6708271862
Pulled the code from firecracker-microvm/src/micro-http. Signed-off-by: George Pisaltu <gpl@amazon.com> Signed-off-by: Andreea Florescu <fandree@amazon.com>
127 lines
4.1 KiB
Rust
127 lines
4.1 KiB
Rust
// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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// SPDX-License-Identifier: Apache-2.0
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#![deny(missing_docs)]
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//! Minimal implementation of the [HTTP/1.0](https://tools.ietf.org/html/rfc1945)
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//! and [HTTP/1.1](https://www.ietf.org/rfc/rfc2616.txt) protocols.
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//!
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//! HTTP/1.1 has a mandatory header **Host**, but as this crate is only used
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//! for parsing API requests, this header (if present) is ignored.
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//!
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//! This HTTP implementation is stateless thus it does not support chunking or
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//! compression.
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//!
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//! ## Supported Headers
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//! The **micro_http** crate has support for parsing the following **Request**
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//! headers:
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//! - Content-Length
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//! - Expect
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//! - Transfer-Encoding
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//!
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//! The **Response** does not have a public interface for adding headers, but whenever
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//! a write to the **Body** is made, the headers **ContentLength** and **MediaType**
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//! are automatically updated.
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//!
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//! ### Media Types
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//! The supported media types are:
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//! - text/plain
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//! - application/json
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//!
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//! ## Supported Methods
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//! The supported HTTP Methods are:
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//! - GET
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//! - PUT
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//! - PATCH
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//!
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//! ## Supported Status Codes
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//! The supported status codes are:
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//!
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//! - Continue - 100
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//! - OK - 200
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//! - No Content - 204
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//! - Bad Request - 400
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//! - Not Found - 404
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//! - Internal Server Error - 500
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//! - Not Implemented - 501
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//!
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//! ## Example for parsing an HTTP Request from a slice
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//! ```
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//! extern crate micro_http;
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//! use micro_http::{Request, Version};
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//!
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//! let http_request = Request::try_from(b"GET http://localhost/home HTTP/1.0\r\n\r\n").unwrap();
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//! assert_eq!(http_request.http_version(), Version::Http10);
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//! assert_eq!(http_request.uri().get_abs_path(), "/home");
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//! ```
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//!
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//! ## Example for creating an HTTP Response
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//! ```
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//! extern crate micro_http;
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//! use micro_http::{Body, MediaType, Response, StatusCode, Version};
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//!
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//! let mut response = Response::new(Version::Http10, StatusCode::OK);
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//! let body = String::from("This is a test");
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//! response.set_body(Body::new(body.clone()));
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//! response.set_content_type(MediaType::PlainText);
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//!
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//! assert!(response.status() == StatusCode::OK);
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//! assert_eq!(response.body().unwrap(), Body::new(body));
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//! assert_eq!(response.http_version(), Version::Http10);
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//!
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//! let mut response_buf: [u8; 126] = [0; 126];
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//! assert!(response.write_all(&mut response_buf.as_mut()).is_ok());
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//! ```
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//!
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//! `HttpConnection` can be used for automatic data exchange and parsing when
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//! handling a client, but it only supports one stream.
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//!
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//! For handling multiple clients use `HttpServer`, which multiplexes `HttpConnection`s
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//! and offers an easy to use interface. The server can run in either blocking or
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//! non-blocking mode. Non-blocking is achieved by using `epoll` to make sure
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//! `requests` will never block when called.
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//!
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//! ## Example for using the server
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//!
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//! ```
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//! extern crate micro_http;
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//! use micro_http::{HttpServer, Response, StatusCode};
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//!
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//! let path_to_socket = "/tmp/example.sock";
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//! std::fs::remove_file(path_to_socket).unwrap_or_default();
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//!
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//! // Start the server.
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//! let mut server = HttpServer::new(path_to_socket).unwrap();
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//! server.start_server().unwrap();
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//!
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//! // Connect a client to the server so it doesn't block in our example.
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//! let mut socket = std::os::unix::net::UnixStream::connect(path_to_socket).unwrap();
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//!
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//! // Server loop processing requests.
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//! loop {
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//! for request in server.requests().unwrap() {
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//! let response = request.process(|request| {
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//! // Your code here.
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//! Response::new(request.http_version(), StatusCode::NoContent)
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//! });
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//! server.respond(response);
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//! }
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//! // Break this example loop.
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//! break;
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//! }
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//! ```
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mod common;
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mod connection;
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mod request;
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mod response;
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mod server;
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use common::ascii;
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use common::headers;
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pub use connection::{ConnectionError, HttpConnection};
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pub use request::{Request, RequestError};
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pub use response::{Response, StatusCode};
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pub use server::{HttpServer, ServerError, ServerRequest, ServerResponse};
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pub use common::headers::{Headers, MediaType};
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pub use common::{Body, Method, Version};
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