nwen406-p1

The first project for NWEN406.

This exists as a node in a relay group, where each node takes a JSON string and alters its value before passing the message on.

Uses libraries:

• request
• express
• crypto (md5)
• fs (sync)
• forever

Listens on port 3000.

##RESTful Interface: GET: /alive check if server is alive

GET: /log prints the current logs (supplied by forever)

GET: /api prints the latest files processed

POST: /api input for the JSON to be manipulated. Returns HTTP 202 Accepted. Accepts JSON of the structure:

{
  value: 'string to be altered',
  count: 0,    /* number of nodes successfully visited */
  audit: {},   /* visited nodes */
  order: [],   /* queue of addresses to be visited */
}

Where audit is an object inserted by each hop, of the form:

{
  input:  'string to be altered',
  output: 'the altered string',
  index: 0,                /* this nodes hop count */
  time: "Day, ... GMT",    /* time of receipt of input */
}

Data Manipulation Performed

The value string received is first hashed (MD5). This hashed value is then used to determine four positions from within Pride And Prejudice, and reads up to 5 words from that point. The first 50 characters of this output is then sent as the next value.

Other book options are available in text, but must be set in-code.