From f945415210f0e18c2c6d941fda6b7d45cb0f06f1 Mon Sep 17 00:00:00 2001 From: Don Kjer Date: Wed, 13 Mar 2013 06:26:25 +0000 Subject: 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. --- indra/llcorehttp/_httpoprequest.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'indra/llcorehttp/_httpoprequest.cpp') diff --git a/indra/llcorehttp/_httpoprequest.cpp b/indra/llcorehttp/_httpoprequest.cpp index 7db19b1841..5e703cd183 100644 --- a/indra/llcorehttp/_httpoprequest.cpp +++ b/indra/llcorehttp/_httpoprequest.cpp @@ -44,7 +44,7 @@ #include "_httplibcurl.h" #include "_httpinternal.h" -#include "llhttpstatuscodes.h" +#include "llhttpconstants.h" #include "llproxy.h" namespace @@ -479,6 +479,7 @@ HttpStatus HttpOpRequest::prepareRequest(HttpService * service) curl_easy_setopt(mCurlHandle, CURLOPT_INFILESIZE, data_size); curl_easy_setopt(mCurlHandle, CURLOPT_POSTFIELDS, (void *) NULL); mCurlHeaders = curl_slist_append(mCurlHeaders, "Expect:"); + // *TODO: Should this be 'Keep-Alive' ? mCurlHeaders = curl_slist_append(mCurlHeaders, "Connection: keep-alive"); mCurlHeaders = curl_slist_append(mCurlHeaders, "Keep-alive: 300"); } -- cgit v1.2.3 From 8868964b549822f260694c2bf26b903dbce8ed0a Mon Sep 17 00:00:00 2001 From: Monty Brandenberg Date: Mon, 15 Apr 2013 16:55:35 +0000 Subject: SH-4106 Significantly upgrade the HttpHeaders interface for SSB. Header container moves from a vector of raw lines to a vector of string pairs representing name/value pairs in headers. For incoming headers, we normalize the name to lowercase and trim it. Values are only left-trimmed. Outgoing headers are left as-is. Simple find() method for the common case, forward and reverse iterators for those few who need to do it themselves. The HTTP status line (e.g. 'HTTP/1.1 200 Ok') is no longer treated as a header to be returned to caller. Unit tests, as usual, were a bear but they absolutely ensured outgoing HTTP header conformance after the change. Grunt work paid off. LLTextureFetch was also given a second options structure for texture fetches. Same as the original but with header return to caller requested. Baked textures should use this, the other 20,000 texture fetch requests should continue to use the original. --- indra/llcorehttp/_httpoprequest.cpp | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'indra/llcorehttp/_httpoprequest.cpp') diff --git a/indra/llcorehttp/_httpoprequest.cpp b/indra/llcorehttp/_httpoprequest.cpp index 74fc5c393a..95e0f72c0b 100644 --- a/indra/llcorehttp/_httpoprequest.cpp +++ b/indra/llcorehttp/_httpoprequest.cpp @@ -4,7 +4,7 @@ * * $LicenseInfo:firstyear=2012&license=viewerlgpl$ * Second Life Viewer Source Code - * Copyright (C) 2012, Linden Research, Inc. + * Copyright (C) 2012-2013, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -610,7 +610,8 @@ size_t HttpOpRequest::headerCallback(void * data, size_t size, size_t nmemb, voi const size_t hdr_size(size * nmemb); const char * hdr_data(static_cast(data)); // Not null terminated - + bool is_header(true); + if (hdr_size >= status_line_len && ! strncmp(status_line, hdr_data, status_line_len)) { // One of possibly several status lines. Reset what we know and start over @@ -621,8 +622,9 @@ size_t HttpOpRequest::headerCallback(void * data, size_t size, size_t nmemb, voi op->mStatus = HttpStatus(); if (op->mReplyHeaders) { - op->mReplyHeaders->mHeaders.clear(); + op->mReplyHeaders->clear(); } + is_header = false; } // Nothing in here wants a final CR/LF combination. Remove @@ -637,18 +639,18 @@ size_t HttpOpRequest::headerCallback(void * data, size_t size, size_t nmemb, voi } // Save header if caller wants them in the response - if (op->mProcFlags & PF_SAVE_HEADERS) + if (is_header && op->mProcFlags & PF_SAVE_HEADERS) { // Save headers in response if (! op->mReplyHeaders) { op->mReplyHeaders = new HttpHeaders; } - op->mReplyHeaders->mHeaders.push_back(std::string(hdr_data, wanted_hdr_size)); + op->mReplyHeaders->appendNormal(hdr_data, wanted_hdr_size); } // Detect and parse 'Content-Range' headers - if (op->mProcFlags & PF_SCAN_RANGE_HEADER) + if (is_header && op->mProcFlags & PF_SCAN_RANGE_HEADER) { char hdr_buffer[128]; // Enough for a reasonable header size_t frag_size((std::min)(wanted_hdr_size, sizeof(hdr_buffer) - 1)); -- cgit v1.2.3