| 1 |
/* |
| 2 |
* Copyright (C) 2008-2010 Greg Kroah-Hartman <greg@kroah.com> |
| 3 |
* Copyright (C) 2009 Bart Trojanowski <bart@jukie.net> |
| 4 |
* Copyright (C) 2009 Amir Mohammad Saied <amirsaied@gmail.com> |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify it |
| 7 |
* under the terms of the GNU General Public License as published by the |
| 8 |
* Free Software Foundation version 2 of the License. |
| 9 |
* |
| 10 |
* This program is distributed in the hope that it will be useful, but |
| 11 |
* WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 |
* General Public License for more details. |
| 14 |
* |
| 15 |
* You should have received a copy of the GNU General Public License along |
| 16 |
* with this program; if not, write to the Free Software Foundation, Inc., |
| 17 |
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 |
*/ |
| 19 |
|
| 20 |
#define _GNU_SOURCE |
| 21 |
|
| 22 |
#include <stdio.h> |
| 23 |
#include <stdlib.h> |
| 24 |
#include <stddef.h> |
| 25 |
#include <string.h> |
| 26 |
#include <getopt.h> |
| 27 |
#include <errno.h> |
| 28 |
#include <ctype.h> |
| 29 |
#include <fcntl.h> |
| 30 |
#include <unistd.h> |
| 31 |
#include <time.h> |
| 32 |
#include <sys/stat.h> |
| 33 |
#include <sys/types.h> |
| 34 |
#include <sys/wait.h> |
| 35 |
#include <curl/curl.h> |
| 36 |
#include <libxml/xmlmemory.h> |
| 37 |
#include <libxml/parser.h> |
| 38 |
#include <libxml/tree.h> |
| 39 |
#include <pcre.h> |
| 40 |
#include <termios.h> |
| 41 |
#include <dlfcn.h> |
| 42 |
#include <oauth.h> |
| 43 |
|
| 44 |
|
| 45 |
#define zalloc(size) calloc(size, 1) |
| 46 |
|
| 47 |
#define dbg(format, arg...) \ |
| 48 |
do { \ |
| 49 |
if (debug) \ |
| 50 |
fprintf(stdout, "bti: %s: " format , __func__ , \ |
| 51 |
## arg); \ |
| 52 |
} while (0) |
| 53 |
|
| 54 |
|
| 55 |
static int debug; |
| 56 |
static int verbose; |
| 57 |
|
| 58 |
enum host { |
| 59 |
HOST_TWITTER = 0, |
| 60 |
HOST_IDENTICA = 1, |
| 61 |
HOST_CUSTOM = 2 |
| 62 |
}; |
| 63 |
|
| 64 |
enum action { |
| 65 |
ACTION_UPDATE = 0, |
| 66 |
ACTION_FRIENDS = 1, |
| 67 |
ACTION_USER = 2, |
| 68 |
ACTION_REPLIES = 4, |
| 69 |
ACTION_PUBLIC = 8, |
| 70 |
ACTION_GROUP = 16, |
| 71 |
ACTION_UNKNOWN = 32 |
| 72 |
}; |
| 73 |
|
| 74 |
struct session { |
| 75 |
char *password; |
| 76 |
char *account; |
| 77 |
char *consumer_key; |
| 78 |
char *consumer_secret; |
| 79 |
char *access_token_key; |
| 80 |
char *access_token_secret; |
| 81 |
char *tweet; |
| 82 |
char *proxy; |
| 83 |
char *time; |
| 84 |
char *homedir; |
| 85 |
char *logfile; |
| 86 |
char *user; |
| 87 |
char *group; |
| 88 |
char *hosturl; |
| 89 |
char *hostname; |
| 90 |
char *configfile; |
| 91 |
char *replyto; |
| 92 |
int bash; |
| 93 |
int background; |
| 94 |
int interactive; |
| 95 |
int shrink_urls; |
| 96 |
int dry_run; |
| 97 |
int page; |
| 98 |
int no_oauth; |
| 99 |
enum host host; |
| 100 |
enum action action; |
| 101 |
void *readline_handle; |
| 102 |
char *(*readline)(const char *); |
| 103 |
}; |
| 104 |
|
| 105 |
struct bti_curl_buffer { |
| 106 |
char *data; |
| 107 |
enum action action; |
| 108 |
int length; |
| 109 |
}; |
| 110 |
|
| 111 |
static void display_help(void) |
| 112 |
{ |
| 113 |
fprintf(stdout, "bti - send tweet to twitter or identi.ca\n" |
| 114 |
"Version: %s\n" |
| 115 |
"Usage:\n" |
| 116 |
" bti [options]\n" |
| 117 |
"options are:\n" |
| 118 |
" --account accountname\n" |
| 119 |
" --password password\n" |
| 120 |
" --action action\n" |
| 121 |
" ('update', 'friends', 'public', 'replies', or 'user')\n" |
| 122 |
" --user screenname\n" |
| 123 |
" --group groupname\n" |
| 124 |
" --proxy PROXY:PORT\n" |
| 125 |
" --host HOST\n" |
| 126 |
" --logfile logfile\n" |
| 127 |
" --config configfile\n" |
| 128 |
" --replyto ID\n" |
| 129 |
" --shrink-urls\n" |
| 130 |
" --page PAGENUMBER\n" |
| 131 |
" --bash\n" |
| 132 |
" --background\n" |
| 133 |
" --debug\n" |
| 134 |
" --verbose\n" |
| 135 |
" --dry-run\n" |
| 136 |
" --version\n" |
| 137 |
" --help\n", VERSION); |
| 138 |
} |
| 139 |
|
| 140 |
static void display_version(void) |
| 141 |
{ |
| 142 |
fprintf(stdout, "bti - version %s\n", VERSION); |
| 143 |
} |
| 144 |
|
| 145 |
static char *get_string(const char *name) |
| 146 |
{ |
| 147 |
char *temp; |
| 148 |
char *string; |
| 149 |
|
| 150 |
string = zalloc(1000); |
| 151 |
if (!string) |
| 152 |
exit(1); |
| 153 |
if (name != NULL) |
| 154 |
fprintf(stdout, "%s", name); |
| 155 |
if (!fgets(string, 999, stdin)) |
| 156 |
return NULL; |
| 157 |
temp = strchr(string, '\n'); |
| 158 |
if (temp) |
| 159 |
*temp = '\0'; |
| 160 |
return string; |
| 161 |
} |
| 162 |
|
| 163 |
/* |
| 164 |
* Try to get a handle to a readline function from a variety of different |
| 165 |
* libraries. If nothing is present on the system, then fall back to an |
| 166 |
* internal one. |
| 167 |
* |
| 168 |
* Logic originally based off of code in the e2fsutils package in the |
| 169 |
* lib/ss/get_readline.c file, which is licensed under the MIT license. |
| 170 |
* |
| 171 |
* This keeps us from having to relicense the bti codebase if readline |
| 172 |
* ever changes its license, as there is no link-time dependancy. |
| 173 |
* It is a run-time thing only, and we handle any readline-like library |
| 174 |
* in the same manner, making bti not be a derivative work of any |
| 175 |
* other program. |
| 176 |
*/ |
| 177 |
static void session_readline_init(struct session *session) |
| 178 |
{ |
| 179 |
/* Libraries we will try to use for readline/editline functionality */ |
| 180 |
const char *libpath = "libreadline.so.6:libreadline.so.5:" |
| 181 |
"libreadline.so.4:libreadline.so:libedit.so.2:" |
| 182 |
"libedit.so:libeditline.so.0:libeditline.so"; |
| 183 |
void *handle = NULL; |
| 184 |
char *tmp, *cp, *next; |
| 185 |
int (*bind_key)(int, void *); |
| 186 |
void (*insert)(void); |
| 187 |
|
| 188 |
/* default to internal function if we can't or won't find anything */ |
| 189 |
session->readline = get_string; |
| 190 |
if (!isatty(0)) |
| 191 |
return; |
| 192 |
session->interactive = 1; |
| 193 |
|
| 194 |
tmp = malloc(strlen(libpath)+1); |
| 195 |
if (!tmp) |
| 196 |
return; |
| 197 |
strcpy(tmp, libpath); |
| 198 |
for (cp = tmp; cp; cp = next) { |
| 199 |
next = strchr(cp, ':'); |
| 200 |
if (next) |
| 201 |
*next++ = 0; |
| 202 |
if (*cp == 0) |
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continue; |
| 204 |
handle = dlopen(cp, RTLD_NOW); |
| 205 |
if (handle) { |
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dbg("Using %s for readline library\n", cp); |
| 207 |
break; |
| 208 |
} |
| 209 |
} |
| 210 |
free(tmp); |
| 211 |
if (!handle) { |
| 212 |
dbg("No readline library found.\n"); |
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return; |
| 214 |
} |
| 215 |
|
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session->readline_handle = handle; |
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session->readline = (char *(*)(const char *))dlsym(handle, "readline"); |
| 218 |
if (session->readline == NULL) { |
| 219 |
/* something odd happened, default back to internal stuff */ |
| 220 |
session->readline_handle = NULL; |
| 221 |
session->readline = get_string; |
| 222 |
return; |
| 223 |
} |
| 224 |
|
| 225 |
/* |
| 226 |
* If we found a library, turn off filename expansion |
| 227 |
* as that makes no sense from within bti. |
| 228 |
*/ |
| 229 |
bind_key = (int (*)(int, void *))dlsym(handle, "rl_bind_key"); |
| 230 |
insert = (void (*)(void))dlsym(handle, "rl_insert"); |
| 231 |
if (bind_key && insert) |
| 232 |
bind_key('\t', insert); |
| 233 |
} |
| 234 |
|
| 235 |
static void session_readline_cleanup(struct session *session) |
| 236 |
{ |
| 237 |
if (session->readline_handle) |
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dlclose(session->readline_handle); |
| 239 |
} |
| 240 |
|
| 241 |
static struct session *session_alloc(void) |
| 242 |
{ |
| 243 |
struct session *session; |
| 244 |
|
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session = zalloc(sizeof(*session)); |
| 246 |
if (!session) |
| 247 |
return NULL; |
| 248 |
return session; |
| 249 |
} |
| 250 |
|
| 251 |
static void session_free(struct session *session) |
| 252 |
{ |
| 253 |
if (!session) |
| 254 |
return; |
| 255 |
free(session->replyto); |
| 256 |
free(session->password); |
| 257 |
free(session->account); |
| 258 |
free(session->consumer_key); |
| 259 |
free(session->consumer_secret); |
| 260 |
free(session->access_token_key); |
| 261 |
free(session->access_token_secret); |
| 262 |
free(session->tweet); |
| 263 |
free(session->proxy); |
| 264 |
free(session->time); |
| 265 |
free(session->homedir); |
| 266 |
free(session->user); |
| 267 |
free(session->group); |
| 268 |
free(session->hosturl); |
| 269 |
free(session->hostname); |
| 270 |
free(session->configfile); |
| 271 |
free(session); |
| 272 |
} |
| 273 |
|
| 274 |
static struct bti_curl_buffer *bti_curl_buffer_alloc(enum action action) |
| 275 |
{ |
| 276 |
struct bti_curl_buffer *buffer; |
| 277 |
|
| 278 |
buffer = zalloc(sizeof(*buffer)); |
| 279 |
if (!buffer) |
| 280 |
return NULL; |
| 281 |
|
| 282 |
/* start out with a data buffer of 1 byte to |
| 283 |
* make the buffer fill logic simpler */ |
| 284 |
buffer->data = zalloc(1); |
| 285 |
if (!buffer->data) { |
| 286 |
free(buffer); |
| 287 |
return NULL; |
| 288 |
} |
| 289 |
buffer->length = 0; |
| 290 |
buffer->action = action; |
| 291 |
return buffer; |
| 292 |
} |
| 293 |
|
| 294 |
static void bti_curl_buffer_free(struct bti_curl_buffer *buffer) |
| 295 |
{ |
| 296 |
if (!buffer) |
| 297 |
return; |
| 298 |
free(buffer->data); |
| 299 |
free(buffer); |
| 300 |
} |
| 301 |
|
| 302 |
static const char twitter_host[] = "http://api.twitter.com/1/statuses"; |
| 303 |
static const char identica_host[] = "https://identi.ca/api/statuses"; |
| 304 |
static const char twitter_name[] = "twitter"; |
| 305 |
static const char identica_name[] = "identi.ca"; |
| 306 |
|
| 307 |
static const char twitter_request_token_uri[] = "http://twitter.com/oauth/request_token"; |
| 308 |
static const char twitter_access_token_uri[] = "http://twitter.com/oauth/access_token"; |
| 309 |
static const char twitter_authorize_uri[] = "http://twitter.com/oauth/authorize?oauth_token="; |
| 310 |
static const char identica_request_token_uri[] = "http://identi.ca/api/oauth/request_token"; |
| 311 |
static const char identica_access_token_uri[] = "http://identi.ca/api/oauth/access_token"; |
| 312 |
static const char identica_authorize_uri[] = "http://identi.ca/api/oauth/authorize?oauth_token="; |
| 313 |
|
| 314 |
static const char user_uri[] = "/user_timeline/"; |
| 315 |
static const char update_uri[] = "/update.xml"; |
| 316 |
static const char public_uri[] = "/public_timeline.xml"; |
| 317 |
static const char friends_uri[] = "/friends_timeline.xml"; |
| 318 |
static const char mentions_uri[] = "/mentions.xml"; |
| 319 |
static const char replies_uri[] = "/replies.xml"; |
| 320 |
static const char group_uri[] = "/../statusnet/groups/timeline/"; |
| 321 |
|
| 322 |
static CURL *curl_init(void) |
| 323 |
{ |
| 324 |
CURL *curl; |
| 325 |
|
| 326 |
curl = curl_easy_init(); |
| 327 |
if (!curl) { |
| 328 |
fprintf(stderr, "Can not init CURL!\n"); |
| 329 |
return NULL; |
| 330 |
} |
| 331 |
/* some ssl sanity checks on the connection we are making */ |
| 332 |
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0); |
| 333 |
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0); |
| 334 |
return curl; |
| 335 |
} |
| 336 |
|
| 337 |
static void parse_statuses(xmlDocPtr doc, xmlNodePtr current) |
| 338 |
{ |
| 339 |
xmlChar *text = NULL; |
| 340 |
xmlChar *user = NULL; |
| 341 |
xmlChar *created = NULL; |
| 342 |
xmlChar *id = NULL; |
| 343 |
xmlNodePtr userinfo; |
| 344 |
|
| 345 |
current = current->xmlChildrenNode; |
| 346 |
while (current != NULL) { |
| 347 |
if (current->type == XML_ELEMENT_NODE) { |
| 348 |
if (!xmlStrcmp(current->name, (const xmlChar *)"created_at")) |
| 349 |
created = xmlNodeListGetString(doc, current->xmlChildrenNode, 1); |
| 350 |
if (!xmlStrcmp(current->name, (const xmlChar *)"text")) |
| 351 |
text = xmlNodeListGetString(doc, current->xmlChildrenNode, 1); |
| 352 |
if (!xmlStrcmp(current->name, (const xmlChar *)"id")) |
| 353 |
id = xmlNodeListGetString(doc, current->xmlChildrenNode, 1); |
| 354 |
if (!xmlStrcmp(current->name, (const xmlChar *)"user")) { |
| 355 |
userinfo = current->xmlChildrenNode; |
| 356 |
while (userinfo != NULL) { |
| 357 |
if ((!xmlStrcmp(userinfo->name, (const xmlChar *)"screen_name"))) { |
| 358 |
if (user) |
| 359 |
xmlFree(user); |
| 360 |
user = xmlNodeListGetString(doc, userinfo->xmlChildrenNode, 1); |
| 361 |
} |
| 362 |
userinfo = userinfo->next; |
| 363 |
} |
| 364 |
} |
| 365 |
|
| 366 |
if (user && text && created && id) { |
| 367 |
if (verbose) |
| 368 |
printf("[%s] {%s} (%.16s) %s\n", |
| 369 |
user, id, created, text); |
| 370 |
else |
| 371 |
printf("[%s] %s\n", |
| 372 |
user, text); |
| 373 |
xmlFree(user); |
| 374 |
xmlFree(text); |
| 375 |
xmlFree(created); |
| 376 |
xmlFree(id); |
| 377 |
user = NULL; |
| 378 |
text = NULL; |
| 379 |
created = NULL; |
| 380 |
id = NULL; |
| 381 |
} |
| 382 |
} |
| 383 |
current = current->next; |
| 384 |
} |
| 385 |
|
| 386 |
return; |
| 387 |
} |
| 388 |
|
| 389 |
static void parse_timeline(char *document) |
| 390 |
{ |
| 391 |
xmlDocPtr doc; |
| 392 |
xmlNodePtr current; |
| 393 |
|
| 394 |
doc = xmlReadMemory(document, strlen(document), "timeline.xml", |
| 395 |
NULL, XML_PARSE_NOERROR); |
| 396 |
if (doc == NULL) |
| 397 |
return; |
| 398 |
|
| 399 |
current = xmlDocGetRootElement(doc); |
| 400 |
if (current == NULL) { |
| 401 |
fprintf(stderr, "empty document\n"); |
| 402 |
xmlFreeDoc(doc); |
| 403 |
return; |
| 404 |
} |
| 405 |
|
| 406 |
if (xmlStrcmp(current->name, (const xmlChar *) "statuses")) { |
| 407 |
fprintf(stderr, "unexpected document type\n"); |
| 408 |
xmlFreeDoc(doc); |
| 409 |
return; |
| 410 |
} |
| 411 |
|
| 412 |
current = current->xmlChildrenNode; |
| 413 |
while (current != NULL) { |
| 414 |
if ((!xmlStrcmp(current->name, (const xmlChar *)"status"))) |
| 415 |
parse_statuses(doc, current); |
| 416 |
current = current->next; |
| 417 |
} |
| 418 |
xmlFreeDoc(doc); |
| 419 |
|
| 420 |
return; |
| 421 |
} |
| 422 |
|
| 423 |
static size_t curl_callback(void *buffer, size_t size, size_t nmemb, |
| 424 |
void *userp) |
| 425 |
{ |
| 426 |
struct bti_curl_buffer *curl_buf = userp; |
| 427 |
size_t buffer_size = size * nmemb; |
| 428 |
char *temp; |
| 429 |
|
| 430 |
if ((!buffer) || (!buffer_size) || (!curl_buf)) |
| 431 |
return -EINVAL; |
| 432 |
|
| 433 |
/* add to the data we already have */ |
| 434 |
temp = zalloc(curl_buf->length + buffer_size + 1); |
| 435 |
if (!temp) |
| 436 |
return -ENOMEM; |
| 437 |
|
| 438 |
memcpy(temp, curl_buf->data, curl_buf->length); |
| 439 |
free(curl_buf->data); |
| 440 |
curl_buf->data = temp; |
| 441 |
memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size); |
| 442 |
curl_buf->length += buffer_size; |
| 443 |
if (curl_buf->action) |
| 444 |
parse_timeline(curl_buf->data); |
| 445 |
|
| 446 |
dbg("%s\n", curl_buf->data); |
| 447 |
|
| 448 |
return buffer_size; |
| 449 |
} |
| 450 |
|
| 451 |
static int parse_osp_reply(const char *reply, char **token, char **secret) |
| 452 |
{ |
| 453 |
int rc; |
| 454 |
int retval = 1; |
| 455 |
char **rv = NULL; |
| 456 |
rc = oauth_split_url_parameters(reply, &rv); |
| 457 |
qsort(rv, rc, sizeof(char *), oauth_cmpstringp); |
| 458 |
if (rc == 2 || rc == 4) { |
| 459 |
if (!strncmp(rv[0], "oauth_token=", 11) && |
| 460 |
!strncmp(rv[1], "oauth_token_secret=", 18)) { |
| 461 |
if (token) |
| 462 |
*token = strdup(&(rv[0][12])); |
| 463 |
if (secret) |
| 464 |
*secret = strdup(&(rv[1][19])); |
| 465 |
|
| 466 |
retval = 0; |
| 467 |
} |
| 468 |
} else if (rc == 3) { |
| 469 |
if (!strncmp(rv[1], "oauth_token=", 11) && |
| 470 |
!strncmp(rv[2], "oauth_token_secret=", 18)) { |
| 471 |
if (token) |
| 472 |
*token = strdup(&(rv[1][12])); |
| 473 |
if (secret) |
| 474 |
*secret = strdup(&(rv[2][19])); |
| 475 |
|
| 476 |
retval = 0; |
| 477 |
} |
| 478 |
} |
| 479 |
|
| 480 |
dbg("token: %s\n", *token); |
| 481 |
dbg("secret: %s\n", *secret); |
| 482 |
|
| 483 |
if (rv) |
| 484 |
free(rv); |
| 485 |
|
| 486 |
return retval; |
| 487 |
} |
| 488 |
|
| 489 |
static int request_access_token(struct session *session) |
| 490 |
{ |
| 491 |
char *post_params = NULL; |
| 492 |
char *request_url = NULL; |
| 493 |
char *reply = NULL; |
| 494 |
char *at_key = NULL; |
| 495 |
char *at_secret = NULL; |
| 496 |
char *verifier = NULL; |
| 497 |
char at_uri[90]; |
| 498 |
|
| 499 |
if (!session) |
| 500 |
return -EINVAL; |
| 501 |
|
| 502 |
if (session->host == HOST_TWITTER) |
| 503 |
request_url = oauth_sign_url2( |
| 504 |
twitter_request_token_uri, NULL, |
| 505 |
OA_HMAC, NULL, session->consumer_key, |
| 506 |
session->consumer_secret, NULL, NULL); |
| 507 |
else if (session->host == HOST_IDENTICA) |
| 508 |
request_url = oauth_sign_url2( |
| 509 |
identica_request_token_uri, NULL, |
| 510 |
OA_HMAC, NULL, session->consumer_key, |
| 511 |
session->consumer_secret, NULL, NULL); |
| 512 |
reply = oauth_http_get(request_url, post_params); |
| 513 |
|
| 514 |
if (request_url) |
| 515 |
free(request_url); |
| 516 |
|
| 517 |
if (post_params) |
| 518 |
free(post_params); |
| 519 |
|
| 520 |
if (!reply) |
| 521 |
return 1; |
| 522 |
|
| 523 |
if (parse_osp_reply(reply, &at_key, &at_secret)) |
| 524 |
return 1; |
| 525 |
|
| 526 |
free(reply); |
| 527 |
|
| 528 |
fprintf(stdout, |
| 529 |
"Please open the following link in your browser, and " |
| 530 |
"allow 'bti' to access your account. Then paste " |
| 531 |
"back the provided PIN in here.\n"); |
| 532 |
if (session->host == HOST_TWITTER) { |
| 533 |
fprintf(stdout, "%s%s\nPIN: ", twitter_authorize_uri, at_key); |
| 534 |
verifier = session->readline(NULL); |
| 535 |
sprintf(at_uri, "%s?oauth_verifier=%s", |
| 536 |
twitter_access_token_uri, verifier); |
| 537 |
} else if (session->host == HOST_IDENTICA) { |
| 538 |
fprintf(stdout, "%s%s\nPIN: ", identica_authorize_uri, at_key); |
| 539 |
verifier = session->readline(NULL); |
| 540 |
sprintf(at_uri, "%s?oauth_verifier=%s", |
| 541 |
identica_access_token_uri, verifier); |
| 542 |
} |
| 543 |
request_url = oauth_sign_url2(at_uri, NULL, OA_HMAC, NULL, |
| 544 |
session->consumer_key, |
| 545 |
session->consumer_secret, |
| 546 |
at_key, at_secret); |
| 547 |
reply = oauth_http_get(request_url, post_params); |
| 548 |
|
| 549 |
if (!reply) |
| 550 |
return 1; |
| 551 |
|
| 552 |
if (parse_osp_reply(reply, &at_key, &at_secret)) |
| 553 |
return 1; |
| 554 |
|
| 555 |
free(reply); |
| 556 |
|
| 557 |
fprintf(stdout, |
| 558 |
"Please put these two lines in your bti " |
| 559 |
"configuration file (~/.bti):\n" |
| 560 |
"access_token_key=%s\n" |
| 561 |
"access_token_secret=%s\n", |
| 562 |
at_key, at_secret); |
| 563 |
|
| 564 |
return 0; |
| 565 |
} |
| 566 |
|
| 567 |
static int send_request(struct session *session) |
| 568 |
{ |
| 569 |
char endpoint[500]; |
| 570 |
char user_password[500]; |
| 571 |
char data[500]; |
| 572 |
struct bti_curl_buffer *curl_buf; |
| 573 |
CURL *curl = NULL; |
| 574 |
CURLcode res; |
| 575 |
struct curl_httppost *formpost = NULL; |
| 576 |
struct curl_httppost *lastptr = NULL; |
| 577 |
struct curl_slist *slist = NULL; |
| 578 |
char *req_url = NULL; |
| 579 |
char *reply = NULL; |
| 580 |
char *postarg = NULL; |
| 581 |
char *escaped_tweet = NULL; |
| 582 |
int is_post = 0; |
| 583 |
|
| 584 |
if (!session) |
| 585 |
return -EINVAL; |
| 586 |
|
| 587 |
if (!session->hosturl) |
| 588 |
session->hosturl = strdup(twitter_host); |
| 589 |
|
| 590 |
if (session->no_oauth) { |
| 591 |
curl_buf = bti_curl_buffer_alloc(session->action); |
| 592 |
if (!curl_buf) |
| 593 |
return -ENOMEM; |
| 594 |
|
| 595 |
curl = curl_init(); |
| 596 |
if (!curl) |
| 597 |
return -EINVAL; |
| 598 |
|
| 599 |
if (!session->hosturl) |
| 600 |
session->hosturl = strdup(twitter_host); |
| 601 |
|
| 602 |
switch (session->action) { |
| 603 |
case ACTION_UPDATE: |
| 604 |
snprintf(user_password, sizeof(user_password), "%s:%s", |
| 605 |
session->account, session->password); |
| 606 |
snprintf(data, sizeof(data), "status=\"%s\"", |
| 607 |
session->tweet); |
| 608 |
curl_formadd(&formpost, &lastptr, |
| 609 |
CURLFORM_COPYNAME, "status", |
| 610 |
CURLFORM_COPYCONTENTS, session->tweet, |
| 611 |
CURLFORM_END); |
| 612 |
|
| 613 |
curl_formadd(&formpost, &lastptr, |
| 614 |
CURLFORM_COPYNAME, "source", |
| 615 |
CURLFORM_COPYCONTENTS, "bti", |
| 616 |
CURLFORM_END); |
| 617 |
|
| 618 |
if (session->replyto) |
| 619 |
curl_formadd(&formpost, &lastptr, |
| 620 |
CURLFORM_COPYNAME, "in_reply_to_status_id", |
| 621 |
CURLFORM_COPYCONTENTS, session->replyto, |
| 622 |
CURLFORM_END); |
| 623 |
|
| 624 |
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); |
| 625 |
slist = curl_slist_append(slist, "Expect:"); |
| 626 |
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); |
| 627 |
|
| 628 |
sprintf(endpoint, "%s%s", session->hosturl, update_uri); |
| 629 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 630 |
curl_easy_setopt(curl, CURLOPT_USERPWD, user_password); |
| 631 |
break; |
| 632 |
|
| 633 |
case ACTION_FRIENDS: |
| 634 |
snprintf(user_password, sizeof(user_password), "%s:%s", |
| 635 |
session->account, session->password); |
| 636 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 637 |
friends_uri, session->page); |
| 638 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 639 |
curl_easy_setopt(curl, CURLOPT_USERPWD, user_password); |
| 640 |
break; |
| 641 |
|
| 642 |
case ACTION_USER: |
| 643 |
sprintf(endpoint, "%s%s%s.xml?page=%d", session->hosturl, |
| 644 |
user_uri, session->user, session->page); |
| 645 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 646 |
break; |
| 647 |
|
| 648 |
case ACTION_REPLIES: |
| 649 |
snprintf(user_password, sizeof(user_password), "%s:%s", |
| 650 |
session->account, session->password); |
| 651 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 652 |
replies_uri, session->page); |
| 653 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 654 |
curl_easy_setopt(curl, CURLOPT_USERPWD, user_password); |
| 655 |
break; |
| 656 |
|
| 657 |
case ACTION_PUBLIC: |
| 658 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 659 |
public_uri, session->page); |
| 660 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 661 |
break; |
| 662 |
|
| 663 |
case ACTION_GROUP: |
| 664 |
sprintf(endpoint, "%s%s%s.xml?page=%d", |
| 665 |
session->hosturl, group_uri, session->group, |
| 666 |
session->page); |
| 667 |
curl_easy_setopt(curl, CURLOPT_URL, endpoint); |
| 668 |
break; |
| 669 |
|
| 670 |
default: |
| 671 |
break; |
| 672 |
} |
| 673 |
|
| 674 |
if (session->proxy) |
| 675 |
curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy); |
| 676 |
|
| 677 |
if (debug) |
| 678 |
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); |
| 679 |
|
| 680 |
dbg("user_password = %s\n", user_password); |
| 681 |
dbg("data = %s\n", data); |
| 682 |
dbg("proxy = %s\n", session->proxy); |
| 683 |
|
| 684 |
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback); |
| 685 |
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf); |
| 686 |
if (!session->dry_run) { |
| 687 |
res = curl_easy_perform(curl); |
| 688 |
if (res && !session->background) { |
| 689 |
fprintf(stderr, "error(%d) trying to perform " |
| 690 |
"operation\n", res); |
| 691 |
return -EINVAL; |
| 692 |
} |
| 693 |
} |
| 694 |
|
| 695 |
curl_easy_cleanup(curl); |
| 696 |
if (session->action == ACTION_UPDATE) |
| 697 |
curl_formfree(formpost); |
| 698 |
bti_curl_buffer_free(curl_buf); |
| 699 |
} else { |
| 700 |
switch (session->action) { |
| 701 |
case ACTION_UPDATE: |
| 702 |
escaped_tweet = oauth_url_escape(session->tweet); |
| 703 |
sprintf(endpoint, "%s%s?status=%s", session->hosturl, |
| 704 |
update_uri, escaped_tweet); |
| 705 |
is_post = 1; |
| 706 |
break; |
| 707 |
case ACTION_USER: |
| 708 |
sprintf(endpoint, "%s%s%s.xml?page=%d", |
| 709 |
session->hosturl, user_uri, session->user, |
| 710 |
session->page); |
| 711 |
break; |
| 712 |
case ACTION_REPLIES: |
| 713 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 714 |
mentions_uri, session->page); |
| 715 |
break; |
| 716 |
case ACTION_PUBLIC: |
| 717 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 718 |
public_uri, session->page); |
| 719 |
break; |
| 720 |
case ACTION_GROUP: |
| 721 |
sprintf(endpoint, "%s%s%s.xml?page=%d", |
| 722 |
session->hosturl, group_uri, session->group, |
| 723 |
session->page); |
| 724 |
break; |
| 725 |
case ACTION_FRIENDS: |
| 726 |
sprintf(endpoint, "%s%s?page=%d", session->hosturl, |
| 727 |
friends_uri, session->page); |
| 728 |
break; |
| 729 |
default: |
| 730 |
break; |
| 731 |
} |
| 732 |
|
| 733 |
if (is_post) { |
| 734 |
req_url = oauth_sign_url2(endpoint, &postarg, OA_HMAC, |
| 735 |
NULL, session->consumer_key, |
| 736 |
session->consumer_secret, |
| 737 |
session->access_token_key, |
| 738 |
session->access_token_secret); |
| 739 |
reply = oauth_http_post(req_url, postarg); |
| 740 |
} else { |
| 741 |
req_url = oauth_sign_url2(endpoint, NULL, OA_HMAC, NULL, |
| 742 |
session->consumer_key, |
| 743 |
session->consumer_secret, |
| 744 |
session->access_token_key, |
| 745 |
session->access_token_secret); |
| 746 |
reply = oauth_http_get(req_url, postarg); |
| 747 |
} |
| 748 |
|
| 749 |
dbg("%s\n", req_url); |
| 750 |
dbg("%s\n", reply); |
| 751 |
if (req_url) |
| 752 |
free(req_url); |
| 753 |
|
| 754 |
if (session->action != ACTION_UPDATE) |
| 755 |
parse_timeline(reply); |
| 756 |
} |
| 757 |
return 0; |
| 758 |
} |
| 759 |
|
| 760 |
static void parse_configfile(struct session *session) |
| 761 |
{ |
| 762 |
FILE *config_file; |
| 763 |
char *line = NULL; |
| 764 |
size_t len = 0; |
| 765 |
char *account = NULL; |
| 766 |
char *password = NULL; |
| 767 |
char *consumer_key = NULL; |
| 768 |
char *consumer_secret = NULL; |
| 769 |
char *access_token_key = NULL; |
| 770 |
char *access_token_secret = NULL; |
| 771 |
char *host = NULL; |
| 772 |
char *proxy = NULL; |
| 773 |
char *logfile = NULL; |
| 774 |
char *action = NULL; |
| 775 |
char *user = NULL; |
| 776 |
char *replyto = NULL; |
| 777 |
int shrink_urls = 0; |
| 778 |
|
| 779 |
config_file = fopen(session->configfile, "r"); |
| 780 |
|
| 781 |
/* No error if file does not exist or is unreadable. */ |
| 782 |
if (config_file == NULL) |
| 783 |
return; |
| 784 |
|
| 785 |
do { |
| 786 |
ssize_t n = getline(&line, &len, config_file); |
| 787 |
if (n < 0) |
| 788 |
break; |
| 789 |
if (line[n - 1] == '\n') |
| 790 |
line[n - 1] = '\0'; |
| 791 |
/* Parse file. Format is the usual value pairs: |
| 792 |
account=name |
| 793 |
passwort=value |
| 794 |
# is a comment character |
| 795 |
*/ |
| 796 |
*strchrnul(line, '#') = '\0'; |
| 797 |
char *c = line; |
| 798 |
while (isspace(*c)) |
| 799 |
c++; |
| 800 |
/* Ignore blank lines. */ |
| 801 |
if (c[0] == '\0') |
| 802 |
continue; |
| 803 |
|
| 804 |
if (!strncasecmp(c, "account", 7) && (c[7] == '=')) { |
| 805 |
c += 8; |
| 806 |
if (c[0] != '\0') |
| 807 |
account = strdup(c); |
| 808 |
} else if (!strncasecmp(c, "password", 8) && |
| 809 |
(c[8] == '=')) { |
| 810 |
c += 9; |
| 811 |
if (c[0] != '\0') |
| 812 |
password = strdup(c); |
| 813 |
} else if (!strncasecmp(c, "consumer_key", 12) && |
| 814 |
(c[12] == '=')) { |
| 815 |
c += 13; |
| 816 |
if (c[0] != '\0') |
| 817 |
consumer_key = strdup(c); |
| 818 |
} else if (!strncasecmp(c, "consumer_secret", 15) && |
| 819 |
(c[15] == '=')) { |
| 820 |
c += 16; |
| 821 |
if (c[0] != '\0') |
| 822 |
consumer_secret = strdup(c); |
| 823 |
} else if (!strncasecmp(c, "access_token_key", 16) && |
| 824 |
(c[16] == '=')) { |
| 825 |
c += 17; |
| 826 |
if (c[0] != '\0') |
| 827 |
access_token_key = strdup(c); |
| 828 |
} else if (!strncasecmp(c, "access_token_secret", 19) && |
| 829 |
(c[19] == '=')) { |
| 830 |
c += 20; |
| 831 |
if (c[0] != '\0') |
| 832 |
access_token_secret = strdup(c); |
| 833 |
} else if (!strncasecmp(c, "host", 4) && |
| 834 |
(c[4] == '=')) { |
| 835 |
c += 5; |
| 836 |
if (c[0] != '\0') |
| 837 |
host = strdup(c); |
| 838 |
} else if (!strncasecmp(c, "proxy", 5) && |
| 839 |
(c[5] == '=')) { |
| 840 |
c += 6; |
| 841 |
if (c[0] != '\0') |
| 842 |
proxy = strdup(c); |
| 843 |
} else if (!strncasecmp(c, "logfile", 7) && |
| 844 |
(c[7] == '=')) { |
| 845 |
c += 8; |
| 846 |
if (c[0] != '\0') |
| 847 |
logfile = strdup(c); |
| 848 |
} else if (!strncasecmp(c, "replyto", 7) && |
| 849 |
(c[7] == '=')) { |
| 850 |
c += 8; |
| 851 |
if (c[0] != '\0') |
| 852 |
replyto = strdup(c); |
| 853 |
} else if (!strncasecmp(c, "action", 6) && |
| 854 |
(c[6] == '=')) { |
| 855 |
c += 7; |
| 856 |
if (c[0] != '\0') |
| 857 |
action = strdup(c); |
| 858 |
} else if (!strncasecmp(c, "user", 4) && |
| 859 |
(c[4] == '=')) { |
| 860 |
c += 5; |
| 861 |
if (c[0] != '\0') |
| 862 |
user = strdup(c); |
| 863 |
} else if (!strncasecmp(c, "shrink-urls", 11) && |
| 864 |
(c[11] == '=')) { |
| 865 |
c += 12; |
| 866 |
if (!strncasecmp(c, "true", 4) || |
| 867 |
!strncasecmp(c, "yes", 3)) |
| 868 |
shrink_urls = 1; |
| 869 |
} else if (!strncasecmp(c, "verbose", 7) && |
| 870 |
(c[7] == '=')) { |
| 871 |
c += 8; |
| 872 |
if (!strncasecmp(c, "true", 4) || |
| 873 |
!strncasecmp(c, "yes", 3)) |
| 874 |
verbose = 1; |
| 875 |
} |
| 876 |
} while (!feof(config_file)); |
| 877 |
|
| 878 |
if (password) |
| 879 |
session->password = password; |
| 880 |
if (account) |
| 881 |
session->account = account; |
| 882 |
if (consumer_key) |
| 883 |
session->consumer_key = consumer_key; |
| 884 |
if (consumer_secret) |
| 885 |
session->consumer_secret = consumer_secret; |
| 886 |
if (access_token_key) |
| 887 |
session->access_token_key = access_token_key; |
| 888 |
if (access_token_secret) |
| 889 |
session->access_token_secret = access_token_secret; |
| 890 |
if (host) { |
| 891 |
if (strcasecmp(host, "twitter") == 0) { |
| 892 |
session->host = HOST_TWITTER; |
| 893 |
session->hosturl = strdup(twitter_host); |
| 894 |
session->hostname = strdup(twitter_name); |
| 895 |
} else if (strcasecmp(host, "identica") == 0) { |
| 896 |
session->host = HOST_IDENTICA; |
| 897 |
session->hosturl = strdup(identica_host); |
| 898 |
session->hostname = strdup(identica_name); |
| 899 |
} else { |
| 900 |
session->host = HOST_CUSTOM; |
| 901 |
session->hosturl = strdup(host); |
| 902 |
session->hostname = strdup(host); |
| 903 |
} |
| 904 |
free(host); |
| 905 |
} |
| 906 |
if (proxy) { |
| 907 |
if (session->proxy) |
| 908 |
free(session->proxy); |
| 909 |
session->proxy = proxy; |
| 910 |
} |
| 911 |
if (logfile) |
| 912 |
session->logfile = logfile; |
| 913 |
if (replyto) |
| 914 |
session->replyto = replyto; |
| 915 |
if (action) { |
| 916 |
if (strcasecmp(action, "update") == 0) |
| 917 |
session->action = ACTION_UPDATE; |
| 918 |
else if (strcasecmp(action, "friends") == 0) |
| 919 |
session->action = ACTION_FRIENDS; |
| 920 |
else if (strcasecmp(action, "user") == 0) |
| 921 |
session->action = ACTION_USER; |
| 922 |
else if (strcasecmp(action, "replies") == 0) |
| 923 |
session->action = ACTION_REPLIES; |
| 924 |
else if (strcasecmp(action, "public") == 0) |
| 925 |
session->action = ACTION_PUBLIC; |
| 926 |
else if (strcasecmp(action, "group") == 0) |
| 927 |
session->action = ACTION_GROUP; |
| 928 |
else |
| 929 |
session->action = ACTION_UNKNOWN; |
| 930 |
free(action); |
| 931 |
} |
| 932 |
if (user) |
| 933 |
session->user = user; |
| 934 |
session->shrink_urls = shrink_urls; |
| 935 |
|
| 936 |
/* Free buffer and close file. */ |
| 937 |
free(line); |
| 938 |
fclose(config_file); |
| 939 |
} |
| 940 |
|
| 941 |
static void log_session(struct session *session, int retval) |
| 942 |
{ |
| 943 |
FILE *log_file; |
| 944 |
char *filename; |
| 945 |
|
| 946 |
/* Only log something if we have a log file set */ |
| 947 |
if (!session->logfile) |
| 948 |
return; |
| 949 |
|
| 950 |
filename = alloca(strlen(session->homedir) + |
| 951 |
strlen(session->logfile) + 3); |
| 952 |
|
| 953 |
sprintf(filename, "%s/%s", session->homedir, session->logfile); |
| 954 |
|
| 955 |
log_file = fopen(filename, "a+"); |
| 956 |
if (log_file == NULL) |
| 957 |
return; |
| 958 |
|
| 959 |
switch (session->action) { |
| 960 |
case ACTION_UPDATE: |
| 961 |
if (retval) |
| 962 |
fprintf(log_file, "%s: host=%s tweet failed\n", |
| 963 |
session->time, session->hostname); |
| 964 |
else |
| 965 |
fprintf(log_file, "%s: host=%s tweet=%s\n", |
| 966 |
session->time, session->hostname, |
| 967 |
session->tweet); |
| 968 |
break; |
| 969 |
case ACTION_FRIENDS: |
| 970 |
fprintf(log_file, "%s: host=%s retrieving friends timeline\n", |
| 971 |
session->time, session->hostname); |
| 972 |
break; |
| 973 |
case ACTION_USER: |
| 974 |
fprintf(log_file, "%s: host=%s retrieving %s's timeline\n", |
| 975 |
session->time, session->hostname, session->user); |
| 976 |
break; |
| 977 |
case ACTION_REPLIES: |
| 978 |
fprintf(log_file, "%s: host=%s retrieving replies\n", |
| 979 |
session->time, session->hostname); |
| 980 |
break; |
| 981 |
case ACTION_PUBLIC: |
| 982 |
fprintf(log_file, "%s: host=%s retrieving public timeline\n", |
| 983 |
session->time, session->hostname); |
| 984 |
break; |
| 985 |
case ACTION_GROUP: |
| 986 |
fprintf(log_file, "%s: host=%s retrieving group timeline\n", |
| 987 |
session->time, session->hostname); |
| 988 |
break; |
| 989 |
default: |
| 990 |
break; |
| 991 |
} |
| 992 |
|
| 993 |
fclose(log_file); |
| 994 |
} |
| 995 |
|
| 996 |
static char *get_string_from_stdin(void) |
| 997 |
{ |
| 998 |
char *temp; |
| 999 |
char *string; |
| 1000 |
|
| 1001 |
string = zalloc(1000); |
| 1002 |
if (!string) |
| 1003 |
return NULL; |
| 1004 |
|
| 1005 |
if (!fgets(string, 999, stdin)) |
| 1006 |
return NULL; |
| 1007 |
temp = strchr(string, '\n'); |
| 1008 |
if (temp) |
| 1009 |
*temp = '\0'; |
| 1010 |
return string; |
| 1011 |
} |
| 1012 |
|
| 1013 |
static void read_password(char *buf, size_t len, char *host) |
| 1014 |
{ |
| 1015 |
char pwd[80]; |
| 1016 |
int retval; |
| 1017 |
struct termios old; |
| 1018 |
struct termios tp; |
| 1019 |
|
| 1020 |
tcgetattr(0, &tp); |
| 1021 |
old = tp; |
| 1022 |
|
| 1023 |
tp.c_lflag &= (~ECHO); |
| 1024 |
tcsetattr(0, TCSANOW, &tp); |
| 1025 |
|
| 1026 |
fprintf(stdout, "Enter password for %s: ", host); |
| 1027 |
fflush(stdout); |
| 1028 |
tcflow(0, TCOOFF); |
| 1029 |
retval = scanf("%79s", pwd); |
| 1030 |
tcflow(0, TCOON); |
| 1031 |
fprintf(stdout, "\n"); |
| 1032 |
|
| 1033 |
tcsetattr(0, TCSANOW, &old); |
| 1034 |
|
| 1035 |
strncpy(buf, pwd, len); |
| 1036 |
buf[len-1] = '\0'; |
| 1037 |
} |
| 1038 |
|
| 1039 |
static int find_urls(const char *tweet, int **pranges) |
| 1040 |
{ |
| 1041 |
/* |
| 1042 |
* magic obtained from |
| 1043 |
* http://www.geekpedia.com/KB65_How-to-validate-an-URL-using-RegEx-in-Csharp.html |
| 1044 |
*/ |
| 1045 |
static const char *re_magic = |
| 1046 |
"(([a-zA-Z][0-9a-zA-Z+\\-\\.]*:)/{1,3}" |
| 1047 |
"[0-9a-zA-Z;/~?:@&=+$\\.\\-_'()%]+)" |
| 1048 |
"(#[0-9a-zA-Z;/?:@&=+$\\.\\-_!~*'()%]+)?"; |
| 1049 |
pcre *re; |
| 1050 |
const char *errptr; |
| 1051 |
int erroffset; |
| 1052 |
int ovector[10] = {0,}; |
| 1053 |
const size_t ovsize = sizeof(ovector)/sizeof(*ovector); |
| 1054 |
int startoffset, tweetlen; |
| 1055 |
int i, rc; |
| 1056 |
int rbound = 10; |
| 1057 |
int rcount = 0; |
| 1058 |
int *ranges = malloc(sizeof(int) * rbound); |
| 1059 |
|
| 1060 |
re = pcre_compile(re_magic, |
| 1061 |
PCRE_NO_AUTO_CAPTURE, |
| 1062 |
&errptr, &erroffset, NULL); |
| 1063 |
if (!re) { |
| 1064 |
fprintf(stderr, "pcre_compile @%u: %s\n", erroffset, errptr); |
| 1065 |
exit(1); |
| 1066 |
} |
| 1067 |
|
| 1068 |
tweetlen = strlen(tweet); |
| 1069 |
for (startoffset = 0; startoffset < tweetlen; ) { |
| 1070 |
|
| 1071 |
rc = pcre_exec(re, NULL, tweet, strlen(tweet), startoffset, 0, |
| 1072 |
ovector, ovsize); |
| 1073 |
if (rc == PCRE_ERROR_NOMATCH) |
| 1074 |
break; |
| 1075 |
|
| 1076 |
if (rc < 0) { |
| 1077 |
fprintf(stderr, "pcre_exec @%u: %s\n", |
| 1078 |
erroffset, errptr); |
| 1079 |
exit(1); |
| 1080 |
} |
| 1081 |
|
| 1082 |
for (i = 0; i < rc; i += 2) { |
| 1083 |
if ((rcount+2) == rbound) { |
| 1084 |
rbound *= 2; |
| 1085 |
ranges = realloc(ranges, sizeof(int) * rbound); |
| 1086 |
} |
| 1087 |
|
| 1088 |
ranges[rcount++] = ovector[i]; |
| 1089 |
ranges[rcount++] = ovector[i+1]; |
| 1090 |
} |
| 1091 |
|
| 1092 |
startoffset = ovector[1]; |
| 1093 |
} |
| 1094 |
|
| 1095 |
pcre_free(re); |
| 1096 |
|
| 1097 |
*pranges = ranges; |
| 1098 |
return rcount; |
| 1099 |
} |
| 1100 |
|
| 1101 |
/** |
| 1102 |
* bidirectional popen() call |
| 1103 |
* |
| 1104 |
* @param rwepipe - int array of size three |
| 1105 |
* @param exe - program to run |
| 1106 |
* @param argv - argument list |
| 1107 |
* @return pid or -1 on error |
| 1108 |
* |
| 1109 |
* The caller passes in an array of three integers (rwepipe), on successful |
| 1110 |
* execution it can then write to element 0 (stdin of exe), and read from |
| 1111 |
* element 1 (stdout) and 2 (stderr). |
| 1112 |
*/ |
| 1113 |
static int popenRWE(int *rwepipe, const char *exe, const char *const argv[]) |
| 1114 |
{ |
| 1115 |
int in[2]; |
| 1116 |
int out[2]; |
| 1117 |
int err[2]; |
| 1118 |
int pid; |
| 1119 |
int rc; |
| 1120 |
|
| 1121 |
rc = pipe(in); |
| 1122 |
if (rc < 0) |
| 1123 |
goto error_in; |
| 1124 |
|
| 1125 |
rc = pipe(out); |
| 1126 |
if (rc < 0) |
| 1127 |
goto error_out; |
| 1128 |
|
| 1129 |
rc = pipe(err); |
| 1130 |
if (rc < 0) |
| 1131 |
goto error_err; |
| 1132 |
|
| 1133 |
pid = fork(); |
| 1134 |
if (pid > 0) { |
| 1135 |
/* parent */ |
| 1136 |
close(in[0]); |
| 1137 |
close(out[1]); |
| 1138 |
close(err[1]); |
| 1139 |
rwepipe[0] = in[1]; |
| 1140 |
rwepipe[1] = out[0]; |
| 1141 |
rwepipe[2] = err[0]; |
| 1142 |
return pid; |
| 1143 |
} else if (pid == 0) { |
| 1144 |
/* child */ |
| 1145 |
close(in[1]); |
| 1146 |
close(out[0]); |
| 1147 |
close(err[0]); |
| 1148 |
close(0); |
| 1149 |
rc = dup(in[0]); |
| 1150 |
close(1); |
| 1151 |
rc = dup(out[1]); |
| 1152 |
close(2); |
| 1153 |
rc = dup(err[1]); |
| 1154 |
|
| 1155 |
execvp(exe, (char **)argv); |
| 1156 |
exit(1); |
| 1157 |
} else |
| 1158 |
goto error_fork; |
| 1159 |
|
| 1160 |
return pid; |
| 1161 |
|
| 1162 |
error_fork: |
| 1163 |
close(err[0]); |
| 1164 |
close(err[1]); |
| 1165 |
error_err: |
| 1166 |
close(out[0]); |
| 1167 |
close(out[1]); |
| 1168 |
error_out: |
| 1169 |
close(in[0]); |
| 1170 |
close(in[1]); |
| 1171 |
error_in: |
| 1172 |
return -1; |
| 1173 |
} |
| 1174 |
|
| 1175 |
static int pcloseRWE(int pid, int *rwepipe) |
| 1176 |
{ |
| 1177 |
int rc, status; |
| 1178 |
close(rwepipe[0]); |
| 1179 |
close(rwepipe[1]); |
| 1180 |
close(rwepipe[2]); |
| 1181 |
rc = waitpid(pid, &status, 0); |
| 1182 |
return status; |
| 1183 |
} |
| 1184 |
|
| 1185 |
static char *shrink_one_url(int *rwepipe, char *big) |
| 1186 |
{ |
| 1187 |
int biglen = strlen(big); |
| 1188 |
char *small; |
| 1189 |
int smalllen; |
| 1190 |
int rc; |
| 1191 |
|
| 1192 |
rc = dprintf(rwepipe[0], "%s\n", big); |
| 1193 |
if (rc < 0) |
| 1194 |
return big; |
| 1195 |
|
| 1196 |
smalllen = biglen + 128; |
| 1197 |
small = malloc(smalllen); |
| 1198 |
if (!small) |
| 1199 |
return big; |
| 1200 |
|
| 1201 |
rc = read(rwepipe[1], small, smalllen); |
| 1202 |
if (rc < 0 || rc > biglen) |
| 1203 |
goto error_free_small; |
| 1204 |
|
| 1205 |
if (strncmp(small, "http://", 7)) |
| 1206 |
goto error_free_small; |
| 1207 |
|
| 1208 |
smalllen = rc; |
| 1209 |
while (smalllen && isspace(small[smalllen-1])) |
| 1210 |
small[--smalllen] = 0; |
| 1211 |
|
| 1212 |
free(big); |
| 1213 |
return small; |
| 1214 |
|
| 1215 |
error_free_small: |
| 1216 |
free(small); |
| 1217 |
return big; |
| 1218 |
} |
| 1219 |
|
| 1220 |
static char *shrink_urls(char *text) |
| 1221 |
{ |
| 1222 |
int *ranges; |
| 1223 |
int rcount; |
| 1224 |
int i; |
| 1225 |
int inofs = 0; |
| 1226 |
int outofs = 0; |
| 1227 |
const char *const shrink_args[] = { |
| 1228 |
"bti-shrink-urls", |
| 1229 |
NULL |
| 1230 |
}; |
| 1231 |
int shrink_pid; |
| 1232 |
int shrink_pipe[3]; |
| 1233 |
int inlen = strlen(text); |
| 1234 |
|
| 1235 |
dbg("before len=%u\n", inlen); |
| 1236 |
|
| 1237 |
shrink_pid = popenRWE(shrink_pipe, shrink_args[0], shrink_args); |
| 1238 |
if (shrink_pid < 0) |
| 1239 |
return text; |
| 1240 |
|
| 1241 |
rcount = find_urls(text, &ranges); |
| 1242 |
if (!rcount) |
| 1243 |
return text; |
| 1244 |
|
| 1245 |
for (i = 0; i < rcount; i += 2) { |
| 1246 |
int url_start = ranges[i]; |
| 1247 |
int url_end = ranges[i+1]; |
| 1248 |
int long_url_len = url_end - url_start; |
| 1249 |
char *url = strndup(text + url_start, long_url_len); |
| 1250 |
int short_url_len; |
| 1251 |
int not_url_len = url_start - inofs; |
| 1252 |
|
| 1253 |
dbg("long url[%u]: %s\n", long_url_len, url); |
| 1254 |
url = shrink_one_url(shrink_pipe, url); |
| 1255 |
short_url_len = url ? strlen(url) : 0; |
| 1256 |
dbg("short url[%u]: %s\n", short_url_len, url); |
| 1257 |
|
| 1258 |
if (!url || short_url_len >= long_url_len) { |
| 1259 |
/* The short url ended up being too long |
| 1260 |
* or unavailable */ |
| 1261 |
if (inofs) { |
| 1262 |
strncpy(text + outofs, text + inofs, |
| 1263 |
not_url_len + long_url_len); |
| 1264 |
} |
| 1265 |
inofs += not_url_len + long_url_len; |
| 1266 |
outofs += not_url_len + long_url_len; |
| 1267 |
|
| 1268 |
} else { |
| 1269 |
/* copy the unmodified block */ |
| 1270 |
strncpy(text + outofs, text + inofs, not_url_len); |
| 1271 |
inofs += not_url_len; |
| 1272 |
outofs += not_url_len; |
| 1273 |
|
| 1274 |
/* copy the new url */ |
| 1275 |
strncpy(text + outofs, url, short_url_len); |
| 1276 |
inofs += long_url_len; |
| 1277 |
outofs += short_url_len; |
| 1278 |
} |
| 1279 |
|
| 1280 |
free(url); |
| 1281 |
} |
| 1282 |
|
| 1283 |
/* copy the last block after the last match */ |
| 1284 |
if (inofs) { |
| 1285 |
int tail = inlen - inofs; |
| 1286 |
if (tail) { |
| 1287 |
strncpy(text + outofs, text + inofs, tail); |
| 1288 |
outofs += tail; |
| 1289 |
} |
| 1290 |
} |
| 1291 |
|
| 1292 |
free(ranges); |
| 1293 |
|
| 1294 |
(void)pcloseRWE(shrink_pid, shrink_pipe); |
| 1295 |
|
| 1296 |
text[outofs] = 0; |
| 1297 |
dbg("after len=%u\n", outofs); |
| 1298 |
return text; |
| 1299 |
} |
| 1300 |
|
| 1301 |
int main(int argc, char *argv[], char *envp[]) |
| 1302 |
{ |
| 1303 |
static const struct option options[] = { |
| 1304 |
{ "debug", 0, NULL, 'd' }, |
| 1305 |
{ "verbose", 0, NULL, 'V' }, |
| 1306 |
{ "account", 1, NULL, 'a' }, |
| 1307 |
{ "password", 1, NULL, 'p' }, |
| 1308 |
{ "host", 1, NULL, 'H' }, |
| 1309 |
{ "proxy", 1, NULL, 'P' }, |
| 1310 |
{ "action", 1, NULL, 'A' }, |
| 1311 |
{ "user", 1, NULL, 'u' }, |
| 1312 |
{ "group", 1, NULL, 'G' }, |
| 1313 |
{ "logfile", 1, NULL, 'L' }, |
| 1314 |
{ "shrink-urls", 0, NULL, 's' }, |
| 1315 |
{ "help", 0, NULL, 'h' }, |
| 1316 |
{ "bash", 0, NULL, 'b' }, |
| 1317 |
{ "background", 0, NULL, 'B' }, |
| 1318 |
{ "dry-run", 0, NULL, 'n' }, |
| 1319 |
{ "page", 1, NULL, 'g' }, |
| 1320 |
{ "version", 0, NULL, 'v' }, |
| 1321 |
{ "config", 1, NULL, 'c' }, |
| 1322 |
{ "replyto", 1, NULL, 'r' }, |
| 1323 |
{ } |
| 1324 |
}; |
| 1325 |
struct session *session; |
| 1326 |
pid_t child; |
| 1327 |
char *tweet; |
| 1328 |
static char password[80]; |
| 1329 |
int retval = 0; |
| 1330 |
int option; |
| 1331 |
char *http_proxy; |
| 1332 |
time_t t; |
| 1333 |
int page_nr; |
| 1334 |
|
| 1335 |
debug = 0; |
| 1336 |
verbose = 0; |
| 1337 |
|
| 1338 |
session = session_alloc(); |
| 1339 |
if (!session) { |
| 1340 |
fprintf(stderr, "no more memory...\n"); |
| 1341 |
return -1; |
| 1342 |
} |
| 1343 |
|
| 1344 |
/* get the current time so that we can log it later */ |
| 1345 |
time(&t); |
| 1346 |
session->time = strdup(ctime(&t)); |
| 1347 |
session->time[strlen(session->time)-1] = 0x00; |
| 1348 |
|
| 1349 |
/* Get the home directory so we can try to find a config file */ |
| 1350 |
session->homedir = strdup(getenv("HOME")); |
| 1351 |
|
| 1352 |
/* set up a default config file location (traditionally ~/.bti) */ |
| 1353 |
session->configfile = zalloc(strlen(session->homedir) + 7); |
| 1354 |
sprintf(session->configfile, "%s/.bti", session->homedir); |
| 1355 |
|
| 1356 |
/* Set environment variables first, before reading command line options |
| 1357 |
* or config file values. */ |
| 1358 |
http_proxy = getenv("http_proxy"); |
| 1359 |
if (http_proxy) { |
| 1360 |
if (session->proxy) |
| 1361 |
free(session->proxy); |
| 1362 |
session->proxy = strdup(http_proxy); |
| 1363 |
dbg("http_proxy = %s\n", session->proxy); |
| 1364 |
} |
| 1365 |
|
| 1366 |
parse_configfile(session); |
| 1367 |
|
| 1368 |
while (1) { |
| 1369 |
option = getopt_long_only(argc, argv, |
| 1370 |
"dp:P:H:a:A:u:c:hg:G:sr:nVv", |
| 1371 |
options, NULL); |
| 1372 |
if (option == -1) |
| 1373 |
break; |
| 1374 |
switch (option) { |
| 1375 |
case 'd': |
| 1376 |
debug = 1; |
| 1377 |
break; |
| 1378 |
case 'V': |
| 1379 |
verbose = 1; |
| 1380 |
break; |
| 1381 |
case 'a': |
| 1382 |
if (session->account) |
| 1383 |
free(session->account); |
| 1384 |
session->account = strdup(optarg); |
| 1385 |
dbg("account = %s\n", session->account); |
| 1386 |
break; |
| 1387 |
case 'g': |
| 1388 |
page_nr = atoi(optarg); |
| 1389 |
dbg("page = %d\n", page_nr); |
| 1390 |
session->page = page_nr; |
| 1391 |
break; |
| 1392 |
case 'r': |
| 1393 |
session->replyto = strdup(optarg); |
| 1394 |
dbg("in_reply_to_status_id = %s\n", session->replyto); |
| 1395 |
break; |
| 1396 |
case 'p': |
| 1397 |
if (session->password) |
| 1398 |
free(session->password); |
| 1399 |
session->password = strdup(optarg); |
| 1400 |
dbg("password = %s\n", session->password); |
| 1401 |
break; |
| 1402 |
case 'P': |
| 1403 |
if (session->proxy) |
| 1404 |
free(session->proxy); |
| 1405 |
session->proxy = strdup(optarg); |
| 1406 |
dbg("proxy = %s\n", session->proxy); |
| 1407 |
break; |
| 1408 |
case 'A': |
| 1409 |
if (strcasecmp(optarg, "update") == 0) |
| 1410 |
session->action = ACTION_UPDATE; |
| 1411 |
else if (strcasecmp(optarg, "friends") == 0) |
| 1412 |
session->action = ACTION_FRIENDS; |
| 1413 |
else if (strcasecmp(optarg, "user") == 0) |
| 1414 |
session->action = ACTION_USER; |
| 1415 |
else if (strcasecmp(optarg, "replies") == 0) |
| 1416 |
session->action = ACTION_REPLIES; |
| 1417 |
else if (strcasecmp(optarg, "public") == 0) |
| 1418 |
session->action = ACTION_PUBLIC; |
| 1419 |
else if (strcasecmp(optarg, "group") == 0) |
| 1420 |
session->action = ACTION_GROUP; |
| 1421 |
else |
| 1422 |
session->action = ACTION_UNKNOWN; |
| 1423 |
dbg("action = %d\n", session->action); |
| 1424 |
break; |
| 1425 |
case 'u': |
| 1426 |
if (session->user) |
| 1427 |
free(session->user); |
| 1428 |
session->user = strdup(optarg); |
| 1429 |
dbg("user = %s\n", session->user); |
| 1430 |
break; |
| 1431 |
|
| 1432 |
case 'G': |
| 1433 |
if (session->group) |
| 1434 |
free(session->group); |
| 1435 |
session->group = strdup(optarg); |
| 1436 |
dbg("group = %s\n", session->group); |
| 1437 |
break; |
| 1438 |
case 'L': |
| 1439 |
if (session->logfile) |
| 1440 |
free(session->logfile); |
| 1441 |
session->logfile = strdup(optarg); |
| 1442 |
dbg("logfile = %s\n", session->logfile); |
| 1443 |
break; |
| 1444 |
case 's': |
| 1445 |
session->shrink_urls = 1; |
| 1446 |
break; |
| 1447 |
case 'H': |
| 1448 |
if (session->hosturl) |
| 1449 |
free(session->hosturl); |
| 1450 |
if (session->hostname) |
| 1451 |
free(session->hostname); |
| 1452 |
if (strcasecmp(optarg, "twitter") == 0) { |
| 1453 |
session->host = HOST_TWITTER; |
| 1454 |
session->hosturl = strdup(twitter_host); |
| 1455 |
session->hostname = strdup(twitter_name); |
| 1456 |
} else if (strcasecmp(optarg, "identica") == 0) { |
| 1457 |
session->host = HOST_IDENTICA; |
| 1458 |
session->hosturl = strdup(identica_host); |
| 1459 |
session->hostname = strdup(identica_name); |
| 1460 |
} else { |
| 1461 |
session->host = HOST_CUSTOM; |
| 1462 |
session->hosturl = strdup(optarg); |
| 1463 |
session->hostname = strdup(optarg); |
| 1464 |
} |
| 1465 |
dbg("host = %d\n", session->host); |
| 1466 |
break; |
| 1467 |
case 'b': |
| 1468 |
session->bash = 1; |
| 1469 |
/* fall-through intended */ |
| 1470 |
case 'B': |
| 1471 |
session->background = 1; |
| 1472 |
break; |
| 1473 |
case 'c': |
| 1474 |
if (session->configfile) |
| 1475 |
free(session->configfile); |
| 1476 |
session->configfile = strdup(optarg); |
| 1477 |
dbg("configfile = %s\n", session->configfile); |
| 1478 |
|
| 1479 |
/* |
| 1480 |
* read the config file now. Yes, this could override |
| 1481 |
* previously set options from the command line, but |
| 1482 |
* the user asked for it... |
| 1483 |
*/ |
| 1484 |
parse_configfile(session); |
| 1485 |
break; |
| 1486 |
case 'h': |
| 1487 |
display_help(); |
| 1488 |
goto exit; |
| 1489 |
case 'n': |
| 1490 |
session->dry_run = 1; |
| 1491 |
break; |
| 1492 |
case 'v': |
| 1493 |
display_version(); |
| 1494 |
goto exit; |
| 1495 |
default: |
| 1496 |
display_help(); |
| 1497 |
goto exit; |
| 1498 |
} |
| 1499 |
} |
| 1500 |
|
| 1501 |
session_readline_init(session); |
| 1502 |
/* |
| 1503 |
* Show the version to make it easier to determine what |
| 1504 |
* is going on here |
| 1505 |
*/ |
| 1506 |
if (debug) |
| 1507 |
display_version(); |
| 1508 |
|
| 1509 |
if (session->host == HOST_TWITTER) { |
| 1510 |
if (!session->consumer_key || !session->consumer_secret) { |
| 1511 |
fprintf(stderr, |
| 1512 |
"Twitter no longer supports HTTP basic authentication.\n" |
| 1513 |
"Both consumer key, and consumer secret are required" |
| 1514 |
" for bti in order to behave as an OAuth consumer.\n"); |
| 1515 |
goto exit; |
| 1516 |
} |
| 1517 |
if (session->action == ACTION_GROUP) { |
| 1518 |
fprintf(stderr, "Groups only work in Identi.ca.\n"); |
| 1519 |
goto exit; |
| 1520 |
} |
| 1521 |
} else { |
| 1522 |
if (!session->consumer_key || !session->consumer_secret) |
| 1523 |
session->no_oauth = 1; |
| 1524 |
} |
| 1525 |
|
| 1526 |
if (session->no_oauth) { |
| 1527 |
if (!session->account) { |
| 1528 |
fprintf(stdout, "Enter account for %s: ", |
| 1529 |
session->hostname); |
| 1530 |
session->account = session->readline(NULL); |
| 1531 |
} |
| 1532 |
if (!session->password) { |
| 1533 |
read_password(password, sizeof(password), |
| 1534 |
session->hostname); |
| 1535 |
session->password = strdup(password); |
| 1536 |
} |
| 1537 |
} else { |
| 1538 |
if (!session->access_token_key || |
| 1539 |
!session->access_token_secret) { |
| 1540 |
request_access_token(session); |
| 1541 |
goto exit; |
| 1542 |
} |
| 1543 |
} |
| 1544 |
|
| 1545 |
if (session->action == ACTION_UNKNOWN) { |
| 1546 |
fprintf(stderr, "Unknown action, valid actions are:\n" |
| 1547 |
"'update', 'friends', 'public', 'replies', 'group' or 'user'.\n"); |
| 1548 |
goto exit; |
| 1549 |
} |
| 1550 |
|
| 1551 |
if (session->action == ACTION_GROUP && !session->group) { |
| 1552 |
fprintf(stdout, "Enter group name: "); |
| 1553 |
session->group = session->readline(NULL); |
| 1554 |
} |
| 1555 |
|
| 1556 |
if (session->action == ACTION_UPDATE) { |
| 1557 |
if (session->background || !session->interactive) |
| 1558 |
tweet = get_string_from_stdin(); |
| 1559 |
else |
| 1560 |
tweet = session->readline("tweet: "); |
| 1561 |
if (!tweet || strlen(tweet) == 0) { |
| 1562 |
dbg("no tweet?\n"); |
| 1563 |
return -1; |
| 1564 |
} |
| 1565 |
|
| 1566 |
if (session->shrink_urls) |
| 1567 |
tweet = shrink_urls(tweet); |
| 1568 |
|
| 1569 |
session->tweet = zalloc(strlen(tweet) + 10); |
| 1570 |
if (session->bash) |
| 1571 |
sprintf(session->tweet, "%c %s", |
| 1572 |
getuid() ? '$' : '#', tweet); |
| 1573 |
else |
| 1574 |
sprintf(session->tweet, "%s", tweet); |
| 1575 |
|
| 1576 |
free(tweet); |
| 1577 |
dbg("tweet = %s\n", session->tweet); |
| 1578 |
} |
| 1579 |
|
| 1580 |
if (session->page == 0) |
| 1581 |
session->page = 1; |
| 1582 |
dbg("config file = %s\n", session->configfile); |
| 1583 |
dbg("host = %d\n", session->host); |
| 1584 |
dbg("action = %d\n", session->action); |
| 1585 |
|
| 1586 |
/* fork ourself so that the main shell can get on |
| 1587 |
* with it's life as we try to connect and handle everything |
| 1588 |
*/ |
| 1589 |
if (session->background) { |
| 1590 |
child = fork(); |
| 1591 |
if (child) { |
| 1592 |
dbg("child is %d\n", child); |
| 1593 |
exit(0); |
| 1594 |
} |
| 1595 |
} |
| 1596 |
|
| 1597 |
retval = send_request(session); |
| 1598 |
if (retval && !session->background) |
| 1599 |
fprintf(stderr, "operation failed\n"); |
| 1600 |
|
| 1601 |
log_session(session, retval); |
| 1602 |
exit: |
| 1603 |
session_readline_cleanup(session); |
| 1604 |
session_free(session); |
| 1605 |
return retval;; |
| 1606 |
} |
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