/**
* OAuth authenticated fetch.
*/
public sResponse fetch(sRequest request)
{
realRequest = request;
clientState = new OAuthClientState(
fetcherConfig.getStateCrypter(),
request.getOAuthArguments().getOrigClientState());
responseParams = new OAuthResponseParams(request.getSecurityToken(), request, fetcherConfig.getStateCrypter());
try
{
return(fetchNoThrow());
}
catch (Exception e)
{
// We log here to record the request/response pairs that created the failure.
responseParams.logDetailedWarning("OAuth fetch unexpected fatal error", e);
throw e;
}
}
public override void Fetch(HttpRequestWrapper request, HttpResponseWrapper response)
{
sRequest rcr = buildHttpRequest(request);
// Serialize the response
sResponse results = requestPipeline.execute(rcr);
// Rewrite the response
if (contentRewriterRegistry != null)
{
results = contentRewriterRegistry.rewriteHttpResponse(rcr, results);
}
// Serialize the response
String output = convertResponseToJson(rcr.getSecurityToken(), request, results);
// Find and set the refresh interval
SetResponseHeaders(request, response.getResponse(), results);
response.setStatus((int)HttpStatusCode.OK);
response.setContentType("application/json");
response.getResponse().ContentEncoding = Encoding.UTF8;
response.Write(Encoding.UTF8.GetBytes(UNPARSEABLE_CRUFT + output));
}
/**
* Fetch data and build a response to return to the client. We try to always return something
* reasonable to the calling app no matter what kind of madness happens along the way. If an
* unchecked exception occurs, well, then the client is out of luck.
*/
private sResponse fetchNoThrow()
{
HttpResponseBuilder response = null;
try
{
accessorInfo = fetcherConfig.getTokenStore().getOAuthAccessor(
realRequest.getSecurityToken(), realRequest.getOAuthArguments(), clientState,
responseParams);
response = fetchWithRetry();
}
catch (OAuthResponseParams.OAuthRequestException e)
{
// No data for us.
responseParams.logDetailedWarning("OAuth fetch fatal error", e);
responseParams.setSendTraceToClient(true);
if (response == null)
{
response = new HttpResponseBuilder()
.setHttpStatusCode(sResponse.SC_FORBIDDEN);
responseParams.addToResponse(response);
return(response.create());
}
}
// OK, got some data back, annotate it as necessary.
if (response.getHttpStatusCode() >= 400)
{
responseParams.logDetailedWarning("OAuth fetch fatal error");
responseParams.setSendTraceToClient(true);
}
else if (responseParams.getAznUrl() != null && responseParams.sawErrorResponse())
{
responseParams.logDetailedWarning("OAuth fetch error, reprompting for user approval");
responseParams.setSendTraceToClient(true);
}
responseParams.addToResponse(response);
return(response.create());
}
