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Fixed up the netcsconn fix.
[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;
d3372da9 1326 struct sockaddr_in addr;
1327
1328 hub = fn->data;
1329 if((p = strchr(args, ' ')) == NULL)
1330 return;
1331 *(p++) = 0;
1332 if(strcmp(args, hub->nativenick))
1333 return;
1334 addr.sin_family = AF_INET;
1335 args = p;
1336 if((p = strchr(args, ':')) == NULL)
1337 return;
1338 *(p++) = 0;
1339 addr.sin_port = htons(atoi(p));
1340 if(!inet_aton(args, &addr.sin_addr))
1341 return;
8d7a1e88 1342 putsock(netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn));
d3372da9 1343 getfnetnode(fn);
1344 hubhandleaction(sk, fn, cmd, args);
1345}
1346
1347static void sendctm(struct socket *sk, char *nick)
1348{
1349 struct sockaddr *addr;
1350 socklen_t addrlen;
1351
1352 if(tcpsock == NULL)
1353 return;
f96d0914 1354 if(lstgetremotename2(tcpsock, sk, &addr, &addrlen) < 0)
d3372da9 1355 return;
1356 if(addr->sa_family == AF_INET)
1357 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1358 else
1359 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1360 free(addr);
1361}
1362
1363static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1364{
1365 struct dchub *hub;
1366 char *p;
1367
1368 hub = fn->data;
1369 if((p = strchr(args, ' ')) == NULL)
1370 return;
1371 *(p++) = 0;
1372 if(strcmp(p, hub->nativenick))
1373 return;
1374 sendctm(sk, args);
1375 expectpeer(args, fn);
1376 hubhandleaction(sk, fn, cmd, args);
1377}
1378
1379static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1380{
1381 struct dchub *hub;
1382 struct fnetnode *node;
1383 int numhubs;
1384
1385 hub = fn->data;
1386 numhubs = 0;
1387 for(node = fnetnodes; node != NULL; node = node->next)
1388 {
1389 if(node->state == FNN_EST)
1390 numhubs++;
1391 }
1392 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1393 hubhandleaction(sk, fn, cmd, args);
1394}
1395
1396static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1397{
1398 struct dchub *hub;
1399 char *p, *p2;
1400
1401 hub = fn->data;
1402 p = args;
1403 if((p2 = strchr(p, ' ')) == NULL)
1404 return;
1405 *(p2++) = 0;
1406 p = p2;
1407 if((p2 = strchr(p, ' ')) == NULL)
1408 return;
1409 *(p2++) = 0;
1410 if(strcmp(p, "From:"))
1411 return;
1412 p = p2;
1413 if((p2 = strstr(p, " $")) == NULL)
1414 return;
1415 *p2 = 0;
1416 p2 += 2;
ffa81d5f 1417 hubrecvchat(hub->sk, fn, p, p2);
d3372da9 1418 hubhandleaction(sk, fn, cmd, args);
1419}
1420
1421static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1422{
1423 struct dchub *hub;
d86b7a9f 1424 char *p, *p2, *buf;
d3372da9 1425 char *nick, *filename, *hubname;
dcf7a1a2
FT		 1426 off_t size;
1427 int slots;
d86b7a9f 1428 size_t buflen;
d3372da9 1429 struct srchres *sr;
1430 wchar_t *wnick, *wfile;
1431
1432 hub = fn->data;
1433 nick = p = args;
1434 if((p2 = strchr(p, ' ')) == NULL)
1435 return;
1436 *p2 = 0;
1437 p = p2 + 1;
1438 filename = p;
1439 if((p2 = strchr(p, 5)) == NULL)
1440 return;
1441 *p2 = 0;
1442 p = p2 + 1;
1443 if((p2 = strchr(p, ' ')) == NULL)
1444 return;
1445 *p2 = 0;
dcf7a1a2 1446 size = strtoll(p, NULL, 10);
d3372da9 1447 p = p2 + 1;
1448 if((p2 = strchr(p, '/')) == NULL)
1449 return;
1450 *p2 = 0;
1451 slots = atoi(p);
1452 p = p2 + 1;
1453 if((p2 = strchr(p, 5)) == NULL)
1454 return;
1455 p = p2 + 1;
1456 hubname = p;
1457 if((p2 = strstr(p, " (")) == NULL)
1458 return;
1459 *p2 = 0;
1d85f24b 1460 if((wnick = icmbstowcs(nick, hub->charset)) == NULL)
d3372da9 1461 return;
1d85f24b 1462 /* Use DCCHARSET in $Get paths until further researched... */
040118de 1463 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 1464 {
1465 free(wnick);
1466 return;
1467 }
1468 sr = newsrchres(&dcnet, wfile, wnick);
1469 if(sr->peernick != NULL)
1470 free(sr->peernick);
1471 sr->peernick = swcsdup(wnick);
1472 sr->size = size;
1473 sr->slots = slots;
1474 free(wfile);
1475 free(wnick);
d86b7a9f 1476 if(!strncmp(hubname, "TTH:", 4))
1477 {
1478 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1479 {
1480 if(buflen == 24)
1481 sr->hash = newhash(L"TTH", 24, buf);
1482 free(buf);
1483 }
1484 }
d3372da9 1485 getfnetnode(sr->fn = fn);
1486 submitsrchres(sr);
1487 freesrchres(sr);
1488 hubhandleaction(sk, fn, cmd, args);
1489}
1490
1491static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1492{
1493 /* Do nothing for now. */
1494}
1495
48509089 1496static void cmd_getpass(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1497{
1498 struct dchub *hub;
1c4b02cd 1499 wchar_t *pw;
48509089 1500 char *mbspw;
1501
1502 hub = fn->data;
1c4b02cd 1503 pw = wpfind(fn->args, L"password");
1d85f24b 1504 if((pw == NULL) || ((mbspw = icwcstombs(pw, hub->charset)) == NULL))
48509089 1505 {
1506 killfnetnode(fn);
1507 return;
1508 }
1509 qstrf(sk, "$MyPass %s|", mbspw);
1510 free(mbspw);
fcd0627b 1511 fn->regstatus = FNNS_REG;
48509089 1512 hubhandleaction(sk, fn, cmd, args);
1513}
1514
c9b3ad74 1515static void cmd_logedin(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1516{
1517 struct dchub *hub;
1518
1519 hub = fn->data;
fcd0627b 1520 fn->regstatus = FNNS_OP;
c9b3ad74 1521 hubhandleaction(sk, fn, cmd, args);
1522}
1523
08b74f8c
FT		 1524static void cmd_hubsupports(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1525{
1526 struct dchub *hub;
1527 int i;
1528 char *p, *p2;
1529 char **arr;
1530 size_t arrsize, arrdata;
1531
1532 hub = fn->data;
1533 if(hub->supports != NULL)
1534 {
1535 for(i = 0; hub->supports[i] != NULL; i++)
1536 free(hub->supports[i]);
1537 free(hub->supports);
1538 }
1539 arr = NULL;
1540 arrsize = arrdata = 0;
1541 p = args;
1542 do
1543 {
1544 if((p2 = strchr(p, ' ')) != NULL)
1545 *(p2++) = 0;
1546 if(*p == 0)
1547 continue;
1548 addtobuf(arr, sstrdup(p));
1549 } while((p = p2) != NULL);
1550 addtobuf(arr, NULL);
1551 hub->supports = arr;
1552}
1553
d3372da9 1554static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1555{
9a2d6cb8 1556 struct dcexppeer *expect;
1c4b02cd 1557 struct dchub *hub;
9a2d6cb8 1558
d3372da9 1559 if(peer->nativename != NULL)
1560 free(peer->nativename);
1561 peer->nativename = sstrdup(args);
1562 if(peer->wcsname != NULL)
1563 free(peer->wcsname);
1d85f24b 1564 if((peer->wcsname = icmbstowcs(peer->nativename, peer->charset)) == NULL)
d3372da9 1565 {
2bf4942d 1566 peer->close = 1;
d3372da9 1567 return;
1568 }
9a2d6cb8 1569 if(peer->accepted)
1570 {
1571 for(expect = expected; expect != NULL; expect = expect->next)
1572 {
1573 if(!strcmp(expect->nick, args))
1574 break;
1575 }
1576 if(expect == NULL)
1577 {
1578 peer->fn = NULL;
1579 } else {
1c4b02cd 1580 hub = expect->fn->data;
9a2d6cb8 1581 peer->fn = expect->fn;
1582 getfnetnode(peer->fn);
1c4b02cd 1583 peer->dcppemu = hub->dcppemu;
9a2d6cb8 1584 freeexppeer(expect);
1585 }
1586 }
d3372da9 1587}
1588
1589static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1590{
1591 char *p;
9a2d6cb8 1592 int mydir;
1593 struct transfer *transfer;
d3372da9 1594
1595 if((p = strchr(args, ' ')) == NULL)
1596 return;
1597 *p = 0;
1598 if(!strcmp(args, "Upload"))
9a2d6cb8 1599 mydir = TRNSD_DOWN;
d3372da9 1600 if(!strcmp(args, "Download"))
9a2d6cb8 1601 mydir = TRNSD_UP;
1602 if(peer->accepted)
1603 {
1604 if((peer->transfer == NULL) || (mydir != peer->direction))
1605 {
2bf4942d 1606 peer->close = 1;
9a2d6cb8 1607 return;
1608 }
1b14d3d8 1609 if(peer->direction == TRNSD_DOWN)
1610 requestfile(peer);
9a2d6cb8 1611 } else {
1612 if(peer->wcsname == NULL)
1613 {
2bf4942d 1614 peer->close = 1;
9a2d6cb8 1615 return;
1616 }
1617 peer->direction = mydir;
1618 if(peer->direction == TRNSD_UP)
1619 {
01663fd9 1620 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1621 {
2bf4942d 1622 peer->close = 1;
01663fd9 1623 return;
1624 }
1ff9e8ea 1625 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1626 } else {
1627 if((transfer = finddownload(peer->wcsname)) == NULL)
1628 {
2bf4942d 1629 peer->close = 1;
9a2d6cb8 1630 return;
1631 }
1ff9e8ea 1632 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1633 transfersetstate(transfer, TRNS_HS);
1634 }
1635 transfersetnick(transfer, peer->wcsname);
1636 peer->transfer = transfer;
1637 if(peer->extended)
1638 sendsupports(peer);
1639 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1640 if(peer->key != NULL)
1641 qstrf(sk, "$Key %s|", peer->key);
1642 if(peer->direction == TRNSD_DOWN)
1643 requestfile(peer);
1644 }
d3372da9 1645}
1646
1647static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1648{
9a2d6cb8 1649 char *p, *key;
1650 struct transfer *transfer;
d3372da9 1651
1652 if((p = strchr(args, ' ')) == NULL)
1653 return;
1654 *p = 0;
1655 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1656 peer->extended = 1;
9a2d6cb8 1657 key = dcmakekey(args);
1658 if(peer->accepted)
1659 {
1660 if(peer->wcsname == NULL)
1661 {
2bf4942d 1662 peer->close = 1;
9a2d6cb8 1663 return;
1664 }
1665 sendmynick(peer);
1666 sendpeerlock(peer);
1667 if(peer->extended)
1668 sendsupports(peer);
1669 if((transfer = finddownload(peer->wcsname)) == NULL)
1670 {
01663fd9 1671 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1672 {
2bf4942d 1673 peer->close = 1;
01663fd9 1674 return;
1675 }
9a2d6cb8 1676 peer->direction = TRNSD_UP;
1ff9e8ea 1677 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1678 } else {
1679 peer->direction = TRNSD_DOWN;
1ff9e8ea 1680 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1681 transfersetstate(transfer, TRNS_HS);
1682 }
1683 transfersetnick(transfer, peer->wcsname);
1684 peer->transfer = transfer;
1685 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1686 qstrf(sk, "$Key %s|", key);
62da2712 1687 free(key);
9a2d6cb8 1688 } else {
1689 if(peer->key != NULL)
1690 free(peer->key);
1691 peer->key = key;
1692 }
d3372da9 1693}
1694
1695static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1696{
9a2d6cb8 1697 /* NOP */
1698}
1699
1700static void startdl(struct dcpeer *peer)
1701{
1e9d82b1 1702 if(peer->timeout != NULL)
1703 canceltimer(peer->timeout);
9a2d6cb8 1704 peer->state = PEER_TRNS;
1705 transferstartdl(peer->transfer, peer->sk);
cab0b442 1706 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1707 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
9a2d6cb8 1708}
1709
1710static void startul(struct dcpeer *peer)
1711{
1e9d82b1 1712 if(peer->timeout != NULL)
1713 canceltimer(peer->timeout);
9a2d6cb8 1714 peer->state = PEER_TRNS;
1715 transferstartul(peer->transfer, peer->sk);
cab0b442 1716 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
d3372da9 1717}
1718
1719static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1720{
dcf7a1a2 1721 off_t size;
1fc81821 1722 struct transfer *transfer;
d3372da9 1723
1724 if(peer->transfer == NULL)
1725 {
2bf4942d 1726 peer->close = 1;
d3372da9 1727 return;
1728 }
dcf7a1a2 1729 size = strtoll(args, NULL, 10);
9a2d6cb8 1730 if(peer->transfer->size != size)
d3372da9 1731 {
d3372da9 1732 transfersetsize(peer->transfer, size);
1fc81821 1733 transfer = peer->transfer;
2bf4942d
FT		 1734 peer->close = 1;
1735 resettransfer(transfer);
1fc81821 1736 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 1737 return;
1738 }
9a2d6cb8 1739 startdl(peer);
1740 qstr(peer->sk, "$Send|");
d3372da9 1741}
1742
1743static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1744{
df873cd0 1745 if(peer->fetchingtthl)
1746 {
1747 peer->fetchingtthl = 0;
1748 peer->notthl = 1;
1749 requestfile(peer);
1750 return;
1751 }
d3372da9 1752 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1753 {
1754 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1755 resettransfer(peer->transfer);
1756 return;
1757 }
2bf4942d 1758 peer->close = 1;
d3372da9 1759}
1760
1761static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1762{
1763 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1764 {
1765 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1766 resettransfer(peer->transfer);
1767 return;
1768 }
2bf4942d 1769 peer->close = 1;
d3372da9 1770}
1771
1772static struct
1773{
1774 char *name;
1775 char **file;
1776 void (*func)(void);
1777} lists[] =
1778{
1779 {"MyList.DcLst", &hmlistname, updatehmlist},
1780 {"files.xml", &xmllistname, updatexmllist},
1781 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1782 {NULL, NULL}
1783};
1784
1785static int openfilelist(char *name)
1786{
1787 int i, fd;
1788 int errnobak;
1789
1790 for(i = 0; lists[i].name != NULL; i++)
1791 {
1792 if(!strcmp(name, lists[i].name))
1793 break;
1794 }
1795 errno = 0;
1796 if(lists[i].name == NULL)
1797 return(-1);
1798 fd = -1;
1799 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1800 lists[i].func();
1801 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1802 {
1803 errnobak = errno;
1804 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1805 errno = errnobak;
1806 return(-1);
1807 }
1808 return(fd);
1809}
1810
1811static struct sharecache *findbytth(char *tth32)
1812{
1813 char *buf;
1814 size_t buflen;
1815 struct sharecache *node;
1816
1817 if((buf = base32decode(tth32, &buflen)) == NULL)
1818 return(NULL);
1819 if(buflen != 24)
1820 {
1821 free(buf);
1822 return(NULL);
1823 }
1824 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1825 {
1826 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1827 break;
1828 }
1829 free(buf);
1830 return(node);
1831}
1832
1833static struct sharecache *resdcpath(char *path, char *charset, char sep)
1834{
1835 struct sharecache *node;
1836 char *p, *p2;
1837
1838 node = shareroot;
1839 p = path;
1840 while(p != NULL)
1841 {
1842 if((p2 = strchr(p, sep)) != NULL)
1843 *(p2++) = 0;
1844 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1845 return(NULL);
1846 p = p2;
1847 }
1848 return(node);
1849}
1850
1851static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1852{
dcf7a1a2 1853 off_t offset;
d3372da9 1854 char *p, *buf;
1855 wchar_t *buf2;
1856 struct sharecache *node;
1857 struct socket *lesk;
1858 int fd;
1859 struct stat sb;
1860
1861 if(peer->transfer == NULL)
1862 {
2bf4942d 1863 peer->close = 1;
d3372da9 1864 return;
1865 }
1866 if((p = strchr(args, '$')) == NULL)
1867 {
2bf4942d 1868 peer->close = 1;
d3372da9 1869 return;
1870 }
1871 *(p++) = 0;
dcf7a1a2 1872 if((offset = (strtoll(p, NULL, 10) - 1)) < 0)
d3372da9 1873 {
2bf4942d 1874 peer->close = 1;
d3372da9 1875 return;
1876 }
1877 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1878 {
1879 qstr(sk, "$Error Could not send file list|");
2bf4942d 1880 peer->close = 1;
d3372da9 1881 return;
1882 } else if(fd >= 0) {
040118de 1883 if((buf2 = nmdc2path(args, DCCHARSET)) != NULL) {
d3372da9 1884 transfersetpath(peer->transfer, buf2);
040118de
FT		 1885 free(buf2);
1886 }
f00d7432 1887 peer->transfer->flags.b.minislot = 1;
d3372da9 1888 }
1889 if(fd < 0)
1890 {
1d85f24b 1891 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 1892 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1893 {
1894 qstrf(sk, "$Error File not in share|");
2bf4942d 1895 peer->close = 1;
d3372da9 1896 return;
1897 }
1898 if((fd = opensharecache(node)) < 0)
1899 {
1900 qstrf(sk, "$Error %s|", strerror(errno));
2bf4942d 1901 peer->close = 1;
d3372da9 1902 return;
1903 }
1904 buf = getfspath(node);
1905 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1906 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1907 else
1908 transfersetpath(peer->transfer, buf2);
1909 free(buf);
1910 }
1911 if(fstat(fd, &sb) < 0)
1912 {
1913 close(fd);
1914 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1915 qstrf(sk, "$Error|");
2bf4942d 1916 peer->close = 1;
d3372da9 1917 return;
1918 }
f00d7432 1919 if(sb.st_size < 65536)
1920 peer->transfer->flags.b.minislot = 1;
1921 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 1922 close(fd);
f00d7432 1923 qstr(sk, "$MaxedOut|");
2bf4942d 1924 peer->close = 1;
f00d7432 1925 return;
1926 }
d3372da9 1927 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1928 {
1929 close(fd);
1930 qstrf(sk, "$Error Offset out of range|");
2bf4942d 1931 peer->close = 1;
d3372da9 1932 return;
1933 }
1934 lesk = wrapsock(fd);
1935 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1936 putsock(lesk);
dcf7a1a2 1937 qstrf(sk, "$FileLength %ji|", (intmax_t)peer->transfer->size);
d3372da9 1938}
1939
1940static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1941{
1942 if(peer->transfer == NULL)
1943 {
2bf4942d 1944 peer->close = 1;
d3372da9 1945 return;
1946 }
1947 if(peer->transfer->localend == NULL)
1948 {
2bf4942d 1949 peer->close = 1;
d3372da9 1950 return;
1951 }
1952 peer->ptclose = 1;
9a2d6cb8 1953 startul(peer);
d3372da9 1954}
1955
1956static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1957{
1958 int i;
1959 char *p, *p2;
1960 char **arr;
1961 size_t arrsize, arrdata;
1962
1963 if(peer->supports != NULL)
1964 {
1965 for(i = 0; peer->supports[i] != NULL; i++)
1966 free(peer->supports[i]);
1967 free(peer->supports);
1968 }
1969 arr = NULL;
1970 arrsize = arrdata = 0;
1971 p = args;
1972 do
1973 {
1974 if((p2 = strchr(p, ' ')) != NULL)
1975 *(p2++) = 0;
1976 if(*p == 0)
1977 continue;
1978 addtobuf(arr, sstrdup(p));
1979 } while((p = p2) != NULL);
1980 addtobuf(arr, NULL);
1981 peer->supports = arr;
d3372da9 1982}
1983
1984static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1985{
1986 int fd;
1987 char *p, *p2;
dcf7a1a2 1988 off_t start, numbytes;
d3372da9 1989 char *charset, *buf;
1990 wchar_t *buf2;
1991 struct sharecache *node;
1992 struct stat sb;
1993 struct socket *lesk;
1994
1995 if(peer->transfer == NULL)
1996 {
2bf4942d 1997 peer->close = 1;
d3372da9 1998 return;
1999 }
2000 p = args;
2001 if((p2 = strchr(p, ' ')) == NULL)
2002 {
2bf4942d 2003 peer->close = 1;
d3372da9 2004 return;
2005 }
2006 *(p2++) = 0;
dcf7a1a2 2007 start = strtoll(p, NULL, 10);
d3372da9 2008 p = p2;
2009 if((p2 = strchr(p, ' ')) == NULL)
2010 {
2bf4942d 2011 peer->close = 1;
d3372da9 2012 return;
2013 }
2014 *(p2++) = 0;
dcf7a1a2 2015 numbytes = strtoll(p, NULL, 10);
d3372da9 2016 p = p2;
2017 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
2018 charset = "UTF-8";
2019 else
1d85f24b 2020 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 2021 charset = DCCHARSET;
2022 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
2023 initcompress(peer, CPRS_ZLIB);
2024 if(((fd = openfilelist(p)) < 0) && (errno != 0))
2025 {
2026 qstr(sk, "$Error Could not send file list|");
2027 return;
2028 } else if(fd >= 0) {
040118de 2029 if((buf2 = nmdc2path(args, charset)) != NULL) {
d3372da9 2030 transfersetpath(peer->transfer, buf2);
040118de
FT		 2031 free(buf2);
2032 }
f00d7432 2033 peer->transfer->flags.b.minislot = 1;
d3372da9 2034 }
2035 if(fd < 0)
2036 {
d3372da9 2037 if((node = resdcpath(p, charset, '\\')) == NULL)
2038 {
2039 qstr(sk, "$Error File not in cache|");
2040 return;
2041 }
2042 if((fd = opensharecache(node)) < 0)
2043 {
2044 qstrf(sk, "$Error %s|", strerror(errno));
2045 return;
2046 }
2047 buf = getfspath(node);
2048 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
2049 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2050 else
2051 transfersetpath(peer->transfer, buf2);
2052 free(buf);
2053 }
2054 if(fstat(fd, &sb) < 0)
2055 {
2056 close(fd);
2057 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2058 qstr(sk, "$Error|");
2059 return;
2060 }
f00d7432 2061 if(sb.st_size < 65536)
2062 peer->transfer->flags.b.minislot = 1;
2063 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 2064 close(fd);
f00d7432 2065 qstr(sk, "$MaxedOut|");
2066 return;
2067 }
d3372da9 2068 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2069 {
2070 close(fd);
2071 qstr(sk, "$Error Offset out of range|");
2072 return;
2073 }
2074 if((numbytes < 0) || (start + numbytes > sb.st_size))
2075 numbytes = sb.st_size - start;
2076 lesk = wrapsock(fd);
2077 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2078 putsock(lesk);
dcf7a1a2 2079 qstrf(sk, "$Sending %ji|", (intmax_t)numbytes);
9a2d6cb8 2080 startul(peer);
d3372da9 2081}
2082
2083static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2084{
2085 int i;
2086 char **argv, *buf;
dcf7a1a2 2087 off_t start, numbytes;
d3372da9 2088 struct sharecache *node;
2089 struct stat sb;
2090 struct socket *lesk;
2091 wchar_t *wbuf;
2092 int fd;
2093
2094 if(peer->transfer == NULL)
2095 {
2bf4942d 2096 peer->close = 1;
d3372da9 2097 return;
2098 }
2099 if((argv = parseadc(args)) == NULL)
2100 {
2bf4942d 2101 peer->close = 1;
d3372da9 2102 return;
2103 }
2104 if(parrlen(argv) < 4)
2105 {
2bf4942d 2106 peer->close = 1;
d3372da9 2107 goto out;
2108 }
dcf7a1a2
FT		 2109 start = strtoll(argv[2], NULL, 10);
2110 numbytes = strtoll(argv[3], NULL, 10);
d3372da9 2111 node = NULL;
2112 fd = -1;
2113 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
2114 {
2115 qstr(sk, "$Error Could not send file list|");
2116 goto out;
2117 } else if(fd >= 0) {
040118de 2118 if((wbuf = adc2path(argv[1])) != NULL)
d3372da9 2119 transfersetpath(peer->transfer, wbuf);
f00d7432 2120 peer->transfer->flags.b.minislot = 1;
d3372da9 2121 }
2122 if(fd < 0)
2123 {
d3372da9 2124 if(!strncmp(argv[1], "TTH/", 4))
2125 {
2126 if((node = findbytth(argv[1] + 4)) == NULL)
2127 {
2128 qstr(sk, "$Error File not in cache|");
2129 goto out;
2130 }
2131 } else {
9a2d6cb8 2132 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
d3372da9 2133 {
2134 qstr(sk, "$Error File not in cache|");
2135 goto out;
2136 }
2137 }
2138 if((fd = opensharecache(node)) < 0)
2139 {
2140 qstrf(sk, "$Error %s|", strerror(errno));
2141 goto out;
2142 }
2143 buf = getfspath(node);
2144 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
2145 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2146 else
2147 transfersetpath(peer->transfer, wbuf);
2148 free(buf);
2149 }
2150 if(!strcmp(argv[0], "file"))
2151 {
2152 for(i = 4; argv[i] != NULL; i++)
2153 {
2154 if(!strcmp(argv[i], "ZL1"))
2155 initcompress(peer, CPRS_ZLIB);
2156 }
2157 if(fstat(fd, &sb) < 0)
2158 {
2159 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2160 qstr(sk, "$Error|");
2161 goto out;
2162 }
f00d7432 2163 if(sb.st_size < 65536)
2164 peer->transfer->flags.b.minislot = 1;
2165 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
2166 qstr(sk, "$MaxedOut|");
2167 goto out;
2168 }
d3372da9 2169 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2170 {
2171 qstr(sk, "$Error Offset out of range|");
2172 goto out;
2173 }
2174 if((numbytes < 0) || (start + numbytes > sb.st_size))
2175 numbytes = sb.st_size - start;
2176 lesk = wrapsock(fd);
2177 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2178 putsock(lesk);
2179 fd = -1;
2180 qstr(sk, "$ADCSND");
2181 sendadc(sk, "file");
2182 sendadc(sk, argv[1]);
dcf7a1a2
FT		 2183 sendadcf(sk, "%ji", (intmax_t)start);
2184 sendadcf(sk, "%ji", (intmax_t)numbytes);
d3372da9 2185 if(peer->compress == CPRS_ZLIB)
2186 sendadc(sk, "ZL1");
2187 qstr(sk, "|");
9a2d6cb8 2188 startul(peer);
d3372da9 2189 } else if(!strcmp(argv[0], "tthl")) {
2190 /*
2191 * XXX: Implement full TTHL support.
2192 *
2193 * In the meantime, this is better than nothing, since it at
2194 * least allows fetching of the TTH root if it isn't already
2195 * known.
2196 */
2197 if(node == NULL)
2198 {
2199 qstr(sk, "$Error no TTHL data for virtual files|");
2200 goto out;
2201 }
2202 qstr(sk, "$ADCSND");
2203 sendadc(sk, "tthl");
2204 sendadc(sk, argv[1]);
2205 sendadc(sk, "0");
2206 sendadc(sk, "24");
2207 qstr(sk, "|");
2208 sockqueue(sk, node->hashtth, 24);
2209 } else {
2210 qstr(sk, "$Error Namespace not implemented|");
2211 goto out;
2212 }
d3372da9 2213
2214 out:
2215 if(fd >= 0)
2216 close(fd);
2217 freeparr(argv);
2218}
2219
9a2d6cb8 2220static void handletthl(struct dcpeer *peer)
2221{
2222 char buf[24];
2223
2224 while(peer->inbufdata >= 24)
2225 {
2226 pushtigertree(&peer->tth, peer->inbuf);
2227 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
e52006fe 2228 peer->curread += 24;
9a2d6cb8 2229 }
e52006fe 2230 if(peer->curread >= peer->totalsize)
9a2d6cb8 2231 {
1e9d82b1 2232 if(peer->timeout == NULL)
2233 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 2234 peer->state = PEER_CMD;
2235 synctigertree(&peer->tth);
2236 restigertree(&peer->tth, buf);
2237 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2238 requestfile(peer);
2239 }
2240}
2241
2242static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2243{
2244 char **argv;
dcf7a1a2 2245 off_t start, numbytes;
9a2d6cb8 2246
2247 if(peer->transfer == NULL)
2248 {
2bf4942d 2249 peer->close = 1;
9a2d6cb8 2250 return;
2251 }
2252 if((argv = parseadc(args)) == NULL)
2253 {
2bf4942d 2254 peer->close = 1;
9a2d6cb8 2255 return;
2256 }
2257 if(parrlen(argv) < 4)
2258 {
2bf4942d 2259 peer->close = 1;
9a2d6cb8 2260 goto out;
2261 }
dcf7a1a2
FT		 2262 start = strtoll(argv[2], NULL, 10);
2263 numbytes = strtoll(argv[3], NULL, 10);
9a2d6cb8 2264 if(!strcmp(argv[0], "tthl"))
2265 {
2266 if((start != 0) || (numbytes % 24 != 0))
2267 {
2268 /* Weird. Bail out. */
2bf4942d 2269 peer->close = 1;
9a2d6cb8 2270 goto out;
2271 }
1e9d82b1 2272 if(peer->timeout != NULL)
2273 canceltimer(peer->timeout);
9a2d6cb8 2274 peer->state = PEER_TTHL;
2275 peer->totalsize = numbytes;
2276 peer->curread = 0;
df873cd0 2277 peer->fetchingtthl = 0;
9a2d6cb8 2278 inittigertree(&peer->tth);
2279 handletthl(peer);
2280 } else if(!strcmp(argv[0], "file")) {
2281 if(start != peer->transfer->curpos)
2282 {
2bf4942d 2283 peer->close = 1;
9a2d6cb8 2284 goto out;
2285 }
2286 if(start + numbytes != peer->transfer->size)
2287 {
2288 transfersetsize(peer->transfer, start + numbytes);
2bf4942d 2289 peer->close = 1;
9a2d6cb8 2290 goto out;
2291 }
2292 startdl(peer);
cab0b442 2293 if(peer->inbufdata > 0)
2294 {
2295 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2296 peer->inbufdata = 0;
cab0b442 2297 }
9a2d6cb8 2298 } else {
2299 /* We certainly didn't request this...*/
2bf4942d 2300 peer->close = 1;
9a2d6cb8 2301 goto out;
2302 }
2303
2304 out:
2305 freeparr(argv);
2306}
2307
2308static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2309{
dcf7a1a2 2310 off_t numbytes;
9a2d6cb8 2311
2312 if(peer->transfer == NULL)
2313 {
2bf4942d 2314 peer->close = 1;
9a2d6cb8 2315 return;
2316 }
dcf7a1a2 2317 numbytes = strtoll(args, NULL, 10);
9a2d6cb8 2318 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2319 {
2320 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2bf4942d 2321 peer->close = 1;
9a2d6cb8 2322 return;
2323 }
2324 startdl(peer);
cab0b442 2325 if(peer->inbufdata > 0)
2326 {
2327 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2328 peer->inbufdata = 0;
cab0b442 2329 }
9a2d6cb8 2330}
2331
d3372da9 2332/*
2333Hub skeleton:
2334static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2335{
2336 struct dchub *hub;
2337
2338 hub = fn->data;
2339 hubhandleaction(sk, fn, cmd, args);
2340}
2341
2342Peer skeleton:
2343static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2344{
d3372da9 2345}
2346
2347*/
2348
2349static int hubreqconn(struct fnetpeer *peer)
2350{
2351 struct dchub *hub;
2352 char *mbsnick;
2353
2354 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2355 {
2356 errno = EINVAL;
2357 return(1);
2358 }
2359 if((hub = peer->fn->data) == NULL)
2360 {
2361 errno = EFAULT;
2362 return(1);
2363 }
1d85f24b 2364 if((mbsnick = icwcstombs(peer->id, hub->charset)) == NULL)
d3372da9 2365 return(1); /* Shouldn't happen, of course, but who knows... */
2366 if(tcpsock != NULL)
2367 {
ffa81d5f 2368 sendctm(hub->sk, mbsnick);
d3372da9 2369 expectpeer(mbsnick, peer->fn);
2370 } else {
ffa81d5f 2371 qstrf(hub->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
d3372da9 2372 }
2373 free(mbsnick);
2374 return(0);
2375}
2376
2377static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2378{
2379 struct dchub *hub;
2380 char *mbsstring, *mbsto;
2381
2382 hub = fn->data;
1d85f24b 2383 if((mbsto = icwcstombs(to, hub->charset)) == NULL)
d3372da9 2384 {
2385 errno = EILSEQ;
2386 return(1);
2387 }
1d85f24b 2388 if((mbsstring = icwcstombs(string, hub->charset)) == NULL)
d3372da9 2389 {
2390 errno = EILSEQ;
2391 return(1);
2392 }
2393 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2394 {
2395 free(mbsto);
2396 free(mbsstring);
2397 errno = ESRCH;
2398 return(1);
2399 }
2400 if(strchr(mbsstring, '|') != NULL)
2401 {
2402 free(mbsto);
2403 free(mbsstring);
2404 errno = EILSEQ;
2405 return(1);
2406 }
2407 if(public)
2408 {
2409 if(*to == L'\0')
2410 {
ffa81d5f 2411 qstrf(hub->sk, "<%s> %s|", hub->nativenick, mbsstring);
d3372da9 2412 } else {
ffa81d5f 2413 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2414 }
2415 } else {
ffa81d5f 2416 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2417 }
2418 free(mbsto);
2419 free(mbsstring);
2420 return(0);
2421}
2422
2423static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2424{
2425 int minl, maxl, minr, maxr, retmin, retmax;
2426
2427 switch(sexpr->op)
2428 {
2429 case SOP_AND:
2430 findsizelimit(sexpr->l, &minl, &maxl);
2431 findsizelimit(sexpr->r, &minr, &maxr);
2432 retmin = (minl > minr)?minl:minr;
2433 if((maxl != -1) && (maxr != -1))
2434 retmax = (maxl < maxr)?maxl:maxr;
2435 else if(maxl != -1)
2436 retmax = maxl;
2437 else if(maxr != -1)
2438 retmax = maxr;
2439 else
2440 retmax = -1;
2441 break;
2442 case SOP_OR:
2443 findsizelimit(sexpr->l, &minl, &maxl);
2444 findsizelimit(sexpr->r, &minr, &maxr);
2445 retmin = (minl < minr)?minl:minr;
2446 if((maxl == -1) || (maxr == -1))
2447 retmax = -1;
2448 else
2449 retmax = (maxl > maxr)?maxl:maxr;
2450 break;
2451 case SOP_NOT:
2452 findsizelimit(sexpr->l, &minl, &maxl);
2453 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2454 {
2455 retmin = 0;
2456 retmax = -1;
2457 } else if((minl == 0) && (maxl != -1)) {
2458 retmin = maxl + 1;
2459 retmax = -1;
2460 } else if((minl != 0) && (maxl == -1)) {
2461 retmin = 0;
2462 retmax = minl - 1;
2463 } else { /* This would yield two seperate intervals, which DC cannot handle */
2464 retmin = 0;
2465 retmax = -1;
2466 }
2467 case SOP_SIZELT:
2468 retmin = 0;
2469 retmax = sexpr->d.n - 1;
2470 break;
2471 case SOP_SIZEEQ:
2472 retmin = sexpr->d.n;
2473 retmax = sexpr->d.n;
2474 break;
2475 case SOP_SIZEGT:
2476 retmin = sexpr->d.n + 1;
2477 retmax = -1;
2478 break;
2479 default:
2480 retmin = 0;
2481 retmax = -1;
2482 break;
2483 }
2484 if(min != NULL)
2485 *min = retmin;
2486 if(max != NULL)
2487 *max = retmax;
2488}
2489
9d8cf743 2490static struct hash *findsehash(struct sexpr *sexpr)
2491{
2492 struct hash *h1, *h2;
2493
2494 switch(sexpr->op)
2495 {
2496 case SOP_AND:
2497 if((h1 = findsehash(sexpr->l)) != NULL)
2498 return(h1);
2499 if((h1 = findsehash(sexpr->r)) != NULL)
2500 return(h1);
2501 break;
2502 case SOP_OR:
175c86de 2503 if((h1 = findsehash(sexpr->l)) == NULL)
2504 return(NULL);
2505 if((h2 = findsehash(sexpr->r)) == NULL)
2506 return(NULL);
9d8cf743 2507 if(hashcmp(h1, h2))
2508 return(h1);
2509 break;
2510 case SOP_HASHIS:
2511 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2512 return(sexpr->d.hash);
2513 default:
2514 break;
2515 }
2516 return(NULL);
2517}
2518
d3372da9 2519static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2520{
2521 struct dchub *hub;
2522 struct wcslist *list, *cur;
2523 char *sstr, *buf, *p;
2524 size_t sstrsize, sstrdata;
2525 struct sockaddr *name;
2526 socklen_t namelen;
2527 int minsize, maxsize;
9d8cf743 2528 struct hash *hash;
d3372da9 2529
2530 hub = fn->data;
ffa81d5f 2531 if((fn->state != FNN_EST) || (hub->sk == NULL) || (hub->sk->state != SOCK_EST))
d3372da9 2532 return(1);
2533 list = findsexprstrs(srch->sexpr);
2534 findsizelimit(srch->sexpr, &minsize, &maxsize);
9d8cf743 2535 hash = findsehash(srch->sexpr);
d3372da9 2536 if((minsize != 0) && (maxsize != -1))
2537 {
2538 /* Choose either minsize or maxsize by trying to determine
2539 * which choice will be most restrictive. The result can be
2540 * approximative at best anyway, so don't try too hard... */
2541 if((50000000 - maxsize) > (minsize - 50000000))
2542 minsize = 0;
2543 else
2544 maxsize = -1;
2545 }
d3372da9 2546 sstr = NULL;
2547 sstrsize = sstrdata = 0;
9d8cf743 2548 if((hash != NULL) && (hash->len == 24))
d3372da9 2549 {
9d8cf743 2550 /* Prioritize hash searches above all else */
2551 bufcat(sstr, "F?T?0?9?TTH:", 12);
2552 buf = base32encode(hash->buf, hash->len);
2553
2554 bufcat(sstr, buf, 39);
2555 free(buf);
2556 } else {
2557 if(minsize != 0)
d3372da9 2558 {
9d8cf743 2559 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2560 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
9d8cf743 2561 } else if(maxsize != -1) {
2562 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2563 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
9d8cf743 2564 } else {
2565 bufcat(sstr, "F?F?0?1?", 8);
2566 }
2567 if(list != NULL)
2568 {
2569 for(cur = list; cur != NULL; cur = cur->next)
d3372da9 2570 {
1d85f24b 2571 /* Use DCCHARSET in $Get paths until further researched... */
9d8cf743 2572 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2573 {
2574 /* Can't find anything anyway if the search expression
2575 * requires characters outside DC's charset. There's
2576 * nothing technically wrong with the search itself,
2577 * however, so return success. This should be
2578 * considered as an optimization. */
2579 freesl(&list);
2580 if(sstr != NULL)
2581 free(sstr);
2582 return(0);
2583 }
2584 if(cur != list)
2585 addtobuf(sstr, '$');
2586 /*
2587 * It probably doesn't hurt if buf contains any extra
2588 * dollar signs - it will just result in extra search
2589 * terms, and the extraneous results will be filtered by
2590 * the search layer anyway. It hurts if it contains any
2591 * pipes, though, so let's sell them for money.
2592 */
2593 for(p = buf; *p; p++)
2594 {
2595 if(*p == '|')
2596 *p = '$';
2597 }
2598 bufcat(sstr, buf, strlen(buf));
2599 free(buf);
d3372da9 2600 }
9d8cf743 2601 } else {
2602 /* Will match all files... :-/ */
2603 addtobuf(sstr, '.');
d3372da9 2604 }
d3372da9 2605 }
2606 addtobuf(sstr, 0);
2607 if(tcpsock != NULL)
2608 {
ffa81d5f 2609 if(sockgetremotename2(udpsock, hub->sk, &name, &namelen) < 0)
d3372da9 2610 {
2611 flog(LOG_WARNING, "cannot get address of UDP socket");
2612 } else {
ffa81d5f 2613 qstrf(hub->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
d3372da9 2614 free(name);
2615 }
2616 } else {
ffa81d5f 2617 qstrf(hub->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
d3372da9 2618 }
2619 free(sstr);
2620 freesl(&list);
2621 fn->lastsrch = time(NULL);
2622 return(0);
2623}
2624
2625#undef skipcmd
2626#undef qstr
2627#undef qstrf
2628
2629#define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
8b930085 2630static struct command hubcmds[] =
d3372da9 2631{
2632 {"$Lock", cc(cmd_lock)},
2633 {"$HubName", cc(cmd_hubname)},
2634 {"$Hello", cc(cmd_hello)},
2635 {"$Quit", cc(cmd_quit)},
2636 {"$NickList", cc(cmd_nicklist)},
2637 {"$OpList", cc(cmd_oplist)},
2638 {"$MyINFO", cc(cmd_myinfo)},
2639 {"$ForceMove", cc(cmd_forcemove)},
8cb2d75b
FT		 2640 {"$Search", cc(cmd_search), .limit = 100},
2641 {"$MultiSearch", cc(cmd_search), .limit = 50},
2642 {"$ConnectToMe", cc(cmd_connecttome), .limit = 200},
2643 {"$RevConnectToMe", cc(cmd_revconnecttome), .limit = 500},
d3372da9 2644 {"$GetNetInfo", cc(cmd_getnetinfo)},
2645 {"$To:", cc(cmd_to)},
2646 {"$SR", cc(cmd_sr)},
2647 {"$UserCommand", cc(cmd_usercommand)},
48509089 2648 {"$GetPass", cc(cmd_getpass)},
c9b3ad74 2649 {"$LogedIn", cc(cmd_logedin)}, /* sic */
08b74f8c 2650 {"$Supports", cc(cmd_hubsupports)},
d3372da9 2651 {NULL, NULL}
2652};
2653
8b930085 2654static struct command peercmds[] =
d3372da9 2655{
2656 {"$MyNick", cc(cmd_mynick)},
2657 {"$Lock", cc(cmd_peerlock)},
2658 {"$Direction", cc(cmd_direction)},
2659 {"$Key", cc(cmd_key)},
2660 {"$FileLength", cc(cmd_filelength)},
2661 {"$Error", cc(cmd_error)},
2662 {"$MaxedOut", cc(cmd_maxedout)},
2663 {"$Get", cc(cmd_get)},
2664 {"$Send", cc(cmd_send)},
2665 {"$Supports", cc(cmd_supports)},
2666 {"$GetBlock", cc(cmd_getblock)},
2667 {"$UGetBlock", cc(cmd_getblock)},
2668 {"$GetZBlock", cc(cmd_getblock)},
2669 {"$UGetZBlock", cc(cmd_getblock)},
2670 {"$ADCGET", cc(cmd_adcget)},
8cb2d75b
FT		 2671 {"$ADCSND", cc(cmd_adcsnd), .stop = 1},
2672 {"$Sending", cc(cmd_sending), .stop = 1},
d3372da9 2673 {NULL, NULL}
2674};
2675#undef cc
2676
d3372da9 2677static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2678{
2679 int ret;
2680 void *buf;
c7185019 2681 unsigned char outbuf[1024];
d3372da9 2682 z_stream *cstr;
2683 size_t bufsize;
2684
2685 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2686 {
81286a22 2687 if(sockqueueleft(peer->sk) > 0)
d3372da9 2688 {
1ff9e8ea 2689 if((buf = sockgetinbuf(peer->trpipe, &bufsize)) != NULL)
d3372da9 2690 {
1ff9e8ea
FT		 2691 if((transfer->endpos >= 0) && (transfer->curpos + bufsize >= transfer->endpos))
2692 bufsize = transfer->endpos - transfer->curpos;
2693 if(bufsize > 0) {
2694 if(peer->compress == CPRS_NONE)
d3372da9 2695 {
1ff9e8ea
FT		 2696 sockqueue(peer->sk, buf, bufsize);
2697 } else if(peer->compress == CPRS_ZLIB) {
2698 cstr = peer->cprsdata;
2699 cstr->next_in = buf;
2700 cstr->avail_in = bufsize;
2701 while(cstr->avail_in > 0)
d3372da9 2702 {
1ff9e8ea
FT		 2703 cstr->next_out = outbuf;
2704 cstr->avail_out = sizeof(outbuf);
2705 if((ret = deflate(cstr, 0)) != Z_OK)
2706 {
2707 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2708 freedcpeer(peer);
2709 return;
2710 }
2711 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
d3372da9 2712 }
d3372da9 2713 }
2714 }
2715 free(buf);
2716 }
2717 if(peer->state == PEER_SYNC)
2718 {
2719 if(peer->compress == CPRS_ZLIB)
2720 {
2721 cstr = peer->cprsdata;
2722 cstr->next_in = NULL;
2723 cstr->avail_in = 0;
2724 do
2725 {
2726 cstr->next_out = outbuf;
2727 cstr->avail_out = sizeof(outbuf);
2728 ret = deflate(cstr, Z_FINISH);
2729 if((ret != Z_OK) && (ret != Z_STREAM_END))
2730 {
2731 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2732 freedcpeer(peer);
2733 return;
2734 }
2735 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2736 } while(ret != Z_STREAM_END);
2737 }
2738 if(peer->ptclose)
2739 {
2740 freedcpeer(peer);
2741 } else {
1e9d82b1 2742 if(peer->timeout == NULL)
2743 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 2744 peer->state = PEER_CMD;
2745 endcompress(peer);
2746 transfersetstate(transfer, TRNS_HS);
2747 socksettos(peer->sk, confgetint("fnet", "fnptos"));
bfc261fe 2748 transfer->flags.b.minislot = 0;
cab0b442 2749 peer->sk->writecb = NULL;
d3372da9 2750 }
2751 }
2752 }
2753 }
2754}
2755
1ff9e8ea
FT		 2756void trpiperead(struct socket *sk, struct dcpeer *peer)
2757{
2758 dctransgotdata(peer->transfer, peer);
2759}
2760
2761void trpipewrite(struct socket *sk, struct dcpeer *peer)
2762{
2763}
2764
2765void trpipeerr(struct socket *sk, int errno, struct dcpeer *peer)
d3372da9 2766{
2767 peer->state = PEER_SYNC;
1ff9e8ea
FT		 2768 dctransgotdata(peer->transfer, peer);
2769 CBUNREG(peer->transfer, trans_filterout, peer);
2770}
2771
2772static struct socket *mktrpipe(struct dcpeer *peer)
2773{
2774 struct socket *sk;
2775
2776 sk = netsockpipe();
2777 sk->data = peer;
2778 sk->readcb = (void (*)(struct socket *, void *))trpiperead;
2779 sk->writecb = (void (*)(struct socket *, void *))trpipewrite;
2780 sk->errcb = (void (*)(struct socket *, int, void *))trpipeerr;
2781 return(sk);
d3372da9 2782}
2783
cab0b442 2784static void transread(struct socket *sk, struct dcpeer *peer)
d3372da9 2785{
cab0b442 2786 void *buf;
2787 size_t bufsize;
d3372da9 2788
1ff9e8ea 2789 if(sockqueueleft(peer->trpipe) < 0)
81286a22 2790 return;
cab0b442 2791 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
2792 return;
d3372da9 2793 if(peer->transfer == NULL)
2794 {
cab0b442 2795 free(buf);
d3372da9 2796 freedcpeer(peer);
2797 return;
2798 }
1ff9e8ea 2799 sockqueue(peer->trpipe, buf, bufsize);
cab0b442 2800 free(buf);
d3372da9 2801 if(peer->transfer->curpos >= peer->transfer->size)
2802 {
1ff9e8ea
FT		 2803 closesock(peer->trpipe);
2804 quitsock(peer->trpipe);
2805 peer->close = 1;
d3372da9 2806 return;
2807 }
81286a22
FT		 2808}
2809
cab0b442 2810static void transerr(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 2811{
2812 struct transfer *transfer;
2813
2814 if((transfer = peer->transfer) == NULL)
cab0b442 2815 {
2816 freedcpeer(peer);
d3372da9 2817 return;
cab0b442 2818 }
1ff9e8ea
FT		 2819 closesock(peer->trpipe);
2820 quitsock(peer->trpipe);
2821 peer->close = 1;
d3372da9 2822}
2823
cab0b442 2824static void transwrite(struct socket *sk, struct dcpeer *peer)
d3372da9 2825{
2826 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
cab0b442 2827 return;
d3372da9 2828 if(peer->transfer == NULL)
2829 {
2830 freedcpeer(peer);
cab0b442 2831 return;
d3372da9 2832 }
2833 dctransgotdata(peer->transfer, peer);
2834}
2835
cab0b442 2836static void udpread(struct socket *sk, void *data)
d3372da9 2837{
d86b7a9f 2838 char *buf, *p, *p2, *hashbuf;
2839 size_t buflen, hashlen;
d3372da9 2840 char *nick, *filename, *hubname;
99a28d47 2841 struct sockaddr_in hubaddr;
d1ef0200 2842 struct sockaddr *addrbuf;
dcf7a1a2
FT		 2843 off_t size;
2844 int slots;
d3372da9 2845 struct fnetnode *fn, *myfn;
2846 struct dchub *hub;
2847 struct srchres *sr;
2848 wchar_t *wnick, *wfile;
d86b7a9f 2849 struct hash *hash;
d3372da9 2850
2851 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
cab0b442 2852 return;
d3372da9 2853 buf = srealloc(buf, buflen + 1);
2854 buf[buflen] = 0;
2855 if(!strncmp(buf, "$SR ", 4))
2856 {
2857 p = buf + 4;
2858 nick = p;
2859 if((p2 = strchr(p, ' ')) == NULL)
2860 {
2861 free(buf);
cab0b442 2862 return;
d3372da9 2863 }
2864 *p2 = 0;
2865 p = p2 + 1;
2866 filename = p;
2867 if((p2 = strchr(p, 5)) == NULL)
2868 {
2869 free(buf);
cab0b442 2870 return;
d3372da9 2871 }
2872 *p2 = 0;
2873 p = p2 + 1;
2874 if((p2 = strchr(p, ' ')) == NULL)
2875 {
2876 free(buf);
cab0b442 2877 return;
d3372da9 2878 }
2879 *p2 = 0;
dcf7a1a2 2880 size = strtoll(p, NULL, 10);
d3372da9 2881 p = p2 + 1;
2882 if((p2 = strchr(p, '/')) == NULL)
2883 {
2884 free(buf);
cab0b442 2885 return;
d3372da9 2886 }
2887 *p2 = 0;
2888 slots = atoi(p);
2889 p = p2 + 1;
2890 if((p2 = strchr(p, 5)) == NULL)
2891 {
2892 free(buf);
cab0b442 2893 return;
d3372da9 2894 }
2895 p = p2 + 1;
2896 hubname = p;
2897 if((p2 = strstr(p, " (")) == NULL)
2898 {
2899 free(buf);
cab0b442 2900 return;
d3372da9 2901 }
2902 *p2 = 0;
99a28d47 2903 p = p2 + 2;
2904 if((p2 = strchr(p, ':')) == NULL)
2905 {
2906 free(buf);
cab0b442 2907 return;
99a28d47 2908 }
870bf4ad 2909 *(p2++) = 0;
99a28d47 2910 hubaddr.sin_family = AF_INET;
2911 if(!inet_aton(p, &hubaddr.sin_addr))
2912 {
2913 free(buf);
cab0b442 2914 return;
99a28d47 2915 }
2916 p = p2;
2917 if((p2 = strchr(p, ')')) == NULL)
2918 {
2919 free(buf);
cab0b442 2920 return;
99a28d47 2921 }
2922 *p2 = 0;
2923 hubaddr.sin_port = htons(atoi(p));
1d85f24b 2924 /* Use DCCHARSET in $Get paths until further researched... */
040118de 2925 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 2926 {
d3372da9 2927 free(buf);
cab0b442 2928 return;
d3372da9 2929 }
2930 myfn = NULL;
d86b7a9f 2931 hash = NULL;
2932 if(!strncmp(hubname, "TTH:", 4))
d3372da9 2933 {
d86b7a9f 2934 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2935 {
2936 if(hashlen == 24)
2937 hash = newhash(L"TTH", 24, hashbuf);
2938 free(hashbuf);
2939 }
2940 } else {
2941 for(fn = fnetnodes; fn != NULL; fn = fn->next)
d3372da9 2942 {
d86b7a9f 2943 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
d3372da9 2944 {
d86b7a9f 2945 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
d3372da9 2946 {
d86b7a9f 2947 if(myfn == NULL)
2948 {
2949 myfn = fn;
2950 } else {
2951 myfn = NULL;
2952 break;
2953 }
d3372da9 2954 }
2955 }
2956 }
2957 }
99a28d47 2958 if(myfn == NULL)
2959 {
2960 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2961 {
d1ef0200 2962 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL) && !sockpeeraddr(hub->sk, &addrbuf, NULL))
99a28d47 2963 {
d1ef0200 2964 if((hub->sk != NULL) && addreq(addrbuf, (struct sockaddr *)&hubaddr))
ffa81d5f
FT		 2965 {
2966 myfn = fn;
42a86a24 2967 free(addrbuf);
ffa81d5f
FT		 2968 break;
2969 }
d1ef0200 2970 free(addrbuf);
99a28d47 2971 }
2972 }
2973 }
1d85f24b 2974 hub = NULL;
2975 if(myfn != NULL)
2976 hub = myfn->data;
2977 if((wnick = icmbstowcs(nick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
2978 {
2979 free(buf);
cab0b442 2980 return;
1d85f24b 2981 }
d3372da9 2982 sr = newsrchres(&dcnet, wfile, wnick);
2983 if(sr->peernick != NULL)
2984 free(sr->peernick);
2985 sr->peernick = swcsdup(wnick);
2986 sr->size = size;
2987 sr->slots = slots;
2988 free(wfile);
2989 free(wnick);
2990 if(myfn != NULL)
2991 getfnetnode(sr->fn = myfn);
d86b7a9f 2992 if(hash != NULL)
2993 sr->hash = hash;
d3372da9 2994 submitsrchres(sr);
2995 freesrchres(sr);
2996 }
2997 free(buf);
2998}
2999
3000static void hubread(struct socket *sk, struct fnetnode *fn)
3001{
3002 struct dchub *hub;
8cb2d75b 3003 struct command *cmd;
d3372da9 3004 char *newbuf;
8cb2d75b 3005 size_t datalen, cnlen;
c319fb93 3006 char *p, *p2;
d3372da9 3007
3008 hub = (struct dchub *)fn->data;
81286a22
FT		 3009 if(hub->queue.size > 1000)
3010 return;
d3372da9 3011 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
3012 return;
3013 if(hub->inbufdata > 500000) /* Discard possible malicious data */
3014 hub->inbufdata = 0;
3015 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
3016 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
3017 free(newbuf);
c319fb93 3018 p = hub->inbuf;
d3372da9 3019 hub->inbufdata += datalen;
28a3ef52 3020 while((p - hub->inbuf < hub->inbufdata) && ((p2 = memchr(p, '|', hub->inbufdata - (p - hub->inbuf))) != NULL))
d3372da9 3021 {
c319fb93 3022 *(p2++) = 0;
8cb2d75b
FT		 3023 for(cmd = hubcmds; cmd->handler != NULL; cmd++)
3024 {
3025 cnlen = strlen(cmd->name);
c319fb93 3026 if(!strncmp(p, cmd->name, cnlen) && ((p[cnlen] == ' ') || (p[cnlen] == 0)))
8cb2d75b
FT		 3027 break;
3028 }
3029 if((cmd->limit == 0) || (hub->queue.size < cmd->limit))
c319fb93 3030 newqcmd(&hub->queue, p);
c319fb93 3031 p = p2;
d3372da9 3032 }
c319fb93 3033 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
d3372da9 3034}
3035
3036static void huberr(struct socket *sk, int err, struct fnetnode *fn)
3037{
3038 killfnetnode(fn);
3039}
3040
3041static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
3042{
3043 struct dchub *hub;
3044 char *buf;
3045
3046 hub = fn->data;
1d85f24b 3047 if((buf = icwcstombs(newnick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
d3372da9 3048 return(1);
3049 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
3050 {
3051 free(buf);
3052 return(1);
3053 }
3054 if(hub == NULL) /* Not yet connected */
3055 {
3056 free(buf);
3057 return(0);
3058 }
3059 if(hub->nativenick != NULL)
3060 free(hub->nativenick);
3061 hub->nativenick = buf;
3062 return(0);
3063}
3064
3065static struct dchub *newdchub(struct fnetnode *fn)
3066{
3067 struct dchub *new;
1c4b02cd 3068 wchar_t *emu;
1d85f24b 3069 wchar_t *wcharset;
3070 char *charset;
d3372da9 3071
3072 new = smalloc(sizeof(*new));
3073 memset(new, 0, sizeof(*new));
3074 fn->data = new;
1c4b02cd 3075 if(confgetint("dc", "dcppemu"))
3076 new->dcppemu = 1;
3077 if((emu = wpfind(fn->args, L"dcppemu")) != NULL)
3078 {
3079 if(*emu == L'y')
3080 new->dcppemu = 1;
3081 if(*emu == L'n')
3082 new->dcppemu = 0;
3083 }
1d85f24b 3084 charset = NULL;
3085 if((wcharset = wpfind(fn->args, L"charset")) != NULL)
3086 {
3087 if((charset = icwcstombs(wcharset, "US-ASCII")) != NULL)
3088 {
3089 if(!havecharset(charset))
3090 {
3091 free(charset);
3092 charset = NULL;
3093 }
3094 }
3095 }
3096 if(charset != NULL)
3097 new->charset = charset;
3098 else
3099 new->charset = sstrdup(DCCHARSET);
d3372da9 3100 if(hubsetnick(fn, fn->mynick))
3101 fnetsetnick(fn, L"DoldaConnectUser-IN");
3102 /* IN as in Invalid Nick */
3103 return(new);
3104}
3105
3106static struct dcpeer *newdcpeer(struct socket *sk)
3107{
3108 struct dcpeer *new;
3109
3110 new = smalloc(sizeof(*new));
3111 memset(new, 0, sizeof(*new));
3112 new->transfer = NULL;
3113 getsock(sk);
3114 new->sk = sk;
1c4b02cd 3115 if(confgetint("dc", "dcppemu"))
3116 new->dcppemu = 1;
d3372da9 3117 new->next = peers;
3118 new->prev = NULL;
3119 if(peers != NULL)
3120 peers->prev = new;
3121 peers = new;
3122 numdcpeers++;
3123 return(new);
3124}
3125
3126static void freedcpeer(struct dcpeer *peer)
3127{
3128 int i;
3129 struct qcommand *qcmd;
3130
d3372da9 3131 if(peers == peer)
3132 peers = peer->next;
3133 if(peer->next != NULL)
3134 peer->next->prev = peer->prev;
3135 if(peer->prev != NULL)
3136 peer->prev->next = peer->next;
1ce5968e
FT		 3137 if(peer->trpipe != NULL) {
3138 closesock(peer->trpipe);
1ff9e8ea 3139 quitsock(peer->trpipe);
1ce5968e 3140 }
d3372da9 3141 if(peer->transfer != NULL)
3142 {
1ff9e8ea 3143 CBUNREG(peer->transfer, trans_filterout, peer);
d3372da9 3144 if(peer->transfer->dir == TRNSD_UP)
3145 peer->transfer->close = 1;
3146 if(peer->transfer->dir == TRNSD_DOWN)
3147 resettransfer(peer->transfer);
d3372da9 3148 }
1e9d82b1 3149 if(peer->timeout != NULL)
3150 canceltimer(peer->timeout);
cab0b442 3151 if(peer->sk->data == peer)
3152 peer->sk->data = NULL;
3153 peer->sk->readcb = NULL;
3154 peer->sk->writecb = NULL;
3155 peer->sk->errcb = NULL;
d3372da9 3156 putsock(peer->sk);
3157 endcompress(peer);
3158 if(peer->supports != NULL)
3159 {
3160 for(i = 0; peer->supports[i] != NULL; i++)
3161 free(peer->supports[i]);
3162 free(peer->supports);
3163 }
d3372da9 3164 if(peer->inbuf != NULL)
3165 free(peer->inbuf);
3166 if(peer->key != NULL)
3167 free(peer->key);
3168 if(peer->wcsname != NULL)
3169 free(peer->wcsname);
3170 if(peer->nativename != NULL)
3171 free(peer->nativename);
1d85f24b 3172 if(peer->charset != NULL)
3173 free(peer->charset);
d3372da9 3174 if(peer->fn != NULL)
3175 putfnetnode(peer->fn);
3176 while((qcmd = ulqcmd(&peer->queue)) != NULL)
3177 freeqcmd(qcmd);
3178 free(peer);
3179 numdcpeers--;
3180}
3181
ffa81d5f 3182static void hubconnect(struct fnetnode *fn, struct socket *sk)
d3372da9 3183{
ffa81d5f
FT		 3184 struct dchub *hub;
3185
3186 sk->readcb = (void (*)(struct socket *, void *))hubread;
3187 sk->errcb = (void (*)(struct socket *, int, void *))huberr;
3188 fn->data = hub = newdchub(fn);
3189 sk->data = fn;
3190 getsock(hub->sk = sk);
d3372da9 3191 return;
3192}
3193
3194static void hubdestroy(struct fnetnode *fn)
3195{
08b74f8c 3196 int i;
d3372da9 3197 struct dchub *hub;
3198 struct qcommand *qcmd;
3199
3200 hub = (struct dchub *)fn->data;
ffa81d5f 3201 putsock(hub->sk);
d3372da9 3202 while((qcmd = ulqcmd(&hub->queue)) != NULL)
3203 freeqcmd(qcmd);
08b74f8c
FT		 3204 if(hub->supports != NULL)
3205 {
3206 for(i = 0; hub->supports[i] != NULL; i++)
3207 free(hub->supports[i]);
3208 free(hub->supports);
3209 }
d3372da9 3210 if(hub->nativename != NULL)
3211 free(hub->nativename);
3212 if(hub->nativenick != NULL)
3213 free(hub->nativenick);
1d85f24b 3214 if(hub->charset != NULL)
3215 free(hub->charset);
d3372da9 3216 if(hub->inbuf != NULL)
3217 free(hub->inbuf);
3218 free(hub);
3219}
3220
ffa81d5f
FT		 3221static void hubkill(struct fnetnode *fn)
3222{
3223 struct dchub *hub;
3224
3225 hub = (struct dchub *)fn->data;
d1ef0200 3226 closesock(hub->sk);
ffa81d5f
FT		 3227}
3228
d3372da9 3229static struct fnet dcnet =
3230{
3231 .name = L"dc",
3232 .connect = hubconnect,
3233 .destroy = hubdestroy,
ffa81d5f 3234 .kill = hubkill,
d3372da9 3235 .setnick = hubsetnick,
3236 .reqconn = hubreqconn,
3237 .sendchat = hubsendchat,
3238 .search = hubsearch,
d3372da9 3239};
3240
cab0b442 3241static void peerread(struct socket *sk, struct dcpeer *peer)
d3372da9 3242{
cab0b442 3243 char *newbuf, *p;
8cb2d75b 3244 size_t datalen, cnlen;
cab0b442 3245 struct command *cmd;
5ec60e42 3246
81286a22
FT		 3247 if(peer->state == PEER_CMD) {
3248 if((peer->queue.size > 50) || (peer->inbufdata > 65536))
3249 return;
3250 }
d3372da9 3251 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 3252 return;
d3372da9 3253 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
3254 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
3255 free(newbuf);
d3372da9 3256 peer->inbufdata += datalen;
9a2d6cb8 3257 if(peer->state == PEER_CMD)
d3372da9 3258 {
cab0b442 3259 p = peer->inbuf;
3260 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
3261 {
3262 *(p++) = 0;
cab0b442 3263 for(cmd = peercmds; cmd->handler != NULL; cmd++)
3264 {
8cb2d75b
FT		 3265 cnlen = strlen(cmd->name);
3266 if(!strncmp(peer->inbuf, cmd->name, cnlen) && ((peer->inbuf[cnlen] == ' ') || (peer->inbuf[cnlen] == 0)))
cab0b442 3267 break;
3268 }
8cb2d75b
FT		 3269 if((cmd->limit == 0) || (peer->queue.size < cmd->limit))
3270 newqcmd(&peer->queue, peer->inbuf);
cab0b442 3271 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
3272 if(cmd->stop)
3273 {
3274 peer->state = PEER_STOP;
3275 break;
3276 }
3277 }
9a2d6cb8 3278 } else if(peer->state == PEER_TTHL) {
3279 handletthl(peer);
d3372da9 3280 }
3281}
3282
cab0b442 3283static void peererror(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 3284{
3285 freedcpeer(peer);
3286}
3287
cab0b442 3288static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
d3372da9 3289{
3290 struct dcpeer *peer;
1c4b02cd 3291 struct dchub *hub;
d3372da9 3292
3293 if(err != 0)
3294 {
3295 putfnetnode(fn);
cab0b442 3296 return;
d3372da9 3297 }
1c4b02cd 3298 hub = fn->data;
d3372da9 3299 peer = newdcpeer(sk);
3300 peer->fn = fn;
3301 peer->accepted = 0;
1c4b02cd 3302 peer->dcppemu = hub->dcppemu;
cab0b442 3303 sk->readcb = (void (*)(struct socket *, void *))peerread;
3304 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3305 sk->data = peer;
d3372da9 3306 socksettos(sk, confgetint("fnet", "fnptos"));
1e9d82b1 3307 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 3308 sendmynick(peer);
3309 sendpeerlock(peer);
d3372da9 3310}
3311
d1ef0200 3312static void peeraccept(struct lport *lp, struct socket *newsk, void *data)
d3372da9 3313{
3314 struct dcpeer *peer;
3315
3316 peer = newdcpeer(newsk);
3317 peer->accepted = 1;
cab0b442 3318 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3319 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3320 newsk->data = peer;
d3372da9 3321 socksettos(newsk, confgetint("fnet", "fnptos"));
1e9d82b1 3322 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3323}
3324
3325static void updatehmlist(void)
3326{
3327 int i, lev, ic, ret;
3328 struct sharecache *node;
3329 char *buf, *buf2, numbuf[32];
3330 size_t bufsize, bufdata;
3331 int fd, ibuf;
50d8d5c1 3332 FILE *out;
d3372da9 3333
3334 bufdata = 0;
3335 buf = smalloc(bufsize = 65536);
3336 node = shareroot->child;
3337 lev = 0;
3338 while(1)
3339 {
3340 ic = 0;
1d85f24b 3341 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 3342 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3343 {
3344 for(i = 0; i < lev; i++)
3345 addtobuf(buf, 9);
3346 bufcat(buf, buf2, strlen(buf2));
3347 free(buf2);
3348 if(node->f.b.type == FILE_REG)
3349 {
3350 addtobuf(buf, '|');
dcf7a1a2 3351 sprintf(numbuf, "%ji", (intmax_t)node->size);
d3372da9 3352 bufcat(buf, numbuf, strlen(numbuf));
3353 }
3354 addtobuf(buf, 13);
3355 addtobuf(buf, 10);
3356 } else {
3357 ic = 1;
3358 }
3359 if((node->child != NULL) && !ic)
3360 {
3361 lev++;
3362 node = node->child;
3363 } else if(node->next != NULL) {
3364 node = node->next;
3365 } else {
3366 while(node->next == NULL)
3367 {
3368 lev--;
3369 node = node->parent;
3370 if(node == shareroot)
3371 break;
3372 }
3373 if(node == shareroot)
3374 break;
3375 node = node->next;
3376 }
3377 }
3378 if(hmlistname != NULL)
3379 {
3380 unlink(hmlistname);
3381 free(hmlistname);
3382 }
3383 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3384 if((fd = mkstemp(hmlistname)) < 0)
3385 {
3386 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3387 free(hmlistname);
3388 hmlistname = NULL;
3389 } else {
50d8d5c1 3390 out = fdopen(fd, "w");
d3372da9 3391 /*
3392 * I do not want to implement a good Huffman encoder, and it's not
3393 * like Huffman encoding actually yields any impressive results
3394 * for DC file lists anyway, so I'll just output a bogus
3395 * tree. Implement a good encoder if you want to.
3396 */
50d8d5c1
FT		 3397 fwrite("HE3\r\0", 1, 5, out);
3398 fwrite(&bufdata, 4, 1, out); /* XXX: Endian unsafe */
d3372da9 3399 ibuf = 256;
50d8d5c1 3400 fwrite(&ibuf, 2, 1, out);
d3372da9 3401 ibuf = 8;
3402 for(i = 0; i < 256; i++)
3403 {
50d8d5c1
FT		 3404 fwrite(&i, 1, 1, out);
3405 fwrite(&ibuf, 1, 1, out);
d3372da9 3406 }
3407 for(i = 0; i < 256; i++)
50d8d5c1 3408 fwrite(&i, 1, 1, out);
d3372da9 3409 for(buf2 = buf; bufdata > 0;)
3410 {
50d8d5c1 3411 if((ret = fwrite(buf2, 1, bufdata, out)) < 0)
d3372da9 3412 {
3413 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3414 break;
3415 }
3416 bufdata -= ret;
3417 buf2 += ret;
3418 }
50d8d5c1 3419 fclose(out);
d3372da9 3420 }
3421 free(buf);
3422}
3423
3424static struct xmlent
3425{
3426 wchar_t c;
3427 wchar_t *ent;
3428} entities[] = {
3429 {L'&', L"&amp;"},
3430 {L'\"', L"&#34;"},
3431/* {L'\'', L"&quot;"}, Emulate DC++ escaping by omitting this. */
3432 {L'\0', NULL}
3433};
3434
3435static wchar_t *escapexml(wchar_t *src)
3436{
3437 static wchar_t *buf = NULL;;
3438 int ret, c;
3439 wchar_t nbuf[32];
3440 size_t bufsize, bufdata;
3441 struct xmlent *ent;
3442
3443 if(buf != NULL)
3444 free(buf);
3445 buf = NULL;
3446 bufsize = bufdata = 0;
3447 for(; *src != L'\0'; src++)
3448 {
3449 c = wctob(*src);
3450 if((c > 0) && (c < 32))
3451 {
3452 bufcat(buf, L"&#", 2);
3453 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3454 bufcat(buf, nbuf, ret);
3455 addtobuf(buf, L';');
3456 } else {
3457 for(ent = entities; ent->ent != NULL; ent++)
3458 {
3459 if(ent->c == *src)
3460 {
3461 bufcat(buf, ent->ent, wcslen(ent->ent));
3462 break;
3463 }
3464 }
3465 if(ent->ent == NULL)
3466 addtobuf(buf, *src);
3467 }
3468 }
3469 addtobuf(buf, L'\0');
3470 return(buf);
3471}
3472
3473static void updatexmllist(void)
3474{
3475 int i, fd, lev;
3476 FILE *fs;
3477 char cidbuf[14], *namebuf;
3478 char *hashbuf;
3479 struct sharecache *node;
3480
3481 if(xmllistname != NULL)
3482 {
3483 unlink(xmllistname);
3484 free(xmllistname);
3485 }
3486 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3487 if((fd = mkstemp(xmllistname)) < 0)
3488 {
3489 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3490 free(xmllistname);
3491 xmllistname = NULL;
3492 return;
3493 }
3494 if((fs = fdopen(fd, "w")) == NULL)
3495 {
3496 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3497 unlink(xmllistname);
3498 free(xmllistname);
3499 xmllistname = NULL;
3500 close(fd);
3501 return;
3502 }
3503 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3504 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3505 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3506 cidbuf[i] = 0;
1c4b02cd 3507 if(confgetint("dc", "dcppemu"))
3508 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"DC++ 0.674\">\r\n", cidbuf);
3509 else
3510 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, "DoldaConnect" VERSION);
d3372da9 3511
3512 node = shareroot->child;
3513 lev = 0;
3514 while(1)
3515 {
3516 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3517 {
3518 for(i = 0; i < lev; i++)
3519 fputc('\t', fs);
3520 if(node->child != NULL)
3521 {
3522 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3523 node = node->child;
3524 lev++;
3525 continue;
3526 } else {
dcf7a1a2 3527 fprintf(fs, "<File Name=\"%s\" Size=\"%ji\"", namebuf, (intmax_t)node->size);
d3372da9 3528 if(node->f.b.hastth)
3529 {
3530 hashbuf = base32encode(node->hashtth, 24);
3531 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3532 free(hashbuf);
3533 }
3534 fprintf(fs, "/>\r\n");
3535 }
3536 while(node->next == NULL)
3537 {
3538 node = node->parent;
3539 if(node == shareroot)
3540 {
3541 break;
3542 } else {
3543 lev--;
3544 for(i = 0; i < lev; i++)
3545 fputc('\t', fs);
3546 fprintf(fs, "</Directory>\r\n");
3547 }
3548 }
3549 if(node == shareroot)
3550 break;
3551 node = node->next;
3552 }
3553 }
3554
1c4b02cd 3555 if(confgetint("dc", "dcppemu"))
3556 fprintf(fs, "</FileListing>");
3557 else
3558 fprintf(fs, "</FileListing>\r\n");
d3372da9 3559 fclose(fs);
3560}
3561
3562static void updatexmlbz2list(void)
3563{
3564 int err, fd;
3565 FILE *in;
3566 FILE *real;
3567 BZFILE *out;
3568 char buf[1024];
3569 size_t bufdata;
3570
3571 if(xmllistname == NULL)
3572 return;
3573 if((in = fopen(xmllistname, "r")) == NULL)
3574 {
3575 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3576 return;
3577 }
3578 if(xmlbz2listname != NULL)
3579 {
3580 unlink(xmlbz2listname);
3581 free(xmlbz2listname);
3582 }
3583 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3584 if((fd = mkstemp(xmlbz2listname)) < 0)
3585 {
3586 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3587 free(xmlbz2listname);
3588 xmlbz2listname = NULL;
3589 fclose(in);
3590 return;
3591 }
3592 if((real = fdopen(fd, "w")) == NULL)
3593 {
3594 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3595 close(fd);
3596 unlink(xmlbz2listname);
3597 free(xmlbz2listname);
3598 xmlbz2listname = NULL;
3599 fclose(in);
3600 return;
3601 }
3602 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3603 if(err != BZ_OK)
3604 {
3605 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3606 fclose(real);
3607 unlink(xmlbz2listname);
3608 free(xmlbz2listname);
3609 xmlbz2listname = NULL;
3610 fclose(in);
3611 return;
3612 }
3613 while(!feof(in))
3614 {
3615 bufdata = fread(buf, 1, sizeof(buf), in);
3616 BZ2_bzWrite(&err, out, buf, bufdata);
3617 }
3618 fclose(in);
3619 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3620 fclose(real);
3621}
3622
6305c428 3623static void listtimercb(int cancelled, void *uudata)
3624{
3625 listwritetimer = NULL;
3626 if(!cancelled)
3627 updatelists(1);
3628}
3629
3630static void updatelists(int now)
d3372da9 3631{
000ca725 3632 if((hmlistname == NULL) || (xmllistname == NULL) || (xmlbz2listname == NULL))
3633 now = 1;
6305c428 3634 if(!now)
3635 {
3636 if(listwritetimer == NULL)
ddb3658e 3637 listwritetimer = timercallback(ntime() + confgetint("cli", "hashwritedelay"), listtimercb, NULL);
6305c428 3638 return;
3639 }
3640 if(listwritetimer != NULL)
3641 canceltimer(listwritetimer);
d3372da9 3642 updatehmlist();
3643 updatexmllist();
3644 updatexmlbz2list();
6305c428 3645}
3646
3647static int shareupdate(unsigned long long uusharesize, void *data)
3648{
3649 updatelists(0);
d3372da9 3650 return(0);
3651}
3652
7395a37f
FT		 3653static char *quotestr(char *str)
3654{
3655 unsigned char *buf;
3656 unsigned char *p;
3657 size_t bufsize, bufdata;
3658 wchar_t *wbuf;
3659 static char *enc = NULL;
3660 size_t encsize, encdata;
3661
3662 buf = NULL;
3663 bufsize = bufdata = 0;
3664 for(p = (unsigned char *)str; *p; p++)
3665 {
3666 if(*p == '\b')
3667 bufcat(buf, "\\b", 2);
3668 else if(*p == '\t')
3669 bufcat(buf, "\\t", 2);
3670 else if(*p == '\n')
3671 bufcat(buf, "\\n", 2);
3672 else if(*p == '\r')
3673 bufcat(buf, "\\r", 2);
3674 else if(*p == '\\')
3675 bufcat(buf, "\\\\", 2);
3676 else if(*p >= 32)
3677 addtobuf(buf, *p);
3678 else
3679 bprintf(buf, "\\x%02x", *p);
3680 }
3681 addtobuf(buf, 0);
3682 if(enc != NULL)
3683 free(enc);
3684 enc = NULL;
3685 if((wbuf = icmbstowcs((char *)buf, DCCHARSET)) != NULL)
3686 {
3687 enc = icwcstombs(wbuf, NULL);
3688 free(wbuf);
3689 }
3690 if(enc == NULL)
3691 {
3692 encsize = encdata = 0;
3693 for(p = buf; *p; p++) {
3694 if(*p < 128)
3695 addtobuf(enc, *p);
3696 else
3697 bprintf(buf, "\\x%x", *p);
3698 }
3699 }
3700 free(buf);
3701 return(enc);
3702}
3703
c1928259 3704static void logunimpl(char *list, char *cmd, char *args)
7395a37f
FT		 3705{
3706 FILE *log;
3707
3708 if((log = fopen("/tmp/dc-unimpl", "a")) == NULL)
3709 {
3710 flog(LOG_WARNING, "could not open unimpl log: %s", strerror(errno));
3711 return;
3712 }
c1928259
FT		 3713 fputs(list, log);
3714 fputc('\t', log);
7395a37f
FT		 3715 fputs(quotestr(cmd), log);
3716 if(args != NULL)
3717 {
3718 fputc('\t', log);
3719 fputs(quotestr(args), log);
3720 }
3721 fputc('\n', log);
3722 fclose(log);
3723}
3724
d3372da9 3725static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3726{
3727 char *p;
3728 struct command *cmd;
3729
3730 if((p = strchr(qcmd->string, ' ')) != NULL)
3731 *(p++) = 0;
3732 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3733 {
3734 if(!strcmp(cmd->name, qcmd->string))
3735 break;
3736 }
3737 if(cmd->handler != NULL)
c1928259 3738 {
d3372da9 3739 cmd->handler(sk, data, qcmd->string, p);
c1928259
FT		 3740 } else if(confgetint("dc", "logunimpl")) {
3741 if(cmdlist == hubcmds)
3742 logunimpl("hub", qcmd->string, p);
3743 else if(cmdlist == peercmds)
3744 logunimpl("peer", qcmd->string, p);
3745 else
3746 logunimpl("other?!", qcmd->string, p);
3747 }
d3372da9 3748}
3749
3750static int run(void)
3751{
3752 struct fnetnode *fn, *nextfn;
3753 struct dchub *hub;
3754 struct dcpeer *peer, *nextpeer;
3755 struct qcommand *qcmd;
e0731d8c 3756 int ret, quota;
d3372da9 3757
3758 ret = 0;
e0731d8c 3759 quota = 20;
d3372da9 3760 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3761 {
3762 nextfn = fn->next;
3763 if(fn->fnet != &dcnet)
3764 continue;
3765 if(fn->data == NULL)
3766 continue;
3767 hub = (struct dchub *)fn->data;
e0731d8c 3768 while((quota > 0) && ((qcmd = ulqcmd(&hub->queue)) != NULL))
d3372da9 3769 {
3770 if(*qcmd->string == '$')
3771 {
ffa81d5f
FT		 3772 if((hub->sk != NULL) && (hub->sk->state == SOCK_EST))
3773 dispatchcommand(qcmd, hubcmds, hub->sk, fn);
d3372da9 3774 } else if(*qcmd->string != 0) {
ffa81d5f 3775 hubrecvchat(hub->sk, fn, NULL, qcmd->string);
d3372da9 3776 }
3777 freeqcmd(qcmd);
3778 ret = 1;
e0731d8c 3779 quota--;
d3372da9 3780 }
e0731d8c 3781 if(hub->queue.size < 1000)
81286a22 3782 hubread(hub->sk, fn);
e0731d8c
FT		 3783 if(quota < 1)
3784 break;
d3372da9 3785 }
e0731d8c 3786 quota = 20;
2bf4942d 3787 for(peer = peers; peer != NULL; peer = peer->next)
d3372da9 3788 {
2bf4942d 3789 while(!peer->close && (quota > 0) && ((qcmd = ulqcmd(&peer->queue)) != NULL))
d3372da9 3790 {
1e9d82b1 3791 if(peer->timeout != NULL)
3792 canceltimer(peer->timeout);
3793 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3794 if(*qcmd->string == '$')
3795 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3796 freeqcmd(qcmd);
3797 ret = 1;
e0731d8c 3798 quota--;
d3372da9 3799 }
e0731d8c 3800 if((peer->queue.size < 50) && (peer->inbufdata < 500000))
81286a22 3801 peerread(peer->sk, peer);
e0731d8c
FT		 3802 if(quota < 1)
3803 break;
d3372da9 3804 }
2bf4942d
FT		 3805 for(peer = peers; peer != NULL; peer = nextpeer)
3806 {
3807 nextpeer = peer->next;
3808 if(peer->close)
3809 freedcpeer(peer);
3810 }
d3372da9 3811 return(ret);
3812}
3813
3814static void preinit(int hup)
3815{
3816 if(hup)
3817 return;
3818 regfnet(&dcnet);
3819}
3820
3821static int updateudpport(struct configvar *var, void *uudata)
3822{
3823 struct sockaddr_in addr;
3824 struct socket *newsock;
3825
3826 memset(&addr, 0, sizeof(addr));
3827 addr.sin_family = AF_INET;
3828 addr.sin_port = htons(var->val.num);
3829 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3830 {
3831 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3832 return(0);
3833 }
cab0b442 3834 newsock->readcb = udpread;
d3372da9 3835 if(udpsock != NULL)
3836 putsock(udpsock);
3837 udpsock = newsock;
3838 return(0);
3839}
3840
3841static int updatetcpport(struct configvar *var, void *uudata)
3842{
3843 struct sockaddr_in addr;
d1ef0200 3844 struct lport *newsock;
d3372da9 3845
3846 memset(&addr, 0, sizeof(addr));
3847 addr.sin_family = AF_INET;
3848 addr.sin_port = htons(var->val.num);
3849 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3850 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3851 if(tcpsock != NULL)
d1ef0200 3852 closelport(tcpsock);
d3372da9 3853 tcpsock = newsock;
3854 return(0);
3855}
3856
3857static int init(int hup)
3858{
3859 struct sockaddr_in addr;
3860
3861 if(!hup)
3862 {
3863 GCBREG(sharechangecb, shareupdate, NULL);
3864 if(udpsock != NULL)
3865 putsock(udpsock);
3866 if(tcpsock != NULL)
d1ef0200 3867 closelport(tcpsock);
d3372da9 3868 addr.sin_family = AF_INET;
3869 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3870 addr.sin_port = htons(confgetint("dc", "udpport"));
3871 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3872 {
3873 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3874 return(1);
3875 }
cab0b442 3876 udpsock->readcb = udpread;
d3372da9 3877 addr.sin_port = htons(confgetint("dc", "tcpport"));
3878 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3879 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3880 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3881 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3882 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3883 }
3884 return(0);
3885}
3886
3887static void terminate(void)
3888{
3889 if(hmlistname != NULL)
3890 {
3891 unlink(hmlistname);
3892 free(hmlistname);
3893 }
3894 if(xmllistname != NULL)
3895 {
3896 unlink(xmllistname);
3897 free(xmllistname);
3898 }
3899 if(xmlbz2listname != NULL)
3900 {
3901 unlink(xmlbz2listname);
3902 free(xmlbz2listname);
3903 }
3904}
3905
3906static struct configvar myvars[] =
3907{
d9f89ef5 3908 /** Specifies the share description reported to other DC users. */
d3372da9 3909 {CONF_VAR_STRING, "desc", {.str = L""}},
d9f89ef5 3910 /** Specifies the speed reported to other DC users. Normal values
3911 * are 28.8Kbps, 33.6Kbps, 56Kbps, Satellite, ISDN, DSL, Cable,
3912 * LAN(T1) or LAN(T3)*/
d3372da9 3913 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
d9f89ef5 3914 /** The e-mail address to report to other DC users. */
d3372da9 3915 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
d9f89ef5 3916 /** Specifies a specific UDP port to use for DC search results. If
3917 * left unspecified, a port is allocated dynamically. Useful for
3918 * NAT routers (see also the net.visibleipv4 address for those
3919 * cases). */
d3372da9 3920 {CONF_VAR_INT, "udpport", {.num = 0}},
d9f89ef5 3921 /** Specifies a specific TCP port to use for DC peer
3922 * connections. If left unspecified, a port is allocated
3923 * dynamically. Useful for NAT routers (see also the
3924 * net.visibleipv4 address for those cases). */
d3372da9 3925 {CONF_VAR_INT, "tcpport", {.num = 0}},
d9f89ef5 3926 /** If set to true, doldacond will do its best to emulate DC++
3927 * (currently v0.674). This should be left off if at all possible,
3928 * since turning it on will violate the rules of most hubs and
3929 * thus give hub owners an actual reason to kick you if it is
3930 * detected. It might be needed for some of the more bone-headed
3931 * hub owners, though. Note that DC++ emulation can also be turned
3932 * on or off for individual hubs, overriding this setting. */
1c4b02cd 3933 {CONF_VAR_BOOL, "dcppemu", {.num = 0}},
7395a37f
FT		 3934 /** Use for debugging. If set to true, doldacond will log all
3935 * unknown commands it receives, and their arguments, to
3936 * /tmp/dc-unimpl. */
3937 {CONF_VAR_BOOL, "logunimpl", {.num = 0}},
4b544330
FT		 3938 /** If set to true, doldacond will hide its support for deflate
3939 * compression of transfers from other clients, so that they will
3940 * not request compressed uploads. Compressed transfers may
3941 * consume a non-trivial amount of CPU time on slower machines. */
3942 {CONF_VAR_BOOL, "hidedeflate", {.num = 0}},
d3372da9 3943 {CONF_VAR_END}
3944};
3945
3946static struct module me =
3947{
3948 .conf =
3949 {
3950 .vars = myvars
3951 },
3952 .preinit = preinit,
3953 .init = init,
3954 .run = run,
3955 .terminate = terminate,
3956 .name = "dc"
3957};
3958
3959MODULE(me)
Dolda Connect