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/******************************************************************
*  $Id: soap-admin.c,v 1.4 2006/05/15 06:45:07 m0gg Exp $
*
* CSOAP Project:  A SOAP client/server library in C
* Copyright (C) 2003  Ferhat Ayaz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA  02111-1307, USA.
* 
* Email: ayaz@jprogrammer.net
******************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <nanohttp/nanohttp-server.h>

#include "soap-router.h"
#include "soap-server.h"
#include "soap-admin.h"

#define SOAP_ADMIN_QUERY_ROUTERS	"routers"
#define SOAP_ADMIN_QUERY_ROUTER		"router"
#define SOAP_ADMIN_QUERY_SERVICES	"services"

static void
_soap_admin_send_title(httpd_conn_t *conn, const char *title)
{
  httpd_send_header(conn, 200, "OK");
  http_output_stream_write_string(conn->out,
   "<html><head><style>");
  http_output_stream_write_string(conn->out,
   ".logo {"
   " color: #005177;"
   " background-color: transparent;"
   " font-family: Calligraphic, arial, sans-serif;"
   " font-size: 36px;"
   "}");
  http_output_stream_write_string(conn->out,
   "</style></head><body><span class=\"logo\">csoap</span> ");
  http_output_stream_write_string(conn->out, title);
  http_output_stream_write_string(conn->out, "<hr />");
}


static void
_soap_admin_list_routers(httpd_conn_t *conn)
{
  SoapRouterNode *node;
  char buffer[1024];

  _soap_admin_send_title(conn, "Available routers");

  http_output_stream_write_string(conn->out, "<ul>");
  for (node = soap_server_get_routers(); node; node = node->next)
  {
    sprintf(buffer, "<li><a href=\"?" SOAP_ADMIN_QUERY_ROUTER "=%s\">%s</a> - <a href=\"%s\">[Service Description]</a></li>",
	    node->context, node->context, node->context);
    http_output_stream_write_string(conn->out, buffer);
  }
  http_output_stream_write_string(conn->out, "</ul>");
  
  http_output_stream_write_string(conn->out, "</body></html>");
}


static void
_soap_admin_list_services(httpd_conn_t *conn, const char *routername)
{
  SoapRouter *router;
  SoapServiceNode *node;
  char buffer[1024];
  
  sprintf(buffer, "Listing Services for Router <b>%s</b>", routername);
  _soap_admin_send_title(conn, buffer);

  router = soap_server_find_router(routername);
  if (!router)
  {
    http_output_stream_write_string(conn->out, "Router not found!");
    http_output_stream_write_string(conn->out, "</body></html>");
    return;
  }

  node = router->service_head;

  http_output_stream_write_string(conn->out, "<ul>");
  while (node)
  {
    sprintf(buffer, "<li> [%s] (%s) </li>",
	    node->service->urn,
	    node->service->method);
    http_output_stream_write_string(conn->out, buffer);
    node = node->next;
  }
  http_output_stream_write_string(conn->out, "</ul>");

  http_output_stream_write_string(conn->out, "</body></html>");
}


static void
_soap_admin_handle_get(httpd_conn_t * conn, hrequest_t * req)
{
  char *param;

  if ((param = hpairnode_get_ignore_case(req->query, SOAP_ADMIN_QUERY_ROUTERS)))
  {
    _soap_admin_list_routers(conn);
  }
  else if ((param = hpairnode_get_ignore_case(req->query, SOAP_ADMIN_QUERY_ROUTER)))
  {
    _soap_admin_list_services(conn, param);
  }
  else
  {
    _soap_admin_send_title(conn, "Welcome to the admin site");

    http_output_stream_write_string(conn->out, "<ul>");
    http_output_stream_write_string(conn->out,
     "<li><a href=\"?" SOAP_ADMIN_QUERY_ROUTERS "\">Routers</a></li>");
    http_output_stream_write_string(conn->out, "</ul>");

    http_output_stream_write_string(conn->out, "</body></html>");
  }
}


static void
_soap_admin_entry(httpd_conn_t * conn, hrequest_t * req)
{
  if (req->method == HTTP_REQUEST_GET)
  {
    _soap_admin_handle_get(conn, req);
  }
  else
  {
    httpd_send_header(conn, 200, "OK");
    http_output_stream_write_string(conn->out,
              "<html>"
                  "<head>"
		  "</head>"
		  "<body>"
                      "<h1>Sorry!</h1>"
                      "<hr />"
                      "<div>POST Service is not implemented now. Use your browser</div>"
                  "</body>"
              "</html>");
  }
}


herror_t
soap_admin_init_args(int argc, char **argv)
{

  int i;

  for (i=0; i<argc; i++) {

    if (!strcmp(argv[i], CSOAP_ENABLE_ADMIN)) {

      httpd_register("/csoap", _soap_admin_entry);
      break;
    }
  }

  return H_OK;
}