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authorHans Nilsson <[email protected]>2014-12-01 10:50:19 +0100
committerHans Nilsson <[email protected]>2014-12-01 11:03:29 +0100
commit3005b2aadb5f756503cf6d05d604d8c64eb2c786 (patch)
tree47b2f96e7169270fa40eaa46c618bcb0dadb7ce0 /lib/ssh/test
parent6c87be5952439f66513e3bf72fb0e48ee93c24d3 (diff)
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ssh: crypto framework for ssh_sftp:open_tar added
Diffstat (limited to 'lib/ssh/test')
-rw-r--r--lib/ssh/test/ssh_sftp_SUITE.erl381
1 files changed, 320 insertions, 61 deletions
diff --git a/lib/ssh/test/ssh_sftp_SUITE.erl b/lib/ssh/test/ssh_sftp_SUITE.erl
index 559fa721fd..cb74a27638 100644
--- a/lib/ssh/test/ssh_sftp_SUITE.erl
+++ b/lib/ssh/test/ssh_sftp_SUITE.erl
@@ -65,19 +65,25 @@ end_per_suite(Config) ->
%%--------------------------------------------------------------------
groups() ->
[{erlang_server, [], [open_close_file, open_close_dir, read_file, read_dir,
- write_file, write_big_file, rename_file, mk_rm_dir, remove_file, links,
+ write_file, write_big_file, sftp_read_big_file,
+ rename_file, mk_rm_dir, remove_file, links,
retrieve_attributes, set_attributes, async_read,
async_write, position, pos_read, pos_write, version_option,
- {group,remote_tar_write}
- ]},
+ {group,remote_tar}]},
+
{openssh_server, [], [open_close_file, open_close_dir, read_file, read_dir,
- write_file, write_big_file, rename_file, mk_rm_dir, remove_file, links,
+ write_file, write_big_file, sftp_read_big_file,
+ rename_file, mk_rm_dir, remove_file, links,
retrieve_attributes, set_attributes, async_read,
async_write, position, pos_read, pos_write,
- {group,remote_tar_write}]},
-
- {remote_tar_write, [], [create_empty_tar, files_to_tar, big_file_to_tar, files_chunked_to_tar,
- directory_to_tar, binaries_to_tar]}
+ {group,remote_tar}]},
+
+ {remote_tar, [], [create_empty_tar, files_to_tar, big_file_to_tar, files_chunked_to_tar,
+ directory_to_tar, binaries_to_tar, null_crypto_tar,
+ simple_crypto_tar_small, simple_crypto_tar_big,
+ read_tar, read_null_crypto_tar, read_crypto_tar,
+ aes_cbc256_crypto_tar, aes_ctr_stream_crypto_tar
+ ]}
].
@@ -104,7 +110,7 @@ init_per_group(openssh_server, Config) ->
{skip, "No openssh server"}
end;
-init_per_group(remote_tar_write, Config) ->
+init_per_group(remote_tar, Config) ->
{Host,Port} = ?config(peer, Config),
ct:log("Server (~p) at ~p:~p",[?config(group,Config),Host,Port]),
{ok, Connection} =
@@ -120,7 +126,7 @@ init_per_group(remote_tar_write, Config) ->
[{user_interaction, false},
{silently_accept_hosts, true}])
end,
- [{remote_tar_write, true},
+ [{remote_tar, true},
{connection, Connection} | Config].
end_per_group(erlang_server, Config) ->
@@ -187,16 +193,12 @@ init_per_testcase(Case, Config0) ->
[{sftp, Sftp}, {watchdog, Dog} | Config2]
end,
- case catch ?config(remote_tar_write,Config) of
+ case catch ?config(remote_tar,Config) of
%% The 'catch' is for the case of Config={skip,...}
true ->
- %% Provide a tar Handle *independent* of the sftp-channel already opened!
- %% This Handle will be closed (as well as ChannelPid2) in the testcase
- {ok,ChannelPid2} =
- ssh_sftp:start_channel(?config(connection,Config)),
- {ok,Handle} =
- ssh_sftp:open_tar(ChannelPid2, fnp(?tar_file_name,Config), [write]),
- [{handle,Handle} | Config];
+ %% Provide a ChannelPid independent of the sftp-channel already opened.
+ {ok,ChPid2} = ssh_sftp:start_channel(?config(connection,Config)),
+ [{channel_pid2,ChPid2} | Config];
_ ->
Config
end.
@@ -214,6 +216,7 @@ end_per_testcase(_, Config) ->
end_per_testcase(Config) ->
{Sftp, Connection} = ?config(sftp, Config),
ssh_sftp:stop_channel(Sftp),
+ catch ssh_sftp:stop_channel(?config(channel_pid2, Config)),
ssh:close(Connection).
%%--------------------------------------------------------------------
@@ -258,6 +261,7 @@ read_file(Config) when is_list(Config) ->
FileName = filename:join(PrivDir, "sftp.txt"),
{Sftp, _} = ?config(sftp, Config),
{ok, Data} = ssh_sftp:read_file(Sftp, FileName),
+ {ok, Data} = ssh_sftp:read_file(Sftp, FileName),
{ok, Data} = file:read_file(FileName).
%%--------------------------------------------------------------------
@@ -294,6 +298,19 @@ write_big_file(Config) when is_list(Config) ->
{ok, Data} = file:read_file(FileName).
%%--------------------------------------------------------------------
+sftp_read_big_file() ->
+ [{doc, "Test API function read_file/2 with big data"}].
+sftp_read_big_file(Config) when is_list(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ FileName = filename:join(PrivDir, "sftp.txt"),
+ {Sftp, _} = ?config(sftp, Config),
+
+ Data = list_to_binary(lists:duplicate(750000,"a")),
+ ct:log("Data size to write is ~p bytes",[size(Data)]),
+ ssh_sftp:write_file(Sftp, FileName, [Data]),
+ {ok, Data} = ssh_sftp:read_file(Sftp, FileName).
+
+%%--------------------------------------------------------------------
remove_file() ->
[{doc,"Test API function delete/2"}].
remove_file(Config) when is_list(Config) ->
@@ -527,53 +544,247 @@ version_option(Config) when is_list(Config) ->
%%--------------------------------------------------------------------
create_empty_tar(Config) ->
- {ChPid,_} = ?config(sftp,Config),
- Handle = ?config(handle,Config),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
erl_tar:close(Handle),
+ {ChPid,_} = ?config(sftp,Config),
{ok, #file_info{type=regular}} =
ssh_sftp:read_file_info(ChPid,fnp(?tar_file_name,Config)).
-
+
%%--------------------------------------------------------------------
files_to_tar(Config) ->
- Handle = ?config(handle,Config),
- ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", []),
- ok = erl_tar:add(Handle, fn("f2.txt",Config), "f2.txt", []),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
+ ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [verbose]),
+ ok = erl_tar:add(Handle, fn("f2.txt",Config), "f2.txt", [verbose]),
ok = erl_tar:close(Handle),
chk_tar(["f1.txt", "f2.txt"], Config).
-
%%--------------------------------------------------------------------
big_file_to_tar(Config) ->
- Handle = ?config(handle,Config),
- ok = erl_tar:add(Handle, fn("big.txt",Config), "big.txt", []),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
+ ok = erl_tar:add(Handle, fn("big.txt",Config), "big.txt", [verbose]),
ok = erl_tar:close(Handle),
chk_tar(["big.txt"], Config).
%%--------------------------------------------------------------------
files_chunked_to_tar(Config) ->
- Handle = ?config(handle,Config),
- ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [{chunks,2}]),
- ok = erl_tar:add(Handle, fn("big.txt",Config), "big.txt", [{chunks,15000}]),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
+ ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [verbose,{chunks,2}]),
ok = erl_tar:close(Handle),
- chk_tar(["f1.txt", "big.txt"], Config).
+ chk_tar(["f1.txt"], Config).
%%--------------------------------------------------------------------
directory_to_tar(Config) ->
- Handle = ?config(handle,Config),
- ok = erl_tar:add(Handle, fn("d1",Config), "d1", []),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
+ ok = erl_tar:add(Handle, fn("d1",Config), "d1", [verbose]),
ok = erl_tar:close(Handle),
- chk_tar(["d1/f1", "d1/f2"], Config).
+ chk_tar(["d1"], Config).
%%--------------------------------------------------------------------
binaries_to_tar(Config) ->
- Handle = ?config(handle,Config),
+ ChPid2 = ?config(channel_pid2, Config),
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
Bin = <<"A binary">>,
- ok = erl_tar:add(Handle, Bin, "b1", []),
+ ok = erl_tar:add(Handle, Bin, "b1", [verbose]),
ok = erl_tar:close(Handle),
chk_tar([{"b1",Bin}], Config).
%%--------------------------------------------------------------------
+null_crypto_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ Cinit = fun() -> {ok, no_state, _SendSize=5} end,
+ Cenc = fun(Bin,CState) -> {ok,Bin,CState,_SendSize=5} end,
+ Cend = fun(Bin,_CState) -> {ok,Bin} end,
+ C = {Cinit,Cenc,Cend},
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,C}]),
+ Bin = <<"A binary">>,
+ ok = erl_tar:add(Handle, Bin, "b1", [verbose]),
+ ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [verbose,{chunks,2}]),
+ ok = erl_tar:add(Handle, fn("big.txt",Config), "big.txt", [verbose,{chunks,15000}]),
+ ok = erl_tar:close(Handle),
+ chk_tar([{"b1",Bin}, "f1.txt", "big.txt"], Config).
+
+%%--------------------------------------------------------------------
+simple_crypto_tar_small(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ Cinit = fun() -> {ok, no_state, _Size=6} end,
+ Cenc = fun(Bin,CState) -> {ok,stuff(Bin),CState,_SendSize=5} end,
+ Cdec = fun(Bin,CState) -> {ok,unstuff(Bin),CState,_Size=4} end,
+ Cend = fun(Bin,_CState) -> {ok,stuff(Bin)} end,
+ C = {Cinit,Cenc,Cend},
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,C}]),
+ Bin = <<"A binary">>,
+ ok = erl_tar:add(Handle, Bin, "b1", [verbose]),
+ ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [verbose,{chunks,2}]),
+ ok = erl_tar:close(Handle),
+ chk_tar([{"b1",Bin}, "f1.txt"], Config, [{crypto,{Cinit,Cdec}}]).
+
+%%--------------------------------------------------------------------
+simple_crypto_tar_big(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ Cinit = fun() -> {ok, no_state, _SendSize=6} end,
+ Cenc = fun(Bin,CState) -> {ok,stuff(Bin),CState,_SendSize=5} end,
+ Cdec = fun(Bin,CState) -> {ok,unstuff(Bin),CState,_SendSize=4} end,
+ Cend = fun(Bin,_CState) -> {ok,stuff(Bin)} end,
+ C = {Cinit,Cenc,Cend},
+ {ok,Handle} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,C}]),
+ Bin = <<"A binary">>,
+ ok = erl_tar:add(Handle, Bin, "b1", [verbose]),
+ ok = erl_tar:add(Handle, fn("f1.txt",Config), "f1.txt", [verbose,{chunks,2}]),
+ ok = erl_tar:add(Handle, fn("big.txt",Config), "big.txt", [verbose,{chunks,15000}]),
+ ok = erl_tar:close(Handle),
+ chk_tar([{"b1",Bin}, "f1.txt", "big.txt"], Config, [{crypto,{Cinit,Cdec}}]).
+
+stuff(Bin) -> << <<C,C>> || <<C>> <= Bin >>.
+
+unstuff(Bin) -> << <<C>> || <<C,C>> <= Bin >>.
+
+%%--------------------------------------------------------------------
+read_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ NameBins = lists:sort(
+ [{"b1",<<"A binary">>},
+ {"b2",list_to_binary(lists:duplicate(750000,"a"))}
+ ]),
+ {ok,HandleWrite} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write]),
+ [ok = erl_tar:add(HandleWrite, Bin, Name, [verbose])
+ || {Name,Bin} <- NameBins],
+ ok = erl_tar:close(HandleWrite),
+
+ chk_tar(NameBins, Config).
+
+%%--------------------------------------------------------------------
+read_null_crypto_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ NameBins = lists:sort(
+ [{"b1",<<"A binary">>},
+ {"b2",list_to_binary(lists:duplicate(750000,"a"))}
+ ]),
+ Cinitw = fun() -> {ok, no_state, _SendSize=5} end,
+ Cinitr = fun() -> {ok, no_state, _FetchSize=42} end,
+ Cenc = fun(Bin,CState) -> {ok,Bin,CState,_SendSize=42*42} end,
+ Cdec = fun(Bin,CState) -> {ok,Bin,CState,_FetchSize=19} end,
+ Cendw = fun(Bin,_CState) -> {ok,Bin} end,
+ Cw = {Cinitw,Cenc,Cendw},
+ Cr = {Cinitr,Cdec},
+
+ {ok,HandleWrite} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,Cw}]),
+ [ok = erl_tar:add(HandleWrite, Bin, Name, [verbose])
+ || {Name,Bin} <- NameBins],
+ ok = erl_tar:close(HandleWrite),
+
+ chk_tar(NameBins, Config, [{crypto,Cr}]).
+
+%%--------------------------------------------------------------------
+read_crypto_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ NameBins = lists:sort(
+ [{"b1",<<"A binary">>},
+ {"b2",list_to_binary(lists:duplicate(750000,"a"))}
+ ]),
+ Cinitw = fun() -> {ok, no_state, _SendSize=5} end,
+ Cinitr = fun() -> {ok, no_state, _FetchSize=42} end,
+
+ Cenc = fun(Bin,CState) -> {ok,stuff(Bin),CState,_SendSize=42*42} end,
+ Cdec = fun(Bin,CState) -> {ok,unstuff(Bin),CState,_FetchSize=120} end,
+ Cendw = fun(Bin,_CState) -> {ok,stuff(Bin)} end,
+ Cw = {Cinitw,Cenc,Cendw},
+ Cr = {Cinitr,Cdec},
+
+ {ok,HandleWrite} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,Cw}]),
+ [ok = erl_tar:add(HandleWrite, Bin, Name, [verbose])
+ || {Name,Bin} <- NameBins],
+ ok = erl_tar:close(HandleWrite),
+
+ chk_tar(NameBins, Config, [{crypto,Cr}]).
+
+%%--------------------------------------------------------------------
+aes_cbc256_crypto_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ NameBins = lists:sort(
+ [{"b1",<<"A binary">>},
+ {"b2",list_to_binary(lists:duplicate(750000,"a"))},
+ {"d1",fn("d1",Config)} % Dir
+ ]),
+ Key = <<"This is a 256 bit key. Boring...">>,
+ Ivec0 = crypto:rand_bytes(16),
+ DataSize = 1024, % data_size rem 16 = 0 for aes_cbc
+
+ Cinitw = fun() -> {ok, Ivec0, DataSize} end,
+ Cinitr = fun() -> {ok, Ivec0, DataSize} end,
+
+ Cenc = fun(PlainBin,Ivec) ->
+ CipherBin = crypto:block_encrypt(aes_cbc256, Key, Ivec, PlainBin),
+ {ok, CipherBin, crypto:next_iv(aes_cbc,CipherBin), DataSize}
+ end,
+ Cdec = fun(CipherBin,Ivec) ->
+ PlainBin = crypto:block_decrypt(aes_cbc256, Key, Ivec, CipherBin),
+ {ok, PlainBin, crypto:next_iv(aes_cbc,CipherBin), DataSize}
+ end,
+
+ Cendw = fun(PlainBin, _) when PlainBin == <<>> -> {ok, <<>>};
+ (PlainBin, Ivec) ->
+ CipherBin = crypto:block_encrypt(aes_cbc256, Key, Ivec,
+ pad(16,PlainBin)), %% Last chunk
+ {ok, CipherBin}
+ end,
+
+ Cw = {Cinitw,Cenc,Cendw},
+ {ok,HandleWrite} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,Cw}]),
+ [ok = erl_tar:add(HandleWrite, Bin, Name, [verbose]) || {Name,Bin} <- NameBins],
+ ok = erl_tar:close(HandleWrite),
+
+ Cr = {Cinitr,Cdec},
+ chk_tar(NameBins, Config, [{crypto,Cr}]).
+
+
+pad(BlockSize, Bin) ->
+ PadSize = (BlockSize - (size(Bin) rem BlockSize)) rem BlockSize,
+ list_to_binary( lists:duplicate(PadSize,0) ).
+
+%%--------------------------------------------------------------------
+aes_ctr_stream_crypto_tar(Config) ->
+ ChPid2 = ?config(channel_pid2, Config),
+ NameBins = lists:sort(
+ [{"b1",<<"A binary">>},
+ {"b2",list_to_binary(lists:duplicate(750000,"a"))},
+ {"d1",fn("d1",Config)} % Dir
+ ]),
+ Key = <<"This is a 256 bit key. Boring...">>,
+ Ivec0 = crypto:rand_bytes(16),
+
+ Cinitw = Cinitr = fun() -> {ok, crypto:stream_init(aes_ctr,Key,Ivec0)} end,
+
+ Cenc = fun(PlainBin,State) ->
+ {NewState,CipherBin} = crypto:stream_encrypt(State, PlainBin),
+ {ok, CipherBin, NewState}
+ end,
+ Cdec = fun(CipherBin,State) ->
+ {NewState,PlainBin} = crypto:stream_decrypt(State, CipherBin),
+ {ok, PlainBin, NewState}
+ end,
+
+ Cendw = fun(PlainBin, _) when PlainBin == <<>> -> {ok, <<>>};
+ (PlainBin, Ivec) ->
+ CipherBin = crypto:block_encrypt(aes_cbc256, Key, Ivec,
+ pad(16,PlainBin)), %% Last chunk
+ {ok, CipherBin}
+ end,
+
+ Cw = {Cinitw,Cenc,Cendw},
+ {ok,HandleWrite} = ssh_sftp:open_tar(ChPid2, fnp(?tar_file_name,Config), [write,{crypto,Cw}]),
+ [ok = erl_tar:add(HandleWrite, Bin, Name, [verbose]) || {Name,Bin} <- NameBins],
+ ok = erl_tar:close(HandleWrite),
+
+ Cr = {Cinitr,Cdec},
+ chk_tar(NameBins, Config, [{crypto,Cr}]).
+
+%%--------------------------------------------------------------------
%% Internal functions ------------------------------------------------
%%--------------------------------------------------------------------
prep(Config) ->
@@ -597,34 +808,82 @@ prep(Config) ->
FileInfo#file_info{mode = Mode}).
+
chk_tar(Items, Config) ->
- %% FIXME: ought to check that no more than expected is present...
+ chk_tar(Items, Config, []).
+
+chk_tar(Items, Config, Opts) ->
+ chk_tar(Items, fnp(?tar_file_name,Config), Config, Opts).
+
+chk_tar(Items, TarFileName, Config, Opts) when is_list(Opts) ->
+ tar_size(TarFileName, Config),
{ChPid,_} = ?config(sftp,Config),
- ok = file:set_cwd(?config(priv_dir,Config)),
- file:make_dir("tar_chk"), % May already exist
- ok = file:set_cwd("tar_chk"),
- {ok,Data} = ssh_sftp:read_file(ChPid, fnp(?tar_file_name,Config)),
- ok = file:write_file(?tar_file_name, Data),
- os:cmd("tar xf "++?tar_file_name),
- lists:foreach(fun(Item) -> chk_contents(Item,Config) end,
- Items).
-
-
-chk_contents({Name,ExpectBin}, _Config) ->
- case file:read_file(Name) of
- {ok,ExpectBin} ->
- ok;
- {ok,OtherBin} ->
- ct:log("File: ~p~n Got: ~p~nExpect: ~p",[Name,OtherBin,ExpectBin]),
- ct:fail("Bad contents in file ~p",[Name]);
- Other ->
- ct:log("File: ~p~nOther: ~p",[Name,Other]),
- ct:fail("Error reading of file ~p",[Name])
- end;
-chk_contents(Name, Config) ->
- {ok,Bin} = file:read_file(fn(Name,Config)),
- chk_contents({Name,Bin}, Config).
+ {ok,HandleRead} = ssh_sftp:open_tar(ChPid, TarFileName, [read|Opts]),
+ {ok,NameValueList} = erl_tar:extract(HandleRead,[memory,verbose]),
+ ok = erl_tar:close(HandleRead),
+ case {lists:sort(expand_items(Items,Config)), lists:sort(NameValueList)} of
+ {L,L} ->
+ true;
+ {Expect,Actual} ->
+ ct:log("Expect: ~p",[Expect]), ct:log("Actual: ~p",[Actual]),
+ case erl_tar:table(TarFileName) of
+ {ok,Names} -> ct:log("names: ~p",[Names]);
+ Other -> ct:log("~p",[Other])
+ end,
+ ct:log("~s",[analyze_report(Expect, Actual)]),
+ ct:fail(bad_tar_contents)
+ end.
+analyze_report([E={NameE,BinE}|Es], [A={NameA,BinA}|As]) ->
+ if
+ NameE == NameA,
+ BinE =/= BinA->
+ [["Component ",NameE," differs. \n Expected: ",BinE,"\n Actual: ",BinA,"\n\n"]
+ | analyze_report(Es,As)];
+
+ NameE < NameA ->
+ [["Component ",NameE," is missing.\n\n"]
+ | analyze_report(Es,[A|As])];
+
+ NameE > NameA ->
+ [["Component ",NameA," is not expected.\n\n"]
+ | analyze_report([E|Es],As)];
+ true ->
+ analyze_report(Es, As)
+ end;
+analyze_report([{NameE,_BinE}|Es], []) ->
+ [["Component ",NameE," missing.\n\n"] | analyze_report(Es,[])];
+analyze_report([], [{NameA,_BinA}|As]) ->
+ [["Component ",NameA," not expected.\n\n"] | analyze_report([],As)];
+analyze_report([], []) ->
+ "".
+
+tar_size(TarFileName, Config) ->
+ {ChPid,_} = ?config(sftp,Config),
+ {ok,Data} = ssh_sftp:read_file(ChPid, TarFileName),
+ io:format('Tar file ~p is~n ~p bytes.~n',[TarFileName, size(Data)]).
+
+expand_items(Items, Config) ->
+ lists:flatten(
+ [case Item of
+ {_Name,Bin} when is_binary(Bin) ->
+ Item;
+ {Name,FileName} when is_list(FileName) ->
+ read_item_contents(Name, fn(FileName,Config));
+ FileName when is_list(FileName) ->
+ read_item_contents(FileName, fn(FileName,Config))
+ end || Item <- Items]).
+
+read_item_contents(ItemName, FileName) ->
+ case file:read_file(FileName) of
+ {ok,Bin} ->
+ {ItemName, Bin};
+ {error,eisdir} ->
+ {ok,FileNames} = file:list_dir(FileName),
+ [read_item_contents(filename:join(ItemName,Name),
+ filename:join(FileName,Name))
+ || Name<-FileNames]
+ end.
fn(Name, Config) ->
Dir = ?config(data_dir, Config),