Apache HTTP Server » Core routines. So, data structures are declared here, even though most of the code that cares really is in httpcore.c. Oleg, Thank you for responding. What version of httpcore should I put there? There is apparently non corresponding to 4.5.4. I tried httpcore-4.4.8 and the result was the same. 4.4.8 is the latest version I can find in Maven.

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mod_access_compat

Group authorizations based on host (name or IPaddress)

mod_actions

Execute CGI scripts based on media type or request method.

mod_alias

Provides for mapping different parts of the host filesystem in the document tree and for URL redirection

mod_allowmethods

Easily restrict what HTTP methods can be used on the server

mod_asis

Sends files that contain their ownHTTP headers

mod_auth_basic

Basic HTTP authentication

mod_auth_digest

User authentication using MD5 Digest Authentication

mod_auth_form

Form authentication

mod_authn_anon

Allows 'anonymous' user access to authenticated areas

mod_authn_core

Core Authentication

mod_authn_dbd

User authentication using an SQL database

mod_authn_dbm

User authentication using DBM files

mod_authn_file

User authentication using text files

mod_authn_socache

Manages a cache of authentication credentials to relievethe load on backends

mod_authnz_fcgi

Allows a FastCGI authorizer application to handle Apachehttpd authentication and authorization

mod_authnz_ldap

Allows an LDAP directory to be used to store the databasefor HTTP Basic authentication.

mod_authz_core

Core Authorization

mod_authz_dbd

Group Authorization and Login using SQL

mod_authz_dbm

Group authorization using DBM files

mod_authz_groupfile

Group authorization using plaintext files

mod_authz_host

Group authorizations based on host (name or IPaddress)

mod_authz_owner

Authorization based on file ownership

mod_authz_user

User Authorization

mod_autoindex

Generates directory indexes, automatically, similar to the Unix ls command or the Win32 dir shell command

mod_brotli

Compress content via Brotli before it is delivered to theclient

mod_buffer

Support for request buffering

mod_cache

RFC 2616 compliant HTTP caching filter.

mod_cache_disk

Disk based storage module for the HTTP caching filter.

mod_cache_socache

Shared object cache (socache) based storage module for theHTTP caching filter.

mod_cern_meta

CERN httpd metafile semantics

mod_cgi

Execution of CGI scripts

mod_cgid

Execution of CGI scripts using an external CGI daemon

mod_charset_lite

Specify character set translation or recoding

mod_data

Convert response body into an RFC2397 data URL

mod_dav

Distributed Authoring and Versioning(WebDAV) functionality

mod_dav_fs

Filesystem provider for mod_dav

mod_dav_lock

Generic locking module for mod_dav

mod_dbd

Manages SQL database connections

mod_deflate

Compress content before it is delivered to theclient

mod_dialup

Send static content at a bandwidth rate limit, defined by the various old modem standards

mod_dir

Provides for 'trailing slash' redirects and serving directory index files

mod_dumpio

Dumps all I/O to error log as desired.

mod_echo

A simple echo server to illustrate protocolmodules

mod_env

Modifies the environment which is passed to CGI scripts andSSI pages

mod_example_hooks

Illustrates the Apache module API

mod_expires

Generation of Expires andCache-Control HTTP headers according to user-specifiedcriteria

mod_ext_filter

Pass the response body through an external program beforedelivery to the client

mod_file_cache

Caches a static list of files in memory

mod_filter

Context-sensitive smart filter configuration module

mod_headers

Customization of HTTP request and responseheaders

mod_heartbeat

Sends messages with server status to frontend proxy

mod_heartmonitor

Centralized monitor for mod_heartbeat origin servers

mod_http2

Support for the HTTP/2 transport layer

mod_ident

RFC 1413 ident lookups

mod_imagemap

Server-side imagemap processing

mod_include

Server-parsed html documents (Server Side Includes)

mod_info

Provides a comprehensive overview of the serverconfiguration

mod_isapi

ISAPI Extensions within Apache for Windows

mod_lbmethod_bybusyness

Pending Request Counting load balancer scheduler algorithm for mod_proxy_balancer

mod_lbmethod_byrequests

Request Counting load balancer scheduler algorithm for mod_proxy_balancer

mod_lbmethod_bytraffic

Weighted Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer

mod_lbmethod_heartbeat

Heartbeat Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer

mod_ldap

LDAP connection pooling and result caching services for useby other LDAP modules

mod_log_config

Logging of the requests made to the server

mod_log_debug

Additional configurable debug logging

mod_log_forensic

Forensic Logging of the requests made to the server

mod_logio

Logging of input and output bytes per request

mod_lua

Provides Lua hooks into various portions of the httpdrequest processing

mod_macro

Provides macros within apache httpd runtime configuration files

mod_md

Managing domains across virtual hosts, certificate provisioning via the ACME protocol

mod_mime

Associates the requested filename's extensions with the file's behavior (handlers and filters) and content (mime-type, language, character set and encoding)

mod_mime_magic

Determines the MIME type of a file by looking at a few bytes of its contents

mod_negotiation

Provides for content negotiation

mod_nw_ssl

Enable SSL encryption for NetWare

mod_privileges

Support for Solaris privileges and for running virtual hostsunder different user IDs.

mod_proxy

Multi-protocol proxy/gateway server

mod_proxy_ajp

AJP support module formod_proxy

mod_proxy_balancer

mod_proxy extension for load balancing

mod_proxy_connect

mod_proxy extension forCONNECT request handling

mod_proxy_express

Dynamic mass reverse proxy extension formod_proxy

mod_proxy_fcgi

FastCGI support module formod_proxy

mod_proxy_fdpass

fdpass external process support module formod_proxy

mod_proxy_ftp

FTP support module formod_proxy

mod_proxy_hcheck

Dynamic health check of Balancer members (workers) formod_proxy

mod_proxy_html

Rewrite HTML links in to ensure they are addressablefrom Clients' networks in a proxy context.

mod_proxy_http

HTTP support module formod_proxy

mod_proxy_http2

HTTP/2 support module formod_proxy

mod_proxy_scgi

SCGI gateway module for mod_proxy

mod_proxy_uwsgi

UWSGI gateway module for mod_proxy

mod_proxy_wstunnel

Websockets support module formod_proxy

mod_ratelimit

Bandwidth Rate Limiting for Clients

mod_reflector

Reflect a request body as a response via the output filter stack.

mod_remoteip

Replaces the original client IP address for the connectionwith the useragent IP address list presented by a proxies or a load balancervia the request headers.

mod_reqtimeout

Set timeout and minimum data rate for receiving requests

mod_request

Filters to handle and make available HTTP request bodies

mod_rewrite

Provides a rule-based rewriting engine to rewrite requestedURLs on the fly

mod_sed

Filter Input (request) and Output (response) content using sed syntax

mod_session

Session support

mod_session_cookie

Cookie based session support

mod_session_crypto

Session encryption support

mod_session_dbd

DBD/SQL based session support

mod_setenvif

Allows the setting of environment variables basedon characteristics of the request

mod_slotmem_plain

Slot-based shared memory provider.

mod_slotmem_shm

Slot-based shared memory provider.

mod_so

Loading of executable code andmodules into the server at start-up or restart time

mod_socache_dbm

DBM based shared object cache provider.

mod_socache_dc

Distcache based shared object cache provider.

mod_socache_memcache

Memcache based shared object cache provider.

mod_socache_redis

Redis based shared object cache provider.

mod_socache_shmcb

shmcb based shared object cache provider.

mod_speling

Attempts to correct mistaken URLs by ignoringcapitalization, or attempting to correct various minormisspellings.

mod_ssl

Strong cryptography using the Secure SocketsLayer (SSL) and Transport Layer Security (TLS) protocols

mod_status

Provides information on server activity andperformance

mod_substitute

Perform search and replace operations on response bodies

mod_suexec

Allows CGI scripts to run as a specified userand Group

mod_systemd

Provides better support for systemd integration

mod_unique_id

Provides an environment variable with a uniqueidentifier for each request

mod_unixd

Basic (required) security for Unix-family platforms.

mod_userdir

User-specific directories

mod_usertrack

Clickstream logging of user activity on a site

mod_version

Version dependent configuration

mod_vhost_alias

Provides for dynamically configured mass virtualhosting

mod_watchdog

provides infrastructure for other modules to periodically run tasks

mod_xml2enc

Enhanced charset/internationalisation support for libxml2-basedfilter modules

The Apache HttpComponents project is responsible for creating and maintaining a toolset of low level Java components focused on HTTP and associated protocols.

This project functions under the Apache Software Foundation (http://www.apache.org), and is part of a larger community of developers and users.

HttpComponents Overview

The Hyper-Text Transfer Protocol (HTTP) is perhaps the most significant protocol used on the Internet today. Web services, network-enabled appliances and the growth of network computing continue to expand the role of the HTTP protocol beyond user-driven web browsers, while increasing the number of applications that require HTTP support.

Designed for extension while providing robust support for the base HTTP protocol, the HttpComponents may be of interest to anyone building HTTP-aware client and server applications such as web browsers, web spiders, HTTP proxies, web service transport libraries, or systems that leverage or extend the HTTP protocol for distributed communication.

HttpComponents Structure

HttpComponents Core

HttpCore is a set of low level HTTP transport components that can be used to build custom client and server side HTTP services with a minimal footprint. HttpCore supports two I/O models: blocking I/O model based on the classic Java I/O and non-blocking, event driven I/O model based on Java NIO. Blueway high power software.

HttpComponents Client

Apache Http Core 5

HttpClient is a HTTP/1.1 compliant HTTP agent implementation based on HttpCore. It also provides reusable components for client-side authentication, HTTP state management, and HTTP connection management. HttpComponents Client is a successor of and replacement for Commons HttpClient 3.x. Users of Commons HttpClient are strongly encouraged to upgrade.

Apache Http Core Jar Download

Commons HttpClient (legacy)

Apache Httpcore Nio

Commons HttpClient 3.x codeline is at the end of life. All users of Commons HttpClient 3.x are strongly encouraged to upgrade to HttpClient 4.1.