Viewing file:  transformation_wrapper.php (3.87 KB) -rw-r--r--
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Wrapper script for rendering transformations
*
* @package PhpMyAdmin
*/
/**
*
*/
define('IS_TRANSFORMATION_WRAPPER', true);
/**
* Gets a core script and starts output buffering work
*/
require_once './libraries/common.inc.php';
require_once './libraries/transformations.lib.php'; // Transformations
$cfgRelation = PMA_getRelationsParam();
/**
* Ensures db and table are valid, else moves to the "parent" script
*/
require_once './libraries/db_table_exists.lib.php';
/**
* Sets globals from $_REQUEST
*/
$request_params = array(
'cn',
'ct',
'sql_query',
'transform_key',
'where_clause'
);
foreach ($request_params as $one_request_param) {
if (isset($_REQUEST[$one_request_param])) {
$GLOBALS[$one_request_param] = $_REQUEST[$one_request_param];
}
}
/**
* Get the list of the fields of the current table
*/
$GLOBALS['dbi']->selectDb($db);
if (isset($where_clause)) {
$result = $GLOBALS['dbi']->query(
'SELECT * FROM ' . PMA_Util::backquote($table)
. ' WHERE ' . $where_clause . ';',
null,
PMA_DatabaseInterface::QUERY_STORE
);
$row = $GLOBALS['dbi']->fetchAssoc($result);
} else {
$result = $GLOBALS['dbi']->query(
'SELECT * FROM ' . PMA_Util::backquote($table) . ' LIMIT 1;',
null,
PMA_DatabaseInterface::QUERY_STORE
);
$row = $GLOBALS['dbi']->fetchAssoc($result);
}
// No row returned
if (! $row) {
exit;
} // end if (no record returned)
$default_ct = 'application/octet-stream';
if ($cfgRelation['commwork'] && $cfgRelation['mimework']) {
$mime_map = PMA_getMime($db, $table);
$mime_options = PMA_Transformation_getOptions(
isset($mime_map[$transform_key]['transformation_options'])
? $mime_map[$transform_key]['transformation_options'] : ''
);
foreach ($mime_options as $key => $option) {
if (substr($option, 0, 10) == '; charset=') {
$mime_options['charset'] = $option;
}
}
}
// Only output the http headers
$response = PMA_Response::getInstance();
$response->getHeader()->sendHttpHeaders();
// [MIME]
if (isset($ct) && ! empty($ct)) {
$mime_type = $ct;
} else {
$mime_type = (isset($mime_map[$transform_key]['mimetype'])
? str_replace('_', '/', $mime_map[$transform_key]['mimetype'])
: $default_ct)
. (isset($mime_options['charset']) ? $mime_options['charset'] : '');
}
PMA_downloadHeader($cn, $mime_type);
if (! isset($_REQUEST['resize'])) {
echo $row[$transform_key];
} else {
// if image_*__inline.inc.php finds that we can resize,
// it sets the resize parameter to jpeg or png
$srcImage = imagecreatefromstring($row[$transform_key]);
$srcWidth = ImageSX($srcImage);
$srcHeight = ImageSY($srcImage);
// Check to see if the width > height or if width < height
// if so adjust accordingly to make sure the image
// stays smaller than the new width and new height
$ratioWidth = $srcWidth/$_REQUEST['newWidth'];
$ratioHeight = $srcHeight/$_REQUEST['newHeight'];
if ($ratioWidth < $ratioHeight) {
$destWidth = $srcWidth/$ratioHeight;
$destHeight = $_REQUEST['newHeight'];
} else {
$destWidth = $_REQUEST['newWidth'];
$destHeight = $srcHeight/$ratioWidth;
}
if ($_REQUEST['resize']) {
$destImage = ImageCreateTrueColor($destWidth, $destHeight);
}
// ImageCopyResized($destImage, $srcImage, 0, 0, 0, 0,
// $destWidth, $destHeight, $srcWidth, $srcHeight);
// better quality but slower:
ImageCopyResampled(
$destImage, $srcImage, 0, 0, 0, 0, $destWidth,
$destHeight, $srcWidth, $srcHeight
);
if ($_REQUEST['resize'] == 'jpeg') {
ImageJPEG($destImage, null, 75);
}
if ($_REQUEST['resize'] == 'png') {
ImagePNG($destImage);
}
ImageDestroy($srcImage);
ImageDestroy($destImage);
}
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