From d01b901e99a191d93aab09031a311a288b0b0331 Mon Sep 17 00:00:00 2001
From: Willard <sven0215@hotmail.com>
Date: Fri, 25 Dec 2020 17:55:59 +0100
Subject: [PATCH] gzip data

---
 .github/workflows/ccpp.yml |  2 +-
 src/CMakeLists.txt         |  2 +-
 src/main.cpp               | 35 +++++++++++++++++++++++++----------
 3 files changed, 27 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index 8092318..9c88e97 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -51,7 +51,7 @@ jobs:
         #setupOnly: true
         vcpkgDirectory: '${{ github.workspace }}/vcpkg'
         vcpkgTriplet: '${{ matrix.triplet }}'
-        vcpkgArguments: 'nlohmann-json boost-program-options boost-property-tree cpr'
+        vcpkgArguments: 'nlohmann-json boost-program-options boost-property-tree boost-iostreams cpr'
         vcpkgGitCommitId: 'acb6b10e7fdf5e8519c18398d0b069e1d58ca025'
 
     # Build with CMake and Ninja
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7e338b6..5d7e3fa 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -28,7 +28,7 @@ find_package(cpr CONFIG REQUIRED)
 
 # Boost
 set(Boost_USE_STATIC_LIBS ON)
-FIND_PACKAGE(Boost 1.69 COMPONENTS program_options REQUIRED)
+FIND_PACKAGE(Boost 1.69 COMPONENTS program_options iostreams REQUIRED)
 
 #include the Intercept headers from the submodule
 set(INTERCEPT_CLIENT_PATH "${CMAKE_SOURCE_DIR}/intercept/src/client")
diff --git a/src/main.cpp b/src/main.cpp
index a7c4e43..3075d5e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -9,6 +9,11 @@
 #include <boost/property_tree/ptree.hpp>
 #include <boost/property_tree/ini_parser.hpp>
 
+// Gzip
+#include <boost/iostreams/filtering_stream.hpp>
+#include <boost/iostreams/copy.hpp>
+#include <boost/iostreams/filter/gzip.hpp>
+
 #include <string>
 #include <iostream>
 #include <sstream>
@@ -26,6 +31,7 @@ static inline std::string GRAD_REPLAY_USER_AGENT = "grad_replay_intercept/" +
 
 namespace nl = nlohmann;
 namespace fs = std::filesystem;
+namespace bi = boost::iostreams;
 
 using namespace intercept;
 using namespace grad::replay;
@@ -183,21 +189,30 @@ game_value sendReplay(game_state& gs, SQFPar right_arg) {
         std::thread sendReplayThread([obj, now]() {
             try
             {
-                std::stringstream ss;
-                ss << obj;
-
-                auto header = cpr::Header{
-                    {"Content-Type","application/json"},
-                    {"content-length", std::to_string(ss.str().size())},
-                    {"Connection", "close"},
-                    {"Authorization", std::string("Bearer ").append(token)},
-                    {"User-Agent", GRAD_REPLAY_USER_AGENT}
+                std::stringstream inputStream(obj.dump());
+
+                bi::filtering_istream fis;
+                fis.push(bi::gzip_compressor(bi::gzip_params(bi::gzip::best_compression)));
+                fis.push(inputStream);
+
+                std::stringstream outputStream;
+                bi::copy(fis, outputStream);
+
+                std::string outputString(outputStream.str());
+
+                auto header = cpr::Header {
+                    { "Content-Type", "application/json" },
+                    { "Content-Encoding", "gzip" },
+                    { "Content-Length", std::to_string(outputString.size()) },
+                    { "Connection", "close" },
+                    { "Authorization", std::string("Bearer ").append(token) },
+                    { "User-Agent", GRAD_REPLAY_USER_AGENT }
                 };
 
                 cpr::Response response = cpr::Post(
                     cpr::Url{ url },
                     header,
-                    cpr::Body(ss.str()),
+                    cpr::Body(outputString),
                     cpr::Timeout(60000)
                 );