Sun, 15 Apr 2007 02:10:37 +0000
propagate from branch 'im.pidgin.gaim' (head b2836a24d81e7a1bd1d21b3aea8794b094391344)
to branch 'im.pidgin.rlaager.merging.soc-msnp13-to-svn18164' (head 463b4fa9f067b279f843520d95a822adc86a0a1b)
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This is a hand-crafted commit to migrate across subversion revisions
Ethan Blanton <elb@pidgin.im>
parents:
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diff
changeset
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1 | /* $Id: pubdir50.c 16856 2006-08-19 01:13:25Z evands $ */ |
| 11360 | 2 | |
| 3 | /* | |
| 4 | * (C) Copyright 2003 Wojtek Kaniewski <wojtekka@irc.pl> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU Lesser General Public License Version | |
| 8 | * 2.1 as published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | * GNU Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this program; if not, write to the Free Software | |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, | |
| 18 | * USA. | |
| 19 | */ | |
| 20 | ||
| 21 | #include <errno.h> | |
| 22 | #include <stdlib.h> | |
| 23 | #include <string.h> | |
| 24 | #include <time.h> | |
| 25 | ||
| 26 | #include "libgadu.h" | |
| 27 | ||
| 28 | /* | |
| 29 | * gg_pubdir50_new() | |
| 30 | * | |
| 31 | * tworzy nową zmienną typu gg_pubdir50_t. | |
| 32 | * | |
| 33 | * zaalokowana zmienna lub NULL w przypadku braku pamięci. | |
| 34 | */ | |
| 35 | gg_pubdir50_t gg_pubdir50_new(int type) | |
| 36 | { | |
| 37 | gg_pubdir50_t res = malloc(sizeof(struct gg_pubdir50_s)); | |
| 38 | ||
| 39 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50_new(%d);\n", type); | |
| 40 | ||
| 41 | if (!res) { | |
| 42 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_new() out of memory\n"); | |
| 43 | return NULL; | |
| 44 | } | |
| 45 | ||
| 46 | memset(res, 0, sizeof(struct gg_pubdir50_s)); | |
| 47 | ||
| 48 | res->type = type; | |
| 49 | ||
| 50 | return res; | |
| 51 | } | |
| 52 | ||
| 53 | /* | |
| 54 | * gg_pubdir50_add_n() // funkcja wewnętrzna | |
| 55 | * | |
| 56 | * funkcja dodaje lub zastępuje istniejące pole do zapytania lub odpowiedzi. | |
| 57 | * | |
| 58 | * - req - wskaźnik opisu zapytania, | |
| 59 | * - num - numer wyniku (0 dla zapytania), | |
| 60 | * - field - nazwa pola, | |
| 61 | * - value - wartość pola, | |
| 62 | * | |
| 63 | * 0/-1 | |
| 64 | */ | |
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Richard Laager <rlaager@pidgin.im>
parents:
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changeset
|
65 | static int gg_pubdir50_add_n(gg_pubdir50_t req, int num, const char *field, const char *value) |
| 11360 | 66 | { |
| 67 | struct gg_pubdir50_entry *tmp = NULL, *entry; | |
| 68 | char *dupfield, *dupvalue; | |
| 69 | int i; | |
| 70 | ||
| 71 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50_add_n(%p, %d, \"%s\", \"%s\");\n", req, num, field, value); | |
| 72 | ||
| 73 | if (!(dupvalue = strdup(value))) { | |
| 74 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_add_n() out of memory\n"); | |
| 75 | return -1; | |
| 76 | } | |
| 77 | ||
| 78 | for (i = 0; i < req->entries_count; i++) { | |
| 79 | if (req->entries[i].num != num || strcmp(req->entries[i].field, field)) | |
| 80 | continue; | |
| 81 | ||
| 82 | free(req->entries[i].value); | |
| 83 | req->entries[i].value = dupvalue; | |
| 84 | ||
| 85 | return 0; | |
| 86 | } | |
| 87 | ||
| 88 | if (!(dupfield = strdup(field))) { | |
| 89 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_add_n() out of memory\n"); | |
| 90 | free(dupvalue); | |
| 91 | return -1; | |
| 92 | } | |
| 93 | ||
| 94 | if (!(tmp = realloc(req->entries, sizeof(struct gg_pubdir50_entry) * (req->entries_count + 1)))) { | |
| 95 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_add_n() out of memory\n"); | |
| 96 | free(dupfield); | |
| 97 | free(dupvalue); | |
| 98 | return -1; | |
| 99 | } | |
| 100 | ||
| 101 | req->entries = tmp; | |
| 102 | ||
| 103 | entry = &req->entries[req->entries_count]; | |
| 104 | entry->num = num; | |
| 105 | entry->field = dupfield; | |
| 106 | entry->value = dupvalue; | |
| 107 | ||
| 108 | req->entries_count++; | |
| 109 | ||
| 110 | return 0; | |
| 111 | } | |
| 112 | ||
| 113 | /* | |
| 114 | * gg_pubdir50_add() | |
| 115 | * | |
| 116 | * funkcja dodaje pole do zapytania. | |
| 117 | * | |
| 118 | * - req - wskaźnik opisu zapytania, | |
| 119 | * - field - nazwa pola, | |
| 120 | * - value - wartość pola, | |
| 121 | * | |
| 122 | * 0/-1 | |
| 123 | */ | |
| 124 | int gg_pubdir50_add(gg_pubdir50_t req, const char *field, const char *value) | |
| 125 | { | |
| 126 | return gg_pubdir50_add_n(req, 0, field, value); | |
| 127 | } | |
| 128 | ||
| 129 | /* | |
| 130 | * gg_pubdir50_seq_set() | |
| 131 | * | |
| 132 | * ustawia numer sekwencyjny zapytania. | |
| 133 | * | |
| 134 | * - req - zapytanie, | |
| 135 | * - seq - nowy numer sekwencyjny. | |
| 136 | * | |
| 137 | * 0/-1. | |
| 138 | */ | |
| 139 | int gg_pubdir50_seq_set(gg_pubdir50_t req, uint32_t seq) | |
| 140 | { | |
| 141 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50_seq_set(%p, %d);\n", req, seq); | |
| 142 | ||
| 143 | if (!req) { | |
| 144 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_seq_set() invalid arguments\n"); | |
| 145 | errno = EFAULT; | |
| 146 | return -1; | |
| 147 | } | |
| 148 | ||
| 149 | req->seq = seq; | |
| 150 | ||
| 151 | return 0; | |
| 152 | } | |
| 153 | ||
| 154 | /* | |
| 155 | * gg_pubdir50_free() | |
| 156 | * | |
| 157 | * zwalnia pamięć po zapytaniu lub rezultacie szukania użytkownika. | |
| 158 | * | |
| 159 | * - s - zwalniana zmienna, | |
| 160 | */ | |
| 161 | void gg_pubdir50_free(gg_pubdir50_t s) | |
| 162 | { | |
| 163 | int i; | |
| 164 | ||
| 165 | if (!s) | |
| 166 | return; | |
| 167 | ||
| 168 | for (i = 0; i < s->entries_count; i++) { | |
| 169 | free(s->entries[i].field); | |
| 170 | free(s->entries[i].value); | |
| 171 | } | |
| 172 | ||
| 173 | free(s->entries); | |
| 174 | free(s); | |
| 175 | } | |
| 176 | ||
| 177 | /* | |
| 178 | * gg_pubdir50() | |
| 179 | * | |
| 180 | * wysyła zapytanie katalogu publicznego do serwera. | |
| 181 | * | |
| 182 | * - sess - sesja, | |
| 183 | * - req - zapytanie. | |
| 184 | * | |
| 185 | * numer sekwencyjny wyszukiwania lub 0 w przypadku błędu. | |
| 186 | */ | |
| 187 | uint32_t gg_pubdir50(struct gg_session *sess, gg_pubdir50_t req) | |
| 188 | { | |
| 189 | int i, size = 5; | |
| 190 | uint32_t res; | |
| 191 | char *buf, *p; | |
| 192 | struct gg_pubdir50_request *r; | |
| 193 | ||
| 194 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50(%p, %p);\n", sess, req); | |
| 195 | ||
| 196 | if (!sess || !req) { | |
| 197 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50() invalid arguments\n"); | |
| 198 | errno = EFAULT; | |
| 199 | return 0; | |
| 200 | } | |
| 201 | ||
| 202 | if (sess->state != GG_STATE_CONNECTED) { | |
| 203 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50() not connected\n"); | |
| 204 | errno = ENOTCONN; | |
| 205 | return 0; | |
| 206 | } | |
| 207 | ||
| 208 | for (i = 0; i < req->entries_count; i++) { | |
| 209 | /* wyszukiwanie bierze tylko pierwszy wpis */ | |
| 210 | if (req->entries[i].num) | |
| 211 | continue; | |
| 212 | ||
| 213 | size += strlen(req->entries[i].field) + 1; | |
| 214 | size += strlen(req->entries[i].value) + 1; | |
| 215 | } | |
| 216 | ||
| 217 | if (!(buf = malloc(size))) { | |
| 218 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50() out of memory (%d bytes)\n", size); | |
| 219 | return 0; | |
| 220 | } | |
| 221 | ||
| 222 | r = (struct gg_pubdir50_request*) buf; | |
| 223 | res = time(NULL); | |
| 224 | r->type = req->type; | |
| 225 | r->seq = (req->seq) ? gg_fix32(req->seq) : gg_fix32(time(NULL)); | |
| 226 | req->seq = gg_fix32(r->seq); | |
| 227 | ||
| 228 | for (i = 0, p = buf + 5; i < req->entries_count; i++) { | |
| 229 | if (req->entries[i].num) | |
| 230 | continue; | |
| 231 | ||
| 232 | strcpy(p, req->entries[i].field); | |
| 233 | p += strlen(p) + 1; | |
| 234 | ||
| 235 | strcpy(p, req->entries[i].value); | |
| 236 | p += strlen(p) + 1; | |
| 237 | } | |
| 238 | ||
| 239 | if (gg_send_packet(sess, GG_PUBDIR50_REQUEST, buf, size, NULL, 0) == -1) | |
| 240 | res = 0; | |
| 241 | ||
| 242 | free(buf); | |
| 243 | ||
| 244 | return res; | |
| 245 | } | |
| 246 | ||
| 247 | /* | |
| 248 | * gg_pubdir50_handle_reply() // funkcja wewnętrzna | |
| 249 | * | |
| 250 | * analizuje przychodzący pakiet odpowiedzi i zapisuje wynik w struct gg_event. | |
| 251 | * | |
| 252 | * - e - opis zdarzenia | |
| 253 | * - packet - zawartość pakietu odpowiedzi | |
| 254 | * - length - długość pakietu odpowiedzi | |
| 255 | * | |
| 256 | * 0/-1 | |
| 257 | */ | |
| 258 | int gg_pubdir50_handle_reply(struct gg_event *e, const char *packet, int length) | |
| 259 | { | |
| 260 | const char *end = packet + length, *p; | |
| 261 | struct gg_pubdir50_reply *r = (struct gg_pubdir50_reply*) packet; | |
| 262 | gg_pubdir50_t res; | |
| 263 | int num = 0; | |
| 264 | ||
| 265 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50_handle_reply(%p, %p, %d);\n", e, packet, length); | |
| 266 | ||
| 267 | if (!e || !packet) { | |
| 268 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_handle_reply() invalid arguments\n"); | |
| 269 | errno = EFAULT; | |
| 270 | return -1; | |
| 271 | } | |
| 272 | ||
| 273 | if (length < 5) { | |
| 274 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_handle_reply() packet too short\n"); | |
| 275 | errno = EINVAL; | |
| 276 | return -1; | |
| 277 | } | |
| 278 | ||
| 279 | if (!(res = gg_pubdir50_new(r->type))) { | |
| 280 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_handle_reply() unable to allocate reply\n"); | |
| 281 | return -1; | |
| 282 | } | |
| 283 | ||
| 284 | e->event.pubdir50 = res; | |
| 285 | ||
| 286 | res->seq = gg_fix32(r->seq); | |
| 287 | ||
| 288 | switch (res->type) { | |
| 289 | case GG_PUBDIR50_READ: | |
| 290 | e->type = GG_EVENT_PUBDIR50_READ; | |
| 291 | break; | |
| 292 | ||
| 293 | case GG_PUBDIR50_WRITE: | |
| 294 | e->type = GG_EVENT_PUBDIR50_WRITE; | |
| 295 | break; | |
| 296 | ||
| 297 | default: | |
| 298 | e->type = GG_EVENT_PUBDIR50_SEARCH_REPLY; | |
| 299 | break; | |
| 300 | } | |
| 301 | ||
| 302 | /* brak wyników? */ | |
| 303 | if (length == 5) | |
| 304 | return 0; | |
| 305 | ||
| 306 | /* pomiń początek odpowiedzi */ | |
| 307 | p = packet + 5; | |
| 308 | ||
| 309 | while (p < end) { | |
| 310 | const char *field, *value; | |
| 311 | ||
| 312 | field = p; | |
| 313 | ||
| 314 | /* sprawdź, czy nie mamy podziału na kolejne pole */ | |
| 315 | if (!*field) { | |
| 316 | num++; | |
| 317 | field++; | |
| 318 | } | |
| 319 | ||
| 320 | value = NULL; | |
| 321 | ||
| 322 | for (p = field; p < end; p++) { | |
| 323 | /* jeśli mamy koniec tekstu... */ | |
| 324 | if (!*p) { | |
| 325 | /* ...i jeszcze nie mieliśmy wartości pola to | |
| 326 | * wiemy, że po tym zerze jest wartość... */ | |
| 327 | if (!value) | |
| 328 | value = p + 1; | |
| 329 | else | |
| 330 | /* ...w przeciwym wypadku koniec | |
| 331 | * wartości i możemy wychodzić | |
| 332 | * grzecznie z pętli */ | |
| 333 | break; | |
| 334 | } | |
| 335 | } | |
| 336 | ||
| 337 | /* sprawdźmy, czy pole nie wychodzi poza pakiet, żeby nie | |
| 338 | * mieć segfaultów, jeśli serwer przestanie zakańczać pakietów | |
| 339 | * przez \0 */ | |
| 340 | ||
| 341 | if (p == end) { | |
| 342 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_handle_reply() premature end of packet\n"); | |
| 343 | goto failure; | |
| 344 | } | |
| 345 | ||
| 346 | p++; | |
| 347 | ||
| 348 | /* jeśli dostaliśmy namier na następne wyniki, to znaczy że | |
| 349 | * mamy koniec wyników i nie jest to kolejna osoba. */ | |
| 350 | if (!strcasecmp(field, "nextstart")) { | |
| 351 | res->next = atoi(value); | |
| 352 | num--; | |
| 353 | } else { | |
| 354 | if (gg_pubdir50_add_n(res, num, field, value) == -1) | |
| 355 | goto failure; | |
| 356 | } | |
| 357 | } | |
| 358 | ||
| 359 | res->count = num + 1; | |
| 360 | ||
| 361 | return 0; | |
| 362 | ||
| 363 | failure: | |
| 364 | gg_pubdir50_free(res); | |
| 365 | return -1; | |
| 366 | } | |
| 367 | ||
| 368 | /* | |
| 369 | * gg_pubdir50_get() | |
| 370 | * | |
| 371 | * pobiera informację z rezultatu wyszukiwania. | |
| 372 | * | |
| 373 | * - res - rezultat wyszukiwania, | |
| 374 | * - num - numer odpowiedzi, | |
| 375 | * - field - nazwa pola (wielkość liter nie ma znaczenia). | |
| 376 | * | |
| 377 | * wartość pola lub NULL, jeśli nie znaleziono. | |
| 378 | */ | |
| 379 | const char *gg_pubdir50_get(gg_pubdir50_t res, int num, const char *field) | |
| 380 | { | |
| 381 | char *value = NULL; | |
| 382 | int i; | |
| 383 | ||
| 384 | gg_debug(GG_DEBUG_FUNCTION, "** gg_pubdir50_get(%p, %d, \"%s\");\n", res, num, field); | |
| 385 | ||
| 386 | if (!res || num < 0 || !field) { | |
| 387 | gg_debug(GG_DEBUG_MISC, "// gg_pubdir50_get() invalid arguments\n"); | |
| 388 | errno = EINVAL; | |
| 389 | return NULL; | |
| 390 | } | |
| 391 | ||
| 392 | for (i = 0; i < res->entries_count; i++) { | |
| 393 | if (res->entries[i].num == num && !strcasecmp(res->entries[i].field, field)) { | |
| 394 | value = res->entries[i].value; | |
| 395 | break; | |
| 396 | } | |
| 397 | } | |
| 398 | ||
| 399 | return value; | |
| 400 | } | |
| 401 | ||
| 402 | /* | |
| 403 | * gg_pubdir50_count() | |
| 404 | * | |
| 405 | * zwraca ilość wyników danego zapytania. | |
| 406 | * | |
| 407 | * - res - odpowiedź | |
| 408 | * | |
| 409 | * ilość lub -1 w przypadku błędu. | |
| 410 | */ | |
| 411 | int gg_pubdir50_count(gg_pubdir50_t res) | |
| 412 | { | |
| 413 | return (!res) ? -1 : res->count; | |
| 414 | } | |
| 415 | ||
| 416 | /* | |
| 417 | * gg_pubdir50_type() | |
| 418 | * | |
| 419 | * zwraca rodzaj zapytania lub odpowiedzi. | |
| 420 | * | |
| 421 | * - res - zapytanie lub odpowiedź | |
| 422 | * | |
| 423 | * ilość lub -1 w przypadku błędu. | |
| 424 | */ | |
| 425 | int gg_pubdir50_type(gg_pubdir50_t res) | |
| 426 | { | |
| 427 | return (!res) ? -1 : res->type; | |
| 428 | } | |
| 429 | ||
| 430 | /* | |
| 431 | * gg_pubdir50_next() | |
| 432 | * | |
| 433 | * zwraca numer, od którego należy rozpocząć kolejne wyszukiwanie, jeśli | |
| 434 | * zależy nam na kolejnych wynikach. | |
| 435 | * | |
| 436 | * - res - odpowiedź | |
| 437 | * | |
| 438 | * numer lub -1 w przypadku błędu. | |
| 439 | */ | |
| 440 | uin_t gg_pubdir50_next(gg_pubdir50_t res) | |
| 441 | { | |
| 442 | return (!res) ? (unsigned) -1 : res->next; | |
| 443 | } | |
| 444 | ||
| 445 | /* | |
| 446 | * gg_pubdir50_seq() | |
| 447 | * | |
| 448 | * zwraca numer sekwencyjny zapytania lub odpowiedzi. | |
| 449 | * | |
| 450 | * - res - zapytanie lub odpowiedź | |
| 451 | * | |
| 452 | * numer lub -1 w przypadku błędu. | |
| 453 | */ | |
| 454 | uint32_t gg_pubdir50_seq(gg_pubdir50_t res) | |
| 455 | { | |
| 456 | return (!res) ? (unsigned) -1 : res->seq; | |
| 457 | } | |
| 458 | ||
| 459 | /* | |
| 460 | * Local variables: | |
| 461 | * c-indentation-style: k&r | |
| 462 | * c-basic-offset: 8 | |
| 463 | * indent-tabs-mode: notnil | |
| 464 | * End: | |
| 465 | * | |
| 466 | * vim: shiftwidth=8: | |
| 467 | */ |