Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

Source

"use strict";

var hasher = require("./hasher");
var minimatch = require("minimatch");

Authorizer

function
Authorizer()

@param: {Object}usersThe user hash, as created by this class
@: (optional)

Description

mosca.Authorizer's responsibility is to give an implementation
of mosca.Server callback of authorizations, against a JSON file.

Source

function Authorizer(users) {
  this.users = users || {};
}
module.exports = Authorizer;

Description

It returns the authenticate function to plug into mosca.Server.

Source

Authorizer.prototype.__defineGetter__("authenticate", function() {
  var that = this;
  return function(client, user, pass, cb) {
    that._authenticate(client, user, pass, cb);
  };
});

Description

It returns the authorizePublish function to plug into mosca.Server.

Source

Authorizer.prototype.__defineGetter__("authorizePublish", function() {
  var that = this;
  return function(client, topic, payload, cb) {
    cb(null, minimatch(topic, that.users[client.user].authorizePublish));
  };
});

Description

It returns the authorizeSubscribe function to plug into mosca.Server.

Source

Authorizer.prototype.__defineGetter__("authorizeSubscribe", function() {
  var that = this;
  return function(client, topic, cb) {
    cb(null, minimatch(topic, that.users[client.user].authorizeSubscribe));
  };
});

addUser

method
Authorizer.prototype.addUser()

@param: {String}userThe username
@param: {String}passThe password
@param: {String}authorizePublishThe authorizePublish pattern
@: (optional)
@param: {String}authorizeSubscribeThe authorizeSubscribe pattern
@: (optional)
@param: {Function}cbThe callback that will be called after the
@: insertion.

Description

An utility function to add an user.

Source

Authorizer.prototype.addUser = function(user, pass, authorizePublish,
                                        authorizeSubscribe, cb) {
  var that = this;

  if (typeof authorizePublish === "function") {
    cb = authorizePublish;
    authorizePublish = "**";
    authorizeSubscribe = "**";
  } else if (typeof authorizeSubscribe == "function") {
    cb = authorizeSubscribe;
    authorizeSubscribe = "**";
  }

  hasher({
    password: pass.toString()
  }, function(err, pass, salt, hash) {
    if (!err) {
      that.users[user] = {
        salt: salt,
        hash: hash,
        authorizePublish: authorizePublish,
        authorizeSubscribe: authorizeSubscribe
      };
    }
    cb(err);
  });
  return this;
};

rmUser

method
Authorizer.prototype.rmUser()

@param: {String}userThe username
@param: {String}passThe password
@param: {Function}cbThe callback that will be called after the
@: deletion.

Description

An utility function to delete a user.

Source

Authorizer.prototype.rmUser = function(user, cb) {
  delete this.users[user];
  cb();
  return this;
};

Mosca lib/authorizer.js