bti.c

   1 /*
   2  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  16  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <stddef.h>
  21 #include <string.h>
  22 #include <getopt.h>
  23 #include <errno.h>
  24 #include <ctype.h>
  25 #include <fcntl.h>
  26 #include <unistd.h>
  27 #include <time.h>
  28 #include <sys/stat.h>
  29 #include <curl/curl.h>
  30 #include <readline/readline.h>
  31 #include <libxml/xmlmemory.h>
  32 #include <libxml/parser.h>
  33 #include <libxml/tree.h>
  34 #include "bti_version.h"
  35
  36
  37 #define zalloc(size)    calloc(size, 1)
  38
  39 #define dbg(format, arg...)                                             \
  40         do {                                                            \
  41                 if (debug)                                              \
  42                         printf("%s: " format , __func__ , ## arg);      \
  43         } while (0)
  44
  45
  46 static int debug;
  47
  48 enum host {
  49         HOST_TWITTER = 0,
  50         HOST_IDENTICA = 1,
  51 };
  52
  53 enum action {
  54         ACTION_UPDATE = 0,
  55         ACTION_FRIENDS = 1,
  56         ACTION_USER = 2,
  57         ACTION_REPLIES = 4,
  58         ACTION_PUBLIC = 8,
  59         ACTION_UNKNOWN = 16
  60 };
  61
  62 struct session {
  63         char *password;
  64         char *account;
  65         char *tweet;
  66         char *proxy;
  67         char *time;
  68         char *homedir;
  69         char *logfile;
  70         char *user;
  71         int bash;
  72         int page;
  73         enum host host;
  74         enum action action;
  75 };
  76
  77 struct bti_curl_buffer {
  78         char *data;
  79         enum action action;
  80         int length;
  81 };
  82
  83 static void display_help(void)
  84 {
  85         fprintf(stdout, "bti - send tweet to twitter or identi.ca\n");
  86         fprintf(stdout, "Version: " BTI_VERSION "\n");
  87         fprintf(stdout, "Usage:\n");
  88         fprintf(stdout, "  bti [options]\n");
  89         fprintf(stdout, "options are:\n");
  90         fprintf(stdout, "  --account accountname\n");
  91         fprintf(stdout, "  --password password\n");
  92         fprintf(stdout, "  --action action\n");
  93         fprintf(stdout, "    ('update', 'friends', 'public', 'replies' or 'user')\n");
  94         fprintf(stdout, "  --user screenname\n");
  95         fprintf(stdout, "  --proxy PROXY:PORT\n");
  96         fprintf(stdout, "  --host HOST\n");
  97         fprintf(stdout, "  --logfile logfile\n");
  98         fprintf(stdout, "  --bash\n");
  99         fprintf(stdout, "  --debug\n");
 100         fprintf(stdout, "  --version\n");
 101         fprintf(stdout, "  --help\n");
 102 }
 103
 104 static void display_version(void)
 105 {
 106         fprintf(stdout, "bti - version %s\n", BTI_VERSION);
 107 }
 108
 109 static struct session *session_alloc(void)
 110 {
 111         struct session *session;
 112
 113         session = zalloc(sizeof(*session));
 114         if (!session)
 115                 return NULL;
 116         return session;
 117 }
 118
 119 static void session_free(struct session *session)
 120 {
 121         if (!session)
 122                 return;
 123         free(session->password);
 124         free(session->account);
 125         free(session->tweet);
 126         free(session->proxy);
 127         free(session->time);
 128         free(session->homedir);
 129         free(session->user);
 130         free(session);
 131 }
 132
 133 static struct bti_curl_buffer *bti_curl_buffer_alloc(enum action action)
 134 {
 135         struct bti_curl_buffer *buffer;
 136
 137         buffer = zalloc(sizeof(*buffer));
 138         if (!buffer)
 139                 return NULL;
 140
 141         /* start out with a data buffer of 1 byte to
 142          * make the buffer fill logic simpler */
 143         buffer->data = zalloc(1);
 144         if (!buffer->data) {
 145                 free(buffer);
 146                 return NULL;
 147         }
 148         buffer->length = 0;
 149         buffer->action = action;
 150         return buffer;
 151 }
 152
 153 static void bti_curl_buffer_free(struct bti_curl_buffer *buffer)
 154 {
 155         if (!buffer)
 156                 return;
 157         free(buffer->data);
 158         free(buffer);
 159 }
 160
 161 static const char *twitter_user_url    = "http://twitter.com/statuses/user_timeline/";
 162 static const char *twitter_update_url  = "https://twitter.com/statuses/update.xml";
 163 static const char *twitter_public_url  = "http://twitter.com/statuses/public_timeline.xml";
 164 static const char *twitter_friends_url = "https://twitter.com/statuses/friends_timeline.xml";
 165 static const char *twitter_replies_url = "http://twitter.com/statuses/replies.xml";
 166
 167 static const char *identica_user_url    = "http://identi.ca/api/statuses/user_timeline/";
 168 static const char *identica_update_url  = "http://identi.ca/api/statuses/update.xml";
 169 static const char *identica_public_url  = "http://identi.ca/api/statuses/public_timeline.xml";
 170 static const char *identica_friends_url = "http://identi.ca/api/statuses/friends_timeline.xml";
 171 static const char *identica_replies_url = "http://identi.ca/api/statuses/replies.xml";
 172
 173 static CURL *curl_init(void)
 174 {
 175         CURL *curl;
 176
 177         curl = curl_easy_init();
 178         if (!curl) {
 179                 fprintf(stderr, "Can not init CURL!\n");
 180                 return NULL;
 181         }
 182         /* some ssl sanity checks on the connection we are making */
 183         curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
 184         curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
 185         return curl;
 186 }
 187
 188 void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 189 {
 190         xmlChar *text = NULL;
 191         xmlChar *user = NULL;
 192         xmlNodePtr userinfo;
 193
 194         current = current->xmlChildrenNode;
 195         while (current != NULL) {
 196                 if (current->type == XML_ELEMENT_NODE) {
 197                         if (!xmlStrcmp(current->name, (const xmlChar *)"text"))
 198                                 text = xmlNodeListGetString(doc, current->xmlChildrenNode, 1);
 199                         if (!xmlStrcmp(current->name, (const xmlChar *)"user")) {
 200                                 userinfo = current->xmlChildrenNode;
 201                                 while (userinfo != NULL) {
 202                                         if ((!xmlStrcmp(userinfo->name, (const xmlChar *)"screen_name"))) {
 203                                                 if (user)
 204                                                         xmlFree(user);
 205                                                 user = xmlNodeListGetString(doc, userinfo->xmlChildrenNode, 1);
 206                                         }
 207                                         userinfo = userinfo->next;
 208                                 }
 209                         }
 210                         if (user && text) {
 211                                 printf("[%s] %s\n", user, text);
 212                                 xmlFree(user);
 213                                 xmlFree(text);
 214                                 user = NULL;
 215                                 text = NULL;
 216                         }
 217                 }
 218                 current = current->next;
 219         }
 220
 221         return;
 222 }
 223
 224 static void parse_timeline(char *document)
 225 {
 226         xmlDocPtr doc;
 227         xmlNodePtr current;
 228         doc = xmlReadMemory(document, strlen(document), "timeline.xml", NULL, XML_PARSE_NOERROR);
 229
 230         if (doc == NULL)
 231                 return;
 232
 233         current = xmlDocGetRootElement(doc);
 234         if (current == NULL) {
 235                 fprintf(stderr, "empty document\n");
 236                 xmlFreeDoc(doc);
 237                 return;
 238         }
 239
 240         if (xmlStrcmp(current->name, (const xmlChar *) "statuses")) {
 241                 fprintf(stderr, "unexpected document type\n");
 242                 xmlFreeDoc(doc);
 243                 return;
 244         }
 245
 246         current = current->xmlChildrenNode;
 247         while (current != NULL) {
 248                 if ((!xmlStrcmp(current->name, (const xmlChar *)"status")))
 249                         parse_statuses(doc, current);
 250                 current = current->next;
 251         }
 252         xmlFreeDoc(doc);
 253
 254         return;
 255 }
 256
 257 size_t curl_callback(void *buffer, size_t size, size_t nmemb, void *userp)
 258 {
 259         struct bti_curl_buffer *curl_buf = userp;
 260         size_t buffer_size = size * nmemb;
 261         char *temp;
 262
 263         if ((!buffer) || (!buffer_size) || (!curl_buf))
 264                 return -EINVAL;
 265
 266         /* add to the data we already have */
 267         temp = zalloc(curl_buf->length + buffer_size + 1);
 268         if (!temp)
 269                 return -ENOMEM;
 270
 271         memcpy(temp, curl_buf->data, curl_buf->length);
 272         free(curl_buf->data);
 273         curl_buf->data = temp;
 274         memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size);
 275         curl_buf->length += buffer_size;
 276         if (curl_buf->action)
 277                 parse_timeline(curl_buf->data);
 278
 279         dbg("%s\n", curl_buf->data);
 280
 281         return buffer_size;
 282 }
 283
 284 static int send_request(struct session *session)
 285 {
 286         char user_password[500];
 287         char data[500];
 288         /* is there usernames longer than 22 chars? */
 289         char user_url[70];
 290         struct bti_curl_buffer *curl_buf;
 291         CURL *curl = NULL;
 292         CURLcode res;
 293         struct curl_httppost *formpost = NULL;
 294         struct curl_httppost *lastptr = NULL;
 295         struct curl_slist *slist = NULL;
 296
 297         if (!session)
 298                 return -EINVAL;
 299
 300         curl_buf = bti_curl_buffer_alloc(session->action);
 301         if (!curl_buf)
 302                 return -ENOMEM;
 303
 304         curl = curl_init();
 305         if (!curl)
 306                 return -EINVAL;
 307
 308         switch (session->action) {
 309         case ACTION_UPDATE:
 310                 snprintf(user_password, sizeof(user_password), "%s:%s",
 311                          session->account, session->password);
 312                 snprintf(data, sizeof(data), "status=\"%s\"", session->tweet);
 313                 curl_formadd(&formpost, &lastptr,
 314                              CURLFORM_COPYNAME, "status",
 315                              CURLFORM_COPYCONTENTS, session->tweet,
 316                              CURLFORM_END);
 317
 318                 curl_formadd(&formpost, &lastptr,
 319                              CURLFORM_COPYNAME, "source",
 320                              CURLFORM_COPYCONTENTS, "bti",
 321                              CURLFORM_END);
 322
 323                 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
 324                 slist = curl_slist_append(slist, "Expect:");
 325                 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
 326                 switch (session->host) {
 327                 case HOST_TWITTER:
 328                         curl_easy_setopt(curl, CURLOPT_URL, twitter_update_url);
 329                         break;
 330                 case HOST_IDENTICA:
 331                         curl_easy_setopt(curl, CURLOPT_URL, identica_update_url);
 332                         break;
 333                 }
 334                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 335
 336                 break;
 337         case ACTION_FRIENDS:
 338                 snprintf(user_password, sizeof(user_password), "%s:%s",
 339                          session->account, session->password);
 340                 switch (session->host) {
 341                 case HOST_TWITTER:
 342                         sprintf(user_url, "%s?page=%d", twitter_friends_url, session->page);
 343                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 344                         break;
 345                 case HOST_IDENTICA:
 346                         sprintf(user_url, "%s?page=%d", identica_friends_url, session->page);
 347                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 348                         break;
 349                 }
 350                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 351
 352                 break;
 353         case ACTION_USER:
 354                 switch (session->host) {
 355                 case HOST_TWITTER:
 356                         sprintf(user_url, "%s%s.xml?page=%d", twitter_user_url, session->user, session->page);
 357                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 358                         break;
 359                 case HOST_IDENTICA:
 360                         sprintf(user_url, "%s%s.xml?page=%d", identica_user_url, session->user, session->page);
 361                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 362                         break;
 363                 }
 364
 365                 break;
 366         case ACTION_REPLIES:
 367                 snprintf(user_password, sizeof(user_password), "%s:%s",
 368                          session->account, session->password);
 369                 switch (session->host) {
 370                 case HOST_TWITTER:
 371                         sprintf(user_url, "%s?page=%d", twitter_replies_url, session->page);
 372                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 373                         break;
 374                 case HOST_IDENTICA:
 375                         sprintf(user_url, "%s?page=%d", identica_replies_url, session->page);
 376                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 377                         break;
 378                 }
 379                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 380
 381                 break;
 382         case ACTION_PUBLIC:
 383                 switch (session->host) {
 384                 case HOST_TWITTER:
 385                         sprintf(user_url, "%s?page=%d", twitter_public_url, session->page);
 386                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 387                         break;
 388                 case HOST_IDENTICA:
 389                         sprintf(user_url, "%s?page=%d", identica_public_url, session->page);
 390                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 391                         break;
 392                 }
 393
 394                 break;
 395         default:
 396                 break;
 397         }
 398
 399         if (session->proxy)
 400                 curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy);
 401
 402         if (debug)
 403                 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
 404
 405         dbg("user_password = %s\n", user_password);
 406         dbg("data = %s\n", data);
 407         dbg("proxy = %s\n", session->proxy);
 408
 409         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
 410         curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
 411         res = curl_easy_perform(curl);
 412         if (res && !session->bash) {
 413                 fprintf(stderr, "error(%d) trying to perform operation\n", res);
 414                 return -EINVAL;
 415         }
 416
 417         curl_easy_cleanup(curl);
 418         if (session->action == ACTION_UPDATE)
 419                 curl_formfree(formpost);
 420         bti_curl_buffer_free(curl_buf);
 421         return 0;
 422 }
 423
 424 static void parse_configfile(struct session *session)
 425 {
 426         FILE *config_file;
 427         char *line = NULL;
 428         size_t len = 0;
 429         char *account = NULL;
 430         char *password = NULL;
 431         char *host = NULL;
 432         char *proxy = NULL;
 433         char *logfile = NULL;
 434         char *action = NULL;
 435         char *user = NULL;
 436         char *file;
 437
 438         /* config file is ~/.bti  */
 439         file = alloca(strlen(session->homedir) + 7);
 440
 441         sprintf(file, "%s/.bti", session->homedir);
 442
 443         config_file = fopen(file, "r");
 444
 445         /* No error if file does not exist or is unreadable.  */
 446         if (config_file == NULL)
 447                 return;
 448
 449         do {
 450                 ssize_t n = getline(&line, &len, config_file);
 451                 if (n < 0)
 452                         break;
 453                 if (line[n - 1] == '\n')
 454                         line[n - 1] = '\0';
 455                 /* Parse file.  Format is the usual value pairs:
 456                    account=name
 457                    passwort=value
 458                    # is a comment character
 459                 */
 460                 *strchrnul(line, '#') = '\0';
 461                 char *c = line;
 462                 while (isspace(*c))
 463                         c++;
 464                 /* Ignore blank lines.  */
 465                 if (c[0] == '\0')
 466                         continue;
 467
 468                 if (!strncasecmp(c, "account", 7) && (c[7] == '=')) {
 469                         c += 8;
 470                         if (c[0] != '\0')
 471                                 account = strdup(c);
 472                 } else if (!strncasecmp(c, "password", 8) &&
 473                            (c[8] == '=')) {
 474                         c += 9;
 475                         if (c[0] != '\0')
 476                                 password = strdup(c);
 477                 } else if (!strncasecmp(c, "host", 4) &&
 478                            (c[4] == '=')) {
 479                         c += 5;
 480                         if (c[0] != '\0')
 481                                 host = strdup(c);
 482                 } else if (!strncasecmp(c, "proxy", 5) &&
 483                            (c[5] == '=')) {
 484                         c += 6;
 485                         if (c[0] != '\0')
 486                                 proxy = strdup(c);
 487                 } else if (!strncasecmp(c, "logfile", 7) &&
 488                            (c[7] == '=')) {
 489                         c += 8;
 490                         if (c[0] != '\0')
 491                                 logfile = strdup(c);
 492                 } else if (!strncasecmp(c, "action", 6) &&
 493                            (c[6] == '=')) {
 494                         c += 7;
 495                         if (c[0] != '\0')
 496                                 action = strdup(c);
 497                 } else if (!strncasecmp(c, "user", 4) &&
 498                                 (c[4] == '=')) {
 499                         c += 5;
 500                         if (c[0] != '\0')
 501                                 user = strdup(c);
 502                 }
 503         } while (!feof(config_file));
 504
 505         if (password)
 506                 session->password = password;
 507         if (account)
 508                 session->account = account;
 509         if (host) {
 510                 if (strcasecmp(host, "twitter") == 0)
 511                         session->host = HOST_TWITTER;
 512                 if (strcasecmp(host, "identica") == 0)
 513                         session->host = HOST_IDENTICA;
 514                 free(host);
 515         }
 516         if (proxy) {
 517                 if (session->proxy)
 518                         free(session->proxy);
 519                 session->proxy = proxy;
 520         }
 521         if (logfile)
 522                 session->logfile = logfile;
 523         if (action) {
 524                 if (strcasecmp(action, "update") == 0)
 525                         session->action = ACTION_UPDATE;
 526                 else if (strcasecmp(action, "friends") == 0)
 527                         session->action = ACTION_FRIENDS;
 528                 else if (strcasecmp(action, "user") == 0)
 529                         session->action = ACTION_USER;
 530                 else if (strcasecmp(action, "replies") == 0)
 531                         session->action = ACTION_REPLIES;
 532                 else if (strcasecmp(action, "public") == 0)
 533                         session->action = ACTION_PUBLIC;
 534                 else
 535                         session->action = ACTION_UNKNOWN;
 536                 free(action);
 537         }
 538         if (user) {
 539                 session->user = user;
 540         }
 541
 542         /* Free buffer and close file.  */
 543         free(line);
 544         fclose(config_file);
 545 }
 546
 547 static void log_session(struct session *session, int retval)
 548 {
 549         FILE *log_file;
 550         char *filename;
 551         char *host;
 552
 553         /* Only log something if we have a log file set */
 554         if (!session->logfile)
 555                 return;
 556
 557         filename = alloca(strlen(session->homedir) +
 558                           strlen(session->logfile) + 3);
 559
 560         sprintf(filename, "%s/%s", session->homedir, session->logfile);
 561
 562         log_file = fopen(filename, "a+");
 563         if (log_file == NULL)
 564                 return;
 565         switch (session->host) {
 566         case HOST_TWITTER:
 567                 host = "twitter";
 568                 break;
 569         case HOST_IDENTICA:
 570                 host = "identi.ca";
 571                 break;
 572         default:
 573                 host = "unknown";
 574                 break;
 575         }
 576
 577         switch (session->action) {
 578         case ACTION_UPDATE:
 579                 if (retval)
 580                         fprintf(log_file, "%s: host=%s tweet failed\n",
 581                                 session->time, host);
 582                 else
 583                         fprintf(log_file, "%s: host=%s tweet=%s\n",
 584                                 session->time, host, session->tweet);
 585                 break;
 586         case ACTION_FRIENDS:
 587                 fprintf(log_file, "%s: host=%s retrieving friends timeline\n",
 588                         session->time, host);
 589                 break;
 590         case ACTION_USER:
 591                 fprintf(log_file, "%s: host=%s retrieving %s's timeline\n",
 592                         session->time, host, session->user);
 593                 break;
 594         case ACTION_REPLIES:
 595                 fprintf(log_file, "%s: host=%s retrieving replies\n",
 596                         session->time, host);
 597                 break;
 598         case ACTION_PUBLIC:
 599                 fprintf(log_file, "%s: host=%s retrieving public timeline\n",
 600                         session->time, host);
 601                 break;
 602         default:
 603                 break;
 604         }
 605
 606         fclose(log_file);
 607 }
 608
 609 static char *get_string_from_stdin(void)
 610 {
 611         char *temp;
 612         char *string;
 613
 614         string = zalloc(1000);
 615         if (!string)
 616                 return NULL;
 617
 618         if (!fgets(string, 999, stdin))
 619                 return NULL;
 620         temp = strchr(string, '\n');
 621         *temp = '\0';
 622         return string;
 623 }
 624
 625 int main(int argc, char *argv[], char *envp[])
 626 {
 627         static const struct option options[] = {
 628                 { "debug", 0, NULL, 'd' },
 629                 { "account", 1, NULL, 'a' },
 630                 { "password", 1, NULL, 'p' },
 631                 { "host", 1, NULL, 'H' },
 632                 { "proxy", 1, NULL, 'P' },
 633                 { "action", 1, NULL, 'A' },
 634                 { "user", 1, NULL, 'u' },
 635                 { "logfile", 1, NULL, 'L' },
 636                 { "help", 0, NULL, 'h' },
 637                 { "bash", 0, NULL, 'b' },
 638                 { "page", 1, NULL, 'g' },
 639                 { "version", 0, NULL, 'v' },
 640                 { }
 641         };
 642         struct session *session;
 643         pid_t child;
 644         char *tweet;
 645         int retval = 0;
 646         int option;
 647         char *http_proxy;
 648         time_t t;
 649         int page_nr;
 650
 651         debug = 0;
 652         rl_bind_key('\t', rl_insert);
 653
 654         session = session_alloc();
 655         if (!session) {
 656                 fprintf(stderr, "no more memory...\n");
 657                 return -1;
 658         }
 659
 660         /* get the current time so that we can log it later */
 661         time(&t);
 662         session->time = strdup(ctime(&t));
 663         session->time[strlen(session->time)-1] = 0x00;
 664
 665         session->homedir = strdup(getenv("HOME"));
 666
 667         curl_global_init(CURL_GLOBAL_ALL);
 668
 669         /* Set environment variables first, before reading command line options
 670          * or config file values. */
 671         http_proxy = getenv("http_proxy");
 672         if (http_proxy) {
 673                 if (session->proxy)
 674                         free(session->proxy);
 675                 session->proxy = strdup(http_proxy);
 676                 dbg("http_proxy = %s\n", session->proxy);
 677         }
 678
 679         parse_configfile(session);
 680
 681         while (1) {
 682                 option = getopt_long_only(argc, argv, "dqe:p:P:H:a:A:u:hg:",
 683                                           options, NULL);
 684                 if (option == -1)
 685                         break;
 686                 switch (option) {
 687                 case 'd':
 688                         debug = 1;
 689                         break;
 690                 case 'a':
 691                         if (session->account)
 692                                 free(session->account);
 693                         session->account = strdup(optarg);
 694                         dbg("account = %s\n", session->account);
 695                         break;
 696                 case 'g':
 697                         page_nr = atoi(optarg);
 698                         dbg("page = %d\n", page_nr);
 699                         session->page = page_nr;
 700                         break;
 701                 case 'p':
 702                         if (session->password)
 703                                 free(session->password);
 704                         session->password = strdup(optarg);
 705                         dbg("password = %s\n", session->password);
 706                         break;
 707                 case 'P':
 708                         if (session->proxy)
 709                                 free(session->proxy);
 710                         session->proxy = strdup(optarg);
 711                         dbg("proxy = %s\n", session->proxy);
 712                         break;
 713                 case 'A':
 714                         if (strcasecmp(optarg, "update") == 0)
 715                                 session->action = ACTION_UPDATE;
 716                         else if (strcasecmp(optarg, "friends") == 0)
 717                                 session->action = ACTION_FRIENDS;
 718                         else if (strcasecmp(optarg, "user") == 0)
 719                                 session->action = ACTION_USER;
 720                         else if (strcasecmp(optarg, "replies") == 0)
 721                                 session->action = ACTION_REPLIES;
 722                         else if (strcasecmp(optarg, "public") == 0)
 723                                 session->action = ACTION_PUBLIC;
 724                         else
 725                                 session->action = ACTION_UNKNOWN;
 726                         dbg("action = %d\n", session->action);
 727                         break;
 728                 case 'u':
 729                         if (session->user)
 730                                 free(session->user);
 731                         session->user = strdup(optarg);
 732                         dbg("user = %s\n", session->user);
 733                         break;
 734                 case 'L':
 735                         if (session->logfile)
 736                                 free(session->logfile);
 737                         session->logfile = strdup(optarg);
 738                         dbg("logfile = %s\n", session->logfile);
 739                         break;
 740                 case 'H':
 741                         if (strcasecmp(optarg, "twitter") == 0)
 742                                 session->host = HOST_TWITTER;
 743                         if (strcasecmp(optarg, "identica") == 0)
 744                                 session->host = HOST_IDENTICA;
 745                         dbg("host = %d\n", session->host);
 746                         break;
 747                 case 'b':
 748                         session->bash = 1;
 749                         break;
 750                 case 'h':
 751                         display_help();
 752                         goto exit;
 753                 case 'v':
 754                         display_version();
 755                         goto exit;
 756                 default:
 757                         display_help();
 758                         goto exit;
 759                 }
 760         }
 761
 762         if (session->action == ACTION_UNKNOWN) {
 763                 fprintf(stderr, "Unknown action, valid actions are:\n");
 764                 fprintf(stderr, "'update', 'friends', 'public', 'replies' or 'user'.\n");
 765                 goto exit;
 766         }
 767
 768         if (!session->account) {
 769                 fprintf(stdout, "Enter twitter account: ");
 770                 session->account = readline(NULL);
 771         }
 772
 773         if (!session->password) {
 774                 fprintf(stdout, "Enter twitter password: ");
 775                 session->password = readline(NULL);
 776         }
 777
 778         if (session->action == ACTION_UPDATE) {
 779                 if (session->bash)
 780                         tweet = get_string_from_stdin();
 781                 else
 782                         tweet = readline("tweet: ");
 783                 if (!tweet || strlen(tweet) == 0) {
 784                         dbg("no tweet?\n");
 785                         return -1;
 786                 }
 787
 788                 session->tweet = zalloc(strlen(tweet) + 10);
 789                 if (session->bash)
 790                         sprintf(session->tweet, "$ %s", tweet);
 791                 else
 792                         sprintf(session->tweet, "%s", tweet);
 793
 794                 free(tweet);
 795                 dbg("tweet = %s\n", session->tweet);
 796         }
 797
 798         if (!session->user)
 799                 session->user = strdup(session->account);
 800
 801         if (session->page == 0)
 802                 session->page = 1;
 803         dbg("account = %s\n", session->account);
 804         dbg("password = %s\n", session->password);
 805         dbg("host = %d\n", session->host);
 806         dbg("action = %d\n", session->action);
 807
 808         /* fork ourself so that the main shell can get on
 809          * with it's life as we try to connect and handle everything
 810          */
 811         if (session->bash) {
 812                 child = fork();
 813                 if (child) {
 814                         dbg("child is %d\n", child);
 815                         exit(0);
 816                 }
 817         }
 818
 819         retval = send_request(session);
 820         if (retval && !session->bash)
 821                 fprintf(stderr, "operation failed\n");
 822
 823         log_session(session, retval);
 824 exit:
 825         session_free(session);
 826         return retval;;
 827 }