(*
This file is part of libmicrohttpd
Copyright (C) 2010 Christian Grothoff (and other contributing authors)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*)
(**
* @file digest_auth_example.pp (Original: digest_auth_example.c)
* @brief minimal example for how to use digest auth with libmicrohttpd
* @author Amr Ali / Silvio Clécio
*)
program digest_auth_example;
{$mode objfpc}{$H+}
uses
sysutils, BaseUnix, cmem, cutils, libmicrohttpd;
const
PAGE: Pcchar = '<html><head><title>libmicrohttpd demo</title></head><body>Access granted</body></html>';
DENIED: Pcchar = '<html><head><title>libmicrohttpd demo</title></head><body>Access denied</body></html>';
MY_OPAQUE_STR = '11733b200778ce33060f31c9af70a870ba96ddd4';
function ahc_echo(cls: Pointer; connection: PMHD_Connection; url: Pcchar;
method: Pcchar; version: Pcchar; upload_data: Pcchar;
upload_data_size: Psize_t; ptr: PPointer): cint; cdecl;
const
password: Pcchar = 'testpass';
realm: Pcchar = 'test@example.com';
var
response: PMHD_Response;
username: Pcchar;
ret: cint;
signal_stale: cint;
begin
username := MHD_digest_auth_get_username(connection);
if username = nil then
begin
response := MHD_create_response_from_buffer(strlen(DENIED), DENIED,
MHD_RESPMEM_PERSISTENT);
ret := MHD_queue_auth_fail_response(connection, realm, MY_OPAQUE_STR,
response, MHD_NO);
MHD_destroy_response(response);
Exit(ret);
end;
ret := MHD_digest_auth_check(connection, realm, username, password, 300);
Free(username);
if (ret = MHD_INVALID_NONCE) or (ret = MHD_NO) then
begin
response := MHD_create_response_from_buffer(strlen(DENIED), DENIED,
MHD_RESPMEM_PERSISTENT);
if nil = response then
Exit(MHD_NO);
if ret = MHD_INVALID_NONCE then
signal_stale := MHD_YES
else
signal_stale := MHD_NO;
ret := MHD_queue_auth_fail_response(connection, realm, MY_OPAQUE_STR,
response, signal_stale);
MHD_destroy_response(response);
Exit(ret);
end;
response := MHD_create_response_from_buffer(strlen(PAGE), PAGE,
MHD_RESPMEM_PERSISTENT);
ret := MHD_queue_response(connection, MHD_HTTP_OK, response);
MHD_destroy_response(response);
Result := ret;
end;
var
fd: cint;
rnd: array[0..7] of AnsiChar;
len: ssize_t;
off: size_t;
d: PMHD_Daemon;
begin
if argc <> 2 then
begin
WriteLn(argv[0], ' PORT');
Halt(1);
end;
fd := FpOpen('/dev/urandom', O_RDONLY);
if -1 = fd then
begin
WriteLn(stderr, Format('Failed to open `%s'': %s', [
'/dev/urandom', strerror(errno^)]));
Halt(1);
end;
off := 0;
while off < 8 do
begin
len := FpRead(fd, rnd, 8);
if len = -1 then
begin
WriteLn(stderr, Format('Failed to read `%s'': %s', [
'/dev/urandom', strerror(errno^)]));
FpClose(fd);
Halt(1);
end;
off += len;
end;
FpClose(fd);
d := MHD_start_daemon(MHD_USE_THREAD_PER_CONNECTION or MHD_USE_DEBUG,
StrToInt(argv[1]), nil, nil, @ahc_echo, PAGE,
MHD_OPTION_DIGEST_AUTH_RANDOM, SizeOf(rnd), rnd,
MHD_OPTION_NONCE_NC_SIZE, 300,
MHD_OPTION_CONNECTION_TIMEOUT, cuint(120),
MHD_OPTION_END);
if d = nil then
Halt(1);
ReadLn;
MHD_stop_daemon (d);
end.
