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/*
This file is part of TALER
Copyright (C) 2020 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER 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 along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file taler-merchant-httpd_spa.c
* @brief logic to load the single page app (/)
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <taler/taler_util.h>
#include <taler/taler_mhd_lib.h>
#include "taler-merchant-httpd_statics.h"
#include <gnunet/gnunet_mhd_compat.h>
/**
* SPA, compressed.
*/
static struct MHD_Response *zspa;
/**
* SPA, vanilla.
*/
static struct MHD_Response *spa;
MHD_RESULT
TMH_return_spa (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
if ( (MHD_YES ==
TALER_MHD_can_compress (connection)) &&
(NULL != zspa) )
return MHD_queue_response (connection,
MHD_HTTP_OK,
zspa);
return MHD_queue_response (connection,
MHD_HTTP_OK,
spa);
}
int
TMH_spa_init ()
{
char *dn;
int fd;
struct stat sb;
{
char *path;
path = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR);
if (NULL == path)
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
GNUNET_asprintf (&dn,
"%s/merchant/spa/spa.html",
path);
GNUNET_free (path);
}
/* finally open template */
fd = open (dn,
O_RDONLY);
if (-1 == fd)
{
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
"open",
dn);
GNUNET_free (dn);
return GNUNET_SYSERR;
}
if (0 !=
fstat (fd,
&sb))
{
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
"open",
dn);
GNUNET_break (0 == close (fd));
GNUNET_free (dn);
return GNUNET_SYSERR;
}
{
void *in;
ssize_t r;
size_t csize;
in = GNUNET_malloc_large (sb.st_size);
if (NULL == in)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
"malloc");
GNUNET_break (0 == close (fd));
GNUNET_free (dn);
return GNUNET_SYSERR;
}
r = read (fd,
in,
sb.st_size);
if ( (-1 == r) ||
(sb.st_size != (size_t) r) )
{
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
"read",
dn);
GNUNET_free (in);
GNUNET_break (0 == close (fd));
GNUNET_free (dn);
return GNUNET_SYSERR;
}
csize = (size_t) r;
if (MHD_YES ==
TALER_MHD_body_compress (&in,
&csize))
{
zspa = MHD_create_response_from_buffer (csize,
in,
MHD_RESPMEM_MUST_FREE);
if (NULL != zspa)
{
if (MHD_NO ==
MHD_add_response_header (zspa,
MHD_HTTP_HEADER_CONTENT_ENCODING,
"deflate"))
{
GNUNET_break (0);
MHD_destroy_response (zspa);
zspa = NULL;
}
GNUNET_break (MHD_YES ==
MHD_add_response_header (zspa,
MHD_HTTP_HEADER_CONTENT_TYPE,
"text/html"));
}
}
else
{
GNUNET_free (in);
}
}
spa = MHD_create_response_from_fd (sb.st_size,
fd);
if (NULL == spa)
{
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
"open",
dn);
GNUNET_break (0 == close (fd));
GNUNET_free (dn);
if (NULL != zspa)
{
MHD_destroy_response (zspa);
zspa = NULL;
}
return GNUNET_SYSERR;
}
GNUNET_break (MHD_YES ==
MHD_add_response_header (spa,
MHD_HTTP_HEADER_CONTENT_TYPE,
"text/html"));
return GNUNET_OK;
}
/**
* Nicely shut down.
*/
void __attribute__ ((destructor))
get_spa_fini ()
{
if (NULL != spa)
{
MHD_destroy_response (spa);
spa = NULL;
}
if (NULL != zspa)
{
MHD_destroy_response (zspa);
zspa = NULL;
}
}
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