79 lines
2.0 KiB
V
79 lines
2.0 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license
|
|
// that can be found in the LICENSE file.
|
|
module http
|
|
|
|
import net.http.chunked
|
|
|
|
// Response represents the result of the request
|
|
pub struct Response {
|
|
pub mut:
|
|
text string
|
|
header Header
|
|
cookies map[string]string
|
|
status_code int
|
|
version Version
|
|
}
|
|
|
|
fn (mut resp Response) free() {
|
|
unsafe { resp.header.data.free() }
|
|
}
|
|
|
|
// Formats resp to bytes suitable for HTTP response transmission
|
|
pub fn (resp Response) bytes() []byte {
|
|
// TODO: build []byte directly; this uses two allocations
|
|
// TODO: cookies
|
|
return ('$resp.version $resp.status_code ${status_from_int(resp.status_code).str()}\r\n' + '${resp.header.render(
|
|
version: resp.version
|
|
)}\r\n' + '$resp.text').bytes()
|
|
}
|
|
|
|
// Parse a raw HTTP response into a Response object
|
|
pub fn parse_response(resp string) Response {
|
|
mut header := new_header()
|
|
// TODO: Cookie data type
|
|
mut cookies := map[string]string{}
|
|
first_header := resp.all_before('\n')
|
|
mut status_code := 0
|
|
if first_header.contains('HTTP/') {
|
|
val := first_header.find_between(' ', ' ')
|
|
status_code = val.int()
|
|
}
|
|
mut text := ''
|
|
// Build resp header map and separate the body
|
|
mut nl_pos := 3
|
|
mut i := 1
|
|
for {
|
|
old_pos := nl_pos
|
|
nl_pos = resp.index_after('\n', nl_pos + 1)
|
|
if nl_pos == -1 {
|
|
break
|
|
}
|
|
h := resp[old_pos + 1..nl_pos]
|
|
// End of headers
|
|
if h.len <= 1 {
|
|
text = resp[nl_pos + 1..]
|
|
break
|
|
}
|
|
i++
|
|
pos := h.index(':') or { continue }
|
|
mut key := h[..pos]
|
|
val := h[pos + 2..].trim_space()
|
|
header.add_custom(key, val) or { eprintln('$err; skipping header') }
|
|
}
|
|
// set cookies
|
|
for cookie in header.values(.set_cookie) {
|
|
parts := cookie.split_nth('=', 2)
|
|
cookies[parts[0]] = parts[1]
|
|
}
|
|
if header.get(.transfer_encoding) or { '' } == 'chunked' {
|
|
text = chunked.decode(text)
|
|
}
|
|
return Response{
|
|
status_code: status_code
|
|
header: header
|
|
cookies: cookies
|
|
text: text
|
|
}
|
|
}
|