types/react": "17.0.80"
},
"dependencies": {
"@matrix-org/olm": "3.2.15",
"@matrix-org/react-sdk-module-api": "^2.3.0",
"jsrsasign": "^11.0.0",
"katex": "^0.16.0",

3
src/vector/index.ts
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@ -110,7 +110,6 @@ async function start(): Promise<void> {
rageshakePromise,
setupLogStorage,
preparePlatform,
loadOlm,
loadConfig,
loadLanguage,
loadTheme,
@ -148,7 +147,6 @@ async function start(): Promise<void> {
}
}
const loadOlmPromise = loadOlm();
// set the platform for react sdk
preparePlatform();
// load config requires the platform to be ready
@ -215,7 +213,6 @@ async function start(): Promise<void> {
// app load critical path starts here
// assert things started successfully
// ##################################
await loadOlmPromise;
await loadModulesPromise;
await loadThemePromise;
await loadLanguagePromise;

46
src/vector/init.tsx
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@ -17,10 +17,6 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
import olmWasmPath from "@matrix-org/olm/olm.wasm";
import Olm from "@matrix-org/olm";
import * as ReactDOM from "react-dom";
import * as React from "react";
import * as languageHandler from "matrix-react-sdk/src/languageHandler";
@ -76,48 +72,6 @@ export async function loadConfig(): Promise<void> {
}
}
export function loadOlm(): Promise<void> {
/* Load Olm. We try the WebAssembly version first, and then the legacy,
* asm.js version if that fails. For this reason we need to wait for this
* to finish before continuing to load the rest of the app. In future
* we could somehow pass a promise down to react-sdk and have it wait on
* that so olm can be loading in parallel with the rest of the app.
*
* We also need to tell the Olm js to look for its wasm file at the same
* level as index.html. It really should be in the same place as the js,
* ie. in the bundle directory, but as far as I can tell this is
* completely impossible with webpack. We do, however, use a hashed
* filename to avoid caching issues.
*/
return Olm.init({
locateFile: () => olmWasmPath,
})
.then(() => {
logger.log("Using WebAssembly Olm");
})
.catch((wasmLoadError) => {
logger.log("Failed to load Olm: trying legacy version", wasmLoadError);
return new Promise((resolve, reject) => {
const s = document.createElement("script");
s.src = "olm_legacy.js"; // XXX: This should be cache-busted too
s.onload = resolve;
s.onerror = reject;
document.body.appendChild(s);
})
.then(() => {
// Init window.Olm, ie. the one just loaded by the script tag,
// not 'Olm' which is still the failed wasm version.
return window.Olm.init();
})
.then(() => {
logger.log("Using legacy Olm");
})
.catch((legacyLoadError) => {
logger.log("Both WebAssembly and asm.js Olm failed!", legacyLoadError);
});
});
}
export async function loadLanguage(): Promise<void> {
const prefLang = SettingsStore.getValue("language", null, /*excludeDefault=*/ true);
let langs: string[] = [];

26
webpack.config.js
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@ -274,10 +274,6 @@ module.exports = (env, argv) => {
// there is no need for webpack to parse them - they can just be
// included as-is.
/highlight\.js[\\/]lib[\\/]languages/,
// olm takes ages for webpack to process, and it's already heavily
// optimised, so there is little to gain by us uglifying it.
/olm[\\/](javascript[\\/])?olm\.js$/,
],
rules: [
useHMR && {
@ -443,20 +439,6 @@ module.exports = (env, argv) => {
},
],
},
{
// the olm library wants to load its own wasm, rather than have webpack do it.
// We therefore use the `file-loader` to tell webpack to dump the contents to
// a separate file and return the name, and override the default `type` for `.wasm` files
// (which is `webassembly/experimental` under webpack 4) to stop webpack trying to interpret
// the filename as webassembly. (see also https://github.com/webpack/webpack/issues/6725)
test: /olm\.wasm$/,
loader: "file-loader",
type: "javascript/auto",
options: {
name: "[name].[hash:7].[ext]",
outputPath: ".",
},
},
{
// Fix up the name of the opus-recorder worker (react-sdk dependency).
// We more or less just want it to be clear it's for opus and not something else.
@ -498,8 +480,11 @@ module.exports = (env, argv) => {
},
},
{
// Same deal as olm.wasm: the decoderWorker wants to load the wasm artifact
// itself.
// The decoderWorker wants to load its own wasm, rather than have webpack do it.
// We therefore use the `file-loader` to tell webpack to dump the contents to
// a separate file and return the name, and override the default `type` for `.wasm` files
// (which is `webassembly/experimental` under webpack 4) to stop webpack trying to interpret
// the filename as webassembly. (see also https://github.com/webpack/webpack/issues/6725)
test: /decoderWorker\.min\.wasm$/,
loader: "file-loader",
type: "javascript/auto",
@ -750,7 +735,6 @@ module.exports = (env, argv) => {
{ from: "vector-icons/**", context: path.resolve(__dirname, "res") },
{ from: "decoder-ring/**", context: path.resolve(__dirname, "res") },
{ from: "media/**", context: path.resolve(__dirname, "node_modules/matrix-react-sdk/res/") },
"node_modules/@matrix-org/olm/olm_legacy.js",
{ from: "config.json", noErrorOnMissing: true },
"contribute.json",
],