Large changes to the LLCurl::Responder API, as well as pulling in some changes to common libraries from the server codebase:

* Additional error checking in http handlers.
* Uniform log spam for http errors.
* Switch to using constants for http heads and status codes.
* Fixed bugs in incorrectly checking if parsing LLSD xml resulted in an error.
* Reduced spam regarding LLSD parsing errors in the default completedRaw http handler.  It should not longer be necessary to short-circuit completedRaw to avoid spam.
* Ported over a few bug fixes from the server code.
* Switch mode http status codes to use S32 instead of U32.
* Ported LLSD::asStringRef from server code; avoids copying strings all over the place.
* Ported server change to LLSD::asBinary; this always returns a reference now instead of copying the entire binary blob.
* Ported server pretty notation format (and pretty binary format) to llsd serialization.

* The new LLCurl::Responder API no longer has two error handlers to choose from.  Overriding the following methods have been deprecated:
** error - use httpFailure
** errorWithContent - use httpFailure
** result - use httpSuccess
** completed - use httpCompleted
** completedHeader - no longer necessary; call getResponseHeaders() from a completion method to obtain these headers.

* In order to 'catch' a completed http request, override one of these methods:
** httpSuccess - Called for any 2xx status code.
** httpFailure - Called for any non-2xx status code.
** httpComplete - Called for all status codes.  Default implementation is to call either httpSuccess or httpFailure.
* It is recommended to keep these methods protected/private in order to avoid triggering of these methods without using a 'push' method (see below).

* Uniform error handling should followed whenever possible by calling a variant of this during httpFailure:
** llwarns << dumpResponse() << llendl;
* Be sure to include LOG_CLASS(your_class_name) in your class in order for the log entry to give more context.

* In order to 'push' a result into the responder, you should no longer call error, errorWithContent, result, or completed.
* Nor should you directly call httpSuccess/Failure/Completed (unless passing a message up to a parent class).
* Instead, you can set the internal content of a responder and trigger a corresponding method using the following methods:
** successResult - Sets results and calls httpSuccess
** failureResult - Sets results and calls httpFailure
** completedResult - Sets results and calls httpCompleted

* To obtain information about a the response from a reponder method, use the following getters:
** getStatus - HTTP status code
** getReason - Reason string
** getContent - Content (Parsed body LLSD)
** getResponseHeaders - Response Headers (LLSD map)
** getHTTPMethod - HTTP method of the request
** getURL - URL of the request

* It is still possible to override completeRaw if you want to manipulate data directly out of LLPumpIO.

* See indra/llmessage/llcurl.h for more information.

1 files changed, 6 insertions, 9 deletions

diff --git a/indra/llcommon/llsdserialize_xml.cpp b/indra/llcommon/llsdserialize_xml.cpp
index cef743a7be..3ef7a7e4c1 100644
--- a/indra/llcommon/llsdserialize_xml.cpp
+++ b/indra/llcommon/llsdserialize_xml.cpp
@@ -168,8 +168,8 @@ S32 LLSDXMLFormatter::format_impl(const LLSD& data, std::ostream& ostr, U32 opti
 		break;
 
 	case LLSD::TypeString:
-		if(data.asString().empty()) ostr << pre << "<string />" << post;
-		else ostr << pre << "<string>" << escapeString(data.asString()) <<"</string>" << post;
+		if(data.asStringRef().empty()) ostr << pre << "<string />" << post;
+		else ostr << pre << "<string>" << escapeString(data.asStringRef()) <<"</string>" << post;
 		break;
 
 	case LLSD::TypeDate:
@@ -182,7 +182,7 @@ S32 LLSDXMLFormatter::format_impl(const LLSD& data, std::ostream& ostr, U32 opti
 
 	case LLSD::TypeBinary:
 	{
-		LLSD::Binary buffer = data.asBinary();
+		const LLSD::Binary& buffer = data.asBinary();
 		if(buffer.empty())
 		{
 			ostr << pre << "<binary />" << post;
@@ -375,13 +375,10 @@ S32 LLSDXMLParser::Impl::parse(std::istream& input, LLSD& data)
 		{
 			break;
 		}
+		count = get_till_eol(input, (char *)buffer, BUFFER_SIZE);
+		if (!count)
 		{
-		
-			count = get_till_eol(input, (char *)buffer, BUFFER_SIZE);
-			if (!count)
-			{
-				break;
-			}
+			break;
 		}
 		status = XML_ParseBuffer(mParser, count, false);