/**
* Returns paths constructed by rewriting pathInfo using rules from the hosted site's mappings.
* Paths are ordered from most to least specific match.
*
* @param site The hosted site.
* @param pathInfo Path to be rewritten.
* @param queryString
* @return The rewritten path. May be either:
* <ul>
* <li>A path to a file in the Orion workspace, eg. <code>/ProjectA/foo/bar.txt</code>
* <li>An absolute URL pointing to another site, eg. <code>http://foo.com/bar.txt</code>
* </ul>
*
* @return The rewritten paths.
* @throws URISyntaxException
*/
private URI[] getMapped(IHostedSite site, IPath pathInfo, String queryString)
throws URISyntaxException {
final Map<String, List<String>> map = site.getMappings();
final IPath originalPath = pathInfo;
IPath path = originalPath.removeTrailingSeparator();
List<URI> uris = new ArrayList<URI>();
String rest = null;
final int count = path.segmentCount();
for (int i = 0; i <= count; i++) {
List<String> base = map.get(path.toString());
if (base != null) {
rest = originalPath.removeFirstSegments(count - i).toString();
for (int j = 0; j < base.size(); j++) {
URI uri =
rest.equals("") ? new URI(base.get(j)) : URIUtil.append(new URI(base.get(j)), rest);
uris.add(
new URI(
uri.getScheme(),
uri.getUserInfo(),
uri.getHost(),
uri.getPort(),
uri.getPath(),
queryString,
uri.getFragment()));
}
}
path = path.removeLastSegments(1);
}
if (uris.size() == 0)
// No mapping for /
return null;
else return uris.toArray(new URI[uris.size()]);
}
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
traceRequest(req);
String pathInfoString = req.getPathInfo();
String queryString = getQueryString(req);
IPath pathInfo =
new Path(
null /*don't parse host:port as device*/,
pathInfoString == null ? "" : pathInfoString); // $NON-NLS-1$
if (pathInfo.segmentCount() > 0) {
String hostedHost = pathInfo.segment(0);
IHostedSite site = HostingActivator.getDefault().getHostingService().get(hostedHost);
if (site != null) {
IPath path = pathInfo.removeFirstSegments(1);
IPath contextPath = new Path(req.getContextPath());
IPath contextlessPath = path.makeRelativeTo(contextPath).makeAbsolute();
URI[] mappedPaths;
try {
mappedPaths = getMapped(site, contextlessPath, queryString);
} catch (URISyntaxException e) {
handleException(
resp,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_BAD_REQUEST,
"Could not create target URI ",
e));
return;
}
if (mappedPaths != null) {
serve(req, resp, site, mappedPaths);
} else {
handleException(
resp,
new ServerStatus(
IStatus.ERROR,
HttpServletResponse.SC_NOT_FOUND,
NLS.bind("No mappings matched {0}", path),
null));
}
} else {
String msg = NLS.bind("Hosted site {0} is stopped", hostedHost);
handleException(
resp, new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_NOT_FOUND, msg, null));
}
} else {
super.doGet(req, resp);
}
}
// temp code for grabbing files from filesystem
protected IFileStore tempGetFileStore(IPath path) {
// first check if we have an alias registered
if (path.segmentCount() > 0) {
URI alias = aliasRegistry.lookupAlias(path.segment(0));
if (alias != null)
try {
return EFS.getStore(alias).getFileStore(path.removeFirstSegments(1));
} catch (CoreException e) {
LogHelper.log(
new Status(
IStatus.WARNING,
HostingActivator.PI_SERVER_HOSTING,
1,
"An error occured when getting file store for path '"
+ path
+ "' and alias '"
+ alias
+ '\'',
e)); //$NON-NLS-1$ //$NON-NLS-2$
// fallback is to try the same path relatively to the root
}
}
// assume it is relative to the root
try {
return EFS.getStore(rootStoreURI).getFileStore(path);
} catch (CoreException e) {
LogHelper.log(
new Status(
IStatus.WARNING,
HostingActivator.PI_SERVER_HOSTING,
1,
"An error occured when getting file store for path '"
+ path
+ "' and root '"
+ rootStoreURI
+ '\'',
e)); //$NON-NLS-1$ //$NON-NLS-2$
// fallback and return null
}
return null;
}
