← All changes | back/Helpers/EncodingHelper.php +174 -0 10.10.1 → 11.1.0 View file →

		@@ -1,0 +1,174 @@
	1	+<?php
	2	+
	3	+namespace AcyMailing\Helpers;
	4	+
	5	+defined('ABSPATH') || die('Restricted Access');
	6	+
	7	+use AcyMailing\Core\AcymObject;
	8	+use AcyMailing\Types\CharsetType;
	9	+
	10	+class EncodingHelper extends AcymObject
	11	+{
	12	+ public function change(string $data, string $inputCharset, string $outputCharset): string
	13	+ {
	14	+ $inputCharset = strtoupper(trim($inputCharset));
	15	+ $outputCharset = strtoupper(trim($outputCharset));
	16	+
	17	+ $supportedEncodings = [
	18	+ 'BIG5',
	19	+ 'ISO-8859-1',
	20	+ 'ISO-8859-2',
	21	+ 'ISO-8859-3',
	22	+ 'ISO-8859-4',
	23	+ 'ISO-8859-5',
	24	+ 'ISO-8859-6',
	25	+ 'ISO-8859-7',
	26	+ 'ISO-8859-8',
	27	+ 'ISO-8859-9',
	28	+ 'ISO-8859-10',
	29	+ 'ISO-8859-13',
	30	+ 'ISO-8859-14',
	31	+ 'ISO-8859-15',
	32	+ 'ISO-2022-JP',
	33	+ 'US-ASCII',
	34	+ 'UTF-7',
	35	+ 'UTF-8',
	36	+ 'UTF-16',
	37	+ 'WINDOWS-1251',
	38	+ 'WINDOWS-1252',
	39	+ 'ARMSCII-8',
	40	+ 'ISO-8859-16',
	41	+ ];
	42	+ if (!in_array($inputCharset, $supportedEncodings)) {
	43	+ acym_enqueueMessage(acym_translationSprintf('ACYM_ENCODING_NOT_SUPPORTED_X', $inputCharset), 'error');
	44	+ } elseif (!in_array($outputCharset, $supportedEncodings)) {
	45	+ acym_enqueueMessage(acym_translationSprintf('ACYM_ENCODING_NOT_SUPPORTED_X', $outputCharset), 'error');
	46	+ }
	47	+
	48	+ if ($inputCharset == $outputCharset) {
	49	+ return $data;
	50	+ }
	51	+
	52	+ if ($inputCharset === 'UTF-8' && $outputCharset === 'ISO-8859-1') {
	53	+ $data = str_replace(['€', '„', '“'], ['EUR', '"', '"'], $data);
	54	+ }
	55	+
	56	+ if (function_exists('iconv')) {
	57	+ // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler -- Catching iconv errors for clean handling.
	58	+ set_error_handler('AcyMailing\Helpers\acym_errorHandlerEncoding');
	59	+ $encodedData = iconv($inputCharset, $outputCharset.'//IGNORE', $data);
	60	+ restore_error_handler();
	61	+ //Sometimes the function does not return error but remove the whole content...
	62	+ if (!empty($encodedData) && !acym_errorHandlerEncoding(-1)) {
	63	+ return $encodedData;
	64	+ }
	65	+ }
	66	+
	67	+ if (function_exists('mb_convert_encoding')) {
	68	+ return mb_convert_encoding($data, $outputCharset, $inputCharset);
	69	+ }
	70	+
	71	+ if ($inputCharset === 'UTF-8' && $outputCharset === 'ISO-8859-1') {
	72	+ return acym_utf8Decode($data);
	73	+ }
	74	+
	75	+ if ($inputCharset === 'ISO-8859-1' && $outputCharset === 'UTF-8') {
	76	+ return acym_utf8Encode($data);
	77	+ }
	78	+
	79	+ return $data;
	80	+ }
	81	+
	82	+ public function detectEncoding(string &$content): string
	83	+ {
	84	+ if (!function_exists('mb_check_encoding')) {
	85	+ return '';
	86	+ }
	87	+
	88	+ $toTest = ['UTF-8'];
	89	+ //Depending on the current language, we test based on other charset...
	90	+
	91	+ $tag = acym_getLanguageTag();
	92	+
	93	+ // If you're greek, we check based on the greek charset first!
	94	+ if ($tag == 'el-GR') {
	95	+ $toTest[] = 'ISO-8859-7';
	96	+ }
	97	+ $toTest[] = 'ISO-8859-1';
	98	+ $toTest[] = 'ISO-8859-2';
	99	+ $toTest[] = 'Windows-1252';
	100	+
	101	+ foreach ($toTest as $oneEncoding) {
	102	+ if (mb_check_encoding($content, $oneEncoding)) {
	103	+ return $oneEncoding;
	104	+ }
	105	+ }
	106	+
	107	+ // Could not detect it...
	108	+ return '';
	109	+ }
	110	+
	111	+ public function encodingField(string $name, string $selected): void
	112	+ {
	113	+ acym_select(
	114	+ [
	115	+ 'binary' => 'Binary',
	116	+ 'quoted' => 'Quoted-printable',
	117	+ '7bit' => '7 Bit',
	118	+ '8bit' => '8 Bit',
	119	+ 'base64' => 'Base 64',
	120	+ ],
	121	+ $name,
	122	+ $selected,
	123	+ [
	124	+ 'class' => 'acym__select',
	125	+ 'acym-data-infinite' => '',
	126	+ 'style' => 'max-width: 200px;',
	127	+ ],
	128	+ '',
	129	+ '',
	130	+ 'config_encoding',
	131	+ false,
	132	+ true
	133	+ );
	134	+ }
	135	+
	136	+ public function charsetField(string $name, string $selected, array $attribs = [], bool $display = false): string
	137	+ {
	138	+ $charsetType = new CharsetType();
	139	+
	140	+ return acym_select(
	141	+ $charsetType->charsets,
	142	+ $name,
	143	+ $selected,
	144	+ $attribs,
	145	+ '',
	146	+ '',
	147	+ null,
	148	+ false,
	149	+ $display
	150	+ );
	151	+ }
	152	+}
	153	+
	154	+/**
	155	+ * Logs the errors happening in the iconv function in order to know if we can use its result or not
	156	+ *
	157	+ * @return bool true if an error occurred
	158	+ */
	159	+function acym_errorHandlerEncoding(int $errno, string $errstr = ''): bool
	160	+{
	161	+ static $error = false;
	162	+ if ($errno === -1) {
	163	+ //return the value of the static flag and re init it
	164	+ $currentError = $error;
	165	+ $error = false;
	166	+
	167	+ return $currentError;
	168	+ }
	169	+ //set the satic flag
	170	+ $error = true;
	171	+
	172	+ //no need to display the notice
	173	+ return true;
	174	+}