| commit | author | age | ||
| 4e17e6 | 1 | <?php |
| T | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | rcube_shared.inc | | |
| 6 | | | | |
| 7 | | This file is part of the RoundCube PHP suite | | |
| f11541 | 8 | | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland | |
| 30233b | 9 | | Licensed under the GNU GPL | |
| 4e17e6 | 10 | | | |
| T | 11 | | CONTENTS: | |
| 12 | | Shared functions and classes used in PHP projects | | |
| 13 | | | | |
| 14 | +-----------------------------------------------------------------------+ | |
| 15 | | Author: Thomas Bruederli <roundcube@gmail.com> | | |
| 16 | +-----------------------------------------------------------------------+ | |
| 17 | ||
| 18 | $Id$ | |
| 19 | ||
| 20 | */ | |
| 21 | ||
| 22 | ||
| 6d969b | 23 | /** |
| T | 24 | * RoundCube shared functions |
| 25 | * | |
| 26 | * @package Core | |
| 27 | */ | |
| 4e17e6 | 28 | |
| a0109c | 29 | |
| 6d969b | 30 | /** |
| T | 31 | * Send HTTP headers to prevent caching this page |
| 32 | */ | |
| 4e17e6 | 33 | function send_nocacheing_headers() |
| 6d969b | 34 | { |
| 4e17e6 | 35 | if (headers_sent()) |
| T | 36 | return; |
| 37 | ||
| 38 | header("Expires: ".gmdate("D, d M Y H:i:s")." GMT"); | |
| 39 | header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT"); | |
| 456c7e | 40 | header("Cache-Control: private, must-revalidate, post-check=0, pre-check=0"); |
| 4e17e6 | 41 | header("Pragma: no-cache"); |
| 0dbac3 | 42 | |
| T | 43 | // We need to set the following headers to make downloads work using IE in HTTPS mode. |
| 44 | if (isset($_SERVER['HTTPS'])) { | |
| 45 | header('Pragma: '); | |
| 46 | header('Cache-Control: '); | |
| 47 | } | |
| 6d969b | 48 | } |
| 4e17e6 | 49 | |
| T | 50 | |
| 6d969b | 51 | /** |
| T | 52 | * Send header with expire date 30 days in future |
| 53 | * | |
| 54 | * @param int Expiration time in seconds | |
| 55 | */ | |
| ff52be | 56 | function send_future_expire_header($offset=2600000) |
| 6d969b | 57 | { |
| 1a98a6 | 58 | if (headers_sent()) |
| T | 59 | return; |
| 60 | ||
| ff52be | 61 | header("Expires: ".gmdate("D, d M Y H:i:s", mktime()+$offset)." GMT"); |
| T | 62 | header("Cache-Control: max-age=$offset"); |
| 1a98a6 | 63 | header("Pragma: "); |
| 6d969b | 64 | } |
| 4e17e6 | 65 | |
| T | 66 | |
| 6d969b | 67 | /** |
| T | 68 | * Check request for If-Modified-Since and send an according response. |
| 69 | * This will terminate the current script if headers match the given values | |
| 70 | * | |
| 71 | * @param int Modified date as unix timestamp | |
| 72 | * @param string Etag value for caching | |
| 73 | */ | |
| 3f5cef | 74 | function send_modified_header($mdate, $etag=null, $skip_check=false) |
| ff52be | 75 | { |
| T | 76 | if (headers_sent()) |
| 77 | return; | |
| 78 | ||
| 79 | $iscached = false; | |
| 80 | $etag = $etag ? "\"$etag\"" : null; | |
| 3f5cef | 81 | |
| A | 82 | if (!$skip_check) |
| 83 | { | |
| 84 | if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $mdate) | |
| 85 | $iscached = true; | |
| 86 | ||
| 87 | if ($etag) | |
| 88 | $iscached = ($_SERVER['HTTP_IF_NONE_MATCH'] == $etag); | |
| 89 | } | |
| ff52be | 90 | |
| T | 91 | if ($iscached) |
| 92 | header("HTTP/1.x 304 Not Modified"); | |
| 93 | else | |
| 94 | header("Last-Modified: ".gmdate("D, d M Y H:i:s", $mdate)." GMT"); | |
| 95 | ||
| 96 | header("Cache-Control: max-age=0"); | |
| 97 | header("Expires: "); | |
| 98 | header("Pragma: "); | |
| 99 | ||
| 100 | if ($etag) | |
| 101 | header("Etag: $etag"); | |
| 102 | ||
| 103 | if ($iscached) | |
| 1b4d73 | 104 | { |
| T | 105 | ob_end_clean(); |
| ff52be | 106 | exit; |
| 1b4d73 | 107 | } |
| ff52be | 108 | } |
| T | 109 | |
| 110 | ||
| f11541 | 111 | /** |
| c02bb9 | 112 | * Returns whether an $str is a reserved word for any of the version of Javascript or ECMAScript |
| A | 113 | * @param str String to check |
| 114 | * @return boolean True if $str is a reserver word, False if not | |
| 115 | */ | |
| 116 | function is_js_reserved_word($str) | |
| 117 | { | |
| 118 | return in_array($str, array( | |
| 119 | // ECMASript ver 4 reserved words | |
| 120 | 'as','break','case','catch','class','const','continue', | |
| 121 | 'default','delete','do','else','export','extends','false','finally','for','function', | |
| 122 | 'if','import','in','instanceof','is','namespace','new','null','package','private', | |
| 123 | 'public','return','super','switch','this','throw','true','try','typeof','use','var', | |
| 124 | 'void','while','with', | |
| 125 | // ECMAScript ver 4 future reserved words | |
| 126 | 'abstract','debugger','enum','goto','implements','interface','native','protected', | |
| 127 | 'synchronized','throws','transient','volatile', | |
| 128 | // special meaning in some contexts | |
| 129 | 'get','set', | |
| 130 | // were reserved in ECMAScript ver 3 | |
| 131 | 'boolean','byte','char','double','final','float','int','long','short','static' | |
| 132 | )); | |
| 133 | } | |
| 134 | ||
| 135 | ||
| 136 | /** | |
| 6d969b | 137 | * Convert a variable into a javascript object notation |
| T | 138 | * |
| 139 | * @param mixed Input value | |
| 140 | * @return string Serialized JSON string | |
| f11541 | 141 | */ |
| T | 142 | function json_serialize($var) |
| 6d969b | 143 | { |
| T | 144 | if (is_object($var)) |
| 145 | $var = get_object_vars($var); | |
| 146 | ||
| 147 | if (is_array($var)) | |
| 4e17e6 | 148 | { |
| 6d969b | 149 | // empty array |
| T | 150 | if (!sizeof($var)) |
| 151 | return '[]'; | |
| f11541 | 152 | else |
| 6d969b | 153 | { |
| T | 154 | $keys_arr = array_keys($var); |
| 155 | $is_assoc = $have_numeric = 0; | |
| 156 | ||
| 157 | for ($i=0; $i<sizeof($keys_arr); ++$i) | |
| 158 | { | |
| 159 | if (is_numeric($keys_arr[$i])) | |
| 160 | $have_numeric = 1; | |
| 161 | if (!is_numeric($keys_arr[$i]) || $keys_arr[$i] != $i) | |
| 162 | $is_assoc = 1; | |
| 163 | if ($is_assoc && $have_numeric) | |
| 164 | break; | |
| 165 | } | |
| 166 | ||
| 167 | $brackets = $is_assoc ? '{}' : '[]'; | |
| 168 | $pairs = array(); | |
| 169 | ||
| 170 | foreach ($var as $key => $value) | |
| 171 | { | |
| 172 | // enclose key with quotes if it is not variable-name conform | |
| 23a2ee | 173 | if (!preg_match('/^[_a-zA-Z]{1}[_a-zA-Z0-9]*$/', $key) || is_js_reserved_word($key)) |
| 6d969b | 174 | $key = "'$key'"; |
| T | 175 | |
| 176 | $pairs[] = sprintf("%s%s", $is_assoc ? "$key:" : '', json_serialize($value)); | |
| 177 | } | |
| 178 | ||
| 179 | return $brackets{0} . implode(',', $pairs) . $brackets{1}; | |
| 180 | } | |
| f11541 | 181 | } |
| 8498dc | 182 | else if (!is_string($var) && strval(intval($var)) === strval($var)) |
| 6d969b | 183 | return $var; |
| T | 184 | else if (is_bool($var)) |
| 185 | return $var ? '1' : '0'; | |
| 186 | else | |
| 187 | return "'".JQ($var)."'"; | |
| 188 | } | |
| f11541 | 189 | |
| c02bb9 | 190 | |
| f11541 | 191 | /** |
| 6d969b | 192 | * Function to convert an array to a javascript array |
| T | 193 | * Actually an alias function for json_serialize() |
| f11541 | 194 | * @deprecated |
| T | 195 | */ |
| 196 | function array2js($arr, $type='') | |
| 6d969b | 197 | { |
| f11541 | 198 | return json_serialize($arr); |
| 6d969b | 199 | } |
| 4e17e6 | 200 | |
| T | 201 | |
| f11541 | 202 | /** |
| T | 203 | * Similar function as in_array() but case-insensitive |
| 6d969b | 204 | * |
| T | 205 | * @param mixed Needle value |
| 206 | * @param array Array to search in | |
| 207 | * @return boolean True if found, False if not | |
| f11541 | 208 | */ |
| 4e17e6 | 209 | function in_array_nocase($needle, $haystack) |
| 6d969b | 210 | { |
| ee258c | 211 | $needle = mb_strtolower($needle); |
| 4e17e6 | 212 | foreach ($haystack as $value) |
| ee258c | 213 | if ($needle===mb_strtolower($value)) |
| 6d969b | 214 | return true; |
| T | 215 | |
| 216 | return false; | |
| 217 | } | |
| 4e17e6 | 218 | |
| T | 219 | |
| f11541 | 220 | /** |
| T | 221 | * Find out if the string content means TRUE or FALSE |
| 6d969b | 222 | * |
| T | 223 | * @param string Input value |
| 224 | * @return boolean Imagine what! | |
| f11541 | 225 | */ |
| 4e17e6 | 226 | function get_boolean($str) |
| 6d969b | 227 | { |
| 4e17e6 | 228 | $str = strtolower($str); |
| ee258c | 229 | if (in_array($str, array('false', '0', 'no', 'nein', ''), TRUE)) |
| 4e17e6 | 230 | return FALSE; |
| T | 231 | else |
| 232 | return TRUE; | |
| 6d969b | 233 | } |
| 4e17e6 | 234 | |
| T | 235 | |
| 6d969b | 236 | /** |
| T | 237 | * Parse a human readable string for a number of bytes |
| 238 | * | |
| 239 | * @param string Input string | |
| 47f072 | 240 | * @return float Number of bytes |
| 6d969b | 241 | */ |
| 86df15 | 242 | function parse_bytes($str) |
| 6d969b | 243 | { |
| 86df15 | 244 | if (is_numeric($str)) |
| 47f072 | 245 | return floatval($str); |
| 86df15 | 246 | |
| T | 247 | if (preg_match('/([0-9]+)([a-z])/i', $str, $regs)) |
| 6d969b | 248 | { |
| T | 249 | $bytes = floatval($regs[1]); |
| 250 | switch (strtolower($regs[2])) | |
| 86df15 | 251 | { |
| 6d969b | 252 | case 'g': |
| T | 253 | $bytes *= 1073741824; |
| 254 | break; | |
| 255 | case 'm': | |
| 256 | $bytes *= 1048576; | |
| 257 | break; | |
| 258 | case 'k': | |
| 259 | $bytes *= 1024; | |
| 260 | break; | |
| 86df15 | 261 | } |
| 6d969b | 262 | } |
| 86df15 | 263 | |
| 47f072 | 264 | return floatval($bytes); |
| 6d969b | 265 | } |
| 86df15 | 266 | |
| 6d969b | 267 | /** |
| T | 268 | * Create a human readable string for a number of bytes |
| 269 | * | |
| 270 | * @param int Number of bytes | |
| 271 | * @return string Byte string | |
| 272 | */ | |
| 3ea0e3 | 273 | function show_bytes($bytes) |
| 6d969b | 274 | { |
| 3ea0e3 | 275 | if ($bytes > 1073741824) |
| 6d969b | 276 | { |
| 3ea0e3 | 277 | $gb = $bytes/1073741824; |
| f613a1 | 278 | $str = sprintf($gb>=10 ? "%d " : "%.1f ", $gb) . rcube_label('GB'); |
| 6d969b | 279 | } |
| 3ea0e3 | 280 | else if ($bytes > 1048576) |
| 6d969b | 281 | { |
| 3ea0e3 | 282 | $mb = $bytes/1048576; |
| f613a1 | 283 | $str = sprintf($mb>=10 ? "%d " : "%.1f ", $mb) . rcube_label('MB'); |
| 6d969b | 284 | } |
| 3ea0e3 | 285 | else if ($bytes > 1024) |
| f613a1 | 286 | $str = sprintf("%d ", round($bytes/1024)) . rcube_label('KB'); |
| 4e17e6 | 287 | else |
| f613a1 | 288 | $str = sprintf('%d ', $bytes) . rcube_label('B'); |
| 3ea0e3 | 289 | |
| T | 290 | return $str; |
| 6d969b | 291 | } |
| 4e17e6 | 292 | |
| T | 293 | |
| 6d969b | 294 | /** |
| T | 295 | * Convert paths like ../xxx to an absolute path using a base url |
| 296 | * | |
| 297 | * @param string Relative path | |
| 298 | * @param string Base URL | |
| 299 | * @return string Absolute URL | |
| 300 | */ | |
| 4e17e6 | 301 | function make_absolute_url($path, $base_url) |
| 6d969b | 302 | { |
| T | 303 | $host_url = $base_url; |
| 304 | $abs_path = $path; | |
| 97bd2c | 305 | |
| T | 306 | // check if path is an absolute URL |
| 307 | if (preg_match('/^[fhtps]+:\/\//', $path)) | |
| 308 | return $path; | |
| 4e17e6 | 309 | |
| 6d969b | 310 | // cut base_url to the last directory |
| aa055c | 311 | if (strrpos($base_url, '/')>7) |
| 6d969b | 312 | { |
| T | 313 | $host_url = substr($base_url, 0, strpos($base_url, '/')); |
| 314 | $base_url = substr($base_url, 0, strrpos($base_url, '/')); | |
| 315 | } | |
| 316 | ||
| 317 | // $path is absolute | |
| 318 | if ($path{0}=='/') | |
| 319 | $abs_path = $host_url.$path; | |
| 320 | else | |
| 321 | { | |
| 322 | // strip './' because its the same as '' | |
| 323 | $path = preg_replace('/^\.\//', '', $path); | |
| 324 | ||
| 325 | if (preg_match_all('/\.\.\//', $path, $matches, PREG_SET_ORDER)) | |
| 326 | foreach ($matches as $a_match) | |
| 4e17e6 | 327 | { |
| 6d969b | 328 | if (strrpos($base_url, '/')) |
| T | 329 | $base_url = substr($base_url, 0, strrpos($base_url, '/')); |
| 330 | ||
| 331 | $path = substr($path, 3); | |
| 4e17e6 | 332 | } |
| T | 333 | |
| 6d969b | 334 | $abs_path = $base_url.'/'.$path; |
| T | 335 | } |
| 336 | ||
| 337 | return $abs_path; | |
| 338 | } | |
| 4e17e6 | 339 | |
| 7145e0 | 340 | /** |
| A | 341 | * Wrapper function for wordwrap |
| 342 | */ | |
| 343 | function rc_wordwrap($string, $width=75, $break="\n", $cut=false) | |
| 344 | { | |
| 345 | $para = explode($break, $string); | |
| 346 | $string = ''; | |
| 347 | while (count($para)) { | |
| 348 | $list = explode(' ', array_shift($para)); | |
| 349 | $len = 0; | |
| 350 | while (count($list)) { | |
| 351 | $line = array_shift($list); | |
| 352 | $l = mb_strlen($line); | |
| 353 | $newlen = $len + $l + ($len ? 1 : 0); | |
| 354 | ||
| 355 | if ($newlen <= $width) { | |
| 356 | $string .= ($len ? ' ' : '').$line; | |
| 78ebe7 | 357 | $len += (1 + $l); |
| 7145e0 | 358 | } else { |
| A | 359 | if ($l > $width) { |
| 360 | if ($cut) { | |
| 361 | $start = 0; | |
| 362 | while ($l) { | |
| 363 | $str = mb_substr($line, $start, $width); | |
| 364 | $strlen = mb_strlen($str); | |
| 365 | $string .= ($len ? $break : '').$str; | |
| 366 | $start += $strlen; | |
| 367 | $l -= $strlen; | |
| 368 | $len = $strlen; | |
| 369 | } | |
| 370 | } else { | |
| 371 | $string .= ($len ? $break : '').$line; | |
| 372 | if (count($list)) $string .= $break; | |
| 373 | $len = 0; | |
| 374 | } | |
| 375 | } else { | |
| 376 | $string .= $break.$line; | |
| 377 | $len = $l; | |
| 378 | } | |
| 379 | } | |
| 380 | } | |
| 381 | if (count($para)) $string .= $break; | |
| 382 | } | |
| 383 | return $string; | |
| 384 | } | |
| 86df15 | 385 | |
| 6d969b | 386 | /** |
| 88f66e | 387 | * Read a specific HTTP request header |
| T | 388 | * |
| 0144c5 | 389 | * @access static |
| T | 390 | * @param string $name Header name |
| 391 | * @return mixed Header value or null if not available | |
| 88f66e | 392 | */ |
| T | 393 | function rc_request_header($name) |
| 5a6eff | 394 | { |
| 88f66e | 395 | if (function_exists('getallheaders')) |
| 5a6eff | 396 | { |
| T | 397 | $hdrs = array_change_key_case(getallheaders(), CASE_UPPER); |
| 0144c5 | 398 | $key = strtoupper($name); |
| 5a6eff | 399 | } |
| 88f66e | 400 | else |
| 5a6eff | 401 | { |
| 0144c5 | 402 | $key = 'HTTP_' . strtoupper(strtr($name, '-', '_')); |
| db401b | 403 | $hdrs = array_change_key_case($_SERVER, CASE_UPPER); |
| 5a6eff | 404 | } |
| T | 405 | |
| 406 | return $hdrs[$key]; | |
| 88f66e | 407 | } |
| 1cded8 | 408 | |
| T | 409 | |
| 6d969b | 410 | /** |
| T | 411 | * Make sure the string ends with a slash |
| 412 | */ | |
| bac7d1 | 413 | function slashify($str) |
| 6d969b | 414 | { |
| bac7d1 | 415 | return unslashify($str).'/'; |
| 6d969b | 416 | } |
| bac7d1 | 417 | |
| T | 418 | |
| 6d969b | 419 | /** |
| T | 420 | * Remove slash at the end of the string |
| 421 | */ | |
| bac7d1 | 422 | function unslashify($str) |
| 6d969b | 423 | { |
| bac7d1 | 424 | return preg_replace('/\/$/', '', $str); |
| 6d969b | 425 | } |
| bac7d1 | 426 | |
| T | 427 | |
| 6d969b | 428 | /** |
| T | 429 | * Delete all files within a folder |
| 430 | * | |
| 431 | * @param string Path to directory | |
| 432 | * @return boolean True on success, False if directory was not found | |
| 433 | */ | |
| 1cded8 | 434 | function clear_directory($dir_path) |
| 6d969b | 435 | { |
| 1cded8 | 436 | $dir = @opendir($dir_path); |
| T | 437 | if(!$dir) return FALSE; |
| 438 | ||
| 439 | while ($file = readdir($dir)) | |
| 440 | if (strlen($file)>2) | |
| 441 | unlink("$dir_path/$file"); | |
| 442 | ||
| 443 | closedir($dir); | |
| 444 | return TRUE; | |
| 6d969b | 445 | } |
| 9fee0e | 446 | |
| T | 447 | |
| 6d969b | 448 | /** |
| T | 449 | * Create a unix timestamp with a specified offset from now |
| 450 | * | |
| 451 | * @param string String representation of the offset (e.g. 20min, 5h, 2days) | |
| 452 | * @param int Factor to multiply with the offset | |
| 453 | * @return int Unix timestamp | |
| 454 | */ | |
| cc9570 | 455 | function get_offset_time($offset_str, $factor=1) |
| T | 456 | { |
| 457 | if (preg_match('/^([0-9]+)\s*([smhdw])/i', $offset_str, $regs)) | |
| 6d969b | 458 | { |
| cc9570 | 459 | $amount = (int)$regs[1]; |
| T | 460 | $unit = strtolower($regs[2]); |
| 6d969b | 461 | } |
| cc9570 | 462 | else |
| 6d969b | 463 | { |
| cc9570 | 464 | $amount = (int)$offset_str; |
| T | 465 | $unit = 's'; |
| 6d969b | 466 | } |
| cc9570 | 467 | |
| T | 468 | $ts = mktime(); |
| 469 | switch ($unit) | |
| 6d969b | 470 | { |
| cc9570 | 471 | case 'w': |
| T | 472 | $amount *= 7; |
| 473 | case 'd': | |
| 474 | $amount *= 24; | |
| 475 | case 'h': | |
| 476 | $amount *= 60; | |
| bd4959 | 477 | case 'm': |
| cc9570 | 478 | $amount *= 60; |
| T | 479 | case 's': |
| 480 | $ts += $amount * $factor; | |
| 6d969b | 481 | } |
| cc9570 | 482 | |
| T | 483 | return $ts; |
| 6d969b | 484 | } |
| cc9570 | 485 | |
| ee258c | 486 | |
| A | 487 | /** |
| 488 | * Replace the middle part of a string with ... | |
| 489 | * if it is longer than the allowed length | |
| 490 | * | |
| 491 | * @param string Input string | |
| 492 | * @param int Max. length | |
| 493 | * @param string Replace removed chars with this | |
| 494 | * @return string Abbreviated string | |
| 495 | */ | |
| 496 | function abbreviate_string($str, $maxlength, $place_holder='...') | |
| 497 | { | |
| 498 | $length = mb_strlen($str); | |
| 499 | $first_part_length = floor($maxlength/2) - mb_strlen($place_holder); | |
| 500 | ||
| 501 | if ($length > $maxlength) | |
| 502 | { | |
| 503 | $second_starting_location = $length - $maxlength + $first_part_length + 1; | |
| 504 | $str = mb_substr($str, 0, $first_part_length) . $place_holder . mb_substr($str, $second_starting_location, $length); | |
| 505 | } | |
| 506 | ||
| 507 | return $str; | |
| 508 | } | |
| cc9570 | 509 | |
| a0109c | 510 | /** |
| 734584 | 511 | * A method to guess the mime_type of an attachment. |
| T | 512 | * |
| 513 | * @param string $path Path to the file. | |
| 0ea569 | 514 | * @param string $name File name (with suffix) |
| 734584 | 515 | * @param string $failover Mime type supplied for failover. |
| T | 516 | * |
| 517 | * @return string | |
| 518 | * @author Till Klampaeckel <till@php.net> | |
| 519 | * @see http://de2.php.net/manual/en/ref.fileinfo.php | |
| 520 | * @see http://de2.php.net/mime_content_type | |
| 521 | */ | |
| 0ea569 | 522 | function rc_mime_content_type($path, $name, $failover = 'application/octet-stream') |
| 734584 | 523 | { |
| 6d5dba | 524 | $mime_type = null; |
| T | 525 | $mime_magic = rcmail::get_instance()->config->get('mime_magic'); |
| 0ea569 | 526 | $mime_ext = @include(RCMAIL_CONFIG_DIR . '/mimetypes.php'); |
| T | 527 | $suffix = $name ? substr($name, strrpos($name, '.')+1) : '*'; |
| a0109c | 528 | |
| 0ea569 | 529 | // use file name suffix with hard-coded mime-type map |
| T | 530 | if (is_array($mime_ext)) { |
| 531 | $mime_type = $mime_ext[$suffix]; | |
| 734584 | 532 | } |
| 0ea569 | 533 | // try fileinfo extension if available |
| T | 534 | if (!$mime_type) { |
| 535 | if (!extension_loaded('fileinfo')) { | |
| 536 | @dl('fileinfo.' . PHP_SHLIB_SUFFIX); | |
| 537 | } | |
| 538 | if (function_exists('finfo_open')) { | |
| 539 | if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) { | |
| 540 | $mime_type = finfo_file($finfo, $path); | |
| 541 | finfo_close($finfo); | |
| 542 | } | |
| 734584 | 543 | } |
| T | 544 | } |
| 0ea569 | 545 | // try PHP's mime_content_type |
| 35dc0b | 546 | if (!$mime_type && function_exists('mime_content_type')) { |
| 6d5dba | 547 | $mime_type = mime_content_type($path); |
| T | 548 | } |
| 0ea569 | 549 | // fall back to user-submitted string |
| 734584 | 550 | if (!$mime_type) { |
| 6d5dba | 551 | $mime_type = $failover; |
| 734584 | 552 | } |
| T | 553 | |
| 554 | return $mime_type; | |
| 555 | } | |
| 556 | ||
| b54121 | 557 | |
| A | 558 | /** |
| 559 | * A method to guess encoding of a string. | |
| 560 | * | |
| 561 | * @param string $string String. | |
| 562 | * @param string $failover Default result for failover. | |
| 563 | * | |
| 564 | * @return string | |
| 565 | */ | |
| 566 | function rc_detect_encoding($string, $failover='') | |
| 567 | { | |
| 568 | if (!function_exists('mb_detect_encoding')) { | |
| 569 | return $failover; | |
| 570 | } | |
| 571 | ||
| 572 | // FIXME: the order is important, because sometimes | |
| 573 | // iso string is detected as euc-jp and etc. | |
| 574 | $enc = array( | |
| b58f11 | 575 | 'UTF-8', 'SJIS', 'BIG5', 'GB2312', |
| T | 576 | 'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4', |
| 577 | 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9', | |
| 578 | 'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16', | |
| 579 | 'WINDOWS-1252', 'WINDOWS-1251', 'EUC-JP', 'EUC-TW', 'KOI8-R', | |
| 580 | 'ISO-2022-KR', 'ISO-2022-JP' | |
| b54121 | 581 | ); |
| A | 582 | |
| 583 | $result = mb_detect_encoding($string, join(',', $enc)); | |
| 584 | ||
| 585 | return $result ? $result : $failover; | |
| 586 | } | |
| 587 | ||
| 0ff635 | 588 | |
| A | 589 | /** |
| 590 | * Explode quoted string | |
| 591 | * | |
| 592 | * @param string Delimiter expression string for preg_match() | |
| 593 | * @param string Input string | |
| 594 | */ | |
| 595 | function rcube_explode_quoted_string($delimiter, $string) | |
| 596 | { | |
| 597 | $result = array(); | |
| 598 | $strlen = strlen($string); | |
| 599 | ||
| 600 | for ($q=$p=$i=0; $i < $strlen; $i++) { | |
| 601 | if ($string[$i] == "\"" && $string[$i-1] != "\\") { | |
| 602 | $q = $q ? false : true; | |
| 603 | } | |
| 604 | else if (!$q && preg_match("/$delimiter/", $string[$i])) { | |
| 605 | $result[] = substr($string, $p, $i - $p); | |
| 606 | $p = $i + 1; | |
| 607 | } | |
| 608 | } | |
| 609 | ||
| 610 | $result[] = substr($string, $p); | |
| 611 | return $result; | |
| 612 | } | |
| 613 | ||
| ee258c | 614 | |
| A | 615 | /** |
| 616 | * mbstring replacement functions | |
| 617 | */ | |
| 618 | ||
| 8f6a46 | 619 | if (!extension_loaded('mbstring')) |
| A | 620 | { |
| ee258c | 621 | function mb_strlen($str) |
| A | 622 | { |
| 623 | return strlen($str); | |
| 624 | } | |
| 625 | ||
| 626 | function mb_strtolower($str) | |
| 627 | { | |
| 628 | return strtolower($str); | |
| 629 | } | |
| 630 | ||
| 631 | function mb_strtoupper($str) | |
| 632 | { | |
| 633 | return strtoupper($str); | |
| 634 | } | |
| 635 | ||
| 636 | function mb_substr($str, $start, $len=null) | |
| 637 | { | |
| 638 | return substr($str, $start, $len); | |
| 639 | } | |
| 640 | ||
| 641 | function mb_strpos($haystack, $needle, $offset=0) | |
| 642 | { | |
| 643 | return strpos($haystack, $needle, $offset); | |
| 644 | } | |
| 645 | ||
| 646 | function mb_strrpos($haystack, $needle, $offset=0) | |
| 647 | { | |
| 648 | return strrpos($haystack, $needle, $offset); | |
| 649 | } | |
| 650 | } | |
| 651 | ||
| b54121 | 652 | ?> |
