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Plugged a couple of memory leaks.
[doldaconnect.git] / daemon / ui.c
CommitLineData
d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
302a2600 3 * Copyright (C) 2004 Fredrik Tolf <fredrik@dolda2000.com>
d3372da9 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#define _GNU_SOURCE
20#include <unistd.h>
21#include <stdlib.h>
d3372da9 22#include <sys/socket.h>
23#include <netinet/in.h>
24#include <netinet/ip6.h>
504ba854 25#include <arpa/inet.h>
ddb933f1 26#include <sys/un.h>
d3372da9 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>
f9455250 37#include <stdint.h>
d3372da9 38
39#ifdef HAVE_CONFIG_H
40#include <config.h>
41#endif
42#include "conf.h"
43#include "auth.h"
44#include "utils.h"
45#include "net.h"
46#include "module.h"
47#include "sysevents.h"
48#include "filenet.h"
49#include "transfer.h"
50#include "search.h"
51#include "client.h"
52
53#define PERM_DISALLOW 1
54#define PERM_ADMIN 2
55#define PERM_FNETCTL 4
56#define PERM_TRANS 8
57#define PERM_TRANSCU 16
58#define PERM_CHAT 32
59#define PERM_SRCH 64
60
61#define NOTIF_END 0
62#define NOTIF_INT 1
63#define NOTIF_STR 2
64#define NOTIF_FLOAT 3
65#define NOTIF_ID 4
dcf7a1a2 66#define NOTIF_OFF 5
d3372da9 67#define NOTIF_PEND 0
68#define NOTIF_WAIT 1
69
70struct uidata;
71
72struct command
73{
74 wchar_t *name;
75 void (*handler)(struct socket *sk, struct uidata *data, int argc, wchar_t **argv);
76};
77
78struct qcommand
79{
80 struct qcommand *next;
81 struct command *cmd;
82 int argc;
83 wchar_t **argv;
84};
85
86struct uiuser
87{
88 struct uiuser *next, *prev;
89 int used;
90 wchar_t *name;
91 unsigned long perms;
92 int delete;
93};
94
95struct notif
96{
97 struct notif *next, *prev;
98 struct uidata *ui;
99 int state;
100 int code;
101 double rlimit;
102 size_t argc;
103 struct timer *exptimer;
104 struct notifarg
105 {
106 int dt;
107 union
108 {
109 int n;
dcf7a1a2 110 off_t o;
d3372da9 111 wchar_t *s;
112 double d;
113 } d;
114 } *argv;
115};
116
117struct uidata
118{
119 struct uidata *next, *prev;
120 struct socket *sk;
121 struct qcommand *queue, *queuelast;
821e3843 122 size_t queuesize;
d3372da9 123 struct authhandle *auth;
124 int close;
125 union
126 {
127 struct
128 {
129 int fnact:1;
130 int fnchat:1;
ba86d49a 131 int fnpeer:1;
d3372da9 132 int tract:1;
133 int trprog:1;
134 int srch:1;
5f151349 135 int msg:1;
d3372da9 136 } b;
137 int w;
138 } notify;
139 wchar_t *username;
140 struct uiuser *userinfo;
5f151349 141 int id;
142 wchar_t *regname;
d3372da9 143 uid_t uid;
144 struct notif *fnotif, *lnotif;
145 char *fcmdbuf;
146 size_t fcmdbufdata, fcmdbufsize;
147 pid_t fcmdpid;
148 struct socket *fcmdsk;
149 /* Read buffer */
150 char *inbuf;
151 size_t inbufsize, indata;
152 /* Wordset storage */
153 wchar_t **argv;
76236762 154 size_t argc, args;
d3372da9 155 /* WCS conversation stuff */
156 wchar_t *cb; /* Conversation buffer */
157 size_t cbsize, cbdata;
158 iconv_t ichandle;
159 /* Parser data */
160 int ps; /* Parser state */
161 wchar_t *pp; /* Current parse pointer */
162 wchar_t *cw; /* Current word (building storage) */
163 size_t cwsize, cwdata;
164};
165
166static int srcheta(struct search *srch, void *uudata);
167static int srchcommit(struct search *srch, void *uudata);
168static int srchres(struct search *srch, struct srchres *sr, void *uudata);
5f151349 169static struct notif *newnotif(struct uidata *data, int code, ...);
170static void notifappend(struct notif *notif, ...);
d3372da9 171
172struct uiuser *users = NULL;
173struct uidata *actives = NULL;
ddb933f1 174struct socket *tcpsocket = NULL;
175struct socket *unixsocket = NULL;
9a64a4f7 176static time_t starttime;
d3372da9 177
178static wchar_t *quoteword(wchar_t *word)
179{
180 wchar_t *wp, *buf, *bp;
181 int dq, numbs, numc;
182
183 dq = 0;
184 numbs = 0;
185 numc = 0;
186 if(*word == L'\0')
187 {
188 dq = 1;
189 } else {
190 for(wp = word; *wp != L'\0'; wp++)
191 {
192 if(!dq && iswspace(*wp))
193 dq = 1;
194 if((*wp == L'\\') || (*wp == L'\"'))
195 numbs++;
196 numc++;
197 }
198 }
199 if(!dq && !numbs)
200 return(NULL);
201 bp = buf = smalloc(sizeof(wchar_t) * (numc + numbs + (dq?2:0) + 1));
202 if(dq)
203 *(bp++) = L'\"';
204 for(wp = word; *wp != L'\0'; wp++)
205 {
206 if((*wp == L'\\') || (*wp == L'\"'))
207 *(bp++) = L'\\';
208 *(bp++) = *wp;
209 }
210 if(dq)
211 *(bp++) = L'\"';
212 *(bp++) = L'\0';
213 return(buf);
214}
215
216static void sq(struct socket *sk, int cont, ...)
217{
218 int num, freepart;
219 va_list al;
f7292a8b 220 char *final, *sarg;
d3372da9 221 wchar_t *buf;
222 wchar_t *part, *tpart;
223 size_t bufsize, bufdata;
224
225 buf = NULL;
226 bufsize = bufdata = 0;
227 num = 0;
228 va_start(al, cont);
229 while((part = va_arg(al, wchar_t *)) != NULL)
230 {
f7292a8b 231 freepart = 0;
d3372da9 232 if(*part == L'%')
233 {
f7292a8b 234 tpart = part + 1;
235 if(!wcscmp(tpart, L"i"))
d3372da9 236 {
f7292a8b 237 freepart = 1;
238 part = swprintf2(L"%i", va_arg(al, int));
dcf7a1a2
FT		 239 } else if(!wcscmp(tpart, L"zi")) {
240 freepart = 1;
241 part = swprintf2(L"%zi", va_arg(al, size_t));
242 } else if(!wcscmp(tpart, L"oi")) {
243 freepart = 1;
244 part = swprintf2(L"%ji", (intmax_t)va_arg(al, off_t));
f7292a8b 245 } else if(!wcscmp(tpart, L"s")) {
246 freepart = 1;
247 part = icmbstowcs(sarg = va_arg(al, char *), NULL);
248 if(part == NULL)
d3372da9 249 {
f7292a8b 250 freepart = 0;
251 part = L"ERROR";
252 flog(LOG_ERR, "could not convert local string to wcs: %s", sarg);
d3372da9 253 }
f7292a8b 254 } else if(!wcscmp(tpart, L"ls")) {
255 part = va_arg(al, wchar_t *);
256 } else if(!wcscmp(tpart, L"ll")) {
257 freepart = 1;
258 part = swprintf2(L"%lli", va_arg(al, long long));
259 } else if(!wcscmp(tpart, L"f")) {
260 freepart = 1;
261 part = swprintf2(L"%f", va_arg(al, double));
262 } else if(!wcscmp(tpart, L"x")) {
263 freepart = 1;
264 part = swprintf2(L"%x", va_arg(al, int));
265 } else {
266 flog(LOG_CRIT, "BUG: unknown type code in sq: %ls", tpart);
267 abort();
d3372da9 268 }
d3372da9 269 }
270 if((tpart = quoteword(part)) != NULL)
271 {
272 if(freepart)
273 free(part);
274 part = tpart;
275 freepart = 1;
276 }
277 if((num > 1) || ((num == 1) && !(cont & 1)))
278 addtobuf(buf, L' ');
279 bufcat(buf, part, wcslen(part));
280 if((num == 0) && (cont & 1))
281 addtobuf(buf, L'-');
282 num++;
283 if(freepart)
284 free(part);
285 }
286 if(cont & 2)
287 bufcat(buf, L" \0", 2);
288 else
289 bufcat(buf, L"\r\n\0", 3);
290 if((final = icwcstombs(buf, "utf-8")) == NULL)
291 {
292 flog(LOG_CRIT, "could not convert \"%ls\" into utf-8: %s", buf, strerror(errno));
293 free(buf);
294 return;
295 }
296 va_end(al);
297 free(buf);
298 sockqueue(sk, final, strlen(final));
299 free(final);
300}
301
302struct uiuser *finduser(wchar_t *name)
303{
304 struct uiuser *user;
305
306 for(user = users; user != NULL; user = user->next)
307 {
308 if(!wcscmp(user->name, name))
309 break;
310 }
311 return(user);
312}
313
314static void logout(struct uidata *data)
315{
316 data->userinfo = NULL;
317 if(data->username != NULL)
318 free(data->username);
319 data->username = NULL;
320 if(data->auth != NULL)
321 authputhandle(data->auth);
322 data->auth = NULL;
323}
324
325static int haspriv(struct uidata *data, int perm)
326{
327 if(data->userinfo == NULL)
328 return(0);
329 if(data->userinfo->perms & perm)
330 return(1);
331 else
332 return(0);
333}
334
335/* Useful macros for the command functions: */
336#define haveargs(n) do { if(argc < n) { sq(sk, 0, L"501", L"Wrong number of arguments", NULL); return; } } while(0)
a9bfddfe 337#define havepriv(p) do { if((data->userinfo == NULL) || ((data->userinfo->perms & (p)) != (p))) { sq(sk, 0, L"502", L"Unauthorized request", L"needed", L"%x", (p), NULL); return; } } while(0)
d3372da9 338
339static void cmd_connect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
340{
341 int valid;
504ba854 342 struct in6_addr mv4lo;
d3372da9 343
344 if(confgetint("ui", "onlylocal"))
345 {
346 switch(sk->remote->sa_family)
347 {
348 case AF_INET:
349 valid = ((struct sockaddr_in *)sk->remote)->sin_addr.s_addr == INADDR_LOOPBACK;
350 break;
351 case AF_INET6:
504ba854 352 inet_pton(AF_INET6, "::ffff:127.0.0.1", &mv4lo);
353 valid = 0;
354 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)))
355 valid = 1;
356 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &mv4lo, sizeof(in6addr_loopback)))
357 valid = 1;
d3372da9 358 break;
ddb933f1 359 case AF_UNIX:
360 valid = 1;
361 break;
d3372da9 362 default:
363 valid = 0;
364 break;
365 }
366 if(!valid)
367 {
368 sq(sk, 0, L"502", L"Only localhost connections allowed to this host", NULL);
369 sk->close = 1;
370 data->close = 1;
371 return;
372 }
373 }
040118de 374 sq(sk, 0, L"201", L"1", L"3", L"Dolda Connect daemon v" VERSION, NULL);
d3372da9 375}
376
377static void cmd_notfound(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
378{
379 if((argv != NULL) && (argv[0] != NULL))
f7292a8b 380 sq(sk, 0, L"500", L"Command not found", NULL);
d3372da9 381 else
382 sq(sk, 0, L"500", L"No command", NULL);
383}
384
385static void cmd_shutdown(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
386{
387 extern volatile int running;
388
389 havepriv(PERM_ADMIN);
390 flog(LOG_NOTICE, "UI shutdown request from %ls, shutting down", data->username);
391 running = 0;
392 sq(sk, 0, L"200", L"Daemon shutting down", NULL);
393}
394
395static void cmd_quit(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
396{
397 sq(sk, 0, L"200", L"Closing connection", NULL);
398 data->close = 1;
399}
400
401static void cmd_lsauth(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
402{
403 struct authmech *mech, *prev;
404
405 prev = NULL;
406 for(mech = mechs; mech != NULL; mech = mech->next)
407 {
3616b334 408 if(mech->enabled && authavailable(mech, sk))
d3372da9 409 {
410 if(prev != NULL)
411 sq(sk, 1, L"200", prev->name, NULL);
412 prev = mech;
413 }
414 }
415 if(prev == NULL)
416 sq(sk, 0, L"201", L"No authentication methods supported", NULL);
417 else
418 sq(sk, 0, L"200", prev->name, NULL);
419}
420
421static void cmd_login(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
422{
423 char *buf;
424 int code;
425 struct passwd *pwd;
426
427 haveargs(3);
428 if(data->username != NULL)
429 {
430 if(data->userinfo != NULL)
431 sq(sk, 0, L"503", L"Already logged in", NULL);
432 else
433 sq(sk, 0, L"503", L"Already logging in", NULL);
434 return;
435 }
436 if((buf = icwcstombs(argv[2], NULL)) == NULL)
437 {
438 sq(sk, 0, L"504", L"Could not convert username to locale charset", NULL);
439 return;
440 }
441 data->username = swcsdup(argv[2]);
442 if((pwd = getpwnam(buf)) == NULL)
443 data->uid = -1;
444 else
445 data->uid = pwd->pw_uid;
446 if((data->auth = initauth(argv[1], buf)) == NULL)
447 {
448 if(errno == ENOENT)
449 sq(sk, 0, L"508", L"No such authentication mechanism", NULL);
450 else
f7292a8b 451 sq(sk, 0, L"505", L"Could not initialize authentication system", L"%s", strerror(errno), NULL);
d3372da9 452 free(buf);
453 logout(data);
454 return;
455 }
456 free(buf);
3616b334 457 switch(authenticate(data->auth, sk, NULL))
d3372da9 458 {
459 case AUTH_SUCCESS:
460 data->userinfo = finduser(data->username);
461 if(data->userinfo == NULL)
462 data->userinfo = finduser(L"default");
463 if(data->uid == -1)
464 {
465 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 466 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 467 logout(data);
468 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
469 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 470 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 471 logout(data);
472 } else {
473 sq(sk, 0, L"200", L"Welcome", NULL);
6c9eee05 474 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
d3372da9 475 }
476 break;
477 case AUTH_DENIED:
f7292a8b 478 sq(sk, 0, L"506", L"Authentication error", L"%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
6c9eee05 479 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 480 logout(data);
481 break;
482 case AUTH_PASS:
483 switch(data->auth->prompt)
484 {
485 case AUTH_PR_AUTO:
486 code = 300;
487 break;
488 case AUTH_PR_NOECHO:
489 code = 301;
490 break;
491 case AUTH_PR_ECHO:
492 code = 302;
493 break;
494 case AUTH_PR_INFO:
495 code = 303;
496 break;
497 case AUTH_PR_ERROR:
498 code = 304;
499 break;
500 }
f7292a8b 501 sq(sk, 0, L"%i", code, data->auth->text, NULL);
d3372da9 502 break;
503 case AUTH_ERR:
f7292a8b 504 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 505 logout(data);
506 break;
507 default:
508 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_login");
f7292a8b 509 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 510 logout(data);
511 break;
512 }
513}
514
515static void cmd_pass(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
516{
517 char *buf;
518 int code;
519
520 haveargs(2);
521 if((buf = icwcstombs(argv[1], NULL)) == NULL)
522 {
523 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
524 return;
525 }
526 if((data->auth == NULL) || (data->userinfo != NULL))
527 {
528 sq(sk, 0, L"507", L"Data not expected", NULL);
529 return;
530 }
3616b334 531 switch(authenticate(data->auth, sk, buf))
d3372da9 532 {
533 case AUTH_SUCCESS:
534 data->userinfo = finduser(data->username);
535 if(data->userinfo == NULL)
536 data->userinfo = finduser(L"default");
537 if(data->uid == -1)
538 {
539 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 540 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 541 logout(data);
542 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
543 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 544 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 545 logout(data);
546 } else {
547 sq(sk, 0, L"200", L"Welcome", NULL);
6c9eee05 548 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
d3372da9 549 }
550 break;
551 case AUTH_DENIED:
f7292a8b 552 sq(sk, 0, L"506", L"Authentication error", L"%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
6c9eee05 553 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 554 logout(data);
555 break;
556 case AUTH_PASS:
557 switch(data->auth->prompt)
558 {
559 case AUTH_PR_AUTO:
560 code = 300;
561 break;
562 case AUTH_PR_NOECHO:
563 code = 301;
564 break;
565 case AUTH_PR_ECHO:
566 code = 302;
567 break;
568 case AUTH_PR_INFO:
569 code = 303;
570 break;
571 case AUTH_PR_ERROR:
572 code = 304;
573 break;
574 }
f7292a8b 575 sq(sk, 0, L"%i", code, data->auth->text, NULL);
d3372da9 576 break;
577 case AUTH_ERR:
f7292a8b 578 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 579 logout(data);
580 break;
581 default:
582 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_pass");
f7292a8b 583 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 584 logout(data);
585 break;
586 }
587 free(buf);
588}
589
590static void cmd_fnetconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
591{
592 int i;
593 char *buf;
594 int err;
595 struct fnetnode *fn;
efc05613 596 struct wcspair *args;
d3372da9 597
598 haveargs(3);
599 havepriv(PERM_FNETCTL);
dd31fcfa 600 for(i = 0, fn = fnetnodes; fn != NULL; i++, fn = fn->next);
601 if((confgetint("fnet", "maxnodes") > 0) && (i >= confgetint("fnet", "maxnodes"))) {
602 sq(sk, 0, L"515", L"Too many fnetnodes connected already", NULL);
603 return;
604 }
d3372da9 605 if((buf = icwcstombs(argv[2], NULL)) == NULL)
606 {
607 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
608 return;
609 }
efc05613 610 args = NULL;
611 for(i = 3; i < argc - 1; i += 2)
612 newwcspair(argv[i], argv[i + 1], &args);
a3a4a3a7 613 fn = fnetinitconnect(argv[1], data->userinfo->name, buf, args);
d3372da9 614 err = errno;
615 free(buf);
616 if(fn == NULL)
617 {
618 if(errno == EPROTONOSUPPORT)
619 sq(sk, 0, L"511", L"No such network name", NULL);
620 else
f7292a8b 621 sq(sk, 0, L"509", L"Could not parse the address", L"%s", strerror(err), NULL);
d3372da9 622 return;
623 }
d3372da9 624 linkfnetnode(fn);
625 fnetsetname(fn, argv[2]);
f7292a8b 626 sq(sk, 0, L"200", L"%i", fn->id, L"Connection under way", NULL);
d3372da9 627 putfnetnode(fn);
d3372da9 628}
629
630static void cmd_lsnodes(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
631{
632 struct fnetnode *fn;
633
634 if(fnetnodes == NULL)
635 {
636 sq(sk, 0, L"201", L"No connected nodes", NULL);
637 return;
638 }
639 for(fn = fnetnodes; fn != NULL; fn = fn->next)
640 {
f7292a8b 641 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);
d3372da9 642 }
643}
644
645static void cmd_disconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
646{
647 struct fnetnode *fn;
648 int i;
649
650 haveargs(2);
651 havepriv(PERM_FNETCTL);
652 /* Note - Programmatical user interfaces must only give one
653 * argument per command, the multiple argument form is only for
654 * convenience when manually controlling the daemon via
655 * eg. telnet. The reason is that the return codes aren't clear
656 * enough for the multiple argument form. */
657 for(i = 1; i < argc; i++)
658 {
659 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
660 {
661 sq(sk, 0, L"510", L"No such node", NULL);
662 return;
663 }
18603153 664 if(wpfind(fn->args, L"locked") && !((data->userinfo->perms & PERM_ADMIN) || !wcscmp(data->userinfo->name, fn->owner)))
665 {
666 sq(sk, 0, L"502", L"This node is locked and you are neither administrator nor its owner", NULL);
667 return;
668 }
d3372da9 669 killfnetnode(fn);
670 unlinkfnetnode(fn);
671 }
672 sq(sk, 0, L"200", L"Node flagged for disconnection", NULL);
673}
674
675static void cmd_lspa(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
676{
677 struct fnetnode *fn;
678 struct fnetpeerdatum *datum;
679
680 haveargs(2);
681 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
682 {
683 sq(sk, 0, L"510", L"No such node", NULL);
684 return;
685 }
686 if(fn->peerdata == NULL)
687 {
688 sq(sk, 0, L"201", L"No data available", NULL);
689 } else {
690 for(datum = fn->peerdata; datum != NULL; datum = datum->next)
f7292a8b 691 sq(sk, (datum->next != NULL)?1:0, L"200", datum->id, L"%i", datum->datatype, NULL);
d3372da9 692 }
693}
694
695static void cmd_lspeers(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
696{
697 int i;
698 struct fnetnode *fn;
0e227c1d 699 struct fnetpeer *peer, *npeer;
d3372da9 700
701 haveargs(2);
702 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
703 {
704 sq(sk, 0, L"510", L"No such node", NULL);
705 return;
706 }
707 if(fn->peers == NULL)
708 {
821e3843 709 sq(sk, 0, L"201", L"No peers available", NULL);
d3372da9 710 } else {
0e227c1d 711 for(peer = btreeiter(fn->peers); peer != NULL; peer = npeer)
d3372da9 712 {
0e227c1d
FT		 713 npeer = btreeiter(NULL);
714 sq(sk, 2 | ((npeer != NULL)?1:0), L"200", L"%ls", peer->id, L"%ls", peer->nick, NULL);
d3372da9 715 for(i = 0; i < peer->dinum; i++)
716 {
717 if(peer->peerdi[i].datum->datatype == FNPD_INT)
f7292a8b 718 sq(sk, 2, peer->peerdi[i].datum->id, L"%i", peer->peerdi[i].data.num, NULL);
d3372da9 719 if(peer->peerdi[i].datum->datatype == FNPD_LL)
f7292a8b 720 sq(sk, 2, peer->peerdi[i].datum->id, L"%ll", peer->peerdi[i].data.lnum, NULL);
d3372da9 721 if((peer->peerdi[i].datum->datatype == FNPD_STR) && (peer->peerdi[i].data.str != NULL))
f7292a8b 722 sq(sk, 2, peer->peerdi[i].datum->id, L"%ls", peer->peerdi[i].data.str, NULL);
d3372da9 723 }
724 sq(sk, 0, NULL);
725 }
726 }
727}
728
729static void cmd_download(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
730{
731 int i;
732 struct fnet *net;
733 struct fnetnode *fn;
734 struct transfer *transfer;
735 struct fnetpeer *peer;
736
737 haveargs(4);
738 if((argc > 5) && ((argc % 2) == 0))
739 {
740 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
741 return;
742 }
743 havepriv(PERM_TRANS);
744 if((*(argv[1]) >= L'0') && (*(argv[1]) <= L'9'))
745 {
746 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
747 {
748 sq(sk, 0, L"510", L"No such node", NULL);
749 return;
750 }
751 net = fn->fnet;
752 } else {
753 fn = NULL;
754 if((net = findfnet(argv[1])) == NULL)
755 {
756 sq(sk, 0, L"511", L"No such network name", NULL);
757 return;
758 }
759 }
760 transfer = newtransfer();
761 authgethandle(transfer->auth = data->auth);
762 transfer->fnet = net;
763 transfer->peerid = swcsdup(argv[2]);
764 transfer->path = swcsdup(argv[3]);
765 transfer->dir = TRNSD_DOWN;
766 transfer->owner = data->uid;
767 if(fn != NULL)
768 {
769 transfer->fn = fn;
770 getfnetnode(fn);
771 linktransfer(transfer);
772 if(((peer = fnetfindpeer(fn, transfer->peerid)) != NULL) && (peer->nick != NULL))
773 transfersetnick(transfer, peer->nick);
774 } else {
775 linktransfer(transfer);
776 }
777 if(argc > 4)
dcf7a1a2 778 transfersetsize(transfer, wcstoll(argv[4], NULL, 0));
d3372da9 779 if(argc > 5)
780 {
781 for(i = 5; i < argc; i += 2)
5123bec0 782 {
783 if(!wcscmp(argv[i], L"hash"))
784 {
a04fc9ff 785 transfersethash(transfer, parsehash(argv[i + 1]));
5123bec0 786 } else {
9ec790e8 787 newwcspair(argv[i], argv[i + 1], &transfer->args);
5123bec0 788 }
789 }
d3372da9 790 }
f7292a8b 791 sq(sk, 0, L"200", L"%i", transfer->id, L"Download queued", NULL);
d3372da9 792 transfersetactivity(transfer, L"create");
793}
794
795static void cmd_lstrans(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
796{
797 struct transfer *transfer, *pt;
798
799 havepriv(PERM_TRANS);
800 pt = NULL;
801 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
802 {
803 if((transfer->dir != TRNSD_DOWN) || (transfer->owner == data->uid))
804 {
805 if(pt != NULL)
f7292a8b 806 sq(sk, 1, L"200", L"%i", pt->id, L"%i", pt->dir,
807 L"%i", pt->state, pt->peerid,
d3372da9 808 (pt->peernick == NULL)?L"":(pt->peernick),
809 (pt->path == NULL)?L"":(pt->path),
dcf7a1a2 810 L"%oi", pt->size, L"%oi", pt->curpos,
5123bec0 811 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 812 NULL);
813 pt = transfer;
814 }
815 }
816 if(pt == NULL)
817 sq(sk, 0, L"201", L"No transfers", NULL);
818 else
f7292a8b 819 sq(sk, 0, L"200", L"%i", pt->id, L"%i", pt->dir,
820 L"%i", pt->state, pt->peerid,
d3372da9 821 (pt->peernick == NULL)?L"":(pt->peernick),
822 (pt->path == NULL)?L"":(pt->path),
dcf7a1a2 823 L"%oi", pt->size, L"%oi", pt->curpos,
5123bec0 824 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 825 NULL);
826}
827
828static void cmd_cancel(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
829{
830 struct transfer *transfer;
831
832 haveargs(2);
833 havepriv(PERM_TRANS);
834 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
835 {
836 sq(sk, 0, L"512", L"No such transfer", NULL);
837 return;
838 }
839 if((transfer->dir == TRNSD_UP) && !(data->userinfo->perms & PERM_TRANSCU))
840 {
841 sq(sk, 0, L"502", L"You are not allowed to cancel uploads", NULL);
842 return;
843 }
844 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
845 {
846 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
847 return;
848 }
849 transfer->close = 1;
850 sq(sk, 0, L"200", L"Transfer cancelled", NULL);
851}
852
4a9a79b3 853static void cmd_reset(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
854{
855 struct transfer *transfer;
856
857 haveargs(2);
858 havepriv(PERM_TRANS);
859 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
860 {
861 sq(sk, 0, L"512", L"No such transfer", NULL);
862 return;
863 }
864 if(transfer->dir == TRNSD_UP)
865 {
866 sq(sk, 0, L"512", L"Only applicable to downloads", NULL);
867 return;
868 }
869 resettransfer(transfer);
870 sq(sk, 0, L"200", L"Transfer reset", NULL);
871}
872
d3372da9 873static void cmd_notify(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
874{
875 int i, val;
876
877 if((argc % 2) != 1)
878 {
879 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
880 return;
881 }
882 for(i = 1; i < argc; i += 2)
883 {
884 if(!wcscasecmp(argv[i + 1], L"on"))
885 val = 1;
886 else
887 val = 0;
888 if(!wcscasecmp(argv[i], L"all"))
889 {
890 if(val)
891 data->notify.w = ~0;
892 else
893 data->notify.w = 0;
894 } else if(!wcscasecmp(argv[i], L"fn:chat")) {
895 data->notify.b.fnchat = val;
896 } else if(!wcscasecmp(argv[i], L"fn:act")) {
897 data->notify.b.fnact = val;
ba86d49a 898 } else if(!wcscasecmp(argv[i], L"fn:peer")) {
899 data->notify.b.fnpeer = val;
d3372da9 900 } else if(!wcscasecmp(argv[i], L"trans:act")) {
901 data->notify.b.tract = val;
902 } else if(!wcscasecmp(argv[i], L"trans:prog")) {
903 data->notify.b.trprog = val;
904 } else if(!wcscasecmp(argv[i], L"srch:act")) {
905 data->notify.b.srch = val;
5f151349 906 } else if(!wcscasecmp(argv[i], L"msg")) {
907 data->notify.b.msg = val;
d3372da9 908 }
909 }
910 sq(sk, 0, L"200", L"Notification alteration succeeded", NULL);
911}
912
913static void cmd_sendchat(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
914{
915 struct fnetnode *fn;
916 int public;
917
918 haveargs(5);
919 havepriv(PERM_CHAT);
920 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
921 {
922 sq(sk, 0, L"510", L"No such node", NULL);
923 return;
924 }
925 public = wcstol(argv[2], NULL, 0);
926 if((public != 0) && (public != 1))
927 {
928 sq(sk, 0, L"509", L"Second argument must be 0 or 1", NULL);
929 return;
930 }
931 if(fn->state != FNN_EST)
932 {
933 sq(sk, 0, L"513", L"Hub is in state FNN_EST", NULL);
934 return;
935 }
936 if(fnetsendchat(fn, public, argv[3], argv[4]))
937 {
938 if(errno == ENOTSUP)
939 sq(sk, 0, L"513", L"This network does not support chatting", NULL);
940 else if(errno == EPERM)
941 sq(sk, 0, L"502", L"This node does not allow you to chat", NULL);
942 else if(errno == EILSEQ)
943 sq(sk, 0, L"504", L"This network could not support all the characters in that message", NULL);
944 else
945 sq(sk, 0, L"505", L"Could not chat", NULL);
946 return;
947 }
948 sq(sk, 0, L"200", L"Chat string sent", NULL);
949}
950
951static void cmd_search(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
952{
953 struct search *srch;
954 struct fnetnode *fn;
955 struct sexpr *sexpr;
956 int i;
957
958 haveargs(3);
959 havepriv(PERM_SRCH);
960 srch = newsearch(data->username, NULL);
961 for(i = 1; i < argc; i++)
962 {
963 if(!wcscmp(argv[i], L"all"))
964 {
965 for(fn = fnetnodes; fn != NULL; fn = fn->next)
966 {
967 if(fn->state == FNN_EST)
968 searchaddfn(srch, fn);
969 }
970 i++;
971 break;
972 } else if(!wcscmp(argv[i], L"prio")) {
973 if(++i == argc)
974 {
975 sq(sk, 0, L"501", L"No argument to prio", NULL);
976 freesearch(srch);
977 return;
978 }
979 srch->prio = wcstol(argv[i], NULL, 0);
980 } else if(iswdigit(*argv[i])) {
981 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
982 {
983 sq(sk, 0, L"510", L"No such node", NULL);
984 freesearch(srch);
985 return;
986 }
987 searchaddfn(srch, fn);
988 } else {
989 break;
990 }
991 }
992 if(srch->fnl == NULL)
993 {
994 sq(sk, 0, L"501", L"No fnetnodes to search found on line", NULL);
995 freesearch(srch);
996 return;
997 }
998 if(i == argc)
999 {
1000 sq(sk, 0, L"501", L"No search expression found on line", NULL);
1001 freesearch(srch);
1002 return;
1003 }
1004 if((sexpr = parsesexpr(argc - i, argv + i)) == NULL)
1005 {
1006 sq(sk, 0, L"509", L"Could not parse search expression", NULL);
1007 freesearch(srch);
1008 return;
1009 }
1010 optsexpr(sexpr);
1011 getsexpr(srch->sexpr = sexpr);
1012 queuesearch(srch);
1013 CBREG(srch, search_eta, srcheta, NULL, NULL);
1014 CBREG(srch, search_commit, srchcommit, NULL, NULL);
1015 CBREG(srch, search_result, srchres, NULL, NULL);
f7292a8b 1016 sq(sk, 0, L"200", L"%i", srch->id, L"%i", srch->eta - time(NULL), NULL);
d3372da9 1017 putsexpr(sexpr);
1018}
1019
1020static void cmd_lssrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1021{
1022 struct search *srch, *pt;
1023 time_t now;
1024
1025 havepriv(PERM_SRCH);
1026 pt = NULL;
1027 now = time(NULL);
1028 for(srch = searches; srch != NULL; srch = srch->next)
1029 {
1030 if(!wcscmp(srch->owner, data->username))
1031 {
1032 if(pt != NULL)
f7292a8b 1033 sq(sk, 1, L"200", L"%i", pt->id, L"%i", pt->state, L"%i", pt->eta - now, L"%i", pt->numres, NULL);
d3372da9 1034 pt = srch;
1035 }
1036 }
1037 if(pt == NULL)
1038 sq(sk, 0, L"201", L"No searches", NULL);
1039 else
f7292a8b 1040 sq(sk, 0, L"200", L"%i", pt->id, L"%i", pt->state, L"%i", pt->eta - now, L"%i", pt->numres, NULL);
d3372da9 1041}
1042
1043static void cmd_lssr(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1044{
1045 struct search *srch;
1046 struct srchres *sr;
d3372da9 1047
1048 haveargs(2);
1049 havepriv(PERM_SRCH);
1050 if((srch = findsearch(wcstol(argv[1], NULL, 0))) == NULL)
1051 {
1052 sq(sk, 0, L"514", L"No such search", NULL);
1053 return;
1054 }
1055 if(srch->results == NULL)
1056 {
1057 sq(sk, 0, L"201", L"No results", NULL);
1058 } else {
1059 for(sr = srch->results; sr != NULL; sr = sr->next)
1060 {
f7292a8b 1061 sq(sk, (sr->next != NULL)?1:0, L"200", L"%ls", sr->filename,
dcf7a1a2 1062 sr->fnet->name, L"%ls", sr->peerid, L"%oi", sr->size,
f7292a8b 1063 L"%i", sr->slots, L"%i", (sr->fn == NULL)?-1:(sr->fn->id),
1064 L"%f", sr->time,
1065 L"%ls", (sr->hash == NULL)?L"":unparsehash(sr->hash), NULL);
d3372da9 1066 }
1067 }
1068}
1069
1070static void cmd_cansrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1071{
1072 struct search *srch;
1073 int i;
1074
1075 haveargs(2);
1076 havepriv(PERM_SRCH);
1077 /* Note - Programmatical user interfaces must only give one
1078 * argument per command, the multiple argument form is only for
1079 * convenience when manually controlling the daemon via
1080 * eg. telnet. The reason is that the return codes aren't clear
1081 * enough for the multiple argument form. */
1082 for(i = 1; i < argc; i++)
1083 {
1084 if((srch = findsearch(wcstol(argv[i], NULL, 0))) == NULL)
1085 {
1086 sq(sk, 0, L"514", L"No such search", NULL);
1087 return;
1088 }
1089 freesearch(srch);
1090 }
1091 sq(sk, 0, L"200", L"Search cancelled", NULL);
1092}
1093
cab0b442 1094static void fcmdread(struct socket *sk, struct uidata *data)
d3372da9 1095{
1096 char *buf;
1097 size_t bufsize;
1098
1099 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
cab0b442 1100 return;
d3372da9 1101 bufcat(data->fcmdbuf, buf, bufsize);
1102 free(buf);
1103}
1104
cab0b442 1105static void fcmderr(struct socket *sk, int err, struct uidata *data)
d3372da9 1106{
1107 wchar_t *wbuf, *p, *p2;
1108
1109 if(err)
1110 {
1111 flog(LOG_WARNING, "error occurred on filtercmd pipe socket: %s", strerror(err));
1112 kill(-data->fcmdpid, SIGHUP);
1113 putsock(data->fcmdsk);
1114 data->fcmdsk = NULL;
1115 if(data->fcmdbuf != NULL)
1116 {
1117 free(data->fcmdbuf);
1118 data->fcmdbuf = NULL;
1119 }
1120 data->fcmdbufsize = data->fcmdbufdata = 0;
f7292a8b 1121 sq(data->sk, 0, L"505", L"An error occurred on the pipe to the filtercmd", L"%s", strerror(err), NULL);
cab0b442 1122 return;
d3372da9 1123 }
1124 putsock(data->fcmdsk);
1125 data->fcmdsk = NULL;
1126 data->fcmdpid = 0;
1127 if(data->fcmdbuf == NULL)
1128 {
1129 wbuf = swcsdup(L"");
1130 } else {
1131 addtobuf(data->fcmdbuf, 0);
1132 wbuf = icmbstowcs(data->fcmdbuf, NULL);
1133 free(data->fcmdbuf);
1134 }
1135 data->fcmdbuf = NULL;
1136 data->fcmdbufsize = data->fcmdbufdata = 0;
1137 if(wbuf == NULL)
1138 {
1139 sq(data->sk, 0, L"504", L"Filtercmd sent data which could not be converted from the local charset", NULL);
cab0b442 1140 return;
d3372da9 1141 }
1142 p = wbuf;
1143 for(p2 = wcschr(p, L'\n'); p2 != NULL; p2 = wcschr(p, L'\n'))
1144 {
1145 *(p2++) = L'\0';
f7292a8b 1146 sq(data->sk, (*p2 == L'\0')?0:1, L"200", L"%ls", p, NULL);
d3372da9 1147 p = p2;
1148 }
1149 if(*p == L'\0')
1150 {
1151 if(p == wbuf)
1152 sq(data->sk, 0, L"201", L"No data returned", NULL);
1153 } else {
f7292a8b 1154 sq(data->sk, 0, L"200", L"%ls", p, NULL);
d3372da9 1155 }
1156 free(wbuf);
1157}
1158
1159static void cmd_filtercmd(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1160{
1161 int i;
1162 pid_t pid;
1163 int pipe;
1164 char **cargv, **pp;
1165 char *filtercmd, *argbuf;
1166 size_t cargvsize, cargvdata;
1167 struct passwd *pwent;
1168
1169 haveargs(2);
1170 havepriv(PERM_TRANS);
1171 if((pwent = getpwuid(data->uid)) == NULL)
1172 {
1173 flog(LOG_WARNING, "no passwd entry for UI user %i", data->uid);
1174 sq(sk, 0, L"505", L"System error - Could not fork session", "Internal error", NULL);
1175 return;
1176 }
c0845d5b 1177 filtercmd = findfile("dc-filtercmd", pwent->pw_dir, 0);
ddb933f1 1178 if(filtercmd == NULL)
c0845d5b 1179 filtercmd = findfile(icswcstombs(confgetstr("ui", "filtercmd"), NULL, NULL), NULL, 0);
ddb933f1 1180 if(filtercmd == NULL)
d3372da9 1181 {
1182 flog(LOG_WARNING, "could not find filtercmd executable for user %s", pwent->pw_name);
1183 sq(sk, 0, L"505", L"System error - Could not fork session", L"Could not find filtercmd executable", NULL);
1184 return;
1185 }
1186 cargv = NULL;
1187 cargvsize = cargvdata = 0;
1188 addtobuf(cargv, filtercmd);
1189 for(i = 1; i < argc; i++)
1190 {
1191 if((argbuf = icwcstombs(argv[i], NULL)) == NULL)
1192 {
1193 for(i = 0; i < cargvdata; i++)
1194 free(cargv[i]);
1195 free(cargv);
f7292a8b 1196 sq(sk, 0, L"504", L"Could not convert argument into local character set", L"%i", i, L"%s", strerror(errno), NULL);
d3372da9 1197 return;
1198 }
1199 addtobuf(cargv, argbuf);
1200 }
1201 addtobuf(cargv, NULL);
1202 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)
1203 {
1204 flog(LOG_WARNING, "could not fork session in filtercmd: %s", strerror(errno));
f7292a8b 1205 sq(sk, 0, L"505", L"System error - Could not fork session", L"%s", strerror(errno), NULL);
d3372da9 1206 return;
1207 }
1208 if(pid == 0)
1209 {
1210 execv(filtercmd, cargv);
1211 flog(LOG_WARNING, "could not exec filtercmd %s: %s", filtercmd, strerror(errno));
1212 exit(127);
1213 }
1214 for(pp = cargv; *pp; pp++)
1215 free(*pp);
1216 free(cargv);
c662029b 1217 free(filtercmd);
d3372da9 1218 data->fcmdsk = wrapsock(pipe);
1219 data->fcmdpid = pid;
1220 if(data->fcmdbuf != NULL)
1221 {
1222 free(data->fcmdbuf);
1223 data->fcmdbuf = NULL;
1224 }
1225 data->fcmdbufsize = data->fcmdbufdata = 0;
cab0b442 1226 data->fcmdsk->data = data;
1227 data->fcmdsk->readcb = (void (*)(struct socket *, void *))fcmdread;
1228 data->fcmdsk->errcb = (void (*)(struct socket *, int, void *))fcmderr;
d3372da9 1229}
1230
1231static void cmd_lstrarg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1232{
1233 struct transfer *transfer;
9ec790e8 1234 struct wcspair *ta;
d3372da9 1235
1236 haveargs(2);
1237 havepriv(PERM_TRANS);
1238 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
1239 {
1240 sq(sk, 0, L"512", L"No such transfer", NULL);
1241 return;
1242 }
1243 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
1244 {
1245 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
1246 return;
1247 }
1248 if(transfer->args == NULL)
1249 {
1250 sq(sk, 0, L"201", L"Transfer has no arguments", NULL);
1251 } else {
1252 for(ta = transfer->args; ta != NULL; ta = ta->next)
f7292a8b 1253 sq(sk, ta->next != NULL, L"200", L"%ls", ta->key, L"%ls", ta->val, NULL);
d3372da9 1254 }
1255}
1256
1257static void cmd_hashstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1258{
1259 struct sharecache *node;
1260 int total, hashed;
1261
1262 total = hashed = 0;
1263 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1264 {
1265 if(node->f.b.type == FILE_REG)
1266 {
1267 total++;
1268 if(node->f.b.hastth)
1269 hashed++;
1270 }
1271 }
f7292a8b 1272 sq(sk, 0, L"200", L"%i", total, L"tth", L"%i", hashed, NULL);
d3372da9 1273}
1274
796283c6 1275static void cmd_transstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1276{
796283c6 1277 havepriv(PERM_TRANS);
f7292a8b 1278 sq(sk, 0, L"200", L"down", L"%ll", bytesdownload, L"up", L"%ll", bytesupload, NULL);
796283c6 1279}
1280
5f151349 1281static void cmd_register(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1282{
1283 struct uidata *d2;
1284
1285 haveargs(2);
1286 if(data->userinfo == NULL) {
1287 sq(sk, 0, L"502", L"Must be logged in", NULL);
1288 return;
1289 }
1290 if(argv[1][0] == L'#') {
1291 sq(sk, 0, L"509", L"Name must not begin with a hash sign", NULL);
1292 return;
1293 }
1294 for(d2 = actives; d2 != NULL; d2 = d2->next) {
7b2663a4 1295 if((d2 != data) && (d2->userinfo == data->userinfo) && d2->regname && !wcscmp(d2->regname, argv[1])) {
5f151349 1296 sq(sk, 0, L"516", L"Name already in use", NULL);
1297 return;
1298 }
1299 }
1300 if(data->regname != NULL)
1301 free(data->regname);
1302 data->regname = swcsdup(argv[1]);
1303 sq(sk, 0, L"200", L"Registered", NULL);
1304}
1305
1306static void cmd_sendmsg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1307{
1308 int i, rcptid;
1309 struct uidata *rcpt;
1310 wchar_t *myname;
1311 struct notif *notif;
1312
1313 haveargs(2);
1314 if(data->userinfo == NULL) {
1315 sq(sk, 0, L"502", L"Must be logged in", NULL);
1316 return;
1317 }
1318 if(argv[1][0] == L'#') {
1319 rcptid = wcstol(argv[1] + 1, NULL, 0);
1320 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1321 if((rcpt->userinfo == data->userinfo) && (rcpt->id == rcptid))
5f151349 1322 break;
1323 }
1324 } else {
1325 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1326 if((rcpt->userinfo == data->userinfo) && rcpt->regname && !wcscmp(rcpt->regname, argv[1]))
5f151349 1327 break;
1328 }
1329 }
1330 if(rcpt == NULL) {
1331 sq(sk, 0, L"517", L"No such recipient", NULL);
1332 return;
1333 }
1334 if(!rcpt->notify.b.msg) {
1335 sq(sk, 0, L"518", L"Recipient not listening for messages", NULL);
1336 return;
1337 }
1338 if(data->regname != NULL)
1339 myname = swcsdup(data->regname);
1340 else
1341 myname = swprintf2(L"#%i", data->id);
1342 notif = newnotif(rcpt, 640, NOTIF_STR, myname, NOTIF_END);
1343 for(i = 2; i < argc; i++)
1344 notifappend(notif, NOTIF_STR, argv[i], NOTIF_END);
1345 sq(sk, 0, L"200", L"Message sent", NULL);
1346}
1347
9a64a4f7 1348static void cmd_uptime(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1349{
f7292a8b 1350 sq(sk, 0, L"200", L"%i", time(NULL) - starttime, NULL);
9a64a4f7 1351}
1352
c45c9b79 1353static void cmd_hup(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1354{
1355 extern volatile int reinit;
1356
1357 havepriv(PERM_ADMIN);
1358 flog(LOG_NOTICE, "UI HUP request from %ls", data->username);
1359 reinit = 1;
1360 sq(sk, 0, L"200", L"Will reinit", NULL);
1361}
1362
d3372da9 1363#undef haveargs
1364#undef havepriv
1365
1366/*
1367 * Reserved command numbers for nameless commands:
1368 * 0: Issued when a client has connected
1369 * 1: Issued when a named command couldn't be found
1370 */
1371
1372static struct command commands[] =
1373{
1374 {NULL, cmd_connect},
1375 {NULL, cmd_notfound},
1376 {L"shutdown", cmd_shutdown},
1377 {L"quit", cmd_quit},
1378 {L"lsauth", cmd_lsauth},
1379 {L"login", cmd_login},
1380 {L"pass", cmd_pass},
1381 {L"cnct", cmd_fnetconnect},
1382 {L"lsnodes", cmd_lsnodes},
1383 {L"dcnct", cmd_disconnect},
1384 {L"lspa", cmd_lspa},
1385 {L"lspeers", cmd_lspeers},
1386 {L"download", cmd_download},
1387 {L"lstrans", cmd_lstrans},
1388 {L"cancel", cmd_cancel},
4a9a79b3 1389 {L"reset", cmd_reset},
d3372da9 1390 {L"notify", cmd_notify},
1391 {L"sendchat", cmd_sendchat},
1392 {L"search", cmd_search},
1393 {L"lssrch", cmd_lssrch},
1394 {L"lssr", cmd_lssr},
1395 {L"cansrch", cmd_cansrch},
1396 {L"filtercmd", cmd_filtercmd},
1397 {L"lstrarg", cmd_lstrarg},
1398 {L"hashstatus", cmd_hashstatus},
796283c6 1399 {L"transstatus", cmd_transstatus},
5f151349 1400 {L"register", cmd_register},
1401 {L"sendmsg", cmd_sendmsg},
9a64a4f7 1402 {L"uptime", cmd_uptime},
c45c9b79 1403 {L"hup", cmd_hup},
d3372da9 1404 {NULL, NULL}
1405};
1406
1407static void freequeuecmd(struct qcommand *qcmd)
1408{
1409 int i;
1410
1411 if(qcmd->argv != NULL)
1412 {
1413 for(i = 0; i < qcmd->argc; i++)
1414 free(qcmd->argv[i]);
1415 free(qcmd->argv);
1416 }
1417 free(qcmd);
1418}
1419
1420static struct qcommand *unlinkqcmd(struct uidata *data)
1421{
1422 struct qcommand *qcmd;
1423
1424 qcmd = data->queue;
1425 if(qcmd != NULL)
1426 {
821e3843 1427 data->queuesize--;
d3372da9 1428 data->queue = qcmd->next;
1429 if(qcmd == data->queuelast)
1430 data->queuelast = qcmd->next;
1431 }
1432 return(qcmd);
1433}
1434
ba86d49a 1435static void notifappendv(struct notif *notif, va_list args)
d3372da9 1436{
d3372da9 1437 int dt, ca;
1438
d3372da9 1439 while((dt = va_arg(args, int)) != NOTIF_END)
1440 {
1441 ca = notif->argc;
1442 notif->argv = realloc(notif->argv, sizeof(*notif->argv) * ++notif->argc);
1443 notif->argv[ca].dt = dt;
1444 switch(dt)
1445 {
1446 case NOTIF_INT:
1447 case NOTIF_ID:
1448 notif->argv[ca].d.n = va_arg(args, int);
1449 break;
dcf7a1a2
FT		 1450 case NOTIF_OFF:
1451 notif->argv[ca].d.o = va_arg(args, off_t);
1452 break;
d3372da9 1453 case NOTIF_STR:
2af7e5b0 1454 notif->argv[ca].d.s = swcsdup(va_arg(args, wchar_t *));
d3372da9 1455 break;
1456 case NOTIF_FLOAT:
1457 notif->argv[ca].d.d = va_arg(args, double);
1458 break;
1459 }
1460 }
ba86d49a 1461}
1462
1463static void notifappend(struct notif *notif, ...)
1464{
1465 va_list args;
1466
1467 va_start(args, notif);
1468 notifappendv(notif, args);
1469 va_end(args);
1470}
1471
1472static struct notif *newnotif(struct uidata *data, int code, ...)
1473{
1474 struct notif *notif;
1475 va_list args;
1476
1477 notif = smalloc(sizeof(*notif));
1478 memset(notif, 0, sizeof(*notif));
1479 notif->rlimit = 0.0;
1480 notif->ui = data;
1481 notif->code = code;
1482 va_start(args, code);
1483 notifappendv(notif, args);
d3372da9 1484 va_end(args);
1485 notif->next = NULL;
1486 notif->prev = data->lnotif;
1487 if(data->lnotif != NULL)
1488 data->lnotif->next = notif;
1489 else
1490 data->fnotif = notif;
1491 data->lnotif = notif;
1492 return(notif);
1493}
1494
1495static void freenotif(struct notif *notif)
1496{
1497 int i;
1498
1499 if(notif->next != NULL)
1500 notif->next->prev = notif->prev;
1501 if(notif->prev != NULL)
1502 notif->prev->next = notif->next;
1503 if(notif == notif->ui->fnotif)
1504 notif->ui->fnotif = notif->next;
1505 if(notif == notif->ui->lnotif)
1506 notif->ui->lnotif = notif->prev;
1507 if(notif->exptimer != NULL)
1508 canceltimer(notif->exptimer);
1509 for(i = 0; i < notif->argc; i++)
1510 {
1511 if(notif->argv[i].dt == NOTIF_STR)
1512 free(notif->argv[i].d.s);
1513 }
1514 if(notif->argv != NULL)
1515 free(notif->argv);
1516 free(notif);
1517}
1518
1519static void notifexpire(int cancelled, struct notif *notif)
1520{
1521 notif->exptimer = NULL;
1522 if(!cancelled)
1523 freenotif(notif);
1524}
1525
1526static struct notif *findnotif(struct notif *notif, int dir, int state, int code, int id)
1527{
1528 int i, cont;
1529
1530 for(; notif != NULL; notif = (dir?notif->next:notif->prev))
1531 {
1532 if((notif->code == code) && ((state < 0) || (state == notif->state)))
1533 {
1534 cont = 0;
1535 if(id >= 0)
1536 {
1537 for(i = 0; i < notif->argc; i++)
1538 {
1539 if((notif->argv[i].dt == NOTIF_ID) && (notif->argv[i].d.n != id))
1540 {
1541 cont = 1;
1542 break;
1543 }
1544 }
1545 }
1546 if(cont)
1547 continue;
1548 break;
1549 }
1550 }
1551 return(notif);
1552}
1553
1554static void freeuidata(struct uidata *data)
1555{
1556 int i;
1557 struct qcommand *qcmd;
1558
1559 if(data->next != NULL)
1560 data->next->prev = data->prev;
1561 if(data->prev != NULL)
1562 data->prev->next = data->next;
1563 if(data == actives)
1564 actives = data->next;
cab0b442 1565 data->sk->readcb = NULL;
1566 data->sk->errcb = NULL;
68f4d429 1567 closesock(data->sk);
d3372da9 1568 putsock(data->sk);
1569 while((qcmd = unlinkqcmd(data)) != NULL)
1570 freequeuecmd(qcmd);
1571 iconv_close(data->ichandle);
1572 if(data->cw != NULL)
1573 free(data->cw);
1574 if(data->cb != NULL)
1575 free(data->cb);
1576 if(data->argv != NULL)
1577 {
1578 for(i = 0; i < data->argc; i++)
1579 free(data->argv[i]);
1580 free(data->argv);
1581 }
1582 if(data->auth != NULL)
1583 authputhandle(data->auth);
5f151349 1584 if(data->regname != NULL)
1585 free(data->regname);
d3372da9 1586 if(data->username != NULL)
1587 {
1588 if(data->userinfo != NULL)
1589 flog(LOG_INFO, "%ls logged out", data->username);
1590 free(data->username);
1591 }
1592 free(data->inbuf);
1593 while(data->fnotif != NULL)
1594 freenotif(data->fnotif);
1595 if(data->fcmdbuf != NULL)
1596 free(data->fcmdbuf);
1597 if(data->fcmdpid != 0)
1598 kill(-data->fcmdpid, SIGHUP);
1599 if(data->fcmdsk != NULL)
1600 putsock(data->fcmdsk);
1601 free(data);
1602}
1603
1604static void queuecmd(struct uidata *data, struct command *cmd, int argc, wchar_t **argv)
1605{
1606 struct qcommand *new;
1607
1608 new = smalloc(sizeof(*new));
1609 new->cmd = cmd;
1610 new->argc = argc;
1611 new->argv = argv;
1612 new->next = NULL;
1613 if(data->queuelast != NULL)
1614 data->queuelast->next = new;
1615 data->queuelast = new;
1616 if(data->queue == NULL)
1617 data->queue = new;
821e3843 1618 data->queuesize++;
d3372da9 1619}
1620
1621static struct uidata *newuidata(struct socket *sk)
1622{
1623 struct uidata *data;
5f151349 1624 static int curid = 0;
d3372da9 1625
1626 data = smalloc(sizeof(*data));
1627 memset(data, 0, sizeof(*data));
5f151349 1628 data->id = curid++;
d3372da9 1629 data->sk = sk;
1630 getsock(sk);
1631 data->inbuf = smalloc(1024);
1632 data->uid = -1;
1633 if((data->ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1)
1634 {
1635 flog(LOG_CRIT, "iconv cannot handle UTF-8: %s", strerror(errno));
1636 return(NULL);
1637 }
1638 data->next = actives;
1639 data->prev = NULL;
1640 if(actives != NULL)
1641 actives->prev = data;
1642 actives = data;
1643 return(data);
1644}
1645
cab0b442 1646static void uiread(struct socket *sk, struct uidata *data)
d3372da9 1647{
1648 int ret, done;
1649 char *newbuf;
1650 char *p1, *p2;
1651 wchar_t *porig;
1652 size_t datalen, len2;
1653 struct command *cur;
1654
1655 if(data->indata > 1024)
1656 data->indata = 0;
1657 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 1658 return;
d3372da9 1659 sizebuf(&data->inbuf, &data->inbufsize, data->indata + datalen, 1, 1);
1660 memcpy(data->inbuf + data->indata, newbuf, datalen);
1661 free(newbuf);
1662 data->indata += datalen;
1663 if(data->cb == NULL)
1664 {
1665 data->cb = smalloc(sizeof(wchar_t) * (data->cbsize = 64));
1666 data->cbdata = 0;
1667 data->pp = data->cb;
1668 }
1669 done = 0;
1670 while(!done)
1671 {
1672 if(data->cbsize == data->cbdata)
1673 {
1674 len2 = data->pp - data->cb;
1675 data->cb = srealloc(data->cb, sizeof(wchar_t) * (data->cbsize *= 2));
1676 data->pp = data->cb + len2;
1677 }
1678 p1 = data->inbuf;
1679 p2 = (char *)(porig = (data->cb + data->cbdata));
1680 len2 = sizeof(wchar_t) * (data->cbsize - data->cbdata);
1681 ret = iconv(data->ichandle, &p1, &data->indata, &p2, &len2);
1682 memmove(data->inbuf, p1, data->indata);
1683 /* Just a sanity check */
1684 if(((p2 - ((char *)data->cb)) % sizeof(wchar_t)) != 0)
1685 {
1686 flog(LOG_CRIT, "Aiya! iconv does strange things to our wchar_t's!");
1687 abort();
1688 }
1689 data->cbdata += (((wchar_t *)p2) - porig);
1690 if(ret < 0)
1691 {
1692 switch(errno)
1693 {
1694 case EILSEQ:
1695 /* XXX: Should this really just ignore it? */
1696 data->indata = 0;
1697 done = 1;
1698 break;
1699 case EINVAL:
1700 done = 1;
1701 break;
1702 case E2BIG:
1703 /* Just a sanity check */
1704 if(data->cbsize != data->cbdata)
1705 {
1706 flog(LOG_CRIT, "Aiya! iconv doesn't give us wchar_t's!");
1707 abort();
1708 }
1709 break;
1710 default:
1711 flog(LOG_WARNING, "bug: strange error from iconv in uiread: %s", strerror(errno));
1712 break;
1713 }
1714 } else {
1715 done = 1;
1716 }
1717 }
1718 done = 0;
1719 while(!done && (data->pp - data->cb < data->cbdata))
1720 {
1721 switch(data->ps)
1722 {
1723 case 0:
1724 if(iswspace(*data->pp))
1725 {
1726 if(*data->pp == L'\r')
1727 {
1728 if(data->pp == data->cb + data->cbdata - 1)
1729 {
1730 done = 1;
1731 break;
1732 }
1733 if(*(++data->pp) == L'\n')
1734 {
1735 if((data->argv != NULL) && (data->argv[0] != NULL))
1736 {
1737 for(cur = commands; cur->handler != NULL; cur++)
1738 {
1739 if(cur->name == NULL)
1740 continue;
1741 if(!wcscasecmp(cur->name, data->argv[0]))
1742 {
1743 queuecmd(data, cur, data->argc, data->argv);
1744 break;
1745 }
1746 }
1747 if(cur->handler == NULL)
1748 queuecmd(data, &commands[1], data->argc, data->argv);
1749 } else {
1750 queuecmd(data, &commands[1], data->argc, data->argv);
1751 }
1752 data->argv = NULL;
1753 data->args = 0;
1754 data->argc = 0;
1755 wmemmove(data->cb, data->pp, data->cbdata -= (data->pp - data->cb));
1756 data->pp = data->cb;
1757 } else {
1758 data->pp++;
1759 }
1760 } else {
1761 data->pp++;
1762 }
1763 } else {
1764 data->ps = 1;
1765 data->cwdata = 0;
1766 }
1767 break;
1768 case 1:
1769 if(iswspace(*data->pp))
1770 {
1771 addtobuf(data->cw, L'\0');
1772 sizebuf(&data->argv, &data->args, data->argc + 1, sizeof(*data->argv), 1);
1773 data->argv[data->argc++] = data->cw;
1774 data->cw = NULL;
1775 data->cwsize = 0;
1776 data->cwdata = 0;
1777 data->ps = 0;
1778 } else if(*data->pp == L'\"') {
1779 data->ps = 2;
1780 data->pp++;
1781 } else if(*data->pp == L'\\') {
1782 if(data->pp == data->cb + data->cbdata - 1)
1783 {
1784 done = 1;
1785 break;
1786 }
1787 addtobuf(data->cw, *(++data->pp));
1788 data->pp++;
1789 } else {
1790 addtobuf(data->cw, *(data->pp++));
1791 }
1792 break;
1793 case 2:
1794 if(*data->pp == L'\"')
1795 {
1796 data->ps = 1;
1797 } else if(*data->pp == L'\\') {
1798 if(data->pp == data->cb + data->cbdata - 1)
1799 {
1800 done = 1;
1801 break;
1802 }
1803 addtobuf(data->cw, *(++(data->pp)));
1804 } else {
1805 addtobuf(data->cw, *data->pp);
1806 }
1807 data->pp++;
1808 break;
1809 }
1810 }
821e3843
FT		 1811 if(data->cbdata > 16384)
1812 {
1813 /* Kill clients that send us unreasonably long lines */
1814 data->close = 1;
1815 }
d3372da9 1816}
1817
cab0b442 1818static void uierror(struct socket *sk, int err, struct uidata *data)
d3372da9 1819{
1820 if(err)
1821 flog(LOG_WARNING, "error occurred on UI socket: %s", strerror(err));
1822 freeuidata(data);
1823}
1824
cab0b442 1825static void uiaccept(struct socket *sk, struct socket *newsk, void *data)
d3372da9 1826{
1827 struct uidata *uidata;
1828
cab0b442 1829 newsk->data = uidata = newuidata(newsk);
d3372da9 1830 socksettos(newsk, confgetint("ui", "uitos"));
1831 if(uidata == NULL)
cab0b442 1832 return;
1833 newsk->errcb = (void (*)(struct socket *, int, void *))uierror;
1834 newsk->readcb = (void (*)(struct socket *, void *))uiread;
d3372da9 1835 queuecmd(uidata, &commands[0], 0, NULL);
1836}
1837
1838static int srcheta(struct search *srch, void *uudata)
1839{
1840 struct uidata *data;
1841
1842 for(data = actives; data != NULL; data = data->next)
1843 {
1844 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1845 newnotif(data, 620, NOTIF_ID, srch->id, NOTIF_INT, srch->eta - time(NULL), NOTIF_END);
1846 }
1847 return(0);
1848}
1849
1850static int srchcommit(struct search *srch, void *uudata)
1851{
1852 struct uidata *data;
1853
1854 for(data = actives; data != NULL; data = data->next)
1855 {
1856 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1857 newnotif(data, 621, NOTIF_ID, srch->id, NOTIF_END);
1858 }
1859 return(0);
1860}
1861
1862static int srchres(struct search *srch, struct srchres *sr, void *uudata)
1863{
1864 struct uidata *data;
1865
1866 for(data = actives; data != NULL; data = data->next)
1867 {
1868 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
ebbc13f3 1869 {
dcf7a1a2 1870 newnotif(data, 622, NOTIF_ID, srch->id, NOTIF_STR, sr->filename, NOTIF_STR, sr->fnet->name, NOTIF_STR, sr->peerid, NOTIF_OFF, sr->size,
5123bec0 1871 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);
ebbc13f3 1872 }
d3372da9 1873 }
1874 return(0);
1875}
1876
1877static int recvchat(struct fnetnode *fn, int public, wchar_t *name, wchar_t *peer, wchar_t *string, void *uudata)
1878{
1879 struct uidata *data;
1880
1881 for(data = actives; data != NULL; data = data->next)
1882 {
1883 if(haspriv(data, PERM_CHAT) && data->notify.b.fnchat)
1884 newnotif(data, 600, NOTIF_ID, fn->id, NOTIF_INT, public, NOTIF_STR, name, NOTIF_STR, peer, NOTIF_STR, string, NOTIF_END);
1885 }
1886 return(0);
1887}
1888
1889static int fnactive(struct fnetnode *fn, wchar_t *attrib, void *uudata)
1890{
1891 struct uidata *data;
1892 struct notif *notif;
1893
1894 if(!wcscmp(attrib, L"state"))
1895 {
1896 for(data = actives; data != NULL; data = data->next)
1897 {
1898 if(data->notify.b.fnact)
1899 newnotif(data, 601, NOTIF_ID, fn->id, NOTIF_INT, fn->state, NOTIF_END);
1900 }
1901 } else if(!wcscmp(attrib, L"name")) {
1902 for(data = actives; data != NULL; data = data->next)
1903 {
1904 if(data->notify.b.fnact)
1905 newnotif(data, 602, NOTIF_ID, fn->id, NOTIF_STR, fn->name, NOTIF_END);
1906 }
1907 } else if(!wcscmp(attrib, L"numpeers")) {
1908 for(data = actives; data != NULL; data = data->next)
1909 {
1910 if(data->notify.b.fnact)
1911 {
1912 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 605, fn->id)) != NULL)
1913 notif->argv[1].d.n = fn->numpeers;
1914 else
ba86d49a 1915 newnotif(data, 605, NOTIF_ID, fn->id, NOTIF_INT, fn->numpeers, NOTIF_END)->rlimit = 0.5;
d3372da9 1916 }
1917 }
1918 }
1919 return(0);
1920}
1921
1922static int fnunlink(struct fnetnode *fn, void *uudata)
1923{
1924 struct uidata *data;
1925
1926 for(data = actives; data != NULL; data = data->next)
1927 {
1928 if(data->notify.b.fnact)
1929 newnotif(data, 603, NOTIF_ID, fn->id, NOTIF_END);
1930 }
1931 return(0);
1932}
1933
ba86d49a 1934static int peernew(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1935{
1936 struct uidata *data;
1937
1938 for(data = actives; data != NULL; data = data->next)
1939 {
1940 if(data->notify.b.fnpeer)
1941 newnotif(data, 630, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1942 }
1943 return(0);
1944}
1945
1946static int peerdel(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1947{
1948 struct uidata *data;
1949
1950 for(data = actives; data != NULL; data = data->next)
1951 {
1952 if(data->notify.b.fnpeer)
1953 newnotif(data, 631, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_END);
1954 }
1955 return(0);
1956}
1957
1958static int peerchange(struct fnetnode *fn, struct fnetpeer *peer, struct fnetpeerdi *di, void *uudata)
1959{
1960 struct uidata *data;
1961 struct notif *notif;
1962 wchar_t buf[32];
1963
1964 for(data = actives; data != NULL; data = data->next)
1965 {
1966 if(data->notify.b.fnpeer)
1967 {
1968 for(notif = data->fnotif; notif != NULL; notif = notif->next)
1969 {
1970 if((notif->code == 632) && (notif->state == NOTIF_PEND) && (notif->argv[0].d.n == fn->id) && !wcscmp(notif->argv[1].d.s, peer->id))
1971 break;
1972 }
1973 if(notif == NULL)
1974 notif = newnotif(data, 632, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1975 notifappend(notif, NOTIF_STR, di->datum->id, NOTIF_INT, di->datum->datatype, NOTIF_END);
1976 switch(di->datum->datatype)
1977 {
1978 case FNPD_INT:
1979 notifappend(notif, NOTIF_INT, di->data.num, NOTIF_END);
1980 break;
1981 case FNPD_STR:
1982 notifappend(notif, NOTIF_STR, di->data.str, NOTIF_END);
1983 break;
1984 case FNPD_LL:
1985 swprintf(buf, sizeof(buf) / sizeof(*buf), L"%lli", di->data.lnum);
1986 notifappend(notif, NOTIF_STR, buf, NOTIF_END);
1987 break;
1988 }
1989 }
1990 }
1991 return(0);
1992}
1993
d3372da9 1994static int newfnetnode(struct fnetnode *fn, void *uudata)
1995{
1996 struct uidata *data;
1997
1998 for(data = actives; data != NULL; data = data->next)
1999 {
2000 if(data->notify.b.fnact)
2001 newnotif(data, 604, NOTIF_ID, fn->id, NOTIF_STR, fn->fnet->name, NOTIF_END);
2002 }
2003 CBREG(fn, fnetnode_ac, fnactive, NULL, NULL);
2004 CBREG(fn, fnetnode_chat, recvchat, NULL, NULL);
2005 CBREG(fn, fnetnode_unlink, fnunlink, NULL, NULL);
ba86d49a 2006 CBREG(fn, fnetpeer_new, peernew, NULL, NULL);
2007 CBREG(fn, fnetpeer_del, peerdel, NULL, NULL);
2008 CBREG(fn, fnetpeer_chdi, peerchange, NULL, NULL);
d3372da9 2009 return(0);
2010}
2011
2012static int transferchattr(struct transfer *transfer, wchar_t *attrib, void *uudata)
2013{
2014 struct uidata *data;
2015
2016 if(!wcscmp(attrib, L"state"))
2017 {
2018 for(data = actives; data != NULL; data = data->next)
2019 {
2020 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2021 newnotif(data, 611, NOTIF_ID, transfer->id, NOTIF_INT, transfer->state, NOTIF_END);
2022 }
2023 } else if(!wcscmp(attrib, L"nick")) {
2024 for(data = actives; data != NULL; data = data->next)
2025 {
2026 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2027 newnotif(data, 612, NOTIF_ID, transfer->id, NOTIF_STR, transfer->peernick, NOTIF_END);
2028 }
2029 } else if(!wcscmp(attrib, L"size")) {
2030 for(data = actives; data != NULL; data = data->next)
2031 {
2032 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
dcf7a1a2 2033 newnotif(data, 613, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->size, NOTIF_END);
d3372da9 2034 }
2035 } else if(!wcscmp(attrib, L"error")) {
2036 for(data = actives; data != NULL; data = data->next)
2037 {
2038 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2039 newnotif(data, 614, NOTIF_ID, transfer->id, NOTIF_INT, transfer->error, NOTIF_END);
2040 }
2041 } else if(!wcscmp(attrib, L"path")) {
2042 for(data = actives; data != NULL; data = data->next)
2043 {
2044 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2045 newnotif(data, 616, NOTIF_ID, transfer->id, NOTIF_STR, transfer->path, NOTIF_END);
2046 }
a04fc9ff 2047 } else if(!wcscmp(attrib, L"hash")) {
2048 for(data = actives; data != NULL; data = data->next)
2049 {
2050 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
5e13cdca 2051 newnotif(data, 618, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->hash == NULL)?L"":unparsehash(transfer->hash), NOTIF_END);
a04fc9ff 2052 }
d3372da9 2053 }
2054 return(0);
2055}
2056
2057static int transferprog(struct transfer *transfer, void *uudata)
2058{
2059 struct uidata *data;
2060 struct notif *notif;
2061
2062 for(data = actives; data != NULL; data = data->next)
2063 {
2064 if(haspriv(data, PERM_TRANS) && data->notify.b.trprog && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2065 {
2066 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 615, transfer->id)) != NULL)
dcf7a1a2 2067 notif->argv[1].d.o = transfer->curpos;
d3372da9 2068 else
dcf7a1a2 2069 newnotif(data, 615, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->curpos, NOTIF_END)->rlimit = 0.5;
d3372da9 2070 }
2071 }
2072 return(0);
2073}
2074
2075static int transferdestroyed(struct transfer *transfer, void *uudata)
2076{
2077 struct uidata *data;
2078
2079 for(data = actives; data != NULL; data = data->next)
2080 {
2081 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
3d204c2d 2082 newnotif(data, 617, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->exitstatus == NULL)?L"":(transfer->exitstatus), NOTIF_END);
d3372da9 2083 }
2084 return(0);
2085}
2086
2087static int newtransfernotify(struct transfer *transfer, void *uudata)
2088{
2089 struct uidata *data;
2090
2091 for(data = actives; data != NULL; data = data->next)
2092 {
2093 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2094 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);
2095 }
2096 CBREG(transfer, trans_ac, transferchattr, NULL, NULL);
2097 CBREG(transfer, trans_p, transferprog, NULL, NULL);
2098 CBREG(transfer, trans_destroy, transferdestroyed, NULL, NULL);
2099 return(0);
2100}
2101
2102static struct uiuser *newuser(wchar_t *name, unsigned long perms)
2103{
2104 struct uiuser *new;
2105
2106 new = smalloc(sizeof(*new));
2107 new->used = 0;
2108 new->name = swcsdup(name);
2109 new->perms = perms;
2110 new->delete = 0;
2111 new->next = users;
2112 new->prev = NULL;
2113 if(users != NULL)
2114 users->prev = new;
2115 users = new;
2116 return(new);
2117}
2118
2119static void freeuser(struct uiuser *user)
2120{
2121 if(user->next != NULL)
2122 user->next->prev = user->prev;
2123 if(user->prev != NULL)
2124 user->prev->next = user->next;
2125 if(user == users)
2126 users = user->next;
2127 free(user->name);
2128 free(user);
2129}
2130
2131static int conf_user(int argc, wchar_t **argv)
2132{
2133 int i, perms, permmod;
2134 struct uiuser *user;
2135 wchar_t *p;
2136
2137 if(argc < 3)
2138 {
2139 flog(LOG_WARNING, "not enough arguments given for user command");
2140 return(1);
2141 }
2142 perms = 0;
2143 for(i = 2; i < argc; i++)
2144 {
2145 if(!iswalpha(argv[i][0]))
2146 p = argv[i] + 1;
2147 else
2148 p = argv[i];
2149 if(!wcscmp(p, L"disallow"))
2150 permmod = PERM_DISALLOW;
2151 if(!wcscmp(p, L"admin"))
2152 permmod = PERM_ADMIN;
2153 if(!wcscmp(p, L"fnetctl"))
2154 permmod = PERM_FNETCTL;
2155 if(!wcscmp(p, L"trans"))
2156 permmod = PERM_TRANS;
2157 if(!wcscmp(p, L"transcu"))
2158 permmod = PERM_TRANSCU;
2159 if(!wcscmp(p, L"chat"))
2160 permmod = PERM_CHAT;
2161 if(!wcscmp(p, L"srch"))
2162 permmod = PERM_SRCH;
2163 if(!wcscmp(p, L"all"))
2164 permmod = ~0;
2165 if(argv[i][0] == L'-')
2166 perms &= ~permmod;
2167 else
2168 perms |= permmod;
2169 }
2170 if((user = finduser(argv[1])) == NULL)
2171 {
2172 newuser(argv[1], perms);
2173 } else {
2174 user->delete = 0;
2175 user->perms = perms;
2176 }
2177 return(0);
2178}
2179
2180static void preinit(int hup)
2181{
2182 struct uiuser *user;
2183
2184 if(!hup)
2185 {
8754fb85 2186 newuser(L"default", PERM_DISALLOW);
d3372da9 2187 } else {
2188 for(user = users; user != NULL; user = user->next)
2189 {
2190 if(!wcscmp(user->name, L"default"))
2191 user->delete = 1;
2192 }
2193 }
2194}
2195
ddb933f1 2196static struct sockaddr_un *makeunixname(void)
2197{
2198 static struct sockaddr_un buf;
2199 char *val;
2200 struct passwd *pwd;
2201 uid_t uid;
2202
2203 memset(&buf, 0, sizeof(buf));
2204 buf.sun_family = PF_UNIX;
2205 if((val = icswcstombs(confgetstr("ui", "unixsock"), NULL, NULL)) == NULL) {
2206 flog(LOG_WARNING, "could not map Unix socket name into local charset: %s", strerror(errno));
2207 return(NULL);
2208 }
2209 if(!strcmp(val, "none"))
2210 return(NULL);
2211 if(!strcmp(val, "default"))
2212 {
2213 if((uid = getuid()) == 0)
2214 {
2215 strcpy(buf.sun_path, "/var/run/doldacond.sock");
2216 return(&buf);
2217 } else {
2218 if((pwd = getpwuid(uid)) == NULL)
2219 {
2220 flog(LOG_ERR, "could not get passwd entry for current user: %s", strerror(errno));
2221 return(NULL);
2222 }
2223 strcpy(buf.sun_path, "/tmp/doldacond-");
2224 strcat(buf.sun_path, pwd->pw_name);
2225 return(&buf);
2226 }
2227 }
2228 if(strchr(val, '/'))
2229 {
2230 strcpy(buf.sun_path, val);
2231 return(&buf);
2232 }
2233 flog(LOG_WARNING, "invalid Unix socket name: %s", val);
2234 return(NULL);
2235}
2236
2237static int tcpportupdate(struct configvar *var, void *uudata)
d3372da9 2238{
d3372da9 2239 struct socket *newsock;
2240
ddb933f1 2241 newsock = NULL;
2242 if((var->val.num != -1) && ((newsock = netcstcplisten(var->val.num, 1, uiaccept, NULL)) == NULL))
d3372da9 2243 {
ddb933f1 2244 flog(LOG_WARNING, "could not create new TCP UI socket, reverting to old: %s", strerror(errno));
d3372da9 2245 return(0);
2246 }
ddb933f1 2247 if(tcpsocket != NULL)
2248 {
2249 putsock(tcpsocket);
2250 tcpsocket = NULL;
2251 }
2252 tcpsocket = newsock;
2253 return(0);
2254}
2255
2256static int unixsockupdate(struct configvar *var, void *uudata)
2257{
2258 struct socket *newsock;
2259 struct sockaddr_un *un;
4cb04c42 2260 mode_t ou;
ddb933f1 2261
2262 newsock = NULL;
4cb04c42 2263 ou = umask(0111);
ddb933f1 2264 if(((un = makeunixname()) != NULL) && ((newsock = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
2265 {
4cb04c42 2266 umask(ou);
ddb933f1 2267 flog(LOG_WARNING, "could not create new Unix UI socket, reverting to old: %s", strerror(errno));
2268 return(0);
2269 }
4cb04c42 2270 umask(ou);
ddb933f1 2271 if(unixsocket != NULL)
2272 {
2273 putsock(unixsocket);
2274 unixsocket = NULL;
2275 }
2276 unixsocket = newsock;
d3372da9 2277 return(0);
2278}
2279
2280static int init(int hup)
2281{
d3372da9 2282 struct uiuser *user, *next;
ddb933f1 2283 struct sockaddr_un *un;
8754fb85 2284 struct passwd *pwd;
2285 wchar_t *wcsname;
4cb04c42 2286 mode_t ou;
d3372da9 2287
2288 if(hup)
2289 {
2290 for(user = users; user != NULL; user = next)
2291 {
2292 next = user->next;
2293 if(user->delete)
2294 freeuser(user);
2295 }
2296 }
2297 if(!hup)
2298 {
9a64a4f7 2299 starttime = time(NULL);
ddb933f1 2300 if((confgetint("ui", "port") != -1) && ((tcpsocket = netcstcplisten(confgetint("ui", "port"), 1, uiaccept, NULL)) == NULL))
2301 {
2302 flog(LOG_CRIT, "could not create TCP UI socket: %s", strerror(errno));
2303 return(1);
2304 }
2305 CBREG(confgetvar("ui", "port"), conf_update, tcpportupdate, NULL, NULL);
4cb04c42 2306 ou = umask(0111);
ddb933f1 2307 if(((un = makeunixname()) != NULL) && ((unixsocket = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
d3372da9 2308 {
4cb04c42 2309 umask(ou);
ddb933f1 2310 flog(LOG_CRIT, "could not create Unix UI socket: %s", strerror(errno));
d3372da9 2311 return(1);
2312 }
4cb04c42 2313 umask(ou);
ddb933f1 2314 CBREG(confgetvar("ui", "unixsock"), conf_update, unixsockupdate, NULL, NULL);
d3372da9 2315 GCBREG(newfncb, newfnetnode, NULL);
2316 GCBREG(newtransfercb, newtransfernotify, NULL);
2317 }
8754fb85 2318 if(getuid() != 0)
2319 {
2320 for(user = users; user != NULL; user = user->next)
2321 {
2322 if(wcscmp(user->name, L"default"))
2323 break;
2324 }
2325 if(!user)
2326 {
2327 if((pwd = getpwuid(getuid())) == NULL)
2328 {
2329 flog(LOG_CRIT, "could not get login info: %s", strerror(errno));
2330 return(1);
2331 }
2332 if((wcsname = icmbstowcs(pwd->pw_name, NULL)) == NULL)
2333 {
2334 flog(LOG_CRIT, "could not convert user name into wcs: %s", strerror(errno));
2335 return(1);
2336 }
2337 newuser(wcsname, ~PERM_DISALLOW);
2338 free(wcsname);
2339 }
2340 }
d3372da9 2341 return(0);
2342}
2343
2344static int run(void)
2345{
2346 int i, id;
2347 struct uidata *data, *next;
2348 struct qcommand *qcmd;
2349 struct notif *notif, *nnotif;
d3372da9 2350
2351 for(data = actives; data != NULL; data = next)
2352 {
2353 next = data->next;
2354 if(data->close)
2355 freeuidata(data);
2356 }
2357 for(data = actives; data != NULL; data = data->next)
2358 {
2359 for(notif = data->fnotif; notif != NULL; notif = nnotif)
2360 {
2361 nnotif = notif->next;
2362 if(notif->state == NOTIF_WAIT)
2363 continue;
2364 id = -1;
2365 for(i = 0; i < notif->argc; i++)
2366 {
2367 if(notif->argv[i].dt == NOTIF_ID)
2368 {
2369 id = notif->argv[i].d.n;
2370 break;
2371 }
2372 }
2373 if(findnotif(notif->prev, 0, -1, notif->code, id) != NULL)
2374 continue;
f7292a8b 2375 sq(data->sk, 2, L"%i", notif->code, NULL);
d3372da9 2376 for(i = 0; i < notif->argc; i++)
2377 {
2378 switch(notif->argv[i].dt)
2379 {
2380 case NOTIF_INT:
2381 case NOTIF_ID:
f7292a8b 2382 sq(data->sk, 2, L"%i", notif->argv[i].d.n, NULL);
d3372da9 2383 break;
dcf7a1a2
FT		 2384 case NOTIF_OFF:
2385 sq(data->sk, 2, L"%oi", notif->argv[i].d.o, NULL);
2386 break;
d3372da9 2387 case NOTIF_STR:
2388 if(notif->argv[i].d.s[0] == L'%')
f7292a8b 2389 sq(data->sk, 2, L"%ls", notif->argv[i].d.s, NULL);
d3372da9 2390 else
2391 sq(data->sk, 2, notif->argv[i].d.s, NULL);
2392 break;
2393 case NOTIF_FLOAT:
f7292a8b 2394 sq(data->sk, 2, L"%f", notif->argv[i].d.d, NULL);
d3372da9 2395 break;
2396 }
2397 }
2398 sq(data->sk, 0, NULL);
2399 if(notif->rlimit != 0)
2400 {
2401 notif->state = NOTIF_WAIT;
2402 notif->exptimer = timercallback(ntime() + notif->rlimit, (void (*)(int, void *))notifexpire, notif);
2403 } else {
2404 freenotif(notif);
2405 }
2406 }
2407 if((qcmd = unlinkqcmd(data)) != NULL)
2408 {
2409 qcmd->cmd->handler(data->sk, data, qcmd->argc, qcmd->argv);
2410 freequeuecmd(qcmd);
2411 return(1);
2412 }
821e3843
FT		 2413 if(data->queuesize > 10)
2414 {
2415 /* Clients should not be queue up commands at all, since
2416 * they should not send a new command before receiving a
2417 * reply to the previous command. Therefore, we
2418 * mercilessly massacre clients which are stacking up too
2419 * many commands. */
2420 data->close = 1;
2421 }
d3372da9 2422 }
2423 return(0);
2424}
2425
2426static void terminate(void)
2427{
2428 while(users != NULL)
2429 freeuser(users);
ddb933f1 2430 if(tcpsocket != NULL)
2431 putsock(tcpsocket);
2432 if(unixsocket != NULL)
2433 putsock(unixsocket);
d3372da9 2434}
2435
2436static struct configvar myvars[] =
2437{
d9f89ef5 2438 /** If true, UI connections will only be accepted from localhost
2439 * addresses (127.0.0.1, ::1 or ::ffff:127.0.0.1). Unless you are
2440 * completely sure that you know what you are doing, never turn
2441 * this off when auth.authless is on. */
d3372da9 2442 {CONF_VAR_BOOL, "onlylocal", {.num = 1}},
ddb933f1 2443 /** The TCP port number on which to accept UI client connections,
2444 * or -1 to not listen on TCP. */
d3372da9 2445 {CONF_VAR_INT, "port", {.num = 1500}},
ddb933f1 2446 /**
2447 * Controls the the name to use for the Unix socket on which to
2448 * accept UI client connections. If the name contains a slash, it
2449 * is treated as a file name to bind on. If the name is "default",
2450 * the file name will be "/var/run/doldacond.sock" if doldacond
2451 * runs with UID == 0, or "/tmp/doldacond-NAME" otherwise, where
2452 * NAME is the user name of the UID which doldacond runs as. If
2453 * the name is "none", no Unix socket will be used. Otherwise, an
2454 * error is signaled.
2455 */
2456 {CONF_VAR_STRING, "unixsock", {.str = L"default"}},
d9f89ef5 2457 /** The TOS value to use for UI connections (see the TOS VALUES
2458 * section). */
d3372da9 2459 {CONF_VAR_INT, "uitos", {.num = SOCK_TOS_MINDELAY}},
d9f89ef5 2460 /** The name of the filtercmd script (see the FILES section for
2461 * lookup information). */
d3372da9 2462 {CONF_VAR_STRING, "filtercmd", {.str = L"dc-filtercmd"}},
2463 {CONF_VAR_END}
2464};
2465
2466static struct configcmd mycmds[] =
2467{
2468 {"user", conf_user},
2469 {NULL}
2470};
2471
2472static struct module me =
2473{
2474 .name = "ui",
2475 .conf =
2476 {
2477 .vars = myvars,
2478 .cmds = mycmds
2479 },
2480 .preinit = preinit,
2481 .init = init,
2482 .run = run,
2483 .terminate = terminate
2484};
2485
2486MODULE(me)
Dolda Connect