From 498d5c85681ddfea577377b8e10051fb445ac0c2 Mon Sep 17 00:00:00 2001 From: Adam Kocoloski Date: Wed, 11 Aug 2010 15:52:06 -0400 Subject: move mochiweb to rebar layout --- apps/mochiweb/src/mochiweb_util.erl | 859 ++++++++++++++++++++++++++++++++++++ 1 file changed, 859 insertions(+) create mode 100644 apps/mochiweb/src/mochiweb_util.erl (limited to 'apps/mochiweb/src/mochiweb_util.erl') diff --git a/apps/mochiweb/src/mochiweb_util.erl b/apps/mochiweb/src/mochiweb_util.erl new file mode 100644 index 00000000..d8fc89d5 --- /dev/null +++ b/apps/mochiweb/src/mochiweb_util.erl @@ -0,0 +1,859 @@ +%% @author Bob Ippolito +%% @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) -> + <> = <>, + 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. -- cgit v1.2.3