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-rw-r--r--lib/ftp/src/Makefile118
-rw-r--r--lib/ftp/src/ftp.app.src19
-rw-r--r--lib/ftp/src/ftp.appup.src26
-rw-r--r--lib/ftp/src/ftp.erl2596
-rw-r--r--lib/ftp/src/ftp_app.erl47
-rw-r--r--lib/ftp/src/ftp_internal.hrl35
-rw-r--r--lib/ftp/src/ftp_progress.erl136
-rw-r--r--lib/ftp/src/ftp_response.erl203
-rw-r--r--lib/ftp/src/ftp_sup.erl68
9 files changed, 3248 insertions, 0 deletions
diff --git a/lib/ftp/src/Makefile b/lib/ftp/src/Makefile
new file mode 100644
index 0000000000..6a6df6bde4
--- /dev/null
+++ b/lib/ftp/src/Makefile
@@ -0,0 +1,118 @@
+#
+# %CopyrightBegin%
+#
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# %CopyrightEnd%
+#
+
+#
+
+include $(ERL_TOP)/make/target.mk
+include $(ERL_TOP)/make/$(TARGET)/otp.mk
+
+# ----------------------------------------------------
+# Application version
+# ----------------------------------------------------
+include ../vsn.mk
+VSN=$(FTP_VSN)
+
+# ----------------------------------------------------
+# Release directory specification
+# ----------------------------------------------------
+RELSYSDIR = $(RELEASE_PATH)/lib/ftp-$(VSN)
+
+# ----------------------------------------------------
+# Common Macros
+# ----------------------------------------------------
+
+BEHAVIOUR_MODULES=
+
+MODULES= \
+ ftp \
+ ftp_app \
+ ftp_progress \
+ ftp_response \
+ ftp_sup
+
+
+INTERNAL_HRL_FILES =
+
+ERL_FILES= \
+ $(MODULES:%=%.erl) \
+ $(BEHAVIOUR_MODULES:%=%.erl)
+
+
+TARGET_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR))
+
+BEHAVIOUR_TARGET_FILES= $(BEHAVIOUR_MODULES:%=$(EBIN)/%.$(EMULATOR))
+
+APP_FILE= ftp.app
+APPUP_FILE= ftp.appup
+
+APP_SRC= $(APP_FILE).src
+APP_TARGET= $(EBIN)/$(APP_FILE)
+APPUP_SRC= $(APPUP_FILE).src
+APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
+
+# ----------------------------------------------------
+# FLAGS
+# ----------------------------------------------------
+EXTRA_ERLC_FLAGS = +warn_unused_vars
+ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \
+ -pz $(EBIN) \
+ -pz $(ERL_TOP)/lib/public_key/ebin \
+ $(EXTRA_ERLC_FLAGS) -DVSN=\"$(VSN)\"
+
+
+# ----------------------------------------------------
+# Targets
+# ----------------------------------------------------
+
+$(TARGET_FILES): $(BEHAVIOUR_TARGET_FILES)
+
+debug opt: $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET)
+
+clean:
+ rm -f $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) $(BEHAVIOUR_TARGET_FILES)
+ rm -f errs core *~
+
+$(APP_TARGET): $(APP_SRC) ../vsn.mk
+ $(vsn_verbose)sed -e 's;%VSN%;$(VSN);' $< > $@
+
+$(APPUP_TARGET): $(APPUP_SRC) ../vsn.mk
+ $(vsn_verbose)sed -e 's;%VSN%;$(VSN);' $< > $@
+
+docs:
+
+
+# ----------------------------------------------------
+# Release Target
+# ----------------------------------------------------
+include $(ERL_TOP)/make/otp_release_targets.mk
+
+release_spec: opt
+ $(INSTALL_DIR) "$(RELSYSDIR)/src"
+ $(INSTALL_DATA) $(ERL_FILES) $(INTERNAL_HRL_FILES) "$(RELSYSDIR)/src"
+ $(INSTALL_DIR) "$(RELSYSDIR)/ebin"
+ $(INSTALL_DATA) $(BEHAVIOUR_TARGET_FILES) $(TARGET_FILES) $(APP_TARGET) \
+ $(APPUP_TARGET) "$(RELSYSDIR)/ebin"
+
+release_docs_spec:
+
+# ----------------------------------------------------
+# Dependencies
+# ----------------------------------------------------
+
diff --git a/lib/ftp/src/ftp.app.src b/lib/ftp/src/ftp.app.src
new file mode 100644
index 0000000000..237174358f
--- /dev/null
+++ b/lib/ftp/src/ftp.app.src
@@ -0,0 +1,19 @@
+{application, ftp,
+ [{description, "FTP client"},
+ {vsn, "1.0"},
+ {registered, []},
+ {mod, { ftp_app, []}},
+ {applications,
+ [kernel,
+ stdlib
+ ]},
+ {env,[]},
+ {modules, [
+ ftp,
+ ftp_app,
+ ftp_progress,
+ ftp_response,
+ ftp_sup
+ ]},
+ {runtime_dependencies, ["erts-7.0","stdlib-3.5","kernel-6.0"]}
+ ]}.
diff --git a/lib/ftp/src/ftp.appup.src b/lib/ftp/src/ftp.appup.src
new file mode 100644
index 0000000000..d79c7b60ff
--- /dev/null
+++ b/lib/ftp/src/ftp.appup.src
@@ -0,0 +1,26 @@
+%% -*- erlang -*-
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1999-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+{"%VSN%",
+ [
+ {<<".*">>,[{restart_application, ftp}]}
+ ],
+ [
+ {<<".*">>,[{restart_application, ftp}]}
+ ]
+}.
diff --git a/lib/ftp/src/ftp.erl b/lib/ftp/src/ftp.erl
new file mode 100644
index 0000000000..8790bfec13
--- /dev/null
+++ b/lib/ftp/src/ftp.erl
@@ -0,0 +1,2596 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2002-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(ftp).
+
+-behaviour(gen_server).
+
+-export([start/0,
+ start_service/1,
+ stop/0,
+ stop_service/1,
+ services/0,
+ service_info/1
+ ]).
+
+%% Added for backward compatibility
+-export([start_standalone/1]).
+
+-export([start_link/1, start_link/2]).
+
+%% API - Client interface
+-export([cd/2, close/1, delete/2, formaterror/1,
+ lcd/2, lpwd/1, ls/1, ls/2,
+ mkdir/2, nlist/1, nlist/2,
+ open/1, open/2,
+ pwd/1, quote/2,
+ recv/2, recv/3, recv_bin/2,
+ recv_chunk_start/2, recv_chunk/1,
+ rename/3, rmdir/2,
+ send/2, send/3, send_bin/3,
+ send_chunk_start/2, send_chunk/2, send_chunk_end/1,
+ type/2, user/3, user/4, account/2,
+ append/3, append/2, append_bin/3,
+ append_chunk/2, append_chunk_end/1, append_chunk_start/2,
+ info/1, latest_ctrl_response/1]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2,
+ handle_info/2, terminate/2, code_change/3]).
+
+-include("ftp_internal.hrl").
+
+%% Constants used in internal state definition
+-define(CONNECTION_TIMEOUT, 60*1000).
+-define(DATA_ACCEPT_TIMEOUT, infinity).
+-define(DEFAULT_MODE, passive).
+-define(PROGRESS_DEFAULT, ignore).
+-define(FTP_EXT_DEFAULT, false).
+
+%% Internal Constants
+-define(FTP_PORT, 21).
+-define(FILE_BUFSIZE, 4096).
+
+
+%%%=========================================================================
+%%% Data Types
+%%%=========================================================================
+
+%% Internal state
+-record(state, {
+ csock = undefined, % socket() - Control 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
+ chunk = false, % boolean() - Receiving data chunks
+ mode = ?DEFAULT_MODE, % passive | active
+ timeout = ?CONNECTION_TIMEOUT, % integer()
+ %% Data received so far on the data connection
+ data = <<>>, % binary()
+ %% Data received so far on the control connection
+ %% {BinStream, AccLines}. If a binary sequence
+ %% ends with ?CR then keep it in the binary to
+ %% be able to detect if the next received byte is ?LF
+ %% and hence the end of the response is reached!
+ ctrl_data = {<<>>, [], start}, % {binary(), [bytes()], LineStatus}
+ %% pid() - Client pid (note not the same as "From")
+ latest_ctrl_response = "",
+ owner = undefined,
+ client = undefined, % "From" to be used in gen_server:reply/2
+ %% Function that activated a connection and maybe some
+ %% data needed further on.
+ caller = undefined, % term()
+ ipfamily, % inet | inet6 | inet6fb4
+ progress = ignore, % ignore | pid()
+ dtimeout = ?DATA_ACCEPT_TIMEOUT, % non_neg_integer() | infinity
+ tls_upgrading_data_connection = false,
+ ftp_extension = ?FTP_EXT_DEFAULT
+ }).
+
+-record(recv_chunk_closing, {
+ dconn_closed = false,
+ pos_compl_received = false,
+ client_called_us = false
+ }).
+
+
+-type shortage_reason() :: 'etnospc' | 'epnospc'.
+-type restriction_reason() :: 'epath' | 'efnamena' | 'elogin' | 'enotbinary'.
+-type common_reason() :: 'econn' | 'eclosed' | term().
+-type file_write_error_reason() :: term(). % See file:write for more info
+
+-define(DBG(F,A), 'n/a').
+%%-define(DBG(F,A), io:format(F,A)).
+%%-define(DBG(F,A), ct:pal("~p:~p " ++ if is_list(F) -> F; is_atom(F) -> atom_to_list(F) end, [?MODULE,?LINE|A])).
+
+
+%%%=========================================================================
+%%% API
+%%%=========================================================================
+
+start() ->
+ application:start(ftp).
+
+start_standalone(Options) ->
+ try
+ {ok, StartOptions} = start_options(Options),
+ {ok, OpenOptions} = open_options(Options),
+ case start_link(StartOptions, []) of
+ {ok, Pid} ->
+ call(Pid, {open, ip_comm, OpenOptions}, plain);
+ Error1 ->
+ Error1
+ end
+ catch
+ throw:Error2 ->
+ Error2
+ end.
+
+start_service(Options) ->
+ try
+ {ok, StartOptions} = start_options(Options),
+ {ok, OpenOptions} = open_options(Options),
+ case ftp_sup:start_child([[[{client, self()} | StartOptions], []]]) of
+ {ok, Pid} ->
+ call(Pid, {open, ip_comm, OpenOptions}, plain);
+ Error1 ->
+ Error1
+ end
+ catch
+ throw:Error2 ->
+ Error2
+ end.
+
+stop() ->
+ application:stop(ftp).
+
+stop_service(Pid) ->
+ close(Pid).
+
+services() ->
+ [{ftpc, Pid} || {_, Pid, _, _} <-
+ supervisor:which_children(ftp_sup)].
+service_info(Pid) ->
+ {ok, Info} = call(Pid, info, list),
+ {ok, [proplists:lookup(mode, Info),
+ proplists:lookup(local_port, Info),
+ proplists:lookup(peer, Info),
+ proplists:lookup(peer_port, Info)]}.
+
+
+%%%=========================================================================
+%%% API - CLIENT FUNCTIONS
+%%%=========================================================================
+
+%%--------------------------------------------------------------------------
+%% open(HostOrOtpList, <Port>, <Flags>) -> {ok, Pid} | {error, ehost}
+%% HostOrOtpList = string() | [{option_list, Options}]
+%% Port = integer(),
+%% Flags = [Flag],
+%% Flag = verbose | debug | trace
+%%
+%% Description: Start an ftp client and connect to a host.
+%%--------------------------------------------------------------------------
+
+-spec open(Host :: string() | inet:ip_address()) ->
+ {'ok', Pid :: pid()} | {'error', Reason :: 'ehost' | term()}.
+
+%% <BACKWARD-COMPATIBILLITY>
+open({option_list, Options}) when is_list(Options) ->
+ try
+ {ok, StartOptions} = start_options(Options),
+ {ok, OpenOptions} = open_options(Options),
+ case ftp_sup:start_child([[[{client, self()} | StartOptions], []]]) of
+ {ok, Pid} ->
+ call(Pid, {open, ip_comm, OpenOptions}, plain);
+ Error1 ->
+ Error1
+ end
+ catch
+ throw:Error2 ->
+ Error2
+ end;
+%% </BACKWARD-COMPATIBILLITY>
+
+open(Host) ->
+ open(Host, []).
+
+-spec open(Host :: string() | inet:ip_address(), Opts :: list()) ->
+ {'ok', Pid :: pid()} | {'error', Reason :: 'ehost' | term()}.
+
+%% <BACKWARD-COMPATIBILLITY>
+open(Host, Port) when is_integer(Port) ->
+ open(Host, [{port, Port}]);
+%% </BACKWARD-COMPATIBILLITY>
+
+open(Host, Opts) when is_list(Opts) ->
+ try
+ {ok, StartOptions} = start_options(Opts),
+ {ok, OpenOptions} = open_options([{host, Host}|Opts]),
+ case start_link(StartOptions, []) of
+ {ok, Pid} ->
+ do_open(Pid, OpenOptions, tls_options(Opts));
+ Error1 ->
+ Error1
+ end
+ catch
+ throw:Error2 ->
+ 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}
+%% Pid = pid(),
+%% User = Pass = Acc = string()
+%%
+%% Description: Login with or without a supplied account name.
+%%--------------------------------------------------------------------------
+-spec user(Pid :: pid(),
+ User :: string(),
+ Pass :: string()) ->
+ 'ok' | {'error', Reason :: 'euser' | common_reason()}.
+
+user(Pid, User, Pass) ->
+ case {is_name_sane(User), is_name_sane(Pass)} of
+ {true, true} ->
+ call(Pid, {user, User, Pass}, atom);
+ _ ->
+ {error, euser}
+ end.
+
+-spec user(Pid :: pid(),
+ User :: string(),
+ Pass :: string(),
+ Acc :: string()) ->
+ 'ok' | {'error', Reason :: 'euser' | common_reason()}.
+
+user(Pid, User, Pass, Acc) ->
+ case {is_name_sane(User), is_name_sane(Pass), is_name_sane(Acc)} of
+ {true, true, true} ->
+ call(Pid, {user, User, Pass, Acc}, atom);
+ _ ->
+ {error, euser}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% account(Pid, Acc) -> ok | {error, eacct}
+%% Pid = pid()
+%% Acc= string()
+%%
+%% Description: Set a user Account.
+%%--------------------------------------------------------------------------
+
+-spec account(Pid :: pid(), Acc :: string()) ->
+ 'ok' | {'error', Reason :: 'eacct' | common_reason()}.
+
+account(Pid, Acc) ->
+ case is_name_sane(Acc) of
+ true ->
+ call(Pid, {account, Acc}, atom);
+ _ ->
+ {error, eacct}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% pwd(Pid) -> {ok, Dir} | {error, elogin} | {error, econn}
+%% Pid = pid()
+%% Dir = string()
+%%
+%% Description: Get the current working directory at remote server.
+%%--------------------------------------------------------------------------
+
+-spec pwd(Pid :: pid()) ->
+ {'ok', Dir :: string()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+pwd(Pid) ->
+ call(Pid, pwd, ctrl).
+
+
+%%--------------------------------------------------------------------------
+%% lpwd(Pid) -> {ok, Dir}
+%% Pid = pid()
+%% Dir = string()
+%%
+%% Description: Get the current working directory at local server.
+%%--------------------------------------------------------------------------
+
+-spec lpwd(Pid :: pid()) ->
+ {'ok', Dir :: string()}.
+
+lpwd(Pid) ->
+ call(Pid, lpwd, string).
+
+
+%%--------------------------------------------------------------------------
+%% cd(Pid, Dir) -> ok | {error, epath} | {error, elogin} | {error, econn}
+%% Pid = pid()
+%% Dir = string()
+%%
+%% Description: Change current working directory at remote server.
+%%--------------------------------------------------------------------------
+
+-spec cd(Pid :: pid(), Dir :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+cd(Pid, Dir) ->
+ case is_name_sane(Dir) of
+ true ->
+ call(Pid, {cd, Dir}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% lcd(Pid, Dir) -> ok | {error, epath}
+%% Pid = pid()
+%% Dir = string()
+%%
+%% Description: Change current working directory for the local client.
+%%--------------------------------------------------------------------------
+
+-spec lcd(Pid :: pid(), Dir :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason()}.
+
+lcd(Pid, Dir) ->
+ call(Pid, {lcd, Dir}, string).
+
+
+%%--------------------------------------------------------------------------
+%% ls(Pid) -> Result
+%% ls(Pid, <Dir>) -> Result
+%%
+%% Pid = pid()
+%% Dir = string()
+%% Result = {ok, Listing} | {error, Reason}
+%% Listing = string()
+%% Reason = epath | elogin | econn
+%%
+%% Description: Returns a list of files in long format.
+%%--------------------------------------------------------------------------
+
+-spec ls(Pid :: pid()) ->
+ {'ok', Listing :: string()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+ls(Pid) ->
+ ls(Pid, "").
+
+-spec ls(Pid :: pid(), Dir :: string()) ->
+ {'ok', Listing :: string()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+ls(Pid, Dir) ->
+ case is_name_sane(Dir) of
+ true ->
+ call(Pid, {dir, long, Dir}, string);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% nlist(Pid) -> Result
+%% nlist(Pid, Pathname) -> Result
+%%
+%% Pid = pid()
+%% Pathname = string()
+%% Result = {ok, Listing} | {error, Reason}
+%% Listing = string()
+%% Reason = epath | elogin | econn
+%%
+%% Description: Returns a list of files in short format
+%%--------------------------------------------------------------------------
+
+-spec nlist(Pid :: pid()) ->
+ {'ok', Listing :: string()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+nlist(Pid) ->
+ nlist(Pid, "").
+
+-spec nlist(Pid :: pid(), Pathname :: string()) ->
+ {'ok', Listing :: string()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+nlist(Pid, Dir) ->
+ case is_name_sane(Dir) of
+ true ->
+ call(Pid, {dir, short, Dir}, string);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% rename(Pid, Old, New) -> ok | {error, epath} | {error, elogin}
+%% | {error, econn}
+%% Pid = pid()
+%% CurrFile = NewFile = string()
+%%
+%% Description: Rename a file at remote server.
+%%--------------------------------------------------------------------------
+
+-spec rename(Pid :: pid(), Old :: string(), New :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+rename(Pid, Old, New) ->
+ case {is_name_sane(Old), is_name_sane(New)} of
+ {true, true} ->
+ call(Pid, {rename, Old, New}, string);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% delete(Pid, File) -> ok | {error, epath} | {error, elogin} |
+%% {error, econn}
+%% Pid = pid()
+%% File = string()
+%%
+%% Description: Remove file at remote server.
+%%--------------------------------------------------------------------------
+
+-spec delete(Pid :: pid(), File :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+delete(Pid, File) ->
+ case is_name_sane(File) of
+ true ->
+ call(Pid, {delete, File}, string);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% mkdir(Pid, Dir) -> ok | {error, epath} | {error, elogin} | {error, econn}
+%% Pid = pid(),
+%% Dir = string()
+%%
+%% Description: Make directory at remote server.
+%%--------------------------------------------------------------------------
+
+-spec mkdir(Pid :: pid(), Dir :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+mkdir(Pid, Dir) ->
+ case is_name_sane(Dir) of
+ true ->
+ call(Pid, {mkdir, Dir}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% rmdir(Pid, Dir) -> ok | {error, epath} | {error, elogin} | {error, econn}
+%% Pid = pid(),
+%% Dir = string()
+%%
+%% Description: Remove directory at remote server.
+%%--------------------------------------------------------------------------
+
+-spec rmdir(Pid :: pid(), Dir :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+rmdir(Pid, Dir) ->
+ case is_name_sane(Dir) of
+ true ->
+ call(Pid, {rmdir, Dir}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% type(Pid, Type) -> ok | {error, etype} | {error, elogin} | {error, econn}
+%% Pid = pid()
+%% Type = ascii | binary
+%%
+%% Description: Set transfer type.
+%%--------------------------------------------------------------------------
+
+-spec type(Pid :: pid(), Type :: ascii | binary) ->
+ 'ok' |
+ {'error', Reason :: 'etype' | restriction_reason() | common_reason()}.
+
+type(Pid, Type) ->
+ call(Pid, {type, Type}, atom).
+
+
+%%--------------------------------------------------------------------------
+%% recv(Pid, RemoteFileName [, LocalFileName]) -> ok | {error, epath} |
+%% {error, elogin} | {error, econn}
+%% Pid = pid()
+%% RemoteFileName = LocalFileName = string()
+%%
+%% Description: Transfer file from remote server.
+%%--------------------------------------------------------------------------
+
+-spec recv(Pid :: pid(), RemoteFileName :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() |
+ common_reason() |
+ file_write_error_reason()}.
+
+recv(Pid, RemotFileName) ->
+ recv(Pid, RemotFileName, RemotFileName).
+
+-spec recv(Pid :: pid(),
+ RemoteFileName :: string(),
+ LocalFileName :: string()) ->
+ 'ok' | {'error', Reason :: term()}.
+
+recv(Pid, RemotFileName, LocalFileName) ->
+ case is_name_sane(RemotFileName) of
+ true ->
+ call(Pid, {recv, RemotFileName, LocalFileName}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% recv_bin(Pid, RemoteFile) -> {ok, Bin} | {error, epath} | {error, elogin}
+%% | {error, econn}
+%% Pid = pid()
+%% RemoteFile = string()
+%% Bin = binary()
+%%
+%% Description: Transfer file from remote server into binary.
+%%--------------------------------------------------------------------------
+
+-spec recv_bin(Pid :: pid(),
+ RemoteFile :: string()) ->
+ {'ok', Bin :: binary()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+recv_bin(Pid, RemoteFile) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {recv_bin, RemoteFile}, bin);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% recv_chunk_start(Pid, RemoteFile) -> ok | {error, elogin} | {error, epath}
+%% | {error, econn}
+%% Pid = pid()
+%% RemoteFile = string()
+%%
+%% Description: Start receive of chunks of remote file.
+%%--------------------------------------------------------------------------
+
+-spec recv_chunk_start(Pid :: pid(),
+ RemoteFile :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+recv_chunk_start(Pid, RemoteFile) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {recv_chunk_start, RemoteFile}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% recv_chunk(Pid, RemoteFile) -> ok | {ok, Bin} | {error, Reason}
+%% Pid = pid()
+%% RemoteFile = string()
+%%
+%% Description: Transfer file from remote server into binary in chunks
+%%--------------------------------------------------------------------------
+
+-spec recv_chunk(Pid :: pid()) ->
+ 'ok' |
+ {'ok', Bin :: binary()} |
+ {'error', Reason :: restriction_reason() | common_reason()}.
+
+recv_chunk(Pid) ->
+ call(Pid, recv_chunk, atom).
+
+
+%%--------------------------------------------------------------------------
+%% send(Pid, LocalFileName [, RemotFileName]) -> ok | {error, epath}
+%% | {error, elogin}
+%% | {error, econn}
+%% Pid = pid()
+%% LocalFileName = RemotFileName = string()
+%%
+%% Description: Transfer file to remote server.
+%%--------------------------------------------------------------------------
+
+-spec send(Pid :: pid(), LocalFileName :: string()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+send(Pid, LocalFileName) ->
+ send(Pid, LocalFileName, LocalFileName).
+
+-spec send(Pid :: pid(),
+ LocalFileName :: string(),
+ RemoteFileName :: string()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+send(Pid, LocalFileName, RemotFileName) ->
+ case is_name_sane(RemotFileName) of
+ true ->
+ call(Pid, {send, LocalFileName, RemotFileName}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% send_bin(Pid, Bin, RemoteFile) -> ok | {error, epath} | {error, elogin}
+%% | {error, enotbinary} | {error, econn}
+%% Pid = pid()
+%% Bin = binary()
+%% RemoteFile = string()
+%%
+%% Description: Transfer a binary to a remote file.
+%%--------------------------------------------------------------------------
+
+-spec send_bin(Pid :: pid(), Bin :: binary(), RemoteFile :: string()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+send_bin(Pid, Bin, RemoteFile) when is_binary(Bin) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {send_bin, Bin, RemoteFile}, atom);
+ _ ->
+ {error, efnamena}
+ end;
+send_bin(_Pid, _Bin, _RemoteFile) ->
+ {error, enotbinary}.
+
+
+%%--------------------------------------------------------------------------
+%% send_chunk_start(Pid, RemoteFile) -> ok | {error, elogin} | {error, epath}
+%% | {error, econn}
+%% Pid = pid()
+%% RemoteFile = string()
+%%
+%% Description: Start transfer of chunks to remote file.
+%%--------------------------------------------------------------------------
+
+-spec send_chunk_start(Pid :: pid(), RemoteFile :: string()) ->
+ 'ok' | {'error', Reason :: restriction_reason() | common_reason()}.
+
+send_chunk_start(Pid, RemoteFile) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {send_chunk_start, RemoteFile}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% append_chunk_start(Pid, RemoteFile) -> ok | {error, elogin} |
+%% {error, epath} | {error, econn}
+%% Pid = pid()
+%% RemoteFile = string()
+%%
+%% Description: Start append chunks of data to remote file.
+%%--------------------------------------------------------------------------
+
+-spec append_chunk_start(Pid :: pid(), RemoteFile :: string()) ->
+ 'ok' | {'error', Reason :: term()}.
+
+append_chunk_start(Pid, RemoteFile) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {append_chunk_start, RemoteFile}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% send_chunk(Pid, Bin) -> ok | {error, elogin} | {error, enotbinary}
+%% | {error, echunk} | {error, econn}
+%% Pid = pid()
+%% Bin = binary().
+%%
+%% Purpose: Send chunk to remote file.
+%%--------------------------------------------------------------------------
+
+-spec send_chunk(Pid :: pid(), Bin :: binary()) ->
+ 'ok' |
+ {'error', Reason :: 'echunk' |
+ restriction_reason() |
+ common_reason()}.
+
+send_chunk(Pid, Bin) when is_binary(Bin) ->
+ call(Pid, {transfer_chunk, Bin}, atom);
+send_chunk(_Pid, _Bin) ->
+ {error, enotbinary}.
+
+
+%%--------------------------------------------------------------------------
+%% append_chunk(Pid, Bin) -> ok | {error, elogin} | {error, enotbinary}
+%% | {error, echunk} | {error, econn}
+%% Pid = pid()
+%% Bin = binary()
+%%
+%% Description: Append chunk to remote file.
+%%--------------------------------------------------------------------------
+
+-spec append_chunk(Pid :: pid(), Bin :: binary()) ->
+ 'ok' |
+ {'error', Reason :: 'echunk' |
+ restriction_reason() |
+ common_reason()}.
+
+append_chunk(Pid, Bin) when is_binary(Bin) ->
+ call(Pid, {transfer_chunk, Bin}, atom);
+append_chunk(_Pid, _Bin) ->
+ {error, enotbinary}.
+
+
+%%--------------------------------------------------------------------------
+%% send_chunk_end(Pid) -> ok | {error, elogin} | {error, echunk}
+%% | {error, econn}
+%% Pid = pid()
+%%
+%% Description: End sending of chunks to remote file.
+%%--------------------------------------------------------------------------
+
+-spec send_chunk_end(Pid :: pid()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+send_chunk_end(Pid) ->
+ call(Pid, chunk_end, atom).
+
+
+%%--------------------------------------------------------------------------
+%% append_chunk_end(Pid) -> ok | {error, elogin} | {error, echunk}
+%% | {error, econn}
+%% Pid = pid()
+%%
+%% Description: End appending of chunks to remote file.
+%%--------------------------------------------------------------------------
+
+-spec append_chunk_end(Pid :: pid()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+append_chunk_end(Pid) ->
+ call(Pid, chunk_end, atom).
+
+
+%%--------------------------------------------------------------------------
+%% append(Pid, LocalFileName [, RemotFileName]) -> ok | {error, epath}
+%% | {error, elogin}
+%% | {error, econn}
+%% Pid = pid()
+%% LocalFileName = RemotFileName = string()
+%%
+%% Description: Append the local file to the remote file
+%%--------------------------------------------------------------------------
+
+-spec append(Pid :: pid(), LocalFileName :: string()) ->
+ 'ok' |
+ {'error', Reason :: 'epath' |
+ 'elogin' |
+ 'etnospc' |
+ 'epnospc' |
+ 'efnamena' | common_reason()}.
+
+append(Pid, LocalFileName) ->
+ append(Pid, LocalFileName, LocalFileName).
+
+-spec append(Pid :: pid(),
+ LocalFileName :: string(),
+ RemoteFileName :: string()) ->
+ 'ok' | {'error', Reason :: term()}.
+
+append(Pid, LocalFileName, RemotFileName) ->
+ case is_name_sane(RemotFileName) of
+ true ->
+ call(Pid, {append, LocalFileName, RemotFileName}, atom);
+ _ ->
+ {error, efnamena}
+ end.
+
+
+%%--------------------------------------------------------------------------
+%% append_bin(Pid, Bin, RemoteFile) -> ok | {error, epath} | {error, elogin}
+%% | {error, enotbinary} | {error, econn}
+%% Pid = pid()
+%% Bin = binary()
+%% RemoteFile = string()
+%%
+%% Purpose: Append a binary to a remote file.
+%%--------------------------------------------------------------------------
+
+-spec append_bin(Pid :: pid(),
+ Bin :: binary(),
+ RemoteFile :: string()) ->
+ 'ok' |
+ {'error', Reason :: restriction_reason() |
+ common_reason() |
+ shortage_reason()}.
+
+append_bin(Pid, Bin, RemoteFile) when is_binary(Bin) ->
+ case is_name_sane(RemoteFile) of
+ true ->
+ call(Pid, {append_bin, Bin, RemoteFile}, atom);
+ _ ->
+ {error, efnamena}
+ end;
+append_bin(_Pid, _Bin, _RemoteFile) ->
+ {error, enotbinary}.
+
+
+%%--------------------------------------------------------------------------
+%% quote(Pid, Cmd) -> list()
+%% Pid = pid()
+%% Cmd = string()
+%%
+%% Description: Send arbitrary ftp command.
+%%--------------------------------------------------------------------------
+
+-spec quote(Pid :: pid(), Cmd :: string()) -> list().
+
+quote(Pid, Cmd) when is_list(Cmd) ->
+ call(Pid, {quote, Cmd}, atom).
+
+
+%%--------------------------------------------------------------------------
+%% close(Pid) -> ok
+%% Pid = pid()
+%%
+%% Description: End the ftp session.
+%%--------------------------------------------------------------------------
+
+-spec close(Pid :: pid()) -> 'ok'.
+
+close(Pid) ->
+ cast(Pid, close),
+ ok.
+
+
+%%--------------------------------------------------------------------------
+%% formaterror(Tag) -> string()
+%% Tag = atom() | {error, atom()}
+%%
+%% Description: Return diagnostics.
+%%--------------------------------------------------------------------------
+
+-spec formaterror(Tag :: term()) -> string().
+
+formaterror(Tag) ->
+ ftp_response:error_string(Tag).
+
+
+info(Pid) ->
+ call(Pid, info, list).
+
+
+%%--------------------------------------------------------------------------
+%% latest_ctrl_response(Pid) -> string()
+%% Pid = pid()
+%%
+%% Description: The latest received response from the server
+%%--------------------------------------------------------------------------
+
+-spec latest_ctrl_response(Pid :: pid()) -> string().
+
+latest_ctrl_response(Pid) ->
+ call(Pid, latest_ctrl_response, string).
+
+
+%%%========================================================================
+%%% gen_server callback functions
+%%%========================================================================
+
+%%-------------------------------------------------------------------------
+%% init(Args) -> {ok, State} | {ok, State, Timeout} | {stop, Reason}
+%% Description: Initiates the erlang process that manages a ftp connection.
+%%-------------------------------------------------------------------------
+init(Options) ->
+ process_flag(trap_exit, true),
+
+ %% Keep track of the client
+ {value, {client, Client}} = lists:keysearch(client, 1, Options),
+ erlang:monitor(process, Client),
+
+ %% Make sure inet is started
+ _ = inet_db:start(),
+
+ %% Where are we
+ {ok, Dir} = file:get_cwd(),
+
+ %% Maybe activate dbg
+ case key_search(debug, Options, disable) of
+ trace ->
+ dbg:tracer(),
+ dbg:p(all, [call]),
+ {ok, _} = dbg:tpl(ftp, [{'_', [], [{return_trace}]}]),
+ {ok, _} = dbg:tpl(ftp_response, [{'_', [], [{return_trace}]}]),
+ {ok, _} = dbg:tpl(ftp_progress, [{'_', [], [{return_trace}]}]),
+ ok;
+ debug ->
+ dbg:tracer(),
+ dbg:p(all, [call]),
+ {ok, _} = dbg:tp(ftp, [{'_', [], [{return_trace}]}]),
+ {ok, _} = dbg:tp(ftp_response, [{'_', [], [{return_trace}]}]),
+ {ok, _} = dbg:tp(ftp_progress, [{'_', [], [{return_trace}]}]),
+ ok;
+ _ ->
+ %% Keep silent
+ ok
+ end,
+
+ %% Verbose?
+ Verbose = key_search(verbose, Options, false),
+
+ %% IpFamily?
+ IpFamily = key_search(ipfamily, Options, inet),
+
+ State = #state{owner = Client,
+ verbose = Verbose,
+ ipfamily = IpFamily,
+ ldir = Dir},
+
+ %% Set process prio
+ Priority = key_search(priority, Options, low),
+ process_flag(priority, Priority),
+
+ %% And we are done
+ {ok, State}.
+
+
+%%--------------------------------------------------------------------------
+%% handle_call(Request, From, State) -> {reply, Reply, State} |
+%% {reply, Reply, State, Timeout} |
+%% {noreply, State} |
+%% {noreply, State, Timeout} |
+%% {stop, Reason, Reply, State} |
+%% Description: Handle incoming requests.
+%%-------------------------------------------------------------------------
+
+%% Anyone can ask this question
+handle_call({_, info}, _, #state{verbose = Verbose,
+ mode = Mode,
+ timeout = Timeout,
+ ipfamily = IpFamily,
+ csock = Socket,
+ progress = Progress} = State) ->
+ {ok, {_, LocalPort}} = sockname(Socket),
+ {ok, {Address, Port}} = peername(Socket),
+ Options = [{verbose, Verbose},
+ {ipfamily, IpFamily},
+ {mode, Mode},
+ {peer, Address},
+ {peer_port, Port},
+ {local_port, LocalPort},
+ {timeout, Timeout},
+ {progress, Progress}],
+ {reply, {ok, Options}, State};
+
+handle_call({_,latest_ctrl_response}, _, #state{latest_ctrl_response=Resp} = State) ->
+ {reply, {ok,Resp}, State};
+
+%% But everything else must come from the owner
+handle_call({Pid, _}, _, #state{owner = Owner} = State) when Owner =/= Pid ->
+ {reply, {error, not_connection_owner}, State};
+
+handle_call({_, {open, ip_comm, Opts}}, From, State) ->
+ case key_search(host, Opts, undefined) of
+ undefined ->
+ {stop, normal, {error, ehost}, State};
+ Host ->
+ Mode = key_search(mode, Opts, ?DEFAULT_MODE),
+ Port = key_search(port, Opts, ?FTP_PORT),
+ Timeout = key_search(timeout, Opts, ?CONNECTION_TIMEOUT),
+ 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,
+ ftp_extension = FtpExt},
+
+ case setup_ctrl_connection(Host, Port, Timeout, State2) of
+ {ok, State3, WaitTimeout} ->
+ {noreply, State3, WaitTimeout};
+ {error, _Reason} ->
+ gen_server:reply(From, {error, ehost}),
+ {stop, normal, State2#state{client = undefined}}
+ end
+ end;
+
+handle_call({_, {open, ip_comm, Host, Opts}}, From, State) ->
+ Mode = key_search(mode, Opts, ?DEFAULT_MODE),
+ Port = key_search(port, Opts, ?FTP_PORT),
+ 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,
+ ftp_extension = FtpExt},
+
+ case setup_ctrl_connection(Host, Port, Timeout, State2) of
+ {ok, State3, WaitTimeout} ->
+ {noreply, State3, WaitTimeout};
+ {error, _Reason} ->
+ gen_server:reply(From, {error, ehost}),
+ {stop, normal, State2#state{client = undefined}}
+ end;
+
+handle_call({_, {open, tls_upgrade, TLSOptions}}, From, State) ->
+ _ = send_ctrl_message(State, mk_cmd("AUTH TLS", [])),
+ activate_ctrl_connection(State),
+ {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});
+
+handle_call({_, {user, User, Password, Acc}}, From,
+ #state{csock = CSock} = State) when (CSock =/= undefined) ->
+ handle_user(User, Password, Acc, State#state{client = From});
+
+handle_call({_, {account, Acc}}, From, State)->
+ handle_user_account(Acc, State#state{client = From});
+
+handle_call({_, pwd}, From, #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("PWD", [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From, caller = pwd}};
+
+handle_call({_, lpwd}, From, #state{ldir = LDir} = State) ->
+ {reply, {ok, LDir}, State#state{client = From}};
+
+handle_call({_, {cd, Dir}}, From, #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("CWD ~s", [Dir])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From, caller = cd}};
+
+handle_call({_,{lcd, Dir}}, _From, #state{ldir = LDir0} = State) ->
+ LDir = filename:absname(Dir, LDir0),
+ case file:read_file_info(LDir) of %% FIX better check that LDir is a dir.
+ {ok, _ } ->
+ {reply, ok, State#state{ldir = LDir}};
+ _ ->
+ {reply, {error, epath}, State}
+ end;
+
+handle_call({_, {dir, Len, Dir}}, {_Pid, _} = From,
+ #state{chunk = false} = State) ->
+ setup_data_connection(State#state{caller = {dir, Dir, Len},
+ client = From});
+handle_call({_, {rename, CurrFile, NewFile}}, From,
+ #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("RNFR ~s", [CurrFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {rename, NewFile}, client = From}};
+
+handle_call({_, {delete, File}}, {_Pid, _} = From,
+ #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("DELE ~s", [File])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From}};
+
+handle_call({_, {mkdir, Dir}}, From, #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("MKD ~s", [Dir])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From}};
+
+handle_call({_,{rmdir, Dir}}, From, #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("RMD ~s", [Dir])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From}};
+
+handle_call({_,{type, Type}}, From, #state{chunk = false} = State) ->
+ case Type of
+ ascii ->
+ _ = send_ctrl_message(State, mk_cmd("TYPE A", [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = type, type = ascii,
+ client = From}};
+ binary ->
+ _ = send_ctrl_message(State, mk_cmd("TYPE I", [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = type, type = binary,
+ client = From}};
+ _ ->
+ {reply, {error, etype}, State}
+ end;
+
+handle_call({_,{recv, RemoteFile, LocalFile}}, From,
+ #state{chunk = false, ldir = LocalDir} = State) ->
+ progress_report({remote_file, RemoteFile}, State),
+ NewLocalFile = filename:absname(LocalFile, LocalDir),
+
+ case file_open(NewLocalFile, write) of
+ {ok, Fd} ->
+ setup_data_connection(State#state{client = From,
+ caller =
+ {recv_file,
+ RemoteFile, Fd}});
+ {error, _What} ->
+ {reply, {error, epath}, State}
+ end;
+
+handle_call({_, {recv_bin, RemoteFile}}, From, #state{chunk = false} =
+ State) ->
+ setup_data_connection(State#state{caller = {recv_bin, RemoteFile},
+ client = From});
+
+handle_call({_,{recv_chunk_start, RemoteFile}}, From, #state{chunk = false}
+ = State) ->
+ setup_data_connection(State#state{caller = {start_chunk_transfer,
+ "RETR", RemoteFile},
+ client = From});
+
+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,
+ caller = #recv_chunk_closing{dconn_closed = true,
+ pos_compl_received = true
+ }
+ } = State0) ->
+ %% The ftp:recv_chunk call was the last event we waited for, finnish and clean up
+ ?DBG("recv_chunk_closing ftp:recv_chunk, last event",[]),
+ activate_ctrl_connection(State0),
+ {reply, ok, State0#state{caller = undefined,
+ chunk = false,
+ client = undefined}};
+
+handle_call({_, recv_chunk}, From, #state{chunk = true,
+ caller = #recv_chunk_closing{} = R
+ } = State) ->
+ %% Waiting for more, don't care what
+ ?DBG("recv_chunk_closing ftp:recv_chunk, get more",[]),
+ {noreply, State#state{client = From, caller = R#recv_chunk_closing{client_called_us=true}}};
+
+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,
+ #state{chunk = false, ldir = LocalDir} = State) ->
+ progress_report({local_file, filename:absname(LocalFile, LocalDir)},
+ State),
+ setup_data_connection(State#state{caller = {transfer_file,
+ {"STOR",
+ LocalFile, RemoteFile}},
+ client = From});
+handle_call({_, {append, LocalFile, RemoteFile}}, From,
+ #state{chunk = false} = State) ->
+ setup_data_connection(State#state{caller = {transfer_file,
+ {"APPE",
+ LocalFile, RemoteFile}},
+ client = From});
+handle_call({_, {send_bin, Bin, RemoteFile}}, From,
+ #state{chunk = false} = State) ->
+ setup_data_connection(State#state{caller = {transfer_data,
+ {"STOR", Bin, RemoteFile}},
+ client = From});
+handle_call({_,{append_bin, Bin, RemoteFile}}, From,
+ #state{chunk = false} = State) ->
+ setup_data_connection(State#state{caller = {transfer_data,
+ {"APPE", Bin, RemoteFile}},
+ client = From});
+handle_call({_, {send_chunk_start, RemoteFile}}, From, #state{chunk = false}
+ = State) ->
+ setup_data_connection(State#state{caller = {start_chunk_transfer,
+ "STOR", RemoteFile},
+ client = From});
+handle_call({_, {append_chunk_start, RemoteFile}}, From, #state{chunk = false}
+ = State) ->
+ setup_data_connection(State#state{caller = {start_chunk_transfer,
+ "APPE", RemoteFile},
+ client = From});
+handle_call({_, {transfer_chunk, Bin}}, _, #state{chunk = true} = State) ->
+ send_data_message(State, Bin),
+ {reply, ok, State};
+
+handle_call({_, {transfer_chunk, _}}, _, #state{chunk = false} = State) ->
+ {reply, {error, echunk}, State};
+
+handle_call({_, chunk_end}, From, #state{chunk = true} = State) ->
+ close_data_connection(State),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From, dsock = undefined,
+ caller = end_chunk_transfer, chunk = false}};
+
+handle_call({_, chunk_end}, _, #state{chunk = false} = State) ->
+ {reply, {error, echunk}, State};
+
+handle_call({_, {quote, Cmd}}, From, #state{chunk = false} = State) ->
+ _ = send_ctrl_message(State, mk_cmd(Cmd, [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{client = From, caller = quote}};
+
+handle_call({_, _Req}, _From, #state{csock = CSock} = State)
+ when (CSock =:= undefined) ->
+ {reply, {error, not_connected}, State};
+
+handle_call(_, _, #state{chunk = true} = State) ->
+ {reply, {error, echunk}, State};
+
+%% Catch all - This can only happen if the application programmer writes
+%% really bad code that violates the API.
+handle_call(Request, _Timeout, State) ->
+ {stop, {'API_violation_connection_closed', Request},
+ {error, {connection_terminated, 'API_violation'}}, State}.
+
+%%--------------------------------------------------------------------------
+%% handle_cast(Request, State) -> {noreply, State} |
+%% {noreply, State, Timeout} |
+%% {stop, Reason, State}
+%% Description: Handles cast messages.
+%%-------------------------------------------------------------------------
+handle_cast({Pid, close}, #state{owner = Pid} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("QUIT", [])),
+ close_ctrl_connection(State),
+ close_data_connection(State),
+ {stop, normal, State#state{csock = undefined, dsock = undefined}};
+
+handle_cast({Pid, close}, State) ->
+ Report = io_lib:format("A none owner process ~p tried to close an "
+ "ftp connection: ~n", [Pid]),
+ error_logger:info_report(Report),
+ {noreply, State};
+
+%% Catch all - This can oly happen if the application programmer writes
+%% really bad code that violates the API.
+handle_cast(Msg, State) ->
+ {stop, {'API_violation_connection_closed', Msg}, State}.
+
+%%--------------------------------------------------------------------------
+%% handle_info(Msg, State) -> {noreply, State} | {noreply, State, Timeout} |
+%% {stop, Reason, State}
+%% Description: Handles tcp messages from the ftp-server.
+%% Note: The order of the function clauses is significant.
+%%--------------------------------------------------------------------------
+
+handle_info(timeout, #state{caller = open} = State) ->
+ {stop, timeout, State};
+
+handle_info(timeout, State) ->
+ {noreply, State};
+
+%%% Data socket messages %%%
+handle_info({Trpt, Socket, Data},
+ #state{dsock = {Trpt,Socket},
+ caller = {recv_file, Fd}} = State0) when Trpt==tcp;Trpt==ssl ->
+ ?DBG('L~p --data ~p ----> ~s~p~n',[?LINE,Socket,Data,State0]),
+ ok = file_write(binary_to_list(Data), Fd),
+ progress_report({binary, Data}, State0),
+ State = activate_data_connection(State0),
+ {noreply, State};
+
+handle_info({Trpt, Socket, Data}, #state{dsock = {Trpt,Socket}, client = From,
+ caller = recv_chunk}
+ = State) when Trpt==tcp;Trpt==ssl ->
+ ?DBG('L~p --data ~p ----> ~s~p~n',[?LINE,Socket,Data,State]),
+ gen_server:reply(From, {ok, Data}),
+ {noreply, State#state{client = undefined, data = <<>>}};
+
+handle_info({Trpt, Socket, Data}, #state{dsock = {Trpt,Socket}} = State0) when Trpt==tcp;Trpt==ssl ->
+ ?DBG('L~p --data ~p ----> ~s~p~n',[?LINE,Socket,Data,State0]),
+ State = activate_data_connection(State0),
+ {noreply, State#state{data = <<(State#state.data)/binary,
+ Data/binary>>}};
+
+handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket},
+ caller = {recv_file, Fd}} = State)
+ when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} ->
+ file_close(Fd),
+ progress_report({transfer_size, 0}, State),
+ activate_ctrl_connection(State),
+ ?DBG("Data channel close",[]),
+ {noreply, State#state{dsock = undefined, data = <<>>}};
+
+handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket},
+ client = Client,
+ caller = recv_chunk} = State)
+ when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} ->
+ ?DBG("Data channel close recv_chunk",[]),
+ activate_ctrl_connection(State),
+ {noreply, State#state{dsock = undefined,
+ caller = #recv_chunk_closing{dconn_closed = true,
+ client_called_us = Client =/= undefined}
+ }};
+
+handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, caller = recv_bin,
+ data = Data} = State)
+ when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} ->
+ ?DBG("Data channel close",[]),
+ activate_ctrl_connection(State),
+ {noreply, State#state{dsock = undefined, data = <<>>,
+ caller = {recv_bin, Data}}};
+
+handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, data = Data,
+ caller = {handle_dir_result, Dir}}
+ = State) when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} ->
+ ?DBG("Data channel close",[]),
+ activate_ctrl_connection(State),
+ {noreply, State#state{dsock = undefined,
+ caller = {handle_dir_result, Dir, Data},
+% data = <<?CR,?LF>>}};
+ data = <<>>}};
+
+handle_info({Err, Socket, Reason}, #state{dsock = {Trpt,Socket},
+ client = From} = State)
+ when {Err,Trpt}=={tcp_error,tcp} ; {Err,Trpt}=={ssl_error,ssl} ->
+ gen_server:reply(From, {error, Reason}),
+ close_data_connection(State),
+ {noreply, State#state{dsock = undefined, client = undefined,
+ data = <<>>, caller = undefined, chunk = false}};
+
+%%% Ctrl socket messages %%%
+handle_info({Transport, Socket, Data}, #state{csock = {Transport, Socket},
+ verbose = Verbose,
+ caller = Caller,
+ client = From,
+ ctrl_data = {CtrlData, AccLines,
+ LineStatus}}
+ = State) ->
+ ?DBG('--ctrl ~p ----> ~s~p~n',[Socket,<<CtrlData/binary, Data/binary>>,State]),
+ case ftp_response:parse_lines(<<CtrlData/binary, Data/binary>>,
+ AccLines, LineStatus) of
+ {ok, Lines, NextMsgData} ->
+ verbose(Lines, Verbose, 'receive'),
+ CtrlResult = ftp_response:interpret(Lines),
+ case Caller of
+ quote ->
+ gen_server:reply(From, string:tokens(Lines, [?CR, ?LF])),
+ {noreply, State#state{client = undefined,
+ caller = undefined,
+ latest_ctrl_response = Lines,
+ ctrl_data = {NextMsgData, [],
+ start}}};
+ _ ->
+ ?DBG(' ...handle_ctrl_result(~p,...) ctrl_data=~p~n',[CtrlResult,{NextMsgData, [], start}]),
+ handle_ctrl_result(CtrlResult,
+ State#state{latest_ctrl_response = Lines,
+ ctrl_data =
+ {NextMsgData, [], start}})
+ end;
+ {continue, NewCtrlData} ->
+ ?DBG(' ...Continue... ctrl_data=~p~n',[NewCtrlData]),
+ activate_ctrl_connection(State),
+ {noreply, State#state{ctrl_data = NewCtrlData}}
+ end;
+
+%% If the server closes the control channel it is
+%% the expected behavior that connection process terminates.
+handle_info({Cls, Socket}, #state{csock = {Trpt, Socket}})
+ when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} ->
+ exit(normal); %% User will get error message from terminate/2
+
+handle_info({Err, Socket, Reason}, _) when Err==tcp_error ; Err==ssl_error ->
+ Report =
+ io_lib:format("~p on socket: ~p for reason: ~p~n",
+ [Err, Socket, Reason]),
+ error_logger:error_report(Report),
+ %% 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
+
+%% Monitor messages - if the process owning the ftp connection goes
+%% down there is no point in continuing.
+handle_info({'DOWN', _Ref, _Type, _Process, normal}, State) ->
+ {stop, normal, State#state{client = undefined}};
+
+handle_info({'DOWN', _Ref, _Type, _Process, shutdown}, State) ->
+ {stop, normal, State#state{client = undefined}};
+
+handle_info({'DOWN', _Ref, _Type, _Process, timeout}, State) ->
+ {stop, normal, State#state{client = undefined}};
+
+handle_info({'DOWN', _Ref, _Type, Process, Reason}, State) ->
+ {stop, {stopped, {'EXIT', Process, Reason}},
+ State#state{client = undefined}};
+
+handle_info({'EXIT', Pid, Reason}, #state{progress = Pid} = State) ->
+ Report = io_lib:format("Progress reporting stopped for reason ~p~n",
+ [Reason]),
+ error_logger:info_report(Report),
+ {noreply, State#state{progress = ignore}};
+
+%% Catch all - throws away unknown messages (This could happen by "accident"
+%% so we do not want to crash, but we make a log entry as it is an
+%% unwanted behaviour.)
+handle_info(Info, State) ->
+ Report = io_lib:format("ftp : ~p : Unexpected message: ~p~nState: ~p~n",
+ [self(), Info, State]),
+ error_logger:info_report(Report),
+ {noreply, State}.
+
+%%--------------------------------------------------------------------------
+%% terminate/2 and code_change/3
+%%--------------------------------------------------------------------------
+terminate(normal, State) ->
+ %% If terminate reason =/= normal the progress reporting process will
+ %% be killed by the exit signal.
+ progress_report(stop, State),
+ do_terminate({error, econn}, State);
+terminate(Reason, State) ->
+ Report = io_lib:format("Ftp connection closed due to: ~p~n", [Reason]),
+ error_logger:error_report(Report),
+ do_terminate({error, eclosed}, State).
+
+do_terminate(ErrorMsg, State) ->
+ close_data_connection(State),
+ close_ctrl_connection(State),
+ case State#state.client of
+ undefined ->
+ ok;
+ From ->
+ gen_server:reply(From, ErrorMsg)
+ end,
+ ok.
+
+code_change(_Vsn, State1, upgrade_from_pre_5_12) ->
+ {state, CSock, DSock, Verbose, LDir, Type, Chunk, Mode, Timeout,
+ Data, CtrlData, Owner, Client, Caller, IPv6Disable, Progress} = State1,
+ IpFamily =
+ if
+ (IPv6Disable =:= true) ->
+ inet;
+ true ->
+ inet6fb4
+ end,
+ State2 = #state{csock = CSock,
+ dsock = DSock,
+ verbose = Verbose,
+ ldir = LDir,
+ type = Type,
+ chunk = Chunk,
+ mode = Mode,
+ timeout = Timeout,
+ data = Data,
+ ctrl_data = CtrlData,
+ owner = Owner,
+ client = Client,
+ caller = Caller,
+ ipfamily = IpFamily,
+ progress = Progress},
+ {ok, State2};
+
+code_change(_Vsn, State1, downgrade_to_pre_5_12) ->
+ #state{csock = CSock,
+ dsock = DSock,
+ verbose = Verbose,
+ ldir = LDir,
+ type = Type,
+ chunk = Chunk,
+ mode = Mode,
+ timeout = Timeout,
+ data = Data,
+ ctrl_data = CtrlData,
+ owner = Owner,
+ client = Client,
+ caller = Caller,
+ ipfamily = IpFamily,
+ progress = Progress} = State1,
+ IPv6Disable =
+ if
+ (IpFamily =:= inet) ->
+ true;
+ true ->
+ false
+ end,
+ State2 =
+ {state, CSock, DSock, Verbose, LDir, Type, Chunk, Mode, Timeout,
+ Data, CtrlData, Owner, Client, Caller, IPv6Disable, Progress},
+ {ok, State2};
+
+code_change(_Vsn, State, _Extra) ->
+ {ok, State}.
+
+
+%%%=========================================================================
+%% Start/stop
+%%%=========================================================================
+%%--------------------------------------------------------------------------
+%% start_link([Opts, GenServerOptions]) -> {ok, Pid} | {error, Reason}
+%%
+%% Description: Callback function for the ftp supervisor. It is called
+%% : when start_service/1 calls ftp_sup:start_child/1 to start an
+%% : instance of the ftp process. Also called by start_standalone/1
+%%--------------------------------------------------------------------------
+start_link([Opts, GenServerOptions]) ->
+ start_link(Opts, GenServerOptions).
+
+start_link(Opts, GenServerOptions) ->
+ case lists:keysearch(client, 1, Opts) of
+ {value, _} ->
+ %% Via the supervisor
+ gen_server:start_link(?MODULE, Opts, GenServerOptions);
+ false ->
+ Opts2 = [{client, self()} | Opts],
+ gen_server:start_link(?MODULE, Opts2, GenServerOptions)
+ end.
+
+
+%%% Stop functionality is handled by close/1
+
+%%%========================================================================
+%%% Internal functions
+%%%========================================================================
+
+%%--------------------------------------------------------------------------
+%%% Help functions to handle_call and/or handle_ctrl_result
+%%--------------------------------------------------------------------------
+%% User handling
+handle_user(User, Password, Acc, State) ->
+ _ = send_ctrl_message(State, mk_cmd("USER ~s", [User])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {handle_user, Password, Acc}}}.
+
+handle_user_passwd(Password, Acc, State) ->
+ _ = send_ctrl_message(State, mk_cmd("PASS ~s", [Password])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {handle_user_passwd, Acc}}}.
+
+handle_user_account(Acc, State) ->
+ _ = send_ctrl_message(State, mk_cmd("ACCT ~s", [Acc])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = handle_user_account}}.
+
+
+%%--------------------------------------------------------------------------
+%% handle_ctrl_result
+%%--------------------------------------------------------------------------
+handle_ctrl_result({tls_upgrade, _}, #state{csock = {tcp, Socket},
+ tls_options = TLSOptions,
+ timeout = Timeout,
+ caller = open, client = From}
+ = State0) ->
+ ?DBG('<--ctrl ssl:connect(~p, ~p)~n~p~n',[Socket,TLSOptions,State0]),
+ case ssl:connect(Socket, TLSOptions, Timeout) of
+ {ok, TLSSocket} ->
+ State = State0#state{csock = {ssl,TLSSocket}},
+ _ = send_ctrl_message(State, mk_cmd("PBSZ 0", [])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{tls_upgrading_data_connection = {true, pbsz}} };
+ {error, _} = Error ->
+ gen_server:reply(From, {Error, self()}),
+ {stop, normal, State0#state{client = undefined,
+ caller = undefined,
+ tls_upgrading_data_connection = false}}
+ end;
+
+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},
+ client = From} = State) ->
+ gen_server:reply(From, {ok, self()}),
+ {noreply, State#state{client = undefined,
+ caller = undefined,
+ tls_upgrading_data_connection = false}};
+
+handle_ctrl_result({pos_compl, _}, #state{caller = open, client = From}
+ = State) ->
+ gen_server:reply(From, {ok, self()}),
+ {noreply, State#state{client = undefined,
+ caller = undefined }};
+handle_ctrl_result({_, Lines}, #state{caller = open} = State) ->
+ ctrl_result_response(econn, State, {error, Lines});
+
+%%--------------------------------------------------------------------------
+%% Data connection setup active mode
+handle_ctrl_result({pos_compl, _Lines},
+ #state{mode = active,
+ caller = {setup_data_connection,
+ {LSock, Caller}}} = State) ->
+ handle_caller(State#state{caller = Caller, dsock = {lsock, LSock}});
+
+handle_ctrl_result({Status, _Lines},
+ #state{mode = active,
+ caller = {setup_data_connection, {LSock, _}}}
+ = State) ->
+ close_connection({tcp,LSock}),
+ ctrl_result_response(Status, State, {error, Status});
+
+%% Data connection setup passive mode
+handle_ctrl_result({pos_compl, Lines},
+ #state{mode = passive,
+ ipfamily = inet6,
+ client = From,
+ caller = {setup_data_connection, Caller},
+ csock = CSock,
+ timeout = Timeout}
+ = State) ->
+ [_, PortStr | _] = lists:reverse(string:tokens(Lines, "|")),
+ {ok, {IP, _}} = peername(CSock),
+ 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;
+
+handle_ctrl_result({pos_compl, Lines},
+ #state{mode = passive,
+ ipfamily = inet,
+ client = From,
+ caller = {setup_data_connection, Caller},
+ timeout = Timeout,
+ ftp_extension = false} = State) ->
+
+ {_, [?LEFT_PAREN | Rest]} =
+ lists:splitwith(fun(?LEFT_PAREN) -> false; (_) -> true end, Lines),
+ {NewPortAddr, _} =
+ lists:splitwith(fun(?RIGHT_PAREN) -> false; (_) -> true end, Rest),
+ [A1, A2, A3, A4, P1, P2] =
+ lists:map(fun(X) -> list_to_integer(X) end,
+ string:tokens(NewPortAddr, [$,])),
+ IP = {A1, A2, A3, A4},
+ Port = (P1 * 256) + P2,
+
+ ?DBG('<--data tcp connect to ~p:~p, Caller=~p~n',[IP,Port,Caller]),
+ case connect(IP, Port, 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;
+
+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,
+ caller = {setup_data_connection, Caller}} = State) ->
+ setup_data_connection(State#state{mode = active, caller = Caller});
+
+
+%%--------------------------------------------------------------------------
+%% User handling
+handle_ctrl_result({pos_interm, _},
+ #state{caller = {handle_user, PassWord, Acc}} = State) ->
+ handle_user_passwd(PassWord, Acc, State);
+handle_ctrl_result({Status, _},
+ #state{caller = {handle_user, _, _}} = State) ->
+ ctrl_result_response(Status, State, {error, euser});
+
+%% Accounts
+handle_ctrl_result({pos_interm_acct, _},
+ #state{caller = {handle_user_passwd, Acc}} = State)
+ when Acc =/= "" ->
+ handle_user_account(Acc, State);
+handle_ctrl_result({Status, _},
+ #state{caller = {handle_user_passwd, _}} = State) ->
+ ctrl_result_response(Status, State, {error, euser});
+
+%%--------------------------------------------------------------------------
+%% Print current working directory
+handle_ctrl_result({pos_compl, Lines},
+ #state{caller = pwd, client = From} = State) ->
+ Dir = pwd_result(Lines),
+ gen_server:reply(From, {ok, Dir}),
+ {noreply, State#state{client = undefined, caller = undefined}};
+
+%%--------------------------------------------------------------------------
+%% Directory listing
+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 State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+handle_ctrl_result({pos_compl, _}, #state{caller = {handle_dir_result, Dir,
+ Data}, client = From}
+ = State) ->
+ case Dir of
+ "" -> % Current directory
+ gen_server:reply(From, {ok, Data}),
+ {noreply, State#state{client = undefined,
+ caller = undefined}};
+ _ ->
+ %% <WTF>
+ %% Dir cannot be assumed to be a dir. It is a string that
+ %% could be a dir, but could also be a file or even a string
+ %% containing wildcards (*).
+ %%
+ %% %% If there is only one line it might be a directory with one
+ %% %% file but it might be an error message that the directory
+ %% %% was not found. So in this case we have to endure a little
+ %% %% overhead to be able to give a good return value. Alas not
+ %% %% all ftp implementations behave the same and returning
+ %% %% an error string is allowed by the FTP RFC.
+ %% case lists:dropwhile(fun(?CR) -> false;(_) -> true end,
+ %% binary_to_list(Data)) of
+ %% L when (L =:= [?CR, ?LF]) orelse (L =:= []) ->
+ %% send_ctrl_message(State, mk_cmd("PWD", [])),
+ %% activate_ctrl_connection(State),
+ %% {noreply,
+ %% State#state{caller = {handle_dir_data, Dir, Data}}};
+ %% _ ->
+ %% gen_server:reply(From, {ok, Data}),
+ %% {noreply, State#state{client = undefined,
+ %% caller = undefined}}
+ %% end
+ %% </WTF>
+ gen_server:reply(From, {ok, Data}),
+ {noreply, State#state{client = undefined,
+ caller = undefined}}
+ end;
+
+handle_ctrl_result({pos_compl, Lines},
+ #state{caller = {handle_dir_data, Dir, DirData}} =
+ State) ->
+ OldDir = pwd_result(Lines),
+ _ = send_ctrl_message(State, mk_cmd("CWD ~s", [Dir])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {handle_dir_data_second_phase, OldDir,
+ DirData}}};
+handle_ctrl_result({Status, _},
+ #state{caller = {handle_dir_data, _, _}} = State) ->
+ ctrl_result_response(Status, State, {error, epath});
+
+handle_ctrl_result(S={_Status, _},
+ #state{caller = {handle_dir_result, _, _}} = State) ->
+ %% OTP-5731, macosx
+ ctrl_result_response(S, State, {error, epath});
+
+handle_ctrl_result({pos_compl, _},
+ #state{caller = {handle_dir_data_second_phase, OldDir,
+ DirData}} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("CWD ~s", [OldDir])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {handle_dir_data_third_phase, DirData}}};
+handle_ctrl_result({Status, _},
+ #state{caller = {handle_dir_data_second_phase, _, _}}
+ = State) ->
+ ctrl_result_response(Status, State, {error, epath});
+handle_ctrl_result(_, #state{caller = {handle_dir_data_third_phase, DirData},
+ client = From} = State) ->
+ gen_server:reply(From, {ok, DirData}),
+ {noreply, State#state{client = undefined, caller = undefined}};
+
+handle_ctrl_result({Status, _}, #state{caller = cd} = State) ->
+ ctrl_result_response(Status, State, {error, Status});
+
+handle_ctrl_result(Status={epath, _}, #state{caller = {dir,_}} = State) ->
+ ctrl_result_response(Status, State, {error, epath});
+
+%%--------------------------------------------------------------------------
+%% File renaming
+handle_ctrl_result({pos_interm, _}, #state{caller = {rename, NewFile}}
+ = State) ->
+ _ = send_ctrl_message(State, mk_cmd("RNTO ~s", [NewFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = rename_second_phase}};
+
+handle_ctrl_result({Status, _},
+ #state{caller = {rename, _}} = State) ->
+ ctrl_result_response(Status, State, {error, Status});
+
+handle_ctrl_result({Status, _},
+ #state{caller = rename_second_phase} = State) ->
+ ctrl_result_response(Status, State, {error, Status});
+
+%%--------------------------------------------------------------------------
+%% File handling - recv_bin
+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 State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+handle_ctrl_result({pos_compl, _}, #state{caller = {recv_bin, Data},
+ client = From} = State) ->
+ gen_server:reply(From, {ok, Data}),
+ close_data_connection(State),
+ {noreply, State#state{client = undefined, caller = undefined}};
+
+handle_ctrl_result({Status, _}, #state{caller = recv_bin} = State) ->
+ close_data_connection(State),
+ ctrl_result_response(Status, State#state{dsock = undefined},
+ {error, epath});
+
+handle_ctrl_result({Status, _}, #state{caller = {recv_bin, _}} = State) ->
+ close_data_connection(State),
+ ctrl_result_response(Status, State#state{dsock = undefined},
+ {error, epath});
+%%--------------------------------------------------------------------------
+%% File handling - start_chunk_transfer
+handle_ctrl_result({pos_prel, _}, #state{client = From,
+ caller = start_chunk_transfer}
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ State = start_chunk(State1),
+ {noreply, State};
+ {error, _Reason} = ERROR ->
+ case State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+%%--------------------------------------------------------------------------
+%% File handling - chunk_transfer complete
+
+handle_ctrl_result({pos_compl, _}, #state{client = From,
+ caller = #recv_chunk_closing{dconn_closed = true,
+ client_called_us = true,
+ pos_compl_received = false
+ }}
+ = State0) when From =/= undefined ->
+ %% The pos_compl was the last event we waited for, finnish and clean up
+ ?DBG("recv_chunk_closing pos_compl, last event",[]),
+ gen_server:reply(From, ok),
+ activate_ctrl_connection(State0),
+ {noreply, State0#state{caller = undefined,
+ chunk = false,
+ client = undefined}};
+
+handle_ctrl_result({pos_compl, _}, #state{caller = #recv_chunk_closing{}=R}
+ = State0) ->
+ %% Waiting for more, don't care what
+ ?DBG("recv_chunk_closing pos_compl, wait more",[]),
+ {noreply, State0#state{caller = R#recv_chunk_closing{pos_compl_received=true}}};
+
+
+%%--------------------------------------------------------------------------
+%% File handling - recv_file
+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 State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+handle_ctrl_result({Status, _}, #state{caller = {recv_file, Fd}} = State) ->
+ file_close(Fd),
+ close_data_connection(State),
+ ctrl_result_response(Status, State#state{dsock = undefined},
+ {error, epath});
+%%--------------------------------------------------------------------------
+%% File handling - transfer_*
+handle_ctrl_result({pos_prel, _}, #state{caller = {transfer_file, Fd}}
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State1} ->
+ send_file(State1, Fd);
+ {error, _Reason} = ERROR ->
+ case State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+handle_ctrl_result({pos_prel, _}, #state{caller = {transfer_data, Bin}}
+ = State0) ->
+ case accept_data_connection(State0) of
+ {ok, State} ->
+ send_bin(State, Bin);
+ {error, _Reason} = ERROR ->
+ case State0#state.client of
+ undefined ->
+ {stop, ERROR, State0};
+ From ->
+ gen_server:reply(From, ERROR),
+ {stop, normal, State0#state{client = undefined}}
+ end
+ end;
+
+%%--------------------------------------------------------------------------
+%% Default
+handle_ctrl_result({Status, _Lines}, #state{client = From} = State)
+ when From =/= undefined ->
+ ctrl_result_response(Status, State, {error, Status}).
+
+%%--------------------------------------------------------------------------
+%% Help functions to handle_ctrl_result
+%%--------------------------------------------------------------------------
+ctrl_result_response(pos_compl, #state{client = From} = State, _) ->
+ gen_server:reply(From, ok),
+ {noreply, State#state{client = undefined, caller = undefined}};
+
+ctrl_result_response(enofile, #state{client = From} = State, _) ->
+ gen_server:reply(From, {error, enofile}),
+ {noreply, State#state{client = undefined, caller = undefined}};
+
+ctrl_result_response(Status, #state{client = From} = State, _)
+ when (Status =:= etnospc) orelse
+ (Status =:= epnospc) orelse
+ (Status =:= efnamena) orelse
+ (Status =:= econn) ->
+ gen_server:reply(From, {error, Status}),
+%% {stop, normal, {error, Status}, State#state{client = undefined}};
+ {stop, normal, State#state{client = undefined}};
+
+ctrl_result_response(_, #state{client = From} = State, ErrorMsg) ->
+ gen_server:reply(From, ErrorMsg),
+ {noreply, State#state{client = undefined, caller = undefined}}.
+
+%%--------------------------------------------------------------------------
+handle_caller(#state{caller = {dir, Dir, Len}} = State) ->
+ Cmd = case Len of
+ short -> "NLST";
+ long -> "LIST"
+ end,
+ _ = case Dir of
+ "" ->
+ send_ctrl_message(State, mk_cmd(Cmd, ""));
+ _ ->
+ send_ctrl_message(State, mk_cmd(Cmd ++ " ~s", [Dir]))
+ end,
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {dir, Dir}}};
+
+handle_caller(#state{caller = {recv_bin, RemoteFile}} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("RETR ~s", [RemoteFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = recv_bin}};
+
+handle_caller(#state{caller = {start_chunk_transfer, Cmd, RemoteFile}} =
+ State) ->
+ _ = send_ctrl_message(State, mk_cmd("~s ~s", [Cmd, RemoteFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = start_chunk_transfer}};
+
+handle_caller(#state{caller = {recv_file, RemoteFile, Fd}} = State) ->
+ _ = send_ctrl_message(State, mk_cmd("RETR ~s", [RemoteFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {recv_file, Fd}}};
+
+handle_caller(#state{caller = {transfer_file, {Cmd, LocalFile, RemoteFile}},
+ ldir = LocalDir, client = From} = State) ->
+ case file_open(filename:absname(LocalFile, LocalDir), read) of
+ {ok, Fd} ->
+ _ = send_ctrl_message(State, mk_cmd("~s ~s", [Cmd, RemoteFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {transfer_file, Fd}}};
+ {error, _} ->
+ gen_server:reply(From, {error, epath}),
+ {noreply, State#state{client = undefined, caller = undefined,
+ dsock = undefined}}
+ end;
+
+handle_caller(#state{caller = {transfer_data, {Cmd, Bin, RemoteFile}}} =
+ State) ->
+ _ = send_ctrl_message(State, mk_cmd("~s ~s", [Cmd, RemoteFile])),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {transfer_data, Bin}}}.
+
+%% ----------- FTP SERVER COMMUNICATION -------------------------
+
+%% Connect to FTP server at Host (default is TCP port 21)
+%% in order to establish a control connection.
+setup_ctrl_connection(Host, Port, Timeout, State) ->
+ MsTime = erlang:monotonic_time(),
+ case connect(Host, Port, Timeout, State) of
+ {ok, IpFam, CSock} ->
+ NewState = State#state{csock = {tcp, CSock}, ipfamily = IpFam},
+ activate_ctrl_connection(NewState),
+ case Timeout - millisec_passed(MsTime) of
+ Timeout2 when (Timeout2 >= 0) ->
+ {ok, NewState#state{caller = open}, Timeout2};
+ _ ->
+ %% Oups: Simulate timeout
+ {ok, NewState#state{caller = open}, 0}
+ end;
+ Error ->
+ Error
+ end.
+
+setup_data_connection(#state{mode = active,
+ caller = Caller,
+ csock = CSock,
+ ftp_extension = FtpExt} = State) ->
+ case (catch sockname(CSock)) of
+ {ok, {{_, _, _, _, _, _, _, _} = IP, _}} ->
+ {ok, LSock} =
+ gen_tcp:listen(0, [{ip, IP}, {active, false},
+ inet6, binary, {packet, 0}]),
+ {ok, {_, Port}} = sockname({tcp,LSock}),
+ IpAddress = inet_parse:ntoa(IP),
+ Cmd = mk_cmd("EPRT |2|~s|~p|", [IpAddress, Port]),
+ _ = send_ctrl_message(State, Cmd),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = {setup_data_connection,
+ {LSock, Caller}}}};
+ {ok, {{_,_,_,_} = IP, _}} ->
+ {ok, LSock} = gen_tcp:listen(0, [{ip, IP}, {active, false},
+ binary, {packet, 0}]),
+ {ok, Port} = inet:port(LSock),
+ _ = 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}}}}
+ end;
+
+setup_data_connection(#state{mode = passive, ipfamily = inet6,
+ 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, ipfamily = inet,
+ 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}) ->
+ connect2(Host, Port, IpFam, Timeout);
+
+connect(Host, Port, Timeout, #state{ipfamily = inet6 = IpFam}) ->
+ connect2(Host, Port, IpFam, Timeout);
+
+connect(Host, Port, Timeout, #state{ipfamily = inet6fb4}) ->
+ case inet:getaddr(Host, inet6) of
+ {ok, {0, 0, 0, 0, 0, 16#ffff, _, _} = IPv6} ->
+ case inet:getaddr(Host, inet) of
+ {ok, IPv4} ->
+ IpFam = inet,
+ connect2(IPv4, Port, IpFam, Timeout);
+
+ _ ->
+ IpFam = inet6,
+ connect2(IPv6, Port, IpFam, Timeout)
+ end;
+
+ {ok, IPv6} ->
+ IpFam = inet6,
+ connect2(IPv6, Port, IpFam, Timeout);
+
+ _ ->
+ case inet:getaddr(Host, inet) of
+ {ok, IPv4} ->
+ IpFam = inet,
+ connect2(IPv4, Port, IpFam, Timeout);
+ Error ->
+ Error
+ end
+ end.
+
+connect2(Host, Port, IpFam, Timeout) ->
+ Opts = [IpFam, binary, {packet, 0}, {active, false}],
+ case gen_tcp:connect(Host, Port, Opts, Timeout) of
+ {ok, Sock} ->
+ {ok, IpFam, Sock};
+ Error ->
+ Error
+ end.
+
+
+accept_data_connection(#state{mode = active,
+ dtimeout = DTimeout,
+ tls_options = TLSOptions,
+ dsock = {lsock, LSock}} = State0) ->
+ case gen_tcp:accept(LSock, DTimeout) of
+ {ok, Socket} when is_list(TLSOptions) ->
+ gen_tcp:close(LSock),
+ ?DBG('<--data ssl:connect(~p, ~p)~n~p~n',[Socket,TLSOptions,State0]),
+ case ssl:connect(Socket, TLSOptions, DTimeout) of
+ {ok, TLSSocket} ->
+ {ok, State0#state{dsock={ssl,TLSSocket}}};
+ {error, Reason} ->
+ {error, {ssl_connect_failed, Reason}}
+ end;
+ {ok, Socket} ->
+ gen_tcp:close(LSock),
+ {ok, State0#state{dsock={tcp,Socket}}};
+ {error, Reason} ->
+ {error, {data_connect_failed, Reason}}
+ end;
+
+accept_data_connection(#state{mode = passive,
+ dtimeout = DTimeout,
+ dsock = {tcp,Socket},
+ tls_options = TLSOptions} = State) when is_list(TLSOptions) ->
+ ?DBG('<--data ssl:connect(~p, ~p)~n~p~n',[Socket,TLSOptions,State]),
+ case ssl:connect(Socket, TLSOptions, DTimeout) of
+ {ok, TLSSocket} ->
+ {ok, State#state{dsock={ssl,TLSSocket}}};
+ {error, Reason} ->
+ {error, {ssl_connect_failed, Reason}}
+ end;
+accept_data_connection(#state{mode = passive} = State) ->
+ {ok,State}.
+
+
+send_ctrl_message(_S=#state{csock = Socket, verbose = Verbose}, Message) ->
+ verbose(lists:flatten(Message),Verbose,send),
+ ?DBG('<--ctrl ~p ---- ~s~p~n',[Socket,Message,_S]),
+ _ = send_message(Socket, Message).
+
+send_data_message(_S=#state{dsock = Socket}, Message) ->
+ ?DBG('<==data ~p ==== ~s~n~p~n',[Socket,Message,_S]),
+ case send_message(Socket, Message) of
+ ok ->
+ ok;
+ {error, Reason} ->
+ Report = io_lib:format("send/2 for socket ~p failed with "
+ "reason ~p~n", [Socket, Reason]),
+ error_logger:error_report(Report),
+ %% 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 = CSock, ctrl_data = {<<>>, _, _}}) ->
+ activate_connection(CSock);
+activate_ctrl_connection(#state{csock = CSock}) ->
+ activate_connection(CSock),
+ %% We have already received at least part of the next control message,
+ %% that has been saved in ctrl_data, process this first.
+ self() ! {socket_type(CSock), unwrap_socket(CSock), <<>>},
+ ok.
+
+activate_data_connection(#state{dsock = DSock} = State) ->
+ activate_connection(DSock),
+ State.
+
+activate_connection(Socket) ->
+ ignore_return_value(
+ case socket_type(Socket) of
+ tcp -> inet:setopts(unwrap_socket(Socket), [{active, once}]);
+ ssl -> ssl:setopts(unwrap_socket(Socket), [{active, once}])
+ end).
+
+
+ignore_return_value(_) -> ok.
+
+unwrap_socket({tcp,Socket}) -> Socket;
+unwrap_socket({ssl,Socket}) -> Socket.
+
+socket_type({tcp,_Socket}) -> tcp;
+socket_type({ssl,_Socket}) -> ssl.
+
+close_ctrl_connection(#state{csock = undefined}) -> ok;
+close_ctrl_connection(#state{csock = Socket}) -> close_connection(Socket).
+
+close_data_connection(#state{dsock = undefined}) -> ok;
+close_data_connection(#state{dsock = Socket}) -> close_connection(Socket).
+
+close_connection({lsock,Socket}) -> ignore_return_value( gen_tcp:close(Socket) );
+close_connection({tcp, Socket}) -> ignore_return_value( gen_tcp:close(Socket) );
+close_connection({ssl, Socket}) -> ignore_return_value( ssl:close(Socket) ).
+
+%% ------------ FILE HANDLING ----------------------------------------
+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(State, Fd);
+ {ok, _, _} ->
+ file_close(Fd),
+ close_data_connection(State),
+ progress_report({transfer_size, 0}, State),
+ activate_ctrl_connection(State),
+ {noreply, State#state{caller = transfer_file_second_phase,
+ dsock = undefined}};
+ {error, Reason} ->
+ gen_server:reply(State#state.client, {error, Reason}),
+ {stop, normal, State#state{client = undefined}}
+ end.
+
+file_open(File, Option) ->
+ file:open(File, [raw, binary, Option]).
+
+file_close(Fd) ->
+ ignore_return_value( file:close(Fd) ).
+
+file_read(Fd) ->
+ case file:read(Fd, ?FILE_BUFSIZE) of
+ {ok, Bytes} ->
+ {ok, size(Bytes), Bytes};
+ eof ->
+ {ok, 0, []};
+ Other ->
+ Other
+ end.
+
+file_write(Bytes, Fd) ->
+ file:write(Fd, Bytes).
+
+%% -------------- MISC ----------------------------------------------
+
+call(GenServer, Msg, Format) ->
+ call(GenServer, Msg, Format, infinity).
+call(GenServer, Msg, Format, Timeout) ->
+ Req = {self(), Msg},
+ case (catch gen_server:call(GenServer, Req, Timeout)) of
+ {ok, Bin} when is_binary(Bin) andalso (Format =:= string) ->
+ {ok, binary_to_list(Bin)};
+ {'EXIT', _} ->
+ {error, eclosed};
+ Result ->
+ Result
+ end.
+
+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.
+
+is_name_sane([]) ->
+ true;
+is_name_sane([?CR| _]) ->
+ false;
+is_name_sane([?LF| _]) ->
+ false;
+is_name_sane([_| Rest]) ->
+ is_name_sane(Rest).
+
+pwd_result(Lines) ->
+ {_, [?DOUBLE_QUOTE | Rest]} =
+ lists:splitwith(fun(?DOUBLE_QUOTE) -> false; (_) -> true end, Lines),
+ {Dir, _} =
+ lists:splitwith(fun(?DOUBLE_QUOTE) -> false; (_) -> true end, Rest),
+ Dir.
+
+
+key_search(Key, List, Default) ->
+ case lists:keysearch(Key, 1, List) of
+ {value, {_,Val}} ->
+ Val;
+ false ->
+ Default
+ end.
+
+verbose(Lines, true, Direction) ->
+ DirStr =
+ case Direction of
+ send ->
+ "Sending: ";
+ _ ->
+ "Receiving: "
+ end,
+ Str = string:strip(string:strip(Lines, right, ?LF), right, ?CR),
+ erlang:display(DirStr++Str);
+verbose(_, false,_) ->
+ ok.
+
+progress(Options) ->
+ ftp_progress:start_link(Options).
+
+progress_report(_, #state{progress = ignore}) ->
+ ok;
+progress_report(stop, #state{progress = ProgressPid}) ->
+ ftp_progress:stop(ProgressPid);
+progress_report({binary, Data}, #state{progress = ProgressPid}) ->
+ ftp_progress:report(ProgressPid, {transfer_size, size(Data)});
+progress_report(Report, #state{progress = ProgressPid}) ->
+ ftp_progress:report(ProgressPid, Report).
+
+
+peername({tcp, Socket}) -> inet:peername(Socket);
+peername({ssl, Socket}) -> ssl:peername(Socket).
+
+sockname({tcp, Socket}) -> inet:sockname(Socket);
+sockname({ssl, Socket}) -> ssl:sockname(Socket).
+
+maybe_tls_upgrade(Pid, undefined) ->
+ {ok, Pid};
+maybe_tls_upgrade(Pid, TLSOptions) ->
+ catch ssl:start(),
+ call(Pid, {open, tls_upgrade, TLSOptions}, plain).
+
+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}.
+
+
+%% This function extracts the start options from the
+%% Valid options:
+%% debug,
+%% verbose
+%% ipfamily
+%% priority
+%% flags (for backward compatibillity)
+start_options(Options) ->
+ case lists:keysearch(flags, 1, Options) of
+ {value, {flags, Flags}} ->
+ Verbose = lists:member(verbose, Flags),
+ IsTrace = lists:member(trace, Flags),
+ IsDebug = lists:member(debug, Flags),
+ DebugLevel =
+ if
+ (IsTrace =:= true) ->
+ trace;
+ IsDebug =:= true ->
+ debug;
+ true ->
+ disable
+ end,
+ {ok, [{verbose, Verbose},
+ {debug, DebugLevel},
+ {priority, low}]};
+ false ->
+ ValidateVerbose =
+ fun(true) -> true;
+ (false) -> true;
+ (_) -> false
+ end,
+ ValidateDebug =
+ fun(trace) -> true;
+ (debug) -> true;
+ (disable) -> true;
+ (_) -> false
+ end,
+ ValidatePriority =
+ fun(low) -> true;
+ (normal) -> true;
+ (high) -> true;
+ (_) -> false
+ end,
+ ValidOptions =
+ [{verbose, ValidateVerbose, false, false},
+ {debug, ValidateDebug, false, disable},
+ {priority, ValidatePriority, false, low}],
+ validate_options(Options, ValidOptions, [])
+ end.
+
+
+%% This function extracts and validates the open options from the
+%% Valid options:
+%% mode
+%% host
+%% port
+%% timeout
+%% dtimeout
+%% progress
+%% ftp_extension
+
+open_options(Options) ->
+ ValidateMode =
+ fun(active) -> true;
+ (passive) -> true;
+ (_) -> false
+ end,
+ ValidateHost =
+ fun(Host) when is_list(Host) ->
+ true;
+ (Host) when is_tuple(Host) andalso
+ ((size(Host) =:= 4) orelse (size(Host) =:= 8)) ->
+ true;
+ (_) ->
+ false
+ end,
+ ValidatePort =
+ fun(Port) when is_integer(Port) andalso (Port > 0) -> true;
+ (_) -> false
+ end,
+ ValidateIpFamily =
+ fun(inet) -> true;
+ (inet6) -> true;
+ (inet6fb4) -> true;
+ (_) -> false
+ end,
+ ValidateTimeout =
+ fun(Timeout) when is_integer(Timeout) andalso (Timeout >= 0) -> true;
+ (_) -> false
+ end,
+ ValidateDTimeout =
+ fun(DTimeout) when is_integer(DTimeout) andalso (DTimeout >= 0) -> true;
+ (infinity) -> true;
+ (_) -> false
+ end,
+ ValidateProgress =
+ fun(ignore) ->
+ true;
+ ({Mod, Func, _InitProgress}) when is_atom(Mod) andalso
+ is_atom(Func) ->
+ true;
+ (_) ->
+ false
+ end,
+ ValidateFtpExtension =
+ fun(true) -> true;
+ (false) -> true;
+ (_) -> false
+ end,
+ ValidOptions =
+ [{mode, ValidateMode, false, ?DEFAULT_MODE},
+ {host, ValidateHost, true, ehost},
+ {port, ValidatePort, false, ?FTP_PORT},
+ {ipfamily, ValidateIpFamily, false, inet},
+ {timeout, ValidateTimeout, false, ?CONNECTION_TIMEOUT},
+ {dtimeout, ValidateDTimeout, false, ?DATA_ACCEPT_TIMEOUT},
+ {progress, ValidateProgress, false, ?PROGRESS_DEFAULT},
+ {ftp_extension, ValidateFtpExtension, false, ?FTP_EXT_DEFAULT}],
+ validate_options(Options, ValidOptions, []).
+
+tls_options(Options) ->
+ %% Options will be validated by ssl application
+ proplists:get_value(tls, Options, undefined).
+
+validate_options([], [], Acc) ->
+ {ok, lists:reverse(Acc)};
+validate_options([], ValidOptions, Acc) ->
+ %% Check if any mandatory options are missing!
+ case [{Key, Reason} || {Key, _, true, Reason} <- ValidOptions] of
+ [] ->
+ Defaults =
+ [{Key, Default} || {Key, _, _, Default} <- ValidOptions],
+ {ok, lists:reverse(Defaults ++ Acc)};
+ [{_, Reason}|_Missing] ->
+ throw({error, Reason})
+ end;
+validate_options([{Key, Value}|Options], ValidOptions, Acc) ->
+ case lists:keysearch(Key, 1, ValidOptions) of
+ {value, {Key, Validate, _, Default}} ->
+ case (catch Validate(Value)) of
+ true ->
+ NewValidOptions = lists:keydelete(Key, 1, ValidOptions),
+ validate_options(Options, NewValidOptions,
+ [{Key, Value} | Acc]);
+ _ ->
+ NewValidOptions = lists:keydelete(Key, 1, ValidOptions),
+ validate_options(Options, NewValidOptions,
+ [{Key, Default} | Acc])
+ end;
+ false ->
+ validate_options(Options, ValidOptions, Acc)
+ end;
+validate_options([_|Options], ValidOptions, Acc) ->
+ validate_options(Options, ValidOptions, Acc).
+
+%% Help function, elapsed milliseconds since T0
+millisec_passed(T0) ->
+ %% OTP 18
+ erlang:convert_time_unit(erlang:monotonic_time() - T0,
+ native,
+ micro_seconds) div 1000.
diff --git a/lib/ftp/src/ftp_app.erl b/lib/ftp/src/ftp_app.erl
new file mode 100644
index 0000000000..d647d9fce3
--- /dev/null
+++ b/lib/ftp/src/ftp_app.erl
@@ -0,0 +1,47 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2002-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+%%%-------------------------------------------------------------------
+%% @doc ftp public API
+%% @end
+%%%-------------------------------------------------------------------
+
+-module(ftp_app).
+
+-behaviour(application).
+
+%% Application callbacks
+-export([start/2, stop/1]).
+
+%%====================================================================
+%% API
+%%====================================================================
+
+start(_StartType, _StartArgs) ->
+ ftp_sup:start_link().
+
+%%--------------------------------------------------------------------
+stop(_State) ->
+ ok.
+
+%%====================================================================
+%% Internal functions
+%%====================================================================
diff --git a/lib/ftp/src/ftp_internal.hrl b/lib/ftp/src/ftp_internal.hrl
new file mode 100644
index 0000000000..84f980e8fd
--- /dev/null
+++ b/lib/ftp/src/ftp_internal.hrl
@@ -0,0 +1,35 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2005-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-ifndef(ftp_internal_hrl).
+-define(ftp_internal_hrl, true).
+
+-define(CR, $\r).
+-define(LF, $\n).
+-define(CRLF, [$\r,$\n]).
+-define(SP, $\s).
+-define(TAB, $\t).
+-define(LEFT_PAREN, $().
+-define(RIGHT_PAREN, $)).
+-define(WHITE_SPACE, $ ).
+-define(DOUBLE_QUOTE, $").
+
+-endif. % -ifdef(ftp_internal_hrl).
diff --git a/lib/ftp/src/ftp_progress.erl b/lib/ftp/src/ftp_progress.erl
new file mode 100644
index 0000000000..a6263e5cd7
--- /dev/null
+++ b/lib/ftp/src/ftp_progress.erl
@@ -0,0 +1,136 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2005-2016. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+%% Description: This module impements a temporary process that
+%% performes progress reporting during file transfer calling a user
+%% defined callback function. Its life span is as long as the ftp connection
+%% processes that spawned it lives. The purpose of this process is to
+%% shild the ftp connection process from errors and time consuming operations
+%% in the user defined callback function.
+
+-module(ftp_progress).
+
+%% Internal API
+-export([start_link/1, report/2, stop/1]).
+
+%% Spawn export
+-export([init/1]).
+
+-include_lib("kernel/include/file.hrl").
+
+-record(progress, {
+ file :: string() | 'undefined',
+ cb_module :: module(),
+ cb_function :: atom(),
+ init_progress_term :: term(),
+ current_progress_term :: term()
+ }).
+
+%%%=========================================================================
+%%% Internal application API
+%%%=========================================================================
+%%--------------------------------------------------------------------------
+%% start_link(Options) -> ignore | pid()
+%% Options = ignore | {CBModule, CBFunction, InitProgressTerm}
+%%
+%% Description: Starts the progress report process unless progress reporting
+%% should not be performed.
+%%--------------------------------------------------------------------------
+-type options() :: 'ignore' | {module(), atom(), term()}.
+-spec start_link(options()) -> 'ignore' | pid().
+start_link(ignore) ->
+ ignore;
+start_link(Options) ->
+ spawn_link(?MODULE, init, [Options]).
+
+%%--------------------------------------------------------------------------
+%% report_progress(Pid, Report) -> ok
+%% Pid = pid()
+%% Report = {local_file, File} | {remote_file, File} |
+%% {transfer_size, Size}
+%% Size = integer()
+%%
+%% Description: Reports progress to the reporting process that calls the
+%% user defined callback function.
+%%--------------------------------------------------------------------------
+-type report() :: {'local_file', string()} | {'remote_file', string()}
+ | {'transfer_size', non_neg_integer()}.
+-spec report(pid(), report()) -> 'ok'.
+report(Pid, Report) ->
+ Pid ! {progress_report, Report},
+ ok.
+
+%%--------------------------------------------------------------------------
+%% stop(Pid) -> ok
+%% Pid = pid()
+%%
+%% Description:
+%%--------------------------------------------------------------------------
+-spec stop(pid()) -> 'ok'.
+stop(Pid) ->
+ Pid ! stop,
+ ok.
+
+%%%=========================================================================
+%%% Internal functions
+%%%=========================================================================
+init(Options) ->
+ loop(progress(Options)).
+
+loop(Progress) ->
+ receive
+ {progress_report, Report} ->
+ NewProgress = report_progress(Report, Progress),
+ loop(NewProgress);
+ stop ->
+ ok
+ end.
+
+progress({CBModule, CBFunction, InitProgressTerm}) when is_atom(CBModule),
+ is_atom(CBFunction) ->
+ #progress{cb_module = CBModule,
+ cb_function = CBFunction,
+ init_progress_term = InitProgressTerm,
+ current_progress_term = InitProgressTerm}.
+
+report_progress({local_file, File}, Progress) ->
+ {ok, FileInfo} = file:read_file_info(File),
+ report_progress({file_size, FileInfo#file_info.size},
+ Progress#progress{file = File});
+
+report_progress({remote_file, File}, Progress) ->
+ report_progress({file_size, unknown}, Progress#progress{file = File});
+
+report_progress(Size, #progress{file = File,
+ cb_module = CBModule,
+ cb_function = CBFunction,
+ current_progress_term = Term,
+ init_progress_term = InitTerm} = Progress) ->
+
+ NewProgressTerm = CBModule:CBFunction(Term, File, Size),
+
+ case Size of
+ {transfer_size, 0} ->
+ %% Transfer is compleat reset initial values
+ Progress#progress{current_progress_term = InitTerm,
+ file = undefined};
+ _ ->
+ Progress#progress{current_progress_term = NewProgressTerm}
+ end.
diff --git a/lib/ftp/src/ftp_response.erl b/lib/ftp/src/ftp_response.erl
new file mode 100644
index 0000000000..d54d97dc91
--- /dev/null
+++ b/lib/ftp/src/ftp_response.erl
@@ -0,0 +1,203 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2005-2016. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+%% Description: This module impements handling of ftp server responses.
+
+-module(ftp_response).
+
+%% Internal API
+-export([parse_lines/3, interpret/1, error_string/1]).
+
+-include("ftp_internal.hrl").
+
+%% First group of reply code digits
+-define(POS_PREL, 1).
+-define(POS_COMPL, 2).
+-define(POS_INTERM, 3).
+-define(TRANS_NEG_COMPL, 4).
+-define(PERM_NEG_COMPL, 5).
+%% Second group of reply code digits
+-define(SYNTAX,0).
+-define(INFORMATION,1).
+-define(CONNECTION,2).
+-define(AUTH_ACC,3).
+-define(UNSPEC,4).
+-define(FILE_SYSTEM,5).
+
+%%%=========================================================================
+%%% INTERNAL API
+%%%=========================================================================
+
+%%--------------------------------------------------------------------------
+%% parse_lines(Data, AccLines, StatusCode) -> {ok, Lines} |
+%% {continue, {Data,
+%% AccLines, StatusCode}}
+%%
+%% Data = binary() - data recived on the control connection from the
+%% ftp-server.
+%% AccLines = [string()]
+%% StatusCode = start | {byte(), byte(), byte()} | finish -
+%% Indicates where in the parsing process we are.
+%% start - (looking for the status code of the message)
+%% {byte(), byte(), byte()} - status code found, now
+%% looking for the last line indication.
+%% finish - now on the last line.
+%% Description: Parses a ftp control response message.
+%% "A reply is defined to contain the 3-digit code, followed by Space
+%% <SP>, followed by one line of text (where some maximum line length
+%% has been specified), and terminated by the Telnet end-of-line
+%% code (CRLF), or a so called multilined reply for example:
+%%
+%% 123-First line
+%% Second line
+%% 234 A line beginning with numbers
+%% 123 The last line
+%%
+%% The user-process then simply needs to search for the second
+%% occurrence of the same reply code, followed by <SP> (Space), at
+%% the beginning of a line, and ignore all intermediary lines. If
+%% an intermediary line begins with a 3-digit number, the Server
+%% will pad the front to avoid confusion.
+%%--------------------------------------------------------------------------
+
+%% Make sure we received the first 4 bytes so we know how to parse
+%% the FTP server response e.i. is the response composed of one
+%% or multiple lines.
+parse_lines(Bin, Lines, start) when size(Bin) < 4 ->
+ {continue, {Bin, Lines, start}};
+%% Multiple lines exist
+parse_lines(<<C1, C2, C3, $-, Rest/binary>>, Lines, start) ->
+ parse_lines(Rest, [$-, C3, C2, C1 | Lines], {C1, C2, C3});
+%% Only one line exists
+parse_lines(<<C1, C2, C3, ?WHITE_SPACE, Bin/binary>>, Lines, start) ->
+ parse_lines(Bin, [?WHITE_SPACE, C3, C2, C1 | Lines], finish);
+
+%% Last line found
+parse_lines(<<?CR, ?LF, C1, C2, C3, ?WHITE_SPACE, Rest/binary>>, Lines, {C1, C2, C3}) ->
+ parse_lines(Rest, [?WHITE_SPACE, C3, C2, C1, ?LF, ?CR | Lines], finish);
+%% Potential end found wait for more data
+parse_lines(<<?CR, ?LF, C1, C2, C3>> = Bin, Lines, {C1, C2, C3}) ->
+ {continue, {Bin, Lines, {C1, C2, C3}}};
+%% Intermidate line begining with status code
+parse_lines(<<?CR, ?LF, C1, C2, C3, Rest/binary>>, Lines, {C1, C2, C3}) ->
+ parse_lines(Rest, [C3, C2, C1, ?LF, ?CR | Lines], {C1, C2, C3});
+
+%% Potential last line wait for more data
+parse_lines(<<?CR, ?LF, C1, C2>> = Data, Lines, {C1, C2, _} = StatusCode) ->
+ {continue, {Data, Lines, StatusCode}};
+parse_lines(<<?CR, ?LF, C1>> = Data, Lines, {C1, _, _} = StatusCode) ->
+ {continue, {Data, Lines, StatusCode}};
+parse_lines(<<?CR, ?LF>> = Data, Lines, {_,_,_} = StatusCode) ->
+ {continue, {Data, Lines, StatusCode}};
+parse_lines(<<?LF>> = Data, Lines, {_,_,_} = StatusCode) ->
+ {continue, {Data, Lines, StatusCode}};
+parse_lines(<<>> = Data, Lines, {_,_,_} = StatusCode) ->
+ {continue, {Data, Lines, StatusCode}};
+%% Part of the multiple lines
+parse_lines(<<Octet, Rest/binary>>, Lines, {_,_, _} = StatusCode) ->
+ parse_lines(Rest, [Octet | Lines], StatusCode);
+
+%% End of FTP server response found
+parse_lines(<<?CR, ?LF>>, Lines, finish) ->
+ {ok, lists:reverse([?LF, ?CR | Lines]), <<>>};
+parse_lines(<<?CR, ?LF, Rest/binary>>, Lines, finish) ->
+ {ok, lists:reverse([?LF, ?CR | Lines]), Rest};
+
+%% Potential end found wait for more data
+parse_lines(<<?CR>> = Data, Lines, finish) ->
+ {continue, {Data, Lines, finish}};
+parse_lines(<<>> = Data, Lines, finish) ->
+ {continue, {Data, Lines, finish}};
+%% Part of last line
+parse_lines(<<Octet, Rest/binary>>, Lines, finish) ->
+ parse_lines(Rest, [Octet | Lines], finish).
+
+%%--------------------------------------------------------------------------
+%% interpret(Lines) -> {Status, Text}
+%% Lines = [byte(), byte(), byte() | Text] - ftp server response as
+%% returned by parse_lines/3
+%% Stauts = atom() (see interpret_status/3)
+%% Text = [string()]
+%%
+%% Description: Create nicer data to match on.
+%%--------------------------------------------------------------------------
+interpret([Didgit1, Didgit2, Didgit3 | Data]) ->
+ Code1 = Didgit1 - $0,
+ Code2 = Didgit2 - $0,
+ Code3 = Didgit3 - $0,
+ {interpret_status(Code1, Code2, Code3), Data}.
+
+%%--------------------------------------------------------------------------
+%% error_string(Error) -> string()
+%% Error = {error, term()} | term()
+%%
+%% Description: Translates error codes into strings intended for
+%% human interpretation.
+%%--------------------------------------------------------------------------
+error_string({error, Reason}) ->
+ error_string(Reason);
+
+error_string(echunk) -> "Synchronisation error during chunk sending.";
+error_string(eclosed) -> "Session has been closed.";
+error_string(econn) -> "Connection to remote server prematurely closed.";
+error_string(eexists) ->"File or directory already exists.";
+error_string(ehost) -> "Host not found, FTP server not found, "
+ "or connection rejected.";
+error_string(elogin) -> "User not logged in.";
+error_string(enotbinary) -> "Term is not a binary.";
+error_string(epath) -> "No such file or directory, already exists, "
+ "or permission denied.";
+error_string(etype) -> "No such type.";
+error_string(euser) -> "User name or password not valid.";
+error_string(etnospc) -> "Insufficient storage space in system.";
+error_string(enofile) -> "No files found or file unavailable";
+error_string(epnospc) -> "Exceeded storage allocation "
+ "(for current directory or dataset).";
+error_string(efnamena) -> "File name not allowed.";
+error_string(Reason) ->
+ lists:flatten(io_lib:format("Unknown error: ~w", [Reason])).
+
+%%%========================================================================
+%%% Internal functions
+%%%========================================================================
+
+%% Positive Preleminary Reply
+interpret_status(?POS_PREL,_,_) -> pos_prel;
+%%FIXME ??? 3??? interpret_status(?POS_COMPL, ?AUTH_ACC, 3) -> tls_upgrade;
+interpret_status(?POS_COMPL, ?AUTH_ACC, 4) -> tls_upgrade;
+%% Positive Completion Reply
+interpret_status(?POS_COMPL,_,_) -> pos_compl;
+%% Positive Intermediate Reply nedd account
+interpret_status(?POS_INTERM,?AUTH_ACC,2) -> pos_interm_acct;
+%% Positive Intermediate Reply
+interpret_status(?POS_INTERM,_,_) -> pos_interm;
+%% No files found or file not available
+interpret_status(?TRANS_NEG_COMPL,?FILE_SYSTEM,0) -> enofile;
+%% No storage area no action taken
+interpret_status(?TRANS_NEG_COMPL,?FILE_SYSTEM,2) -> etnospc;
+%% Temporary Error, no action taken
+interpret_status(?TRANS_NEG_COMPL,_,_) -> trans_neg_compl;
+%% Permanent disk space error, the user shall not try again
+interpret_status(?PERM_NEG_COMPL,?FILE_SYSTEM,0) -> epath;
+interpret_status(?PERM_NEG_COMPL,?FILE_SYSTEM,2) -> epnospc;
+interpret_status(?PERM_NEG_COMPL,?FILE_SYSTEM,3) -> efnamena;
+interpret_status(?PERM_NEG_COMPL,?AUTH_ACC,0) -> elogin;
+interpret_status(?PERM_NEG_COMPL,_,_) -> perm_neg_compl.
+
diff --git a/lib/ftp/src/ftp_sup.erl b/lib/ftp/src/ftp_sup.erl
new file mode 100644
index 0000000000..f30046802f
--- /dev/null
+++ b/lib/ftp/src/ftp_sup.erl
@@ -0,0 +1,68 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2002-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+%%%-------------------------------------------------------------------
+%% @doc ftp top level supervisor.
+%% @end
+%%%-------------------------------------------------------------------
+
+-module(ftp_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_child/1, start_link/0]).
+
+%% Supervisor callbacks
+-export([init/1]).
+
+-define(SERVER, ?MODULE).
+
+%%====================================================================
+%% API functions
+%%====================================================================
+
+start_link() ->
+ supervisor:start_link({local, ?SERVER}, ?MODULE, []).
+
+start_child(Args) ->
+ supervisor:start_child(?MODULE, Args).
+
+%%====================================================================
+%% Supervisor callbacks
+%%====================================================================
+init(_) ->
+ SupFlags = #{strategy => simple_one_for_one,
+ intensity => 0,
+ period => 3600},
+ {ok, {SupFlags, child_specs()}}.
+
+
+%%====================================================================
+%% Internal functions
+%%====================================================================
+child_specs() ->
+ [#{id => undefined,
+ start => {ftp, start_link, []},
+ restart => temporary,
+ shutdown => 4000,
+ type => worker,
+ modules => [ftp]}].
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 16:03:33 +0000