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import {
AssertionError,
assertThrowsAsync,
assertEquals
} from "../testing/asserts.ts";
import { bodyReader, writeTrailers, readTrailers } from "./io.ts";
import { encode, decode } from "../strings/mod.ts";
import { BufReader } from "../io/bufio.ts";
import { chunkedBodyReader } from "./io.ts";
const { test, Buffer } = Deno;
test("bodyReader", async () => {
const text = "Hello, Deno";
const r = bodyReader(text.length, new BufReader(new Buffer(encode(text))));
assertEquals(decode(await Deno.readAll(r)), text);
});
function chunkify(n: number, char: string): string {
const v = Array.from({ length: n })
.map(() => `${char}`)
.join("");
return `${n.toString(16)}\r\n${v}\r\n`;
}
test("chunkedBodyReader", async () => {
const body = [
chunkify(3, "a"),
chunkify(5, "b"),
chunkify(11, "c"),
chunkify(22, "d"),
chunkify(0, "")
].join("");
const h = new Headers();
const r = chunkedBodyReader(h, new BufReader(new Buffer(encode(body))));
let result: number | Deno.EOF;
// Use small buffer as some chunks exceed buffer size
const buf = new Uint8Array(5);
const dest = new Buffer();
while ((result = await r.read(buf)) !== Deno.EOF) {
const len = Math.min(buf.byteLength, result);
await dest.write(buf.subarray(0, len));
}
const exp = "aaabbbbbcccccccccccdddddddddddddddddddddd";
assertEquals(dest.toString(), exp);
});
test("chunkedBodyReader with trailers", async () => {
const body = [
chunkify(3, "a"),
chunkify(5, "b"),
chunkify(11, "c"),
chunkify(22, "d"),
chunkify(0, ""),
"deno: land\r\n",
"node: js\r\n",
"\r\n"
].join("");
const h = new Headers({
trailer: "deno,node"
});
const r = chunkedBodyReader(h, new BufReader(new Buffer(encode(body))));
assertEquals(h.has("trailer"), true);
assertEquals(h.has("deno"), false);
assertEquals(h.has("node"), false);
const act = decode(await Deno.readAll(r));
const exp = "aaabbbbbcccccccccccdddddddddddddddddddddd";
assertEquals(act, exp);
assertEquals(h.has("trailer"), false);
assertEquals(h.get("deno"), "land");
assertEquals(h.get("node"), "js");
});
test("readTrailers", async () => {
const h = new Headers({
trailer: "deno,node"
});
const trailer = ["deno: land", "node: js", "", ""].join("\r\n");
await readTrailers(h, new BufReader(new Buffer(encode(trailer))));
assertEquals(h.has("trailer"), false);
assertEquals(h.get("deno"), "land");
assertEquals(h.get("node"), "js");
});
test("readTrailer should throw if undeclared headers found in trailer", async () => {
const patterns = [
["deno,node", "deno: land\r\nnode: js\r\ngo: lang\r\n\r\n"],
["deno", "node: js\r\n\r\n"],
["deno", "node:js\r\ngo: lang\r\n\r\n"]
];
for (const [header, trailer] of patterns) {
const h = new Headers({
trailer: header
});
await assertThrowsAsync(
async () => {
await readTrailers(h, new BufReader(new Buffer(encode(trailer))));
},
Error,
"Undeclared trailer field"
);
}
});
test("readTrailer should throw if trailer contains prohibited fields", async () => {
for (const f of ["content-length", "trailer", "transfer-encoding"]) {
const h = new Headers({
trailer: f
});
await assertThrowsAsync(
async () => {
await readTrailers(h, new BufReader(new Buffer()));
},
Error,
"Prohibited field for trailer"
);
}
});
test("writeTrailer", async () => {
const w = new Buffer();
await writeTrailers(
w,
new Headers({ "transfer-encoding": "chunked", trailer: "deno,node" }),
new Headers({ deno: "land", node: "js" })
);
assertEquals(w.toString(), "deno: land\r\nnode: js\r\n\r\n");
});
test("writeTrailer should throw", async () => {
const w = new Buffer();
await assertThrowsAsync(
() => {
return writeTrailers(w, new Headers(), new Headers());
},
Error,
'must have "trailer"'
);
await assertThrowsAsync(
() => {
return writeTrailers(w, new Headers({ trailer: "deno" }), new Headers());
},
Error,
"only allowed"
);
for (const f of ["content-length", "trailer", "transfer-encoding"]) {
await assertThrowsAsync(
() => {
return writeTrailers(
w,
new Headers({ "transfer-encoding": "chunked", trailer: f }),
new Headers({ [f]: "1" })
);
},
AssertionError,
"prohibited"
);
}
await assertThrowsAsync(
() => {
return writeTrailers(
w,
new Headers({ "transfer-encoding": "chunked", trailer: "deno" }),
new Headers({ node: "js" })
);
},
AssertionError,
"Not trailer"
);
});
|
