3 // vim: set filetype=javascript :
4 // Copyright 2015 Joyent, Inc. All rights reserved.
6 var dashdash = require('dashdash');
7 var sshpk = require('../lib/index');
8 var fs = require('fs');
9 var path = require('path');
10 var getPassword = require('getpass').getPass;
16 help: 'Hash algorithm (sha1, sha256, sha384, sha512)'
19 names: ['verbose', 'v'],
21 help: 'Display verbose info about key and hash used'
24 names: ['identity', 'i'],
26 help: 'Path to key to use'
31 help: 'Input filename'
36 help: 'Output filename'
39 names: ['format', 't'],
41 help: 'Signature format (asn1, ssh, raw)'
44 names: ['binary', 'b'],
46 help: 'Output raw binary instead of base64'
51 help: 'Shows this help text'
57 if (require.main === module) {
58 var parser = dashdash.createParser({
63 var opts = parser.parse(process.argv);
65 console.error('sshpk-sign: error: %s', e.message);
69 if (opts.help || opts._args.length > 1) {
70 var help = parser.help({}).trimRight();
71 console.error('sshpk-sign: sign data using an SSH key\n');
77 var help = parser.help({}).trimRight();
78 console.error('sshpk-sign: the -i or --identity option ' +
84 var keyData = fs.readFileSync(opts.identity);
85 parseOpts.filename = opts.identity;
93 key = sshpk.parsePrivateKey(keyData, 'auto', parseOpts);
95 if (e.name === 'KeyEncryptedError') {
96 getPassword(function (err, pw) {
97 parseOpts.passphrase = pw;
102 console.error('sshpk-sign: error loading private key "' +
103 opts.identity + '": ' + e.name + ': ' + e.message);
107 var hash = opts.hash || key.defaultHashAlgorithm();
111 signer = key.createSign(hash);
113 console.error('sshpk-sign: error creating signer: ' +
114 e.name + ': ' + e.message);
119 console.error('sshpk-sign: using %s-%s with a %d bit key',
120 key.type, hash, key.size);
123 var inFile = process.stdin;
124 var inFileName = 'stdin';
128 inFilePath = opts.file;
129 } else if (opts._args.length === 1) {
130 inFilePath = opts._args[0];
134 inFileName = path.basename(inFilePath);
138 fs.accessSync(inFilePath, fs.R_OK);
139 inFile = fs.createReadStream(inFilePath);
142 console.error('sshpk-sign: error opening input file' +
143 ': ' + e.name + ': ' + e.message);
147 var outFile = process.stdout;
150 if (opts.out && !opts.identify) {
151 fs.accessSync(path.dirname(opts.out), fs.W_OK);
152 outFile = fs.createWriteStream(opts.out);
155 console.error('sshpk-sign: error opening output file' +
156 ': ' + e.name + ': ' + e.message);
161 inFile.on('end', function () {
166 console.error('sshpk-sign: error signing data: ' +
167 e.name + ': ' + e.message);
171 var fmt = opts.format || 'asn1';
174 output = sig.toBuffer(fmt);
176 output = output.toString('base64');
178 console.error('sshpk-sign: error converting signature' +
179 ' to ' + fmt + ' format: ' + e.name + ': ' +
184 outFile.write(output);
187 outFile.once('drain', function () {