aboutsummaryrefslogtreecommitdiffstats
path: root/lib/stdlib/src
diff options
context:
space:
mode:
authorPéter Dimitrov <[email protected]>2018-06-08 13:24:02 +0200
committerPéter Dimitrov <[email protected]>2018-06-11 14:53:54 +0200
commit1ff534f6e410c4904b6e65dbfc9135d34445685d (patch)
tree65fc663a372681c736e848b672d71a4bda896813 /lib/stdlib/src
parent9ee83cf9c8d5b322e5361ebc067c00222c0c56ae (diff)
downloadotp-1ff534f6e410c4904b6e65dbfc9135d34445685d.tar.gz
otp-1ff534f6e410c4904b6e65dbfc9135d34445685d.tar.bz2
otp-1ff534f6e410c4904b6e65dbfc9135d34445685d.zip
stdlib: Fix normalization function in uri_string
- Fix parsing of hostnames that start with a number. - Update uri_string:parse/1 to be only responsible for parsing input URIs into URI components. Implicit percent-encoding normalization has been removed. - Implement percent-encoding normalization. - Update uri_string:normalize/{1,2} to include percent-encoding normalization. - Update test suites according to the new semantics. - Add new property test: normalize Change-Id: I6f37dcae2b3fcb4b29d286dbb0dfc563e8f211ae
Diffstat (limited to 'lib/stdlib/src')
-rw-r--r--lib/stdlib/src/uri_string.erl206
1 files changed, 129 insertions, 77 deletions
diff --git a/lib/stdlib/src/uri_string.erl b/lib/stdlib/src/uri_string.erl
index 28d36ea229..48cce90d68 100644
--- a/lib/stdlib/src/uri_string.erl
+++ b/lib/stdlib/src/uri_string.erl
@@ -297,7 +297,10 @@
NormalizedURI :: uri_string()
| error().
normalize(URIMap) ->
- normalize(URIMap, []).
+ try normalize(URIMap, [])
+ catch
+ throw:{error, Atom, RestData} -> {error, Atom, RestData}
+ end.
-spec normalize(URI, Options) -> NormalizedURI when
@@ -523,34 +526,34 @@ parse_relative_part(?STRING_REST("//", Rest), URI) ->
{T, URI1} ->
Userinfo = calculate_parsed_userinfo(Rest, T),
URI2 = maybe_add_path(URI1),
- URI2#{userinfo => decode_userinfo(Userinfo)}
+ URI2#{userinfo => Userinfo}
catch
throw:{_,_,_} ->
{T, URI1} = parse_host(Rest, URI),
Host = calculate_parsed_host_port(Rest, T),
URI2 = maybe_add_path(URI1),
- URI2#{host => decode_host(remove_brackets(Host))}
+ URI2#{host => remove_brackets(Host)}
end;
parse_relative_part(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-absolute
Path = calculate_parsed_part(Rest, T),
- URI1#{path => decode_path(?STRING_REST($/, Path))};
+ URI1#{path => ?STRING_REST($/, Path)};
parse_relative_part(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
URI2 = maybe_add_path(URI1),
- URI2#{query => decode_query(Query)};
+ URI2#{query => Query};
parse_relative_part(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
URI2 = maybe_add_path(URI1),
- URI2#{fragment => decode_fragment(Fragment)};
+ URI2#{fragment => Fragment};
parse_relative_part(?STRING_REST(Char, Rest), URI) ->
case is_segment_nz_nc(Char) of
true ->
{T, URI1} = parse_segment_nz_nc(Rest, URI), % path-noscheme
Path = calculate_parsed_part(Rest, T),
- URI1#{path => decode_path(?STRING_REST(Char, Path))};
+ URI1#{path => ?STRING_REST(Char, Path)};
false -> throw({error,invalid_uri,[Char]})
end.
@@ -593,11 +596,11 @@ parse_segment(?STRING_REST($/, Rest), URI) ->
parse_segment(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_segment(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI),
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_segment(?STRING_REST(Char, Rest), URI) ->
case is_pchar(Char) of
true -> parse_segment(Rest, URI);
@@ -616,11 +619,11 @@ parse_segment_nz_nc(?STRING_REST($/, Rest), URI) ->
parse_segment_nz_nc(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_segment_nz_nc(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI),
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_segment_nz_nc(?STRING_REST(Char, Rest), URI) ->
case is_segment_nz_nc(Char) of
true -> parse_segment_nz_nc(Rest, URI);
@@ -709,31 +712,31 @@ parse_hier(?STRING_REST("//", Rest), URI) ->
try parse_userinfo(Rest, URI) of
{T, URI1} ->
Userinfo = calculate_parsed_userinfo(Rest, T),
- {Rest, URI1#{userinfo => decode_userinfo(Userinfo)}}
+ {Rest, URI1#{userinfo => Userinfo}}
catch
throw:{_,_,_} ->
{T, URI1} = parse_host(Rest, URI),
Host = calculate_parsed_host_port(Rest, T),
- {Rest, URI1#{host => decode_host(remove_brackets(Host))}}
+ {Rest, URI1#{host => remove_brackets(Host)}}
end;
parse_hier(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-absolute
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_hier(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_hier(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_hier(?STRING_REST(Char, Rest), URI) -> % path-rootless
case is_pchar(Char) of
true -> % segment_nz
{T, URI1} = parse_segment(Rest, URI),
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST(Char, Path))}};
+ {Rest, URI1#{path => ?STRING_REST(Char, Path)}};
false -> throw({error,invalid_uri,[Char]})
end;
parse_hier(?STRING_EMPTY, URI) ->
@@ -770,7 +773,7 @@ parse_userinfo(?CHAR($@), URI) ->
parse_userinfo(?STRING_REST($@, Rest), URI) ->
{T, URI1} = parse_host(Rest, URI),
Host = calculate_parsed_host_port(Rest, T),
- {Rest, URI1#{host => decode_host(remove_brackets(Host))}};
+ {Rest, URI1#{host => remove_brackets(Host)}};
parse_userinfo(?STRING_REST(Char, Rest), URI) ->
case is_userinfo(Char) of
true -> parse_userinfo(Rest, URI);
@@ -836,20 +839,25 @@ parse_host(?STRING_REST($:, Rest), URI) ->
parse_host(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-abempty
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_host(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_host(?STRING_REST($[, Rest), URI) ->
parse_ipv6_bin(Rest, [], URI);
parse_host(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_host(?STRING_REST(Char, Rest), URI) ->
case is_digit(Char) of
- true -> parse_ipv4_bin(Rest, [Char], URI);
+ true ->
+ try parse_ipv4_bin(Rest, [Char], URI)
+ catch
+ throw:{_,_,_} ->
+ parse_reg_name(?STRING_REST(Char, Rest), URI)
+ end;
false -> parse_reg_name(?STRING_REST(Char, Rest), URI)
end;
parse_host(?STRING_EMPTY, URI) ->
@@ -865,15 +873,15 @@ parse_reg_name(?STRING_REST($:, Rest), URI) ->
parse_reg_name(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-abempty
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_reg_name(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_reg_name(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_reg_name(?STRING_REST(Char, Rest), URI) ->
case is_reg_name(Char) of
true -> parse_reg_name(Rest, URI);
@@ -899,17 +907,17 @@ parse_ipv4_bin(?STRING_REST($/, Rest), Acc, URI) ->
_ = validate_ipv4_address(lists:reverse(Acc)),
{T, URI1} = parse_segment(Rest, URI), % path-abempty
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_ipv4_bin(?STRING_REST($?, Rest), Acc, URI) ->
_ = validate_ipv4_address(lists:reverse(Acc)),
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_ipv4_bin(?STRING_REST($#, Rest), Acc, URI) ->
_ = validate_ipv4_address(lists:reverse(Acc)),
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_ipv4_bin(?STRING_REST(Char, Rest), Acc, URI) ->
case is_ipv4(Char) of
true -> parse_ipv4_bin(Rest, [Char|Acc], URI);
@@ -961,15 +969,15 @@ parse_ipv6_bin_end(?STRING_REST($:, Rest), URI) ->
parse_ipv6_bin_end(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-abempty
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_ipv6_bin_end(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_ipv6_bin_end(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_ipv6_bin_end(?STRING_REST(Char, Rest), URI) ->
case is_ipv6(Char) of
true -> parse_ipv6_bin_end(Rest, URI);
@@ -999,15 +1007,15 @@ validate_ipv6_address(Addr) ->
parse_port(?STRING_REST($/, Rest), URI) ->
{T, URI1} = parse_segment(Rest, URI), % path-abempty
Path = calculate_parsed_part(Rest, T),
- {Rest, URI1#{path => decode_path(?STRING_REST($/, Path))}};
+ {Rest, URI1#{path => ?STRING_REST($/, Path)}};
parse_port(?STRING_REST($?, Rest), URI) ->
{T, URI1} = parse_query(Rest, URI), % path-empty ?query
Query = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{query => decode_query(Query)}};
+ {Rest, URI1#{query => Query}};
parse_port(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI), % path-empty
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_port(?STRING_REST(Char, Rest), URI) ->
case is_digit(Char) of
true -> parse_port(Rest, URI);
@@ -1033,7 +1041,7 @@ parse_port(?STRING_EMPTY, URI) ->
parse_query(?STRING_REST($#, Rest), URI) ->
{T, URI1} = parse_fragment(Rest, URI),
Fragment = calculate_parsed_query_fragment(Rest, T),
- {Rest, URI1#{fragment => decode_fragment(Fragment)}};
+ {Rest, URI1#{fragment => Fragment}};
parse_query(?STRING_REST(Char, Rest), URI) ->
case is_query(Char) of
true -> parse_query(Rest, URI);
@@ -1088,6 +1096,31 @@ is_fragment(Char) -> is_pchar(Char).
%%
%%-------------------------------------------------------------------------
+%% Return true if input char is reserved.
+-spec is_reserved(char()) -> boolean().
+is_reserved($:) -> true;
+is_reserved($/) -> true;
+is_reserved($?) -> true;
+is_reserved($#) -> true;
+is_reserved($[) -> true;
+is_reserved($]) -> true;
+is_reserved($@) -> true;
+
+is_reserved($!) -> true;
+is_reserved($$) -> true;
+is_reserved($&) -> true;
+is_reserved($') -> true;
+is_reserved($() -> true;
+is_reserved($)) -> true;
+
+is_reserved($*) -> true;
+is_reserved($+) -> true;
+is_reserved($,) -> true;
+is_reserved($;) -> true;
+is_reserved($=) -> true;
+is_reserved(_) -> false.
+
+
%% Check if char is sub-delim.
-spec is_sub_delim(char()) -> boolean().
is_sub_delim($!) -> true;
@@ -1276,36 +1309,6 @@ byte_size_exl_head(Binary) -> byte_size(Binary) + 1.
%%
%% pct-encoded = "%" HEXDIG HEXDIG
%%-------------------------------------------------------------------------
--spec decode_userinfo(binary()) -> binary().
-decode_userinfo(Cs) ->
- check_utf8(decode(Cs, fun is_userinfo/1, <<>>)).
-
--spec decode_host(binary()) -> binary().
-decode_host(Cs) ->
- check_utf8(decode(Cs, fun is_host/1, <<>>)).
-
--spec decode_path(binary()) -> binary().
-decode_path(Cs) ->
- check_utf8(decode(Cs, fun is_path/1, <<>>)).
-
--spec decode_query(binary()) -> binary().
-decode_query(Cs) ->
- check_utf8(decode(Cs, fun is_query/1, <<>>)).
-
--spec decode_fragment(binary()) -> binary().
-decode_fragment(Cs) ->
- check_utf8(decode(Cs, fun is_fragment/1, <<>>)).
-
-
-%% Returns Cs if it is utf8 encoded.
-check_utf8(Cs) ->
- case unicode:characters_to_list(Cs) of
- {incomplete,_,_} ->
- throw({error,invalid_utf8,Cs});
- {error,_,_} ->
- throw({error,invalid_utf8,Cs});
- _ -> Cs
- end.
%%-------------------------------------------------------------------------
%% Percent-encode
@@ -1351,20 +1354,56 @@ encode_fragment(Cs) ->
%%-------------------------------------------------------------------------
%% Helper funtions for percent-decode
%%-------------------------------------------------------------------------
-decode(<<$%,C0,C1,Cs/binary>>, Fun, Acc) ->
+
+-spec decode(list()|binary()) -> list() | binary().
+decode(Cs) ->
+ decode(Cs, <<>>).
+%%
+decode(L, Acc) when is_list(L) ->
+ B0 = unicode:characters_to_binary(L),
+ B1 = decode(B0, Acc),
+ unicode:characters_to_list(B1);
+decode(<<$%,C0,C1,Cs/binary>>, Acc) ->
case is_hex_digit(C0) andalso is_hex_digit(C1) of
true ->
B = ?HEX2DEC(C0)*16+?HEX2DEC(C1),
- decode(Cs, Fun, <<Acc/binary, B>>);
+ case is_reserved(B) of
+ true ->
+ %% [2.2] Characters in the reserved set are protected from
+ %% normalization.
+ %% [2.1] For consistency, URI producers and normalizers should
+ %% use uppercase hexadecimal digits for all percent-
+ %% encodings.
+ H0 = hex_to_upper(C0),
+ H1 = hex_to_upper(C1),
+ decode(Cs, <<Acc/binary,$%,H0,H1>>);
+ false ->
+ decode(Cs, <<Acc/binary, B>>)
+ end;
false -> throw({error,invalid_percent_encoding,<<$%,C0,C1>>})
end;
-decode(<<C,Cs/binary>>, Fun, Acc) ->
- case Fun(C) of
- true -> decode(Cs, Fun, <<Acc/binary, C>>);
- false -> throw({error,invalid_percent_encoding,<<C,Cs/binary>>})
- end;
-decode(<<>>, _Fun, Acc) ->
- Acc.
+decode(<<C,Cs/binary>>, Acc) ->
+ decode(Cs, <<Acc/binary, C>>);
+decode(<<>>, Acc) ->
+ check_utf8(Acc).
+
+%% Returns Cs if it is utf8 encoded.
+check_utf8(Cs) ->
+ case unicode:characters_to_list(Cs) of
+ {incomplete,_,_} ->
+ throw({error,invalid_utf8,Cs});
+ {error,_,_} ->
+ throw({error,invalid_utf8,Cs});
+ _ -> Cs
+ end.
+
+%% Convert hex digit to uppercase form
+hex_to_upper(H) when $a =< H, H =< $f ->
+ H - 32;
+hex_to_upper(H) when $0 =< H, H =< $9;$A =< H, H =< $F->
+ H;
+hex_to_upper(H) ->
+ throw({error,invalid_input, H}).
%% Check if char is allowed in host
-spec is_host(char()) -> boolean().
@@ -1925,9 +1964,10 @@ base10_decode_unicode(<<H,_/binary>>, _, _) ->
%%-------------------------------------------------------------------------
normalize_map(URIMap) ->
- normalize_path_segment(
- normalize_scheme_based(
- normalize_case(URIMap))).
+ normalize_path_segment(
+ normalize_scheme_based(
+ normalize_percent_encoding(
+ normalize_case(URIMap)))).
%% 6.2.2.1. Case Normalization
@@ -1942,6 +1982,18 @@ normalize_case(#{} = Map) ->
Map.
+%% 6.2.2.2. Percent-Encoding Normalization
+normalize_percent_encoding(Map) ->
+ Fun = fun (K,V) when K =:= userinfo; K =:= host; K =:= path;
+ K =:= query; K =:= fragment ->
+ decode(V);
+ %% Handle port and scheme
+ (_,V) ->
+ V
+ end,
+ maps:map(Fun, Map).
+
+
to_lower(Cs) when is_list(Cs) ->
B = convert_to_binary(Cs, utf8, utf8),
convert_to_list(to_lower(B), utf8);