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-rw-r--r--lib/inets/src/http_server/mod_head.erl75
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diff --git a/lib/inets/src/http_server/mod_head.erl b/lib/inets/src/http_server/mod_head.erl
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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+-module(mod_head).
+-export([do/1]).
+
+-include("httpd.hrl").
+
+-define(VMODULE,"HEAD").
+
+%% do
+
+do(Info) ->
+ case Info#mod.method of
+ "HEAD" ->
+ case proplists:get_value(status, Info#mod.data) of
+ %% A status code has been generated!
+ {_StatusCode, _PhraseArgs, _Reason} ->
+ {proceed,Info#mod.data};
+ %% No status code has been generated!
+ _undefined ->
+ case proplists:get_value(response, Info#mod.data) of
+ %% No response has been generated!
+ undefined ->
+ do_head(Info);
+ %% A response has been sent! Nothing to do about it!
+ {already_sent, _StatusCode, _Size} ->
+ {proceed,Info#mod.data};
+ %% A response has been generated!
+ {_StatusCode, _Response} ->
+ {proceed,Info#mod.data}
+ end
+ end;
+ %% Not a HEAD method!
+ _ ->
+ {proceed,Info#mod.data}
+ end.
+
+do_head(Info) ->
+ Path = mod_alias:path(Info#mod.data,
+ Info#mod.config_db,
+ Info#mod.request_uri),
+ Suffix = httpd_util:suffix(Path),
+ %% Does the file exists?
+ case file:read_file_info(Path) of
+ {ok, FileInfo} ->
+ MimeType =
+ httpd_util:lookup_mime_default(Info#mod.config_db,
+ Suffix,"text/plain"),
+ Length = io_lib:write(FileInfo#file_info.size),
+ Head =
+ [{content_type, MimeType},
+ {content_length, Length}, {code,200}],
+ {proceed,[{response, {response, Head, nobody}} | Info#mod.data]};
+ {error, Reason} ->
+ Status = httpd_file:handle_error(Reason, "access", Info, Path),
+ {proceed,
+ [{status, Status} | Info#mod.data]}
+ end.