+// Copyright (c) 2016-2023 by the citadel.org team
//
-// Copyright (c) 2016-2021 by the citadel.org team
-//
-// This program is open source software. It runs great on the
-// Linux operating system (and probably elsewhere). You can use,
-// copy, and run it under the terms of the GNU General Public
-// License version 3. Richard Stallman is an asshole communist.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-
-// Function to encode data in quoted-printable format
-// Written by Theriault and Brett Zamir [https://locutus.io/php/quoted_printable_encode/]
-function quoted_printable_encode(str) {
- const hexChars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
- const RFC2045Encode1IN = / \r\n|\r\n|[^!-<>-~ ]/gm
- const RFC2045Encode1OUT = function (sMatch) {
- // Encode space before CRLF sequence to prevent spaces from being stripped
- // Keep hard line breaks intact; CRLF sequences
- if (sMatch.length > 1) {
- return sMatch.replace(' ', '=20');
- }
- // Encode matching character
- const chr = sMatch.charCodeAt(0);
- return '=' + hexChars[((chr >>> 4) & 15)] + hexChars[(chr & 15)];
- }
- // Split lines to 75 characters; the reason it's 75 and not 76 is because softline breaks are
- // preceeded by an equal sign; which would be the 76th character. However, if the last line/string
- // was exactly 76 characters, then a softline would not be needed. PHP currently softbreaks
- // anyway; so this function replicates PHP.
- const RFC2045Encode2IN = /.{1,72}(?!\r\n)[^=]{0,3}/g
- const RFC2045Encode2OUT = function (sMatch) {
- if (sMatch.substr(sMatch.length - 2) === '\r\n') {
- return sMatch;
- }
- return sMatch + '=\r\n';
- }
- str = str.replace(RFC2045Encode1IN, RFC2045Encode1OUT).replace(RFC2045Encode2IN, RFC2045Encode2OUT);
- // Strip last softline break
- return str.substr(0, str.length - 3)
-}
+// This program is open source software. Use, duplication, or
+// disclosure are subject to the GNU General Public License v3.
-// Generate a random string of the specified length
-// Useful for generating one-time-use div names
-function randomString(length) {
- var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghiklmnopqrstuvwxyz'.split('');
- var str = '';
+// // (We don't need this anymore because we encode on the server side)
+// // Function to encode data in quoted-printable format
+// // Written by Theriault and Brett Zamir [https://locutus.io/php/quoted_printable_encode/]
+// function quoted_printable_encode(str) {
+// const hexChars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
+// const RFC2045Encode1IN = / \r\n|\r\n|[^!-<>-~ ]/gm
+// const RFC2045Encode1OUT = function (sMatch) {
+// // Encode space before CRLF sequence to prevent spaces from being stripped
+// // Keep hard line breaks intact; CRLF sequences
+// if (sMatch.length > 1) {
+// return sMatch.replace(' ', '=20');
+// }
+// // Encode matching character
+// const chr = sMatch.charCodeAt(0);
+// return '=' + hexChars[((chr >>> 4) & 15)] + hexChars[(chr & 15)];
+// }
+// // Split lines to 75 characters; the reason it's 75 and not 76 is because softline breaks are
+// // preceeded by an equal sign; which would be the 76th character. However, if the last line/string
+// // was exactly 76 characters, then a softline would not be needed. PHP currently softbreaks
+// // anyway; so this function replicates PHP.
+// const RFC2045Encode2IN = /.{1,72}(?!\r\n)[^=]{0,3}/g
+// const RFC2045Encode2OUT = function (sMatch) {
+// if (sMatch.substr(sMatch.length - 2) === '\r\n') {
+// return sMatch;
+// }
+// return sMatch + '=\r\n';
+// }
+// str = str.replace(RFC2045Encode1IN, RFC2045Encode1OUT).replace(RFC2045Encode2IN, RFC2045Encode2OUT);
+// // Strip last softline break
+// return str.substr(0, str.length - 3)
+// }
- if (!length) {
- length = Math.floor(Math.random() * chars.length);
- }
- for (var i = 0; i < length; i++) {
- str += chars[Math.floor(Math.random() * chars.length)];
- }
- return str;
+
+// generate a random string -- mainly used for generating one-time-use div names
+function randomString() {
+ return Math.random().toString(36).replace('0.','ctdl_' || '');
}
}
-// string escape for html display
+// string escape for html display FIXME can this be replaced with encodeURI() from the standard library?
function escapeHTMLURI(text) {
'use strict';
return text.replace(/./g, function (a) {
// string escape for JavaScript string
-//
function escapeJS(text) {
'use strict';
return text.replace(/[\"\']/g, function (a) {
return '\\' + a ;
});
}
+
+
+// Convert a UNIX timestamp to the browser's local time
+// See also: https://timestamp.online/article/how-to-convert-timestamp-to-datetime-in-javascript
+// format should be: 0=full (date+time), 1=brief (date if not today, time if today)
+function string_timestamp(timestamp, format) {
+ var ts = new Date(timestamp * 1000);
+ if (format == 1) {
+ var now_ts = new Date(Date.now());
+ if (ts.toLocaleDateString() == now_ts.toLocaleDateString()) {
+ return(ts.toLocaleTimeString());
+ }
+ else {
+ return(ts.toLocaleDateString());
+ }
+ }
+ else {
+ return(ts.toLocaleString());
+ }
+}
+
+
+// An old version of string_timestamp() did it the hard way.
+// It used https://gist.github.com/kmaida/6045266 as a reference.
+// check git history prior to 2022-jul-03 if you want to see it.
+
+
+// Get the value of a cookie from the HTTP session
+// Shamelessly swiped from https://stackoverflow.com/questions/5639346/what-is-the-shortest-function-for-reading-a-cookie-by-name-in-javascript
+const getCookieValue = (name) => (
+ document.cookie.match('(^|;)\\s*' + name + '\\s*=\\s*([^;]+)')?.pop() || ''
+)
+
+