Update checked-in dependencies
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323
node_modules/tough-cookie/dist/cookie/parseDate.js
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323
node_modules/tough-cookie/dist/cookie/parseDate.js
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"use strict";
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// date-time parsing constants (RFC6265 S5.1.1)
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.parseDate = parseDate;
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// eslint-disable-next-line no-control-regex
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const DATE_DELIM = /[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]/;
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const MONTH_TO_NUM = {
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jan: 0,
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feb: 1,
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mar: 2,
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apr: 3,
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may: 4,
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jun: 5,
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jul: 6,
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aug: 7,
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sep: 8,
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oct: 9,
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nov: 10,
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dec: 11,
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};
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/*
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* Parses a Natural number (i.e., non-negative integer) with either the
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* <min>*<max>DIGIT ( non-digit *OCTET )
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* or
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* <min>*<max>DIGIT
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* grammar (RFC6265 S5.1.1).
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*
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* The "trailingOK" boolean controls if the grammar accepts a
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* "( non-digit *OCTET )" trailer.
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*/
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function parseDigits(token, minDigits, maxDigits, trailingOK) {
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let count = 0;
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while (count < token.length) {
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const c = token.charCodeAt(count);
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// "non-digit = %x00-2F / %x3A-FF"
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if (c <= 0x2f || c >= 0x3a) {
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break;
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}
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count++;
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}
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// constrain to a minimum and maximum number of digits.
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if (count < minDigits || count > maxDigits) {
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return;
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}
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if (!trailingOK && count != token.length) {
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return;
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}
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return parseInt(token.slice(0, count), 10);
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}
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function parseTime(token) {
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const parts = token.split(':');
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const result = [0, 0, 0];
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/* RF6256 S5.1.1:
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* time = hms-time ( non-digit *OCTET )
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* hms-time = time-field ":" time-field ":" time-field
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* time-field = 1*2DIGIT
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*/
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if (parts.length !== 3) {
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return;
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}
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for (let i = 0; i < 3; i++) {
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// "time-field" must be strictly "1*2DIGIT", HOWEVER, "hms-time" can be
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// followed by "( non-digit *OCTET )" therefore the last time-field can
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// have a trailer
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const trailingOK = i == 2;
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const numPart = parts[i];
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if (numPart === undefined) {
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return;
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}
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const num = parseDigits(numPart, 1, 2, trailingOK);
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if (num === undefined) {
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return;
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}
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result[i] = num;
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}
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return result;
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}
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function parseMonth(token) {
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token = String(token).slice(0, 3).toLowerCase();
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switch (token) {
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case 'jan':
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return MONTH_TO_NUM.jan;
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case 'feb':
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return MONTH_TO_NUM.feb;
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case 'mar':
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return MONTH_TO_NUM.mar;
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case 'apr':
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return MONTH_TO_NUM.apr;
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case 'may':
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return MONTH_TO_NUM.may;
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case 'jun':
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return MONTH_TO_NUM.jun;
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case 'jul':
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return MONTH_TO_NUM.jul;
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case 'aug':
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return MONTH_TO_NUM.aug;
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case 'sep':
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return MONTH_TO_NUM.sep;
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case 'oct':
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return MONTH_TO_NUM.oct;
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case 'nov':
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return MONTH_TO_NUM.nov;
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case 'dec':
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return MONTH_TO_NUM.dec;
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default:
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return;
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}
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}
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/**
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* Parse a cookie date string into a {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date | Date}. Parses according to
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* {@link https://www.rfc-editor.org/rfc/rfc6265.html#section-5.1.1 | RFC6265 - Section 5.1.1}, not
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse | Date.parse()}.
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*
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* @remarks
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*
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* ### RFC6265 - 5.1.1. Dates
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*
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* The user agent MUST use an algorithm equivalent to the following
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* algorithm to parse a cookie-date. Note that the various boolean
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* flags defined as a part of the algorithm (i.e., found-time, found-
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* day-of-month, found-month, found-year) are initially "not set".
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*
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* 1. Using the grammar below, divide the cookie-date into date-tokens.
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*
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* ```
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* cookie-date = *delimiter date-token-list *delimiter
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* date-token-list = date-token *( 1*delimiter date-token )
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* date-token = 1*non-delimiter
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*
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* delimiter = %x09 / %x20-2F / %x3B-40 / %x5B-60 / %x7B-7E
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* non-delimiter = %x00-08 / %x0A-1F / DIGIT / ":" / ALPHA / %x7F-FF
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* non-digit = %x00-2F / %x3A-FF
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*
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* day-of-month = 1*2DIGIT ( non-digit *OCTET )
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* month = ( "jan" / "feb" / "mar" / "apr" /
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* "may" / "jun" / "jul" / "aug" /
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* "sep" / "oct" / "nov" / "dec" ) *OCTET
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* year = 2*4DIGIT ( non-digit *OCTET )
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* time = hms-time ( non-digit *OCTET )
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* hms-time = time-field ":" time-field ":" time-field
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* time-field = 1*2DIGIT
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* ```
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*
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* 2. Process each date-token sequentially in the order the date-tokens
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* appear in the cookie-date:
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*
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* 1. If the found-time flag is not set and the token matches the
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* time production, set the found-time flag and set the hour-
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* value, minute-value, and second-value to the numbers denoted
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* by the digits in the date-token, respectively. Skip the
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* remaining sub-steps and continue to the next date-token.
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*
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* 2. If the found-day-of-month flag is not set and the date-token
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* matches the day-of-month production, set the found-day-of-
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* month flag and set the day-of-month-value to the number
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* denoted by the date-token. Skip the remaining sub-steps and
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* continue to the next date-token.
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*
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* 3. If the found-month flag is not set and the date-token matches
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* the month production, set the found-month flag and set the
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* month-value to the month denoted by the date-token. Skip the
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* remaining sub-steps and continue to the next date-token.
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*
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* 4. If the found-year flag is not set and the date-token matches
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* the year production, set the found-year flag and set the
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* year-value to the number denoted by the date-token. Skip the
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* remaining sub-steps and continue to the next date-token.
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*
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* 3. If the year-value is greater than or equal to 70 and less than or
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* equal to 99, increment the year-value by 1900.
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*
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* 4. If the year-value is greater than or equal to 0 and less than or
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* equal to 69, increment the year-value by 2000.
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*
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* 1. NOTE: Some existing user agents interpret two-digit years differently.
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*
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* 5. Abort these steps and fail to parse the cookie-date if:
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*
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* - at least one of the found-day-of-month, found-month, found-
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* year, or found-time flags is not set,
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*
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* - the day-of-month-value is less than 1 or greater than 31,
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*
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* - the year-value is less than 1601,
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*
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* - the hour-value is greater than 23,
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*
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* - the minute-value is greater than 59, or
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*
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* - the second-value is greater than 59.
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*
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* (Note that leap seconds cannot be represented in this syntax.)
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*
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* 6. Let the parsed-cookie-date be the date whose day-of-month, month,
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* year, hour, minute, and second (in UTC) are the day-of-month-
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* value, the month-value, the year-value, the hour-value, the
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* minute-value, and the second-value, respectively. If no such
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* date exists, abort these steps and fail to parse the cookie-date.
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*
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* 7. Return the parsed-cookie-date as the result of this algorithm.
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*
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* @example
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* ```
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* parseDate('Wed, 09 Jun 2021 10:18:14 GMT')
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* ```
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*
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* @param cookieDate - the cookie date string
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* @public
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*/
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function parseDate(cookieDate) {
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if (!cookieDate) {
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return;
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}
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/* RFC6265 S5.1.1:
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* 2. Process each date-token sequentially in the order the date-tokens
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* appear in the cookie-date
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*/
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const tokens = cookieDate.split(DATE_DELIM);
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let hour;
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let minute;
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let second;
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let dayOfMonth;
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let month;
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let year;
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for (let i = 0; i < tokens.length; i++) {
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const token = (tokens[i] ?? '').trim();
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if (!token.length) {
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continue;
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}
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/* 2.1. If the found-time flag is not set and the token matches the time
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* production, set the found-time flag and set the hour- value,
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* minute-value, and second-value to the numbers denoted by the digits in
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* the date-token, respectively. Skip the remaining sub-steps and continue
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* to the next date-token.
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*/
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if (second === undefined) {
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const result = parseTime(token);
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if (result) {
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hour = result[0];
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minute = result[1];
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second = result[2];
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continue;
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}
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}
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/* 2.2. If the found-day-of-month flag is not set and the date-token matches
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* the day-of-month production, set the found-day-of- month flag and set
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* the day-of-month-value to the number denoted by the date-token. Skip
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* the remaining sub-steps and continue to the next date-token.
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*/
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if (dayOfMonth === undefined) {
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// "day-of-month = 1*2DIGIT ( non-digit *OCTET )"
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const result = parseDigits(token, 1, 2, true);
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if (result !== undefined) {
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dayOfMonth = result;
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continue;
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}
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}
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/* 2.3. If the found-month flag is not set and the date-token matches the
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* month production, set the found-month flag and set the month-value to
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* the month denoted by the date-token. Skip the remaining sub-steps and
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* continue to the next date-token.
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*/
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if (month === undefined) {
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const result = parseMonth(token);
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if (result !== undefined) {
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month = result;
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continue;
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}
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}
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/* 2.4. If the found-year flag is not set and the date-token matches the
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* year production, set the found-year flag and set the year-value to the
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* number denoted by the date-token. Skip the remaining sub-steps and
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* continue to the next date-token.
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*/
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if (year === undefined) {
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// "year = 2*4DIGIT ( non-digit *OCTET )"
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const result = parseDigits(token, 2, 4, true);
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if (result !== undefined) {
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year = result;
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/* From S5.1.1:
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* 3. If the year-value is greater than or equal to 70 and less
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* than or equal to 99, increment the year-value by 1900.
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* 4. If the year-value is greater than or equal to 0 and less
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* than or equal to 69, increment the year-value by 2000.
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*/
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if (year >= 70 && year <= 99) {
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year += 1900;
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}
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else if (year >= 0 && year <= 69) {
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year += 2000;
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}
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}
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}
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}
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/* RFC 6265 S5.1.1
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* "5. Abort these steps and fail to parse the cookie-date if:
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* * at least one of the found-day-of-month, found-month, found-
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* year, or found-time flags is not set,
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* * the day-of-month-value is less than 1 or greater than 31,
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* * the year-value is less than 1601,
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* * the hour-value is greater than 23,
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* * the minute-value is greater than 59, or
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* * the second-value is greater than 59.
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* (Note that leap seconds cannot be represented in this syntax.)"
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*
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* So, in order as above:
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*/
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if (dayOfMonth === undefined ||
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month === undefined ||
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year === undefined ||
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hour === undefined ||
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minute === undefined ||
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second === undefined ||
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dayOfMonth < 1 ||
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dayOfMonth > 31 ||
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year < 1601 ||
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hour > 23 ||
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minute > 59 ||
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second > 59) {
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return;
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}
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return new Date(Date.UTC(year, month, dayOfMonth, hour, minute, second));
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}
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