Added other dependencies for authentication, made minor adjustments to index.js, added templating for exams, will remove dependencie modules later, keep for now

9 files changed, 2301 insertions, 0 deletions

diff --git a/node_modules/express-session/HISTORY.md b/node_modules/express-session/HISTORY.md
new file mode 100644
index 0000000..8ec8885
--- /dev/null
+++ b/node_modules/express-session/HISTORY.md
@@ -0,0 +1,314 @@
+1.14.0 / 2016-07-01
+===================
+
+  * Correctly inherit from `EventEmitter` class in `Store` base class
+  * Fix issue where `Set-Cookie` `Expires` was not always updated
+  * Methods are no longer enumerable on `req.session` object
+  * deps: cookie@0.3.1
+    - Add `sameSite` option
+    - Improve error message when `encode` is not a function
+    - Improve error message when `expires` is not a `Date`
+    - perf: enable strict mode
+    - perf: use for loop in parse
+    - perf: use string concatination for serialization
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+  * deps: uid-safe@~2.1.1
+    - Use `random-bytes` for byte source
+    - deps: base64-url@1.2.2
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+1.13.0 / 2016-01-10
+===================
+
+  * Fix `rolling: true` to not set cookie when no session exists
+    - Better `saveUninitialized: false` + `rolling: true` behavior
+  * deps: crc@3.4.0
+
+1.12.1 / 2015-10-29
+===================
+
+  * deps: cookie@0.2.3
+    - Fix cookie `Max-Age` to never be a floating point number
+
+1.12.0 / 2015-10-25
+===================
+
+  * Support the value `'auto'` in the `cookie.secure` option
+  * deps: cookie@0.2.2
+    - Throw on invalid values provided to `serialize`
+  * deps: depd@~1.1.0
+    - Enable strict mode in more places
+    - Support web browser loading
+  * deps: on-headers@~1.0.1
+    - perf: enable strict mode
+
+1.11.3 / 2015-05-22
+===================
+
+  * deps: cookie@0.1.3
+    - Slight optimizations
+  * deps: crc@3.3.0
+
+1.11.2 / 2015-05-10
+===================
+
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: uid-safe@~2.0.0
+
+1.11.1 / 2015-04-08
+===================
+
+  * Fix mutating `options.secret` value
+
+1.11.0 / 2015-04-07
+===================
+
+  * Support an array in `secret` option for key rotation
+  * deps: depd@~1.0.1
+
+1.10.4 / 2015-03-15
+===================
+
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+1.10.3 / 2015-02-16
+===================
+
+  * deps: cookie-signature@1.0.6
+  * deps: uid-safe@1.1.0
+    - Use `crypto.randomBytes`, if available
+    - deps: base64-url@1.2.1
+
+1.10.2 / 2015-01-31
+===================
+
+  * deps: uid-safe@1.0.3
+    - Fix error branch that would throw
+    - deps: base64-url@1.2.0
+
+1.10.1 / 2015-01-08
+===================
+
+  * deps: uid-safe@1.0.2
+    - Remove dependency on `mz`
+
+1.10.0 / 2015-01-05
+===================
+
+  * Add `store.touch` interface for session stores
+  * Fix `MemoryStore` expiration with `resave: false`
+  * deps: debug@~2.1.1
+
+1.9.3 / 2014-12-02
+==================
+
+  * Fix error when `req.sessionID` contains a non-string value
+
+1.9.2 / 2014-11-22
+==================
+
+  * deps: crc@3.2.1
+    - Minor fixes
+
+1.9.1 / 2014-10-22
+==================
+
+  * Remove unnecessary empty write call
+    - Fixes Node.js 0.11.14 behavior change
+    - Helps work-around Node.js 0.10.1 zlib bug
+
+1.9.0 / 2014-09-16
+==================
+
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+
+1.8.2 / 2014-09-15
+==================
+
+  * Use `crc` instead of `buffer-crc32` for speed
+  * deps: depd@0.4.5
+
+1.8.1 / 2014-09-08
+==================
+
+  * Keep `req.session.save` non-enumerable
+  * Prevent session prototype methods from being overwritten
+
+1.8.0 / 2014-09-07
+==================
+
+  * Do not resave already-saved session at end of request
+  * deps: cookie-signature@1.0.5
+  * deps: debug@~2.0.0
+
+1.7.6 / 2014-08-18
+==================
+
+  * Fix exception on `res.end(null)` calls
+
+1.7.5 / 2014-08-10
+==================
+
+  * Fix parsing original URL
+  * deps: on-headers@~1.0.0
+  * deps: parseurl@~1.3.0
+
+1.7.4 / 2014-08-05
+==================
+
+  * Fix response end delay for non-chunked responses
+
+1.7.3 / 2014-08-05
+==================
+
+  * Fix `res.end` patch to call correct upstream `res.write`
+
+1.7.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+
+1.7.1 / 2014-07-26
+==================
+
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+
+1.7.0 / 2014-07-22
+==================
+
+  * Improve session-ending error handling
+    - Errors are passed to `next(err)` instead of `console.error`
+  * deps: debug@1.0.4
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+
+1.6.5 / 2014-07-11
+==================
+
+  * Do not require `req.originalUrl`
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+
+1.6.4 / 2014-07-07
+==================
+
+  * Fix blank responses for stores with synchronous operations
+
+1.6.3 / 2014-07-04
+==================
+
+  * Fix resave deprecation message
+
+1.6.2 / 2014-07-04
+==================
+
+  * Fix confusing option deprecation messages
+
+1.6.1 / 2014-06-28
+==================
+
+  * Fix saveUninitialized deprecation message
+
+1.6.0 / 2014-06-28
+==================
+
+  * Add deprecation message to undefined `resave` option
+  * Add deprecation message to undefined `saveUninitialized` option
+  * Fix `res.end` patch to return correct value
+  * Fix `res.end` patch to handle multiple `res.end` calls
+  * Reject cookies with missing signatures
+
+1.5.2 / 2014-06-26
+==================
+
+  * deps: cookie-signature@1.0.4
+    - fix for timing attacks
+
+1.5.1 / 2014-06-21
+==================
+
+  * Move hard-to-track-down `req.secret` deprecation message
+
+1.5.0 / 2014-06-19
+==================
+
+  * Debug name is now "express-session"
+  * Deprecate integration with `cookie-parser` middleware
+  * Deprecate looking for secret in `req.secret`
+  * Directly read cookies; `cookie-parser` no longer required
+  * Directly set cookies; `res.cookie` no longer required
+  * Generate session IDs with `uid-safe`, faster and even less collisions
+
+1.4.0 / 2014-06-17
+==================
+
+  * Add `genid` option to generate custom session IDs
+  * Add `saveUninitialized` option to control saving uninitialized sessions
+  * Add `unset` option to control unsetting `req.session`
+  * Generate session IDs with `rand-token` by default; reduce collisions
+  * deps: buffer-crc32@0.2.3
+
+1.3.1 / 2014-06-14
+==================
+
+  * Add description in package for npmjs.org listing
+
+1.3.0 / 2014-06-14
+==================
+
+  * Integrate with express "trust proxy" by default
+  * deps: debug@1.0.2
+
+1.2.1 / 2014-05-27
+==================
+
+  * Fix `resave` such that `resave: true` works
+
+1.2.0 / 2014-05-19
+==================
+
+  * Add `resave` option to control saving unmodified sessions
+
+1.1.0 / 2014-05-12
+==================
+
+  * Add `name` option; replacement for `key` option
+  * Use `setImmediate` in MemoryStore for node.js >= 0.10
+
+1.0.4 / 2014-04-27
+==================
+
+  * deps: debug@0.8.1
+
+1.0.3 / 2014-04-19
+==================
+
+  *  Use `res.cookie()` instead of `res.setHeader()`
+  * deps: cookie@0.1.2
+
+1.0.2 / 2014-02-23
+==================
+
+  * Add missing dependency to `package.json`
+
+1.0.1 / 2014-02-15
+==================
+
+  * Add missing dependencies to `package.json`
+
+1.0.0 / 2014-02-15
+==================
+
+  * Genesis from `connect`
diff --git a/node_modules/express-session/LICENSE b/node_modules/express-session/LICENSE
new file mode 100644
index 0000000..9b59ff8
--- /dev/null
+++ b/node_modules/express-session/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2010 Sencha Inc.
+Copyright (c) 2011 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/express-session/README.md b/node_modules/express-session/README.md
new file mode 100644
index 0000000..b88ed82
--- /dev/null
+++ b/node_modules/express-session/README.md
@@ -0,0 +1,655 @@
+# express-session
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+[![Gratipay][gratipay-image]][gratipay-url]
+
+## Installation
+
+```bash
+$ npm install express-session
+```
+
+## API
+
+```js
+var session = require('express-session')
+```
+
+### session(options)
+
+Create a session middleware with the given `options`.
+
+**Note** Session data is _not_ saved in the cookie itself, just the session ID.
+Session data is stored server-side.
+
+**Note** Since version 1.5.0, the [`cookie-parser` middleware](https://www.npmjs.com/package/cookie-parser)
+no longer needs to be used for this module to work. This module now directly reads
+and writes cookies on `req`/`res`. Using `cookie-parser` may result in issues
+if the `secret` is not the same between this module and `cookie-parser`.
+
+**Warning** The default server-side session storage, `MemoryStore`, is _purposely_
+not designed for a production environment. It will leak memory under most
+conditions, does not scale past a single process, and is meant for debugging and
+developing.
+
+For a list of stores, see [compatible session stores](#compatible-session-stores).
+
+#### Options
+
+`express-session` accepts these properties in the options object.
+
+##### cookie
+
+Settings object for the session ID cookie. The default value is
+`{ path: '/', httpOnly: true, secure: false, maxAge: null }`.
+
+The following are options that can be set in this object.
+
+###### domain
+
+Specifies the value for the `Domain` `Set-Cookie` attribute. By default, no domain
+is set, and most clients will consider the cookie to apply to only the current
+domain.
+
+###### expires
+
+Specifies the `Date` object to be the value for the `Expires` `Set-Cookie` attribute.
+By default, no expiration is set, and most clients will consider this a
+"non-persistent cookie" and will delete it on a condition like exiting a web browser
+application.
+
+**Note** If both `expires` and `maxAge` are set in the options, then the last one
+defined in the object is what is used.
+
+**Note** The `expires` option should not be set directly; instead only use the `maxAge`
+option.
+
+###### httpOnly
+
+Specifies the `boolean` value for the `HttpOnly` `Set-Cookie` attribute. When truthy,
+the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly`
+attribute is set.
+
+**Note** be careful when setting this to `true`, as compliant clients will not allow
+client-side JavaScript to see the cookie in `document.cookie`.
+
+###### maxAge
+
+Specifies the `number` (in milliseconds) to use when calculating the `Expires`
+`Set-Cookie` attribute. This is done by taking the current server time and adding
+`maxAge` milliseconds to the value to calculate an `Expires` datetime. By default,
+no maximum age is set.
+
+**Note** If both `expires` and `maxAge` are set in the options, then the last one
+defined in the object is what is used.
+
+###### path
+
+Specifies the value for the `Path` `Set-Cookie`. By default, this is set to `'/'`, which
+is the root path of the domain.
+
+###### sameSite
+
+Specifies the `boolean` or `string` to be the value for the `SameSite` `Set-Cookie` attribute.
+
+  - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+  - `false` will not set the `SameSite` attribute.
+  - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.
+  - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+
+More information about the different enforcement levels can be found in the specification
+https://tools.ietf.org/html/draft-west-first-party-cookies-07#section-4.1.1
+
+**Note** This is an attribute that has not yet been fully standardized, and may change in
+the future. This also means many clients may ignore this attribute until they understand it.
+
+###### secure
+
+Specifies the `boolean` value for the `Secure` `Set-Cookie` attribute. When truthy,
+the `Secure` attribute is set, otherwise it is not. By default, the `Secure`
+attribute is not set.
+
+**Note** be careful when setting this to `true`, as compliant clients will not send
+the cookie back to the server in the future if the browser does not have an HTTPS
+connection.
+
+Please note that `secure: true` is a **recommended** option. However, it requires
+an https-enabled website, i.e., HTTPS is necessary for secure cookies. If `secure`
+is set, and you access your site over HTTP, the cookie will not be set. If you
+have your node.js behind a proxy and are using `secure: true`, you need to set
+"trust proxy" in express:
+
+```js
+var app = express()
+app.set('trust proxy', 1) // trust first proxy
+app.use(session({
+  secret: 'keyboard cat',
+  resave: false,
+  saveUninitialized: true,
+  cookie: { secure: true }
+}))
+```
+
+For using secure cookies in production, but allowing for testing in development,
+the following is an example of enabling this setup based on `NODE_ENV` in express:
+
+```js
+var app = express()
+var sess = {
+  secret: 'keyboard cat',
+  cookie: {}
+}
+
+if (app.get('env') === 'production') {
+  app.set('trust proxy', 1) // trust first proxy
+  sess.cookie.secure = true // serve secure cookies
+}
+
+app.use(session(sess))
+```
+
+The `cookie.secure` option can also be set to the special value `'auto'` to have
+this setting automatically match the determined security of the connection. Be
+careful when using this setting if the site is available both as HTTP and HTTPS,
+as once the cookie is set on HTTPS, it will no longer be visible over HTTP. This
+is useful when the Express `"trust proxy"` setting is properly setup to simplify
+development vs production configuration.
+
+##### genid
+
+Function to call to generate a new session ID. Provide a function that returns
+a string that will be used as a session ID. The function is given `req` as the
+first argument if you want to use some value attached to `req` when generating
+the ID.
+
+The default value is a function which uses the `uid-safe` library to generate IDs.
+
+**NOTE** be careful to generate unique IDs so your sessions do not conflict.
+
+```js
+app.use(session({
+  genid: function(req) {
+    return genuuid() // use UUIDs for session IDs
+  },
+  secret: 'keyboard cat'
+}))
+```
+
+##### name
+
+The name of the session ID cookie to set in the response (and read from in the
+request).
+
+The default value is `'connect.sid'`.
+
+**Note** if you have multiple apps running on the same hostname (this is just
+the name, i.e. `localhost` or `127.0.0.1`; different schemes and ports do not
+name a different hostname), then you need to separate the session cookies from
+each other. The simplest method is to simply set different `name`s per app.
+
+##### proxy
+
+Trust the reverse proxy when setting secure cookies (via the "X-Forwarded-Proto"
+header).
+
+The default value is `undefined`.
+
+  - `true` The "X-Forwarded-Proto" header will be used.
+  - `false` All headers are ignored and the connection is considered secure only
+    if there is a direct TLS/SSL connection.
+  - `undefined` Uses the "trust proxy" setting from express
+
+##### resave
+
+Forces the session to be saved back to the session store, even if the session
+was never modified during the request. Depending on your store this may be
+necessary, but it can also create race conditions where a client makes two
+parallel requests to your server and changes made to the session in one
+request may get overwritten when the other request ends, even if it made no
+changes (this behavior also depends on what store you're using).
+
+The default value is `true`, but using the default has been deprecated,
+as the default will change in the future. Please research into this setting
+and choose what is appropriate to your use-case. Typically, you'll want
+`false`.
+
+How do I know if this is necessary for my store? The best way to know is to
+check with your store if it implements the `touch` method. If it does, then
+you can safely set `resave: false`. If it does not implement the `touch`
+method and your store sets an expiration date on stored sessions, then you
+likely need `resave: true`.
+
+##### rolling
+
+Force a session identifier cookie to be set on every response. The expiration
+is reset to the original [`maxAge`](#cookiemaxage), resetting the expiration
+countdown.
+
+The default value is `false`.
+
+**Note** When this option is set to `true` but the `saveUninitialized` option is
+set to `false`, the cookie will not be set on a response with an uninitialized
+session.
+
+##### saveUninitialized
+
+Forces a session that is "uninitialized" to be saved to the store. A session is
+uninitialized when it is new but not modified. Choosing `false` is useful for
+implementing login sessions, reducing server storage usage, or complying with
+laws that require permission before setting a cookie. Choosing `false` will also
+help with race conditions where a client makes multiple parallel requests
+without a session.
+
+The default value is `true`, but using the default has been deprecated, as the
+default will change in the future. Please research into this setting and
+choose what is appropriate to your use-case.
+
+**Note** if you are using Session in conjunction with PassportJS, Passport
+will add an empty Passport object to the session for use after a user is
+authenticated, which will be treated as a modification to the session, causing
+it to be saved. *This has been fixed in PassportJS 0.3.0*
+
+##### secret
+
+**Required option**
+
+This is the secret used to sign the session ID cookie. This can be either a string
+for a single secret, or an array of multiple secrets. If an array of secrets is
+provided, only the first element will be used to sign the session ID cookie, while
+all the elements will be considered when verifying the signature in requests.
+
+##### store
+
+The session store instance, defaults to a new `MemoryStore` instance.
+
+##### unset
+
+Control the result of unsetting `req.session` (through `delete`, setting to `null`,
+etc.).
+
+The default value is `'keep'`.
+
+  - `'destroy'` The session will be destroyed (deleted) when the response ends.
+  - `'keep'` The session in the store will be kept, but modifications made during
+    the request are ignored and not saved.
+
+### req.session
+
+To store or access session data, simply use the request property `req.session`,
+which is (generally) serialized as JSON by the store, so nested objects
+are typically fine. For example below is a user-specific view counter:
+
+```js
+// Use the session middleware
+app.use(session({ secret: 'keyboard cat', cookie: { maxAge: 60000 }}))
+
+// Access the session as req.session
+app.get('/', function(req, res, next) {
+  var sess = req.session
+  if (sess.views) {
+    sess.views++
+    res.setHeader('Content-Type', 'text/html')
+    res.write('<p>views: ' + sess.views + '</p>')
+    res.write('<p>expires in: ' + (sess.cookie.maxAge / 1000) + 's</p>')
+    res.end()
+  } else {
+    sess.views = 1
+    res.end('welcome to the session demo. refresh!')
+  }
+})
+```
+
+#### Session.regenerate()
+
+To regenerate the session simply invoke the method. Once complete,
+a new SID and `Session` instance will be initialized at `req.session`.
+
+```js
+req.session.regenerate(function(err) {
+  // will have a new session here
+})
+```
+
+#### Session.destroy()
+
+Destroys the session, removing `req.session`; will be re-generated next request.
+
+```js
+req.session.destroy(function(err) {
+  // cannot access session here
+})
+```
+
+#### Session.reload()
+
+Reloads the session data.
+
+```js
+req.session.reload(function(err) {
+  // session updated
+})
+```
+
+#### Session.save()
+
+Save the session back to the store, replacing the contents on the store with the
+contents in memory (though a store may do something else--consult the store's
+documentation for exact behavior).
+
+This method is automatically called at the end of the HTTP response if the
+session data has been altered (though this behavior can be altered with various
+options in the middleware constructor). Because of this, typically this method
+does not need to be called.
+
+There are some cases where it is useful to call this method, for example, long-
+lived requests or in WebSockets.
+
+```js
+req.session.save(function(err) {
+  // session saved
+})
+```
+
+#### Session.touch()
+
+Updates the `.maxAge` property. Typically this is
+not necessary to call, as the session middleware does this for you.
+
+### req.session.id
+
+Each session has a unique ID associated with it. This property will
+contain the session ID and cannot be modified.
+
+### req.session.cookie
+
+Each session has a unique cookie object accompany it. This allows
+you to alter the session cookie per visitor. For example we can
+set `req.session.cookie.expires` to `false` to enable the cookie
+to remain for only the duration of the user-agent.
+
+#### Cookie.maxAge
+
+Alternatively `req.session.cookie.maxAge` will return the time
+remaining in milliseconds, which we may also re-assign a new value
+to adjust the `.expires` property appropriately. The following
+are essentially equivalent
+
+```js
+var hour = 3600000
+req.session.cookie.expires = new Date(Date.now() + hour)
+req.session.cookie.maxAge = hour
+```
+
+For example when `maxAge` is set to `60000` (one minute), and 30 seconds
+has elapsed it will return `30000` until the current request has completed,
+at which time `req.session.touch()` is called to reset `req.session.maxAge`
+to its original value.
+
+```js
+req.session.cookie.maxAge // => 30000
+```
+
+### req.sessionID
+
+To get the ID of the loaded session, access the request property
+`req.sessionID`. This is simply a read-only value set when a session
+is loaded/created.
+
+## Session Store Implementation
+
+Every session store _must_ be an `EventEmitter` and implement specific
+methods. The following methods are the list of **required**, **recommended**,
+and **optional**.
+
+  * Required methods are ones that this module will always call on the store.
+  * Recommended methods are ones that this module will call on the store if
+    available.
+  * Optional methods are ones this module does not call at all, but helps
+    present uniform stores to users.
+
+For an example implementation view the [connect-redis](http://github.com/visionmedia/connect-redis) repo.
+
+### store.all(callback)
+
+**Optional**
+
+This optional method is used to get all sessions in the store as an array. The
+`callback` should be called as `callback(error, sessions)`.
+
+### store.destroy(sid, callback)
+
+**Required**
+
+This required method is used to destroy/delete a session from the store given
+a session ID (`sid`). The `callback` should be called as `callback(error)` once
+the session is destroyed.
+
+### store.clear(callback)
+
+**Optional**
+
+This optional method is used to delete all sessions from the store. The
+`callback` should be called as `callback(error)` once the store is cleared.
+
+### store.length(callback)
+
+**Optional**
+
+This optional method is used to get the count of all sessions in the store.
+The `callback` should be called as `callback(error, len)`.
+
+### store.get(sid, callback)
+
+**Required**
+
+This required method is used to get a session from the store given a session
+ID (`sid`). The `callback` should be called as `callback(error, session)`.
+
+The `session` argument should be a session if found, otherwise `null` or
+`undefined` if the session was not found (and there was no error). A special
+case is made when `error.code === 'ENOENT'` to act like `callback(null, null)`.
+
+### store.set(sid, session, callback)
+
+**Required**
+
+This required method is used to upsert a session into the store given a
+session ID (`sid`) and session (`session`) object. The callback should be
+called as `callback(error)` once the session has been set in the store.
+
+### store.touch(sid, session, callback)
+
+**Recommended**
+
+This recommended method is used to "touch" a given session given a
+session ID (`sid`) and session (`session`) object. The `callback` should be
+called as `callback(error)` once the session has been touched.
+
+This is primarily used when the store will automatically delete idle sessions
+and this method is used to signal to the store the given session is active,
+potentially resetting the idle timer.
+
+## Compatible Session Stores
+
+The following modules implement a session store that is compatible with this
+module. Please make a PR to add additional modules :)
+
+[![★][cassandra-store-image] cassandra-store][cassandra-store-url] An Apache Cassandra-based session store.
+
+[cassandra-store-url]: https://www.npmjs.com/package/cassandra-store
+[cassandra-store-image]: https://img.shields.io/github/stars/webcc/cassandra-store.svg?label=%E2%98%85
+
+[![★][cluster-store-image] cluster-store][cluster-store-url] A wrapper for using in-process / embedded
+stores - such as SQLite (via knex), leveldb, files, or memory - with node cluster (desirable for Raspberry Pi 2
+and other multi-core embedded devices).
+
+[cluster-store-url]: https://www.npmjs.com/package/cluster-store
+[cluster-store-image]: https://img.shields.io/github/stars/coolaj86/cluster-store.svg?label=%E2%98%85
+
+[![★][connect-azuretables-image] connect-azuretables][connect-azuretables-url] An [Azure Table Storage](https://azure.microsoft.com/en-gb/services/storage/tables/)-based session store.
+
+[connect-azuretables-url]: https://www.npmjs.com/package/connect-azuretables
+[connect-azuretables-image]: https://img.shields.io/github/stars/mike-goodwin/connect-azuretables.svg?label=%E2%98%85
+
+[![★][connect-couchbase-image] connect-couchbase][connect-couchbase-url] A [couchbase](http://www.couchbase.com/)-based session store.
+
+[connect-couchbase-url]: https://www.npmjs.com/package/connect-couchbase
+[connect-couchbase-image]: https://img.shields.io/github/stars/christophermina/connect-couchbase.svg?label=%E2%98%85
+
+[![★][connect-dynamodb-image] connect-dynamodb][connect-dynamodb-url] A DynamoDB-based session store.
+
+[connect-dynamodb-url]: https://github.com/ca98am79/connect-dynamodb
+[connect-dynamodb-image]: https://img.shields.io/github/stars/ca98am79/connect-dynamodb.svg?label=%E2%98%85
+
+[![★][connect-mssql-image] connect-mssql][connect-mssql-url] A SQL Server-based session store.
+
+[connect-mssql-url]: https://www.npmjs.com/package/connect-mssql
+[connect-mssql-image]: https://img.shields.io/github/stars/patriksimek/connect-mssql.svg?label=%E2%98%85
+
+[![★][connect-monetdb-image] connect-monetdb][connect-monetdb-url] A MonetDB-based session store.
+
+[connect-monetdb-url]: https://www.npmjs.com/package/connect-monetdb
+[connect-monetdb-image]: https://img.shields.io/github/stars/MonetDB/npm-connect-monetdb.svg?label=%E2%98%85
+
+[![★][connect-mongo-image] connect-mongo][connect-mongo-url] A MongoDB-based session store.
+
+[connect-mongo-url]: https://www.npmjs.com/package/connect-mongo
+[connect-mongo-image]: https://img.shields.io/github/stars/kcbanner/connect-mongo.svg?label=%E2%98%85
+
+[![★][connect-mongodb-session-image] connect-mongodb-session][connect-mongodb-session-url] Lightweight MongoDB-based session store built and maintained by MongoDB.
+
+[connect-mongodb-session-url]: https://www.npmjs.com/package/connect-mongodb-session
+[connect-mongodb-session-image]: https://img.shields.io/github/stars/mongodb-js/connect-mongodb-session.svg?label=%E2%98%85
+
+[![★][connect-pg-simple-image] connect-pg-simple][connect-pg-simple-url] A PostgreSQL-based session store.
+
+[connect-pg-simple-url]: https://www.npmjs.com/package/connect-pg-simple
+[connect-pg-simple-image]: https://img.shields.io/github/stars/voxpelli/node-connect-pg-simple.svg?label=%E2%98%85
+
+[![★][connect-redis-image] connect-redis][connect-redis-url] A Redis-based session store.
+
+[connect-redis-url]: https://www.npmjs.com/package/connect-redis
+[connect-redis-image]: https://img.shields.io/github/stars/tj/connect-redis.svg?label=%E2%98%85
+
+[![★][connect-memcached-image] connect-memcached][connect-memcached-url] A memcached-based session store.
+
+[connect-memcached-url]: https://www.npmjs.com/package/connect-memcached
+[connect-memcached-image]: https://img.shields.io/github/stars/balor/connect-memcached.svg?label=%E2%98%85
+
+[![★][connect-session-knex-image] connect-session-knex][connect-session-knex-url] A session store using
+[Knex.js](http://knexjs.org/), which is a SQL query builder for PostgreSQL, MySQL, MariaDB, SQLite3, and Oracle.
+
+[connect-session-knex-url]: https://www.npmjs.com/package/connect-session-knex
+[connect-session-knex-image]: https://img.shields.io/github/stars/llambda/connect-session-knex.svg?label=%E2%98%85
+
+[![★][connect-session-sequelize-image] connect-session-sequelize][connect-session-sequelize-url] A session store using
+[Sequelize.js](http://sequelizejs.com/), which is a Node.js / io.js ORM for PostgreSQL, MySQL, SQLite and MSSQL.
+
+[connect-session-sequelize-url]: https://www.npmjs.com/package/connect-session-sequelize
+[connect-session-sequelize-image]: https://img.shields.io/github/stars/mweibel/connect-session-sequelize.svg?label=%E2%98%85
+
+[![★][express-mysql-session-image] express-mysql-session][express-mysql-session-url] A session store using native
+[MySQL](https://www.mysql.com/) via the [node-mysql](https://github.com/felixge/node-mysql) module.
+
+[express-mysql-session-url]: https://www.npmjs.com/package/express-mysql-session
+[express-mysql-session-image]: https://img.shields.io/github/stars/chill117/express-mysql-session.svg?label=%E2%98%85
+
+[![★][connect-sqlite3-image] connect-sqlite3][connect-sqlite3-url] A [SQLite3](https://github.com/mapbox/node-sqlite3) session store modeled after the TJ's `connect-redis` store.
+
+[connect-sqlite3-url]: https://www.npmjs.com/package/connect-sqlite3
+[connect-sqlite3-image]: https://img.shields.io/github/stars/rawberg/connect-sqlite3.svg?label=%E2%98%85
+
+[![★][express-nedb-session-image] express-nedb-session][express-nedb-session-url] A NeDB-based session store.
+
+[express-nedb-session-url]: https://www.npmjs.com/package/express-nedb-session
+[express-nedb-session-image]: https://img.shields.io/github/stars/louischatriot/express-nedb-session.svg?label=%E2%98%85
+
+[![★][level-session-store-image] level-session-store][level-session-store-url] A LevelDB-based session store.
+
+[level-session-store-url]: https://www.npmjs.com/package/level-session-store
+[level-session-store-image]: https://img.shields.io/github/stars/scriptollc/level-session-store.svg?label=%E2%98%85
+
+[![★][mssql-session-store-image] mssql-session-store][mssql-session-store-url] A SQL Server-based session store.
+
+[mssql-session-store-url]: https://www.npmjs.com/package/mssql-session-store
+[mssql-session-store-image]: https://img.shields.io/github/stars/jwathen/mssql-session-store.svg?label=%E2%98%85
+
+[![★][nedb-session-store-image] nedb-session-store][nedb-session-store-url] An alternate NeDB-based (either in-memory or file-persisted) session store.
+
+[nedb-session-store-url]: https://www.npmjs.com/package/nedb-session-store
+[nedb-session-store-image]: https://img.shields.io/github/stars/JamesMGreene/nedb-session-store.svg?label=%E2%98%85
+
+[![★][sequelstore-connect-image] sequelstore-connect][sequelstore-connect-url] A session store using [Sequelize.js](http://sequelizejs.com/).
+
+[sequelstore-connect-url]: https://www.npmjs.com/package/sequelstore-connect
+[sequelstore-connect-image]: https://img.shields.io/github/stars/MattMcFarland/sequelstore-connect.svg?label=%E2%98%85
+
+[![★][session-file-store-image] session-file-store][session-file-store-url] A file system-based session store.
+
+[session-file-store-url]: https://www.npmjs.com/package/session-file-store
+[session-file-store-image]: https://img.shields.io/github/stars/valery-barysok/session-file-store.svg?label=%E2%98%85
+
+[![★][session-rethinkdb-image] session-rethinkdb][session-rethinkdb-url] A [RethinkDB](http://rethinkdb.com/)-based session store.
+
+[session-rethinkdb-url]: https://www.npmjs.com/package/session-rethinkdb
+[session-rethinkdb-image]: https://img.shields.io/github/stars/llambda/session-rethinkdb.svg?label=%E2%98%85
+
+## Example
+
+A simple example using `express-session` to store page views for a user.
+
+```js
+var express = require('express')
+var parseurl = require('parseurl')
+var session = require('express-session')
+
+var app = express()
+
+app.use(session({
+  secret: 'keyboard cat',
+  resave: false,
+  saveUninitialized: true
+}))
+
+app.use(function (req, res, next) {
+  var views = req.session.views
+
+  if (!views) {
+    views = req.session.views = {}
+  }
+
+  // get the url pathname
+  var pathname = parseurl(req).pathname
+
+  // count the views
+  views[pathname] = (views[pathname] || 0) + 1
+
+  next()
+})
+
+app.get('/foo', function (req, res, next) {
+  res.send('you viewed this page ' + req.session.views['/foo'] + ' times')
+})
+
+app.get('/bar', function (req, res, next) {
+  res.send('you viewed this page ' + req.session.views['/bar'] + ' times')
+})
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/express-session.svg
+[npm-url]: https://npmjs.org/package/express-session
+[travis-image]: https://img.shields.io/travis/expressjs/session/master.svg
+[travis-url]: https://travis-ci.org/expressjs/session
+[coveralls-image]: https://img.shields.io/coveralls/expressjs/session/master.svg
+[coveralls-url]: https://coveralls.io/r/expressjs/session?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/express-session.svg
+[downloads-url]: https://npmjs.org/package/express-session
+[gratipay-image]: https://img.shields.io/gratipay/dougwilson.svg
+[gratipay-url]: https://gratipay.com/dougwilson/
diff --git a/node_modules/express-session/index.js b/node_modules/express-session/index.js
new file mode 100644
index 0000000..5794118
--- /dev/null
+++ b/node_modules/express-session/index.js
@@ -0,0 +1,637 @@
+/*!
+ * express-session
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var cookie = require('cookie');
+var crc = require('crc').crc32;
+var debug = require('debug')('express-session');
+var deprecate = require('depd')('express-session');
+var parseUrl = require('parseurl');
+var uid = require('uid-safe').sync
+  , onHeaders = require('on-headers')
+  , signature = require('cookie-signature')
+
+var Session = require('./session/session')
+  , MemoryStore = require('./session/memory')
+  , Cookie = require('./session/cookie')
+  , Store = require('./session/store')
+
+// environment
+
+var env = process.env.NODE_ENV;
+
+/**
+ * Expose the middleware.
+ */
+
+exports = module.exports = session;
+
+/**
+ * Expose constructors.
+ */
+
+exports.Store = Store;
+exports.Cookie = Cookie;
+exports.Session = Session;
+exports.MemoryStore = MemoryStore;
+
+/**
+ * Warning message for `MemoryStore` usage in production.
+ * @private
+ */
+
+var warning = 'Warning: connect.session() MemoryStore is not\n'
+  + 'designed for a production environment, as it will leak\n'
+  + 'memory, and will not scale past a single process.';
+
+/**
+ * Node.js 0.8+ async implementation.
+ * @private
+ */
+
+/* istanbul ignore next */
+var defer = typeof setImmediate === 'function'
+  ? setImmediate
+  : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)) }
+
+/**
+ * Setup session store with the given `options`.
+ *
+ * @param {Object} [options]
+ * @param {Object} [options.cookie] Options for cookie
+ * @param {Function} [options.genid]
+ * @param {String} [options.name=connect.sid] Session ID cookie name
+ * @param {Boolean} [options.proxy]
+ * @param {Boolean} [options.resave] Resave unmodified sessions back to the store
+ * @param {Boolean} [options.rolling] Enable/disable rolling session expiration
+ * @param {Boolean} [options.saveUninitialized] Save uninitialized sessions to the store
+ * @param {String|Array} [options.secret] Secret for signing session ID
+ * @param {Object} [options.store=MemoryStore] Session store
+ * @param {String} [options.unset]
+ * @return {Function} middleware
+ * @public
+ */
+
+function session(options) {
+  var opts = options || {}
+
+  // get the cookie options
+  var cookieOptions = opts.cookie || {}
+
+  // get the session id generate function
+  var generateId = opts.genid || generateSessionId
+
+  // get the session cookie name
+  var name = opts.name || opts.key || 'connect.sid'
+
+  // get the session store
+  var store = opts.store || new MemoryStore()
+
+  // get the trust proxy setting
+  var trustProxy = opts.proxy
+
+  // get the resave session option
+  var resaveSession = opts.resave;
+
+  // get the rolling session option
+  var rollingSessions = Boolean(opts.rolling)
+
+  // get the save uninitialized session option
+  var saveUninitializedSession = opts.saveUninitialized
+
+  // get the cookie signing secret
+  var secret = opts.secret
+
+  if (typeof generateId !== 'function') {
+    throw new TypeError('genid option must be a function');
+  }
+
+  if (resaveSession === undefined) {
+    deprecate('undefined resave option; provide resave option');
+    resaveSession = true;
+  }
+
+  if (saveUninitializedSession === undefined) {
+    deprecate('undefined saveUninitialized option; provide saveUninitialized option');
+    saveUninitializedSession = true;
+  }
+
+  if (opts.unset && opts.unset !== 'destroy' && opts.unset !== 'keep') {
+    throw new TypeError('unset option must be "destroy" or "keep"');
+  }
+
+  // TODO: switch to "destroy" on next major
+  var unsetDestroy = opts.unset === 'destroy'
+
+  if (Array.isArray(secret) && secret.length === 0) {
+    throw new TypeError('secret option array must contain one or more strings');
+  }
+
+  if (secret && !Array.isArray(secret)) {
+    secret = [secret];
+  }
+
+  if (!secret) {
+    deprecate('req.secret; provide secret option');
+  }
+
+  // notify user that this store is not
+  // meant for a production environment
+  if ('production' == env && store instanceof MemoryStore) {
+    /* istanbul ignore next: not tested */
+    console.warn(warning);
+  }
+
+  // generates the new session
+  store.generate = function(req){
+    req.sessionID = generateId(req);
+    req.session = new Session(req);
+    req.session.cookie = new Cookie(cookieOptions);
+
+    if (cookieOptions.secure === 'auto') {
+      req.session.cookie.secure = issecure(req, trustProxy);
+    }
+  };
+
+  var storeImplementsTouch = typeof store.touch === 'function';
+
+  // register event listeners for the store to track readiness
+  var storeReady = true
+  store.on('disconnect', function ondisconnect() {
+    storeReady = false
+  })
+  store.on('connect', function onconnect() {
+    storeReady = true
+  })
+
+  return function session(req, res, next) {
+    // self-awareness
+    if (req.session) {
+      next()
+      return
+    }
+
+    // Handle connection as if there is no session if
+    // the store has temporarily disconnected etc
+    if (!storeReady) {
+      debug('store is disconnected')
+      next()
+      return
+    }
+
+    // pathname mismatch
+    var originalPath = parseUrl.original(req).pathname;
+    if (originalPath.indexOf(cookieOptions.path || '/') !== 0) return next();
+
+    // ensure a secret is available or bail
+    if (!secret && !req.secret) {
+      next(new Error('secret option required for sessions'));
+      return;
+    }
+
+    // backwards compatibility for signed cookies
+    // req.secret is passed from the cookie parser middleware
+    var secrets = secret || [req.secret];
+
+    var originalHash;
+    var originalId;
+    var savedHash;
+
+    // expose store
+    req.sessionStore = store;
+
+    // get the session ID from the cookie
+    var cookieId = req.sessionID = getcookie(req, name, secrets);
+
+    // set-cookie
+    onHeaders(res, function(){
+      if (!req.session) {
+        debug('no session');
+        return;
+      }
+
+      if (!shouldSetCookie(req)) {
+        return;
+      }
+
+      // only send secure cookies via https
+      if (req.session.cookie.secure && !issecure(req, trustProxy)) {
+        debug('not secured');
+        return;
+      }
+
+      // touch session
+      req.session.touch();
+
+      // set cookie
+      setcookie(res, name, req.sessionID, secrets[0], req.session.cookie.data);
+    });
+
+    // proxy end() to commit the session
+    var _end = res.end;
+    var _write = res.write;
+    var ended = false;
+    res.end = function end(chunk, encoding) {
+      if (ended) {
+        return false;
+      }
+
+      ended = true;
+
+      var ret;
+      var sync = true;
+
+      function writeend() {
+        if (sync) {
+          ret = _end.call(res, chunk, encoding);
+          sync = false;
+          return;
+        }
+
+        _end.call(res);
+      }
+
+      function writetop() {
+        if (!sync) {
+          return ret;
+        }
+
+        if (chunk == null) {
+          ret = true;
+          return ret;
+        }
+
+        var contentLength = Number(res.getHeader('Content-Length'));
+
+        if (!isNaN(contentLength) && contentLength > 0) {
+          // measure chunk
+          chunk = !Buffer.isBuffer(chunk)
+            ? new Buffer(chunk, encoding)
+            : chunk;
+          encoding = undefined;
+
+          if (chunk.length !== 0) {
+            debug('split response');
+            ret = _write.call(res, chunk.slice(0, chunk.length - 1));
+            chunk = chunk.slice(chunk.length - 1, chunk.length);
+            return ret;
+          }
+        }
+
+        ret = _write.call(res, chunk, encoding);
+        sync = false;
+
+        return ret;
+      }
+
+      if (shouldDestroy(req)) {
+        // destroy session
+        debug('destroying');
+        store.destroy(req.sessionID, function ondestroy(err) {
+          if (err) {
+            defer(next, err);
+          }
+
+          debug('destroyed');
+          writeend();
+        });
+
+        return writetop();
+      }
+
+      // no session to save
+      if (!req.session) {
+        debug('no session');
+        return _end.call(res, chunk, encoding);
+      }
+
+      if (shouldSave(req)) {
+        req.session.save(function onsave(err) {
+          if (err) {
+            defer(next, err);
+          }
+
+          writeend();
+        });
+
+        return writetop();
+      } else if (storeImplementsTouch && shouldTouch(req)) {
+        // store implements touch method
+        debug('touching');
+        store.touch(req.sessionID, req.session, function ontouch(err) {
+          if (err) {
+            defer(next, err);
+          }
+
+          debug('touched');
+          writeend();
+        });
+
+        return writetop();
+      }
+
+      return _end.call(res, chunk, encoding);
+    };
+
+    // generate the session
+    function generate() {
+      store.generate(req);
+      originalId = req.sessionID;
+      originalHash = hash(req.session);
+      wrapmethods(req.session);
+    }
+
+    // wrap session methods
+    function wrapmethods(sess) {
+      var _save = sess.save;
+
+      function save() {
+        debug('saving %s', this.id);
+        savedHash = hash(this);
+        _save.apply(this, arguments);
+      }
+
+      Object.defineProperty(sess, 'save', {
+        configurable: true,
+        enumerable: false,
+        value: save,
+        writable: true
+      });
+    }
+
+    // check if session has been modified
+    function isModified(sess) {
+      return originalId !== sess.id || originalHash !== hash(sess);
+    }
+
+    // check if session has been saved
+    function isSaved(sess) {
+      return originalId === sess.id && savedHash === hash(sess);
+    }
+
+    // determine if session should be destroyed
+    function shouldDestroy(req) {
+      return req.sessionID && unsetDestroy && req.session == null;
+    }
+
+    // determine if session should be saved to store
+    function shouldSave(req) {
+      // cannot set cookie without a session ID
+      if (typeof req.sessionID !== 'string') {
+        debug('session ignored because of bogus req.sessionID %o', req.sessionID);
+        return false;
+      }
+
+      return !saveUninitializedSession && cookieId !== req.sessionID
+        ? isModified(req.session)
+        : !isSaved(req.session)
+    }
+
+    // determine if session should be touched
+    function shouldTouch(req) {
+      // cannot set cookie without a session ID
+      if (typeof req.sessionID !== 'string') {
+        debug('session ignored because of bogus req.sessionID %o', req.sessionID);
+        return false;
+      }
+
+      return cookieId === req.sessionID && !shouldSave(req);
+    }
+
+    // determine if cookie should be set on response
+    function shouldSetCookie(req) {
+      // cannot set cookie without a session ID
+      if (typeof req.sessionID !== 'string') {
+        return false;
+      }
+
+      return cookieId != req.sessionID
+        ? saveUninitializedSession || isModified(req.session)
+        : rollingSessions || req.session.cookie.expires != null && isModified(req.session);
+    }
+
+    // generate a session if the browser doesn't send a sessionID
+    if (!req.sessionID) {
+      debug('no SID sent, generating session');
+      generate();
+      next();
+      return;
+    }
+
+    // generate the session object
+    debug('fetching %s', req.sessionID);
+    store.get(req.sessionID, function(err, sess){
+      // error handling
+      if (err) {
+        debug('error %j', err);
+
+        if (err.code !== 'ENOENT') {
+          next(err);
+          return;
+        }
+
+        generate();
+      // no session
+      } else if (!sess) {
+        debug('no session found');
+        generate();
+      // populate req.session
+      } else {
+        debug('session found');
+        store.createSession(req, sess);
+        originalId = req.sessionID;
+        originalHash = hash(sess);
+
+        if (!resaveSession) {
+          savedHash = originalHash
+        }
+
+        wrapmethods(req.session);
+      }
+
+      next();
+    });
+  };
+};
+
+/**
+ * Generate a session ID for a new session.
+ *
+ * @return {String}
+ * @private
+ */
+
+function generateSessionId(sess) {
+  return uid(24);
+}
+
+/**
+ * Get the session ID cookie from request.
+ *
+ * @return {string}
+ * @private
+ */
+
+function getcookie(req, name, secrets) {
+  var header = req.headers.cookie;
+  var raw;
+  var val;
+
+  // read from cookie header
+  if (header) {
+    var cookies = cookie.parse(header);
+
+    raw = cookies[name];
+
+    if (raw) {
+      if (raw.substr(0, 2) === 's:') {
+        val = unsigncookie(raw.slice(2), secrets);
+
+        if (val === false) {
+          debug('cookie signature invalid');
+          val = undefined;
+        }
+      } else {
+        debug('cookie unsigned')
+      }
+    }
+  }
+
+  // back-compat read from cookieParser() signedCookies data
+  if (!val && req.signedCookies) {
+    val = req.signedCookies[name];
+
+    if (val) {
+      deprecate('cookie should be available in req.headers.cookie');
+    }
+  }
+
+  // back-compat read from cookieParser() cookies data
+  if (!val && req.cookies) {
+    raw = req.cookies[name];
+
+    if (raw) {
+      if (raw.substr(0, 2) === 's:') {
+        val = unsigncookie(raw.slice(2), secrets);
+
+        if (val) {
+          deprecate('cookie should be available in req.headers.cookie');
+        }
+
+        if (val === false) {
+          debug('cookie signature invalid');
+          val = undefined;
+        }
+      } else {
+        debug('cookie unsigned')
+      }
+    }
+  }
+
+  return val;
+}
+
+/**
+ * Hash the given `sess` object omitting changes to `.cookie`.
+ *
+ * @param {Object} sess
+ * @return {String}
+ * @private
+ */
+
+function hash(sess) {
+  return crc(JSON.stringify(sess, function (key, val) {
+    if (key !== 'cookie') {
+      return val;
+    }
+  }));
+}
+
+/**
+ * Determine if request is secure.
+ *
+ * @param {Object} req
+ * @param {Boolean} [trustProxy]
+ * @return {Boolean}
+ * @private
+ */
+
+function issecure(req, trustProxy) {
+  // socket is https server
+  if (req.connection && req.connection.encrypted) {
+    return true;
+  }
+
+  // do not trust proxy
+  if (trustProxy === false) {
+    return false;
+  }
+
+  // no explicit trust; try req.secure from express
+  if (trustProxy !== true) {
+    var secure = req.secure;
+    return typeof secure === 'boolean'
+      ? secure
+      : false;
+  }
+
+  // read the proto from x-forwarded-proto header
+  var header = req.headers['x-forwarded-proto'] || '';
+  var index = header.indexOf(',');
+  var proto = index !== -1
+    ? header.substr(0, index).toLowerCase().trim()
+    : header.toLowerCase().trim()
+
+  return proto === 'https';
+}
+
+/**
+ * Set cookie on response.
+ *
+ * @private
+ */
+
+function setcookie(res, name, val, secret, options) {
+  var signed = 's:' + signature.sign(val, secret);
+  var data = cookie.serialize(name, signed, options);
+
+  debug('set-cookie %s', data);
+
+  var prev = res.getHeader('set-cookie') || [];
+  var header = Array.isArray(prev) ? prev.concat(data)
+    : Array.isArray(data) ? [prev].concat(data)
+    : [prev, data];
+
+  res.setHeader('set-cookie', header)
+}
+
+/**
+ * Verify and decode the given `val` with `secrets`.
+ *
+ * @param {String} val
+ * @param {Array} secrets
+ * @returns {String|Boolean}
+ * @private
+ */
+function unsigncookie(val, secrets) {
+  for (var i = 0; i < secrets.length; i++) {
+    var result = signature.unsign(val, secrets[i]);
+
+    if (result !== false) {
+      return result;
+    }
+  }
+
+  return false;
+}
diff --git a/node_modules/express-session/package.json b/node_modules/express-session/package.json
new file mode 100644
index 0000000..f35ec2e
--- /dev/null
+++ b/node_modules/express-session/package.json
@@ -0,0 +1,121 @@
+{
+  "_args": [
+    [
+      "express-session",
+      "/home/humair/School/csc309/a4/solutions_repo"
+    ]
+  ],
+  "_from": "express-session@latest",
+  "_id": "express-session@1.14.0",
+  "_inCache": true,
+  "_installable": true,
+  "_location": "/express-session",
+  "_npmOperationalInternal": {
+    "host": "packages-12-west.internal.npmjs.com",
+    "tmp": "tmp/express-session-1.14.0.tgz_1467429048169_0.3337707840837538"
+  },
+  "_npmUser": {
+    "email": "doug@somethingdoug.com",
+    "name": "dougwilson"
+  },
+  "_npmVersion": "1.4.28",
+  "_phantomChildren": {},
+  "_requested": {
+    "name": "express-session",
+    "raw": "express-session",
+    "rawSpec": "",
+    "scope": null,
+    "spec": "latest",
+    "type": "tag"
+  },
+  "_requiredBy": [
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/express-session/-/express-session-1.14.0.tgz",
+  "_shasum": "f5eeed3f38bfa0c6af27a0aeb8c9ec67dc07e39e",
+  "_shrinkwrap": null,
+  "_spec": "express-session",
+  "_where": "/home/humair/School/csc309/a4/solutions_repo",
+  "author": {
+    "email": "tj@vision-media.ca",
+    "name": "TJ Holowaychuk",
+    "url": "http://tjholowaychuk.com"
+  },
+  "bugs": {
+    "url": "https://github.com/expressjs/session/issues"
+  },
+  "contributors": [
+    {
+      "name": "Douglas Christopher Wilson",
+      "email": "doug@somethingdoug.com"
+    },
+    {
+      "name": "Joe Wagner",
+      "email": "njwjs722@gmail.com"
+    }
+  ],
+  "dependencies": {
+    "cookie": "0.3.1",
+    "cookie-signature": "1.0.6",
+    "crc": "3.4.0",
+    "debug": "~2.2.0",
+    "depd": "~1.1.0",
+    "on-headers": "~1.0.1",
+    "parseurl": "~1.3.1",
+    "uid-safe": "~2.1.1",
+    "utils-merge": "1.0.0"
+  },
+  "description": "Simple session middleware for Express",
+  "devDependencies": {
+    "after": "0.8.1",
+    "cookie-parser": "1.4.3",
+    "express": "4.14.0",
+    "istanbul": "0.4.4",
+    "mocha": "2.5.3",
+    "supertest": "1.1.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "f5eeed3f38bfa0c6af27a0aeb8c9ec67dc07e39e",
+    "tarball": "https://registry.npmjs.org/express-session/-/express-session-1.14.0.tgz"
+  },
+  "engines": {
+    "node": ">= 0.8.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js",
+    "session/"
+  ],
+  "gitHead": "9fd23195578eac5962d52f46781a75a297fbe685",
+  "homepage": "https://github.com/expressjs/session",
+  "license": "MIT",
+  "maintainers": [
+    {
+      "name": "defunctzombie",
+      "email": "shtylman@gmail.com"
+    },
+    {
+      "name": "dougwilson",
+      "email": "doug@somethingdoug.com"
+    },
+    {
+      "name": "mscdex",
+      "email": "mscdex@mscdex.net"
+    }
+  ],
+  "name": "express-session",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/expressjs/session.git"
+  },
+  "scripts": {
+    "test": "mocha --bail --reporter spec test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec test/"
+  },
+  "version": "1.14.0"
+}
diff --git a/node_modules/express-session/session/cookie.js b/node_modules/express-session/session/cookie.js
new file mode 100644
index 0000000..a4dbd8a
--- /dev/null
+++ b/node_modules/express-session/session/cookie.js
@@ -0,0 +1,129 @@
+/*!
+ * Connect - session - Cookie
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var merge = require('utils-merge')
+  , cookie = require('cookie');
+
+/**
+ * Initialize a new `Cookie` with the given `options`.
+ *
+ * @param {IncomingMessage} req
+ * @param {Object} options
+ * @api private
+ */
+
+var Cookie = module.exports = function Cookie(options) {
+  this.path = '/';
+  this.maxAge = null;
+  this.httpOnly = true;
+  if (options) merge(this, options);
+  this.originalMaxAge = undefined == this.originalMaxAge
+    ? this.maxAge
+    : this.originalMaxAge;
+};
+
+/*!
+ * Prototype.
+ */
+
+Cookie.prototype = {
+
+  /**
+   * Set expires `date`.
+   *
+   * @param {Date} date
+   * @api public
+   */
+
+  set expires(date) {
+    this._expires = date;
+    this.originalMaxAge = this.maxAge;
+  },
+
+  /**
+   * Get expires `date`.
+   *
+   * @return {Date}
+   * @api public
+   */
+
+  get expires() {
+    return this._expires;
+  },
+
+  /**
+   * Set expires via max-age in `ms`.
+   *
+   * @param {Number} ms
+   * @api public
+   */
+
+  set maxAge(ms) {
+    this.expires = 'number' == typeof ms
+      ? new Date(Date.now() + ms)
+      : ms;
+  },
+
+  /**
+   * Get expires max-age in `ms`.
+   *
+   * @return {Number}
+   * @api public
+   */
+
+  get maxAge() {
+    return this.expires instanceof Date
+      ? this.expires.valueOf() - Date.now()
+      : this.expires;
+  },
+
+  /**
+   * Return cookie data object.
+   *
+   * @return {Object}
+   * @api private
+   */
+
+  get data() {
+    return {
+        originalMaxAge: this.originalMaxAge
+      , expires: this._expires
+      , secure: this.secure
+      , httpOnly: this.httpOnly
+      , domain: this.domain
+      , path: this.path
+    }
+  },
+
+  /**
+   * Return a serialized cookie string.
+   *
+   * @return {String}
+   * @api public
+   */
+
+  serialize: function(name, val){
+    return cookie.serialize(name, val, this.data);
+  },
+
+  /**
+   * Return JSON representation of this cookie.
+   *
+   * @return {Object}
+   * @api private
+   */
+
+  toJSON: function(){
+    return this.data;
+  }
+};
diff --git a/node_modules/express-session/session/memory.js b/node_modules/express-session/session/memory.js
new file mode 100644
index 0000000..25252b6
--- /dev/null
+++ b/node_modules/express-session/session/memory.js
@@ -0,0 +1,185 @@
+/*!
+ * express-session
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Store = require('./store')
+var util = require('util')
+
+/**
+ * Shim setImmediate for node.js < 0.10
+ * @private
+ */
+
+/* istanbul ignore next */
+var defer = typeof setImmediate === 'function'
+  ? setImmediate
+  : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)) }
+
+/**
+ * Module exports.
+ */
+
+module.exports = MemoryStore
+
+/**
+ * A session store in memory.
+ * @public
+ */
+
+function MemoryStore() {
+  Store.call(this)
+  this.sessions = Object.create(null)
+}
+
+/**
+ * Inherit from Store.
+ */
+
+util.inherits(MemoryStore, Store)
+
+/**
+ * Get all active sessions.
+ *
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.all = function all(callback) {
+  var sessionIds = Object.keys(this.sessions)
+  var sessions = Object.create(null)
+
+  for (var i = 0; i < sessionIds.length; i++) {
+    var sessionId = sessionIds[i]
+    var session = getSession.call(this, sessionId)
+
+    if (session) {
+      sessions[sessionId] = session;
+    }
+  }
+
+  callback && defer(callback, null, sessions)
+}
+
+/**
+ * Clear all sessions.
+ *
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.clear = function clear(callback) {
+  this.sessions = Object.create(null)
+  callback && defer(callback)
+}
+
+/**
+ * Destroy the session associated with the given session ID.
+ *
+ * @param {string} sessionId
+ * @public
+ */
+
+MemoryStore.prototype.destroy = function destroy(sessionId, callback) {
+  delete this.sessions[sessionId]
+  callback && defer(callback)
+}
+
+/**
+ * Fetch session by the given session ID.
+ *
+ * @param {string} sessionId
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.get = function get(sessionId, callback) {
+  defer(callback, null, getSession.call(this, sessionId))
+}
+
+/**
+ * Commit the given session associated with the given sessionId to the store.
+ *
+ * @param {string} sessionId
+ * @param {object} session
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.set = function set(sessionId, session, callback) {
+  this.sessions[sessionId] = JSON.stringify(session)
+  callback && defer(callback)
+}
+
+/**
+ * Get number of active sessions.
+ *
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.length = function length(callback) {
+  this.all(function (err, sessions) {
+    if (err) return callback(err)
+    callback(null, Object.keys(sessions).length)
+  })
+}
+
+/**
+ * Touch the given session object associated with the given session ID.
+ *
+ * @param {string} sessionId
+ * @param {object} session
+ * @param {function} callback
+ * @public
+ */
+
+MemoryStore.prototype.touch = function touch(sessionId, session, callback) {
+  var currentSession = getSession.call(this, sessionId)
+
+  if (currentSession) {
+    // update expiration
+    currentSession.cookie = session.cookie
+    this.sessions[sessionId] = JSON.stringify(currentSession)
+  }
+
+  callback && defer(callback)
+}
+
+/**
+ * Get session from the store.
+ * @private
+ */
+
+function getSession(sessionId) {
+  var sess = this.sessions[sessionId]
+
+  if (!sess) {
+    return
+  }
+
+  // parse
+  sess = JSON.parse(sess)
+
+  var expires = typeof sess.cookie.expires === 'string'
+    ? new Date(sess.cookie.expires)
+    : sess.cookie.expires
+
+  // destroy expired session
+  if (expires && expires <= Date.now()) {
+    delete this.sessions[sessionId]
+    return
+  }
+
+  return sess
+}
diff --git a/node_modules/express-session/session/session.js b/node_modules/express-session/session/session.js
new file mode 100644
index 0000000..2eacde6
--- /dev/null
+++ b/node_modules/express-session/session/session.js
@@ -0,0 +1,142 @@
+/*!
+ * Connect - session - Session
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Expose Session.
+ */
+
+module.exports = Session;
+
+/**
+ * Create a new `Session` with the given request and `data`.
+ *
+ * @param {IncomingRequest} req
+ * @param {Object} data
+ * @api private
+ */
+
+function Session(req, data) {
+  Object.defineProperty(this, 'req', { value: req });
+  Object.defineProperty(this, 'id', { value: req.sessionID });
+
+  if (typeof data === 'object' && data !== null) {
+    // merge data into this, ignoring prototype properties
+    for (var prop in data) {
+      if (!(prop in this)) {
+        this[prop] = data[prop]
+      }
+    }
+  }
+}
+
+/**
+ * Update reset `.cookie.maxAge` to prevent
+ * the cookie from expiring when the
+ * session is still active.
+ *
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'touch', function touch() {
+  return this.resetMaxAge();
+});
+
+/**
+ * Reset `.maxAge` to `.originalMaxAge`.
+ *
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'resetMaxAge', function resetMaxAge() {
+  this.cookie.maxAge = this.cookie.originalMaxAge;
+  return this;
+});
+
+/**
+ * Save the session data with optional callback `fn(err)`.
+ *
+ * @param {Function} fn
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'save', function save(fn) {
+  this.req.sessionStore.set(this.id, this, fn || function(){});
+  return this;
+});
+
+/**
+ * Re-loads the session data _without_ altering
+ * the maxAge properties. Invokes the callback `fn(err)`,
+ * after which time if no exception has occurred the
+ * `req.session` property will be a new `Session` object,
+ * although representing the same session.
+ *
+ * @param {Function} fn
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'reload', function reload(fn) {
+  var req = this.req
+    , store = this.req.sessionStore;
+  store.get(this.id, function(err, sess){
+    if (err) return fn(err);
+    if (!sess) return fn(new Error('failed to load session'));
+    store.createSession(req, sess);
+    fn();
+  });
+  return this;
+});
+
+/**
+ * Destroy `this` session.
+ *
+ * @param {Function} fn
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'destroy', function destroy(fn) {
+  delete this.req.session;
+  this.req.sessionStore.destroy(this.id, fn);
+  return this;
+});
+
+/**
+ * Regenerate this request's session.
+ *
+ * @param {Function} fn
+ * @return {Session} for chaining
+ * @api public
+ */
+
+defineMethod(Session.prototype, 'regenerate', function regenerate(fn) {
+  this.req.sessionStore.regenerate(this.req, fn);
+  return this;
+});
+
+/**
+ * Helper function for creating a method on a prototype.
+ *
+ * @param {Object} obj
+ * @param {String} name
+ * @param {Function} fn
+ * @private
+ */
+function defineMethod(obj, name, fn) {
+  Object.defineProperty(obj, name, {
+    configurable: true,
+    enumerable: false,
+    value: fn,
+    writable: true
+  });
+};
diff --git a/node_modules/express-session/session/store.js b/node_modules/express-session/session/store.js
new file mode 100644
index 0000000..387469c
--- /dev/null
+++ b/node_modules/express-session/session/store.js
@@ -0,0 +1,94 @@
+/*!
+ * Connect - session - Store
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Cookie = require('./cookie')
+var EventEmitter = require('events').EventEmitter
+var Session = require('./session')
+var util = require('util')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Store
+
+/**
+ * Abstract base class for session stores.
+ * @public
+ */
+
+function Store () {
+  EventEmitter.call(this)
+}
+
+/**
+ * Inherit from EventEmitter.
+ */
+
+util.inherits(Store, EventEmitter)
+
+/**
+ * Re-generate the given requests's session.
+ *
+ * @param {IncomingRequest} req
+ * @return {Function} fn
+ * @api public
+ */
+
+Store.prototype.regenerate = function(req, fn){
+  var self = this;
+  this.destroy(req.sessionID, function(err){
+    self.generate(req);
+    fn(err);
+  });
+};
+
+/**
+ * Load a `Session` instance via the given `sid`
+ * and invoke the callback `fn(err, sess)`.
+ *
+ * @param {String} sid
+ * @param {Function} fn
+ * @api public
+ */
+
+Store.prototype.load = function(sid, fn){
+  var self = this;
+  this.get(sid, function(err, sess){
+    if (err) return fn(err);
+    if (!sess) return fn();
+    var req = { sessionID: sid, sessionStore: self };
+    fn(null, self.createSession(req, sess))
+  });
+};
+
+/**
+ * Create session from JSON `sess` data.
+ *
+ * @param {IncomingRequest} req
+ * @param {Object} sess
+ * @return {Session}
+ * @api private
+ */
+
+Store.prototype.createSession = function(req, sess){
+  var expires = sess.cookie.expires
+    , orig = sess.cookie.originalMaxAge;
+  sess.cookie = new Cookie(sess.cookie);
+  if ('string' == typeof expires) sess.cookie.expires = new Date(expires);
+  sess.cookie.originalMaxAge = orig;
+  req.session = new Session(req, sess);
+  return req.session;
+};