diff options
Diffstat (limited to 'src/cowboy_dispatcher.erl')
| -rw-r--r-- | src/cowboy_dispatcher.erl | 84 |
1 files changed, 61 insertions, 23 deletions
diff --git a/src/cowboy_dispatcher.erl b/src/cowboy_dispatcher.erl index c006185..67a7bf6 100644 --- a/src/cowboy_dispatcher.erl +++ b/src/cowboy_dispatcher.erl @@ -62,51 +62,59 @@ do_split_path(RawPath, Separator) -> -spec match(Host::path_tokens(), Path::path_tokens(), Dispatch::dispatch_rules()) - -> {ok, Handler::module(), Opts::term(), Binds::bindings()} + -> {ok, Handler::module(), Opts::term(), Binds::bindings(), + HostInfo::undefined | path_tokens(), + PathInfo::undefined | path_tokens()} | {error, notfound, host} | {error, notfound, path}. match(_Host, _Path, []) -> {error, notfound, host}; match(_Host, Path, [{'_', PathMatchs}|_Tail]) -> - match_path(Path, PathMatchs, []); + match_path(Path, PathMatchs, [], undefined); match(Host, Path, [{HostMatch, PathMatchs}|Tail]) -> case try_match(host, Host, HostMatch) of false -> match(Host, Path, Tail); - {true, HostBinds} -> - match_path(Path, PathMatchs, HostBinds) + {true, HostBinds, undefined} -> + match_path(Path, PathMatchs, HostBinds, undefined); + {true, HostBinds, HostInfo} -> + match_path(Path, PathMatchs, HostBinds, lists:reverse(HostInfo)) end. -spec match_path(Path::path_tokens(), list({Path::match_rule(), - Handler::module(), Opts::term()}), HostBinds::bindings()) - -> {ok, Handler::module(), Opts::term(), Binds::bindings()} + Handler::module(), Opts::term()}), HostBinds::bindings(), + HostInfo::undefined | path_tokens()) + -> {ok, Handler::module(), Opts::term(), Binds::bindings(), + HostInfo::undefined | path_tokens(), + PathInfo::undefined | path_tokens()} | {error, notfound, path}. -match_path(_Path, [], _HostBinds) -> +match_path(_Path, [], _HostBinds, _HostInfo) -> {error, notfound, path}; -match_path(_Path, [{'_', Handler, Opts}|_Tail], HostBinds) -> - {ok, Handler, Opts, HostBinds}; -match_path('*', [{'*', Handler, Opts}|_Tail], HostBinds) -> - {ok, Handler, Opts, HostBinds}; -match_path(Path, [{PathMatch, Handler, Opts}|Tail], HostBinds) -> +match_path(_Path, [{'_', Handler, Opts}|_Tail], HostBinds, HostInfo) -> + {ok, Handler, Opts, HostBinds, HostInfo, undefined}; +match_path('*', [{'*', Handler, Opts}|_Tail], HostBinds, HostInfo) -> + {ok, Handler, Opts, HostBinds, HostInfo, undefined}; +match_path(Path, [{PathMatch, Handler, Opts}|Tail], HostBinds, HostInfo) -> case try_match(path, Path, PathMatch) of false -> - match_path(Path, Tail, HostBinds); - {true, PathBinds} -> - {ok, Handler, Opts, HostBinds ++ PathBinds} + match_path(Path, Tail, HostBinds, HostInfo); + {true, PathBinds, PathInfo} -> + {ok, Handler, Opts, HostBinds ++ PathBinds, HostInfo, PathInfo} end. %% Internal. -spec try_match(Type::host | path, List::path_tokens(), Match::match_rule()) - -> {true, Binds::bindings()} | false. -try_match(_Type, List, Match) when length(List) =/= length(Match) -> - false; + -> {true, Binds::bindings(), ListInfo::undefined | path_tokens()} | false. try_match(host, List, Match) -> list_match(lists:reverse(List), lists:reverse(Match), []); try_match(path, List, Match) -> list_match(List, Match, []). -spec list_match(List::path_tokens(), Match::match_rule(), Binds::bindings()) - -> {true, Binds::bindings()} | false. + -> {true, Binds::bindings(), ListInfo::undefined | path_tokens()} | false. +%% Atom '...' matches any trailing path, stop right now. +list_match(List, ['...'], Binds) -> + {true, Binds, List}; %% Atom '_' matches anything, continue. list_match([_E|Tail], ['_'|TailMatch], Binds) -> list_match(Tail, TailMatch, Binds); @@ -116,12 +124,12 @@ list_match([E|Tail], [E|TailMatch], Binds) -> %% Bind E to the variable name V and continue. list_match([E|Tail], [V|TailMatch], Binds) when is_atom(V) -> list_match(Tail, TailMatch, [{V, E}|Binds]); -%% Values don't match, stop. -list_match([_E|_Tail], [_F|_TailMatch], _Binds) -> - false; %% Match complete. list_match([], [], Binds) -> - {true, Binds}. + {true, Binds, undefined}; +%% Values don't match, stop. +list_match(_List, _Match, _Binds) -> + false. %% Tests. @@ -229,6 +237,36 @@ match_test_() -> [{var, <<"fr">>}, {var, <<"987">>}]}} ], [{lists:flatten(io_lib:format("~p, ~p", [H, P])), fun() -> + {ok, Handler, Opts, Binds, undefined, undefined} = match(H, P, Dispatch) + end} || {H, P, {ok, Handler, Opts, Binds}} <- Tests]. + +match_info_test_() -> + Dispatch = [ + {[<<"www">>, <<"dev-extend">>, <<"eu">>], [ + {[<<"pathinfo">>, <<"is">>, <<"next">>, '...'], match_path, []} + ]}, + {['...', <<"dev-extend">>, <<"eu">>], [ + {'_', match_any, []} + ]} + ], + Tests = [ + {[<<"dev-extend">>, <<"eu">>], [], + {ok, match_any, [], [], [], undefined}}, + {[<<"bugs">>, <<"dev-extend">>, <<"eu">>], [], + {ok, match_any, [], [], [<<"bugs">>], undefined}}, + {[<<"cowboy">>, <<"bugs">>, <<"dev-extend">>, <<"eu">>], [], + {ok, match_any, [], [], [<<"cowboy">>, <<"bugs">>], undefined}}, + {[<<"www">>, <<"dev-extend">>, <<"eu">>], + [<<"pathinfo">>, <<"is">>, <<"next">>], + {ok, match_path, [], [], undefined, []}}, + {[<<"www">>, <<"dev-extend">>, <<"eu">>], + [<<"pathinfo">>, <<"is">>, <<"next">>, <<"path_info">>], + {ok, match_path, [], [], undefined, [<<"path_info">>]}}, + {[<<"www">>, <<"dev-extend">>, <<"eu">>], + [<<"pathinfo">>, <<"is">>, <<"next">>, <<"foo">>, <<"bar">>], + {ok, match_path, [], [], undefined, [<<"foo">>, <<"bar">>]}} + ], + [{lists:flatten(io_lib:format("~p, ~p", [H, P])), fun() -> R = match(H, P, Dispatch) end} || {H, P, R} <- Tests]. |