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, 22 insertions, 4 deletions

diff --git a/indra/llmessage/llhttpclientadapter.cpp b/indra/llmessage/llhttpclientadapter.cpp
index f5d7a9abb6..aaa31e36fc 100644
--- a/indra/llmessage/llhttpclientadapter.cpp
+++ b/indra/llmessage/llhttpclientadapter.cpp
@@ -35,16 +35,19 @@ void LLHTTPClientAdapter::get(const std::string& url, LLCurl::ResponderPtr respo
 {
 	LLSD empty_pragma_header;
 	// Pragma is required to stop curl adding "no-cache"
-	// Space is required to stop llurlrequest from turnning off proxying
-	empty_pragma_header["Pragma"] = " "; 
+	// Space is required to stop llurlrequest from turning off proxying
+	empty_pragma_header[HTTP_HEADER_PRAGMA] = " "; 
 	LLHTTPClient::get(url, responder, empty_pragma_header);
 }
 
 void LLHTTPClientAdapter::get(const std::string& url, LLCurl::ResponderPtr responder, const LLSD& headers) 
 {
 	LLSD empty_pragma_header = headers;
-	// as above
-	empty_pragma_header["Pragma"] = " ";
+	if (!empty_pragma_header.has(HTTP_HEADER_PRAGMA))
+	{
+		// as above
+		empty_pragma_header[HTTP_HEADER_PRAGMA] = " ";
+	}
 	LLHTTPClient::get(url, responder, empty_pragma_header);
 }
 
@@ -53,3 +56,18 @@ void LLHTTPClientAdapter::put(const std::string& url, const LLSD& body, LLCurl::
 	LLHTTPClient::put(url, body, responder);
 }
 
+void LLHTTPClientAdapter::put(
+		const std::string& url,
+		const LLSD& body,
+		LLCurl::ResponderPtr responder,
+		const LLSD& headers)
+{
+	LLHTTPClient::put(url, body, responder, headers);
+}
+
+void LLHTTPClientAdapter::del(
+	const std::string& url,
+	LLCurl::ResponderPtr responder)
+{
+	LLHTTPClient::del(url, responder);
+}