next
Version:
The React Framework
62 lines (61 loc) • 2.65 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "SubresourceIntegrityPlugin", {
enumerable: true,
get: function() {
return SubresourceIntegrityPlugin;
}
});
const _webpack = require("next/dist/compiled/webpack/webpack");
const _crypto = /*#__PURE__*/ _interop_require_default(require("crypto"));
const _constants = require("../../../shared/lib/constants");
function _interop_require_default(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
const PLUGIN_NAME = 'SubresourceIntegrityPlugin';
class SubresourceIntegrityPlugin {
constructor(algorithm){
this.algorithm = algorithm;
}
apply(compiler) {
compiler.hooks.make.tap(PLUGIN_NAME, (compilation)=>{
compilation.hooks.afterProcessAssets.tap({
name: PLUGIN_NAME,
stage: _webpack.webpack.Compilation.PROCESS_ASSETS_STAGE_ADDITIONS
}, ()=>{
// Collect all the assets.
let files = new Set();
for (const asset of compilation.getAssets()){
files.add(asset.name);
}
// For each file, deduped, calculate the file hash.
const hashes = {};
for (const file of files.values()){
// Get the buffer for the asset.
const asset = compilation.getAsset(file);
if (!asset) {
throw Object.defineProperty(new Error(`could not get asset: ${file}`), "__NEXT_ERROR_CODE", {
value: "E349",
enumerable: false,
configurable: true
});
}
// Get the buffer for the asset.
const buffer = asset.source.buffer();
// Create the hash for the content.
const hash = _crypto.default.createHash(this.algorithm).update(buffer).digest().toString('base64');
hashes[file] = `${this.algorithm}-${hash}`;
}
const json = JSON.stringify(hashes, null, 2);
const file = 'server/' + _constants.SUBRESOURCE_INTEGRITY_MANIFEST;
compilation.emitAsset(file + '.js', new _webpack.sources.RawSource(`self.__SUBRESOURCE_INTEGRITY_MANIFEST=${JSON.stringify(json)}`));
compilation.emitAsset(file + '.json', new _webpack.sources.RawSource(json));
});
});
}
}
//# sourceMappingURL=subresource-integrity-plugin.js.map