The R13B03 release.OTP_R13B03

1 files changed, 144 insertions, 0 deletions

diff --git a/lib/inets/src/http_server/httpd_script_env.erl b/lib/inets/src/http_server/httpd_script_env.erl
new file mode 100644
index 0000000000..a742cbef76
--- /dev/null
+++ b/lib/inets/src/http_server/httpd_script_env.erl
@@ -0,0 +1,144 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2005-2009. 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(httpd_script_env).
+
+-export([create_env/3]).
+
+-include("httpd.hrl").
+
+%%%=========================================================================
+%%%  Internal application API 
+%%%=========================================================================
+%%--------------------------------------------------------------------------
+%% create_env(ScriptType, ModData, ScriptElements) -> [{EnvVariable, Value}]
+%%                           
+%%	ScriptType = cgi | esi   
+%%	ModData = #mod{}
+%%      ScriptElements = [{Element, Value}]
+%%      Element = path_info | query_string | entity_body
+%%      Value = term()
+%%      EnvVariable = string() - cgi | atom() - esi
+%%
+%% Description: Creates a list of cgi/esi environment variables and
+%% there values.
+%%--------------------------------------------------------------------------
+create_env(ScriptType, ModData, ScriptElements) ->
+    create_basic_elements(ScriptType, ModData) 
+	++ create_http_header_elements(ScriptType, ModData#mod.parsed_header)
+	++ create_script_elements(ScriptType, ModData, ScriptElements)
+	++ create_mod_interaction_elements(ScriptType, ModData).
+
+%%%========================================================================
+%%% Internal functions
+%%%========================================================================
+create_basic_elements(esi, ModData) ->
+    {_, RemoteAddr} = (ModData#mod.init_data)#init_data.peername,
+    [{server_software, ?SERVER_SOFTWARE},
+     {server_name, (ModData#mod.init_data)#init_data.resolve},
+     {gateway_interface,?GATEWAY_INTERFACE},
+     {server_protocol, ?SERVER_PROTOCOL},
+     {server_port, httpd_util:lookup(ModData#mod.config_db,port,80)},
+     {request_method, ModData#mod.method},
+     {remote_addr, RemoteAddr},
+     {script_name, ModData#mod.request_uri}];
+
+create_basic_elements(cgi, ModData) ->
+    {_, RemoteAddr} = (ModData#mod.init_data)#init_data.peername,
+    [{"SERVER_SOFTWARE",?SERVER_SOFTWARE},
+     {"SERVER_NAME", (ModData#mod.init_data)#init_data.resolve},
+     {"GATEWAY_INTERFACE",?GATEWAY_INTERFACE},
+     {"SERVER_PROTOCOL",?SERVER_PROTOCOL},
+     {"SERVER_PORT",
+      integer_to_list(httpd_util:lookup(
+			ModData#mod.config_db, port, 80))},
+     {"REQUEST_METHOD", ModData#mod.method},
+     {"REMOTE_ADDR", RemoteAddr},
+     {"SCRIPT_NAME", ModData#mod.request_uri}].
+
+create_http_header_elements(ScriptType, Headers) ->
+    create_http_header_elements(ScriptType, Headers, []).
+
+create_http_header_elements(_, [], Acc) ->
+    Acc;
+create_http_header_elements(ScriptType, [{Name, [Value | _] = Values } | 
+					     Headers], Acc) 
+  when is_list(Value) ->
+    NewName = lists:map(fun(X) -> if X == $- -> $_; true -> X end end, Name),
+    Element = http_env_element(ScriptType, NewName, multi_value(Values)),
+    create_http_header_elements(ScriptType, Headers, [Element | Acc]);
+
+create_http_header_elements(ScriptType, [{Name, Value} | Headers], Acc) 
+  when is_list(Value) ->
+    {ok, NewName, _} = inets_regexp:gsub(Name,"-","_"),
+    Element = http_env_element(ScriptType, NewName, Value),
+    create_http_header_elements(ScriptType, Headers, [Element | Acc]).
+
+http_env_element(cgi, VarName, Value)  ->
+    {"HTTP_"++ http_util:to_upper(VarName), Value};
+http_env_element(esi, VarName, Value)  ->
+    {list_to_atom("http_"++ http_util:to_lower(VarName)), Value}.
+
+multi_value([]) ->
+  [];
+multi_value([Value]) ->
+  Value;
+multi_value([Value | Rest]) ->
+  Value ++ ", " ++ multi_value(Rest).
+
+create_script_elements(ScriptType, ModData, ScriptElements) ->
+    lists:flatmap(fun({Element, Data}) ->
+			  create_script_elements(ScriptType,
+						 Element,
+						 Data, ModData)
+		  end, ScriptElements).
+
+create_script_elements(esi, query_string, QueryString, _) ->
+    [{query_string, QueryString}];
+create_script_elements(cgi, query_string, QueryString, _) ->
+    [{"QUERY_STRING", QueryString}];
+create_script_elements(esi, path_info, PathInfo, ModData) ->
+    Aliases = httpd_util:multi_lookup(ModData#mod.config_db, alias),
+    {_,PathTranslated,_} = 
+	mod_alias:real_name(ModData#mod.config_db, PathInfo,
+			    Aliases),
+    [{path_info, PathInfo},
+     {path_translated, PathTranslated}];
+create_script_elements(cgi, path_info, PathInfo, ModData) ->
+    Aliases = httpd_util:multi_lookup(ModData#mod.config_db, alias),
+    {_,PathTranslated,_} = 
+	mod_alias:real_name(ModData#mod.config_db, PathInfo,
+			    Aliases),
+    [{"PATH_INFO", PathInfo},
+     {"PATH_TRANSLATED", PathTranslated}];
+create_script_elements(esi, entity_body, Body, _) ->
+    [{content_length, httpd_util:flatlength(Body)}]; 
+create_script_elements(cgi, entity_body, Body, _) ->
+    [{"CONTENT_LENGTH", httpd_util:flatlength(Body)}]; 
+create_script_elements(_, _, _, _) ->
+    [].
+
+create_mod_interaction_elements(_, ModData)->
+    case proplists:get_value(remote_user, ModData#mod.data) of
+	undefined ->
+	    [];
+	RemoteUser ->
+	    [{remote_user, RemoteUser}]
+    end.