Add JSON converter.

.drone.yml

@@ -25,8 +25,8 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qq catch libcgicc-dev
   - apt-get install -qq build-essential cmake clang pkg-config
+  - apt-get install -qq catch libcgicc-dev nlohmann-json-dev
   - rm -rf build && mkdir -p build && cd build
   - cmake -G "Unix Makefiles" -DWITH_TESTS=YES ..
   - make VERBOSE=1
@@ -54,8 +54,8 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qq catch libcgicc-dev
   - apt-get install -qq build-essential cmake clang pkg-config
+  - apt-get install -qq catch libcgicc-dev nlohmann-json-dev
   - rm -rf build && mkdir -p build && cd build
   - cmake -G "Unix Makefiles" -DWITH_TESTS=YES ..
   - make VERBOSE=1

src/CMakeLists.txt

@@ -2,6 +2,8 @@ include(GNUInstallDirs)
 
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(cgicc REQUIRED IMPORTED_TARGET cgicc)
+find_package(nlohmann_json REQUIRED CONFIG)
+
 add_executable(${PROJECT_NAME} main.cpp)
 
 file(GLOB_RECURSE sources_src *.cpp)
@@ -12,7 +14,7 @@ unset(sources_src)
 unset(headers_src)
 
 target_link_libraries(${PROJECT_NAME}
-  PRIVATE PkgConfig::cgicc)
+  PRIVATE PkgConfig::cgicc nlohmann_json::nlohmann_json)
 
 install(TARGETS ${PROJECT_NAME}
   RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")

src/json.cpp

@@ -0,0 +1,33 @@
+/*  This file is part of FediBlock-backend.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "json.hpp"
+
+#include <nlohmann/json.hpp>
+
+namespace FediBlock
+{
+
+string to_json(const entry_type &entry)
+{
+    nlohmann::json json{{"instance", entry.instance},
+                        {"tags", entry.tags},
+                        {"receipts", entry.receipts},
+                        {"description", entry.description}};
+    return json.dump(4);
+}
+
+} // namespace FediBlock

src/json.hpp

@@ -0,0 +1,34 @@
+/*  This file is part of FediBlock-backend.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef FEDIBLOCK_BACKEND_JSON_HPP
+#define FEDIBLOCK_BACKEND_JSON_HPP
+
+#include "cgi.hpp"
+
+#include <string>
+
+namespace FediBlock
+{
+
+using std::string;
+
+// Convert our object into a JSON string.
+[[nodiscard]] string to_json(const entry_type &entry);
+
+} // namespace FediBlock
+
+#endif // FEDIBLOCK_BACKEND_JSON_HPP

src/main.cpp

@@ -15,6 +15,7 @@
  */
 
 #include "cgi.hpp"
+#include "json.hpp"
 
 #include <iostream>
 
@@ -42,6 +43,9 @@ void print_debug()
     }
     cout << "\r\n";
     cout << "  Description: " << entry.description << "\r\n";
+
+    cout << "\r\n\r\nJSON:\r\n";
+    cout << to_json(entry) << "\r\n";
 }
 
 int main()