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1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
3 * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com)
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#define _GNU_SOURCE
20#include <unistd.h>
21#include <stdlib.h>
22#include <malloc.h>
23#include <sys/socket.h>
24#include <netinet/in.h>
25#include <netinet/ip6.h>
26#include <arpa/inet.h>
27#include <errno.h>
28#include <string.h>
29#include <stdarg.h>
30#include <wchar.h>
31#include <wctype.h>
32#include <iconv.h>
33#include <pwd.h>
34#include <time.h>
35#include <fcntl.h>
36#include <signal.h>
37
38#ifdef HAVE_CONFIG_H
39#include <config.h>
40#endif
41#include "conf.h"
42#include "auth.h"
43#include "utils.h"
44#include "net.h"
45#include "module.h"
46#include "sysevents.h"
47#include "filenet.h"
48#include "transfer.h"
49#include "search.h"
50#include "client.h"
51
52#define PERM_DISALLOW 1
53#define PERM_ADMIN 2
54#define PERM_FNETCTL 4
55#define PERM_TRANS 8
56#define PERM_TRANSCU 16
57#define PERM_CHAT 32
58#define PERM_SRCH 64
59
60#define NOTIF_END 0
61#define NOTIF_INT 1
62#define NOTIF_STR 2
63#define NOTIF_FLOAT 3
64#define NOTIF_ID 4
65#define NOTIF_PEND 0
66#define NOTIF_WAIT 1
67
68struct uidata;
69
70struct command
71{
72 wchar_t *name;
73 void (*handler)(struct socket *sk, struct uidata *data, int argc, wchar_t **argv);
74};
75
76struct qcommand
77{
78 struct qcommand *next;
79 struct command *cmd;
80 int argc;
81 wchar_t **argv;
82};
83
84struct uiuser
85{
86 struct uiuser *next, *prev;
87 int used;
88 wchar_t *name;
89 unsigned long perms;
90 int delete;
91};
92
93struct notif
94{
95 struct notif *next, *prev;
96 struct uidata *ui;
97 int state;
98 int code;
99 double rlimit;
100 size_t argc;
101 struct timer *exptimer;
102 struct notifarg
103 {
104 int dt;
105 union
106 {
107 int n;
108 wchar_t *s;
109 double d;
110 } d;
111 } *argv;
112};
113
114struct uidata
115{
116 struct uidata *next, *prev;
117 struct socket *sk;
118 struct qcommand *queue, *queuelast;
119 struct authhandle *auth;
120 int close;
121 union
122 {
123 struct
124 {
125 int fnact:1;
126 int fnchat:1;
127 int fnpeer:1;
128 int tract:1;
129 int trprog:1;
130 int srch:1;
131 int msg:1;
132 } b;
133 int w;
134 } notify;
135 wchar_t *username;
136 struct uiuser *userinfo;
137 int id;
138 wchar_t *regname;
139 uid_t uid;
140 struct notif *fnotif, *lnotif;
141 char *fcmdbuf;
142 size_t fcmdbufdata, fcmdbufsize;
143 pid_t fcmdpid;
144 struct socket *fcmdsk;
145 /* Read buffer */
146 char *inbuf;
147 size_t inbufsize, indata;
148 /* Wordset storage */
149 wchar_t **argv;
150 size_t argc, args;
151 /* WCS conversation stuff */
152 wchar_t *cb; /* Conversation buffer */
153 size_t cbsize, cbdata;
154 iconv_t ichandle;
155 /* Parser data */
156 int ps; /* Parser state */
157 wchar_t *pp; /* Current parse pointer */
158 wchar_t *cw; /* Current word (building storage) */
159 size_t cwsize, cwdata;
160};
161
162static int srcheta(struct search *srch, void *uudata);
163static int srchcommit(struct search *srch, void *uudata);
164static int srchres(struct search *srch, struct srchres *sr, void *uudata);
165static struct notif *newnotif(struct uidata *data, int code, ...);
166static void notifappend(struct notif *notif, ...);
167
168struct uiuser *users = NULL;
169struct uidata *actives = NULL;
170struct socket *uisocket = NULL;
171static time_t starttime;
172
173static wchar_t *quoteword(wchar_t *word)
174{
175 wchar_t *wp, *buf, *bp;
176 int dq, numbs, numc;
177
178 dq = 0;
179 numbs = 0;
180 numc = 0;
181 if(*word == L'\0')
182 {
183 dq = 1;
184 } else {
185 for(wp = word; *wp != L'\0'; wp++)
186 {
187 if(!dq && iswspace(*wp))
188 dq = 1;
189 if((*wp == L'\\') || (*wp == L'\"'))
190 numbs++;
191 numc++;
192 }
193 }
194 if(!dq && !numbs)
195 return(NULL);
196 bp = buf = smalloc(sizeof(wchar_t) * (numc + numbs + (dq?2:0) + 1));
197 if(dq)
198 *(bp++) = L'\"';
199 for(wp = word; *wp != L'\0'; wp++)
200 {
201 if((*wp == L'\\') || (*wp == L'\"'))
202 *(bp++) = L'\\';
203 *(bp++) = *wp;
204 }
205 if(dq)
206 *(bp++) = L'\"';
207 *(bp++) = L'\0';
208 return(buf);
209}
210
211static void sq(struct socket *sk, int cont, ...)
212{
213 int num, freepart;
214 va_list al;
215 char *final;
216 wchar_t *buf;
217 wchar_t *part, *tpart;
218 size_t bufsize, bufdata;
219
220 buf = NULL;
221 bufsize = bufdata = 0;
222 num = 0;
223 va_start(al, cont);
224 while((part = va_arg(al, wchar_t *)) != NULL)
225 {
226 if(*part == L'%')
227 {
228 /*
229 * This kludge demands that all arguments that you call it
230 * with are the size of an int. That happens to be the
231 * case for most datatypes on most platforms and
232 * compilers, but I don't know exactly which ones, and
233 * also a long long is a notable candidate of an arg that
234 * is not the size of an int on 32-bit archs. If it breaks
235 * some existing call on your architecture, please tell
236 * me.
237 */
238 part = vswprintf2(tpart = (part + 1), al);
239 for(; *tpart != L'\0'; tpart++)
240 {
241 if(*tpart == L'%')
242 {
243 if(tpart[1] == L'%')
244 tpart++;
245 else
246 va_arg(al, int);
247 }
248 }
249 freepart = 1;
250 } else {
251 freepart = 0;
252 }
253 if((tpart = quoteword(part)) != NULL)
254 {
255 if(freepart)
256 free(part);
257 part = tpart;
258 freepart = 1;
259 }
260 if((num > 1) || ((num == 1) && !(cont & 1)))
261 addtobuf(buf, L' ');
262 bufcat(buf, part, wcslen(part));
263 if((num == 0) && (cont & 1))
264 addtobuf(buf, L'-');
265 num++;
266 if(freepart)
267 free(part);
268 }
269 if(cont & 2)
270 bufcat(buf, L" \0", 2);
271 else
272 bufcat(buf, L"\r\n\0", 3);
273 if((final = icwcstombs(buf, "utf-8")) == NULL)
274 {
275 flog(LOG_CRIT, "could not convert \"%ls\" into utf-8: %s", buf, strerror(errno));
276 free(buf);
277 return;
278 }
279 va_end(al);
280 free(buf);
281 sockqueue(sk, final, strlen(final));
282 free(final);
283}
284
285struct uiuser *finduser(wchar_t *name)
286{
287 struct uiuser *user;
288
289 for(user = users; user != NULL; user = user->next)
290 {
291 if(!wcscmp(user->name, name))
292 break;
293 }
294 return(user);
295}
296
297static void logout(struct uidata *data)
298{
299 data->userinfo = NULL;
300 if(data->username != NULL)
301 free(data->username);
302 data->username = NULL;
303 if(data->auth != NULL)
304 authputhandle(data->auth);
305 data->auth = NULL;
306}
307
308static int haspriv(struct uidata *data, int perm)
309{
310 if(data->userinfo == NULL)
311 return(0);
312 if(data->userinfo->perms & perm)
313 return(1);
314 else
315 return(0);
316}
317
318/* Useful macros for the command functions: */
319#define haveargs(n) do { if(argc < n) { sq(sk, 0, L"501", L"Wrong number of arguments", NULL); return; } } while(0)
320#define havepriv(p) do { if((data->userinfo == NULL) || ((data->userinfo->perms & (p)) != (p))) { sq(sk, 0, L"502", L"%Unauthorized request - %x needed", (p), NULL); return; } } while(0)
321
322static void cmd_connect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
323{
324 int valid;
325 struct in6_addr mv4lo;
326
327 if(confgetint("ui", "onlylocal"))
328 {
329 switch(sk->remote->sa_family)
330 {
331 case AF_INET:
332 valid = ((struct sockaddr_in *)sk->remote)->sin_addr.s_addr == INADDR_LOOPBACK;
333 break;
334 case AF_INET6:
335 inet_pton(AF_INET6, "::ffff:127.0.0.1", &mv4lo);
336 valid = 0;
337 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)))
338 valid = 1;
339 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &mv4lo, sizeof(in6addr_loopback)))
340 valid = 1;
341 break;
342 default:
343 valid = 0;
344 break;
345 }
346 if(!valid)
347 {
348 sq(sk, 0, L"502", L"Only localhost connections allowed to this host", NULL);
349 sk->close = 1;
350 data->close = 1;
351 return;
352 }
353 }
354 sq(sk, 0, L"200", L"%Dolda Connect daemon v%s", VERSION, NULL);
355}
356
357static void cmd_notfound(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
358{
359 if((argv != NULL) && (argv[0] != NULL))
360 sq(sk, 0, L"500", L"%Command not found: %ls", argv[0], NULL);
361 else
362 sq(sk, 0, L"500", L"No command", NULL);
363}
364
365static void cmd_shutdown(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
366{
367 extern volatile int running;
368
369 havepriv(PERM_ADMIN);
370 flog(LOG_NOTICE, "UI shutdown request from %ls, shutting down", data->username);
371 running = 0;
372 sq(sk, 0, L"200", L"Daemon shutting down", NULL);
373}
374
375static void cmd_quit(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
376{
377 sq(sk, 0, L"200", L"Closing connection", NULL);
378 data->close = 1;
379}
380
381static void cmd_lsauth(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
382{
383 struct authmech *mech, *prev;
384
385 prev = NULL;
386 for(mech = mechs; mech != NULL; mech = mech->next)
387 {
388 if(mech->enabled)
389 {
390 if(prev != NULL)
391 sq(sk, 1, L"200", prev->name, NULL);
392 prev = mech;
393 }
394 }
395 if(prev == NULL)
396 sq(sk, 0, L"201", L"No authentication methods supported", NULL);
397 else
398 sq(sk, 0, L"200", prev->name, NULL);
399}
400
401static void cmd_login(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
402{
403 char *buf;
404 int code;
405 struct passwd *pwd;
406
407 haveargs(3);
408 if(data->username != NULL)
409 {
410 if(data->userinfo != NULL)
411 sq(sk, 0, L"503", L"Already logged in", NULL);
412 else
413 sq(sk, 0, L"503", L"Already logging in", NULL);
414 return;
415 }
416 if((buf = icwcstombs(argv[2], NULL)) == NULL)
417 {
418 sq(sk, 0, L"504", L"Could not convert username to locale charset", NULL);
419 return;
420 }
421 data->username = swcsdup(argv[2]);
422 if((pwd = getpwnam(buf)) == NULL)
423 data->uid = -1;
424 else
425 data->uid = pwd->pw_uid;
426 if((data->auth = initauth(argv[1], buf)) == NULL)
427 {
428 if(errno == ENOENT)
429 sq(sk, 0, L"508", L"No such authentication mechanism", NULL);
430 else
431 sq(sk, 0, L"505", L"Could not initialize authentication system", L"%%s", strerror(errno), NULL);
432 free(buf);
433 logout(data);
434 return;
435 }
436 free(buf);
437 switch(authenticate(data->auth, NULL))
438 {
439 case AUTH_SUCCESS:
440 data->userinfo = finduser(data->username);
441 if(data->userinfo == NULL)
442 data->userinfo = finduser(L"default");
443 if(data->uid == -1)
444 {
445 sq(sk, 0, L"506", L"Authentication error", NULL);
446 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
447 logout(data);
448 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
449 sq(sk, 0, L"506", L"Authentication error", NULL);
450 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
451 logout(data);
452 } else {
453 sq(sk, 0, L"200", L"Welcome", NULL);
454 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
455 }
456 break;
457 case AUTH_DENIED:
458 sq(sk, 0, L"506", L"Authentication error", L"%%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
459 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
460 logout(data);
461 break;
462 case AUTH_PASS:
463 switch(data->auth->prompt)
464 {
465 case AUTH_PR_AUTO:
466 code = 300;
467 break;
468 case AUTH_PR_NOECHO:
469 code = 301;
470 break;
471 case AUTH_PR_ECHO:
472 code = 302;
473 break;
474 case AUTH_PR_INFO:
475 code = 303;
476 break;
477 case AUTH_PR_ERROR:
478 code = 304;
479 break;
480 }
481 sq(sk, 0, L"%%i", code, data->auth->text, NULL);
482 break;
483 case AUTH_ERR:
484 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
485 logout(data);
486 break;
487 default:
488 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_login");
489 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
490 logout(data);
491 break;
492 }
493}
494
495static void cmd_pass(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
496{
497 char *buf;
498 int code;
499
500 haveargs(2);
501 if((buf = icwcstombs(argv[1], NULL)) == NULL)
502 {
503 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
504 return;
505 }
506 if((data->auth == NULL) || (data->userinfo != NULL))
507 {
508 sq(sk, 0, L"507", L"Data not expected", NULL);
509 return;
510 }
511 switch(authenticate(data->auth, buf))
512 {
513 case AUTH_SUCCESS:
514 data->userinfo = finduser(data->username);
515 if(data->userinfo == NULL)
516 data->userinfo = finduser(L"default");
517 if(data->uid == -1)
518 {
519 sq(sk, 0, L"506", L"Authentication error", NULL);
520 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
521 logout(data);
522 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
523 sq(sk, 0, L"506", L"Authentication error", NULL);
524 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
525 logout(data);
526 } else {
527 sq(sk, 0, L"200", L"Welcome", NULL);
528 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
529 }
530 break;
531 case AUTH_DENIED:
532 sq(sk, 0, L"506", L"Authentication error", L"%%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
533 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
534 logout(data);
535 break;
536 case AUTH_PASS:
537 switch(data->auth->prompt)
538 {
539 case AUTH_PR_AUTO:
540 code = 300;
541 break;
542 case AUTH_PR_NOECHO:
543 code = 301;
544 break;
545 case AUTH_PR_ECHO:
546 code = 302;
547 break;
548 case AUTH_PR_INFO:
549 code = 303;
550 break;
551 case AUTH_PR_ERROR:
552 code = 304;
553 break;
554 }
555 sq(sk, 0, L"%%i", code, data->auth->text, NULL);
556 break;
557 case AUTH_ERR:
558 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
559 logout(data);
560 break;
561 default:
562 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_pass");
563 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
564 logout(data);
565 break;
566 }
567 free(buf);
568}
569
570static void cmd_fnetconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
571{
572 int i;
573 char *buf;
574 int err;
575 struct fnetnode *fn;
576 struct wcspair *args;
577
578 haveargs(3);
579 havepriv(PERM_FNETCTL);
580 for(i = 0, fn = fnetnodes; fn != NULL; i++, fn = fn->next);
581 if((confgetint("fnet", "maxnodes") > 0) && (i >= confgetint("fnet", "maxnodes"))) {
582 sq(sk, 0, L"515", L"Too many fnetnodes connected already", NULL);
583 return;
584 }
585 if((buf = icwcstombs(argv[2], NULL)) == NULL)
586 {
587 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
588 return;
589 }
590 args = NULL;
591 for(i = 3; i < argc - 1; i += 2)
592 newwcspair(argv[i], argv[i + 1], &args);
593 fn = fnetinitconnect(argv[1], data->userinfo->name, buf, args);
594 err = errno;
595 free(buf);
596 if(fn == NULL)
597 {
598 if(errno == EPROTONOSUPPORT)
599 sq(sk, 0, L"511", L"No such network name", NULL);
600 else
601 sq(sk, 0, L"509", L"Could not parse the address", L"%%s", strerror(err), NULL);
602 return;
603 }
604 linkfnetnode(fn);
605 fnetsetname(fn, argv[2]);
606 sq(sk, 0, L"200", L"%%i", fn->id, L"Connection under way", NULL);
607 putfnetnode(fn);
608}
609
610static void cmd_lsnodes(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
611{
612 struct fnetnode *fn;
613
614 if(fnetnodes == NULL)
615 {
616 sq(sk, 0, L"201", L"No connected nodes", NULL);
617 return;
618 }
619 for(fn = fnetnodes; fn != NULL; fn = fn->next)
620 {
621 sq(sk, (fn->next != NULL)?1:0, L"200", L"%%i", fn->id, fn->fnet->name, (fn->name == NULL)?L"":fn->name, L"%%i", fn->numpeers, L"%%i", fn->state, L"%%ls", fn->pubid, NULL);
622 }
623}
624
625static void cmd_disconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
626{
627 struct fnetnode *fn;
628 int i;
629
630 haveargs(2);
631 havepriv(PERM_FNETCTL);
632 /* Note - Programmatical user interfaces must only give one
633 * argument per command, the multiple argument form is only for
634 * convenience when manually controlling the daemon via
635 * eg. telnet. The reason is that the return codes aren't clear
636 * enough for the multiple argument form. */
637 for(i = 1; i < argc; i++)
638 {
639 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
640 {
641 sq(sk, 0, L"510", L"No such node", NULL);
642 return;
643 }
644 if(wpfind(fn->args, L"locked") && !((data->userinfo->perms & PERM_ADMIN) || !wcscmp(data->userinfo->name, fn->owner)))
645 {
646 sq(sk, 0, L"502", L"This node is locked and you are neither administrator nor its owner", NULL);
647 return;
648 }
649 killfnetnode(fn);
650 unlinkfnetnode(fn);
651 }
652 sq(sk, 0, L"200", L"Node flagged for disconnection", NULL);
653}
654
655static void cmd_lspa(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
656{
657 struct fnetnode *fn;
658 struct fnetpeerdatum *datum;
659
660 haveargs(2);
661 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
662 {
663 sq(sk, 0, L"510", L"No such node", NULL);
664 return;
665 }
666 if(fn->peerdata == NULL)
667 {
668 sq(sk, 0, L"201", L"No data available", NULL);
669 } else {
670 for(datum = fn->peerdata; datum != NULL; datum = datum->next)
671 sq(sk, (datum->next != NULL)?1:0, L"200", datum->id, L"%%i", datum->datatype, NULL);
672 }
673}
674
675static void cmd_lspeers(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
676{
677 int i;
678 struct fnetnode *fn;
679 struct fnetpeer *peer;
680 wchar_t buf[40];
681
682 haveargs(2);
683 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
684 {
685 sq(sk, 0, L"510", L"No such node", NULL);
686 return;
687 }
688 if(fn->peers == NULL)
689 {
690 sq(sk, 0, L"201", L"No peers avaiable", NULL);
691 } else {
692 for(peer = fn->peers; peer != NULL; peer = peer->next)
693 {
694 sq(sk, 2 | ((peer->next != NULL)?1:0), L"200", L"%%ls", peer->id, L"%%ls", peer->nick, NULL);
695 for(i = 0; i < peer->dinum; i++)
696 {
697 if(peer->peerdi[i].datum->datatype == FNPD_INT)
698 sq(sk, 2, peer->peerdi[i].datum->id, L"%%i", peer->peerdi[i].data.num, NULL);
699 /* Note: A long long is not the size of an int, so
700 * sq() can't handle the conversion itself. */
701 if(peer->peerdi[i].datum->datatype == FNPD_LL)
702 {
703 swprintf(buf, 40, L"%lli", peer->peerdi[i].data.lnum);
704 sq(sk, 2, peer->peerdi[i].datum->id, buf, NULL);
705 }
706 if((peer->peerdi[i].datum->datatype == FNPD_STR) && (peer->peerdi[i].data.str != NULL))
707 sq(sk, 2, peer->peerdi[i].datum->id, L"%%ls", peer->peerdi[i].data.str, NULL);
708 }
709 sq(sk, 0, NULL);
710 }
711 }
712}
713
714static void cmd_download(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
715{
716 int i;
717 struct fnet *net;
718 struct fnetnode *fn;
719 struct transfer *transfer;
720 struct fnetpeer *peer;
721
722 haveargs(4);
723 if((argc > 5) && ((argc % 2) == 0))
724 {
725 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
726 return;
727 }
728 havepriv(PERM_TRANS);
729 if((*(argv[1]) >= L'0') && (*(argv[1]) <= L'9'))
730 {
731 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
732 {
733 sq(sk, 0, L"510", L"No such node", NULL);
734 return;
735 }
736 net = fn->fnet;
737 } else {
738 fn = NULL;
739 if((net = findfnet(argv[1])) == NULL)
740 {
741 sq(sk, 0, L"511", L"No such network name", NULL);
742 return;
743 }
744 }
745 transfer = newtransfer();
746 authgethandle(transfer->auth = data->auth);
747 transfer->fnet = net;
748 transfer->peerid = swcsdup(argv[2]);
749 transfer->path = swcsdup(argv[3]);
750 transfer->dir = TRNSD_DOWN;
751 transfer->owner = data->uid;
752 if(fn != NULL)
753 {
754 transfer->fn = fn;
755 getfnetnode(fn);
756 linktransfer(transfer);
757 if(((peer = fnetfindpeer(fn, transfer->peerid)) != NULL) && (peer->nick != NULL))
758 transfersetnick(transfer, peer->nick);
759 } else {
760 linktransfer(transfer);
761 }
762 if(argc > 4)
763 transfersetsize(transfer, wcstol(argv[4], NULL, 0));
764 if(argc > 5)
765 {
766 for(i = 5; i < argc; i += 2)
767 {
768 if(!wcscmp(argv[i], L"hash"))
769 {
770 transfersethash(transfer, parsehash(argv[i + 1]));
771 } else {
772 newwcspair(argv[i], argv[i + 1], &transfer->args);
773 }
774 }
775 }
776 sq(sk, 0, L"200", L"%%i", transfer->id, L"Download queued", NULL);
777 transfersetactivity(transfer, L"create");
778}
779
780static void cmd_lstrans(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
781{
782 struct transfer *transfer, *pt;
783
784 havepriv(PERM_TRANS);
785 pt = NULL;
786 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
787 {
788 if((transfer->dir != TRNSD_DOWN) || (transfer->owner == data->uid))
789 {
790 if(pt != NULL)
791 sq(sk, 1, L"200", L"%%i", pt->id, L"%%i", pt->dir,
792 L"%%i", pt->state, pt->peerid,
793 (pt->peernick == NULL)?L"":(pt->peernick),
794 (pt->path == NULL)?L"":(pt->path),
795 L"%%i", pt->size, L"%%i", pt->curpos,
796 (pt->hash == NULL)?L"":unparsehash(pt->hash),
797 NULL);
798 pt = transfer;
799 }
800 }
801 if(pt == NULL)
802 sq(sk, 0, L"201", L"No transfers", NULL);
803 else
804 sq(sk, 0, L"200", L"%%i", pt->id, L"%%i", pt->dir,
805 L"%%i", pt->state, pt->peerid,
806 (pt->peernick == NULL)?L"":(pt->peernick),
807 (pt->path == NULL)?L"":(pt->path),
808 L"%%i", pt->size, L"%%i", pt->curpos,
809 (pt->hash == NULL)?L"":unparsehash(pt->hash),
810 NULL);
811}
812
813static void cmd_cancel(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
814{
815 struct transfer *transfer;
816
817 haveargs(2);
818 havepriv(PERM_TRANS);
819 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
820 {
821 sq(sk, 0, L"512", L"No such transfer", NULL);
822 return;
823 }
824 if((transfer->dir == TRNSD_UP) && !(data->userinfo->perms & PERM_TRANSCU))
825 {
826 sq(sk, 0, L"502", L"You are not allowed to cancel uploads", NULL);
827 return;
828 }
829 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
830 {
831 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
832 return;
833 }
834 transfer->close = 1;
835 sq(sk, 0, L"200", L"Transfer cancelled", NULL);
836}
837
838static void cmd_notify(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
839{
840 int i, val;
841
842 if((argc % 2) != 1)
843 {
844 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
845 return;
846 }
847 for(i = 1; i < argc; i += 2)
848 {
849 if(!wcscasecmp(argv[i + 1], L"on"))
850 val = 1;
851 else
852 val = 0;
853 if(!wcscasecmp(argv[i], L"all"))
854 {
855 if(val)
856 data->notify.w = ~0;
857 else
858 data->notify.w = 0;
859 } else if(!wcscasecmp(argv[i], L"fn:chat")) {
860 data->notify.b.fnchat = val;
861 } else if(!wcscasecmp(argv[i], L"fn:act")) {
862 data->notify.b.fnact = val;
863 } else if(!wcscasecmp(argv[i], L"fn:peer")) {
864 data->notify.b.fnpeer = val;
865 } else if(!wcscasecmp(argv[i], L"trans:act")) {
866 data->notify.b.tract = val;
867 } else if(!wcscasecmp(argv[i], L"trans:prog")) {
868 data->notify.b.trprog = val;
869 } else if(!wcscasecmp(argv[i], L"srch:act")) {
870 data->notify.b.srch = val;
871 } else if(!wcscasecmp(argv[i], L"msg")) {
872 data->notify.b.msg = val;
873 }
874 }
875 sq(sk, 0, L"200", L"Notification alteration succeeded", NULL);
876}
877
878static void cmd_sendchat(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
879{
880 struct fnetnode *fn;
881 int public;
882
883 haveargs(5);
884 havepriv(PERM_CHAT);
885 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
886 {
887 sq(sk, 0, L"510", L"No such node", NULL);
888 return;
889 }
890 public = wcstol(argv[2], NULL, 0);
891 if((public != 0) && (public != 1))
892 {
893 sq(sk, 0, L"509", L"Second argument must be 0 or 1", NULL);
894 return;
895 }
896 if(fn->state != FNN_EST)
897 {
898 sq(sk, 0, L"513", L"Hub is in state FNN_EST", NULL);
899 return;
900 }
901 if(fnetsendchat(fn, public, argv[3], argv[4]))
902 {
903 if(errno == ENOTSUP)
904 sq(sk, 0, L"513", L"This network does not support chatting", NULL);
905 else if(errno == EPERM)
906 sq(sk, 0, L"502", L"This node does not allow you to chat", NULL);
907 else if(errno == EILSEQ)
908 sq(sk, 0, L"504", L"This network could not support all the characters in that message", NULL);
909 else
910 sq(sk, 0, L"505", L"Could not chat", NULL);
911 return;
912 }
913 sq(sk, 0, L"200", L"Chat string sent", NULL);
914}
915
916static void cmd_search(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
917{
918 struct search *srch;
919 struct fnetnode *fn;
920 struct sexpr *sexpr;
921 int i;
922
923 haveargs(3);
924 havepriv(PERM_SRCH);
925 srch = newsearch(data->username, NULL);
926 for(i = 1; i < argc; i++)
927 {
928 if(!wcscmp(argv[i], L"all"))
929 {
930 for(fn = fnetnodes; fn != NULL; fn = fn->next)
931 {
932 if(fn->state == FNN_EST)
933 searchaddfn(srch, fn);
934 }
935 i++;
936 break;
937 } else if(!wcscmp(argv[i], L"prio")) {
938 if(++i == argc)
939 {
940 sq(sk, 0, L"501", L"No argument to prio", NULL);
941 freesearch(srch);
942 return;
943 }
944 srch->prio = wcstol(argv[i], NULL, 0);
945 } else if(iswdigit(*argv[i])) {
946 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
947 {
948 sq(sk, 0, L"510", L"No such node", NULL);
949 freesearch(srch);
950 return;
951 }
952 searchaddfn(srch, fn);
953 } else {
954 break;
955 }
956 }
957 if(srch->fnl == NULL)
958 {
959 sq(sk, 0, L"501", L"No fnetnodes to search found on line", NULL);
960 freesearch(srch);
961 return;
962 }
963 if(i == argc)
964 {
965 sq(sk, 0, L"501", L"No search expression found on line", NULL);
966 freesearch(srch);
967 return;
968 }
969 if((sexpr = parsesexpr(argc - i, argv + i)) == NULL)
970 {
971 sq(sk, 0, L"509", L"Could not parse search expression", NULL);
972 freesearch(srch);
973 return;
974 }
975 optsexpr(sexpr);
976 getsexpr(srch->sexpr = sexpr);
977 queuesearch(srch);
978 CBREG(srch, search_eta, srcheta, NULL, NULL);
979 CBREG(srch, search_commit, srchcommit, NULL, NULL);
980 CBREG(srch, search_result, srchres, NULL, NULL);
981 sq(sk, 0, L"200", L"%%i", srch->id, L"%%i", srch->eta - time(NULL), NULL);
982 putsexpr(sexpr);
983}
984
985static void cmd_lssrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
986{
987 struct search *srch, *pt;
988 time_t now;
989
990 havepriv(PERM_SRCH);
991 pt = NULL;
992 now = time(NULL);
993 for(srch = searches; srch != NULL; srch = srch->next)
994 {
995 if(!wcscmp(srch->owner, data->username))
996 {
997 if(pt != NULL)
998 sq(sk, 1, L"200", L"%%i", pt->id, L"%%i", pt->state, L"%%i", pt->eta - now, L"%%i", pt->numres, NULL);
999 pt = srch;
1000 }
1001 }
1002 if(pt == NULL)
1003 sq(sk, 0, L"201", L"No searches", NULL);
1004 else
1005 sq(sk, 0, L"200", L"%%i", pt->id, L"%%i", pt->state, L"%%i", pt->eta - now, L"%%i", pt->numres, NULL);
1006}
1007
1008static void cmd_lssr(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1009{
1010 struct search *srch;
1011 struct srchres *sr;
1012 wchar_t buf[64];
1013
1014 haveargs(2);
1015 havepriv(PERM_SRCH);
1016 if((srch = findsearch(wcstol(argv[1], NULL, 0))) == NULL)
1017 {
1018 sq(sk, 0, L"514", L"No such search", NULL);
1019 return;
1020 }
1021 if(srch->results == NULL)
1022 {
1023 sq(sk, 0, L"201", L"No results", NULL);
1024 } else {
1025 for(sr = srch->results; sr != NULL; sr = sr->next)
1026 {
1027 swprintf(buf, 64, L"%f", sr->time);
1028 sq(sk, (sr->next != NULL)?1:0, L"200", L"%%ls", sr->filename, sr->fnet->name, L"%%ls", sr->peerid, L"%%i", sr->size, L"%%i", sr->slots, L"%%i", (sr->fn == NULL)?-1:(sr->fn->id), buf, L"%%ls", (sr->hash == NULL)?L"":unparsehash(sr->hash), NULL);
1029 }
1030 }
1031}
1032
1033static void cmd_cansrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1034{
1035 struct search *srch;
1036 int i;
1037
1038 haveargs(2);
1039 havepriv(PERM_SRCH);
1040 /* Note - Programmatical user interfaces must only give one
1041 * argument per command, the multiple argument form is only for
1042 * convenience when manually controlling the daemon via
1043 * eg. telnet. The reason is that the return codes aren't clear
1044 * enough for the multiple argument form. */
1045 for(i = 1; i < argc; i++)
1046 {
1047 if((srch = findsearch(wcstol(argv[i], NULL, 0))) == NULL)
1048 {
1049 sq(sk, 0, L"514", L"No such search", NULL);
1050 return;
1051 }
1052 freesearch(srch);
1053 }
1054 sq(sk, 0, L"200", L"Search cancelled", NULL);
1055}
1056
1057static void fcmdread(struct socket *sk, struct uidata *data)
1058{
1059 char *buf;
1060 size_t bufsize;
1061
1062 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
1063 return;
1064 bufcat(data->fcmdbuf, buf, bufsize);
1065 free(buf);
1066}
1067
1068static void fcmderr(struct socket *sk, int err, struct uidata *data)
1069{
1070 wchar_t *wbuf, *p, *p2;
1071
1072 if(err)
1073 {
1074 flog(LOG_WARNING, "error occurred on filtercmd pipe socket: %s", strerror(err));
1075 kill(-data->fcmdpid, SIGHUP);
1076 putsock(data->fcmdsk);
1077 data->fcmdsk = NULL;
1078 if(data->fcmdbuf != NULL)
1079 {
1080 free(data->fcmdbuf);
1081 data->fcmdbuf = NULL;
1082 }
1083 data->fcmdbufsize = data->fcmdbufdata = 0;
1084 sq(data->sk, 0, L"505", L"An error occurred on the pipe to the filtercmd", L"%%s", strerror(err), NULL);
1085 return;
1086 }
1087 putsock(data->fcmdsk);
1088 data->fcmdsk = NULL;
1089 data->fcmdpid = 0;
1090 if(data->fcmdbuf == NULL)
1091 {
1092 wbuf = swcsdup(L"");
1093 } else {
1094 addtobuf(data->fcmdbuf, 0);
1095 wbuf = icmbstowcs(data->fcmdbuf, NULL);
1096 free(data->fcmdbuf);
1097 }
1098 data->fcmdbuf = NULL;
1099 data->fcmdbufsize = data->fcmdbufdata = 0;
1100 if(wbuf == NULL)
1101 {
1102 sq(data->sk, 0, L"504", L"Filtercmd sent data which could not be converted from the local charset", NULL);
1103 return;
1104 }
1105 p = wbuf;
1106 for(p2 = wcschr(p, L'\n'); p2 != NULL; p2 = wcschr(p, L'\n'))
1107 {
1108 *(p2++) = L'\0';
1109 sq(data->sk, (*p2 == L'\0')?0:1, L"200", L"%%ls", p, NULL);
1110 p = p2;
1111 }
1112 if(*p == L'\0')
1113 {
1114 if(p == wbuf)
1115 sq(data->sk, 0, L"201", L"No data returned", NULL);
1116 } else {
1117 sq(data->sk, 0, L"200", L"%%ls", p, NULL);
1118 }
1119 free(wbuf);
1120}
1121
1122static void cmd_filtercmd(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1123{
1124 int i;
1125 pid_t pid;
1126 int pipe;
1127 char **cargv, **pp;
1128 char *filtercmd, *argbuf;
1129 size_t cargvsize, cargvdata;
1130 struct passwd *pwent;
1131
1132 haveargs(2);
1133 havepriv(PERM_TRANS);
1134 if((pwent = getpwuid(data->uid)) == NULL)
1135 {
1136 flog(LOG_WARNING, "no passwd entry for UI user %i", data->uid);
1137 sq(sk, 0, L"505", L"System error - Could not fork session", "Internal error", NULL);
1138 return;
1139 }
1140 if((filtercmd = findfile(icswcstombs(confgetstr("ui", "filtercmd"), NULL, NULL), "dcdl-filtercmd", pwent->pw_dir, 0)) == NULL)
1141 {
1142 flog(LOG_WARNING, "could not find filtercmd executable for user %s", pwent->pw_name);
1143 sq(sk, 0, L"505", L"System error - Could not fork session", L"Could not find filtercmd executable", NULL);
1144 return;
1145 }
1146 cargv = NULL;
1147 cargvsize = cargvdata = 0;
1148 addtobuf(cargv, filtercmd);
1149 for(i = 1; i < argc; i++)
1150 {
1151 if((argbuf = icwcstombs(argv[i], NULL)) == NULL)
1152 {
1153 for(i = 0; i < cargvdata; i++)
1154 free(cargv[i]);
1155 free(cargv);
1156 sq(sk, 0, L"504", L"%Could not convert argument %i into local character set", i, L"%%s", strerror(errno), NULL);
1157 return;
1158 }
1159 addtobuf(cargv, argbuf);
1160 }
1161 addtobuf(cargv, NULL);
1162 if((pid = forksess(data->uid, data->auth, NULL, NULL, FD_FILE, 0, O_RDWR, "/dev/null", FD_PIPE, 1, O_RDONLY, &pipe, FD_FILE, 2, O_RDWR, "/dev/null", FD_END)) < 0)
1163 {
1164 flog(LOG_WARNING, "could not fork session in filtercmd: %s", strerror(errno));
1165 sq(sk, 0, L"505", L"System error - Could not fork session", L"%%s", strerror(errno), NULL);
1166 return;
1167 }
1168 if(pid == 0)
1169 {
1170 execv(filtercmd, cargv);
1171 flog(LOG_WARNING, "could not exec filtercmd %s: %s", filtercmd, strerror(errno));
1172 exit(127);
1173 }
1174 for(pp = cargv; *pp; pp++)
1175 free(*pp);
1176 free(cargv);
1177 data->fcmdsk = wrapsock(pipe);
1178 data->fcmdpid = pid;
1179 if(data->fcmdbuf != NULL)
1180 {
1181 free(data->fcmdbuf);
1182 data->fcmdbuf = NULL;
1183 }
1184 data->fcmdbufsize = data->fcmdbufdata = 0;
1185 data->fcmdsk->data = data;
1186 data->fcmdsk->readcb = (void (*)(struct socket *, void *))fcmdread;
1187 data->fcmdsk->errcb = (void (*)(struct socket *, int, void *))fcmderr;
1188}
1189
1190static void cmd_lstrarg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1191{
1192 struct transfer *transfer;
1193 struct wcspair *ta;
1194
1195 haveargs(2);
1196 havepriv(PERM_TRANS);
1197 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
1198 {
1199 sq(sk, 0, L"512", L"No such transfer", NULL);
1200 return;
1201 }
1202 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
1203 {
1204 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
1205 return;
1206 }
1207 if(transfer->args == NULL)
1208 {
1209 sq(sk, 0, L"201", L"Transfer has no arguments", NULL);
1210 } else {
1211 for(ta = transfer->args; ta != NULL; ta = ta->next)
1212 sq(sk, ta->next != NULL, L"200", L"%%ls", ta->key, L"%%ls", ta->val, NULL);
1213 }
1214}
1215
1216static void cmd_hashstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1217{
1218 struct sharecache *node;
1219 int total, hashed;
1220
1221 total = hashed = 0;
1222 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1223 {
1224 if(node->f.b.type == FILE_REG)
1225 {
1226 total++;
1227 if(node->f.b.hastth)
1228 hashed++;
1229 }
1230 }
1231 sq(sk, 0, L"200", L"%%i", total, L"tth", L"%%i", hashed, NULL);
1232}
1233
1234static void cmd_transstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1235{
1236 wchar_t *buf1, *buf2;
1237
1238 havepriv(PERM_TRANS);
1239 buf1 = swprintf2(L"%lli", bytesdownload);
1240 buf2 = swprintf2(L"%lli", bytesupload);
1241 sq(sk, 0, L"200", L"down", L"%%ls", buf1, L"up", L"%%ls", buf2, NULL);
1242 free(buf1);
1243 free(buf2);
1244}
1245
1246static void cmd_register(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1247{
1248 struct uidata *d2;
1249
1250 haveargs(2);
1251 if(data->userinfo == NULL) {
1252 sq(sk, 0, L"502", L"Must be logged in", NULL);
1253 return;
1254 }
1255 if(argv[1][0] == L'#') {
1256 sq(sk, 0, L"509", L"Name must not begin with a hash sign", NULL);
1257 return;
1258 }
1259 for(d2 = actives; d2 != NULL; d2 = d2->next) {
1260 if((d2 != data) && (d2->userinfo == data->userinfo) && d2->regname && !wcscmp(d2->regname, argv[1])) {
1261 sq(sk, 0, L"516", L"Name already in use", NULL);
1262 return;
1263 }
1264 }
1265 if(data->regname != NULL)
1266 free(data->regname);
1267 data->regname = swcsdup(argv[1]);
1268 sq(sk, 0, L"200", L"Registered", NULL);
1269}
1270
1271static void cmd_sendmsg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1272{
1273 int i, rcptid;
1274 struct uidata *rcpt;
1275 wchar_t *myname;
1276 struct notif *notif;
1277
1278 haveargs(2);
1279 if(data->userinfo == NULL) {
1280 sq(sk, 0, L"502", L"Must be logged in", NULL);
1281 return;
1282 }
1283 if(argv[1][0] == L'#') {
1284 rcptid = wcstol(argv[1] + 1, NULL, 0);
1285 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
1286 if((rcpt->userinfo == data->userinfo) && (rcpt->id == rcptid))
1287 break;
1288 }
1289 } else {
1290 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
1291 if((rcpt->userinfo == data->userinfo) && rcpt->regname && !wcscmp(rcpt->regname, argv[1]))
1292 break;
1293 }
1294 }
1295 if(rcpt == NULL) {
1296 sq(sk, 0, L"517", L"No such recipient", NULL);
1297 return;
1298 }
1299 if(!rcpt->notify.b.msg) {
1300 sq(sk, 0, L"518", L"Recipient not listening for messages", NULL);
1301 return;
1302 }
1303 if(data->regname != NULL)
1304 myname = swcsdup(data->regname);
1305 else
1306 myname = swprintf2(L"#%i", data->id);
1307 notif = newnotif(rcpt, 640, NOTIF_STR, myname, NOTIF_END);
1308 for(i = 2; i < argc; i++)
1309 notifappend(notif, NOTIF_STR, argv[i], NOTIF_END);
1310 sq(sk, 0, L"200", L"Message sent", NULL);
1311}
1312
1313static void cmd_uptime(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1314{
1315 sq(sk, 0, L"200", L"%%i", time(NULL) - starttime, NULL);
1316}
1317
1318#undef haveargs
1319#undef havepriv
1320
1321/*
1322 * Reserved command numbers for nameless commands:
1323 * 0: Issued when a client has connected
1324 * 1: Issued when a named command couldn't be found
1325 */
1326
1327static struct command commands[] =
1328{
1329 {NULL, cmd_connect},
1330 {NULL, cmd_notfound},
1331 {L"shutdown", cmd_shutdown},
1332 {L"quit", cmd_quit},
1333 {L"lsauth", cmd_lsauth},
1334 {L"login", cmd_login},
1335 {L"pass", cmd_pass},
1336 {L"cnct", cmd_fnetconnect},
1337 {L"lsnodes", cmd_lsnodes},
1338 {L"dcnct", cmd_disconnect},
1339 {L"lspa", cmd_lspa},
1340 {L"lspeers", cmd_lspeers},
1341 {L"download", cmd_download},
1342 {L"lstrans", cmd_lstrans},
1343 {L"cancel", cmd_cancel},
1344 {L"notify", cmd_notify},
1345 {L"sendchat", cmd_sendchat},
1346 {L"search", cmd_search},
1347 {L"lssrch", cmd_lssrch},
1348 {L"lssr", cmd_lssr},
1349 {L"cansrch", cmd_cansrch},
1350 {L"filtercmd", cmd_filtercmd},
1351 {L"lstrarg", cmd_lstrarg},
1352 {L"hashstatus", cmd_hashstatus},
1353 {L"transstatus", cmd_transstatus},
1354 {L"register", cmd_register},
1355 {L"sendmsg", cmd_sendmsg},
1356 {L"uptime", cmd_uptime},
1357 {NULL, NULL}
1358};
1359
1360static void freequeuecmd(struct qcommand *qcmd)
1361{
1362 int i;
1363
1364 if(qcmd->argv != NULL)
1365 {
1366 for(i = 0; i < qcmd->argc; i++)
1367 free(qcmd->argv[i]);
1368 free(qcmd->argv);
1369 }
1370 free(qcmd);
1371}
1372
1373static struct qcommand *unlinkqcmd(struct uidata *data)
1374{
1375 struct qcommand *qcmd;
1376
1377 qcmd = data->queue;
1378 if(qcmd != NULL)
1379 {
1380 data->queue = qcmd->next;
1381 if(qcmd == data->queuelast)
1382 data->queuelast = qcmd->next;
1383 }
1384 return(qcmd);
1385}
1386
1387static void notifappendv(struct notif *notif, va_list args)
1388{
1389 int dt, ca;
1390
1391 while((dt = va_arg(args, int)) != NOTIF_END)
1392 {
1393 ca = notif->argc;
1394 notif->argv = realloc(notif->argv, sizeof(*notif->argv) * ++notif->argc);
1395 notif->argv[ca].dt = dt;
1396 switch(dt)
1397 {
1398 case NOTIF_INT:
1399 case NOTIF_ID:
1400 notif->argv[ca].d.n = va_arg(args, int);
1401 break;
1402 case NOTIF_STR:
1403 notif->argv[ca].d.s = wcsdup(va_arg(args, wchar_t *));
1404 break;
1405 case NOTIF_FLOAT:
1406 notif->argv[ca].d.d = va_arg(args, double);
1407 break;
1408 }
1409 }
1410}
1411
1412static void notifappend(struct notif *notif, ...)
1413{
1414 va_list args;
1415
1416 va_start(args, notif);
1417 notifappendv(notif, args);
1418 va_end(args);
1419}
1420
1421static struct notif *newnotif(struct uidata *data, int code, ...)
1422{
1423 struct notif *notif;
1424 va_list args;
1425
1426 notif = smalloc(sizeof(*notif));
1427 memset(notif, 0, sizeof(*notif));
1428 notif->rlimit = 0.0;
1429 notif->ui = data;
1430 notif->code = code;
1431 va_start(args, code);
1432 notifappendv(notif, args);
1433 va_end(args);
1434 notif->next = NULL;
1435 notif->prev = data->lnotif;
1436 if(data->lnotif != NULL)
1437 data->lnotif->next = notif;
1438 else
1439 data->fnotif = notif;
1440 data->lnotif = notif;
1441 return(notif);
1442}
1443
1444static void freenotif(struct notif *notif)
1445{
1446 int i;
1447
1448 if(notif->next != NULL)
1449 notif->next->prev = notif->prev;
1450 if(notif->prev != NULL)
1451 notif->prev->next = notif->next;
1452 if(notif == notif->ui->fnotif)
1453 notif->ui->fnotif = notif->next;
1454 if(notif == notif->ui->lnotif)
1455 notif->ui->lnotif = notif->prev;
1456 if(notif->exptimer != NULL)
1457 canceltimer(notif->exptimer);
1458 for(i = 0; i < notif->argc; i++)
1459 {
1460 if(notif->argv[i].dt == NOTIF_STR)
1461 free(notif->argv[i].d.s);
1462 }
1463 if(notif->argv != NULL)
1464 free(notif->argv);
1465 free(notif);
1466}
1467
1468static void notifexpire(int cancelled, struct notif *notif)
1469{
1470 notif->exptimer = NULL;
1471 if(!cancelled)
1472 freenotif(notif);
1473}
1474
1475static struct notif *findnotif(struct notif *notif, int dir, int state, int code, int id)
1476{
1477 int i, cont;
1478
1479 for(; notif != NULL; notif = (dir?notif->next:notif->prev))
1480 {
1481 if((notif->code == code) && ((state < 0) || (state == notif->state)))
1482 {
1483 cont = 0;
1484 if(id >= 0)
1485 {
1486 for(i = 0; i < notif->argc; i++)
1487 {
1488 if((notif->argv[i].dt == NOTIF_ID) && (notif->argv[i].d.n != id))
1489 {
1490 cont = 1;
1491 break;
1492 }
1493 }
1494 }
1495 if(cont)
1496 continue;
1497 break;
1498 }
1499 }
1500 return(notif);
1501}
1502
1503static void freeuidata(struct uidata *data)
1504{
1505 int i;
1506 struct qcommand *qcmd;
1507
1508 if(data->next != NULL)
1509 data->next->prev = data->prev;
1510 if(data->prev != NULL)
1511 data->prev->next = data->next;
1512 if(data == actives)
1513 actives = data->next;
1514 data->sk->readcb = NULL;
1515 data->sk->errcb = NULL;
1516 putsock(data->sk);
1517 while((qcmd = unlinkqcmd(data)) != NULL)
1518 freequeuecmd(qcmd);
1519 iconv_close(data->ichandle);
1520 if(data->cw != NULL)
1521 free(data->cw);
1522 if(data->cb != NULL)
1523 free(data->cb);
1524 if(data->argv != NULL)
1525 {
1526 for(i = 0; i < data->argc; i++)
1527 free(data->argv[i]);
1528 free(data->argv);
1529 }
1530 if(data->auth != NULL)
1531 authputhandle(data->auth);
1532 if(data->regname != NULL)
1533 free(data->regname);
1534 if(data->username != NULL)
1535 {
1536 if(data->userinfo != NULL)
1537 flog(LOG_INFO, "%ls logged out", data->username);
1538 free(data->username);
1539 }
1540 free(data->inbuf);
1541 while(data->fnotif != NULL)
1542 freenotif(data->fnotif);
1543 if(data->fcmdbuf != NULL)
1544 free(data->fcmdbuf);
1545 if(data->fcmdpid != 0)
1546 kill(-data->fcmdpid, SIGHUP);
1547 if(data->fcmdsk != NULL)
1548 putsock(data->fcmdsk);
1549 free(data);
1550}
1551
1552static void queuecmd(struct uidata *data, struct command *cmd, int argc, wchar_t **argv)
1553{
1554 struct qcommand *new;
1555
1556 new = smalloc(sizeof(*new));
1557 new->cmd = cmd;
1558 new->argc = argc;
1559 new->argv = argv;
1560 new->next = NULL;
1561 if(data->queuelast != NULL)
1562 data->queuelast->next = new;
1563 data->queuelast = new;
1564 if(data->queue == NULL)
1565 data->queue = new;
1566}
1567
1568static struct uidata *newuidata(struct socket *sk)
1569{
1570 struct uidata *data;
1571 static int curid = 0;
1572
1573 data = smalloc(sizeof(*data));
1574 memset(data, 0, sizeof(*data));
1575 data->id = curid++;
1576 data->sk = sk;
1577 getsock(sk);
1578 data->inbuf = smalloc(1024);
1579 data->uid = -1;
1580 if((data->ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1)
1581 {
1582 flog(LOG_CRIT, "iconv cannot handle UTF-8: %s", strerror(errno));
1583 return(NULL);
1584 }
1585 data->next = actives;
1586 data->prev = NULL;
1587 if(actives != NULL)
1588 actives->prev = data;
1589 actives = data;
1590 return(data);
1591}
1592
1593static void uiread(struct socket *sk, struct uidata *data)
1594{
1595 int ret, done;
1596 char *newbuf;
1597 char *p1, *p2;
1598 wchar_t *porig;
1599 size_t datalen, len2;
1600 struct command *cur;
1601
1602 if(data->indata > 1024)
1603 data->indata = 0;
1604 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
1605 return;
1606 sizebuf(&data->inbuf, &data->inbufsize, data->indata + datalen, 1, 1);
1607 memcpy(data->inbuf + data->indata, newbuf, datalen);
1608 free(newbuf);
1609 data->indata += datalen;
1610 if(data->cb == NULL)
1611 {
1612 data->cb = smalloc(sizeof(wchar_t) * (data->cbsize = 64));
1613 data->cbdata = 0;
1614 data->pp = data->cb;
1615 }
1616 done = 0;
1617 while(!done)
1618 {
1619 if(data->cbsize == data->cbdata)
1620 {
1621 len2 = data->pp - data->cb;
1622 data->cb = srealloc(data->cb, sizeof(wchar_t) * (data->cbsize *= 2));
1623 data->pp = data->cb + len2;
1624 }
1625 p1 = data->inbuf;
1626 p2 = (char *)(porig = (data->cb + data->cbdata));
1627 len2 = sizeof(wchar_t) * (data->cbsize - data->cbdata);
1628 ret = iconv(data->ichandle, &p1, &data->indata, &p2, &len2);
1629 memmove(data->inbuf, p1, data->indata);
1630 /* Just a sanity check */
1631 if(((p2 - ((char *)data->cb)) % sizeof(wchar_t)) != 0)
1632 {
1633 flog(LOG_CRIT, "Aiya! iconv does strange things to our wchar_t's!");
1634 abort();
1635 }
1636 data->cbdata += (((wchar_t *)p2) - porig);
1637 if(ret < 0)
1638 {
1639 switch(errno)
1640 {
1641 case EILSEQ:
1642 /* XXX: Should this really just ignore it? */
1643 data->indata = 0;
1644 done = 1;
1645 break;
1646 case EINVAL:
1647 done = 1;
1648 break;
1649 case E2BIG:
1650 /* Just a sanity check */
1651 if(data->cbsize != data->cbdata)
1652 {
1653 flog(LOG_CRIT, "Aiya! iconv doesn't give us wchar_t's!");
1654 abort();
1655 }
1656 break;
1657 default:
1658 flog(LOG_WARNING, "bug: strange error from iconv in uiread: %s", strerror(errno));
1659 break;
1660 }
1661 } else {
1662 done = 1;
1663 }
1664 }
1665 done = 0;
1666 while(!done && (data->pp - data->cb < data->cbdata))
1667 {
1668 switch(data->ps)
1669 {
1670 case 0:
1671 if(iswspace(*data->pp))
1672 {
1673 if(*data->pp == L'\r')
1674 {
1675 if(data->pp == data->cb + data->cbdata - 1)
1676 {
1677 done = 1;
1678 break;
1679 }
1680 if(*(++data->pp) == L'\n')
1681 {
1682 if((data->argv != NULL) && (data->argv[0] != NULL))
1683 {
1684 for(cur = commands; cur->handler != NULL; cur++)
1685 {
1686 if(cur->name == NULL)
1687 continue;
1688 if(!wcscasecmp(cur->name, data->argv[0]))
1689 {
1690 queuecmd(data, cur, data->argc, data->argv);
1691 break;
1692 }
1693 }
1694 if(cur->handler == NULL)
1695 queuecmd(data, &commands[1], data->argc, data->argv);
1696 } else {
1697 queuecmd(data, &commands[1], data->argc, data->argv);
1698 }
1699 data->argv = NULL;
1700 data->args = 0;
1701 data->argc = 0;
1702 wmemmove(data->cb, data->pp, data->cbdata -= (data->pp - data->cb));
1703 data->pp = data->cb;
1704 } else {
1705 data->pp++;
1706 }
1707 } else {
1708 data->pp++;
1709 }
1710 } else {
1711 data->ps = 1;
1712 data->cwdata = 0;
1713 }
1714 break;
1715 case 1:
1716 if(iswspace(*data->pp))
1717 {
1718 addtobuf(data->cw, L'\0');
1719 sizebuf(&data->argv, &data->args, data->argc + 1, sizeof(*data->argv), 1);
1720 data->argv[data->argc++] = data->cw;
1721 data->cw = NULL;
1722 data->cwsize = 0;
1723 data->cwdata = 0;
1724 data->ps = 0;
1725 } else if(*data->pp == L'\"') {
1726 data->ps = 2;
1727 data->pp++;
1728 } else if(*data->pp == L'\\') {
1729 if(data->pp == data->cb + data->cbdata - 1)
1730 {
1731 done = 1;
1732 break;
1733 }
1734 addtobuf(data->cw, *(++data->pp));
1735 data->pp++;
1736 } else {
1737 addtobuf(data->cw, *(data->pp++));
1738 }
1739 break;
1740 case 2:
1741 if(*data->pp == L'\"')
1742 {
1743 data->ps = 1;
1744 } else if(*data->pp == L'\\') {
1745 if(data->pp == data->cb + data->cbdata - 1)
1746 {
1747 done = 1;
1748 break;
1749 }
1750 addtobuf(data->cw, *(++(data->pp)));
1751 } else {
1752 addtobuf(data->cw, *data->pp);
1753 }
1754 data->pp++;
1755 break;
1756 }
1757 }
1758}
1759
1760static void uierror(struct socket *sk, int err, struct uidata *data)
1761{
1762 if(err)
1763 flog(LOG_WARNING, "error occurred on UI socket: %s", strerror(err));
1764 freeuidata(data);
1765}
1766
1767static void uiaccept(struct socket *sk, struct socket *newsk, void *data)
1768{
1769 struct uidata *uidata;
1770
1771 newsk->data = uidata = newuidata(newsk);
1772 socksettos(newsk, confgetint("ui", "uitos"));
1773 if(uidata == NULL)
1774 return;
1775 newsk->errcb = (void (*)(struct socket *, int, void *))uierror;
1776 newsk->readcb = (void (*)(struct socket *, void *))uiread;
1777 queuecmd(uidata, &commands[0], 0, NULL);
1778}
1779
1780static int srcheta(struct search *srch, void *uudata)
1781{
1782 struct uidata *data;
1783
1784 for(data = actives; data != NULL; data = data->next)
1785 {
1786 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1787 newnotif(data, 620, NOTIF_ID, srch->id, NOTIF_INT, srch->eta - time(NULL), NOTIF_END);
1788 }
1789 return(0);
1790}
1791
1792static int srchcommit(struct search *srch, void *uudata)
1793{
1794 struct uidata *data;
1795
1796 for(data = actives; data != NULL; data = data->next)
1797 {
1798 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1799 newnotif(data, 621, NOTIF_ID, srch->id, NOTIF_END);
1800 }
1801 return(0);
1802}
1803
1804static int srchres(struct search *srch, struct srchres *sr, void *uudata)
1805{
1806 struct uidata *data;
1807
1808 for(data = actives; data != NULL; data = data->next)
1809 {
1810 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1811 {
1812 newnotif(data, 622, NOTIF_ID, srch->id, NOTIF_STR, sr->filename, NOTIF_STR, sr->fnet->name, NOTIF_STR, sr->peerid, NOTIF_INT, sr->size,
1813 NOTIF_INT, sr->slots, NOTIF_INT, (sr->fn == NULL)?-1:(sr->fn->id), NOTIF_FLOAT, sr->time, NOTIF_STR, (sr->hash == NULL)?L"":unparsehash(sr->hash), NOTIF_END);
1814 }
1815 }
1816 return(0);
1817}
1818
1819static int recvchat(struct fnetnode *fn, int public, wchar_t *name, wchar_t *peer, wchar_t *string, void *uudata)
1820{
1821 struct uidata *data;
1822
1823 for(data = actives; data != NULL; data = data->next)
1824 {
1825 if(haspriv(data, PERM_CHAT) && data->notify.b.fnchat)
1826 newnotif(data, 600, NOTIF_ID, fn->id, NOTIF_INT, public, NOTIF_STR, name, NOTIF_STR, peer, NOTIF_STR, string, NOTIF_END);
1827 }
1828 return(0);
1829}
1830
1831static int fnactive(struct fnetnode *fn, wchar_t *attrib, void *uudata)
1832{
1833 struct uidata *data;
1834 struct notif *notif;
1835
1836 if(!wcscmp(attrib, L"state"))
1837 {
1838 for(data = actives; data != NULL; data = data->next)
1839 {
1840 if(data->notify.b.fnact)
1841 newnotif(data, 601, NOTIF_ID, fn->id, NOTIF_INT, fn->state, NOTIF_END);
1842 }
1843 } else if(!wcscmp(attrib, L"name")) {
1844 for(data = actives; data != NULL; data = data->next)
1845 {
1846 if(data->notify.b.fnact)
1847 newnotif(data, 602, NOTIF_ID, fn->id, NOTIF_STR, fn->name, NOTIF_END);
1848 }
1849 } else if(!wcscmp(attrib, L"numpeers")) {
1850 for(data = actives; data != NULL; data = data->next)
1851 {
1852 if(data->notify.b.fnact)
1853 {
1854 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 605, fn->id)) != NULL)
1855 notif->argv[1].d.n = fn->numpeers;
1856 else
1857 newnotif(data, 605, NOTIF_ID, fn->id, NOTIF_INT, fn->numpeers, NOTIF_END)->rlimit = 0.5;
1858 }
1859 }
1860 }
1861 return(0);
1862}
1863
1864static int fnunlink(struct fnetnode *fn, void *uudata)
1865{
1866 struct uidata *data;
1867
1868 for(data = actives; data != NULL; data = data->next)
1869 {
1870 if(data->notify.b.fnact)
1871 newnotif(data, 603, NOTIF_ID, fn->id, NOTIF_END);
1872 }
1873 return(0);
1874}
1875
1876static int peernew(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1877{
1878 struct uidata *data;
1879
1880 for(data = actives; data != NULL; data = data->next)
1881 {
1882 if(data->notify.b.fnpeer)
1883 newnotif(data, 630, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1884 }
1885 return(0);
1886}
1887
1888static int peerdel(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1889{
1890 struct uidata *data;
1891
1892 for(data = actives; data != NULL; data = data->next)
1893 {
1894 if(data->notify.b.fnpeer)
1895 newnotif(data, 631, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_END);
1896 }
1897 return(0);
1898}
1899
1900static int peerchange(struct fnetnode *fn, struct fnetpeer *peer, struct fnetpeerdi *di, void *uudata)
1901{
1902 struct uidata *data;
1903 struct notif *notif;
1904 wchar_t buf[32];
1905
1906 for(data = actives; data != NULL; data = data->next)
1907 {
1908 if(data->notify.b.fnpeer)
1909 {
1910 for(notif = data->fnotif; notif != NULL; notif = notif->next)
1911 {
1912 if((notif->code == 632) && (notif->state == NOTIF_PEND) && (notif->argv[0].d.n == fn->id) && !wcscmp(notif->argv[1].d.s, peer->id))
1913 break;
1914 }
1915 if(notif == NULL)
1916 notif = newnotif(data, 632, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1917 notifappend(notif, NOTIF_STR, di->datum->id, NOTIF_INT, di->datum->datatype, NOTIF_END);
1918 switch(di->datum->datatype)
1919 {
1920 case FNPD_INT:
1921 notifappend(notif, NOTIF_INT, di->data.num, NOTIF_END);
1922 break;
1923 case FNPD_STR:
1924 notifappend(notif, NOTIF_STR, di->data.str, NOTIF_END);
1925 break;
1926 case FNPD_LL:
1927 swprintf(buf, sizeof(buf) / sizeof(*buf), L"%lli", di->data.lnum);
1928 notifappend(notif, NOTIF_STR, buf, NOTIF_END);
1929 break;
1930 }
1931 }
1932 }
1933 return(0);
1934}
1935
1936static int newfnetnode(struct fnetnode *fn, void *uudata)
1937{
1938 struct uidata *data;
1939
1940 for(data = actives; data != NULL; data = data->next)
1941 {
1942 if(data->notify.b.fnact)
1943 newnotif(data, 604, NOTIF_ID, fn->id, NOTIF_STR, fn->fnet->name, NOTIF_END);
1944 }
1945 CBREG(fn, fnetnode_ac, fnactive, NULL, NULL);
1946 CBREG(fn, fnetnode_chat, recvchat, NULL, NULL);
1947 CBREG(fn, fnetnode_unlink, fnunlink, NULL, NULL);
1948 CBREG(fn, fnetpeer_new, peernew, NULL, NULL);
1949 CBREG(fn, fnetpeer_del, peerdel, NULL, NULL);
1950 CBREG(fn, fnetpeer_chdi, peerchange, NULL, NULL);
1951 return(0);
1952}
1953
1954static int transferchattr(struct transfer *transfer, wchar_t *attrib, void *uudata)
1955{
1956 struct uidata *data;
1957
1958 if(!wcscmp(attrib, L"state"))
1959 {
1960 for(data = actives; data != NULL; data = data->next)
1961 {
1962 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1963 newnotif(data, 611, NOTIF_ID, transfer->id, NOTIF_INT, transfer->state, NOTIF_END);
1964 }
1965 } else if(!wcscmp(attrib, L"nick")) {
1966 for(data = actives; data != NULL; data = data->next)
1967 {
1968 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1969 newnotif(data, 612, NOTIF_ID, transfer->id, NOTIF_STR, transfer->peernick, NOTIF_END);
1970 }
1971 } else if(!wcscmp(attrib, L"size")) {
1972 for(data = actives; data != NULL; data = data->next)
1973 {
1974 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1975 newnotif(data, 613, NOTIF_ID, transfer->id, NOTIF_INT, transfer->size, NOTIF_END);
1976 }
1977 } else if(!wcscmp(attrib, L"error")) {
1978 for(data = actives; data != NULL; data = data->next)
1979 {
1980 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1981 newnotif(data, 614, NOTIF_ID, transfer->id, NOTIF_INT, transfer->error, NOTIF_END);
1982 }
1983 } else if(!wcscmp(attrib, L"path")) {
1984 for(data = actives; data != NULL; data = data->next)
1985 {
1986 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1987 newnotif(data, 616, NOTIF_ID, transfer->id, NOTIF_STR, transfer->path, NOTIF_END);
1988 }
1989 } else if(!wcscmp(attrib, L"hash")) {
1990 for(data = actives; data != NULL; data = data->next)
1991 {
1992 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1993 newnotif(data, 618, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->hash == NULL)?L"":unparsehash(transfer->hash), NOTIF_END);
1994 }
1995 }
1996 return(0);
1997}
1998
1999static int transferprog(struct transfer *transfer, void *uudata)
2000{
2001 struct uidata *data;
2002 struct notif *notif;
2003
2004 for(data = actives; data != NULL; data = data->next)
2005 {
2006 if(haspriv(data, PERM_TRANS) && data->notify.b.trprog && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2007 {
2008 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 615, transfer->id)) != NULL)
2009 notif->argv[1].d.n = transfer->curpos;
2010 else
2011 newnotif(data, 615, NOTIF_ID, transfer->id, NOTIF_INT, transfer->curpos, NOTIF_END)->rlimit = 0.5;
2012 }
2013 }
2014 return(0);
2015}
2016
2017static int transferdestroyed(struct transfer *transfer, void *uudata)
2018{
2019 struct uidata *data;
2020
2021 for(data = actives; data != NULL; data = data->next)
2022 {
2023 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2024 newnotif(data, 617, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->exitstatus == NULL)?L"":(transfer->exitstatus), NOTIF_END);
2025 }
2026 return(0);
2027}
2028
2029static int newtransfernotify(struct transfer *transfer, void *uudata)
2030{
2031 struct uidata *data;
2032
2033 for(data = actives; data != NULL; data = data->next)
2034 {
2035 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2036 newnotif(data, 610, NOTIF_ID, transfer->id, NOTIF_INT, transfer->dir, NOTIF_STR, transfer->peerid, NOTIF_STR, (transfer->path == NULL)?L"":transfer->path, NOTIF_END);
2037 }
2038 CBREG(transfer, trans_ac, transferchattr, NULL, NULL);
2039 CBREG(transfer, trans_p, transferprog, NULL, NULL);
2040 CBREG(transfer, trans_destroy, transferdestroyed, NULL, NULL);
2041 return(0);
2042}
2043
2044static struct uiuser *newuser(wchar_t *name, unsigned long perms)
2045{
2046 struct uiuser *new;
2047
2048 new = smalloc(sizeof(*new));
2049 new->used = 0;
2050 new->name = swcsdup(name);
2051 new->perms = perms;
2052 new->delete = 0;
2053 new->next = users;
2054 new->prev = NULL;
2055 if(users != NULL)
2056 users->prev = new;
2057 users = new;
2058 return(new);
2059}
2060
2061static void freeuser(struct uiuser *user)
2062{
2063 if(user->next != NULL)
2064 user->next->prev = user->prev;
2065 if(user->prev != NULL)
2066 user->prev->next = user->next;
2067 if(user == users)
2068 users = user->next;
2069 free(user->name);
2070 free(user);
2071}
2072
2073static int conf_user(int argc, wchar_t **argv)
2074{
2075 int i, perms, permmod;
2076 struct uiuser *user;
2077 wchar_t *p;
2078
2079 if(argc < 3)
2080 {
2081 flog(LOG_WARNING, "not enough arguments given for user command");
2082 return(1);
2083 }
2084 perms = 0;
2085 for(i = 2; i < argc; i++)
2086 {
2087 if(!iswalpha(argv[i][0]))
2088 p = argv[i] + 1;
2089 else
2090 p = argv[i];
2091 if(!wcscmp(p, L"disallow"))
2092 permmod = PERM_DISALLOW;
2093 if(!wcscmp(p, L"admin"))
2094 permmod = PERM_ADMIN;
2095 if(!wcscmp(p, L"fnetctl"))
2096 permmod = PERM_FNETCTL;
2097 if(!wcscmp(p, L"trans"))
2098 permmod = PERM_TRANS;
2099 if(!wcscmp(p, L"transcu"))
2100 permmod = PERM_TRANSCU;
2101 if(!wcscmp(p, L"chat"))
2102 permmod = PERM_CHAT;
2103 if(!wcscmp(p, L"srch"))
2104 permmod = PERM_SRCH;
2105 if(!wcscmp(p, L"all"))
2106 permmod = ~0;
2107 if(argv[i][0] == L'-')
2108 perms &= ~permmod;
2109 else
2110 perms |= permmod;
2111 }
2112 if((user = finduser(argv[1])) == NULL)
2113 {
2114 newuser(argv[1], perms);
2115 } else {
2116 user->delete = 0;
2117 user->perms = perms;
2118 }
2119 return(0);
2120}
2121
2122static void preinit(int hup)
2123{
2124 struct uiuser *user;
2125
2126 if(!hup)
2127 {
2128 newuser(L"default", 0);
2129 } else {
2130 for(user = users; user != NULL; user = user->next)
2131 {
2132 if(!wcscmp(user->name, L"default"))
2133 user->delete = 1;
2134 }
2135 }
2136}
2137
2138static int portupdate(struct configvar *var, void *uudata)
2139{
2140 struct socket *newsock;
2141
2142 if((uisocket = netcstcplisten(var->val.num, 1, uiaccept, NULL)) == NULL)
2143 {
2144 flog(LOG_WARNING, "could not create new UI socket, reverting to old: %s", strerror(errno));
2145 return(0);
2146 }
2147 if(uisocket != NULL)
2148 putsock(uisocket);
2149 uisocket = newsock;
2150 return(0);
2151}
2152
2153static int init(int hup)
2154{
2155 struct uiuser *user, *next;
2156
2157 if(hup)
2158 {
2159 for(user = users; user != NULL; user = next)
2160 {
2161 next = user->next;
2162 if(user->delete)
2163 freeuser(user);
2164 }
2165 }
2166 if(!hup)
2167 {
2168 starttime = time(NULL);
2169 if(uisocket != NULL)
2170 putsock(uisocket);
2171 if((uisocket = netcstcplisten(confgetint("ui", "port"), 1, uiaccept, NULL)) == NULL)
2172 {
2173 flog(LOG_CRIT, "could not create UI socket: %s", strerror(errno));
2174 return(1);
2175 }
2176 CBREG(confgetvar("ui", "port"), conf_update, portupdate, NULL, NULL);
2177 GCBREG(newfncb, newfnetnode, NULL);
2178 GCBREG(newtransfercb, newtransfernotify, NULL);
2179 }
2180 return(0);
2181}
2182
2183static int run(void)
2184{
2185 int i, id;
2186 struct uidata *data, *next;
2187 struct qcommand *qcmd;
2188 struct notif *notif, *nnotif;
2189 wchar_t buf[64];
2190
2191 for(data = actives; data != NULL; data = next)
2192 {
2193 next = data->next;
2194 if(data->close)
2195 freeuidata(data);
2196 }
2197 for(data = actives; data != NULL; data = data->next)
2198 {
2199 for(notif = data->fnotif; notif != NULL; notif = nnotif)
2200 {
2201 nnotif = notif->next;
2202 if(notif->state == NOTIF_WAIT)
2203 continue;
2204 id = -1;
2205 for(i = 0; i < notif->argc; i++)
2206 {
2207 if(notif->argv[i].dt == NOTIF_ID)
2208 {
2209 id = notif->argv[i].d.n;
2210 break;
2211 }
2212 }
2213 if(findnotif(notif->prev, 0, -1, notif->code, id) != NULL)
2214 continue;
2215 sq(data->sk, 2, L"%%i", notif->code, NULL);
2216 for(i = 0; i < notif->argc; i++)
2217 {
2218 switch(notif->argv[i].dt)
2219 {
2220 case NOTIF_INT:
2221 case NOTIF_ID:
2222 sq(data->sk, 2, L"%%i", notif->argv[i].d.n, NULL);
2223 break;
2224 case NOTIF_STR:
2225 if(notif->argv[i].d.s[0] == L'%')
2226 sq(data->sk, 2, L"%%s", notif->argv[i].d.s, NULL);
2227 else
2228 sq(data->sk, 2, notif->argv[i].d.s, NULL);
2229 break;
2230 case NOTIF_FLOAT:
2231 swprintf(buf, 64, L"%f", notif->argv[i].d.d);
2232 sq(data->sk, 2, buf, NULL);
2233 break;
2234 }
2235 }
2236 sq(data->sk, 0, NULL);
2237 if(notif->rlimit != 0)
2238 {
2239 notif->state = NOTIF_WAIT;
2240 notif->exptimer = timercallback(ntime() + notif->rlimit, (void (*)(int, void *))notifexpire, notif);
2241 } else {
2242 freenotif(notif);
2243 }
2244 }
2245 if((qcmd = unlinkqcmd(data)) != NULL)
2246 {
2247 qcmd->cmd->handler(data->sk, data, qcmd->argc, qcmd->argv);
2248 freequeuecmd(qcmd);
2249 return(1);
2250 }
2251 }
2252 return(0);
2253}
2254
2255static void terminate(void)
2256{
2257 while(users != NULL)
2258 freeuser(users);
2259}
2260
2261static struct configvar myvars[] =
2262{
2263 /** If true, UI connections will only be accepted from localhost
2264 * addresses (127.0.0.1, ::1 or ::ffff:127.0.0.1). Unless you are
2265 * completely sure that you know what you are doing, never turn
2266 * this off when auth.authless is on. */
2267 {CONF_VAR_BOOL, "onlylocal", {.num = 1}},
2268 /** The port number on which to accept UI client connections. */
2269 {CONF_VAR_INT, "port", {.num = 1500}},
2270 /** The TOS value to use for UI connections (see the TOS VALUES
2271 * section). */
2272 {CONF_VAR_INT, "uitos", {.num = SOCK_TOS_MINDELAY}},
2273 /** The name of the filtercmd script (see the FILES section for
2274 * lookup information). */
2275 {CONF_VAR_STRING, "filtercmd", {.str = L"dc-filtercmd"}},
2276 {CONF_VAR_END}
2277};
2278
2279static struct configcmd mycmds[] =
2280{
2281 {"user", conf_user},
2282 {NULL}
2283};
2284
2285static struct module me =
2286{
2287 .name = "ui",
2288 .conf =
2289 {
2290 .vars = myvars,
2291 .cmds = mycmds
2292 },
2293 .preinit = preinit,
2294 .init = init,
2295 .run = run,
2296 .terminate = terminate
2297};
2298
2299MODULE(me)
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