/**
* Computes the name of the resource to be created by a POST operation. Returns an empty string if
* the name was not specified.
*/
private String computeName(HttpServletRequest request, JSONObject requestObject) {
// get the slug first
String name = request.getHeader(ProtocolConstants.HEADER_SLUG);
// If the requestObject has a name then it must be used due to UTF-8 issues with names Bug
// 376671
if (requestObject.has("Name")) {
try {
name = requestObject.getString("Name");
} catch (JSONException e) {
}
}
// next comes the source location for a copy/move
if (name == null || name.length() == 0) {
String location = requestObject.optString(ProtocolConstants.KEY_LOCATION);
int lastSlash = location.lastIndexOf('/');
if (lastSlash >= 0) name = location.substring(lastSlash + 1);
}
// finally use the name attribute from the request body
if (name == null || name.length() == 0)
name = requestObject.optString(ProtocolConstants.KEY_NAME);
return name;
}
/**
* Performs the actual modification corresponding to a POST request. All preconditions are assumed
* to be satisfied.
*
* @return <code>true</code> if the operation was successful, and <code>false</code> otherwise.
*/
private boolean performPost(
HttpServletRequest request,
HttpServletResponse response,
JSONObject requestObject,
IFileStore toCreate,
int options)
throws CoreException, IOException, ServletException {
boolean isCopy = (options & CREATE_COPY) != 0;
boolean isMove = (options & CREATE_MOVE) != 0;
if (isCopy || isMove)
return performCopyMove(request, response, requestObject, toCreate, isCopy, options);
if (requestObject.optBoolean(ProtocolConstants.KEY_DIRECTORY)) toCreate.mkdir(EFS.NONE, null);
else toCreate.openOutputStream(EFS.NONE, null).close();
return true;
}
private void encodeChildren(IFileStore dir, URI location, JSONObject result, int depth)
throws CoreException {
if (depth <= 0) return;
JSONArray children = new JSONArray();
IFileStore[] childStores = dir.childStores(EFS.NONE, null);
for (IFileStore childStore : childStores) {
IFileInfo childInfo = childStore.fetchInfo();
String name = childInfo.getName();
if (childInfo.isDirectory()) name += "/"; // $NON-NLS-1$
URI childLocation = URIUtil.append(location, name);
JSONObject childResult = ServletFileStoreHandler.toJSON(childStore, childInfo, childLocation);
if (childInfo.isDirectory())
encodeChildren(childStore, childLocation, childResult, depth - 1);
children.put(childResult);
}
try {
result.put(ProtocolConstants.KEY_CHILDREN, children);
} catch (JSONException e) {
// cannot happen
throw new RuntimeException(e);
}
}
/**
* Perform a copy or move as specified by the request.
*
* @return <code>true</code> if the operation was successful, and <code>false</code> otherwise.
*/
private boolean performCopyMove(
HttpServletRequest request,
HttpServletResponse response,
JSONObject requestObject,
IFileStore toCreate,
boolean isCopy,
int options)
throws ServletException, CoreException {
String locationString = requestObject.optString(ProtocolConstants.KEY_LOCATION, null);
if (locationString == null) {
statusHandler.handleRequest(
request,
response,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_BAD_REQUEST,
"Copy or move request must specify source location",
null));
return false;
}
try {
IFileStore source = resolveSourceLocation(request, locationString);
if (source == null) {
statusHandler.handleRequest(
request,
response,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_NOT_FOUND,
NLS.bind("Source does not exist: ", locationString),
null));
return false;
}
boolean allowOverwrite = (options & CREATE_NO_OVERWRITE) == 0;
int efsOptions = allowOverwrite ? EFS.OVERWRITE : EFS.NONE;
try {
if (isCopy) source.copy(toCreate, efsOptions, null);
else source.move(toCreate, efsOptions, null);
} catch (CoreException e) {
if (!source.fetchInfo().exists()) {
statusHandler.handleRequest(
request,
response,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_NOT_FOUND,
NLS.bind("Source does not exist: ", locationString),
e));
return false;
}
if (e.getStatus().getCode() == EFS.ERROR_EXISTS) {
statusHandler.handleRequest(
request,
response,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_PRECONDITION_FAILED,
"A file or folder with the same name already exists at this location",
null));
return false;
}
// just rethrow if we can't do something more specific
throw e;
}
} catch (URISyntaxException e) {
statusHandler.handleRequest(
request,
response,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_BAD_REQUEST,
NLS.bind("Bad source location in request: ", locationString),
e));
return false;
}
return true;
}