2012-10-24 00:55:44 +04:00
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#include "remote.hh"
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2013-03-12 21:53:18 +04:00
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#include "buffer_manager.hh"
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2015-06-06 13:54:48 +03:00
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#include "buffer_utils.hh"
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2013-04-09 22:05:40 +04:00
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#include "client_manager.hh"
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2013-03-12 21:53:18 +04:00
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#include "command_manager.hh"
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2013-04-09 22:05:40 +04:00
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#include "display_buffer.hh"
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#include "event_manager.hh"
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2015-08-23 16:13:46 +03:00
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#include "file.hh"
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2015-09-16 21:04:19 +03:00
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#include "id_map.hh"
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2012-10-24 00:55:44 +04:00
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#include <sys/types.h>
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#include <sys/socket.h>
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2013-03-13 22:59:39 +04:00
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#include <sys/un.h>
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#include <sys/wait.h>
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#include <unistd.h>
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2015-09-15 15:32:26 +03:00
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#include <pwd.h>
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2013-03-13 22:59:39 +04:00
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#include <fcntl.h>
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2012-10-24 00:55:44 +04:00
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namespace Kakoune
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{
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enum class RemoteUIMsg
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{
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MenuShow,
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MenuSelect,
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MenuHide,
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2012-12-14 22:04:34 +04:00
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InfoShow,
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InfoHide,
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2014-04-15 22:19:44 +04:00
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Draw,
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2015-06-17 23:28:02 +03:00
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DrawStatus,
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2014-11-11 02:29:16 +03:00
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Refresh,
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SetOptions
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2012-10-24 00:55:44 +04:00
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};
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2012-10-26 15:45:32 +04:00
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struct socket_error{};
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2012-10-24 00:55:44 +04:00
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class Message
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{
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public:
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Message(int sock) : m_socket(sock) {}
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2014-10-03 16:39:13 +04:00
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~Message() noexcept(false)
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2012-10-26 15:45:32 +04:00
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{
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if (m_stream.size() == 0)
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return;
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int res = ::write(m_socket, m_stream.data(), m_stream.size());
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if (res == 0)
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throw peer_disconnected{};
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}
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2012-10-24 00:55:44 +04:00
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void write(const char* val, size_t size)
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{
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m_stream.insert(m_stream.end(), val, val + size);
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}
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2012-12-10 21:55:11 +04:00
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template<typename T>
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void write(const T& val)
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{
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write((const char*)&val, sizeof(val));
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2013-04-03 21:20:38 +04:00
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}
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2012-10-24 00:55:44 +04:00
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2014-04-30 22:39:52 +04:00
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void write(StringView str)
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2012-12-10 21:55:11 +04:00
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{
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write(str.length());
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2014-04-30 22:39:52 +04:00
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write(str.data(), (int)str.length());
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2012-12-10 21:55:11 +04:00
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};
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2012-10-24 00:55:44 +04:00
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2014-04-30 22:39:52 +04:00
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void write(const String& str)
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{
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write(StringView{str});
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}
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2012-12-10 21:55:11 +04:00
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template<typename T>
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2015-03-09 16:48:41 +03:00
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void write(ConstArrayView<T> view)
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2012-12-10 21:55:11 +04:00
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{
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write<uint32_t>(view.size());
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for (auto& val : view)
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write(val);
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2013-04-03 21:20:38 +04:00
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}
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2012-10-24 00:55:44 +04:00
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2015-01-14 22:16:32 +03:00
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template<typename T, MemoryDomain domain>
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void write(const Vector<T, domain>& vec)
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2012-12-10 21:55:11 +04:00
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{
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2015-03-09 16:48:41 +03:00
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write(ConstArrayView<T>(vec));
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2012-12-10 21:55:11 +04:00
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}
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2012-10-24 00:55:44 +04:00
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2015-09-16 21:04:19 +03:00
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template<typename Val, MemoryDomain domain>
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void write(const IdMap<Val, domain>& map)
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2014-04-08 00:25:44 +04:00
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{
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write<uint32_t>(map.size());
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for (auto& val : map)
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{
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2015-09-16 21:57:57 +03:00
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write(val.key);
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write(val.value);
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2014-04-08 00:25:44 +04:00
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}
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}
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2013-07-26 02:26:43 +04:00
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void write(Color color)
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2013-05-07 20:52:23 +04:00
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{
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write(color.color);
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2015-04-25 12:47:39 +03:00
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if (color.color == Color::RGB)
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2013-05-07 20:52:23 +04:00
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{
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write(color.r);
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write(color.g);
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write(color.b);
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}
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}
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2012-12-10 21:55:11 +04:00
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void write(const DisplayAtom& atom)
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{
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2013-07-24 16:55:57 +04:00
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write(atom.content());
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2014-07-11 03:27:04 +04:00
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write(atom.face);
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2012-12-10 21:55:11 +04:00
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}
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2012-10-24 00:55:44 +04:00
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2012-12-10 21:55:11 +04:00
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void write(const DisplayLine& line)
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{
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write(line.atoms());
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}
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2012-10-24 00:55:44 +04:00
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2012-12-10 21:55:11 +04:00
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void write(const DisplayBuffer& display_buffer)
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{
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write(display_buffer.lines());
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}
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2012-10-24 00:55:44 +04:00
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2012-12-10 21:55:11 +04:00
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private:
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2015-01-12 16:58:41 +03:00
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Vector<char> m_stream;
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2012-12-10 21:55:11 +04:00
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int m_socket;
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};
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2012-10-24 00:55:44 +04:00
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2012-10-26 15:45:32 +04:00
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void read(int socket, char* buffer, size_t size)
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{
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2012-11-19 22:07:32 +04:00
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while (size)
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{
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int res = ::read(socket, buffer, size);
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if (res == 0)
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throw peer_disconnected{};
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if (res < 0)
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throw socket_error{};
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buffer += res;
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size -= res;
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}
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2012-10-26 15:45:32 +04:00
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}
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2012-10-24 00:55:44 +04:00
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template<typename T>
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T read(int socket)
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{
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2013-07-31 02:32:51 +04:00
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union U
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2013-07-26 03:30:01 +04:00
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{
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T object;
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2014-11-05 16:50:06 +03:00
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alignas(T) char data[sizeof(T)];
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2013-07-31 02:32:51 +04:00
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U() {}
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~U() { object.~T(); }
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} u;
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read(socket, u.data, sizeof(T));
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return u.object;
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2013-04-03 21:20:38 +04:00
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}
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2012-10-24 00:55:44 +04:00
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template<>
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String read<String>(int socket)
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{
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ByteCount length = read<ByteCount>(socket);
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2014-04-24 01:21:04 +04:00
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String res;
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if (length > 0)
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{
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res.resize((int)length);
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2014-08-11 22:40:35 +04:00
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read(socket, &res[0_byte], (int)length);
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2014-04-24 01:21:04 +04:00
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}
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return res;
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2013-04-03 21:20:38 +04:00
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}
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2012-10-24 00:55:44 +04:00
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template<typename T>
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2015-01-12 16:58:41 +03:00
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Vector<T> read_vector(int socket)
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2012-10-24 00:55:44 +04:00
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{
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uint32_t size = read<uint32_t>(socket);
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2015-01-12 16:58:41 +03:00
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Vector<T> res;
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2012-10-24 00:55:44 +04:00
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res.reserve(size);
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while (size--)
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res.push_back(read<T>(socket));
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2013-05-07 20:52:23 +04:00
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return res;
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}
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template<>
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Color read<Color>(int socket)
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{
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Color res;
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2015-04-25 12:47:39 +03:00
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res.color = read<Color::NamedColor>(socket);
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if (res.color == Color::RGB)
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2013-05-07 20:52:23 +04:00
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{
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res.r = read<unsigned char>(socket);
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res.g = read<unsigned char>(socket);
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res.b = read<unsigned char>(socket);
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}
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2012-10-24 00:55:44 +04:00
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return res;
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2013-04-03 21:20:38 +04:00
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}
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2012-10-24 00:55:44 +04:00
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template<>
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DisplayAtom read<DisplayAtom>(int socket)
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{
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2013-07-24 16:55:57 +04:00
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DisplayAtom atom(read<String>(socket));
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2014-07-11 03:27:04 +04:00
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atom.face = read<Face>(socket);
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2012-10-24 00:55:44 +04:00
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return atom;
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}
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template<>
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DisplayLine read<DisplayLine>(int socket)
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{
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2013-07-23 22:11:26 +04:00
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return DisplayLine(read_vector<DisplayAtom>(socket));
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2012-10-24 00:55:44 +04:00
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}
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template<>
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DisplayBuffer read<DisplayBuffer>(int socket)
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{
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DisplayBuffer db;
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db.lines() = read_vector<DisplayLine>(socket);
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return db;
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}
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2015-09-16 21:04:19 +03:00
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template<typename Val, MemoryDomain domain>
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IdMap<Val, domain> read_idmap(int socket)
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2014-04-08 00:25:44 +04:00
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{
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uint32_t size = read<uint32_t>(socket);
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2015-09-16 21:04:19 +03:00
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IdMap<Val, domain> res;
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res.reserve(size);
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2014-04-08 00:25:44 +04:00
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while (size--)
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{
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2015-09-16 21:04:19 +03:00
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auto key = read<String>(socket);
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2014-04-08 00:25:44 +04:00
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auto val = read<Val>(socket);
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2015-09-16 21:04:19 +03:00
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res.append({std::move(key), std::move(val)});
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2014-04-08 00:25:44 +04:00
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}
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return res;
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}
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2012-12-19 00:20:36 +04:00
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class RemoteUI : public UserInterface
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{
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public:
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RemoteUI(int socket);
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~RemoteUI();
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2015-10-05 03:25:23 +03:00
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void menu_show(ConstArrayView<DisplayLine> choices,
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2014-07-11 03:27:04 +04:00
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CharCoord anchor, Face fg, Face bg,
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2013-04-04 15:53:47 +04:00
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MenuStyle style) override;
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2012-12-19 00:20:36 +04:00
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void menu_select(int selected) override;
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void menu_hide() override;
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2014-04-30 22:39:52 +04:00
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void info_show(StringView title, StringView content,
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2014-07-11 03:27:04 +04:00
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CharCoord anchor, Face face,
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2014-11-08 20:59:38 +03:00
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InfoStyle style) override;
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2012-12-19 00:20:36 +04:00
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void info_hide() override;
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void draw(const DisplayBuffer& display_buffer,
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2015-06-17 23:28:02 +03:00
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const Face& default_face) override;
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void draw_status(const DisplayLine& status_line,
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const DisplayLine& mode_line,
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const Face& default_face) override;
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2012-12-19 00:20:36 +04:00
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2014-04-15 22:19:44 +04:00
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void refresh() override;
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2012-12-19 00:20:36 +04:00
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bool is_key_available() override;
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Key get_key() override;
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2014-05-07 22:51:01 +04:00
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CharCoord dimensions() override;
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2012-12-19 00:20:36 +04:00
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2013-01-11 22:17:21 +04:00
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void set_input_callback(InputCallback callback) override;
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2014-11-11 02:29:16 +03:00
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void set_ui_options(const Options& options) override;
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2012-12-19 00:20:36 +04:00
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private:
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2013-01-11 22:17:21 +04:00
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FDWatcher m_socket_watcher;
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2014-05-07 22:51:01 +04:00
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CharCoord m_dimensions;
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2013-01-11 22:17:21 +04:00
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InputCallback m_input_callback;
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2012-12-19 00:20:36 +04:00
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};
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2012-11-19 22:06:32 +04:00
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RemoteUI::RemoteUI(int socket)
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2014-11-25 04:00:18 +03:00
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: m_socket_watcher(socket, [this](FDWatcher&, EventMode mode) {
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2014-04-05 15:04:37 +04:00
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if (m_input_callback)
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2014-11-25 04:00:18 +03:00
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m_input_callback(mode);
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2014-04-05 15:04:37 +04:00
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})
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2012-11-19 22:06:32 +04:00
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{
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2015-06-06 13:54:48 +03:00
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write_to_debug_buffer(format("remote client connected: {}", m_socket_watcher.fd()));
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2012-11-19 22:06:32 +04:00
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}
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RemoteUI::~RemoteUI()
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{
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2015-06-06 13:54:48 +03:00
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write_to_debug_buffer(format("remote client disconnected: {}", m_socket_watcher.fd()));
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2014-12-03 16:56:02 +03:00
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m_socket_watcher.close_fd();
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2012-11-19 22:06:32 +04:00
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}
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2015-10-05 03:25:23 +03:00
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void RemoteUI::menu_show(ConstArrayView<DisplayLine> choices,
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2014-07-11 03:27:04 +04:00
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CharCoord anchor, Face fg, Face bg,
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2013-04-04 15:53:47 +04:00
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MenuStyle style)
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2012-10-24 00:55:44 +04:00
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{
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2013-01-11 22:17:21 +04:00
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Message msg(m_socket_watcher.fd());
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2012-12-10 21:55:11 +04:00
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msg.write(RemoteUIMsg::MenuShow);
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msg.write(choices);
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msg.write(anchor);
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2013-04-04 15:53:47 +04:00
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msg.write(fg);
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msg.write(bg);
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2012-12-10 21:55:11 +04:00
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msg.write(style);
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2012-10-24 00:55:44 +04:00
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}
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void RemoteUI::menu_select(int selected)
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{
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2013-01-11 22:17:21 +04:00
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Message msg(m_socket_watcher.fd());
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2012-12-10 21:55:11 +04:00
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msg.write(RemoteUIMsg::MenuSelect);
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msg.write(selected);
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2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
void RemoteUI::menu_hide()
|
|
|
|
{
|
2013-01-11 22:17:21 +04:00
|
|
|
Message msg(m_socket_watcher.fd());
|
2012-12-10 21:55:11 +04:00
|
|
|
msg.write(RemoteUIMsg::MenuHide);
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
|
2014-04-30 22:39:52 +04:00
|
|
|
void RemoteUI::info_show(StringView title, StringView content,
|
2014-07-11 03:27:04 +04:00
|
|
|
CharCoord anchor, Face face,
|
2014-11-08 20:59:38 +03:00
|
|
|
InfoStyle style)
|
2012-12-14 22:04:34 +04:00
|
|
|
{
|
2013-01-11 22:17:21 +04:00
|
|
|
Message msg(m_socket_watcher.fd());
|
2012-12-14 22:04:34 +04:00
|
|
|
msg.write(RemoteUIMsg::InfoShow);
|
2013-10-11 01:51:16 +04:00
|
|
|
msg.write(title);
|
2012-12-14 22:04:34 +04:00
|
|
|
msg.write(content);
|
|
|
|
msg.write(anchor);
|
2014-07-11 03:27:04 +04:00
|
|
|
msg.write(face);
|
2012-12-14 22:04:34 +04:00
|
|
|
msg.write(style);
|
|
|
|
}
|
|
|
|
|
|
|
|
void RemoteUI::info_hide()
|
|
|
|
{
|
2013-01-11 22:17:21 +04:00
|
|
|
Message msg(m_socket_watcher.fd());
|
2012-12-14 22:04:34 +04:00
|
|
|
msg.write(RemoteUIMsg::InfoHide);
|
|
|
|
}
|
|
|
|
|
2012-10-24 00:55:44 +04:00
|
|
|
void RemoteUI::draw(const DisplayBuffer& display_buffer,
|
2015-06-17 23:28:02 +03:00
|
|
|
const Face& default_face)
|
2012-10-24 00:55:44 +04:00
|
|
|
{
|
2013-01-11 22:17:21 +04:00
|
|
|
Message msg(m_socket_watcher.fd());
|
2012-12-10 21:55:11 +04:00
|
|
|
msg.write(RemoteUIMsg::Draw);
|
|
|
|
msg.write(display_buffer);
|
2015-06-17 23:28:02 +03:00
|
|
|
msg.write(default_face);
|
|
|
|
}
|
|
|
|
|
|
|
|
void RemoteUI::draw_status(const DisplayLine& status_line,
|
|
|
|
const DisplayLine& mode_line,
|
|
|
|
const Face& default_face)
|
|
|
|
{
|
|
|
|
Message msg(m_socket_watcher.fd());
|
|
|
|
msg.write(RemoteUIMsg::DrawStatus);
|
2013-09-16 22:15:13 +04:00
|
|
|
msg.write(status_line);
|
2012-12-10 21:55:11 +04:00
|
|
|
msg.write(mode_line);
|
2015-06-17 23:28:02 +03:00
|
|
|
msg.write(default_face);
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
|
2014-04-15 22:19:44 +04:00
|
|
|
void RemoteUI::refresh()
|
|
|
|
{
|
|
|
|
Message msg(m_socket_watcher.fd());
|
|
|
|
msg.write(RemoteUIMsg::Refresh);
|
|
|
|
}
|
|
|
|
|
2014-11-11 02:29:16 +03:00
|
|
|
void RemoteUI::set_ui_options(const Options& options)
|
|
|
|
{
|
|
|
|
Message msg(m_socket_watcher.fd());
|
|
|
|
msg.write(RemoteUIMsg::SetOptions);
|
|
|
|
msg.write(options);
|
|
|
|
}
|
|
|
|
|
2012-10-28 12:26:54 +04:00
|
|
|
bool RemoteUI::is_key_available()
|
|
|
|
{
|
|
|
|
timeval tv;
|
|
|
|
fd_set rfds;
|
|
|
|
|
2013-01-11 22:17:21 +04:00
|
|
|
int sock = m_socket_watcher.fd();
|
2012-10-28 12:26:54 +04:00
|
|
|
FD_ZERO(&rfds);
|
2013-01-11 22:17:21 +04:00
|
|
|
FD_SET(sock, &rfds);
|
2012-10-28 12:26:54 +04:00
|
|
|
|
|
|
|
tv.tv_sec = 0;
|
|
|
|
tv.tv_usec = 0;
|
2013-07-28 18:40:02 +04:00
|
|
|
int res = select(sock+1, &rfds, nullptr, nullptr, &tv);
|
2012-10-28 12:26:54 +04:00
|
|
|
return res == 1;
|
|
|
|
}
|
|
|
|
|
2012-10-24 00:55:44 +04:00
|
|
|
Key RemoteUI::get_key()
|
|
|
|
{
|
2013-08-28 22:19:54 +04:00
|
|
|
try
|
2012-10-25 14:51:01 +04:00
|
|
|
{
|
2013-08-28 22:19:54 +04:00
|
|
|
Key key = read<Key>(m_socket_watcher.fd());
|
2015-08-23 17:18:18 +03:00
|
|
|
if (key.modifiers == Key::Modifiers::Resize)
|
|
|
|
m_dimensions = key.coord();
|
2013-08-28 22:19:54 +04:00
|
|
|
return key;
|
|
|
|
}
|
|
|
|
catch (peer_disconnected&)
|
|
|
|
{
|
2015-10-08 15:43:39 +03:00
|
|
|
throw client_removed{ false };
|
2013-08-28 22:19:54 +04:00
|
|
|
}
|
|
|
|
catch (socket_error&)
|
|
|
|
{
|
2015-06-06 13:54:48 +03:00
|
|
|
write_to_debug_buffer("ungraceful deconnection detected");
|
2015-10-08 15:43:39 +03:00
|
|
|
throw client_removed{ false };
|
2012-10-25 14:51:01 +04:00
|
|
|
}
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
|
2014-05-07 22:51:01 +04:00
|
|
|
CharCoord RemoteUI::dimensions()
|
2012-10-24 00:55:44 +04:00
|
|
|
{
|
|
|
|
return m_dimensions;
|
|
|
|
}
|
|
|
|
|
2013-01-11 22:17:21 +04:00
|
|
|
void RemoteUI::set_input_callback(InputCallback callback)
|
|
|
|
{
|
|
|
|
m_input_callback = std::move(callback);
|
|
|
|
}
|
|
|
|
|
2014-11-06 16:54:18 +03:00
|
|
|
static sockaddr_un session_addr(StringView session)
|
2012-10-25 14:51:01 +04:00
|
|
|
{
|
2014-11-06 16:54:18 +03:00
|
|
|
sockaddr_un addr;
|
|
|
|
addr.sun_family = AF_UNIX;
|
2015-09-15 15:32:26 +03:00
|
|
|
format_to(addr.sun_path, "/tmp/kakoune/{}/{}", getpwuid(geteuid())->pw_name, session);
|
2014-11-06 16:54:18 +03:00
|
|
|
return addr;
|
|
|
|
}
|
2014-11-05 16:57:12 +03:00
|
|
|
|
2014-11-06 16:54:18 +03:00
|
|
|
static int connect_to(StringView session)
|
|
|
|
{
|
2014-11-05 16:57:12 +03:00
|
|
|
int sock = socket(AF_UNIX, SOCK_STREAM, 0);
|
|
|
|
fcntl(sock, F_SETFD, FD_CLOEXEC);
|
2014-11-06 16:54:18 +03:00
|
|
|
sockaddr_un addr = session_addr(session);
|
2014-11-05 16:57:12 +03:00
|
|
|
if (connect(sock, (sockaddr*)&addr, sizeof(addr.sun_path)) == -1)
|
2014-11-06 16:54:18 +03:00
|
|
|
throw connection_failed(addr.sun_path);
|
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
|
|
|
RemoteClient::RemoteClient(StringView session, std::unique_ptr<UserInterface>&& ui,
|
|
|
|
const EnvVarMap& env_vars, StringView init_command)
|
2015-08-23 17:18:18 +03:00
|
|
|
: m_ui(std::move(ui))
|
2014-11-06 16:54:18 +03:00
|
|
|
{
|
|
|
|
int sock = connect_to(session);
|
2014-04-08 00:25:44 +04:00
|
|
|
|
2014-11-05 16:57:12 +03:00
|
|
|
{
|
|
|
|
Message msg(sock);
|
|
|
|
msg.write(init_command.data(), (int)init_command.length());
|
|
|
|
msg.write((char)0);
|
|
|
|
msg.write(env_vars);
|
|
|
|
}
|
2013-01-11 22:17:21 +04:00
|
|
|
|
2014-11-25 04:00:18 +03:00
|
|
|
m_ui->set_input_callback([this](EventMode){ write_next_key(); });
|
2014-11-05 16:57:12 +03:00
|
|
|
|
2014-11-25 04:00:18 +03:00
|
|
|
m_socket_watcher.reset(new FDWatcher{sock, [this](FDWatcher&, EventMode){ process_available_messages(); }});
|
2012-10-25 14:51:01 +04:00
|
|
|
}
|
|
|
|
|
2014-04-15 22:08:47 +04:00
|
|
|
void RemoteClient::process_available_messages()
|
|
|
|
{
|
2014-11-05 16:57:12 +03:00
|
|
|
int socket = m_socket_watcher->fd();
|
2014-04-15 22:08:47 +04:00
|
|
|
timeval tv{ 0, 0 };
|
|
|
|
fd_set rfds;
|
|
|
|
|
|
|
|
do {
|
|
|
|
process_next_message();
|
|
|
|
|
|
|
|
FD_ZERO(&rfds);
|
|
|
|
FD_SET(socket, &rfds);
|
|
|
|
} while (select(socket+1, &rfds, nullptr, nullptr, &tv) == 1);
|
|
|
|
}
|
|
|
|
|
2012-10-24 00:55:44 +04:00
|
|
|
void RemoteClient::process_next_message()
|
|
|
|
{
|
2014-11-05 16:57:12 +03:00
|
|
|
int socket = m_socket_watcher->fd();
|
2013-01-11 21:44:02 +04:00
|
|
|
RemoteUIMsg msg = read<RemoteUIMsg>(socket);
|
2012-10-24 00:55:44 +04:00
|
|
|
switch (msg)
|
|
|
|
{
|
|
|
|
case RemoteUIMsg::MenuShow:
|
|
|
|
{
|
2015-10-05 03:25:23 +03:00
|
|
|
auto choices = read_vector<DisplayLine>(socket);
|
2014-05-07 22:51:01 +04:00
|
|
|
auto anchor = read<CharCoord>(socket);
|
2014-07-11 03:27:04 +04:00
|
|
|
auto fg = read<Face>(socket);
|
|
|
|
auto bg = read<Face>(socket);
|
2013-01-11 21:44:02 +04:00
|
|
|
auto style = read<MenuStyle>(socket);
|
2013-04-04 15:53:47 +04:00
|
|
|
m_ui->menu_show(choices, anchor, fg, bg, style);
|
2013-01-04 21:39:13 +04:00
|
|
|
break;
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
case RemoteUIMsg::MenuSelect:
|
2013-01-11 21:44:02 +04:00
|
|
|
m_ui->menu_select(read<int>(socket));
|
2013-01-04 21:39:13 +04:00
|
|
|
break;
|
2012-10-24 00:55:44 +04:00
|
|
|
case RemoteUIMsg::MenuHide:
|
2013-01-04 21:39:13 +04:00
|
|
|
m_ui->menu_hide();
|
|
|
|
break;
|
2012-12-14 22:04:34 +04:00
|
|
|
case RemoteUIMsg::InfoShow:
|
|
|
|
{
|
2013-10-11 01:51:16 +04:00
|
|
|
auto title = read<String>(socket);
|
|
|
|
auto content = read<String>(socket);
|
2014-05-07 22:51:01 +04:00
|
|
|
auto anchor = read<CharCoord>(socket);
|
2014-07-11 03:27:04 +04:00
|
|
|
auto face = read<Face>(socket);
|
2014-11-08 20:59:38 +03:00
|
|
|
auto style = read<InfoStyle>(socket);
|
2014-07-11 03:27:04 +04:00
|
|
|
m_ui->info_show(title, content, anchor, face, style);
|
2013-01-04 21:39:13 +04:00
|
|
|
break;
|
2012-12-14 22:04:34 +04:00
|
|
|
}
|
|
|
|
case RemoteUIMsg::InfoHide:
|
2013-01-04 21:39:13 +04:00
|
|
|
m_ui->info_hide();
|
|
|
|
break;
|
2012-10-24 00:55:44 +04:00
|
|
|
case RemoteUIMsg::Draw:
|
|
|
|
{
|
2013-04-04 20:50:00 +04:00
|
|
|
auto display_buffer = read<DisplayBuffer>(socket);
|
2015-06-17 23:28:02 +03:00
|
|
|
auto default_face = read<Face>(socket);
|
|
|
|
m_ui->draw(display_buffer, default_face);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case RemoteUIMsg::DrawStatus:
|
|
|
|
{
|
2013-09-16 22:15:13 +04:00
|
|
|
auto status_line = read<DisplayLine>(socket);
|
2013-04-04 20:50:00 +04:00
|
|
|
auto mode_line = read<DisplayLine>(socket);
|
2015-06-17 23:28:02 +03:00
|
|
|
auto default_face = read<Face>(socket);
|
|
|
|
m_ui->draw_status(status_line, mode_line, default_face);
|
2013-01-04 21:39:13 +04:00
|
|
|
break;
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
2014-04-15 22:19:44 +04:00
|
|
|
case RemoteUIMsg::Refresh:
|
|
|
|
m_ui->refresh();
|
|
|
|
break;
|
2014-11-11 02:29:16 +03:00
|
|
|
case RemoteUIMsg::SetOptions:
|
2015-09-16 21:04:19 +03:00
|
|
|
m_ui->set_ui_options(read_idmap<String, MemoryDomain::Options>(socket));
|
2014-11-11 02:29:16 +03:00
|
|
|
break;
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void RemoteClient::write_next_key()
|
|
|
|
{
|
2014-11-05 16:57:12 +03:00
|
|
|
Message msg(m_socket_watcher->fd());
|
2012-12-10 21:46:57 +04:00
|
|
|
// do that before checking dimensions as get_key may
|
|
|
|
// handle a resize event.
|
2012-12-10 21:55:11 +04:00
|
|
|
msg.write(m_ui->get_key());
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|
|
|
|
|
2014-10-20 22:18:38 +04:00
|
|
|
void send_command(StringView session, StringView command)
|
2014-03-02 06:01:09 +04:00
|
|
|
{
|
2014-11-06 16:54:18 +03:00
|
|
|
int sock = connect_to(session);
|
|
|
|
::write(sock, command.data(), (int)command.length());
|
2014-03-02 06:01:09 +04:00
|
|
|
close(sock);
|
|
|
|
}
|
|
|
|
|
2013-03-12 21:53:18 +04:00
|
|
|
|
2013-03-13 22:59:39 +04:00
|
|
|
// A client accepter handle a connection until it closes or a nul byte is
|
|
|
|
// recieved. Everything recieved before is considered to be a command.
|
|
|
|
//
|
|
|
|
// * When a nul byte is recieved, the socket is handed to a new Client along
|
|
|
|
// with the command.
|
|
|
|
// * When the connection is closed, the command is run in an empty context.
|
2014-03-25 13:21:20 +04:00
|
|
|
class Server::Accepter
|
2012-12-19 00:20:36 +04:00
|
|
|
{
|
2013-03-13 22:59:39 +04:00
|
|
|
public:
|
2014-03-25 13:21:20 +04:00
|
|
|
Accepter(int socket)
|
2014-04-05 15:04:37 +04:00
|
|
|
: m_socket_watcher(socket,
|
2014-11-25 04:00:18 +03:00
|
|
|
[this](FDWatcher&, EventMode mode) {
|
|
|
|
if (mode == EventMode::Normal)
|
|
|
|
handle_available_input();
|
|
|
|
})
|
2014-04-05 15:04:37 +04:00
|
|
|
{}
|
2013-03-13 22:59:39 +04:00
|
|
|
|
|
|
|
private:
|
|
|
|
void handle_available_input()
|
2013-03-12 21:53:18 +04:00
|
|
|
{
|
2013-03-13 22:59:39 +04:00
|
|
|
int socket = m_socket_watcher.fd();
|
|
|
|
timeval tv{ 0, 0 };
|
|
|
|
fd_set rfds;
|
|
|
|
do
|
2013-03-12 21:53:18 +04:00
|
|
|
{
|
2013-03-13 22:59:39 +04:00
|
|
|
char c;
|
|
|
|
int res = ::read(socket, &c, 1);
|
|
|
|
if (res <= 0)
|
2013-03-12 21:53:18 +04:00
|
|
|
{
|
2013-03-13 22:59:39 +04:00
|
|
|
if (not m_buffer.empty()) try
|
|
|
|
{
|
2015-04-19 20:47:52 +03:00
|
|
|
Context context{Context::EmptyContextFlag{}};
|
2013-03-13 22:59:39 +04:00
|
|
|
CommandManager::instance().execute(m_buffer, context);
|
|
|
|
}
|
|
|
|
catch (runtime_error& e)
|
|
|
|
{
|
2015-06-06 13:54:48 +03:00
|
|
|
write_to_debug_buffer(format("error running command '{}': {}",
|
2015-06-01 23:15:59 +03:00
|
|
|
m_buffer, e.what()));
|
2013-03-13 22:59:39 +04:00
|
|
|
}
|
2013-04-15 20:55:41 +04:00
|
|
|
catch (client_removed&) {}
|
2013-04-02 16:27:04 +04:00
|
|
|
close(socket);
|
2014-03-25 13:21:20 +04:00
|
|
|
Server::instance().remove_accepter(this);
|
2013-03-13 22:59:39 +04:00
|
|
|
return;
|
2013-03-12 21:53:18 +04:00
|
|
|
}
|
2014-04-05 15:04:37 +04:00
|
|
|
if (c == 0) // end of initial command stream, go to interactive ui
|
2013-03-12 21:53:18 +04:00
|
|
|
{
|
2015-09-16 21:04:19 +03:00
|
|
|
EnvVarMap env_vars = read_idmap<String, MemoryDomain::EnvVars>(socket);
|
2014-04-05 15:04:37 +04:00
|
|
|
std::unique_ptr<UserInterface> ui{new RemoteUI{socket}};
|
|
|
|
ClientManager::instance().create_client(std::move(ui),
|
2014-04-08 00:25:44 +04:00
|
|
|
std::move(env_vars),
|
2014-04-05 15:04:37 +04:00
|
|
|
m_buffer);
|
2014-03-25 13:21:20 +04:00
|
|
|
Server::instance().remove_accepter(this);
|
2013-03-13 22:59:39 +04:00
|
|
|
return;
|
2013-03-12 21:53:18 +04:00
|
|
|
}
|
2013-03-13 22:59:39 +04:00
|
|
|
else
|
|
|
|
m_buffer += c;
|
2012-12-19 00:20:36 +04:00
|
|
|
|
2013-03-13 22:59:39 +04:00
|
|
|
FD_ZERO(&rfds);
|
|
|
|
FD_SET(socket, &rfds);
|
|
|
|
}
|
2013-07-28 18:40:02 +04:00
|
|
|
while (select(socket+1, &rfds, nullptr, nullptr, &tv) == 1);
|
2013-03-12 21:53:18 +04:00
|
|
|
}
|
2013-03-13 22:59:39 +04:00
|
|
|
|
|
|
|
String m_buffer;
|
|
|
|
FDWatcher m_socket_watcher;
|
|
|
|
};
|
|
|
|
|
2013-09-25 22:04:52 +04:00
|
|
|
Server::Server(String session_name)
|
|
|
|
: m_session{std::move(session_name)}
|
2013-03-13 22:59:39 +04:00
|
|
|
{
|
|
|
|
int listen_sock = socket(AF_UNIX, SOCK_STREAM, 0);
|
|
|
|
fcntl(listen_sock, F_SETFD, FD_CLOEXEC);
|
2014-11-06 16:54:18 +03:00
|
|
|
sockaddr_un addr = session_addr(m_session);
|
2013-03-13 22:59:39 +04:00
|
|
|
|
2015-08-23 16:13:46 +03:00
|
|
|
make_directory(split_path(addr.sun_path).first);
|
|
|
|
|
2013-03-13 22:59:39 +04:00
|
|
|
if (bind(listen_sock, (sockaddr*) &addr, sizeof(sockaddr_un)) == -1)
|
2015-06-01 21:06:35 +03:00
|
|
|
throw runtime_error(format("unable to bind listen socket '{}'", addr.sun_path));
|
2013-03-13 22:59:39 +04:00
|
|
|
|
|
|
|
if (listen(listen_sock, 4) == -1)
|
2015-06-01 21:06:35 +03:00
|
|
|
throw runtime_error(format("unable to listen on socket '{}'", addr.sun_path));
|
2013-03-13 22:59:39 +04:00
|
|
|
|
2014-11-25 04:00:18 +03:00
|
|
|
auto accepter = [this](FDWatcher& watcher, EventMode mode) {
|
2013-03-13 22:59:39 +04:00
|
|
|
sockaddr_un client_addr;
|
|
|
|
socklen_t client_addr_len = sizeof(sockaddr_un);
|
2014-04-05 15:04:37 +04:00
|
|
|
int sock = accept(watcher.fd(), (sockaddr*) &client_addr,
|
|
|
|
&client_addr_len);
|
2013-03-13 22:59:39 +04:00
|
|
|
if (sock == -1)
|
|
|
|
throw runtime_error("accept failed");
|
|
|
|
fcntl(sock, F_SETFD, FD_CLOEXEC);
|
|
|
|
|
2014-03-25 13:21:20 +04:00
|
|
|
m_accepters.emplace_back(new Accepter{sock});
|
2013-03-13 22:59:39 +04:00
|
|
|
};
|
|
|
|
m_listener.reset(new FDWatcher{listen_sock, accepter});
|
|
|
|
}
|
|
|
|
|
2014-01-27 23:53:17 +04:00
|
|
|
void Server::close_session()
|
2013-03-13 22:59:39 +04:00
|
|
|
{
|
2015-08-23 16:13:46 +03:00
|
|
|
char socket_file[128];
|
2015-09-15 15:32:26 +03:00
|
|
|
format_to(socket_file, "/tmp/kakoune/{}/{}", getpwuid(geteuid())->pw_name, m_session);
|
2015-08-23 16:13:46 +03:00
|
|
|
unlink(socket_file);
|
2014-12-03 16:56:02 +03:00
|
|
|
m_listener->close_fd();
|
2014-01-27 23:53:17 +04:00
|
|
|
m_listener.reset();
|
|
|
|
}
|
|
|
|
|
|
|
|
Server::~Server()
|
|
|
|
{
|
2015-08-22 13:27:48 +03:00
|
|
|
if (m_listener)
|
|
|
|
close_session();
|
2012-12-19 00:20:36 +04:00
|
|
|
}
|
|
|
|
|
2014-03-25 13:21:20 +04:00
|
|
|
void Server::remove_accepter(Accepter* accepter)
|
|
|
|
{
|
|
|
|
auto it = find(m_accepters, accepter);
|
|
|
|
kak_assert(it != m_accepters.end());
|
|
|
|
m_accepters.erase(it);
|
|
|
|
}
|
|
|
|
|
2012-10-24 00:55:44 +04:00
|
|
|
}
|