tools/wispr.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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 #define _GNU_SOURCE
  27 #include <stdio.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <signal.h>
  33 #include <termios.h>
  34 #include <netdb.h>
  35
  36 #include <gweb/gweb.h>
  37
  38 #define DEFAULT_URL  "http://www.connman.net/online/status.html"
  39
  40 static GTimer *timer;
  41
  42 static GMainLoop *main_loop;
  43
  44 static void web_debug(const char *str, void *data)
  45 {
  46         g_print("%s: %s\n", (const char *) data, str);
  47 }
  48
  49 static void sig_term(int sig)
  50 {
  51         g_main_loop_quit(main_loop);
  52 }
  53
  54 static const char *message_type_to_string(int message_type)
  55 {
  56         switch (message_type) {
  57         case 100:
  58                 return "Initial redirect message";
  59         case 110:
  60                 return "Proxy notification";
  61         case 120:
  62                 return "Authentication notification";
  63         case 130:
  64                 return "Logoff notification";
  65         case 140:
  66                 return "Response to Authentication Poll";
  67         case 150:
  68                 return "Response to Abort Login";
  69         }
  70
  71         return NULL;
  72 }
  73
  74 static const char *response_code_to_string(int response_code)
  75 {
  76         switch (response_code) {
  77         case 0:
  78                 return "No error";
  79         case 50:
  80                 return "Login succeeded";
  81         case 100:
  82                 return "Login failed";
  83         case 102:
  84                 return "RADIUS server error/timeout";
  85         case 105:
  86                 return "RADIUS server not enabled";
  87         case 150:
  88                 return "Logoff succeeded";
  89         case 151:
  90                 return "Login aborted";
  91         case 200:
  92                 return "Proxy detection/repeat operation";
  93         case 201:
  94                 return "Authentication pending";
  95         case 255:
  96                 return "Access gateway internal error";
  97         }
  98
  99         return NULL;
 100 }
 101
 102 struct wispr_msg {
 103         bool has_error;
 104         const char *current_element;
 105         int message_type;
 106         int response_code;
 107         char *login_url;
 108         char *abort_login_url;
 109         char *logoff_url;
 110         char *access_procedure;
 111         char *access_location;
 112         char *location_name;
 113 };
 114
 115 static inline void wispr_msg_init(struct wispr_msg *msg)
 116 {
 117         msg->has_error = false;
 118         msg->current_element = NULL;
 119
 120         msg->message_type = -1;
 121         msg->response_code = -1;
 122
 123         g_free(msg->login_url);
 124         msg->login_url = NULL;
 125
 126         g_free(msg->abort_login_url);
 127         msg->abort_login_url = NULL;
 128
 129         g_free(msg->logoff_url);
 130         msg->logoff_url = NULL;
 131
 132         g_free(msg->access_procedure);
 133         msg->access_procedure = NULL;
 134
 135         g_free(msg->access_location);
 136         msg->access_location = NULL;
 137
 138         g_free(msg->location_name);
 139         msg->location_name = NULL;
 140 }
 141
 142 struct wispr_session {
 143         GWeb *web;
 144         GWebParser *parser;
 145         guint request;
 146         struct wispr_msg msg;
 147         char *username;
 148         char *password;
 149         char *originurl;
 150         char *formdata;
 151 };
 152
 153 static gboolean execute_login(gpointer user_data);
 154
 155 static struct {
 156         const char *str;
 157         enum {
 158                 WISPR_ELEMENT_NONE,
 159                 WISPR_ELEMENT_ACCESS_PROCEDURE,
 160                 WISPR_ELEMENT_ACCESS_LOCATION,
 161                 WISPR_ELEMENT_LOCATION_NAME,
 162                 WISPR_ELEMENT_LOGIN_URL,
 163                 WISPR_ELEMENT_ABORT_LOGIN_URL,
 164                 WISPR_ELEMENT_MESSAGE_TYPE,
 165                 WISPR_ELEMENT_RESPONSE_CODE,
 166                 WISPR_ELEMENT_NEXT_URL,
 167                 WISPR_ELEMENT_DELAY,
 168                 WISPR_ELEMENT_REPLY_MESSAGE,
 169                 WISPR_ELEMENT_LOGIN_RESULTS_URL,
 170                 WISPR_ELEMENT_LOGOFF_URL,
 171         } element;
 172 } wispr_element_map[] = {
 173         { "AccessProcedure",    WISPR_ELEMENT_ACCESS_PROCEDURE  },
 174         { "AccessLocation",     WISPR_ELEMENT_ACCESS_LOCATION   },
 175         { "LocationName",       WISPR_ELEMENT_LOCATION_NAME     },
 176         { "LoginURL",           WISPR_ELEMENT_LOGIN_URL         },
 177         { "AbortLoginURL",      WISPR_ELEMENT_ABORT_LOGIN_URL   },
 178         { "MessageType",        WISPR_ELEMENT_MESSAGE_TYPE      },
 179         { "ResponseCode",       WISPR_ELEMENT_RESPONSE_CODE     },
 180         { "NextURL",            WISPR_ELEMENT_NEXT_URL          },
 181         { "Delay",              WISPR_ELEMENT_DELAY             },
 182         { "ReplyMessage",       WISPR_ELEMENT_REPLY_MESSAGE     },
 183         { "LoginResultsURL",    WISPR_ELEMENT_LOGIN_RESULTS_URL },
 184         { "LogoffURL",          WISPR_ELEMENT_LOGOFF_URL        },
 185         { NULL,                 WISPR_ELEMENT_NONE              },
 186 };
 187
 188 static void start_element_handler(GMarkupParseContext *context,
 189                                         const gchar *element_name,
 190                                         const gchar **attribute_names,
 191                                         const gchar **attribute_values,
 192                                         gpointer user_data, GError **error)
 193 {
 194         struct wispr_msg *msg = user_data;
 195
 196         msg->current_element = element_name;
 197 }
 198
 199 static void end_element_handler(GMarkupParseContext *context,
 200                                         const gchar *element_name,
 201                                         gpointer user_data, GError **error)
 202 {
 203         struct wispr_msg *msg = user_data;
 204
 205         msg->current_element = NULL;
 206 }
 207
 208 static void text_handler(GMarkupParseContext *context,
 209                                         const gchar *text, gsize text_len,
 210                                         gpointer user_data, GError **error)
 211 {
 212         struct wispr_msg *msg = user_data;
 213         int i;
 214
 215         if (!msg->current_element)
 216                 return;
 217
 218         for (i = 0; wispr_element_map[i].str; i++) {
 219                 if (!g_str_equal(wispr_element_map[i].str, msg->current_element))
 220                         continue;
 221
 222                 switch (wispr_element_map[i].element) {
 223                 case WISPR_ELEMENT_NONE:
 224                 case WISPR_ELEMENT_ACCESS_PROCEDURE:
 225                         g_free(msg->access_procedure);
 226                         msg->access_procedure = g_strdup(text);
 227                         break;
 228                 case WISPR_ELEMENT_ACCESS_LOCATION:
 229                         g_free(msg->access_location);
 230                         msg->access_location = g_strdup(text);
 231                         break;
 232                 case WISPR_ELEMENT_LOCATION_NAME:
 233                         g_free(msg->location_name);
 234                         msg->location_name = g_strdup(text);
 235                         break;
 236                 case WISPR_ELEMENT_LOGIN_URL:
 237                         g_free(msg->login_url);
 238                         msg->login_url = g_strdup(text);
 239                         break;
 240                 case WISPR_ELEMENT_ABORT_LOGIN_URL:
 241                         g_free(msg->abort_login_url);
 242                         msg->abort_login_url = g_strdup(text);
 243                         break;
 244                 case WISPR_ELEMENT_MESSAGE_TYPE:
 245                         msg->message_type = atoi(text);
 246                         break;
 247                 case WISPR_ELEMENT_RESPONSE_CODE:
 248                         msg->response_code = atoi(text);
 249                         break;
 250                 case WISPR_ELEMENT_NEXT_URL:
 251                 case WISPR_ELEMENT_DELAY:
 252                 case WISPR_ELEMENT_REPLY_MESSAGE:
 253                 case WISPR_ELEMENT_LOGIN_RESULTS_URL:
 254                         break;
 255                 case WISPR_ELEMENT_LOGOFF_URL:
 256                         g_free(msg->logoff_url);
 257                         msg->logoff_url = g_strdup(text);
 258                         break;
 259                 }
 260         }
 261 }
 262
 263 static void error_handler(GMarkupParseContext *context,
 264                                         GError *error, gpointer user_data)
 265 {
 266         struct wispr_msg *msg = user_data;
 267
 268         msg->has_error = true;
 269 }
 270
 271 static const GMarkupParser wispr_parser = {
 272         start_element_handler,
 273         end_element_handler,
 274         text_handler,
 275         NULL,
 276         error_handler,
 277 };
 278
 279 static void parser_callback(const char *str, gpointer user_data)
 280 {
 281         struct wispr_session *wispr = user_data;
 282         GMarkupParseContext *context;
 283         bool result;
 284
 285         //printf("%s\n", str);
 286
 287         context = g_markup_parse_context_new(&wispr_parser,
 288                         G_MARKUP_TREAT_CDATA_AS_TEXT, &wispr->msg, NULL);
 289
 290         result = g_markup_parse_context_parse(context, str, strlen(str), NULL);
 291         if (result)
 292                 g_markup_parse_context_end_parse(context, NULL);
 293
 294         g_markup_parse_context_free(context);
 295 }
 296
 297 typedef void (*user_input_cb)(const char *value, gpointer user_data);
 298
 299 struct user_input_data {
 300         GString *str;
 301         user_input_cb cb;
 302         gpointer user_data;
 303         bool hidden;
 304         int fd;
 305         struct termios saved_termios;
 306 };
 307
 308 static void user_callback(struct user_input_data *data)
 309 {
 310         char *value;
 311
 312         if (data->hidden) {
 313                 ssize_t len;
 314
 315                 len = write(data->fd, "\n", 1);
 316                 if (len < 0)
 317                         return;
 318         }
 319
 320         tcsetattr(data->fd, TCSADRAIN, &data->saved_termios);
 321
 322         close(data->fd);
 323
 324         value = g_string_free(data->str, FALSE);
 325
 326         if (data->cb)
 327                 data->cb(value, data->user_data);
 328
 329         g_free(value);
 330
 331         g_free(data);
 332 }
 333
 334 static gboolean keyboard_input(GIOChannel *channel, GIOCondition condition,
 335                                                         gpointer user_data)
 336 {
 337         struct user_input_data *data = user_data;
 338         char buf[1];
 339         int len;
 340
 341         len = read(data->fd, buf, 1);
 342
 343         if (len != 1)
 344                 return TRUE;
 345
 346         if (buf[0] == '\n') {
 347                 user_callback(data);
 348                 return FALSE;
 349         }
 350
 351         g_string_append_c(data->str, buf[0]);
 352
 353         if (data->hidden)
 354                 len = write(data->fd, "*", 1);
 355
 356         return TRUE;
 357 }
 358
 359 static bool user_input(const char *label, bool hidden,
 360                                 user_input_cb func, gpointer user_data)
 361 {
 362         struct user_input_data *data;
 363         struct termios new_termios;
 364         GIOChannel *channel;
 365         guint watch;
 366         ssize_t len;
 367
 368         data = g_try_new0(struct user_input_data, 1);
 369         if (!data)
 370                 return false;
 371
 372         data->str = g_string_sized_new(32);
 373         data->cb = func;
 374         data->user_data = user_data;
 375         data->hidden = hidden;
 376
 377         data->fd = open("/dev/tty", O_RDWR | O_NOCTTY | O_CLOEXEC);
 378         if (data->fd < 0)
 379                 goto error;
 380
 381         if (tcgetattr(data->fd, &data->saved_termios) < 0) {
 382                 close(data->fd);
 383                 goto error;
 384         }
 385
 386         new_termios = data->saved_termios;
 387         if (data->hidden)
 388                 new_termios.c_lflag &= ~(ICANON|ECHO);
 389         else
 390                 new_termios.c_lflag &= ~ICANON;
 391         new_termios.c_cc[VMIN] = 1;
 392         new_termios.c_cc[VTIME] = 0;
 393
 394         tcsetattr(data->fd, TCSADRAIN, &new_termios);
 395
 396         channel = g_io_channel_unix_new(data->fd);
 397         g_io_channel_set_encoding(channel, NULL, NULL);
 398         g_io_channel_set_buffered(channel, FALSE);
 399         watch = g_io_add_watch(channel, G_IO_IN, keyboard_input, data);
 400         g_io_channel_unref(channel);
 401
 402         if (watch == 0)
 403                 goto error;
 404
 405         len = write(data->fd, label, strlen(label));
 406         if (len < 0)
 407                 goto error;
 408
 409         len = write(data->fd, ": ", 2);
 410         if (len < 0)
 411                 goto error;
 412
 413         return true;
 414
 415 error:
 416         g_string_free(data->str, TRUE);
 417         g_free(data);
 418
 419         return false;
 420 }
 421
 422 static void password_callback(const char *value, gpointer user_data)
 423 {
 424         struct wispr_session *wispr = user_data;
 425
 426         g_free(wispr->password);
 427         wispr->password = g_strdup(value);
 428
 429         printf("\n");
 430
 431         execute_login(wispr);
 432 }
 433
 434 static void username_callback(const char *value, gpointer user_data)
 435 {
 436         struct wispr_session *wispr = user_data;
 437
 438         g_free(wispr->username);
 439         wispr->username = g_strdup(value);
 440
 441         if (!wispr->password) {
 442                 user_input("Password", true, password_callback, wispr);
 443                 return;
 444         }
 445
 446         printf("\n");
 447
 448         execute_login(wispr);
 449 }
 450
 451 static bool wispr_input(const guint8 **data, gsize *length,
 452                                                 gpointer user_data)
 453 {
 454         struct wispr_session *wispr = user_data;
 455         GString *buf;
 456         gsize count;
 457
 458         buf = g_string_sized_new(100);
 459
 460         g_string_append(buf, "button=Login&UserName=");
 461         g_string_append_uri_escaped(buf, wispr->username, NULL, FALSE);
 462         g_string_append(buf, "&Password=");
 463         g_string_append_uri_escaped(buf, wispr->password, NULL, FALSE);
 464         g_string_append(buf, "&FNAME=0&OriginatingServer=");
 465         g_string_append_uri_escaped(buf, wispr->originurl, NULL, FALSE);
 466
 467         count = buf->len;
 468
 469         g_free(wispr->formdata);
 470         wispr->formdata = g_string_free(buf, FALSE);
 471
 472         *data = (guint8 *) wispr->formdata;
 473         *length = count;
 474
 475         return false;
 476 }
 477
 478 static bool wispr_route(const char *addr, int ai_family, int if_index,
 479                 gpointer user_data)
 480 {
 481         char *family = "unknown";
 482
 483         if (ai_family == AF_INET)
 484                 family = "IPv4";
 485         else if (ai_family == AF_INET6)
 486                 family = "IPv6";
 487
 488         printf("Route request: %s %s index %d\n", family, addr, if_index);
 489
 490         if (ai_family != AF_INET && ai_family != AF_INET6)
 491                 return false;
 492
 493         return true;
 494 }
 495
 496 static bool wispr_result(GWebResult *result, gpointer user_data)
 497 {
 498         struct wispr_session *wispr = user_data;
 499         const guint8 *chunk;
 500         gsize length;
 501         guint16 status;
 502         gdouble elapsed;
 503
 504         g_web_result_get_chunk(result, &chunk, &length);
 505
 506         if (length > 0) {
 507                 //printf("%s\n", (char *) chunk);
 508                 g_web_parser_feed_data(wispr->parser, chunk, length);
 509                 return true;
 510         }
 511
 512         g_web_parser_end_data(wispr->parser);
 513
 514         status = g_web_result_get_status(result);
 515
 516         g_print("status: %03u\n", status);
 517
 518         elapsed = g_timer_elapsed(timer, NULL);
 519
 520         g_print("elapse: %f seconds\n", elapsed);
 521
 522         if (wispr->msg.message_type < 0) {
 523                 const char *redirect;
 524
 525                 if (status != 302)
 526                         goto done;
 527
 528                 if (!g_web_result_get_header(result, "Location", &redirect))
 529                         goto done;
 530
 531                 printf("Redirect URL: %s\n", redirect);
 532                 printf("\n");
 533
 534                 wispr->request = g_web_request_get(wispr->web, redirect,
 535                                 wispr_result, wispr_route, wispr);
 536
 537                 return false;
 538         }
 539
 540         printf("Message type: %s (%d)\n",
 541                         message_type_to_string(wispr->msg.message_type),
 542                                                 wispr->msg.message_type);
 543         printf("Response code: %s (%d)\n",
 544                         response_code_to_string(wispr->msg.response_code),
 545                                                 wispr->msg.response_code);
 546         if (wispr->msg.access_procedure)
 547                 printf("Access procedure: %s\n", wispr->msg.access_procedure);
 548         if (wispr->msg.access_location)
 549                 printf("Access location: %s\n", wispr->msg.access_location);
 550         if (wispr->msg.location_name)
 551                 printf("Location name: %s\n", wispr->msg.location_name);
 552         if (wispr->msg.login_url)
 553                 printf("Login URL: %s\n", wispr->msg.login_url);
 554         if (wispr->msg.abort_login_url)
 555                 printf("Abort login URL: %s\n", wispr->msg.abort_login_url);
 556         if (wispr->msg.logoff_url)
 557                 printf("Logoff URL: %s\n", wispr->msg.logoff_url);
 558         printf("\n");
 559
 560         if (status != 200 && status != 302 && status != 404)
 561                 goto done;
 562
 563         if (wispr->msg.message_type == 100) {
 564                 if (!wispr->username) {
 565                         user_input("Username", false,
 566                                    username_callback, wispr);
 567                         return false;
 568                 }
 569
 570                 if (!wispr->password) {
 571                         user_input("Password", true, password_callback, wispr);
 572                         return false;
 573                 }
 574
 575                 g_idle_add(execute_login, wispr);
 576                 return false;
 577         } else if (wispr->msg.message_type == 120 ||
 578                                         wispr->msg.message_type == 140) {
 579                 int code = wispr->msg.response_code;
 580                 printf("Login process: %s\n",
 581                                         code == 50 ? "SUCCESS" : "FAILURE");
 582         }
 583
 584         if (status == 302) {
 585                 const char *redirect;
 586
 587                 if (!g_web_result_get_header(result, "Location", &redirect))
 588                         goto done;
 589
 590                 printf("\n");
 591                 printf("Redirect URL: %s\n", redirect);
 592                 printf("\n");
 593
 594                 wispr->request = g_web_request_get(wispr->web, redirect,
 595                                 wispr_result, NULL, wispr);
 596
 597                 return false;
 598         }
 599
 600 done:
 601         g_main_loop_quit(main_loop);
 602
 603         return false;
 604 }
 605
 606 static gboolean execute_login(gpointer user_data)
 607 {
 608         struct wispr_session *wispr = user_data;
 609
 610         wispr->request = g_web_request_post(wispr->web, wispr->msg.login_url,
 611                                         "application/x-www-form-urlencoded",
 612                                         wispr_input, wispr_result, wispr);
 613
 614         wispr_msg_init(&wispr->msg);
 615
 616         return FALSE;
 617 }
 618
 619 static bool option_debug = false;
 620 static gchar *option_nameserver = NULL;
 621 static gchar *option_username = NULL;
 622 static gchar *option_password = NULL;
 623 static gchar *option_url = NULL;
 624
 625 static GOptionEntry options[] = {
 626         { "debug", 'd', 0, G_OPTION_ARG_NONE, &option_debug,
 627                                         "Enable debug output" },
 628         { "nameserver", 'n', 0, G_OPTION_ARG_STRING, &option_nameserver,
 629                                         "Specify nameserver", "ADDRESS" },
 630         { "username", 'u', 0, G_OPTION_ARG_STRING, &option_username,
 631                                         "Specify username", "USERNAME" },
 632         { "password", 'p', 0, G_OPTION_ARG_STRING, &option_password,
 633                                         "Specify password", "PASSWORD" },
 634         { "url", 'U', 0, G_OPTION_ARG_STRING, &option_url,
 635                                         "Specify arbitrary request", "URL" },
 636         { NULL },
 637 };
 638
 639 int main(int argc, char *argv[])
 640 {
 641         GOptionContext *context;
 642         GError *error = NULL;
 643         struct sigaction sa;
 644         struct wispr_session wispr;
 645         int index = 0;
 646
 647         context = g_option_context_new(NULL);
 648         g_option_context_add_main_entries(context, options, NULL);
 649
 650         if (!g_option_context_parse(context, &argc, &argv, &error)) {
 651                 if (error) {
 652                         g_printerr("%s\n", error->message);
 653                         g_error_free(error);
 654                 } else
 655                         g_printerr("An unknown error occurred\n");
 656                 return 1;
 657         }
 658
 659         g_option_context_free(context);
 660
 661         memset(&wispr, 0, sizeof(wispr));
 662         wispr_msg_init(&wispr.msg);
 663
 664         wispr.web = g_web_new(index);
 665         if (!wispr.web) {
 666                 fprintf(stderr, "Failed to create web service\n");
 667                 return 1;
 668         }
 669
 670         if (option_debug)
 671                 g_web_set_debug(wispr.web, web_debug, "WEB");
 672
 673         main_loop = g_main_loop_new(NULL, FALSE);
 674
 675         if (option_nameserver) {
 676                 g_web_add_nameserver(wispr.web, option_nameserver);
 677                 g_free(option_nameserver);
 678         }
 679
 680         g_web_set_accept(wispr.web, NULL);
 681         g_web_set_user_agent(wispr.web, "SmartClient/%s wispr", VERSION);
 682         g_web_set_close_connection(wispr.web, TRUE);
 683
 684         if (!option_url)
 685                 option_url = g_strdup(DEFAULT_URL);
 686
 687         wispr.username = option_username;
 688         wispr.password = option_password;
 689         wispr.originurl = option_url;
 690
 691         timer = g_timer_new();
 692
 693         wispr.parser = g_web_parser_new("<WISPAccessGatewayParam",
 694                                                 "WISPAccessGatewayParam>",
 695                                                 parser_callback, &wispr);
 696
 697         wispr.request = g_web_request_get(wispr.web, option_url,
 698                         wispr_result, wispr_route, &wispr);
 699
 700         if (wispr.request == 0) {
 701                 fprintf(stderr, "Failed to start request\n");
 702                 return 1;
 703         }
 704
 705         memset(&sa, 0, sizeof(sa));
 706         sa.sa_handler = sig_term;
 707         sigaction(SIGINT, &sa, NULL);
 708         sigaction(SIGTERM, &sa, NULL);
 709
 710         g_main_loop_run(main_loop);
 711
 712         g_timer_destroy(timer);
 713
 714         if (wispr.request > 0)
 715                 g_web_cancel_request(wispr.web, wispr.request);
 716
 717         g_web_parser_unref(wispr.parser);
 718         g_web_unref(wispr.web);
 719
 720         g_main_loop_unref(main_loop);
 721
 722         g_free(wispr.username);
 723         g_free(wispr.password);
 724         g_free(wispr.originurl);
 725
 726         return 0;
 727 }