Code - github/jsdom/whatwg-mimetype
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.gf.qytechs.cn/scripts/486089/1320060/whatwg-mimetype-umd.js
// ==UserScript==
// @name whatwg-mimetype-umd
// @namespace flomk.userscripts
// @version 4.0.0
// @description Code - github/jsdom/whatwg-mimetype
// @match *
// @license MIT
// ==/UserScript==
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.whatwgMimetype = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
"use strict";
const {
asciiLowercase,
solelyContainsHTTPTokenCodePoints,
soleyContainsHTTPQuotedStringTokenCodePoints
} = require("./utils.js");
module.exports = class MIMETypeParameters {
constructor(map) {
this._map = map;
}
get size() {
return this._map.size;
}
get(name) {
name = asciiLowercase(String(name));
return this._map.get(name);
}
has(name) {
name = asciiLowercase(String(name));
return this._map.has(name);
}
set(name, value) {
name = asciiLowercase(String(name));
value = String(value);
if (!solelyContainsHTTPTokenCodePoints(name)) {
throw new Error(`Invalid MIME type parameter name "${name}": only HTTP token code points are valid.`);
}
if (!soleyContainsHTTPQuotedStringTokenCodePoints(value)) {
throw new Error(`Invalid MIME type parameter value "${value}": only HTTP quoted-string token code points are ` +
`valid.`);
}
return this._map.set(name, value);
}
clear() {
this._map.clear();
}
delete(name) {
name = asciiLowercase(String(name));
return this._map.delete(name);
}
forEach(callbackFn, thisArg) {
this._map.forEach(callbackFn, thisArg);
}
keys() {
return this._map.keys();
}
values() {
return this._map.values();
}
entries() {
return this._map.entries();
}
[Symbol.iterator]() {
return this._map[Symbol.iterator]();
}
};
},{"./utils.js":4}],2:[function(require,module,exports){
"use strict";
const {
removeLeadingAndTrailingHTTPWhitespace,
removeTrailingHTTPWhitespace,
isHTTPWhitespaceChar,
solelyContainsHTTPTokenCodePoints,
soleyContainsHTTPQuotedStringTokenCodePoints,
asciiLowercase,
collectAnHTTPQuotedString
} = require("./utils.js");
module.exports = input => {
input = removeLeadingAndTrailingHTTPWhitespace(input);
let position = 0;
let type = "";
while (position < input.length && input[position] !== "/") {
type += input[position];
++position;
}
if (type.length === 0 || !solelyContainsHTTPTokenCodePoints(type)) {
return null;
}
if (position >= input.length) {
return null;
}
// Skips past "/"
++position;
let subtype = "";
while (position < input.length && input[position] !== ";") {
subtype += input[position];
++position;
}
subtype = removeTrailingHTTPWhitespace(subtype);
if (subtype.length === 0 || !solelyContainsHTTPTokenCodePoints(subtype)) {
return null;
}
const mimeType = {
type: asciiLowercase(type),
subtype: asciiLowercase(subtype),
parameters: new Map()
};
while (position < input.length) {
// Skip past ";"
++position;
while (isHTTPWhitespaceChar(input[position])) {
++position;
}
let parameterName = "";
while (position < input.length && input[position] !== ";" && input[position] !== "=") {
parameterName += input[position];
++position;
}
parameterName = asciiLowercase(parameterName);
if (position < input.length) {
if (input[position] === ";") {
continue;
}
// Skip past "="
++position;
}
let parameterValue = null;
if (input[position] === "\"") {
[parameterValue, position] = collectAnHTTPQuotedString(input, position);
while (position < input.length && input[position] !== ";") {
++position;
}
} else {
parameterValue = "";
while (position < input.length && input[position] !== ";") {
parameterValue += input[position];
++position;
}
parameterValue = removeTrailingHTTPWhitespace(parameterValue);
if (parameterValue === "") {
continue;
}
}
if (parameterName.length > 0 &&
solelyContainsHTTPTokenCodePoints(parameterName) &&
soleyContainsHTTPQuotedStringTokenCodePoints(parameterValue) &&
!mimeType.parameters.has(parameterName)) {
mimeType.parameters.set(parameterName, parameterValue);
}
}
return mimeType;
};
},{"./utils.js":4}],3:[function(require,module,exports){
"use strict";
const { solelyContainsHTTPTokenCodePoints } = require("./utils.js");
module.exports = mimeType => {
let serialization = `${mimeType.type}/${mimeType.subtype}`;
if (mimeType.parameters.size === 0) {
return serialization;
}
for (let [name, value] of mimeType.parameters) {
serialization += ";";
serialization += name;
serialization += "=";
if (!solelyContainsHTTPTokenCodePoints(value) || value.length === 0) {
value = value.replace(/(["\\])/ug, "\\$1");
value = `"${value}"`;
}
serialization += value;
}
return serialization;
};
},{"./utils.js":4}],4:[function(require,module,exports){
"use strict";
exports.removeLeadingAndTrailingHTTPWhitespace = string => {
return string.replace(/^[ \t\n\r]+/u, "").replace(/[ \t\n\r]+$/u, "");
};
exports.removeTrailingHTTPWhitespace = string => {
return string.replace(/[ \t\n\r]+$/u, "");
};
exports.isHTTPWhitespaceChar = char => {
return char === " " || char === "\t" || char === "\n" || char === "\r";
};
exports.solelyContainsHTTPTokenCodePoints = string => {
return /^[-!#$%&'*+.^_`|~A-Za-z0-9]*$/u.test(string);
};
exports.soleyContainsHTTPQuotedStringTokenCodePoints = string => {
return /^[\t\u0020-\u007E\u0080-\u00FF]*$/u.test(string);
};
exports.asciiLowercase = string => {
return string.replace(/[A-Z]/ug, l => l.toLowerCase());
};
// This variant only implements it with the extract-value flag set.
exports.collectAnHTTPQuotedString = (input, position) => {
let value = "";
position++;
while (true) {
while (position < input.length && input[position] !== "\"" && input[position] !== "\\") {
value += input[position];
++position;
}
if (position >= input.length) {
break;
}
const quoteOrBackslash = input[position];
++position;
if (quoteOrBackslash === "\\") {
if (position >= input.length) {
value += "\\";
break;
}
value += input[position];
++position;
} else {
break;
}
}
return [value, position];
};
},{}],"whatwg-mimetype":[function(require,module,exports){
"use strict";
const MIMETypeParameters = require("./mime-type-parameters.js");
const parse = require("./parser.js");
const serialize = require("./serializer.js");
const {
asciiLowercase,
solelyContainsHTTPTokenCodePoints
} = require("./utils.js");
module.exports = class MIMEType {
constructor(string) {
string = String(string);
const result = parse(string);
if (result === null) {
throw new Error(`Could not parse MIME type string "${string}"`);
}
this._type = result.type;
this._subtype = result.subtype;
this._parameters = new MIMETypeParameters(result.parameters);
}
static parse(string) {
try {
return new this(string);
} catch (e) {
return null;
}
}
get essence() {
return `${this.type}/${this.subtype}`;
}
get type() {
return this._type;
}
set type(value) {
value = asciiLowercase(String(value));
if (value.length === 0) {
throw new Error("Invalid type: must be a non-empty string");
}
if (!solelyContainsHTTPTokenCodePoints(value)) {
throw new Error(`Invalid type ${value}: must contain only HTTP token code points`);
}
this._type = value;
}
get subtype() {
return this._subtype;
}
set subtype(value) {
value = asciiLowercase(String(value));
if (value.length === 0) {
throw new Error("Invalid subtype: must be a non-empty string");
}
if (!solelyContainsHTTPTokenCodePoints(value)) {
throw new Error(`Invalid subtype ${value}: must contain only HTTP token code points`);
}
this._subtype = value;
}
get parameters() {
return this._parameters;
}
toString() {
// The serialize function works on both "MIME type records" (i.e. the results of parse) and on this class, since
// this class's interface is identical.
return serialize(this);
}
isJavaScript({ prohibitParameters = false } = {}) {
switch (this._type) {
case "text": {
switch (this._subtype) {
case "ecmascript":
case "javascript":
case "javascript1.0":
case "javascript1.1":
case "javascript1.2":
case "javascript1.3":
case "javascript1.4":
case "javascript1.5":
case "jscript":
case "livescript":
case "x-ecmascript":
case "x-javascript": {
return !prohibitParameters || this._parameters.size === 0;
}
default: {
return false;
}
}
}
case "application": {
switch (this._subtype) {
case "ecmascript":
case "javascript":
case "x-ecmascript":
case "x-javascript": {
return !prohibitParameters || this._parameters.size === 0;
}
default: {
return false;
}
}
}
default: {
return false;
}
}
}
isXML() {
return (this._subtype === "xml" && (this._type === "text" || this._type === "application")) ||
this._subtype.endsWith("+xml");
}
isHTML() {
return this._subtype === "html" && this._type === "text";
}
};
},{"./mime-type-parameters.js":1,"./parser.js":2,"./serializer.js":3,"./utils.js":4}]},{},[])("whatwg-mimetype")
});