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- #!/usr/bin/env node
- // -*- mode: js -*-
- // vim: set filetype=javascript :
- // Copyright 2015 Joyent, Inc. All rights reserved.
-
- var dashdash = require('dashdash');
- var sshpk = require('../lib/index');
- var fs = require('fs');
- var path = require('path');
- var Buffer = require('safer-buffer').Buffer;
-
- var options = [
- {
- names: ['hash', 'H'],
- type: 'string',
- help: 'Hash algorithm (sha1, sha256, sha384, sha512)'
- },
- {
- names: ['verbose', 'v'],
- type: 'bool',
- help: 'Display verbose info about key and hash used'
- },
- {
- names: ['identity', 'i'],
- type: 'string',
- help: 'Path to (public) key to use'
- },
- {
- names: ['file', 'f'],
- type: 'string',
- help: 'Input filename'
- },
- {
- names: ['format', 't'],
- type: 'string',
- help: 'Signature format (asn1, ssh, raw)'
- },
- {
- names: ['signature', 's'],
- type: 'string',
- help: 'base64-encoded signature data'
- },
- {
- names: ['help', 'h'],
- type: 'bool',
- help: 'Shows this help text'
- }
- ];
-
- if (require.main === module) {
- var parser = dashdash.createParser({
- options: options
- });
-
- try {
- var opts = parser.parse(process.argv);
- } catch (e) {
- console.error('sshpk-verify: error: %s', e.message);
- process.exit(3);
- }
-
- if (opts.help || opts._args.length > 1) {
- var help = parser.help({}).trimRight();
- console.error('sshpk-verify: sign data using an SSH key\n');
- console.error(help);
- process.exit(3);
- }
-
- if (!opts.identity) {
- var help = parser.help({}).trimRight();
- console.error('sshpk-verify: the -i or --identity option ' +
- 'is required\n');
- console.error(help);
- process.exit(3);
- }
-
- if (!opts.signature) {
- var help = parser.help({}).trimRight();
- console.error('sshpk-verify: the -s or --signature option ' +
- 'is required\n');
- console.error(help);
- process.exit(3);
- }
-
- var keyData = fs.readFileSync(opts.identity);
-
- var key;
- try {
- key = sshpk.parseKey(keyData);
- } catch (e) {
- console.error('sshpk-verify: error loading key "' +
- opts.identity + '": ' + e.name + ': ' + e.message);
- process.exit(2);
- }
-
- var fmt = opts.format || 'asn1';
- var sigData = Buffer.from(opts.signature, 'base64');
-
- var sig;
- try {
- sig = sshpk.parseSignature(sigData, key.type, fmt);
- } catch (e) {
- console.error('sshpk-verify: error parsing signature: ' +
- e.name + ': ' + e.message);
- process.exit(2);
- }
-
- var hash = opts.hash || key.defaultHashAlgorithm();
-
- var verifier;
- try {
- verifier = key.createVerify(hash);
- } catch (e) {
- console.error('sshpk-verify: error creating verifier: ' +
- e.name + ': ' + e.message);
- process.exit(2);
- }
-
- if (opts.verbose) {
- console.error('sshpk-verify: using %s-%s with a %d bit key',
- key.type, hash, key.size);
- }
-
- var inFile = process.stdin;
- var inFileName = 'stdin';
-
- var inFilePath;
- if (opts.file) {
- inFilePath = opts.file;
- } else if (opts._args.length === 1) {
- inFilePath = opts._args[0];
- }
-
- if (inFilePath)
- inFileName = path.basename(inFilePath);
-
- try {
- if (inFilePath) {
- fs.accessSync(inFilePath, fs.R_OK);
- inFile = fs.createReadStream(inFilePath);
- }
- } catch (e) {
- console.error('sshpk-verify: error opening input file' +
- ': ' + e.name + ': ' + e.message);
- process.exit(2);
- }
-
- inFile.pipe(verifier);
- inFile.on('end', function () {
- var ret;
- try {
- ret = verifier.verify(sig);
- } catch (e) {
- console.error('sshpk-verify: error verifying data: ' +
- e.name + ': ' + e.message);
- process.exit(1);
- }
-
- if (ret) {
- console.error('OK');
- process.exit(0);
- }
-
- console.error('NOT OK');
- process.exit(1);
- });
- }
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