Hypertext Transfer Protocol
, or HTTP
, is the protocol used within the World Wide Web
for transferring documents. Its latest version is 1.1
, an incompatible binary protocol, is designed to be its successor.
See Also edit
- HTTP - Hypertext Transfer Protocol
- The official page for the HTTP protocol specification.
HTTP was preceded by Tuplespace
, which is data-centric rather than resource-centric, and provides an even smaller set of verbs.EMJ
2015-11-13 : Is someone claiming an actual connection here? If not, why mention one particular idea among many about how to share data across a network?PYK
2015-11-13: Thanks for the heads-up. I had inadvertantly placed this note on the HTML
page, and have now moved it over to this page. HTTP must have been inspired by tuplespace, which is an earlier invention of a restricted set of verbs that is sufficient for the purpose distributing data among peers. HTTP is very similar, with only a few more verbs and a switch in focus from data to resources. People considering an HTTP-based architecture like REST
might be interested in considering tuplespace as an alternative. Tuplespace is more transactional. It provides an atomic pop
operation, while HTTP doesn't. I find it interesting that REST
has managed to retrofit HTML
to be more of a traditional desktop user interface system. HTTP and HTML were designed for a rather narrow purpose, and because of their wild success have ended up evolving back toward systems the predate them.
- Web Publishing
- contains a list of HTTP servers
Tcl Clients edit
- A client-side implementation of HTTP bundled with Tcl.
- Another client-side implementation of HTTP.
- A REST-capable, never-blocking HTTP client package that supports HTTPS, deflate, chunked encoding for Tcl, NaviServer, or AOLserver.
- ycl comm http
- An HTTP client that uses coroutines and reflected channels. Supports chunked encoding.
(The Docker client
implementation includes an implementation of the minimal subset of HTTP necessary for the very purpose of talking to the Docker daemon. It has the particularity (over http
) to support chunked encoding, and I wish I had known about rl_http
before! Note that the implementation is also able to perform HTTP protocol operation on top of any file descriptor, since it uses pipes to netcat
to talk to local Docker daemons (UNIX domain sockets). EF
- a tcllib module that attempts to automate the use of HTTP proxy servers in Tcl HTTP client code.
- a virtual filesystem for HTTP transactions
See Also edit
- http in Jacl
- Tunnel HTTP through SMTP
- Tunnel IRC through HTTP proxies
- allow HTTP/1.1 CONNECTs to the outside.
Line Translation editPYK
2016-04-13: When forming an HTTP request in Tcl, make sure lines end in CRLF. Otherwise, the reponse may be 400 Bad Request
. The MIME
module in Tcllib
produces messages with CRLF as the line delimiter, in which case the channel should be configured as -translation binary