contents of zip

backend/common.php

@@ -0,0 +1,77 @@
+<?php
+
+	// Constants
+	
+	// Version number
+	const VERSION_NUMBER = "2.6.0";
+	
+	// Version release date
+	const VERSION_RELEASE_DATE = "20 Nov 2024 23:39:00 UTC";
+	
+	// Version changes
+	const VERSION_CHANGES = [
+		"Fixed title and metadata not changing when language is changed.",
+		"Added support for Ledger Flex and Trezor Safe 5 hardware wallets.",
+		"Added notice to login screen to deter people from using potentially malicious clones of this service.",
+		"Fixed wallet ordering buttons not updating when a wallet is deleted."
+	];
+	
+	// Maintenance start time
+	const MAINTENANCE_START_TIME = "01 Jan 1970 00:00:00 UTC";
+
+	// Copyright year
+	const COPYRIGHT_YEAR = 2022;
+	
+	// Date year string
+	const DATE_YEAR_STRING = "Y";
+	
+	// Grace accent HTML entity
+	const GRAVE_ACCENT_HTML_ENTITY = "&#x60;";
+	
+	// Seconds in a minute
+	const SECONDS_IN_A_MINUTE = 60;
+	
+	// Minutes in an hour
+	const MINUTES_IN_AN_HOUR = 60;
+	
+	// Hours in a day
+	const HOURS_IN_A_DAY = 24;
+	
+	
+	// Supporting function implementation
+	
+	// Encode string
+	function encodeString($string) {
+	
+		// Return string with backticks, ampersands, double quotes, single quotes, greater than signs, and less than signs encoded as HTML
+		return preg_replace('/`/u', GRAVE_ACCENT_HTML_ENTITY, htmlspecialchars($string, ENT_QUOTES));
+	}
+	
+	// Escape string
+	function escapeString($string) {
+	
+		// Return string with double quotes and back slashes escaped
+		return preg_replace('/(["\\\\])/u', "\\\\$1", $string);
+	}
+	
+	// Sanitize attribute name
+	function sanitizeAttributeName($string) {
+	
+		// Return string without spaces, equals, double quotes, single quotes, backticks, greater than signs, less than signs, and ampersands
+		return preg_replace('/[ ="\'`<>&]/u', "", $string);
+	}
+	
+	// Get year
+	function getYear() {
+	
+		// Return year
+		return intval(date(DATE_YEAR_STRING));
+	}
+	
+	// Starts with
+	function startsWith($haystack, $needle) {
+	
+		// Search backwards starting from haystack length characters from the end
+		return $needle === "" || mb_strrpos($haystack, $needle, -mb_strlen($haystack)) !== FALSE;
+	}
+?>