TritonHTTP

Spec Summary

Here we provide a concise summary of the TritonHTTP spec. You should read the spec doc for more details and clarifications.

HTTP Messages

TritonHTTP follows the general HTTP message format. And it has some further specifications:

• HTTP version supported: HTTP/1.1
• Request method supported: GET
• Response status supported:
  • 200 OK
  • 400 Bad Request
  • 404 Not Found
• Request headers:
  • Host (required)
  • Connection (optional, Connection: close has special meaning influencing server logic)
  • Other headers are allowed, but won't have any effect on the server logic
• Response headers:
  • Date (required)
  • Last-Modified (required for a 200 response)
  • Content-Type (required for a 200 response)
  • Content-Length (required for a 200 response)
  • Connection: close (required in response for a Connection: close request, or for a 400 response)
  • Response headers should be written in sorted order for the ease of testing
  • Response headers should be returned in 'canonical form', meaning that the first letter and any letter following a hyphen should be upper-case. All other letters in the header string should be lower-case.

Server Logic

When to send a 200 response?

• When a valid request is received, and the requested file can be found.

When to send a 404 response?

• When a valid request is received, and the requested file cannot be found or is not under the doc root.

When to send a 400 response?

• When an invalid request is received.
• When timeout occurs and a partial request is received.

When to close the connection?

• When timeout occurs and no partial request is received.
• When EOF occurs.
• After sending a 400 response.
• After handling a valid request with a Connection: close header.

When to update the timeout?

• When trying to read a new request.

What is the timeout value?

• 5 seconds.

Implementation

Please limit your implimentation to the following files, because we'll only copy over these files for grading:

• tritonhttp/
  • request.go
  • response.go
  • server.go

There are some utility functions defined in tritonhttp/util.go that you might find useful.

Usage

The source code for tools needed to interact with TritonHTTP can be found in cmd. The following commands can be used to launch these tools:

1. make fetch - A tool that allows you to construct custom responses and send them to your web server. Please refer to the README in fetch's directory for more information.

2. make gohttpd - Starts up Go's inbuilt web-server.

3. make tritonhttpd - Starts up your implementation of TritonHTTP

Submission

Either submit through GitHub, or:

make submission

And upload the generated submission.zip file to Gradescope.# CSE 224 proj2

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