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-rw-r--r--vendor/symfony/mime/Encoder/AddressEncoderInterface.php30
-rw-r--r--vendor/symfony/mime/Encoder/Base64ContentEncoder.php50
-rw-r--r--vendor/symfony/mime/Encoder/Base64Encoder.php43
-rw-r--r--vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php45
-rw-r--r--vendor/symfony/mime/Encoder/ContentEncoderInterface.php32
-rw-r--r--vendor/symfony/mime/Encoder/EightBitContentEncoder.php37
-rw-r--r--vendor/symfony/mime/Encoder/EncoderInterface.php28
-rw-r--r--vendor/symfony/mime/Encoder/IdnAddressEncoder.php56
-rw-r--r--vendor/symfony/mime/Encoder/MimeHeaderEncoderInterface.php25
-rw-r--r--vendor/symfony/mime/Encoder/QpContentEncoder.php66
-rw-r--r--vendor/symfony/mime/Encoder/QpEncoder.php197
-rw-r--r--vendor/symfony/mime/Encoder/QpMimeHeaderEncoder.php42
-rw-r--r--vendor/symfony/mime/Encoder/Rfc2231Encoder.php52
13 files changed, 703 insertions, 0 deletions
diff --git a/vendor/symfony/mime/Encoder/AddressEncoderInterface.php b/vendor/symfony/mime/Encoder/AddressEncoderInterface.php
new file mode 100644
index 0000000000..5d6ea3c66a
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/AddressEncoderInterface.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+use Symfony\Component\Mime\Exception\AddressEncoderException;
+
+/**
+ * @author Christian Schmidt
+ *
+ * @experimental in 4.3
+ */
+interface AddressEncoderInterface
+{
+ /**
+ * Encodes an email address.
+ *
+ * @throws AddressEncoderException if the email cannot be represented in
+ * the encoding implemented by this class
+ */
+ public function encodeString(string $address): string;
+}
diff --git a/vendor/symfony/mime/Encoder/Base64ContentEncoder.php b/vendor/symfony/mime/Encoder/Base64ContentEncoder.php
new file mode 100644
index 0000000000..e9c352e20e
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/Base64ContentEncoder.php
@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+use Symfony\Component\Mime\Exception\RuntimeException;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @experimental in 4.3
+ */
+final class Base64ContentEncoder extends Base64Encoder implements ContentEncoderInterface
+{
+ public function encodeByteStream($stream, int $maxLineLength = 0): iterable
+ {
+ if (!\is_resource($stream)) {
+ throw new \TypeError(sprintf('Method "%s" takes a stream as a first argument.', __METHOD__));
+ }
+
+ $filter = stream_filter_append($stream, 'convert.base64-encode', \STREAM_FILTER_READ, [
+ 'line-length' => 0 >= $maxLineLength || 76 < $maxLineLength ? 76 : $maxLineLength,
+ 'line-break-chars' => "\r\n",
+ ]);
+ if (!\is_resource($filter)) {
+ throw new RuntimeException('Unable to set the base64 content encoder to the filter.');
+ }
+
+ if (stream_get_meta_data($stream)['seekable'] ?? false) {
+ rewind($stream);
+ }
+ while (!feof($stream)) {
+ yield fread($stream, 8192);
+ }
+ stream_filter_remove($filter);
+ }
+
+ public function getName(): string
+ {
+ return 'base64';
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/Base64Encoder.php b/vendor/symfony/mime/Encoder/Base64Encoder.php
new file mode 100644
index 0000000000..25dae670b1
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/Base64Encoder.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+class Base64Encoder implements EncoderInterface
+{
+ /**
+ * Takes an unencoded string and produces a Base64 encoded string from it.
+ *
+ * Base64 encoded strings have a maximum line length of 76 characters.
+ * If the first line needs to be shorter, indicate the difference with
+ * $firstLineOffset.
+ */
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ if (0 >= $maxLineLength || 76 < $maxLineLength) {
+ $maxLineLength = 76;
+ }
+
+ $encodedString = base64_encode($string);
+ $firstLine = '';
+ if (0 !== $firstLineOffset) {
+ $firstLine = substr($encodedString, 0, $maxLineLength - $firstLineOffset)."\r\n";
+ $encodedString = substr($encodedString, $maxLineLength - $firstLineOffset);
+ }
+
+ return $firstLine.trim(chunk_split($encodedString, $maxLineLength, "\r\n"));
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php b/vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php
new file mode 100644
index 0000000000..8baee5b02e
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php
@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+final class Base64MimeHeaderEncoder extends Base64Encoder implements MimeHeaderEncoderInterface
+{
+ public function getName(): string
+ {
+ return 'B';
+ }
+
+ /**
+ * Takes an unencoded string and produces a Base64 encoded string from it.
+ *
+ * If the charset is iso-2022-jp, it uses mb_encode_mimeheader instead of
+ * default encodeString, otherwise pass to the parent method.
+ */
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ if ('iso-2022-jp' === strtolower($charset)) {
+ $old = mb_internal_encoding();
+ mb_internal_encoding('utf-8');
+ $newstring = mb_encode_mimeheader($string, 'iso-2022-jp', $this->getName(), "\r\n");
+ mb_internal_encoding($old);
+
+ return $newstring;
+ }
+
+ return parent::encodeString($string, $charset, $firstLineOffset, $maxLineLength);
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/ContentEncoderInterface.php b/vendor/symfony/mime/Encoder/ContentEncoderInterface.php
new file mode 100644
index 0000000000..b44e1a4a71
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/ContentEncoderInterface.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+interface ContentEncoderInterface extends EncoderInterface
+{
+ /**
+ * Encodes the stream to a Generator.
+ *
+ * @param resource $stream
+ */
+ public function encodeByteStream($stream, int $maxLineLength = 0): iterable;
+
+ /**
+ * Gets the MIME name of this content encoding scheme.
+ */
+ public function getName(): string;
+}
diff --git a/vendor/symfony/mime/Encoder/EightBitContentEncoder.php b/vendor/symfony/mime/Encoder/EightBitContentEncoder.php
new file mode 100644
index 0000000000..94b838ce60
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/EightBitContentEncoder.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @experimental in 4.3
+ */
+final class EightBitContentEncoder implements ContentEncoderInterface
+{
+ public function encodeByteStream($stream, int $maxLineLength = 0): iterable
+ {
+ while (!feof($stream)) {
+ yield fread($stream, 16372);
+ }
+ }
+
+ public function getName(): string
+ {
+ return '8bit';
+ }
+
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ return $string;
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/EncoderInterface.php b/vendor/symfony/mime/Encoder/EncoderInterface.php
new file mode 100644
index 0000000000..3c2ef198e5
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/EncoderInterface.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+interface EncoderInterface
+{
+ /**
+ * Encode a given string to produce an encoded string.
+ *
+ * @param int $firstLineOffset if first line needs to be shorter
+ * @param int $maxLineLength - 0 indicates the default length for this encoding
+ */
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string;
+}
diff --git a/vendor/symfony/mime/Encoder/IdnAddressEncoder.php b/vendor/symfony/mime/Encoder/IdnAddressEncoder.php
new file mode 100644
index 0000000000..8936047ceb
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/IdnAddressEncoder.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+use Symfony\Component\Mime\Exception\AddressEncoderException;
+
+/**
+ * An IDN email address encoder.
+ *
+ * Encodes the domain part of an address using IDN. This is compatible will all
+ * SMTP servers.
+ *
+ * This encoder does not support email addresses with non-ASCII characters in
+ * local-part (the substring before @). To send to such addresses, use
+ * Utf8AddressEncoder together with SmtpUtf8Handler. Your outbound SMTP server must support
+ * the SMTPUTF8 extension.
+ *
+ * @author Christian Schmidt
+ *
+ * @experimental in 4.3
+ */
+final class IdnAddressEncoder implements AddressEncoderInterface
+{
+ /**
+ * Encodes the domain part of an address using IDN.
+ *
+ * @throws AddressEncoderException If local-part contains non-ASCII characters
+ */
+ public function encodeString(string $address): string
+ {
+ $i = strrpos($address, '@');
+ if (false !== $i) {
+ $local = substr($address, 0, $i);
+ $domain = substr($address, $i + 1);
+
+ if (preg_match('/[^\x00-\x7F]/', $local)) {
+ throw new AddressEncoderException(sprintf('Non-ASCII characters not supported in local-part os "%s".', $address));
+ }
+
+ if (preg_match('/[^\x00-\x7F]/', $domain)) {
+ $address = sprintf('%s@%s', $local, idn_to_ascii($domain, 0, INTL_IDNA_VARIANT_UTS46));
+ }
+ }
+
+ return $address;
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/MimeHeaderEncoderInterface.php b/vendor/symfony/mime/Encoder/MimeHeaderEncoderInterface.php
new file mode 100644
index 0000000000..f5756650ca
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/MimeHeaderEncoderInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+interface MimeHeaderEncoderInterface
+{
+ /**
+ * Get the MIME name of this content encoding scheme.
+ */
+ public function getName(): string;
+}
diff --git a/vendor/symfony/mime/Encoder/QpContentEncoder.php b/vendor/symfony/mime/Encoder/QpContentEncoder.php
new file mode 100644
index 0000000000..ef2de46f0b
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/QpContentEncoder.php
@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Lars Strojny
+ *
+ * @experimental in 4.3
+ */
+final class QpContentEncoder implements ContentEncoderInterface
+{
+ public function encodeByteStream($stream, int $maxLineLength = 0): iterable
+ {
+ if (!\is_resource($stream)) {
+ throw new \TypeError(sprintf('Method "%s" takes a stream as a first argument.', __METHOD__));
+ }
+
+ // we don't use PHP stream filters here as the content should be small enough
+ if (stream_get_meta_data($stream)['seekable'] ?? false) {
+ rewind($stream);
+ }
+
+ yield $this->encodeString(stream_get_contents($stream), 'utf-8', 0, $maxLineLength);
+ }
+
+ public function getName(): string
+ {
+ return 'quoted-printable';
+ }
+
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ return $this->standardize(quoted_printable_encode($string));
+ }
+
+ /**
+ * Make sure CRLF is correct and HT/SPACE are in valid places.
+ */
+ private function standardize(string $string): string
+ {
+ // transform CR or LF to CRLF
+ $string = preg_replace('~=0D(?!=0A)|(?<!=0D)=0A~', '=0D=0A', $string);
+ // transform =0D=0A to CRLF
+ $string = str_replace(["\t=0D=0A", ' =0D=0A', '=0D=0A'], ["=09\r\n", "=20\r\n", "\r\n"], $string);
+
+ switch (\ord(substr($string, -1))) {
+ case 0x09:
+ $string = substr_replace($string, '=09', -1);
+ break;
+ case 0x20:
+ $string = substr_replace($string, '=20', -1);
+ break;
+ }
+
+ return $string;
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/QpEncoder.php b/vendor/symfony/mime/Encoder/QpEncoder.php
new file mode 100644
index 0000000000..4ffbaed78e
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/QpEncoder.php
@@ -0,0 +1,197 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+use Symfony\Component\Mime\CharacterStream;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+class QpEncoder implements EncoderInterface
+{
+ /**
+ * Pre-computed QP for HUGE optimization.
+ */
+ private static $qpMap = [
+ 0 => '=00', 1 => '=01', 2 => '=02', 3 => '=03', 4 => '=04',
+ 5 => '=05', 6 => '=06', 7 => '=07', 8 => '=08', 9 => '=09',
+ 10 => '=0A', 11 => '=0B', 12 => '=0C', 13 => '=0D', 14 => '=0E',
+ 15 => '=0F', 16 => '=10', 17 => '=11', 18 => '=12', 19 => '=13',
+ 20 => '=14', 21 => '=15', 22 => '=16', 23 => '=17', 24 => '=18',
+ 25 => '=19', 26 => '=1A', 27 => '=1B', 28 => '=1C', 29 => '=1D',
+ 30 => '=1E', 31 => '=1F', 32 => '=20', 33 => '=21', 34 => '=22',
+ 35 => '=23', 36 => '=24', 37 => '=25', 38 => '=26', 39 => '=27',
+ 40 => '=28', 41 => '=29', 42 => '=2A', 43 => '=2B', 44 => '=2C',
+ 45 => '=2D', 46 => '=2E', 47 => '=2F', 48 => '=30', 49 => '=31',
+ 50 => '=32', 51 => '=33', 52 => '=34', 53 => '=35', 54 => '=36',
+ 55 => '=37', 56 => '=38', 57 => '=39', 58 => '=3A', 59 => '=3B',
+ 60 => '=3C', 61 => '=3D', 62 => '=3E', 63 => '=3F', 64 => '=40',
+ 65 => '=41', 66 => '=42', 67 => '=43', 68 => '=44', 69 => '=45',
+ 70 => '=46', 71 => '=47', 72 => '=48', 73 => '=49', 74 => '=4A',
+ 75 => '=4B', 76 => '=4C', 77 => '=4D', 78 => '=4E', 79 => '=4F',
+ 80 => '=50', 81 => '=51', 82 => '=52', 83 => '=53', 84 => '=54',
+ 85 => '=55', 86 => '=56', 87 => '=57', 88 => '=58', 89 => '=59',
+ 90 => '=5A', 91 => '=5B', 92 => '=5C', 93 => '=5D', 94 => '=5E',
+ 95 => '=5F', 96 => '=60', 97 => '=61', 98 => '=62', 99 => '=63',
+ 100 => '=64', 101 => '=65', 102 => '=66', 103 => '=67', 104 => '=68',
+ 105 => '=69', 106 => '=6A', 107 => '=6B', 108 => '=6C', 109 => '=6D',
+ 110 => '=6E', 111 => '=6F', 112 => '=70', 113 => '=71', 114 => '=72',
+ 115 => '=73', 116 => '=74', 117 => '=75', 118 => '=76', 119 => '=77',
+ 120 => '=78', 121 => '=79', 122 => '=7A', 123 => '=7B', 124 => '=7C',
+ 125 => '=7D', 126 => '=7E', 127 => '=7F', 128 => '=80', 129 => '=81',
+ 130 => '=82', 131 => '=83', 132 => '=84', 133 => '=85', 134 => '=86',
+ 135 => '=87', 136 => '=88', 137 => '=89', 138 => '=8A', 139 => '=8B',
+ 140 => '=8C', 141 => '=8D', 142 => '=8E', 143 => '=8F', 144 => '=90',
+ 145 => '=91', 146 => '=92', 147 => '=93', 148 => '=94', 149 => '=95',
+ 150 => '=96', 151 => '=97', 152 => '=98', 153 => '=99', 154 => '=9A',
+ 155 => '=9B', 156 => '=9C', 157 => '=9D', 158 => '=9E', 159 => '=9F',
+ 160 => '=A0', 161 => '=A1', 162 => '=A2', 163 => '=A3', 164 => '=A4',
+ 165 => '=A5', 166 => '=A6', 167 => '=A7', 168 => '=A8', 169 => '=A9',
+ 170 => '=AA', 171 => '=AB', 172 => '=AC', 173 => '=AD', 174 => '=AE',
+ 175 => '=AF', 176 => '=B0', 177 => '=B1', 178 => '=B2', 179 => '=B3',
+ 180 => '=B4', 181 => '=B5', 182 => '=B6', 183 => '=B7', 184 => '=B8',
+ 185 => '=B9', 186 => '=BA', 187 => '=BB', 188 => '=BC', 189 => '=BD',
+ 190 => '=BE', 191 => '=BF', 192 => '=C0', 193 => '=C1', 194 => '=C2',
+ 195 => '=C3', 196 => '=C4', 197 => '=C5', 198 => '=C6', 199 => '=C7',
+ 200 => '=C8', 201 => '=C9', 202 => '=CA', 203 => '=CB', 204 => '=CC',
+ 205 => '=CD', 206 => '=CE', 207 => '=CF', 208 => '=D0', 209 => '=D1',
+ 210 => '=D2', 211 => '=D3', 212 => '=D4', 213 => '=D5', 214 => '=D6',
+ 215 => '=D7', 216 => '=D8', 217 => '=D9', 218 => '=DA', 219 => '=DB',
+ 220 => '=DC', 221 => '=DD', 222 => '=DE', 223 => '=DF', 224 => '=E0',
+ 225 => '=E1', 226 => '=E2', 227 => '=E3', 228 => '=E4', 229 => '=E5',
+ 230 => '=E6', 231 => '=E7', 232 => '=E8', 233 => '=E9', 234 => '=EA',
+ 235 => '=EB', 236 => '=EC', 237 => '=ED', 238 => '=EE', 239 => '=EF',
+ 240 => '=F0', 241 => '=F1', 242 => '=F2', 243 => '=F3', 244 => '=F4',
+ 245 => '=F5', 246 => '=F6', 247 => '=F7', 248 => '=F8', 249 => '=F9',
+ 250 => '=FA', 251 => '=FB', 252 => '=FC', 253 => '=FD', 254 => '=FE',
+ 255 => '=FF',
+ ];
+
+ private static $safeMapShare = [];
+
+ /**
+ * A map of non-encoded ascii characters.
+ *
+ * @var string[]
+ *
+ * @internal
+ */
+ protected $safeMap = [];
+
+ public function __construct()
+ {
+ $id = \get_class($this);
+ if (!isset(self::$safeMapShare[$id])) {
+ $this->initSafeMap();
+ self::$safeMapShare[$id] = $this->safeMap;
+ } else {
+ $this->safeMap = self::$safeMapShare[$id];
+ }
+ }
+
+ protected function initSafeMap(): void
+ {
+ foreach (array_merge([0x09, 0x20], range(0x21, 0x3C), range(0x3E, 0x7E)) as $byte) {
+ $this->safeMap[$byte] = \chr($byte);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * Takes an unencoded string and produces a QP encoded string from it.
+ *
+ * QP encoded strings have a maximum line length of 76 characters.
+ * If the first line needs to be shorter, indicate the difference with
+ * $firstLineOffset.
+ */
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ if ($maxLineLength > 76 || $maxLineLength <= 0) {
+ $maxLineLength = 76;
+ }
+
+ $thisLineLength = $maxLineLength - $firstLineOffset;
+
+ $lines = [];
+ $lNo = 0;
+ $lines[$lNo] = '';
+ $currentLine = &$lines[$lNo++];
+ $size = $lineLen = 0;
+ $charStream = new CharacterStream($string, $charset);
+
+ // Fetching more than 4 chars at one is slower, as is fetching fewer bytes
+ // Conveniently 4 chars is the UTF-8 safe number since UTF-8 has up to 6
+ // bytes per char and (6 * 4 * 3 = 72 chars per line) * =NN is 3 bytes
+ while (null !== $bytes = $charStream->readBytes(4)) {
+ $enc = $this->encodeByteSequence($bytes, $size);
+
+ $i = strpos($enc, '=0D=0A');
+ $newLineLength = $lineLen + (false === $i ? $size : $i);
+
+ if ($currentLine && $newLineLength >= $thisLineLength) {
+ $lines[$lNo] = '';
+ $currentLine = &$lines[$lNo++];
+ $thisLineLength = $maxLineLength;
+ $lineLen = 0;
+ }
+
+ $currentLine .= $enc;
+
+ if (false === $i) {
+ $lineLen += $size;
+ } else {
+ // 6 is the length of '=0D=0A'.
+ $lineLen = $size - strrpos($enc, '=0D=0A') - 6;
+ }
+ }
+
+ return $this->standardize(implode("=\r\n", $lines));
+ }
+
+ /**
+ * Encode the given byte array into a verbatim QP form.
+ */
+ private function encodeByteSequence(array $bytes, int &$size): string
+ {
+ $ret = '';
+ $size = 0;
+ foreach ($bytes as $b) {
+ if (isset($this->safeMap[$b])) {
+ $ret .= $this->safeMap[$b];
+ ++$size;
+ } else {
+ $ret .= self::$qpMap[$b];
+ $size += 3;
+ }
+ }
+
+ return $ret;
+ }
+
+ /**
+ * Make sure CRLF is correct and HT/SPACE are in valid places.
+ */
+ private function standardize(string $string): string
+ {
+ $string = str_replace(["\t=0D=0A", ' =0D=0A', '=0D=0A'], ["=09\r\n", "=20\r\n", "\r\n"], $string);
+ switch ($end = \ord(substr($string, -1))) {
+ case 0x09:
+ case 0x20:
+ $string = substr_replace($string, self::$qpMap[$end], -1);
+ }
+
+ return $string;
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/QpMimeHeaderEncoder.php b/vendor/symfony/mime/Encoder/QpMimeHeaderEncoder.php
new file mode 100644
index 0000000000..0413959587
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/QpMimeHeaderEncoder.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+final class QpMimeHeaderEncoder extends QpEncoder implements MimeHeaderEncoderInterface
+{
+ protected function initSafeMap(): void
+ {
+ foreach (array_merge(
+ range(0x61, 0x7A), range(0x41, 0x5A),
+ range(0x30, 0x39), [0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F]
+ ) as $byte) {
+ $this->safeMap[$byte] = \chr($byte);
+ }
+ }
+
+ public function getName(): string
+ {
+ return 'Q';
+ }
+
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ return str_replace([' ', '=20', "=\r\n"], ['_', '_', "\r\n"],
+ parent::encodeString($string, $charset, $firstLineOffset, $maxLineLength)
+ );
+ }
+}
diff --git a/vendor/symfony/mime/Encoder/Rfc2231Encoder.php b/vendor/symfony/mime/Encoder/Rfc2231Encoder.php
new file mode 100644
index 0000000000..4743a7217c
--- /dev/null
+++ b/vendor/symfony/mime/Encoder/Rfc2231Encoder.php
@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mime\Encoder;
+
+use Symfony\Component\Mime\CharacterStream;
+
+/**
+ * @author Chris Corbyn
+ *
+ * @experimental in 4.3
+ */
+final class Rfc2231Encoder implements EncoderInterface
+{
+ /**
+ * Takes an unencoded string and produces a string encoded according to RFC 2231 from it.
+ */
+ public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
+ {
+ $lines = [];
+ $lineCount = 0;
+ $lines[] = '';
+ $currentLine = &$lines[$lineCount++];
+
+ if (0 >= $maxLineLength) {
+ $maxLineLength = 75;
+ }
+
+ $charStream = new CharacterStream($string, $charset);
+ $thisLineLength = $maxLineLength - $firstLineOffset;
+
+ while (null !== $char = $charStream->read(4)) {
+ $encodedChar = rawurlencode($char);
+ if (0 !== \strlen($currentLine) && \strlen($currentLine.$encodedChar) > $thisLineLength) {
+ $lines[] = '';
+ $currentLine = &$lines[$lineCount++];
+ $thisLineLength = $maxLineLength;
+ }
+ $currentLine .= $encodedChar;
+ }
+
+ return implode("\r\n", $lines);
+ }
+}
generated by cgit v1.3 (git 2.53.0) at 2026-07-14 15:17:52 +0000