Assignment 3

Due Date: 2022-11-02

Available Points: 20

Additional Methods

• No new methods

Additional Status Codes

• 206 Partial Content
• 300 Multiple Choice (Use if there are more than one possible representations and 1) User-agent sends Negotiate: 1.0 or 2) q values result in a tie)
• 406 Not Acceptable (Use if there are no possible representations that match the requested q values)
• 416 Requested Range Not Satisfiable

Additional Request Headers

• Accept
• Accept-Charset
• Accept-Encoding
• Accept-Language
• Negotiate
• Range (We will defer multiple Range specifications that would result in a multipart/byteranges response (RFC 7233; sections 4.1, 4.3))
• If-Range
• User-Agent
• Referer

Additional Response Headers

• Vary
• Content-Language
• Content-Location
• Content-Encoding
• Transfer-Encoding: chunked (Revisit Section 7.1, RFC 7230 for the correct syntax)
• Alternates
• TCN
• Accept-Range
• Content-Range
• Content-type (Add charset after type if not ISO-8859-1 (ASCII))

Encodings

• Supports gzip and compress
• Use chunked transfer encoding for any dynamically generated server response
  • For example, directory listings and 3xx, 4xx, 5xx html snippets
  • Use 2 lines as the “chunk”

Notes

• Support/advertise partial GET capability (i.e., Accept-Range) for all resources/responses for which you do not use Transfer-Encoding: chunked
• Use these language encodings (in a config file):
  • en, es, de, ja, ko, ru
• Use these non-ASCII charset encodings (in a config file):
  • jis -> iso-2022-jp
  • koi8-r -> koi8-r
  • euc-kr -> euc-kr
• Build Vary response header as:
  • Vary: negotiate, header1, header2, ..., headerN
  • Only send Vary if content negotiation is possible for this URI
• Generate structured ETags on selected representation as per RFC 2295 (section 9.2)

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 a3 tag
• Submissions will be evaluated using a variation of cs531a3 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 a3-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)