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/*
Copyright (c) 2018, Ford Motor Company
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following
disclaimer in the documentation and/or other materials provided with the
distribution.
Neither the name of the Ford Motor Company nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include "sdl_rpc_plugin/commands/mobile/on_system_request_notification.h"
#include <cstdio>
#include <cstring>
#include <string>
#include "application_manager/application_manager.h"
#include "application_manager/policies/policy_handler_interface.h"
#include "interfaces/MOBILE_API.h"
#include "policy/policy_table/enums.h"
#include "utils/file_system.h"
#include "utils/helpers.h"
namespace sdl_rpc_plugin {
using namespace application_manager;
namespace commands {
namespace mobile {
SDL_CREATE_LOG_VARIABLE("Commands")
OnSystemRequestNotification::OnSystemRequestNotification(
const application_manager::commands::MessageSharedPtr& message,
ApplicationManager& application_manager,
app_mngr::rpc_service::RPCService& rpc_service,
app_mngr::HMICapabilities& hmi_capabilities,
policy::PolicyHandlerInterface& policy_handler)
: CommandNotificationImpl(message,
application_manager,
rpc_service,
hmi_capabilities,
policy_handler) {}
OnSystemRequestNotification::~OnSystemRequestNotification() {}
void OnSystemRequestNotification::Run() {
SDL_LOG_AUTO_TRACE();
using namespace application_manager;
using namespace mobile_apis;
using namespace helpers;
ApplicationSharedPtr app = application_manager_.application(connection_key());
if (app.use_count() == 0) {
SDL_LOG_ERROR("Application with connection key " << connection_key()
<< " is not registered.");
return;
}
const mobile_apis::RequestType::eType request_type =
static_cast<mobile_apis::RequestType::eType>(
(*message_)[strings::msg_params][strings::request_type].asInt());
const policy::PolicyHandlerInterface& policy_handler = policy_handler_;
const std::string stringified_request_type =
rpc::policy_table_interface_base::EnumToJsonString(
static_cast<rpc::policy_table_interface_base::RequestType>(
request_type));
if (!policy_handler.IsRequestTypeAllowed(
app->device(), app->policy_app_id(), request_type)) {
SDL_LOG_WARN("Request type " << stringified_request_type
<< " is not allowed by policies");
return;
}
const bool request_subtype_present =
(*message_)[strings::msg_params].keyExists(strings::request_subtype);
if (request_subtype_present) {
const std::string request_subtype =
(*message_)[strings::msg_params][strings::request_subtype].asString();
if (!policy_handler.IsRequestSubTypeAllowed(app->policy_app_id(),
request_subtype)) {
SDL_LOG_ERROR("Request subtype: " << request_subtype
<< " is DISALLOWED by policies");
return;
}
}
SDL_LOG_DEBUG("Processing Request type : " << stringified_request_type);
BinaryMessage binary_data;
if ((*message_)[strings::msg_params].keyExists(strings::file_name)) {
const std::string filename =
(*message_)[strings::msg_params][strings::file_name].asString();
file_system::ReadBinaryFile(filename, binary_data);
} else if ((*message_)[strings::params].keyExists(strings::binary_data)) {
// Binary data may already be attached to the message
binary_data = (*message_)[strings::params][strings::binary_data].asBinary();
}
if (mobile_apis::RequestType::PROPRIETARY == request_type) {
/* According to requirements:
"If the requestType = PROPRIETARY, add to mobile API fileType = JSON
If the requestType = HTTP, add to mobile API fileType = BINARY" */
#if defined(PROPRIETARY_MODE)
AddHeader(binary_data);
#endif // PROPRIETARY_MODE
(*message_)[strings::msg_params][strings::file_type] = FileType::JSON;
} else if (mobile_apis::RequestType::HTTP == request_type) {
(*message_)[strings::msg_params][strings::file_type] = FileType::BINARY;
if ((*message_)[strings::msg_params].keyExists(strings::url)) {
(*message_)[strings::msg_params][strings::timeout] =
policy_handler.TimeoutExchangeSec();
}
} else if (mobile_apis::RequestType::LOCK_SCREEN_ICON_URL == request_type) {
if (binary_data.empty() &&
(!(*message_)[strings::msg_params].keyExists(strings::url) ||
(*message_)[strings::msg_params][strings::url].empty())) {
SDL_LOG_ERROR(
"discarding LOCK_SCREEN_ICON_URL request with no URL or data");
return;
}
}
#if defined(PROPRIETARY_MODE) || defined(EXTERNAL_PROPRIETARY_MODE)
if (!binary_data.empty()) {
(*message_)[strings::params][strings::binary_data] = binary_data;
}
#endif // PROPRIETARY_MODE
SendNotification();
}
#ifdef PROPRIETARY_MODE
void OnSystemRequestNotification::AddHeader(BinaryMessage& message) const {
SDL_LOG_AUTO_TRACE();
const uint32_t timeout = policy_handler_.TimeoutExchangeSec();
size_t content_length;
char size_str[24];
if (0 > sprintf(size_str, "%zu", static_cast<size_t>(message.size()))) {
memset(size_str, 0, sizeof(size_str));
}
char timeout_str[24];
if (0 > sprintf(timeout_str, "%u", timeout)) {
memset(timeout_str, 0, sizeof(timeout_str));
}
std::string policy_table_string = std::string(message.begin(), message.end());
/* The Content-Length to be sent in the HTTP Request header should be
calculated before additional escape characters are added to the
policy table string. The mobile proxy will remove the escape
characters after receiving this request. */
content_length = ParsePTString(policy_table_string);
if (0 > sprintf(size_str, "%zu", content_length)) {
memset(size_str, 0, sizeof(size_str));
}
const std::string header =
"{"
" \"HTTPRequest\": {"
"\"headers\": {"
"\"ContentType\": \"application/json\","
"\"ConnectTimeout\": " +
std::string(timeout_str) +
","
"\"DoOutput\": true,"
"\"DoInput\": true,"
"\"UseCaches\": false,"
"\"RequestMethod\": \"POST\","
"\"ReadTimeout\":" +
std::string(timeout_str) +
","
"\"InstanceFollowRedirects\": false,"
"\"charset\": \"utf-8\","
"\"Content-Length\": " +
std::string(size_str) +
"},"
"\"body\": \"" +
policy_table_string +
"\""
"}"
"}";
message.clear();
message.assign(header.begin(), header.end());
SDL_LOG_DEBUG(
"Header added: " << std::string(message.begin(), message.end()));
}
size_t OnSystemRequestNotification::ParsePTString(
std::string& pt_string) const {
std::string result;
size_t length = pt_string.length();
size_t result_length = length;
result.reserve(length * 2);
for (size_t i = 0; i < length; ++i) {
if (pt_string[i] == '\"' || pt_string[i] == '\\') {
result += '\\';
} else if (pt_string[i] == '\n') {
--result_length; // contentLength is adjusted when this character is
// not copied to result.
continue;
}
result += pt_string[i];
}
pt_string = result;
return result_length;
}
#endif // PROPRIETARY_MODE
} // namespace mobile
} // namespace commands
} // namespace sdl_rpc_plugin
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