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authorIngela Anderton Andin <[email protected]>2016-01-28 15:46:08 +0100
committerIngela Anderton Andin <[email protected]>2016-01-28 16:13:58 +0100
commit03abb57fdcfe2e95f0f15b1bdb043d54662876c8 (patch)
treeffa4ac4da8011439d1bbcf4c1f512944ea48aabf /lib/inets/src/http_server/mod_alias.erl
parentba8d87765f490d99c9768dd116bb1a2e75354cc6 (diff)
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inets: Traverse all aliases looking for the longest match
Before the first matching alias was returned, but we want the longest one to be returned.
Diffstat (limited to 'lib/inets/src/http_server/mod_alias.erl')
-rw-r--r--lib/inets/src/http_server/mod_alias.erl44
1 files changed, 32 insertions, 12 deletions
diff --git a/lib/inets/src/http_server/mod_alias.erl b/lib/inets/src/http_server/mod_alias.erl
index 77045259d3..727f6e0ce3 100644
--- a/lib/inets/src/http_server/mod_alias.erl
+++ b/lib/inets/src/http_server/mod_alias.erl
@@ -113,32 +113,52 @@ real_name(ConfigDB, RequestURI, []) ->
httpd_util:split_path(default_index(ConfigDB, RealName)),
{ShortPath, Path, AfterPath};
-real_name(ConfigDB, RequestURI, [{MP,Replacement}|Rest])
+real_name(ConfigDB, RequestURI, [{MP,Replacement}| _] = Aliases)
when element(1, MP) =:= re_pattern ->
- case re:run(RequestURI, MP, [{capture,[]}]) of
- match ->
+ case longest_match(Aliases, RequestURI) of
+ {match, {MP, Replacement}} ->
NewURI = re:replace(RequestURI, MP, Replacement, [{return,list}]),
{ShortPath,_} = httpd_util:split_path(NewURI),
{Path,AfterPath} =
httpd_util:split_path(default_index(ConfigDB, NewURI)),
{ShortPath, Path, AfterPath};
nomatch ->
- real_name(ConfigDB, RequestURI, Rest)
+ real_name(ConfigDB, RequestURI, [])
end;
-real_name(ConfigDB, RequestURI, [{FakeName,RealName}|Rest]) ->
- case inets_regexp:match(RequestURI, "^" ++ FakeName) of
- {match, _, _} ->
- {ok, ActualName, _} = inets_regexp:sub(RequestURI,
- "^" ++ FakeName, RealName),
+real_name(ConfigDB, RequestURI, [{_,_}|_] = Aliases) ->
+ case longest_match(Aliases, RequestURI) of
+ {match, {FakeName, RealName}} ->
+ ActualName = re:replace(RequestURI,
+ "^" ++ FakeName, RealName, [{return,list}]),
{ShortPath, _AfterPath} = httpd_util:split_path(ActualName),
{Path, AfterPath} =
- httpd_util:split_path(default_index(ConfigDB, ActualName)),
+ httpd_util:split_path(default_index(ConfigDB, ActualName)),
{ShortPath, Path, AfterPath};
- nomatch ->
- real_name(ConfigDB, RequestURI, Rest)
+ nomatch ->
+ real_name(ConfigDB, RequestURI, [])
end.
+longest_match(Aliases, RequestURI) ->
+ longest_match(Aliases, RequestURI, _LongestNo = 0, _LongestAlias = undefined).
+
+longest_match([{FakeName, RealName} | Rest], RequestURI, LongestNo, LongestAlias) ->
+ case re:run(RequestURI, "^" ++ FakeName, [{capture, first}]) of
+ {match, [{_, Length}]} ->
+ if
+ Length > LongestNo ->
+ longest_match(Rest, RequestURI, Length, {FakeName, RealName});
+ true ->
+ longest_match(Rest, RequestURI, LongestNo, LongestAlias)
+ end;
+ nomatch ->
+ longest_match(Rest, RequestURI, LongestNo, LongestAlias)
+ end;
+longest_match([], _RequestURI, 0, _LongestAlias) ->
+ nomatch;
+longest_match([], _RequestURI, _LongestNo, LongestAlias) ->
+ {match, LongestAlias}.
+
%% real_script_name
real_script_name(_ConfigDB, _RequestURI, []) ->