Export the traces using gzip format

CMakeLists.txt

@@ -20,7 +20,7 @@ endif()
 find_package(PkgConfig REQUIRED)
 find_package(Threads REQUIRED)
 find_package(Filesystem REQUIRED)
-find_package(Boost REQUIRED COMPONENTS system program_options)
+find_package(Boost REQUIRED COMPONENTS system program_options iostreams)
 find_package(Wt REQUIRED COMPONENTS Wt Dbo DboSqlite3 HTTP)
 pkg_check_modules(Taglib REQUIRED IMPORTED_TARGET taglib)
 pkg_check_modules(Config++ REQUIRED IMPORTED_TARGET libconfig++)

Dockerfile-release

@@ -147,6 +147,7 @@ ARG	RUNTIME_PACKAGES=" \
 	lame-libs \
 	zlib \
 	boost-filesystem \
+	boost-iostreams \
 	boost-program_options \
 	boost-system \
 	boost-thread \

src/libs/database/impl/Utils.hpp

@@ -174,4 +174,3 @@ namespace lms::db::utils
 
     Wt::WDateTime normalizeDateTime(const Wt::WDateTime& dateTime);
 }
-

src/lms/CMakeLists.txt

@@ -58,6 +58,9 @@ target_include_directories(lms PRIVATE
 	)
 
 target_link_libraries(lms PRIVATE
+	Boost::iostreams
+	Wt::Wt
+	Wt::HTTP
 	lmsav
 	lmsauth
 	lmsdatabase
@@ -68,8 +71,6 @@ target_link_libraries(lms PRIVATE
 	lmsservice-cover
 	lmssubsonic
 	lmscore
-	Wt::Wt
-	Wt::HTTP
 	)
 
 install(TARGETS lms DESTINATION bin)

src/lms/ui/admin/TracingView.cpp

@@ -19,6 +19,9 @@
 
 #include "TracingView.hpp"
 
+#include <boost/iostreams/filtering_stream.hpp>
+#include <boost/iostreams/filter/gzip.hpp>
+
 #include <Wt/Http/Response.h>
 #include <Wt/WDateTime.h>
 #include <Wt/WPushButton.h>
@@ -46,9 +49,14 @@ namespace lms::ui
 
             void handleRequest(const Wt::Http::Request&, Wt::Http::Response& response)
             {
-                suggestFileName(core::stringUtils::toISO8601String(Wt::WDateTime::currentDateTime()) + "-traces.json");
+                response.setMimeType("application/gzip");
-                response.setMimeType("application/json");
+                suggestFileName(core::stringUtils::toISO8601String(Wt::WDateTime::currentDateTime()) + "-traces.json.gz");
-                _traceLogger.dumpCurrentBuffer(response.out());
+
+                boost::iostreams::filtering_ostream gzipStream;
+                gzipStream.push(boost::iostreams::gzip_compressor{});
+                gzipStream.push(response.out());
+
+                _traceLogger.dumpCurrentBuffer(gzipStream);
             }
 
         private: