primer cambio

node_modules/amqplib/lib/credentials.js

@@ -0,0 +1,42 @@
+//
+//
+//
+
+// Different kind of credentials that can be supplied when opening a
+// connection, corresponding to SASL mechanisms There's only two
+// useful mechanisms that RabbitMQ implements:
+//  * PLAIN (send username and password in the plain)
+//  * EXTERNAL (assume the server will figure out who you are from
+//    context, i.e., your SSL certificate)
+var codec = require('./codec')
+
+module.exports.plain = function(user, passwd) {
+  return {
+    mechanism: 'PLAIN',
+    response: function() {
+      return Buffer.from(['', user, passwd].join(String.fromCharCode(0)))
+    },
+    username: user,
+    password: passwd
+  }
+}
+
+module.exports.amqplain = function(user, passwd) {
+  return {
+    mechanism: 'AMQPLAIN',
+    response: function() {
+      const buffer = Buffer.alloc(16384);
+      const size = codec.encodeTable(buffer, { LOGIN: user, PASSWORD: passwd}, 0);
+      return buffer.subarray(4, size);
+    },
+    username: user,
+    password: passwd
+  }
+}
+
+module.exports.external = function() {
+  return {
+    mechanism: 'EXTERNAL',
+    response: function() { return Buffer.from(''); }
+  }
+}