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/**
* @file technology.cpp
*
* @brief Connman technology request handling.
*
* @author Ossama Othman @<ossama.othman@@intel.com@>
*
* @copyright @par
* Copyright 2013 Intel Corporation All Rights Reserved.
* @par
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
* @par
* This library 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
* Lesser General Public License for more details.
* @par
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "technology.hpp"
#include "connman_manager.hpp"
#include <settingsd/response_callback.hpp>
#include <settingsd/glib_traits.hpp>
#include <settingsd/json_glib_traits.hpp>
#include <settingsd/unique_ptr.hpp>
#include <cstring>
ivi::settings::technology::technology(char const * path,
GDBusConnection * connection,
connman_manager & manager)
: connman_("net.connman.Technology", // Interface
path, // Object path
connection)
, manager_(manager)
{
}
void
ivi::settings::technology::handle_request(char const * name,
JsonReader * reader,
response_callback & response)
{
if (name != nullptr) {
if (strcmp(name, "is_enabled") == 0)
get_powered(reader, response);
else if (strcmp(name, "enable") == 0)
set_powered(reader, response);
else if (strcmp(name, "scan") == 0)
scan(reader, response);
else {
response.send_error(
std::string("Unrecognized connman technology request name: ")
+ name);
}
}
}
void
ivi::settings::technology::get_powered(JsonReader * reader,
response_callback & response)
{
bool null = false;
// The value is the second array element.
if (json_reader_read_element(reader, 1)) {
null = json_reader_get_null_value(reader);
}
json_reader_end_element(reader);
if (!null) {
response.send_error(
"connman::technology is_enabled parameter is not null.");
return;
}
unique_ptr<GVariant> const property(
get_property("Powered", G_VARIANT_TYPE_BOOLEAN, response));
if (property != nullptr) {
bool const powered = g_variant_get_boolean(property.get());
response.send_response(
[powered](JsonBuilder * builder)
{
json_builder_set_member_name(builder, "value");
json_builder_add_boolean_value(builder, powered);
});
}
// Error responses handled in get_property() method.
}
void
ivi::settings::technology::set_powered(JsonReader * reader,
response_callback & response)
{
bool enable = false;
// The value is the second array element.
if (json_reader_read_element(reader, 1)) {
enable = json_reader_get_boolean_value(reader);
}
json_reader_end_element(reader);
constexpr char const name[] = "Powered";
GError * error = nullptr;
unique_ptr<GVariant> ret(
connman_.set_property(name,
g_variant_new_boolean(enable),
error));
unique_ptr<GError> safe_error(error);
if (ret != nullptr) {
// Nothing to add to successful response.
response.send_response(
[](JsonBuilder * /* builder */) {});
} else if (error != nullptr) {
response.send_error(
std::string("Unable to set connman::technology powered state: ")
+ error->message);
} else {
response.send_error(
"Malformed connman::technology enable request value.");
}
}
void
ivi::settings::technology::scan(JsonReader * reader,
response_callback & response)
{
bool null = false;
// The value is the second array element.
if (json_reader_read_element(reader, 1)) {
null = json_reader_get_null_value(reader);
}
json_reader_end_element(reader);
if (!null) {
response.send_error(
"connman::technology scan parameter is not null.");
return;
}
// The scan could take a while.
constexpr gint const timeout = 10000; // milliseconds
GError * error = nullptr;
unique_ptr<GVariant> const ret(
g_dbus_proxy_call_sync(connman_.proxy(),
"Scan",
nullptr, // No parameters
G_DBUS_CALL_FLAGS_NONE,
timeout,
nullptr, // Not cancellable
&error));
unique_ptr<GError> safe_error(error);
if (ret != nullptr) {
manager_.get_services(response);
} else if (error != nullptr) {
response.send_error(
std::string("Unable to scan connman::technology: ")
+ error->message);
} else {
response.send_error(
"Malformed connman::technology scan request value.");
}
}
GVariant *
ivi::settings::technology::get_property(char const * name,
GVariantType const * type,
response_callback & response)
{
GError * error = nullptr;
std::string tech(connman_.object_path());
auto const n = tech.rfind('/');
if (n == std::string::npos) {
response.send_error(
"Unable to determine Connman technology. Malformed object path.");
return nullptr;
}
tech = tech.substr(n);
unique_ptr<GVariant> const properties(
manager_.get_properties(tech.c_str(), error));
unique_ptr<GError> safe_error(error);
unique_ptr<GVariant> property;
if (properties != nullptr) {
property.reset(
g_variant_lookup_value(properties.get(), name, type));
if (property == nullptr) {
response.send_error(
"Internal " + tech
+ "error: \"" + name + "\" property lookup failed.");
}
} else if (error != nullptr) {
response.send_error(
"Unable to get " + tech + "properties: "
+ error->message);
} else {
// This scenario will occur if the technology doesn't exist on
// the platform. For example, attempting to retrieve the wifi
// "Powered" property on a platform without supported hardware
// will result in this error.
response.send_error(
"Connman technology properties are not available.");
}
return property.release();
}
// Local Variables:
// mode:c++
// c-basic-offset:2
// indent-tabs-mode: nil
// End:
|
