public override void Fetch(HttpRequestWrapper request, HttpResponseWrapper response)
{
if (request.getHeaders("If-Modified-Since") != null)
{
if (!request.isConcat)
{
response.setStatus((int)HttpStatusCode.NotModified);
}
return;
}
String host = request.getHeaders("Host");
if (!lockedDomainService.isSafeForOpenProxy(host))
{
// Force embedded images and the like to their own domain to avoid XSS
// in gadget domains.
return;
}
sRequest rcr = buildHttpRequest(request);
sResponse results = fetcher.fetch(rcr);
if (contentRewriterRegistry != null)
{
results = contentRewriterRegistry.rewriteHttpResponse(rcr, results);
}
if (!request.isConcat)
{
SetResponseHeaders(request, response.getResponse(), results);
for (int i = 0; i < results.getHeaders().Count; i++)
{
String name = results.getHeaders().GetKey(i);
if (!DISALLOWED_RESPONSE_HEADERS.Contains(name.ToLower()))
{
foreach (String value in results.getHeaders().GetValues(i))
{
response.AddHeader(name, value);
}
}
}
}
if (request.getParameter("rewriteMime") != null)
{
response.setContentType(request.getParameter("rewriteMime"));
}
if (results.getHttpStatusCode() != (int)HttpStatusCode.OK)
{
response.setStatus((int)results.getHttpStatusCode());
}
else
{
response.setStatus((int)HttpStatusCode.OK);
}
response.Write(results.responseBytes);
}
private static void addHeaders(JsonObject headers, sResponse response, String headerName)
{
string[] values = response.getHeaders(headerName);
if (values != null)
{
headers.Put(headerName.ToLower(), new JsonArray(values));
}
}
/**
* Parse OAuth WWW-Authenticate header and either add them to an existing
* message or create a new message.
*
* @param msg
* @param resp
* @return the updated message.
*/
private static OAuthMessage parseAuthHeader(OAuthMessage msg, sResponse resp)
{
if (msg == null)
{
msg = new OAuthMessage(null, null, null);
}
foreach (String auth in resp.getHeaders("WWW-Authenticate"))
{
msg.addParameters(OAuthMessage.decodeAuthorization(auth));
}
return(msg);
}