tools/wispr.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 #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
  35 #include <gweb/gweb.h>
  36
  37 #define DEFAULT_URL  "http://www.connman.net/online/status.html"
  38
  39 static GTimer *timer;
  40
  41 static GMainLoop *main_loop;
  42
  43 static void web_debug(const char *str, void *data)
  44 {
  45         g_print("%s: %s\n", (const char *) data, str);
  46 }
  47
  48 static void sig_term(int sig)
  49 {
  50         g_main_loop_quit(main_loop);
  51 }
  52
  53 static const char *message_type_to_string(int message_type)
  54 {
  55         switch (message_type) {
  56         case 100:
  57                 return "Initial redirect message";
  58         case 110:
  59                 return "Proxy notification";
  60         case 120:
  61                 return "Authentication notification";
  62         case 130:
  63                 return "Logoff notification";
  64         case 140:
  65                 return "Response to Authentication Poll";
  66         case 150:
  67                 return "Response to Abort Login";
  68         }
  69
  70         return NULL;
  71 }
  72
  73 static const char *response_code_to_string(int response_code)
  74 {
  75         switch (response_code) {
  76         case 0:
  77                 return "No error";
  78         case 50:
  79                 return "Login succeeded";
  80         case 100:
  81                 return "Login failed";
  82         case 102:
  83                 return "RADIUS server error/timeout";
  84         case 105:
  85                 return "RADIUS server not enabled";
  86         case 150:
  87                 return "Logoff succeeded";
  88         case 151:
  89                 return "Login aborted";
  90         case 200:
  91                 return "Proxy detection/repeat operation";
  92         case 201:
  93                 return "Authentication pending";
  94         case 255:
  95                 return "Access gateway internal error";
  96         }
  97
  98         return NULL;
  99 }
 100
 101 struct wispr_msg {
 102         gboolean has_error;
 103         const char *current_element;
 104         int message_type;
 105         int response_code;
 106         char *login_url;
 107         char *abort_login_url;
 108         char *logoff_url;
 109         char *access_procedure;
 110         char *access_location;
 111         char *location_name;
 112 };
 113
 114 static inline void wispr_msg_init(struct wispr_msg *msg)
 115 {
 116         msg->has_error = FALSE;
 117         msg->current_element = NULL;
 118
 119         msg->message_type = -1;
 120         msg->response_code = -1;
 121
 122         g_free(msg->login_url);
 123         msg->login_url = NULL;
 124
 125         g_free(msg->abort_login_url);
 126         msg->abort_login_url = NULL;
 127
 128         g_free(msg->logoff_url);
 129         msg->logoff_url = NULL;
 130
 131         g_free(msg->access_procedure);
 132         msg->access_procedure = NULL;
 133
 134         g_free(msg->access_location);
 135         msg->access_location = NULL;
 136
 137         g_free(msg->location_name);
 138         msg->location_name = NULL;
 139 }
 140
 141 struct wispr_session {
 142         GWeb *web;
 143         GWebParser *parser;
 144         guint request;
 145         struct wispr_msg msg;
 146         char *username;
 147         char *password;
 148         char *originurl;
 149         char *formdata;
 150 };
 151
 152 static gboolean execute_login(gpointer user_data);
 153
 154 static struct {
 155         const char *str;
 156         enum {
 157                 WISPR_ELEMENT_NONE,
 158                 WISPR_ELEMENT_ACCESS_PROCEDURE,
 159                 WISPR_ELEMENT_ACCESS_LOCATION,
 160                 WISPR_ELEMENT_LOCATION_NAME,
 161                 WISPR_ELEMENT_LOGIN_URL,
 162                 WISPR_ELEMENT_ABORT_LOGIN_URL,
 163                 WISPR_ELEMENT_MESSAGE_TYPE,
 164                 WISPR_ELEMENT_RESPONSE_CODE,
 165                 WISPR_ELEMENT_NEXT_URL,
 166                 WISPR_ELEMENT_DELAY,
 167                 WISPR_ELEMENT_REPLY_MESSAGE,
 168                 WISPR_ELEMENT_LOGIN_RESULTS_URL,
 169                 WISPR_ELEMENT_LOGOFF_URL,
 170         } element;
 171 } wispr_element_map[] = {
 172         { "AccessProcedure",    WISPR_ELEMENT_ACCESS_PROCEDURE  },
 173         { "AccessLocation",     WISPR_ELEMENT_ACCESS_LOCATION   },
 174         { "LocationName",       WISPR_ELEMENT_LOCATION_NAME     },
 175         { "LoginURL",           WISPR_ELEMENT_LOGIN_URL         },
 176         { "AbortLoginURL",      WISPR_ELEMENT_ABORT_LOGIN_URL   },
 177         { "MessageType",        WISPR_ELEMENT_MESSAGE_TYPE      },
 178         { "ResponseCode",       WISPR_ELEMENT_RESPONSE_CODE     },
 179         { "NextURL",            WISPR_ELEMENT_NEXT_URL          },
 180         { "Delay",              WISPR_ELEMENT_DELAY             },
 181         { "ReplyMessage",       WISPR_ELEMENT_REPLY_MESSAGE     },
 182         { "LoginResultsURL",    WISPR_ELEMENT_LOGIN_RESULTS_URL },
 183         { "LogoffURL",          WISPR_ELEMENT_LOGOFF_URL        },
 184         { NULL,                 WISPR_ELEMENT_NONE              },
 185 };
 186
 187 static void start_element_handler(GMarkupParseContext *context,
 188                                         const gchar *element_name,
 189                                         const gchar **attribute_names,
 190                                         const gchar **attribute_values,
 191                                         gpointer user_data, GError **error)
 192 {
 193         struct wispr_msg *msg = user_data;
 194
 195         msg->current_element = element_name;
 196 }
 197
 198 static void end_element_handler(GMarkupParseContext *context,
 199                                         const gchar *element_name,
 200                                         gpointer user_data, GError **error)
 201 {
 202         struct wispr_msg *msg = user_data;
 203
 204         msg->current_element = NULL;
 205 }
 206
 207 static void text_handler(GMarkupParseContext *context,
 208                                         const gchar *text, gsize text_len,
 209                                         gpointer user_data, GError **error)
 210 {
 211         struct wispr_msg *msg = user_data;
 212         int i;
 213
 214         if (msg->current_element == NULL)
 215                 return;
 216
 217         for (i = 0; wispr_element_map[i].str; i++) {
 218                 if (g_str_equal(wispr_element_map[i].str,
 219                                         msg->current_element) == FALSE)
 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         gboolean 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 == TRUE)
 292                 result = 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         gboolean 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 == TRUE) {
 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 == TRUE)
 354                 len = write(data->fd, "*", 1);
 355
 356         return TRUE;
 357 }
 358
 359 static gboolean user_input(const char *label, gboolean 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 == NULL)
 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 == TRUE)
 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 == NULL) {
 442                 user_input("Password", TRUE, password_callback, wispr);
 443                 return;
 444         }
 445
 446         printf("\n");
 447
 448         execute_login(wispr);
 449 }
 450
 451 static gboolean 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 gboolean wispr_result(GWebResult *result, gpointer user_data)
 479 {
 480         struct wispr_session *wispr = user_data;
 481         const guint8 *chunk;
 482         gsize length;
 483         guint16 status;
 484         gdouble elapsed;
 485
 486         g_web_result_get_chunk(result, &chunk, &length);
 487
 488         if (length > 0) {
 489                 //printf("%s\n", (char *) chunk);
 490                 g_web_parser_feed_data(wispr->parser, chunk, length);
 491                 return TRUE;
 492         }
 493
 494         g_web_parser_end_data(wispr->parser);
 495
 496         status = g_web_result_get_status(result);
 497
 498         g_print("status: %03u\n", status);
 499
 500         elapsed = g_timer_elapsed(timer, NULL);
 501
 502         g_print("elapse: %f seconds\n", elapsed);
 503
 504         if (wispr->msg.message_type < 0) {
 505                 const char *redirect;
 506
 507                 if (status != 302)
 508                         goto done;
 509
 510                 if (g_web_result_get_header(result, "Location",
 511                                                         &redirect) == FALSE)
 512                         goto done;
 513
 514                 printf("Redirect URL: %s\n", redirect);
 515                 printf("\n");
 516
 517                 wispr->request = g_web_request_get(wispr->web, redirect,
 518                                                         wispr_result, wispr);
 519
 520                 return FALSE;
 521         }
 522
 523         printf("Message type: %s (%d)\n",
 524                         message_type_to_string(wispr->msg.message_type),
 525                                                 wispr->msg.message_type);
 526         printf("Response code: %s (%d)\n",
 527                         response_code_to_string(wispr->msg.response_code),
 528                                                 wispr->msg.response_code);
 529         if (wispr->msg.access_procedure != NULL)
 530                 printf("Access procedure: %s\n", wispr->msg.access_procedure);
 531         if (wispr->msg.access_location != NULL)
 532                 printf("Access location: %s\n", wispr->msg.access_location);
 533         if (wispr->msg.location_name != NULL)
 534                 printf("Location name: %s\n", wispr->msg.location_name);
 535         if (wispr->msg.login_url != NULL)
 536                 printf("Login URL: %s\n", wispr->msg.login_url);
 537         if (wispr->msg.abort_login_url != NULL)
 538                 printf("Abort login URL: %s\n", wispr->msg.abort_login_url);
 539         if (wispr->msg.logoff_url != NULL)
 540                 printf("Logoff URL: %s\n", wispr->msg.logoff_url);
 541         printf("\n");
 542
 543         if (status != 200 && status != 302 && status != 404)
 544                 goto done;
 545
 546         if (wispr->msg.message_type == 100) {
 547                 if (wispr->username == NULL) {
 548                         user_input("Username", FALSE, username_callback, wispr);
 549                         return FALSE;
 550                 }
 551
 552                 if (wispr->password == NULL) {
 553                         user_input("Password", TRUE, password_callback, wispr);
 554                         return FALSE;
 555                 }
 556
 557                 g_idle_add(execute_login, wispr);
 558                 return FALSE;
 559         } else if (wispr->msg.message_type == 120 ||
 560                                         wispr->msg.message_type == 140) {
 561                 int code = wispr->msg.response_code;
 562                 printf("Login process: %s\n",
 563                                         code == 50 ? "SUCCESS" : "FAILURE");
 564         }
 565
 566         if (status == 302) {
 567                 const char *redirect;
 568
 569                 if (g_web_result_get_header(result, "Location",
 570                                                         &redirect) == FALSE)
 571                         goto done;
 572
 573                 printf("\n");
 574                 printf("Redirect URL: %s\n", redirect);
 575                 printf("\n");
 576
 577                 wispr->request = g_web_request_get(wispr->web, redirect,
 578                                                         wispr_result, wispr);
 579
 580                 return FALSE;
 581         }
 582
 583 done:
 584         g_main_loop_quit(main_loop);
 585
 586         return FALSE;
 587 }
 588
 589 static gboolean execute_login(gpointer user_data)
 590 {
 591         struct wispr_session *wispr = user_data;
 592
 593         wispr->request = g_web_request_post(wispr->web, wispr->msg.login_url,
 594                                         "application/x-www-form-urlencoded",
 595                                         wispr_input, wispr_result, wispr);
 596
 597         wispr_msg_init(&wispr->msg);
 598
 599         return FALSE;
 600 }
 601
 602 static gboolean option_debug = FALSE;
 603 static gchar *option_nameserver = NULL;
 604 static gchar *option_username = NULL;
 605 static gchar *option_password = NULL;
 606 static gchar *option_url = NULL;
 607
 608 static GOptionEntry options[] = {
 609         { "debug", 'd', 0, G_OPTION_ARG_NONE, &option_debug,
 610                                         "Enable debug output" },
 611         { "nameserver", 'n', 0, G_OPTION_ARG_STRING, &option_nameserver,
 612                                         "Specify nameserver", "ADDRESS" },
 613         { "username", 'u', 0, G_OPTION_ARG_STRING, &option_username,
 614                                         "Specify username", "USERNAME" },
 615         { "password", 'p', 0, G_OPTION_ARG_STRING, &option_password,
 616                                         "Specify password", "PASSWORD" },
 617         { "url", 'U', 0, G_OPTION_ARG_STRING, &option_url,
 618                                         "Specify arbitrary request", "URL" },
 619         { NULL },
 620 };
 621
 622 int main(int argc, char *argv[])
 623 {
 624         GOptionContext *context;
 625         GError *error = NULL;
 626         struct sigaction sa;
 627         struct wispr_session wispr;
 628         int index = 0;
 629
 630         context = g_option_context_new(NULL);
 631         g_option_context_add_main_entries(context, options, NULL);
 632
 633         if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
 634                 if (error != NULL) {
 635                         g_printerr("%s\n", error->message);
 636                         g_error_free(error);
 637                 } else
 638                         g_printerr("An unknown error occurred\n");
 639                 return 1;
 640         }
 641
 642         g_option_context_free(context);
 643
 644         memset(&wispr, 0, sizeof(wispr));
 645         wispr_msg_init(&wispr.msg);
 646
 647         wispr.web = g_web_new(index);
 648         if (wispr.web == NULL) {
 649                 fprintf(stderr, "Failed to create web service\n");
 650                 return 1;
 651         }
 652
 653         if (option_debug == TRUE)
 654                 g_web_set_debug(wispr.web, web_debug, "WEB");
 655
 656         main_loop = g_main_loop_new(NULL, FALSE);
 657
 658         if (option_nameserver != NULL) {
 659                 g_web_add_nameserver(wispr.web, option_nameserver);
 660                 g_free(option_nameserver);
 661         }
 662
 663         g_web_set_accept(wispr.web, NULL);
 664         g_web_set_user_agent(wispr.web, "SmartClient/%s wispr", VERSION);
 665         g_web_set_close_connection(wispr.web, TRUE);
 666
 667         if (option_url == NULL)
 668                 option_url = g_strdup(DEFAULT_URL);
 669
 670         wispr.username = option_username;
 671         wispr.password = option_password;
 672         wispr.originurl = option_url;
 673
 674         timer = g_timer_new();
 675
 676         wispr.parser = g_web_parser_new("<WISPAccessGatewayParam",
 677                                                 "WISPAccessGatewayParam>",
 678                                                 parser_callback, &wispr);
 679
 680         wispr.request = g_web_request_get(wispr.web, option_url,
 681                                                         wispr_result, &wispr);
 682
 683         if (wispr.request == 0) {
 684                 fprintf(stderr, "Failed to start request\n");
 685                 return 1;
 686         }
 687
 688         memset(&sa, 0, sizeof(sa));
 689         sa.sa_handler = sig_term;
 690         sigaction(SIGINT, &sa, NULL);
 691         sigaction(SIGTERM, &sa, NULL);
 692
 693         g_main_loop_run(main_loop);
 694
 695         g_timer_destroy(timer);
 696
 697         if (wispr.request > 0)
 698                 g_web_cancel_request(wispr.web, wispr.request);
 699
 700         g_web_parser_unref(wispr.parser);
 701         g_web_unref(wispr.web);
 702
 703         g_main_loop_unref(main_loop);
 704
 705         g_free(wispr.username);
 706         g_free(wispr.password);
 707         g_free(wispr.originurl);
 708
 709         return 0;
 710 }