mirror of
https://github.com/actions/setup-python.git
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191 lines
3.9 KiB
JavaScript
191 lines
3.9 KiB
JavaScript
#!/usr/bin/env node
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// -*- mode: js -*-
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// vim: set filetype=javascript :
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// Copyright 2015 Joyent, Inc. All rights reserved.
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var dashdash = require('dashdash');
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var sshpk = require('../lib/index');
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var fs = require('fs');
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var path = require('path');
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var getPassword = require('getpass').getPass;
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var options = [
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{
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names: ['hash', 'H'],
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type: 'string',
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help: 'Hash algorithm (sha1, sha256, sha384, sha512)'
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},
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{
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names: ['verbose', 'v'],
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type: 'bool',
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help: 'Display verbose info about key and hash used'
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},
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{
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names: ['identity', 'i'],
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type: 'string',
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help: 'Path to key to use'
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},
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{
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names: ['file', 'f'],
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type: 'string',
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help: 'Input filename'
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},
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{
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names: ['out', 'o'],
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type: 'string',
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help: 'Output filename'
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},
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{
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names: ['format', 't'],
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type: 'string',
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help: 'Signature format (asn1, ssh, raw)'
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},
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{
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names: ['binary', 'b'],
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type: 'bool',
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help: 'Output raw binary instead of base64'
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},
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{
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names: ['help', 'h'],
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type: 'bool',
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help: 'Shows this help text'
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}
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];
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var parseOpts = {};
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if (require.main === module) {
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var parser = dashdash.createParser({
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options: options
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});
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try {
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var opts = parser.parse(process.argv);
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} catch (e) {
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console.error('sshpk-sign: error: %s', e.message);
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process.exit(1);
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}
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if (opts.help || opts._args.length > 1) {
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var help = parser.help({}).trimRight();
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console.error('sshpk-sign: sign data using an SSH key\n');
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console.error(help);
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process.exit(1);
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}
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if (!opts.identity) {
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var help = parser.help({}).trimRight();
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console.error('sshpk-sign: the -i or --identity option ' +
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'is required\n');
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console.error(help);
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process.exit(1);
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}
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var keyData = fs.readFileSync(opts.identity);
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parseOpts.filename = opts.identity;
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run();
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}
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function run() {
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var key;
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try {
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key = sshpk.parsePrivateKey(keyData, 'auto', parseOpts);
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} catch (e) {
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if (e.name === 'KeyEncryptedError') {
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getPassword(function (err, pw) {
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parseOpts.passphrase = pw;
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run();
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});
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return;
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}
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console.error('sshpk-sign: error loading private key "' +
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opts.identity + '": ' + e.name + ': ' + e.message);
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process.exit(1);
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}
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var hash = opts.hash || key.defaultHashAlgorithm();
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var signer;
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try {
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signer = key.createSign(hash);
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} catch (e) {
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console.error('sshpk-sign: error creating signer: ' +
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e.name + ': ' + e.message);
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process.exit(1);
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}
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if (opts.verbose) {
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console.error('sshpk-sign: using %s-%s with a %d bit key',
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key.type, hash, key.size);
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}
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var inFile = process.stdin;
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var inFileName = 'stdin';
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var inFilePath;
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if (opts.file) {
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inFilePath = opts.file;
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} else if (opts._args.length === 1) {
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inFilePath = opts._args[0];
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}
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if (inFilePath)
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inFileName = path.basename(inFilePath);
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try {
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if (inFilePath) {
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fs.accessSync(inFilePath, fs.R_OK);
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inFile = fs.createReadStream(inFilePath);
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}
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} catch (e) {
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console.error('sshpk-sign: error opening input file' +
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': ' + e.name + ': ' + e.message);
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process.exit(1);
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}
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var outFile = process.stdout;
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try {
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if (opts.out && !opts.identify) {
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fs.accessSync(path.dirname(opts.out), fs.W_OK);
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outFile = fs.createWriteStream(opts.out);
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}
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} catch (e) {
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console.error('sshpk-sign: error opening output file' +
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': ' + e.name + ': ' + e.message);
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process.exit(1);
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}
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inFile.pipe(signer);
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inFile.on('end', function () {
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var sig;
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try {
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sig = signer.sign();
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} catch (e) {
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console.error('sshpk-sign: error signing data: ' +
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e.name + ': ' + e.message);
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process.exit(1);
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}
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var fmt = opts.format || 'asn1';
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var output;
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try {
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output = sig.toBuffer(fmt);
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if (!opts.binary)
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output = output.toString('base64');
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} catch (e) {
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console.error('sshpk-sign: error converting signature' +
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' to ' + fmt + ' format: ' + e.name + ': ' +
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e.message);
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process.exit(1);
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}
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outFile.write(output);
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if (!opts.binary)
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outFile.write('\n');
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outFile.once('drain', function () {
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process.exit(0);
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});
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});
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}
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