File: //proc/1233/cwd/home/arjun/projects/good-life-be/node_modules/tough-cookie/dist/cookie/parseDate.js
"use strict";
// date-time parsing constants (RFC6265 S5.1.1)
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseDate = parseDate;
// eslint-disable-next-line no-control-regex
const DATE_DELIM = /[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]/;
const MONTH_TO_NUM = {
jan: 0,
feb: 1,
mar: 2,
apr: 3,
may: 4,
jun: 5,
jul: 6,
aug: 7,
sep: 8,
oct: 9,
nov: 10,
dec: 11,
};
/*
* Parses a Natural number (i.e., non-negative integer) with either the
* <min>*<max>DIGIT ( non-digit *OCTET )
* or
* <min>*<max>DIGIT
* grammar (RFC6265 S5.1.1).
*
* The "trailingOK" boolean controls if the grammar accepts a
* "( non-digit *OCTET )" trailer.
*/
function parseDigits(token, minDigits, maxDigits, trailingOK) {
let count = 0;
while (count < token.length) {
const c = token.charCodeAt(count);
// "non-digit = %x00-2F / %x3A-FF"
if (c <= 0x2f || c >= 0x3a) {
break;
}
count++;
}
// constrain to a minimum and maximum number of digits.
if (count < minDigits || count > maxDigits) {
return;
}
if (!trailingOK && count != token.length) {
return;
}
return parseInt(token.slice(0, count), 10);
}
function parseTime(token) {
const parts = token.split(':');
const result = [0, 0, 0];
/* RF6256 S5.1.1:
* time = hms-time ( non-digit *OCTET )
* hms-time = time-field ":" time-field ":" time-field
* time-field = 1*2DIGIT
*/
if (parts.length !== 3) {
return;
}
for (let i = 0; i < 3; i++) {
// "time-field" must be strictly "1*2DIGIT", HOWEVER, "hms-time" can be
// followed by "( non-digit *OCTET )" therefore the last time-field can
// have a trailer
const trailingOK = i == 2;
const numPart = parts[i];
if (numPart === undefined) {
return;
}
const num = parseDigits(numPart, 1, 2, trailingOK);
if (num === undefined) {
return;
}
result[i] = num;
}
return result;
}
function parseMonth(token) {
token = String(token).slice(0, 3).toLowerCase();
switch (token) {
case 'jan':
return MONTH_TO_NUM.jan;
case 'feb':
return MONTH_TO_NUM.feb;
case 'mar':
return MONTH_TO_NUM.mar;
case 'apr':
return MONTH_TO_NUM.apr;
case 'may':
return MONTH_TO_NUM.may;
case 'jun':
return MONTH_TO_NUM.jun;
case 'jul':
return MONTH_TO_NUM.jul;
case 'aug':
return MONTH_TO_NUM.aug;
case 'sep':
return MONTH_TO_NUM.sep;
case 'oct':
return MONTH_TO_NUM.oct;
case 'nov':
return MONTH_TO_NUM.nov;
case 'dec':
return MONTH_TO_NUM.dec;
default:
return;
}
}
/**
* 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
* {@link https://www.rfc-editor.org/rfc/rfc6265.html#section-5.1.1 | RFC6265 - Section 5.1.1}, not
* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse | Date.parse()}.
*
* @remarks
*
* ### RFC6265 - 5.1.1. Dates
*
* The user agent MUST use an algorithm equivalent to the following
* algorithm to parse a cookie-date. Note that the various boolean
* flags defined as a part of the algorithm (i.e., found-time, found-
* day-of-month, found-month, found-year) are initially "not set".
*
* 1. Using the grammar below, divide the cookie-date into date-tokens.
*
* ```
* cookie-date = *delimiter date-token-list *delimiter
* date-token-list = date-token *( 1*delimiter date-token )
* date-token = 1*non-delimiter
*
* delimiter = %x09 / %x20-2F / %x3B-40 / %x5B-60 / %x7B-7E
* non-delimiter = %x00-08 / %x0A-1F / DIGIT / ":" / ALPHA / %x7F-FF
* non-digit = %x00-2F / %x3A-FF
*
* day-of-month = 1*2DIGIT ( non-digit *OCTET )
* month = ( "jan" / "feb" / "mar" / "apr" /
* "may" / "jun" / "jul" / "aug" /
* "sep" / "oct" / "nov" / "dec" ) *OCTET
* year = 2*4DIGIT ( non-digit *OCTET )
* time = hms-time ( non-digit *OCTET )
* hms-time = time-field ":" time-field ":" time-field
* time-field = 1*2DIGIT
* ```
*
* 2. Process each date-token sequentially in the order the date-tokens
* appear in the cookie-date:
*
* 1. If the found-time flag is not set and the token matches the
* time production, set the found-time flag and set the hour-
* value, minute-value, and second-value to the numbers denoted
* by the digits in the date-token, respectively. Skip the
* remaining sub-steps and continue to the next date-token.
*
* 2. If the found-day-of-month flag is not set and the date-token
* matches the day-of-month production, set the found-day-of-
* month flag and set the day-of-month-value to the number
* denoted by the date-token. Skip the remaining sub-steps and
* continue to the next date-token.
*
* 3. If the found-month flag is not set and the date-token matches
* the month production, set the found-month flag and set the
* month-value to the month denoted by the date-token. Skip the
* remaining sub-steps and continue to the next date-token.
*
* 4. If the found-year flag is not set and the date-token matches
* the year production, set the found-year flag and set the
* year-value to the number denoted by the date-token. Skip the
* remaining sub-steps and continue to the next date-token.
*
* 3. If the year-value is greater than or equal to 70 and less than or
* equal to 99, increment the year-value by 1900.
*
* 4. If the year-value is greater than or equal to 0 and less than or
* equal to 69, increment the year-value by 2000.
*
* 1. NOTE: Some existing user agents interpret two-digit years differently.
*
* 5. Abort these steps and fail to parse the cookie-date if:
*
* - at least one of the found-day-of-month, found-month, found-
* year, or found-time flags is not set,
*
* - the day-of-month-value is less than 1 or greater than 31,
*
* - the year-value is less than 1601,
*
* - the hour-value is greater than 23,
*
* - the minute-value is greater than 59, or
*
* - the second-value is greater than 59.
*
* (Note that leap seconds cannot be represented in this syntax.)
*
* 6. Let the parsed-cookie-date be the date whose day-of-month, month,
* year, hour, minute, and second (in UTC) are the day-of-month-
* value, the month-value, the year-value, the hour-value, the
* minute-value, and the second-value, respectively. If no such
* date exists, abort these steps and fail to parse the cookie-date.
*
* 7. Return the parsed-cookie-date as the result of this algorithm.
*
* @example
* ```
* parseDate('Wed, 09 Jun 2021 10:18:14 GMT')
* ```
*
* @param cookieDate - the cookie date string
* @public
*/
function parseDate(cookieDate) {
if (!cookieDate) {
return;
}
/* RFC6265 S5.1.1:
* 2. Process each date-token sequentially in the order the date-tokens
* appear in the cookie-date
*/
const tokens = cookieDate.split(DATE_DELIM);
let hour;
let minute;
let second;
let dayOfMonth;
let month;
let year;
for (let i = 0; i < tokens.length; i++) {
const token = (tokens[i] ?? '').trim();
if (!token.length) {
continue;
}
/* 2.1. If the found-time flag is not set and the token matches the time
* production, set the found-time flag and set the hour- value,
* minute-value, and second-value to the numbers denoted by the digits in
* the date-token, respectively. Skip the remaining sub-steps and continue
* to the next date-token.
*/
if (second === undefined) {
const result = parseTime(token);
if (result) {
hour = result[0];
minute = result[1];
second = result[2];
continue;
}
}
/* 2.2. If the found-day-of-month flag is not set and the date-token matches
* the day-of-month production, set the found-day-of- month flag and set
* the day-of-month-value to the number denoted by the date-token. Skip
* the remaining sub-steps and continue to the next date-token.
*/
if (dayOfMonth === undefined) {
// "day-of-month = 1*2DIGIT ( non-digit *OCTET )"
const result = parseDigits(token, 1, 2, true);
if (result !== undefined) {
dayOfMonth = result;
continue;
}
}
/* 2.3. If the found-month flag is not set and the date-token matches the
* month production, set the found-month flag and set the month-value to
* the month denoted by the date-token. Skip the remaining sub-steps and
* continue to the next date-token.
*/
if (month === undefined) {
const result = parseMonth(token);
if (result !== undefined) {
month = result;
continue;
}
}
/* 2.4. If the found-year flag is not set and the date-token matches the
* year production, set the found-year flag and set the year-value to the
* number denoted by the date-token. Skip the remaining sub-steps and
* continue to the next date-token.
*/
if (year === undefined) {
// "year = 2*4DIGIT ( non-digit *OCTET )"
const result = parseDigits(token, 2, 4, true);
if (result !== undefined) {
year = result;
/* From S5.1.1:
* 3. If the year-value is greater than or equal to 70 and less
* than or equal to 99, increment the year-value by 1900.
* 4. If the year-value is greater than or equal to 0 and less
* than or equal to 69, increment the year-value by 2000.
*/
if (year >= 70 && year <= 99) {
year += 1900;
}
else if (year >= 0 && year <= 69) {
year += 2000;
}
}
}
}
/* RFC 6265 S5.1.1
* "5. Abort these steps and fail to parse the cookie-date if:
* * at least one of the found-day-of-month, found-month, found-
* year, or found-time flags is not set,
* * the day-of-month-value is less than 1 or greater than 31,
* * the year-value is less than 1601,
* * the hour-value is greater than 23,
* * the minute-value is greater than 59, or
* * the second-value is greater than 59.
* (Note that leap seconds cannot be represented in this syntax.)"
*
* So, in order as above:
*/
if (dayOfMonth === undefined ||
month === undefined ||
year === undefined ||
hour === undefined ||
minute === undefined ||
second === undefined ||
dayOfMonth < 1 ||
dayOfMonth > 31 ||
year < 1601 ||
hour > 23 ||
minute > 59 ||
second > 59) {
return;
}
return new Date(Date.UTC(year, month, dayOfMonth, hour, minute, second));
}