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