/* * Carla REST API Server * Copyright (C) 2018 Filipe Coelho * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or any later version. * * 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 General Public License for more details. * * For a full copy of the GNU General Public License see the doc/GPL.txt file. */ /* NOTE * Even though Carla is GPL, restbed if AGPL. * As such, the resulting binary will be AGPL. * Take this into consideration before deploying it to any servers. */ #include "common.hpp" #include "carla-host.cpp" #include "carla-utils.cpp" #include "CarlaMutex.hpp" #include "CarlaStringList.hpp" // ------------------------------------------------------------------------------------------------------------------- std::vector> gSessions; CarlaStringList gSessionMessages; CarlaMutex gSessionMessagesMutex; // ------------------------------------------------------------------------------------------------------------------- void send_server_side_message(const char* const message) { const CarlaMutexLocker cml(gSessionMessagesMutex); gSessionMessages.append(message); } // ------------------------------------------------------------------------------------------------------------------- static void register_server_side_handler(const std::shared_ptr session) { const auto headers = std::multimap { { "Connection", "keep-alive" }, { "Cache-Control", "no-cache" }, { "Content-Type", "text/event-stream" }, { "Access-Control-Allow-Origin", "*" } //Only required for demo purposes. }; session->yield(OK, headers, [](const std::shared_ptr rsession) { gSessions.push_back(rsession); }); } static void event_stream_handler(void) { static bool firstInit = true; if (firstInit) { firstInit = false; carla_stdout("Carla REST-API Server started"); } gSessions.erase( std::remove_if(gSessions.begin(), gSessions.end(), [](const std::shared_ptr &a) { return a->is_closed(); }), gSessions.end()); CarlaStringList messages; { const CarlaMutexLocker cml(gSessionMessagesMutex); if (gSessionMessages.count() > 0) gSessionMessages.moveTo(messages); } for (auto message : messages) { // std::puts(message); for (auto session : gSessions) session->yield(OK, message); } } // ------------------------------------------------------------------------------------------------------------------- static void make_resource(Service& service, const char* const path, const std::function)>& callback) { std::shared_ptr resource = std::make_shared(); resource->set_path(path); resource->set_method_handler("GET", callback); service.publish(resource); } // ------------------------------------------------------------------------------------------------------------------- int main(int, const char**) { Service service; // server-side messages { std::shared_ptr resource = std::make_shared(); resource->set_path("/stream"); resource->set_method_handler("GET", register_server_side_handler); service.publish(resource); } // carla-host make_resource(service, "/get_engine_driver_count", handle_carla_get_engine_driver_count); make_resource(service, "/get_engine_driver_name", handle_carla_get_engine_driver_name); make_resource(service, "/get_engine_driver_device_names", handle_carla_get_engine_driver_device_names); make_resource(service, "/get_engine_driver_device_info", handle_carla_get_engine_driver_device_info); make_resource(service, "/engine_init", handle_carla_engine_init); make_resource(service, "/engine_close", handle_carla_engine_close); make_resource(service, "/is_engine_running", handle_carla_is_engine_running); make_resource(service, "/set_engine_about_to_close", handle_carla_set_engine_about_to_close); make_resource(service, "/set_engine_option", handle_carla_set_engine_option); make_resource(service, "/load_file", handle_carla_load_file); make_resource(service, "/load_project", handle_carla_load_project); make_resource(service, "/save_project", handle_carla_save_project); make_resource(service, "/patchbay_connect", handle_carla_patchbay_connect); make_resource(service, "/patchbay_disconnect", handle_carla_patchbay_disconnect); make_resource(service, "/patchbay_refresh", handle_carla_patchbay_refresh); make_resource(service, "/transport_play", handle_carla_transport_play); make_resource(service, "/transport_pause", handle_carla_transport_pause); make_resource(service, "/transport_bpm", handle_carla_transport_bpm); make_resource(service, "/transport_relocate", handle_carla_transport_relocate); make_resource(service, "/get_current_transport_frame", handle_carla_get_current_transport_frame); make_resource(service, "/get_transport_info", handle_carla_get_transport_info); make_resource(service, "/get_current_plugin_count", handle_carla_get_current_plugin_count); make_resource(service, "/get_max_plugin_number", handle_carla_get_max_plugin_number); make_resource(service, "/add_plugin", handle_carla_add_plugin); make_resource(service, "/remove_plugin", handle_carla_remove_plugin); make_resource(service, "/remove_all_plugins", handle_carla_remove_all_plugins); make_resource(service, "/rename_plugin", handle_carla_rename_plugin); make_resource(service, "/clone_plugin", handle_carla_clone_plugin); make_resource(service, "/replace_plugin", handle_carla_replace_plugin); make_resource(service, "/switch_plugins", handle_carla_switch_plugins); make_resource(service, "/load_plugin_state", handle_carla_load_plugin_state); make_resource(service, "/save_plugin_state", handle_carla_save_plugin_state); make_resource(service, "/export_plugin_lv2", handle_carla_export_plugin_lv2); make_resource(service, "/get_plugin_info", handle_carla_get_plugin_info); make_resource(service, "/get_audio_port_count_info", handle_carla_get_audio_port_count_info); make_resource(service, "/get_midi_port_count_info", handle_carla_get_midi_port_count_info); make_resource(service, "/get_parameter_count_info", handle_carla_get_parameter_count_info); make_resource(service, "/get_parameter_info", handle_carla_get_parameter_info); make_resource(service, "/get_parameter_scalepoint_info", handle_carla_get_parameter_scalepoint_info); make_resource(service, "/get_parameter_data", handle_carla_get_parameter_data); make_resource(service, "/get_parameter_ranges", handle_carla_get_parameter_ranges); make_resource(service, "/get_midi_program_data", handle_carla_get_midi_program_data); make_resource(service, "/get_custom_data", handle_carla_get_custom_data); make_resource(service, "/get_custom_data_value", handle_carla_get_custom_data_value); make_resource(service, "/get_chunk_data", handle_carla_get_chunk_data); make_resource(service, "/get_parameter_count", handle_carla_get_parameter_count); make_resource(service, "/get_program_count", handle_carla_get_program_count); make_resource(service, "/get_midi_program_count", handle_carla_get_midi_program_count); make_resource(service, "/get_custom_data_count", handle_carla_get_custom_data_count); make_resource(service, "/get_parameter_text", handle_carla_get_parameter_text); make_resource(service, "/get_program_name", handle_carla_get_program_name); make_resource(service, "/get_midi_program_name", handle_carla_get_midi_program_name); make_resource(service, "/get_real_plugin_name", handle_carla_get_real_plugin_name); make_resource(service, "/get_current_program_index", handle_carla_get_current_program_index); make_resource(service, "/get_current_midi_program_index", handle_carla_get_current_midi_program_index); make_resource(service, "/get_default_parameter_value", handle_carla_get_default_parameter_value); make_resource(service, "/get_current_parameter_value", handle_carla_get_current_parameter_value); make_resource(service, "/get_internal_parameter_value", handle_carla_get_internal_parameter_value); make_resource(service, "/get_input_peak_value", handle_carla_get_input_peak_value); make_resource(service, "/get_output_peak_value", handle_carla_get_output_peak_value); make_resource(service, "/set_active", handle_carla_set_active); make_resource(service, "/set_drywet", handle_carla_set_drywet); make_resource(service, "/set_volume", handle_carla_set_volume); make_resource(service, "/set_balance_left", handle_carla_set_balance_left); make_resource(service, "/set_balance_right", handle_carla_set_balance_right); make_resource(service, "/set_panning", handle_carla_set_panning); make_resource(service, "/set_ctrl_channel", handle_carla_set_ctrl_channel); make_resource(service, "/set_option", handle_carla_set_option); make_resource(service, "/set_parameter_value", handle_carla_set_parameter_value); make_resource(service, "/set_parameter_midi_channel", handle_carla_set_parameter_midi_channel); make_resource(service, "/set_parameter_midi_cc", handle_carla_set_parameter_midi_cc); make_resource(service, "/set_program", handle_carla_set_program); make_resource(service, "/set_midi_program", handle_carla_set_midi_program); make_resource(service, "/set_custom_data", handle_carla_set_custom_data); make_resource(service, "/set_chunk_data", handle_carla_set_chunk_data); make_resource(service, "/prepare_for_save", handle_carla_prepare_for_save); make_resource(service, "/reset_parameters", handle_carla_reset_parameters); make_resource(service, "/randomize_parameters", handle_carla_randomize_parameters); make_resource(service, "/send_midi_note", handle_carla_send_midi_note); make_resource(service, "/get_buffer_size", handle_carla_get_buffer_size); make_resource(service, "/get_sample_rate", handle_carla_get_sample_rate); make_resource(service, "/get_last_error", handle_carla_get_last_error); make_resource(service, "/get_host_osc_url_tcp", handle_carla_get_host_osc_url_tcp); make_resource(service, "/get_host_osc_url_udp", handle_carla_get_host_osc_url_udp); // carla-utils make_resource(service, "/get_complete_license_text", handle_carla_get_complete_license_text); make_resource(service, "/get_supported_file_extensions", handle_carla_get_supported_file_extensions); make_resource(service, "/get_supported_features", handle_carla_get_supported_features); make_resource(service, "/get_cached_plugin_count", handle_carla_get_cached_plugin_count); make_resource(service, "/get_cached_plugin_info", handle_carla_get_cached_plugin_info); // schedule events service.schedule(engine_idle_handler); // FIXME, crashes on fast times, but we need ~30Hz for OSC.. service.schedule(event_stream_handler, std::chrono::milliseconds(500)); std::shared_ptr settings = std::make_shared(); settings->set_port(2228); settings->set_default_header("Connection", "close"); service.start(settings); return 0; } // -------------------------------------------------------------------------------------------------------------------