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132 lines
3.0 KiB
TypeScript
132 lines
3.0 KiB
TypeScript
// Loaded from https://deno.land/x/status@0.1.0/status.ts
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// Copyright 2020 Filippo Rossi. All rights reserved. MIT license.
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import * as maps from "./maps.ts";
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import * as codes from "./codes.ts";
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/**
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* Types.
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* @private
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*/
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export type Status =
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| string
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| number;
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/**
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* Module exports.
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* @public
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*/
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/**
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* Status code array
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*/
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status.codes = codes.ALL;
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/**
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* Status code to message map
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*/
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status.message = maps.STATUS_MESSAGES;
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/**
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* Status message (UPPER_CASE) to code map
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*/
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status.code = maps.STATUS_CODES;
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/**
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* Status codes for redirects.
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*/
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status.redirect = {
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[codes.MULTIPLE_CHOICES]: true,
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[codes.MOVED_PERMANENTLY]: true,
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[codes.MOVED_TEMPORARILY]: true,
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[codes.SEE_OTHER]: true,
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[codes.USE_PROXY]: true,
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[codes.TEMPORARY_REDIRECT]: true,
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[codes.PERMANENT_REDIRECT]: true,
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};
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/**
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* Status codes for empty bodies.
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*/
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status.empty = {
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[codes.NO_CONTENT]: true,
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[codes.RESET_CONTENT]: true,
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[codes.NOT_MODIFIED]: true,
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};
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/**
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* Status codes for when you should retry the request.
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*/
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status.retry = {
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[codes.BAD_GATEWAY]: true,
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[codes.SERVICE_UNAVAILABLE]: true,
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[codes.GATEWAY_TIMEOUT]: true,
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};
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/**
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* Get the status code. But pretty printed.
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*
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* Given a number, this will throw if it is not a known status
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* code, otherwise the code will be returned. Given a string,
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* the string will be parsed for a number and return the code
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* if valid, otherwise will lookup the code assuming this is
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* the status message.
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*
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* Status codes remain the same as status(arg)
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* Status messages are pretty printed:
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* 'INTERNAL_SERVER_ERROR' -> 'Internal Server Error'
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*
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* @param {string|number} code
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* @returns {string|number}
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* @public
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*/
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status.pretty = function pretty(code: Status): Status {
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const res = status(code);
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if (typeof res === "string") {
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return res.replace(/_/g, " ")
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.toLowerCase()
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.split(" ")
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.map((s) => s.charAt(0).toUpperCase() + s.substring(1))
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.join(" ");
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}
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return res;
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};
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/**
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* Get the status code.
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*
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* Given a number, this will throw if it is not a known status
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* code, otherwise the code will be returned. Given a string,
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* the string will be parsed for a number and return the code
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* if valid, otherwise will lookup the code assuming this is
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* the status message.
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*
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* @param {string|number} code
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* @returns {string|number}
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* @public
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*/
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export function status(code: Status): Status {
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if (typeof code === "number") {
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if (!status.message[code]) throw new Error("invalid status code: " + code);
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return status.message[code];
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}
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if (typeof code !== "string") {
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throw new TypeError("code must be a number or string");
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}
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var n = parseInt(code, 10);
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if (!isNaN(n)) {
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if (!status.message[n]) throw new Error("invalid status code: " + n);
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return status.message[n];
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}
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// remove prettyness 'inTerNal SeRvEr ErrRor' => 'INTERNAL_SERVER_ERROR'
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code = code.trim().replace(/ /g, "_").toUpperCase();
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n = status.code[code];
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if (!n) throw new Error('invalid status message: "' + code + '"');
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return n;
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}
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