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|
defmodule TrongleSSH.SSH.ConnectionCLIManager do
alias TrongleSSH.SSH.{Session, Tui}
alias IO.ANSI
require Logger
@behaviour :ssh_server_channel
@session_closed_message [
ANSI.clear(),
["This session has been closed."]
]
defmodule State do
defstruct channel_id: nil,
width: nil,
height: nil,
client_pid: nil,
connection_ref: nil,
session: %Session{}
end
def init([%State{} = init_state]) do
{:ok, init_state}
end
def handle_msg({:ssh_channel_up, channel_id, connection_ref}, %State{} = state) do
connected_user =
:ssh.connection_info(connection_ref)
|> Keyword.fetch!(:user)
|> String.Chars.to_string()
{:ok,
%State{
state
| channel_id: channel_id,
connection_ref: connection_ref,
session: %Session{username: connected_user}
}}
end
def handle_msg(
{:EXIT, client_pid, _reason},
%State{client_pid: client_pid, channel_id: channel_id} = state
) do
send(client_pid, :quit)
{:stop, channel_id, state}
end
def handle_msg(
{:send_data, data},
%State{connection_ref: connection_ref, channel_id: channel_id} = state
) do
:ssh_connection.send(connection_ref, channel_id, data)
{:ok, state}
end
def handle_msg(
:session_closed,
%State{connection_ref: connection_ref, channel_id: channel_id} = state
) do
:ssh_connection.send(connection_ref, channel_id, @session_closed_message)
{:stop, channel_id, state}
end
def handle_msg(msg, term) do
Logger.debug("Unknown msg #{inspect(msg)}, #{inspect(term)}")
end
def handle_ssh_msg(
{:ssh_cm, _connection_handler, {:data, _channel_id, _type, data}},
%State{} = state
) do
send(state.client_pid, {:data, data})
{:ok, state}
end
def handle_ssh_msg(
{:ssh_cm, connection_handler,
{:pty, channel_id, want_reply?, {_term, width, height, _pixwidth, _pixheight, _opts}}},
%State{} = state
) do
:ssh_connection.reply_request(connection_handler, want_reply?, :success, channel_id)
{:ok,
%{
state
| width: width,
height: height
}}
end
def handle_ssh_msg(
{:ssh_cm, connection_handler, {:env, channel_id, want_reply?, _var, _value}},
state
) do
:ssh_connection.reply_request(connection_handler, want_reply?, :failure, channel_id)
{:ok, state}
end
def handle_ssh_msg(
{:ssh_cm, _connection_handler,
{:window_change, _channel_id, width, height, _pixwidth, _pixheight}},
%State{client_pid: client_pid} = state
) do
send(client_pid, {:resize, {width, height}})
{:ok,
%State{
state
| width: width,
height: height
}}
end
def handle_ssh_msg(
{:ssh_cm, connection_handler, {:shell, channel_id, want_reply?}},
%State{width: width, height: height, session: session} = state
) do
:ssh_connection.reply_request(connection_handler, want_reply?, :success, channel_id)
{:ok, client_pid} =
GenServer.start_link(Tui, [
%Tui.State{
connection_manager_pid: self(),
width: width,
height: height,
session: session
}
])
send(client_pid, :refresh)
{:ok, %State{state | client_pid: client_pid}}
end
def handle_ssh_msg(
msg,
%State{channel_id: channel_id} = state
) do
Logger.debug("unknown ssh #{inspect(msg)}")
{:stop, channel_id, state}
end
def terminate(_reason, _state), do: :ok
end
|
