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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2016 Piwigo Team http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify |
// | it under the terms of the GNU General Public License as published by |
// | the Free Software Foundation |
// | |
// | This program is distributed in the hope that it will be useful, but |
// | WITHOUT ANY WARRANTY; without even the implied warranty of |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
// | General Public License for more details. |
// | |
// | You should have received a copy of the GNU General Public License |
// | along with this program; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+
if( !defined("PHPWG_ROOT_PATH") )
{
die ("Hacking attempt!");
}
function get_watermark_filename($list, $candidate, $step = 0)
{
global $change_name;
$change_name = $candidate;
if ($step != 0)
{
$change_name .= '-'.$step;
}
if (in_array($change_name, $list))
{
return get_watermark_filename($list, $candidate, $step+1);
}
return $change_name.'.png';
}
$errors = array();
$pwatermark = $_POST['w'];
// step 0 - manage upload if any
if (isset($_FILES['watermarkImage']) and !empty($_FILES['watermarkImage']['tmp_name']))
{
list($width, $height, $type) = getimagesize($_FILES['watermarkImage']['tmp_name']);
if (IMAGETYPE_PNG != $type)
{
$errors['watermarkImage'] = sprintf(
l10n('Allowed file types: %s.'),
'PNG'
);
}
else
{
$upload_dir = PHPWG_ROOT_PATH.PWG_LOCAL_DIR.'watermarks';
if (mkgetdir($upload_dir, MKGETDIR_DEFAULT&~MKGETDIR_DIE_ON_ERROR))
{
// file name may include exotic chars like single quote, we need a safe name
$new_name = str2url(get_filename_wo_extension($_FILES['watermarkImage']['name']));
// we need existing watermarks to avoid overwritting one
$watermark_files = array();
if ( ($glob=glob(PHPWG_ROOT_PATH.PWG_LOCAL_DIR.'watermarks/*.png')) !== false)
{
foreach ($glob as $file)
{
$watermark_files[] = get_filename_wo_extension(
substr($file, strlen(PHPWG_ROOT_PATH.PWG_LOCAL_DIR.'watermarks/'))
);
}
}
$file_path = $upload_dir.'/'.get_watermark_filename($watermark_files, $new_name);
if (move_uploaded_file($_FILES['watermarkImage']['tmp_name'], $file_path))
{
$pwatermark['file'] = substr($file_path, strlen(PHPWG_ROOT_PATH));
}
else
{
$page['errors'][] = $errors['watermarkImage'] = "$file_path " .l10n('no write access');
}
}
else
{
$page['errors'][] = $errors['watermarkImage'] = sprintf( l10n('Add write access to the "%s" directory'), $upload_dir);
}
}
}
// step 1 - sanitize HTML input
switch ($pwatermark['position'])
{
case 'topleft':
{
$pwatermark['xpos'] = 0;
$pwatermark['ypos'] = 0;
break;
}
case 'topright':
{
$pwatermark['xpos'] = 100;
$pwatermark['ypos'] = 0;
break;
}
case 'middle':
{
$pwatermark['xpos'] = 50;
$pwatermark['ypos'] = 50;
break;
}
case 'bottomleft':
{
$pwatermark['xpos'] = 0;
$pwatermark['ypos'] = 100;
break;
}
case 'bottomright':
{
$pwatermark['xpos'] = 100;
$pwatermark['ypos'] = 100;
break;
}
}
// step 2 - check validity
$v = intval($pwatermark['xpos']);
if ($v < 0 or $v > 100)
{
$errors['watermark']['xpos'] = '[0..100]';
}
$v = intval($pwatermark['ypos']);
if ($v < 0 or $v > 100)
{
$errors['watermark']['ypos'] = '[0..100]';
}
$v = intval($pwatermark['opacity']);
if ($v <= 0 or $v > 100)
{
$errors['watermark']['opacity'] = '(0..100]';
}
// step 3 - save data
if (count($errors) == 0)
{
$watermark = new WatermarkParams();
$watermark->file = $pwatermark['file'];
$watermark->xpos = intval($pwatermark['xpos']);
$watermark->ypos = intval($pwatermark['ypos']);
$watermark->xrepeat = intval($pwatermark['xrepeat']);
$watermark->yrepeat = intval($pwatermark['yrepeat']);
$watermark->opacity = intval($pwatermark['opacity']);
$watermark->min_size = array(intval($pwatermark['minw']),intval($pwatermark['minh']));
$old_watermark = ImageStdParams::get_watermark();
$watermark_changed =
$watermark->file != $old_watermark->file
|| $watermark->xpos != $old_watermark->xpos
|| $watermark->ypos != $old_watermark->ypos
|| $watermark->xrepeat != $old_watermark->xrepeat
|| $watermark->yrepeat != $old_watermark->yrepeat
|| $watermark->opacity != $old_watermark->opacity;
// save the new watermark configuration
ImageStdParams::set_watermark($watermark);
// do we have to regenerate the derivatives (and which types)?
$changed_types = array();
foreach (ImageStdParams::get_defined_type_map() as $type => $params)
{
$old_use_watermark = $params->use_watermark;
ImageStdParams::apply_global($params);
$changed = $params->use_watermark != $old_use_watermark;
if (!$changed and $params->use_watermark)
{
$changed = $watermark_changed;
}
if (!$changed and $params->use_watermark)
{
// if thresholds change and before/after the threshold is lower than the corresponding derivative side -> some derivatives might switch the watermark
$changed |= $watermark->min_size[0]!=$old_watermark->min_size[0] and ($watermark->min_size[0]<$params->max_width() or $old_watermark->min_size[0]<$params->max_width());
$changed |= $watermark->min_size[1]!=$old_watermark->min_size[1] and ($watermark->min_size[1]<$params->max_height() or $old_watermark->min_size[1]<$params->max_height());
}
if ($changed)
{
$params->last_mod_time = time();
$changed_types[] = $type;
}
}
ImageStdParams::save();
if (count($changed_types))
{
clear_derivative_cache($changed_types);
}
$page['infos'][] = l10n('Your configuration settings are saved');
}
else
{
$template->assign('watermark', $pwatermark);
$template->assign('ferrors', $errors);
}
?>
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