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First potentially working version of the transsocket.
[doldaconnect.git] / daemon / fnet-dc.c
CommitLineData
d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
302a2600 3 * Copyright (C) 2004 Fredrik Tolf <fredrik@dolda2000.com>
d3372da9 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
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 General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#include <stdlib.h>
20#include <stdio.h>
21#include <wchar.h>
d3372da9 22#include <unistd.h>
23#include <fcntl.h>
24#include <string.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
d3372da9 27#include <wctype.h>
28#include <time.h>
29#include <errno.h>
30#include <bzlib.h>
31#include <zlib.h>
32#include <sys/stat.h>
f9455250 33#include <stdint.h>
d3372da9 34
35#ifdef HAVE_CONFIG_H
36#include <config.h>
37#endif
38#include "filenet.h"
39#include "log.h"
40#include "module.h"
41#include "utils.h"
42#include "client.h"
43#include "transfer.h"
44#include "sysevents.h"
45#include "net.h"
8b17e919 46#include <tiger.h>
d3372da9 47
48/*
49 * The Direct Connect protocol is extremely ugly. Thus, this code must
50 * also be a bit ugly in certain places. Please forgive me. =/
51 *
52 * This also means that there might be some pieces of the code that
53 * look completely illogical to you, and you think that you may make
54 * them much neater/better. However, in many cases it might just be
55 * that it's required to cope with some oddity of the protocol, such
56 * as the amazingly ugly delayed key response in the peer protocol.
57 */
58
59/* I assume this is the correct character set to use for DC,
60 * considering it was developed without i18n support under Windows */
61#define DCCHARSET "windows-1252"
62
d3372da9 63#define PEER_CMD 0
9a2d6cb8 64#define PEER_STOP 1
65#define PEER_TRNS 2
66#define PEER_SYNC 3
67#define PEER_TTHL 4
d3372da9 68
69#define CPRS_NONE 0
70#define CPRS_ZLIB 1
71
72struct command
73{
74 char *name;
75 void (*handler)(struct socket *sk, void *data, char *cmd, char *args);
9a2d6cb8 76 int stop;
8cb2d75b 77 int limit;
d3372da9 78};
79
80struct qcommand
81{
82 struct qcommand *next;
83 char *string;
84};
85
c256f071
FT		 86struct qcmdqueue
87{
88 struct qcommand *f, *l;
8cb2d75b 89 int size;
c256f071
FT		 90};
91
d3372da9 92struct dchub
93{
ffa81d5f 94 struct socket *sk;
d3372da9 95 char *inbuf;
96 size_t inbufdata, inbufsize;
c256f071 97 struct qcmdqueue queue;
1c4b02cd 98 int extended, dcppemu;
1d85f24b 99 char *charset;
d3372da9 100 char *nativename;
101 char *nativenick;
08b74f8c 102 char **supports;
d3372da9 103};
104
105struct dcexppeer
106{
107 struct dcexppeer *next, *prev;
108 char *nick;
109 struct fnetnode *fn;
110 struct timer *expire;
111};
112
113struct dcpeer
114{
115 struct dcpeer *next, *prev;
116 struct socket *sk;
117 struct fnetnode *fn;
118 char *inbuf;
119 size_t inbufdata, inbufsize;
dcf7a1a2 120 off_t curread, totalsize;
2bf4942d 121 int close;
1e9d82b1 122 struct timer *timeout;
c256f071 123 struct qcmdqueue queue;
d3372da9 124 struct transfer *transfer;
1ce5968e 125 struct socket *trpipe;
d3372da9 126 int state;
127 int ptclose; /* Close after transfer is complete */
128 int accepted; /* If false, we connected, otherwise, we accepted */
1c4b02cd 129 int extended, dcppemu;
d3372da9 130 int direction; /* Using the constants from transfer.h */
131 int compress;
df873cd0 132 int hascurpos, fetchingtthl, notthl;
9a2d6cb8 133 struct tigertreehash tth;
1d85f24b 134 char *charset;
d3372da9 135 void *cprsdata;
d3372da9 136 char *key;
137 char *nativename;
138 char **supports;
139 wchar_t *wcsname;
140};
141
142static struct fnet dcnet;
d3372da9 143static struct socket *udpsock = NULL;
d1ef0200 144static struct lport *tcpsock = NULL;
d3372da9 145static struct dcpeer *peers = NULL;
146int numdcpeers = 0;
147static struct dcexppeer *expected = NULL;
148static char *hmlistname = NULL;
149static char *xmllistname = NULL;
150static char *xmlbz2listname = NULL;
6305c428 151static struct timer *listwritetimer = NULL;
d3372da9 152
1ce5968e 153static struct socket *mktrpipe(struct dcpeer *peer);
cab0b442 154static void peerconnect(struct socket *sk, int err, struct fnetnode *fn);
d3372da9 155static void freedcpeer(struct dcpeer *peer);
cab0b442 156static void transread(struct socket *sk, struct dcpeer *peer);
157static void transerr(struct socket *sk, int err, struct dcpeer *peer);
158static void transwrite(struct socket *sk, struct dcpeer *peer);
d3372da9 159static void updatehmlist(void);
160static void updatexmllist(void);
161static void updatexmlbz2list(void);
9a2d6cb8 162static void requestfile(struct dcpeer *peer);
6305c428 163static void updatelists(int now);
d3372da9 164
165static int reservedchar(unsigned char c)
166{
167 return((c == 0) || (c == 5) || (c == 124) || (c == 96) || (c == 126) || (c == 36));
168}
169
170/* Oh, how I despise having to do this... */
171static char *dcmakekey(char *lock)
172{
173 int i, len, offset;
174 char *buf, *key;
175 char save;
176
177 buf = smalloc(strlen(lock));
178 save = 5;
179 len = 0;
180 for(i = 0; lock[i]; i++)
181 {
182 buf[i] = lock[i] ^ save;
183 buf[i] = ((buf[i] & 0x0F) << 4) | ((buf[i] & 0xF0) >> 4);
184 save = lock[i];
185 if((i != 0) && reservedchar(buf[i]))
186 len += 10;
187 else
188 len++;
189 }
190 buf[0] ^= buf[i - 1];
191 if(reservedchar(buf[0]))
192 len += 10;
193 else
194 len++;
195 key = smalloc(len + 1);
196 offset = 0;
197 for(i = 0; lock[i] != 0; i++)
198 {
199 if(reservedchar(buf[i]))
200 offset += sprintf(key + offset, "/%%DCN%03i%%/", buf[i]);
201 else
202 key[offset++] = buf[i];
203 }
204 key[offset] = 0;
205 free(buf);
206 return(key);
207}
208
040118de 209static wchar_t *nmdc2path(char *nmdc, char *charset)
9a2d6cb8 210{
040118de 211 wchar_t *ret, *p;
9a2d6cb8 212
040118de
FT		 213 if((ret = icmbstowcs(nmdc, charset)) == NULL)
214 return(NULL);
215 for(p = ret; *p != L'\0'; p++) {
216 if(*p == L'\\')
217 *p = L'/';
9a2d6cb8 218 }
9a2d6cb8 219 return(ret);
220}
221
040118de
FT		 222static char *path2nmdc(wchar_t *path, char *charset)
223{
224 char *ret, *p;
225
226 if((ret = icwcstombs(path, charset)) == NULL)
227 return(NULL);
228 for(p = ret; *p; p++) {
229 if(*p == '/')
230 *p = '\\';
231 }
232 return(ret);
233}
234
235static wchar_t *adc2path(char *adc)
236{
237 return(icmbstowcs(adc, "UTF-8"));
238}
239
240static char *path2adc(wchar_t *path)
241{
242 return(icwcstombs(path, "UTF-8"));
243}
244
9a2d6cb8 245static int isdchash(struct hash *hash)
246{
247 if(wcscmp(hash->algo, L"TTH"))
248 return(0);
249 if(hash->len != 24)
250 return(0);
251 return(1);
252}
253
08b74f8c
FT		 254/*
255 * Uncomment when used!
256
257static int hubsupports(struct dchub *hub, char *cap)
258{
259 char **p;
260
261 if(hub->supports == NULL)
262 return(0);
263 for(p = hub->supports; *p != NULL; p++)
264 {
265 if(!strcasecmp(*p, cap))
266 return(1);
267 }
268 return(0);
269}
270*/
271
9a2d6cb8 272static int supports(struct dcpeer *peer, char *cap)
273{
274 char **p;
275
276 if(peer->supports == NULL)
277 return(0);
278 for(p = peer->supports; *p != NULL; p++)
279 {
280 if(!strcasecmp(*p, cap))
281 return(1);
282 }
283 return(0);
284}
285
d3372da9 286static void endcompress(struct dcpeer *peer)
287{
288 if(peer->compress == CPRS_ZLIB)
289 {
290 deflateEnd(peer->cprsdata);
291 free(peer->cprsdata);
292 }
293 peer->compress = CPRS_NONE;
294}
295
296static void initcompress(struct dcpeer *peer, int algo)
297{
298 int ret;
299
300 endcompress(peer);
301 peer->compress = algo;
302 if(algo == CPRS_ZLIB)
303 {
304 peer->cprsdata = smalloc(sizeof(z_stream));
305 memset(peer->cprsdata, 0, sizeof(z_stream));
306 if((ret = deflateInit(peer->cprsdata, 3)) != Z_OK)
307 {
308 flog(LOG_CRIT, "Aiya! zlib refuses to init (%i)!", ret);
309 abort();
310 }
311 }
312}
313
314static void unquote(wchar_t *in)
315{
316 wchar_t *p, *p2, nc;
317
318 for(p = in; *p != L'\0'; p++)
319 {
320 if(*p == L'&')
321 {
322 for(p2 = p + 1; (*p2 != L'\0') && (*p2 != L';') && (*p2 != L'&'); p2++);
323 if(*p2 == L'&')
324 continue;
325 if(*p2 == L'\0')
326 return;
327 *p2 = L'\0';
328 nc = L'\0';
329 if(!wcscmp(p + 1, L"amp"))
330 {
331 nc = L'&';
332 } else if(p[1] == L'#') {
333 nc = ucptowc(wcstol(p + 2, NULL, 10));
334 }
335 if(nc == L'\0')
336 {
337 *p2 = L';';
338 p = p2;
339 continue;
340 }
341 *p = nc;
342 memmove(p + 1, p2 + 1, (wcslen(p2 + 1) + 1) * sizeof(wchar_t));
343 }
344 }
345}
346
347static void freeexppeer(struct dcexppeer *ep)
348{
349 if(ep->next != NULL)
350 ep->next->prev = ep->prev;
351 if(ep->prev != NULL)
352 ep->prev->next = ep->next;
353 if(ep == expected)
354 expected = ep->next;
355 free(ep->nick);
356 putfnetnode(ep->fn);
357 if(ep->expire != NULL)
358 canceltimer(ep->expire);
359 free(ep);
360}
361
362static void exppeerexpire(int cancelled, struct dcexppeer *ep)
363{
364 ep->expire = NULL;
365 if(!cancelled)
366 freeexppeer(ep);
367}
368
369static struct dcexppeer *expectpeer(char *nick, struct fnetnode *fn)
370{
371 struct dcexppeer *ep;
372
373 ep = smalloc(sizeof(*ep));
374 ep->nick = sstrdup(nick);
375 getfnetnode(ep->fn = fn);
376 ep->expire = timercallback(ntime() + 300, (void (*)(int, void *))exppeerexpire, ep);
377 ep->next = expected;
378 ep->prev = NULL;
379 if(expected != NULL)
380 expected->prev = ep;
381 expected = ep;
382 return(ep);
383}
384
c256f071 385static struct qcommand *newqcmd(struct qcmdqueue *queue, char *string)
d3372da9 386{
387 struct qcommand *new;
388
d3372da9 389 new = smalloc(sizeof(*new));
390 new->string = sstrdup(string);
c256f071
FT		 391 new->next = NULL;
392 if(queue->l == NULL)
393 queue->f = new;
394 else
395 queue->l->next = new;
396 queue->l = new;
8cb2d75b 397 queue->size++;
d3372da9 398 return(new);
399}
400
c256f071 401static struct qcommand *ulqcmd(struct qcmdqueue *queue)
d3372da9 402{
403 struct qcommand *qcmd;
404
c256f071 405 if((qcmd = queue->f) == NULL)
d3372da9 406 return(NULL);
c256f071
FT		 407 if((queue->f = qcmd->next) == NULL)
408 queue->l = NULL;
8cb2d75b 409 queue->size--;
d3372da9 410 return(qcmd);
411}
412
413static void freeqcmd(struct qcommand *qcmd)
414{
415 free(qcmd->string);
416 free(qcmd);
417}
418
419static void hubrecvchat(struct socket *sk, struct fnetnode *fn, char *from, char *string)
420{
421 wchar_t *chat, *wfrom, *wpeer;
422 char *p, *end;
423 struct fnetpeer *peer;
1d85f24b 424 struct dchub *hub;
d3372da9 425
1d85f24b 426 hub = fn->data;
d3372da9 427 end = string + strlen(string);
428 while((p = strchr(string, 13)) != NULL)
429 memmove(p, p + 1, (end-- - p));
430 if(from != NULL)
431 {
432 if((strlen(string) > strlen(from) + 2) && (*string == '<') && !memcmp(string + 1, from, strlen(from)) && (*(string + strlen(from) + 1) == '>'))
433 string += strlen(from) + 2;
1d85f24b 434 if((wfrom = icmbstowcs(from, hub->charset)) == NULL)
d3372da9 435 return;
436 wpeer = swcsdup(wfrom);
437 } else {
438 wfrom = NULL;
439 wpeer = NULL;
440 if(*string == '<')
441 {
442 for(p = string + 1; *p; p++)
443 {
444 if((*p == ' ') || (*p == '>'))
445 break;
446 }
447 if(*p == '>')
448 {
449 *(p++) = 0;
450 if(*p == ' ')
451 p++;
1d85f24b 452 if((wpeer = icmbstowcs(string + 1, hub->charset)) == NULL)
d3372da9 453 return;
454 string = p;
455 }
456 }
457 if(wpeer == NULL)
458 wpeer = swcsdup(L"");
459 }
1d85f24b 460 if((chat = icmbstowcs(string, hub->charset)) == NULL)
d3372da9 461 {
462 if(wfrom != NULL)
463 free(wfrom);
464 free(wpeer);
465 return;
466 }
467 unquote(chat);
468 if(wfrom != NULL)
469 {
470 if((peer = fnetfindpeer(fn, wfrom)) == NULL) /* Assume public chat */
471 fnethandlechat(fn, 1, wfrom, wpeer, chat);
472 else
473 fnethandlechat(fn, 0, wfrom, wpeer, chat);
474 } else {
475 fnethandlechat(fn, 1, L"", wpeer, chat);
476 }
477 if(wfrom != NULL)
478 free(wfrom);
479 free(wpeer);
480 free(chat);
481}
482
1e9d82b1 483static void peertimeout(int cancelled, struct dcpeer *peer)
484{
485 peer->timeout = NULL;
486 if(cancelled)
487 return;
488 freedcpeer(peer);
489}
490
d3372da9 491static void sendadc(struct socket *sk, char *arg)
492{
493 char *buf;
494 size_t bufsize, bufdata;
495
496 buf = NULL;
497 bufsize = bufdata = 0;
498 addtobuf(buf, ' ');
499 for(; *arg; arg++)
500 {
501 if(*arg == ' ')
502 {
503 bufcat(buf, "\\s", 2);
504 } else if(*arg == '\n') {
505 bufcat(buf, "\\n", 2);
506 } else if(*arg == '\\') {
507 bufcat(buf, "\\\\", 2);
508 } else {
509 addtobuf(buf, *arg);
510 }
511 }
512 sockqueue(sk, buf, bufdata);
513 free(buf);
514}
515
dcf7a1a2
FT		 516#if defined(__GNUC__)
517static void __attribute__ ((format (printf, 2, 3))) sendadcf(struct socket *sk, char *arg, ...)
518#else
519static void sendadcf(struct socket *sk, char *arg, ...)
520#endif
d3372da9 521{
522 char *buf;
523 va_list args;
524
525 va_start(args, arg);
526 buf = vsprintf2(arg, args);
527 va_end(args);
528 if(buf == NULL)
529 return;
530 sendadc(sk, buf);
531 free(buf);
532}
533
534static char **parseadc(char *args)
535{
536 char **retbuf;
537 size_t retbufsize, retbufdata;
538 char *buf;
539 size_t bufsize, bufdata;
540 int state;
541
542 retbuf = NULL;
543 buf = NULL;
544 retbufsize = retbufdata = bufsize = bufdata = 0;
545 state = 0;
546 while(state != 3)
547 {
548 switch(state)
549 {
550 case 0:
551 if(*args == 0)
552 state = 3;
553 else if(*args != ' ')
554 state = 1;
555 break;
556 case 1:
557 if((*args == ' ') || (*args == 0))
558 {
559 addtobuf(buf, 0);
560 addtobuf(retbuf, buf);
561 buf = NULL;
562 bufsize = bufdata = 0;
563 if(*args == 0)
564 state = 3;
565 } else if(*args == '\\') {
566 state = 2;
567 } else {
568 addtobuf(buf, *args);
569 }
570 args++;
571 break;
572 case 2:
573 if(*args == 0)
574 {
575 if(buf != NULL)
576 free(buf);
577 addtobuf(retbuf, NULL);
578 freeparr(retbuf);
579 return(NULL);
f24d5cfb 580 } else if((*args == 's') || (*args == ' ')) {
d3372da9 581 addtobuf(buf, ' ');
582 } else if(*args == 'n') {
583 addtobuf(buf, '\n');
584 } else if(*args == '\\') {
585 addtobuf(buf, '\\');
586 }
a478552c 587 args++;
d3372da9 588 state = 1;
a478552c 589 break;
d3372da9 590 }
591 }
592 if(buf != NULL)
593 free(buf);
594 addtobuf(retbuf, NULL);
595 return(retbuf);
596}
597
598/* Macros useful in command handlers */
599#define skipspace(s) ({if(((s) = strchr((s), ' ')) == NULL) return; else (s)++;})
600#define qstr(sk, str) sockqueue(sk, str, strlen(str))
601#define qstrf(sk, strandargs...) \
602do { \
603 char *__buf__; \
604 if((__buf__ = sprintf2(strandargs)) != NULL) { \
605 sockqueue(sk, __buf__, strlen(__buf__)); \
606 free(__buf__); \
607 } \
608} while(0)
609
610static char *tr(char *str, char *trans)
611{
612 char *p;
613
614 for(; *trans; trans += 2)
615 {
616 for(p = strchr(str, trans[0]); p != NULL; p = strchr(p, trans[0]))
617 *p = trans[1];
618 }
619 return(str);
620}
621
9a2d6cb8 622static char *getadcid(struct dcpeer *peer)
623{
624 char *buf;
625 char *ret;
d57f938a 626 int isfilelist;
9a2d6cb8 627
2a157d1a 628 isfilelist = 0;
d57f938a 629 if(!wcscmp(peer->transfer->path, L"files.xml") || !wcscmp(peer->transfer->path, L"files.xml.bz2") || !wcscmp(peer->transfer->path, L"MyList.DcLst"))
630 isfilelist = 1;
631 if(!isfilelist && (peer->transfer->hash != NULL) && isdchash(peer->transfer->hash) && supports(peer, "tthf"))
9a2d6cb8 632 {
633 buf = base32encode(peer->transfer->hash->buf, 24);
634 ret = sprintf2("TTH/%.39s", buf);
635 free(buf);
636 } else {
040118de 637 ret = path2adc(peer->transfer->path);
9a2d6cb8 638 }
639 return(ret);
640}
641
642
d3372da9 643static int trresumecb(struct transfer *transfer, wchar_t *cmd, wchar_t *arg, struct dcpeer *peer)
644{
645 if(!wcscmp(cmd, L"resume"))
646 {
647 if(arg == NULL)
648 {
649 flog(LOG_WARNING, "filter returned no position for \"resume\" on transfer %i", transfer->id);
650 freedcpeer(peer);
651 } else {
349c52a9 652 transfer->curpos = wcstoll(arg, NULL, 10);
9a2d6cb8 653 peer->hascurpos = 1;
654 requestfile(peer);
d3372da9 655 }
d3372da9 656 return(1);
657 }
658 return(0);
659}
660
9a2d6cb8 661static void sendmynick(struct dcpeer *peer)
d3372da9 662{
1d85f24b 663 struct fnetnode *fn;
d3372da9 664
1d85f24b 665 fn = peer->fn;
666 if(fn == NULL)
667 qstrf(peer->sk, "$MyNick %s|", icswcstombs(confgetstr("cli", "defnick"), peer->charset, "DoldaConnectUser-IN"));
9a2d6cb8 668 else
1d85f24b 669 qstrf(peer->sk, "$MyNick %s|", icswcstombs(fn->mynick, peer->charset, "DoldaConnectUser-IN"));
9a2d6cb8 670}
671
672static void sendpeerlock(struct dcpeer *peer)
673{
1c4b02cd 674 if(peer->dcppemu)
675 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DCPLUSPLUS0.674ABCABC|");
676 else
677 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DOLDA%sABCABCABC|", VERSION);
9a2d6cb8 678}
679
680static void sendsupports(struct dcpeer *peer)
681{
4b544330 682 if(peer->dcppemu) {
1c4b02cd 683 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG |");
4b544330
FT		 684 } else {
685 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF");
686 if(!confgetint("dc", "hidedeflate"))
687 qstr(peer->sk, " GetZBlock ZLIG");
688 qstr(peer->sk, "|");
689 }
9a2d6cb8 690}
691
692static void requestfile(struct dcpeer *peer)
693{
694 char *buf;
695
696 if(peer->transfer->size == -1)
d3372da9 697 {
1d85f24b 698 /* Use DCCHARSET for $Get paths until further researched... */
040118de 699 if((buf = path2nmdc(peer->transfer->path, DCCHARSET)) == NULL)
d3372da9 700 {
9a2d6cb8 701 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 702 peer->close = 1;
d3372da9 703 return;
704 }
9a2d6cb8 705 /* The transfer will be restarted later from
706 * cmd_filelength when it detects that the sizes
707 * don't match. */
708 qstrf(peer->sk, "$Get %s$1|", buf);
040118de 709 free(buf);
9a2d6cb8 710 return;
d3372da9 711 }
9a2d6cb8 712 if((peer->transfer->hash == NULL) && !peer->notthl)
d3372da9 713 {
9a2d6cb8 714 if(supports(peer, "adcget") && supports(peer, "tthl"))
d3372da9 715 {
9a2d6cb8 716 qstr(peer->sk, "$ADCGET");
717 sendadc(peer->sk, "tthl");
718 if((buf = getadcid(peer)) == NULL)
d3372da9 719 {
9a2d6cb8 720 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 721 peer->close = 1;
d3372da9 722 return;
723 }
9a2d6cb8 724 sendadc(peer->sk, buf);
725 free(buf);
726 sendadc(peer->sk, "0");
727 sendadc(peer->sk, "-1");
728 qstr(peer->sk, "|");
df873cd0 729 peer->fetchingtthl = 1;
9a2d6cb8 730 return;
731 }
732 }
733 if(!peer->hascurpos)
734 {
735 if(forkfilter(peer->transfer))
736 {
737 flog(LOG_WARNING, "could not fork filter for transfer %i: %s", peer->transfer->id, strerror(errno));
2bf4942d 738 peer->close = 1;
9a2d6cb8 739 return;
d3372da9 740 }
9a2d6cb8 741 CBREG(peer->transfer, trans_filterout, (int (*)(struct transfer *, wchar_t *, wchar_t *, void *))trresumecb, NULL, peer);
742 return;
743 }
744 if(supports(peer, "adcget"))
745 {
746 qstr(peer->sk, "$ADCGET");
747 sendadc(peer->sk, "file");
748 if((buf = getadcid(peer)) == NULL)
749 {
750 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 751 peer->close = 1;
9a2d6cb8 752 return;
753 }
754 sendadc(peer->sk, buf);
755 free(buf);
dcf7a1a2
FT		 756 sendadcf(peer->sk, "%ji", (intmax_t)peer->transfer->curpos);
757 sendadcf(peer->sk, "%ji", (intmax_t)(peer->transfer->size - peer->transfer->curpos));
9a2d6cb8 758 qstr(peer->sk, "|");
759 } else if(supports(peer, "xmlbzlist")) {
040118de 760 if((buf = path2nmdc(peer->transfer->path, "UTF-8")) == NULL)
9a2d6cb8 761 {
762 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 763 peer->close = 1;
9a2d6cb8 764 return;
765 }
dcf7a1a2 766 qstrf(peer->sk, "$UGetBlock %ji %ji %s|", (intmax_t)peer->transfer->curpos, (intmax_t)(peer->transfer->size - peer->transfer->curpos), buf);
040118de 767 free(buf);
d3372da9 768 } else {
1d85f24b 769 /* Use DCCHARSET for $Get paths until further researched... */
040118de 770 if((buf = path2nmdc(peer->transfer->path, DCCHARSET)) == NULL)
d3372da9 771 {
9a2d6cb8 772 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 773 peer->close = 1;
9a2d6cb8 774 return;
d3372da9 775 }
dcf7a1a2 776 qstrf(peer->sk, "$Get %s$%ji|", buf, (intmax_t)peer->transfer->curpos + 1);
040118de 777 free(buf);
d3372da9 778 }
779}
780
781static void sendmyinfo(struct socket *sk, struct fnetnode *fn)
782{
783 struct dchub *hub;
784 char *buf;
785 struct fnetnode *cfn;
69757b8c 786 int hn1, hn2, hn3;
d3372da9 787
788 hub = fn->data;
789 qstrf(sk, "$MyINFO $ALL %s ", hub->nativenick);
1d85f24b 790 buf = tr(icswcstombs(confgetstr("dc", "desc"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 791 qstrf(sk, "%s", buf);
69757b8c 792 hn1 = hn2 = hn3 = 0;
d3372da9 793 for(cfn = fnetnodes; cfn != NULL; cfn = cfn->next)
794 {
795 if((cfn->state == FNN_EST) || (cfn->state == FNN_HS))
69757b8c 796 {
797 if(cfn->regstatus == FNNS_OP)
798 hn3++;
799 else if(cfn->regstatus == FNNS_REG)
800 hn2++;
801 else
802 hn1++;
803 }
d3372da9 804 }
69757b8c 805 qstrf(sk, "<%s V:%s,M:%c,H:%i/%i/%i,S:%i>",
1c4b02cd 806 (hub->dcppemu)?"++":"Dolda",
807 (hub->dcppemu)?"0.674":VERSION,
d3372da9 808 (tcpsock == NULL)?'P':'A',
69757b8c 809 hn1, hn2, hn3,
d3372da9 810 confgetint("transfer", "slots")
811 );
812 qstrf(sk, "$ $");
1d85f24b 813 buf = tr(icswcstombs(confgetstr("dc", "speedstring"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 814 qstrf(sk, "%s\x01$", buf);
1d85f24b 815 buf = tr(icswcstombs(confgetstr("dc", "email"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 816 qstrf(sk, "%s$", buf);
817 qstrf(sk, "%llu$|", sharesize);
818}
819
820static void hubhandleaction(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
821{
822 struct dchub *hub;
823
824 hub = fn->data;
825 if(!strcmp(cmd, "$Lock"))
826 {
827 qstrf(sk, "$ValidateNick %s|", hub->nativenick);
828 } else if(!strcmp(cmd, "$Hello")) {
829 if(fn->state == FNN_HS)
830 {
831 qstrf(sk, "$Version 1,0091|");
832 qstrf(sk, "$GetNickList|");
833 sendmyinfo(sk, fn);
834 fnetsetstate(fn, FNN_EST);
835 } else {
836 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
837 }
838 }
839}
840
841static void cmd_lock(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
842{
843 struct dchub *hub;
844 char *key;
845 char *p;
846
847 hub = fn->data;
848 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
849 hub->extended = 1;
850 if((p = strchr(args, ' ')) != NULL)
851 *(p++) = 0;
852 if(hub->extended)
853 {
4b544330 854 if(hub->dcppemu) {
1c4b02cd 855 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock |");
4b544330
FT		 856 } else {
857 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch");
858 if(!confgetint("dc", "hidedeflate"))
859 qstr(sk, " GetZBlock");
860 qstr(sk, "|");
861 }
d3372da9 862 }
863 key = dcmakekey(args);
864 qstrf(sk, "$Key %s|", key);
865 free(key);
866 hubhandleaction(sk, fn, cmd, args);
867}
868
869static void cmd_hubname(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
870{
871 wchar_t *buf;
872 struct dchub *hub;
873
874 hub = fn->data;
875 if(hub->nativename == NULL)
876 free(hub->nativename);
877 hub->nativename = sstrdup(args);
1d85f24b 878 buf = icmbstowcs(args, hub->charset);
d3372da9 879 fnetsetname(fn, (buf == NULL)?L"Hubname conv error":buf);
880 if(buf != NULL)
881 free(buf);
882 hubhandleaction(sk, fn, cmd, args);
883}
884
885static void cmd_hello(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
886{
887 wchar_t *nick;
888 struct dchub *hub;
889
890 hub = fn->data;
1d85f24b 891 if((nick = icmbstowcs(args, hub->charset)) == NULL)
d3372da9 892 return;
893 if(strcmp(args, hub->nativenick) && (fnetfindpeer(fn, nick) == NULL))
894 fnetaddpeer(fn, nick, nick);
895 free(nick);
896 hubhandleaction(sk, fn, cmd, args);
897}
898
899static void cmd_quit(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
900{
901 wchar_t *nick;
902 struct fnetpeer *peer;
903 struct dchub *hub;
904
905 hub = fn->data;
1d85f24b 906 if((nick = icmbstowcs(args, hub->charset)) == NULL)
d3372da9 907 return;
908 if((peer = fnetfindpeer(fn, nick)) != NULL)
909 fnetdelpeer(peer);
910 free(nick);
911 hubhandleaction(sk, fn, cmd, args);
912}
913
914static void cmd_nicklist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
915{
916 struct dchub *hub;
917 char *p;
918 wchar_t *buf;
0e227c1d 919 struct fnetpeer *peer;
d3372da9 920
921 hub = fn->data;
0e227c1d 922 for(peer = btreeiter(fn->peers); peer != NULL; peer = btreeiter(NULL))
d3372da9 923 peer->flags.b.delete = 1;
924 while((p = strstr(args, "$$")) != NULL)
925 {
926 *p = 0;
1d85f24b 927 if((buf = icmbstowcs(args, hub->charset)) != NULL)
d3372da9 928 {
929 if((peer = fnetfindpeer(fn, buf)) == NULL)
930 peer = fnetaddpeer(fn, buf, buf);
931 else
932 peer->flags.b.delete = 0;
933 free(buf);
934 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
935 }
936 args = p + 2;
937 }
0e227c1d 938 fnetpeerdm(fn);
d3372da9 939 hubhandleaction(sk, fn, cmd, args);
940}
941
942static void cmd_oplist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
943{
944 struct dchub *hub;
945 char *p;
946 wchar_t *buf;
947 struct fnetpeer *peer;
948
949 hub = fn->data;
0e227c1d 950 for(peer = btreeiter(fn->peers); peer != NULL; peer = btreeiter(NULL))
d3372da9 951 peer->flags.b.op = 0;
952 while((p = strstr(args, "$$")) != NULL)
953 {
954 *p = 0;
1d85f24b 955 if((buf = icmbstowcs(args, hub->charset)) != NULL)
d3372da9 956 {
957 if((peer = fnetfindpeer(fn, buf)) != NULL)
958 peer->flags.b.op = 1;
959 free(buf);
960 }
961 args = p + 2;
962 }
963 hubhandleaction(sk, fn, cmd, args);
964}
965
966static void cmd_myinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
967{
968 char *p, *p2;
969 wchar_t *buf, *wp, *wp2;
970 wchar_t abuf[10];
971 struct fnetpeer *peer;
972 struct dchub *hub;
973
974 hub = fn->data;
975 p = args;
976 if(strncmp(p, "$ALL ", 5))
977 return;
978 p += 5;
979 if((p2 = strchr(p, ' ')) == NULL)
980 return;
981 *p2 = 0;
1d85f24b 982 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 983 return;
984 if((peer = fnetfindpeer(fn, buf)) == NULL)
985 peer = fnetaddpeer(fn, buf, buf);
986 free(buf);
987 p = p2 + 1;
988 if((p2 = strstr(p, "$ $")) == NULL)
989 return;
990 *p2 = 0;
1d85f24b 991 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 992 return;
316e9a13 993 if((wcslen(buf) > 0) && (buf[wcslen(buf) - 1] == L'>') && ((wp = wcsrchr(buf, L'<')) != NULL))
d3372da9 994 {
995 buf[wcslen(buf) - 1] = L'\0';
996 *(wp++) = L'\0';
997 if((wp2 = wcschr(wp, L' ')) != NULL)
998 {
999 *(wp2++) = L'\0';
1000 fnetpeersetstr(peer, L"dc-client", wp);
1001 wp = wp2;
1002 do
1003 {
1004 if((wp2 = wcschr(wp, L',')) != NULL)
1005 *(wp2++) = L'\0';
1006 if(wp[1] != L':')
1007 continue;
1008 swprintf(abuf, 10, L"dc-tag-%lc", wp[0]);
1009 fnetpeersetstr(peer, abuf, wp + 2);
1010 wp = wp2;
1011 } while(wp2 != NULL);
1012 }
1013 }
1014 fnetpeersetstr(peer, L"descr", buf);
1015 free(buf);
1016 p = p2 + 3;
1017 if((p2 = strchr(p, '$')) == NULL)
1018 return;
1019 *(p2 - 1) = 0;
1d85f24b 1020 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 1021 return;
1022 fnetpeersetstr(peer, L"dc-speed", buf);
1023 free(buf);
1024 p = p2 + 1;
1025 if((p2 = strchr(p, '$')) == NULL)
1026 return;
1027 *p2 = 0;
1d85f24b 1028 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 1029 return;
1030 fnetpeersetstr(peer, L"email", buf);
1031 free(buf);
1032 p = p2 + 1;
1033 if(strlen(p) < 1)
1034 return;
1035 fnetpeersetlnum(peer, L"share", strtoll(p, NULL, 10));
1036 hubhandleaction(sk, fn, cmd, args);
1037}
1038
1039/* I do not implement the fully in that I do not disconnect from the
1040 * old hub. I do this since I believe that if the hub owner really
1041 * wants to get rid of us, then it is his responsibility to disconnect
1042 * us. */
1043static void cmd_forcemove(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1044{
1045 struct dchub *hub;
1046 struct fnetnode *newfn;
1047 int freeargs;
1048
1049 hub = fn->data;
1050 if(strchr(args, ':') == NULL)
1051 {
1052 args = strcpy(smalloc(strlen(args) + 5), args);
1053 strcat(args, ":411");
1054 freeargs = 1;
1055 } else {
1056 freeargs = 0;
1057 }
a3a4a3a7 1058 if((newfn = fnetinitconnect(L"dc", fn->owner, args, NULL)) != NULL)
d3372da9 1059 {
1060 linkfnetnode(newfn);
1061 putfnetnode(newfn);
1062 }
1063 hubhandleaction(sk, fn, cmd, args);
1064 if(freeargs)
1065 free(args);
1066}
1067
1d85f24b 1068static char *getdcpath(struct sharecache *node, size_t *retlen, char *charset)
d3372da9 1069{
1070 char *buf, *buf2;
1071 size_t len, len2;
1072
1073 if(node->parent == NULL)
1074 return(NULL);
1075 if(node->parent == shareroot)
1076 {
1d85f24b 1077 if((buf = icwcstombs(node->name, charset)) == NULL)
d3372da9 1078 return(NULL);
1079 if(retlen != NULL)
1080 *retlen = strlen(buf);
1081 return(buf);
1082 } else {
1d85f24b 1083 if((buf2 = icwcstombs(node->name, charset)) == NULL)
d3372da9 1084 return(NULL);
1d85f24b 1085 if((buf = getdcpath(node->parent, &len, charset)) == NULL)
d3372da9 1086 {
1087 free(buf2);
1088 return(NULL);
1089 }
1090 len2 = strlen(buf2);
1091 buf = srealloc(buf, len + 1 + len2 + 1);
1092 buf[len++] = '\\';
1093 strcpy(buf + len, buf2);
1094 buf[len + len2] = 0;
1095 free(buf2);
1096 if(retlen != NULL)
1097 *retlen = len + len2;
1098 return(buf);
1099 }
1100}
1101
1102/*
1103 * This is the main share searching function for Direct Connect
1104 * peers. Feel free to optimize it if you feel the need for it. I
1105 * haven't ever seen it take any noticable CPU time anyway, so I
1106 * haven't felt that need.
1107 *
1108 * It may feel dubious to just return the directory when all terms are
1109 * satisfied rather than all the files in it, but it really benefits
1110 * everyone: Less cycles used for us, less UDP squelching for active
1111 * searchers, and less bandwidth waste for hubs when serving passive
1112 * searchers.
1113 */
1114static void cmd_search(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1115{
1116 int i, done;
1117 struct dchub *hub;
1118 char *p, *p2;
1119 char *prefix, *infix, *postfix, *buf, *buf2;
1120 struct socket *dsk;
1121 struct sockaddr_in addr;
1122 struct sharecache *node;
1123 int minsize, maxsize;
c7185019 1124 int dotth;
1125 size_t buflen;
d3372da9 1126 int termnum, satisfied, skipcheck;
1127 int level, tersat[32];
8bdbfebe 1128 wchar_t *terms[32], *lname;
d3372da9 1129 char hashtth[24];
1130
1131 hub = fn->data;
1132 if((p = strchr(args, ' ')) == NULL)
1133 return;
1134 *(p++) = 0;
1135
1136 memset(terms, 0, sizeof(terms));
1137 prefix = infix = postfix = NULL;
1138 dsk = NULL;
1139 dotth = 0;
1140
1141 if(!strncmp(args, "Hub:", 4))
1142 {
1143 if(!strcmp(cmd, "$MultiSearch"))
1144 goto out;
1145 if(!strcmp(args + 4, hub->nativenick))
1146 goto out;
1147 prefix = sprintf2("$SR %s ", hub->nativenick);
1148 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
d1ef0200 1149 postfix = sprintf2(" (%s)\005%s|", formatsockpeer(hub->sk), args + 4);
d3372da9 1150 dsk = sk;
1151 getsock(dsk);
1152 } else {
1153 if((p2 = strchr(args, ':')) == NULL)
1154 goto out;
1155 *(p2++) = 0;
1156 addr.sin_family = AF_INET;
1157 if(!inet_aton(args, &addr.sin_addr))
1158 goto out;
1159 addr.sin_port = htons(atoi(p2));
1160 prefix = sprintf2("$SR %s ", hub->nativenick);
1161 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
d1ef0200
FT		 1162 postfix = sprintf2(" (%s)|", formatsockpeer(hub->sk));
1163 dsk = netdgramconn(udpsock, (struct sockaddr *)&addr, sizeof(addr));
d3372da9 1164 }
1165
1166 minsize = maxsize = -1;
1167 if(*p == 0)
1168 goto out;
1169 if(*(p++) == 'T')
1170 minsize = 0;
1171 if(*(p++) != '?')
1172 goto out;
1173 if(*p == 0)
1174 goto out;
9d8cf743 1175 if((*(p++) == 'T') && (minsize == 0))
d3372da9 1176 {
1177 maxsize = 0;
1178 minsize = -1;
1179 }
1180 if(*(p++) != '?')
1181 goto out;
1182 if((p2 = strchr(p, '?')) == NULL)
1183 goto out;
1184 *(p2++) = 0;
1185 if(minsize == 0)
1186 minsize = atoi(p);
1187 if(maxsize == 0)
1188 maxsize = atoi(p);
1189 p = p2 + 1;
1190 if(*(p++) != '?')
1191 goto out;
1192 termnum = 0;
1193 p2 = p;
1194 done = 0;
1195 while(!done)
1196 {
1197 if((*p2 == 0) || (*p2 == '$'))
1198 {
1199 if(*p2 == 0)
1200 done = 1;
1201 else
1202 *p2 = 0;
1203 if(*p)
1204 {
1205 if(!dotth && !strncmp(p, "TTH:", 4))
1206 {
1207 dotth = 1;
2dd01e6e 1208 if(((buf = base32decode(p + 4, &buflen)) == NULL) || (buflen != 24))
1209 {
1210 free(buf);
d3372da9 1211 goto out;
2dd01e6e 1212 }
d3372da9 1213 memcpy(hashtth, buf, 24);
1214 free(buf);
1215 } else {
8bdbfebe
FT		 1216 if((terms[termnum] = icmbstowcs(p, hub->charset)) != NULL) {
1217 wcslower(terms[termnum]);
d3372da9 1218 termnum++;
8bdbfebe 1219 }
d3372da9 1220 }
1221 }
1222 p = p2 + 1;
1223 if(termnum == 32)
1224 break;
1225 }
1226 p2++;
1227 }
1228
1229 node = shareroot->child;
1230 level = 0;
1231 for(i = 0; i < termnum; i++)
1232 tersat[i] = -1;
1233 satisfied = 0;
1234 while(1)
1235 {
1236 skipcheck = 0;
1237 if(node->f.b.type == FILE_REG)
1238 {
1239 if((minsize >= 0) && (node->size < minsize))
1240 skipcheck = 1;
1241 if((maxsize >= 0) && (node->size > maxsize))
1242 skipcheck = 1;
1243 }
1244 if(!skipcheck && dotth)
1245 {
1246 if((node->f.b.type != FILE_REG) || (node->f.b.hastth && memcmp(hashtth, node->hashtth, 24)))
1247 skipcheck = 1;
1248 }
1249 if(!skipcheck)
1250 {
8bdbfebe 1251 lname = wcslower(swcsdup(node->name));
d3372da9 1252 for(i = 0; i < termnum; i++)
1253 {
1254 if(tersat[i] >= 0)
1255 continue;
8bdbfebe 1256 if(wcsstr(lname, terms[i]))
d3372da9 1257 {
1258 tersat[i] = level;
1259 satisfied++;
1260 } else if(node->child == NULL) {
1261 break;
1262 }
1263 }
8bdbfebe 1264 free(lname);
d3372da9 1265 }
1266 if(!skipcheck && (satisfied == termnum))
1267 {
1d85f24b 1268 /* Use DCCHARSET in $Get paths until further researched... */
1269 if((buf = getdcpath(node, NULL, DCCHARSET)) != NULL)
d3372da9 1270 {
1271 if(node->f.b.hastth)
1272 {
1273 buf2 = base32encode(node->hashtth, 24);
dcf7a1a2 1274 qstrf(dsk, "%s%s\005%ji%sTTH:%.39s%s", prefix, buf, (intmax_t)node->size, infix, buf2, postfix);
d3372da9 1275 free(buf2);
1276 } else {
dcf7a1a2 1277 qstrf(dsk, "%s%s\005%ji%s%s%s", prefix, buf, (intmax_t)node->size, infix, hub->nativename, postfix);
d3372da9 1278 }
1279 free(buf);
1280 }
1281 }
1282 if((!skipcheck && (satisfied == termnum)) || (node->child == NULL))
1283 {
1284 while(node->next == NULL)
1285 {
1286 if((node = node->parent) == shareroot)
1287 break;
1288 level--;
1289 }
1290 if(node == shareroot)
1291 break;
1292 for(i = 0; i < termnum; i++)
1293 {
1294 if(tersat[i] >= level)
1295 {
1296 tersat[i] = -1;
1297 satisfied--;
1298 }
1299 }
1300 node = node->next;
1301 } else {
1302 node = node->child;
1303 level++;
1304 }
1305 }
1306
1307 hubhandleaction(sk, fn, cmd, args);
1308
1309 out:
1310 if(dsk != NULL)
1311 putsock(dsk);
1312 if(prefix != NULL)
1313 free(prefix);
1314 if(infix != NULL)
1315 free(infix);
1316 if(postfix != NULL)
1317 free(postfix);
1318 for(i = 0; (i < 32) && (terms[i] != NULL); i++)
1319 free(terms[i]);
1320}
1321
1322static void cmd_connecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1323{
1324 char *p;
1325 struct dchub *hub;
1326 struct socket *newsk;
1327 struct sockaddr_in addr;
1328
1329 hub = fn->data;
1330 if((p = strchr(args, ' ')) == NULL)
1331 return;
1332 *(p++) = 0;
1333 if(strcmp(args, hub->nativenick))
1334 return;
1335 addr.sin_family = AF_INET;
1336 args = p;
1337 if((p = strchr(args, ':')) == NULL)
1338 return;
1339 *(p++) = 0;
1340 addr.sin_port = htons(atoi(p));
1341 if(!inet_aton(args, &addr.sin_addr))
1342 return;
cab0b442 1343 newsk = netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn);
d3372da9 1344 getfnetnode(fn);
1345 hubhandleaction(sk, fn, cmd, args);
1346}
1347
1348static void sendctm(struct socket *sk, char *nick)
1349{
1350 struct sockaddr *addr;
1351 socklen_t addrlen;
1352
1353 if(tcpsock == NULL)
1354 return;
f96d0914 1355 if(lstgetremotename2(tcpsock, sk, &addr, &addrlen) < 0)
d3372da9 1356 return;
1357 if(addr->sa_family == AF_INET)
1358 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1359 else
1360 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1361 free(addr);
1362}
1363
1364static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1365{
1366 struct dchub *hub;
1367 char *p;
1368
1369 hub = fn->data;
1370 if((p = strchr(args, ' ')) == NULL)
1371 return;
1372 *(p++) = 0;
1373 if(strcmp(p, hub->nativenick))
1374 return;
1375 sendctm(sk, args);
1376 expectpeer(args, fn);
1377 hubhandleaction(sk, fn, cmd, args);
1378}
1379
1380static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1381{
1382 struct dchub *hub;
1383 struct fnetnode *node;
1384 int numhubs;
1385
1386 hub = fn->data;
1387 numhubs = 0;
1388 for(node = fnetnodes; node != NULL; node = node->next)
1389 {
1390 if(node->state == FNN_EST)
1391 numhubs++;
1392 }
1393 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1394 hubhandleaction(sk, fn, cmd, args);
1395}
1396
1397static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1398{
1399 struct dchub *hub;
1400 char *p, *p2;
1401
1402 hub = fn->data;
1403 p = args;
1404 if((p2 = strchr(p, ' ')) == NULL)
1405 return;
1406 *(p2++) = 0;
1407 p = p2;
1408 if((p2 = strchr(p, ' ')) == NULL)
1409 return;
1410 *(p2++) = 0;
1411 if(strcmp(p, "From:"))
1412 return;
1413 p = p2;
1414 if((p2 = strstr(p, " $")) == NULL)
1415 return;
1416 *p2 = 0;
1417 p2 += 2;
ffa81d5f 1418 hubrecvchat(hub->sk, fn, p, p2);
d3372da9 1419 hubhandleaction(sk, fn, cmd, args);
1420}
1421
1422static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1423{
1424 struct dchub *hub;
d86b7a9f 1425 char *p, *p2, *buf;
d3372da9 1426 char *nick, *filename, *hubname;
dcf7a1a2
FT		 1427 off_t size;
1428 int slots;
d86b7a9f 1429 size_t buflen;
d3372da9 1430 struct srchres *sr;
1431 wchar_t *wnick, *wfile;
1432
1433 hub = fn->data;
1434 nick = p = args;
1435 if((p2 = strchr(p, ' ')) == NULL)
1436 return;
1437 *p2 = 0;
1438 p = p2 + 1;
1439 filename = p;
1440 if((p2 = strchr(p, 5)) == NULL)
1441 return;
1442 *p2 = 0;
1443 p = p2 + 1;
1444 if((p2 = strchr(p, ' ')) == NULL)
1445 return;
1446 *p2 = 0;
dcf7a1a2 1447 size = strtoll(p, NULL, 10);
d3372da9 1448 p = p2 + 1;
1449 if((p2 = strchr(p, '/')) == NULL)
1450 return;
1451 *p2 = 0;
1452 slots = atoi(p);
1453 p = p2 + 1;
1454 if((p2 = strchr(p, 5)) == NULL)
1455 return;
1456 p = p2 + 1;
1457 hubname = p;
1458 if((p2 = strstr(p, " (")) == NULL)
1459 return;
1460 *p2 = 0;
1d85f24b 1461 if((wnick = icmbstowcs(nick, hub->charset)) == NULL)
d3372da9 1462 return;
1d85f24b 1463 /* Use DCCHARSET in $Get paths until further researched... */
040118de 1464 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 1465 {
1466 free(wnick);
1467 return;
1468 }
1469 sr = newsrchres(&dcnet, wfile, wnick);
1470 if(sr->peernick != NULL)
1471 free(sr->peernick);
1472 sr->peernick = swcsdup(wnick);
1473 sr->size = size;
1474 sr->slots = slots;
1475 free(wfile);
1476 free(wnick);
d86b7a9f 1477 if(!strncmp(hubname, "TTH:", 4))
1478 {
1479 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1480 {
1481 if(buflen == 24)
1482 sr->hash = newhash(L"TTH", 24, buf);
1483 free(buf);
1484 }
1485 }
d3372da9 1486 getfnetnode(sr->fn = fn);
1487 submitsrchres(sr);
1488 freesrchres(sr);
1489 hubhandleaction(sk, fn, cmd, args);
1490}
1491
1492static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1493{
1494 /* Do nothing for now. */
1495}
1496
48509089 1497static void cmd_getpass(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1498{
1499 struct dchub *hub;
1c4b02cd 1500 wchar_t *pw;
48509089 1501 char *mbspw;
1502
1503 hub = fn->data;
1c4b02cd 1504 pw = wpfind(fn->args, L"password");
1d85f24b 1505 if((pw == NULL) || ((mbspw = icwcstombs(pw, hub->charset)) == NULL))
48509089 1506 {
1507 killfnetnode(fn);
1508 return;
1509 }
1510 qstrf(sk, "$MyPass %s|", mbspw);
1511 free(mbspw);
fcd0627b 1512 fn->regstatus = FNNS_REG;
48509089 1513 hubhandleaction(sk, fn, cmd, args);
1514}
1515
c9b3ad74 1516static void cmd_logedin(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1517{
1518 struct dchub *hub;
1519
1520 hub = fn->data;
fcd0627b 1521 fn->regstatus = FNNS_OP;
c9b3ad74 1522 hubhandleaction(sk, fn, cmd, args);
1523}
1524
08b74f8c
FT		 1525static void cmd_hubsupports(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1526{
1527 struct dchub *hub;
1528 int i;
1529 char *p, *p2;
1530 char **arr;
1531 size_t arrsize, arrdata;
1532
1533 hub = fn->data;
1534 if(hub->supports != NULL)
1535 {
1536 for(i = 0; hub->supports[i] != NULL; i++)
1537 free(hub->supports[i]);
1538 free(hub->supports);
1539 }
1540 arr = NULL;
1541 arrsize = arrdata = 0;
1542 p = args;
1543 do
1544 {
1545 if((p2 = strchr(p, ' ')) != NULL)
1546 *(p2++) = 0;
1547 if(*p == 0)
1548 continue;
1549 addtobuf(arr, sstrdup(p));
1550 } while((p = p2) != NULL);
1551 addtobuf(arr, NULL);
1552 hub->supports = arr;
1553}
1554
d3372da9 1555static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1556{
9a2d6cb8 1557 struct dcexppeer *expect;
1c4b02cd 1558 struct dchub *hub;
9a2d6cb8 1559
d3372da9 1560 if(peer->nativename != NULL)
1561 free(peer->nativename);
1562 peer->nativename = sstrdup(args);
1563 if(peer->wcsname != NULL)
1564 free(peer->wcsname);
1d85f24b 1565 if((peer->wcsname = icmbstowcs(peer->nativename, peer->charset)) == NULL)
d3372da9 1566 {
2bf4942d 1567 peer->close = 1;
d3372da9 1568 return;
1569 }
9a2d6cb8 1570 if(peer->accepted)
1571 {
1572 for(expect = expected; expect != NULL; expect = expect->next)
1573 {
1574 if(!strcmp(expect->nick, args))
1575 break;
1576 }
1577 if(expect == NULL)
1578 {
1579 peer->fn = NULL;
1580 } else {
1c4b02cd 1581 hub = expect->fn->data;
9a2d6cb8 1582 peer->fn = expect->fn;
1583 getfnetnode(peer->fn);
1c4b02cd 1584 peer->dcppemu = hub->dcppemu;
9a2d6cb8 1585 freeexppeer(expect);
1586 }
1587 }
d3372da9 1588}
1589
1590static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1591{
1592 char *p;
9a2d6cb8 1593 int mydir;
1594 struct transfer *transfer;
d3372da9 1595
1596 if((p = strchr(args, ' ')) == NULL)
1597 return;
1598 *p = 0;
1599 if(!strcmp(args, "Upload"))
9a2d6cb8 1600 mydir = TRNSD_DOWN;
d3372da9 1601 if(!strcmp(args, "Download"))
9a2d6cb8 1602 mydir = TRNSD_UP;
1603 if(peer->accepted)
1604 {
1605 if((peer->transfer == NULL) || (mydir != peer->direction))
1606 {
2bf4942d 1607 peer->close = 1;
9a2d6cb8 1608 return;
1609 }
1b14d3d8 1610 if(peer->direction == TRNSD_DOWN)
1611 requestfile(peer);
9a2d6cb8 1612 } else {
1613 if(peer->wcsname == NULL)
1614 {
2bf4942d 1615 peer->close = 1;
9a2d6cb8 1616 return;
1617 }
1618 peer->direction = mydir;
1619 if(peer->direction == TRNSD_UP)
1620 {
01663fd9 1621 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1622 {
2bf4942d 1623 peer->close = 1;
01663fd9 1624 return;
1625 }
1ff9e8ea 1626 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1627 } else {
1628 if((transfer = finddownload(peer->wcsname)) == NULL)
1629 {
2bf4942d 1630 peer->close = 1;
9a2d6cb8 1631 return;
1632 }
1ff9e8ea 1633 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1634 transfersetstate(transfer, TRNS_HS);
1635 }
1636 transfersetnick(transfer, peer->wcsname);
1637 peer->transfer = transfer;
1638 if(peer->extended)
1639 sendsupports(peer);
1640 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1641 if(peer->key != NULL)
1642 qstrf(sk, "$Key %s|", peer->key);
1643 if(peer->direction == TRNSD_DOWN)
1644 requestfile(peer);
1645 }
d3372da9 1646}
1647
1648static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1649{
9a2d6cb8 1650 char *p, *key;
1651 struct transfer *transfer;
d3372da9 1652
1653 if((p = strchr(args, ' ')) == NULL)
1654 return;
1655 *p = 0;
1656 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1657 peer->extended = 1;
9a2d6cb8 1658 key = dcmakekey(args);
1659 if(peer->accepted)
1660 {
1661 if(peer->wcsname == NULL)
1662 {
2bf4942d 1663 peer->close = 1;
9a2d6cb8 1664 return;
1665 }
1666 sendmynick(peer);
1667 sendpeerlock(peer);
1668 if(peer->extended)
1669 sendsupports(peer);
1670 if((transfer = finddownload(peer->wcsname)) == NULL)
1671 {
01663fd9 1672 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1673 {
2bf4942d 1674 peer->close = 1;
01663fd9 1675 return;
1676 }
9a2d6cb8 1677 peer->direction = TRNSD_UP;
1ff9e8ea 1678 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1679 } else {
1680 peer->direction = TRNSD_DOWN;
1ff9e8ea 1681 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1682 transfersetstate(transfer, TRNS_HS);
1683 }
1684 transfersetnick(transfer, peer->wcsname);
1685 peer->transfer = transfer;
1686 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1687 qstrf(sk, "$Key %s|", key);
62da2712 1688 free(key);
9a2d6cb8 1689 } else {
1690 if(peer->key != NULL)
1691 free(peer->key);
1692 peer->key = key;
1693 }
d3372da9 1694}
1695
1696static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1697{
9a2d6cb8 1698 /* NOP */
1699}
1700
1701static void startdl(struct dcpeer *peer)
1702{
1e9d82b1 1703 if(peer->timeout != NULL)
1704 canceltimer(peer->timeout);
9a2d6cb8 1705 peer->state = PEER_TRNS;
1706 transferstartdl(peer->transfer, peer->sk);
cab0b442 1707 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1708 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
9a2d6cb8 1709}
1710
1711static void startul(struct dcpeer *peer)
1712{
1e9d82b1 1713 if(peer->timeout != NULL)
1714 canceltimer(peer->timeout);
9a2d6cb8 1715 peer->state = PEER_TRNS;
1716 transferstartul(peer->transfer, peer->sk);
cab0b442 1717 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
d3372da9 1718}
1719
1720static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1721{
dcf7a1a2 1722 off_t size;
1fc81821 1723 struct transfer *transfer;
d3372da9 1724
1725 if(peer->transfer == NULL)
1726 {
2bf4942d 1727 peer->close = 1;
d3372da9 1728 return;
1729 }
dcf7a1a2 1730 size = strtoll(args, NULL, 10);
9a2d6cb8 1731 if(peer->transfer->size != size)
d3372da9 1732 {
d3372da9 1733 transfersetsize(peer->transfer, size);
1fc81821 1734 transfer = peer->transfer;
2bf4942d
FT		 1735 peer->close = 1;
1736 resettransfer(transfer);
1fc81821 1737 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 1738 return;
1739 }
9a2d6cb8 1740 startdl(peer);
1741 qstr(peer->sk, "$Send|");
d3372da9 1742}
1743
1744static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1745{
df873cd0 1746 if(peer->fetchingtthl)
1747 {
1748 peer->fetchingtthl = 0;
1749 peer->notthl = 1;
1750 requestfile(peer);
1751 return;
1752 }
d3372da9 1753 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1754 {
1755 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1756 resettransfer(peer->transfer);
1757 return;
1758 }
2bf4942d 1759 peer->close = 1;
d3372da9 1760}
1761
1762static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1763{
1764 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1765 {
1766 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1767 resettransfer(peer->transfer);
1768 return;
1769 }
2bf4942d 1770 peer->close = 1;
d3372da9 1771}
1772
1773static struct
1774{
1775 char *name;
1776 char **file;
1777 void (*func)(void);
1778} lists[] =
1779{
1780 {"MyList.DcLst", &hmlistname, updatehmlist},
1781 {"files.xml", &xmllistname, updatexmllist},
1782 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1783 {NULL, NULL}
1784};
1785
1786static int openfilelist(char *name)
1787{
1788 int i, fd;
1789 int errnobak;
1790
1791 for(i = 0; lists[i].name != NULL; i++)
1792 {
1793 if(!strcmp(name, lists[i].name))
1794 break;
1795 }
1796 errno = 0;
1797 if(lists[i].name == NULL)
1798 return(-1);
1799 fd = -1;
1800 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1801 lists[i].func();
1802 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1803 {
1804 errnobak = errno;
1805 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1806 errno = errnobak;
1807 return(-1);
1808 }
1809 return(fd);
1810}
1811
1812static struct sharecache *findbytth(char *tth32)
1813{
1814 char *buf;
1815 size_t buflen;
1816 struct sharecache *node;
1817
1818 if((buf = base32decode(tth32, &buflen)) == NULL)
1819 return(NULL);
1820 if(buflen != 24)
1821 {
1822 free(buf);
1823 return(NULL);
1824 }
1825 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1826 {
1827 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1828 break;
1829 }
1830 free(buf);
1831 return(node);
1832}
1833
1834static struct sharecache *resdcpath(char *path, char *charset, char sep)
1835{
1836 struct sharecache *node;
1837 char *p, *p2;
1838
1839 node = shareroot;
1840 p = path;
1841 while(p != NULL)
1842 {
1843 if((p2 = strchr(p, sep)) != NULL)
1844 *(p2++) = 0;
1845 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1846 return(NULL);
1847 p = p2;
1848 }
1849 return(node);
1850}
1851
1852static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1853{
dcf7a1a2 1854 off_t offset;
d3372da9 1855 char *p, *buf;
1856 wchar_t *buf2;
1857 struct sharecache *node;
1858 struct socket *lesk;
1859 int fd;
1860 struct stat sb;
1861
1862 if(peer->transfer == NULL)
1863 {
2bf4942d 1864 peer->close = 1;
d3372da9 1865 return;
1866 }
1867 if((p = strchr(args, '$')) == NULL)
1868 {
2bf4942d 1869 peer->close = 1;
d3372da9 1870 return;
1871 }
1872 *(p++) = 0;
dcf7a1a2 1873 if((offset = (strtoll(p, NULL, 10) - 1)) < 0)
d3372da9 1874 {
2bf4942d 1875 peer->close = 1;
d3372da9 1876 return;
1877 }
1878 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1879 {
1880 qstr(sk, "$Error Could not send file list|");
2bf4942d 1881 peer->close = 1;
d3372da9 1882 return;
1883 } else if(fd >= 0) {
040118de 1884 if((buf2 = nmdc2path(args, DCCHARSET)) != NULL) {
d3372da9 1885 transfersetpath(peer->transfer, buf2);
040118de
FT		 1886 free(buf2);
1887 }
f00d7432 1888 peer->transfer->flags.b.minislot = 1;
d3372da9 1889 }
1890 if(fd < 0)
1891 {
1d85f24b 1892 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 1893 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1894 {
1895 qstrf(sk, "$Error File not in share|");
2bf4942d 1896 peer->close = 1;
d3372da9 1897 return;
1898 }
1899 if((fd = opensharecache(node)) < 0)
1900 {
1901 qstrf(sk, "$Error %s|", strerror(errno));
2bf4942d 1902 peer->close = 1;
d3372da9 1903 return;
1904 }
1905 buf = getfspath(node);
1906 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1907 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1908 else
1909 transfersetpath(peer->transfer, buf2);
1910 free(buf);
1911 }
1912 if(fstat(fd, &sb) < 0)
1913 {
1914 close(fd);
1915 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1916 qstrf(sk, "$Error|");
2bf4942d 1917 peer->close = 1;
d3372da9 1918 return;
1919 }
f00d7432 1920 if(sb.st_size < 65536)
1921 peer->transfer->flags.b.minislot = 1;
1922 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 1923 close(fd);
f00d7432 1924 qstr(sk, "$MaxedOut|");
2bf4942d 1925 peer->close = 1;
f00d7432 1926 return;
1927 }
d3372da9 1928 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1929 {
1930 close(fd);
1931 qstrf(sk, "$Error Offset out of range|");
2bf4942d 1932 peer->close = 1;
d3372da9 1933 return;
1934 }
1935 lesk = wrapsock(fd);
1936 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1937 putsock(lesk);
dcf7a1a2 1938 qstrf(sk, "$FileLength %ji|", (intmax_t)peer->transfer->size);
d3372da9 1939}
1940
1941static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1942{
1943 if(peer->transfer == NULL)
1944 {
2bf4942d 1945 peer->close = 1;
d3372da9 1946 return;
1947 }
1948 if(peer->transfer->localend == NULL)
1949 {
2bf4942d 1950 peer->close = 1;
d3372da9 1951 return;
1952 }
1953 peer->ptclose = 1;
9a2d6cb8 1954 startul(peer);
d3372da9 1955}
1956
1957static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1958{
1959 int i;
1960 char *p, *p2;
1961 char **arr;
1962 size_t arrsize, arrdata;
1963
1964 if(peer->supports != NULL)
1965 {
1966 for(i = 0; peer->supports[i] != NULL; i++)
1967 free(peer->supports[i]);
1968 free(peer->supports);
1969 }
1970 arr = NULL;
1971 arrsize = arrdata = 0;
1972 p = args;
1973 do
1974 {
1975 if((p2 = strchr(p, ' ')) != NULL)
1976 *(p2++) = 0;
1977 if(*p == 0)
1978 continue;
1979 addtobuf(arr, sstrdup(p));
1980 } while((p = p2) != NULL);
1981 addtobuf(arr, NULL);
1982 peer->supports = arr;
d3372da9 1983}
1984
1985static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1986{
1987 int fd;
1988 char *p, *p2;
dcf7a1a2 1989 off_t start, numbytes;
d3372da9 1990 char *charset, *buf;
1991 wchar_t *buf2;
1992 struct sharecache *node;
1993 struct stat sb;
1994 struct socket *lesk;
1995
1996 if(peer->transfer == NULL)
1997 {
2bf4942d 1998 peer->close = 1;
d3372da9 1999 return;
2000 }
2001 p = args;
2002 if((p2 = strchr(p, ' ')) == NULL)
2003 {
2bf4942d 2004 peer->close = 1;
d3372da9 2005 return;
2006 }
2007 *(p2++) = 0;
dcf7a1a2 2008 start = strtoll(p, NULL, 10);
d3372da9 2009 p = p2;
2010 if((p2 = strchr(p, ' ')) == NULL)
2011 {
2bf4942d 2012 peer->close = 1;
d3372da9 2013 return;
2014 }
2015 *(p2++) = 0;
dcf7a1a2 2016 numbytes = strtoll(p, NULL, 10);
d3372da9 2017 p = p2;
2018 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
2019 charset = "UTF-8";
2020 else
1d85f24b 2021 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 2022 charset = DCCHARSET;
2023 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
2024 initcompress(peer, CPRS_ZLIB);
2025 if(((fd = openfilelist(p)) < 0) && (errno != 0))
2026 {
2027 qstr(sk, "$Error Could not send file list|");
2028 return;
2029 } else if(fd >= 0) {
040118de 2030 if((buf2 = nmdc2path(args, charset)) != NULL) {
d3372da9 2031 transfersetpath(peer->transfer, buf2);
040118de
FT		 2032 free(buf2);
2033 }
f00d7432 2034 peer->transfer->flags.b.minislot = 1;
d3372da9 2035 }
2036 if(fd < 0)
2037 {
d3372da9 2038 if((node = resdcpath(p, charset, '\\')) == NULL)
2039 {
2040 qstr(sk, "$Error File not in cache|");
2041 return;
2042 }
2043 if((fd = opensharecache(node)) < 0)
2044 {
2045 qstrf(sk, "$Error %s|", strerror(errno));
2046 return;
2047 }
2048 buf = getfspath(node);
2049 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
2050 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2051 else
2052 transfersetpath(peer->transfer, buf2);
2053 free(buf);
2054 }
2055 if(fstat(fd, &sb) < 0)
2056 {
2057 close(fd);
2058 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2059 qstr(sk, "$Error|");
2060 return;
2061 }
f00d7432 2062 if(sb.st_size < 65536)
2063 peer->transfer->flags.b.minislot = 1;
2064 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 2065 close(fd);
f00d7432 2066 qstr(sk, "$MaxedOut|");
2067 return;
2068 }
d3372da9 2069 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2070 {
2071 close(fd);
2072 qstr(sk, "$Error Offset out of range|");
2073 return;
2074 }
2075 if((numbytes < 0) || (start + numbytes > sb.st_size))
2076 numbytes = sb.st_size - start;
2077 lesk = wrapsock(fd);
2078 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2079 putsock(lesk);
dcf7a1a2 2080 qstrf(sk, "$Sending %ji|", (intmax_t)numbytes);
9a2d6cb8 2081 startul(peer);
d3372da9 2082}
2083
2084static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2085{
2086 int i;
2087 char **argv, *buf;
dcf7a1a2 2088 off_t start, numbytes;
d3372da9 2089 struct sharecache *node;
2090 struct stat sb;
2091 struct socket *lesk;
2092 wchar_t *wbuf;
2093 int fd;
2094
2095 if(peer->transfer == NULL)
2096 {
2bf4942d 2097 peer->close = 1;
d3372da9 2098 return;
2099 }
2100 if((argv = parseadc(args)) == NULL)
2101 {
2bf4942d 2102 peer->close = 1;
d3372da9 2103 return;
2104 }
2105 if(parrlen(argv) < 4)
2106 {
2bf4942d 2107 peer->close = 1;
d3372da9 2108 goto out;
2109 }
dcf7a1a2
FT		 2110 start = strtoll(argv[2], NULL, 10);
2111 numbytes = strtoll(argv[3], NULL, 10);
d3372da9 2112 node = NULL;
2113 fd = -1;
2114 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
2115 {
2116 qstr(sk, "$Error Could not send file list|");
2117 goto out;
2118 } else if(fd >= 0) {
040118de 2119 if((wbuf = adc2path(argv[1])) != NULL)
d3372da9 2120 transfersetpath(peer->transfer, wbuf);
f00d7432 2121 peer->transfer->flags.b.minislot = 1;
d3372da9 2122 }
2123 if(fd < 0)
2124 {
d3372da9 2125 if(!strncmp(argv[1], "TTH/", 4))
2126 {
2127 if((node = findbytth(argv[1] + 4)) == NULL)
2128 {
2129 qstr(sk, "$Error File not in cache|");
2130 goto out;
2131 }
2132 } else {
9a2d6cb8 2133 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
d3372da9 2134 {
2135 qstr(sk, "$Error File not in cache|");
2136 goto out;
2137 }
2138 }
2139 if((fd = opensharecache(node)) < 0)
2140 {
2141 qstrf(sk, "$Error %s|", strerror(errno));
2142 goto out;
2143 }
2144 buf = getfspath(node);
2145 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
2146 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2147 else
2148 transfersetpath(peer->transfer, wbuf);
2149 free(buf);
2150 }
2151 if(!strcmp(argv[0], "file"))
2152 {
2153 for(i = 4; argv[i] != NULL; i++)
2154 {
2155 if(!strcmp(argv[i], "ZL1"))
2156 initcompress(peer, CPRS_ZLIB);
2157 }
2158 if(fstat(fd, &sb) < 0)
2159 {
2160 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2161 qstr(sk, "$Error|");
2162 goto out;
2163 }
f00d7432 2164 if(sb.st_size < 65536)
2165 peer->transfer->flags.b.minislot = 1;
2166 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
2167 qstr(sk, "$MaxedOut|");
2168 goto out;
2169 }
d3372da9 2170 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2171 {
2172 qstr(sk, "$Error Offset out of range|");
2173 goto out;
2174 }
2175 if((numbytes < 0) || (start + numbytes > sb.st_size))
2176 numbytes = sb.st_size - start;
2177 lesk = wrapsock(fd);
2178 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2179 putsock(lesk);
2180 fd = -1;
2181 qstr(sk, "$ADCSND");
2182 sendadc(sk, "file");
2183 sendadc(sk, argv[1]);
dcf7a1a2
FT		 2184 sendadcf(sk, "%ji", (intmax_t)start);
2185 sendadcf(sk, "%ji", (intmax_t)numbytes);
d3372da9 2186 if(peer->compress == CPRS_ZLIB)
2187 sendadc(sk, "ZL1");
2188 qstr(sk, "|");
9a2d6cb8 2189 startul(peer);
d3372da9 2190 } else if(!strcmp(argv[0], "tthl")) {
2191 /*
2192 * XXX: Implement full TTHL support.
2193 *
2194 * In the meantime, this is better than nothing, since it at
2195 * least allows fetching of the TTH root if it isn't already
2196 * known.
2197 */
2198 if(node == NULL)
2199 {
2200 qstr(sk, "$Error no TTHL data for virtual files|");
2201 goto out;
2202 }
2203 qstr(sk, "$ADCSND");
2204 sendadc(sk, "tthl");
2205 sendadc(sk, argv[1]);
2206 sendadc(sk, "0");
2207 sendadc(sk, "24");
2208 qstr(sk, "|");
2209 sockqueue(sk, node->hashtth, 24);
2210 } else {
2211 qstr(sk, "$Error Namespace not implemented|");
2212 goto out;
2213 }
d3372da9 2214
2215 out:
2216 if(fd >= 0)
2217 close(fd);
2218 freeparr(argv);
2219}
2220
9a2d6cb8 2221static void handletthl(struct dcpeer *peer)
2222{
2223 char buf[24];
2224
2225 while(peer->inbufdata >= 24)
2226 {
2227 pushtigertree(&peer->tth, peer->inbuf);
2228 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
e52006fe 2229 peer->curread += 24;
9a2d6cb8 2230 }
e52006fe 2231 if(peer->curread >= peer->totalsize)
9a2d6cb8 2232 {
1e9d82b1 2233 if(peer->timeout == NULL)
2234 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 2235 peer->state = PEER_CMD;
2236 synctigertree(&peer->tth);
2237 restigertree(&peer->tth, buf);
2238 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2239 requestfile(peer);
2240 }
2241}
2242
2243static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2244{
2245 char **argv;
dcf7a1a2 2246 off_t start, numbytes;
9a2d6cb8 2247
2248 if(peer->transfer == NULL)
2249 {
2bf4942d 2250 peer->close = 1;
9a2d6cb8 2251 return;
2252 }
2253 if((argv = parseadc(args)) == NULL)
2254 {
2bf4942d 2255 peer->close = 1;
9a2d6cb8 2256 return;
2257 }
2258 if(parrlen(argv) < 4)
2259 {
2bf4942d 2260 peer->close = 1;
9a2d6cb8 2261 goto out;
2262 }
dcf7a1a2
FT		 2263 start = strtoll(argv[2], NULL, 10);
2264 numbytes = strtoll(argv[3], NULL, 10);
9a2d6cb8 2265 if(!strcmp(argv[0], "tthl"))
2266 {
2267 if((start != 0) || (numbytes % 24 != 0))
2268 {
2269 /* Weird. Bail out. */
2bf4942d 2270 peer->close = 1;
9a2d6cb8 2271 goto out;
2272 }
1e9d82b1 2273 if(peer->timeout != NULL)
2274 canceltimer(peer->timeout);
9a2d6cb8 2275 peer->state = PEER_TTHL;
2276 peer->totalsize = numbytes;
2277 peer->curread = 0;
df873cd0 2278 peer->fetchingtthl = 0;
9a2d6cb8 2279 inittigertree(&peer->tth);
2280 handletthl(peer);
2281 } else if(!strcmp(argv[0], "file")) {
2282 if(start != peer->transfer->curpos)
2283 {
2bf4942d 2284 peer->close = 1;
9a2d6cb8 2285 goto out;
2286 }
2287 if(start + numbytes != peer->transfer->size)
2288 {
2289 transfersetsize(peer->transfer, start + numbytes);
2bf4942d 2290 peer->close = 1;
9a2d6cb8 2291 goto out;
2292 }
2293 startdl(peer);
cab0b442 2294 if(peer->inbufdata > 0)
2295 {
2296 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2297 peer->inbufdata = 0;
cab0b442 2298 }
9a2d6cb8 2299 } else {
2300 /* We certainly didn't request this...*/
2bf4942d 2301 peer->close = 1;
9a2d6cb8 2302 goto out;
2303 }
2304
2305 out:
2306 freeparr(argv);
2307}
2308
2309static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2310{
dcf7a1a2 2311 off_t numbytes;
9a2d6cb8 2312
2313 if(peer->transfer == NULL)
2314 {
2bf4942d 2315 peer->close = 1;
9a2d6cb8 2316 return;
2317 }
dcf7a1a2 2318 numbytes = strtoll(args, NULL, 10);
9a2d6cb8 2319 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2320 {
2321 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2bf4942d 2322 peer->close = 1;
9a2d6cb8 2323 return;
2324 }
2325 startdl(peer);
cab0b442 2326 if(peer->inbufdata > 0)
2327 {
2328 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2329 peer->inbufdata = 0;
cab0b442 2330 }
9a2d6cb8 2331}
2332
d3372da9 2333/*
2334Hub skeleton:
2335static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2336{
2337 struct dchub *hub;
2338
2339 hub = fn->data;
2340 hubhandleaction(sk, fn, cmd, args);
2341}
2342
2343Peer skeleton:
2344static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2345{
d3372da9 2346}
2347
2348*/
2349
2350static int hubreqconn(struct fnetpeer *peer)
2351{
2352 struct dchub *hub;
2353 char *mbsnick;
2354
2355 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2356 {
2357 errno = EINVAL;
2358 return(1);
2359 }
2360 if((hub = peer->fn->data) == NULL)
2361 {
2362 errno = EFAULT;
2363 return(1);
2364 }
1d85f24b 2365 if((mbsnick = icwcstombs(peer->id, hub->charset)) == NULL)
d3372da9 2366 return(1); /* Shouldn't happen, of course, but who knows... */
2367 if(tcpsock != NULL)
2368 {
ffa81d5f 2369 sendctm(hub->sk, mbsnick);
d3372da9 2370 expectpeer(mbsnick, peer->fn);
2371 } else {
ffa81d5f 2372 qstrf(hub->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
d3372da9 2373 }
2374 free(mbsnick);
2375 return(0);
2376}
2377
2378static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2379{
2380 struct dchub *hub;
2381 char *mbsstring, *mbsto;
2382
2383 hub = fn->data;
1d85f24b 2384 if((mbsto = icwcstombs(to, hub->charset)) == NULL)
d3372da9 2385 {
2386 errno = EILSEQ;
2387 return(1);
2388 }
1d85f24b 2389 if((mbsstring = icwcstombs(string, hub->charset)) == NULL)
d3372da9 2390 {
2391 errno = EILSEQ;
2392 return(1);
2393 }
2394 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2395 {
2396 free(mbsto);
2397 free(mbsstring);
2398 errno = ESRCH;
2399 return(1);
2400 }
2401 if(strchr(mbsstring, '|') != NULL)
2402 {
2403 free(mbsto);
2404 free(mbsstring);
2405 errno = EILSEQ;
2406 return(1);
2407 }
2408 if(public)
2409 {
2410 if(*to == L'\0')
2411 {
ffa81d5f 2412 qstrf(hub->sk, "<%s> %s|", hub->nativenick, mbsstring);
d3372da9 2413 } else {
ffa81d5f 2414 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2415 }
2416 } else {
ffa81d5f 2417 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2418 }
2419 free(mbsto);
2420 free(mbsstring);
2421 return(0);
2422}
2423
2424static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2425{
2426 int minl, maxl, minr, maxr, retmin, retmax;
2427
2428 switch(sexpr->op)
2429 {
2430 case SOP_AND:
2431 findsizelimit(sexpr->l, &minl, &maxl);
2432 findsizelimit(sexpr->r, &minr, &maxr);
2433 retmin = (minl > minr)?minl:minr;
2434 if((maxl != -1) && (maxr != -1))
2435 retmax = (maxl < maxr)?maxl:maxr;
2436 else if(maxl != -1)
2437 retmax = maxl;
2438 else if(maxr != -1)
2439 retmax = maxr;
2440 else
2441 retmax = -1;
2442 break;
2443 case SOP_OR:
2444 findsizelimit(sexpr->l, &minl, &maxl);
2445 findsizelimit(sexpr->r, &minr, &maxr);
2446 retmin = (minl < minr)?minl:minr;
2447 if((maxl == -1) || (maxr == -1))
2448 retmax = -1;
2449 else
2450 retmax = (maxl > maxr)?maxl:maxr;
2451 break;
2452 case SOP_NOT:
2453 findsizelimit(sexpr->l, &minl, &maxl);
2454 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2455 {
2456 retmin = 0;
2457 retmax = -1;
2458 } else if((minl == 0) && (maxl != -1)) {
2459 retmin = maxl + 1;
2460 retmax = -1;
2461 } else if((minl != 0) && (maxl == -1)) {
2462 retmin = 0;
2463 retmax = minl - 1;
2464 } else { /* This would yield two seperate intervals, which DC cannot handle */
2465 retmin = 0;
2466 retmax = -1;
2467 }
2468 case SOP_SIZELT:
2469 retmin = 0;
2470 retmax = sexpr->d.n - 1;
2471 break;
2472 case SOP_SIZEEQ:
2473 retmin = sexpr->d.n;
2474 retmax = sexpr->d.n;
2475 break;
2476 case SOP_SIZEGT:
2477 retmin = sexpr->d.n + 1;
2478 retmax = -1;
2479 break;
2480 default:
2481 retmin = 0;
2482 retmax = -1;
2483 break;
2484 }
2485 if(min != NULL)
2486 *min = retmin;
2487 if(max != NULL)
2488 *max = retmax;
2489}
2490
9d8cf743 2491static struct hash *findsehash(struct sexpr *sexpr)
2492{
2493 struct hash *h1, *h2;
2494
2495 switch(sexpr->op)
2496 {
2497 case SOP_AND:
2498 if((h1 = findsehash(sexpr->l)) != NULL)
2499 return(h1);
2500 if((h1 = findsehash(sexpr->r)) != NULL)
2501 return(h1);
2502 break;
2503 case SOP_OR:
175c86de 2504 if((h1 = findsehash(sexpr->l)) == NULL)
2505 return(NULL);
2506 if((h2 = findsehash(sexpr->r)) == NULL)
2507 return(NULL);
9d8cf743 2508 if(hashcmp(h1, h2))
2509 return(h1);
2510 break;
2511 case SOP_HASHIS:
2512 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2513 return(sexpr->d.hash);
2514 default:
2515 break;
2516 }
2517 return(NULL);
2518}
2519
d3372da9 2520static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2521{
2522 struct dchub *hub;
2523 struct wcslist *list, *cur;
2524 char *sstr, *buf, *p;
2525 size_t sstrsize, sstrdata;
2526 struct sockaddr *name;
2527 socklen_t namelen;
2528 int minsize, maxsize;
9d8cf743 2529 struct hash *hash;
d3372da9 2530
2531 hub = fn->data;
ffa81d5f 2532 if((fn->state != FNN_EST) || (hub->sk == NULL) || (hub->sk->state != SOCK_EST))
d3372da9 2533 return(1);
2534 list = findsexprstrs(srch->sexpr);
2535 findsizelimit(srch->sexpr, &minsize, &maxsize);
9d8cf743 2536 hash = findsehash(srch->sexpr);
d3372da9 2537 if((minsize != 0) && (maxsize != -1))
2538 {
2539 /* Choose either minsize or maxsize by trying to determine
2540 * which choice will be most restrictive. The result can be
2541 * approximative at best anyway, so don't try too hard... */
2542 if((50000000 - maxsize) > (minsize - 50000000))
2543 minsize = 0;
2544 else
2545 maxsize = -1;
2546 }
d3372da9 2547 sstr = NULL;
2548 sstrsize = sstrdata = 0;
9d8cf743 2549 if((hash != NULL) && (hash->len == 24))
d3372da9 2550 {
9d8cf743 2551 /* Prioritize hash searches above all else */
2552 bufcat(sstr, "F?T?0?9?TTH:", 12);
2553 buf = base32encode(hash->buf, hash->len);
2554
2555 bufcat(sstr, buf, 39);
2556 free(buf);
2557 } else {
2558 if(minsize != 0)
d3372da9 2559 {
9d8cf743 2560 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2561 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
9d8cf743 2562 } else if(maxsize != -1) {
2563 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2564 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
9d8cf743 2565 } else {
2566 bufcat(sstr, "F?F?0?1?", 8);
2567 }
2568 if(list != NULL)
2569 {
2570 for(cur = list; cur != NULL; cur = cur->next)
d3372da9 2571 {
1d85f24b 2572 /* Use DCCHARSET in $Get paths until further researched... */
9d8cf743 2573 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2574 {
2575 /* Can't find anything anyway if the search expression
2576 * requires characters outside DC's charset. There's
2577 * nothing technically wrong with the search itself,
2578 * however, so return success. This should be
2579 * considered as an optimization. */
2580 freesl(&list);
2581 if(sstr != NULL)
2582 free(sstr);
2583 return(0);
2584 }
2585 if(cur != list)
2586 addtobuf(sstr, '$');
2587 /*
2588 * It probably doesn't hurt if buf contains any extra
2589 * dollar signs - it will just result in extra search
2590 * terms, and the extraneous results will be filtered by
2591 * the search layer anyway. It hurts if it contains any
2592 * pipes, though, so let's sell them for money.
2593 */
2594 for(p = buf; *p; p++)
2595 {
2596 if(*p == '|')
2597 *p = '$';
2598 }
2599 bufcat(sstr, buf, strlen(buf));
2600 free(buf);
d3372da9 2601 }
9d8cf743 2602 } else {
2603 /* Will match all files... :-/ */
2604 addtobuf(sstr, '.');
d3372da9 2605 }
d3372da9 2606 }
2607 addtobuf(sstr, 0);
2608 if(tcpsock != NULL)
2609 {
ffa81d5f 2610 if(sockgetremotename2(udpsock, hub->sk, &name, &namelen) < 0)
d3372da9 2611 {
2612 flog(LOG_WARNING, "cannot get address of UDP socket");
2613 } else {
ffa81d5f 2614 qstrf(hub->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
d3372da9 2615 free(name);
2616 }
2617 } else {
ffa81d5f 2618 qstrf(hub->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
d3372da9 2619 }
2620 free(sstr);
2621 freesl(&list);
2622 fn->lastsrch = time(NULL);
2623 return(0);
2624}
2625
2626#undef skipcmd
2627#undef qstr
2628#undef qstrf
2629
2630#define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
8b930085 2631static struct command hubcmds[] =
d3372da9 2632{
2633 {"$Lock", cc(cmd_lock)},
2634 {"$HubName", cc(cmd_hubname)},
2635 {"$Hello", cc(cmd_hello)},
2636 {"$Quit", cc(cmd_quit)},
2637 {"$NickList", cc(cmd_nicklist)},
2638 {"$OpList", cc(cmd_oplist)},
2639 {"$MyINFO", cc(cmd_myinfo)},
2640 {"$ForceMove", cc(cmd_forcemove)},
8cb2d75b
FT		 2641 {"$Search", cc(cmd_search), .limit = 100},
2642 {"$MultiSearch", cc(cmd_search), .limit = 50},
2643 {"$ConnectToMe", cc(cmd_connecttome), .limit = 200},
2644 {"$RevConnectToMe", cc(cmd_revconnecttome), .limit = 500},
d3372da9 2645 {"$GetNetInfo", cc(cmd_getnetinfo)},
2646 {"$To:", cc(cmd_to)},
2647 {"$SR", cc(cmd_sr)},
2648 {"$UserCommand", cc(cmd_usercommand)},
48509089 2649 {"$GetPass", cc(cmd_getpass)},
c9b3ad74 2650 {"$LogedIn", cc(cmd_logedin)}, /* sic */
08b74f8c 2651 {"$Supports", cc(cmd_hubsupports)},
d3372da9 2652 {NULL, NULL}
2653};
2654
8b930085 2655static struct command peercmds[] =
d3372da9 2656{
2657 {"$MyNick", cc(cmd_mynick)},
2658 {"$Lock", cc(cmd_peerlock)},
2659 {"$Direction", cc(cmd_direction)},
2660 {"$Key", cc(cmd_key)},
2661 {"$FileLength", cc(cmd_filelength)},
2662 {"$Error", cc(cmd_error)},
2663 {"$MaxedOut", cc(cmd_maxedout)},
2664 {"$Get", cc(cmd_get)},
2665 {"$Send", cc(cmd_send)},
2666 {"$Supports", cc(cmd_supports)},
2667 {"$GetBlock", cc(cmd_getblock)},
2668 {"$UGetBlock", cc(cmd_getblock)},
2669 {"$GetZBlock", cc(cmd_getblock)},
2670 {"$UGetZBlock", cc(cmd_getblock)},
2671 {"$ADCGET", cc(cmd_adcget)},
8cb2d75b
FT		 2672 {"$ADCSND", cc(cmd_adcsnd), .stop = 1},
2673 {"$Sending", cc(cmd_sending), .stop = 1},
d3372da9 2674 {NULL, NULL}
2675};
2676#undef cc
2677
d3372da9 2678static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2679{
2680 int ret;
2681 void *buf;
c7185019 2682 unsigned char outbuf[1024];
d3372da9 2683 z_stream *cstr;
2684 size_t bufsize;
2685
2686 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2687 {
81286a22 2688 if(sockqueueleft(peer->sk) > 0)
d3372da9 2689 {
1ff9e8ea 2690 if((buf = sockgetinbuf(peer->trpipe, &bufsize)) != NULL)
d3372da9 2691 {
1ff9e8ea
FT		 2692 if((transfer->endpos >= 0) && (transfer->curpos + bufsize >= transfer->endpos))
2693 bufsize = transfer->endpos - transfer->curpos;
2694 if(bufsize > 0) {
2695 if(peer->compress == CPRS_NONE)
d3372da9 2696 {
1ff9e8ea
FT		 2697 sockqueue(peer->sk, buf, bufsize);
2698 } else if(peer->compress == CPRS_ZLIB) {
2699 cstr = peer->cprsdata;
2700 cstr->next_in = buf;
2701 cstr->avail_in = bufsize;
2702 while(cstr->avail_in > 0)
d3372da9 2703 {
1ff9e8ea
FT		 2704 cstr->next_out = outbuf;
2705 cstr->avail_out = sizeof(outbuf);
2706 if((ret = deflate(cstr, 0)) != Z_OK)
2707 {
2708 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2709 freedcpeer(peer);
2710 return;
2711 }
2712 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
d3372da9 2713 }
d3372da9 2714 }
2715 }
2716 free(buf);
2717 }
2718 if(peer->state == PEER_SYNC)
2719 {
2720 if(peer->compress == CPRS_ZLIB)
2721 {
2722 cstr = peer->cprsdata;
2723 cstr->next_in = NULL;
2724 cstr->avail_in = 0;
2725 do
2726 {
2727 cstr->next_out = outbuf;
2728 cstr->avail_out = sizeof(outbuf);
2729 ret = deflate(cstr, Z_FINISH);
2730 if((ret != Z_OK) && (ret != Z_STREAM_END))
2731 {
2732 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2733 freedcpeer(peer);
2734 return;
2735 }
2736 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2737 } while(ret != Z_STREAM_END);
2738 }
2739 if(peer->ptclose)
2740 {
2741 freedcpeer(peer);
2742 } else {
1e9d82b1 2743 if(peer->timeout == NULL)
2744 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 2745 peer->state = PEER_CMD;
2746 endcompress(peer);
2747 transfersetstate(transfer, TRNS_HS);
2748 socksettos(peer->sk, confgetint("fnet", "fnptos"));
bfc261fe 2749 transfer->flags.b.minislot = 0;
cab0b442 2750 peer->sk->writecb = NULL;
d3372da9 2751 }
2752 }
2753 }
2754 }
2755}
2756
1ff9e8ea
FT		 2757void trpiperead(struct socket *sk, struct dcpeer *peer)
2758{
2759 dctransgotdata(peer->transfer, peer);
2760}
2761
2762void trpipewrite(struct socket *sk, struct dcpeer *peer)
2763{
2764}
2765
2766void trpipeerr(struct socket *sk, int errno, struct dcpeer *peer)
d3372da9 2767{
2768 peer->state = PEER_SYNC;
1ff9e8ea
FT		 2769 dctransgotdata(peer->transfer, peer);
2770 CBUNREG(peer->transfer, trans_filterout, peer);
2771}
2772
2773static struct socket *mktrpipe(struct dcpeer *peer)
2774{
2775 struct socket *sk;
2776
2777 sk = netsockpipe();
2778 sk->data = peer;
2779 sk->readcb = (void (*)(struct socket *, void *))trpiperead;
2780 sk->writecb = (void (*)(struct socket *, void *))trpipewrite;
2781 sk->errcb = (void (*)(struct socket *, int, void *))trpipeerr;
2782 return(sk);
d3372da9 2783}
2784
cab0b442 2785static void transread(struct socket *sk, struct dcpeer *peer)
d3372da9 2786{
cab0b442 2787 void *buf;
2788 size_t bufsize;
d3372da9 2789
1ff9e8ea 2790 if(sockqueueleft(peer->trpipe) < 0)
81286a22 2791 return;
cab0b442 2792 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
2793 return;
d3372da9 2794 if(peer->transfer == NULL)
2795 {
cab0b442 2796 free(buf);
d3372da9 2797 freedcpeer(peer);
2798 return;
2799 }
1ff9e8ea 2800 sockqueue(peer->trpipe, buf, bufsize);
cab0b442 2801 free(buf);
d3372da9 2802 if(peer->transfer->curpos >= peer->transfer->size)
2803 {
1ff9e8ea
FT		 2804 closesock(peer->trpipe);
2805 quitsock(peer->trpipe);
2806 peer->close = 1;
d3372da9 2807 return;
2808 }
81286a22
FT		 2809}
2810
cab0b442 2811static void transerr(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 2812{
2813 struct transfer *transfer;
2814
2815 if((transfer = peer->transfer) == NULL)
cab0b442 2816 {
2817 freedcpeer(peer);
d3372da9 2818 return;
cab0b442 2819 }
1ff9e8ea
FT		 2820 closesock(peer->trpipe);
2821 quitsock(peer->trpipe);
2822 peer->close = 1;
d3372da9 2823}
2824
cab0b442 2825static void transwrite(struct socket *sk, struct dcpeer *peer)
d3372da9 2826{
2827 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
cab0b442 2828 return;
d3372da9 2829 if(peer->transfer == NULL)
2830 {
2831 freedcpeer(peer);
cab0b442 2832 return;
d3372da9 2833 }
2834 dctransgotdata(peer->transfer, peer);
2835}
2836
cab0b442 2837static void udpread(struct socket *sk, void *data)
d3372da9 2838{
d86b7a9f 2839 char *buf, *p, *p2, *hashbuf;
2840 size_t buflen, hashlen;
d3372da9 2841 char *nick, *filename, *hubname;
99a28d47 2842 struct sockaddr_in hubaddr;
d1ef0200 2843 struct sockaddr *addrbuf;
dcf7a1a2
FT		 2844 off_t size;
2845 int slots;
d3372da9 2846 struct fnetnode *fn, *myfn;
2847 struct dchub *hub;
2848 struct srchres *sr;
2849 wchar_t *wnick, *wfile;
d86b7a9f 2850 struct hash *hash;
d3372da9 2851
2852 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
cab0b442 2853 return;
d3372da9 2854 buf = srealloc(buf, buflen + 1);
2855 buf[buflen] = 0;
2856 if(!strncmp(buf, "$SR ", 4))
2857 {
2858 p = buf + 4;
2859 nick = p;
2860 if((p2 = strchr(p, ' ')) == NULL)
2861 {
2862 free(buf);
cab0b442 2863 return;
d3372da9 2864 }
2865 *p2 = 0;
2866 p = p2 + 1;
2867 filename = p;
2868 if((p2 = strchr(p, 5)) == NULL)
2869 {
2870 free(buf);
cab0b442 2871 return;
d3372da9 2872 }
2873 *p2 = 0;
2874 p = p2 + 1;
2875 if((p2 = strchr(p, ' ')) == NULL)
2876 {
2877 free(buf);
cab0b442 2878 return;
d3372da9 2879 }
2880 *p2 = 0;
dcf7a1a2 2881 size = strtoll(p, NULL, 10);
d3372da9 2882 p = p2 + 1;
2883 if((p2 = strchr(p, '/')) == NULL)
2884 {
2885 free(buf);
cab0b442 2886 return;
d3372da9 2887 }
2888 *p2 = 0;
2889 slots = atoi(p);
2890 p = p2 + 1;
2891 if((p2 = strchr(p, 5)) == NULL)
2892 {
2893 free(buf);
cab0b442 2894 return;
d3372da9 2895 }
2896 p = p2 + 1;
2897 hubname = p;
2898 if((p2 = strstr(p, " (")) == NULL)
2899 {
2900 free(buf);
cab0b442 2901 return;
d3372da9 2902 }
2903 *p2 = 0;
99a28d47 2904 p = p2 + 2;
2905 if((p2 = strchr(p, ':')) == NULL)
2906 {
2907 free(buf);
cab0b442 2908 return;
99a28d47 2909 }
870bf4ad 2910 *(p2++) = 0;
99a28d47 2911 hubaddr.sin_family = AF_INET;
2912 if(!inet_aton(p, &hubaddr.sin_addr))
2913 {
2914 free(buf);
cab0b442 2915 return;
99a28d47 2916 }
2917 p = p2;
2918 if((p2 = strchr(p, ')')) == NULL)
2919 {
2920 free(buf);
cab0b442 2921 return;
99a28d47 2922 }
2923 *p2 = 0;
2924 hubaddr.sin_port = htons(atoi(p));
1d85f24b 2925 /* Use DCCHARSET in $Get paths until further researched... */
040118de 2926 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 2927 {
d3372da9 2928 free(buf);
cab0b442 2929 return;
d3372da9 2930 }
2931 myfn = NULL;
d86b7a9f 2932 hash = NULL;
2933 if(!strncmp(hubname, "TTH:", 4))
d3372da9 2934 {
d86b7a9f 2935 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2936 {
2937 if(hashlen == 24)
2938 hash = newhash(L"TTH", 24, hashbuf);
2939 free(hashbuf);
2940 }
2941 } else {
2942 for(fn = fnetnodes; fn != NULL; fn = fn->next)
d3372da9 2943 {
d86b7a9f 2944 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
d3372da9 2945 {
d86b7a9f 2946 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
d3372da9 2947 {
d86b7a9f 2948 if(myfn == NULL)
2949 {
2950 myfn = fn;
2951 } else {
2952 myfn = NULL;
2953 break;
2954 }
d3372da9 2955 }
2956 }
2957 }
2958 }
99a28d47 2959 if(myfn == NULL)
2960 {
2961 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2962 {
d1ef0200 2963 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL) && !sockpeeraddr(hub->sk, &addrbuf, NULL))
99a28d47 2964 {
d1ef0200 2965 if((hub->sk != NULL) && addreq(addrbuf, (struct sockaddr *)&hubaddr))
ffa81d5f
FT		 2966 {
2967 myfn = fn;
42a86a24 2968 free(addrbuf);
ffa81d5f
FT		 2969 break;
2970 }
d1ef0200 2971 free(addrbuf);
99a28d47 2972 }
2973 }
2974 }
1d85f24b 2975 hub = NULL;
2976 if(myfn != NULL)
2977 hub = myfn->data;
2978 if((wnick = icmbstowcs(nick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
2979 {
2980 free(buf);
cab0b442 2981 return;
1d85f24b 2982 }
d3372da9 2983 sr = newsrchres(&dcnet, wfile, wnick);
2984 if(sr->peernick != NULL)
2985 free(sr->peernick);
2986 sr->peernick = swcsdup(wnick);
2987 sr->size = size;
2988 sr->slots = slots;
2989 free(wfile);
2990 free(wnick);
2991 if(myfn != NULL)
2992 getfnetnode(sr->fn = myfn);
d86b7a9f 2993 if(hash != NULL)
2994 sr->hash = hash;
d3372da9 2995 submitsrchres(sr);
2996 freesrchres(sr);
2997 }
2998 free(buf);
2999}
3000
3001static void hubread(struct socket *sk, struct fnetnode *fn)
3002{
3003 struct dchub *hub;
8cb2d75b 3004 struct command *cmd;
d3372da9 3005 char *newbuf;
8cb2d75b 3006 size_t datalen, cnlen;
c319fb93 3007 char *p, *p2;
d3372da9 3008
3009 hub = (struct dchub *)fn->data;
81286a22
FT		 3010 if(hub->queue.size > 1000)
3011 return;
d3372da9 3012 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
3013 return;
3014 if(hub->inbufdata > 500000) /* Discard possible malicious data */
3015 hub->inbufdata = 0;
3016 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
3017 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
3018 free(newbuf);
c319fb93 3019 p = hub->inbuf;
d3372da9 3020 hub->inbufdata += datalen;
28a3ef52 3021 while((p - hub->inbuf < hub->inbufdata) && ((p2 = memchr(p, '|', hub->inbufdata - (p - hub->inbuf))) != NULL))
d3372da9 3022 {
c319fb93 3023 *(p2++) = 0;
8cb2d75b
FT		 3024 for(cmd = hubcmds; cmd->handler != NULL; cmd++)
3025 {
3026 cnlen = strlen(cmd->name);
c319fb93 3027 if(!strncmp(p, cmd->name, cnlen) && ((p[cnlen] == ' ') || (p[cnlen] == 0)))
8cb2d75b
FT		 3028 break;
3029 }
3030 if((cmd->limit == 0) || (hub->queue.size < cmd->limit))
c319fb93 3031 newqcmd(&hub->queue, p);
c319fb93 3032 p = p2;
d3372da9 3033 }
c319fb93 3034 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
d3372da9 3035}
3036
3037static void huberr(struct socket *sk, int err, struct fnetnode *fn)
3038{
3039 killfnetnode(fn);
3040}
3041
3042static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
3043{
3044 struct dchub *hub;
3045 char *buf;
3046
3047 hub = fn->data;
1d85f24b 3048 if((buf = icwcstombs(newnick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
d3372da9 3049 return(1);
3050 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
3051 {
3052 free(buf);
3053 return(1);
3054 }
3055 if(hub == NULL) /* Not yet connected */
3056 {
3057 free(buf);
3058 return(0);
3059 }
3060 if(hub->nativenick != NULL)
3061 free(hub->nativenick);
3062 hub->nativenick = buf;
3063 return(0);
3064}
3065
3066static struct dchub *newdchub(struct fnetnode *fn)
3067{
3068 struct dchub *new;
1c4b02cd 3069 wchar_t *emu;
1d85f24b 3070 wchar_t *wcharset;
3071 char *charset;
d3372da9 3072
3073 new = smalloc(sizeof(*new));
3074 memset(new, 0, sizeof(*new));
3075 fn->data = new;
1c4b02cd 3076 if(confgetint("dc", "dcppemu"))
3077 new->dcppemu = 1;
3078 if((emu = wpfind(fn->args, L"dcppemu")) != NULL)
3079 {
3080 if(*emu == L'y')
3081 new->dcppemu = 1;
3082 if(*emu == L'n')
3083 new->dcppemu = 0;
3084 }
1d85f24b 3085 charset = NULL;
3086 if((wcharset = wpfind(fn->args, L"charset")) != NULL)
3087 {
3088 if((charset = icwcstombs(wcharset, "US-ASCII")) != NULL)
3089 {
3090 if(!havecharset(charset))
3091 {
3092 free(charset);
3093 charset = NULL;
3094 }
3095 }
3096 }
3097 if(charset != NULL)
3098 new->charset = charset;
3099 else
3100 new->charset = sstrdup(DCCHARSET);
d3372da9 3101 if(hubsetnick(fn, fn->mynick))
3102 fnetsetnick(fn, L"DoldaConnectUser-IN");
3103 /* IN as in Invalid Nick */
3104 return(new);
3105}
3106
3107static struct dcpeer *newdcpeer(struct socket *sk)
3108{
3109 struct dcpeer *new;
3110
3111 new = smalloc(sizeof(*new));
3112 memset(new, 0, sizeof(*new));
3113 new->transfer = NULL;
3114 getsock(sk);
3115 new->sk = sk;
1c4b02cd 3116 if(confgetint("dc", "dcppemu"))
3117 new->dcppemu = 1;
d3372da9 3118 new->next = peers;
3119 new->prev = NULL;
3120 if(peers != NULL)
3121 peers->prev = new;
3122 peers = new;
3123 numdcpeers++;
3124 return(new);
3125}
3126
3127static void freedcpeer(struct dcpeer *peer)
3128{
3129 int i;
3130 struct qcommand *qcmd;
3131
d3372da9 3132 if(peers == peer)
3133 peers = peer->next;
3134 if(peer->next != NULL)
3135 peer->next->prev = peer->prev;
3136 if(peer->prev != NULL)
3137 peer->prev->next = peer->next;
1ce5968e
FT		 3138 if(peer->trpipe != NULL) {
3139 closesock(peer->trpipe);
1ff9e8ea 3140 quitsock(peer->trpipe);
1ce5968e 3141 }
d3372da9 3142 if(peer->transfer != NULL)
3143 {
1ff9e8ea 3144 CBUNREG(peer->transfer, trans_filterout, peer);
d3372da9 3145 if(peer->transfer->dir == TRNSD_UP)
3146 peer->transfer->close = 1;
3147 if(peer->transfer->dir == TRNSD_DOWN)
3148 resettransfer(peer->transfer);
d3372da9 3149 }
1e9d82b1 3150 if(peer->timeout != NULL)
3151 canceltimer(peer->timeout);
cab0b442 3152 if(peer->sk->data == peer)
3153 peer->sk->data = NULL;
3154 peer->sk->readcb = NULL;
3155 peer->sk->writecb = NULL;
3156 peer->sk->errcb = NULL;
d3372da9 3157 putsock(peer->sk);
3158 endcompress(peer);
3159 if(peer->supports != NULL)
3160 {
3161 for(i = 0; peer->supports[i] != NULL; i++)
3162 free(peer->supports[i]);
3163 free(peer->supports);
3164 }
d3372da9 3165 if(peer->inbuf != NULL)
3166 free(peer->inbuf);
3167 if(peer->key != NULL)
3168 free(peer->key);
3169 if(peer->wcsname != NULL)
3170 free(peer->wcsname);
3171 if(peer->nativename != NULL)
3172 free(peer->nativename);
1d85f24b 3173 if(peer->charset != NULL)
3174 free(peer->charset);
d3372da9 3175 if(peer->fn != NULL)
3176 putfnetnode(peer->fn);
3177 while((qcmd = ulqcmd(&peer->queue)) != NULL)
3178 freeqcmd(qcmd);
3179 free(peer);
3180 numdcpeers--;
3181}
3182
ffa81d5f 3183static void hubconnect(struct fnetnode *fn, struct socket *sk)
d3372da9 3184{
ffa81d5f
FT		 3185 struct dchub *hub;
3186
3187 sk->readcb = (void (*)(struct socket *, void *))hubread;
3188 sk->errcb = (void (*)(struct socket *, int, void *))huberr;
3189 fn->data = hub = newdchub(fn);
3190 sk->data = fn;
3191 getsock(hub->sk = sk);
d3372da9 3192 return;
3193}
3194
3195static void hubdestroy(struct fnetnode *fn)
3196{
08b74f8c 3197 int i;
d3372da9 3198 struct dchub *hub;
3199 struct qcommand *qcmd;
3200
3201 hub = (struct dchub *)fn->data;
ffa81d5f 3202 putsock(hub->sk);
d3372da9 3203 while((qcmd = ulqcmd(&hub->queue)) != NULL)
3204 freeqcmd(qcmd);
08b74f8c
FT		 3205 if(hub->supports != NULL)
3206 {
3207 for(i = 0; hub->supports[i] != NULL; i++)
3208 free(hub->supports[i]);
3209 free(hub->supports);
3210 }
d3372da9 3211 if(hub->nativename != NULL)
3212 free(hub->nativename);
3213 if(hub->nativenick != NULL)
3214 free(hub->nativenick);
1d85f24b 3215 if(hub->charset != NULL)
3216 free(hub->charset);
d3372da9 3217 if(hub->inbuf != NULL)
3218 free(hub->inbuf);
3219 free(hub);
3220}
3221
ffa81d5f
FT		 3222static void hubkill(struct fnetnode *fn)
3223{
3224 struct dchub *hub;
3225
3226 hub = (struct dchub *)fn->data;
d1ef0200 3227 closesock(hub->sk);
ffa81d5f
FT		 3228}
3229
d3372da9 3230static struct fnet dcnet =
3231{
3232 .name = L"dc",
3233 .connect = hubconnect,
3234 .destroy = hubdestroy,
ffa81d5f 3235 .kill = hubkill,
d3372da9 3236 .setnick = hubsetnick,
3237 .reqconn = hubreqconn,
3238 .sendchat = hubsendchat,
3239 .search = hubsearch,
d3372da9 3240};
3241
cab0b442 3242static void peerread(struct socket *sk, struct dcpeer *peer)
d3372da9 3243{
cab0b442 3244 char *newbuf, *p;
8cb2d75b 3245 size_t datalen, cnlen;
cab0b442 3246 struct command *cmd;
5ec60e42 3247
81286a22
FT		 3248 if(peer->state == PEER_CMD) {
3249 if((peer->queue.size > 50) || (peer->inbufdata > 65536))
3250 return;
3251 }
d3372da9 3252 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 3253 return;
d3372da9 3254 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
3255 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
3256 free(newbuf);
d3372da9 3257 peer->inbufdata += datalen;
9a2d6cb8 3258 if(peer->state == PEER_CMD)
d3372da9 3259 {
cab0b442 3260 p = peer->inbuf;
3261 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
3262 {
3263 *(p++) = 0;
cab0b442 3264 for(cmd = peercmds; cmd->handler != NULL; cmd++)
3265 {
8cb2d75b
FT		 3266 cnlen = strlen(cmd->name);
3267 if(!strncmp(peer->inbuf, cmd->name, cnlen) && ((peer->inbuf[cnlen] == ' ') || (peer->inbuf[cnlen] == 0)))
cab0b442 3268 break;
3269 }
8cb2d75b
FT		 3270 if((cmd->limit == 0) || (peer->queue.size < cmd->limit))
3271 newqcmd(&peer->queue, peer->inbuf);
cab0b442 3272 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
3273 if(cmd->stop)
3274 {
3275 peer->state = PEER_STOP;
3276 break;
3277 }
3278 }
9a2d6cb8 3279 } else if(peer->state == PEER_TTHL) {
3280 handletthl(peer);
d3372da9 3281 }
3282}
3283
cab0b442 3284static void peererror(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 3285{
3286 freedcpeer(peer);
3287}
3288
cab0b442 3289static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
d3372da9 3290{
3291 struct dcpeer *peer;
1c4b02cd 3292 struct dchub *hub;
d3372da9 3293
3294 if(err != 0)
3295 {
3296 putfnetnode(fn);
cab0b442 3297 return;
d3372da9 3298 }
1c4b02cd 3299 hub = fn->data;
d3372da9 3300 peer = newdcpeer(sk);
3301 peer->fn = fn;
3302 peer->accepted = 0;
1c4b02cd 3303 peer->dcppemu = hub->dcppemu;
cab0b442 3304 sk->readcb = (void (*)(struct socket *, void *))peerread;
3305 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3306 sk->data = peer;
d3372da9 3307 socksettos(sk, confgetint("fnet", "fnptos"));
1e9d82b1 3308 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 3309 sendmynick(peer);
3310 sendpeerlock(peer);
d3372da9 3311}
3312
d1ef0200 3313static void peeraccept(struct lport *lp, struct socket *newsk, void *data)
d3372da9 3314{
3315 struct dcpeer *peer;
3316
3317 peer = newdcpeer(newsk);
3318 peer->accepted = 1;
cab0b442 3319 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3320 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3321 newsk->data = peer;
d3372da9 3322 socksettos(newsk, confgetint("fnet", "fnptos"));
1e9d82b1 3323 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3324}
3325
3326static void updatehmlist(void)
3327{
3328 int i, lev, ic, ret;
3329 struct sharecache *node;
3330 char *buf, *buf2, numbuf[32];
3331 size_t bufsize, bufdata;
3332 int fd, ibuf;
50d8d5c1 3333 FILE *out;
d3372da9 3334
3335 bufdata = 0;
3336 buf = smalloc(bufsize = 65536);
3337 node = shareroot->child;
3338 lev = 0;
3339 while(1)
3340 {
3341 ic = 0;
1d85f24b 3342 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 3343 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3344 {
3345 for(i = 0; i < lev; i++)
3346 addtobuf(buf, 9);
3347 bufcat(buf, buf2, strlen(buf2));
3348 free(buf2);
3349 if(node->f.b.type == FILE_REG)
3350 {
3351 addtobuf(buf, '|');
dcf7a1a2 3352 sprintf(numbuf, "%ji", (intmax_t)node->size);
d3372da9 3353 bufcat(buf, numbuf, strlen(numbuf));
3354 }
3355 addtobuf(buf, 13);
3356 addtobuf(buf, 10);
3357 } else {
3358 ic = 1;
3359 }
3360 if((node->child != NULL) && !ic)
3361 {
3362 lev++;
3363 node = node->child;
3364 } else if(node->next != NULL) {
3365 node = node->next;
3366 } else {
3367 while(node->next == NULL)
3368 {
3369 lev--;
3370 node = node->parent;
3371 if(node == shareroot)
3372 break;
3373 }
3374 if(node == shareroot)
3375 break;
3376 node = node->next;
3377 }
3378 }
3379 if(hmlistname != NULL)
3380 {
3381 unlink(hmlistname);
3382 free(hmlistname);
3383 }
3384 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3385 if((fd = mkstemp(hmlistname)) < 0)
3386 {
3387 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3388 free(hmlistname);
3389 hmlistname = NULL;
3390 } else {
50d8d5c1 3391 out = fdopen(fd, "w");
d3372da9 3392 /*
3393 * I do not want to implement a good Huffman encoder, and it's not
3394 * like Huffman encoding actually yields any impressive results
3395 * for DC file lists anyway, so I'll just output a bogus
3396 * tree. Implement a good encoder if you want to.
3397 */
50d8d5c1
FT		 3398 fwrite("HE3\r\0", 1, 5, out);
3399 fwrite(&bufdata, 4, 1, out); /* XXX: Endian unsafe */
d3372da9 3400 ibuf = 256;
50d8d5c1 3401 fwrite(&ibuf, 2, 1, out);
d3372da9 3402 ibuf = 8;
3403 for(i = 0; i < 256; i++)
3404 {
50d8d5c1
FT		 3405 fwrite(&i, 1, 1, out);
3406 fwrite(&ibuf, 1, 1, out);
d3372da9 3407 }
3408 for(i = 0; i < 256; i++)
50d8d5c1 3409 fwrite(&i, 1, 1, out);
d3372da9 3410 for(buf2 = buf; bufdata > 0;)
3411 {
50d8d5c1 3412 if((ret = fwrite(buf2, 1, bufdata, out)) < 0)
d3372da9 3413 {
3414 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3415 break;
3416 }
3417 bufdata -= ret;
3418 buf2 += ret;
3419 }
50d8d5c1 3420 fclose(out);
d3372da9 3421 }
3422 free(buf);
3423}
3424
3425static struct xmlent
3426{
3427 wchar_t c;
3428 wchar_t *ent;
3429} entities[] = {
3430 {L'&', L"&amp;"},
3431 {L'\"', L"&#34;"},
3432/* {L'\'', L"&quot;"}, Emulate DC++ escaping by omitting this. */
3433 {L'\0', NULL}
3434};
3435
3436static wchar_t *escapexml(wchar_t *src)
3437{
3438 static wchar_t *buf = NULL;;
3439 int ret, c;
3440 wchar_t nbuf[32];
3441 size_t bufsize, bufdata;
3442 struct xmlent *ent;
3443
3444 if(buf != NULL)
3445 free(buf);
3446 buf = NULL;
3447 bufsize = bufdata = 0;
3448 for(; *src != L'\0'; src++)
3449 {
3450 c = wctob(*src);
3451 if((c > 0) && (c < 32))
3452 {
3453 bufcat(buf, L"&#", 2);
3454 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3455 bufcat(buf, nbuf, ret);
3456 addtobuf(buf, L';');
3457 } else {
3458 for(ent = entities; ent->ent != NULL; ent++)
3459 {
3460 if(ent->c == *src)
3461 {
3462 bufcat(buf, ent->ent, wcslen(ent->ent));
3463 break;
3464 }
3465 }
3466 if(ent->ent == NULL)
3467 addtobuf(buf, *src);
3468 }
3469 }
3470 addtobuf(buf, L'\0');
3471 return(buf);
3472}
3473
3474static void updatexmllist(void)
3475{
3476 int i, fd, lev;
3477 FILE *fs;
3478 char cidbuf[14], *namebuf;
3479 char *hashbuf;
3480 struct sharecache *node;
3481
3482 if(xmllistname != NULL)
3483 {
3484 unlink(xmllistname);
3485 free(xmllistname);
3486 }
3487 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3488 if((fd = mkstemp(xmllistname)) < 0)
3489 {
3490 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3491 free(xmllistname);
3492 xmllistname = NULL;
3493 return;
3494 }
3495 if((fs = fdopen(fd, "w")) == NULL)
3496 {
3497 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3498 unlink(xmllistname);
3499 free(xmllistname);
3500 xmllistname = NULL;
3501 close(fd);
3502 return;
3503 }
3504 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3505 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3506 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3507 cidbuf[i] = 0;
1c4b02cd 3508 if(confgetint("dc", "dcppemu"))
3509 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"DC++ 0.674\">\r\n", cidbuf);
3510 else
3511 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, "DoldaConnect" VERSION);
d3372da9 3512
3513 node = shareroot->child;
3514 lev = 0;
3515 while(1)
3516 {
3517 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3518 {
3519 for(i = 0; i < lev; i++)
3520 fputc('\t', fs);
3521 if(node->child != NULL)
3522 {
3523 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3524 node = node->child;
3525 lev++;
3526 continue;
3527 } else {
dcf7a1a2 3528 fprintf(fs, "<File Name=\"%s\" Size=\"%ji\"", namebuf, (intmax_t)node->size);
d3372da9 3529 if(node->f.b.hastth)
3530 {
3531 hashbuf = base32encode(node->hashtth, 24);
3532 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3533 free(hashbuf);
3534 }
3535 fprintf(fs, "/>\r\n");
3536 }
3537 while(node->next == NULL)
3538 {
3539 node = node->parent;
3540 if(node == shareroot)
3541 {
3542 break;
3543 } else {
3544 lev--;
3545 for(i = 0; i < lev; i++)
3546 fputc('\t', fs);
3547 fprintf(fs, "</Directory>\r\n");
3548 }
3549 }
3550 if(node == shareroot)
3551 break;
3552 node = node->next;
3553 }
3554 }
3555
1c4b02cd 3556 if(confgetint("dc", "dcppemu"))
3557 fprintf(fs, "</FileListing>");
3558 else
3559 fprintf(fs, "</FileListing>\r\n");
d3372da9 3560 fclose(fs);
3561}
3562
3563static void updatexmlbz2list(void)
3564{
3565 int err, fd;
3566 FILE *in;
3567 FILE *real;
3568 BZFILE *out;
3569 char buf[1024];
3570 size_t bufdata;
3571
3572 if(xmllistname == NULL)
3573 return;
3574 if((in = fopen(xmllistname, "r")) == NULL)
3575 {
3576 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3577 return;
3578 }
3579 if(xmlbz2listname != NULL)
3580 {
3581 unlink(xmlbz2listname);
3582 free(xmlbz2listname);
3583 }
3584 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3585 if((fd = mkstemp(xmlbz2listname)) < 0)
3586 {
3587 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3588 free(xmlbz2listname);
3589 xmlbz2listname = NULL;
3590 fclose(in);
3591 return;
3592 }
3593 if((real = fdopen(fd, "w")) == NULL)
3594 {
3595 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3596 close(fd);
3597 unlink(xmlbz2listname);
3598 free(xmlbz2listname);
3599 xmlbz2listname = NULL;
3600 fclose(in);
3601 return;
3602 }
3603 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3604 if(err != BZ_OK)
3605 {
3606 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3607 fclose(real);
3608 unlink(xmlbz2listname);
3609 free(xmlbz2listname);
3610 xmlbz2listname = NULL;
3611 fclose(in);
3612 return;
3613 }
3614 while(!feof(in))
3615 {
3616 bufdata = fread(buf, 1, sizeof(buf), in);
3617 BZ2_bzWrite(&err, out, buf, bufdata);
3618 }
3619 fclose(in);
3620 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3621 fclose(real);
3622}
3623
6305c428 3624static void listtimercb(int cancelled, void *uudata)
3625{
3626 listwritetimer = NULL;
3627 if(!cancelled)
3628 updatelists(1);
3629}
3630
3631static void updatelists(int now)
d3372da9 3632{
000ca725 3633 if((hmlistname == NULL) || (xmllistname == NULL) || (xmlbz2listname == NULL))
3634 now = 1;
6305c428 3635 if(!now)
3636 {
3637 if(listwritetimer == NULL)
ddb3658e 3638 listwritetimer = timercallback(ntime() + confgetint("cli", "hashwritedelay"), listtimercb, NULL);
6305c428 3639 return;
3640 }
3641 if(listwritetimer != NULL)
3642 canceltimer(listwritetimer);
d3372da9 3643 updatehmlist();
3644 updatexmllist();
3645 updatexmlbz2list();
6305c428 3646}
3647
3648static int shareupdate(unsigned long long uusharesize, void *data)
3649{
3650 updatelists(0);
d3372da9 3651 return(0);
3652}
3653
7395a37f
FT		 3654static char *quotestr(char *str)
3655{
3656 unsigned char *buf;
3657 unsigned char *p;
3658 size_t bufsize, bufdata;
3659 wchar_t *wbuf;
3660 static char *enc = NULL;
3661 size_t encsize, encdata;
3662
3663 buf = NULL;
3664 bufsize = bufdata = 0;
3665 for(p = (unsigned char *)str; *p; p++)
3666 {
3667 if(*p == '\b')
3668 bufcat(buf, "\\b", 2);
3669 else if(*p == '\t')
3670 bufcat(buf, "\\t", 2);
3671 else if(*p == '\n')
3672 bufcat(buf, "\\n", 2);
3673 else if(*p == '\r')
3674 bufcat(buf, "\\r", 2);
3675 else if(*p == '\\')
3676 bufcat(buf, "\\\\", 2);
3677 else if(*p >= 32)
3678 addtobuf(buf, *p);
3679 else
3680 bprintf(buf, "\\x%02x", *p);
3681 }
3682 addtobuf(buf, 0);
3683 if(enc != NULL)
3684 free(enc);
3685 enc = NULL;
3686 if((wbuf = icmbstowcs((char *)buf, DCCHARSET)) != NULL)
3687 {
3688 enc = icwcstombs(wbuf, NULL);
3689 free(wbuf);
3690 }
3691 if(enc == NULL)
3692 {
3693 encsize = encdata = 0;
3694 for(p = buf; *p; p++) {
3695 if(*p < 128)
3696 addtobuf(enc, *p);
3697 else
3698 bprintf(buf, "\\x%x", *p);
3699 }
3700 }
3701 free(buf);
3702 return(enc);
3703}
3704
c1928259 3705static void logunimpl(char *list, char *cmd, char *args)
7395a37f
FT		 3706{
3707 FILE *log;
3708
3709 if((log = fopen("/tmp/dc-unimpl", "a")) == NULL)
3710 {
3711 flog(LOG_WARNING, "could not open unimpl log: %s", strerror(errno));
3712 return;
3713 }
c1928259
FT		 3714 fputs(list, log);
3715 fputc('\t', log);
7395a37f
FT		 3716 fputs(quotestr(cmd), log);
3717 if(args != NULL)
3718 {
3719 fputc('\t', log);
3720 fputs(quotestr(args), log);
3721 }
3722 fputc('\n', log);
3723 fclose(log);
3724}
3725
d3372da9 3726static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3727{
3728 char *p;
3729 struct command *cmd;
3730
3731 if((p = strchr(qcmd->string, ' ')) != NULL)
3732 *(p++) = 0;
3733 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3734 {
3735 if(!strcmp(cmd->name, qcmd->string))
3736 break;
3737 }
3738 if(cmd->handler != NULL)
c1928259 3739 {
d3372da9 3740 cmd->handler(sk, data, qcmd->string, p);
c1928259
FT		 3741 } else if(confgetint("dc", "logunimpl")) {
3742 if(cmdlist == hubcmds)
3743 logunimpl("hub", qcmd->string, p);
3744 else if(cmdlist == peercmds)
3745 logunimpl("peer", qcmd->string, p);
3746 else
3747 logunimpl("other?!", qcmd->string, p);
3748 }
d3372da9 3749}
3750
3751static int run(void)
3752{
3753 struct fnetnode *fn, *nextfn;
3754 struct dchub *hub;
3755 struct dcpeer *peer, *nextpeer;
3756 struct qcommand *qcmd;
e0731d8c 3757 int ret, quota;
d3372da9 3758
3759 ret = 0;
e0731d8c 3760 quota = 20;
d3372da9 3761 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3762 {
3763 nextfn = fn->next;
3764 if(fn->fnet != &dcnet)
3765 continue;
3766 if(fn->data == NULL)
3767 continue;
3768 hub = (struct dchub *)fn->data;
e0731d8c 3769 while((quota > 0) && ((qcmd = ulqcmd(&hub->queue)) != NULL))
d3372da9 3770 {
3771 if(*qcmd->string == '$')
3772 {
ffa81d5f
FT		 3773 if((hub->sk != NULL) && (hub->sk->state == SOCK_EST))
3774 dispatchcommand(qcmd, hubcmds, hub->sk, fn);
d3372da9 3775 } else if(*qcmd->string != 0) {
ffa81d5f 3776 hubrecvchat(hub->sk, fn, NULL, qcmd->string);
d3372da9 3777 }
3778 freeqcmd(qcmd);
3779 ret = 1;
e0731d8c 3780 quota--;
d3372da9 3781 }
e0731d8c 3782 if(hub->queue.size < 1000)
81286a22 3783 hubread(hub->sk, fn);
e0731d8c
FT		 3784 if(quota < 1)
3785 break;
d3372da9 3786 }
e0731d8c 3787 quota = 20;
2bf4942d 3788 for(peer = peers; peer != NULL; peer = peer->next)
d3372da9 3789 {
2bf4942d 3790 while(!peer->close && (quota > 0) && ((qcmd = ulqcmd(&peer->queue)) != NULL))
d3372da9 3791 {
1e9d82b1 3792 if(peer->timeout != NULL)
3793 canceltimer(peer->timeout);
3794 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3795 if(*qcmd->string == '$')
3796 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3797 freeqcmd(qcmd);
3798 ret = 1;
e0731d8c 3799 quota--;
d3372da9 3800 }
e0731d8c 3801 if((peer->queue.size < 50) && (peer->inbufdata < 500000))
81286a22 3802 peerread(peer->sk, peer);
e0731d8c
FT		 3803 if(quota < 1)
3804 break;
d3372da9 3805 }
2bf4942d
FT		 3806 for(peer = peers; peer != NULL; peer = nextpeer)
3807 {
3808 nextpeer = peer->next;
3809 if(peer->close)
3810 freedcpeer(peer);
3811 }
d3372da9 3812 return(ret);
3813}
3814
3815static void preinit(int hup)
3816{
3817 if(hup)
3818 return;
3819 regfnet(&dcnet);
3820}
3821
3822static int updateudpport(struct configvar *var, void *uudata)
3823{
3824 struct sockaddr_in addr;
3825 struct socket *newsock;
3826
3827 memset(&addr, 0, sizeof(addr));
3828 addr.sin_family = AF_INET;
3829 addr.sin_port = htons(var->val.num);
3830 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3831 {
3832 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3833 return(0);
3834 }
cab0b442 3835 newsock->readcb = udpread;
d3372da9 3836 if(udpsock != NULL)
3837 putsock(udpsock);
3838 udpsock = newsock;
3839 return(0);
3840}
3841
3842static int updatetcpport(struct configvar *var, void *uudata)
3843{
3844 struct sockaddr_in addr;
d1ef0200 3845 struct lport *newsock;
d3372da9 3846
3847 memset(&addr, 0, sizeof(addr));
3848 addr.sin_family = AF_INET;
3849 addr.sin_port = htons(var->val.num);
3850 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3851 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3852 if(tcpsock != NULL)
d1ef0200 3853 closelport(tcpsock);
d3372da9 3854 tcpsock = newsock;
3855 return(0);
3856}
3857
3858static int init(int hup)
3859{
3860 struct sockaddr_in addr;
3861
3862 if(!hup)
3863 {
3864 GCBREG(sharechangecb, shareupdate, NULL);
3865 if(udpsock != NULL)
3866 putsock(udpsock);
3867 if(tcpsock != NULL)
d1ef0200 3868 closelport(tcpsock);
d3372da9 3869 addr.sin_family = AF_INET;
3870 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3871 addr.sin_port = htons(confgetint("dc", "udpport"));
3872 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3873 {
3874 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3875 return(1);
3876 }
cab0b442 3877 udpsock->readcb = udpread;
d3372da9 3878 addr.sin_port = htons(confgetint("dc", "tcpport"));
3879 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3880 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3881 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3882 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3883 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3884 }
3885 return(0);
3886}
3887
3888static void terminate(void)
3889{
3890 if(hmlistname != NULL)
3891 {
3892 unlink(hmlistname);
3893 free(hmlistname);
3894 }
3895 if(xmllistname != NULL)
3896 {
3897 unlink(xmllistname);
3898 free(xmllistname);
3899 }
3900 if(xmlbz2listname != NULL)
3901 {
3902 unlink(xmlbz2listname);
3903 free(xmlbz2listname);
3904 }
3905}
3906
3907static struct configvar myvars[] =
3908{
d9f89ef5 3909 /** Specifies the share description reported to other DC users. */
d3372da9 3910 {CONF_VAR_STRING, "desc", {.str = L""}},
d9f89ef5 3911 /** Specifies the speed reported to other DC users. Normal values
3912 * are 28.8Kbps, 33.6Kbps, 56Kbps, Satellite, ISDN, DSL, Cable,
3913 * LAN(T1) or LAN(T3)*/
d3372da9 3914 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
d9f89ef5 3915 /** The e-mail address to report to other DC users. */
d3372da9 3916 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
d9f89ef5 3917 /** Specifies a specific UDP port to use for DC search results. If
3918 * left unspecified, a port is allocated dynamically. Useful for
3919 * NAT routers (see also the net.visibleipv4 address for those
3920 * cases). */
d3372da9 3921 {CONF_VAR_INT, "udpport", {.num = 0}},
d9f89ef5 3922 /** Specifies a specific TCP port to use for DC peer
3923 * connections. If left unspecified, a port is allocated
3924 * dynamically. Useful for NAT routers (see also the
3925 * net.visibleipv4 address for those cases). */
d3372da9 3926 {CONF_VAR_INT, "tcpport", {.num = 0}},
d9f89ef5 3927 /** If set to true, doldacond will do its best to emulate DC++
3928 * (currently v0.674). This should be left off if at all possible,
3929 * since turning it on will violate the rules of most hubs and
3930 * thus give hub owners an actual reason to kick you if it is
3931 * detected. It might be needed for some of the more bone-headed
3932 * hub owners, though. Note that DC++ emulation can also be turned
3933 * on or off for individual hubs, overriding this setting. */
1c4b02cd 3934 {CONF_VAR_BOOL, "dcppemu", {.num = 0}},
7395a37f
FT		 3935 /** Use for debugging. If set to true, doldacond will log all
3936 * unknown commands it receives, and their arguments, to
3937 * /tmp/dc-unimpl. */
3938 {CONF_VAR_BOOL, "logunimpl", {.num = 0}},
4b544330
FT		 3939 /** If set to true, doldacond will hide its support for deflate
3940 * compression of transfers from other clients, so that they will
3941 * not request compressed uploads. Compressed transfers may
3942 * consume a non-trivial amount of CPU time on slower machines. */
3943 {CONF_VAR_BOOL, "hidedeflate", {.num = 0}},
d3372da9 3944 {CONF_VAR_END}
3945};
3946
3947static struct module me =
3948{
3949 .conf =
3950 {
3951 .vars = myvars
3952 },
3953 .preinit = preinit,
3954 .init = init,
3955 .run = run,
3956 .terminate = terminate,
3957 .name = "dc"
3958};
3959
3960MODULE(me)
Dolda Connect