6f4c5e36e6
Language\Encoding::__mbMimeEncode -> Convert\MimeEncode::__mbMimeEncode Langauge\Encoding::checkConvertEncoding -> Check\Encoding::checkConvertEncoding Langauge\Encoding::setErrorChar -> Check\Encoding::setErrorChar Langauge\Encoding::getErrorChar -> Encoding::getErrorChar Langauge\Encoding::convertEncoding -> Convert\Encoding::convertEncoding Also fixed encoding check that not only a code point but a string can also be used as a parameter. Update phpunit tests and split them out for each class Normal test page is still combined for all classes but updated to correctly use each class
68 lines
2.0 KiB
PHP
68 lines
2.0 KiB
PHP
<?php
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/*
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* alternate for header mime encode to void problems with long strings and
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* spaces/strange encoding problems.
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* Orignal issues during PHP5/7
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*/
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declare(strict_types=1);
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namespace CoreLibs\Convert;
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class MimeEncode
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{
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/**
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* wrapper function for mb mime convert
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* for correct conversion with long strings
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*
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* @param string $string string to encode
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* @param string $encoding target encoding
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* @param string $line_break default line break is \r\n
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* @return string encoded string
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*/
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public static function __mbMimeEncode(
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string $string,
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string $encoding,
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string $line_break = "\r\n"
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): string {
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// set internal encoding, so the mimeheader encode works correctly
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mb_internal_encoding($encoding);
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// if a subject, make a work around for the broken mb_mimencode
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$pos = 0;
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// after 36 single bytes characters,
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// if then comes MB, it is broken
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// has to 2 x 36 < 74 so the mb_encode_mimeheader
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// 74 hardcoded split does not get triggered
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$split = 36;
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$_string = '';
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while ($pos < mb_strlen($string, $encoding)) {
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$output = mb_strimwidth($string, $pos, $split, "", $encoding);
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$pos += mb_strlen($output, $encoding);
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// if the strinlen is 0 here, get out of the loop
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if (!mb_strlen($output, $encoding)) {
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$pos += mb_strlen($string, $encoding);
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}
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$_string_encoded = mb_encode_mimeheader($output, $encoding);
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// only make linebreaks if we have mime encoded code inside
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// the space only belongs in the second line
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if ($_string && preg_match("/^=\?/", $_string_encoded)) {
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$_string .= $line_break . " ";
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} elseif (
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// hack for plain text with space at the end
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mb_strlen($output, $encoding) == $split &&
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mb_substr($output, -1, 1, $encoding) == " "
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) {
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// if output ends with space, add one more
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$_string_encoded .= " ";
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}
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$_string .= $_string_encoded;
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}
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// strip out any spaces BEFORE a line break
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$string = str_replace(" " . $line_break, $line_break, $_string);
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return $string;
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}
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}
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// __END__
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