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Fixed up the transfer system a great deal.
[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;
bd5d862e 1717 transwrite(peer->sk, peer);
d3372da9 1718}
1719
1720static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1721{
dcf7a1a2 1722 off_t size;
1fc81821 1723 struct transfer *transfer;
d3372da9 1724
1725 if(peer->transfer == NULL)
1726 {
2bf4942d 1727 peer->close = 1;
d3372da9 1728 return;
1729 }
dcf7a1a2 1730 size = strtoll(args, NULL, 10);
9a2d6cb8 1731 if(peer->transfer->size != size)
d3372da9 1732 {
d3372da9 1733 transfersetsize(peer->transfer, size);
1fc81821 1734 transfer = peer->transfer;
2bf4942d
FT		 1735 peer->close = 1;
1736 resettransfer(transfer);
1fc81821 1737 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 1738 return;
1739 }
9a2d6cb8 1740 startdl(peer);
1741 qstr(peer->sk, "$Send|");
d3372da9 1742}
1743
1744static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1745{
df873cd0 1746 if(peer->fetchingtthl)
1747 {
1748 peer->fetchingtthl = 0;
1749 peer->notthl = 1;
1750 requestfile(peer);
1751 return;
1752 }
d3372da9 1753 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1754 {
1755 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1756 resettransfer(peer->transfer);
1757 return;
1758 }
2bf4942d 1759 peer->close = 1;
d3372da9 1760}
1761
1762static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1763{
1764 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1765 {
1766 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1767 resettransfer(peer->transfer);
1768 return;
1769 }
2bf4942d 1770 peer->close = 1;
d3372da9 1771}
1772
1773static struct
1774{
1775 char *name;
1776 char **file;
1777 void (*func)(void);
1778} lists[] =
1779{
1780 {"MyList.DcLst", &hmlistname, updatehmlist},
1781 {"files.xml", &xmllistname, updatexmllist},
1782 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1783 {NULL, NULL}
1784};
1785
1786static int openfilelist(char *name)
1787{
1788 int i, fd;
1789 int errnobak;
1790
1791 for(i = 0; lists[i].name != NULL; i++)
1792 {
1793 if(!strcmp(name, lists[i].name))
1794 break;
1795 }
1796 errno = 0;
1797 if(lists[i].name == NULL)
1798 return(-1);
1799 fd = -1;
1800 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1801 lists[i].func();
1802 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1803 {
1804 errnobak = errno;
1805 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1806 errno = errnobak;
1807 return(-1);
1808 }
1809 return(fd);
1810}
1811
1812static struct sharecache *findbytth(char *tth32)
1813{
1814 char *buf;
1815 size_t buflen;
1816 struct sharecache *node;
1817
1818 if((buf = base32decode(tth32, &buflen)) == NULL)
1819 return(NULL);
1820 if(buflen != 24)
1821 {
1822 free(buf);
1823 return(NULL);
1824 }
1825 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1826 {
1827 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1828 break;
1829 }
1830 free(buf);
1831 return(node);
1832}
1833
1834static struct sharecache *resdcpath(char *path, char *charset, char sep)
1835{
1836 struct sharecache *node;
1837 char *p, *p2;
1838
1839 node = shareroot;
1840 p = path;
1841 while(p != NULL)
1842 {
1843 if((p2 = strchr(p, sep)) != NULL)
1844 *(p2++) = 0;
1845 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1846 return(NULL);
1847 p = p2;
1848 }
1849 return(node);
1850}
1851
1852static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1853{
dcf7a1a2 1854 off_t offset;
d3372da9 1855 char *p, *buf;
1856 wchar_t *buf2;
1857 struct sharecache *node;
1858 struct socket *lesk;
1859 int fd;
1860 struct stat sb;
1861
1862 if(peer->transfer == NULL)
1863 {
2bf4942d 1864 peer->close = 1;
d3372da9 1865 return;
1866 }
1867 if((p = strchr(args, '$')) == NULL)
1868 {
2bf4942d 1869 peer->close = 1;
d3372da9 1870 return;
1871 }
1872 *(p++) = 0;
dcf7a1a2 1873 if((offset = (strtoll(p, NULL, 10) - 1)) < 0)
d3372da9 1874 {
2bf4942d 1875 peer->close = 1;
d3372da9 1876 return;
1877 }
1878 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1879 {
1880 qstr(sk, "$Error Could not send file list|");
2bf4942d 1881 peer->close = 1;
d3372da9 1882 return;
1883 } else if(fd >= 0) {
040118de 1884 if((buf2 = nmdc2path(args, DCCHARSET)) != NULL) {
d3372da9 1885 transfersetpath(peer->transfer, buf2);
040118de
FT		 1886 free(buf2);
1887 }
f00d7432 1888 peer->transfer->flags.b.minislot = 1;
d3372da9 1889 }
1890 if(fd < 0)
1891 {
1d85f24b 1892 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 1893 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1894 {
1895 qstrf(sk, "$Error File not in share|");
2bf4942d 1896 peer->close = 1;
d3372da9 1897 return;
1898 }
1899 if((fd = opensharecache(node)) < 0)
1900 {
1901 qstrf(sk, "$Error %s|", strerror(errno));
2bf4942d 1902 peer->close = 1;
d3372da9 1903 return;
1904 }
1905 buf = getfspath(node);
1906 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1907 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1908 else
1909 transfersetpath(peer->transfer, buf2);
1910 free(buf);
1911 }
1912 if(fstat(fd, &sb) < 0)
1913 {
1914 close(fd);
1915 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1916 qstrf(sk, "$Error|");
2bf4942d 1917 peer->close = 1;
d3372da9 1918 return;
1919 }
f00d7432 1920 if(sb.st_size < 65536)
1921 peer->transfer->flags.b.minislot = 1;
1922 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 1923 close(fd);
f00d7432 1924 qstr(sk, "$MaxedOut|");
2bf4942d 1925 peer->close = 1;
f00d7432 1926 return;
1927 }
d3372da9 1928 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1929 {
1930 close(fd);
1931 qstrf(sk, "$Error Offset out of range|");
2bf4942d 1932 peer->close = 1;
d3372da9 1933 return;
1934 }
1935 lesk = wrapsock(fd);
1936 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1937 putsock(lesk);
dcf7a1a2 1938 qstrf(sk, "$FileLength %ji|", (intmax_t)peer->transfer->size);
d3372da9 1939}
1940
1941static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1942{
1943 if(peer->transfer == NULL)
1944 {
2bf4942d 1945 peer->close = 1;
d3372da9 1946 return;
1947 }
1948 if(peer->transfer->localend == NULL)
1949 {
2bf4942d 1950 peer->close = 1;
d3372da9 1951 return;
1952 }
1953 peer->ptclose = 1;
9a2d6cb8 1954 startul(peer);
d3372da9 1955}
1956
1957static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1958{
1959 int i;
1960 char *p, *p2;
1961 char **arr;
1962 size_t arrsize, arrdata;
1963
1964 if(peer->supports != NULL)
1965 {
1966 for(i = 0; peer->supports[i] != NULL; i++)
1967 free(peer->supports[i]);
1968 free(peer->supports);
1969 }
1970 arr = NULL;
1971 arrsize = arrdata = 0;
1972 p = args;
1973 do
1974 {
1975 if((p2 = strchr(p, ' ')) != NULL)
1976 *(p2++) = 0;
1977 if(*p == 0)
1978 continue;
1979 addtobuf(arr, sstrdup(p));
1980 } while((p = p2) != NULL);
1981 addtobuf(arr, NULL);
1982 peer->supports = arr;
d3372da9 1983}
1984
1985static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1986{
1987 int fd;
1988 char *p, *p2;
dcf7a1a2 1989 off_t start, numbytes;
d3372da9 1990 char *charset, *buf;
1991 wchar_t *buf2;
1992 struct sharecache *node;
1993 struct stat sb;
1994 struct socket *lesk;
1995
1996 if(peer->transfer == NULL)
1997 {
2bf4942d 1998 peer->close = 1;
d3372da9 1999 return;
2000 }
2001 p = args;
2002 if((p2 = strchr(p, ' ')) == NULL)
2003 {
2bf4942d 2004 peer->close = 1;
d3372da9 2005 return;
2006 }
2007 *(p2++) = 0;
dcf7a1a2 2008 start = strtoll(p, NULL, 10);
d3372da9 2009 p = p2;
2010 if((p2 = strchr(p, ' ')) == NULL)
2011 {
2bf4942d 2012 peer->close = 1;
d3372da9 2013 return;
2014 }
2015 *(p2++) = 0;
dcf7a1a2 2016 numbytes = strtoll(p, NULL, 10);
d3372da9 2017 p = p2;
2018 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
2019 charset = "UTF-8";
2020 else
1d85f24b 2021 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 2022 charset = DCCHARSET;
2023 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
2024 initcompress(peer, CPRS_ZLIB);
2025 if(((fd = openfilelist(p)) < 0) && (errno != 0))
2026 {
2027 qstr(sk, "$Error Could not send file list|");
2028 return;
2029 } else if(fd >= 0) {
040118de 2030 if((buf2 = nmdc2path(args, charset)) != NULL) {
d3372da9 2031 transfersetpath(peer->transfer, buf2);
040118de
FT		 2032 free(buf2);
2033 }
f00d7432 2034 peer->transfer->flags.b.minislot = 1;
d3372da9 2035 }
2036 if(fd < 0)
2037 {
d3372da9 2038 if((node = resdcpath(p, charset, '\\')) == NULL)
2039 {
2040 qstr(sk, "$Error File not in cache|");
2041 return;
2042 }
2043 if((fd = opensharecache(node)) < 0)
2044 {
2045 qstrf(sk, "$Error %s|", strerror(errno));
2046 return;
2047 }
2048 buf = getfspath(node);
2049 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
2050 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2051 else
2052 transfersetpath(peer->transfer, buf2);
2053 free(buf);
2054 }
2055 if(fstat(fd, &sb) < 0)
2056 {
2057 close(fd);
2058 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2059 qstr(sk, "$Error|");
2060 return;
2061 }
f00d7432 2062 if(sb.st_size < 65536)
2063 peer->transfer->flags.b.minislot = 1;
2064 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 2065 close(fd);
f00d7432 2066 qstr(sk, "$MaxedOut|");
2067 return;
2068 }
d3372da9 2069 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2070 {
2071 close(fd);
2072 qstr(sk, "$Error Offset out of range|");
2073 return;
2074 }
2075 if((numbytes < 0) || (start + numbytes > sb.st_size))
2076 numbytes = sb.st_size - start;
2077 lesk = wrapsock(fd);
2078 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2079 putsock(lesk);
dcf7a1a2 2080 qstrf(sk, "$Sending %ji|", (intmax_t)numbytes);
9a2d6cb8 2081 startul(peer);
d3372da9 2082}
2083
2084static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2085{
2086 int i;
2087 char **argv, *buf;
dcf7a1a2 2088 off_t start, numbytes;
d3372da9 2089 struct sharecache *node;
2090 struct stat sb;
2091 struct socket *lesk;
2092 wchar_t *wbuf;
2093 int fd;
2094
2095 if(peer->transfer == NULL)
2096 {
2bf4942d 2097 peer->close = 1;
d3372da9 2098 return;
2099 }
2100 if((argv = parseadc(args)) == NULL)
2101 {
2bf4942d 2102 peer->close = 1;
d3372da9 2103 return;
2104 }
2105 if(parrlen(argv) < 4)
2106 {
2bf4942d 2107 peer->close = 1;
d3372da9 2108 goto out;
2109 }
dcf7a1a2
FT		 2110 start = strtoll(argv[2], NULL, 10);
2111 numbytes = strtoll(argv[3], NULL, 10);
d3372da9 2112 node = NULL;
2113 fd = -1;
2114 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
2115 {
2116 qstr(sk, "$Error Could not send file list|");
2117 goto out;
2118 } else if(fd >= 0) {
040118de 2119 if((wbuf = adc2path(argv[1])) != NULL)
d3372da9 2120 transfersetpath(peer->transfer, wbuf);
f00d7432 2121 peer->transfer->flags.b.minislot = 1;
d3372da9 2122 }
2123 if(fd < 0)
2124 {
d3372da9 2125 if(!strncmp(argv[1], "TTH/", 4))
2126 {
2127 if((node = findbytth(argv[1] + 4)) == NULL)
2128 {
2129 qstr(sk, "$Error File not in cache|");
2130 goto out;
2131 }
2132 } else {
9a2d6cb8 2133 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
d3372da9 2134 {
2135 qstr(sk, "$Error File not in cache|");
2136 goto out;
2137 }
2138 }
2139 if((fd = opensharecache(node)) < 0)
2140 {
2141 qstrf(sk, "$Error %s|", strerror(errno));
2142 goto out;
2143 }
2144 buf = getfspath(node);
2145 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
2146 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2147 else
2148 transfersetpath(peer->transfer, wbuf);
2149 free(buf);
2150 }
2151 if(!strcmp(argv[0], "file"))
2152 {
2153 for(i = 4; argv[i] != NULL; i++)
2154 {
2155 if(!strcmp(argv[i], "ZL1"))
2156 initcompress(peer, CPRS_ZLIB);
2157 }
2158 if(fstat(fd, &sb) < 0)
2159 {
2160 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2161 qstr(sk, "$Error|");
2162 goto out;
2163 }
f00d7432 2164 if(sb.st_size < 65536)
2165 peer->transfer->flags.b.minislot = 1;
2166 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
2167 qstr(sk, "$MaxedOut|");
2168 goto out;
2169 }
d3372da9 2170 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2171 {
2172 qstr(sk, "$Error Offset out of range|");
2173 goto out;
2174 }
2175 if((numbytes < 0) || (start + numbytes > sb.st_size))
2176 numbytes = sb.st_size - start;
2177 lesk = wrapsock(fd);
2178 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2179 putsock(lesk);
2180 fd = -1;
2181 qstr(sk, "$ADCSND");
2182 sendadc(sk, "file");
2183 sendadc(sk, argv[1]);
dcf7a1a2
FT		 2184 sendadcf(sk, "%ji", (intmax_t)start);
2185 sendadcf(sk, "%ji", (intmax_t)numbytes);
d3372da9 2186 if(peer->compress == CPRS_ZLIB)
2187 sendadc(sk, "ZL1");
2188 qstr(sk, "|");
9a2d6cb8 2189 startul(peer);
d3372da9 2190 } else if(!strcmp(argv[0], "tthl")) {
2191 /*
2192 * XXX: Implement full TTHL support.
2193 *
2194 * In the meantime, this is better than nothing, since it at
2195 * least allows fetching of the TTH root if it isn't already
2196 * known.
2197 */
2198 if(node == NULL)
2199 {
2200 qstr(sk, "$Error no TTHL data for virtual files|");
2201 goto out;
2202 }
2203 qstr(sk, "$ADCSND");
2204 sendadc(sk, "tthl");
2205 sendadc(sk, argv[1]);
2206 sendadc(sk, "0");
2207 sendadc(sk, "24");
2208 qstr(sk, "|");
2209 sockqueue(sk, node->hashtth, 24);
2210 } else {
2211 qstr(sk, "$Error Namespace not implemented|");
2212 goto out;
2213 }
d3372da9 2214
2215 out:
2216 if(fd >= 0)
2217 close(fd);
2218 freeparr(argv);
2219}
2220
9a2d6cb8 2221static void handletthl(struct dcpeer *peer)
2222{
2223 char buf[24];
2224
2225 while(peer->inbufdata >= 24)
2226 {
2227 pushtigertree(&peer->tth, peer->inbuf);
2228 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
e52006fe 2229 peer->curread += 24;
9a2d6cb8 2230 }
e52006fe 2231 if(peer->curread >= peer->totalsize)
9a2d6cb8 2232 {
1e9d82b1 2233 if(peer->timeout == NULL)
2234 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 2235 peer->state = PEER_CMD;
2236 synctigertree(&peer->tth);
2237 restigertree(&peer->tth, buf);
2238 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2239 requestfile(peer);
2240 }
2241}
2242
2243static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2244{
2245 char **argv;
dcf7a1a2 2246 off_t start, numbytes;
9a2d6cb8 2247
2248 if(peer->transfer == NULL)
2249 {
2bf4942d 2250 peer->close = 1;
9a2d6cb8 2251 return;
2252 }
2253 if((argv = parseadc(args)) == NULL)
2254 {
2bf4942d 2255 peer->close = 1;
9a2d6cb8 2256 return;
2257 }
2258 if(parrlen(argv) < 4)
2259 {
2bf4942d 2260 peer->close = 1;
9a2d6cb8 2261 goto out;
2262 }
dcf7a1a2
FT		 2263 start = strtoll(argv[2], NULL, 10);
2264 numbytes = strtoll(argv[3], NULL, 10);
9a2d6cb8 2265 if(!strcmp(argv[0], "tthl"))
2266 {
2267 if((start != 0) || (numbytes % 24 != 0))
2268 {
2269 /* Weird. Bail out. */
2bf4942d 2270 peer->close = 1;
9a2d6cb8 2271 goto out;
2272 }
1e9d82b1 2273 if(peer->timeout != NULL)
2274 canceltimer(peer->timeout);
9a2d6cb8 2275 peer->state = PEER_TTHL;
2276 peer->totalsize = numbytes;
2277 peer->curread = 0;
df873cd0 2278 peer->fetchingtthl = 0;
9a2d6cb8 2279 inittigertree(&peer->tth);
2280 handletthl(peer);
2281 } else if(!strcmp(argv[0], "file")) {
2282 if(start != peer->transfer->curpos)
2283 {
2bf4942d 2284 peer->close = 1;
9a2d6cb8 2285 goto out;
2286 }
2287 if(start + numbytes != peer->transfer->size)
2288 {
2289 transfersetsize(peer->transfer, start + numbytes);
2bf4942d 2290 peer->close = 1;
9a2d6cb8 2291 goto out;
2292 }
2293 startdl(peer);
cab0b442 2294 if(peer->inbufdata > 0)
2295 {
2296 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2297 peer->inbufdata = 0;
cab0b442 2298 }
9a2d6cb8 2299 } else {
2300 /* We certainly didn't request this...*/
2bf4942d 2301 peer->close = 1;
9a2d6cb8 2302 goto out;
2303 }
2304
2305 out:
2306 freeparr(argv);
2307}
2308
2309static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2310{
dcf7a1a2 2311 off_t numbytes;
9a2d6cb8 2312
2313 if(peer->transfer == NULL)
2314 {
2bf4942d 2315 peer->close = 1;
9a2d6cb8 2316 return;
2317 }
dcf7a1a2 2318 numbytes = strtoll(args, NULL, 10);
9a2d6cb8 2319 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2320 {
2321 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2bf4942d 2322 peer->close = 1;
9a2d6cb8 2323 return;
2324 }
2325 startdl(peer);
cab0b442 2326 if(peer->inbufdata > 0)
2327 {
2328 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2329 peer->inbufdata = 0;
cab0b442 2330 }
9a2d6cb8 2331}
2332
d3372da9 2333/*
2334Hub skeleton:
2335static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2336{
2337 struct dchub *hub;
2338
2339 hub = fn->data;
2340 hubhandleaction(sk, fn, cmd, args);
2341}
2342
2343Peer skeleton:
2344static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2345{
d3372da9 2346}
2347
2348*/
2349
2350static int hubreqconn(struct fnetpeer *peer)
2351{
2352 struct dchub *hub;
2353 char *mbsnick;
2354
2355 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2356 {
2357 errno = EINVAL;
2358 return(1);
2359 }
2360 if((hub = peer->fn->data) == NULL)
2361 {
2362 errno = EFAULT;
2363 return(1);
2364 }
1d85f24b 2365 if((mbsnick = icwcstombs(peer->id, hub->charset)) == NULL)
d3372da9 2366 return(1); /* Shouldn't happen, of course, but who knows... */
2367 if(tcpsock != NULL)
2368 {
ffa81d5f 2369 sendctm(hub->sk, mbsnick);
d3372da9 2370 expectpeer(mbsnick, peer->fn);
2371 } else {
ffa81d5f 2372 qstrf(hub->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
d3372da9 2373 }
2374 free(mbsnick);
2375 return(0);
2376}
2377
2378static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2379{
2380 struct dchub *hub;
2381 char *mbsstring, *mbsto;
2382
2383 hub = fn->data;
1d85f24b 2384 if((mbsto = icwcstombs(to, hub->charset)) == NULL)
d3372da9 2385 {
2386 errno = EILSEQ;
2387 return(1);
2388 }
1d85f24b 2389 if((mbsstring = icwcstombs(string, hub->charset)) == NULL)
d3372da9 2390 {
2391 errno = EILSEQ;
2392 return(1);
2393 }
2394 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2395 {
2396 free(mbsto);
2397 free(mbsstring);
2398 errno = ESRCH;
2399 return(1);
2400 }
2401 if(strchr(mbsstring, '|') != NULL)
2402 {
2403 free(mbsto);
2404 free(mbsstring);
2405 errno = EILSEQ;
2406 return(1);
2407 }
2408 if(public)
2409 {
2410 if(*to == L'\0')
2411 {
ffa81d5f 2412 qstrf(hub->sk, "<%s> %s|", hub->nativenick, mbsstring);
d3372da9 2413 } else {
ffa81d5f 2414 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2415 }
2416 } else {
ffa81d5f 2417 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2418 }
2419 free(mbsto);
2420 free(mbsstring);
2421 return(0);
2422}
2423
2424static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2425{
2426 int minl, maxl, minr, maxr, retmin, retmax;
2427
2428 switch(sexpr->op)
2429 {
2430 case SOP_AND:
2431 findsizelimit(sexpr->l, &minl, &maxl);
2432 findsizelimit(sexpr->r, &minr, &maxr);
2433 retmin = (minl > minr)?minl:minr;
2434 if((maxl != -1) && (maxr != -1))
2435 retmax = (maxl < maxr)?maxl:maxr;
2436 else if(maxl != -1)
2437 retmax = maxl;
2438 else if(maxr != -1)
2439 retmax = maxr;
2440 else
2441 retmax = -1;
2442 break;
2443 case SOP_OR:
2444 findsizelimit(sexpr->l, &minl, &maxl);
2445 findsizelimit(sexpr->r, &minr, &maxr);
2446 retmin = (minl < minr)?minl:minr;
2447 if((maxl == -1) || (maxr == -1))
2448 retmax = -1;
2449 else
2450 retmax = (maxl > maxr)?maxl:maxr;
2451 break;
2452 case SOP_NOT:
2453 findsizelimit(sexpr->l, &minl, &maxl);
2454 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2455 {
2456 retmin = 0;
2457 retmax = -1;
2458 } else if((minl == 0) && (maxl != -1)) {
2459 retmin = maxl + 1;
2460 retmax = -1;
2461 } else if((minl != 0) && (maxl == -1)) {
2462 retmin = 0;
2463 retmax = minl - 1;
2464 } else { /* This would yield two seperate intervals, which DC cannot handle */
2465 retmin = 0;
2466 retmax = -1;
2467 }
2468 case SOP_SIZELT:
2469 retmin = 0;
2470 retmax = sexpr->d.n - 1;
2471 break;
2472 case SOP_SIZEEQ:
2473 retmin = sexpr->d.n;
2474 retmax = sexpr->d.n;
2475 break;
2476 case SOP_SIZEGT:
2477 retmin = sexpr->d.n + 1;
2478 retmax = -1;
2479 break;
2480 default:
2481 retmin = 0;
2482 retmax = -1;
2483 break;
2484 }
2485 if(min != NULL)
2486 *min = retmin;
2487 if(max != NULL)
2488 *max = retmax;
2489}
2490
9d8cf743 2491static struct hash *findsehash(struct sexpr *sexpr)
2492{
2493 struct hash *h1, *h2;
2494
2495 switch(sexpr->op)
2496 {
2497 case SOP_AND:
2498 if((h1 = findsehash(sexpr->l)) != NULL)
2499 return(h1);
2500 if((h1 = findsehash(sexpr->r)) != NULL)
2501 return(h1);
2502 break;
2503 case SOP_OR:
175c86de 2504 if((h1 = findsehash(sexpr->l)) == NULL)
2505 return(NULL);
2506 if((h2 = findsehash(sexpr->r)) == NULL)
2507 return(NULL);
9d8cf743 2508 if(hashcmp(h1, h2))
2509 return(h1);
2510 break;
2511 case SOP_HASHIS:
2512 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2513 return(sexpr->d.hash);
2514 default:
2515 break;
2516 }
2517 return(NULL);
2518}
2519
d3372da9 2520static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2521{
2522 struct dchub *hub;
2523 struct wcslist *list, *cur;
2524 char *sstr, *buf, *p;
2525 size_t sstrsize, sstrdata;
2526 struct sockaddr *name;
2527 socklen_t namelen;
2528 int minsize, maxsize;
9d8cf743 2529 struct hash *hash;
d3372da9 2530
2531 hub = fn->data;
ffa81d5f 2532 if((fn->state != FNN_EST) || (hub->sk == NULL) || (hub->sk->state != SOCK_EST))
d3372da9 2533 return(1);
2534 list = findsexprstrs(srch->sexpr);
2535 findsizelimit(srch->sexpr, &minsize, &maxsize);
9d8cf743 2536 hash = findsehash(srch->sexpr);
d3372da9 2537 if((minsize != 0) && (maxsize != -1))
2538 {
2539 /* Choose either minsize or maxsize by trying to determine
2540 * which choice will be most restrictive. The result can be
2541 * approximative at best anyway, so don't try too hard... */
2542 if((50000000 - maxsize) > (minsize - 50000000))
2543 minsize = 0;
2544 else
2545 maxsize = -1;
2546 }
d3372da9 2547 sstr = NULL;
2548 sstrsize = sstrdata = 0;
9d8cf743 2549 if((hash != NULL) && (hash->len == 24))
d3372da9 2550 {
9d8cf743 2551 /* Prioritize hash searches above all else */
2552 bufcat(sstr, "F?T?0?9?TTH:", 12);
2553 buf = base32encode(hash->buf, hash->len);
2554
2555 bufcat(sstr, buf, 39);
2556 free(buf);
2557 } else {
2558 if(minsize != 0)
d3372da9 2559 {
9d8cf743 2560 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2561 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
9d8cf743 2562 } else if(maxsize != -1) {
2563 sizebuf2(sstr, sstrdata + 32, 1);
fe42d689 2564 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
9d8cf743 2565 } else {
2566 bufcat(sstr, "F?F?0?1?", 8);
2567 }
2568 if(list != NULL)
2569 {
2570 for(cur = list; cur != NULL; cur = cur->next)
d3372da9 2571 {
1d85f24b 2572 /* Use DCCHARSET in $Get paths until further researched... */
9d8cf743 2573 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2574 {
2575 /* Can't find anything anyway if the search expression
2576 * requires characters outside DC's charset. There's
2577 * nothing technically wrong with the search itself,
2578 * however, so return success. This should be
2579 * considered as an optimization. */
2580 freesl(&list);
2581 if(sstr != NULL)
2582 free(sstr);
2583 return(0);
2584 }
2585 if(cur != list)
2586 addtobuf(sstr, '$');
2587 /*
2588 * It probably doesn't hurt if buf contains any extra
2589 * dollar signs - it will just result in extra search
2590 * terms, and the extraneous results will be filtered by
2591 * the search layer anyway. It hurts if it contains any
2592 * pipes, though, so let's sell them for money.
2593 */
2594 for(p = buf; *p; p++)
2595 {
2596 if(*p == '|')
2597 *p = '$';
2598 }
2599 bufcat(sstr, buf, strlen(buf));
2600 free(buf);
d3372da9 2601 }
9d8cf743 2602 } else {
2603 /* Will match all files... :-/ */
2604 addtobuf(sstr, '.');
d3372da9 2605 }
d3372da9 2606 }
2607 addtobuf(sstr, 0);
2608 if(tcpsock != NULL)
2609 {
ffa81d5f 2610 if(sockgetremotename2(udpsock, hub->sk, &name, &namelen) < 0)
d3372da9 2611 {
2612 flog(LOG_WARNING, "cannot get address of UDP socket");
2613 } else {
ffa81d5f 2614 qstrf(hub->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
d3372da9 2615 free(name);
2616 }
2617 } else {
ffa81d5f 2618 qstrf(hub->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
d3372da9 2619 }
2620 free(sstr);
2621 freesl(&list);
2622 fn->lastsrch = time(NULL);
2623 return(0);
2624}
2625
2626#undef skipcmd
2627#undef qstr
2628#undef qstrf
2629
2630#define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
8b930085 2631static struct command hubcmds[] =
d3372da9 2632{
2633 {"$Lock", cc(cmd_lock)},
2634 {"$HubName", cc(cmd_hubname)},
2635 {"$Hello", cc(cmd_hello)},
2636 {"$Quit", cc(cmd_quit)},
2637 {"$NickList", cc(cmd_nicklist)},
2638 {"$OpList", cc(cmd_oplist)},
2639 {"$MyINFO", cc(cmd_myinfo)},
2640 {"$ForceMove", cc(cmd_forcemove)},
8cb2d75b
FT		 2641 {"$Search", cc(cmd_search), .limit = 100},
2642 {"$MultiSearch", cc(cmd_search), .limit = 50},
2643 {"$ConnectToMe", cc(cmd_connecttome), .limit = 200},
2644 {"$RevConnectToMe", cc(cmd_revconnecttome), .limit = 500},
d3372da9 2645 {"$GetNetInfo", cc(cmd_getnetinfo)},
2646 {"$To:", cc(cmd_to)},
2647 {"$SR", cc(cmd_sr)},
2648 {"$UserCommand", cc(cmd_usercommand)},
48509089 2649 {"$GetPass", cc(cmd_getpass)},
c9b3ad74 2650 {"$LogedIn", cc(cmd_logedin)}, /* sic */
08b74f8c 2651 {"$Supports", cc(cmd_hubsupports)},
d3372da9 2652 {NULL, NULL}
2653};
2654
8b930085 2655static struct command peercmds[] =
d3372da9 2656{
2657 {"$MyNick", cc(cmd_mynick)},
2658 {"$Lock", cc(cmd_peerlock)},
2659 {"$Direction", cc(cmd_direction)},
2660 {"$Key", cc(cmd_key)},
2661 {"$FileLength", cc(cmd_filelength)},
2662 {"$Error", cc(cmd_error)},
2663 {"$MaxedOut", cc(cmd_maxedout)},
2664 {"$Get", cc(cmd_get)},
2665 {"$Send", cc(cmd_send)},
2666 {"$Supports", cc(cmd_supports)},
2667 {"$GetBlock", cc(cmd_getblock)},
2668 {"$UGetBlock", cc(cmd_getblock)},
2669 {"$GetZBlock", cc(cmd_getblock)},
2670 {"$UGetZBlock", cc(cmd_getblock)},
2671 {"$ADCGET", cc(cmd_adcget)},
8cb2d75b
FT		 2672 {"$ADCSND", cc(cmd_adcsnd), .stop = 1},
2673 {"$Sending", cc(cmd_sending), .stop = 1},
d3372da9 2674 {NULL, NULL}
2675};
2676#undef cc
2677
d3372da9 2678static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2679{
2680 int ret;
2681 void *buf;
c7185019 2682 unsigned char outbuf[1024];
d3372da9 2683 z_stream *cstr;
2684 size_t bufsize;
2685
2686 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2687 {
81286a22 2688 if(sockqueueleft(peer->sk) > 0)
d3372da9 2689 {
1ff9e8ea 2690 if((buf = sockgetinbuf(peer->trpipe, &bufsize)) != NULL)
d3372da9 2691 {
bd5d862e
FT		 2692 if(peer->compress == CPRS_NONE)
2693 {
2694 sockqueue(peer->sk, buf, bufsize);
2695 } else if(peer->compress == CPRS_ZLIB) {
2696 cstr = peer->cprsdata;
2697 cstr->next_in = buf;
2698 cstr->avail_in = bufsize;
2699 while(cstr->avail_in > 0)
d3372da9 2700 {
bd5d862e
FT		 2701 cstr->next_out = outbuf;
2702 cstr->avail_out = sizeof(outbuf);
2703 if((ret = deflate(cstr, 0)) != Z_OK)
d3372da9 2704 {
bd5d862e
FT		 2705 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2706 freedcpeer(peer);
2707 return;
d3372da9 2708 }
bd5d862e 2709 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
d3372da9 2710 }
2711 }
2712 free(buf);
2713 }
2714 if(peer->state == PEER_SYNC)
2715 {
2716 if(peer->compress == CPRS_ZLIB)
2717 {
2718 cstr = peer->cprsdata;
2719 cstr->next_in = NULL;
2720 cstr->avail_in = 0;
2721 do
2722 {
2723 cstr->next_out = outbuf;
2724 cstr->avail_out = sizeof(outbuf);
2725 ret = deflate(cstr, Z_FINISH);
2726 if((ret != Z_OK) && (ret != Z_STREAM_END))
2727 {
2728 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2729 freedcpeer(peer);
2730 return;
2731 }
2732 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2733 } while(ret != Z_STREAM_END);
2734 }
2735 if(peer->ptclose)
2736 {
2737 freedcpeer(peer);
2738 } else {
1e9d82b1 2739 if(peer->timeout == NULL)
2740 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 2741 peer->state = PEER_CMD;
2742 endcompress(peer);
2743 transfersetstate(transfer, TRNS_HS);
2744 socksettos(peer->sk, confgetint("fnet", "fnptos"));
bfc261fe 2745 transfer->flags.b.minislot = 0;
cab0b442 2746 peer->sk->writecb = NULL;
d3372da9 2747 }
2748 }
2749 }
2750 }
2751}
2752
cab0b442 2753static void transread(struct socket *sk, struct dcpeer *peer)
d3372da9 2754{
cab0b442 2755 void *buf;
2756 size_t bufsize;
d3372da9 2757
1ff9e8ea 2758 if(sockqueueleft(peer->trpipe) < 0)
81286a22 2759 return;
bd5d862e 2760 if((buf = sockgetinbuf(sk, &bufsize)) != NULL)
d3372da9 2761 {
bd5d862e
FT		 2762 if(peer->transfer == NULL)
2763 {
2764 free(buf);
2765 freedcpeer(peer);
2766 return;
2767 }
2768 sockqueue(peer->trpipe, buf, bufsize);
cab0b442 2769 free(buf);
d3372da9 2770 }
d3372da9 2771 if(peer->transfer->curpos >= peer->transfer->size)
2772 {
1ff9e8ea
FT		 2773 closesock(peer->trpipe);
2774 quitsock(peer->trpipe);
bd5d862e
FT		 2775 peer->trpipe = NULL;
2776 peer->transfer = NULL;
1ff9e8ea 2777 peer->close = 1;
d3372da9 2778 return;
2779 }
81286a22
FT		 2780}
2781
cab0b442 2782static void transerr(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 2783{
2784 struct transfer *transfer;
2785
2786 if((transfer = peer->transfer) == NULL)
cab0b442 2787 {
2788 freedcpeer(peer);
d3372da9 2789 return;
cab0b442 2790 }
1ff9e8ea
FT		 2791 closesock(peer->trpipe);
2792 quitsock(peer->trpipe);
bd5d862e
FT		 2793 peer->trpipe = NULL;
2794 peer->transfer = NULL;
1ff9e8ea 2795 peer->close = 1;
d3372da9 2796}
2797
cab0b442 2798static void transwrite(struct socket *sk, struct dcpeer *peer)
d3372da9 2799{
2800 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
cab0b442 2801 return;
d3372da9 2802 if(peer->transfer == NULL)
2803 {
2804 freedcpeer(peer);
cab0b442 2805 return;
d3372da9 2806 }
2807 dctransgotdata(peer->transfer, peer);
2808}
2809
bd5d862e
FT		 2810static void trpiperead(struct socket *sk, struct dcpeer *peer)
2811{
2812 dctransgotdata(peer->transfer, peer);
2813}
2814
2815static void trpipewrite(struct socket *sk, struct dcpeer *peer)
2816{
2817 transread(peer->sk, peer);
2818}
2819
2820static void trpipeerr(struct socket *sk, int errno, struct dcpeer *peer)
2821{
2822 peer->state = PEER_SYNC;
2823 dctransgotdata(peer->transfer, peer);
2824 CBUNREG(peer->transfer, trans_filterout, peer);
2825}
2826
2827static struct socket *mktrpipe(struct dcpeer *peer)
2828{
2829 struct socket *sk;
2830
2831 sk = netsockpipe();
2832 socksetdebug(sk, 2, "trpipe");
2833 sk->data = peer;
2834 sk->readcb = (void (*)(struct socket *, void *))trpiperead;
2835 sk->writecb = (void (*)(struct socket *, void *))trpipewrite;
2836 sk->errcb = (void (*)(struct socket *, int, void *))trpipeerr;
2837 return(sk);
2838}
2839
cab0b442 2840static void udpread(struct socket *sk, void *data)
d3372da9 2841{
d86b7a9f 2842 char *buf, *p, *p2, *hashbuf;
2843 size_t buflen, hashlen;
d3372da9 2844 char *nick, *filename, *hubname;
99a28d47 2845 struct sockaddr_in hubaddr;
d1ef0200 2846 struct sockaddr *addrbuf;
dcf7a1a2
FT		 2847 off_t size;
2848 int slots;
d3372da9 2849 struct fnetnode *fn, *myfn;
2850 struct dchub *hub;
2851 struct srchres *sr;
2852 wchar_t *wnick, *wfile;
d86b7a9f 2853 struct hash *hash;
d3372da9 2854
2855 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
cab0b442 2856 return;
d3372da9 2857 buf = srealloc(buf, buflen + 1);
2858 buf[buflen] = 0;
2859 if(!strncmp(buf, "$SR ", 4))
2860 {
2861 p = buf + 4;
2862 nick = p;
2863 if((p2 = strchr(p, ' ')) == NULL)
2864 {
2865 free(buf);
cab0b442 2866 return;
d3372da9 2867 }
2868 *p2 = 0;
2869 p = p2 + 1;
2870 filename = p;
2871 if((p2 = strchr(p, 5)) == NULL)
2872 {
2873 free(buf);
cab0b442 2874 return;
d3372da9 2875 }
2876 *p2 = 0;
2877 p = p2 + 1;
2878 if((p2 = strchr(p, ' ')) == NULL)
2879 {
2880 free(buf);
cab0b442 2881 return;
d3372da9 2882 }
2883 *p2 = 0;
dcf7a1a2 2884 size = strtoll(p, NULL, 10);
d3372da9 2885 p = p2 + 1;
2886 if((p2 = strchr(p, '/')) == NULL)
2887 {
2888 free(buf);
cab0b442 2889 return;
d3372da9 2890 }
2891 *p2 = 0;
2892 slots = atoi(p);
2893 p = p2 + 1;
2894 if((p2 = strchr(p, 5)) == NULL)
2895 {
2896 free(buf);
cab0b442 2897 return;
d3372da9 2898 }
2899 p = p2 + 1;
2900 hubname = p;
2901 if((p2 = strstr(p, " (")) == NULL)
2902 {
2903 free(buf);
cab0b442 2904 return;
d3372da9 2905 }
2906 *p2 = 0;
99a28d47 2907 p = p2 + 2;
2908 if((p2 = strchr(p, ':')) == NULL)
2909 {
2910 free(buf);
cab0b442 2911 return;
99a28d47 2912 }
870bf4ad 2913 *(p2++) = 0;
99a28d47 2914 hubaddr.sin_family = AF_INET;
2915 if(!inet_aton(p, &hubaddr.sin_addr))
2916 {
2917 free(buf);
cab0b442 2918 return;
99a28d47 2919 }
2920 p = p2;
2921 if((p2 = strchr(p, ')')) == NULL)
2922 {
2923 free(buf);
cab0b442 2924 return;
99a28d47 2925 }
2926 *p2 = 0;
2927 hubaddr.sin_port = htons(atoi(p));
1d85f24b 2928 /* Use DCCHARSET in $Get paths until further researched... */
040118de 2929 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 2930 {
d3372da9 2931 free(buf);
cab0b442 2932 return;
d3372da9 2933 }
2934 myfn = NULL;
d86b7a9f 2935 hash = NULL;
2936 if(!strncmp(hubname, "TTH:", 4))
d3372da9 2937 {
d86b7a9f 2938 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2939 {
2940 if(hashlen == 24)
2941 hash = newhash(L"TTH", 24, hashbuf);
2942 free(hashbuf);
2943 }
2944 } else {
2945 for(fn = fnetnodes; fn != NULL; fn = fn->next)
d3372da9 2946 {
d86b7a9f 2947 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
d3372da9 2948 {
d86b7a9f 2949 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
d3372da9 2950 {
d86b7a9f 2951 if(myfn == NULL)
2952 {
2953 myfn = fn;
2954 } else {
2955 myfn = NULL;
2956 break;
2957 }
d3372da9 2958 }
2959 }
2960 }
2961 }
99a28d47 2962 if(myfn == NULL)
2963 {
2964 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2965 {
d1ef0200 2966 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL) && !sockpeeraddr(hub->sk, &addrbuf, NULL))
99a28d47 2967 {
d1ef0200 2968 if((hub->sk != NULL) && addreq(addrbuf, (struct sockaddr *)&hubaddr))
ffa81d5f
FT		 2969 {
2970 myfn = fn;
42a86a24 2971 free(addrbuf);
ffa81d5f
FT		 2972 break;
2973 }
d1ef0200 2974 free(addrbuf);
99a28d47 2975 }
2976 }
2977 }
1d85f24b 2978 hub = NULL;
2979 if(myfn != NULL)
2980 hub = myfn->data;
2981 if((wnick = icmbstowcs(nick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
2982 {
2983 free(buf);
cab0b442 2984 return;
1d85f24b 2985 }
d3372da9 2986 sr = newsrchres(&dcnet, wfile, wnick);
2987 if(sr->peernick != NULL)
2988 free(sr->peernick);
2989 sr->peernick = swcsdup(wnick);
2990 sr->size = size;
2991 sr->slots = slots;
2992 free(wfile);
2993 free(wnick);
2994 if(myfn != NULL)
2995 getfnetnode(sr->fn = myfn);
d86b7a9f 2996 if(hash != NULL)
2997 sr->hash = hash;
d3372da9 2998 submitsrchres(sr);
2999 freesrchres(sr);
3000 }
3001 free(buf);
3002}
3003
3004static void hubread(struct socket *sk, struct fnetnode *fn)
3005{
3006 struct dchub *hub;
8cb2d75b 3007 struct command *cmd;
d3372da9 3008 char *newbuf;
8cb2d75b 3009 size_t datalen, cnlen;
c319fb93 3010 char *p, *p2;
d3372da9 3011
3012 hub = (struct dchub *)fn->data;
81286a22
FT		 3013 if(hub->queue.size > 1000)
3014 return;
d3372da9 3015 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
3016 return;
3017 if(hub->inbufdata > 500000) /* Discard possible malicious data */
3018 hub->inbufdata = 0;
3019 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
3020 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
3021 free(newbuf);
c319fb93 3022 p = hub->inbuf;
d3372da9 3023 hub->inbufdata += datalen;
28a3ef52 3024 while((p - hub->inbuf < hub->inbufdata) && ((p2 = memchr(p, '|', hub->inbufdata - (p - hub->inbuf))) != NULL))
d3372da9 3025 {
c319fb93 3026 *(p2++) = 0;
8cb2d75b
FT		 3027 for(cmd = hubcmds; cmd->handler != NULL; cmd++)
3028 {
3029 cnlen = strlen(cmd->name);
c319fb93 3030 if(!strncmp(p, cmd->name, cnlen) && ((p[cnlen] == ' ') || (p[cnlen] == 0)))
8cb2d75b
FT		 3031 break;
3032 }
3033 if((cmd->limit == 0) || (hub->queue.size < cmd->limit))
c319fb93 3034 newqcmd(&hub->queue, p);
c319fb93 3035 p = p2;
d3372da9 3036 }
c319fb93 3037 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
d3372da9 3038}
3039
3040static void huberr(struct socket *sk, int err, struct fnetnode *fn)
3041{
3042 killfnetnode(fn);
3043}
3044
3045static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
3046{
3047 struct dchub *hub;
3048 char *buf;
3049
3050 hub = fn->data;
1d85f24b 3051 if((buf = icwcstombs(newnick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
d3372da9 3052 return(1);
3053 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
3054 {
3055 free(buf);
3056 return(1);
3057 }
3058 if(hub == NULL) /* Not yet connected */
3059 {
3060 free(buf);
3061 return(0);
3062 }
3063 if(hub->nativenick != NULL)
3064 free(hub->nativenick);
3065 hub->nativenick = buf;
3066 return(0);
3067}
3068
3069static struct dchub *newdchub(struct fnetnode *fn)
3070{
3071 struct dchub *new;
1c4b02cd 3072 wchar_t *emu;
1d85f24b 3073 wchar_t *wcharset;
3074 char *charset;
d3372da9 3075
3076 new = smalloc(sizeof(*new));
3077 memset(new, 0, sizeof(*new));
3078 fn->data = new;
1c4b02cd 3079 if(confgetint("dc", "dcppemu"))
3080 new->dcppemu = 1;
3081 if((emu = wpfind(fn->args, L"dcppemu")) != NULL)
3082 {
3083 if(*emu == L'y')
3084 new->dcppemu = 1;
3085 if(*emu == L'n')
3086 new->dcppemu = 0;
3087 }
1d85f24b 3088 charset = NULL;
3089 if((wcharset = wpfind(fn->args, L"charset")) != NULL)
3090 {
3091 if((charset = icwcstombs(wcharset, "US-ASCII")) != NULL)
3092 {
3093 if(!havecharset(charset))
3094 {
3095 free(charset);
3096 charset = NULL;
3097 }
3098 }
3099 }
3100 if(charset != NULL)
3101 new->charset = charset;
3102 else
3103 new->charset = sstrdup(DCCHARSET);
d3372da9 3104 if(hubsetnick(fn, fn->mynick))
3105 fnetsetnick(fn, L"DoldaConnectUser-IN");
3106 /* IN as in Invalid Nick */
3107 return(new);
3108}
3109
3110static struct dcpeer *newdcpeer(struct socket *sk)
3111{
3112 struct dcpeer *new;
3113
3114 new = smalloc(sizeof(*new));
3115 memset(new, 0, sizeof(*new));
3116 new->transfer = NULL;
bd5d862e 3117 socksetdebug(sk, 2, "peersock");
d3372da9 3118 getsock(sk);
3119 new->sk = sk;
1c4b02cd 3120 if(confgetint("dc", "dcppemu"))
3121 new->dcppemu = 1;
d3372da9 3122 new->next = peers;
3123 new->prev = NULL;
3124 if(peers != NULL)
3125 peers->prev = new;
3126 peers = new;
3127 numdcpeers++;
3128 return(new);
3129}
3130
3131static void freedcpeer(struct dcpeer *peer)
3132{
3133 int i;
3134 struct qcommand *qcmd;
3135
d3372da9 3136 if(peers == peer)
3137 peers = peer->next;
3138 if(peer->next != NULL)
3139 peer->next->prev = peer->prev;
3140 if(peer->prev != NULL)
3141 peer->prev->next = peer->next;
1ce5968e
FT		 3142 if(peer->trpipe != NULL) {
3143 closesock(peer->trpipe);
1ff9e8ea 3144 quitsock(peer->trpipe);
1ce5968e 3145 }
d3372da9 3146 if(peer->transfer != NULL)
3147 {
1ff9e8ea 3148 CBUNREG(peer->transfer, trans_filterout, peer);
d3372da9 3149 if(peer->transfer->dir == TRNSD_UP)
3150 peer->transfer->close = 1;
3151 if(peer->transfer->dir == TRNSD_DOWN)
3152 resettransfer(peer->transfer);
d3372da9 3153 }
1e9d82b1 3154 if(peer->timeout != NULL)
3155 canceltimer(peer->timeout);
cab0b442 3156 if(peer->sk->data == peer)
3157 peer->sk->data = NULL;
3158 peer->sk->readcb = NULL;
3159 peer->sk->writecb = NULL;
3160 peer->sk->errcb = NULL;
d3372da9 3161 putsock(peer->sk);
3162 endcompress(peer);
3163 if(peer->supports != NULL)
3164 {
3165 for(i = 0; peer->supports[i] != NULL; i++)
3166 free(peer->supports[i]);
3167 free(peer->supports);
3168 }
d3372da9 3169 if(peer->inbuf != NULL)
3170 free(peer->inbuf);
3171 if(peer->key != NULL)
3172 free(peer->key);
3173 if(peer->wcsname != NULL)
3174 free(peer->wcsname);
3175 if(peer->nativename != NULL)
3176 free(peer->nativename);
1d85f24b 3177 if(peer->charset != NULL)
3178 free(peer->charset);
d3372da9 3179 if(peer->fn != NULL)
3180 putfnetnode(peer->fn);
3181 while((qcmd = ulqcmd(&peer->queue)) != NULL)
3182 freeqcmd(qcmd);
3183 free(peer);
3184 numdcpeers--;
3185}
3186
ffa81d5f 3187static void hubconnect(struct fnetnode *fn, struct socket *sk)
d3372da9 3188{
ffa81d5f
FT		 3189 struct dchub *hub;
3190
3191 sk->readcb = (void (*)(struct socket *, void *))hubread;
3192 sk->errcb = (void (*)(struct socket *, int, void *))huberr;
3193 fn->data = hub = newdchub(fn);
3194 sk->data = fn;
3195 getsock(hub->sk = sk);
d3372da9 3196 return;
3197}
3198
3199static void hubdestroy(struct fnetnode *fn)
3200{
08b74f8c 3201 int i;
d3372da9 3202 struct dchub *hub;
3203 struct qcommand *qcmd;
3204
3205 hub = (struct dchub *)fn->data;
ffa81d5f 3206 putsock(hub->sk);
d3372da9 3207 while((qcmd = ulqcmd(&hub->queue)) != NULL)
3208 freeqcmd(qcmd);
08b74f8c
FT		 3209 if(hub->supports != NULL)
3210 {
3211 for(i = 0; hub->supports[i] != NULL; i++)
3212 free(hub->supports[i]);
3213 free(hub->supports);
3214 }
d3372da9 3215 if(hub->nativename != NULL)
3216 free(hub->nativename);
3217 if(hub->nativenick != NULL)
3218 free(hub->nativenick);
1d85f24b 3219 if(hub->charset != NULL)
3220 free(hub->charset);
d3372da9 3221 if(hub->inbuf != NULL)
3222 free(hub->inbuf);
3223 free(hub);
3224}
3225
ffa81d5f
FT		 3226static void hubkill(struct fnetnode *fn)
3227{
3228 struct dchub *hub;
3229
3230 hub = (struct dchub *)fn->data;
d1ef0200 3231 closesock(hub->sk);
ffa81d5f
FT		 3232}
3233
d3372da9 3234static struct fnet dcnet =
3235{
3236 .name = L"dc",
3237 .connect = hubconnect,
3238 .destroy = hubdestroy,
ffa81d5f 3239 .kill = hubkill,
d3372da9 3240 .setnick = hubsetnick,
3241 .reqconn = hubreqconn,
3242 .sendchat = hubsendchat,
3243 .search = hubsearch,
d3372da9 3244};
3245
cab0b442 3246static void peerread(struct socket *sk, struct dcpeer *peer)
d3372da9 3247{
cab0b442 3248 char *newbuf, *p;
8cb2d75b 3249 size_t datalen, cnlen;
cab0b442 3250 struct command *cmd;
5ec60e42 3251
81286a22
FT		 3252 if(peer->state == PEER_CMD) {
3253 if((peer->queue.size > 50) || (peer->inbufdata > 65536))
3254 return;
bd5d862e
FT		 3255 } else if(peer->state == PEER_TTHL) {
3256 } else {
3257 return;
81286a22 3258 }
d3372da9 3259 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 3260 return;
d3372da9 3261 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
3262 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
3263 free(newbuf);
d3372da9 3264 peer->inbufdata += datalen;
9a2d6cb8 3265 if(peer->state == PEER_CMD)
d3372da9 3266 {
cab0b442 3267 p = peer->inbuf;
3268 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
3269 {
3270 *(p++) = 0;
cab0b442 3271 for(cmd = peercmds; cmd->handler != NULL; cmd++)
3272 {
8cb2d75b
FT		 3273 cnlen = strlen(cmd->name);
3274 if(!strncmp(peer->inbuf, cmd->name, cnlen) && ((peer->inbuf[cnlen] == ' ') || (peer->inbuf[cnlen] == 0)))
cab0b442 3275 break;
3276 }
8cb2d75b
FT		 3277 if((cmd->limit == 0) || (peer->queue.size < cmd->limit))
3278 newqcmd(&peer->queue, peer->inbuf);
cab0b442 3279 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
3280 if(cmd->stop)
3281 {
3282 peer->state = PEER_STOP;
3283 break;
3284 }
3285 }
9a2d6cb8 3286 } else if(peer->state == PEER_TTHL) {
3287 handletthl(peer);
d3372da9 3288 }
3289}
3290
cab0b442 3291static void peererror(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 3292{
3293 freedcpeer(peer);
3294}
3295
cab0b442 3296static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
d3372da9 3297{
3298 struct dcpeer *peer;
1c4b02cd 3299 struct dchub *hub;
d3372da9 3300
3301 if(err != 0)
3302 {
3303 putfnetnode(fn);
cab0b442 3304 return;
d3372da9 3305 }
1c4b02cd 3306 hub = fn->data;
d3372da9 3307 peer = newdcpeer(sk);
3308 peer->fn = fn;
3309 peer->accepted = 0;
1c4b02cd 3310 peer->dcppemu = hub->dcppemu;
cab0b442 3311 sk->readcb = (void (*)(struct socket *, void *))peerread;
3312 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3313 sk->data = peer;
d3372da9 3314 socksettos(sk, confgetint("fnet", "fnptos"));
1e9d82b1 3315 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 3316 sendmynick(peer);
3317 sendpeerlock(peer);
d3372da9 3318}
3319
d1ef0200 3320static void peeraccept(struct lport *lp, struct socket *newsk, void *data)
d3372da9 3321{
3322 struct dcpeer *peer;
3323
3324 peer = newdcpeer(newsk);
3325 peer->accepted = 1;
cab0b442 3326 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3327 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3328 newsk->data = peer;
d3372da9 3329 socksettos(newsk, confgetint("fnet", "fnptos"));
1e9d82b1 3330 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3331}
3332
3333static void updatehmlist(void)
3334{
3335 int i, lev, ic, ret;
3336 struct sharecache *node;
3337 char *buf, *buf2, numbuf[32];
3338 size_t bufsize, bufdata;
3339 int fd, ibuf;
50d8d5c1 3340 FILE *out;
d3372da9 3341
3342 bufdata = 0;
3343 buf = smalloc(bufsize = 65536);
3344 node = shareroot->child;
3345 lev = 0;
3346 while(1)
3347 {
3348 ic = 0;
1d85f24b 3349 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 3350 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3351 {
3352 for(i = 0; i < lev; i++)
3353 addtobuf(buf, 9);
3354 bufcat(buf, buf2, strlen(buf2));
3355 free(buf2);
3356 if(node->f.b.type == FILE_REG)
3357 {
3358 addtobuf(buf, '|');
dcf7a1a2 3359 sprintf(numbuf, "%ji", (intmax_t)node->size);
d3372da9 3360 bufcat(buf, numbuf, strlen(numbuf));
3361 }
3362 addtobuf(buf, 13);
3363 addtobuf(buf, 10);
3364 } else {
3365 ic = 1;
3366 }
3367 if((node->child != NULL) && !ic)
3368 {
3369 lev++;
3370 node = node->child;
3371 } else if(node->next != NULL) {
3372 node = node->next;
3373 } else {
3374 while(node->next == NULL)
3375 {
3376 lev--;
3377 node = node->parent;
3378 if(node == shareroot)
3379 break;
3380 }
3381 if(node == shareroot)
3382 break;
3383 node = node->next;
3384 }
3385 }
3386 if(hmlistname != NULL)
3387 {
3388 unlink(hmlistname);
3389 free(hmlistname);
3390 }
3391 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3392 if((fd = mkstemp(hmlistname)) < 0)
3393 {
3394 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3395 free(hmlistname);
3396 hmlistname = NULL;
3397 } else {
50d8d5c1 3398 out = fdopen(fd, "w");
d3372da9 3399 /*
3400 * I do not want to implement a good Huffman encoder, and it's not
3401 * like Huffman encoding actually yields any impressive results
3402 * for DC file lists anyway, so I'll just output a bogus
3403 * tree. Implement a good encoder if you want to.
3404 */
50d8d5c1
FT		 3405 fwrite("HE3\r\0", 1, 5, out);
3406 fwrite(&bufdata, 4, 1, out); /* XXX: Endian unsafe */
d3372da9 3407 ibuf = 256;
50d8d5c1 3408 fwrite(&ibuf, 2, 1, out);
d3372da9 3409 ibuf = 8;
3410 for(i = 0; i < 256; i++)
3411 {
50d8d5c1
FT		 3412 fwrite(&i, 1, 1, out);
3413 fwrite(&ibuf, 1, 1, out);
d3372da9 3414 }
3415 for(i = 0; i < 256; i++)
50d8d5c1 3416 fwrite(&i, 1, 1, out);
d3372da9 3417 for(buf2 = buf; bufdata > 0;)
3418 {
50d8d5c1 3419 if((ret = fwrite(buf2, 1, bufdata, out)) < 0)
d3372da9 3420 {
3421 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3422 break;
3423 }
3424 bufdata -= ret;
3425 buf2 += ret;
3426 }
50d8d5c1 3427 fclose(out);
d3372da9 3428 }
3429 free(buf);
3430}
3431
3432static struct xmlent
3433{
3434 wchar_t c;
3435 wchar_t *ent;
3436} entities[] = {
3437 {L'&', L"&amp;"},
3438 {L'\"', L"&#34;"},
3439/* {L'\'', L"&quot;"}, Emulate DC++ escaping by omitting this. */
3440 {L'\0', NULL}
3441};
3442
3443static wchar_t *escapexml(wchar_t *src)
3444{
3445 static wchar_t *buf = NULL;;
3446 int ret, c;
3447 wchar_t nbuf[32];
3448 size_t bufsize, bufdata;
3449 struct xmlent *ent;
3450
3451 if(buf != NULL)
3452 free(buf);
3453 buf = NULL;
3454 bufsize = bufdata = 0;
3455 for(; *src != L'\0'; src++)
3456 {
3457 c = wctob(*src);
3458 if((c > 0) && (c < 32))
3459 {
3460 bufcat(buf, L"&#", 2);
3461 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3462 bufcat(buf, nbuf, ret);
3463 addtobuf(buf, L';');
3464 } else {
3465 for(ent = entities; ent->ent != NULL; ent++)
3466 {
3467 if(ent->c == *src)
3468 {
3469 bufcat(buf, ent->ent, wcslen(ent->ent));
3470 break;
3471 }
3472 }
3473 if(ent->ent == NULL)
3474 addtobuf(buf, *src);
3475 }
3476 }
3477 addtobuf(buf, L'\0');
3478 return(buf);
3479}
3480
3481static void updatexmllist(void)
3482{
3483 int i, fd, lev;
3484 FILE *fs;
3485 char cidbuf[14], *namebuf;
3486 char *hashbuf;
3487 struct sharecache *node;
3488
3489 if(xmllistname != NULL)
3490 {
3491 unlink(xmllistname);
3492 free(xmllistname);
3493 }
3494 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3495 if((fd = mkstemp(xmllistname)) < 0)
3496 {
3497 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3498 free(xmllistname);
3499 xmllistname = NULL;
3500 return;
3501 }
3502 if((fs = fdopen(fd, "w")) == NULL)
3503 {
3504 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3505 unlink(xmllistname);
3506 free(xmllistname);
3507 xmllistname = NULL;
3508 close(fd);
3509 return;
3510 }
3511 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3512 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3513 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3514 cidbuf[i] = 0;
1c4b02cd 3515 if(confgetint("dc", "dcppemu"))
3516 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"DC++ 0.674\">\r\n", cidbuf);
3517 else
3518 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, "DoldaConnect" VERSION);
d3372da9 3519
3520 node = shareroot->child;
3521 lev = 0;
3522 while(1)
3523 {
3524 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3525 {
3526 for(i = 0; i < lev; i++)
3527 fputc('\t', fs);
3528 if(node->child != NULL)
3529 {
3530 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3531 node = node->child;
3532 lev++;
3533 continue;
3534 } else {
dcf7a1a2 3535 fprintf(fs, "<File Name=\"%s\" Size=\"%ji\"", namebuf, (intmax_t)node->size);
d3372da9 3536 if(node->f.b.hastth)
3537 {
3538 hashbuf = base32encode(node->hashtth, 24);
3539 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3540 free(hashbuf);
3541 }
3542 fprintf(fs, "/>\r\n");
3543 }
3544 while(node->next == NULL)
3545 {
3546 node = node->parent;
3547 if(node == shareroot)
3548 {
3549 break;
3550 } else {
3551 lev--;
3552 for(i = 0; i < lev; i++)
3553 fputc('\t', fs);
3554 fprintf(fs, "</Directory>\r\n");
3555 }
3556 }
3557 if(node == shareroot)
3558 break;
3559 node = node->next;
3560 }
3561 }
3562
1c4b02cd 3563 if(confgetint("dc", "dcppemu"))
3564 fprintf(fs, "</FileListing>");
3565 else
3566 fprintf(fs, "</FileListing>\r\n");
d3372da9 3567 fclose(fs);
3568}
3569
3570static void updatexmlbz2list(void)
3571{
3572 int err, fd;
3573 FILE *in;
3574 FILE *real;
3575 BZFILE *out;
3576 char buf[1024];
3577 size_t bufdata;
3578
3579 if(xmllistname == NULL)
3580 return;
3581 if((in = fopen(xmllistname, "r")) == NULL)
3582 {
3583 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3584 return;
3585 }
3586 if(xmlbz2listname != NULL)
3587 {
3588 unlink(xmlbz2listname);
3589 free(xmlbz2listname);
3590 }
3591 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3592 if((fd = mkstemp(xmlbz2listname)) < 0)
3593 {
3594 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3595 free(xmlbz2listname);
3596 xmlbz2listname = NULL;
3597 fclose(in);
3598 return;
3599 }
3600 if((real = fdopen(fd, "w")) == NULL)
3601 {
3602 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3603 close(fd);
3604 unlink(xmlbz2listname);
3605 free(xmlbz2listname);
3606 xmlbz2listname = NULL;
3607 fclose(in);
3608 return;
3609 }
3610 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3611 if(err != BZ_OK)
3612 {
3613 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3614 fclose(real);
3615 unlink(xmlbz2listname);
3616 free(xmlbz2listname);
3617 xmlbz2listname = NULL;
3618 fclose(in);
3619 return;
3620 }
3621 while(!feof(in))
3622 {
3623 bufdata = fread(buf, 1, sizeof(buf), in);
3624 BZ2_bzWrite(&err, out, buf, bufdata);
3625 }
3626 fclose(in);
3627 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3628 fclose(real);
3629}
3630
6305c428 3631static void listtimercb(int cancelled, void *uudata)
3632{
3633 listwritetimer = NULL;
3634 if(!cancelled)
3635 updatelists(1);
3636}
3637
3638static void updatelists(int now)
d3372da9 3639{
000ca725 3640 if((hmlistname == NULL) || (xmllistname == NULL) || (xmlbz2listname == NULL))
3641 now = 1;
6305c428 3642 if(!now)
3643 {
3644 if(listwritetimer == NULL)
ddb3658e 3645 listwritetimer = timercallback(ntime() + confgetint("cli", "hashwritedelay"), listtimercb, NULL);
6305c428 3646 return;
3647 }
3648 if(listwritetimer != NULL)
3649 canceltimer(listwritetimer);
d3372da9 3650 updatehmlist();
3651 updatexmllist();
3652 updatexmlbz2list();
6305c428 3653}
3654
3655static int shareupdate(unsigned long long uusharesize, void *data)
3656{
3657 updatelists(0);
d3372da9 3658 return(0);
3659}
3660
7395a37f
FT		 3661static char *quotestr(char *str)
3662{
3663 unsigned char *buf;
3664 unsigned char *p;
3665 size_t bufsize, bufdata;
3666 wchar_t *wbuf;
3667 static char *enc = NULL;
3668 size_t encsize, encdata;
3669
3670 buf = NULL;
3671 bufsize = bufdata = 0;
3672 for(p = (unsigned char *)str; *p; p++)
3673 {
3674 if(*p == '\b')
3675 bufcat(buf, "\\b", 2);
3676 else if(*p == '\t')
3677 bufcat(buf, "\\t", 2);
3678 else if(*p == '\n')
3679 bufcat(buf, "\\n", 2);
3680 else if(*p == '\r')
3681 bufcat(buf, "\\r", 2);
3682 else if(*p == '\\')
3683 bufcat(buf, "\\\\", 2);
3684 else if(*p >= 32)
3685 addtobuf(buf, *p);
3686 else
3687 bprintf(buf, "\\x%02x", *p);
3688 }
3689 addtobuf(buf, 0);
3690 if(enc != NULL)
3691 free(enc);
3692 enc = NULL;
3693 if((wbuf = icmbstowcs((char *)buf, DCCHARSET)) != NULL)
3694 {
3695 enc = icwcstombs(wbuf, NULL);
3696 free(wbuf);
3697 }
3698 if(enc == NULL)
3699 {
3700 encsize = encdata = 0;
3701 for(p = buf; *p; p++) {
3702 if(*p < 128)
3703 addtobuf(enc, *p);
3704 else
3705 bprintf(buf, "\\x%x", *p);
3706 }
3707 }
3708 free(buf);
3709 return(enc);
3710}
3711
c1928259 3712static void logunimpl(char *list, char *cmd, char *args)
7395a37f
FT		 3713{
3714 FILE *log;
3715
3716 if((log = fopen("/tmp/dc-unimpl", "a")) == NULL)
3717 {
3718 flog(LOG_WARNING, "could not open unimpl log: %s", strerror(errno));
3719 return;
3720 }
c1928259
FT		 3721 fputs(list, log);
3722 fputc('\t', log);
7395a37f
FT		 3723 fputs(quotestr(cmd), log);
3724 if(args != NULL)
3725 {
3726 fputc('\t', log);
3727 fputs(quotestr(args), log);
3728 }
3729 fputc('\n', log);
3730 fclose(log);
3731}
3732
d3372da9 3733static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3734{
3735 char *p;
3736 struct command *cmd;
3737
3738 if((p = strchr(qcmd->string, ' ')) != NULL)
3739 *(p++) = 0;
3740 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3741 {
3742 if(!strcmp(cmd->name, qcmd->string))
3743 break;
3744 }
3745 if(cmd->handler != NULL)
c1928259 3746 {
d3372da9 3747 cmd->handler(sk, data, qcmd->string, p);
c1928259
FT		 3748 } else if(confgetint("dc", "logunimpl")) {
3749 if(cmdlist == hubcmds)
3750 logunimpl("hub", qcmd->string, p);
3751 else if(cmdlist == peercmds)
3752 logunimpl("peer", qcmd->string, p);
3753 else
3754 logunimpl("other?!", qcmd->string, p);
3755 }
d3372da9 3756}
3757
3758static int run(void)
3759{
3760 struct fnetnode *fn, *nextfn;
3761 struct dchub *hub;
3762 struct dcpeer *peer, *nextpeer;
3763 struct qcommand *qcmd;
e0731d8c 3764 int ret, quota;
d3372da9 3765
3766 ret = 0;
e0731d8c 3767 quota = 20;
d3372da9 3768 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3769 {
3770 nextfn = fn->next;
3771 if(fn->fnet != &dcnet)
3772 continue;
3773 if(fn->data == NULL)
3774 continue;
3775 hub = (struct dchub *)fn->data;
e0731d8c 3776 while((quota > 0) && ((qcmd = ulqcmd(&hub->queue)) != NULL))
d3372da9 3777 {
3778 if(*qcmd->string == '$')
3779 {
ffa81d5f
FT		 3780 if((hub->sk != NULL) && (hub->sk->state == SOCK_EST))
3781 dispatchcommand(qcmd, hubcmds, hub->sk, fn);
d3372da9 3782 } else if(*qcmd->string != 0) {
ffa81d5f 3783 hubrecvchat(hub->sk, fn, NULL, qcmd->string);
d3372da9 3784 }
3785 freeqcmd(qcmd);
3786 ret = 1;
e0731d8c 3787 quota--;
d3372da9 3788 }
e0731d8c 3789 if(hub->queue.size < 1000)
81286a22 3790 hubread(hub->sk, fn);
e0731d8c
FT		 3791 if(quota < 1)
3792 break;
d3372da9 3793 }
e0731d8c 3794 quota = 20;
2bf4942d 3795 for(peer = peers; peer != NULL; peer = peer->next)
d3372da9 3796 {
2bf4942d 3797 while(!peer->close && (quota > 0) && ((qcmd = ulqcmd(&peer->queue)) != NULL))
d3372da9 3798 {
1e9d82b1 3799 if(peer->timeout != NULL)
3800 canceltimer(peer->timeout);
3801 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3802 if(*qcmd->string == '$')
3803 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3804 freeqcmd(qcmd);
3805 ret = 1;
e0731d8c 3806 quota--;
d3372da9 3807 }
e0731d8c 3808 if((peer->queue.size < 50) && (peer->inbufdata < 500000))
81286a22 3809 peerread(peer->sk, peer);
e0731d8c
FT		 3810 if(quota < 1)
3811 break;
d3372da9 3812 }
2bf4942d
FT		 3813 for(peer = peers; peer != NULL; peer = nextpeer)
3814 {
3815 nextpeer = peer->next;
3816 if(peer->close)
3817 freedcpeer(peer);
3818 }
d3372da9 3819 return(ret);
3820}
3821
3822static void preinit(int hup)
3823{
3824 if(hup)
3825 return;
3826 regfnet(&dcnet);
3827}
3828
3829static int updateudpport(struct configvar *var, void *uudata)
3830{
3831 struct sockaddr_in addr;
3832 struct socket *newsock;
3833
3834 memset(&addr, 0, sizeof(addr));
3835 addr.sin_family = AF_INET;
3836 addr.sin_port = htons(var->val.num);
3837 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3838 {
3839 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3840 return(0);
3841 }
cab0b442 3842 newsock->readcb = udpread;
d3372da9 3843 if(udpsock != NULL)
3844 putsock(udpsock);
3845 udpsock = newsock;
3846 return(0);
3847}
3848
3849static int updatetcpport(struct configvar *var, void *uudata)
3850{
3851 struct sockaddr_in addr;
d1ef0200 3852 struct lport *newsock;
d3372da9 3853
3854 memset(&addr, 0, sizeof(addr));
3855 addr.sin_family = AF_INET;
3856 addr.sin_port = htons(var->val.num);
3857 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3858 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3859 if(tcpsock != NULL)
d1ef0200 3860 closelport(tcpsock);
d3372da9 3861 tcpsock = newsock;
3862 return(0);
3863}
3864
3865static int init(int hup)
3866{
3867 struct sockaddr_in addr;
3868
3869 if(!hup)
3870 {
3871 GCBREG(sharechangecb, shareupdate, NULL);
3872 if(udpsock != NULL)
3873 putsock(udpsock);
3874 if(tcpsock != NULL)
d1ef0200 3875 closelport(tcpsock);
d3372da9 3876 addr.sin_family = AF_INET;
3877 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3878 addr.sin_port = htons(confgetint("dc", "udpport"));
3879 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3880 {
3881 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3882 return(1);
3883 }
cab0b442 3884 udpsock->readcb = udpread;
d3372da9 3885 addr.sin_port = htons(confgetint("dc", "tcpport"));
3886 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3887 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3888 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3889 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3890 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3891 }
3892 return(0);
3893}
3894
3895static void terminate(void)
3896{
3897 if(hmlistname != NULL)
3898 {
3899 unlink(hmlistname);
3900 free(hmlistname);
3901 }
3902 if(xmllistname != NULL)
3903 {
3904 unlink(xmllistname);
3905 free(xmllistname);
3906 }
3907 if(xmlbz2listname != NULL)
3908 {
3909 unlink(xmlbz2listname);
3910 free(xmlbz2listname);
3911 }
3912}
3913
3914static struct configvar myvars[] =
3915{
d9f89ef5 3916 /** Specifies the share description reported to other DC users. */
d3372da9 3917 {CONF_VAR_STRING, "desc", {.str = L""}},
d9f89ef5 3918 /** Specifies the speed reported to other DC users. Normal values
3919 * are 28.8Kbps, 33.6Kbps, 56Kbps, Satellite, ISDN, DSL, Cable,
3920 * LAN(T1) or LAN(T3)*/
d3372da9 3921 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
d9f89ef5 3922 /** The e-mail address to report to other DC users. */
d3372da9 3923 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
d9f89ef5 3924 /** Specifies a specific UDP port to use for DC search results. If
3925 * left unspecified, a port is allocated dynamically. Useful for
3926 * NAT routers (see also the net.visibleipv4 address for those
3927 * cases). */
d3372da9 3928 {CONF_VAR_INT, "udpport", {.num = 0}},
d9f89ef5 3929 /** Specifies a specific TCP port to use for DC peer
3930 * connections. If left unspecified, a port is allocated
3931 * dynamically. Useful for NAT routers (see also the
3932 * net.visibleipv4 address for those cases). */
d3372da9 3933 {CONF_VAR_INT, "tcpport", {.num = 0}},
d9f89ef5 3934 /** If set to true, doldacond will do its best to emulate DC++
3935 * (currently v0.674). This should be left off if at all possible,
3936 * since turning it on will violate the rules of most hubs and
3937 * thus give hub owners an actual reason to kick you if it is
3938 * detected. It might be needed for some of the more bone-headed
3939 * hub owners, though. Note that DC++ emulation can also be turned
3940 * on or off for individual hubs, overriding this setting. */
1c4b02cd 3941 {CONF_VAR_BOOL, "dcppemu", {.num = 0}},
7395a37f
FT		 3942 /** Use for debugging. If set to true, doldacond will log all
3943 * unknown commands it receives, and their arguments, to
3944 * /tmp/dc-unimpl. */
3945 {CONF_VAR_BOOL, "logunimpl", {.num = 0}},
4b544330
FT		 3946 /** If set to true, doldacond will hide its support for deflate
3947 * compression of transfers from other clients, so that they will
3948 * not request compressed uploads. Compressed transfers may
3949 * consume a non-trivial amount of CPU time on slower machines. */
3950 {CONF_VAR_BOOL, "hidedeflate", {.num = 0}},
d3372da9 3951 {CONF_VAR_END}
3952};
3953
3954static struct module me =
3955{
3956 .conf =
3957 {
3958 .vars = myvars
3959 },
3960 .preinit = preinit,
3961 .init = init,
3962 .run = run,
3963 .terminate = terminate,
3964 .name = "dc"
3965};
3966
3967MODULE(me)
Dolda Connect