diff options
Diffstat (limited to 'erts/preloaded/src/prim_zip.erl')
| -rw-r--r-- | erts/preloaded/src/prim_zip.erl | 89 |
1 files changed, 60 insertions, 29 deletions
diff --git a/erts/preloaded/src/prim_zip.erl b/erts/preloaded/src/prim_zip.erl index 3f5a5b9721..6a9856fdad 100644 --- a/erts/preloaded/src/prim_zip.erl +++ b/erts/preloaded/src/prim_zip.erl @@ -65,34 +65,55 @@ filter_fun() -> open(F) -> open(filter_fun(), undefined, F). -open(FilterFun, FilterAcc, F) -> - case ?CATCH do_open(FilterFun, FilterAcc, F) of - {ok, PrimZip, Acc} -> - {ok, PrimZip, Acc}; - Error -> - {error, Error} - end. +open(FilterFun, FilterAcc, F) when is_function(FilterFun, 2) -> + try + do_open(FilterFun, FilterAcc, F) + catch + throw:{filter_fun_throw, Reason} -> + throw(Reason); + throw:InternalReason -> + {error, InternalReason}; + Class:Reason -> + erlang:error(erlang:raise(Class, Reason, erlang:get_stacktrace())) + end; +open(_, _, _) -> + {error, einval}. do_open(FilterFun, FilterAcc, F) -> Input = get_zip_input(F), In0 = Input({open, F, [read, binary, raw]}, []), Z = zlib:open(), PrimZip = #primzip{files = [], zlib = Z, in = In0, input = Input}, - {PrimZip2, FilterAcc2} = get_central_dir(PrimZip, FilterFun, FilterAcc), - {ok, PrimZip2, FilterAcc2}. + try + {PrimZip2, FilterAcc2} = get_central_dir(PrimZip, FilterFun, FilterAcc), + {ok, PrimZip2, FilterAcc2} + catch + Class:Reason -> + close(PrimZip), + erlang:error(erlang:raise(Class, Reason, erlang:get_stacktrace())) + end. %% iterate over all files in a zip archive -foldl(FilterFun, FilterAcc, #primzip{files = Files} = PrimZip) -> - case ?CATCH do_foldl(FilterFun, FilterAcc, Files, [], PrimZip, PrimZip) of - {ok, FilterAcc2, PrimZip2} -> {ok, PrimZip2, FilterAcc2}; - Error -> {error, Error} +foldl(FilterFun, FilterAcc, #primzip{files = Files} = PrimZip) + when is_function(FilterFun, 2) -> + try + {ok, FilterAcc2, PrimZip2} = + do_foldl(FilterFun, FilterAcc, Files, [], PrimZip, PrimZip), + {ok, PrimZip2, FilterAcc2} + catch + throw:{filter_fun_throw, Reason} -> + throw(Reason); + throw:InternalReason -> + {error, InternalReason}; + Class:Reason -> + erlang:error(erlang:raise(Class, Reason, erlang:get_stacktrace())) end; foldl(_, _, _) -> {error, einval}. do_foldl(FilterFun, FilterAcc, [PF | Tail], Acc0, PrimZip, PrimZipOrig) -> #primzip_file{name = F, get_info = GetInfo, get_bin = GetBin} = PF, - case FilterFun({F, GetInfo, GetBin}, FilterAcc) of + try FilterFun({F, GetInfo, GetBin}, FilterAcc) of {Continue, Include, FilterAcc2} -> Acc1 = include_acc(Include, PF, Acc0), case Continue of @@ -103,6 +124,9 @@ do_foldl(FilterFun, FilterAcc, [PF | Tail], Acc0, PrimZip, PrimZipOrig) -> end; FilterRes -> throw({illegal_filter, FilterRes}) + catch + throw:Reason -> + throw({filter_fun_throw, Reason}) end; do_foldl(_FilterFun, FilterAcc, [], Acc, PrimZip, _PrimZipOrig) -> {ok, FilterAcc, PrimZip#primzip{files = reverse(Acc)}}. @@ -121,12 +145,14 @@ include_acc(Include, PF, Acc) -> List when is_list(List) -> %% Add new entries Fun = fun(I, A) -> include_acc(I, PF, A) end, - lists_foldl(Fun, Acc, List) + lists_foldl(Fun, Acc, List); + Bad -> + throw({illegal_filter, Bad}) end. lists_foldl(F, Accu, [Hd|Tail]) -> lists_foldl(F, F(Hd, Accu), Tail); -lists_foldl(F, Accu, []) when is_function(F, 2) -> +lists_foldl(F, Accu, []) when is_function(F, 2) -> Accu. %% close a zip archive @@ -139,7 +165,9 @@ close(_) -> get_zip_input({F, B}) when is_binary(B), is_list(F) -> fun binary_io/2; get_zip_input(F) when is_list(F) -> - fun prim_file_io/2. + fun prim_file_io/2; +get_zip_input(_) -> + throw(einval). %% get a file from the archive get_z_file(F, Offset, ChunkSize, #primzip{zlib = Z, in = In0, input = Input}) -> @@ -218,15 +246,15 @@ get_cd_loop(N, BCD, Acc0, PrimZip, FileName, Offset, CFH, EndOffset, FilterFun, GetInfo = fun() -> cd_file_header_to_file_info(FileName, CFH, <<>>) end, GetBin = fun() -> get_z_file(FileName, Offset, Size, PrimZip) end, PF = #primzip_file{name = FileName, get_info = GetInfo, get_bin = GetBin}, - case FilterFun({FileName, GetInfo, GetBin}, FilterAcc) of + try FilterFun({FileName, GetInfo, GetBin}, FilterAcc) of {Continue, Include, FilterAcc2} -> Acc1 = case Include of - false -> + false -> Acc0; true -> [PF | Acc0]; - {true, Nick} -> + {true, Nick} -> [PF#primzip_file{name = Nick} | Acc0]; {true, Nick, GI, GB} -> PF2 = #primzip_file{name = Nick, get_info = GI, get_bin = GB}, @@ -247,13 +275,16 @@ get_cd_loop(N, BCD, Acc0, PrimZip, FileName, Offset, CFH, EndOffset, FilterFun, end; FilterRes -> throw({illegal_filter, FilterRes}) + catch + throw:Reason -> + throw({filter_fun_throw, Reason}) end. get_file_header(BCD) -> BCFH = case BCD of <<?CENTRAL_FILE_MAGIC:32/little, - B:(?CENTRAL_FILE_HEADER_SZ-4)/binary, + B:(?CENTRAL_FILE_HEADER_SZ-4)/binary, _/binary>> -> B; _ -> @@ -266,11 +297,11 @@ get_file_header(BCD) -> ToGet = FileNameLen + ExtraLen + CommentLen, {B2, BCDRest} = case BCD of - <<_:?CENTRAL_FILE_HEADER_SZ/binary, + <<_:?CENTRAL_FILE_HEADER_SZ/binary, G:ToGet/binary, - Rest/binary>> -> + Rest/binary>> -> {G, Rest}; - _ -> + _ -> throw(bad_central_directory) end, FileName = get_filename_from_b2(B2, FileNameLen, ExtraLen, CommentLen), @@ -319,9 +350,9 @@ prim_file_io({file_info, F}, _) -> end; prim_file_io({open, FN, Opts}, _) -> case ?CATCH prim_file:open(FN, Opts++[binary]) of - {ok, H} -> + {ok, H} -> H; - {error, E} -> + {error, E} -> throw(E) end; prim_file_io({read, N}, H) -> @@ -476,7 +507,7 @@ cd_file_header_to_file_info(FileName, %% FI; % not yet supported, and not widely used add_extra_info(FI, _) -> FI. -%% +%% %% unix_extra_field_and_var_from_bin(<<TSize:16/little, %% ATime:32/little, %% MTime:32/little, @@ -500,7 +531,7 @@ dos_date_time_to_datetime(DosDate, DosTime) -> <<Hour:5, Min:6, Sec:5>> = <<DosTime:16>>, <<YearFrom1980:7, Month:4, Day:5>> = <<DosDate:16>>, {{YearFrom1980+1980, Month, Day}, - {Hour, Min, Sec}}. + {Hour, Min, Sec}}. cd_file_header_from_bin(<<VersionMadeBy:16/little, VersionNeeded:16/little, @@ -622,7 +653,7 @@ reverse(X) -> reverse([H|T], Y) -> reverse(T, [H|Y]); -reverse([], X) -> +reverse([], X) -> X. last([E|Es]) -> last(E, Es). |