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470 | ------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2006-2016, AdaCore --
-- --
-- This is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This software is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- distributed with this software; see file COPYING3. If not, go --
-- to http://www.gnu.org/licenses for a complete copy of the license. --
------------------------------------------------------------------------------
with Ada.Strings.Fixed;
with Ada.Strings.Maps;
with Ada.Strings.Unbounded;
with Ada.Text_IO;
with GNAT.OS_Lib;
with AWS.MIME;
with AWS.Net.Poll_Events;
with AWS.Translator;
package body USock is
use Ada;
use Ada.Strings.Unbounded;
Chunk_Size : constant := 10;
Done : Boolean := False;
type UString is array (Positive range <>) of Unbounded_String;
type U_Set is new AWS.Net.Poll_Events.Set with null record;
overriding procedure Wait
(Container : in out U_Set; Timeout : Duration; Count : out Natural);
overriding function Status
(Container : U_Set; Index : Positive) return Net.Event_Set;
function "+" (Str : String) return Unbounded_String
renames To_Unbounded_String;
CRLF : constant String := ASCII.CR & ASCII.LF;
Message : UString :=
(+"GET /toto HTTP/1.0" & CRLF,
+"Content-length: 1" & CRLF,
+"" & CRLF,
+"a");
M_Index : Natural := 0;
protected Data is
entry Ready;
procedure Shutdown;
private
N_Data : Natural := 1;
Stop : Boolean := False;
end Data;
----------
-- Data --
----------
protected body Data is
-----------
-- Ready --
-----------
entry Ready when N_Data > 0 or else Stop is
begin
if N_Data > 0 then
N_Data := N_Data - 1;
end if;
end Ready;
----------
-- Stop --
----------
procedure Shutdown is
begin
Stop := True;
end Shutdown;
end Data;
------------
-- Socket --
------------
function Socket (Security : Boolean) return Net.Socket_Type'Class is
S : U_Socket;
begin
return S;
end Socket;
----------
-- Bind --
----------
overriding procedure Bind
(Socket : in out U_Socket;
Port : Natural;
Host : String := "";
Reuse_Address : Boolean := False;
IPv6_Only : Boolean := False;
Family : Net.Family_Type := Net.Family_Unspec)
is
pragma Unreferenced
(Socket, Port, Host, Reuse_Address, IPv6_Only, Family);
begin
Socket.Server := True;
Text_IO.Put_Line ("Bind on U_Socket");
end Bind;
------------
-- Listen --
------------
overriding procedure Listen
(Socket : U_Socket;
Queue_Size : Positive := 5)
is
pragma Unreferenced (Socket, Queue_Size);
begin
Text_IO.Put_Line ("Listen on U_Socket");
end Listen;
-------------------
-- Accept_Socket --
-------------------
overriding procedure Accept_Socket
(Socket : Net.Socket_Type'Class;
New_Socket : in out U_Socket)
is
pragma Unreferenced (Socket, New_Socket);
begin
delay 0.1;
Data.Ready;
if Done then
-- We are done, the server will be shutdown, wait a bit to be sure
-- the shutdown process has started.
delay 1.0;
raise Net.Socket_Error;
end if;
Text_IO.Put_Line ("Accept_Socket on U_Socket");
end Accept_Socket;
-------------
-- Connect --
-------------
overriding procedure Connect
(Socket : in out U_Socket;
Host : String;
Port : Positive;
Wait : Boolean := True;
Family : Net.Family_Type := Net.Family_Unspec)
is
pragma Unreferenced (Socket, Host, Port, Wait, Family);
begin
Text_IO.Put_Line ("Connect on U_Socket");
end Connect;
------------------
-- Is_Listening --
------------------
overriding function Is_Listening (Socket : U_Socket) return Boolean is
begin
return Socket.Server;
end Is_Listening;
--------------
-- Shutdown --
--------------
overriding procedure Shutdown
(Socket : U_Socket;
How : Net.Shutmode_Type := Net.Shut_Read_Write)
is
pragma Unreferenced (Socket);
begin
Text_IO.Put_Line ("Shutdown on U_Socket");
Data.Shutdown;
end Shutdown;
----------
-- Send --
----------
overriding procedure Send
(Socket : U_Socket;
Data : Stream_Element_Array;
Last : out Stream_Element_Offset)
is
pragma Unreferenced (Socket);
begin
Text_IO.Put_Line ("Got : --");
declare
Letter_Number : constant Strings.Maps.Character_Set :=
Strings.Maps.To_Set
("0123456789abcdefghijklmnopqrstuvwxyz"
& "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
D : String := Translator.To_String (Data);
First, Last : Natural := 0;
begin
First := Strings.Fixed.Index (D, "Date");
Last := Strings.Fixed.Index (D, "GMT");
for K in First + 4 .. Last + 2 loop
if Strings.Maps.Is_In (D (K), Letter_Number) then
D (K) := 'x';
end if;
end loop;
First := Strings.Fixed.Index (D, "Server) v");
Last := Strings.Fixed.Index (D (First .. D'Last), (1 => ASCII.CR));
D (First + 9 .. First + 11) := "x.y";
Text_IO.Put (D (D'First .. First + 11));
Text_IO.Put_Line (D (Last .. D'Last));
end;
Text_IO.Put_Line ("--");
Last := Data'Last;
end Send;
---------------
-- To_FD_Set --
---------------
function To_FD_Set
(Socket : U_Socket;
Events : Net.Wait_Event_Set;
Size : Positive := 1) return Net.FD_Set'Class
is
Result : U_Set (Size);
begin
Add (Result, Get_FD (Socket), Events);
return Result;
end To_FD_Set;
----------
-- Wait --
----------
procedure Wait
(Container : in out U_Set; Timeout : Duration; Count : out Natural)
is
pragma Unreferenced (Container, Timeout);
begin
Count := 1;
end Wait;
------------
-- Status --
------------
function Status
(Container : U_Set; Index : Positive) return Net.Event_Set
is
pragma Unreferenced (Container);
begin
return (Net.Input => Done or Index /= 1,
-- 1 is the signal socket index inside of
-- Net.Acceptors.Acceptor_Type.
Net.Output => True,
Net.Error => Done);
end Status;
-------------
-- Receive --
-------------
overriding procedure Receive
(Socket : U_Socket;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset)
is
pragma Unreferenced (Socket);
begin
Text_IO.Put_Line ("Receive on U_Socket");
if Done then
Last := Data'First - 1;
Text_IO.Put_Line ("Too many time on Receive, exit now!");
GNAT.OS_Lib.OS_Exit (1);
else
M_Index := M_Index + 1;
if M_Index > Message'Last then
Text_IO.Put_Line ("Too many time on Receive, exit now!");
GNAT.OS_Lib.OS_Exit (1);
end if;
declare
M : constant String := To_String (Message (M_Index));
begin
Last := Data'First + M'Length - 1;
Data (Data'First .. Last) :=
Translator.To_Stream_Element_Array (M);
if M_Index = Message'Last then
Done := True;
end if;
end;
end if;
end Receive;
-------------
-- Pending --
-------------
overriding function Pending
(Socket : U_Socket) return Stream_Element_Count
is
pragma Unreferenced (Socket);
begin
if Done then
return 0;
else
return Chunk_Size;
end if;
end Pending;
------------
-- Get_FD --
------------
overriding function Get_FD (Socket : U_Socket) return Integer is
begin
return 1;
end Get_FD;
---------------
-- Peer_Addr --
---------------
overriding function Peer_Addr (Socket : U_Socket) return String is
pragma Unreferenced (Socket);
begin
-- Have to be 127.0.0.1 to cheat Socket_Pair
return "127.0.0.1";
end Peer_Addr;
---------------
-- Peer_Port --
---------------
overriding function Peer_Port (Socket : U_Socket) return Positive is
pragma Unreferenced (Socket);
begin
return 1;
end Peer_Port;
--------------
-- Get_Addr --
--------------
overriding function Get_Addr (Socket : U_Socket) return String is
begin
return "here";
end Get_Addr;
--------------
-- Get_Port --
--------------
overriding function Get_Port (Socket : U_Socket) return Positive is
pragma Unreferenced (Socket);
begin
return 1;
end Get_Port;
--------------------------
-- Set_Send_Buffer_Size --
--------------------------
overriding procedure Set_Send_Buffer_Size
(Socket : U_Socket;
Size : Natural)
is
pragma Unreferenced (Socket, Size);
begin
raise Constraint_Error;
end Set_Send_Buffer_Size;
-----------------------------
-- Set_Receive_Buffer_Size --
-----------------------------
overriding procedure Set_Receive_Buffer_Size
(Socket : U_Socket;
Size : Natural)
is
pragma Unreferenced (Socket, Size);
begin
raise Constraint_Error;
end Set_Receive_Buffer_Size;
--------------------------
-- Get_Send_Buffer_Size --
--------------------------
overriding function Get_Send_Buffer_Size
(Socket : U_Socket) return Natural
is
pragma Unreferenced (Socket);
begin
raise Constraint_Error;
return 0;
end Get_Send_Buffer_Size;
-----------------------------
-- Get_Receive_Buffer_Size --
-----------------------------
overriding function Get_Receive_Buffer_Size
(Socket : U_Socket) return Natural
is
pragma Unreferenced (Socket);
begin
raise Constraint_Error;
return 0;
end Get_Receive_Buffer_Size;
-----------
-- Errno --
-----------
overriding function Errno (Socket : U_Socket) return Integer is
pragma Unreferenced (Socket);
begin
return 0;
end Errno;
--------
-- CB --
--------
function CB (Request : AWS.Status.Data) return Response.Data is
begin
Text_IO.Put_Line ("Callback... " & AWS.Status.URI (Request));
return Response.Build (MIME.Text_HTML, "response from U_Socket");
end CB;
end USock;
|