[TASK] Disable compression for inlineJs in Backend
[Packages/TYPO3.CMS.git] / t3lib / thumbs.php
1 <?php
2 /***************************************************************
3 * Copyright notice
4 *
5 * (c) 1999-2011 Kasper Skårhøj (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 * Revised for TYPO3 3.6 July/2003 by Kasper Skårhøj
31 *
32 * @author Kasper Skårhøj <kasperYYYY@typo3.com>
33 */
34
35
36 // *******************************
37 // Set error reporting
38 // *******************************
39 error_reporting(E_ALL ^ E_NOTICE ^ E_DEPRECATED);
40
41
42
43 // ******************
44 // Constants defined
45 // ******************
46 define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
47 define('TYPO3_MODE','BE');
48
49 if(!defined('PATH_thisScript')) {
50 define('PATH_thisScript', str_replace('//', '/', str_replace('\\', '/',
51 (PHP_SAPI == 'fpm-fcgi' || PHP_SAPI == 'cgi' || PHP_SAPI == 'isapi' || PHP_SAPI == 'cgi-fcgi') &&
52 ($_SERVER['ORIG_PATH_TRANSLATED'] ? $_SERVER['ORIG_PATH_TRANSLATED'] : $_SERVER['PATH_TRANSLATED']) ?
53 ($_SERVER['ORIG_PATH_TRANSLATED'] ? $_SERVER['ORIG_PATH_TRANSLATED'] : $_SERVER['PATH_TRANSLATED']) :
54 ($_SERVER['ORIG_SCRIPT_FILENAME'] ? $_SERVER['ORIG_SCRIPT_FILENAME'] : $_SERVER['SCRIPT_FILENAME']))));
55 }
56
57 if(!defined('PATH_site')) define('PATH_site', preg_replace('/[^\/]*.[^\/]*$/','',PATH_thisScript)); // the path to the website folder (see init.php)
58 if(!defined('PATH_t3lib')) define('PATH_t3lib', PATH_site.'t3lib/');
59 define('PATH_typo3conf', PATH_site.'typo3conf/');
60 define('TYPO3_mainDir', 'typo3/'); // This is the directory of the backend administration for the sites of this TYPO3 installation.
61 define('PATH_typo3', PATH_site.TYPO3_mainDir);
62
63
64 // ******************
65 // Including config
66 // ******************
67 require_once(PATH_t3lib.'class.t3lib_div.php');
68 require_once(PATH_t3lib.'class.t3lib_extmgm.php');
69
70 require(PATH_t3lib.'config_default.php');
71 if (!defined ('TYPO3_db')) {
72 die ('The configuration file was not included.');
73 }
74 if (!$GLOBALS['TYPO3_CONF_VARS']['GFX']['image_processing']) {
75 die ('ImageProcessing was disabled!');
76 }
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94 /**
95 * Class for generating a thumbnail from the input parameters given to the script
96 *
97 * Input GET var, &file: relative or absolute reference to an imagefile. WILL be validated against PATH_site / lockRootPath
98 * Input GET var, &size: integer-values defining size of thumbnail, format '[int]' or '[int]x[int]'
99 *
100 * Relative paths MUST BE the first two characters ONLY: eg: '../dir/file.gif', otherwise it is expect to be absolute
101 *
102 * @author Kasper Skårhøj <kasperYYYY@typo3.com>
103 * @package TYPO3
104 * @subpackage t3lib
105 */
106 class SC_t3lib_thumbs {
107 var $include_once = array();
108
109 var $outdir = 'typo3temp/'; // The output directory of temporary files in PATH_site
110 var $output = '';
111 var $sizeDefault='64x64';
112
113 var $imageList; // Coming from $GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext']
114 var $input; // Contains the absolute path to the file for which to make a thumbnail (after init())
115
116 // Internal, static: GPvar:
117 var $file; // Holds the input filename (GET: file)
118 var $size; // Holds the input size (GET: size)
119 var $mtime = 0; // Last modification time of the supplied file
120
121
122 /**
123 * Initialize; reading parameters with GPvar and checking file path
124 * Results in internal var, $this->input, being set to the absolute path of the file for which to make the thumbnail.
125 *
126 * @return void
127 */
128 function init() {
129 // Setting GPvars:
130 $file = t3lib_div::_GP('file');
131 $size = t3lib_div::_GP('size');
132 $md5sum = t3lib_div::_GP('md5sum');
133
134 // Image extension list is set:
135 $this->imageList = $GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext']; // valid extensions. OBS: No spaces in the list, all lowercase...
136
137 // If the filereference $this->file is relative, we correct the path
138 if (substr($file,0,3)=='../') {
139 $file = PATH_site.substr($file,3);
140 }
141
142 $mtime = 0;
143 // Now the path is absolute.
144 // Checking for backpath and double slashes + the thumbnail can be made from files which are in the PATH_site OR the lockRootPath only!
145 if (t3lib_div::isAllowedAbsPath($file)) {
146 $mtime = filemtime($file);
147 }
148
149 // Do an MD5 check to prevent viewing of images without permission
150 $OK = FALSE;
151 if ($mtime) {
152 // Always use the absolute path for this check!
153 $check = basename($file).':'.$mtime.':'.$GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey'];
154 $md5_real = t3lib_div::shortMD5($check);
155 if (!strcmp($md5_real,$md5sum)) {
156 $OK = TRUE;
157 }
158 }
159
160 if ($OK) {
161 $this->input = $file;
162 $this->size = $size;
163 $this->mtime = $mtime;
164 } else {
165 // hide the path to the document root;
166 $publicFilename = substr($file, strlen(PATH_site));
167 throw new RuntimeException(
168 'TYPO3 Fatal Error: Image \'' . $publicFilename . '\' does not exist and/or MD5 checksum did not match. ' .
169 'If the target file exists and its file name contains special characters, the setting of ' .
170 '$TYPO3_CONF_VARS[SYS][systemLocale] might be wrong.'
171 ,
172 1270853950
173 );
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 // If file exists, we make a thumbsnail of the file.
185 if ($this->input && file_exists($this->input)) {
186
187 // Check file extension:
188 $reg = array();
189 if (preg_match('/(.*)\.([^\.]*$)/', $this->input, $reg)) {
190 $ext=strtolower($reg[2]);
191 $ext=($ext=='jpeg') ? 'jpg' : $ext;
192 if ($ext=='ttf') {
193 $this->fontGif($this->input); // Make font preview... (will not return)
194 } elseif (!t3lib_div::inList($this->imageList, $ext)) {
195 $this->errorGif('Not imagefile!', $ext, basename($this->input));
196 }
197 } else {
198 $this->errorGif('Not imagefile!', 'No ext!', basename($this->input));
199 }
200
201 // ... so we passed the extension test meaning that we are going to make a thumbnail here:
202 if (!$this->size) $this->size = $this->sizeDefault; // default
203
204 // 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.
205 $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)
206 $sizeParts = array(t3lib_utility_Math::forceIntegerInRange($sizeParts[0], 1, 1000), t3lib_utility_Math::forceIntegerInRange($sizeParts[1], 1, 1000)); // Cleaning it up, only two parameters now.
207 $this->size = implode('x', $sizeParts); // Imploding the cleaned size-value back to the internal variable
208 $sizeMax = max($sizeParts); // Getting max value
209
210 // Init
211 $outpath = PATH_site . $this->outdir;
212
213 // Should be - ? 'png' : 'gif' - , but doesn't work (ImageMagick prob.?)
214 // René: png work for me
215 $thmMode = t3lib_utility_Math::forceIntegerInRange($GLOBALS['TYPO3_CONF_VARS']['GFX']['thumbnails_png'], 0);
216 $outext = ($ext!='jpg' || ($thmMode & 2)) ? ($thmMode & 1 ? 'png' : 'gif') : 'jpg';
217
218 $outfile = 'tmb_' . substr(md5($this->input . $this->mtime . $this->size), 0, 10) . '.' . $outext;
219 $this->output = $outpath . $outfile;
220
221 if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['im']) {
222 // If thumbnail does not exist, we generate it
223 if (!file_exists($this->output)) {
224 $parameters = '-sample ' . $this->size . ' ' . $this->wrapFileName($this->input) . '[0] ' . $this->wrapFileName($this->output);
225 $cmd = t3lib_div::imageMagickCommand('convert', $parameters);
226 t3lib_utility_Command::exec($cmd);
227 if (!file_exists($this->output)) {
228 $this->errorGif('No thumb','generated!', basename($this->input));
229 } else {
230 t3lib_div::fixPermissions($this->output);
231 }
232 }
233 // The thumbnail is read and output to the browser
234 if($fd = @fopen($this->output,'rb')) {
235 header('Content-type: image/' . $outext);
236 fpassthru($fd);
237 fclose($fd);
238 } else {
239 $this->errorGif('Read problem!', '', $this->output);
240 }
241 } else exit;
242 } else {
243 $this->errorGif('No valid','inputfile!', basename($this->input));
244 }
245 }
246
247
248
249
250
251
252
253
254
255
256
257 /***************************
258 *
259 * OTHER FUNCTIONS:
260 *
261 ***************************/
262
263 /**
264 * Creates error image based on gfx/notfound_thumb.png
265 * Requires GD lib enabled, otherwise it will exit with the three textstrings outputted as text.
266 * Outputs the image stream to browser and exits!
267 *
268 * @param string Text line 1
269 * @param string Text line 2
270 * @param string Text line 3
271 * @return void
272 */
273 function errorGif($l1,$l2,$l3) {
274 if (!$GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib']) {
275 throw new RuntimeException(
276 'TYPO3 Fatal Error: No gdlib. ' . $l1 . ' ' . $l2 . ' ' . $l3,
277 1270853952
278 );
279 }
280
281 // Creates the basis for the error image
282 if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib_png']) {
283 header('Content-type: image/png');
284 $im = imagecreatefrompng(PATH_typo3 . 'gfx/notfound_thumb.png');
285 } else {
286 header('Content-type: image/gif');
287 $im = imagecreatefromgif(PATH_typo3 . 'gfx/notfound_thumb.gif');
288 }
289 // Sets background color and print color.
290 $white = imageColorAllocate($im, 255, 255, 255);
291 $black = imageColorAllocate($im, 0, 0, 0);
292
293 // Prints the text strings with the build-in font functions of GD
294 $x=0;
295 $font=0;
296 if ($l1) {
297 imagefilledrectangle($im, $x, 9, 56, 16, $white);
298 imageString($im, $font, $x, 9, $l1, $black);
299 }
300 if ($l2) {
301 imagefilledrectangle($im, $x, 19, 56, 26, $white);
302 imageString($im, $font, $x, 19, $l2, $black);
303 }
304 if ($l3) {
305 imagefilledrectangle($im, $x, 29, 56, 36, $white);
306 imageString($im, $font, $x, 29, substr($l3, -14), $black);
307 }
308
309 // Outputting the image stream and exit
310 if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib_png']) {
311 imagePng($im);
312 } else {
313 imageGif($im);
314 }
315 imagedestroy($im);
316 exit;
317 }
318
319 /**
320 * Creates a font-preview thumbnail.
321 * This means a PNG/GIF file with the text "AaBbCc...." set with the font-file given as input and in various sizes to show how the font looks
322 * Requires GD lib enabled.
323 * Outputs the image stream to browser and exits!
324 *
325 * @param string The filepath to the font file (absolute, probably)
326 * @return void
327 */
328 function fontGif($font) {
329 if (!$GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib']) {
330 throw new RuntimeException(
331 'TYPO3 Fatal Error: No gdlib.',
332 1270853953
333 );
334 }
335
336 // Create image and set background color to white.
337 $im = imageCreate(250, 76);
338 $white = imageColorAllocate($im, 255, 255, 255);
339 $col = imageColorAllocate($im, 0, 0, 0);
340
341 // The test string and offset in x-axis.
342 $string = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZzÆæØøÅåÄäÖöÜüß';
343 $x=13;
344
345 // Print (with non-ttf font) the size displayed
346 imagestring ($im, 1, 0, 2, '10', $col);
347 imagestring ($im, 1, 0, 15, '12', $col);
348 imagestring ($im, 1, 0, 30, '14', $col);
349 imagestring ($im, 1, 0, 47, '18', $col);
350 imagestring ($im, 1, 0, 68, '24', $col);
351
352 // Print with ttf-font the test string
353 imagettftext ($im, t3lib_div::freetypeDpiComp(10), 0, $x, 8, $col, $font, $string);
354 imagettftext ($im, t3lib_div::freetypeDpiComp(12), 0, $x, 21, $col, $font, $string);
355 imagettftext ($im, t3lib_div::freetypeDpiComp(14), 0, $x, 36, $col, $font, $string);
356 imagettftext ($im, t3lib_div::freetypeDpiComp(18), 0, $x, 53, $col, $font, $string);
357 imagettftext ($im, t3lib_div::freetypeDpiComp(24), 0, $x, 74, $col, $font, $string);
358
359 // Output PNG or GIF based on $GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib_png']
360 if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib_png']) {
361 header('Content-type: image/png');
362 imagePng($im);
363 } else {
364 header('Content-type: image/gif');
365 imageGif($im);
366 }
367 imagedestroy($im);
368 exit;
369 }
370
371 /**
372 * Escapes a file name so it can safely be used on the command line.
373 *
374 * @param string $inputName filename to safeguard, must not be empty
375 *
376 * @return string $inputName escaped as needed
377 */
378 protected function wrapFileName($inputName) {
379 if ($GLOBALS['TYPO3_CONF_VARS']['SYS']['UTF8filesystem']) {
380 $currentLocale = setlocale(LC_CTYPE, 0);
381 setlocale(LC_CTYPE, $GLOBALS['TYPO3_CONF_VARS']['SYS']['systemLocale']);
382 }
383 $escapedInputName = escapeshellarg($inputName);
384 if ($GLOBALS['TYPO3_CONF_VARS']['SYS']['UTF8filesystem']) {
385 setlocale(LC_CTYPE, $currentLocale);
386 }
387 return $escapedInputName;
388 }
389 }
390
391 if (defined('TYPO3_MODE') && isset($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['t3lib/thumbs.php'])) {
392 include_once($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['t3lib/thumbs.php']);
393 }
394
395
396
397
398 // Make instance:
399 $SOBE = t3lib_div::makeInstance('SC_t3lib_thumbs');
400 $SOBE->init();
401 $SOBE->main();
402
403 ?>