HTTP Class Overview

From MDC

This document provides an overview of the classes used by the Mozilla HTTP implementation. It's meant as a guide to developers wishing to understand or extend the Mozilla HTTP implementation.

Contents 1 nsHttpHandler 2 nsHttpChannel 3 nsHttpConnection 4 nsHttpConnectionInfo 5 nsHttpTransaction 6 nsHttpChunkedDecoder 7 nsHttpRequestHead 8 nsHttpResponseHead 9 nsHttpHeaderArray 10 nsHttpAuthCache 11 nsHttpBasicAuth 12 nsHttpDigestAuth 13 Original Document Information

[edit] nsHttpHandler

• implements nsIProtocolHandler
• manages preferences
• owns the authentication cache
• holds references to frequently used services

[edit] nsHttpChannel

• implements nsIHttpChannel
• talks to the cache
• initiates http transactions
• processes http response codes
• intercepts progress notifications

[edit] nsHttpConnection

• implements nsIStreamListener & nsIStreamProvider
• talks to the socket transport service
• feeds data to its transaction object
• routes progress notifications

[edit] nsHttpConnectionInfo

• identifies a connection

[edit] nsHttpTransaction

• implements nsIRequest
• encapsulates a http request and response
• parses incoming data

[edit] nsHttpChunkedDecoder

• owned by a transaction
• strips chunked transfer encoding

[edit] nsHttpRequestHead

• owns a nsHttpHeaderArray
• knows how to fill a request buffer

[edit] nsHttpResponseHead

• owns a nsHttpHeaderArray
• knows how to parse response lines
• performs common header manipulations/calculations

[edit] nsHttpHeaderArray

• stores http "<header>:<value>" pairs

[edit] nsHttpAuthCache

• stores authentication credentials for http auth domains

[edit] nsHttpBasicAuth

• implements nsIHttpAuthenticator
• generates BASIC auth credentials from user:pass

[edit] nsHttpDigestAuth

• implements nsIHttpAuthenticator
• generates DIGEST auth credentials from user:pass