mirror of https://github.com/itflow-org/itflow
592 lines
23 KiB
PHP
592 lines
23 KiB
PHP
<?php
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/*
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* File: EncodingAliases.php
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* Category: -
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* Author: S. Todorov (https://github.com/todorowww)
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* Created: 23.04.18 14:16
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* Updated: -
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*
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* Description:
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* Contains email encoding aliases, thta can occur when fetching emails. These sometimes can break icvon()
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* This file attempts to correct this by using a list of aliases and their mappings to supported iconv() encodings
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*/
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namespace Webklex\PHPIMAP;
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/**
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* Class EncodingAliases
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*
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* @package Webklex\PHPIMAP
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*/
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class EncodingAliases {
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/**
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* Contains email encoding mappings
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*
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* @var array
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*/
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private static array $aliases = [
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/*
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|--------------------------------------------------------------------------
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| Email encoding aliases
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|--------------------------------------------------------------------------
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| Email encoding aliases used to convert to iconv supported charsets
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| This Source Code Form is subject to the terms of the Mozilla Public
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| License, v. 2.0. If a copy of the MPL was not distributed with this
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| file, You can obtain one at http://mozilla.org/MPL/2.0/.
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| This Original Code has been modified by IBM Corporation.
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| Modifications made by IBM described herein are
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| Copyright (c) International Business Machines
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| Corporation, 1999
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| Modifications to Mozilla code or documentation
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| identified per MPL Section 3.3
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| Date Modified by Description of modification
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| 12/09/1999 IBM Corp. Support for IBM codepages - 850,852,855,857,862,864
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| Rule of this file:
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| 1. key should always be in lower case ascii so we can do case insensitive
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| comparison in the code faster.
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| 2. value should be the one used in unicode converter
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| 3. If the charset is not used for document charset, but font charset
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| (e.g. XLFD charset- such as JIS x0201, JIS x0208), don't put here
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*/
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"ascii" => "us-ascii",
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"us-ascii" => "us-ascii",
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"ansi_x3.4-1968" => "us-ascii",
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"646" => "us-ascii",
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"iso-8859-1" => "ISO-8859-1",
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"iso-8859-2" => "ISO-8859-2",
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"iso-8859-3" => "ISO-8859-3",
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"iso-8859-4" => "ISO-8859-4",
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"iso-8859-5" => "ISO-8859-5",
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"iso-8859-6" => "ISO-8859-6",
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"iso-8859-6-i" => "ISO-8859-6-I",
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"iso-8859-6-e" => "ISO-8859-6-E",
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"iso-8859-7" => "ISO-8859-7",
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"iso-8859-8" => "ISO-8859-8",
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"iso-8859-8-i" => "ISO-8859-8-I",
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"iso-8859-8-e" => "ISO-8859-8-E",
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"iso-8859-9" => "ISO-8859-9",
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"iso-8859-10" => "ISO-8859-10",
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"iso-8859-11" => "ISO-8859-11",
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"iso-8859-13" => "ISO-8859-13",
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"iso-8859-14" => "ISO-8859-14",
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"iso-8859-15" => "ISO-8859-15",
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"iso-8859-16" => "ISO-8859-16",
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"iso-ir-111" => "ISO-IR-111",
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"iso-2022-cn" => "ISO-2022-CN",
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"iso-2022-cn-ext" => "ISO-2022-CN",
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"iso-2022-kr" => "ISO-2022-KR",
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"iso-2022-jp" => "ISO-2022-JP",
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"utf-16be" => "UTF-16BE",
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"utf-16le" => "UTF-16LE",
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"utf-16" => "UTF-16",
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"windows-1250" => "windows-1250",
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"windows-1251" => "windows-1251",
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"windows-1252" => "windows-1252",
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"windows-1253" => "windows-1253",
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"windows-1254" => "windows-1254",
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"windows-1255" => "windows-1255",
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"windows-1256" => "windows-1256",
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"windows-1257" => "windows-1257",
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"windows-1258" => "windows-1258",
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"ibm866" => "IBM866",
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"ibm850" => "IBM850",
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"ibm852" => "IBM852",
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"ibm855" => "IBM855",
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"ibm857" => "IBM857",
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"ibm862" => "IBM862",
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"ibm864" => "IBM864",
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"utf-8" => "UTF-8",
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"utf-7" => "UTF-7",
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"utf-7-imap" => "UTF7-IMAP",
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"utf7-imap" => "UTF7-IMAP",
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"shift_jis" => "Shift_JIS",
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"big5" => "Big5",
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"euc-jp" => "EUC-JP",
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"euc-kr" => "EUC-KR",
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"gb2312" => "GB2312",
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"gb18030" => "gb18030",
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"viscii" => "VISCII",
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"koi8-r" => "KOI8-R",
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"koi8_r" => "KOI8-R",
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"cskoi8r" => "KOI8-R",
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"koi" => "KOI8-R",
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"koi8" => "KOI8-R",
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"koi8-u" => "KOI8-U",
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"tis-620" => "TIS-620",
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"t.61-8bit" => "T.61-8bit",
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"hz-gb-2312" => "HZ-GB-2312",
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"big5-hkscs" => "Big5-HKSCS",
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"gbk" => "gbk",
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"cns11643" => "x-euc-tw",
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//
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// Aliases for ISO-8859-1
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//
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"latin1" => "ISO-8859-1",
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"iso_8859-1" => "ISO-8859-1",
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"iso8859-1" => "ISO-8859-1",
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"iso8859-2" => "ISO-8859-2",
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"iso8859-3" => "ISO-8859-3",
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"iso8859-4" => "ISO-8859-4",
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"iso8859-5" => "ISO-8859-5",
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"iso8859-6" => "ISO-8859-6",
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"iso8859-7" => "ISO-8859-7",
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"iso8859-8" => "ISO-8859-8",
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"iso8859-9" => "ISO-8859-9",
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"iso8859-10" => "ISO-8859-10",
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"iso8859-11" => "ISO-8859-11",
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"iso8859-13" => "ISO-8859-13",
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"iso8859-14" => "ISO-8859-14",
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"iso8859-15" => "ISO-8859-15",
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"iso_8859-1:1987" => "ISO-8859-1",
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"iso-ir-100" => "ISO-8859-1",
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"l1" => "ISO-8859-1",
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"ibm819" => "ISO-8859-1",
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"cp819" => "ISO-8859-1",
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"csisolatin1" => "ISO-8859-1",
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//
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// Aliases for ISO-8859-2
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//
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"latin2" => "ISO-8859-2",
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"iso_8859-2" => "ISO-8859-2",
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"iso_8859-2:1987" => "ISO-8859-2",
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"iso-ir-101" => "ISO-8859-2",
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"l2" => "ISO-8859-2",
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"csisolatin2" => "ISO-8859-2",
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//
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// Aliases for ISO-8859-3
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//
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"latin3" => "ISO-8859-3",
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"iso_8859-3" => "ISO-8859-3",
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"iso_8859-3:1988" => "ISO-8859-3",
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"iso-ir-109" => "ISO-8859-3",
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"l3" => "ISO-8859-3",
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"csisolatin3" => "ISO-8859-3",
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//
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// Aliases for ISO-8859-4
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//
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"latin4" => "ISO-8859-4",
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"iso_8859-4" => "ISO-8859-4",
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"iso_8859-4:1988" => "ISO-8859-4",
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"iso-ir-110" => "ISO-8859-4",
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"l4" => "ISO-8859-4",
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"csisolatin4" => "ISO-8859-4",
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//
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// Aliases for ISO-8859-5
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//
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"cyrillic" => "ISO-8859-5",
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"iso_8859-5" => "ISO-8859-5",
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"iso_8859-5:1988" => "ISO-8859-5",
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"iso-ir-144" => "ISO-8859-5",
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"csisolatincyrillic" => "ISO-8859-5",
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//
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// Aliases for ISO-8859-6
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//
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"arabic" => "ISO-8859-6",
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"iso_8859-6" => "ISO-8859-6",
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"iso_8859-6:1987" => "ISO-8859-6",
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"iso-ir-127" => "ISO-8859-6",
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"ecma-114" => "ISO-8859-6",
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"asmo-708" => "ISO-8859-6",
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"csisolatinarabic" => "ISO-8859-6",
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//
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// Aliases for ISO-8859-6-I
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//
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"csiso88596i" => "ISO-8859-6-I",
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//
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// Aliases for ISO-8859-6-E",
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//
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"csiso88596e" => "ISO-8859-6-E",
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//
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// Aliases for ISO-8859-7",
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//
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"greek" => "ISO-8859-7",
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"greek8" => "ISO-8859-7",
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"sun_eu_greek" => "ISO-8859-7",
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"iso_8859-7" => "ISO-8859-7",
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"iso_8859-7:1987" => "ISO-8859-7",
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"iso-ir-126" => "ISO-8859-7",
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"elot_928" => "ISO-8859-7",
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"ecma-118" => "ISO-8859-7",
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"csisolatingreek" => "ISO-8859-7",
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//
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// Aliases for ISO-8859-8",
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//
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"hebrew" => "ISO-8859-8",
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"iso_8859-8" => "ISO-8859-8",
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"visual" => "ISO-8859-8",
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"iso_8859-8:1988" => "ISO-8859-8",
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"iso-ir-138" => "ISO-8859-8",
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"csisolatinhebrew" => "ISO-8859-8",
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//
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// Aliases for ISO-8859-8-I",
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//
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"csiso88598i" => "ISO-8859-8-I",
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"iso-8859-8i" => "ISO-8859-8-I",
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"logical" => "ISO-8859-8-I",
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//
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// Aliases for ISO-8859-8-E",
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//
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"csiso88598e" => "ISO-8859-8-E",
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//
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// Aliases for ISO-8859-9",
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//
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"latin5" => "ISO-8859-9",
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"iso_8859-9" => "ISO-8859-9",
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"iso_8859-9:1989" => "ISO-8859-9",
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"iso-ir-148" => "ISO-8859-9",
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"l5" => "ISO-8859-9",
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"csisolatin5" => "ISO-8859-9",
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//
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// Aliases for UTF-8",
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//
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"unicode-1-1-utf-8" => "UTF-8",
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// nl_langinfo(CODESET) in HP/UX returns 'utf8' under UTF-8 locales",
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"utf8" => "UTF-8",
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//
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// Aliases for Shift_JIS",
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//
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"x-sjis" => "Shift_JIS",
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"shift-jis" => "Shift_JIS",
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"ms_kanji" => "Shift_JIS",
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"csshiftjis" => "Shift_JIS",
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"windows-31j" => "Shift_JIS",
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"cp932" => "Shift_JIS",
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"sjis" => "Shift_JIS",
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//
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// Aliases for EUC_JP",
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//
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"cseucpkdfmtjapanese" => "EUC-JP",
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"x-euc-jp" => "EUC-JP",
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//
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// Aliases for ISO-2022-JP",
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//
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"csiso2022jp" => "ISO-2022-JP",
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// The following are really not aliases ISO-2022-JP, but sharing the same decoder",
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"iso-2022-jp-2" => "ISO-2022-JP",
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"csiso2022jp2" => "ISO-2022-JP",
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//
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// Aliases for Big5",
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//
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"csbig5" => "Big5",
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"cn-big5" => "Big5",
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// x-x-big5 is not really a alias for Big5, add it only for MS FrontPage",
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"x-x-big5" => "Big5",
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// Sun Solaris",
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"zh_tw-big5" => "Big5",
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//
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// Aliases for EUC-KR",
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//
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"cseuckr" => "EUC-KR",
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"ks_c_5601-1987" => "EUC-KR",
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"iso-ir-149" => "EUC-KR",
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"ks_c_5601-1989" => "EUC-KR",
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"ksc_5601" => "EUC-KR",
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"ksc5601" => "EUC-KR",
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"korean" => "EUC-KR",
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"csksc56011987" => "EUC-KR",
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"5601" => "EUC-KR",
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"windows-949" => "EUC-KR",
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//
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// Aliases for GB2312",
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//
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// The following are really not aliases GB2312, add them only for MS FrontPage",
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"gb_2312-80" => "GB2312",
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"iso-ir-58" => "GB2312",
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"chinese" => "GB2312",
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"csiso58gb231280" => "GB2312",
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"csgb2312" => "GB2312",
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"zh_cn.euc" => "GB2312",
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// Sun Solaris",
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"gb_2312" => "GB2312",
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//
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// Aliases for windows-125x ",
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//
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"x-cp1250" => "windows-1250",
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"x-cp1251" => "windows-1251",
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"x-cp1252" => "windows-1252",
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"x-cp1253" => "windows-1253",
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"x-cp1254" => "windows-1254",
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"x-cp1255" => "windows-1255",
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"x-cp1256" => "windows-1256",
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"x-cp1257" => "windows-1257",
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"x-cp1258" => "windows-1258",
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//
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// Aliases for windows-874 ",
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//
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"windows-874" => "windows-874",
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"ibm874" => "windows-874",
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"dos-874" => "windows-874",
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//
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// Aliases for macintosh",
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//
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"macintosh" => "macintosh",
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"x-mac-roman" => "macintosh",
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"mac" => "macintosh",
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"csmacintosh" => "macintosh",
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//
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// Aliases for IBM866",
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//
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"cp866" => "IBM866",
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"cp-866" => "IBM866",
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"866" => "IBM866",
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"csibm866" => "IBM866",
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//
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// Aliases for IBM850",
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//
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"cp850" => "IBM850",
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"850" => "IBM850",
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"csibm850" => "IBM850",
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//
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// Aliases for IBM852",
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//
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"cp852" => "IBM852",
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"852" => "IBM852",
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"csibm852" => "IBM852",
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//
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// Aliases for IBM855",
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//
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"cp855" => "IBM855",
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"855" => "IBM855",
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"csibm855" => "IBM855",
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//
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// Aliases for IBM857",
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//
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"cp857" => "IBM857",
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"857" => "IBM857",
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"csibm857" => "IBM857",
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//
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// Aliases for IBM862",
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//
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"cp862" => "IBM862",
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"862" => "IBM862",
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"csibm862" => "IBM862",
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//
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// Aliases for IBM864",
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//
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"cp864" => "IBM864",
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"864" => "IBM864",
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"csibm864" => "IBM864",
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"ibm-864" => "IBM864",
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//
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// Aliases for T.61-8bit",
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//
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"t.61" => "T.61-8bit",
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"iso-ir-103" => "T.61-8bit",
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"csiso103t618bit" => "T.61-8bit",
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//
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// Aliases for UTF-7",
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//
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"x-unicode-2-0-utf-7" => "UTF-7",
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"unicode-2-0-utf-7" => "UTF-7",
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"unicode-1-1-utf-7" => "UTF-7",
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"csunicode11utf7" => "UTF-7",
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//
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// Aliases for ISO-10646-UCS-2",
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//
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"csunicode" => "UTF-16BE",
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"csunicode11" => "UTF-16BE",
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"iso-10646-ucs-basic" => "UTF-16BE",
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"csunicodeascii" => "UTF-16BE",
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"iso-10646-unicode-latin1" => "UTF-16BE",
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"csunicodelatin1" => "UTF-16BE",
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"iso-10646" => "UTF-16BE",
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"iso-10646-j-1" => "UTF-16BE",
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//
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// Aliases for ISO-8859-10",
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//
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"latin6" => "ISO-8859-10",
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"iso-ir-157" => "ISO-8859-10",
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"l6" => "ISO-8859-10",
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// Currently .properties cannot handle : in key",
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//iso_8859-10:1992" => "ISO-8859-10",
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"csisolatin6" => "ISO-8859-10",
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//
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// Aliases for ISO-8859-15",
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//
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"iso_8859-15" => "ISO-8859-15",
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"csisolatin9" => "ISO-8859-15",
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"l9" => "ISO-8859-15",
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//
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// Aliases for ISO-IR-111",
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//
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"ecma-cyrillic" => "ISO-IR-111",
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"csiso111ecmacyrillic" => "ISO-IR-111",
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//
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// Aliases for ISO-2022-KR",
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//
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"csiso2022kr" => "ISO-2022-KR",
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//
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// Aliases for VISCII",
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//
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"csviscii" => "VISCII",
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//
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// Aliases for x-euc-tw",
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//
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"zh_tw-euc" => "x-euc-tw",
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//
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// Following names appears in unix nl_langinfo(CODESET)",
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// They can be compiled as platform specific if necessary",
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// DONT put things here if it does not look generic enough (like hp15CN)",
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//
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"iso88591" => "ISO-8859-1",
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"iso88592" => "ISO-8859-2",
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"iso88593" => "ISO-8859-3",
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"iso88594" => "ISO-8859-4",
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"iso88595" => "ISO-8859-5",
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"iso88596" => "ISO-8859-6",
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"iso88597" => "ISO-8859-7",
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"iso88598" => "ISO-8859-8",
|
|
"iso88599" => "ISO-8859-9",
|
|
"iso885910" => "ISO-8859-10",
|
|
"iso885911" => "ISO-8859-11",
|
|
"iso885912" => "ISO-8859-12",
|
|
"iso885913" => "ISO-8859-13",
|
|
"iso885914" => "ISO-8859-14",
|
|
"iso885915" => "ISO-8859-15",
|
|
"cp1250" => "windows-1250",
|
|
"cp1251" => "windows-1251",
|
|
"cp1252" => "windows-1252",
|
|
"cp1253" => "windows-1253",
|
|
"cp1254" => "windows-1254",
|
|
"cp1255" => "windows-1255",
|
|
"cp1256" => "windows-1256",
|
|
"cp1257" => "windows-1257",
|
|
"cp1258" => "windows-1258",
|
|
"x-gbk" => "gbk",
|
|
"windows-936" => "gbk",
|
|
"ansi-1251" => "windows-1251",
|
|
];
|
|
|
|
/**
|
|
* Returns proper encoding mapping, if exists. If it doesn't, return unchanged $encoding
|
|
* @param string|null $encoding
|
|
* @param string|null $fallback
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function get(?string $encoding, string $fallback = null): string {
|
|
if (isset(self::$aliases[strtolower($encoding ?? '')])) {
|
|
return self::$aliases[strtolower($encoding ?? '')];
|
|
}
|
|
return $fallback ?: $encoding;
|
|
}
|
|
|
|
|
|
/**
|
|
* Convert the encoding of a string
|
|
* @param $str
|
|
* @param string $from
|
|
* @param string $to
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public static function convert($str, string $from = "ISO-8859-2", string $to = "UTF-8"): mixed {
|
|
$from = self::get($from, self::detectEncoding($str));
|
|
$to = self::get($to, self::detectEncoding($str));
|
|
|
|
if ($from === $to) {
|
|
return $str;
|
|
}
|
|
|
|
// We don't need to do convertEncoding() if charset is ASCII (us-ascii):
|
|
// ASCII is a subset of UTF-8, so all ASCII files are already UTF-8 encoded
|
|
// https://stackoverflow.com/a/11303410
|
|
//
|
|
// us-ascii is the same as ASCII:
|
|
// ASCII is the traditional name for the encoding system; the Internet Assigned Numbers Authority (IANA)
|
|
// prefers the updated name US-ASCII, which clarifies that this system was developed in the US and
|
|
// based on the typographical symbols predominantly in use there.
|
|
// https://en.wikipedia.org/wiki/ASCII
|
|
//
|
|
// convertEncoding() function basically means convertToUtf8(), so when we convert ASCII string into UTF-8 it gets broken.
|
|
if (strtolower($from) == 'us-ascii' && $to == 'UTF-8') {
|
|
return $str;
|
|
}
|
|
|
|
try {
|
|
if (function_exists('iconv') && !self::isUtf7($from) && !self::isUtf7($to)) {
|
|
return iconv($from, $to, $str);
|
|
}
|
|
if (!$from) {
|
|
return mb_convert_encoding($str, $to);
|
|
}
|
|
return mb_convert_encoding($str, $to, $from);
|
|
} catch (\Exception $e) {
|
|
if (str_contains($from, '-')) {
|
|
$from = str_replace('-', '', $from);
|
|
return self::convert($str, $from, $to);
|
|
}
|
|
return $str;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Attempts to detect the encoding of a string
|
|
* @param string $string
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function detectEncoding(string $string): string {
|
|
$encoding = mb_detect_encoding($string, array_filter(self::getEncodings(), function($value){
|
|
return !in_array($value, [
|
|
'ISO-8859-6-I', 'ISO-8859-6-E', 'ISO-8859-8-I', 'ISO-8859-8-E',
|
|
'ISO-8859-11', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16', 'ISO-IR-111',"ISO-2022-CN",
|
|
"windows-1250", "windows-1253", "windows-1255", "windows-1256", "windows-1257", "windows-1258",
|
|
"IBM852", "IBM855", "IBM857", "IBM866", "IBM864", "IBM862", "KOI8-R", "KOI8-U",
|
|
"TIS-620", "ISO-8859-1", "ISO-8859-2", "ISO-8859-3", "ISO-8859-4",
|
|
"VISCII", "T.61-8bit", "Big5-HKSCS", "windows-874", "macintosh", "ISO-8859-12", "ISO-8859-7",
|
|
"IMAP-UTF-7"
|
|
]);
|
|
}), true);
|
|
if ($encoding === false) {
|
|
$encoding = 'UTF-8';
|
|
}
|
|
return $encoding;
|
|
}
|
|
|
|
/**
|
|
* Returns all available encodings
|
|
*
|
|
* @return array
|
|
*/
|
|
public static function getEncodings(): array {
|
|
$encodings = [];
|
|
foreach (self::$aliases as $encoding) {
|
|
if (!in_array($encoding, $encodings)) {
|
|
$encodings[] = $encoding;
|
|
}
|
|
}
|
|
return $encodings;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the encoding is UTF-7 like
|
|
* @param string $encoding
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isUtf7(string $encoding): bool {
|
|
return str_contains(str_replace("-", "", strtolower($encoding)), "utf7");
|
|
}
|
|
|
|
/**
|
|
* Check if an encoding is supported
|
|
* @param string $encoding
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function has(string $encoding): bool {
|
|
return isset(self::$aliases[strtolower($encoding)]);
|
|
}
|
|
}
|