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26a31c7efb
This patch adds a new "accept" promise that allows you to call accept() on an already listening socket. This lets programs set up a socket for for listening and then dropping "inet" and/or "unix" so that only incoming (and existing) connections are allowed from that point on. No new outgoing connections or listening server sockets can be created. In addition to accept() it also allows getsockopt() with SOL_SOCKET and SO_PEERCRED, which is used to find the PID/UID/GID of the socket peer. This is used by our IPC library when creating shared buffers that should only be accessible to a specific peer process. This allows us to drop "unix" in WindowServer and LookupServer. :^) It also makes the debugging/introspection RPC sockets in CEventLoop based programs work again.
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
#include <LibAudio/AClientConnection.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GPainter.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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class AudioWidget final : public GWidget {
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C_OBJECT(AudioWidget)
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public:
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AudioWidget()
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: GWidget(nullptr)
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{
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m_audio_client = make<AClientConnection>();
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m_audio_client->on_muted_state_change = [this](bool muted) {
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if (m_audio_muted == muted)
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return;
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m_audio_muted = muted;
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update();
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};
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m_unmuted_bitmap = GraphicsBitmap::load_from_file("/res/icons/audio-unmuted.png");
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m_muted_bitmap = GraphicsBitmap::load_from_file("/res/icons/audio-muted.png");
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}
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virtual ~AudioWidget() override {}
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private:
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virtual void mousedown_event(GMouseEvent& event) override
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{
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if (event.button() != GMouseButton::Left)
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return;
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m_audio_client->set_muted(!m_audio_muted);
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update();
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}
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virtual void paint_event(GPaintEvent& event) override
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{
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GPainter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.clear_rect(event.rect(), Color::from_rgba(0));
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auto& audio_bitmap = m_audio_muted ? *m_muted_bitmap : *m_unmuted_bitmap;
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painter.blit({}, audio_bitmap, audio_bitmap.rect());
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}
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OwnPtr<AClientConnection> m_audio_client;
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RefPtr<GraphicsBitmap> m_muted_bitmap;
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RefPtr<GraphicsBitmap> m_unmuted_bitmap;
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bool m_audio_muted { false };
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};
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int main(int argc, char** argv)
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{
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if (pledge("stdio shared_buffer accept rpath unix cpath fattr", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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GApplication app(argc, argv);
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if (pledge("stdio shared_buffer accept rpath unix", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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auto window = GWindow::construct();
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window->set_has_alpha_channel(true);
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window->set_window_type(GWindowType::MenuApplet);
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window->resize(12, 16);
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auto widget = AudioWidget::construct();
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window->set_main_widget(widget);
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window->show();
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if (pledge("stdio shared_buffer accept rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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return app.exec();
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}
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