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