diff options
author | Antonio Gallo <tonicucoz@gmail.com> | 2010-10-17 13:29:57 +0000 |
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committer | Antonio Gallo <tonicucoz@gmail.com> | 2010-10-17 13:29:57 +0000 |
commit | 232aa1924c8c0f10d87b210b46c9f061af5c844c (patch) | |
tree | 2351f2aaff7ad244f60358954e4711692fb8aadc /h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php | |
parent | a17e3e0495bee3705d3c1e5ead2db1a8359e64e9 (diff) |
added files
Diffstat (limited to 'h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php')
-rw-r--r-- | h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php b/h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php new file mode 100644 index 0000000..6914f6c --- /dev/null +++ b/h-source/External/swiftmailer/lib/classes/Swift/Encoder/QpEncoder.php @@ -0,0 +1,263 @@ +<?php + +/* + * This file is part of SwiftMailer. + * (c) 2004-2009 Chris Corbyn + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +//@require 'Swift/Encoder.php'; +//@require 'Swift/CharacterStream.php'; + +/** + * Handles Quoted Printable (QP) Encoding in Swift Mailer. + * Possibly the most accurate RFC 2045 QP implementation found in PHP. + * @package Swift + * @subpackage Encoder + * @author Chris Corbyn + */ +class Swift_Encoder_QpEncoder implements Swift_Encoder +{ + + /** + * The CharacterStream used for reading characters (as opposed to bytes). + * @var Swift_CharacterStream + * @access protected + */ + protected $_charStream; + + /** + * A filter used if input should be canonicalized. + * @var Swift_StreamFilter + * @access protected + */ + protected $_filter; + + /** + * Pre-computed QP for HUGE optmization. + * @var string[] + * @access protected + */ + protected static $_qpMap = array( + 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' + ); + + /** + * A map of non-encoded ascii characters. + * @var string[] + * @access protected + */ + protected static $_safeMap = array(); + + /** + * Creates a new QpEncoder for the given CharacterStream. + * @param Swift_CharacterStream $charStream to use for reading characters + * @param Swift_StreamFilter $filter if input should be canonicalized + */ + public function __construct(Swift_CharacterStream $charStream, + Swift_StreamFilter $filter = null) + { + $this->_charStream = $charStream; + if (empty(self::$_safeMap)) + { + foreach (array_merge( + array(0x09, 0x20), range(0x21, 0x3C), range(0x3E, 0x7E)) as $byte) + { + self::$_safeMap[$byte] = chr($byte); + } + } + $this->_filter = $filter; + } + + /** + * 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. + * @param string $string to encode + * @param int $firstLineOffset, optional + * @param int $maxLineLength, optional, 0 indicates the default of 76 chars + * @return string + */ + public function encodeString($string, $firstLineOffset = 0, + $maxLineLength = 0) + { + if ($maxLineLength > 76 || $maxLineLength <= 0) + { + $maxLineLength = 76; + } + + $thisLineLength = $maxLineLength - $firstLineOffset; + + $lines = array(); + $lNo = 0; + $lines[$lNo] = ''; + $currentLine =& $lines[$lNo++]; + $size=$lineLen=0; + + $this->_charStream->flushContents(); + $this->_charStream->importString($string); + + //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 (false !== $bytes = $this->_nextSequence()) + { + //If we're filtering the input + if (isset($this->_filter)) + { + //If we can't filter because we need more bytes + while ($this->_filter->shouldBuffer($bytes)) + { + //Then collect bytes into the buffer + if (false === $moreBytes = $this->_nextSequence(1)) + { + break; + } + + foreach ($moreBytes as $b) + { + $bytes[] = $b; + } + } + //And filter them + $bytes = $this->_filter->filter($bytes); + } + + $enc = $this->_encodeByteSequence($bytes, $size); + if ($currentLine && $lineLen+$size >= $thisLineLength) + { + $lines[$lNo] = ''; + $currentLine =& $lines[$lNo++]; + $thisLineLength = $maxLineLength; + $lineLen=0; + } + $lineLen+=$size; + $currentLine .= $enc; + } + + return $this->_standardize(implode("=\r\n", $lines)); + } + + /** + * Updates the charset used. + * @param string $charset + */ + public function charsetChanged($charset) + { + $this->_charStream->setCharacterSet($charset); + } + + // -- Protected methods + + /** + * Encode the given byte array into a verbatim QP form. + * @param int[] $bytes + * @return string + * @access protected + */ + protected function _encodeByteSequence(array $bytes, &$size) + { + $ret = ''; + $size=0; + foreach ($bytes as $b) + { + if (isset(self::$_safeMap[$b])) + { + $ret .= self::$_safeMap[$b]; + ++$size; + } + else + { + $ret .= self::$_qpMap[$b]; + $size+=3; + } + } + return $ret; + } + + /** + * Get the next sequence of bytes to read from the char stream. + * @param int $size number of bytes to read + * @return int[] + * @access protected + */ + protected function _nextSequence($size = 4) + { + return $this->_charStream->readBytes($size); + } + + /** + * Make sure CRLF is correct and HT/SPACE are in valid places. + * @param string $string + * @return string + * @access protected + */ + protected function _standardize($string) + { + $string = str_replace(array("\t=0D=0A", " =0D=0A", "=0D=0A"), + array("=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; + } + +} |