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<?php
2
// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery                           |
4
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
7
// | branch        : BSF (Best So Far)
8
// | file          : $RCSfile: thumbnail.php,v $
9
// | last update   : $Date: 2005/01/20 23:41:27 $
10
// | last modifier : $Author: plg $
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// | revision      : $Revision: 1.19 $
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// +-----------------------------------------------------------------------+
13
// | This program is free software; you can redistribute it and/or modify  |
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// | it under the terms of the GNU General Public License as published by  |
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// | the Free Software Foundation                                          |
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// |                                                                       |
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// | This program is distributed in the hope that it will be useful, but   |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
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// | General Public License for more details.                              |
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// |                                                                       |
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// | You should have received a copy of the GNU General Public License     |
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// | along with this program; if not, write to the Free Software           |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA.                                                                  |
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// +-----------------------------------------------------------------------+
27
include_once( PHPWG_ROOT_PATH.'admin/include/isadmin.inc.php' );
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//------------------------------------------------------------------- functions
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// RatioResizeImg creates a new picture (a thumbnail since it is supposed to
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// be smaller than original picture !) in the sub directory named
31
// "thumbnail".
32
function RatioResizeImg($path, $newWidth, $newHeight, $tn_ext)
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{
34
  global $conf, $lang, $errors;
35
 
36
  $filename = basename($path);
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  $dirname = dirname($path);
38
 
39
  // extension of the picture filename
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  $extension = get_extension($filename);
41
 
42
  if ($extension == 'jpg' or $extension == 'JPG')
43
  {
44
    $srcImage = @imagecreatefromjpeg($path);
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  }
46
  else if ($extension == 'png' or $extension == 'PNG')
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  {
48
    $srcImage = @imagecreatefrompng($path);
49
  }
50
  else
51
  {
52
    unset($extension);
53
  }
54
 
55
  if ( isset( $srcImage ) )
56
  {
57
    // width/height
58
    $srcWidth    = imagesx( $srcImage ); 
59
    $srcHeight   = imagesy( $srcImage ); 
60
    $ratioWidth  = $srcWidth/$newWidth;
61
    $ratioHeight = $srcHeight/$newHeight;
62
 
63
    // maximal size exceeded ?
64
    if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) )
65
    {
66
      if ( $ratioWidth < $ratioHeight)
67
      { 
68
        $destWidth = $srcWidth/$ratioHeight;
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        $destHeight = $newHeight; 
70
      }
71
      else
72
      { 
73
        $destWidth = $newWidth; 
74
        $destHeight = $srcHeight/$ratioWidth;
75
      }
76
    }
77
    else
78
    {
79
      $destWidth = $srcWidth;
80
      $destHeight = $srcHeight;
81
    }
82
    // according to the GD version installed on the server
83
    if ( $_POST['gd'] == 2 )
84
    {
85
      // GD 2.0 or more recent -> good results (but slower)
86
      $destImage = imagecreatetruecolor( $destWidth, $destHeight); 
87
      imagecopyresampled( $destImage, $srcImage, 0, 0, 0, 0,
88
                          $destWidth,$destHeight,$srcWidth,$srcHeight );
89
    }
90
    else
91
    {
92
      // GD prior to version  2 -> pretty bad results :-/ (but fast)
93
      $destImage = imagecreate( $destWidth, $destHeight);
94
      imagecopyresized( $destImage, $srcImage, 0, 0, 0, 0,
95
                        $destWidth,$destHeight,$srcWidth,$srcHeight );
96
    }
97
 
98
    $tndir = $dirname.'/thumbnail';
99
    if (!is_dir($tndir))
100
    {
101
      if (!is_writable($dirname))
102
      {
103
        array_push($errors, '['.$dirname.'] : '.$lang['no_write_access']);
104
        return false;
105
      }
106
      umask(0000);
107
      mkdir($tndir, 0777);
108
    }
109
 
110
    $dest_file = $tndir.'/'.$conf['prefix_thumbnail'];
111
    $dest_file.= get_filename_wo_extension($filename);
112
    $dest_file.= '.'.$tn_ext;
113
 
114
    // creation and backup of final picture
115
    if (!is_writable($tndir))
116
    {
117
      array_push($errors, '['.$tndir.'] : '.$lang['no_write_access']);
118
      return false;
119
    }
120
    imagejpeg($destImage, $dest_file);
121
    // freeing memory ressources
122
    imagedestroy( $srcImage );
123
    imagedestroy( $destImage );
124
 
125
    list($tn_width, $tn_height) = getimagesize($dest_file);
126
    $tn_size = floor(filesize($dest_file) / 1024).' KB';
127
 
128
    $info = array( 'path'      => $path,
129
                   'tn_file'   => $dest_file,
130
                   'tn_width'  => $tn_width,
131
                   'tn_height' => $tn_height,
132
                   'tn_size'   => $tn_size );
133
    return $info;
134
  }
135
  // error
136
  else
137
  {
138
    echo $lang['tn_no_support']." ";
139
    if ( isset( $extenstion ) )
140
    {
141
      echo $lang['tn_format'].' '.$extension;
142
    }
143
    else
144
    {
145
      echo $lang['tn_thisformat'];
146
    }
147
    exit();
148
  }
149
}
150
 
151
$errors = array();
152
$pictures = array();
153
$stats = array();
154
// +-----------------------------------------------------------------------+
155
// |                       template initialization                         |
156
// +-----------------------------------------------------------------------+
157
$template->set_filenames( array('thumbnail'=>'admin/thumbnail.tpl') );
158
 
159
$template->assign_vars(array(
160
  'L_THUMBNAIL_TITLE'=>$lang['tn_dirs_title'],
161
  'L_UNLINK'=>$lang['tn_no_missing'],
162
  'L_MISSING_THUMBNAILS'=>$lang['tn_dirs_alone'],
163
  'L_RESULTS'=>$lang['tn_results_title'],
164
  'L_PATH'=>$lang['path'],
165
  'L_FILESIZE'=>$lang['filesize'],
166
  'L_WIDTH'=>$lang['tn_width'],
167
  'L_HEIGHT'=>$lang['tn_height'],
168
  'L_GENERATED'=>$lang['tn_results_gen_time'],
169
  'L_THUMBNAIL'=>$lang['thumbnail'],
170
  'L_PARAMS'=>$lang['tn_params_title'],
171
  'L_GD'=>$lang['tn_params_GD'],
172
  'L_GD_INFO'=>$lang['tn_params_GD_info'],
173
  'L_WIDTH_INFO'=>$lang['tn_params_width_info'],
174
  'L_HEIGHT_INFO'=>$lang['tn_params_height_info'],
175
  'L_CREATE'=>$lang['tn_params_create'],
176
  'L_CREATE_INFO'=>$lang['tn_params_create_info'],
177
  'L_FORMAT'=>$lang['tn_params_format'],
178
  'L_FORMAT_INFO'=>$lang['tn_params_format_info'],
179
  'L_SUBMIT'=>$lang['submit'],
180
  'L_REMAINING'=>$lang['tn_alone_title'],
181
  'L_TN_STATS'=>$lang['tn_stats'],
182
  'L_TN_NB_STATS'=>$lang['tn_stats_nb'],
183
  'L_TN_TOTAL'=>$lang['tn_stats_total'],
184
  'L_TN_MAX'=>$lang['tn_stats_max'],
185
  'L_TN_MIN'=>$lang['tn_stats_min'],
186
  'L_TN_AVERAGE'=>$lang['tn_stats_mean'],
187
  'L_ALL'=>$lang['tn_all'],
188
 
189
  'T_STYLE'=>$user['template']
190
  ));
191
// +-----------------------------------------------------------------------+
192
// |                   search pictures without thumbnails                  |
193
// +-----------------------------------------------------------------------+
194
$wo_thumbnails = array();
195
$thumbnalized = array();
196
 
197
// what is the directory to search in ?
198
$query = '
199
SELECT galleries_url
200
  FROM '.SITES_TABLE.'
201
  WHERE id = 1
202
;';
203
list($galleries_url) = mysql_fetch_array(pwg_query($query));
204
$basedir = preg_replace('#/*$#', '', $galleries_url);
205
 
206
$fs = get_fs($basedir);
207
// because isset is one hundred time faster than in_array
208
$fs['thumbnails'] = array_flip($fs['thumbnails']);
209
 
210
foreach ($fs['elements'] as $path)
211
{
212
  // only pictures need thumbnails
213
  if (in_array(get_extension($path), $conf['picture_ext']))
214
  {
215
    $dirname = dirname($path);
216
    $filename = basename($path);
217
 
218
    // only files matching the authorized filename pattern can be considered
219
    // as "without thumbnail"
220
    if (!preg_match('/^[a-zA-Z0-9-_.]+$/', $filename))
221
    {
222
      continue;
223
    }
224
 
225
    // searching the element
226
    $filename_wo_ext = get_filename_wo_extension($filename);
227
    $tn_ext = '';
228
    $base_test = $dirname.'/thumbnail/';
229
    $base_test.= $conf['prefix_thumbnail'].$filename_wo_ext.'.';
230
    foreach ($conf['picture_ext'] as $ext)
231
    {
232
      if (isset($fs['thumbnails'][$base_test.$ext]))
233
      {
234
        $tn_ext = $ext;
235
        break;
236
      }
237
    }
238
 
239
    if (empty($tn_ext))
240
    {
241
      array_push($wo_thumbnails, $path);
242
    }
243
  }
244
}
245
// +-----------------------------------------------------------------------+
246
// |                         thumbnails creation                           |
247
// +-----------------------------------------------------------------------+
248
if (isset($_POST['submit']))
249
{
250
  $errors = array();
251
  $times = array();
252
  $infos = array();
253
 
254
  // checking criteria
255
  if (!ereg('^[0-9]{2,3}$', $_POST['width']) or $_POST['width'] < 10)
256
  {
257
    array_push($errors, $lang['tn_err_width'].' 10');
258
  }
259
  if (!ereg('^[0-9]{2,3}$', $_POST['height']) or $_POST['height'] < 10)
260
  {
261
    array_push($errors, $lang['tn_err_height'].' 10');
262
  }
263
 
264
  // picture miniaturization
265
  if (count($errors) == 0)
266
  {
267
    $num = 1;
268
    foreach ($wo_thumbnails as $path)
269
    {
270
      if (is_numeric($_POST['n']) and $num > $_POST['n'])
271
      {
272
        break;
273
      }
274
 
275
      $starttime = get_moment();
276
      if ($info = RatioResizeImg($path,$_POST['width'],$_POST['height'],'jpg'))
277
      {
278
        $endtime = get_moment();
279
        $info['time'] = ($endtime - $starttime) * 1000;
280
        array_push($infos, $info);
281
        array_push($times, $info['time']);
282
        array_push($thumbnalized, $path);
283
        $num++;
284
      }
285
      else
286
      {
287
        break;
288
      }
289
    }
290
 
291
    if (count($infos) > 0)
292
    {
293
      $sum = array_sum($times);
294
      $average = $sum / count($times);
295
      sort($times, SORT_NUMERIC);
296
      $max = array_pop($times);
297
      if (count($thumbnalized) == 1)
298
      {
299
        $min = $max;
300
      }
301
      else
302
      {
303
        $min = array_shift($times);
304
      }
305
 
306
      $template->assign_block_vars(
307
        'results',
308
        array(
309
          'TN_NB'=>count($infos),
310
          'TN_TOTAL'=>number_format($sum, 2, '.', ' ').' ms',
311
          'TN_MAX'=>number_format($max, 2, '.', ' ').' ms',
312
          'TN_MIN'=>number_format($min, 2, '.', ' ').' ms',
313
          'TN_AVERAGE'=>number_format($average, 2, '.', ' ').' ms'
314
          ));
315
 
316
      foreach ($infos as $i => $info)
317
      {
318
        if ($info['time'] == $max)
319
        {
320
          $class = 'worst_gen_time';
321
        }
322
        else if ($info['time'] == $min)
323
        {
324
          $class = 'best_gen_time';
325
        }
326
        else
327
        {
328
          $class = '';
329
        }
330
 
331
        $template->assign_block_vars(
332
          'results.picture',
333
          array(
334
            'PATH'=>$info['path'],
335
            'TN_FILE_IMG'=>$info['tn_file'],
336
            'TN_FILESIZE_IMG'=>$info['tn_size'],
337
            'TN_WIDTH_IMG'=>$info['tn_width'],
338
            'TN_HEIGHT_IMG'=>$info['tn_height'],
339
            'GEN_TIME'=>number_format($info['time'], 2, '.', ' ').' ms',
340
 
341
            'T_CLASS'=>$class
342
            ));
343
      }
344
    }
345
  }
346
}
347
// +-----------------------------------------------------------------------+
348
// |                            errors display                             |
349
// +-----------------------------------------------------------------------+
350
if (count($errors) != 0)
351
{
352
  $template->assign_block_vars('errors',array());
353
  foreach ($errors as $error)
354
  {
355
    $template->assign_block_vars('errors.error',array('ERROR'=>$error));
356
  }
357
}
358
// +-----------------------------------------------------------------------+
359
// |             form & pictures without thumbnails display                |
360
// +-----------------------------------------------------------------------+
361
$remainings = array_diff($wo_thumbnails, $thumbnalized);
362
 
363
if (count($remainings) > 0)
364
{
365
  $form_url = PHPWG_ROOT_PATH.'admin.php?page=thumbnail';
366
  $gd = !empty($_POST['gd']) ? $_POST['gd'] : 2;
367
  $width = !empty($_POST['width']) ? $_POST['width'] : $conf['tn_width'];
368
  $height = !empty($_POST['height']) ? $_POST['height'] : $conf['tn_height'];
369
  $n = !empty($_POST['n']) ? $_POST['n'] : 5;
370
 
371
  $gdlabel = 'GD'.$gd.'_CHECKED';
372
  $nlabel = 'n_'.$n.'_CHECKED';
373
 
374
  $template->assign_block_vars(
375
    'params',
376
    array(
377
      'F_ACTION'=>add_session_id($form_url),
378
      $gdlabel=>'checked="checked"',
379
      $nlabel=>'checked="checked"',
380
      'WIDTH_TN'=>$width,
381
      'HEIGHT_TN'=>$height
382
      ));
383
 
384
  $template->assign_block_vars(
385
    'remainings',
386
    array('TOTAL_IMG'=>count($remainings)));
387
 
388
  $num = 1;
389
  foreach ($remainings as $path)
390
  {
391
    $class = ($num % 2) ? 'row1' : 'row2';
392
    list($width, $height) = getimagesize($path);
393
    $size = floor(filesize($path) / 1024).' KB';
394
 
395
    $template->assign_block_vars(
396
      'remainings.remaining',
397
      array(
398
        'NB_IMG'=>($num),
399
        'PATH'=>$path,
400
        'FILESIZE_IMG'=>$size,
401
        'WIDTH_IMG'=>$width,
402
        'HEIGHT_IMG'=>$height,
403
 
404
        'T_CLASS'=>$class
405
        ));
406
 
407
    $num++;
408
  }
409
}
410
else
411
{
412
  $template->assign_block_vars('warning', array());
413
}
414
// +-----------------------------------------------------------------------+
415
// |                           return to admin                             |
416
// +-----------------------------------------------------------------------+
417
$template->assign_var_from_handle('ADMIN_CONTENT', 'thumbnail');
418
?>