/htdocs/usr/editors/ckfinder/core/connector/php/php5/Utils/Misc.php
PHP | 369 lines | 234 code | 37 blank | 98 comment | 62 complexity | be3c7842fb75955f8da8bcc64aa6efd8 MD5 | raw file
- <?php
- /*
- * CKFinder
- * ========
- * http://ckfinder.com
- * Copyright (C) 2007-2011, CKSource - Frederico Knabben. All rights reserved.
- *
- * The software, this file and its contents are subject to the CKFinder
- * License. Please read the license.txt file before using, installing, copying,
- * modifying or distribute this file or part of its contents. The contents of
- * this file is part of the Source Code of CKFinder.
- */
- if (!defined('IN_CKFINDER')) exit;
- /**
- * @package CKFinder
- * @subpackage Utils
- * @copyright CKSource - Frederico Knabben
- */
- /**
- * @package CKFinder
- * @subpackage Utils
- * @copyright CKSource - Frederico Knabben
- */
- class CKFinder_Connector_Utils_Misc
- {
- public static function getErrorMessage($number, $arg = "") {
- $langCode = 'en';
- if (!empty($_GET['langCode']) && preg_match("/^[a-z\-]+$/", $_GET['langCode'])) {
- if (file_exists(CKFINDER_CONNECTOR_LANG_PATH . "/" . $_GET['langCode'] . ".php"))
- $langCode = $_GET['langCode'];
- }
- include CKFINDER_CONNECTOR_LANG_PATH . "/" . $langCode . ".php";
- if ($number) {
- if (!empty ($GLOBALS['CKFLang']['Errors'][$number])) {
- $errorMessage = str_replace("%1", $arg, $GLOBALS['CKFLang']['Errors'][$number]);
- } else {
- $errorMessage = str_replace("%1", $number, $GLOBALS['CKFLang']['ErrorUnknown']);
- }
- } else {
- $errorMessage = "";
- }
- return $errorMessage;
- }
- /**
- * Convert any value to boolean, strings like "false", "FalSE" and "off" are also considered as false
- *
- * @static
- * @access public
- * @param mixed $value
- * @return boolean
- */
- public static function booleanValue($value)
- {
- if (strcasecmp("false", $value) == 0 || strcasecmp("off", $value) == 0 || !$value) {
- return false;
- } else {
- return true;
- }
- }
- /**
- * @link http://pl.php.net/manual/en/function.imagecopyresampled.php
- * replacement to imagecopyresampled that will deliver results that are almost identical except MUCH faster (very typically 30 times faster)
- *
- * @static
- * @access public
- * @param string $dst_image
- * @param string $src_image
- * @param int $dst_x
- * @param int $dst_y
- * @param int $src_x
- * @param int $src_y
- * @param int $dst_w
- * @param int $dst_h
- * @param int $src_w
- * @param int $src_h
- * @param int $quality
- * @return boolean
- */
- public static function fastImageCopyResampled (&$dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h, $quality = 3)
- {
- if (empty($src_image) || empty($dst_image)) {
- return false;
- }
- if ($quality <= 1) {
- $temp = imagecreatetruecolor ($dst_w + 1, $dst_h + 1);
- imagecopyresized ($temp, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w + 1, $dst_h + 1, $src_w, $src_h);
- imagecopyresized ($dst_image, $temp, 0, 0, 0, 0, $dst_w, $dst_h, $dst_w, $dst_h);
- imagedestroy ($temp);
- } elseif ($quality < 5 && (($dst_w * $quality) < $src_w || ($dst_h * $quality) < $src_h)) {
- $tmp_w = $dst_w * $quality;
- $tmp_h = $dst_h * $quality;
- $temp = imagecreatetruecolor ($tmp_w + 1, $tmp_h + 1);
- imagecopyresized ($temp, $src_image, 0, 0, $src_x, $src_y, $tmp_w + 1, $tmp_h + 1, $src_w, $src_h);
- imagecopyresampled ($dst_image, $temp, $dst_x, $dst_y, 0, 0, $dst_w, $dst_h, $tmp_w, $tmp_h);
- imagedestroy ($temp);
- } else {
- imagecopyresampled ($dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
- }
- return true;
- }
- /**
- * @link http://pl.php.net/manual/pl/function.imagecreatefromjpeg.php
- * function posted by e dot a dot schultz at gmail dot com
- *
- * @static
- * @access public
- * @param string $filename
- * @return boolean
- */
- public static function setMemoryForImage($imageWidth, $imageHeight, $imageBits, $imageChannels)
- {
- $MB = 1048576; // number of bytes in 1M
- $K64 = 65536; // number of bytes in 64K
- $TWEAKFACTOR = 2.4; // Or whatever works for you
- $memoryNeeded = round( ( $imageWidth * $imageHeight
- * $imageBits
- * $imageChannels / 8
- + $K64
- ) * $TWEAKFACTOR
- ) + 3*$MB;
- //ini_get('memory_limit') only works if compiled with "--enable-memory-limit" also
- //Default memory limit is 8MB so well stick with that.
- //To find out what yours is, view your php.ini file.
- $memoryLimit = CKFinder_Connector_Utils_Misc::returnBytes(@ini_get('memory_limit'))/$MB;
- if (!$memoryLimit) {
- $memoryLimit = 8;
- }
- $memoryLimitMB = $memoryLimit * $MB;
- if (function_exists('memory_get_usage')) {
- if (memory_get_usage() + $memoryNeeded > $memoryLimitMB) {
- $newLimit = $memoryLimit + ceil( ( memory_get_usage()
- + $memoryNeeded
- - $memoryLimitMB
- ) / $MB
- );
- if (@ini_set( 'memory_limit', $newLimit . 'M' ) === false) {
- return false;
- }
- }
- } else {
- if ($memoryNeeded + 3*$MB > $memoryLimitMB) {
- $newLimit = $memoryLimit + ceil(( 3*$MB
- + $memoryNeeded
- - $memoryLimitMB
- ) / $MB
- );
- if (false === @ini_set( 'memory_limit', $newLimit . 'M' )) {
- return false;
- }
- }
- }
- return true;
- }
- /**
- * convert shorthand php.ini notation into bytes, much like how the PHP source does it
- * @link http://pl.php.net/manual/en/function.ini-get.php
- *
- * @static
- * @access public
- * @param string $val
- * @return int
- */
- public static function returnBytes($val) {
- $val = trim($val);
- if (!$val) {
- return 0;
- }
- $last = strtolower($val[strlen($val)-1]);
- switch($last) {
- // The 'G' modifier is available since PHP 5.1.0
- case 'g':
- $val *= 1024;
- case 'm':
- $val *= 1024;
- case 'k':
- $val *= 1024;
- }
- return $val;
- }
- /**
- * Checks if a value exists in an array (case insensitive)
- *
- * @static
- * @access public
- * @param string $needle
- * @param array $haystack
- * @return boolean
- */
- public static function inArrayCaseInsensitive($needle, $haystack)
- {
- if (!$haystack || !is_array($haystack)) {
- return false;
- }
- $lcase = array();
- foreach ($haystack as $key => $val) {
- $lcase[$key] = strtolower($val);
- }
- return in_array($needle, $lcase);
- }
- /**
- * UTF-8 compatible version of basename()
- *
- * @static
- * @access public
- * @param string $file
- * @return string
- */
- public static function mbBasename($file)
- {
- $explode = explode('/', str_replace("\\", "/", $file));
- return end($explode);
- }
- /**
- * Source: http://pl.php.net/imagecreate
- * (optimized for speed and memory usage, but yet not very efficient)
- *
- * @static
- * @access public
- * @param string $filename
- * @return resource
- */
- public static function imageCreateFromBmp($filename)
- {
- //20 seconds seems to be a reasonable value to not kill a server and process images up to 1680x1050
- @set_time_limit(20);
- if (false === ($f1 = fopen($filename, "rb"))) {
- return false;
- }
- $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1, 14));
- if ($FILE['file_type'] != 19778) {
- return false;
- }
- $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'.
- '/Vcompression/Vsize_bitmap/Vhoriz_resolution'.
- '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1, 40));
- $BMP['colors'] = pow(2,$BMP['bits_per_pixel']);
- if ($BMP['size_bitmap'] == 0) {
- $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset'];
- }
- $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8;
- $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']);
- $BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4);
- $BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4);
- $BMP['decal'] = 4-(4*$BMP['decal']);
- if ($BMP['decal'] == 4) {
- $BMP['decal'] = 0;
- }
- $PALETTE = array();
- if ($BMP['colors'] < 16777216) {
- $PALETTE = unpack('V'.$BMP['colors'], fread($f1, $BMP['colors']*4));
- }
- //2048x1536px@24bit don't even try to process larger files as it will probably fail
- if ($BMP['size_bitmap'] > 3 * 2048 * 1536) {
- return false;
- }
- $IMG = fread($f1, $BMP['size_bitmap']);
- fclose($f1);
- $VIDE = chr(0);
- $res = imagecreatetruecolor($BMP['width'],$BMP['height']);
- $P = 0;
- $Y = $BMP['height']-1;
- $line_length = $BMP['bytes_per_pixel']*$BMP['width'];
- if ($BMP['bits_per_pixel'] == 24) {
- while ($Y >= 0)
- {
- $X=0;
- $temp = unpack( "C*", substr($IMG, $P, $line_length));
- while ($X < $BMP['width'])
- {
- $offset = $X*3;
- imagesetpixel($res, $X++, $Y, ($temp[$offset+3] << 16) + ($temp[$offset+2] << 8) + $temp[$offset+1]);
- }
- $Y--;
- $P += $line_length + $BMP['decal'];
- }
- }
- elseif ($BMP['bits_per_pixel'] == 8)
- {
- while ($Y >= 0)
- {
- $X=0;
- $temp = unpack( "C*", substr($IMG, $P, $line_length));
- while ($X < $BMP['width'])
- {
- imagesetpixel($res, $X++, $Y, $PALETTE[$temp[$X] +1]);
- }
- $Y--;
- $P += $line_length + $BMP['decal'];
- }
- }
- elseif ($BMP['bits_per_pixel'] == 4)
- {
- while ($Y >= 0)
- {
- $X=0;
- $i = 1;
- $low = true;
- $temp = unpack( "C*", substr($IMG, $P, $line_length));
- while ($X < $BMP['width'])
- {
- if ($low) {
- $index = $temp[$i] >> 4;
- }
- else {
- $index = $temp[$i++] & 0x0F;
- }
- $low = !$low;
- imagesetpixel($res, $X++, $Y, $PALETTE[$index +1]);
- }
- $Y--;
- $P += $line_length + $BMP['decal'];
- }
- }
- elseif ($BMP['bits_per_pixel'] == 1)
- {
- $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
- if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7;
- elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6;
- elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5;
- elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4;
- elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3;
- elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2;
- elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1;
- elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1);
- $COLOR[1] = $PALETTE[$COLOR[1]+1];
- }
- else {
- return false;
- }
- return $res;
- }
- }