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+*

+!lib/**

+!dist/**

+!client.js

+!.npmignore

diff --git a/node_modules/hawk/LICENSE b/node_modules/hawk/LICENSE
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+Copyright (c) 2012-2017, Eran Hammer and Project contributors
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * The names of any contributors may not be used to endorse or promote
+      products derived from this software without specific prior written
+      permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+                                  *   *   *
+
+The complete list of contributors can be found at: https://github.com/hueniverse/hawk/graphs/contributors
diff --git a/node_modules/hawk/README.md b/node_modules/hawk/README.md
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+![hawk Logo](https://raw.github.com/hueniverse/hawk/master/images/hawk.png)
+
+<img align="right" src="https://raw.github.com/hueniverse/hawk/master/images/logo.png" /> **Hawk** is an HTTP authentication scheme using a message authentication code (MAC) algorithm to provide partial
+HTTP request cryptographic verification. For more complex use cases such as access delegation, see [Oz](https://github.com/hueniverse/oz).
+
+Current version: **6.x**
+
+Note: 6.x, 5.x, 4.x, 3.x, and 2.x are the same exact protocol as 1.1. The version increments reflect changes in the node API.
+
+[![Build Status](https://travis-ci.org/hueniverse/hawk.svg?branch=master)](https://travis-ci.org/hueniverse/hawk)
+
+# Table of Content
+
+- [**Introduction**](#introduction)
+  - [Replay Protection](#replay-protection)
+  - [Usage Example](#usage-example)
+  - [Protocol Example](#protocol-example)
+    - [Payload Validation](#payload-validation)
+    - [Response Payload Validation](#response-payload-validation)
+  - [Browser Support and Considerations](#browser-support-and-considerations)
+- [**Single URI Authorization**](#single-uri-authorization)
+  - [Usage Example](#bewit-usage-example)
+- [**Security Considerations**](#security-considerations)
+  - [MAC Keys Transmission](#mac-keys-transmission)
+  - [Confidentiality of Requests](#confidentiality-of-requests)
+  - [Spoofing by Counterfeit Servers](#spoofing-by-counterfeit-servers)
+  - [Plaintext Storage of Credentials](#plaintext-storage-of-credentials)
+  - [Entropy of Keys](#entropy-of-keys)
+  - [Coverage Limitations](#coverage-limitations)
+  - [Future Time Manipulation](#future-time-manipulation)
+  - [Client Clock Poisoning](#client-clock-poisoning)
+  - [Bewit Limitations](#bewit-limitations)
+  - [Host Header Forgery](#host-header-forgery)
+- [**Frequently Asked Questions**](#frequently-asked-questions)
+- [**Implementations**](#implementations)
+- [**Acknowledgements**](#acknowledgements)
+
+# Introduction
+
+**Hawk** is an HTTP authentication scheme providing mechanisms for making authenticated HTTP requests with
+partial cryptographic verification of the request and response, covering the HTTP method, request URI, host,
+and optionally the request payload.
+
+Similar to the HTTP [Digest access authentication schemes](http://www.ietf.org/rfc/rfc2617.txt), **Hawk** uses a set of
+client credentials which include an identifier (e.g. username) and key (e.g. password). Likewise, just as with the Digest scheme,
+the key is never included in authenticated requests. Instead, it is used to calculate a request MAC value which is
+included in its place.
+
+However, **Hawk** has several differences from Digest. In particular, while both use a nonce to limit the possibility of
+replay attacks, in **Hawk** the client generates the nonce and uses it in combination with a timestamp, leading to less
+"chattiness" (interaction with the server).
+
+Also unlike Digest, this scheme is not intended to protect the key itself (the password in Digest) because
+the client and server must both have access to the key material in the clear.
+
+The primary design goals of this scheme are to:
+* simplify and improve HTTP authentication for services that are unwilling or unable to deploy TLS for all resources,
+* secure credentials against leakage (e.g., when the client uses some form of dynamic configuration to determine where
+  to send an authenticated request), and
+* avoid the exposure of credentials sent to a malicious server over an unauthenticated secure channel due to client
+  failure to validate the server's identity as part of its TLS handshake.
+
+In addition, **Hawk** supports a method for granting third-parties temporary access to individual resources using
+a query parameter called _bewit_ (in falconry, a leather strap used to attach a tracking device to the leg of a hawk).
+
+The **Hawk** scheme requires the establishment of a shared symmetric key between the client and the server,
+which is beyond the scope of this module. Typically, the shared credentials are established via an initial
+TLS-protected phase or derived from some other shared confidential information available to both the client
+and the server.
+
+
+## Replay Protection
+
+Without replay protection, an attacker can use a compromised (but otherwise valid and authenticated) request more
+than once, gaining access to a protected resource. To mitigate this, clients include both a nonce and a timestamp when
+making requests. This gives the server enough information to prevent replay attacks.
+
+The nonce is generated by the client, and is a string unique across all requests with the same timestamp and
+key identifier combination.
+
+The timestamp enables the server to restrict the validity period of the credentials where requests occurring afterwards
+are rejected. It also removes the need for the server to retain an unbounded number of nonce values for future checks.
+By default, **Hawk** uses a time window of 1 minute to allow for time skew between the client and server (which in
+practice translates to a maximum of 2 minutes as the skew can be positive or negative).
+
+Using a timestamp requires the client's clock to be in sync with the server's clock. **Hawk** requires both the client
+clock and the server clock to use NTP to ensure synchronization. However, given the limitations of some client types
+(e.g. browsers) to deploy NTP, the server provides the client with its current time (in seconds precision) in response
+to a bad timestamp.
+
+There is no expectation that the client will adjust its system clock to match the server (in fact, this would be a
+potential attack vector). Instead, the client only uses the server's time to calculate an offset used only
+for communications with that particular server. The protocol rewards clients with synchronized clocks by reducing
+the number of round trips required to authenticate the first request.
+
+
+## Usage Example
+
+Server code:
+
+```javascript
+const Http = require('http');
+const Hawk = require('hawk');
+
+
+// Credentials lookup function
+
+const credentialsFunc = function (id, callback) {
+
+    const credentials = {
+        key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
+        algorithm: 'sha256',
+        user: 'Steve'
+    };
+
+    return callback(null, credentials);
+};
+
+// Create HTTP server
+
+const handler = function (req, res) {
+
+    // Authenticate incoming request
+
+    Hawk.server.authenticate(req, credentialsFunc, {}, (err, credentials, artifacts) => {
+
+        // Prepare response
+
+        const payload = (!err ? `Hello ${credentials.user} ${artifacts.ext}` : 'Shoosh!');
+        const headers = { 'Content-Type': 'text/plain' };
+
+        // Generate Server-Authorization response header
+
+        const header = Hawk.server.header(credentials, artifacts, { payload, contentType: headers['Content-Type'] });
+        headers['Server-Authorization'] = header;
+
+        // Send the response back
+
+        res.writeHead(!err ? 200 : 401, headers);
+        res.end(payload);
+    });
+};
+
+// Start server
+
+Http.createServer(handler).listen(8000, 'example.com');
+```
+
+Client code:
+
+```javascript
+const Request = require('request');
+const Hawk = require('hawk');
+
+
+// Client credentials
+
+const credentials = {
+    id: 'dh37fgj492je',
+    key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
+    algorithm: 'sha256'
+}
+
+// Request options
+
+const requestOptions = {
+    uri: 'http://example.com:8000/resource/1?b=1&a=2',
+    method: 'GET',
+    headers: {}
+};
+
+// Generate Authorization request header
+
+const header = Hawk.client.header('http://example.com:8000/resource/1?b=1&a=2', 'GET', { credentials: credentials, ext: 'some-app-data' });
+requestOptions.headers.Authorization = header.field;
+
+// Send authenticated request
+
+Request(requestOptions, function (error, response, body) {
+
+    // Authenticate the server's response
+
+    const isValid = Hawk.client.authenticate(response, credentials, header.artifacts, { payload: body });
+
+    // Output results
+
+    console.log(`${response.statusCode}: ${body}` + (isValid ? ' (valid)' : ' (invalid)'));
+});
+```
+
+**Hawk** utilized the [**SNTP**](https://github.com/hueniverse/sntp) module for time sync management. By default, the local
+machine time is used. To automatically retrieve and synchronize the clock within the application, use the SNTP 'start()' method.
+
+```javascript
+Hawk.sntp.start();
+```
+
+
+## Protocol Example
+
+The client attempts to access a protected resource without authentication, sending the following HTTP request to
+the resource server:
+
+```
+GET /resource/1?b=1&a=2 HTTP/1.1
+Host: example.com:8000
+```
+
+The resource server returns an authentication challenge.
+
+```
+HTTP/1.1 401 Unauthorized
+WWW-Authenticate: Hawk
+```
+
+The client has previously obtained a set of **Hawk** credentials for accessing resources on the "`http://example.com/`"
+server. The **Hawk** credentials issued to the client include the following attributes:
+
+* Key identifier: `dh37fgj492je`
+* Key: `werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn`
+* Algorithm: `hmac sha256`
+* Hash: `6R4rV5iE+NPoym+WwjeHzjAGXUtLNIxmo1vpMofpLAE=`
+
+The client generates the authentication header by calculating a timestamp (e.g. the number of seconds since January 1,
+1970 00:00:00 GMT), generating a nonce, and constructing the normalized request string (each value followed by a newline
+character):
+
+```
+hawk.1.header
+1353832234
+j4h3g2
+GET
+/resource/1?b=1&a=2
+example.com
+8000
+
+some-app-ext-data
+
+```
+
+The request MAC is calculated using HMAC with the specified hash algorithm "`sha256`" and the key over the normalized request string.
+The result is base64-encoded to produce the request MAC:
+
+```
+6R4rV5iE+NPoym+WwjeHzjAGXUtLNIxmo1vpMofpLAE=
+```
+
+The client includes the **Hawk** key identifier, timestamp, nonce, application specific data, and request MAC with the request using
+the HTTP `Authorization` request header field:
+
+```
+GET /resource/1?b=1&a=2 HTTP/1.1
+Host: example.com:8000
+Authorization: Hawk id="dh37fgj492je", ts="1353832234", nonce="j4h3g2", ext="some-app-ext-data", mac="6R4rV5iE+NPoym+WwjeHzjAGXUtLNIxmo1vpMofpLAE="
+```
+
+The server validates the request by calculating the request MAC again based on the request received and verifies the validity
+and scope of the **Hawk** credentials. If valid, the server responds with the requested resource.
+
+
+### Payload Validation
+
+**Hawk** provides optional payload validation. When generating the authentication header, the client calculates a payload hash
+using the specified hash algorithm. The hash is calculated over the concatenated value of (each followed by a newline character):
+* `hawk.1.payload`
+* the content-type in lowercase, without any parameters (e.g. `application/json`)
+* the request payload prior to any content encoding (the exact representation requirements should be specified by the server for payloads other than simple single-part ascii to ensure interoperability)
+
+For example:
+
+* Payload: `Thank you for flying Hawk`
+* Content Type: `text/plain`
+* Algorithm: `sha256`
+* Hash: `Yi9LfIIFRtBEPt74PVmbTF/xVAwPn7ub15ePICfgnuY=`
+
+Results in the following input to the payload hash function (newline terminated values):
+
+```
+hawk.1.payload
+text/plain
+Thank you for flying Hawk
+
+```
+
+Which produces the following hash value:
+
+```
+Yi9LfIIFRtBEPt74PVmbTF/xVAwPn7ub15ePICfgnuY=
+```
+
+The client constructs the normalized request string (newline terminated values):
+
+```
+hawk.1.header
+1353832234
+j4h3g2
+POST
+/resource/1?a=1&b=2
+example.com
+8000
+Yi9LfIIFRtBEPt74PVmbTF/xVAwPn7ub15ePICfgnuY=
+some-app-ext-data
+
+```
+
+Then calculates the request MAC and includes the **Hawk** key identifier, timestamp, nonce, payload hash, application specific data,
+and request MAC, with the request using the HTTP `Authorization` request header field:
+
+```
+POST /resource/1?a=1&b=2 HTTP/1.1
+Host: example.com:8000
+Authorization: Hawk id="dh37fgj492je", ts="1353832234", nonce="j4h3g2", hash="Yi9LfIIFRtBEPt74PVmbTF/xVAwPn7ub15ePICfgnuY=", ext="some-app-ext-data", mac="aSe1DERmZuRl3pI36/9BdZmnErTw3sNzOOAUlfeKjVw="
+```
+
+It is up to the server if and when it validates the payload for any given request, based solely on its security policy
+and the nature of the data included.
+
+If the payload is available at the time of authentication, the server uses the hash value provided by the client to construct
+the normalized string and validates the MAC. If the MAC is valid, the server calculates the payload hash and compares the value
+with the provided payload hash in the header. In many cases, checking the MAC first is faster than calculating the payload hash.
+
+However, if the payload is not available at authentication time (e.g. too large to fit in memory, streamed elsewhere, or processed
+at a different stage in the application), the server may choose to defer payload validation for later by retaining the hash value
+provided by the client after validating the MAC.
+
+It is important to note that MAC validation does not mean the hash value provided by the client is valid, only that the value
+included in the header was not modified. Without calculating the payload hash on the server and comparing it to the value provided
+by the client, the payload may be modified by an attacker.
+
+
+## Response Payload Validation
+
+**Hawk** provides partial response payload validation. The server includes the `Server-Authorization` response header which enables the
+client to authenticate the response and ensure it is talking to the right server. **Hawk** defines the HTTP `Server-Authorization` header
+as a response header using the exact same syntax as the `Authorization` request header field.
+
+The header is constructed using the same process as the client's request header. The server uses the same credentials and other
+artifacts provided by the client to constructs the normalized request string. The `ext` and `hash` values are replaced with
+new values based on the server response. The rest as identical to those used by the client.
+
+The result MAC digest is included with the optional `hash` and `ext` values:
+
+```
+Server-Authorization: Hawk mac="XIJRsMl/4oL+nn+vKoeVZPdCHXB4yJkNnBbTbHFZUYE=", hash="f9cDF/TDm7TkYRLnGwRMfeDzT6LixQVLvrIKhh0vgmM=", ext="response-specific"
+```
+
+
+## Browser Support and Considerations
+
+A browser script is provided for including using a `<script>` tag in [lib/browser.js](/lib/browser.js). It's also a [component](http://component.io/hueniverse/hawk).
+
+**Hawk** relies on the _Server-Authorization_ and _WWW-Authenticate_ headers in its response to communicate with the client.
+Therefore, in case of CORS requests, it is important to consider sending _Access-Control-Expose-Headers_ with the value
+_"WWW-Authenticate, Server-Authorization"_ on each response from your server. As explained in the
+[specifications](http://www.w3.org/TR/cors/#access-control-expose-headers-response-header), it will indicate that these headers
+can safely be accessed by the client (using getResponseHeader() on the XmlHttpRequest object). Otherwise you will be met with a
+["simple response header"](http://www.w3.org/TR/cors/#simple-response-header) which excludes these fields and would prevent the
+Hawk client from authenticating the requests.You can read more about the why and how in this
+[article](http://www.html5rocks.com/en/tutorials/cors/#toc-adding-cors-support-to-the-server)
+
+
+# Single URI Authorization
+
+There are cases in which limited and short-term access to a protected resource is granted to a third party which does not
+have access to the shared credentials. For example, displaying a protected image on a web page accessed by anyone. **Hawk**
+provides limited support for such URIs in the form of a _bewit_ - a URI query parameter appended to the request URI which contains
+the necessary credentials to authenticate the request.
+
+Because of the significant security risks involved in issuing such access, bewit usage is purposely limited only to GET requests
+and for a finite period of time. Both the client and server can issue bewit credentials, however, the server should not use the same
+credentials as the client to maintain clear traceability as to who issued which credentials.
+
+In order to simplify implementation, bewit credentials do not support single-use policy and can be replayed multiple times within
+the granted access timeframe.
+
+
+## Bewit Usage Example
+
+Server code:
+
+```javascript
+const Http = require('http');
+const Hawk = require('hawk');
+
+
+// Credentials lookup function
+
+const credentialsFunc = function (id, callback) {
+
+    const credentials = {
+        key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
+        algorithm: 'sha256'
+    };
+
+    return callback(null, credentials);
+};
+
+// Create HTTP server
+
+const handler = function (req, res) {
+
+    Hawk.uri.authenticate(req, credentialsFunc, {}, (err, credentials, attributes) => {
+
+        res.writeHead(!err ? 200 : 401, { 'Content-Type': 'text/plain' });
+        res.end(!err ? 'Access granted' : 'Shoosh!');
+    });
+};
+
+Http.createServer(handler).listen(8000, 'example.com');
+```
+
+Bewit code generation:
+
+```javascript
+const Request = require('request');
+const Hawk = require('hawk');
+
+
+// Client credentials
+
+const credentials = {
+    id: 'dh37fgj492je',
+    key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
+    algorithm: 'sha256'
+}
+
+// Generate bewit
+
+const duration = 60 * 5;      // 5 Minutes
+const bewit = Hawk.uri.getBewit('http://example.com:8000/resource/1?b=1&a=2', { credentials: credentials, ttlSec: duration, ext: 'some-app-data' });
+const uri = 'http://example.com:8000/resource/1?b=1&a=2' + '&bewit=' + bewit;
+
+// Output URI
+
+console.log('URI: ' + uri);
+```
+
+
+# Security Considerations
+
+The greatest sources of security risks are usually found not in **Hawk** but in the policies and procedures surrounding its use.
+Implementers are strongly encouraged to assess how this module addresses their security requirements. This section includes
+an incomplete list of security considerations that must be reviewed and understood before deploying **Hawk** on the server.
+Many of the protections provided in **Hawk** depends on whether and how they are used.
+
+### MAC Keys Transmission
+
+**Hawk** does not provide any mechanism for obtaining or transmitting the set of shared credentials required. Any mechanism used
+to obtain **Hawk** credentials must ensure that these transmissions are protected using transport-layer mechanisms such as TLS.
+
+### Confidentiality of Requests
+
+While **Hawk** provides a mechanism for verifying the integrity of HTTP requests, it provides no guarantee of request
+confidentiality. Unless other precautions are taken, eavesdroppers will have full access to the request content. Servers should
+carefully consider the types of data likely to be sent as part of such requests, and employ transport-layer security mechanisms
+to protect sensitive resources.
+
+### Spoofing by Counterfeit Servers
+
+**Hawk** provides limited verification of the server authenticity. When receiving a response back from the server, the server
+may choose to include a response `Server-Authorization` header which the client can use to verify the response. However, it is up to
+the server to determine when such measure is included, to up to the client to enforce that policy.
+
+A hostile party could take advantage of this by intercepting the client's requests and returning misleading or otherwise
+incorrect responses. Service providers should consider such attacks when developing services using this protocol, and should
+require transport-layer security for any requests where the authenticity of the resource server or of server responses is an issue.
+
+### Plaintext Storage of Credentials
+
+The **Hawk** key functions the same way passwords do in traditional authentication systems. In order to compute the request MAC,
+the server must have access to the key in plaintext form. This is in contrast, for example, to modern operating systems, which
+store only a one-way hash of user credentials.
+
+If an attacker were to gain access to these keys - or worse, to the server's database of all such keys - he or she would be able
+to perform any action on behalf of any resource owner. Accordingly, it is critical that servers protect these keys from unauthorized
+access.
+
+### Entropy of Keys
+
+Unless a transport-layer security protocol is used, eavesdroppers will have full access to authenticated requests and request
+MAC values, and will thus be able to mount offline brute-force attacks to recover the key used. Servers should be careful to
+assign keys which are long enough, and random enough, to resist such attacks for at least the length of time that the **Hawk**
+credentials are valid.
+
+For example, if the credentials are valid for two weeks, servers should ensure that it is not possible to mount a brute force
+attack that recovers the key in less than two weeks. Of course, servers are urged to err on the side of caution, and use the
+longest key reasonable.
+
+It is equally important that the pseudo-random number generator (PRNG) used to generate these keys be of sufficiently high
+quality. Many PRNG implementations generate number sequences that may appear to be random, but which nevertheless exhibit
+patterns or other weaknesses which make cryptanalysis or brute force attacks easier. Implementers should be careful to use
+cryptographically secure PRNGs to avoid these problems.
+
+### Coverage Limitations
+
+The request MAC only covers the HTTP `Host` header and optionally the `Content-Type` header. It does not cover any other headers
+which can often affect how the request body is interpreted by the server. If the server behavior is influenced by the presence
+or value of such headers, an attacker can manipulate the request headers without being detected. Implementers should use the
+`ext` feature to pass application-specific information via the `Authorization` header which is protected by the request MAC.
+
+The response authentication, when performed, only covers the response payload, content-type, and the request information
+provided by the client in its request (method, resource, timestamp, nonce, etc.). It does not cover the HTTP status code or
+any other response header field (e.g. `Location`) which can affect the client's behaviour.
+
+### Future Time Manipulation
+
+The protocol relies on a clock sync between the client and server. To accomplish this, the server informs the client of its
+current time when an invalid timestamp is received.
+
+If an attacker is able to manipulate this information and cause the client to use an incorrect time, it would be able to cause
+the client to generate authenticated requests using time in the future. Such requests will fail when sent by the client, and will
+not likely leave a trace on the server (given the common implementation of nonce, if at all enforced). The attacker will then
+be able to replay the request at the correct time without detection.
+
+The client must only use the time information provided by the server if:
+* it was delivered over a TLS connection and the server identity has been verified, or
+* the `tsm` MAC digest calculated using the same client credentials over the timestamp has been verified.
+
+### Client Clock Poisoning
+
+When receiving a request with a bad timestamp, the server provides the client with its current time. The client must never use
+the time received from the server to adjust its own clock, and must only use it to calculate an offset for communicating with
+that particular server.
+
+### Bewit Limitations
+
+Special care must be taken when issuing bewit credentials to third parties. Bewit credentials are valid until expiration and cannot
+be revoked or limited without using other means. Whatever resource they grant access to will be completely exposed to anyone with
+access to the bewit credentials which act as bearer credentials for that particular resource. While bewit usage is limited to GET
+requests only and therefore cannot be used to perform transactions or change server state, it can still be used to expose private
+and sensitive information.
+
+### Host Header Forgery
+
+Hawk validates the incoming request MAC against the incoming HTTP Host header. However, unless the optional `host` and `port`
+options are used with `server.authenticate()`, a malicious client can mint new host names pointing to the server's IP address and
+use that to craft an attack by sending a valid request that's meant for another hostname than the one used by the server. Server
+implementors must manually verify that the host header received matches their expectation (or use the options mentioned above).
+
+# Frequently Asked Questions
+
+### Where is the protocol specification?
+
+If you are looking for some prose explaining how all this works, **this is it**. **Hawk** is being developed as an open source
+project instead of a standard. In other words, the [code](/hueniverse/hawk/tree/master/lib) is the specification. Not sure about
+something? Open an issue!
+
+### Is it done?
+
+As of version 0.10.0, **Hawk** is feature-complete. However, until this module reaches version 1.0.0 it is considered experimental
+and is likely to change. This also means your feedback and contribution are very welcome. Feel free to open issues with questions
+and suggestions.
+
+### Where can I find **Hawk** implementations in other languages?
+
+**Hawk**'s only reference implementation is provided in JavaScript as a node.js module. However, it has been ported to other languages.
+The full list is maintained [here](https://github.com/hueniverse/hawk/issues?labels=port&state=closed). Please add an issue if you are
+working on another port. A cross-platform test-suite is in the works.
+
+### Why isn't the algorithm part of the challenge or dynamically negotiated?
+
+The algorithm used is closely related to the key issued as different algorithms require different key sizes (and other
+requirements). While some keys can be used for multiple algorithm, the protocol is designed to closely bind the key and algorithm
+together as part of the issued credentials.
+
+### Why is Host and Content-Type the only headers covered by the request MAC?
+
+It is really hard to include other headers. Headers can be changed by proxies and other intermediaries and there is no
+well-established way to normalize them. Many platforms change the case of header field names and values. The only
+straight-forward solution is to include the headers in some blob (say, base64 encoded JSON) and include that with the request,
+an approach taken by JWT and other such formats. However, that design violates the HTTP header boundaries, repeats information,
+and introduces other security issues because firewalls will not be aware of these "hidden" headers. In addition, any information
+repeated must be compared to the duplicated information in the header and therefore only moves the problem elsewhere.
+
+### Why not just use HTTP Digest?
+
+Digest requires pre-negotiation to establish a nonce. This means you can't just make a request - you must first send
+a protocol handshake to the server. This pattern has become unacceptable for most web services, especially mobile
+where extra round-trip are costly.
+
+### Why bother with all this nonce and timestamp business?
+
+**Hawk** is an attempt to find a reasonable, practical compromise between security and usability. OAuth 1.0 got timestamp
+and nonces halfway right but failed when it came to scalability and consistent developer experience. **Hawk** addresses
+it by requiring the client to sync its clock, but provides it with tools to accomplish it.
+
+In general, replay protection is a matter of application-specific threat model. It is less of an issue on a TLS-protected
+system where the clients are implemented using best practices and are under the control of the server. Instead of dropping
+replay protection, **Hawk** offers a required time window and an optional nonce verification. Together, it provides developers
+with the ability to decide how to enforce their security policy without impacting the client's implementation.
+
+### What are `app` and `dlg` in the authorization header and normalized mac string?
+
+The original motivation for **Hawk** was to replace the OAuth 1.0 use cases. This included both a simple client-server mode which
+this module is specifically designed for, and a delegated access mode which is being developed separately in
+[Oz](https://github.com/hueniverse/oz). In addition to the **Hawk** use cases, Oz requires another attribute: the application id `app`.
+This provides binding between the credentials and the application in a way that prevents an attacker from tricking an application
+to use credentials issued to someone else. It also has an optional 'delegated-by' attribute `dlg` which is the application id of the
+application the credentials were directly issued to. The goal of these two additions is to allow Oz to utilize **Hawk** directly,
+but with the additional security of delegated credentials.
+
+### What is the purpose of the static strings used in each normalized MAC input?
+
+When calculating a hash or MAC, a static prefix (tag) is added. The prefix is used to prevent MAC values from being
+used or reused for a purpose other than what they were created for (i.e. prevents switching MAC values between a request,
+response, and a bewit use cases). It also protects against exploits created after a potential change in how the protocol
+creates the normalized string. For example, if a future version would switch the order of nonce and timestamp, it
+can create an exploit opportunity for cases where the nonce is similar in format to a timestamp.
+
+### Does **Hawk** have anything to do with OAuth?
+
+Short answer: no.
+
+**Hawk** was originally proposed as the OAuth MAC Token specification. However, the OAuth working group in its consistent
+incompetence failed to produce a final, usable solution to address one of the most popular use cases of OAuth 1.0 - using it
+to authenticate simple client-server transactions (i.e. two-legged). As you can guess, the OAuth working group is still hard
+at work to produce more garbage.
+
+**Hawk** provides a simple HTTP authentication scheme for making client-server requests. It does not address the OAuth use case
+of delegating access to a third party. If you are looking for an OAuth alternative, check out [Oz](https://github.com/hueniverse/oz).
+
+# Implementations
+
+- [Logibit Hawk in F#/.Net](https://github.com/logibit/logibit.hawk/)
+- [Tent Hawk in Ruby](https://github.com/tent/hawk-ruby)
+- [Wealdtech in Java](https://github.com/wealdtech/hawk)
+- [Kumar's Mohawk in Python](https://github.com/kumar303/mohawk/)
+- [Hiyosi in Go](https://github.com/hiyosi/hawk)
+
+# Acknowledgements
+
+**Hawk** is a derivative work of the [HTTP MAC Authentication Scheme](http://tools.ietf.org/html/draft-hammer-oauth-v2-mac-token-05) proposal
+co-authored by Ben Adida, Adam Barth, and Eran Hammer, which in turn was based on the OAuth 1.0 community specification.
+
+Special thanks to Ben Laurie for his always insightful feedback and advice.
+
+The **Hawk** logo was created by [Chris Carrasco](http://chriscarrasco.com).
diff --git a/node_modules/hawk/client.js b/node_modules/hawk/client.js
new file mode 100755
index 0000000..c7ff470
--- /dev/null
+++ b/node_modules/hawk/client.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('./dist/browser');
diff --git a/node_modules/hawk/dist/browser.js b/node_modules/hawk/dist/browser.js
new file mode 100644
index 0000000..4bb9b95
--- /dev/null
+++ b/node_modules/hawk/dist/browser.js
@@ -0,0 +1,793 @@
+'use strict';
+
+/*
+    HTTP Hawk Authentication Scheme
+    Copyright (c) 2012-2016, Eran Hammer <[email protected]>
+    BSD Licensed
+*/
+
+// Declare namespace
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var hawk = {
+    internals: {}
+};
+
+hawk.client = {
+
+    // Generate an Authorization header for a given request
+
+    /*
+        uri: 'http://example.com/resource?a=b' or object generated by hawk.utils.parseUri()
+        method: HTTP verb (e.g. 'GET', 'POST')
+        options: {
+             // Required
+             credentials: {
+                id: 'dh37fgj492je',
+                key: 'aoijedoaijsdlaksjdl',
+                algorithm: 'sha256'                                 // 'sha1', 'sha256'
+            },
+             // Optional
+             ext: 'application-specific',                        // Application specific data sent via the ext attribute
+            timestamp: Date.now() / 1000,                       // A pre-calculated timestamp in seconds
+            nonce: '2334f34f',                                  // A pre-generated nonce
+            localtimeOffsetMsec: 400,                           // Time offset to sync with server time (ignored if timestamp provided)
+            payload: '{"some":"payload"}',                      // UTF-8 encoded string for body hash generation (ignored if hash provided)
+            contentType: 'application/json',                    // Payload content-type (ignored if hash provided)
+            hash: 'U4MKKSmiVxk37JCCrAVIjV=',                    // Pre-calculated payload hash
+            app: '24s23423f34dx',                               // Oz application id
+            dlg: '234sz34tww3sd'                                // Oz delegated-by application id
+        }
+    */
+
+    header: function header(uri, method, options) {
+
+        var result = {
+            field: '',
+            artifacts: {}
+        };
+
+        // Validate inputs
+
+        if (!uri || typeof uri !== 'string' && (typeof uri === 'undefined' ? 'undefined' : _typeof(uri)) !== 'object' || !method || typeof method !== 'string' || !options || (typeof options === 'undefined' ? 'undefined' : _typeof(options)) !== 'object') {
+
+            result.err = 'Invalid argument type';
+            return result;
+        }
+
+        // Application time
+
+        var timestamp = options.timestamp || hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        var credentials = options.credentials;
+        if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
+
+            result.err = 'Invalid credentials object';
+            return result;
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            result.err = 'Unknown algorithm';
+            return result;
+        }
+
+        // Parse URI
+
+        if (typeof uri === 'string') {
+            uri = hawk.utils.parseUri(uri);
+        }
+
+        // Calculate signature
+
+        var artifacts = {
+            ts: timestamp,
+            nonce: options.nonce || hawk.utils.randomString(6),
+            method: method,
+            resource: uri.resource,
+            host: uri.host,
+            port: uri.port,
+            hash: options.hash,
+            ext: options.ext,
+            app: options.app,
+            dlg: options.dlg
+        };
+
+        result.artifacts = artifacts;
+
+        // Calculate payload hash
+
+        if (!artifacts.hash && (options.payload || options.payload === '')) {
+
+            artifacts.hash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
+        }
+
+        var mac = hawk.crypto.calculateMac('header', credentials, artifacts);
+
+        // Construct header
+
+        var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== ''; // Other falsey values allowed
+        var header = 'Hawk id="' + credentials.id + '", ts="' + artifacts.ts + '", nonce="' + artifacts.nonce + (artifacts.hash ? '", hash="' + artifacts.hash : '') + (hasExt ? '", ext="' + hawk.utils.escapeHeaderAttribute(artifacts.ext) : '') + '", mac="' + mac + '"';
+
+        if (artifacts.app) {
+            header += ', app="' + artifacts.app + (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"';
+        }
+
+        result.field = header;
+
+        return result;
+    },
+
+    // Generate a bewit value for a given URI
+
+    /*
+        uri: 'http://example.com/resource?a=b'
+        options: {
+             // Required
+             credentials: {
+            id: 'dh37fgj492je',
+            key: 'aoijedoaijsdlaksjdl',
+            algorithm: 'sha256'                             // 'sha1', 'sha256'
+            },
+            ttlSec: 60 * 60,                                    // TTL in seconds
+             // Optional
+             ext: 'application-specific',                        // Application specific data sent via the ext attribute
+            localtimeOffsetMsec: 400                            // Time offset to sync with server time
+         };
+    */
+
+    bewit: function bewit(uri, options) {
+
+        // Validate inputs
+
+        if (!uri || typeof uri !== 'string' || !options || (typeof options === 'undefined' ? 'undefined' : _typeof(options)) !== 'object' || !options.ttlSec) {
+
+            return '';
+        }
+
+        options.ext = options.ext === null || options.ext === undefined ? '' : options.ext; // Zero is valid value
+
+        // Application time
+
+        var now = hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        var credentials = options.credentials;
+        if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
+
+            return '';
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return '';
+        }
+
+        // Parse URI
+
+        uri = hawk.utils.parseUri(uri);
+
+        // Calculate signature
+
+        var exp = now + options.ttlSec;
+        var mac = hawk.crypto.calculateMac('bewit', credentials, {
+            ts: exp,
+            nonce: '',
+            method: 'GET',
+            resource: uri.resource, // Maintain trailing '?' and query params
+            host: uri.host,
+            port: uri.port,
+            ext: options.ext
+        });
+
+        // Construct bewit: id\exp\mac\ext
+
+        var bewit = credentials.id + '\\' + exp + '\\' + mac + '\\' + options.ext;
+        return hawk.utils.base64urlEncode(bewit);
+    },
+
+    // Validate server response
+
+    /*
+        request:    object created via 'new XMLHttpRequest()' after response received or fetch API 'Response'
+        artifacts:  object received from header().artifacts
+        options: {
+            payload:    optional payload received
+            required:   specifies if a Server-Authorization header is required. Defaults to 'false'
+        }
+    */
+
+    authenticate: function authenticate(request, credentials, artifacts, options) {
+
+        options = options || {};
+
+        var getHeader = function getHeader(name) {
+
+            // Fetch API or plain headers
+
+            if (request.headers) {
+                return typeof request.headers.get === 'function' ? request.headers.get(name) : request.headers[name];
+            }
+
+            // XMLHttpRequest
+
+            return request.getResponseHeader ? request.getResponseHeader(name) : request.getHeader(name);
+        };
+
+        var wwwAuthenticate = getHeader('www-authenticate');
+        if (wwwAuthenticate) {
+
+            // Parse HTTP WWW-Authenticate header
+
+            var wwwAttributes = hawk.utils.parseAuthorizationHeader(wwwAuthenticate, ['ts', 'tsm', 'error']);
+            if (!wwwAttributes) {
+                return false;
+            }
+
+            if (wwwAttributes.ts) {
+                var tsm = hawk.crypto.calculateTsMac(wwwAttributes.ts, credentials);
+                if (tsm !== wwwAttributes.tsm) {
+                    return false;
+                }
+
+                hawk.utils.setNtpSecOffset(wwwAttributes.ts - Math.floor(Date.now() / 1000)); // Keep offset at 1 second precision
+            }
+        }
+
+        // Parse HTTP Server-Authorization header
+
+        var serverAuthorization = getHeader('server-authorization');
+        if (!serverAuthorization && !options.required) {
+
+            return true;
+        }
+
+        var attributes = hawk.utils.parseAuthorizationHeader(serverAuthorization, ['mac', 'ext', 'hash']);
+        if (!attributes) {
+            return false;
+        }
+
+        var modArtifacts = {
+            ts: artifacts.ts,
+            nonce: artifacts.nonce,
+            method: artifacts.method,
+            resource: artifacts.resource,
+            host: artifacts.host,
+            port: artifacts.port,
+            hash: attributes.hash,
+            ext: attributes.ext,
+            app: artifacts.app,
+            dlg: artifacts.dlg
+        };
+
+        var mac = hawk.crypto.calculateMac('response', credentials, modArtifacts);
+        if (mac !== attributes.mac) {
+            return false;
+        }
+
+        if (!options.payload && options.payload !== '') {
+
+            return true;
+        }
+
+        if (!attributes.hash) {
+            return false;
+        }
+
+        var calculatedHash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, getHeader('content-type'));
+        return calculatedHash === attributes.hash;
+    },
+
+    message: function message(host, port, _message, options) {
+
+        // Validate inputs
+
+        if (!host || typeof host !== 'string' || !port || typeof port !== 'number' || _message === null || _message === undefined || typeof _message !== 'string' || !options || (typeof options === 'undefined' ? 'undefined' : _typeof(options)) !== 'object') {
+
+            return null;
+        }
+
+        // Application time
+
+        var timestamp = options.timestamp || hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        var credentials = options.credentials;
+        if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
+
+            // Invalid credential object
+            return null;
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return null;
+        }
+
+        // Calculate signature
+
+        var artifacts = {
+            ts: timestamp,
+            nonce: options.nonce || hawk.utils.randomString(6),
+            host: host,
+            port: port,
+            hash: hawk.crypto.calculatePayloadHash(_message, credentials.algorithm)
+        };
+
+        // Construct authorization
+
+        var result = {
+            id: credentials.id,
+            ts: artifacts.ts,
+            nonce: artifacts.nonce,
+            hash: artifacts.hash,
+            mac: hawk.crypto.calculateMac('message', credentials, artifacts)
+        };
+
+        return result;
+    },
+
+    authenticateTimestamp: function authenticateTimestamp(message, credentials, updateClock) {
+        // updateClock defaults to true
+
+        var tsm = hawk.crypto.calculateTsMac(message.ts, credentials);
+        if (tsm !== message.tsm) {
+            return false;
+        }
+
+        if (updateClock !== false) {
+            hawk.utils.setNtpSecOffset(message.ts - Math.floor(Date.now() / 1000)); // Keep offset at 1 second precision
+        }
+
+        return true;
+    }
+};
+
+hawk.crypto = {
+
+    headerVersion: '1',
+
+    algorithms: ['sha1', 'sha256'],
+
+    calculateMac: function calculateMac(type, credentials, options) {
+
+        var normalized = hawk.crypto.generateNormalizedString(type, options);
+
+        var hmac = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()](normalized, credentials.key);
+        return hmac.toString(CryptoJS.enc.Base64);
+    },
+
+    generateNormalizedString: function generateNormalizedString(type, options) {
+
+        var normalized = 'hawk.' + hawk.crypto.headerVersion + '.' + type + '\n' + options.ts + '\n' + options.nonce + '\n' + (options.method || '').toUpperCase() + '\n' + (options.resource || '') + '\n' + options.host.toLowerCase() + '\n' + options.port + '\n' + (options.hash || '') + '\n';
+
+        if (options.ext) {
+            normalized += options.ext.replace('\\', '\\\\').replace('\n', '\\n');
+        }
+
+        normalized += '\n';
+
+        if (options.app) {
+            normalized += options.app + '\n' + (options.dlg || '') + '\n';
+        }
+
+        return normalized;
+    },
+
+    calculatePayloadHash: function calculatePayloadHash(payload, algorithm, contentType) {
+
+        var hash = CryptoJS.algo[algorithm.toUpperCase()].create();
+        hash.update('hawk.' + hawk.crypto.headerVersion + '.payload\n');
+        hash.update(hawk.utils.parseContentType(contentType) + '\n');
+        hash.update(payload);
+        hash.update('\n');
+        return hash.finalize().toString(CryptoJS.enc.Base64);
+    },
+
+    calculateTsMac: function calculateTsMac(ts, credentials) {
+
+        var hash = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()]('hawk.' + hawk.crypto.headerVersion + '.ts\n' + ts + '\n', credentials.key);
+        return hash.toString(CryptoJS.enc.Base64);
+    }
+};
+
+// localStorage compatible interface
+
+hawk.internals.LocalStorage = function () {
+
+    this._cache = {};
+    this.length = 0;
+
+    this.getItem = function (key) {
+
+        return this._cache.hasOwnProperty(key) ? String(this._cache[key]) : null;
+    };
+
+    this.setItem = function (key, value) {
+
+        this._cache[key] = String(value);
+        this.length = Object.keys(this._cache).length;
+    };
+
+    this.removeItem = function (key) {
+
+        delete this._cache[key];
+        this.length = Object.keys(this._cache).length;
+    };
+
+    this.clear = function () {
+
+        this._cache = {};
+        this.length = 0;
+    };
+
+    this.key = function (i) {
+
+        return Object.keys(this._cache)[i || 0];
+    };
+};
+
+hawk.utils = {
+
+    storage: new hawk.internals.LocalStorage(),
+
+    setStorage: function setStorage(storage) {
+
+        var ntpOffset = hawk.utils.storage.getItem('hawk_ntp_offset');
+        hawk.utils.storage = storage;
+        if (ntpOffset) {
+            hawk.utils.setNtpSecOffset(ntpOffset);
+        }
+    },
+
+    setNtpSecOffset: function setNtpSecOffset(offset) {
+
+        try {
+            hawk.utils.storage.setItem('hawk_ntp_offset', offset);
+        } catch (err) {
+            console.error('[hawk] could not write to storage.');
+            console.error(err);
+        }
+    },
+
+    getNtpSecOffset: function getNtpSecOffset() {
+
+        var offset = hawk.utils.storage.getItem('hawk_ntp_offset');
+        if (!offset) {
+            return 0;
+        }
+
+        return parseInt(offset, 10);
+    },
+
+    now: function now(localtimeOffsetMsec) {
+
+        return Date.now() + (localtimeOffsetMsec || 0) + hawk.utils.getNtpSecOffset() * 1000;
+    },
+
+    nowSec: function nowSec(localtimeOffsetMsec) {
+
+        return Math.floor(hawk.utils.now(localtimeOffsetMsec) / 1000);
+    },
+
+    escapeHeaderAttribute: function escapeHeaderAttribute(attribute) {
+
+        return attribute.replace(/\\/g, '\\\\').replace(/\"/g, '\\"');
+    },
+
+    parseContentType: function parseContentType(header) {
+
+        if (!header) {
+            return '';
+        }
+
+        return header.split(';')[0].replace(/^\s+|\s+$/g, '').toLowerCase();
+    },
+
+    parseAuthorizationHeader: function parseAuthorizationHeader(header, keys) {
+
+        if (!header) {
+            return null;
+        }
+
+        var headerParts = header.match(/^(\w+)(?:\s+(.*))?$/); // Header: scheme[ something]
+        if (!headerParts) {
+            return null;
+        }
+
+        var scheme = headerParts[1];
+        if (scheme.toLowerCase() !== 'hawk') {
+            return null;
+        }
+
+        var attributesString = headerParts[2];
+        if (!attributesString) {
+            return null;
+        }
+
+        var attributes = {};
+        var verify = attributesString.replace(/(\w+)="([^"\\]*)"\s*(?:,\s*|$)/g, function ($0, $1, $2) {
+
+            // Check valid attribute names
+
+            if (keys.indexOf($1) === -1) {
+                return;
+            }
+
+            // Allowed attribute value characters: !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9
+
+            if ($2.match(/^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~]+$/) === null) {
+                return;
+            }
+
+            // Check for duplicates
+
+            if (attributes.hasOwnProperty($1)) {
+                return;
+            }
+
+            attributes[$1] = $2;
+            return '';
+        });
+
+        if (verify !== '') {
+            return null;
+        }
+
+        return attributes;
+    },
+
+    randomString: function randomString(size) {
+
+        var randomSource = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+        var len = randomSource.length;
+
+        var result = [];
+        for (var i = 0; i < size; ++i) {
+            result[i] = randomSource[Math.floor(Math.random() * len)];
+        }
+
+        return result.join('');
+    },
+
+    //          1                        2             3      4
+    uriRegex: /^([^:]+)\:\/\/(?:[^@/]*@)?([^\/:]+)(?:\:(\d+))?([^#]*)(?:#.*)?$/, // scheme://credentials@host:port/resource#fragment
+    parseUri: function parseUri(input) {
+
+        var parts = input.match(hawk.utils.uriRegex);
+        if (!parts) {
+            return { host: '', port: '', resource: '' };
+        }
+
+        var scheme = parts[1].toLowerCase();
+        var uri = {
+            host: parts[2],
+            port: parts[3] || (scheme === 'http' ? '80' : scheme === 'https' ? '443' : ''),
+            resource: parts[4]
+        };
+
+        return uri;
+    },
+
+    base64urlEncode: function base64urlEncode(value) {
+
+        var wordArray = CryptoJS.enc.Utf8.parse(value);
+        var encoded = CryptoJS.enc.Base64.stringify(wordArray);
+        return encoded.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
+    }
+};
+
+// $lab:coverage:off$
+/* eslint-disable */
+
+// Based on: Crypto-JS v3.1.2
+// Copyright (c) 2009-2013, Jeff Mott. All rights reserved.
+// http://code.google.com/p/crypto-js/
+// http://code.google.com/p/crypto-js/wiki/License
+
+var CryptoJS = CryptoJS || function (h, r) {
+    var k = {},
+        l = k.lib = {},
+        n = function n() {},
+        f = l.Base = { extend: function extend(a) {
+            n.prototype = this;var b = new n();a && b.mixIn(a);b.hasOwnProperty("init") || (b.init = function () {
+                b.$super.init.apply(this, arguments);
+            });b.init.prototype = b;b.$super = this;return b;
+        }, create: function create() {
+            var a = this.extend();a.init.apply(a, arguments);return a;
+        }, init: function init() {}, mixIn: function mixIn(a) {
+            for (var _b in a) {
+                a.hasOwnProperty(_b) && (this[_b] = a[_b]);
+            }a.hasOwnProperty("toString") && (this.toString = a.toString);
+        }, clone: function clone() {
+            return this.init.prototype.extend(this);
+        } },
+        j = l.WordArray = f.extend({ init: function init(a, b) {
+            a = this.words = a || [];this.sigBytes = b != r ? b : 4 * a.length;
+        }, toString: function toString(a) {
+            return (a || s).stringify(this);
+        }, concat: function concat(a) {
+            var b = this.words,
+                d = a.words,
+                c = this.sigBytes;a = a.sigBytes;this.clamp();if (c % 4) for (var e = 0; e < a; e++) {
+                b[c + e >>> 2] |= (d[e >>> 2] >>> 24 - 8 * (e % 4) & 255) << 24 - 8 * ((c + e) % 4);
+            } else if (65535 < d.length) for (var _e = 0; _e < a; _e += 4) {
+                b[c + _e >>> 2] = d[_e >>> 2];
+            } else b.push.apply(b, d);this.sigBytes += a;return this;
+        }, clamp: function clamp() {
+            var a = this.words,
+                b = this.sigBytes;a[b >>> 2] &= 4294967295 << 32 - 8 * (b % 4);a.length = h.ceil(b / 4);
+        }, clone: function clone() {
+            var a = f.clone.call(this);a.words = this.words.slice(0);return a;
+        }, random: function random(a) {
+            for (var _b2 = [], d = 0; d < a; d += 4) {
+                _b2.push(4294967296 * h.random() | 0);
+            }return new j.init(b, a);
+        } }),
+        m = k.enc = {},
+        s = m.Hex = { stringify: function stringify(a) {
+            var b = a.words;a = a.sigBytes;for (var d = [], c = 0; c < a; c++) {
+                var e = b[c >>> 2] >>> 24 - 8 * (c % 4) & 255;d.push((e >>> 4).toString(16));d.push((e & 15).toString(16));
+            }return d.join("");
+        }, parse: function parse(a) {
+            for (var b = a.length, d = [], c = 0; c < b; c += 2) {
+                d[c >>> 3] |= parseInt(a.substr(c, 2), 16) << 24 - 4 * (c % 8);
+            }return new j.init(d, b / 2);
+        } },
+        p = m.Latin1 = { stringify: function stringify(a) {
+            var b = a.words;a = a.sigBytes;for (var d = [], c = 0; c < a; c++) {
+                d.push(String.fromCharCode(b[c >>> 2] >>> 24 - 8 * (c % 4) & 255));
+            }return d.join("");
+        }, parse: function parse(a) {
+            for (var b = a.length, d = [], c = 0; c < b; c++) {
+                d[c >>> 2] |= (a.charCodeAt(c) & 255) << 24 - 8 * (c % 4);
+            }return new j.init(d, b);
+        } },
+        t = m.Utf8 = { stringify: function stringify(a) {
+            try {
+                return decodeURIComponent(escape(p.stringify(a)));
+            } catch (b) {
+                throw Error("Malformed UTF-8 data");
+            }
+        }, parse: function parse(a) {
+            return p.parse(unescape(encodeURIComponent(a)));
+        } },
+        q = l.BufferedBlockAlgorithm = f.extend({ reset: function reset() {
+            this._data = new j.init();this._nDataBytes = 0;
+        }, _append: function _append(a) {
+            "string" == typeof a && (a = t.parse(a));this._data.concat(a);this._nDataBytes += a.sigBytes;
+        }, _process: function _process(a) {
+            var b = this._data,
+                d = b.words,
+                c = b.sigBytes,
+                e = this.blockSize,
+                f = c / (4 * e),
+                f = a ? h.ceil(f) : h.max((f | 0) - this._minBufferSize, 0);a = f * e;c = h.min(4 * a, c);if (a) {
+                for (var g = 0; g < a; g += e) {
+                    this._doProcessBlock(d, g);
+                }g = d.splice(0, a);b.sigBytes -= c;
+            }return new j.init(g, c);
+        }, clone: function clone() {
+            var a = f.clone.call(this);a._data = this._data.clone();return a;
+        }, _minBufferSize: 0 });l.Hasher = q.extend({ cfg: f.extend(), init: function init(a) {
+            this.cfg = this.cfg.extend(a);this.reset();
+        }, reset: function reset() {
+            q.reset.call(this);this._doReset();
+        }, update: function update(a) {
+            this._append(a);this._process();return this;
+        }, finalize: function finalize(a) {
+            a && this._append(a);return this._doFinalize();
+        }, blockSize: 16, _createHelper: function _createHelper(a) {
+            return function (b, d) {
+                return new a.init(d).finalize(b);
+            };
+        }, _createHmacHelper: function _createHmacHelper(a) {
+            return function (b, d) {
+                return new u.HMAC.init(a, d).finalize(b);
+            };
+        } });var u = k.algo = {};return k;
+}(Math);
+(function () {
+    var k = CryptoJS,
+        b = k.lib,
+        m = b.WordArray,
+        l = b.Hasher,
+        d = [],
+        b = k.algo.SHA1 = l.extend({ _doReset: function _doReset() {
+            this._hash = new m.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]);
+        }, _doProcessBlock: function _doProcessBlock(n, p) {
+            for (var a = this._hash.words, e = a[0], f = a[1], h = a[2], j = a[3], b = a[4], c = 0; 80 > c; c++) {
+                if (16 > c) d[c] = n[p + c] | 0;else {
+                    var g = d[c - 3] ^ d[c - 8] ^ d[c - 14] ^ d[c - 16];d[c] = g << 1 | g >>> 31;
+                }g = (e << 5 | e >>> 27) + b + d[c];g = 20 > c ? g + ((f & h | ~f & j) + 1518500249) : 40 > c ? g + ((f ^ h ^ j) + 1859775393) : 60 > c ? g + ((f & h | f & j | h & j) - 1894007588) : g + ((f ^ h ^ j) - 899497514);b = j;j = h;h = f << 30 | f >>> 2;f = e;e = g;
+            }a[0] = a[0] + e | 0;a[1] = a[1] + f | 0;a[2] = a[2] + h | 0;a[3] = a[3] + j | 0;a[4] = a[4] + b | 0;
+        }, _doFinalize: function _doFinalize() {
+            var b = this._data,
+                d = b.words,
+                a = 8 * this._nDataBytes,
+                e = 8 * b.sigBytes;d[e >>> 5] |= 128 << 24 - e % 32;d[(e + 64 >>> 9 << 4) + 14] = Math.floor(a / 4294967296);d[(e + 64 >>> 9 << 4) + 15] = a;b.sigBytes = 4 * d.length;this._process();return this._hash;
+        }, clone: function clone() {
+            var b = l.clone.call(this);b._hash = this._hash.clone();return b;
+        } });k.SHA1 = l._createHelper(b);k.HmacSHA1 = l._createHmacHelper(b);
+})();
+(function (k) {
+    for (var g = CryptoJS, h = g.lib, v = h.WordArray, j = h.Hasher, h = g.algo, s = [], t = [], u = function u(q) {
+        return 4294967296 * (q - (q | 0)) | 0;
+    }, l = 2, b = 0; 64 > b;) {
+        var d;a: {
+            d = l;for (var w = k.sqrt(d), r = 2; r <= w; r++) {
+                if (!(d % r)) {
+                    d = !1;break a;
+                }
+            }d = !0;
+        }d && (8 > b && (s[b] = u(k.pow(l, 0.5))), t[b] = u(k.pow(l, 1 / 3)), b++);l++;
+    }var n = [],
+        h = h.SHA256 = j.extend({ _doReset: function _doReset() {
+            this._hash = new v.init(s.slice(0));
+        }, _doProcessBlock: function _doProcessBlock(q, h) {
+            for (var a = this._hash.words, c = a[0], d = a[1], b = a[2], k = a[3], f = a[4], g = a[5], j = a[6], l = a[7], e = 0; 64 > e; e++) {
+                if (16 > e) n[e] = q[h + e] | 0;else {
+                    var m = n[e - 15],
+                        p = n[e - 2];n[e] = ((m << 25 | m >>> 7) ^ (m << 14 | m >>> 18) ^ m >>> 3) + n[e - 7] + ((p << 15 | p >>> 17) ^ (p << 13 | p >>> 19) ^ p >>> 10) + n[e - 16];
+                }m = l + ((f << 26 | f >>> 6) ^ (f << 21 | f >>> 11) ^ (f << 7 | f >>> 25)) + (f & g ^ ~f & j) + t[e] + n[e];p = ((c << 30 | c >>> 2) ^ (c << 19 | c >>> 13) ^ (c << 10 | c >>> 22)) + (c & d ^ c & b ^ d & b);l = j;j = g;g = f;f = k + m | 0;k = b;b = d;d = c;c = m + p | 0;
+            }a[0] = a[0] + c | 0;a[1] = a[1] + d | 0;a[2] = a[2] + b | 0;a[3] = a[3] + k | 0;a[4] = a[4] + f | 0;a[5] = a[5] + g | 0;a[6] = a[6] + j | 0;a[7] = a[7] + l | 0;
+        }, _doFinalize: function _doFinalize() {
+            var d = this._data,
+                b = d.words,
+                a = 8 * this._nDataBytes,
+                c = 8 * d.sigBytes;b[c >>> 5] |= 128 << 24 - c % 32;b[(c + 64 >>> 9 << 4) + 14] = k.floor(a / 4294967296);b[(c + 64 >>> 9 << 4) + 15] = a;d.sigBytes = 4 * b.length;this._process();return this._hash;
+        }, clone: function clone() {
+            var b = j.clone.call(this);b._hash = this._hash.clone();return b;
+        } });g.SHA256 = j._createHelper(h);g.HmacSHA256 = j._createHmacHelper(h);
+})(Math);
+(function () {
+    var c = CryptoJS,
+        k = c.enc.Utf8;c.algo.HMAC = c.lib.Base.extend({ init: function init(a, b) {
+            a = this._hasher = new a.init();"string" == typeof b && (b = k.parse(b));var c = a.blockSize,
+                e = 4 * c;b.sigBytes > e && (b = a.finalize(b));b.clamp();for (var f = this._oKey = b.clone(), g = this._iKey = b.clone(), h = f.words, j = g.words, d = 0; d < c; d++) {
+                h[d] ^= 1549556828, j[d] ^= 909522486;
+            }f.sigBytes = g.sigBytes = e;this.reset();
+        }, reset: function reset() {
+            var a = this._hasher;a.reset();a.update(this._iKey);
+        }, update: function update(a) {
+            this._hasher.update(a);return this;
+        }, finalize: function finalize(a) {
+            var b = this._hasher;a = b.finalize(a);b.reset();return b.finalize(this._oKey.clone().concat(a));
+        } });
+})();
+(function () {
+    var h = CryptoJS,
+        j = h.lib.WordArray;h.enc.Base64 = { stringify: function stringify(b) {
+            var e = b.words,
+                f = b.sigBytes,
+                c = this._map;b.clamp();b = [];for (var a = 0; a < f; a += 3) {
+                for (var d = (e[a >>> 2] >>> 24 - 8 * (a % 4) & 255) << 16 | (e[a + 1 >>> 2] >>> 24 - 8 * ((a + 1) % 4) & 255) << 8 | e[a + 2 >>> 2] >>> 24 - 8 * ((a + 2) % 4) & 255, g = 0; 4 > g && a + 0.75 * g < f; g++) {
+                    b.push(c.charAt(d >>> 6 * (3 - g) & 63));
+                }
+            }if (e = c.charAt(64)) for (; b.length % 4;) {
+                b.push(e);
+            }return b.join("");
+        }, parse: function parse(b) {
+            var e = b.length,
+                f = this._map,
+                c = f.charAt(64);c && (c = b.indexOf(c), -1 != c && (e = c));for (var c = [], a = 0, d = 0; d < e; d++) {
+                if (d % 4) {
+                    var g = f.indexOf(b.charAt(d - 1)) << 2 * (d % 4),
+                        h = f.indexOf(b.charAt(d)) >>> 6 - 2 * (d % 4);c[a >>> 2] |= (g | h) << 24 - 8 * (a % 4);a++;
+                }
+            }return j.create(c, a);
+        }, _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=" };
+})();
+
+hawk.crypto.utils = CryptoJS;
+
+// Export if used as a module
+
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = hawk;
+}
+
+/* eslint-enable */
+// $lab:coverage:on$
diff --git a/node_modules/hawk/lib/browser.js b/node_modules/hawk/lib/browser.js
new file mode 100755
index 0000000..6635ce5
--- /dev/null
+++ b/node_modules/hawk/lib/browser.js
@@ -0,0 +1,653 @@
+'use strict';
+
+/*
+    HTTP Hawk Authentication Scheme
+    Copyright (c) 2012-2016, Eran Hammer <[email protected]>
+    BSD Licensed
+*/
+
+
+// Declare namespace
+
+const hawk = {
+    internals: {}
+};
+
+
+hawk.client = {
+
+    // Generate an Authorization header for a given request
+
+    /*
+        uri: 'http://example.com/resource?a=b' or object generated by hawk.utils.parseUri()
+        method: HTTP verb (e.g. 'GET', 'POST')
+        options: {
+
+            // Required
+
+            credentials: {
+                id: 'dh37fgj492je',
+                key: 'aoijedoaijsdlaksjdl',
+                algorithm: 'sha256'                                 // 'sha1', 'sha256'
+            },
+
+            // Optional
+
+            ext: 'application-specific',                        // Application specific data sent via the ext attribute
+            timestamp: Date.now() / 1000,                       // A pre-calculated timestamp in seconds
+            nonce: '2334f34f',                                  // A pre-generated nonce
+            localtimeOffsetMsec: 400,                           // Time offset to sync with server time (ignored if timestamp provided)
+            payload: '{"some":"payload"}',                      // UTF-8 encoded string for body hash generation (ignored if hash provided)
+            contentType: 'application/json',                    // Payload content-type (ignored if hash provided)
+            hash: 'U4MKKSmiVxk37JCCrAVIjV=',                    // Pre-calculated payload hash
+            app: '24s23423f34dx',                               // Oz application id
+            dlg: '234sz34tww3sd'                                // Oz delegated-by application id
+        }
+    */
+
+    header: function (uri, method, options) {
+
+        const result = {
+            field: '',
+            artifacts: {}
+        };
+
+        // Validate inputs
+
+        if (!uri || (typeof uri !== 'string' && typeof uri !== 'object') ||
+            !method || typeof method !== 'string' ||
+            !options || typeof options !== 'object') {
+
+            result.err = 'Invalid argument type';
+            return result;
+        }
+
+        // Application time
+
+        const timestamp = options.timestamp || hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        const credentials = options.credentials;
+        if (!credentials ||
+            !credentials.id ||
+            !credentials.key ||
+            !credentials.algorithm) {
+
+            result.err = 'Invalid credentials object';
+            return result;
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            result.err = 'Unknown algorithm';
+            return result;
+        }
+
+        // Parse URI
+
+        if (typeof uri === 'string') {
+            uri = hawk.utils.parseUri(uri);
+        }
+
+        // Calculate signature
+
+        const artifacts = {
+            ts: timestamp,
+            nonce: options.nonce || hawk.utils.randomString(6),
+            method,
+            resource: uri.resource,
+            host: uri.host,
+            port: uri.port,
+            hash: options.hash,
+            ext: options.ext,
+            app: options.app,
+            dlg: options.dlg
+        };
+
+        result.artifacts = artifacts;
+
+        // Calculate payload hash
+
+        if (!artifacts.hash &&
+            (options.payload || options.payload === '')) {
+
+            artifacts.hash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
+        }
+
+        const mac = hawk.crypto.calculateMac('header', credentials, artifacts);
+
+        // Construct header
+
+        const hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== '';       // Other falsey values allowed
+        let header = 'Hawk id="' + credentials.id +
+                     '", ts="' + artifacts.ts +
+                     '", nonce="' + artifacts.nonce +
+                     (artifacts.hash ? '", hash="' + artifacts.hash : '') +
+                     (hasExt ? '", ext="' + hawk.utils.escapeHeaderAttribute(artifacts.ext) : '') +
+                     '", mac="' + mac + '"';
+
+        if (artifacts.app) {
+            header += ', app="' + artifacts.app +
+                      (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"';
+        }
+
+        result.field = header;
+
+        return result;
+    },
+
+    // Generate a bewit value for a given URI
+
+    /*
+        uri: 'http://example.com/resource?a=b'
+        options: {
+
+            // Required
+
+            credentials: {
+            id: 'dh37fgj492je',
+            key: 'aoijedoaijsdlaksjdl',
+            algorithm: 'sha256'                             // 'sha1', 'sha256'
+            },
+            ttlSec: 60 * 60,                                    // TTL in seconds
+
+            // Optional
+
+            ext: 'application-specific',                        // Application specific data sent via the ext attribute
+            localtimeOffsetMsec: 400                            // Time offset to sync with server time
+         };
+    */
+
+    bewit: function (uri, options) {
+
+        // Validate inputs
+
+        if (!uri ||
+            (typeof uri !== 'string') ||
+            !options ||
+            typeof options !== 'object' ||
+            !options.ttlSec) {
+
+            return '';
+        }
+
+        options.ext = (options.ext === null || options.ext === undefined ? '' : options.ext);       // Zero is valid value
+
+        // Application time
+
+        const now = hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        const credentials = options.credentials;
+        if (!credentials ||
+            !credentials.id ||
+            !credentials.key ||
+            !credentials.algorithm) {
+
+            return '';
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return '';
+        }
+
+        // Parse URI
+
+        uri = hawk.utils.parseUri(uri);
+
+        // Calculate signature
+
+        const exp = now + options.ttlSec;
+        const mac = hawk.crypto.calculateMac('bewit', credentials, {
+            ts: exp,
+            nonce: '',
+            method: 'GET',
+            resource: uri.resource,                            // Maintain trailing '?' and query params
+            host: uri.host,
+            port: uri.port,
+            ext: options.ext
+        });
+
+        // Construct bewit: id\exp\mac\ext
+
+        const bewit = credentials.id + '\\' + exp + '\\' + mac + '\\' + options.ext;
+        return hawk.utils.base64urlEncode(bewit);
+    },
+
+    // Validate server response
+
+    /*
+        request:    object created via 'new XMLHttpRequest()' after response received or fetch API 'Response'
+        artifacts:  object received from header().artifacts
+        options: {
+            payload:    optional payload received
+            required:   specifies if a Server-Authorization header is required. Defaults to 'false'
+        }
+    */
+
+    authenticate: function (request, credentials, artifacts, options) {
+
+        options = options || {};
+
+        const getHeader = function (name) {
+
+            // Fetch API or plain headers
+
+            if (request.headers) {
+                return (typeof request.headers.get === 'function' ? request.headers.get(name) : request.headers[name]);
+            }
+
+            // XMLHttpRequest
+
+            return (request.getResponseHeader ? request.getResponseHeader(name) : request.getHeader(name));
+        };
+
+        const wwwAuthenticate = getHeader('www-authenticate');
+        if (wwwAuthenticate) {
+
+            // Parse HTTP WWW-Authenticate header
+
+            const wwwAttributes = hawk.utils.parseAuthorizationHeader(wwwAuthenticate, ['ts', 'tsm', 'error']);
+            if (!wwwAttributes) {
+                return false;
+            }
+
+            if (wwwAttributes.ts) {
+                const tsm = hawk.crypto.calculateTsMac(wwwAttributes.ts, credentials);
+                if (tsm !== wwwAttributes.tsm) {
+                    return false;
+                }
+
+                hawk.utils.setNtpSecOffset(wwwAttributes.ts - Math.floor(Date.now() / 1000));      // Keep offset at 1 second precision
+            }
+        }
+
+        // Parse HTTP Server-Authorization header
+
+        const serverAuthorization = getHeader('server-authorization');
+        if (!serverAuthorization &&
+            !options.required) {
+
+            return true;
+        }
+
+        const attributes = hawk.utils.parseAuthorizationHeader(serverAuthorization, ['mac', 'ext', 'hash']);
+        if (!attributes) {
+            return false;
+        }
+
+        const modArtifacts = {
+            ts: artifacts.ts,
+            nonce: artifacts.nonce,
+            method: artifacts.method,
+            resource: artifacts.resource,
+            host: artifacts.host,
+            port: artifacts.port,
+            hash: attributes.hash,
+            ext: attributes.ext,
+            app: artifacts.app,
+            dlg: artifacts.dlg
+        };
+
+        const mac = hawk.crypto.calculateMac('response', credentials, modArtifacts);
+        if (mac !== attributes.mac) {
+            return false;
+        }
+
+        if (!options.payload &&
+            options.payload !== '') {
+
+            return true;
+        }
+
+        if (!attributes.hash) {
+            return false;
+        }
+
+        const calculatedHash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, getHeader('content-type'));
+        return (calculatedHash === attributes.hash);
+    },
+
+    message: function (host, port, message, options) {
+
+        // Validate inputs
+
+        if (!host || typeof host !== 'string' ||
+            !port || typeof port !== 'number' ||
+            message === null || message === undefined || typeof message !== 'string' ||
+            !options || typeof options !== 'object') {
+
+            return null;
+        }
+
+        // Application time
+
+        const timestamp = options.timestamp || hawk.utils.nowSec(options.localtimeOffsetMsec);
+
+        // Validate credentials
+
+        const credentials = options.credentials;
+        if (!credentials ||
+            !credentials.id ||
+            !credentials.key ||
+            !credentials.algorithm) {
+
+            // Invalid credential object
+            return null;
+        }
+
+        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return null;
+        }
+
+        // Calculate signature
+
+        const artifacts = {
+            ts: timestamp,
+            nonce: options.nonce || hawk.utils.randomString(6),
+            host,
+            port,
+            hash: hawk.crypto.calculatePayloadHash(message, credentials.algorithm)
+        };
+
+        // Construct authorization
+
+        const result = {
+            id: credentials.id,
+            ts: artifacts.ts,
+            nonce: artifacts.nonce,
+            hash: artifacts.hash,
+            mac: hawk.crypto.calculateMac('message', credentials, artifacts)
+        };
+
+        return result;
+    },
+
+    authenticateTimestamp: function (message, credentials, updateClock) {               // updateClock defaults to true
+
+        const tsm = hawk.crypto.calculateTsMac(message.ts, credentials);
+        if (tsm !== message.tsm) {
+            return false;
+        }
+
+        if (updateClock !== false) {
+            hawk.utils.setNtpSecOffset(message.ts - Math.floor(Date.now() / 1000));     // Keep offset at 1 second precision
+        }
+
+        return true;
+    }
+};
+
+
+hawk.crypto = {
+
+    headerVersion: '1',
+
+    algorithms: ['sha1', 'sha256'],
+
+    calculateMac: function (type, credentials, options) {
+
+        const normalized = hawk.crypto.generateNormalizedString(type, options);
+
+        const hmac = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()](normalized, credentials.key);
+        return hmac.toString(CryptoJS.enc.Base64);
+    },
+
+    generateNormalizedString: function (type, options) {
+
+        let normalized = 'hawk.' + hawk.crypto.headerVersion + '.' + type + '\n' +
+                         options.ts + '\n' +
+                         options.nonce + '\n' +
+                         (options.method || '').toUpperCase() + '\n' +
+                         (options.resource || '') + '\n' +
+                         options.host.toLowerCase() + '\n' +
+                         options.port + '\n' +
+                         (options.hash || '') + '\n';
+
+        if (options.ext) {
+            normalized += options.ext.replace('\\', '\\\\').replace('\n', '\\n');
+        }
+
+        normalized += '\n';
+
+        if (options.app) {
+            normalized += options.app + '\n' +
+                          (options.dlg || '') + '\n';
+        }
+
+        return normalized;
+    },
+
+    calculatePayloadHash: function (payload, algorithm, contentType) {
+
+        const hash = CryptoJS.algo[algorithm.toUpperCase()].create();
+        hash.update('hawk.' + hawk.crypto.headerVersion + '.payload\n');
+        hash.update(hawk.utils.parseContentType(contentType) + '\n');
+        hash.update(payload);
+        hash.update('\n');
+        return hash.finalize().toString(CryptoJS.enc.Base64);
+    },
+
+    calculateTsMac: function (ts, credentials) {
+
+        const hash = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()]('hawk.' + hawk.crypto.headerVersion + '.ts\n' + ts + '\n', credentials.key);
+        return hash.toString(CryptoJS.enc.Base64);
+    }
+};
+
+
+// localStorage compatible interface
+
+hawk.internals.LocalStorage = function () {
+
+    this._cache = {};
+    this.length = 0;
+
+    this.getItem = function (key) {
+
+        return this._cache.hasOwnProperty(key) ? String(this._cache[key]) : null;
+    };
+
+    this.setItem = function (key, value) {
+
+        this._cache[key] = String(value);
+        this.length = Object.keys(this._cache).length;
+    };
+
+    this.removeItem = function (key) {
+
+        delete this._cache[key];
+        this.length = Object.keys(this._cache).length;
+    };
+
+    this.clear = function () {
+
+        this._cache = {};
+        this.length = 0;
+    };
+
+    this.key = function (i) {
+
+        return Object.keys(this._cache)[i || 0];
+    };
+};
+
+
+hawk.utils = {
+
+    storage: new hawk.internals.LocalStorage(),
+
+    setStorage: function (storage) {
+
+        const ntpOffset = hawk.utils.storage.getItem('hawk_ntp_offset');
+        hawk.utils.storage = storage;
+        if (ntpOffset) {
+            hawk.utils.setNtpSecOffset(ntpOffset);
+        }
+    },
+
+    setNtpSecOffset: function (offset) {
+
+        try {
+            hawk.utils.storage.setItem('hawk_ntp_offset', offset);
+        }
+        catch (err) {
+            console.error('[hawk] could not write to storage.');
+            console.error(err);
+        }
+    },
+
+    getNtpSecOffset: function () {
+
+        const offset = hawk.utils.storage.getItem('hawk_ntp_offset');
+        if (!offset) {
+            return 0;
+        }
+
+        return parseInt(offset, 10);
+    },
+
+    now: function (localtimeOffsetMsec) {
+
+        return Date.now() + (localtimeOffsetMsec || 0) + (hawk.utils.getNtpSecOffset() * 1000);
+    },
+
+    nowSec: function (localtimeOffsetMsec) {
+
+        return Math.floor(hawk.utils.now(localtimeOffsetMsec) / 1000);
+    },
+
+    escapeHeaderAttribute: function (attribute) {
+
+        return attribute.replace(/\\/g, '\\\\').replace(/\"/g, '\\"');
+    },
+
+    parseContentType: function (header) {
+
+        if (!header) {
+            return '';
+        }
+
+        return header.split(';')[0].replace(/^\s+|\s+$/g, '').toLowerCase();
+    },
+
+    parseAuthorizationHeader: function (header, keys) {
+
+        if (!header) {
+            return null;
+        }
+
+        const headerParts = header.match(/^(\w+)(?:\s+(.*))?$/);       // Header: scheme[ something]
+        if (!headerParts) {
+            return null;
+        }
+
+        const scheme = headerParts[1];
+        if (scheme.toLowerCase() !== 'hawk') {
+            return null;
+        }
+
+        const attributesString = headerParts[2];
+        if (!attributesString) {
+            return null;
+        }
+
+        const attributes = {};
+        const verify = attributesString.replace(/(\w+)="([^"\\]*)"\s*(?:,\s*|$)/g, ($0, $1, $2) => {
+
+            // Check valid attribute names
+
+            if (keys.indexOf($1) === -1) {
+                return;
+            }
+
+            // Allowed attribute value characters: !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9
+
+            if ($2.match(/^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~]+$/) === null) {
+                return;
+            }
+
+            // Check for duplicates
+
+            if (attributes.hasOwnProperty($1)) {
+                return;
+            }
+
+            attributes[$1] = $2;
+            return '';
+        });
+
+        if (verify !== '') {
+            return null;
+        }
+
+        return attributes;
+    },
+
+    randomString: function (size) {
+
+        const randomSource = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+        const len = randomSource.length;
+
+        const result = [];
+        for (let i = 0; i < size; ++i) {
+            result[i] = randomSource[Math.floor(Math.random() * len)];
+        }
+
+        return result.join('');
+    },
+
+    //          1                        2             3      4
+    uriRegex: /^([^:]+)\:\/\/(?:[^@/]*@)?([^\/:]+)(?:\:(\d+))?([^#]*)(?:#.*)?$/,       // scheme://credentials@host:port/resource#fragment
+    parseUri: function (input) {
+
+        const parts = input.match(hawk.utils.uriRegex);
+        if (!parts) {
+            return { host: '', port: '', resource: '' };
+        }
+
+        const scheme = parts[1].toLowerCase();
+        const uri = {
+            host: parts[2],
+            port: parts[3] || (scheme === 'http' ? '80' : (scheme === 'https' ? '443' : '')),
+            resource: parts[4]
+        };
+
+        return uri;
+    },
+
+    base64urlEncode: function (value) {
+
+        const wordArray = CryptoJS.enc.Utf8.parse(value);
+        const encoded = CryptoJS.enc.Base64.stringify(wordArray);
+        return encoded.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
+    }
+};
+
+
+// $lab:coverage:off$
+/* eslint-disable */
+
+// Based on: Crypto-JS v3.1.2
+// Copyright (c) 2009-2013, Jeff Mott. All rights reserved.
+// http://code.google.com/p/crypto-js/
+// http://code.google.com/p/crypto-js/wiki/License
+
+var CryptoJS = CryptoJS || function (h, r) { var k = {}, l = k.lib = {}, n = function () { }, f = l.Base = { extend: function (a) { n.prototype = this; var b = new n; a && b.mixIn(a); b.hasOwnProperty("init") || (b.init = function () { b.$super.init.apply(this, arguments) }); b.init.prototype = b; b.$super = this; return b }, create: function () { var a = this.extend(); a.init.apply(a, arguments); return a }, init: function () { }, mixIn: function (a) { for (let b in a) a.hasOwnProperty(b) && (this[b] = a[b]); a.hasOwnProperty("toString") && (this.toString = a.toString) }, clone: function () { return this.init.prototype.extend(this) } }, j = l.WordArray = f.extend({ init: function (a, b) { a = this.words = a || []; this.sigBytes = b != r ? b : 4 * a.length }, toString: function (a) { return (a || s).stringify(this) }, concat: function (a) { var b = this.words, d = a.words, c = this.sigBytes; a = a.sigBytes; this.clamp(); if (c % 4) for (let e = 0; e < a; e++) b[c + e >>> 2] |= (d[e >>> 2] >>> 24 - 8 * (e % 4) & 255) << 24 - 8 * ((c + e) % 4); else if (65535 < d.length) for (let e = 0; e < a; e += 4) b[c + e >>> 2] = d[e >>> 2]; else b.push.apply(b, d); this.sigBytes += a; return this }, clamp: function () { var a = this.words, b = this.sigBytes; a[b >>> 2] &= 4294967295 << 32 - 8 * (b % 4); a.length = h.ceil(b / 4) }, clone: function () { var a = f.clone.call(this); a.words = this.words.slice(0); return a }, random: function (a) { for (let b = [], d = 0; d < a; d += 4) b.push(4294967296 * h.random() | 0); return new j.init(b, a) } }), m = k.enc = {}, s = m.Hex = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) { var e = b[c >>> 2] >>> 24 - 8 * (c % 4) & 255; d.push((e >>> 4).toString(16)); d.push((e & 15).toString(16)) } return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c += 2) d[c >>> 3] |= parseInt(a.substr(c, 2), 16) << 24 - 4 * (c % 8); return new j.init(d, b / 2) } }, p = m.Latin1 = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) d.push(String.fromCharCode(b[c >>> 2] >>> 24 - 8 * (c % 4) & 255)); return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c++) d[c >>> 2] |= (a.charCodeAt(c) & 255) << 24 - 8 * (c % 4); return new j.init(d, b) } }, t = m.Utf8 = { stringify: function (a) { try { return decodeURIComponent(escape(p.stringify(a))) } catch (b) { throw Error("Malformed UTF-8 data"); } }, parse: function (a) { return p.parse(unescape(encodeURIComponent(a))) } }, q = l.BufferedBlockAlgorithm = f.extend({ reset: function () { this._data = new j.init; this._nDataBytes = 0 }, _append: function (a) { "string" == typeof a && (a = t.parse(a)); this._data.concat(a); this._nDataBytes += a.sigBytes }, _process: function (a) { var b = this._data, d = b.words, c = b.sigBytes, e = this.blockSize, f = c / (4 * e), f = a ? h.ceil(f) : h.max((f | 0) - this._minBufferSize, 0); a = f * e; c = h.min(4 * a, c); if (a) { for (var g = 0; g < a; g += e) this._doProcessBlock(d, g); g = d.splice(0, a); b.sigBytes -= c } return new j.init(g, c) }, clone: function () { var a = f.clone.call(this); a._data = this._data.clone(); return a }, _minBufferSize: 0 }); l.Hasher = q.extend({ cfg: f.extend(), init: function (a) { this.cfg = this.cfg.extend(a); this.reset() }, reset: function () { q.reset.call(this); this._doReset() }, update: function (a) { this._append(a); this._process(); return this }, finalize: function (a) { a && this._append(a); return this._doFinalize() }, blockSize: 16, _createHelper: function (a) { return function (b, d) { return (new a.init(d)).finalize(b) } }, _createHmacHelper: function (a) { return function (b, d) { return (new u.HMAC.init(a, d)).finalize(b) } } }); var u = k.algo = {}; return k }(Math);
+(() => { var k = CryptoJS, b = k.lib, m = b.WordArray, l = b.Hasher, d = [], b = k.algo.SHA1 = l.extend({ _doReset: function () { this._hash = new m.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]) }, _doProcessBlock: function (n, p) { for (var a = this._hash.words, e = a[0], f = a[1], h = a[2], j = a[3], b = a[4], c = 0; 80 > c; c++) { if (16 > c) d[c] = n[p + c] | 0; else { var g = d[c - 3] ^ d[c - 8] ^ d[c - 14] ^ d[c - 16]; d[c] = g << 1 | g >>> 31 } g = (e << 5 | e >>> 27) + b + d[c]; g = 20 > c ? g + ((f & h | ~f & j) + 1518500249) : 40 > c ? g + ((f ^ h ^ j) + 1859775393) : 60 > c ? g + ((f & h | f & j | h & j) - 1894007588) : g + ((f ^ h ^ j) - 899497514); b = j; j = h; h = f << 30 | f >>> 2; f = e; e = g } a[0] = a[0] + e | 0; a[1] = a[1] + f | 0; a[2] = a[2] + h | 0; a[3] = a[3] + j | 0; a[4] = a[4] + b | 0 }, _doFinalize: function () { var b = this._data, d = b.words, a = 8 * this._nDataBytes, e = 8 * b.sigBytes; d[e >>> 5] |= 128 << 24 - e % 32; d[(e + 64 >>> 9 << 4) + 14] = Math.floor(a / 4294967296); d[(e + 64 >>> 9 << 4) + 15] = a; b.sigBytes = 4 * d.length; this._process(); return this._hash }, clone: function () { var b = l.clone.call(this); b._hash = this._hash.clone(); return b } }); k.SHA1 = l._createHelper(b); k.HmacSHA1 = l._createHmacHelper(b) })();
+(function (k) { for (var g = CryptoJS, h = g.lib, v = h.WordArray, j = h.Hasher, h = g.algo, s = [], t = [], u = function (q) { return 4294967296 * (q - (q | 0)) | 0 }, l = 2, b = 0; 64 > b;) { var d; a: { d = l; for (var w = k.sqrt(d), r = 2; r <= w; r++) if (!(d % r)) { d = !1; break a } d = !0 } d && (8 > b && (s[b] = u(k.pow(l, 0.5))), t[b] = u(k.pow(l, 1 / 3)), b++); l++ } var n = [], h = h.SHA256 = j.extend({ _doReset: function () { this._hash = new v.init(s.slice(0)) }, _doProcessBlock: function (q, h) { for (var a = this._hash.words, c = a[0], d = a[1], b = a[2], k = a[3], f = a[4], g = a[5], j = a[6], l = a[7], e = 0; 64 > e; e++) { if (16 > e) n[e] = q[h + e] | 0; else { var m = n[e - 15], p = n[e - 2]; n[e] = ((m << 25 | m >>> 7) ^ (m << 14 | m >>> 18) ^ m >>> 3) + n[e - 7] + ((p << 15 | p >>> 17) ^ (p << 13 | p >>> 19) ^ p >>> 10) + n[e - 16] } m = l + ((f << 26 | f >>> 6) ^ (f << 21 | f >>> 11) ^ (f << 7 | f >>> 25)) + (f & g ^ ~f & j) + t[e] + n[e]; p = ((c << 30 | c >>> 2) ^ (c << 19 | c >>> 13) ^ (c << 10 | c >>> 22)) + (c & d ^ c & b ^ d & b); l = j; j = g; g = f; f = k + m | 0; k = b; b = d; d = c; c = m + p | 0 } a[0] = a[0] + c | 0; a[1] = a[1] + d | 0; a[2] = a[2] + b | 0; a[3] = a[3] + k | 0; a[4] = a[4] + f | 0; a[5] = a[5] + g | 0; a[6] = a[6] + j | 0; a[7] = a[7] + l | 0 }, _doFinalize: function () { var d = this._data, b = d.words, a = 8 * this._nDataBytes, c = 8 * d.sigBytes; b[c >>> 5] |= 128 << 24 - c % 32; b[(c + 64 >>> 9 << 4) + 14] = k.floor(a / 4294967296); b[(c + 64 >>> 9 << 4) + 15] = a; d.sigBytes = 4 * b.length; this._process(); return this._hash }, clone: function () { var b = j.clone.call(this); b._hash = this._hash.clone(); return b } }); g.SHA256 = j._createHelper(h); g.HmacSHA256 = j._createHmacHelper(h) })(Math);
+(() => { var c = CryptoJS, k = c.enc.Utf8; c.algo.HMAC = c.lib.Base.extend({ init: function (a, b) { a = this._hasher = new a.init; "string" == typeof b && (b = k.parse(b)); var c = a.blockSize, e = 4 * c; b.sigBytes > e && (b = a.finalize(b)); b.clamp(); for (var f = this._oKey = b.clone(), g = this._iKey = b.clone(), h = f.words, j = g.words, d = 0; d < c; d++) h[d] ^= 1549556828, j[d] ^= 909522486; f.sigBytes = g.sigBytes = e; this.reset() }, reset: function () { var a = this._hasher; a.reset(); a.update(this._iKey) }, update: function (a) { this._hasher.update(a); return this }, finalize: function (a) { var b = this._hasher; a = b.finalize(a); b.reset(); return b.finalize(this._oKey.clone().concat(a)) } }) })();
+(() => { var h = CryptoJS, j = h.lib.WordArray; h.enc.Base64 = { stringify: function (b) { var e = b.words, f = b.sigBytes, c = this._map; b.clamp(); b = []; for (var a = 0; a < f; a += 3) for (var d = (e[a >>> 2] >>> 24 - 8 * (a % 4) & 255) << 16 | (e[a + 1 >>> 2] >>> 24 - 8 * ((a + 1) % 4) & 255) << 8 | e[a + 2 >>> 2] >>> 24 - 8 * ((a + 2) % 4) & 255, g = 0; 4 > g && a + 0.75 * g < f; g++) b.push(c.charAt(d >>> 6 * (3 - g) & 63)); if (e = c.charAt(64)) for (; b.length % 4;) b.push(e); return b.join("") }, parse: function (b) { var e = b.length, f = this._map, c = f.charAt(64); c && (c = b.indexOf(c), -1 != c && (e = c)); for (var c = [], a = 0, d = 0; d < e; d++) if (d % 4) { var g = f.indexOf(b.charAt(d - 1)) << 2 * (d % 4), h = f.indexOf(b.charAt(d)) >>> 6 - 2 * (d % 4); c[a >>> 2] |= (g | h) << 24 - 8 * (a % 4); a++ } return j.create(c, a) }, _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=" } })();
+
+
+hawk.crypto.utils = CryptoJS;
+
+// Export if used as a module
+
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = hawk;
+}
+
+/* eslint-enable */
+// $lab:coverage:on$
diff --git a/node_modules/hawk/lib/client.js b/node_modules/hawk/lib/client.js
new file mode 100755
index 0000000..eecc2e3
--- /dev/null
+++ b/node_modules/hawk/lib/client.js
@@ -0,0 +1,394 @@
+'use strict';
+
+// Load modules
+
+const Url = require('url');
+const Hoek = require('hoek');
+const Cryptiles = require('cryptiles');
+const Crypto = require('./crypto');
+const Utils = require('./utils');
+
+
+// Declare internals
+
+const internals = {};
+
+
+// Generate an Authorization header for a given request
+
+/*
+    uri: 'http://example.com/resource?a=b' or object from Url.parse()
+    method: HTTP verb (e.g. 'GET', 'POST')
+    options: {
+
+        // Required
+
+        credentials: {
+            id: 'dh37fgj492je',
+            key: 'aoijedoaijsdlaksjdl',
+            algorithm: 'sha256'                                 // 'sha1', 'sha256'
+        },
+
+        // Optional
+
+        ext: 'application-specific',                        // Application specific data sent via the ext attribute
+        timestamp: Date.now() / 1000,                       // A pre-calculated timestamp in seconds
+        nonce: '2334f34f',                                  // A pre-generated nonce
+        localtimeOffsetMsec: 400,                           // Time offset to sync with server time (ignored if timestamp provided)
+        payload: '{"some":"payload"}',                      // UTF-8 encoded string for body hash generation (ignored if hash provided)
+        contentType: 'application/json',                    // Payload content-type (ignored if hash provided)
+        hash: 'U4MKKSmiVxk37JCCrAVIjV=',                    // Pre-calculated payload hash
+        app: '24s23423f34dx',                               // Oz application id
+        dlg: '234sz34tww3sd'                                // Oz delegated-by application id
+    }
+*/
+
+exports.header = function (uri, method, options) {
+
+    const result = {
+        field: '',
+        artifacts: {}
+    };
+
+    // Validate inputs
+
+    if (!uri || (typeof uri !== 'string' && typeof uri !== 'object') ||
+        !method || typeof method !== 'string' ||
+        !options || typeof options !== 'object') {
+
+        result.err = 'Invalid argument type';
+        return result;
+    }
+
+    // Application time
+
+    const timestamp = options.timestamp || Utils.nowSecs(options.localtimeOffsetMsec);
+
+    // Validate credentials
+
+    const credentials = options.credentials;
+    if (!credentials ||
+        !credentials.id ||
+        !credentials.key ||
+        !credentials.algorithm) {
+
+        result.err = 'Invalid credential object';
+        return result;
+    }
+
+    if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+        result.err = 'Unknown algorithm';
+        return result;
+    }
+
+    // Parse URI
+
+    if (typeof uri === 'string') {
+        uri = Url.parse(uri);
+    }
+
+    // Calculate signature
+
+    const artifacts = {
+        ts: timestamp,
+        nonce: options.nonce || Cryptiles.randomString(6),
+        method,
+        resource: uri.pathname + (uri.search || ''),                            // Maintain trailing '?'
+        host: uri.hostname,
+        port: uri.port || (uri.protocol === 'http:' ? 80 : 443),
+        hash: options.hash,
+        ext: options.ext,
+        app: options.app,
+        dlg: options.dlg
+    };
+
+    result.artifacts = artifacts;
+
+    // Calculate payload hash
+
+    if (!artifacts.hash &&
+        (options.payload || options.payload === '')) {
+
+        artifacts.hash = Crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
+    }
+
+    const mac = Crypto.calculateMac('header', credentials, artifacts);
+
+    // Construct header
+
+    const hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== '';       // Other falsey values allowed
+    let header = 'Hawk id="' + credentials.id +
+                 '", ts="' + artifacts.ts +
+                 '", nonce="' + artifacts.nonce +
+                 (artifacts.hash ? '", hash="' + artifacts.hash : '') +
+                 (hasExt ? '", ext="' + Hoek.escapeHeaderAttribute(artifacts.ext) : '') +
+                 '", mac="' + mac + '"';
+
+    if (artifacts.app) {
+        header = header + ', app="' + artifacts.app +
+                  (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"';
+    }
+
+    result.field = header;
+
+    return result;
+};
+
+
+// Validate server response
+
+/*
+    res:        node's response object
+    artifacts:  object received from header().artifacts
+    options: {
+        payload:    optional payload received
+        required:   specifies if a Server-Authorization header is required. Defaults to 'false'
+    }
+*/
+
+exports.authenticate = function (res, credentials, artifacts, options, callback) {
+
+    artifacts = Hoek.clone(artifacts);
+    options = options || {};
+
+    let wwwAttributes = null;
+    let serverAuthAttributes = null;
+
+    const finalize = function (err) {
+
+        if (callback) {
+            const headers = {
+                'www-authenticate': wwwAttributes,
+                'server-authorization': serverAuthAttributes
+            };
+
+            return callback(err, headers);
+        }
+
+        return !err;
+    };
+
+    if (res.headers['www-authenticate']) {
+
+        // Parse HTTP WWW-Authenticate header
+
+        wwwAttributes = Utils.parseAuthorizationHeader(res.headers['www-authenticate'], ['ts', 'tsm', 'error']);
+        if (wwwAttributes instanceof Error) {
+            wwwAttributes = null;
+            return finalize(new Error('Invalid WWW-Authenticate header'));
+        }
+
+        // Validate server timestamp (not used to update clock since it is done via the SNPT client)
+
+        if (wwwAttributes.ts) {
+            const tsm = Crypto.calculateTsMac(wwwAttributes.ts, credentials);
+            if (tsm !== wwwAttributes.tsm) {
+                return finalize(new Error('Invalid server timestamp hash'));
+            }
+        }
+    }
+
+    // Parse HTTP Server-Authorization header
+
+    if (!res.headers['server-authorization'] &&
+        !options.required) {
+
+        return finalize();
+    }
+
+    serverAuthAttributes = Utils.parseAuthorizationHeader(res.headers['server-authorization'], ['mac', 'ext', 'hash']);
+    if (serverAuthAttributes instanceof Error) {
+        serverAuthAttributes = null;
+        return finalize(new Error('Invalid Server-Authorization header'));
+    }
+
+    artifacts.ext = serverAuthAttributes.ext;
+    artifacts.hash = serverAuthAttributes.hash;
+
+    const mac = Crypto.calculateMac('response', credentials, artifacts);
+    if (mac !== serverAuthAttributes.mac) {
+        return finalize(new Error('Bad response mac'));
+    }
+
+    if (!options.payload &&
+        options.payload !== '') {
+
+        return finalize();
+    }
+
+    if (!serverAuthAttributes.hash) {
+        return finalize(new Error('Missing response hash attribute'));
+    }
+
+    const calculatedHash = Crypto.calculatePayloadHash(options.payload, credentials.algorithm, res.headers['content-type']);
+    if (calculatedHash !== serverAuthAttributes.hash) {
+        return finalize(new Error('Bad response payload mac'));
+    }
+
+    return finalize();
+};
+
+
+// Generate a bewit value for a given URI
+
+/*
+    uri: 'http://example.com/resource?a=b' or object from Url.parse()
+    options: {
+
+        // Required
+
+        credentials: {
+            id: 'dh37fgj492je',
+            key: 'aoijedoaijsdlaksjdl',
+            algorithm: 'sha256'                             // 'sha1', 'sha256'
+        },
+        ttlSec: 60 * 60,                                    // TTL in seconds
+
+        // Optional
+
+        ext: 'application-specific',                        // Application specific data sent via the ext attribute
+        localtimeOffsetMsec: 400                            // Time offset to sync with server time
+    };
+*/
+
+exports.getBewit = function (uri, options) {
+
+    // Validate inputs
+
+    if (!uri ||
+        (typeof uri !== 'string' && typeof uri !== 'object') ||
+        !options ||
+        typeof options !== 'object' ||
+        !options.ttlSec) {
+
+        return '';
+    }
+
+    options.ext = (options.ext === null || options.ext === undefined ? '' : options.ext);       // Zero is valid value
+
+    // Application time
+
+    const now = Utils.now(options.localtimeOffsetMsec);
+
+    // Validate credentials
+
+    const credentials = options.credentials;
+    if (!credentials ||
+        !credentials.id ||
+        !credentials.key ||
+        !credentials.algorithm) {
+
+        return '';
+    }
+
+    if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+        return '';
+    }
+
+    // Parse URI
+
+    if (typeof uri === 'string') {
+        uri = Url.parse(uri);
+    }
+
+    // Calculate signature
+
+    const exp = Math.floor(now / 1000) + options.ttlSec;
+    const mac = Crypto.calculateMac('bewit', credentials, {
+        ts: exp,
+        nonce: '',
+        method: 'GET',
+        resource: uri.pathname + (uri.search || ''),                            // Maintain trailing '?'
+        host: uri.hostname,
+        port: uri.port || (uri.protocol === 'http:' ? 80 : 443),
+        ext: options.ext
+    });
+
+    // Construct bewit: id\exp\mac\ext
+
+    const bewit = credentials.id + '\\' + exp + '\\' + mac + '\\' + options.ext;
+    return Hoek.base64urlEncode(bewit);
+};
+
+
+// Generate an authorization string for a message
+
+/*
+    host: 'example.com',
+    port: 8000,
+    message: '{"some":"payload"}',                          // UTF-8 encoded string for body hash generation
+    options: {
+
+        // Required
+
+        credentials: {
+            id: 'dh37fgj492je',
+            key: 'aoijedoaijsdlaksjdl',
+            algorithm: 'sha256'                             // 'sha1', 'sha256'
+        },
+
+        // Optional
+
+        timestamp: Date.now() / 1000,                       // A pre-calculated timestamp in seconds
+        nonce: '2334f34f',                                  // A pre-generated nonce
+        localtimeOffsetMsec: 400,                           // Time offset to sync with server time (ignored if timestamp provided)
+    }
+*/
+
+exports.message = function (host, port, message, options) {
+
+    // Validate inputs
+
+    if (!host || typeof host !== 'string' ||
+        !port || typeof port !== 'number' ||
+        message === null || message === undefined || typeof message !== 'string' ||
+        !options || typeof options !== 'object') {
+
+        return null;
+    }
+
+    // Application time
+
+    const timestamp = options.timestamp || Utils.nowSecs(options.localtimeOffsetMsec);
+
+    // Validate credentials
+
+    const credentials = options.credentials;
+    if (!credentials ||
+        !credentials.id ||
+        !credentials.key ||
+        !credentials.algorithm) {
+
+        // Invalid credential object
+        return null;
+    }
+
+    if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+        return null;
+    }
+
+    // Calculate signature
+
+    const artifacts = {
+        ts: timestamp,
+        nonce: options.nonce || Cryptiles.randomString(6),
+        host,
+        port,
+        hash: Crypto.calculatePayloadHash(message, credentials.algorithm)
+    };
+
+    // Construct authorization
+
+    const result = {
+        id: credentials.id,
+        ts: artifacts.ts,
+        nonce: artifacts.nonce,
+        hash: artifacts.hash,
+        mac: Crypto.calculateMac('message', credentials, artifacts)
+    };
+
+    return result;
+};
+
+
+
diff --git a/node_modules/hawk/lib/crypto.js b/node_modules/hawk/lib/crypto.js
new file mode 100755
index 0000000..bfa4586
--- /dev/null
+++ b/node_modules/hawk/lib/crypto.js
@@ -0,0 +1,128 @@
+'use strict';
+
+// Load modules
+
+const Crypto = require('crypto');
+const Url = require('url');
+const Utils = require('./utils');
+
+
+// Declare internals
+
+const internals = {};
+
+
+// MAC normalization format version
+
+exports.headerVersion = '1';                        // Prevent comparison of mac values generated with different normalized string formats
+
+
+// Supported HMAC algorithms
+
+exports.algorithms = ['sha1', 'sha256'];
+
+
+// Calculate the request MAC
+
+/*
+    type: 'header',                                 // 'header', 'bewit', 'response'
+    credentials: {
+        key: 'aoijedoaijsdlaksjdl',
+        algorithm: 'sha256'                         // 'sha1', 'sha256'
+    },
+    options: {
+        method: 'GET',
+        resource: '/resource?a=1&b=2',
+        host: 'example.com',
+        port: 8080,
+        ts: 1357718381034,
+        nonce: 'd3d345f',
+        hash: 'U4MKKSmiVxk37JCCrAVIjV/OhB3y+NdwoCr6RShbVkE=',
+        ext: 'app-specific-data',
+        app: 'hf48hd83qwkj',                        // Application id (Oz)
+        dlg: 'd8djwekds9cj'                         // Delegated by application id (Oz), requires options.app
+    }
+*/
+
+exports.calculateMac = function (type, credentials, options) {
+
+    const normalized = exports.generateNormalizedString(type, options);
+
+    const hmac = Crypto.createHmac(credentials.algorithm, credentials.key).update(normalized);
+    const digest = hmac.digest('base64');
+    return digest;
+};
+
+
+exports.generateNormalizedString = function (type, options) {
+
+    let resource = options.resource || '';
+    if (resource &&
+        resource[0] !== '/') {
+
+        const url = Url.parse(resource, false);
+        resource = url.path;                        // Includes query
+    }
+
+    let normalized = 'hawk.' + exports.headerVersion + '.' + type + '\n' +
+                     options.ts + '\n' +
+                     options.nonce + '\n' +
+                     (options.method || '').toUpperCase() + '\n' +
+                     resource + '\n' +
+                     options.host.toLowerCase() + '\n' +
+                     options.port + '\n' +
+                     (options.hash || '') + '\n';
+
+    if (options.ext) {
+        normalized = normalized + options.ext.replace('\\', '\\\\').replace('\n', '\\n');
+    }
+
+    normalized = normalized + '\n';
+
+    if (options.app) {
+        normalized = normalized + options.app + '\n' +
+                                  (options.dlg || '') + '\n';
+    }
+
+    return normalized;
+};
+
+
+exports.calculatePayloadHash = function (payload, algorithm, contentType) {
+
+    const hash = exports.initializePayloadHash(algorithm, contentType);
+    hash.update(payload || '');
+    return exports.finalizePayloadHash(hash);
+};
+
+
+exports.initializePayloadHash = function (algorithm, contentType) {
+
+    const hash = Crypto.createHash(algorithm);
+    hash.update('hawk.' + exports.headerVersion + '.payload\n');
+    hash.update(Utils.parseContentType(contentType) + '\n');
+    return hash;
+};
+
+
+exports.finalizePayloadHash = function (hash) {
+
+    hash.update('\n');
+    return hash.digest('base64');
+};
+
+
+exports.calculateTsMac = function (ts, credentials) {
+
+    const hmac = Crypto.createHmac(credentials.algorithm, credentials.key);
+    hmac.update('hawk.' + exports.headerVersion + '.ts\n' + ts + '\n');
+    return hmac.digest('base64');
+};
+
+
+exports.timestampMessage = function (credentials, localtimeOffsetMsec) {
+
+    const now = Utils.nowSecs(localtimeOffsetMsec);
+    const tsm = exports.calculateTsMac(now, credentials);
+    return { ts: now, tsm };
+};
diff --git a/node_modules/hawk/lib/index.js b/node_modules/hawk/lib/index.js
new file mode 100755
index 0000000..324d3f9
--- /dev/null
+++ b/node_modules/hawk/lib/index.js
@@ -0,0 +1,17 @@
+'use strict';
+
+// Export sub-modules
+
+exports.error = exports.Error = require('boom');
+exports.sntp = require('sntp');
+
+exports.server = require('./server');
+exports.client = require('./client');
+exports.crypto = require('./crypto');
+exports.utils = require('./utils');
+
+exports.uri = {
+    authenticate: exports.server.authenticateBewit,
+    getBewit: exports.client.getBewit
+};
+
diff --git a/node_modules/hawk/lib/server.js b/node_modules/hawk/lib/server.js
new file mode 100755
index 0000000..c5b02ae
--- /dev/null
+++ b/node_modules/hawk/lib/server.js
@@ -0,0 +1,550 @@
+'use strict';
+
+// Load modules
+
+const Boom = require('boom');
+const Hoek = require('hoek');
+const Cryptiles = require('cryptiles');
+const Crypto = require('./crypto');
+const Utils = require('./utils');
+
+
+// Declare internals
+
+const internals = {};
+
+
+// Hawk authentication
+
+/*
+   req:                 node's HTTP request object or an object as follows:
+
+                        const request = {
+                            method: 'GET',
+                            url: '/resource/4?a=1&b=2',
+                            host: 'example.com',
+                            port: 8080,
+                            authorization: 'Hawk id="dh37fgj492je", ts="1353832234", nonce="j4h3g2", ext="some-app-ext-data", mac="6R4rV5iE+NPoym+WwjeHzjAGXUtLNIxmo1vpMofpLAE="'
+                        };
+
+   credentialsFunc:     required function to lookup the set of Hawk credentials based on the provided credentials id.
+                        The credentials include the MAC key, MAC algorithm, and other attributes (such as username)
+                        needed by the application. This function is the equivalent of verifying the username and
+                        password in Basic authentication.
+
+                        const credentialsFunc = function (id, callback) {
+
+                            // Lookup credentials in database
+                            db.lookup(id, function (err, item) {
+
+                                if (err || !item) {
+                                    return callback(err);
+                                }
+
+                                const credentials = {
+                                    // Required
+                                    key: item.key,
+                                    algorithm: item.algorithm,
+                                    // Application specific
+                                    user: item.user
+                                };
+
+                                return callback(null, credentials);
+                            });
+                        };
+
+   options: {
+
+        hostHeaderName:        optional header field name, used to override the default 'Host' header when used
+                               behind a cache of a proxy. Apache2 changes the value of the 'Host' header while preserving
+                               the original (which is what the module must verify) in the 'x-forwarded-host' header field.
+                               Only used when passed a node Http.ServerRequest object.
+
+        nonceFunc:             optional nonce validation function. The function signature is function(key, nonce, ts, callback)
+                               where 'callback' must be called using the signature function(err).
+
+        timestampSkewSec:      optional number of seconds of permitted clock skew for incoming timestamps. Defaults to 60 seconds.
+                               Provides a +/- skew which means actual allowed window is double the number of seconds.
+
+        localtimeOffsetMsec:   optional local clock time offset express in a number of milliseconds (positive or negative).
+                               Defaults to 0.
+
+        payload:               optional payload for validation. The client calculates the hash value and includes it via the 'hash'
+                               header attribute. The server always ensures the value provided has been included in the request
+                               MAC. When this option is provided, it validates the hash value itself. Validation is done by calculating
+                               a hash value over the entire payload (assuming it has already be normalized to the same format and
+                               encoding used by the client to calculate the hash on request). If the payload is not available at the time
+                               of authentication, the authenticatePayload() method can be used by passing it the credentials and
+                               attributes.hash returned in the authenticate callback.
+
+        host:                  optional host name override. Only used when passed a node request object.
+        port:                  optional port override. Only used when passed a node request object.
+    }
+
+    callback: function (err, credentials, artifacts) { }
+ */
+
+exports.authenticate = function (req, credentialsFunc, options, callback) {
+
+    callback = Hoek.nextTick(callback);
+
+    // Default options
+
+    options.nonceFunc = options.nonceFunc || internals.nonceFunc;
+    options.timestampSkewSec = options.timestampSkewSec || 60;                                                  // 60 seconds
+
+    // Application time
+
+    const now = Utils.now(options.localtimeOffsetMsec);                           // Measure now before any other processing
+
+    // Convert node Http request object to a request configuration object
+
+    const request = Utils.parseRequest(req, options);
+    if (request instanceof Error) {
+        return callback(Boom.badRequest(request.message));
+    }
+
+    // Parse HTTP Authorization header
+
+    const attributes = Utils.parseAuthorizationHeader(request.authorization);
+    if (attributes instanceof Error) {
+        return callback(attributes);
+    }
+
+    // Construct artifacts container
+
+    const artifacts = {
+        method: request.method,
+        host: request.host,
+        port: request.port,
+        resource: request.url,
+        ts: attributes.ts,
+        nonce: attributes.nonce,
+        hash: attributes.hash,
+        ext: attributes.ext,
+        app: attributes.app,
+        dlg: attributes.dlg,
+        mac: attributes.mac,
+        id: attributes.id
+    };
+
+    // Verify required header attributes
+
+    if (!attributes.id ||
+        !attributes.ts ||
+        !attributes.nonce ||
+        !attributes.mac) {
+
+        return callback(Boom.badRequest('Missing attributes'), null, artifacts);
+    }
+
+    // Fetch Hawk credentials
+
+    credentialsFunc(attributes.id, (err, credentials) => {
+
+        if (err) {
+            return callback(err, credentials || null, artifacts);
+        }
+
+        if (!credentials) {
+            return callback(Utils.unauthorized('Unknown credentials'), null, artifacts);
+        }
+
+        if (!credentials.key ||
+            !credentials.algorithm) {
+
+            return callback(Boom.internal('Invalid credentials'), credentials, artifacts);
+        }
+
+        if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return callback(Boom.internal('Unknown algorithm'), credentials, artifacts);
+        }
+
+        // Calculate MAC
+
+        const mac = Crypto.calculateMac('header', credentials, artifacts);
+        if (!Cryptiles.fixedTimeComparison(mac, attributes.mac)) {
+            return callback(Utils.unauthorized('Bad mac'), credentials, artifacts);
+        }
+
+        // Check payload hash
+
+        if (options.payload ||
+            options.payload === '') {
+
+            if (!attributes.hash) {
+                return callback(Utils.unauthorized('Missing required payload hash'), credentials, artifacts);
+            }
+
+            const hash = Crypto.calculatePayloadHash(options.payload, credentials.algorithm, request.contentType);
+            if (!Cryptiles.fixedTimeComparison(hash, attributes.hash)) {
+                return callback(Utils.unauthorized('Bad payload hash'), credentials, artifacts);
+            }
+        }
+
+        // Check nonce
+
+        options.nonceFunc(credentials.key, attributes.nonce, attributes.ts, (err) => {
+
+            if (err) {
+                return callback(Utils.unauthorized('Invalid nonce'), credentials, artifacts);
+            }
+
+            // Check timestamp staleness
+
+            if (Math.abs((attributes.ts * 1000) - now) > (options.timestampSkewSec * 1000)) {
+                const tsm = Crypto.timestampMessage(credentials, options.localtimeOffsetMsec);
+                return callback(Utils.unauthorized('Stale timestamp', tsm), credentials, artifacts);
+            }
+
+            // Successful authentication
+
+            return callback(null, credentials, artifacts);
+        });
+    });
+};
+
+
+// Authenticate payload hash - used when payload cannot be provided during authenticate()
+
+/*
+    payload:        raw request payload
+    credentials:    from authenticate callback
+    artifacts:      from authenticate callback
+    contentType:    req.headers['content-type']
+*/
+
+exports.authenticatePayload = function (payload, credentials, artifacts, contentType) {
+
+    const calculatedHash = Crypto.calculatePayloadHash(payload, credentials.algorithm, contentType);
+    return Cryptiles.fixedTimeComparison(calculatedHash, artifacts.hash);
+};
+
+
+// Authenticate payload hash - used when payload cannot be provided during authenticate()
+
+/*
+    calculatedHash: the payload hash calculated using Crypto.calculatePayloadHash()
+    artifacts:      from authenticate callback
+*/
+
+exports.authenticatePayloadHash = function (calculatedHash, artifacts) {
+
+    return Cryptiles.fixedTimeComparison(calculatedHash, artifacts.hash);
+};
+
+
+// Generate a Server-Authorization header for a given response
+
+/*
+    credentials: {},                                        // Object received from authenticate()
+    artifacts: {}                                           // Object received from authenticate(); 'mac', 'hash', and 'ext' - ignored
+    options: {
+        ext: 'application-specific',                        // Application specific data sent via the ext attribute
+        payload: '{"some":"payload"}',                      // UTF-8 encoded string for body hash generation (ignored if hash provided)
+        contentType: 'application/json',                    // Payload content-type (ignored if hash provided)
+        hash: 'U4MKKSmiVxk37JCCrAVIjV='                     // Pre-calculated payload hash
+    }
+*/
+
+exports.header = function (credentials, artifacts, options) {
+
+    // Prepare inputs
+
+    options = options || {};
+
+    if (!artifacts ||
+        typeof artifacts !== 'object' ||
+        typeof options !== 'object') {
+
+        return '';
+    }
+
+    artifacts = Hoek.clone(artifacts);
+    delete artifacts.mac;
+    artifacts.hash = options.hash;
+    artifacts.ext = options.ext;
+
+    // Validate credentials
+
+    if (!credentials ||
+        !credentials.key ||
+        !credentials.algorithm) {
+
+        // Invalid credential object
+        return '';
+    }
+
+    if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+        return '';
+    }
+
+    // Calculate payload hash
+
+    if (!artifacts.hash &&
+        (options.payload || options.payload === '')) {
+
+        artifacts.hash = Crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
+    }
+
+    const mac = Crypto.calculateMac('response', credentials, artifacts);
+
+    // Construct header
+
+    let header = 'Hawk mac="' + mac + '"' +
+                 (artifacts.hash ? ', hash="' + artifacts.hash + '"' : '');
+
+    if (artifacts.ext !== null &&
+        artifacts.ext !== undefined &&
+        artifacts.ext !== '') {                       // Other falsey values allowed
+
+        header = header + ', ext="' + Hoek.escapeHeaderAttribute(artifacts.ext) + '"';
+    }
+
+    return header;
+};
+
+
+/*
+ * Arguments and options are the same as authenticate() with the exception that the only supported options are:
+ * 'hostHeaderName', 'localtimeOffsetMsec', 'host', 'port'
+ */
+
+
+//                       1     2             3           4
+internals.bewitRegex = /^(\/.*)([\?&])bewit\=([^&$]*)(?:&(.+))?$/;
+
+
+exports.authenticateBewit = function (req, credentialsFunc, options, callback) {
+
+    callback = Hoek.nextTick(callback);
+
+    // Application time
+
+    const now = Utils.now(options.localtimeOffsetMsec);
+
+    // Convert node Http request object to a request configuration object
+
+    const request = Utils.parseRequest(req, options);
+    if (request instanceof Error) {
+        return callback(Boom.badRequest(request.message));
+    }
+
+    // Extract bewit
+
+    if (request.url.length > Utils.limits.maxMatchLength) {
+        return callback(Boom.badRequest('Resource path exceeds max length'));
+    }
+
+    const resource = request.url.match(internals.bewitRegex);
+    if (!resource) {
+        return callback(Utils.unauthorized());
+    }
+
+    // Bewit not empty
+
+    if (!resource[3]) {
+        return callback(Utils.unauthorized('Empty bewit'));
+    }
+
+    // Verify method is GET
+
+    if (request.method !== 'GET' &&
+        request.method !== 'HEAD') {
+
+        return callback(Utils.unauthorized('Invalid method'));
+    }
+
+    // No other authentication
+
+    if (request.authorization) {
+        return callback(Boom.badRequest('Multiple authentications'));
+    }
+
+    // Parse bewit
+
+    const bewitString = Hoek.base64urlDecode(resource[3]);
+    if (bewitString instanceof Error) {
+        return callback(Boom.badRequest('Invalid bewit encoding'));
+    }
+
+    // Bewit format: id\exp\mac\ext ('\' is used because it is a reserved header attribute character)
+
+    const bewitParts = bewitString.split('\\');
+    if (bewitParts.length !== 4) {
+        return callback(Boom.badRequest('Invalid bewit structure'));
+    }
+
+    const bewit = {
+        id: bewitParts[0],
+        exp: parseInt(bewitParts[1], 10),
+        mac: bewitParts[2],
+        ext: bewitParts[3] || ''
+    };
+
+    if (!bewit.id ||
+        !bewit.exp ||
+        !bewit.mac) {
+
+        return callback(Boom.badRequest('Missing bewit attributes'));
+    }
+
+    // Construct URL without bewit
+
+    let url = resource[1];
+    if (resource[4]) {
+        url = url + resource[2] + resource[4];
+    }
+
+    // Check expiration
+
+    if (bewit.exp * 1000 <= now) {
+        return callback(Utils.unauthorized('Access expired'), null, bewit);
+    }
+
+    // Fetch Hawk credentials
+
+    credentialsFunc(bewit.id, (err, credentials) => {
+
+        if (err) {
+            return callback(err, credentials || null, bewit.ext);
+        }
+
+        if (!credentials) {
+            return callback(Utils.unauthorized('Unknown credentials'), null, bewit);
+        }
+
+        if (!credentials.key ||
+            !credentials.algorithm) {
+
+            return callback(Boom.internal('Invalid credentials'), credentials, bewit);
+        }
+
+        if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return callback(Boom.internal('Unknown algorithm'), credentials, bewit);
+        }
+
+        // Calculate MAC
+
+        const mac = Crypto.calculateMac('bewit', credentials, {
+            ts: bewit.exp,
+            nonce: '',
+            method: 'GET',
+            resource: url,
+            host: request.host,
+            port: request.port,
+            ext: bewit.ext
+        });
+
+        if (!Cryptiles.fixedTimeComparison(mac, bewit.mac)) {
+            return callback(Utils.unauthorized('Bad mac'), credentials, bewit);
+        }
+
+        // Successful authentication
+
+        return callback(null, credentials, bewit);
+    });
+};
+
+
+/*
+ *  options are the same as authenticate() with the exception that the only supported options are:
+ * 'nonceFunc', 'timestampSkewSec', 'localtimeOffsetMsec'
+ */
+
+exports.authenticateMessage = function (host, port, message, authorization, credentialsFunc, options, callback) {
+
+    callback = Hoek.nextTick(callback);
+
+    // Default options
+
+    options.nonceFunc = options.nonceFunc || internals.nonceFunc;
+    options.timestampSkewSec = options.timestampSkewSec || 60;                                                  // 60 seconds
+
+    // Application time
+
+    const now = Utils.now(options.localtimeOffsetMsec);                       // Measure now before any other processing
+
+    // Validate authorization
+
+    if (!authorization.id ||
+        !authorization.ts ||
+        !authorization.nonce ||
+        !authorization.hash ||
+        !authorization.mac) {
+
+        return callback(Boom.badRequest('Invalid authorization'));
+    }
+
+    // Fetch Hawk credentials
+
+    credentialsFunc(authorization.id, (err, credentials) => {
+
+        if (err) {
+            return callback(err, credentials || null);
+        }
+
+        if (!credentials) {
+            return callback(Utils.unauthorized('Unknown credentials'));
+        }
+
+        if (!credentials.key ||
+            !credentials.algorithm) {
+
+            return callback(Boom.internal('Invalid credentials'), credentials);
+        }
+
+        if (Crypto.algorithms.indexOf(credentials.algorithm) === -1) {
+            return callback(Boom.internal('Unknown algorithm'), credentials);
+        }
+
+        // Construct artifacts container
+
+        const artifacts = {
+            ts: authorization.ts,
+            nonce: authorization.nonce,
+            host,
+            port,
+            hash: authorization.hash
+        };
+
+        // Calculate MAC
+
+        const mac = Crypto.calculateMac('message', credentials, artifacts);
+        if (!Cryptiles.fixedTimeComparison(mac, authorization.mac)) {
+            return callback(Utils.unauthorized('Bad mac'), credentials);
+        }
+
+        // Check payload hash
+
+        const hash = Crypto.calculatePayloadHash(message, credentials.algorithm);
+        if (!Cryptiles.fixedTimeComparison(hash, authorization.hash)) {
+            return callback(Utils.unauthorized('Bad message hash'), credentials);
+        }
+
+        // Check nonce
+
+        options.nonceFunc(credentials.key, authorization.nonce, authorization.ts, (err) => {
+
+            if (err) {
+                return callback(Utils.unauthorized('Invalid nonce'), credentials);
+            }
+
+            // Check timestamp staleness
+
+            if (Math.abs((authorization.ts * 1000) - now) > (options.timestampSkewSec * 1000)) {
+                return callback(Utils.unauthorized('Stale timestamp'), credentials);
+            }
+
+            // Successful authentication
+
+            return callback(null, credentials);
+        });
+    });
+};
+
+
+internals.nonceFunc = function (key, nonce, ts, nonceCallback) {
+
+    return nonceCallback();         // No validation
+};
diff --git a/node_modules/hawk/lib/utils.js b/node_modules/hawk/lib/utils.js
new file mode 100755
index 0000000..ecb64d3
--- /dev/null
+++ b/node_modules/hawk/lib/utils.js
@@ -0,0 +1,186 @@
+'use strict';
+
+// Load modules
+
+const Sntp = require('sntp');
+const Boom = require('boom');
+
+
+// Declare internals
+
+const internals = {};
+
+
+exports.version = function () {
+
+    return require('../package.json').version;
+};
+
+
+exports.limits = {
+    maxMatchLength: 4096            // Limit the length of uris and headers to avoid a DoS attack on string matching
+};
+
+
+// Extract host and port from request
+
+//                                            $1                            $2
+internals.hostHeaderRegex = /^(?:(?:\r\n)?\s)*((?:[^:]+)|(?:\[[^\]]+\]))(?::(\d+))?(?:(?:\r\n)?\s)*$/;              // (IPv4, hostname)|(IPv6)
+
+
+exports.parseHost = function (req, hostHeaderName) {
+
+    hostHeaderName = (hostHeaderName ? hostHeaderName.toLowerCase() : 'host');
+    const hostHeader = req.headers[hostHeaderName];
+    if (!hostHeader) {
+        return null;
+    }
+
+    if (hostHeader.length > exports.limits.maxMatchLength) {
+        return null;
+    }
+
+    const hostParts = hostHeader.match(internals.hostHeaderRegex);
+    if (!hostParts) {
+        return null;
+    }
+
+    return {
+        name: hostParts[1],
+        port: (hostParts[2] ? hostParts[2] : (req.connection && req.connection.encrypted ? 443 : 80))
+    };
+};
+
+
+// Parse Content-Type header content
+
+exports.parseContentType = function (header) {
+
+    if (!header) {
+        return '';
+    }
+
+    return header.split(';')[0].trim().toLowerCase();
+};
+
+
+// Convert node's  to request configuration object
+
+exports.parseRequest = function (req, options) {
+
+    if (!req.headers) {
+        return req;
+    }
+
+    // Obtain host and port information
+
+    let host;
+    if (!options.host ||
+        !options.port) {
+
+        host = exports.parseHost(req, options.hostHeaderName);
+        if (!host) {
+            return new Error('Invalid Host header');
+        }
+    }
+
+    const request = {
+        method: req.method,
+        url: req.url,
+        host: options.host || host.name,
+        port: options.port || host.port,
+        authorization: req.headers.authorization,
+        contentType: req.headers['content-type'] || ''
+    };
+
+    return request;
+};
+
+
+exports.now = function (localtimeOffsetMsec) {
+
+    return Sntp.now() + (localtimeOffsetMsec || 0);
+};
+
+
+exports.nowSecs = function (localtimeOffsetMsec) {
+
+    return Math.floor(exports.now(localtimeOffsetMsec) / 1000);
+};
+
+
+internals.authHeaderRegex = /^(\w+)(?:\s+(.*))?$/;                                      // Header: scheme[ something]
+internals.attributeRegex = /^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~]+$/;   // !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9
+
+
+// Parse Hawk HTTP Authorization header
+
+exports.parseAuthorizationHeader = function (header, keys) {
+
+    keys = keys || ['id', 'ts', 'nonce', 'hash', 'ext', 'mac', 'app', 'dlg'];
+
+    if (!header) {
+        return Boom.unauthorized(null, 'Hawk');
+    }
+
+    if (header.length > exports.limits.maxMatchLength) {
+        return Boom.badRequest('Header length too long');
+    }
+
+    const headerParts = header.match(internals.authHeaderRegex);
+    if (!headerParts) {
+        return Boom.badRequest('Invalid header syntax');
+    }
+
+    const scheme = headerParts[1];
+    if (scheme.toLowerCase() !== 'hawk') {
+        return Boom.unauthorized(null, 'Hawk');
+    }
+
+    const attributesString = headerParts[2];
+    if (!attributesString) {
+        return Boom.badRequest('Invalid header syntax');
+    }
+
+    const attributes = {};
+    let errorMessage = '';
+    const verify = attributesString.replace(/(\w+)="([^"\\]*)"\s*(?:,\s*|$)/g, ($0, $1, $2) => {
+
+        // Check valid attribute names
+
+        if (keys.indexOf($1) === -1) {
+            errorMessage = 'Unknown attribute: ' + $1;
+            return;
+        }
+
+        // Allowed attribute value characters
+
+        if ($2.match(internals.attributeRegex) === null) {
+            errorMessage = 'Bad attribute value: ' + $1;
+            return;
+        }
+
+        // Check for duplicates
+
+        if (attributes.hasOwnProperty($1)) {
+            errorMessage = 'Duplicate attribute: ' + $1;
+            return;
+        }
+
+        attributes[$1] = $2;
+        return '';
+    });
+
+    if (verify !== '') {
+        return Boom.badRequest(errorMessage || 'Bad header format');
+    }
+
+    return attributes;
+};
+
+
+exports.unauthorized = function (message, attributes) {
+
+    return Boom.unauthorized(message || null, 'Hawk', attributes);
+};
+
diff --git a/node_modules/hawk/package.json b/node_modules/hawk/package.json
new file mode 100755
index 0000000..424ff42
--- /dev/null
+++ b/node_modules/hawk/package.json
@@ -0,0 +1,78 @@
+{
+  "_from": "hawk@~6.0.2",
+  "_id": "[email protected]",
+  "_inBundle": false,
+  "_integrity": "sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==",
+  "_location": "/hawk",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "hawk@~6.0.2",
+    "name": "hawk",
+    "escapedName": "hawk",
+    "rawSpec": "~6.0.2",
+    "saveSpec": null,
+    "fetchSpec": "~6.0.2"
+  },
+  "_requiredBy": [
+    "/request"
+  ],
+  "_resolved": "https://registry.npmjs.org/hawk/-/hawk-6.0.2.tgz",
+  "_shasum": "af4d914eb065f9b5ce4d9d11c1cb2126eecc3038",
+  "_spec": "hawk@~6.0.2",
+  "_where": "/Users/armanshah/Desktop/node-projects/shopping-list/node_modules/request",
+  "author": {
+    "name": "Eran Hammer",
+    "email": "[email protected]",
+    "url": "http://hueniverse.com"
+  },
+  "babel": {
+    "presets": [
+      "es2015"
+    ]
+  },
+  "browser": "dist/browser.js",
+  "bugs": {
+    "url": "https://github.com/hueniverse/hawk/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "boom": "4.x.x",
+    "cryptiles": "3.x.x",
+    "hoek": "4.x.x",
+    "sntp": "2.x.x"
+  },
+  "deprecated": false,
+  "description": "HTTP Hawk Authentication Scheme",
+  "devDependencies": {
+    "babel-cli": "^6.1.2",
+    "babel-preset-es2015": "^6.1.2",
+    "code": "4.x.x",
+    "lab": "14.x.x"
+  },
+  "engines": {
+    "node": ">=4.5.0"
+  },
+  "homepage": "https://github.com/hueniverse/hawk#readme",
+  "keywords": [
+    "http",
+    "authentication",
+    "scheme",
+    "hawk"
+  ],
+  "license": "BSD-3-Clause",
+  "main": "lib/index.js",
+  "name": "hawk",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/hueniverse/hawk.git"
+  },
+  "scripts": {
+    "build-client": "mkdir -p dist; babel lib/browser.js --out-file dist/browser.js",
+    "prepublish": "npm run-script build-client",
+    "test": "lab -a code -t 100 -L",
+    "test-cov-html": "lab -a code -r html -o coverage.html"
+  },
+  "version": "6.0.2"
+}