1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
import { listen, Conn } from "deno";
import { BufReader, BufState } from "./bufio.ts";
import { TextProtoReader } from "./textproto.ts";
import { Headers } from "./headers.ts";
export async function* serve(addr: string) {
const listener = listen("tcp", addr);
while (true) {
const c = await listener.accept();
yield* serveConn(c);
}
listener.close();
}
export async function* serveConn(c: Conn) {
let bufr = new BufReader(c);
try {
while (true) {
const req = await readRequest(bufr);
yield req;
}
} finally {
c.close();
}
}
interface Response {
status?: number;
body: string;
}
class ServerRequest {
url: string;
method: string;
proto: string;
respond(r: Response = { status: 200 }): Promise<void> {
throw Error("not implemented");
}
}
async function readRequest(b: BufReader): Promise<ServerRequest> {
const tp = new TextProtoReader(b);
const req = new ServerRequest();
// First line: GET /index.html HTTP/1.0
let s: string;
let err: BufState;
[s, err] = await tp.readLine();
const { method, url, proto } = parseRequestLine(s);
req.method = method;
req.url = url;
req.proto = proto;
let headers: Headers;
[headers, err] = await tp.readMIMEHeader();
return req;
}
// Returns [method, url, proto]
function parseRequestLine(
line: string
): { method: string; url: string; proto: string } {
let [method, url, proto] = line.split(" ", 3);
return { method, url, proto };
}
|
