diff options
Diffstat (limited to 'src/utils/patchWebpack.ts')
-rw-r--r-- | src/utils/patchWebpack.ts | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/utils/patchWebpack.ts b/src/utils/patchWebpack.ts new file mode 100644 index 0000000..6a379de --- /dev/null +++ b/src/utils/patchWebpack.ts @@ -0,0 +1,97 @@ +import { WEBPACK_CHUNK } from './constants'; + +let webpackChunk: any[]; + +Object.defineProperty(window, WEBPACK_CHUNK, { + get: () => webpackChunk, + set: (v) => { + // There are two possible values for push. + // - Native push with toString result of function push() { [native code] } + // - Webpack's push with toString result of function() { [native code] } + // We don't want to override the native one, so check for "push" + if (v && !v.push.toString().includes("push")) { + patchPush(); + // @ts-ignore + delete window[WEBPACK_CHUNK]; + window[WEBPACK_CHUNK] = v; + } + webpackChunk = v; + }, + configurable: true +}); + +function patchPush() { + function handlePush(chunk) { + try { + const modules = chunk[1]; + const subscriptions = new Set<any>(); + const patches = [] as any[]; + + for (const id in modules) { + let mod = modules[id]; + let code = mod.toString(); + const originalMod = mod; + const patchedBy = new Set(); + + modules[id] = function (module, exports, require) { + try { + mod(module, exports, require); + } catch (err) { + // Just rethrow discord errors + if (mod === originalMod) throw err; + + console.error("[Webpack] Error in patched chunk", err); + return originalMod(module, exports, require); + } + + for (const [filter, callback] of subscriptions) { + try { + if (filter(exports)) { + subscriptions.delete(filter); + callback(exports); + } else if (exports.default && filter(exports.default)) { + subscriptions.delete(filter); + callback(exports.default); + } + } catch (err) { + console.error("[Webpack] Error while firing callback for webpack chunk", err); + } + } + }; + + for (let i = 0; i < patches.length; i++) { + const patch = patches[i]; + if (code.includes(patch.find)) { + patchedBy.add(patch.plugin); + const lastMod = mod; + const lastCode = code; + try { + const newCode = code.replace(patch.replacement.match, patch.replacement.replace); + const newMod = (0, eval)(`// Webpack Module ${id} - Patched by ${[...patchedBy].join(", ")}\n${newCode}\n//# sourceURL=WebpackModule${id}`); + code = newCode; + mod = newMod; + patches.splice(i--, 1); + } catch (err) { + console.error("[Webpack] Failed to apply patch of", patch.plugin, err); + code = lastCode; + mod = lastMod; + patchedBy.delete(patch.plugin); + } + } + } + } + } catch (err) { + console.error("oopsie", err); + } + + return handlePush.original.call(window[WEBPACK_CHUNK], chunk); + } + + handlePush.original = window[WEBPACK_CHUNK].push; + Object.defineProperty(window[WEBPACK_CHUNK], "push", { + get: () => handlePush, + set: (v) => (handlePush.original = v), + configurable: true + }); +} + |