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| 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 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | 2x 2x 7x 10x 10x 10x 2x 8x 8x 2x 6x 6x 6x 2x 17x 3x 3x 3x 2x 6x 6x 1x 5x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { Authentication } from "estuary-rpc";
import { IncomingMessage } from "http";
import { getUrl } from "./middleware";
/**
* @param request IncomingMessage from the client
* @returns a Record<string, string> containing all cookie name/value pairs passed in the request
* @group Server
*/
export function getCookies(request: IncomingMessage): Record<string, string> {
return (request.headers?.cookie?.split?.(`;`) ?? []).reduce(
(cookies, cookie) => {
let [name, ...rest] = cookie.split(`=`);
name = name?.trim();
if (!name) {
return cookies;
}
const value = rest.join(`=`).trim();
if (!value) {
return cookies;
}
try {
cookies[name] = decodeURIComponent(value);
} catch {
cookies[name] = value;
}
return cookies;
},
{}
);
}
/**
* Reads the authentication a request carries, as its endpoint's metadata (or the server's default) describes it:
* the token of a bearer authentication, the value of a cookie's, and so on. Undefined if the endpoint asks for none.
* @group Server
*/
export function readAuthentication(
incoming: IncomingMessage,
metaAuth?: Authentication
): Authentication | undefined {
if (!metaAuth) return undefined;
switch (metaAuth.type) {
case "basic": {
const [username, ...password] = Buffer.from(
incoming.headers["authorization"]?.split?.("Basic ")?.[1] ?? "",
"base64"
)
.toString()
.split(":");
return { ...metaAuth, username, password: password.join(":") };
}
case "bearer":
return {
...metaAuth,
token: incoming.headers["authorization"]?.split("Bearer ")?.[1] ?? "",
};
case "header": {
const header = metaAuth.keyPair[0];
const value = incoming.headers[header.toLowerCase()];
return {
...metaAuth,
keyPair: [header, (Array.isArray(value) ? value[0] : value) ?? ""],
};
}
case "query": {
const query = metaAuth.keyPair[0];
return {
...metaAuth,
keyPair: [query, getUrl(incoming)?.searchParams?.get?.(query) ?? ""],
};
}
case "cookie": {
const cookie = metaAuth.keyPair[0];
return { ...metaAuth, keyPair: [cookie, getCookies(incoming)?.[cookie] ?? ""] };
}
}
}
/**
* Checks authentication of a message from the client
* @param incoming IncomingMessage from the 'http' server
* @param metaAuth Description of the authentication scheme created in your API Meta definition. See
* {@linke estuary-rpc!Authentication} for specific types of authentication supported
* @param authenticate Method defined in {@link ServerOpts} that should be implemented to actually check the
* authentication against whatever database/backend/authorization scheme you have
* @returns Pair of [boolean, Authentication | undefined], where the boolean is whether the user is authenticatd,
* and the Authentication is the parsed authentication information if extractable
* @group Server
*/
export function isAuthenticated(
incoming: IncomingMessage,
metaAuth?: Authentication,
authenticate?: (authentication: Authentication) => boolean
): [boolean, Authentication | undefined] {
let auth: Authentication | undefined = undefined;
if (!metaAuth || !authenticate) {
return [true, auth];
}
switch (metaAuth.type) {
case "basic":
const [username, password] = Buffer.from(
incoming.headers["authorization"]?.split?.("Basic ")?.[1] ?? "",
"base64"
)
.toString()
.split(":");
auth = { ...metaAuth, username, password: password ?? "" };
return [authenticate(auth), auth];
case "bearer":
const token =
incoming.headers["authorization"]?.split("Bearer ")?.[1] ?? "";
auth = { ...metaAuth, token };
return [authenticate(auth), auth];
case "header":
const header = metaAuth.keyPair[0];
const headerValue = incoming.headers[header]?.[0] ?? "";
auth = { ...metaAuth, keyPair: [header, headerValue] };
return [authenticate(auth), auth];
case "query":
const query = metaAuth.keyPair[0];
const queryValue = getUrl(incoming)?.searchParams?.get?.(query) ?? "";
auth = { ...metaAuth, keyPair: [query, queryValue] };
return [authenticate(auth), auth];
case "cookie":
const cookie = metaAuth.keyPair[0];
const cookieValue = getCookies(incoming)?.[cookie] ?? "";
auth = { ...metaAuth, keyPair: [cookie, cookieValue] };
return [authenticate(auth), auth];
}
}
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