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<?php |
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/* |
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* This file is part of SwiftMailer. |
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* (c) 2004-2009 Chris Corbyn |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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/** |
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* Handles Quoted Printable (QP) Encoding in Swift Mailer. |
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* |
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* Possibly the most accurate RFC 2045 QP implementation found in PHP. |
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* |
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* @author Chris Corbyn |
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*/ |
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class Swift_Encoder_QpEncoder implements Swift_Encoder |
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{ |
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/** |
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* The CharacterStream used for reading characters (as opposed to bytes). |
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* |
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* @var Swift_CharacterStream |
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*/ |
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protected $_charStream; |
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/** |
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* A filter used if input should be canonicalized. |
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* |
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* @var Swift_StreamFilter |
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*/ |
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protected $_filter; |
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/** |
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* Pre-computed QP for HUGE optimization. |
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* |
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* @var string[] |
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*/ |
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protected static $_qpMap = array( |
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0 => '=00', 1 => '=01', 2 => '=02', 3 => '=03', 4 => '=04', |
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5 => '=05', 6 => '=06', 7 => '=07', 8 => '=08', 9 => '=09', |
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10 => '=0A', 11 => '=0B', 12 => '=0C', 13 => '=0D', 14 => '=0E', |
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15 => '=0F', 16 => '=10', 17 => '=11', 18 => '=12', 19 => '=13', |
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20 => '=14', 21 => '=15', 22 => '=16', 23 => '=17', 24 => '=18', |
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25 => '=19', 26 => '=1A', 27 => '=1B', 28 => '=1C', 29 => '=1D', |
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30 => '=1E', 31 => '=1F', 32 => '=20', 33 => '=21', 34 => '=22', |
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35 => '=23', 36 => '=24', 37 => '=25', 38 => '=26', 39 => '=27', |
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40 => '=28', 41 => '=29', 42 => '=2A', 43 => '=2B', 44 => '=2C', |
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45 => '=2D', 46 => '=2E', 47 => '=2F', 48 => '=30', 49 => '=31', |
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50 => '=32', 51 => '=33', 52 => '=34', 53 => '=35', 54 => '=36', |
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55 => '=37', 56 => '=38', 57 => '=39', 58 => '=3A', 59 => '=3B', |
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60 => '=3C', 61 => '=3D', 62 => '=3E', 63 => '=3F', 64 => '=40', |
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65 => '=41', 66 => '=42', 67 => '=43', 68 => '=44', 69 => '=45', |
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54
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70 => '=46', 71 => '=47', 72 => '=48', 73 => '=49', 74 => '=4A', |
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75 => '=4B', 76 => '=4C', 77 => '=4D', 78 => '=4E', 79 => '=4F', |
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80 => '=50', 81 => '=51', 82 => '=52', 83 => '=53', 84 => '=54', |
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85 => '=55', 86 => '=56', 87 => '=57', 88 => '=58', 89 => '=59', |
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90 => '=5A', 91 => '=5B', 92 => '=5C', 93 => '=5D', 94 => '=5E', |
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95 => '=5F', 96 => '=60', 97 => '=61', 98 => '=62', 99 => '=63', |
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100 => '=64', 101 => '=65', 102 => '=66', 103 => '=67', 104 => '=68', |
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105 => '=69', 106 => '=6A', 107 => '=6B', 108 => '=6C', 109 => '=6D', |
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110 => '=6E', 111 => '=6F', 112 => '=70', 113 => '=71', 114 => '=72', |
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115 => '=73', 116 => '=74', 117 => '=75', 118 => '=76', 119 => '=77', |
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120 => '=78', 121 => '=79', 122 => '=7A', 123 => '=7B', 124 => '=7C', |
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125 => '=7D', 126 => '=7E', 127 => '=7F', 128 => '=80', 129 => '=81', |
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130 => '=82', 131 => '=83', 132 => '=84', 133 => '=85', 134 => '=86', |
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135 => '=87', 136 => '=88', 137 => '=89', 138 => '=8A', 139 => '=8B', |
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140 => '=8C', 141 => '=8D', 142 => '=8E', 143 => '=8F', 144 => '=90', |
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145 => '=91', 146 => '=92', 147 => '=93', 148 => '=94', 149 => '=95', |
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150 => '=96', 151 => '=97', 152 => '=98', 153 => '=99', 154 => '=9A', |
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155 => '=9B', 156 => '=9C', 157 => '=9D', 158 => '=9E', 159 => '=9F', |
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160 => '=A0', 161 => '=A1', 162 => '=A2', 163 => '=A3', 164 => '=A4', |
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165 => '=A5', 166 => '=A6', 167 => '=A7', 168 => '=A8', 169 => '=A9', |
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170 => '=AA', 171 => '=AB', 172 => '=AC', 173 => '=AD', 174 => '=AE', |
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175 => '=AF', 176 => '=B0', 177 => '=B1', 178 => '=B2', 179 => '=B3', |
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180 => '=B4', 181 => '=B5', 182 => '=B6', 183 => '=B7', 184 => '=B8', |
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185 => '=B9', 186 => '=BA', 187 => '=BB', 188 => '=BC', 189 => '=BD', |
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190 => '=BE', 191 => '=BF', 192 => '=C0', 193 => '=C1', 194 => '=C2', |
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195 => '=C3', 196 => '=C4', 197 => '=C5', 198 => '=C6', 199 => '=C7', |
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200 => '=C8', 201 => '=C9', 202 => '=CA', 203 => '=CB', 204 => '=CC', |
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205 => '=CD', 206 => '=CE', 207 => '=CF', 208 => '=D0', 209 => '=D1', |
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210 => '=D2', 211 => '=D3', 212 => '=D4', 213 => '=D5', 214 => '=D6', |
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215 => '=D7', 216 => '=D8', 217 => '=D9', 218 => '=DA', 219 => '=DB', |
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220 => '=DC', 221 => '=DD', 222 => '=DE', 223 => '=DF', 224 => '=E0', |
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225 => '=E1', 226 => '=E2', 227 => '=E3', 228 => '=E4', 229 => '=E5', |
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230 => '=E6', 231 => '=E7', 232 => '=E8', 233 => '=E9', 234 => '=EA', |
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235 => '=EB', 236 => '=EC', 237 => '=ED', 238 => '=EE', 239 => '=EF', |
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240 => '=F0', 241 => '=F1', 242 => '=F2', 243 => '=F3', 244 => '=F4', |
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245 => '=F5', 246 => '=F6', 247 => '=F7', 248 => '=F8', 249 => '=F9', |
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250 => '=FA', 251 => '=FB', 252 => '=FC', 253 => '=FD', 254 => '=FE', |
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255 => '=FF', |
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); |
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protected static $_safeMapShare = array(); |
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/** |
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* A map of non-encoded ascii characters. |
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* |
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* @var string[] |
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*/ |
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protected $_safeMap = array(); |
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/** |
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* Creates a new QpEncoder for the given CharacterStream. |
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* |
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* @param Swift_CharacterStream $charStream to use for reading characters |
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* @param Swift_StreamFilter $filter if input should be canonicalized |
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*/ |
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public function __construct(Swift_CharacterStream $charStream, Swift_StreamFilter $filter = null) |
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{ |
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$this->_charStream = $charStream; |
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189 |
View Code Duplication |
if (!isset(self::$_safeMapShare[$this->getSafeMapShareId()])) { |
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3 |
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$this->initSafeMap(); |
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3 |
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self::$_safeMapShare[$this->getSafeMapShareId()] = $this->_safeMap; |
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} else { |
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189 |
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$this->_safeMap = self::$_safeMapShare[$this->getSafeMapShareId()]; |
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} |
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189 |
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$this->_filter = $filter; |
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} |
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public function __sleep() |
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{ |
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return array('_charStream', '_filter'); |
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} |
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public function __wakeup() |
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{ |
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View Code Duplication |
if (!isset(self::$_safeMapShare[$this->getSafeMapShareId()])) { |
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$this->initSafeMap(); |
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self::$_safeMapShare[$this->getSafeMapShareId()] = $this->_safeMap; |
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} else { |
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$this->_safeMap = self::$_safeMapShare[$this->getSafeMapShareId()]; |
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} |
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} |
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168 |
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protected function getSafeMapShareId() |
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{ |
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return get_class($this); |
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} |
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3 |
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protected function initSafeMap() |
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{ |
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foreach ( |
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3 |
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array_merge( |
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3 |
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array(0x09, 0x20), |
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3 |
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range(0x21, 0x3C), |
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3 |
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range(0x3E, 0x7E) |
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) as $byte |
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) { |
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3 |
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$this->_safeMap[$byte] = chr($byte); |
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} |
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3 |
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} |
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/** |
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* Takes an unencoded string and produces a QP encoded string from it. |
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* |
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* QP encoded strings have a maximum line length of 76 characters. |
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* If the first line needs to be shorter, indicate the difference with |
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* $firstLineOffset. |
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* |
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* @param string $string to encode |
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* @param int $firstLineOffset , optional |
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* @param int $maxLineLength , optional 0 indicates the default of 76 chars |
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* |
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* @return string |
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*/ |
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public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0) |
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{ |
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72 |
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if ($maxLineLength > 76 || $maxLineLength <= 0) { |
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$maxLineLength = 76; |
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} |
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175
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$thisLineLength = $maxLineLength - $firstLineOffset; |
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177
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$lines = array(); |
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72 |
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$lNo = 0; |
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$lines[$lNo] = ''; |
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$currentLine = &$lines[$lNo++]; |
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$size = $lineLen = 0; |
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183
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$this->_charStream->flushContents(); |
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$this->_charStream->importString($string); |
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186
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72 |
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while (false !== $bytes = $this->_nextSequence()) { |
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// if we're filtering the input |
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View Code Duplication |
if (isset($this->_filter)) { |
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189
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// if we can't filter because we need more bytes |
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while ($this->_filter->shouldBuffer($bytes)) { |
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// then collect bytes into the buffer |
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2 |
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if (false === $moreBytes = $this->_nextSequence(1)) { |
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break; |
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} |
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foreach ($moreBytes as $b) { |
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$bytes[] = $b; |
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} |
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} |
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// and filter them |
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54 |
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$bytes = $this->_filter->filter($bytes); |
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} |
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204
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$enc = $this->_encodeByteSequence($bytes, $size); |
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206
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$i = strpos($enc, '=0D=0A'); |
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$newLineLength = $lineLen + ($i === false ? $size : $i); |
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72 |
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if ($currentLine && $newLineLength >= $thisLineLength) { |
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$lines[$lNo] = ''; |
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7 |
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$currentLine = &$lines[$lNo++]; |
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$thisLineLength = $maxLineLength; |
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7 |
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$lineLen = 0; |
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} |
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215
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216
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72 |
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$currentLine .= $enc; |
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218
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72 |
View Code Duplication |
if ($i === false) { |
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219
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58 |
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$lineLen += $size; |
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220
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} else { |
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221
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// 6 is the length of '=0D=0A'. |
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18 |
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$lineLen = $size - strrpos($enc, '=0D=0A') - 6; |
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} |
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224
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} |
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225
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226
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72 |
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return $this->_standardize(implode("=\r\n", $lines)); |
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227
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} |
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228
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229
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/** |
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230
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* Updates the charset used. |
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231
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* |
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232
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* @param string $charset |
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233
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*/ |
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234
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151 |
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public function charsetChanged($charset) |
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235
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{ |
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236
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151 |
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$this->_charStream->setCharacterSet($charset); |
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237
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151 |
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} |
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238
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239
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/** |
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240
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* Encode the given byte array into a verbatim QP form. |
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241
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* |
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242
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* @param integer[] $bytes |
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243
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* @param int $size |
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244
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* |
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245
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* @return string |
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246
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*/ |
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247
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85 |
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protected function _encodeByteSequence(array $bytes, &$size) |
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248
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{ |
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249
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85 |
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$ret = ''; |
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250
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85 |
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$size = 0; |
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251
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85 |
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foreach ($bytes as $b) { |
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252
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253
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85 |
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$tmpRet = ''; |
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254
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85 |
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if (isset($this->_safeMap[$b])) { |
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255
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76 |
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$tmpRet .= $this->_safeMap[$b]; |
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256
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76 |
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++$size; |
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257
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} else { |
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258
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42 |
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$tmpRet .= self::$_qpMap[$b]; |
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259
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42 |
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$size += 3; |
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260
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} |
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261
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262
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85 |
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if ($tmpRet !== '=00') { |
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263
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85 |
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$ret .= $tmpRet; |
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264
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} |
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265
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} |
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266
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267
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85 |
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return $ret; |
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268
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} |
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269
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270
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/** |
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271
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* Get the next sequence of bytes to read from the char stream. |
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272
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* |
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273
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* Fetching more than 4 chars at one is slower, as is fetching fewer bytes |
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274
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* Conveniently 4 chars is the UTF-8 safe number since UTF-8 has up to 6 |
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275
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* bytes per char and (6 * 4 * 3 = 72 chars per line) * =NN is 3 bytes. |
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276
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* |
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277
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* @param int $size number of bytes to read |
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278
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* |
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279
|
|
|
* @return int[] |
|
280
|
|
|
*/ |
|
281
|
85 |
|
protected function _nextSequence($size = 72) |
|
282
|
|
|
{ |
|
283
|
85 |
|
return $this->_charStream->readBytes($size); |
|
284
|
|
|
} |
|
285
|
|
|
|
|
286
|
|
|
/** |
|
287
|
|
|
* Make sure CRLF is correct and HT/SPACE are in valid places. |
|
288
|
|
|
* |
|
289
|
|
|
* @param string $string |
|
290
|
|
|
* |
|
291
|
|
|
* @return string |
|
292
|
|
|
*/ |
|
293
|
84 |
|
protected function _standardize($string) |
|
294
|
|
|
{ |
|
295
|
84 |
|
$string = str_replace( |
|
296
|
84 |
|
array("\t=0D=0A", ' =0D=0A', '=0D=0A'), |
|
297
|
84 |
|
array("=09\r\n", "=20\r\n", "\r\n"), |
|
298
|
|
|
$string |
|
299
|
|
|
); |
|
300
|
|
|
|
|
301
|
84 |
|
switch ($end = ord(substr($string, -1))) { |
|
302
|
84 |
|
case 0x09: |
|
303
|
84 |
|
case 0x20: |
|
304
|
3 |
|
$string = substr_replace($string, self::$_qpMap[$end], -1); |
|
305
|
|
|
} |
|
306
|
|
|
|
|
307
|
84 |
|
return $string; |
|
308
|
|
|
} |
|
309
|
|
|
|
|
310
|
|
|
/** |
|
311
|
|
|
* Make a deep copy of object. |
|
312
|
|
|
*/ |
|
313
|
5 |
|
public function __clone() |
|
314
|
|
|
{ |
|
315
|
5 |
|
$this->_charStream = clone $this->_charStream; |
|
316
|
5 |
|
} |
|
317
|
|
|
} |
|
318
|
|
|
|
voku /
swiftmailer
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.