@letticdo/bare-server-node-tomphttp
Version:
The Bare Server implementation in NodeJS.
60 lines • 2.01 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.joinHeaders = exports.splitHeaders = void 0;
const BareServer_js_1 = require("./BareServer.js");
const headers_polyfill_1 = require("headers-polyfill");
const MAX_HEADER_VALUE = 3072;
/**
*
* Splits headers according to spec
* @param headers
* @returns Split headers
*/
function splitHeaders(headers) {
const output = new headers_polyfill_1.Headers(headers);
if (headers.has('x-bare-headers')) {
const value = headers.get('x-bare-headers');
if (value.length > MAX_HEADER_VALUE) {
output.delete('x-bare-headers');
let split = 0;
for (let i = 0; i < value.length; i += MAX_HEADER_VALUE) {
const part = value.slice(i, i + MAX_HEADER_VALUE);
const id = split++;
output.set(`x-bare-headers-${id}`, `;${part}`);
}
}
}
return output;
}
exports.splitHeaders = splitHeaders;
/**
* Joins headers according to spec
* @param headers
* @returns Joined headers
*/
function joinHeaders(headers) {
const output = new headers_polyfill_1.Headers(headers);
const prefix = 'x-bare-headers';
if (headers.has(`${prefix}-0`)) {
const join = [];
for (const [header, value] of headers) {
if (!header.startsWith(prefix)) {
continue;
}
if (!value.startsWith(';')) {
throw new BareServer_js_1.BareError(400, {
code: 'INVALID_BARE_HEADER',
id: `request.headers.${header}`,
message: `Value didn't begin with semi-colon.`,
});
}
const id = parseInt(header.slice(prefix.length + 1));
join[id] = value.slice(1);
output.delete(header);
}
output.set(prefix, join.join(''));
}
return output;
}
exports.joinHeaders = joinHeaders;
//# sourceMappingURL=splitHeaderUtil.js.map