102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
// Copyright 2016 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "libwebserv/binder_server.h"
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#include <utils/String16.h>
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#include "libwebserv/binder_constants.h"
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#include <string>
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#include <vector>
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using android::String16;
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using android::sp;
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using android::IBinder;
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using std::string;
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using std::vector;
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namespace libwebserv {
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BinderServer::BinderServer(brillo::MessageLoop* message_loop,
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const base::Closure& on_server_online,
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const base::Closure& on_server_offline,
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android::BinderWrapper* binder_wrapper)
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: message_loop_{message_loop},
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on_server_online_{on_server_online},
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on_server_offline_{on_server_offline},
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binder_wrapper_{binder_wrapper} {
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message_loop_->PostTask(FROM_HERE,
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base::Bind(&BinderServer::TryConnecting,
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weak_ptr_factory_.GetWeakPtr()));
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}
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void BinderServer::TryConnecting() {
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ClearLocalState();
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android::sp<android::IBinder> binder = binder_wrapper_->GetService(
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libwebserv::kWebserverBinderServiceName);
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if (!binder.get()) {
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LOG(INFO) << "Webservd has not registered with service manager.";
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} else if (!BuildLocalState(binder)) {
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ClearLocalState();
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} else {
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// Got a binder, built up appropriate local state, our job is done.
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return;
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}
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message_loop_->PostDelayedTask(FROM_HERE,
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base::Bind(&BinderServer::TryConnecting,
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weak_ptr_factory_.GetWeakPtr()),
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base::TimeDelta::FromSeconds(1));
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}
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void BinderServer::ClearLocalState() {
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// Remove all references to remote protocol handlers from our local wrappers.
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// TODO(wiley) Define this method
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//for (auto& local_handler: local_protocol_handlers_) {
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// local_handler.second->ResetRemoteProtocolHandlers();
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//}
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remote_server_.clear();
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}
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bool BinderServer::BuildLocalState(android::sp<android::IBinder> server) {
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remote_server_ = android::interface_cast<RemoteServer>(server);
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vector<sp<IBinder>> remote_raw_binders;
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if (!remote_server_->GetProtocolHandlers(&remote_raw_binders).isOk()) {
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// Possibly the server died, this is not necessarily an error.
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LOG(INFO) << "Webservd failed to tell us about protocol handlers.";
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return false;
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}
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// Tell the local wrappers about the remote handlers that exist now.
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for (auto& raw_binder: remote_raw_binders) {
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sp<RemoteProtocolHandler> remote_handler =
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android::interface_cast<RemoteProtocolHandler>(raw_binder);
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String16 name;
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if (!remote_handler->GetName(&name).isOk()) {
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LOG(INFO) << "Remote handler could not report its name.";
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return false;
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}
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// TODO(wiley) Look for a BinderPHGroup by that name in local_handlers_
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// Create a new BinderPHGroup if necessary
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// Add it to the map under |name|
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// Update |it| appropriately
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// Tell |it| about |remote_handler|
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}
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return true;
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}
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} // namespace libwebserv
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