Assignment 2

Due Date: 2019-10-17

Available Points: 20

Additional Methods

• No new methods

Additional Status Codes

• 301 Moved Permanently (If /foo is a directory, the server should 301 redirect to /foo/)
• 302 Found (Respect mappings and status codes from a regular expressions-based redirection configuration file)
• 304 Not Modified
• 408 Request Timeout
• 412 Precondition Failed

Additional Request Headers

• Connection: close (It is now optional; its absence means the request is long-lived)
• If-Modified-Since
• If-Unmodified-Since
• If-Match
• If-None-Match

Additional Response Headers

• ETag (Only compute “strong” ETags, come up with your own method)
• Location

Notes

• Support both long-lived and pipelined connections
• Use a default of 5 seconds for timeouts (specify in a config file)
• Any GET method that does not result in a 2xx response code MUST have a text/html entity generated by the server explaining the response code (unless prohibited, like 304)
• In a config file, specify that index.html is the default resource name for when a URI ends in /
• If a directory does not have a default resource (i.e., index.html), then dynamically generate an HTML listing of the directories and files (they should be clickable, with dates, sizes, etc.)
• Create a separate config file that supports redirections of the form:

# Status: Incoming RegExp          Redirect URI
302: ^(.*)/coolcar.html$           $1/galaxie.html
302: ^/a2-test/(.*)/1\.[234]/(.*)  /a2-test/$1/1.1/$2
301: ^(.*)/mercury/(.*)$           $1/ford/$2

Submission and Evaluation

• Extract sample test files tarball into your web server’s document root
• Place your Dockerfile at the root of your repository (not inside of a nested folder)
• Make your Dockerfile run your server on port 80 by default
• Release your implementation with the a2 tag
• Submissions will be evaluated using a variation of cs531a2 test suite from our testing service and some manual inspection of responses and source code (if necessary)
• Tests will be performed based on the contents and structure of the a2-test folder of the sample test files
• One point will be awarded for passing test cases of each of the previous assignments (except certain test cases where there are obvious backward compatibility conflicts)