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         GWeb *web;
  43         guint request_id;
  44 };
  45
  46 static void web_debug(const char *str, void *data)
  47 {
  48         connman_info("%s: %s\n", (const char *) data, str);
  49 }
  50
  51 static gboolean web_result(GWebResult *result, gpointer user_data)
  52 {
  53         struct connman_location *location = user_data;
  54         struct server_data *data = connman_location_get_data(location);
  55         const char *str;
  56         guint16 status;
  57
  58         if (data->request_id == 0)
  59                 return FALSE;
  60
  61         status = g_web_result_get_status(result);
  62
  63         /* If status header is not available, it is a portal */
  64         if (g_web_result_get_header(result, "X-ConnMan-Status", &str) == FALSE)
  65                 status = 302;
  66
  67         DBG("status %u", status);
  68
  69         switch (status) {
  70         case 200:
  71                 if (g_web_result_get_header(result, "X-ConnMan-Client-IP",
  72                                                                 &str) == TRUE)
  73                         connman_info("Client-IP: %s", str);
  74
  75                 if (g_web_result_get_header(result, "X-ConnMan-Client-Country",
  76                                                                 &str) == TRUE)
  77                         connman_info("Client-Country: %s", str);
  78
  79                 connman_location_report_result(location,
  80                                         CONNMAN_LOCATION_RESULT_ONLINE);
  81                 break;
  82         case 302:
  83                 connman_location_report_result(location,
  84                                         CONNMAN_LOCATION_RESULT_PORTAL);
  85                 break;
  86         default:
  87                 connman_location_report_result(location,
  88                                         CONNMAN_LOCATION_RESULT_UNKNOWN);
  89                 break;
  90         }
  91
  92         data->request_id = 0;
  93
  94         return FALSE;
  95 }
  96
  97 static void proxy_callback(const char *proxy, void *user_data)
  98 {
  99         struct connman_location *location = user_data;
 100         struct server_data *data = connman_location_get_data(location);
 101
 102         DBG("proxy %s", proxy);
 103
 104         if (proxy == NULL)
 105                 proxy = getenv("http_proxy");
 106
 107         if (data != NULL) {
 108                 g_web_set_proxy(data->web, proxy);
 109
 110                 data->request_id = g_web_request_get(data->web, STATUS_URL,
 111                                                         web_result, location);
 112         }
 113
 114         connman_location_unref(location);
 115 }
 116
 117 static int location_detect(struct connman_location *location)
 118 {
 119         struct server_data *data;
 120         enum connman_service_type service_type;
 121         char *interface;
 122         int err;
 123
 124         DBG("location %p", location);
 125
 126         service_type = connman_location_get_type(location);
 127
 128         switch (service_type) {
 129         case CONNMAN_SERVICE_TYPE_ETHERNET:
 130         case CONNMAN_SERVICE_TYPE_WIFI:
 131         case CONNMAN_SERVICE_TYPE_WIMAX:
 132         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 133         case CONNMAN_SERVICE_TYPE_CELLULAR:
 134                 break;
 135         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 136         case CONNMAN_SERVICE_TYPE_SYSTEM:
 137         case CONNMAN_SERVICE_TYPE_GPS:
 138         case CONNMAN_SERVICE_TYPE_VPN:
 139         case CONNMAN_SERVICE_TYPE_GADGET:
 140                 return -EOPNOTSUPP;
 141         }
 142
 143         interface = connman_location_get_interface(location);
 144         if (interface == NULL)
 145                 return -EINVAL;
 146
 147         DBG("interface %s", interface);
 148
 149         data = g_try_new0(struct server_data, 1);
 150         if (data == NULL) {
 151                 err = -ENOMEM;
 152                 goto done;
 153         }
 154
 155         connman_location_set_data(location, data);
 156
 157         data->web = g_web_new(0);
 158         if (data->web == NULL) {
 159                 g_free(data);
 160                 err = -ENOMEM;
 161                 goto done;
 162         }
 163
 164         if (getenv("CONNMAN_WEB_DEBUG"))
 165                 g_web_set_debug(data->web, web_debug, "WEB");
 166
 167         g_web_set_accept(data->web, NULL);
 168         g_web_set_user_agent(data->web, "ConnMan/%s", VERSION);
 169         g_web_set_close_connection(data->web, TRUE);
 170
 171         err = connman_proxy_lookup(interface, STATUS_URL,
 172                                         proxy_callback, location);
 173         if (err < 0)
 174                 goto done;
 175
 176         connman_location_ref(location);
 177         err = 0;
 178
 179 done:
 180         g_free(interface);
 181         return err;
 182 }
 183
 184 static int location_finish(struct connman_location *location)
 185 {
 186         struct server_data *data = connman_location_get_data(location);
 187
 188         DBG("location %p", location);
 189
 190         connman_location_set_data(location, NULL);
 191
 192         if (data->request_id > 0)
 193                 g_web_cancel_request(data->web, data->request_id);
 194
 195         g_web_unref(data->web);
 196
 197         g_free(data);
 198
 199         return 0;
 200 }
 201
 202 static struct connman_location_driver location = {
 203         .name           = "portal",
 204         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 205         .priority       = CONNMAN_LOCATION_PRIORITY_HIGH,
 206         .detect         = location_detect,
 207         .finish         = location_finish,
 208 };
 209
 210 static int portal_init(void)
 211 {
 212         return connman_location_driver_register(&location);
 213 }
 214
 215 static void portal_exit(void)
 216 {
 217         connman_location_driver_unregister(&location);
 218 }
 219
 220 CONNMAN_PLUGIN_DEFINE(portal, "Portal detection plugin", VERSION,
 221                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, portal_init, portal_exit)