This adds mStatus, mReason and mContent to ResponderBase
and fills those in instead of passing it to member functions.
The added danger here is that now code can accidently try
to access these variables while they didn't already get a
correct value.
Affected members of ResponderBase (that now have less arguments):
decode_llsd_body, decode_raw_body, completedHeaders,
completed -> httpCompleted, result -> httpSuccess,
errorWithContent and error -> httpFailure.
New API:
ResponderBase::setResult
ResponderBase::getStatus()
ResponderBase::getReason()
ResponderBase::getContent()
ResponderBase::getResponseHeaders() (returns AIHTTPReceivedHeaders though, not LLSD)
ResponderBase::dumpResponse()
ResponderWithCompleted::completeResult
ResponderWithResult::failureResult (previously pubErrorWithContent)
ResponderWithResult::successResult (previously pubResult)
Not implemented:
getHTTPMethod() - use getName() instead which returns the class name of the responder.
completedHeaders() is still called as usual, although you can ignore
it (not implement in a derived responder) and call getResponseHeaders()
instead, provided you implement needsHeaders() and have it return true.
However, classes derived from ResponderHeadersOnly do not have
completedHeaders(), so they still must implement completedHeaders(),
and then call getResponseHeaders() or just access mReceivedHeaders
directly, as usual.
This fixes at least one case (crash report 8407), which comes
down to not cleanly informing a responder of failure when the
request url is empty (or so badly formed that it isn't a valid
url). As a result, the statemachine would abort() without
informing the responder - which is bad, sort of.
The previous cases where the responder needed to be informed
of a failure, namely "statemachine timed_out()" and "bad_socket()"
when a socket suddenly becomes bad for unknown reason, have been
replaced with the more general 'aborted()' function, which must
be called before the statemachine calls abort(). Clearly this
has been done for all cases of abort() now, so that if the
llerrs fires again in the future then that would have to be
after the statemachine calls finish(), which is still as "impossible"
as it was - hence the llerrs is still there to make sure.
The reason that this seldom happened on SL, and more often on
opensim, even more often on home-brew test grids, seems plausible:
malformed urls happen more in those cases.
I also took the opportunity to improve the robustness of cases
where the curl error code is checked: it makes no sense to check
what curl gives as error code when an internal error occurred.
* Moved Responder stuff to LLHTTPClient.
* Renamed LLHTTPClient::Responder to LLHTTPClient::ResponderWithResult.
* Deleted LLHTTPClientAdapter and LLHTTPClientInterface.
* Renamed AICurlInterface::TransferInfo to AITransferInfo and moved it
to llhttpclient.h
* Removed 'CURLcode code' argument from completed_headers.
Slightly more robust, adds one boolean to all responders, 99%
of which don't need that though, and an extra call redirection,
but well... We might need it this way when I add the possibility
to abort a transfer.
