plugins/portal.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdlib.h>
  28
  29 #include <glib.h>
  30
  31 #define CONNMAN_API_SUBJECT_TO_CHANGE
  32 #include <connman/plugin.h>
  33 #include <connman/location.h>
  34 #include <connman/proxy.h>
  35 #include <connman/log.h>
  36
  37 #include "gweb/gweb.h"
  38
  39 #define STATUS_URL  "http://www.connman.net/online/status.html"
  40
  41 struct server_data {
  42         unsigned int token;
  43         GWeb *web;
  44         guint request_id;
  45 };
  46
  47 static void web_debug(const char *str, void *data)
  48 {
  49         connman_info("%s: %s\n", (const char *) data, str);
  50 }
  51
  52 static gboolean web_result(GWebResult *result, gpointer user_data)
  53 {
  54         struct connman_location *location = user_data;
  55         struct server_data *data = connman_location_get_data(location);
  56         const char *str;
  57         guint16 status;
  58
  59         if (data->request_id == 0)
  60                 return FALSE;
  61
  62         status = g_web_result_get_status(result);
  63
  64         /* If status header is not available, it is a portal */
  65         if (g_web_result_get_header(result, "X-ConnMan-Status", &str) == FALSE)
  66                 status = 302;
  67
  68         DBG("status %u", status);
  69
  70         switch (status) {
  71         case 200:
  72                 if (g_web_result_get_header(result, "X-ConnMan-Client-IP",
  73                                                                 &str) == TRUE)
  74                         connman_info("Client-IP: %s", str);
  75
  76                 if (g_web_result_get_header(result, "X-ConnMan-Client-Country",
  77                                                                 &str) == TRUE)
  78                         connman_info("Client-Country: %s", str);
  79
  80                 connman_location_report_result(location,
  81                                         CONNMAN_LOCATION_RESULT_ONLINE);
  82                 break;
  83         case 302:
  84                 connman_location_report_result(location,
  85                                         CONNMAN_LOCATION_RESULT_PORTAL);
  86                 break;
  87         default:
  88                 connman_location_report_result(location,
  89                                         CONNMAN_LOCATION_RESULT_UNKNOWN);
  90                 break;
  91         }
  92
  93         data->request_id = 0;
  94
  95         return FALSE;
  96 }
  97
  98 static void proxy_callback(const char *proxy, void *user_data)
  99 {
 100         struct connman_location *location = user_data;
 101         struct server_data *data = connman_location_get_data(location);
 102
 103         DBG("proxy %s", proxy);
 104
 105         if (proxy == NULL)
 106                 proxy = getenv("http_proxy");
 107
 108         if (data != NULL) {
 109                 if (proxy != NULL && g_strcmp0(proxy, "DIRECT") != 0)
 110                         g_web_set_proxy(data->web, proxy);
 111
 112                 data->request_id = g_web_request_get(data->web, STATUS_URL,
 113                                                         web_result, location);
 114
 115                 data->token = 0;
 116         }
 117
 118         connman_location_unref(location);
 119 }
 120
 121 static int location_detect(struct connman_location *location)
 122 {
 123         struct server_data *data;
 124         struct connman_service *service;
 125         enum connman_service_type service_type;
 126         char *interface;
 127         int err;
 128
 129         DBG("location %p", location);
 130
 131         service_type = connman_location_get_type(location);
 132
 133         switch (service_type) {
 134         case CONNMAN_SERVICE_TYPE_ETHERNET:
 135         case CONNMAN_SERVICE_TYPE_WIFI:
 136         case CONNMAN_SERVICE_TYPE_WIMAX:
 137         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 138         case CONNMAN_SERVICE_TYPE_CELLULAR:
 139                 break;
 140         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 141         case CONNMAN_SERVICE_TYPE_SYSTEM:
 142         case CONNMAN_SERVICE_TYPE_GPS:
 143         case CONNMAN_SERVICE_TYPE_VPN:
 144         case CONNMAN_SERVICE_TYPE_GADGET:
 145                 return -EOPNOTSUPP;
 146         }
 147
 148         interface = connman_location_get_interface(location);
 149         if (interface == NULL)
 150                 return -EINVAL;
 151
 152         DBG("interface %s", interface);
 153
 154         data = g_try_new0(struct server_data, 1);
 155         if (data == NULL) {
 156                 err = -ENOMEM;
 157                 goto done;
 158         }
 159
 160         connman_location_set_data(location, data);
 161
 162         data->web = g_web_new(0);
 163         if (data->web == NULL) {
 164                 g_free(data);
 165                 err = -ENOMEM;
 166                 goto done;
 167         }
 168
 169         if (getenv("CONNMAN_WEB_DEBUG"))
 170                 g_web_set_debug(data->web, web_debug, "WEB");
 171
 172         g_web_set_accept(data->web, NULL);
 173         g_web_set_user_agent(data->web, "ConnMan/%s", VERSION);
 174         g_web_set_close_connection(data->web, TRUE);
 175
 176         connman_location_ref(location);
 177
 178         service = connman_location_get_service(location);
 179         data->token = connman_proxy_lookup(interface, STATUS_URL,
 180                                         service, proxy_callback, location);
 181
 182         if (data->token == 0) {
 183                 connman_location_unref(location);
 184                 err = -EINVAL;
 185         } else
 186                 err = 0;
 187
 188 done:
 189         g_free(interface);
 190         return err;
 191 }
 192
 193 static int location_finish(struct connman_location *location)
 194 {
 195         struct server_data *data = connman_location_get_data(location);
 196
 197         DBG("location %p", location);
 198
 199         connman_location_set_data(location, NULL);
 200
 201         if (data->request_id > 0)
 202                 g_web_cancel_request(data->web, data->request_id);
 203
 204         if (data->token > 0) {
 205                 connman_proxy_lookup_cancel(data->token);
 206                 connman_location_unref(location);
 207         }
 208
 209         g_web_unref(data->web);
 210
 211         g_free(data);
 212
 213         return 0;
 214 }
 215
 216 static struct connman_location_driver location = {
 217         .name           = "portal",
 218         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 219         .priority       = CONNMAN_LOCATION_PRIORITY_HIGH,
 220         .detect         = location_detect,
 221         .finish         = location_finish,
 222 };
 223
 224 static int portal_init(void)
 225 {
 226         return connman_location_driver_register(&location);
 227 }
 228
 229 static void portal_exit(void)
 230 {
 231         connman_location_driver_unregister(&location);
 232 }
 233
 234 CONNMAN_PLUGIN_DEFINE(portal, "Portal detection plugin", VERSION,
 235                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, portal_init, portal_exit)