Implement simple app database which maintains app information at runtime

This helps us to collect information about an app (title, ..) we can
reuse for certain other things like window construction.

android/appmgr/src/org/anbox/appmgr/PlatformService.java

@@ -116,7 +116,12 @@ public void sendApplicationListUpdate() {
             if (icon == null)
                 continue;
 
-            data.writeString(appInfo.name);
+            String name = appInfo.name;
+            CharSequence label = appInfo.loadLabel(mPm);
+            if (label != null)
+                name = label.toString();
+
+            data.writeString(name);
             data.writeString(appInfo.packageName);
 
             data.writeString(launchIntent.getAction());

src/CMakeLists.txt

@@ -60,7 +60,6 @@ set(SOURCES
     anbox/daemon.cpp
     anbox/config.cpp
     anbox/not_reachable.cpp
-    anbox/application_manager.h
 
     anbox/android/intent.cpp
 
@@ -187,6 +186,7 @@ set(SOURCES
     anbox/dbus/stub/application_manager.cpp
 
     anbox/application/launcher_storage.cpp
+    anbox/application/database.cpp
 
     anbox/cmds/version.cpp
     anbox/cmds/session_manager.cpp

src/anbox/application/database.cpp

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 Simon Fels <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "anbox/application/database.h"
+#include "anbox/application/launcher_storage.h"
+#include "anbox/config.h"
+#include "anbox/logger.h"
+
+namespace anbox {
+namespace application {
+const Database::Item Database::Unknown{};
+
+Database::Database() :
+  storage_(std::make_shared<LauncherStorage>(SystemConfiguration::instance().application_item_dir())) {
+  storage_->reset();
+}
+
+Database::~Database() {}
+
+void Database::store_or_update(const Item &item) {
+  storage_->add_or_update(item);
+  items_[item.package] = item;
+
+  // We don't need to store the icon data anymore at this point as the
+  // launcher is already stored it on the disk.
+  items_[item.package].icon.clear();
+}
+
+void Database::remove(const Item &item) {
+  auto iter = items_.find(item.package);
+  if (iter == items_.end())
+    return;
+  storage_->remove(item);
+  items_.erase(iter);
+}
+
+const Database::Item& Database::find_by_package(const std::string &package) const {
+  auto iter = items_.find(package);
+  if (iter == items_.end())
+    return Unknown;
+  return iter->second;
+}
+}  // namespace application
+}  // namespace anbox

src/anbox/application/database.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 Simon Fels <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ANBOX_APPLICATION_DATABASE_H_
+#define ANBOX_APPLICATION_DATABASE_H_
+
+#include "anbox/android/intent.h"
+
+#include <string>
+#include <map>
+#include <memory>
+
+namespace anbox {
+namespace application {
+class LauncherStorage;
+class Database {
+ public:
+  struct Item {
+    std::string name;
+    std::string package;
+    android::Intent launch_intent;
+    std::vector<char> icon;
+
+    bool valid() const { return package.length() > 0; }
+  };
+
+  static const Item Unknown;
+
+  Database();
+  ~Database();
+
+  void store_or_update(const Item &item);
+  void remove(const Item &item);
+
+  const Item& find_by_package(const std::string &package) const;
+
+ private:
+  std::shared_ptr<LauncherStorage> storage_;
+  std::map<std::string,Item> items_;
+};
+}  // namespace application
+}  // namespace anbox
+
+#endif

src/anbox/application/launcher_storage.cpp

@@ -33,18 +33,14 @@ constexpr const char *snap_exe_path{"/snap/bin/anbox"};
 
 namespace anbox {
 namespace application {
-LauncherStorage::LauncherStorage(const fs::path &path,
-                                 const boost::filesystem::path &icon_path) : path_(path), icon_path_(icon_path) {
-}
+LauncherStorage::LauncherStorage(const fs::path &path) :
+  path_(path) {}
 
 LauncherStorage::~LauncherStorage() {}
 
 void LauncherStorage::reset() {
   if (fs::exists(path_))
     fs::remove_all(path_);
-
-  if (fs::exists(icon_path_))
-    fs::remove_all(icon_path_);
 }
 
 std::string LauncherStorage::clean_package_name(const std::string &package_name) {
@@ -58,12 +54,11 @@ fs::path LauncherStorage::path_for_item(const std::string &package_name) {
 }
 
 fs::path LauncherStorage::path_for_item_icon(const std::string &package_name) {
-  return icon_path_ / utils::string_format("anbox-%s.png", package_name);
+  return path_ / utils::string_format("anbox-%s.png", package_name);
 }
 
-void LauncherStorage::add_or_update(const Item &item) {
+void LauncherStorage::add_or_update(const Database::Item &item) {
   if (!fs::exists(path_)) fs::create_directories(path_);
-  if (!fs::exists(icon_path_)) fs::create_directories(icon_path_);
 
   auto package_name = item.package;
   std::replace(package_name.begin(), package_name.end(), '.', '-');
@@ -92,7 +87,7 @@ void LauncherStorage::add_or_update(const Item &item) {
   const auto item_icon_path = path_for_item_icon(package_name);
   if (auto desktop_item = std::ofstream(path_for_item(package_name).string())) {
     desktop_item << "[Desktop Entry]" << std::endl
-                 << "Name=" << item.package << std::endl
+                 << "Name=" << item.name << std::endl
                  << "Exec=" << exec << std::endl
                  << "Terminal=false" << std::endl
                  << "Type=Application" << std::endl
@@ -107,7 +102,7 @@ void LauncherStorage::add_or_update(const Item &item) {
     BOOST_THROW_EXCEPTION(std::runtime_error("Failed to write icon"));
 }
 
-void LauncherStorage::remove(const Item &item) {
+void LauncherStorage::remove(const Database::Item &item) {
   auto package_name = clean_package_name(item.package);
 
   const auto item_path = path_for_item(package_name);

src/anbox/application/launcher_storage.h

@@ -18,6 +18,7 @@
 #ifndef ANBOX_APPLICATION_LAUNCHER_STORAGE_H_
 #define ANBOX_APPLICATION_LAUNCHER_STORAGE_H_
 
+#include "anbox/application/database.h"
 #include "anbox/android/intent.h"
 
 #include <string>
@@ -29,28 +30,19 @@ namespace anbox {
 namespace application {
 class LauncherStorage {
  public:
-  LauncherStorage(const boost::filesystem::path &path,
-                  const boost::filesystem::path &icon_path);
+  LauncherStorage(const boost::filesystem::path &path);
   ~LauncherStorage();
 
-  struct Item {
-    std::string name;
-    std::string package;
-    android::Intent launch_intent;
-    std::vector<char> icon;
-  };
-
   void reset();
-  void add_or_update(const Item &item);
-  void remove(const Item &item);
+  void add_or_update(const Database::Item &item);
+  void remove(const Database::Item &item);
 
  private:
   std::string clean_package_name(const std::string &package_name);
   boost::filesystem::path path_for_item(const std::string &package_name);
   boost::filesystem::path path_for_item_icon(const std::string &package_name);
 
   boost::filesystem::path path_;
-  boost::filesystem::path icon_path_;
 };
 }  // namespace application
 }  // namespace anbox

src/anbox/bridge/platform_api_skeleton.cpp

@@ -16,7 +16,7 @@
  */
 
 #include "anbox/bridge/platform_api_skeleton.h"
-#include "anbox/application/launcher_storage.h"
+#include "anbox/application/database.h"
 #include "anbox/platform/policy.h"
 #include "anbox/wm/manager.h"
 #include "anbox/wm/window_state.h"
@@ -30,11 +30,11 @@ PlatformApiSkeleton::PlatformApiSkeleton(
     const std::shared_ptr<rpc::PendingCallCache> &pending_calls,
     const std::shared_ptr<platform::Policy> &platform_policy,
     const std::shared_ptr<wm::Manager> &window_manager,
-    const std::shared_ptr<application::LauncherStorage> &launcher_storage)
+    const std::shared_ptr<application::Database> &app_db)
     : pending_calls_(pending_calls),
       platform_policy_(platform_policy),
       window_manager_(window_manager),
-      launcher_storage_(launcher_storage) {}
+      app_db_(app_db) {}
 
 PlatformApiSkeleton::~PlatformApiSkeleton() {}
 
@@ -62,10 +62,7 @@ void PlatformApiSkeleton::get_clipboard_data(anbox::protobuf::rpc::Void const *r
   done->Run();
 }
 
-void PlatformApiSkeleton::handle_boot_finished_event(const anbox::protobuf::bridge::BootFinishedEvent &event) {
-  if (event.first_boot_done())
-    launcher_storage_->reset();
-
+void PlatformApiSkeleton::handle_boot_finished_event(const anbox::protobuf::bridge::BootFinishedEvent&) {
   if (boot_finished_handler_)
     boot_finished_handler_();
 }
@@ -99,19 +96,19 @@ void PlatformApiSkeleton::handle_window_state_update_event(const anbox::protobuf
 
 void PlatformApiSkeleton::handle_application_list_update_event(const anbox::protobuf::bridge::ApplicationListUpdateEvent &event) {
   for (int n = 0; n < event.removed_applications_size(); n++) {
-    application::LauncherStorage::Item item;
+    application::Database::Item item;
 
     const auto app = event.removed_applications(n);
     item.package = app.package();
 
     if (item.package.empty())
       continue;
 
-    launcher_storage_->remove(item);
+    app_db_->remove(item);
   }
 
   for (int n = 0; n < event.applications_size(); n++) {
-    application::LauncherStorage::Item item;
+    application::Database::Item item;
 
     const auto app = event.applications(n);
     item.name = app.name();
@@ -132,7 +129,7 @@ void PlatformApiSkeleton::handle_application_list_update_event(const anbox::prot
     if (item.package.empty())
       continue;
 
-    launcher_storage_->add_or_update(item);
+    app_db_->store_or_update(item);
   }
 }
 

src/anbox/bridge/platform_api_skeleton.h

@@ -48,7 +48,7 @@ namespace wm {
 class Manager;
 }  // namespace wm
 namespace application {
-class LauncherStorage;
+class Database;
 }  // namespace application
 namespace bridge {
 class PlatformApiSkeleton {
@@ -57,7 +57,7 @@ class PlatformApiSkeleton {
       const std::shared_ptr<rpc::PendingCallCache> &pending_calls,
       const std::shared_ptr<platform::Policy> &platform_policy,
       const std::shared_ptr<wm::Manager> &window_manager,
-      const std::shared_ptr<application::LauncherStorage> &launcher_storage);
+      const std::shared_ptr<application::Database> &app_db);
   virtual ~PlatformApiSkeleton();
 
   void set_clipboard_data(anbox::protobuf::bridge::ClipboardData const *request,
@@ -80,7 +80,7 @@ class PlatformApiSkeleton {
   std::shared_ptr<rpc::PendingCallCache> pending_calls_;
   std::shared_ptr<platform::Policy> platform_policy_;
   std::shared_ptr<wm::Manager> window_manager_;
-  std::shared_ptr<application::LauncherStorage> launcher_storage_;
+  std::shared_ptr<application::Database> app_db_;
   std::function<void()> boot_finished_handler_;
 };
 }  // namespace bridge

src/anbox/cmds/session_manager.cpp

@@ -22,6 +22,7 @@
 #include "core/posix/signal.h"
 
 #include "anbox/application/launcher_storage.h"
+#include "anbox/application/database.h"
 #include "anbox/audio/server.h"
 #include "anbox/bridge/android_api_stub.h"
 #include "anbox/bridge/platform_api_skeleton.h"
@@ -139,11 +140,8 @@ anbox::cmds::SessionManager::SessionManager(const BusFactory &bus_factory)
     // FIXME this needs to be removed and solved differently behind the scenes
     registerDisplayManager(policy);
 
-    auto window_manager = std::make_shared<wm::Manager>(policy);
-
-    auto launcher_storage = std::make_shared<application::LauncherStorage>(
-        xdg::data().home() / "applications" / "anbox",
-        xdg::data().home() / "anbox" / "icons");
+    auto app_db = std::make_shared<application::Database>();
+    auto window_manager = std::make_shared<wm::Manager>(policy, app_db);
 
     auto gl_server = std::make_shared<graphics::GLRendererServer>(
           graphics::GLRendererServer::Config{gles_driver_}, window_manager);
@@ -175,7 +173,7 @@ anbox::cmds::SessionManager::SessionManager(const BusFactory &bus_factory)
               android_api_stub->set_rpc_channel(rpc_channel);
 
               auto server = std::make_shared<bridge::PlatformApiSkeleton>(
-                  pending_calls, policy, window_manager, launcher_storage);
+                  pending_calls, policy, window_manager, app_db);
               server->register_boot_finished_handler([&]() {
                 DEBUG("Android successfully booted");
                 android_api_stub->ready().set(true);

src/anbox/config.cpp

@@ -19,6 +19,7 @@
 #include "anbox/config.h"
 #include "anbox/utils.h"
 
+#include "external/xdg/xdg.h"
 
 #include <cstring>
 
@@ -70,6 +71,11 @@ std::string anbox::SystemConfiguration::input_device_dir() const {
   return dir;
 }
 
+std::string anbox::SystemConfiguration::application_item_dir() const {
+  static auto dir = xdg::data().home() / "applications" / "anbox";
+  return dir.string();
+}
+
 anbox::SystemConfiguration& anbox::SystemConfiguration::instance() {
   static SystemConfiguration config;
   return config;

src/anbox/config.h

@@ -39,6 +39,7 @@ class SystemConfiguration {
   std::string container_config_dir() const;
   std::string container_socket_path() const;
   std::string input_device_dir() const;
+  std::string application_item_dir() const;
 
  protected:
   SystemConfiguration() = default;