mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
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e50f4418a2
Based on Firecracker commit 58edf03b. We're going to use the micro_http crate to serve the cloud-hypervisor HTTP API. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
761 lines
30 KiB
Rust
761 lines
30 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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use std::collections::VecDeque;
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use std::io::{Read, Write};
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use common::ascii::{CR, CRLF_LEN, LF};
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use common::Body;
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pub use common::{ConnectionError, RequestError};
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use headers::Headers;
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use request::{find, Request, RequestLine};
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use response::{Response, StatusCode};
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const BUFFER_SIZE: usize = 1024;
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/// Describes the state machine of an HTTP connection.
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pub enum ConnectionState {
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WaitingForRequestLine,
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WaitingForHeaders,
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WaitingForBody,
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RequestReady,
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}
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/// A wrapper over a HTTP Connection.
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pub struct HttpConnection<T> {
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/// A partial request that is still being received.
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pending_request: Option<Request>,
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/// Stream implementing `Read` and `Write`, capable of sending and
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/// receiving bytes.
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stream: T,
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/// The state of the connection regarding the current request that
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/// is being processed.
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state: ConnectionState,
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/// Buffer where we store the bytes we read from the stream.
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buffer: [u8; BUFFER_SIZE],
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/// The index in the buffer from where we have to start reading in
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/// the next `try_read` call.
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read_cursor: usize,
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/// Contains all bytes pertaining to the body of the request that
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/// is currently being processed.
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body_vec: Vec<u8>,
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/// Represents how many bytes from the body of the request are still
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/// to be read.
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body_bytes_to_be_read: i32,
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/// A queue of all requests that have been fully received and parsed.
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parsed_requests: VecDeque<Request>,
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/// A queue of requests that are waiting to be sent.
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response_queue: VecDeque<Response>,
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/// A buffer containing the bytes of a response that is currently
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/// being sent.
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response_buffer: Option<Vec<u8>>,
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}
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impl<T: Read + Write> HttpConnection<T> {
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/// Creates an empty connection.
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pub fn new(stream: T) -> Self {
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HttpConnection {
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pending_request: None,
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stream,
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state: ConnectionState::WaitingForRequestLine,
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buffer: [0; BUFFER_SIZE],
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read_cursor: 0,
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body_vec: vec![],
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body_bytes_to_be_read: 0,
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parsed_requests: VecDeque::new(),
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response_queue: VecDeque::new(),
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response_buffer: None,
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}
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}
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/// Tries to read new bytes from the stream and automatically update the request.
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/// Meant to be used only with non-blocking streams and an `EPOLL` structure.
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/// Should be called whenever an `EPOLLIN` event is signaled.
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pub fn try_read(&mut self) -> Result<(), ConnectionError> {
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// Read some bytes from the stream, which will be appended to what is already
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// present in the buffer from a previous call of `try_read`. There are already
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// `read_cursor` bytes present in the buffer.
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let end_cursor = self.read_bytes()?;
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let mut line_start_index = 0;
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loop {
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match self.state {
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ConnectionState::WaitingForRequestLine => {
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if !self.parse_request_line(&mut line_start_index, end_cursor)? {
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return Ok(());
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}
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}
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ConnectionState::WaitingForHeaders => {
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if !self.parse_headers(&mut line_start_index, end_cursor)? {
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return Ok(());
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}
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}
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ConnectionState::WaitingForBody => {
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if !self.parse_body(&mut line_start_index, end_cursor)? {
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return Ok(());
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}
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}
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ConnectionState::RequestReady => {
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// This request is ready to be passed for handling.
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// Update the state machine to expect a new request and push this request into
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// the `parsed_requests` queue.
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self.state = ConnectionState::WaitingForRequestLine;
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self.body_bytes_to_be_read = 0;
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self.parsed_requests
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.push_back(self.pending_request.take().unwrap());
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}
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};
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}
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}
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// Reads a maximum of 1024 bytes from the stream into `buffer`.
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// The return value represents the end index of what we have just appended.
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fn read_bytes(&mut self) -> Result<usize, ConnectionError> {
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// Append new bytes to what we already have in the buffer.
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let bytes_read = self
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.stream
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.read(&mut self.buffer[self.read_cursor..])
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.map_err(ConnectionError::StreamError)?;
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// If the read returned 0 then the client has closed the connection.
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if bytes_read == 0 {
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return Err(ConnectionError::ConnectionClosed);
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}
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Ok(bytes_read + self.read_cursor)
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}
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// Parses bytes in `buffer` for a valid request line.
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// Returns `false` if there are no more bytes to be parsed in the buffer.
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fn parse_request_line(
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&mut self,
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start: &mut usize,
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end: usize,
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) -> Result<bool, ConnectionError> {
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match find(&self.buffer[*start..end], &[CR, LF]) {
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Some(line_end_index) => {
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let line = &self.buffer[*start..(*start + line_end_index)];
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*start = *start + line_end_index + CRLF_LEN;
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let request_line =
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RequestLine::try_from(line).map_err(ConnectionError::ParseError)?;
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// Form the request with a valid request line, which is the bare minimum
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// for a valid request.
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self.pending_request = Some(Request {
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request_line,
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headers: Headers::default(),
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body: None,
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});
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self.state = ConnectionState::WaitingForHeaders;
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Ok(true)
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}
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None => {
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// The request line is longer than BUFFER_SIZE bytes, so the request is invalid.
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if end == BUFFER_SIZE && *start == 0 {
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return Err(ConnectionError::ParseError(RequestError::InvalidRequest));
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} else {
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// Move the incomplete request line to the beginning of the buffer and wait
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// for the next `try_read` call to complete it.
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// This can only happen if another request was sent before this one, as the
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// limit for the length of a request line in this implementation is 1024 bytes.
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self.shift_buffer_left(*start, end);
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}
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Ok(false)
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}
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}
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}
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// Parses bytes in `buffer` for header fields.
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// Returns `false` if there are no more bytes to be parsed in the buffer.
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fn parse_headers(
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&mut self,
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line_start_index: &mut usize,
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end_cursor: usize,
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) -> Result<bool, ConnectionError> {
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match find(&self.buffer[*line_start_index..end_cursor], &[CR, LF]) {
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// We have found the end of the headers.
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// `line_start_index` points to the end of the most recently found CR LF
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// sequence. That means that if we found the next CR LF sequence at this index,
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// they are, in fact, a CR LF CR LF sequence, which marks the end of the header
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// fields, per HTTP specification.
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Some(0) => {
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// If our current state is `WaitingForHeaders`, it means that we already have
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// a valid request formed from a request line, so it's safe to unwrap.
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let request = self.pending_request.as_mut().unwrap();
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if request.headers.content_length() == 0 {
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self.state = ConnectionState::RequestReady;
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} else {
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if request.headers.expect() {
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// Send expect.
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let expect_response =
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Response::new(request.http_version(), StatusCode::Continue);
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self.response_queue.push_back(expect_response);
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}
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self.body_bytes_to_be_read = request.headers.content_length();
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request.body = Some(Body::new(vec![]));
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self.state = ConnectionState::WaitingForBody;
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}
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// Update the index for the next header.
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*line_start_index += CRLF_LEN;
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Ok(true)
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}
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// We have found the end of a header line.
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Some(relative_line_end_index) => {
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let request = self.pending_request.as_mut().unwrap();
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// The `line_end_index` relative to the whole buffer.
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let line_end_index = relative_line_end_index + *line_start_index;
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// Get the line slice and parse it.
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let line = &self.buffer[*line_start_index..line_end_index];
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match request.headers.parse_header_line(line) {
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// If a header is unsupported we ignore it.
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Ok(_) | Err(RequestError::UnsupportedHeader) => {}
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// If parsing the header invalidates the request, we propagate
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// the error.
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Err(e) => return Err(ConnectionError::ParseError(e)),
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};
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// Update the `line_start_index` to where we finished parsing.
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*line_start_index = line_end_index + CRLF_LEN;
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Ok(true)
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}
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// If we have an incomplete header line.
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None => {
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// If we have parsed BUFFER_SIZE bytes and still haven't found the header
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// line end sequence.
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if *line_start_index == 0 && end_cursor == BUFFER_SIZE {
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// Header line is longer than BUFFER_SIZE bytes, so it is invalid.
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return Err(ConnectionError::ParseError(RequestError::InvalidHeader));
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}
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// Move the incomplete header line from the end of the buffer to
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// the beginning, so that we can append the rest of the line and
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// parse it in the next `try_read` call.
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self.shift_buffer_left(*line_start_index, end_cursor);
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Ok(false)
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}
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}
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}
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// Parses bytes in `buffer` to be put into the request body, if there should be one.
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// Returns `false` if there are no more bytes to be parsed in the buffer.
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fn parse_body(
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&mut self,
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line_start_index: &mut usize,
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end_cursor: usize,
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) -> Result<bool, ConnectionError> {
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// If what we have just read is not enough to complete the request and
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// there are more bytes pertaining to the body of the request.
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if self.body_bytes_to_be_read > end_cursor as i32 - *line_start_index as i32 {
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// Append everything that we read to our current incomplete body and update
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// `body_bytes_to_be_read`.
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self.body_vec
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.extend_from_slice(&self.buffer[*line_start_index..end_cursor]);
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self.body_bytes_to_be_read -= end_cursor as i32 - *line_start_index as i32;
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// Clear the buffer and reset the starting index.
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for i in 0..BUFFER_SIZE {
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self.buffer[i] = 0;
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}
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self.read_cursor = 0;
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return Ok(false);
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}
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// Append only the remaining necessary bytes to the body of the request.
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self.body_vec.extend_from_slice(
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&self.buffer
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[*line_start_index..(*line_start_index + self.body_bytes_to_be_read as usize)],
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);
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*line_start_index += self.body_bytes_to_be_read as usize;
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self.body_bytes_to_be_read = 0;
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let request = self.pending_request.as_mut().unwrap();
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// If there are no more bytes to be read for this request.
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// Assign the body of the request.
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let placeholder: Vec<_> = self
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.body_vec
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.drain(..request.headers.content_length() as usize)
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.collect();
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request.body = Some(Body::new(placeholder));
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// If we read more bytes than we should have into the body of the request.
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if !self.body_vec.is_empty() {
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return Err(ConnectionError::ParseError(RequestError::InvalidRequest));
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}
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self.state = ConnectionState::RequestReady;
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Ok(true)
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}
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/// Tries to write the first available response to the provided stream.
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/// Meant to be used only with non-blocking streams and an `EPOLL` structure.
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/// Should be called whenever an `EPOLLOUT` event is signaled.
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pub fn try_write(&mut self) -> Result<(), ConnectionError> {
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if self.response_buffer.is_none() {
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if let Some(response) = self.response_queue.pop_front() {
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let mut response_buffer_vec: Vec<u8> = Vec::new();
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response
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.write_all(&mut response_buffer_vec)
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.map_err(ConnectionError::StreamError)?;
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self.response_buffer = Some(response_buffer_vec);
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} else {
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return Err(ConnectionError::InvalidWrite);
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}
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}
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let mut response_fully_written = false;
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if let Some(response_buffer_vec) = self.response_buffer.as_mut() {
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let bytes_to_be_written = response_buffer_vec.len();
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match self.stream.write(response_buffer_vec.as_slice()) {
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Ok(0) => {
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return Err(ConnectionError::ConnectionClosed);
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}
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Ok(bytes_written) => {
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if bytes_written != bytes_to_be_written {
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response_buffer_vec.drain(..bytes_written);
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} else {
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response_fully_written = true;
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}
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}
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Err(io_error) => {
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return Err(ConnectionError::StreamError(io_error));
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}
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}
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}
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if response_fully_written {
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self.response_buffer.take();
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}
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Ok(())
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}
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/// Send a response back to the source of a request.
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pub fn enqueue_response(&mut self, response: Response) {
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self.response_queue.push_back(response);
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}
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fn shift_buffer_left(&mut self, line_start_index: usize, end_cursor: usize) {
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// We don't want to shift something that is already at the beginning.
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if line_start_index != 0 {
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// Move the bytes from `line_start_index` to the beginning of the buffer.
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for cursor in 0..(end_cursor - line_start_index) {
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self.buffer[cursor] = self.buffer[line_start_index + cursor];
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}
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// Clear the rest of the buffer.
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for cursor in (end_cursor - line_start_index)..end_cursor {
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self.buffer[cursor] = 0;
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}
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}
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// Update `read_cursor`.
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self.read_cursor = end_cursor - line_start_index;
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}
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/// Returns the first parsed request in the queue.
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pub fn pop_parsed_request(&mut self) -> Option<Request> {
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self.parsed_requests.pop_front()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use common::{Method, Version};
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use std::os::unix::net::UnixStream;
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#[test]
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fn test_try_read_expect() {
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// Test request with `Expect` header.
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let (mut sender, receiver) = UnixStream::pair().unwrap();
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receiver.set_nonblocking(true).expect("Can't modify socket");
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let mut conn = HttpConnection::new(receiver);
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sender
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.write_all(
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b"PATCH http://localhost/home HTTP/1.1\r\n \
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Expect: 100-continue\r\n \
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Content-Length: 26\r\n \
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Transfer-Encoding: chunked\r\n\r\n",
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)
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.unwrap();
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assert!(conn.try_read().is_ok());
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sender.write_all(b"this is not\n\r\na json \nbody").unwrap();
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conn.try_read().unwrap();
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let request = conn.pop_parsed_request().unwrap();
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let expected_request = Request {
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request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
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headers: Headers::new(26, true, true),
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body: Some(Body::new(b"this is not\n\r\na json \nbody".to_vec())),
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};
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assert_eq!(request, expected_request);
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}
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#[test]
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fn test_try_read_long_headers() {
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// Long request headers.
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let (mut sender, receiver) = UnixStream::pair().unwrap();
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receiver.set_nonblocking(true).expect("Can't modify socket");
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let mut conn = HttpConnection::new(receiver);
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sender
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.write_all(
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b"PATCH http://localhost/home HTTP/1.1\r\n \
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Expect: 100-continue\r\n \
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Transfer-Encoding: chunked\r\n",
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)
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.unwrap();
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for i in 0..90 {
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sender.write_all(b"Custom-Header-Testing: 1").unwrap();
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sender.write_all(i.to_string().as_bytes()).unwrap();
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sender.write_all(b"\r\n").unwrap();
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}
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sender
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.write_all(b"Content-Length: 26\r\n\r\nthis is not\n\r\na json \nbody")
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.unwrap();
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assert!(conn.try_read().is_ok());
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assert!(conn.try_read().is_ok());
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assert!(conn.try_read().is_ok());
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let request = conn.pop_parsed_request().unwrap();
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let expected_request = Request {
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request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
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headers: Headers::new(26, true, true),
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body: Some(Body::new(b"this is not\n\r\na json \nbody".to_vec())),
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};
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assert_eq!(request, expected_request);
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}
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#[test]
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fn test_try_read_split_ending() {
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// Long request with '\r\n' on BUFFER_SIZEth and 1025th positions in the request.
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let (mut sender, receiver) = UnixStream::pair().unwrap();
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receiver.set_nonblocking(true).expect("Can't modify socket");
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let mut conn = HttpConnection::new(receiver);
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sender
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.write_all(
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b"PATCH http://localhost/home HTTP/1.1\r\n \
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Expect: 100-continue\r\n \
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Transfer-Encoding: chunked\r\n",
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)
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.unwrap();
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for i in 0..32 {
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sender.write_all(b"Custom-Header-Testing: 1").unwrap();
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sender.write_all(i.to_string().as_bytes()).unwrap();
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sender.write_all(b"\r\n").unwrap();
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}
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sender
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.write_all(b"Head: aaaaa\r\nContent-Length: 26\r\n\r\nthis is not\n\r\na json \nbody")
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.unwrap();
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assert!(conn.try_read().is_ok());
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conn.try_read().unwrap();
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let request = conn.pop_parsed_request().unwrap();
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let expected_request = Request {
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request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
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headers: Headers::new(26, true, true),
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body: Some(Body::new(b"this is not\n\r\na json \nbody".to_vec())),
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};
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assert_eq!(request, expected_request);
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}
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#[test]
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fn test_try_read_invalid_request() {
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// Invalid request.
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let (mut sender, receiver) = UnixStream::pair().unwrap();
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receiver.set_nonblocking(true).expect("Can't modify socket");
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let mut conn = HttpConnection::new(receiver);
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sender
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.write_all(
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b"PATCH http://localhost/home HTTP/1.1\r\n \
|
|
Expect: 100-continue\r\n \
|
|
Transfer-Encoding: chunked\r\n",
|
|
)
|
|
.unwrap();
|
|
|
|
for i in 0..40 {
|
|
sender.write_all(b"Custom-Header-Testing: 1").unwrap();
|
|
sender.write_all(i.to_string().as_bytes()).unwrap();
|
|
sender.write_all(b"\r\n").unwrap();
|
|
}
|
|
sender
|
|
.write_all(b"Content-Length: alpha\r\n\r\nthis is not\n\r\na json \nbody")
|
|
.unwrap();
|
|
assert!(conn.try_read().is_ok());
|
|
let request_error = conn.try_read().unwrap_err();
|
|
assert_eq!(
|
|
request_error,
|
|
ConnectionError::ParseError(RequestError::InvalidHeader)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_long_request_body() {
|
|
// Long request body.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender
|
|
.write_all(
|
|
b"PATCH http://localhost/home HTTP/1.1\r\n \
|
|
Expect: 100-continue\r\n \
|
|
Transfer-Encoding: chunked\r\n \
|
|
Content-Length: 1400\r\n\r\n",
|
|
)
|
|
.unwrap();
|
|
|
|
let mut request_body: Vec<u8> = Vec::with_capacity(1400);
|
|
for _ in 0..100 {
|
|
request_body.write_all(b"This is a test").unwrap();
|
|
}
|
|
sender.write_all(request_body.as_slice()).unwrap();
|
|
assert!(conn.try_read().is_ok());
|
|
conn.try_read().unwrap();
|
|
let request = conn.pop_parsed_request().unwrap();
|
|
let expected_request = Request {
|
|
request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
|
|
headers: Headers::new(1400, true, true),
|
|
body: Some(Body::new(request_body)),
|
|
};
|
|
assert_eq!(request, expected_request);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_large_req_line() {
|
|
// Request line longer than BUFFER_SIZE bytes.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender.write_all(b"PATCH http://localhost/home").unwrap();
|
|
|
|
let mut request_body: Vec<u8> = Vec::with_capacity(1400);
|
|
for _ in 0..200 {
|
|
request_body.write_all(b"/home").unwrap();
|
|
}
|
|
sender.write_all(request_body.as_slice()).unwrap();
|
|
assert_eq!(
|
|
conn.try_read().unwrap_err(),
|
|
ConnectionError::ParseError(RequestError::InvalidRequest)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_large_header_line() {
|
|
// Header line longer than BUFFER_SIZE bytes.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender
|
|
.write_all(b"PATCH http://localhost/home HTTP/1.1\r\nhead: ")
|
|
.unwrap();
|
|
|
|
let mut request_body: Vec<u8> = Vec::with_capacity(1030);
|
|
for _ in 0..86 {
|
|
request_body.write_all(b"abcdefghijkl").unwrap();
|
|
}
|
|
request_body.write_all(b"\r\n\r\n").unwrap();
|
|
sender.write_all(request_body.as_slice()).unwrap();
|
|
assert!(conn.try_read().is_ok());
|
|
assert_eq!(
|
|
conn.try_read().unwrap_err(),
|
|
ConnectionError::ParseError(RequestError::InvalidHeader)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_no_body_request() {
|
|
// Request without body.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender
|
|
.write_all(
|
|
b"PATCH http://localhost/home HTTP/1.1\r\n \
|
|
Expect: 100-continue\r\n \
|
|
Transfer-Encoding: chunked\r\n\r\n",
|
|
)
|
|
.unwrap();
|
|
conn.try_read().unwrap();
|
|
let request = conn.pop_parsed_request().unwrap();
|
|
let expected_request = Request {
|
|
request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
|
|
headers: Headers::new(0, true, true),
|
|
body: None,
|
|
};
|
|
assert_eq!(request, expected_request);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_segmented_req_line() {
|
|
// Segmented request line.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender.write_all(b"PATCH http://local").unwrap();
|
|
assert!(conn.try_read().is_ok());
|
|
|
|
sender.write_all(b"host/home HTTP/1.1\r\n\r\n").unwrap();
|
|
|
|
conn.try_read().unwrap();
|
|
let request = conn.pop_parsed_request().unwrap();
|
|
let expected_request = Request {
|
|
request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
|
|
headers: Headers::new(0, false, false),
|
|
body: None,
|
|
};
|
|
assert_eq!(request, expected_request);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_long_req_line_b2b() {
|
|
// Long request line after another request.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
// Req line 23 + 10*x + 13 = 36 + 10* x 984 free in first try read
|
|
sender
|
|
.write_all(b"PATCH http://localhost/home HTTP/1.1\r\n\r\nPATCH http://localhost/")
|
|
.unwrap();
|
|
|
|
let mut request_line: Vec<u8> = Vec::with_capacity(980);
|
|
for _ in 0..98 {
|
|
request_line.write_all(b"localhost/").unwrap();
|
|
}
|
|
request_line.write_all(b" HTTP/1.1\r\n\r\n").unwrap();
|
|
sender.write_all(request_line.as_slice()).unwrap();
|
|
|
|
conn.try_read().unwrap();
|
|
let request = conn.pop_parsed_request().unwrap();
|
|
let expected_request = Request {
|
|
request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
|
|
headers: Headers::new(0, false, false),
|
|
body: None,
|
|
};
|
|
assert_eq!(request, expected_request);
|
|
|
|
conn.try_read().unwrap();
|
|
let request = conn.pop_parsed_request().unwrap();
|
|
let mut expected_request_as_bytes = Vec::new();
|
|
expected_request_as_bytes
|
|
.write_all(b"http://localhost/")
|
|
.unwrap();
|
|
expected_request_as_bytes.append(request_line.as_mut());
|
|
let expected_request = Request {
|
|
request_line: RequestLine::new(
|
|
Method::Patch,
|
|
std::str::from_utf8(&expected_request_as_bytes[..997]).unwrap(),
|
|
Version::Http11,
|
|
),
|
|
headers: Headers::new(0, false, false),
|
|
body: None,
|
|
};
|
|
assert_eq!(request, expected_request);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_double_request() {
|
|
// Double request in a single read.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender
|
|
.write_all(
|
|
b"PATCH http://localhost/home HTTP/1.1\r\n \
|
|
Transfer-Encoding: chunked\r\n \
|
|
Content-Length: 26\r\n\r\nthis is not\n\r\na json \nbody",
|
|
)
|
|
.unwrap();
|
|
sender
|
|
.write_all(
|
|
b"PUT http://farhost/away HTTP/1.1\r\nContent-Length: 23\r\n\r\nthis is another request",
|
|
)
|
|
.unwrap();
|
|
|
|
let expected_request_first = Request {
|
|
request_line: RequestLine::new(Method::Patch, "http://localhost/home", Version::Http11),
|
|
headers: Headers::new(26, false, true),
|
|
body: Some(Body::new(b"this is not\n\r\na json \nbody".to_vec())),
|
|
};
|
|
|
|
conn.try_read().unwrap();
|
|
let request_first = conn.pop_parsed_request().unwrap();
|
|
let request_second = conn.pop_parsed_request().unwrap();
|
|
|
|
let expected_request_second = Request {
|
|
request_line: RequestLine::new(Method::Put, "http://farhost/away", Version::Http11),
|
|
headers: Headers::new(23, false, false),
|
|
body: Some(Body::new(b"this is another request".to_vec())),
|
|
};
|
|
assert_eq!(request_first, expected_request_first);
|
|
assert_eq!(request_second, expected_request_second);
|
|
}
|
|
|
|
#[test]
|
|
fn test_try_read_connection_closed() {
|
|
// Connection abruptly closed.
|
|
let (mut sender, receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(receiver);
|
|
sender
|
|
.write_all(
|
|
b"PATCH http://localhost/home HTTP/1.1\r\n \
|
|
Transfer-Encoding: chunked\r\n \
|
|
Content-Len",
|
|
)
|
|
.unwrap();
|
|
|
|
conn.try_read().unwrap();
|
|
sender.shutdown(std::net::Shutdown::Both).unwrap();
|
|
|
|
assert_eq!(
|
|
conn.try_read().unwrap_err(),
|
|
ConnectionError::ConnectionClosed
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_enqueue_response() {
|
|
// Response without body.
|
|
let (sender, mut receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(sender);
|
|
|
|
let response = Response::new(Version::Http11, StatusCode::OK);
|
|
let mut expected_response: Vec<u8> = vec![];
|
|
response.write_all(&mut expected_response).unwrap();
|
|
|
|
conn.enqueue_response(response);
|
|
assert!(conn.try_write().is_ok());
|
|
|
|
let mut response_buffer = vec![0u8; expected_response.len()];
|
|
receiver.read_exact(&mut response_buffer).unwrap();
|
|
assert_eq!(response_buffer, expected_response);
|
|
|
|
// Response with body.
|
|
let (sender, mut receiver) = UnixStream::pair().unwrap();
|
|
receiver.set_nonblocking(true).expect("Can't modify socket");
|
|
let mut conn = HttpConnection::new(sender);
|
|
let mut response = Response::new(Version::Http11, StatusCode::OK);
|
|
let mut body: Vec<u8> = vec![];
|
|
body.write_all(br#"{ "json": "body", "hello": "world" }"#)
|
|
.unwrap();
|
|
response.set_body(Body::new(body));
|
|
let mut expected_response: Vec<u8> = vec![];
|
|
response.write_all(&mut expected_response).unwrap();
|
|
|
|
conn.enqueue_response(response);
|
|
assert!(conn.try_write().is_ok());
|
|
|
|
let mut response_buffer = vec![0u8; expected_response.len()];
|
|
receiver.read_exact(&mut response_buffer).unwrap();
|
|
assert_eq!(response_buffer, expected_response);
|
|
}
|
|
}
|