aboutsummaryrefslogtreecommitdiffstats
path: root/lib/inets/src/ftp/ftp.erl
diff options
context:
space:
mode:
Diffstat (limited to 'lib/inets/src/ftp/ftp.erl')
-rw-r--r--lib/inets/src/ftp/ftp.erl338
1 files changed, 199 insertions, 139 deletions
diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl
index 5d9887a9a4..f937402477 100644
--- a/lib/inets/src/ftp/ftp.erl
+++ b/lib/inets/src/ftp/ftp.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -67,7 +67,8 @@
%% Internal state
-record(state, {
csock = undefined, % socket() - Control connection socket
- dsock = undefined, % socket() - Data connection socket
+ dsock = undefined, % socket() - Data connection socket
+ tls_options = undefined, % list()
verbose = false, % boolean()
ldir = undefined, % string() - Current local directory
type = ftp_server_default, % atom() - binary | ascii
@@ -90,7 +91,8 @@
caller = undefined, % term()
ipfamily, % inet | inet6 | inet6fb4
progress = ignore, % ignore | pid()
- dtimeout = ?DATA_ACCEPT_TIMEOUT % non_neg_integer() | infinity
+ dtimeout = ?DATA_ACCEPT_TIMEOUT, % non_neg_integer() | infinity
+ tls_upgrading_data_connection
}).
@@ -154,8 +156,7 @@ open(Host, Opts) when is_list(Opts) ->
?fcrt("open", [{open_options, OpenOptions}]),
case start_link(StartOptions, []) of
{ok, Pid} ->
- ?fcrt("open - ok", [{pid, Pid}]),
- call(Pid, {open, ip_comm, OpenOptions}, plain);
+ do_open(Pid, OpenOptions, tls_options(Opts));
Error1 ->
?fcrt("open - error", [{error1, Error1}]),
Error1
@@ -166,7 +167,13 @@ open(Host, Opts) when is_list(Opts) ->
Error2
end.
-
+do_open(Pid, OpenOptions, TLSOpts) ->
+ case call(Pid, {open, ip_comm, OpenOptions}, plain) of
+ {ok, Pid} ->
+ maybe_tls_upgrade(Pid, TLSOpts);
+ Error ->
+ Error
+ end.
%%--------------------------------------------------------------------------
%% user(Pid, User, Pass, <Acc>) -> ok | {error, euser} | {error, econn}
%% | {error, eacct}
@@ -905,6 +912,10 @@ open_options(Options) ->
{progress, ValidateProgress, false, ?PROGRESS_DEFAULT}],
validate_options(Options, ValidOptions, []).
+tls_options(Options) ->
+ %% Options will be validated by ssl application
+ proplists:get_value(tls, Options, undefined).
+
validate_options([], [], Acc) ->
?fcrt("validate_options -> done", [{acc, Acc}]),
{ok, lists:reverse(Acc)};
@@ -1021,8 +1032,8 @@ handle_call({_, info}, _, #state{verbose = Verbose,
ipfamily = IpFamily,
csock = Socket,
progress = Progress} = State) ->
- {ok, {_, LocalPort}} = inet:sockname(Socket),
- {ok, {Address, Port}} = inet:peername(Socket),
+ {ok, {_, LocalPort}} = sockname(Socket),
+ {ok, {Address, Port}} = peername(Socket),
Options = [{verbose, Verbose},
{ipfamily, IpFamily},
{mode, Mode},
@@ -1091,6 +1102,10 @@ handle_call({_, {open, ip_comm, Host, Opts}}, From, State) ->
{stop, normal, State2#state{client = undefined}}
end;
+handle_call({_, {open, tls_upgrade, TLSOptions}}, From, State) ->
+ send_ctrl_message(State, mk_cmd("AUTH TLS", [])),
+ {noreply, State#state{client = From, caller = open, tls_options = TLSOptions}};
+
handle_call({_, {user, User, Password}}, From,
#state{csock = CSock} = State) when (CSock =/= undefined) ->
handle_user(User, Password, "", State#state{client = From});
@@ -1196,8 +1211,8 @@ handle_call({_,{recv_chunk_start, RemoteFile}}, From, #state{chunk = false}
handle_call({_, recv_chunk}, _, #state{chunk = false} = State) ->
{reply, {error, "ftp:recv_chunk_start/2 not called"}, State};
-handle_call({_, recv_chunk}, From, #state{chunk = true} = State) ->
- activate_data_connection(State),
+handle_call({_, recv_chunk}, From, #state{chunk = true} = State0) ->
+ State = activate_data_connection(State0),
{noreply, State#state{client = From, caller = recv_chunk}};
handle_call({_, {send, LocalFile, RemoteFile}}, From,
@@ -1301,10 +1316,10 @@ handle_info(timeout, State) ->
%%% Data socket messages %%%
handle_info({tcp, Socket, Data},
#state{dsock = Socket,
- caller = {recv_file, Fd}} = State) ->
+ caller = {recv_file, Fd}} = State0) ->
file_write(binary_to_list(Data), Fd),
- progress_report({binary, Data}, State),
- activate_data_connection(State),
+ progress_report({binary, Data}, State0),
+ State = activate_data_connection(State0),
{noreply, State};
handle_info({tcp, Socket, Data}, #state{dsock = Socket, client = From,
@@ -1313,8 +1328,8 @@ handle_info({tcp, Socket, Data}, #state{dsock = Socket, client = From,
gen_server:reply(From, {ok, Data}),
{noreply, State#state{client = undefined, data = <<>>}};
-handle_info({tcp, Socket, Data}, #state{dsock = Socket} = State) ->
- activate_data_connection(State),
+handle_info({tcp, Socket, Data}, #state{dsock = Socket} = State0) ->
+ State = activate_data_connection(State0),
{noreply, State#state{data = <<(State#state.data)/binary,
Data/binary>>}};
@@ -1357,12 +1372,12 @@ handle_info({tcp_error, Socket, Reason}, #state{dsock = Socket,
data = <<>>, caller = undefined, chunk = false}};
%%% Ctrl socket messages %%%
-handle_info({tcp, Socket, Data}, #state{csock = Socket,
- verbose = Verbose,
- caller = Caller,
- client = From,
- ctrl_data = {CtrlData, AccLines,
- LineStatus}}
+handle_info({Transport, Socket, Data}, #state{csock = {Transport, Socket},
+ verbose = Verbose,
+ caller = Caller,
+ client = From,
+ ctrl_data = {CtrlData, AccLines,
+ LineStatus}}
= State) ->
case ftp_response:parse_lines(<<CtrlData/binary, Data/binary>>,
AccLines, LineStatus) of
@@ -1386,10 +1401,12 @@ handle_info({tcp, Socket, Data}, #state{csock = Socket,
{noreply, State#state{ctrl_data = NewCtrlData}}
end;
-handle_info({tcp_closed, Socket}, #state{csock = Socket}) ->
- %% If the server closes the control channel it is
- %% the expected behavior that connection process terminates.
+%% If the server closes the control channel it is
+%% the expected behavior that connection process terminates.
+handle_info({tcp_closed, Socket}, #state{csock = {tcp, Socket}}) ->
exit(normal); %% User will get error message from terminate/2
+handle_info({ssl_closed, Socket}, #state{csock = {ssl, Socket}}) ->
+ exit(normal);
handle_info({tcp_error, Socket, Reason}, _) ->
Report =
@@ -1399,6 +1416,8 @@ handle_info({tcp_error, Socket, Reason}, _) ->
%% If tcp does not work the only option is to terminate,
%% this is the expected behavior under these circumstances.
exit(normal); %% User will get error message from terminate/2
+handle_info({ssl_error, _Socket, _Reason}, _) ->
+ exit(normal); %% TODO??
%% Monitor messages - if the process owning the ftp connection goes
%% down there is no point in continuing.
@@ -1568,6 +1587,40 @@ handle_user_account(Acc, State) ->
%%--------------------------------------------------------------------------
%%--------------------------------------------------------------------------
%% Handling of control connection setup
+handle_ctrl_result({pos_compl, _}, #state{tls_upgrading_data_connection = {true, pbsz, _}} = State) ->
+ send_ctrl_message(State, mk_cmd("PROT P", [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{tls_upgrading_data_connection = {true, prot}}};
+
+handle_ctrl_result({pos_compl, _}, #state{tls_upgrading_data_connection = {true, prot, NextAction},
+ dsock = {tcp, Socket}, client = From,
+ tls_options = TLSOptions} = State0) ->
+ case ssl:connect(Socket, TLSOptions) of
+ {ok, TLSSocket} ->
+ State = State0#state{dsock = {ssl, TLSSocket},
+ tls_upgrading_data_connection = {false, undefined}},
+ next_action_after_tls_upgrade(NextAction, State);
+ {error, _} = Error ->
+ gen_server:reply(From, {Error, self()}),
+ {stop, normal, State0#state{client = undefined,
+ caller = undefined}}
+ end;
+
+handle_ctrl_result({tls_upgrade, _}, #state{csock = {tcp, Socket},
+ tls_options = TLSOptions,
+ caller = open, client = From}
+ = State) ->
+ case ssl:connect(Socket, TLSOptions) of
+ {ok, TLSSocket} ->
+ gen_server:reply(From, {ok, self()}),
+ {noreply, State#state{csock = {ssl, TLSSocket},
+ client = undefined,
+ caller = undefined }};
+ {error, _} = Error ->
+ gen_server:reply(From, {Error, self()}),
+ {stop, normal, State#state{client = undefined,
+ caller = undefined}}
+ end;
handle_ctrl_result({pos_compl, _}, #state{caller = open, client = From}
= State) ->
gen_server:reply(From, {ok, self()}),
@@ -1601,10 +1654,10 @@ handle_ctrl_result({pos_compl, Lines},
timeout = Timeout}
= State) ->
[_, PortStr | _] = lists:reverse(string:tokens(Lines, "|")),
- {ok, {IP, _}} = inet:peername(CSock),
+ {ok, {IP, _}} = peername(CSock),
case connect(IP, list_to_integer(PortStr), Timeout, State) of
{ok, _, Socket} ->
- handle_caller(State#state{caller = Caller, dsock = Socket});
+ handle_caller(State#state{caller = Caller, dsock = {tcp, Socket}});
{error, _Reason} = Error ->
gen_server:reply(From, Error),
{noreply, State#state{client = undefined, caller = undefined}}
@@ -1669,18 +1722,18 @@ handle_ctrl_result({pos_compl, Lines},
%%--------------------------------------------------------------------------
%% Directory listing
-handle_ctrl_result({pos_prel, _}, #state{caller = {dir, Dir}} = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- activate_data_connection(NewState),
- {noreply, NewState#state{caller = {handle_dir_result, Dir}}};
+handle_ctrl_result({pos_prel, _}, #state{caller = {dir, Dir}} = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ State = activate_data_connection(State1),
+ {noreply, State#state{caller = {handle_dir_result, Dir}}};
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
@@ -1778,18 +1831,18 @@ handle_ctrl_result({Status, _},
%%--------------------------------------------------------------------------
%% File handling - recv_bin
-handle_ctrl_result({pos_prel, _}, #state{caller = recv_bin} = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- activate_data_connection(NewState),
- {noreply, NewState};
+handle_ctrl_result({pos_prel, _}, #state{caller = recv_bin} = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ State = activate_data_connection(State1),
+ {noreply, State};
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
@@ -1812,36 +1865,35 @@ handle_ctrl_result({Status, _}, #state{caller = {recv_bin, _}} = State) ->
%% File handling - start_chunk_transfer
handle_ctrl_result({pos_prel, _}, #state{client = From,
caller = start_chunk_transfer}
- = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- gen_server:reply(From, ok),
- {noreply, NewState#state{chunk = true, client = undefined,
- caller = undefined}};
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ State = start_chunk(State1),
+ {noreply, State};
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
%%--------------------------------------------------------------------------
%% File handling - recv_file
-handle_ctrl_result({pos_prel, _}, #state{caller = {recv_file, _}} = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- activate_data_connection(NewState),
- {noreply, NewState};
+handle_ctrl_result({pos_prel, _}, #state{caller = {recv_file, _}} = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ State = activate_data_connection(State1),
+ {noreply, State};
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
@@ -1853,36 +1905,32 @@ handle_ctrl_result({Status, _}, #state{caller = {recv_file, Fd}} = State) ->
%%--------------------------------------------------------------------------
%% File handling - transfer_*
handle_ctrl_result({pos_prel, _}, #state{caller = {transfer_file, Fd}}
- = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- send_file(Fd, NewState);
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ send_file(State1, Fd);
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
handle_ctrl_result({pos_prel, _}, #state{caller = {transfer_data, Bin}}
- = State) ->
- case accept_data_connection(State) of
- {ok, NewState} ->
- send_data_message(NewState, Bin),
- close_data_connection(NewState),
- activate_ctrl_connection(NewState),
- {noreply, NewState#state{caller = transfer_data_second_phase,
- dsock = undefined}};
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State} ->
+ send_bin(State, Bin);
{error, _Reason} = ERROR ->
- case State#state.client of
+ case State0#state.client of
undefined ->
- {stop, ERROR, State};
+ {stop, ERROR, State0};
From ->
gen_server:reply(From, ERROR),
- {stop, normal, State#state{client = undefined}}
+ {stop, normal, State0#state{client = undefined}}
end
end;
@@ -1975,7 +2023,7 @@ setup_ctrl_connection(Host, Port, Timeout, State) ->
MsTime = millisec_time(),
case connect(Host, Port, Timeout, State) of
{ok, IpFam, CSock} ->
- NewState = State#state{csock = CSock, ipfamily = IpFam},
+ NewState = State#state{csock = {tcp, CSock}, ipfamily = IpFam},
activate_ctrl_connection(NewState),
case Timeout - (millisec_time() - MsTime) of
Timeout2 when (Timeout2 >= 0) ->
@@ -1991,12 +2039,12 @@ setup_ctrl_connection(Host, Port, Timeout, State) ->
setup_data_connection(#state{mode = active,
caller = Caller,
csock = CSock} = State) ->
- case (catch inet:sockname(CSock)) of
+ case (catch sockname(CSock)) of
{ok, {{_, _, _, _, _, _, _, _} = IP, _}} ->
{ok, LSock} =
gen_tcp:listen(0, [{ip, IP}, {active, false},
inet6, binary, {packet, 0}]),
- {ok, Port} = inet:port(LSock),
+ {ok, {_, Port}} = sockname(LSock),
IpAddress = inet_parse:ntoa(IP),
Cmd = mk_cmd("EPRT |2|~s|~p|", [IpAddress, Port]),
send_ctrl_message(State, Cmd),
@@ -2029,20 +2077,6 @@ setup_data_connection(#state{mode = passive, ipfamily = inet,
activate_ctrl_connection(State),
{noreply, State#state{caller = {setup_data_connection, Caller}}}.
-
-%% setup_data_connection(#state{mode = passive, ip_v6_disabled = false,
-%% caller = Caller} = State) ->
-%% send_ctrl_message(State, mk_cmd("EPSV", [])),
-%% activate_ctrl_connection(State),
-%% {noreply, State#state{caller = {setup_data_connection, Caller}}};
-
-%% setup_data_connection(#state{mode = passive, ip_v6_disabled = true,
-%% caller = Caller} = State) ->
-%% send_ctrl_message(State, mk_cmd("PASV", [])),
-%% activate_ctrl_connection(State),
-%% {noreply, State#state{caller = {setup_data_connection, Caller}}}.
-
-
connect(Host, Port, Timeout, #state{ipfamily = inet = IpFam}) ->
connect2(Host, Port, IpFam, Timeout);
@@ -2088,39 +2122,40 @@ connect2(Host, Port, IpFam, Timeout) ->
accept_data_connection(#state{mode = active,
dtimeout = DTimeout,
- dsock = {lsock, LSock}} = State) ->
+ dsock = {lsock, LSock}} = State0) ->
case gen_tcp:accept(LSock, DTimeout) of
{ok, Socket} ->
gen_tcp:close(LSock),
- {ok, State#state{dsock = Socket}};
+ maybe_requests_tls_upgrade(State0#state{dsock = {tcp, Socket}});
{error, Reason} ->
{error, {data_connect_failed, Reason}}
end;
accept_data_connection(#state{mode = passive} = State) ->
- {ok, State}.
+ maybe_requests_tls_upgrade(State).
send_ctrl_message(#state{csock = Socket, verbose = Verbose}, Message) ->
- %% io:format("send control message: ~n~p~n", [lists:flatten(Message)]),
verbose(lists:flatten(Message),Verbose,send),
send_message(Socket, Message).
send_data_message(#state{dsock = Socket}, Message) ->
- send_message(Socket, Message).
-
-send_message(Socket, Message) ->
- case gen_tcp:send(Socket, Message) of
+ case send_message(Socket, Message) of
ok ->
ok;
{error, Reason} ->
- Report = io_lib:format("gen_tcp:send/2 failed for "
- "reason ~p~n", [Reason]),
+ Report = io_lib:format("send/2 for socket ~p failed with "
+ "reason ~p~n", [Socket, Reason]),
error_logger:error_report(Report),
- %% If tcp does not work the only option is to terminate,
+ %% If tcp/ssl does not work the only option is to terminate,
%% this is the expected behavior under these circumstances.
exit(normal) %% User will get error message from terminate/2
end.
+send_message({tcp, Socket}, Message) ->
+ gen_tcp:send(Socket, Message);
+send_message({ssl, Socket}, Message) ->
+ ssl:send(Socket, Message).
+
activate_ctrl_connection(#state{csock = Socket, ctrl_data = {<<>>, _, _}}) ->
activate_connection(Socket);
activate_ctrl_connection(#state{csock = Socket}) ->
@@ -2128,35 +2163,39 @@ activate_ctrl_connection(#state{csock = Socket}) ->
%% that has been saved in ctrl_data, process this first.
self() ! {tcp, Socket, <<>>}.
-activate_data_connection(#state{dsock = Socket}) ->
- activate_connection(Socket).
-
-activate_connection(Socket) ->
- inet:setopts(Socket, [{active, once}]).
+activate_data_connection(#state{tls_upgrading_data_connection = {false, _, _},
+ dsock = Socket} = State) ->
+ activate_connection(Socket),
+ State;
+activate_data_connection(#state{tls_upgrading_data_connection = {true, CTRL, _}} = State) ->
+ State#state{tls_upgrading_data_connection = {true, CTRL, ?MODULE, activate_data_connection, undefined}}.
+activate_connection({tcp, Socket}) ->
+ inet:setopts(Socket, [{active, once}]);
+activate_connection({ssl, Socket}) ->
+ ssl:setopts(Socket, [{active, once}]).
close_ctrl_connection(#state{csock = undefined}) ->
ok;
-close_ctrl_connection(#state{csock = Socket}) ->
+close_ctrl_connection(#state{csock = {_, Socket}}) ->
close_connection(Socket).
close_data_connection(#state{dsock = undefined}) ->
ok;
-close_data_connection(#state{dsock = {lsock, Socket}}) ->
- close_connection(Socket);
-close_data_connection(#state{dsock = Socket}) ->
+close_data_connection(#state{dsock = {_, Socket}}) ->
close_connection(Socket).
close_connection(Socket) ->
gen_tcp:close(Socket).
%% ------------ FILE HANDELING ----------------------------------------
-
-send_file(Fd, State) ->
+send_file(#state{tls_upgrading_data_connection = {true, CTRL, _}} = State, Fd) ->
+ {noreply, State#state{tls_upgrading_data_connection = {true, CTRL, ?MODULE, send_file, Fd}}};
+send_file(State, Fd) ->
case file_read(Fd) of
{ok, N, Bin} when N > 0->
send_data_message(State, Bin),
progress_report({binary, Bin}, State),
- send_file(Fd, State);
+ send_file(State, Fd);
{ok, _, _} ->
file_close(Fd),
close_data_connection(State),
@@ -2206,6 +2245,15 @@ call(GenServer, Msg, Format, Timeout) ->
cast(GenServer, Msg) ->
gen_server:cast(GenServer, {self(), Msg}).
+send_bin(#state{tls_upgrading_data_connection = {true, CTRL, _}} = State, Bin) ->
+ State#state{tls_upgrading_data_connection = {true, CTRL, ?MODULE, send_bin, Bin}};
+send_bin(State, Bin) ->
+ send_data_message(State, Bin),
+ close_data_connection(State),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = transfer_data_second_phase,
+ dsock = undefined}}.
+
mk_cmd(Fmt, Args) ->
[io_lib:format(Fmt, Args)| [?CR, ?LF]]. % Deep list ok.
@@ -2216,20 +2264,6 @@ pwd_result(Lines) ->
lists:splitwith(fun(?DOUBLE_QUOTE) -> false; (_) -> true end, Rest),
Dir.
-%% is_verbose(Params) ->
-%% check_param(verbose, Params).
-
-%% is_debug(Flags) ->
-%% check_param(debug, Flags).
-
-%% is_trace(Flags) ->
-%% check_param(trace, Flags).
-
-%% is_ipv6_disabled(Flags) ->
-%% check_param(ip_v6_disabled, Flags).
-
-%% check_param(Param, Params) ->
-%% lists:member(Param, Params).
key_search(Key, List, Default) ->
case lists:keysearch(Key, 1, List) of
@@ -2239,14 +2273,6 @@ key_search(Key, List, Default) ->
Default
end.
-%% check_option(Pred, Value, Default) ->
-%% case Pred(Value) of
-%% true ->
-%% Value;
-%% false ->
-%% Default
-%% end.
-
verbose(Lines, true, Direction) ->
DirStr =
case Direction of
@@ -2276,3 +2302,37 @@ progress_report(Report, #state{progress = ProgressPid}) ->
millisec_time() ->
{A,B,C} = erlang:now(),
A*1000000000+B*1000+(C div 1000).
+
+peername({tcp, Socket}) ->
+ inet:peername(Socket);
+peername({ssl, Socket}) ->
+ ssl:peername(Socket).
+sockname({tcp, Socket}) ->
+ inet:peername(Socket);
+sockname({ssl, Socket}) ->
+ ssl:peername(Socket).
+
+maybe_tls_upgrade(Pid, undefined) ->
+ {ok, Pid};
+maybe_tls_upgrade(Pid, TLSOptions) ->
+ call(Pid, {open, tls_upgrade, TLSOptions}, plain).
+
+maybe_requests_tls_upgrade(#state{tls_options = [_|_]} = State) ->
+ send_ctrl_message(State, mk_cmd("PBSZ 0", [])),
+ activate_ctrl_connection(State),
+ {ok, State#state{tls_upgrading_data_connection = {true, pbsz, undefined}}};
+maybe_requests_tls_upgrade(#state{tls_options = undefined} = State) ->
+ {ok, State}.
+
+next_action_after_tls_upgrade({M, F, undefined}, State) ->
+ M:F(State);
+next_action_after_tls_upgrade({M, F, A}, State) ->
+ M:F(State, A).
+
+start_chunk(#state{tls_upgrading_data_connection = {true, CTRL, _}} = State) ->
+ State#state{tls_upgrading_data_connection = {true, CTRL, ?MODULE, start_chunk, undefined}};
+start_chunk(#state{client = From} = State) ->
+ gen_server:reply(From, ok),
+ State#state{chunk = true,
+ client = undefined,
+ caller = undefined}.