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acquireOpenSSL.js

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const fse = require("fs-extra");

const path = require("path");

const R = require("ramda");

const request = require("request-promise-native");

const stream = require("stream");

const tar = require("tar-fs");

const zlib = require("zlib");

const vendorPath = path.resolve(__dirname, "..", "vendor");

const distrosFilePath = path.join(vendorPath, "static_config", "openssl_distributions.json");

const extractPath = path.join(vendorPath, "openssl");

const getOSName = () => {

if (process.platform === "win32") {

if (process.arch === "x64") {

return "win64";

} else {

return "win32";

}

} else if (process.platform === "darwin") {

return "macOS";

} else {

// We only discover distros for Mac and Windows. We don't care about any other OS.

return "unknown";

}

};

const getCompilerVersion = () => {

// TODO: Get actual compiler version. For now, just assume latest compiler for distros in openssl_distributions.js

const osName = getOSName();

if (osName === "win32" || osName === "win64") {

return "vs14";

} else if (osName === "macOS") {

return "clang-9";

} else {

// We only discover distros for Mac and Windows. We don't care about any other OS.

return "unknown";

}

};

// TODO: Determine if we are GYPing in Debug

const getIsDebug = () => false;

const getMatchingDistributionName = () =>

`${getOSName()}-${getCompilerVersion()}-static${getIsDebug() ? "-debug" : "-release"}`;

const getDistributionsConfig = () =>

fse.readFile(distrosFilePath, "utf8")

.then(JSON.parse);

const getDistrbutionURLFromConfig = (config) => {

const distName = getMatchingDistributionName();

const distURL = R.propOr(null, distName, config);

if (!distURL) {

return Promise.reject(new Error("No matching distribution for this operating system"));

}

return Promise.resolve(distURL);

};

const fetchFileFromURL = (distUrl) => request({

method: "GET",

uri: distUrl,

encoding: null,

gzip: true

});

const extractFile = (body) => new Promise((resolve, reject) => {

const streamableBody = new stream.Readable();

streamableBody.push(body);

streamableBody.push(null);

streamableBody

.pipe(zlib.createGunzip())

.on("error", reject)

.pipe(tar.extract(extractPath))

.on("error", reject)

.on("close", resolve);

});

const acquireOpenSSL = () =>

getDistributionsConfig()

.then(getDistrbutionURLFromConfig)

.then(fetchFileFromURL)

.then(extractFile)

.catch((e) => {

console.error(e);

process.exit(1);

});

acquireOpenSSL();