\n"; //$NON-NLS-1$ private static final String errorPageEnd = "
"; //$NON-NLS-1$ private static final IFilter allFilters[] = new IFilter[] { new HighlightFilter(), new FramesetFilter(), new InjectionFilter(false), new DynamicXHTMLFilter(), new BreadcrumbsFilter(), new PluginsRootFilter(), new ShowInTocFilter(), new ExtraFilters() }; private static final IFilter errorPageFilters[] = new IFilter[] { new FramesetFilter(), new InjectionFilter(false), new DynamicXHTMLFilter() }; private ServletContext context; private static INotFoundCallout notFoundCallout = null; // For JUnit Testing public EclipseConnector(ServletContext context) { this.context= context; } public void transfer(HttpServletRequest req, HttpServletResponse resp) throws IOException { // URL String pathInfo = req.getPathInfo(); if (pathInfo == null) return; if (pathInfo.startsWith("/")) //$NON-NLS-1$ pathInfo = pathInfo.substring(1); String query = req.getQueryString(); String url = query == null ? pathInfo : (pathInfo + "?" + query); //$NON-NLS-1$ try { //System.out.println("Transfer " + url); //$NON-NLS-1$ // Redirect if the request includes PLUGINS_ROOT and is not a content request int index = url.lastIndexOf(HelpURLConnection.PLUGINS_ROOT); if (index!= -1 && url.indexOf("content/" + HelpURLConnection.PLUGINS_ROOT) == -1) { //$NON-NLS-1$ StringBuffer redirectURL = new StringBuffer(); redirectURL.append(req.getContextPath()); redirectURL.append(req.getServletPath()); redirectURL.append("/"); //$NON-NLS-1$ redirectURL.append(url.substring(index+HelpURLConnection.PLUGINS_ROOT.length())); resp.sendRedirect(redirectURL.toString()); return; } String lowerCaseuRL = url.toLowerCase(Locale.ENGLISH); if (lowerCaseuRL.startsWith("jar:") //$NON-NLS-1$ || lowerCaseuRL.startsWith("platform:") //$NON-NLS-1$ || (lowerCaseuRL.startsWith("file:") && UrlUtil.wasOpenedFromHelpDisplay(url))) { //$NON-NLS-1$ url = pathInfo; // without query // ensure the file is only accessed from a local installation if (BaseHelpSystem.getMode() == BaseHelpSystem.MODE_INFOCENTER || !UrlUtil.isLocalRequest(req)) { return; } } else { // enable activities matching url // HelpBasePlugin.getActivitySupport().enableActivities(url); url = URIUtil.fromString(url).toString(); url = "help:" + url; //$NON-NLS-1$ } URLConnection con = createConnection(req, resp, url); InputStream is; boolean pageNotFound = false; try { is = con.getInputStream(); } catch (IOException ioe) { pageNotFound = true; if (notFoundCallout != null) { notFoundCallout.notFound(url); } boolean isRTopicPath = isRTopicPath(req.getServletPath()); if (requiresErrorPage(lowerCaseuRL) && !isRTopicPath) { String errorPage = null; if (RemoteStatusData.isAnyRemoteHelpUnavailable()) { errorPage = '/'+HelpWebappPlugin.PLUGIN_ID+'/'+ MissingContentManager.MISSING_TOPIC_HREF; } else { errorPage = MissingContentManager.getInstance().getPageNotFoundPage(url, false); } if (errorPage != null && errorPage.length() > 0) { con = createConnection(req, resp, "help:" + errorPage); //$NON-NLS-1$ resp.setContentType("text/html"); //$NON-NLS-1$ try { is = con.getInputStream(); } catch (IOException ioe2) { // Cannot open error page resp.setStatus(HttpServletResponse.SC_NOT_FOUND); return; } } else { // Error page not defined resp.setStatus(HttpServletResponse.SC_NOT_FOUND); return; } } else { // Non HTML file resp.setStatus(HttpServletResponse.SC_NOT_FOUND); return; } } catch (Exception e) { // if it's a wrapped exception, unwrap it Throwable t = e; if (t instanceof UndeclaredThrowableException && t.getCause() != null) { t = t.getCause(); } StringBuffer message = new StringBuffer(); message.append(errorPageBegin); message.append(""); //$NON-NLS-1$ message.append(ServletResources.getString( "contentProducerException", //$NON-NLS-1$ req)); message.append("
"); //$NON-NLS-1$ message.append(""); //$NON-NLS-1$
Writer writer = new StringWriter();
t.printStackTrace(new PrintWriter(writer));
message.append(writer.toString());
message.append(""); //$NON-NLS-1$
message.append(errorPageEnd);
is = new ByteArrayInputStream(message.toString().getBytes("UTF8")); //$NON-NLS-1$
}
OutputStream out = resp.getOutputStream();
IFilter filters[] = pageNotFound ? errorPageFilters : allFilters;
if (isProcessingRequired(resp.getContentType())) {
for (IFilter filter : filters) {
// condition for enabling remote css
if((filter instanceof InjectionFilter) && is instanceof RemoteHelpInputStream){
InjectionFilter ifilter = new InjectionFilter(true);
out=ifilter.filter(req, out);
}
else{
out = filter.filter(req, out);
}
}
}
transferContent(is, out);
try {
out.close();
} catch (IOException ioe) {
// Bug 314324 - do not report an error
}
is.close();
} catch (Exception e) {
String msg = "Error processing help request " + url; //$NON-NLS-1$
HelpWebappPlugin.logError(msg, e);
}
}
private boolean requiresErrorPage(String lowerCaseuRL) {
return lowerCaseuRL.endsWith("htm") //$NON-NLS-1$
|| lowerCaseuRL.endsWith("pdf") //$NON-NLS-1$
|| lowerCaseuRL.endsWith("xhtml") //$NON-NLS-1$
|| lowerCaseuRL.endsWith("shtml") //$NON-NLS-1$
|| lowerCaseuRL.endsWith("html"); //$NON-NLS-1$
}
private boolean isProcessingRequired(String contentType) {
if (contentType.equals("application/xhtml+xml")) { //$NON-NLS-1$
return true;
}
if (!contentType.startsWith("text")) { //$NON-NLS-1$
return false;
}
if (contentType.equals("text/css")) { //$NON-NLS-1$
return false;
}
if (contentType.equals("text/javascript")) { //$NON-NLS-1$
return false;
}
return true;
}
private URLConnection createConnection(HttpServletRequest req,
HttpServletResponse resp, String url) throws Exception {
URLConnection con;
con = openConnection(url, req, resp);
String contentType;
// use the context to get the mime type where possible
String pathInfo = req.getPathInfo();
String mimeType = context.getMimeType(pathInfo);
if (useMimeType(req, mimeType)) {
contentType = mimeType;
} else {
contentType = con.getContentType();
}
resp.setContentType(contentType);
long maxAge = 0;
try {
// getExpiration() throws NullPointerException when URL is
// jar:file:...
long expiration = con.getExpiration();
maxAge = (expiration - System.currentTimeMillis()) / 1000;
if (maxAge < 0)
maxAge = 0;
} catch (Exception e) {
}
resp.setHeader("Cache-Control", "max-age=" + maxAge); //$NON-NLS-1$ //$NON-NLS-2$
return con;
}
private boolean useMimeType(HttpServletRequest req, String mimeType) {
if ( mimeType == null ) {
return false;
}
if (mimeType.equals("application/xhtml+xml") && !UrlUtil.isMozilla(req)) { //$NON-NLS-1$
return false;
}
return true;
}
/**
* Write the body to the response
*/
private void transferContent(InputStream inputStream, OutputStream out)
throws IOException {
// Prepare the input stream for reading
BufferedInputStream dataStream = new BufferedInputStream(
inputStream);
try {
// Create a fixed sized buffer for reading.
// We could create one with the size of availabe data...
byte[] buffer = new byte[4096];
int len = 0;
while (true) {
len = dataStream.read(buffer); // Read file into the byte array
if (len == -1)
break;
out.write(buffer, 0, len);
}
} catch (Exception e) {
}
try{
dataStream.close();
}catch(Exception e){}
}
/**
* Gets content from the named url (this could be and eclipse defined url)
*/
private URLConnection openConnection(String url,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
URLConnection con = null;
if (BaseHelpSystem.getMode() == BaseHelpSystem.MODE_INFOCENTER) {
// it is an infocentre, add client locale to url
String locale = UrlUtil.getLocale(request, response);
if (url.indexOf('?') >= 0) {
url = url + "&lang=" + locale; //$NON-NLS-1$
} else {
url = url + "?lang=" + locale; //$NON-NLS-1$
}
}
URL helpURL;
if (url.startsWith("help:")) { //$NON-NLS-1$
helpURL = new URL("help", //$NON-NLS-1$
null, -1, url.substring("help:".length()), //$NON-NLS-1$
HelpURLStreamHandler.getDefault());
} else {
if (url.startsWith("jar:")) { //$NON-NLS-1$
// fix for bug 83929
int excl = url.indexOf("!/"); //$NON-NLS-1$
String jar = url.substring(0, excl);
String path = url.length() > excl + 2 ? url.substring(excl + 2)
: ""; //$NON-NLS-1$
url = jar.replaceAll("!", "%21") + "!/" //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+ path.replaceAll("!", "%21"); //$NON-NLS-1$ //$NON-NLS-2$
}
helpURL = new URL(url);
}
String protocol = helpURL.getProtocol();
if (!("help".equals(protocol) //$NON-NLS-1$
|| "file".equals(protocol) //$NON-NLS-1$
|| "platform".equals(protocol) //$NON-NLS-1$
|| "jar".equals(protocol))) { //$NON-NLS-1$
throw new IOException();
}
con = helpURL.openConnection();
con.setAllowUserInteraction(false);
con.setDoInput(true);
con.connect();
return con;
}
public static void setNotFoundCallout(INotFoundCallout callout) {
notFoundCallout = callout;
}
public static boolean isRTopicPath(String servletPath)
{
boolean isRTopicPath=false;
if(servletPath.equals("/rtopic")) //$NON-NLS-1$
isRTopicPath = true;
return isRTopicPath;
}
}