1244 lines
30 KiB
JavaScript
1244 lines
30 KiB
JavaScript
"use strict";
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const tr46 = require("tr46");
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const infra = require("./infra");
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const { utf8DecodeWithoutBOM } = require("./encoding");
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const { percentDecodeString, utf8PercentEncodeCodePoint, utf8PercentEncodeString, isC0ControlPercentEncode,
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isFragmentPercentEncode, isQueryPercentEncode, isSpecialQueryPercentEncode, isPathPercentEncode,
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isUserinfoPercentEncode } = require("./percent-encoding");
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function p(char) {
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return char.codePointAt(0);
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}
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const specialSchemes = {
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ftp: 21,
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file: null,
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http: 80,
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https: 443,
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ws: 80,
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wss: 443
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};
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const failure = Symbol("failure");
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function countSymbols(str) {
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return [...str].length;
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}
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function at(input, idx) {
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const c = input[idx];
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return isNaN(c) ? undefined : String.fromCodePoint(c);
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}
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function isSingleDot(buffer) {
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return buffer === "." || buffer.toLowerCase() === "%2e";
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}
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function isDoubleDot(buffer) {
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buffer = buffer.toLowerCase();
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return buffer === ".." || buffer === "%2e." || buffer === ".%2e" || buffer === "%2e%2e";
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}
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function isWindowsDriveLetterCodePoints(cp1, cp2) {
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return infra.isASCIIAlpha(cp1) && (cp2 === p(":") || cp2 === p("|"));
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}
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function isWindowsDriveLetterString(string) {
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return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && (string[1] === ":" || string[1] === "|");
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}
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function isNormalizedWindowsDriveLetterString(string) {
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return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && string[1] === ":";
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}
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function containsForbiddenHostCodePoint(string) {
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return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|%|\/|:|<|>|\?|@|\[|\\|\]|\^|\|/u) !== -1;
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}
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function containsForbiddenHostCodePointExcludingPercent(string) {
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return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|<|>|\?|@|\[|\\|\]|\^|\|/u) !== -1;
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}
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function isSpecialScheme(scheme) {
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return specialSchemes[scheme] !== undefined;
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}
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function isSpecial(url) {
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return isSpecialScheme(url.scheme);
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}
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function isNotSpecial(url) {
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return !isSpecialScheme(url.scheme);
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}
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function defaultPort(scheme) {
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return specialSchemes[scheme];
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}
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function parseIPv4Number(input) {
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if (input === "") {
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return failure;
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}
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let R = 10;
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if (input.length >= 2 && input.charAt(0) === "0" && input.charAt(1).toLowerCase() === "x") {
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input = input.substring(2);
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R = 16;
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} else if (input.length >= 2 && input.charAt(0) === "0") {
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input = input.substring(1);
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R = 8;
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}
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if (input === "") {
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return 0;
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}
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let regex = /[^0-7]/u;
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if (R === 10) {
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regex = /[^0-9]/u;
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}
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if (R === 16) {
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regex = /[^0-9A-Fa-f]/u;
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}
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if (regex.test(input)) {
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return failure;
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}
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return parseInt(input, R);
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}
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function parseIPv4(input) {
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const parts = input.split(".");
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if (parts[parts.length - 1] === "") {
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if (parts.length > 1) {
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parts.pop();
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}
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}
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if (parts.length > 4) {
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return failure;
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}
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const numbers = [];
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for (const part of parts) {
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const n = parseIPv4Number(part);
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if (n === failure) {
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return failure;
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}
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numbers.push(n);
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}
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for (let i = 0; i < numbers.length - 1; ++i) {
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if (numbers[i] > 255) {
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return failure;
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}
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}
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if (numbers[numbers.length - 1] >= 256 ** (5 - numbers.length)) {
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return failure;
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}
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let ipv4 = numbers.pop();
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let counter = 0;
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for (const n of numbers) {
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ipv4 += n * 256 ** (3 - counter);
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++counter;
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}
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return ipv4;
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}
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function serializeIPv4(address) {
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let output = "";
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let n = address;
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for (let i = 1; i <= 4; ++i) {
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output = String(n % 256) + output;
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if (i !== 4) {
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output = `.${output}`;
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}
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n = Math.floor(n / 256);
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}
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return output;
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}
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function parseIPv6(input) {
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const address = [0, 0, 0, 0, 0, 0, 0, 0];
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let pieceIndex = 0;
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let compress = null;
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let pointer = 0;
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input = Array.from(input, c => c.codePointAt(0));
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if (input[pointer] === p(":")) {
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if (input[pointer + 1] !== p(":")) {
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return failure;
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}
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pointer += 2;
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++pieceIndex;
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compress = pieceIndex;
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}
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while (pointer < input.length) {
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if (pieceIndex === 8) {
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return failure;
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}
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if (input[pointer] === p(":")) {
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if (compress !== null) {
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return failure;
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}
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++pointer;
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++pieceIndex;
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compress = pieceIndex;
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continue;
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}
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let value = 0;
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let length = 0;
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while (length < 4 && infra.isASCIIHex(input[pointer])) {
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value = value * 0x10 + parseInt(at(input, pointer), 16);
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++pointer;
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++length;
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}
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if (input[pointer] === p(".")) {
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if (length === 0) {
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return failure;
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}
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pointer -= length;
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if (pieceIndex > 6) {
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return failure;
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}
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let numbersSeen = 0;
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while (input[pointer] !== undefined) {
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let ipv4Piece = null;
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if (numbersSeen > 0) {
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if (input[pointer] === p(".") && numbersSeen < 4) {
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++pointer;
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} else {
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return failure;
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}
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}
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if (!infra.isASCIIDigit(input[pointer])) {
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return failure;
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}
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while (infra.isASCIIDigit(input[pointer])) {
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const number = parseInt(at(input, pointer));
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if (ipv4Piece === null) {
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ipv4Piece = number;
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} else if (ipv4Piece === 0) {
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return failure;
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} else {
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ipv4Piece = ipv4Piece * 10 + number;
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}
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if (ipv4Piece > 255) {
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return failure;
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}
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++pointer;
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}
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address[pieceIndex] = address[pieceIndex] * 0x100 + ipv4Piece;
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++numbersSeen;
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if (numbersSeen === 2 || numbersSeen === 4) {
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++pieceIndex;
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}
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}
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if (numbersSeen !== 4) {
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return failure;
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}
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break;
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} else if (input[pointer] === p(":")) {
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++pointer;
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if (input[pointer] === undefined) {
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return failure;
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}
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} else if (input[pointer] !== undefined) {
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return failure;
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}
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address[pieceIndex] = value;
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++pieceIndex;
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}
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if (compress !== null) {
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let swaps = pieceIndex - compress;
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pieceIndex = 7;
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while (pieceIndex !== 0 && swaps > 0) {
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const temp = address[compress + swaps - 1];
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address[compress + swaps - 1] = address[pieceIndex];
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address[pieceIndex] = temp;
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--pieceIndex;
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--swaps;
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}
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} else if (compress === null && pieceIndex !== 8) {
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return failure;
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}
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return address;
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}
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function serializeIPv6(address) {
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let output = "";
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const compress = findLongestZeroSequence(address);
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let ignore0 = false;
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for (let pieceIndex = 0; pieceIndex <= 7; ++pieceIndex) {
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if (ignore0 && address[pieceIndex] === 0) {
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continue;
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} else if (ignore0) {
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ignore0 = false;
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}
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if (compress === pieceIndex) {
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const separator = pieceIndex === 0 ? "::" : ":";
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output += separator;
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ignore0 = true;
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continue;
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}
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output += address[pieceIndex].toString(16);
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if (pieceIndex !== 7) {
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output += ":";
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}
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}
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return output;
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}
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function parseHost(input, isNotSpecialArg = false) {
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if (input[0] === "[") {
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if (input[input.length - 1] !== "]") {
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return failure;
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}
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return parseIPv6(input.substring(1, input.length - 1));
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}
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if (isNotSpecialArg) {
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return parseOpaqueHost(input);
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}
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const domain = utf8DecodeWithoutBOM(percentDecodeString(input));
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const asciiDomain = domainToASCII(domain);
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if (asciiDomain === failure) {
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return failure;
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}
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if (containsForbiddenHostCodePoint(asciiDomain)) {
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return failure;
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}
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if (endsInANumber(asciiDomain)) {
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return parseIPv4(asciiDomain);
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}
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return asciiDomain;
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}
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function endsInANumber(input) {
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const parts = input.split(".");
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if (parts[parts.length - 1] === "") {
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if (parts.length === 1) {
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return false;
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}
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parts.pop();
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}
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const last = parts[parts.length - 1];
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if (parseIPv4Number(last) !== failure) {
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return true;
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}
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if (/^[0-9]+$/u.test(last)) {
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return true;
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}
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return false;
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}
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function parseOpaqueHost(input) {
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if (containsForbiddenHostCodePointExcludingPercent(input)) {
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return failure;
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}
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return utf8PercentEncodeString(input, isC0ControlPercentEncode);
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}
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function findLongestZeroSequence(arr) {
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let maxIdx = null;
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let maxLen = 1; // only find elements > 1
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let currStart = null;
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let currLen = 0;
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for (let i = 0; i < arr.length; ++i) {
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if (arr[i] !== 0) {
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if (currLen > maxLen) {
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maxIdx = currStart;
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maxLen = currLen;
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}
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currStart = null;
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currLen = 0;
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} else {
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if (currStart === null) {
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currStart = i;
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}
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++currLen;
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}
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}
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// if trailing zeros
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if (currLen > maxLen) {
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return currStart;
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}
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return maxIdx;
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}
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function serializeHost(host) {
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if (typeof host === "number") {
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return serializeIPv4(host);
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}
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// IPv6 serializer
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if (host instanceof Array) {
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return `[${serializeIPv6(host)}]`;
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}
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return host;
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}
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function domainToASCII(domain, beStrict = false) {
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const result = tr46.toASCII(domain, {
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checkBidi: true,
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checkHyphens: false,
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checkJoiners: true,
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useSTD3ASCIIRules: beStrict,
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verifyDNSLength: beStrict
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});
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if (result === null || result === "") {
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return failure;
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}
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return result;
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}
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function trimControlChars(url) {
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return url.replace(/^[\u0000-\u001F\u0020]+|[\u0000-\u001F\u0020]+$/ug, "");
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}
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function trimTabAndNewline(url) {
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return url.replace(/\u0009|\u000A|\u000D/ug, "");
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}
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function shortenPath(url) {
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const { path } = url;
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if (path.length === 0) {
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return;
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}
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if (url.scheme === "file" && path.length === 1 && isNormalizedWindowsDriveLetter(path[0])) {
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return;
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}
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path.pop();
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}
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function includesCredentials(url) {
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return url.username !== "" || url.password !== "";
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}
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function cannotHaveAUsernamePasswordPort(url) {
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return url.host === null || url.host === "" || hasAnOpaquePath(url) || url.scheme === "file";
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}
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function hasAnOpaquePath(url) {
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return typeof url.path === "string";
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}
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function isNormalizedWindowsDriveLetter(string) {
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return /^[A-Za-z]:$/u.test(string);
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}
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function URLStateMachine(input, base, encodingOverride, url, stateOverride) {
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this.pointer = 0;
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this.input = input;
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this.base = base || null;
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this.encodingOverride = encodingOverride || "utf-8";
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this.stateOverride = stateOverride;
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this.url = url;
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this.failure = false;
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this.parseError = false;
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if (!this.url) {
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this.url = {
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scheme: "",
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username: "",
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password: "",
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host: null,
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port: null,
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path: [],
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query: null,
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fragment: null
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};
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const res = trimControlChars(this.input);
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if (res !== this.input) {
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this.parseError = true;
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}
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this.input = res;
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}
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const res = trimTabAndNewline(this.input);
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if (res !== this.input) {
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this.parseError = true;
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}
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this.input = res;
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this.state = stateOverride || "scheme start";
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this.buffer = "";
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this.atFlag = false;
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this.arrFlag = false;
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this.passwordTokenSeenFlag = false;
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this.input = Array.from(this.input, c => c.codePointAt(0));
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for (; this.pointer <= this.input.length; ++this.pointer) {
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const c = this.input[this.pointer];
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const cStr = isNaN(c) ? undefined : String.fromCodePoint(c);
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// exec state machine
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const ret = this[`parse ${this.state}`](c, cStr);
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if (!ret) {
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break; // terminate algorithm
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} else if (ret === failure) {
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this.failure = true;
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break;
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}
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}
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}
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URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, cStr) {
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if (infra.isASCIIAlpha(c)) {
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this.buffer += cStr.toLowerCase();
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this.state = "scheme";
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} else if (!this.stateOverride) {
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this.state = "no scheme";
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--this.pointer;
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} else {
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this.parseError = true;
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return failure;
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}
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return true;
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};
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URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) {
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if (infra.isASCIIAlphanumeric(c) || c === p("+") || c === p("-") || c === p(".")) {
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this.buffer += cStr.toLowerCase();
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} else if (c === p(":")) {
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if (this.stateOverride) {
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if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) {
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return false;
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}
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|
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if (!isSpecial(this.url) && isSpecialScheme(this.buffer)) {
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return false;
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}
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if ((includesCredentials(this.url) || this.url.port !== null) && this.buffer === "file") {
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return false;
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}
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if (this.url.scheme === "file" && this.url.host === "") {
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return false;
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}
|
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}
|
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this.url.scheme = this.buffer;
|
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if (this.stateOverride) {
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if (this.url.port === defaultPort(this.url.scheme)) {
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this.url.port = null;
|
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}
|
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return false;
|
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}
|
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this.buffer = "";
|
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if (this.url.scheme === "file") {
|
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if (this.input[this.pointer + 1] !== p("/") || this.input[this.pointer + 2] !== p("/")) {
|
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this.parseError = true;
|
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}
|
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this.state = "file";
|
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} else if (isSpecial(this.url) && this.base !== null && this.base.scheme === this.url.scheme) {
|
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this.state = "special relative or authority";
|
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} else if (isSpecial(this.url)) {
|
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this.state = "special authority slashes";
|
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} else if (this.input[this.pointer + 1] === p("/")) {
|
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this.state = "path or authority";
|
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++this.pointer;
|
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} else {
|
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this.url.path = "";
|
|
this.state = "opaque path";
|
|
}
|
|
} else if (!this.stateOverride) {
|
|
this.buffer = "";
|
|
this.state = "no scheme";
|
|
this.pointer = -1;
|
|
} else {
|
|
this.parseError = true;
|
|
return failure;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse no scheme"] = function parseNoScheme(c) {
|
|
if (this.base === null || (hasAnOpaquePath(this.base) && c !== p("#"))) {
|
|
return failure;
|
|
} else if (hasAnOpaquePath(this.base) && c === p("#")) {
|
|
this.url.scheme = this.base.scheme;
|
|
this.url.path = this.base.path;
|
|
this.url.query = this.base.query;
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
} else if (this.base.scheme === "file") {
|
|
this.state = "file";
|
|
--this.pointer;
|
|
} else {
|
|
this.state = "relative";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse special relative or authority"] = function parseSpecialRelativeOrAuthority(c) {
|
|
if (c === p("/") && this.input[this.pointer + 1] === p("/")) {
|
|
this.state = "special authority ignore slashes";
|
|
++this.pointer;
|
|
} else {
|
|
this.parseError = true;
|
|
this.state = "relative";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse path or authority"] = function parsePathOrAuthority(c) {
|
|
if (c === p("/")) {
|
|
this.state = "authority";
|
|
} else {
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse relative"] = function parseRelative(c) {
|
|
this.url.scheme = this.base.scheme;
|
|
if (c === p("/")) {
|
|
this.state = "relative slash";
|
|
} else if (isSpecial(this.url) && c === p("\\")) {
|
|
this.parseError = true;
|
|
this.state = "relative slash";
|
|
} else {
|
|
this.url.username = this.base.username;
|
|
this.url.password = this.base.password;
|
|
this.url.host = this.base.host;
|
|
this.url.port = this.base.port;
|
|
this.url.path = this.base.path.slice();
|
|
this.url.query = this.base.query;
|
|
if (c === p("?")) {
|
|
this.url.query = "";
|
|
this.state = "query";
|
|
} else if (c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
} else if (!isNaN(c)) {
|
|
this.url.query = null;
|
|
this.url.path.pop();
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse relative slash"] = function parseRelativeSlash(c) {
|
|
if (isSpecial(this.url) && (c === p("/") || c === p("\\"))) {
|
|
if (c === p("\\")) {
|
|
this.parseError = true;
|
|
}
|
|
this.state = "special authority ignore slashes";
|
|
} else if (c === p("/")) {
|
|
this.state = "authority";
|
|
} else {
|
|
this.url.username = this.base.username;
|
|
this.url.password = this.base.password;
|
|
this.url.host = this.base.host;
|
|
this.url.port = this.base.port;
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse special authority slashes"] = function parseSpecialAuthoritySlashes(c) {
|
|
if (c === p("/") && this.input[this.pointer + 1] === p("/")) {
|
|
this.state = "special authority ignore slashes";
|
|
++this.pointer;
|
|
} else {
|
|
this.parseError = true;
|
|
this.state = "special authority ignore slashes";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse special authority ignore slashes"] = function parseSpecialAuthorityIgnoreSlashes(c) {
|
|
if (c !== p("/") && c !== p("\\")) {
|
|
this.state = "authority";
|
|
--this.pointer;
|
|
} else {
|
|
this.parseError = true;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse authority"] = function parseAuthority(c, cStr) {
|
|
if (c === p("@")) {
|
|
this.parseError = true;
|
|
if (this.atFlag) {
|
|
this.buffer = `%40${this.buffer}`;
|
|
}
|
|
this.atFlag = true;
|
|
|
|
// careful, this is based on buffer and has its own pointer (this.pointer != pointer) and inner chars
|
|
const len = countSymbols(this.buffer);
|
|
for (let pointer = 0; pointer < len; ++pointer) {
|
|
const codePoint = this.buffer.codePointAt(pointer);
|
|
|
|
if (codePoint === p(":") && !this.passwordTokenSeenFlag) {
|
|
this.passwordTokenSeenFlag = true;
|
|
continue;
|
|
}
|
|
const encodedCodePoints = utf8PercentEncodeCodePoint(codePoint, isUserinfoPercentEncode);
|
|
if (this.passwordTokenSeenFlag) {
|
|
this.url.password += encodedCodePoints;
|
|
} else {
|
|
this.url.username += encodedCodePoints;
|
|
}
|
|
}
|
|
this.buffer = "";
|
|
} else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
|
|
(isSpecial(this.url) && c === p("\\"))) {
|
|
if (this.atFlag && this.buffer === "") {
|
|
this.parseError = true;
|
|
return failure;
|
|
}
|
|
this.pointer -= countSymbols(this.buffer) + 1;
|
|
this.buffer = "";
|
|
this.state = "host";
|
|
} else {
|
|
this.buffer += cStr;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse hostname"] =
|
|
URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
|
|
if (this.stateOverride && this.url.scheme === "file") {
|
|
--this.pointer;
|
|
this.state = "file host";
|
|
} else if (c === p(":") && !this.arrFlag) {
|
|
if (this.buffer === "") {
|
|
this.parseError = true;
|
|
return failure;
|
|
}
|
|
|
|
if (this.stateOverride === "hostname") {
|
|
return false;
|
|
}
|
|
|
|
const host = parseHost(this.buffer, isNotSpecial(this.url));
|
|
if (host === failure) {
|
|
return failure;
|
|
}
|
|
|
|
this.url.host = host;
|
|
this.buffer = "";
|
|
this.state = "port";
|
|
} else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
|
|
(isSpecial(this.url) && c === p("\\"))) {
|
|
--this.pointer;
|
|
if (isSpecial(this.url) && this.buffer === "") {
|
|
this.parseError = true;
|
|
return failure;
|
|
} else if (this.stateOverride && this.buffer === "" &&
|
|
(includesCredentials(this.url) || this.url.port !== null)) {
|
|
this.parseError = true;
|
|
return false;
|
|
}
|
|
|
|
const host = parseHost(this.buffer, isNotSpecial(this.url));
|
|
if (host === failure) {
|
|
return failure;
|
|
}
|
|
|
|
this.url.host = host;
|
|
this.buffer = "";
|
|
this.state = "path start";
|
|
if (this.stateOverride) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (c === p("[")) {
|
|
this.arrFlag = true;
|
|
} else if (c === p("]")) {
|
|
this.arrFlag = false;
|
|
}
|
|
this.buffer += cStr;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse port"] = function parsePort(c, cStr) {
|
|
if (infra.isASCIIDigit(c)) {
|
|
this.buffer += cStr;
|
|
} else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
|
|
(isSpecial(this.url) && c === p("\\")) ||
|
|
this.stateOverride) {
|
|
if (this.buffer !== "") {
|
|
const port = parseInt(this.buffer);
|
|
if (port > 2 ** 16 - 1) {
|
|
this.parseError = true;
|
|
return failure;
|
|
}
|
|
this.url.port = port === defaultPort(this.url.scheme) ? null : port;
|
|
this.buffer = "";
|
|
}
|
|
if (this.stateOverride) {
|
|
return false;
|
|
}
|
|
this.state = "path start";
|
|
--this.pointer;
|
|
} else {
|
|
this.parseError = true;
|
|
return failure;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
const fileOtherwiseCodePoints = new Set([p("/"), p("\\"), p("?"), p("#")]);
|
|
|
|
function startsWithWindowsDriveLetter(input, pointer) {
|
|
const length = input.length - pointer;
|
|
return length >= 2 &&
|
|
isWindowsDriveLetterCodePoints(input[pointer], input[pointer + 1]) &&
|
|
(length === 2 || fileOtherwiseCodePoints.has(input[pointer + 2]));
|
|
}
|
|
|
|
URLStateMachine.prototype["parse file"] = function parseFile(c) {
|
|
this.url.scheme = "file";
|
|
this.url.host = "";
|
|
|
|
if (c === p("/") || c === p("\\")) {
|
|
if (c === p("\\")) {
|
|
this.parseError = true;
|
|
}
|
|
this.state = "file slash";
|
|
} else if (this.base !== null && this.base.scheme === "file") {
|
|
this.url.host = this.base.host;
|
|
this.url.path = this.base.path.slice();
|
|
this.url.query = this.base.query;
|
|
if (c === p("?")) {
|
|
this.url.query = "";
|
|
this.state = "query";
|
|
} else if (c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
} else if (!isNaN(c)) {
|
|
this.url.query = null;
|
|
if (!startsWithWindowsDriveLetter(this.input, this.pointer)) {
|
|
shortenPath(this.url);
|
|
} else {
|
|
this.parseError = true;
|
|
this.url.path = [];
|
|
}
|
|
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
} else {
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) {
|
|
if (c === p("/") || c === p("\\")) {
|
|
if (c === p("\\")) {
|
|
this.parseError = true;
|
|
}
|
|
this.state = "file host";
|
|
} else {
|
|
if (this.base !== null && this.base.scheme === "file") {
|
|
if (!startsWithWindowsDriveLetter(this.input, this.pointer) &&
|
|
isNormalizedWindowsDriveLetterString(this.base.path[0])) {
|
|
this.url.path.push(this.base.path[0]);
|
|
}
|
|
this.url.host = this.base.host;
|
|
}
|
|
this.state = "path";
|
|
--this.pointer;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
|
|
if (isNaN(c) || c === p("/") || c === p("\\") || c === p("?") || c === p("#")) {
|
|
--this.pointer;
|
|
if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) {
|
|
this.parseError = true;
|
|
this.state = "path";
|
|
} else if (this.buffer === "") {
|
|
this.url.host = "";
|
|
if (this.stateOverride) {
|
|
return false;
|
|
}
|
|
this.state = "path start";
|
|
} else {
|
|
let host = parseHost(this.buffer, isNotSpecial(this.url));
|
|
if (host === failure) {
|
|
return failure;
|
|
}
|
|
if (host === "localhost") {
|
|
host = "";
|
|
}
|
|
this.url.host = host;
|
|
|
|
if (this.stateOverride) {
|
|
return false;
|
|
}
|
|
|
|
this.buffer = "";
|
|
this.state = "path start";
|
|
}
|
|
} else {
|
|
this.buffer += cStr;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse path start"] = function parsePathStart(c) {
|
|
if (isSpecial(this.url)) {
|
|
if (c === p("\\")) {
|
|
this.parseError = true;
|
|
}
|
|
this.state = "path";
|
|
|
|
if (c !== p("/") && c !== p("\\")) {
|
|
--this.pointer;
|
|
}
|
|
} else if (!this.stateOverride && c === p("?")) {
|
|
this.url.query = "";
|
|
this.state = "query";
|
|
} else if (!this.stateOverride && c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
} else if (c !== undefined) {
|
|
this.state = "path";
|
|
if (c !== p("/")) {
|
|
--this.pointer;
|
|
}
|
|
} else if (this.stateOverride && this.url.host === null) {
|
|
this.url.path.push("");
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse path"] = function parsePath(c) {
|
|
if (isNaN(c) || c === p("/") || (isSpecial(this.url) && c === p("\\")) ||
|
|
(!this.stateOverride && (c === p("?") || c === p("#")))) {
|
|
if (isSpecial(this.url) && c === p("\\")) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
if (isDoubleDot(this.buffer)) {
|
|
shortenPath(this.url);
|
|
if (c !== p("/") && !(isSpecial(this.url) && c === p("\\"))) {
|
|
this.url.path.push("");
|
|
}
|
|
} else if (isSingleDot(this.buffer) && c !== p("/") &&
|
|
!(isSpecial(this.url) && c === p("\\"))) {
|
|
this.url.path.push("");
|
|
} else if (!isSingleDot(this.buffer)) {
|
|
if (this.url.scheme === "file" && this.url.path.length === 0 && isWindowsDriveLetterString(this.buffer)) {
|
|
this.buffer = `${this.buffer[0]}:`;
|
|
}
|
|
this.url.path.push(this.buffer);
|
|
}
|
|
this.buffer = "";
|
|
if (c === p("?")) {
|
|
this.url.query = "";
|
|
this.state = "query";
|
|
}
|
|
if (c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
}
|
|
} else {
|
|
// TODO: If c is not a URL code point and not "%", parse error.
|
|
|
|
if (c === p("%") &&
|
|
(!infra.isASCIIHex(this.input[this.pointer + 1]) ||
|
|
!infra.isASCIIHex(this.input[this.pointer + 2]))) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
this.buffer += utf8PercentEncodeCodePoint(c, isPathPercentEncode);
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse opaque path"] = function parseOpaquePath(c) {
|
|
if (c === p("?")) {
|
|
this.url.query = "";
|
|
this.state = "query";
|
|
} else if (c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
} else {
|
|
// TODO: Add: not a URL code point
|
|
if (!isNaN(c) && c !== p("%")) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
if (c === p("%") &&
|
|
(!infra.isASCIIHex(this.input[this.pointer + 1]) ||
|
|
!infra.isASCIIHex(this.input[this.pointer + 2]))) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
if (!isNaN(c)) {
|
|
this.url.path += utf8PercentEncodeCodePoint(c, isC0ControlPercentEncode);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse query"] = function parseQuery(c, cStr) {
|
|
if (!isSpecial(this.url) || this.url.scheme === "ws" || this.url.scheme === "wss") {
|
|
this.encodingOverride = "utf-8";
|
|
}
|
|
|
|
if ((!this.stateOverride && c === p("#")) || isNaN(c)) {
|
|
const queryPercentEncodePredicate = isSpecial(this.url) ? isSpecialQueryPercentEncode : isQueryPercentEncode;
|
|
this.url.query += utf8PercentEncodeString(this.buffer, queryPercentEncodePredicate);
|
|
|
|
this.buffer = "";
|
|
|
|
if (c === p("#")) {
|
|
this.url.fragment = "";
|
|
this.state = "fragment";
|
|
}
|
|
} else if (!isNaN(c)) {
|
|
// TODO: If c is not a URL code point and not "%", parse error.
|
|
|
|
if (c === p("%") &&
|
|
(!infra.isASCIIHex(this.input[this.pointer + 1]) ||
|
|
!infra.isASCIIHex(this.input[this.pointer + 2]))) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
this.buffer += cStr;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
URLStateMachine.prototype["parse fragment"] = function parseFragment(c) {
|
|
if (!isNaN(c)) {
|
|
// TODO: If c is not a URL code point and not "%", parse error.
|
|
if (c === p("%") &&
|
|
(!infra.isASCIIHex(this.input[this.pointer + 1]) ||
|
|
!infra.isASCIIHex(this.input[this.pointer + 2]))) {
|
|
this.parseError = true;
|
|
}
|
|
|
|
this.url.fragment += utf8PercentEncodeCodePoint(c, isFragmentPercentEncode);
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
function serializeURL(url, excludeFragment) {
|
|
let output = `${url.scheme}:`;
|
|
if (url.host !== null) {
|
|
output += "//";
|
|
|
|
if (url.username !== "" || url.password !== "") {
|
|
output += url.username;
|
|
if (url.password !== "") {
|
|
output += `:${url.password}`;
|
|
}
|
|
output += "@";
|
|
}
|
|
|
|
output += serializeHost(url.host);
|
|
|
|
if (url.port !== null) {
|
|
output += `:${url.port}`;
|
|
}
|
|
}
|
|
|
|
if (url.host === null && !hasAnOpaquePath(url) && url.path.length > 1 && url.path[0] === "") {
|
|
output += "/.";
|
|
}
|
|
output += serializePath(url);
|
|
|
|
if (url.query !== null) {
|
|
output += `?${url.query}`;
|
|
}
|
|
|
|
if (!excludeFragment && url.fragment !== null) {
|
|
output += `#${url.fragment}`;
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
function serializeOrigin(tuple) {
|
|
let result = `${tuple.scheme}://`;
|
|
result += serializeHost(tuple.host);
|
|
|
|
if (tuple.port !== null) {
|
|
result += `:${tuple.port}`;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
function serializePath(url) {
|
|
if (hasAnOpaquePath(url)) {
|
|
return url.path;
|
|
}
|
|
|
|
let output = "";
|
|
for (const segment of url.path) {
|
|
output += `/${segment}`;
|
|
}
|
|
return output;
|
|
}
|
|
|
|
module.exports.serializeURL = serializeURL;
|
|
|
|
module.exports.serializePath = serializePath;
|
|
|
|
module.exports.serializeURLOrigin = function (url) {
|
|
// https://url.spec.whatwg.org/#concept-url-origin
|
|
switch (url.scheme) {
|
|
case "blob":
|
|
try {
|
|
return module.exports.serializeURLOrigin(module.exports.parseURL(serializePath(url)));
|
|
} catch (e) {
|
|
// serializing an opaque origin returns "null"
|
|
return "null";
|
|
}
|
|
case "ftp":
|
|
case "http":
|
|
case "https":
|
|
case "ws":
|
|
case "wss":
|
|
return serializeOrigin({
|
|
scheme: url.scheme,
|
|
host: url.host,
|
|
port: url.port
|
|
});
|
|
case "file":
|
|
// The spec says:
|
|
// > Unfortunate as it is, this is left as an exercise to the reader. When in doubt, return a new opaque origin.
|
|
// Browsers tested so far:
|
|
// - Chrome says "file://", but treats file: URLs as cross-origin for most (all?) purposes; see e.g.
|
|
// https://bugs.chromium.org/p/chromium/issues/detail?id=37586
|
|
// - Firefox says "null", but treats file: URLs as same-origin sometimes based on directory stuff; see
|
|
// https://developer.mozilla.org/en-US/docs/Archive/Misc_top_level/Same-origin_policy_for_file:_URIs
|
|
return "null";
|
|
default:
|
|
// serializing an opaque origin returns "null"
|
|
return "null";
|
|
}
|
|
};
|
|
|
|
module.exports.basicURLParse = function (input, options) {
|
|
if (options === undefined) {
|
|
options = {};
|
|
}
|
|
|
|
const usm = new URLStateMachine(input, options.baseURL, options.encodingOverride, options.url, options.stateOverride);
|
|
if (usm.failure) {
|
|
return null;
|
|
}
|
|
|
|
return usm.url;
|
|
};
|
|
|
|
module.exports.setTheUsername = function (url, username) {
|
|
url.username = utf8PercentEncodeString(username, isUserinfoPercentEncode);
|
|
};
|
|
|
|
module.exports.setThePassword = function (url, password) {
|
|
url.password = utf8PercentEncodeString(password, isUserinfoPercentEncode);
|
|
};
|
|
|
|
module.exports.serializeHost = serializeHost;
|
|
|
|
module.exports.cannotHaveAUsernamePasswordPort = cannotHaveAUsernamePasswordPort;
|
|
|
|
module.exports.hasAnOpaquePath = hasAnOpaquePath;
|
|
|
|
module.exports.serializeInteger = function (integer) {
|
|
return String(integer);
|
|
};
|
|
|
|
module.exports.parseURL = function (input, options) {
|
|
if (options === undefined) {
|
|
options = {};
|
|
}
|
|
|
|
// We don't handle blobs, so this just delegates:
|
|
return module.exports.basicURLParse(input, { baseURL: options.baseURL, encodingOverride: options.encodingOverride });
|
|
};
|