antville/helma
antville/helma
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Added experimental res.forward() to forward a request to a local (static) resource.

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The base resource must be mounted as <app>.protectedStatic in the apps.properties file.
Currently no Content-Type is set on the response.
This commit is contained in:
hns 2003-11-14 13:14:07 +00:00
parent ea32bc9da4
commit e486bbb9b0
1 changed files with 45 additions and 2 deletions
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47
src/helma/servlet/AbstractServletClient.java
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@ -283,7 +283,7 @@ public abstract class AbstractServletClient extends HttpServlet {
try {
if (debug) {
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Error in request handler:" + x);
"Server error: " + x);
x.printStackTrace();
} else {
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
@ -299,7 +299,12 @@ public abstract class AbstractServletClient extends HttpServlet {
}
void writeResponse(HttpServletRequest req, HttpServletResponse res,
ResponseTrans hopres) {
ResponseTrans hopres) throws IOException {
if (hopres.getForward() != null) {
sendForward(res, hopres.getForward());
return;
}
if (hopres.getETag() != null) {
res.setHeader("ETag", hopres.getETag());
}
@ -419,6 +424,44 @@ public abstract class AbstractServletClient extends HttpServlet {
res.setHeader("Location", location);
}
/**
* Forward the request to a static file. The file must be reachable via
* the context's protectedStatic resource base.
*/
void sendForward(ServletResponse res, String forward) throws IOException {
ServletContext cx = getServletConfig().getServletContext();
String path = cx.getRealPath(forward);
if (path == null)
throw new IOException("Resource "+forward+" not found");
File file = new File(path);
int length = (int) file.length();
res.setContentLength(length);
InputStream in = cx.getResourceAsStream(forward);
if (in == null)
throw new IOException("Can't read "+path);
OutputStream out = res.getOutputStream();
int bufferSize = 4096;
byte buffer[] = new byte[bufferSize];
int l = bufferSize;
while (length>0) {
if (length < bufferSize)
l = in.read(buffer, 0, length);
else
l=in.read(buffer, 0, bufferSize);
if (l == -1)
break;
length -= l;
out.write(buffer, 0, l);
}
}
FileUpload getUpload(HttpServletRequest request, String encoding) throws Exception {
int contentLength = request.getContentLength();
BufferedInputStream in = new BufferedInputStream(request.getInputStream());