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acme-v2.js
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==========
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A framework for building letsencrypt clients (and other ACME v2 clients), forked from `le-acme-core.js`.
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In progress
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* get directory
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* get nonce
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* create account
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/*!
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* acme-v2.js
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* Copyright(c) 2018 AJ ONeal <aj@ppl.family> https://ppl.family
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* Apache-2.0 OR MIT (and hence also MPL 2.0)
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*/
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'use strict';
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var defaults = {
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productionServerUrl: 'https://acme-v02.api.letsencrypt.org/directory'
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, stagingServerUrl: 'https://acme-staging-v02.api.letsencrypt.org/directory'
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, acmeChallengePrefix: '/.well-known/acme-challenge/'
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, knownEndpoints: [ 'keyChange', 'meta', 'newAccount', 'newNonce', 'newOrder', 'revokeCert' ]
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, challengeType: 'http-01' // dns-01
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, keyType: 'rsa' // ecdsa
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, keySize: 2048 // 256
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};
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function create(deps) {
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if (!deps) { deps = {}; }
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deps.LeCore = {};
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deps.pkg = deps.pkg || require('./package.json');
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deps.os = deps.os || require('os');
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deps.process = deps.process || require('process');
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var uaDefaults = {
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pkg: "Greenlock/" + deps.pkg.version
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, os: " (" + deps.os.type() + "; " + deps.process.arch + " " + deps.os.platform() + " " + deps.os.release() + ")"
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, node: " Node.js/" + deps.process.version
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, user: ''
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};
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//var currentUAProps;
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function getUaString() {
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var userAgent = '';
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//Object.keys(currentUAProps)
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Object.keys(uaDefaults).forEach(function (key) {
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userAgent += uaDefaults[key];
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//userAgent += currentUAProps[key];
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});
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return userAgent.trim();
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}
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function getRequest(opts) {
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if (!opts) { opts = {}; }
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return deps.request.defaults({
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headers: {
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'User-Agent': opts.userAgent || getUaString()
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}
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});
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}
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deps.request = deps.request || require('request');
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deps.promisify = deps.promisify || require('util').promisify;
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var directoryUrl = deps.directoryUrl || defaults.stagingServerUrl;
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var request = deps.promisify(getRequest({}));
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var acme2 = {
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getAcmeUrls: function () {
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var me = this;
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return request({ url: directoryUrl }).then(function (resp) {
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me._directoryUrls = JSON.parse(resp.body);
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me._tos = me._directoryUrls.meta.termsOfService;
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return me._directoryUrls;
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});
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}
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, getNonce: function () {
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var me = this;
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return request({ method: 'HEAD', url: me._directoryUrls.newNonce }).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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return me._nonce;
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});
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}
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// ACME RFC Section 7.3 Account Creation
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/*
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{
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"protected": base64url({
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"alg": "ES256",
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"jwk": {...},
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"nonce": "6S8IqOGY7eL2lsGoTZYifg",
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"url": "https://example.com/acme/new-account"
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}),
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"payload": base64url({
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"termsOfServiceAgreed": true,
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"onlyReturnExisting": false,
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"contact": [
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"mailto:cert-admin@example.com",
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"mailto:admin@example.com"
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]
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}),
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"signature": "RZPOnYoPs1PhjszF...-nh6X1qtOFPB519I"
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}
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*/
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, registerNewAccount: function () {
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var me = this;
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var RSA = require('rsa-compat').RSA;
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var crypto = require('crypto');
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RSA.signJws = RSA.generateJws = RSA.generateSignatureJws = RSA.generateSignatureJwk =
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function (keypair, payload, nonce) {
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var prot = {};
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if (nonce) {
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if ('string' === typeof nonce) {
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prot.nonce = nonce;
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} else {
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prot = nonce;
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}
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}
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keypair = RSA._internal.import(keypair);
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keypair = RSA._internal.importForge(keypair);
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keypair.publicKeyJwk = RSA.exportPublicJwk(keypair);
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// Compute JWS signature
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var protectedHeader = "";
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if (Object.keys(prot).length) {
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protectedHeader = JSON.stringify(prot); // { alg: prot.alg, nonce: prot.nonce, url: prot.url });
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}
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var protected64 = RSA.utils.toWebsafeBase64(new Buffer(protectedHeader).toString('base64'));
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var payload64 = RSA.utils.toWebsafeBase64(payload.toString('base64'));
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var raw = protected64 + "." + payload64;
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var sha256Buf = crypto.createHash('sha256').update(raw).digest();
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var sig64;
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if (RSA._URSA) {
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sig64 = RSA._ursaGenerateSig(keypair, sha256Buf);
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} else {
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sig64 = RSA._forgeGenerateSig(keypair, sha256Buf);
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}
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return {
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/*
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header: {
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alg: "RS256"
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, jwk: keypair.publicKeyJwk
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}
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*/
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protected: protected64
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, payload: payload64
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, signature: sig64
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};
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};
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var options = {
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email: 'coolaj86@gmail.com'
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, keypair: RSA.import({ privateKeyPem: require('fs').readFileSync(__dirname + '/privkey.pem') })
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};
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var body = {
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termsOfServiceAgreed: true
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, onlyReturnExisting: false
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, contact: [ 'mailto:' + options.email ]
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};
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var payload = JSON.stringify(body, null, 2);
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var jws = RSA.signJws(
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options.keypair
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, new Buffer(payload)
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, { nonce: me._nonce, alg: 'RS256', url: me._directoryUrls.newAccount, jwk: RSA.exportPublicJwk(options.keypair) }
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);
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console.log('jws:');
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console.log(jws);
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return request({
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method: 'POST'
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, url: me._directoryUrls.newAccount
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, headers: { 'Content-Type': 'application/jose+json' }
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, json: jws
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}).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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console.log(resp.toJSON());
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return resp.body;
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});
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}
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};
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return acme2;
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}
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var acme2 = create();
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acme2.getAcmeUrls().then(function (body) {
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console.log(body);
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acme2.getNonce().then(function (nonce) {
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console.log(nonce);
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acme2.registerNewAccount().then(function (account) {
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console.log(account);
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});
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});
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});
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@ -0,0 +1,28 @@
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{
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"name": "acme-v2",
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"version": "1.0.0",
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"description": "A framework for building letsencrypt clients (and other ACME v2 clients), forked from le-acme-core.js.",
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"main": "node.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"repository": {
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"type": "git",
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"url": "ssh://gitea@git.coolaj86.com:22042/coolaj86/acme-v2.js.git"
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},
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"keywords": [
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"acmev2",
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"acme-v2",
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"acme",
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"letsencrypt-v2",
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"letsencryptv2",
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"greenlock",
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"greenlock2"
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],
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"author": "AJ ONeal <coolaj86@gmail.com> (https://coolaj86.com/)",
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"license": "(MIT OR Apache-2.0)",
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"dependencies": {
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"request": "^2.85.0",
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"rsa-compat": "^1.2.7"
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}
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}
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