From 0cecffd4565b52bd8d200f6bc9f4144f244a6515 Mon Sep 17 00:00:00 2001 From: maratsabitov Date: Fri, 8 May 2020 18:03:57 +0300 Subject: Introduce cloudproxy service Cloudproxy service allows applications to communicate with clouds. The commit includes the test applications as sample for real client imlementation. Bug-AGL: SPEC-3370 Change-Id: I82d8122e93d01451f4471cc20c706e75c16f1c29 Signed-off-by: maratsabitov --- src/ClientManager.cpp | 215 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100755 src/ClientManager.cpp (limited to 'src/ClientManager.cpp') diff --git a/src/ClientManager.cpp b/src/ClientManager.cpp new file mode 100755 index 0000000..74d672d --- /dev/null +++ b/src/ClientManager.cpp @@ -0,0 +1,215 @@ +/* + * Copyright (C) 2020 MERA + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "ClientManager.h" +#include "hmi-debug.h" + +#include +#include + +// static +void ClientManager::cbRemoveClientCtx(void *data) +{ + ClientManager::instance().removeClient((ClientManager::ClientCtx*)data); +} + + +// static +ClientManager& ClientManager::instance() +{ + static ClientManager instance; + return instance; +} + + +ClientManager::~ClientManager() +{ + std::lock_guard lock(this->m_mutex); + for (auto cl : m_clients) + delete cl.second; +} + + +ClientManager::ClientCtx* ClientManager::addClient(afb_req_t req, const std::string& appid) +{ + ClientCtx* ctx = (ClientCtx*)afb_req_context_get(req); + if (!ctx) + { + HMI_NOTICE("cloudproxy-service", "create new session for %s", appid.c_str()); + ctx = new ClientCtx{appid, afb_api_make_event(req->api, appid.c_str())}; + afb_req_session_set_LOA(req, 1); + afb_req_context_set(req, ctx, cbRemoveClientCtx); + } + + m_clients[appid] = ctx; + return ctx; +} + + +void ClientManager::removeClient(ClientCtx* ctx) +{ + if(!ctx) + { + HMI_ERROR("cloudproxy-service", "data is nullptr"); + return; + } + + HMI_NOTICE("cloudproxy-service", "remove app %s", ctx->appid.c_str()); + std::lock_guard lock(this->m_mutex); + + auto it = m_clients.find(ctx->appid); + if (it != m_clients.end()) + { + delete it->second; + m_clients.erase(it); + } +} + + +bool ClientManager::handleRequest(afb_req_t request, const std::string& verb, const std::string& appid) +{ + HMI_NOTICE("cloudproxy-service", "handleRequest: verb='%s', appid='%s'", verb.c_str(), appid.c_str()); + std::lock_guard lock(this->m_mutex); + + if (appid.empty()) + { + HMI_ERROR("cloudproxy-service", "appid is empty"); + return false; + } + + auto client_it = m_clients.find(appid); + if (verb != "subscribe" && client_it == m_clients.end()) + { + HMI_NOTICE("cloudproxy-service", "client with appid '%s' is not registered", appid.c_str()); + return false; + } + + if (verb == "subscribe") + { + const char *value = afb_req_value(request, "event"); + if(!value) + { + HMI_ERROR("cloudproxy-service", "Can't subscribe: event name is not defined"); + return false; + } + std::string req_event{value}; + HMI_NOTICE("cloudproxy-service", "subscribe req: appid '%s', event '%s'", appid.c_str(), req_event.c_str()); + + if (!isSupportedEvent(req_event)) + { + HMI_ERROR("cloudproxy-service", "event '%s' is not supported", req_event.c_str()); + return false; + } + + ClientCtx* ctx = addClient(request, appid); + ctx->subs_events.insert(req_event); + if(!ctx->subscription) + { + if(afb_req_subscribe(request, ctx->event) == 0) + { + ctx->subscription = true; + } + else + { + HMI_ERROR("cloudproxy-service", "API error in afb_req_subscribe"); + return false; + } + } + + return true; + } + else if (verb == "unsubscribe") + { + const char *value = afb_req_value(request, "event"); + if(!value) + { + HMI_ERROR("cloudproxy-service", "Can't unsubscribe: event name is not defined"); + return false; + } + std::string req_event{value}; + HMI_NOTICE("cloudproxy-service", "unsubscribe req: appid '%s', event '%s'", appid.c_str(), req_event.c_str()); + + ClientCtx* ctx{client_it->second}; + ctx->subs_events.erase(req_event); + + if(ctx->subs_events.empty()) + { + if (afb_req_unsubscribe(request, ctx->event) != 0) + HMI_ERROR("cloudproxy-service", "API error in afb_req_unsubscribe"); + + ctx->subscription = false; + } + + return true; + } + + HMI_NOTICE("cloudproxy-service", "Unsupported verb '%s'", verb.c_str()); + return false; +} + + +bool ClientManager::isSupportedEvent(const std::string& event) +{ + const std::set event_list{ + "sendMessageConfirmation", + "receivedMessage" + }; + + return (event_list.end() != event_list.find(event)); +} + + +bool ClientManager::emitReceivedMessage(const std::string& appid, const std::string& data) +{ + std::lock_guard lock(this->m_mutex); + + auto it = m_clients.find(appid); + if (it == m_clients.end()) + { + HMI_WARNING("cloudproxy-service", "Client with appid '%s' is not present in list", appid.c_str()); + // print app list + for (const auto& i : m_clients) + HMI_DEBUG("cloudproxy-service", "Client list: appid '%s' - '%s'", i.first.c_str(), i.second->appid.c_str()); + + return false; + } + + json_object* push_obj = json_object_new_object(); + json_object_object_add(push_obj, "type", json_object_new_string("receivedMessage")); + json_object_object_add(push_obj, "data", json_object_new_string(data.c_str())); + return (0 == afb_event_push(it->second->event, push_obj)); +} + +bool ClientManager::emitSendMessageConfirmation(const std::string& appid, bool result) +{ + std::lock_guard lock(this->m_mutex); + + auto it = m_clients.find(appid); + if (it == m_clients.end()) + { + HMI_WARNING("cloudproxy-service", "Client with appid '%s' is not present in list", appid.c_str()); + // print app list + for (const auto& i : m_clients) + HMI_DEBUG("cloudproxy-service", "Client list: appid '%s' - '%s'", i.first.c_str(), i.second->appid.c_str()); + + return false; + } + + json_object* push_obj = json_object_new_object(); + json_object_object_add(push_obj, "type", json_object_new_string("sendMessageConfirmation")); + json_object_object_add(push_obj, "result", json_object_new_boolean(result)); + return (0 == afb_event_push(it->second->event, push_obj)); +} -- cgit 1.2.3-korg