1 files changed, 112 insertions, 0 deletions
diff --git a/deps/npm/node_modules/http-signature/lib/utils.js b/deps/npm/node_modules/http-signature/lib/utils.js
new file mode 100644
index 0000000000..bbf2aa895a
--- /dev/null
+++ b/deps/npm/node_modules/http-signature/lib/utils.js
@@ -0,0 +1,112 @@
+// Copyright 2012 Joyent, Inc.  All rights reserved.
+
+var assert = require('assert-plus');
+var sshpk = require('sshpk');
+var util = require('util');
+
+var HASH_ALGOS = {
+  'sha1': true,
+  'sha256': true,
+  'sha512': true
+};
+
+var PK_ALGOS = {
+  'rsa': true,
+  'dsa': true,
+  'ecdsa': true
+};
+
+function HttpSignatureError(message, caller) {
+  if (Error.captureStackTrace)
+    Error.captureStackTrace(this, caller || HttpSignatureError);
+
+  this.message = message;
+  this.name = caller.name;
+}
+util.inherits(HttpSignatureError, Error);
+
+function InvalidAlgorithmError(message) {
+  HttpSignatureError.call(this, message, InvalidAlgorithmError);
+}
+util.inherits(InvalidAlgorithmError, HttpSignatureError);
+
+function validateAlgorithm(algorithm) {
+  var alg = algorithm.toLowerCase().split('-');
+
+  if (alg.length !== 2) {
+    throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' is not a ' +
+      'valid algorithm'));
+  }
+
+  if (alg[0] !== 'hmac' && !PK_ALGOS[alg[0]]) {
+    throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' type keys ' +
+      'are not supported'));
+  }
+
+  if (!HASH_ALGOS[alg[1]]) {
+    throw (new InvalidAlgorithmError(alg[1].toUpperCase() + ' is not a ' +
+      'supported hash algorithm'));
+  }
+
+  return (alg);
+}
+
+///--- API
+
+module.exports = {
+
+  HASH_ALGOS: HASH_ALGOS,
+  PK_ALGOS: PK_ALGOS,
+
+  HttpSignatureError: HttpSignatureError,
+  InvalidAlgorithmError: InvalidAlgorithmError,
+
+  validateAlgorithm: validateAlgorithm,
+
+  /**
+   * Converts an OpenSSH public key (rsa only) to a PKCS#8 PEM file.
+   *
+   * The intent of this module is to interoperate with OpenSSL only,
+   * specifically the node crypto module's `verify` method.
+   *
+   * @param {String} key an OpenSSH public key.
+   * @return {String} PEM encoded form of the RSA public key.
+   * @throws {TypeError} on bad input.
+   * @throws {Error} on invalid ssh key formatted data.
+   */
+  sshKeyToPEM: function sshKeyToPEM(key) {
+    assert.string(key, 'ssh_key');
+
+    var k = sshpk.parseKey(key, 'ssh');
+    return (k.toString('pem'));
+  },
+
+
+  /**
+   * Generates an OpenSSH fingerprint from an ssh public key.
+   *
+   * @param {String} key an OpenSSH public key.
+   * @return {String} key fingerprint.
+   * @throws {TypeError} on bad input.
+   * @throws {Error} if what you passed doesn't look like an ssh public key.
+   */
+  fingerprint: function fingerprint(key) {
+    assert.string(key, 'ssh_key');
+
+    var k = sshpk.parseKey(key, 'ssh');
+    return (k.fingerprint('md5').toString('hex'));
+  },
+
+  /**
+   * Converts a PKGCS#8 PEM file to an OpenSSH public key (rsa)
+   *
+   * The reverse of the above function.
+   */
+  pemToRsaSSHKey: function pemToRsaSSHKey(pem, comment) {
+    assert.equal('string', typeof (pem), 'typeof pem');
+
+    var k = sshpk.parseKey(pem, 'pem');
+    k.comment = comment;
+    return (k.toString('ssh'));
+  }
+};