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