diff options
| -rw-r--r-- | lib/inets/src/ftp/ftp.erl | 77 |
1 files changed, 65 insertions, 12 deletions
diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl index 5674599ac5..8e51b1be5a 100644 --- a/lib/inets/src/ftp/ftp.erl +++ b/lib/inets/src/ftp/ftp.erl @@ -60,6 +60,7 @@ -define(DATA_ACCEPT_TIMEOUT, infinity). -define(DEFAULT_MODE, passive). -define(PROGRESS_DEFAULT, ignore). +-define(FTP_EXT_DEFAULT, false). %% Internal Constants -define(FTP_PORT, 21). @@ -94,7 +95,8 @@ ipfamily, % inet | inet6 | inet6fb4 progress = ignore, % ignore | pid() dtimeout = ?DATA_ACCEPT_TIMEOUT, % non_neg_integer() | infinity - tls_upgrading_data_connection = false + tls_upgrading_data_connection = false, + ftp_extension = ?FTP_EXT_DEFAULT }). @@ -969,6 +971,8 @@ start_options(Options) -> %% timeout %% dtimeout %% progress +%% ftp_extension + open_options(Options) -> ?fcrt("open_options", [{options, Options}]), ValidateMode = @@ -1013,6 +1017,11 @@ open_options(Options) -> (_) -> false end, + ValidateFtpExtension = + fun(true) -> true; + (false) -> true; + (_) -> false + end, ValidOptions = [{mode, ValidateMode, false, ?DEFAULT_MODE}, {host, ValidateHost, true, ehost}, @@ -1020,7 +1029,8 @@ open_options(Options) -> {ipfamily, ValidateIpFamily, false, inet}, {timeout, ValidateTimeout, false, ?CONNECTION_TIMEOUT}, {dtimeout, ValidateDTimeout, false, ?DATA_ACCEPT_TIMEOUT}, - {progress, ValidateProgress, false, ?PROGRESS_DEFAULT}], + {progress, ValidateProgress, false, ?PROGRESS_DEFAULT}, + {ftp_extension, ValidateFtpExtension, false, ?FTP_EXT_DEFAULT}], validate_options(Options, ValidOptions, []). tls_options(Options) -> @@ -1174,12 +1184,14 @@ handle_call({_, {open, ip_comm, Opts}}, From, State) -> DTimeout = key_search(dtimeout, Opts, ?DATA_ACCEPT_TIMEOUT), Progress = key_search(progress, Opts, ignore), IpFamily = key_search(ipfamily, Opts, inet), + FtpExt = key_search(ftp_extension, Opts, ?FTP_EXT_DEFAULT), State2 = State#state{client = From, mode = Mode, progress = progress(Progress), ipfamily = IpFamily, - dtimeout = DTimeout}, + dtimeout = DTimeout, + ftp_extension = FtpExt}, ?fcrd("handle_call(open) -> setup ctrl connection with", [{host, Host}, {port, Port}, {timeout, Timeout}]), @@ -1202,11 +1214,13 @@ handle_call({_, {open, ip_comm, Host, Opts}}, From, State) -> Timeout = key_search(timeout, Opts, ?CONNECTION_TIMEOUT), DTimeout = key_search(dtimeout, Opts, ?DATA_ACCEPT_TIMEOUT), Progress = key_search(progress, Opts, ignore), + FtpExt = key_search(ftp_extension, Opts, ?FTP_EXT_DEFAULT), State2 = State#state{client = From, mode = Mode, progress = progress(Progress), - dtimeout = DTimeout}, + dtimeout = DTimeout, + ftp_extension = FtpExt}, case setup_ctrl_connection(Host, Port, Timeout, State2) of {ok, State3, WaitTimeout} -> @@ -1785,7 +1799,8 @@ handle_ctrl_result({pos_compl, Lines}, ipfamily = inet, client = From, caller = {setup_data_connection, Caller}, - timeout = Timeout} = State) -> + timeout = Timeout, + ftp_extension = false} = State) -> {_, [?LEFT_PAREN | Rest]} = lists:splitwith(fun(?LEFT_PAREN) -> false; (_) -> true end, Lines), @@ -1806,6 +1821,28 @@ handle_ctrl_result({pos_compl, Lines}, {noreply,State#state{client = undefined, caller = undefined}} end; +handle_ctrl_result({pos_compl, Lines}, + #state{mode = passive, + ipfamily = inet, + client = From, + caller = {setup_data_connection, Caller}, + csock = CSock, + timeout = Timeout, + ftp_extension = true} = State) -> + + [_, PortStr | _] = lists:reverse(string:tokens(Lines, "|")), + {ok, {IP, _}} = peername(CSock), + + ?DBG('<--data tcp connect to ~p:~p, Caller=~p~n',[IP,PortStr,Caller]), + case connect(IP, list_to_integer(PortStr), Timeout, State) of + {ok, _, 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}} + end; + + %% FTP server does not support passive mode: try to fallback on active mode handle_ctrl_result(_, #state{mode = passive, @@ -2157,7 +2194,8 @@ setup_ctrl_connection(Host, Port, Timeout, State) -> setup_data_connection(#state{mode = active, caller = Caller, - csock = CSock} = State) -> + csock = CSock, + ftp_extension = FtpExt} = State) -> case (catch sockname(CSock)) of {ok, {{_, _, _, _, _, _, _, _} = IP, _}} -> {ok, LSock} = @@ -2174,11 +2212,18 @@ setup_data_connection(#state{mode = active, {ok, LSock} = gen_tcp:listen(0, [{ip, IP}, {active, false}, binary, {packet, 0}]), {ok, Port} = inet:port(LSock), - {IP1, IP2, IP3, IP4} = IP, - {Port1, Port2} = {Port div 256, Port rem 256}, - send_ctrl_message(State, - mk_cmd("PORT ~w,~w,~w,~w,~w,~w", - [IP1, IP2, IP3, IP4, Port1, Port2])), + case FtpExt of + false -> + {IP1, IP2, IP3, IP4} = IP, + {Port1, Port2} = {Port div 256, Port rem 256}, + send_ctrl_message(State, + mk_cmd("PORT ~w,~w,~w,~w,~w,~w", + [IP1, IP2, IP3, IP4, Port1, Port2])); + true -> + IpAddress = inet_parse:ntoa(IP), + Cmd = mk_cmd("EPRT |1|~s|~p|", [IpAddress, Port]), + send_ctrl_message(State, Cmd) + end, activate_ctrl_connection(State), {noreply, State#state{caller = {setup_data_connection, {LSock, Caller}}}} @@ -2191,9 +2236,17 @@ setup_data_connection(#state{mode = passive, ipfamily = inet6, {noreply, State#state{caller = {setup_data_connection, Caller}}}; setup_data_connection(#state{mode = passive, ipfamily = inet, - caller = Caller} = State) -> + caller = Caller, + ftp_extension = false} = State) -> send_ctrl_message(State, mk_cmd("PASV", [])), activate_ctrl_connection(State), + {noreply, State#state{caller = {setup_data_connection, Caller}}}; + +setup_data_connection(#state{mode = passive, ipfamily = inet, + caller = Caller, + ftp_extension = true} = State) -> + send_ctrl_message(State, mk_cmd("EPSV", [])), + activate_ctrl_connection(State), {noreply, State#state{caller = {setup_data_connection, Caller}}}. connect(Host, Port, Timeout, #state{ipfamily = inet = IpFam}) -> |