Viewing file:  ajax_image_save.php (5.44 KB) -rwxr-xr-x
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<?php
/**
* image save function
* @author Logan Cai (cailongqun [at] yahoo [dot] com [dot] cn)
* @link www.phpletter.com
* @since 22/May/2007
*
*/
require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . "inc" . DIRECTORY_SEPARATOR . "config.php");
$error = "";
$info = "";
if(CONFIG_SYS_VIEW_ONLY || !CONFIG_OPTIONS_EDITABLE)
{
$error = SYS_DISABLED;
}
elseif(empty($_POST['path']))
{
$error = IMG_SAVE_EMPTY_PATH;
}elseif(!file_exists($_POST['path']))
{
$error = IMG_SAVE_NOT_EXISTS;
}elseif(!isUnderRoot($_POST['path']))
{
$error = IMG_SAVE_PATH_DISALLOWED;
}elseif(($sessionDir = $session->getSessionDir()) == '')
{
$error = SESSION_PERSONAL_DIR_NOT_FOUND;
}
else
{
require_once(CLASS_HISTORY);
$history = new History($_POST['path'], $session);
if(!empty($_POST['mode']))
{
//get the original image which is the lastest session image if any when the system is in demo
$lastestSessionImageInfo = $history->getLastestRestorable();
if(sizeof($lastestSessionImageInfo) && CONFIG_SYS_DEMO_ENABLE)
{
$originalSessionImageInfo = $history->getOriginalImage();
if(sizeof($originalSessionImageInfo))
{
$originalImage = $sessionDir . $originalSessionImageInfo['info']['name'];
}
}
if(empty($originalImage))
{
$originalImage = $_POST['path'];
}
include_once(CLASS_IMAGE);
$image = new Image();
if($image->loadImage($originalImage))
{
switch($_POST['mode'])
{
case "resize":
if(!$image->resize($_POST['width'], $_POST['height'], (!empty($_POST['constraint'])?true:false)))
{
$error = IMG_SAVE_RESIZE_FAILED;
}
break;
case "crop":
if(!$image->crop($_POST['x'], $_POST['y'], $_POST['width'], $_POST['height']))
{
$error = IMG_SAVE_CROP_FAILED;
}
break;
case "flip":
if(!$image->flip($_POST['flip_angle']))
{
$error = IMG_SAVE_FLIP_FAILED;
}
break;
case "rotate":
if(!$image->rotate(intval($_POST['angle'])))
{
$error = IMG_SAVE_ROTATE_FAILED;
}
break;
default:
$error = IMG_SAVE_UNKNOWN_MODE;
}
if(empty($error))
{
$sessionNewPath = $sessionDir . uniqid(md5(time())) . "." . getFileExt($_POST['path']);
if(!@copy($originalImage, $sessionNewPath))
{//keep a copy under the session folder
$error = IMG_SAVE_BACKUP_FAILED;
}else
{
$isSaveAsRequest = (!empty($_POST['new_name']) && !empty($_POST['save_to'])?true:false);
//save the modified image
$sessionImageInfo = array('name'=>basename($sessionNewPath), 'restorable'=>1);
$history->add($sessionImageInfo);
if(CONFIG_SYS_DEMO_ENABLE)
{//demo only
if(isset($originalSessionImageInfo) && sizeof($originalSessionImageInfo))
{
$imagePath = $sessionDir . $originalSessionImageInfo['info']['name'];
}else
{
$imagePath = $sessionDir . uniqid(md5(time())) . "." . getFileExt($_POST['path']);
}
}else
{
if($isSaveAsRequest)
{//save as request
//check save to folder if exists
$imagePath = addTrailingSlash(backslashToSlash($_POST['save_to'])) . $_POST['new_name'] . "." . getFileExt($_POST['path']);
if(!file_exists($_POST['save_to']) || !is_dir($_POST['save_to']))
{
$error = IMG_SAVE_AS_FOLDER_NOT_FOUND;
}elseif(file_exists($imagePath))
{
$error = IMG_SAVE_AS_NEW_IMAGE_EXISTS;
}elseif(!preg_match("/^[a-zA-Z0-9_\- ]+$/", $_POST['new_name']))
{
$error = IMG_SAVE_AS_ERR_NAME_INVALID;
}
}else
{//save request
$imagePath = $originalImage;
}
}
if($image->saveImage($imagePath))
{
if(CONFIG_SYS_DEMO_ENABLE)
{
if(!isset($originalSessionImageInfo) || !sizeof($originalSessionImageInfo))
{//keep this original image information on session for future reference if demo only
$originalSessionImageInfo = array('name'=>basename($imagePath), 'restorable'=>0, 'is_original'=>1);
$history->add($originalSessionImageInfo);
}
}
$imageInfo = $image->getFinalImageInfo();
}else
{
$error = IMG_SAVE_FAILED;
}
if(isset($imageInfo))
{
$info .= ",width:" . $imageInfo['width'] . "";
$info .= ",height:" . $imageInfo['height'] . "";
$info .= ",size:'" . transformFileSize($imageInfo['size']) . "'";
if($isSaveAsRequest)
{
$info .= ",save_as:'1'";
}else
{
$info .= ",save_as:'0'";
}
$info .= ",folder_path:'" . dirname($imagePath) . "'";
$info .= ",path:'" . backslashToSlash($imagePath) . "'";
}
}
}
}else
{
$error = IMG_SAVE_IMG_OPEN_FAILED;
}
}else
{
$error = IMG_SAVE_UNKNOWN_MODE;
}
}
echo "{";
echo "error:'" . $error . "'";
if(isset($image) && is_object($image))
{
$image->DestroyImages();
}
echo $info;
echo ",history:" . (isset($history) && is_object($history)?($history->getNumRestorable()):0) . "";
echo "}";
?>
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