/**
* Update the permanent redirection list.
*
* @param the original request
* @param the new location
*/
private static void update_perm_redir_list(RoRequest req, URI new_loc) {
HTTPConnection con = req.getConnection();
URI cur_loc = null;
try {
cur_loc =
new URI(
new URI(con.getProtocol(), con.getHost(), con.getPort(), null), req.getRequestURI());
} catch (ParseException pe) {
if (LOG.isTraceEnabled()) {
LOG.trace("An exception occurred: " + pe.getMessage());
}
}
if (cur_loc != null && !cur_loc.equals(new_loc)) {
Hashtable perm_redir_list = Util.getList(perm_redir_cntxt_list, con.getContext());
perm_redir_list.put(cur_loc, new_loc);
}
}
/**
* The Location header field must be an absolute URI, but too many broken servers use relative
* URIs. So, we always resolve relative to the full request URI.
*
* @param loc the Location header field
* @param req the Request to resolve relative URI's relative to
* @return an absolute URI corresponding to the Location header field
* @exception ProtocolException if the Location header field is completely unparseable
*/
private URI resLocHdr(String loc, RoRequest req) throws ProtocolException {
try {
URI base =
new URI(
req.getConnection().getProtocol(),
req.getConnection().getHost(),
req.getConnection().getPort(),
null);
base = new URI(base, req.getRequestURI());
URI res = new URI(base, loc);
if (res.getHost() == null)
throw new ProtocolException(
"Malformed URL in Location header: `" + loc + "' - missing host field");
return res;
} catch (ParseException pe) {
throw new ProtocolException(
"Malformed URL in Location header: `" + loc + "' - exception was: " + pe.getMessage());
}
}