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Code source de Typo3 4.1.3 |
1 <?php 2 /*************************************************************** 3 * Copyright notice 4 * 5 * (c) 1999-2007 Kasper Skaarhoj (kasperYYYY@typo3.com) 6 * All rights reserved 7 * 8 * This script is part of the TYPO3 project. The TYPO3 project is 9 * free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * The GNU General Public License can be found at 15 * http://www.gnu.org/copyleft/gpl.html. 16 * A copy is found in the textfile GPL.txt and important notices to the license 17 * from the author is found in LICENSE.txt distributed with these scripts. 18 * 19 * 20 * This script is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * This copyright notice MUST APPEAR in all copies of the script! 26 ***************************************************************/ 27 /** 28 * Generates a thumbnail and returns an image stream, either GIF/PNG or JPG 29 * 30 * $Id: thumbs.php 1953 2007-01-28 20:29:09Z masi $ 31 * Revised for TYPO3 3.6 July/2003 by Kasper Skaarhoj 32 * 33 * @author Kasper Skaarhoj <kasperYYYY@typo3.com> 34 */ 35 /** 36 * [CLASS/FUNCTION INDEX of SCRIPT] 37 * 38 * 39 * 40 * 113: class SC_t3lib_thumbs 41 * 134: function init() 42 * 164: function main() 43 * 44 * SECTION: OTHER FUNCTIONS: 45 * 267: function errorGif($l1,$l2,$l3) 46 * 319: function fontGif($font) 47 * 366: function wrapFileName($inputName) 48 * 49 * TOTAL FUNCTIONS: 5 50 * (This index is automatically created/updated by the extension "extdeveval") 51 * 52 */ 53 54 55 // ******************************* 56 // Set error reporting 57 // ******************************* 58 error_reporting (E_ALL ^ E_NOTICE); 59 60 61 62 // ****************** 63 // Constants defined 64 // ****************** 65 define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':''); 66 define('TYPO3_MODE','BE'); 67 if(!defined('PATH_thisScript')) define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (php_sapi_name()=='cgi'||php_sapi_name()=='isapi' ||php_sapi_name()=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME'])))); 68 if(!defined('PATH_site')) define('PATH_site', ereg_replace('[^/]*.[^/]*$','',PATH_thisScript)); // the path to the website folder (see init.php) 69 if(!defined('PATH_t3lib')) define('PATH_t3lib', PATH_site.'t3lib/'); 70 define('PATH_typo3conf', PATH_site.'typo3conf/'); 71 define('TYPO3_mainDir', 'typo3/'); // This is the directory of the backend administration for the sites of this TYPO3 installation. 72 define('PATH_typo3', PATH_site.TYPO3_mainDir); 73 74 75 // ****************** 76 // Including config 77 // ****************** 78 require_once(PATH_t3lib.'class.t3lib_div.php'); 79 require_once(PATH_t3lib.'class.t3lib_extmgm.php'); 80 81 require(PATH_t3lib.'config_default.php'); 82 if (!defined ('TYPO3_db')) die ('The configuration file was not included.'); 83 if (!$TYPO3_CONF_VARS['GFX']['image_processing']) die ('ImageProcessing was disabled!'); 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 /** 102 * Class for generating a thumbnail from the input parameters given to the script 103 * 104 * Input GET var, &file: relative or absolute reference to an imagefile. WILL be validated against PATH_site / lockRootPath 105 * Input GET var, &size: integer-values defining size of thumbnail, format '[int]' or '[int]x[int]' 106 * 107 * Relative paths MUST BE the first two characters ONLY: eg: '../dir/file.gif', otherwise it is expect to be absolute 108 * 109 * @author Kasper Skaarhoj <kasperYYYY@typo3.com> 110 * @package TYPO3 111 * @subpackage t3lib 112 */ 113 class SC_t3lib_thumbs { 114 var $include_once = array(); 115 116 var $outdir = 'typo3temp/'; // The output directory of temporary files in PATH_site 117 var $output = ''; 118 var $sizeDefault='56x56'; 119 120 var $imageList; // Coming from $TYPO3_CONF_VARS['GFX']['imagefile_ext'] 121 var $input; // Contains the absolute path to the file for which to make a thumbnail (after init()) 122 123 // Internal, static: GPvar: 124 var $file; // Holds the input filename (GET: file) 125 var $size; // Holds the input size (GET: size) 126 var $mtime = 0; // Last modification time of the supplied file 127 128 129 /** 130 * Initialize; reading parameters with GPvar and checking file path 131 * Results in internal var, $this->input, being set to the absolute path of the file for which to make the thumbnail. 132 * 133 * @return void 134 */ 135 function init() { 136 global $TYPO3_CONF_VARS; 137 138 // Setting GPvars: 139 $file = t3lib_div::_GP('file'); 140 $size = t3lib_div::_GP('size'); 141 $md5sum = t3lib_div::_GP('md5sum'); 142 143 // Image extension list is set: 144 $this->imageList = $TYPO3_CONF_VARS['GFX']['imagefile_ext']; // valid extensions. OBS: No spaces in the list, all lowercase... 145 146 // If the filereference $this->file is relative, we correct the path 147 if (substr($file,0,3)=='../') { 148 $file = PATH_site.substr($file,3); 149 } 150 151 // Now the path is absolute. 152 // Checking for backpath and double slashes + the thumbnail can be made from files which are in the PATH_site OR the lockRootPath only! 153 if (t3lib_div::isAllowedAbsPath($file)) { 154 $mtime = filemtime($file); 155 } 156 157 // Do an MD5 check to prevent viewing of images without permission 158 $OK = FALSE; 159 if ($mtime) { 160 // Always use the absolute path for this check! 161 $check = basename($file).':'.$mtime.':'.$GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey']; 162 $md5_real = t3lib_div::shortMD5($check); 163 if (!strcmp($md5_real,$md5sum)) { 164 $OK = TRUE; 165 } 166 } 167 168 if ($OK) { 169 $this->input = $file; 170 $this->size = $size; 171 $this->mtime = $mtime; 172 } else { 173 die('Error: Image does not exist and/or MD5 checksum did not match.'); 174 } 175 } 176 177 /** 178 * Create the thumbnail 179 * Will exit before return if all is well. 180 * 181 * @return void 182 */ 183 function main() { 184 global $TYPO3_CONF_VARS; 185 186 // If file exists, we make a thumbsnail of the file. 187 if ($this->input && @file_exists($this->input)) { 188 189 // Check file extension: 190 $reg = array(); 191 if (ereg('(.*)\.([^\.]*$)',$this->input,$reg)) { 192 $ext=strtolower($reg[2]); 193 $ext=($ext=='jpeg')?'jpg':$ext; 194 if ($ext=='ttf') { 195 $this->fontGif($this->input); // Make font preview... (will not return) 196 } elseif (!t3lib_div::inList($this->imageList, $ext)) { 197 $this->errorGif('Not imagefile!',$ext,basename($this->input)); 198 } 199 } else { 200 $this->errorGif('Not imagefile!','No ext!',basename($this->input)); 201 } 202 203 // ... so we passed the extension test meaning that we are going to make a thumbnail here: 204 if (!$this->size) $this->size = $this->sizeDefault; // default 205 206 // I added extra check, so that the size input option could not be fooled to pass other values. That means the value is exploded, evaluated to an integer and the imploded to [value]x[value]. Furthermore you can specify: size=340 and it'll be translated to 340x340. 207 $sizeParts = explode('x', $this->size.'x'.$this->size); // explodes the input size (and if no "x" is found this will add size again so it is the same for both dimensions) 208 $sizeParts = array(t3lib_div::intInRange($sizeParts[0],1,1000),t3lib_div::intInRange($sizeParts[1],1,1000)); // Cleaning it up, only two parameters now. 209 $this->size = implode('x',$sizeParts); // Imploding the cleaned size-value back to the internal variable 210 $sizeMax = max($sizeParts); // Getting max value 211 212 // Init 213 $outpath = PATH_site.$this->outdir; 214 215 // Should be - ? 'png' : 'gif' - , but doesn't work (ImageMagick prob.?) 216 // René: png work for me 217 $thmMode = t3lib_div::intInRange($TYPO3_CONF_VARS['GFX']['thumbnails_png'],0); 218 $outext = ($ext!='jpg' || ($thmMode & 2)) ? ($thmMode & 1 ? 'png' : 'gif') : 'jpg'; 219 220 $outfile = 'tmb_'.substr(md5($this->input.$this->mtime.$this->size),0,10).'.'.$outext; 221 $this->output = $outpath.$outfile; 222 223 if ($TYPO3_CONF_VARS['GFX']['im']) { 224 // If thumbnail does not exist, we generate it 225 if (!@file_exists($this->output)) { 226 /* if (strstr($this->input,' ') || strstr($this->output,' ')) { 227 $this->errorGif('Spaces in','filepath',basename($this->input)); 228 } 229 */ // 16 colors for small (56) thumbs, 64 for bigger and all for jpegs 230 if ($outext=='jpg') { 231 $colors = ''; 232 } else { 233 $colors = ($sizeMax>56)?'-colors 64':'-colors 16'; 234 } 235 $parameters = '-sample '.$this->size.' '.$colors.' '.$this->wrapFileName($this->input.'[0]').' '.$this->wrapFileName($this->output); 236 $cmd = t3lib_div::imageMagickCommand('convert', $parameters); 237 exec($cmd); 238 if (!@file_exists($this->output)) { 239 $this->errorGif('No thumb','generated!',basename($this->input)); 240 } 241 } 242 // The thumbnail is read and output to the browser 243 if($fd = @fopen($this->output,'rb')) { 244 header('Content-type: image/'.$outext); 245 fpassthru($fd); 246 fclose($fd); 247 } else { 248 $this->errorGif('Read problem!','',$this->output); 249 } 250 } else exit; 251 } else { 252 $this->errorGif('No valid','inputfile!',basename($this->input)); 253 } 254 } 255 256 257 258 259 260 261 262 263 264 265 266 /*************************** 267 * 268 * OTHER FUNCTIONS: 269 * 270 ***************************/ 271 272 /** 273 * Creates error image based on gfx/notfound_thumb.png 274 * Requires GD lib enabled, otherwise it will exit with the three textstrings outputted as text. 275 * Outputs the image stream to browser and exits! 276 * 277 * @param string Text line 1 278 * @param string Text line 2 279 * @param string Text line 3 280 * @return void 281 */ 282 function errorGif($l1,$l2,$l3) { 283 global $TYPO3_CONF_VARS; 284 285 if (!$TYPO3_CONF_VARS['GFX']['gdlib']) die($l1.' '.$l2.' '.$l3); 286 287 // Creates the basis for the error image 288 if ($TYPO3_CONF_VARS['GFX']['gdlib_png']) { 289 header('Content-type: image/png'); 290 $im = imagecreatefrompng(PATH_typo3.'gfx/notfound_thumb.png'); 291 } else { 292 header('Content-type: image/gif'); 293 $im = imagecreatefromgif(PATH_typo3.'gfx/notfound_thumb.gif'); 294 } 295 // Sets background color and print color. 296 $white = imageColorAllocate($im, 0,0,0); 297 $black = imageColorAllocate($im, 255,255,0); 298 299 // Prints the text strings with the build-in font functions of GD 300 $x=0; 301 $font=0; 302 if ($l1) { 303 imagefilledrectangle($im, $x, 9, 56, 16, $black); 304 imageString($im,$font,$x,9,$l1,$white); 305 } 306 if ($l2) { 307 imagefilledrectangle($im, $x, 19, 56, 26, $black); 308 imageString($im,$font,$x,19,$l2,$white); 309 } 310 if ($l3) { 311 imagefilledrectangle($im, $x, 29, 56, 36, $black); 312 imageString($im,$font,$x,29,substr($l3,-14),$white); 313 } 314 315 // Outputting the image stream and exit 316 if ($TYPO3_CONF_VARS['GFX']['gdlib_png']) { 317 imagePng($im); 318 } else { 319 imageGif($im); 320 } 321 imagedestroy($im); 322 exit; 323 } 324 325 /** 326 * Creates a font-preview thumbnail. 327 * This means a PNG/GIF file with the text "AaBbCc...." set with the font-file given as input and in various sizes to show how the font looks 328 * Requires GD lib enabled. 329 * Outputs the image stream to browser and exits! 330 * 331 * @param string The filepath to the font file (absolute, probably) 332 * @return void 333 */ 334 function fontGif($font) { 335 global $TYPO3_CONF_VARS; 336 337 if (!$TYPO3_CONF_VARS['GFX']['gdlib']) die(''); 338 339 // Create image and set background color to white. 340 $im = imageCreate(250,76); 341 $white = imageColorAllocate($im, 255,255,255); 342 $col = imageColorAllocate($im, 0,0,0); 343 344 // The test string and offset in x-axis. 345 $string = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZzÆæØøÅåÄäÖöÜüß'; 346 $x=13; 347 348 // Print (with non-ttf font) the size displayed 349 imagestring ($im, 1, 0, 2, '10', $col); 350 imagestring ($im, 1, 0, 15, '12', $col); 351 imagestring ($im, 1, 0, 30, '14', $col); 352 imagestring ($im, 1, 0, 47, '18', $col); 353 imagestring ($im, 1, 0, 68, '24', $col); 354 355 // Print with ttf-font the test string 356 imagettftext ($im, t3lib_div::freetypeDpiComp(10), 0, $x, 8, $col, $font, $string); 357 imagettftext ($im, t3lib_div::freetypeDpiComp(12), 0, $x, 21, $col, $font, $string); 358 imagettftext ($im, t3lib_div::freetypeDpiComp(14), 0, $x, 36, $col, $font, $string); 359 imagettftext ($im, t3lib_div::freetypeDpiComp(18), 0, $x, 53, $col, $font, $string); 360 imagettftext ($im, t3lib_div::freetypeDpiComp(24), 0, $x, 74, $col, $font, $string); 361 362 // Output PNG or GIF based on $TYPO3_CONF_VARS['GFX']['gdlib_png'] 363 if ($TYPO3_CONF_VARS['GFX']['gdlib_png']) { 364 header('Content-type: image/png'); 365 imagePng($im); 366 } else { 367 header('Content-type: image/gif'); 368 imageGif($im); 369 } 370 imagedestroy($im); 371 exit; 372 } 373 374 /** 375 * Wrapping the input filename in double-quotes 376 * 377 * @param string Input filename 378 * @return string The output wrapped in "" (if there are spaces in the filepath) 379 * @access private 380 */ 381 function wrapFileName($inputName) { 382 if (strstr($inputName,' ')) { 383 $inputName='"'.$inputName.'"'; 384 } 385 return $inputName; 386 } 387 } 388 389 // Include extension class? 390 if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/thumbs.php']) { 391 include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/thumbs.php']); 392 } 393 394 395 396 397 // Make instance: 398 $SOBE = t3lib_div::makeInstance('SC_t3lib_thumbs'); 399 $SOBE->init(); 400 $SOBE->main(); 401 ?>
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| Généré le : Sun Nov 25 17:13:16 2007 | par Balluche grâce à PHPXref 0.7 |
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