/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.workplace.commons;
import org.opencms.db.CmsDbSqlException;
import org.opencms.file.CmsFile;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.main.CmsException;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsPermissionSet;
import org.opencms.workplace.CmsDialog;
import org.opencms.workplace.CmsWorkplaceSettings;
import java.util.Iterator;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import org.apache.commons.fileupload.FileItem;
/**
* The replace resource dialog handles the replacement of a single VFS file.<p>
*
* The following files use this class:
* <ul>
* <li>/commons/replace.jsp
* </ul>
* <p>
*
* @since 6.0.0
*/
public class CmsReplace extends CmsDialog {
/** The dialog type.<p> */
public static final String DIALOG_TYPE = "replace";
/** Request parameter name for the upload file name.<p> */
public static final String PARAM_UPLOADFILE = "uploadfile";
/**
* Public constructor with JSP action element.<p>
*
* @param jsp an initialized JSP action element
*/
public CmsReplace(CmsJspActionElement jsp) {
super(jsp);
}
/**
* Public constructor with JSP variables.<p>
*
* @param context the JSP page context
* @param req the JSP request
* @param res the JSP response
*/
public CmsReplace(PageContext context, HttpServletRequest req, HttpServletResponse res) {
this(new CmsJspActionElement(context, req, res));
}
/**
* Uploads the specified file and replaces the VFS file.<p>
*
* @throws JspException if inclusion of error dialog fails
*/
public void actionReplace() throws JspException {
try {
// get the file item from the multipart request
Iterator i = getMultiPartFileItems().iterator();
FileItem fi = null;
while (i.hasNext()) {
fi = (FileItem)i.next();
if (fi.getName() != null) {
// found the file object, leave iteration
break;
}
}
if (fi != null) {
// get file object information
long size = fi.getSize();
long maxFileSizeBytes = OpenCms.getWorkplaceManager().getFileBytesMaxUploadSize(getCms());
// check file size
if ((maxFileSizeBytes > 0) && (size > maxFileSizeBytes)) {
// file size is larger than maximum allowed file size, throw an error
throw new CmsException(Messages.get().container(
Messages.ERR_FILE_SIZE_TOO_LARGE_1,
new Long((maxFileSizeBytes / 1024))));
}
byte[] content = fi.get();
fi.delete();
// determine the resource type id from the resource to replace
CmsResource res = getCms().readResource(getParamResource(), CmsResourceFilter.IGNORE_EXPIRATION);
CmsFile file = getCms().readFile(res);
byte[] contents = file.getContents();
int resTypeId = res.getTypeId();
// check the lock state and replace resource
checkLock(getParamResource());
try {
getCms().replaceResource(getParamResource(), resTypeId, content, null);
} catch (CmsDbSqlException sqlExc) {
// SQL error, probably the file is too large for the database settings, restore old content
file.setContents(contents);
getCms().writeFile(file);
throw sqlExc;
}
// close dialog
actionCloseDialog();
} else {
throw new CmsException(Messages.get().container(Messages.ERR_UPLOAD_FILE_NOT_FOUND_0));
}
} catch (Throwable e) {
// error replacing file, show error dialog
includeErrorpage(this, e);
}
}
/**
* @see org.opencms.workplace.CmsWorkplace#initWorkplaceRequestValues(org.opencms.workplace.CmsWorkplaceSettings, javax.servlet.http.HttpServletRequest)
*/
protected void initWorkplaceRequestValues(CmsWorkplaceSettings settings, HttpServletRequest request) {
// fill the parameter values in the get/set methods
fillParamValues(request);
// check the required permissions to replace the resource
if (!checkResourcePermissions(CmsPermissionSet.ACCESS_WRITE, false)) {
// no write permissions for the resource, set cancel action to close dialog
setParamAction(DIALOG_CANCEL);
}
// set the dialog type
setParamDialogtype(DIALOG_TYPE);
// set the action for the JSP switch
if (DIALOG_OK.equals(getParamAction())) {
// ok button pressed, replace file
setAction(ACTION_OK);
} else if (DIALOG_CANCEL.equals(getParamAction())) {
// cancel button pressed
setAction(ACTION_CANCEL);
} else {
// first call of dialog
setAction(ACTION_DEFAULT);
// build title for replace resource dialog
setParamTitle(key(Messages.GUI_REPLACE_FILE_1, new Object[] {CmsResource.getName(getParamResource())}));
}
}
}