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-%% @author Bob Ippolito <bob@mochimedia.com>
-%% @copyright 2007 Mochi Media, Inc.
-
-%% @doc Utilities for parsing and quoting.
-
--module(mochiweb_util).
--author('bob@mochimedia.com').
--export([join/2, quote_plus/1, urlencode/1, parse_qs/1, unquote/1]).
--export([path_split/1]).
--export([urlsplit/1, urlsplit_path/1, urlunsplit/1, urlunsplit_path/1]).
--export([guess_mime/1, parse_header/1]).
--export([shell_quote/1, cmd/1, cmd_string/1, cmd_port/2]).
--export([record_to_proplist/2, record_to_proplist/3]).
--export([safe_relative_path/1, partition/2]).
--export([parse_qvalues/1, pick_accepted_encodings/3]).
--export([test/0]).
-
--define(PERCENT, 37). % $\%
--define(FULLSTOP, 46). % $\.
--define(IS_HEX(C), ((C >= $0 andalso C =< $9) orelse
- (C >= $a andalso C =< $f) orelse
- (C >= $A andalso C =< $F))).
--define(QS_SAFE(C), ((C >= $a andalso C =< $z) orelse
- (C >= $A andalso C =< $Z) orelse
- (C >= $0 andalso C =< $9) orelse
- (C =:= ?FULLSTOP orelse C =:= $- orelse C =:= $~ orelse
- C =:= $_))).
-
-hexdigit(C) when C < 10 -> $0 + C;
-hexdigit(C) when C < 16 -> $A + (C - 10).
-
-unhexdigit(C) when C >= $0, C =< $9 -> C - $0;
-unhexdigit(C) when C >= $a, C =< $f -> C - $a + 10;
-unhexdigit(C) when C >= $A, C =< $F -> C - $A + 10.
-
-%% @spec partition(String, Sep) -> {String, [], []} | {Prefix, Sep, Postfix}
-%% @doc Inspired by Python 2.5's str.partition:
-%% partition("foo/bar", "/") = {"foo", "/", "bar"},
-%% partition("foo", "/") = {"foo", "", ""}.
-partition(String, Sep) ->
- case partition(String, Sep, []) of
- undefined ->
- {String, "", ""};
- Result ->
- Result
- end.
-
-partition("", _Sep, _Acc) ->
- undefined;
-partition(S, Sep, Acc) ->
- case partition2(S, Sep) of
- undefined ->
- [C | Rest] = S,
- partition(Rest, Sep, [C | Acc]);
- Rest ->
- {lists:reverse(Acc), Sep, Rest}
- end.
-
-partition2(Rest, "") ->
- Rest;
-partition2([C | R1], [C | R2]) ->
- partition2(R1, R2);
-partition2(_S, _Sep) ->
- undefined.
-
-
-
-%% @spec safe_relative_path(string()) -> string() | undefined
-%% @doc Return the reduced version of a relative path or undefined if it
-%% is not safe. safe relative paths can be joined with an absolute path
-%% and will result in a subdirectory of the absolute path.
-safe_relative_path("/" ++ _) ->
- undefined;
-safe_relative_path(P) ->
- safe_relative_path(P, []).
-
-safe_relative_path("", Acc) ->
- case Acc of
- [] ->
- "";
- _ ->
- string:join(lists:reverse(Acc), "/")
- end;
-safe_relative_path(P, Acc) ->
- case partition(P, "/") of
- {"", "/", _} ->
- %% /foo or foo//bar
- undefined;
- {"..", _, _} when Acc =:= [] ->
- undefined;
- {"..", _, Rest} ->
- safe_relative_path(Rest, tl(Acc));
- {Part, "/", ""} ->
- safe_relative_path("", ["", Part | Acc]);
- {Part, _, Rest} ->
- safe_relative_path(Rest, [Part | Acc])
- end.
-
-%% @spec shell_quote(string()) -> string()
-%% @doc Quote a string according to UNIX shell quoting rules, returns a string
-%% surrounded by double quotes.
-shell_quote(L) ->
- shell_quote(L, [$\"]).
-
-%% @spec cmd_port([string()], Options) -> port()
-%% @doc open_port({spawn, mochiweb_util:cmd_string(Argv)}, Options).
-cmd_port(Argv, Options) ->
- open_port({spawn, cmd_string(Argv)}, Options).
-
-%% @spec cmd([string()]) -> string()
-%% @doc os:cmd(cmd_string(Argv)).
-cmd(Argv) ->
- os:cmd(cmd_string(Argv)).
-
-%% @spec cmd_string([string()]) -> string()
-%% @doc Create a shell quoted command string from a list of arguments.
-cmd_string(Argv) ->
- join([shell_quote(X) || X <- Argv], " ").
-
-%% @spec join([string()], Separator) -> string()
-%% @doc Join a list of strings together with the given separator
-%% string or char.
-join([], _Separator) ->
- [];
-join([S], _Separator) ->
- lists:flatten(S);
-join(Strings, Separator) ->
- lists:flatten(revjoin(lists:reverse(Strings), Separator, [])).
-
-revjoin([], _Separator, Acc) ->
- Acc;
-revjoin([S | Rest], Separator, []) ->
- revjoin(Rest, Separator, [S]);
-revjoin([S | Rest], Separator, Acc) ->
- revjoin(Rest, Separator, [S, Separator | Acc]).
-
-%% @spec quote_plus(atom() | integer() | float() | string() | binary()) -> string()
-%% @doc URL safe encoding of the given term.
-quote_plus(Atom) when is_atom(Atom) ->
- quote_plus(atom_to_list(Atom));
-quote_plus(Int) when is_integer(Int) ->
- quote_plus(integer_to_list(Int));
-quote_plus(Binary) when is_binary(Binary) ->
- quote_plus(binary_to_list(Binary));
-quote_plus(Float) when is_float(Float) ->
- quote_plus(mochinum:digits(Float));
-quote_plus(String) ->
- quote_plus(String, []).
-
-quote_plus([], Acc) ->
- lists:reverse(Acc);
-quote_plus([C | Rest], Acc) when ?QS_SAFE(C) ->
- quote_plus(Rest, [C | Acc]);
-quote_plus([$\s | Rest], Acc) ->
- quote_plus(Rest, [$+ | Acc]);
-quote_plus([C | Rest], Acc) ->
- <<Hi:4, Lo:4>> = <<C>>,
- quote_plus(Rest, [hexdigit(Lo), hexdigit(Hi), ?PERCENT | Acc]).
-
-%% @spec urlencode([{Key, Value}]) -> string()
-%% @doc URL encode the property list.
-urlencode(Props) ->
- RevPairs = lists:foldl(fun ({K, V}, Acc) ->
- [[quote_plus(K), $=, quote_plus(V)] | Acc]
- end, [], Props),
- lists:flatten(revjoin(RevPairs, $&, [])).
-
-%% @spec parse_qs(string() | binary()) -> [{Key, Value}]
-%% @doc Parse a query string or application/x-www-form-urlencoded.
-parse_qs(Binary) when is_binary(Binary) ->
- parse_qs(binary_to_list(Binary));
-parse_qs(String) ->
- parse_qs(String, []).
-
-parse_qs([], Acc) ->
- lists:reverse(Acc);
-parse_qs(String, Acc) ->
- {Key, Rest} = parse_qs_key(String),
- {Value, Rest1} = parse_qs_value(Rest),
- parse_qs(Rest1, [{Key, Value} | Acc]).
-
-parse_qs_key(String) ->
- parse_qs_key(String, []).
-
-parse_qs_key([], Acc) ->
- {qs_revdecode(Acc), ""};
-parse_qs_key([$= | Rest], Acc) ->
- {qs_revdecode(Acc), Rest};
-parse_qs_key(Rest=[$; | _], Acc) ->
- {qs_revdecode(Acc), Rest};
-parse_qs_key(Rest=[$& | _], Acc) ->
- {qs_revdecode(Acc), Rest};
-parse_qs_key([C | Rest], Acc) ->
- parse_qs_key(Rest, [C | Acc]).
-
-parse_qs_value(String) ->
- parse_qs_value(String, []).
-
-parse_qs_value([], Acc) ->
- {qs_revdecode(Acc), ""};
-parse_qs_value([$; | Rest], Acc) ->
- {qs_revdecode(Acc), Rest};
-parse_qs_value([$& | Rest], Acc) ->
- {qs_revdecode(Acc), Rest};
-parse_qs_value([C | Rest], Acc) ->
- parse_qs_value(Rest, [C | Acc]).
-
-%% @spec unquote(string() | binary()) -> string()
-%% @doc Unquote a URL encoded string.
-unquote(Binary) when is_binary(Binary) ->
- unquote(binary_to_list(Binary));
-unquote(String) ->
- qs_revdecode(lists:reverse(String)).
-
-qs_revdecode(S) ->
- qs_revdecode(S, []).
-
-qs_revdecode([], Acc) ->
- Acc;
-qs_revdecode([$+ | Rest], Acc) ->
- qs_revdecode(Rest, [$\s | Acc]);
-qs_revdecode([Lo, Hi, ?PERCENT | Rest], Acc) when ?IS_HEX(Lo), ?IS_HEX(Hi) ->
- qs_revdecode(Rest, [(unhexdigit(Lo) bor (unhexdigit(Hi) bsl 4)) | Acc]);
-qs_revdecode([C | Rest], Acc) ->
- qs_revdecode(Rest, [C | Acc]).
-
-%% @spec urlsplit(Url) -> {Scheme, Netloc, Path, Query, Fragment}
-%% @doc Return a 5-tuple, does not expand % escapes. Only supports HTTP style
-%% URLs.
-urlsplit(Url) ->
- {Scheme, Url1} = urlsplit_scheme(Url),
- {Netloc, Url2} = urlsplit_netloc(Url1),
- {Path, Query, Fragment} = urlsplit_path(Url2),
- {Scheme, Netloc, Path, Query, Fragment}.
-
-urlsplit_scheme(Url) ->
- urlsplit_scheme(Url, []).
-
-urlsplit_scheme([], Acc) ->
- {"", lists:reverse(Acc)};
-urlsplit_scheme(":" ++ Rest, Acc) ->
- {string:to_lower(lists:reverse(Acc)), Rest};
-urlsplit_scheme([C | Rest], Acc) ->
- urlsplit_scheme(Rest, [C | Acc]).
-
-urlsplit_netloc("//" ++ Rest) ->
- urlsplit_netloc(Rest, []);
-urlsplit_netloc(Path) ->
- {"", Path}.
-
-urlsplit_netloc(Rest=[C | _], Acc) when C =:= $/; C =:= $?; C =:= $# ->
- {lists:reverse(Acc), Rest};
-urlsplit_netloc([C | Rest], Acc) ->
- urlsplit_netloc(Rest, [C | Acc]).
-
-
-%% @spec path_split(string()) -> {Part, Rest}
-%% @doc Split a path starting from the left, as in URL traversal.
-%% path_split("foo/bar") = {"foo", "bar"},
-%% path_split("/foo/bar") = {"", "foo/bar"}.
-path_split(S) ->
- path_split(S, []).
-
-path_split("", Acc) ->
- {lists:reverse(Acc), ""};
-path_split("/" ++ Rest, Acc) ->
- {lists:reverse(Acc), Rest};
-path_split([C | Rest], Acc) ->
- path_split(Rest, [C | Acc]).
-
-
-%% @spec urlunsplit({Scheme, Netloc, Path, Query, Fragment}) -> string()
-%% @doc Assemble a URL from the 5-tuple. Path must be absolute.
-urlunsplit({Scheme, Netloc, Path, Query, Fragment}) ->
- lists:flatten([case Scheme of "" -> ""; _ -> [Scheme, "://"] end,
- Netloc,
- urlunsplit_path({Path, Query, Fragment})]).
-
-%% @spec urlunsplit_path({Path, Query, Fragment}) -> string()
-%% @doc Assemble a URL path from the 3-tuple.
-urlunsplit_path({Path, Query, Fragment}) ->
- lists:flatten([Path,
- case Query of "" -> ""; _ -> [$? | Query] end,
- case Fragment of "" -> ""; _ -> [$# | Fragment] end]).
-
-%% @spec urlsplit_path(Url) -> {Path, Query, Fragment}
-%% @doc Return a 3-tuple, does not expand % escapes. Only supports HTTP style
-%% paths.
-urlsplit_path(Path) ->
- urlsplit_path(Path, []).
-
-urlsplit_path("", Acc) ->
- {lists:reverse(Acc), "", ""};
-urlsplit_path("?" ++ Rest, Acc) ->
- {Query, Fragment} = urlsplit_query(Rest),
- {lists:reverse(Acc), Query, Fragment};
-urlsplit_path("#" ++ Rest, Acc) ->
- {lists:reverse(Acc), "", Rest};
-urlsplit_path([C | Rest], Acc) ->
- urlsplit_path(Rest, [C | Acc]).
-
-urlsplit_query(Query) ->
- urlsplit_query(Query, []).
-
-urlsplit_query("", Acc) ->
- {lists:reverse(Acc), ""};
-urlsplit_query("#" ++ Rest, Acc) ->
- {lists:reverse(Acc), Rest};
-urlsplit_query([C | Rest], Acc) ->
- urlsplit_query(Rest, [C | Acc]).
-
-%% @spec guess_mime(string()) -> string()
-%% @doc Guess the mime type of a file by the extension of its filename.
-guess_mime(File) ->
- case filename:extension(File) of
- ".html" ->
- "text/html";
- ".xhtml" ->
- "application/xhtml+xml";
- ".xml" ->
- "application/xml";
- ".css" ->
- "text/css";
- ".js" ->
- "application/x-javascript";
- ".jpg" ->
- "image/jpeg";
- ".gif" ->
- "image/gif";
- ".png" ->
- "image/png";
- ".swf" ->
- "application/x-shockwave-flash";
- ".zip" ->
- "application/zip";
- ".bz2" ->
- "application/x-bzip2";
- ".gz" ->
- "application/x-gzip";
- ".tar" ->
- "application/x-tar";
- ".tgz" ->
- "application/x-gzip";
- ".txt" ->
- "text/plain";
- ".doc" ->
- "application/msword";
- ".pdf" ->
- "application/pdf";
- ".xls" ->
- "application/vnd.ms-excel";
- ".rtf" ->
- "application/rtf";
- ".mov" ->
- "video/quicktime";
- ".mp3" ->
- "audio/mpeg";
- ".z" ->
- "application/x-compress";
- ".wav" ->
- "audio/x-wav";
- ".ico" ->
- "image/x-icon";
- ".bmp" ->
- "image/bmp";
- ".m4a" ->
- "audio/mpeg";
- ".m3u" ->
- "audio/x-mpegurl";
- ".exe" ->
- "application/octet-stream";
- ".csv" ->
- "text/csv";
- _ ->
- "text/plain"
- end.
-
-%% @spec parse_header(string()) -> {Type, [{K, V}]}
-%% @doc Parse a Content-Type like header, return the main Content-Type
-%% and a property list of options.
-parse_header(String) ->
- %% TODO: This is exactly as broken as Python's cgi module.
- %% Should parse properly like mochiweb_cookies.
- [Type | Parts] = [string:strip(S) || S <- string:tokens(String, ";")],
- F = fun (S, Acc) ->
- case lists:splitwith(fun (C) -> C =/= $= end, S) of
- {"", _} ->
- %% Skip anything with no name
- Acc;
- {_, ""} ->
- %% Skip anything with no value
- Acc;
- {Name, [$\= | Value]} ->
- [{string:to_lower(string:strip(Name)),
- unquote_header(string:strip(Value))} | Acc]
- end
- end,
- {string:to_lower(Type),
- lists:foldr(F, [], Parts)}.
-
-unquote_header("\"" ++ Rest) ->
- unquote_header(Rest, []);
-unquote_header(S) ->
- S.
-
-unquote_header("", Acc) ->
- lists:reverse(Acc);
-unquote_header("\"", Acc) ->
- lists:reverse(Acc);
-unquote_header([$\\, C | Rest], Acc) ->
- unquote_header(Rest, [C | Acc]);
-unquote_header([C | Rest], Acc) ->
- unquote_header(Rest, [C | Acc]).
-
-%% @spec record_to_proplist(Record, Fields) -> proplist()
-%% @doc calls record_to_proplist/3 with a default TypeKey of '__record'
-record_to_proplist(Record, Fields) ->
- record_to_proplist(Record, Fields, '__record').
-
-%% @spec record_to_proplist(Record, Fields, TypeKey) -> proplist()
-%% @doc Return a proplist of the given Record with each field in the
-%% Fields list set as a key with the corresponding value in the Record.
-%% TypeKey is the key that is used to store the record type
-%% Fields should be obtained by calling record_info(fields, record_type)
-%% where record_type is the record type of Record
-record_to_proplist(Record, Fields, TypeKey)
- when tuple_size(Record) - 1 =:= length(Fields) ->
- lists:zip([TypeKey | Fields], tuple_to_list(Record)).
-
-
-shell_quote([], Acc) ->
- lists:reverse([$\" | Acc]);
-shell_quote([C | Rest], Acc) when C =:= $\" orelse C =:= $\` orelse
- C =:= $\\ orelse C =:= $\$ ->
- shell_quote(Rest, [C, $\\ | Acc]);
-shell_quote([C | Rest], Acc) ->
- shell_quote(Rest, [C | Acc]).
-
-%% @spec parse_qvalues(string()) -> [qvalue()] | error()
-%% @type qvalue() -> {element(), q()}
-%% @type element() -> string()
-%% @type q() -> 0.0 .. 1.0
-%% @type error() -> invalid_qvalue_string
-%%
-%% @doc Parses a list (given as a string) of elements with Q values associated
-%% to them. Elements are separated by commas and each element is separated
-%% from its Q value by a semicolon. Q values are optional but when missing
-%% the value of an element is considered as 1.0. A Q value is always in the
-%% range [0.0, 1.0]. A Q value list is used for example as the value of the
-%% HTTP "Accept-Encoding" header.
-%%
-%% Q values are described in section 2.9 of the RFC 2616 (HTTP 1.1).
-%%
-%% Example:
-%%
-%% parse_qvalues("gzip; q=0.5, deflate, identity;q=0.0") ->
-%% [{"gzip", 0.5}, {"deflate", 1.0}, {"identity", 0.0}]
-%%
-parse_qvalues(QValuesStr) ->
- try
- {ok, Re} = re:compile("^\\s*q\\s*=\\s*((?:0|1)(?:\\.\\d{1,3})?)\\s*$"),
- lists:map(
- fun(Pair) ->
- case string:tokens(Pair, ";") of
- [Enc] ->
- {string:strip(Enc), 1.0};
- [Enc, QStr] ->
- case re:run(QStr, Re, [{capture, [1], list}]) of
- {match, [Q]} ->
- QVal = case Q of
- "0" ->
- 0.0;
- "1" ->
- 1.0;
- Else ->
- list_to_float(Else)
- end,
- case QVal < 0.0 orelse QVal > 1.0 of
- false ->
- {string:strip(Enc), QVal}
- end
- end
- end
- end,
- string:tokens(string:to_lower(QValuesStr), ",")
- )
- catch
- _Type:_Error ->
- invalid_qvalue_string
- end.
-
-%% @spec pick_accepted_encodings(qvalues(), [encoding()], encoding()) ->
-%% [encoding()]
-%% @type qvalues() -> [ {encoding(), q()} ]
-%% @type encoding() -> string()
-%% @type q() -> 0.0 .. 1.0
-%%
-%% @doc Determines which encodings specified in the given Q values list are
-%% valid according to a list of supported encodings and a default encoding.
-%%
-%% The returned list of encodings is sorted, descendingly, according to the
-%% Q values of the given list. The last element of this list is the given
-%% default encoding unless this encoding is explicitily or implicitily
-%% marked with a Q value of 0.0 in the given Q values list.
-%% Note: encodings with the same Q value are kept in the same order as
-%% found in the input Q values list.
-%%
-%% This encoding picking process is described in section 14.3 of the
-%% RFC 2616 (HTTP 1.1).
-%%
-%% Example:
-%%
-%% pick_accepted_encodings(
-%% [{"gzip", 0.5}, {"deflate", 1.0}],
-%% ["gzip", "identity"],
-%% "identity"
-%% ) ->
-%% ["gzip", "identity"]
-%%
-pick_accepted_encodings(AcceptedEncs, SupportedEncs, DefaultEnc) ->
- SortedQList = lists:reverse(
- lists:sort(fun({_, Q1}, {_, Q2}) -> Q1 < Q2 end, AcceptedEncs)
- ),
- {Accepted, Refused} = lists:foldr(
- fun({E, Q}, {A, R}) ->
- case Q > 0.0 of
- true ->
- {[E | A], R};
- false ->
- {A, [E | R]}
- end
- end,
- {[], []},
- SortedQList
- ),
- Refused1 = lists:foldr(
- fun(Enc, Acc) ->
- case Enc of
- "*" ->
- lists:subtract(SupportedEncs, Accepted) ++ Acc;
- _ ->
- [Enc | Acc]
- end
- end,
- [],
- Refused
- ),
- Accepted1 = lists:foldr(
- fun(Enc, Acc) ->
- case Enc of
- "*" ->
- lists:subtract(SupportedEncs, Accepted ++ Refused1) ++ Acc;
- _ ->
- [Enc | Acc]
- end
- end,
- [],
- Accepted
- ),
- Accepted2 = case lists:member(DefaultEnc, Accepted1) of
- true ->
- Accepted1;
- false ->
- Accepted1 ++ [DefaultEnc]
- end,
- [E || E <- Accepted2, lists:member(E, SupportedEncs),
- not lists:member(E, Refused1)].
-
-test() ->
- test_join(),
- test_quote_plus(),
- test_unquote(),
- test_urlencode(),
- test_parse_qs(),
- test_urlsplit_path(),
- test_urlunsplit_path(),
- test_urlsplit(),
- test_urlunsplit(),
- test_path_split(),
- test_guess_mime(),
- test_parse_header(),
- test_shell_quote(),
- test_cmd(),
- test_cmd_string(),
- test_partition(),
- test_safe_relative_path(),
- test_parse_qvalues(),
- test_pick_accepted_encodings(),
- ok.
-
-test_shell_quote() ->
- "\"foo \\$bar\\\"\\`' baz\"" = shell_quote("foo $bar\"`' baz"),
- ok.
-
-test_cmd() ->
- "$bling$ `word`!\n" = cmd(["echo", "$bling$ `word`!"]),
- ok.
-
-test_cmd_string() ->
- "\"echo\" \"\\$bling\\$ \\`word\\`!\"" = cmd_string(["echo", "$bling$ `word`!"]),
- ok.
-
-test_parse_header() ->
- {"multipart/form-data", [{"boundary", "AaB03x"}]} =
- parse_header("multipart/form-data; boundary=AaB03x"),
- ok.
-
-test_guess_mime() ->
- "text/plain" = guess_mime(""),
- "text/plain" = guess_mime(".text"),
- "application/zip" = guess_mime(".zip"),
- "application/zip" = guess_mime("x.zip"),
- "text/html" = guess_mime("x.html"),
- "application/xhtml+xml" = guess_mime("x.xhtml"),
- ok.
-
-test_path_split() ->
- {"", "foo/bar"} = path_split("/foo/bar"),
- {"foo", "bar"} = path_split("foo/bar"),
- {"bar", ""} = path_split("bar"),
- ok.
-
-test_urlsplit() ->
- {"", "", "/foo", "", "bar?baz"} = urlsplit("/foo#bar?baz"),
- {"http", "host:port", "/foo", "", "bar?baz"} =
- urlsplit("http://host:port/foo#bar?baz"),
- ok.
-
-test_urlsplit_path() ->
- {"/foo/bar", "", ""} = urlsplit_path("/foo/bar"),
- {"/foo", "baz", ""} = urlsplit_path("/foo?baz"),
- {"/foo", "", "bar?baz"} = urlsplit_path("/foo#bar?baz"),
- {"/foo", "", "bar?baz#wibble"} = urlsplit_path("/foo#bar?baz#wibble"),
- {"/foo", "bar", "baz"} = urlsplit_path("/foo?bar#baz"),
- {"/foo", "bar?baz", "baz"} = urlsplit_path("/foo?bar?baz#baz"),
- ok.
-
-test_urlunsplit() ->
- "/foo#bar?baz" = urlunsplit({"", "", "/foo", "", "bar?baz"}),
- "http://host:port/foo#bar?baz" =
- urlunsplit({"http", "host:port", "/foo", "", "bar?baz"}),
- ok.
-
-test_urlunsplit_path() ->
- "/foo/bar" = urlunsplit_path({"/foo/bar", "", ""}),
- "/foo?baz" = urlunsplit_path({"/foo", "baz", ""}),
- "/foo#bar?baz" = urlunsplit_path({"/foo", "", "bar?baz"}),
- "/foo#bar?baz#wibble" = urlunsplit_path({"/foo", "", "bar?baz#wibble"}),
- "/foo?bar#baz" = urlunsplit_path({"/foo", "bar", "baz"}),
- "/foo?bar?baz#baz" = urlunsplit_path({"/foo", "bar?baz", "baz"}),
- ok.
-
-test_join() ->
- "foo,bar,baz" = join(["foo", "bar", "baz"], $,),
- "foo,bar,baz" = join(["foo", "bar", "baz"], ","),
- "foo bar" = join([["foo", " bar"]], ","),
- "foo bar,baz" = join([["foo", " bar"], "baz"], ","),
- "foo" = join(["foo"], ","),
- "foobarbaz" = join(["foo", "bar", "baz"], ""),
- ok.
-
-test_quote_plus() ->
- "foo" = quote_plus(foo),
- "1" = quote_plus(1),
- "1.1" = quote_plus(1.1),
- "foo" = quote_plus("foo"),
- "foo+bar" = quote_plus("foo bar"),
- "foo%0A" = quote_plus("foo\n"),
- "foo%0A" = quote_plus("foo\n"),
- "foo%3B%26%3D" = quote_plus("foo;&="),
- ok.
-
-test_unquote() ->
- "foo bar" = unquote("foo+bar"),
- "foo bar" = unquote("foo%20bar"),
- "foo\r\n" = unquote("foo%0D%0A"),
- ok.
-
-test_urlencode() ->
- "foo=bar&baz=wibble+%0D%0A&z=1" = urlencode([{foo, "bar"},
- {"baz", "wibble \r\n"},
- {z, 1}]),
- ok.
-
-test_parse_qs() ->
- [{"foo", "bar"}, {"baz", "wibble \r\n"}, {"z", "1"}] =
- parse_qs("foo=bar&baz=wibble+%0D%0A&z=1"),
- ok.
-
-test_partition() ->
- {"foo", "", ""} = partition("foo", "/"),
- {"foo", "/", "bar"} = partition("foo/bar", "/"),
- {"foo", "/", ""} = partition("foo/", "/"),
- {"", "/", "bar"} = partition("/bar", "/"),
- {"f", "oo/ba", "r"} = partition("foo/bar", "oo/ba"),
- ok.
-
-test_safe_relative_path() ->
- "foo" = safe_relative_path("foo"),
- "foo/" = safe_relative_path("foo/"),
- "foo" = safe_relative_path("foo/bar/.."),
- "bar" = safe_relative_path("foo/../bar"),
- "bar/" = safe_relative_path("foo/../bar/"),
- "" = safe_relative_path("foo/.."),
- "" = safe_relative_path("foo/../"),
- undefined = safe_relative_path("/foo"),
- undefined = safe_relative_path("../foo"),
- undefined = safe_relative_path("foo/../.."),
- undefined = safe_relative_path("foo//"),
- ok.
-
-test_parse_qvalues() ->
- [] = parse_qvalues(""),
- [{"identity", 0.0}] = parse_qvalues("identity;q=0"),
- [{"identity", 0.0}] = parse_qvalues("identity ;q=0"),
- [{"identity", 0.0}] = parse_qvalues(" identity; q =0 "),
- [{"identity", 0.0}] = parse_qvalues("identity ; q = 0"),
- [{"identity", 0.0}] = parse_qvalues("identity ; q= 0.0"),
- [{"gzip", 1.0}, {"deflate", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "gzip,deflate,identity;q=0.0"
- ),
- [{"deflate", 1.0}, {"gzip", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "deflate,gzip,identity;q=0.0"
- ),
- [{"gzip", 1.0}, {"deflate", 1.0}, {"gzip", 1.0}, {"identity", 0.0}] =
- parse_qvalues("gzip,deflate,gzip,identity;q=0"),
- [{"gzip", 1.0}, {"deflate", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "gzip, deflate , identity; q=0.0"
- ),
- [{"gzip", 1.0}, {"deflate", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "gzip; q=1, deflate;q=1.0, identity;q=0.0"
- ),
- [{"gzip", 0.5}, {"deflate", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "gzip; q=0.5, deflate;q=1.0, identity;q=0"
- ),
- [{"gzip", 0.5}, {"deflate", 1.0}, {"identity", 0.0}] = parse_qvalues(
- "gzip; q=0.5, deflate , identity;q=0.0"
- ),
- [{"gzip", 0.5}, {"deflate", 0.8}, {"identity", 0.0}] = parse_qvalues(
- "gzip; q=0.5, deflate;q=0.8, identity;q=0.0"
- ),
- [{"gzip", 0.5}, {"deflate", 1.0}, {"identity", 1.0}] = parse_qvalues(
- "gzip; q=0.5,deflate,identity"
- ),
- [{"gzip", 0.5}, {"deflate", 1.0}, {"identity", 1.0}, {"identity", 1.0}] =
- parse_qvalues("gzip; q=0.5,deflate,identity, identity "),
- invalid_qvalue_string = parse_qvalues("gzip; q=1.1, deflate"),
- invalid_qvalue_string = parse_qvalues("gzip; q=0.5, deflate;q=2"),
- invalid_qvalue_string = parse_qvalues("gzip, deflate;q=AB"),
- invalid_qvalue_string = parse_qvalues("gzip; q=2.1, deflate"),
- ok.
-
-test_pick_accepted_encodings() ->
- ["identity"] = pick_accepted_encodings(
- [],
- ["gzip", "identity"],
- "identity"
- ),
- ["gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 1.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["identity"] = pick_accepted_encodings(
- [{"gzip", 0.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"deflate", 1.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 0.5}, {"deflate", 1.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["identity"] = pick_accepted_encodings(
- [{"gzip", 0.0}, {"deflate", 0.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["gzip"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"deflate", 1.0}, {"identity", 0.0}],
- ["gzip", "identity"],
- "identity"
- ),
- ["gzip", "deflate", "identity"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"deflate", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "deflate"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"deflate", 1.0}, {"identity", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["deflate", "gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 0.2}, {"deflate", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["deflate", "deflate", "gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 0.2}, {"deflate", 1.0}, {"deflate", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["deflate", "gzip", "gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 0.2}, {"deflate", 1.0}, {"gzip", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "deflate", "gzip", "identity"] = pick_accepted_encodings(
- [{"gzip", 0.2}, {"deflate", 0.9}, {"gzip", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- [] = pick_accepted_encodings(
- [{"*", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "deflate", "identity"] = pick_accepted_encodings(
- [{"*", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "deflate", "identity"] = pick_accepted_encodings(
- [{"*", 0.6}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"*", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "deflate"] = pick_accepted_encodings(
- [{"gzip", 1.0}, {"deflate", 0.6}, {"*", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["deflate", "gzip"] = pick_accepted_encodings(
- [{"gzip", 0.5}, {"deflate", 1.0}, {"*", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "identity"] = pick_accepted_encodings(
- [{"deflate", 0.0}, {"*", 1.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ["gzip", "identity"] = pick_accepted_encodings(
- [{"*", 1.0}, {"deflate", 0.0}],
- ["gzip", "deflate", "identity"],
- "identity"
- ),
- ok.