Added export_allowed file to make repository visible in cgit

1 files changed, 166 insertions, 0 deletions

diff --git a/node_modules/sshpk/lib/formats/rfc4253.js b/node_modules/sshpk/lib/formats/rfc4253.js
new file mode 100644
index 0000000..52fddcb
--- /dev/null
+++ b/node_modules/sshpk/lib/formats/rfc4253.js
@@ -0,0 +1,166 @@
+// Copyright 2015 Joyent, Inc.
+
+module.exports = {
+	read: read.bind(undefined, false, undefined),
+	readType: read.bind(undefined, false),
+	write: write,
+	/* semi-private api, used by sshpk-agent */
+	readPartial: read.bind(undefined, true),
+
+	/* shared with ssh format */
+	readInternal: read,
+	keyTypeToAlg: keyTypeToAlg,
+	algToKeyType: algToKeyType
+};
+
+var assert = require('assert-plus');
+var Buffer = require('safer-buffer').Buffer;
+var algs = require('../algs');
+var utils = require('../utils');
+var Key = require('../key');
+var PrivateKey = require('../private-key');
+var SSHBuffer = require('../ssh-buffer');
+
+function algToKeyType(alg) {
+	assert.string(alg);
+	if (alg === 'ssh-dss')
+		return ('dsa');
+	else if (alg === 'ssh-rsa')
+		return ('rsa');
+	else if (alg === 'ssh-ed25519')
+		return ('ed25519');
+	else if (alg === 'ssh-curve25519')
+		return ('curve25519');
+	else if (alg.match(/^ecdsa-sha2-/))
+		return ('ecdsa');
+	else
+		throw (new Error('Unknown algorithm ' + alg));
+}
+
+function keyTypeToAlg(key) {
+	assert.object(key);
+	if (key.type === 'dsa')
+		return ('ssh-dss');
+	else if (key.type === 'rsa')
+		return ('ssh-rsa');
+	else if (key.type === 'ed25519')
+		return ('ssh-ed25519');
+	else if (key.type === 'curve25519')
+		return ('ssh-curve25519');
+	else if (key.type === 'ecdsa')
+		return ('ecdsa-sha2-' + key.part.curve.data.toString());
+	else
+		throw (new Error('Unknown key type ' + key.type));
+}
+
+function read(partial, type, buf, options) {
+	if (typeof (buf) === 'string')
+		buf = Buffer.from(buf);
+	assert.buffer(buf, 'buf');
+
+	var key = {};
+
+	var parts = key.parts = [];
+	var sshbuf = new SSHBuffer({buffer: buf});
+
+	var alg = sshbuf.readString();
+	assert.ok(!sshbuf.atEnd(), 'key must have at least one part');
+
+	key.type = algToKeyType(alg);
+
+	var partCount = algs.info[key.type].parts.length;
+	if (type && type === 'private')
+		partCount = algs.privInfo[key.type].parts.length;
+
+	while (!sshbuf.atEnd() && parts.length < partCount)
+		parts.push(sshbuf.readPart());
+	while (!partial && !sshbuf.atEnd())
+		parts.push(sshbuf.readPart());
+
+	assert.ok(parts.length >= 1,
+	    'key must have at least one part');
+	assert.ok(partial || sshbuf.atEnd(),
+	    'leftover bytes at end of key');
+
+	var Constructor = Key;
+	var algInfo = algs.info[key.type];
+	if (type === 'private' || algInfo.parts.length !== parts.length) {
+		algInfo = algs.privInfo[key.type];
+		Constructor = PrivateKey;
+	}
+	assert.strictEqual(algInfo.parts.length, parts.length);
+
+	if (key.type === 'ecdsa') {
+		var res = /^ecdsa-sha2-(.+)$/.exec(alg);
+		assert.ok(res !== null);
+		assert.strictEqual(res[1], parts[0].data.toString());
+	}
+
+	var normalized = true;
+	for (var i = 0; i < algInfo.parts.length; ++i) {
+		var p = parts[i];
+		p.name = algInfo.parts[i];
+		/*
+		 * OpenSSH stores ed25519 "private" keys as seed + public key
+		 * concat'd together (k followed by A). We want to keep them
+		 * separate for other formats that don't do this.
+		 */
+		if (key.type === 'ed25519' && p.name === 'k')
+			p.data = p.data.slice(0, 32);
+
+		if (p.name !== 'curve' && algInfo.normalize !== false) {
+			var nd;
+			if (key.type === 'ed25519') {
+				nd = utils.zeroPadToLength(p.data, 32);
+			} else {
+				nd = utils.mpNormalize(p.data);
+			}
+			if (nd.toString('binary') !==
+			    p.data.toString('binary')) {
+				p.data = nd;
+				normalized = false;
+			}
+		}
+	}
+
+	if (normalized)
+		key._rfc4253Cache = sshbuf.toBuffer();
+
+	if (partial && typeof (partial) === 'object') {
+		partial.remainder = sshbuf.remainder();
+		partial.consumed = sshbuf._offset;
+	}
+
+	return (new Constructor(key));
+}
+
+function write(key, options) {
+	assert.object(key);
+
+	var alg = keyTypeToAlg(key);
+	var i;
+
+	var algInfo = algs.info[key.type];
+	if (PrivateKey.isPrivateKey(key))
+		algInfo = algs.privInfo[key.type];
+	var parts = algInfo.parts;
+
+	var buf = new SSHBuffer({});
+
+	buf.writeString(alg);
+
+	for (i = 0; i < parts.length; ++i) {
+		var data = key.part[parts[i]].data;
+		if (algInfo.normalize !== false) {
+			if (key.type === 'ed25519')
+				data = utils.zeroPadToLength(data, 32);
+			else
+				data = utils.mpNormalize(data);
+		}
+		if (key.type === 'ed25519' && parts[i] === 'k')
+			data = Buffer.concat([data, key.part.A.data]);
+		buf.writeBuffer(data);
+	}
+
+	return (buf.toBuffer());
+}