[inets/httpc] Add function to retreive current options

Add function to retreive current options, httpc:get_options/1,2.

OTP-9979

2 files changed, 104 insertions, 3 deletions

diff --git a/lib/inets/src/http_client/httpc.erl b/lib/inets/src/http_client/httpc.erl
index ae87ceed93..5ed2d98ba6 100644
--- a/lib/inets/src/http_client/httpc.erl
+++ b/lib/inets/src/http_client/httpc.erl
@@ -31,8 +31,10 @@
 -export([
 	 request/1, request/2, request/4, request/5,
 	 cancel_request/1, cancel_request/2,
-	 set_option/2, set_option/3,
+	 set_option/2,  set_option/3,
 	 set_options/1, set_options/2,
+	 get_option/1,  get_option/2,
+	 get_options/1, get_options/2,
 	 store_cookies/2, store_cookies/3, 
 	 cookie_header/1, cookie_header/2, cookie_header/3, 
 	 which_cookies/0, which_cookies/1, 
@@ -230,7 +232,7 @@ cancel_request(RequestId, Profile)
 set_options(Options) ->
     set_options(Options, default_profile()).
 set_options(Options, Profile) when is_atom(Profile) orelse is_pid(Profile) ->
-    ?hcrt("set cookies", [{options, Options}, {profile, Profile}]),
+    ?hcrt("set options", [{options, Options}, {profile, Profile}]),
     case validate_options(Options) of
 	{ok, Opts} ->
 	    try 
@@ -253,6 +255,58 @@ set_option(Key, Value, Profile) ->
 
 
 %%--------------------------------------------------------------------------
+%% get_options(OptionItems) -> {ok, Values} | {error, Reason}
+%% get_options(OptionItems, Profile) -> {ok, Values} | {error, Reason}
+%%   OptionItems   - all | [option_item()]
+%%   option_item() - proxy | pipeline_timeout | max_pipeline_length | 
+%%                   keep_alive_timeout | max_keep_alive_length | 
+%%                   max_sessions | verbose | 
+%%                   cookies | ipfamily | ip | port | socket_opts
+%%   Profile       - atom()
+%%   Values - [{option_item(), term()}]
+%%   Reason - term()
+%% Description: Retrieves the current options. 
+%%-------------------------------------------------------------------------
+get_options() ->
+    record_info(fields, options).
+
+get_options(Options) ->
+    get_options(Options, default_profile()).
+
+get_options(all = _Options, Profile) ->
+    get_options(get_options(), Profile);
+get_options(Options, Profile) 
+  when (is_list(Options) andalso 
+	(is_atom(Profile) orelse is_pid(Profile))) ->
+    ?hcrt("get options", [{options, Options}, {profile, Profile}]),
+    case Options -- get_options() of
+	[] ->
+	    try 
+		begin
+		    {ok, httpc_manager:get_options(Options, 
+						   profile_name(Profile))}
+		end
+	    catch
+		exit:{noproc, _} ->
+		    {error, inets_not_started}
+	    end;
+	InvalidGetOptions ->
+	    {error, {invalid_options, InvalidGetOptions}}
+    end.
+
+get_option(Key) ->
+    get_option(Key, default_profile()).
+
+get_option(Key, Profile) ->
+    case get_options([Key], Profile) of
+	{ok, [{Key, Value}]} ->
+	    {ok, Value};
+	Error ->
+	    Error
+    end.
+
+
+%%--------------------------------------------------------------------------
 %% store_cookies(SetCookieHeaders, Url [, Profile]) -> ok | {error, reason} 
 %%   
 %%                                 
@@ -347,7 +401,7 @@ which_cookies(Profile) ->
 %% info() -> list()
 %% info(Profile) -> list()
 %%               
-%% Description: Debug function, retreive info about the profile
+%% Description: Debug function, retrieve info about the profile
 %%-------------------------------------------------------------------------
 info() ->
     info(default_profile()).
diff --git a/lib/inets/src/http_client/httpc_manager.erl b/lib/inets/src/http_client/httpc_manager.erl
index 453081da21..33b5dfe046 100644
--- a/lib/inets/src/http_client/httpc_manager.erl
+++ b/lib/inets/src/http_client/httpc_manager.erl
@@ -37,6 +37,7 @@
 	 update_session/4, 
 	 delete_session/2, 
 	 set_options/2, 
+	 get_options/2, 
 	 store_cookies/3,
 	 which_cookies/1, which_cookies/2, which_cookies/3, 
 	 reset_cookies/1, 
@@ -250,6 +251,21 @@ set_options(Options, ProfileName) ->
 
 
 %%--------------------------------------------------------------------
+%% Function: get_options(OptionItems, ProfileName) -> Values
+%%
+%%	OptionItems = [OptionItem]
+%%	OptionItem = Any or all fields of the current #options{} record 
+%%      Values = [{OptionItem, Value}]
+%%      Value = term()
+%% 
+%% Description: Gets the specified options used by the client.
+%%--------------------------------------------------------------------
+
+get_options(Options, ProfileName) ->
+    call(ProfileName, {get_options, Options}).
+
+
+%%--------------------------------------------------------------------
 %% Function: store_cookies(Cookies, Address, ProfileName) -> ok
 %%
 %%	Cookies = [Cookie]
@@ -439,6 +455,12 @@ handle_call({which_cookies, Url, Options}, _,
 	    {reply, ERROR, State}
     end;
 
+handle_call({get_options, OptionItems}, _, #state{options = Options} = State) ->
+    ?hcrv("get options", [{option_items, OptionItems}]),
+    Reply = [{OptionItem, get_option(OptionItem, Options)} || OptionItem <- 
+								  OptionItems], 
+    {reply, Reply, State};
+
 handle_call(info, _, State) ->
     ?hcrv("info", []),
     Info = get_manager_info(State), 
@@ -883,6 +905,31 @@ cast(ProfileName, Msg) ->
    gen_server:cast(ProfileName, Msg).
 
 
+get_option(proxy, #options{proxy = Proxy}) ->
+    Proxy;
+get_option(pipeline_timeout, #options{pipeline_timeout = Timeout}) ->
+    Timeout;
+get_option(max_pipeline_length, #options{max_pipeline_length = Length}) ->
+    Length;
+get_option(keep_alive_timeout, #options{keep_alive_timeout = Timeout}) ->
+    Timeout;
+get_option(max_keep_alive_length, #options{max_keep_alive_length = Length}) ->
+    Length;
+get_option(max_sessions, #options{max_sessions = MaxSessions}) ->
+    MaxSessions;
+get_option(cookies, #options{cookies = Cookies}) ->
+    Cookies;
+get_option(verbose, #options{verbose = Verbose}) ->
+    Verbose;
+get_option(ipfamily, #options{ipfamily = IpFamily}) ->
+    IpFamily;
+get_option(ip, #options{ip = IP}) ->
+    IP;
+get_option(port, #options{port = Port}) ->
+    Port;
+get_option(socket_opts, #options{socket_opts = SocketOpts}) ->
+    SocketOpts.
+
 get_proxy(Opts, #options{proxy = Default}) ->
     proplists:get_value(proxy, Opts, Default).