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c592d77 | 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 | "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "autoImplementMethods", {
enumerable: true,
get: function() {
return autoImplementMethods;
}
});
const _http = require("../../../web/http");
const AUTOMATIC_ROUTE_METHODS = [
'HEAD',
'OPTIONS'
];
function handleMethodNotAllowedResponse() {
return new Response(null, {
status: 405
});
}
function autoImplementMethods(handlers) {
// Loop through all the HTTP methods to create the initial methods object.
// Each of the methods will be set to the 405 response handler.
const methods = _http.HTTP_METHODS.reduce((acc, method)=>({
...acc,
// If the userland module implements the method, then use it. Otherwise,
// use the 405 response handler.
[method]: handlers[method] ?? handleMethodNotAllowedResponse
}), {});
// Get all the methods that could be automatically implemented that were not
// implemented by the userland module.
const implemented = new Set(_http.HTTP_METHODS.filter((method)=>handlers[method]));
const missing = AUTOMATIC_ROUTE_METHODS.filter((method)=>!implemented.has(method));
// Loop over the missing methods to automatically implement them if we can.
for (const method of missing){
// If the userland module doesn't implement the HEAD method, then
// we'll automatically implement it by calling the GET method (if it
// exists).
if (method === 'HEAD') {
if (handlers.GET) {
// Implement the HEAD method by calling the GET method.
methods.HEAD = handlers.GET;
// Mark it as implemented.
implemented.add('HEAD');
}
continue;
}
// If OPTIONS is not provided then implement it.
if (method === 'OPTIONS') {
// TODO: check if HEAD is implemented, if so, use it to add more headers
// Get all the methods that were implemented by the userland module.
const allow = [
'OPTIONS',
...implemented
];
// If the list of methods doesn't include HEAD, but it includes GET, then
// add HEAD as it's automatically implemented.
if (!implemented.has('HEAD') && implemented.has('GET')) {
allow.push('HEAD');
}
// Sort and join the list with commas to create the `Allow` header. See:
// https://httpwg.org/specs/rfc9110.html#field.allow
const headers = {
Allow: allow.sort().join(', ')
};
// Implement the OPTIONS method by returning a 204 response with the
// `Allow` header.
methods.OPTIONS = ()=>new Response(null, {
status: 204,
headers
});
// Mark this method as implemented.
implemented.add('OPTIONS');
continue;
}
throw Object.defineProperty(new Error(`Invariant: should handle all automatic implementable methods, got method: ${method}`), "__NEXT_ERROR_CODE", {
value: "E211",
enumerable: false,
configurable: true
});
}
return methods;
}
//# sourceMappingURL=auto-implement-methods.js.map |