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Included stdint.h in files that use intmax_t.
[doldaconnect.git] / daemon / ui.c
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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);
1217 data->fcmdsk = wrapsock(pipe);
1218 data->fcmdpid = pid;
1219 if(data->fcmdbuf != NULL)
1220 {
1221 free(data->fcmdbuf);
1222 data->fcmdbuf = NULL;
1223 }
1224 data->fcmdbufsize = data->fcmdbufdata = 0;
cab0b442 1225 data->fcmdsk->data = data;
1226 data->fcmdsk->readcb = (void (*)(struct socket *, void *))fcmdread;
1227 data->fcmdsk->errcb = (void (*)(struct socket *, int, void *))fcmderr;
d3372da9 1228}
1229
1230static void cmd_lstrarg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1231{
1232 struct transfer *transfer;
9ec790e8 1233 struct wcspair *ta;
d3372da9 1234
1235 haveargs(2);
1236 havepriv(PERM_TRANS);
1237 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
1238 {
1239 sq(sk, 0, L"512", L"No such transfer", NULL);
1240 return;
1241 }
1242 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
1243 {
1244 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
1245 return;
1246 }
1247 if(transfer->args == NULL)
1248 {
1249 sq(sk, 0, L"201", L"Transfer has no arguments", NULL);
1250 } else {
1251 for(ta = transfer->args; ta != NULL; ta = ta->next)
f7292a8b 1252 sq(sk, ta->next != NULL, L"200", L"%ls", ta->key, L"%ls", ta->val, NULL);
d3372da9 1253 }
1254}
1255
1256static void cmd_hashstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1257{
1258 struct sharecache *node;
1259 int total, hashed;
1260
1261 total = hashed = 0;
1262 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1263 {
1264 if(node->f.b.type == FILE_REG)
1265 {
1266 total++;
1267 if(node->f.b.hastth)
1268 hashed++;
1269 }
1270 }
f7292a8b 1271 sq(sk, 0, L"200", L"%i", total, L"tth", L"%i", hashed, NULL);
d3372da9 1272}
1273
796283c6 1274static void cmd_transstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1275{
796283c6 1276 havepriv(PERM_TRANS);
f7292a8b 1277 sq(sk, 0, L"200", L"down", L"%ll", bytesdownload, L"up", L"%ll", bytesupload, NULL);
796283c6 1278}
1279
5f151349 1280static void cmd_register(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1281{
1282 struct uidata *d2;
1283
1284 haveargs(2);
1285 if(data->userinfo == NULL) {
1286 sq(sk, 0, L"502", L"Must be logged in", NULL);
1287 return;
1288 }
1289 if(argv[1][0] == L'#') {
1290 sq(sk, 0, L"509", L"Name must not begin with a hash sign", NULL);
1291 return;
1292 }
1293 for(d2 = actives; d2 != NULL; d2 = d2->next) {
7b2663a4 1294 if((d2 != data) && (d2->userinfo == data->userinfo) && d2->regname && !wcscmp(d2->regname, argv[1])) {
5f151349 1295 sq(sk, 0, L"516", L"Name already in use", NULL);
1296 return;
1297 }
1298 }
1299 if(data->regname != NULL)
1300 free(data->regname);
1301 data->regname = swcsdup(argv[1]);
1302 sq(sk, 0, L"200", L"Registered", NULL);
1303}
1304
1305static void cmd_sendmsg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1306{
1307 int i, rcptid;
1308 struct uidata *rcpt;
1309 wchar_t *myname;
1310 struct notif *notif;
1311
1312 haveargs(2);
1313 if(data->userinfo == NULL) {
1314 sq(sk, 0, L"502", L"Must be logged in", NULL);
1315 return;
1316 }
1317 if(argv[1][0] == L'#') {
1318 rcptid = wcstol(argv[1] + 1, NULL, 0);
1319 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1320 if((rcpt->userinfo == data->userinfo) && (rcpt->id == rcptid))
5f151349 1321 break;
1322 }
1323 } else {
1324 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1325 if((rcpt->userinfo == data->userinfo) && rcpt->regname && !wcscmp(rcpt->regname, argv[1]))
5f151349 1326 break;
1327 }
1328 }
1329 if(rcpt == NULL) {
1330 sq(sk, 0, L"517", L"No such recipient", NULL);
1331 return;
1332 }
1333 if(!rcpt->notify.b.msg) {
1334 sq(sk, 0, L"518", L"Recipient not listening for messages", NULL);
1335 return;
1336 }
1337 if(data->regname != NULL)
1338 myname = swcsdup(data->regname);
1339 else
1340 myname = swprintf2(L"#%i", data->id);
1341 notif = newnotif(rcpt, 640, NOTIF_STR, myname, NOTIF_END);
1342 for(i = 2; i < argc; i++)
1343 notifappend(notif, NOTIF_STR, argv[i], NOTIF_END);
1344 sq(sk, 0, L"200", L"Message sent", NULL);
1345}
1346
9a64a4f7 1347static void cmd_uptime(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1348{
f7292a8b 1349 sq(sk, 0, L"200", L"%i", time(NULL) - starttime, NULL);
9a64a4f7 1350}
1351
c45c9b79 1352static void cmd_hup(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1353{
1354 extern volatile int reinit;
1355
1356 havepriv(PERM_ADMIN);
1357 flog(LOG_NOTICE, "UI HUP request from %ls", data->username);
1358 reinit = 1;
1359 sq(sk, 0, L"200", L"Will reinit", NULL);
1360}
1361
d3372da9 1362#undef haveargs
1363#undef havepriv
1364
1365/*
1366 * Reserved command numbers for nameless commands:
1367 * 0: Issued when a client has connected
1368 * 1: Issued when a named command couldn't be found
1369 */
1370
1371static struct command commands[] =
1372{
1373 {NULL, cmd_connect},
1374 {NULL, cmd_notfound},
1375 {L"shutdown", cmd_shutdown},
1376 {L"quit", cmd_quit},
1377 {L"lsauth", cmd_lsauth},
1378 {L"login", cmd_login},
1379 {L"pass", cmd_pass},
1380 {L"cnct", cmd_fnetconnect},
1381 {L"lsnodes", cmd_lsnodes},
1382 {L"dcnct", cmd_disconnect},
1383 {L"lspa", cmd_lspa},
1384 {L"lspeers", cmd_lspeers},
1385 {L"download", cmd_download},
1386 {L"lstrans", cmd_lstrans},
1387 {L"cancel", cmd_cancel},
4a9a79b3 1388 {L"reset", cmd_reset},
d3372da9 1389 {L"notify", cmd_notify},
1390 {L"sendchat", cmd_sendchat},
1391 {L"search", cmd_search},
1392 {L"lssrch", cmd_lssrch},
1393 {L"lssr", cmd_lssr},
1394 {L"cansrch", cmd_cansrch},
1395 {L"filtercmd", cmd_filtercmd},
1396 {L"lstrarg", cmd_lstrarg},
1397 {L"hashstatus", cmd_hashstatus},
796283c6 1398 {L"transstatus", cmd_transstatus},
5f151349 1399 {L"register", cmd_register},
1400 {L"sendmsg", cmd_sendmsg},
9a64a4f7 1401 {L"uptime", cmd_uptime},
c45c9b79 1402 {L"hup", cmd_hup},
d3372da9 1403 {NULL, NULL}
1404};
1405
1406static void freequeuecmd(struct qcommand *qcmd)
1407{
1408 int i;
1409
1410 if(qcmd->argv != NULL)
1411 {
1412 for(i = 0; i < qcmd->argc; i++)
1413 free(qcmd->argv[i]);
1414 free(qcmd->argv);
1415 }
1416 free(qcmd);
1417}
1418
1419static struct qcommand *unlinkqcmd(struct uidata *data)
1420{
1421 struct qcommand *qcmd;
1422
1423 qcmd = data->queue;
1424 if(qcmd != NULL)
1425 {
821e3843 1426 data->queuesize--;
d3372da9 1427 data->queue = qcmd->next;
1428 if(qcmd == data->queuelast)
1429 data->queuelast = qcmd->next;
1430 }
1431 return(qcmd);
1432}
1433
ba86d49a 1434static void notifappendv(struct notif *notif, va_list args)
d3372da9 1435{
d3372da9 1436 int dt, ca;
1437
d3372da9 1438 while((dt = va_arg(args, int)) != NOTIF_END)
1439 {
1440 ca = notif->argc;
1441 notif->argv = realloc(notif->argv, sizeof(*notif->argv) * ++notif->argc);
1442 notif->argv[ca].dt = dt;
1443 switch(dt)
1444 {
1445 case NOTIF_INT:
1446 case NOTIF_ID:
1447 notif->argv[ca].d.n = va_arg(args, int);
1448 break;
dcf7a1a2
FT		 1449 case NOTIF_OFF:
1450 notif->argv[ca].d.o = va_arg(args, off_t);
1451 break;
d3372da9 1452 case NOTIF_STR:
2af7e5b0 1453 notif->argv[ca].d.s = swcsdup(va_arg(args, wchar_t *));
d3372da9 1454 break;
1455 case NOTIF_FLOAT:
1456 notif->argv[ca].d.d = va_arg(args, double);
1457 break;
1458 }
1459 }
ba86d49a 1460}
1461
1462static void notifappend(struct notif *notif, ...)
1463{
1464 va_list args;
1465
1466 va_start(args, notif);
1467 notifappendv(notif, args);
1468 va_end(args);
1469}
1470
1471static struct notif *newnotif(struct uidata *data, int code, ...)
1472{
1473 struct notif *notif;
1474 va_list args;
1475
1476 notif = smalloc(sizeof(*notif));
1477 memset(notif, 0, sizeof(*notif));
1478 notif->rlimit = 0.0;
1479 notif->ui = data;
1480 notif->code = code;
1481 va_start(args, code);
1482 notifappendv(notif, args);
d3372da9 1483 va_end(args);
1484 notif->next = NULL;
1485 notif->prev = data->lnotif;
1486 if(data->lnotif != NULL)
1487 data->lnotif->next = notif;
1488 else
1489 data->fnotif = notif;
1490 data->lnotif = notif;
1491 return(notif);
1492}
1493
1494static void freenotif(struct notif *notif)
1495{
1496 int i;
1497
1498 if(notif->next != NULL)
1499 notif->next->prev = notif->prev;
1500 if(notif->prev != NULL)
1501 notif->prev->next = notif->next;
1502 if(notif == notif->ui->fnotif)
1503 notif->ui->fnotif = notif->next;
1504 if(notif == notif->ui->lnotif)
1505 notif->ui->lnotif = notif->prev;
1506 if(notif->exptimer != NULL)
1507 canceltimer(notif->exptimer);
1508 for(i = 0; i < notif->argc; i++)
1509 {
1510 if(notif->argv[i].dt == NOTIF_STR)
1511 free(notif->argv[i].d.s);
1512 }
1513 if(notif->argv != NULL)
1514 free(notif->argv);
1515 free(notif);
1516}
1517
1518static void notifexpire(int cancelled, struct notif *notif)
1519{
1520 notif->exptimer = NULL;
1521 if(!cancelled)
1522 freenotif(notif);
1523}
1524
1525static struct notif *findnotif(struct notif *notif, int dir, int state, int code, int id)
1526{
1527 int i, cont;
1528
1529 for(; notif != NULL; notif = (dir?notif->next:notif->prev))
1530 {
1531 if((notif->code == code) && ((state < 0) || (state == notif->state)))
1532 {
1533 cont = 0;
1534 if(id >= 0)
1535 {
1536 for(i = 0; i < notif->argc; i++)
1537 {
1538 if((notif->argv[i].dt == NOTIF_ID) && (notif->argv[i].d.n != id))
1539 {
1540 cont = 1;
1541 break;
1542 }
1543 }
1544 }
1545 if(cont)
1546 continue;
1547 break;
1548 }
1549 }
1550 return(notif);
1551}
1552
1553static void freeuidata(struct uidata *data)
1554{
1555 int i;
1556 struct qcommand *qcmd;
1557
1558 if(data->next != NULL)
1559 data->next->prev = data->prev;
1560 if(data->prev != NULL)
1561 data->prev->next = data->next;
1562 if(data == actives)
1563 actives = data->next;
cab0b442 1564 data->sk->readcb = NULL;
1565 data->sk->errcb = NULL;
68f4d429 1566 closesock(data->sk);
d3372da9 1567 putsock(data->sk);
1568 while((qcmd = unlinkqcmd(data)) != NULL)
1569 freequeuecmd(qcmd);
1570 iconv_close(data->ichandle);
1571 if(data->cw != NULL)
1572 free(data->cw);
1573 if(data->cb != NULL)
1574 free(data->cb);
1575 if(data->argv != NULL)
1576 {
1577 for(i = 0; i < data->argc; i++)
1578 free(data->argv[i]);
1579 free(data->argv);
1580 }
1581 if(data->auth != NULL)
1582 authputhandle(data->auth);
5f151349 1583 if(data->regname != NULL)
1584 free(data->regname);
d3372da9 1585 if(data->username != NULL)
1586 {
1587 if(data->userinfo != NULL)
1588 flog(LOG_INFO, "%ls logged out", data->username);
1589 free(data->username);
1590 }
1591 free(data->inbuf);
1592 while(data->fnotif != NULL)
1593 freenotif(data->fnotif);
1594 if(data->fcmdbuf != NULL)
1595 free(data->fcmdbuf);
1596 if(data->fcmdpid != 0)
1597 kill(-data->fcmdpid, SIGHUP);
1598 if(data->fcmdsk != NULL)
1599 putsock(data->fcmdsk);
1600 free(data);
1601}
1602
1603static void queuecmd(struct uidata *data, struct command *cmd, int argc, wchar_t **argv)
1604{
1605 struct qcommand *new;
1606
1607 new = smalloc(sizeof(*new));
1608 new->cmd = cmd;
1609 new->argc = argc;
1610 new->argv = argv;
1611 new->next = NULL;
1612 if(data->queuelast != NULL)
1613 data->queuelast->next = new;
1614 data->queuelast = new;
1615 if(data->queue == NULL)
1616 data->queue = new;
821e3843 1617 data->queuesize++;
d3372da9 1618}
1619
1620static struct uidata *newuidata(struct socket *sk)
1621{
1622 struct uidata *data;
5f151349 1623 static int curid = 0;
d3372da9 1624
1625 data = smalloc(sizeof(*data));
1626 memset(data, 0, sizeof(*data));
5f151349 1627 data->id = curid++;
d3372da9 1628 data->sk = sk;
1629 getsock(sk);
1630 data->inbuf = smalloc(1024);
1631 data->uid = -1;
1632 if((data->ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1)
1633 {
1634 flog(LOG_CRIT, "iconv cannot handle UTF-8: %s", strerror(errno));
1635 return(NULL);
1636 }
1637 data->next = actives;
1638 data->prev = NULL;
1639 if(actives != NULL)
1640 actives->prev = data;
1641 actives = data;
1642 return(data);
1643}
1644
cab0b442 1645static void uiread(struct socket *sk, struct uidata *data)
d3372da9 1646{
1647 int ret, done;
1648 char *newbuf;
1649 char *p1, *p2;
1650 wchar_t *porig;
1651 size_t datalen, len2;
1652 struct command *cur;
1653
1654 if(data->indata > 1024)
1655 data->indata = 0;
1656 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 1657 return;
d3372da9 1658 sizebuf(&data->inbuf, &data->inbufsize, data->indata + datalen, 1, 1);
1659 memcpy(data->inbuf + data->indata, newbuf, datalen);
1660 free(newbuf);
1661 data->indata += datalen;
1662 if(data->cb == NULL)
1663 {
1664 data->cb = smalloc(sizeof(wchar_t) * (data->cbsize = 64));
1665 data->cbdata = 0;
1666 data->pp = data->cb;
1667 }
1668 done = 0;
1669 while(!done)
1670 {
1671 if(data->cbsize == data->cbdata)
1672 {
1673 len2 = data->pp - data->cb;
1674 data->cb = srealloc(data->cb, sizeof(wchar_t) * (data->cbsize *= 2));
1675 data->pp = data->cb + len2;
1676 }
1677 p1 = data->inbuf;
1678 p2 = (char *)(porig = (data->cb + data->cbdata));
1679 len2 = sizeof(wchar_t) * (data->cbsize - data->cbdata);
1680 ret = iconv(data->ichandle, &p1, &data->indata, &p2, &len2);
1681 memmove(data->inbuf, p1, data->indata);
1682 /* Just a sanity check */
1683 if(((p2 - ((char *)data->cb)) % sizeof(wchar_t)) != 0)
1684 {
1685 flog(LOG_CRIT, "Aiya! iconv does strange things to our wchar_t's!");
1686 abort();
1687 }
1688 data->cbdata += (((wchar_t *)p2) - porig);
1689 if(ret < 0)
1690 {
1691 switch(errno)
1692 {
1693 case EILSEQ:
1694 /* XXX: Should this really just ignore it? */
1695 data->indata = 0;
1696 done = 1;
1697 break;
1698 case EINVAL:
1699 done = 1;
1700 break;
1701 case E2BIG:
1702 /* Just a sanity check */
1703 if(data->cbsize != data->cbdata)
1704 {
1705 flog(LOG_CRIT, "Aiya! iconv doesn't give us wchar_t's!");
1706 abort();
1707 }
1708 break;
1709 default:
1710 flog(LOG_WARNING, "bug: strange error from iconv in uiread: %s", strerror(errno));
1711 break;
1712 }
1713 } else {
1714 done = 1;
1715 }
1716 }
1717 done = 0;
1718 while(!done && (data->pp - data->cb < data->cbdata))
1719 {
1720 switch(data->ps)
1721 {
1722 case 0:
1723 if(iswspace(*data->pp))
1724 {
1725 if(*data->pp == L'\r')
1726 {
1727 if(data->pp == data->cb + data->cbdata - 1)
1728 {
1729 done = 1;
1730 break;
1731 }
1732 if(*(++data->pp) == L'\n')
1733 {
1734 if((data->argv != NULL) && (data->argv[0] != NULL))
1735 {
1736 for(cur = commands; cur->handler != NULL; cur++)
1737 {
1738 if(cur->name == NULL)
1739 continue;
1740 if(!wcscasecmp(cur->name, data->argv[0]))
1741 {
1742 queuecmd(data, cur, data->argc, data->argv);
1743 break;
1744 }
1745 }
1746 if(cur->handler == NULL)
1747 queuecmd(data, &commands[1], data->argc, data->argv);
1748 } else {
1749 queuecmd(data, &commands[1], data->argc, data->argv);
1750 }
1751 data->argv = NULL;
1752 data->args = 0;
1753 data->argc = 0;
1754 wmemmove(data->cb, data->pp, data->cbdata -= (data->pp - data->cb));
1755 data->pp = data->cb;
1756 } else {
1757 data->pp++;
1758 }
1759 } else {
1760 data->pp++;
1761 }
1762 } else {
1763 data->ps = 1;
1764 data->cwdata = 0;
1765 }
1766 break;
1767 case 1:
1768 if(iswspace(*data->pp))
1769 {
1770 addtobuf(data->cw, L'\0');
1771 sizebuf(&data->argv, &data->args, data->argc + 1, sizeof(*data->argv), 1);
1772 data->argv[data->argc++] = data->cw;
1773 data->cw = NULL;
1774 data->cwsize = 0;
1775 data->cwdata = 0;
1776 data->ps = 0;
1777 } else if(*data->pp == L'\"') {
1778 data->ps = 2;
1779 data->pp++;
1780 } else if(*data->pp == L'\\') {
1781 if(data->pp == data->cb + data->cbdata - 1)
1782 {
1783 done = 1;
1784 break;
1785 }
1786 addtobuf(data->cw, *(++data->pp));
1787 data->pp++;
1788 } else {
1789 addtobuf(data->cw, *(data->pp++));
1790 }
1791 break;
1792 case 2:
1793 if(*data->pp == L'\"')
1794 {
1795 data->ps = 1;
1796 } else if(*data->pp == L'\\') {
1797 if(data->pp == data->cb + data->cbdata - 1)
1798 {
1799 done = 1;
1800 break;
1801 }
1802 addtobuf(data->cw, *(++(data->pp)));
1803 } else {
1804 addtobuf(data->cw, *data->pp);
1805 }
1806 data->pp++;
1807 break;
1808 }
1809 }
821e3843
FT		 1810 if(data->cbdata > 16384)
1811 {
1812 /* Kill clients that send us unreasonably long lines */
1813 data->close = 1;
1814 }
d3372da9 1815}
1816
cab0b442 1817static void uierror(struct socket *sk, int err, struct uidata *data)
d3372da9 1818{
1819 if(err)
1820 flog(LOG_WARNING, "error occurred on UI socket: %s", strerror(err));
1821 freeuidata(data);
1822}
1823
cab0b442 1824static void uiaccept(struct socket *sk, struct socket *newsk, void *data)
d3372da9 1825{
1826 struct uidata *uidata;
1827
cab0b442 1828 newsk->data = uidata = newuidata(newsk);
d3372da9 1829 socksettos(newsk, confgetint("ui", "uitos"));
1830 if(uidata == NULL)
cab0b442 1831 return;
1832 newsk->errcb = (void (*)(struct socket *, int, void *))uierror;
1833 newsk->readcb = (void (*)(struct socket *, void *))uiread;
d3372da9 1834 queuecmd(uidata, &commands[0], 0, NULL);
1835}
1836
1837static int srcheta(struct search *srch, void *uudata)
1838{
1839 struct uidata *data;
1840
1841 for(data = actives; data != NULL; data = data->next)
1842 {
1843 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1844 newnotif(data, 620, NOTIF_ID, srch->id, NOTIF_INT, srch->eta - time(NULL), NOTIF_END);
1845 }
1846 return(0);
1847}
1848
1849static int srchcommit(struct search *srch, void *uudata)
1850{
1851 struct uidata *data;
1852
1853 for(data = actives; data != NULL; data = data->next)
1854 {
1855 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1856 newnotif(data, 621, NOTIF_ID, srch->id, NOTIF_END);
1857 }
1858 return(0);
1859}
1860
1861static int srchres(struct search *srch, struct srchres *sr, void *uudata)
1862{
1863 struct uidata *data;
1864
1865 for(data = actives; data != NULL; data = data->next)
1866 {
1867 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
ebbc13f3 1868 {
dcf7a1a2 1869 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 1870 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 1871 }
d3372da9 1872 }
1873 return(0);
1874}
1875
1876static int recvchat(struct fnetnode *fn, int public, wchar_t *name, wchar_t *peer, wchar_t *string, void *uudata)
1877{
1878 struct uidata *data;
1879
1880 for(data = actives; data != NULL; data = data->next)
1881 {
1882 if(haspriv(data, PERM_CHAT) && data->notify.b.fnchat)
1883 newnotif(data, 600, NOTIF_ID, fn->id, NOTIF_INT, public, NOTIF_STR, name, NOTIF_STR, peer, NOTIF_STR, string, NOTIF_END);
1884 }
1885 return(0);
1886}
1887
1888static int fnactive(struct fnetnode *fn, wchar_t *attrib, void *uudata)
1889{
1890 struct uidata *data;
1891 struct notif *notif;
1892
1893 if(!wcscmp(attrib, L"state"))
1894 {
1895 for(data = actives; data != NULL; data = data->next)
1896 {
1897 if(data->notify.b.fnact)
1898 newnotif(data, 601, NOTIF_ID, fn->id, NOTIF_INT, fn->state, NOTIF_END);
1899 }
1900 } else if(!wcscmp(attrib, L"name")) {
1901 for(data = actives; data != NULL; data = data->next)
1902 {
1903 if(data->notify.b.fnact)
1904 newnotif(data, 602, NOTIF_ID, fn->id, NOTIF_STR, fn->name, NOTIF_END);
1905 }
1906 } else if(!wcscmp(attrib, L"numpeers")) {
1907 for(data = actives; data != NULL; data = data->next)
1908 {
1909 if(data->notify.b.fnact)
1910 {
1911 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 605, fn->id)) != NULL)
1912 notif->argv[1].d.n = fn->numpeers;
1913 else
ba86d49a 1914 newnotif(data, 605, NOTIF_ID, fn->id, NOTIF_INT, fn->numpeers, NOTIF_END)->rlimit = 0.5;
d3372da9 1915 }
1916 }
1917 }
1918 return(0);
1919}
1920
1921static int fnunlink(struct fnetnode *fn, void *uudata)
1922{
1923 struct uidata *data;
1924
1925 for(data = actives; data != NULL; data = data->next)
1926 {
1927 if(data->notify.b.fnact)
1928 newnotif(data, 603, NOTIF_ID, fn->id, NOTIF_END);
1929 }
1930 return(0);
1931}
1932
ba86d49a 1933static int peernew(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1934{
1935 struct uidata *data;
1936
1937 for(data = actives; data != NULL; data = data->next)
1938 {
1939 if(data->notify.b.fnpeer)
1940 newnotif(data, 630, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1941 }
1942 return(0);
1943}
1944
1945static int peerdel(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1946{
1947 struct uidata *data;
1948
1949 for(data = actives; data != NULL; data = data->next)
1950 {
1951 if(data->notify.b.fnpeer)
1952 newnotif(data, 631, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_END);
1953 }
1954 return(0);
1955}
1956
1957static int peerchange(struct fnetnode *fn, struct fnetpeer *peer, struct fnetpeerdi *di, void *uudata)
1958{
1959 struct uidata *data;
1960 struct notif *notif;
1961 wchar_t buf[32];
1962
1963 for(data = actives; data != NULL; data = data->next)
1964 {
1965 if(data->notify.b.fnpeer)
1966 {
1967 for(notif = data->fnotif; notif != NULL; notif = notif->next)
1968 {
1969 if((notif->code == 632) && (notif->state == NOTIF_PEND) && (notif->argv[0].d.n == fn->id) && !wcscmp(notif->argv[1].d.s, peer->id))
1970 break;
1971 }
1972 if(notif == NULL)
1973 notif = newnotif(data, 632, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1974 notifappend(notif, NOTIF_STR, di->datum->id, NOTIF_INT, di->datum->datatype, NOTIF_END);
1975 switch(di->datum->datatype)
1976 {
1977 case FNPD_INT:
1978 notifappend(notif, NOTIF_INT, di->data.num, NOTIF_END);
1979 break;
1980 case FNPD_STR:
1981 notifappend(notif, NOTIF_STR, di->data.str, NOTIF_END);
1982 break;
1983 case FNPD_LL:
1984 swprintf(buf, sizeof(buf) / sizeof(*buf), L"%lli", di->data.lnum);
1985 notifappend(notif, NOTIF_STR, buf, NOTIF_END);
1986 break;
1987 }
1988 }
1989 }
1990 return(0);
1991}
1992
d3372da9 1993static int newfnetnode(struct fnetnode *fn, void *uudata)
1994{
1995 struct uidata *data;
1996
1997 for(data = actives; data != NULL; data = data->next)
1998 {
1999 if(data->notify.b.fnact)
2000 newnotif(data, 604, NOTIF_ID, fn->id, NOTIF_STR, fn->fnet->name, NOTIF_END);
2001 }
2002 CBREG(fn, fnetnode_ac, fnactive, NULL, NULL);
2003 CBREG(fn, fnetnode_chat, recvchat, NULL, NULL);
2004 CBREG(fn, fnetnode_unlink, fnunlink, NULL, NULL);
ba86d49a 2005 CBREG(fn, fnetpeer_new, peernew, NULL, NULL);
2006 CBREG(fn, fnetpeer_del, peerdel, NULL, NULL);
2007 CBREG(fn, fnetpeer_chdi, peerchange, NULL, NULL);
d3372da9 2008 return(0);
2009}
2010
2011static int transferchattr(struct transfer *transfer, wchar_t *attrib, void *uudata)
2012{
2013 struct uidata *data;
2014
2015 if(!wcscmp(attrib, L"state"))
2016 {
2017 for(data = actives; data != NULL; data = data->next)
2018 {
2019 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2020 newnotif(data, 611, NOTIF_ID, transfer->id, NOTIF_INT, transfer->state, NOTIF_END);
2021 }
2022 } else if(!wcscmp(attrib, L"nick")) {
2023 for(data = actives; data != NULL; data = data->next)
2024 {
2025 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2026 newnotif(data, 612, NOTIF_ID, transfer->id, NOTIF_STR, transfer->peernick, NOTIF_END);
2027 }
2028 } else if(!wcscmp(attrib, L"size")) {
2029 for(data = actives; data != NULL; data = data->next)
2030 {
2031 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
dcf7a1a2 2032 newnotif(data, 613, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->size, NOTIF_END);
d3372da9 2033 }
2034 } else if(!wcscmp(attrib, L"error")) {
2035 for(data = actives; data != NULL; data = data->next)
2036 {
2037 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2038 newnotif(data, 614, NOTIF_ID, transfer->id, NOTIF_INT, transfer->error, NOTIF_END);
2039 }
2040 } else if(!wcscmp(attrib, L"path")) {
2041 for(data = actives; data != NULL; data = data->next)
2042 {
2043 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2044 newnotif(data, 616, NOTIF_ID, transfer->id, NOTIF_STR, transfer->path, NOTIF_END);
2045 }
a04fc9ff 2046 } else if(!wcscmp(attrib, L"hash")) {
2047 for(data = actives; data != NULL; data = data->next)
2048 {
2049 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
5e13cdca 2050 newnotif(data, 618, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->hash == NULL)?L"":unparsehash(transfer->hash), NOTIF_END);
a04fc9ff 2051 }
d3372da9 2052 }
2053 return(0);
2054}
2055
2056static int transferprog(struct transfer *transfer, void *uudata)
2057{
2058 struct uidata *data;
2059 struct notif *notif;
2060
2061 for(data = actives; data != NULL; data = data->next)
2062 {
2063 if(haspriv(data, PERM_TRANS) && data->notify.b.trprog && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2064 {
2065 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 615, transfer->id)) != NULL)
dcf7a1a2 2066 notif->argv[1].d.o = transfer->curpos;
d3372da9 2067 else
dcf7a1a2 2068 newnotif(data, 615, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->curpos, NOTIF_END)->rlimit = 0.5;
d3372da9 2069 }
2070 }
2071 return(0);
2072}
2073
2074static int transferdestroyed(struct transfer *transfer, void *uudata)
2075{
2076 struct uidata *data;
2077
2078 for(data = actives; data != NULL; data = data->next)
2079 {
2080 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
3d204c2d 2081 newnotif(data, 617, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->exitstatus == NULL)?L"":(transfer->exitstatus), NOTIF_END);
d3372da9 2082 }
2083 return(0);
2084}
2085
2086static int newtransfernotify(struct transfer *transfer, void *uudata)
2087{
2088 struct uidata *data;
2089
2090 for(data = actives; data != NULL; data = data->next)
2091 {
2092 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2093 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);
2094 }
2095 CBREG(transfer, trans_ac, transferchattr, NULL, NULL);
2096 CBREG(transfer, trans_p, transferprog, NULL, NULL);
2097 CBREG(transfer, trans_destroy, transferdestroyed, NULL, NULL);
2098 return(0);
2099}
2100
2101static struct uiuser *newuser(wchar_t *name, unsigned long perms)
2102{
2103 struct uiuser *new;
2104
2105 new = smalloc(sizeof(*new));
2106 new->used = 0;
2107 new->name = swcsdup(name);
2108 new->perms = perms;
2109 new->delete = 0;
2110 new->next = users;
2111 new->prev = NULL;
2112 if(users != NULL)
2113 users->prev = new;
2114 users = new;
2115 return(new);
2116}
2117
2118static void freeuser(struct uiuser *user)
2119{
2120 if(user->next != NULL)
2121 user->next->prev = user->prev;
2122 if(user->prev != NULL)
2123 user->prev->next = user->next;
2124 if(user == users)
2125 users = user->next;
2126 free(user->name);
2127 free(user);
2128}
2129
2130static int conf_user(int argc, wchar_t **argv)
2131{
2132 int i, perms, permmod;
2133 struct uiuser *user;
2134 wchar_t *p;
2135
2136 if(argc < 3)
2137 {
2138 flog(LOG_WARNING, "not enough arguments given for user command");
2139 return(1);
2140 }
2141 perms = 0;
2142 for(i = 2; i < argc; i++)
2143 {
2144 if(!iswalpha(argv[i][0]))
2145 p = argv[i] + 1;
2146 else
2147 p = argv[i];
2148 if(!wcscmp(p, L"disallow"))
2149 permmod = PERM_DISALLOW;
2150 if(!wcscmp(p, L"admin"))
2151 permmod = PERM_ADMIN;
2152 if(!wcscmp(p, L"fnetctl"))
2153 permmod = PERM_FNETCTL;
2154 if(!wcscmp(p, L"trans"))
2155 permmod = PERM_TRANS;
2156 if(!wcscmp(p, L"transcu"))
2157 permmod = PERM_TRANSCU;
2158 if(!wcscmp(p, L"chat"))
2159 permmod = PERM_CHAT;
2160 if(!wcscmp(p, L"srch"))
2161 permmod = PERM_SRCH;
2162 if(!wcscmp(p, L"all"))
2163 permmod = ~0;
2164 if(argv[i][0] == L'-')
2165 perms &= ~permmod;
2166 else
2167 perms |= permmod;
2168 }
2169 if((user = finduser(argv[1])) == NULL)
2170 {
2171 newuser(argv[1], perms);
2172 } else {
2173 user->delete = 0;
2174 user->perms = perms;
2175 }
2176 return(0);
2177}
2178
2179static void preinit(int hup)
2180{
2181 struct uiuser *user;
2182
2183 if(!hup)
2184 {
8754fb85 2185 newuser(L"default", PERM_DISALLOW);
d3372da9 2186 } else {
2187 for(user = users; user != NULL; user = user->next)
2188 {
2189 if(!wcscmp(user->name, L"default"))
2190 user->delete = 1;
2191 }
2192 }
2193}
2194
ddb933f1 2195static struct sockaddr_un *makeunixname(void)
2196{
2197 static struct sockaddr_un buf;
2198 char *val;
2199 struct passwd *pwd;
2200 uid_t uid;
2201
2202 memset(&buf, 0, sizeof(buf));
2203 buf.sun_family = PF_UNIX;
2204 if((val = icswcstombs(confgetstr("ui", "unixsock"), NULL, NULL)) == NULL) {
2205 flog(LOG_WARNING, "could not map Unix socket name into local charset: %s", strerror(errno));
2206 return(NULL);
2207 }
2208 if(!strcmp(val, "none"))
2209 return(NULL);
2210 if(!strcmp(val, "default"))
2211 {
2212 if((uid = getuid()) == 0)
2213 {
2214 strcpy(buf.sun_path, "/var/run/doldacond.sock");
2215 return(&buf);
2216 } else {
2217 if((pwd = getpwuid(uid)) == NULL)
2218 {
2219 flog(LOG_ERR, "could not get passwd entry for current user: %s", strerror(errno));
2220 return(NULL);
2221 }
2222 strcpy(buf.sun_path, "/tmp/doldacond-");
2223 strcat(buf.sun_path, pwd->pw_name);
2224 return(&buf);
2225 }
2226 }
2227 if(strchr(val, '/'))
2228 {
2229 strcpy(buf.sun_path, val);
2230 return(&buf);
2231 }
2232 flog(LOG_WARNING, "invalid Unix socket name: %s", val);
2233 return(NULL);
2234}
2235
2236static int tcpportupdate(struct configvar *var, void *uudata)
d3372da9 2237{
d3372da9 2238 struct socket *newsock;
2239
ddb933f1 2240 newsock = NULL;
2241 if((var->val.num != -1) && ((newsock = netcstcplisten(var->val.num, 1, uiaccept, NULL)) == NULL))
d3372da9 2242 {
ddb933f1 2243 flog(LOG_WARNING, "could not create new TCP UI socket, reverting to old: %s", strerror(errno));
d3372da9 2244 return(0);
2245 }
ddb933f1 2246 if(tcpsocket != NULL)
2247 {
2248 putsock(tcpsocket);
2249 tcpsocket = NULL;
2250 }
2251 tcpsocket = newsock;
2252 return(0);
2253}
2254
2255static int unixsockupdate(struct configvar *var, void *uudata)
2256{
2257 struct socket *newsock;
2258 struct sockaddr_un *un;
4cb04c42 2259 mode_t ou;
ddb933f1 2260
2261 newsock = NULL;
4cb04c42 2262 ou = umask(0111);
ddb933f1 2263 if(((un = makeunixname()) != NULL) && ((newsock = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
2264 {
4cb04c42 2265 umask(ou);
ddb933f1 2266 flog(LOG_WARNING, "could not create new Unix UI socket, reverting to old: %s", strerror(errno));
2267 return(0);
2268 }
4cb04c42 2269 umask(ou);
ddb933f1 2270 if(unixsocket != NULL)
2271 {
2272 putsock(unixsocket);
2273 unixsocket = NULL;
2274 }
2275 unixsocket = newsock;
d3372da9 2276 return(0);
2277}
2278
2279static int init(int hup)
2280{
d3372da9 2281 struct uiuser *user, *next;
ddb933f1 2282 struct sockaddr_un *un;
8754fb85 2283 struct passwd *pwd;
2284 wchar_t *wcsname;
4cb04c42 2285 mode_t ou;
d3372da9 2286
2287 if(hup)
2288 {
2289 for(user = users; user != NULL; user = next)
2290 {
2291 next = user->next;
2292 if(user->delete)
2293 freeuser(user);
2294 }
2295 }
2296 if(!hup)
2297 {
9a64a4f7 2298 starttime = time(NULL);
ddb933f1 2299 if((confgetint("ui", "port") != -1) && ((tcpsocket = netcstcplisten(confgetint("ui", "port"), 1, uiaccept, NULL)) == NULL))
2300 {
2301 flog(LOG_CRIT, "could not create TCP UI socket: %s", strerror(errno));
2302 return(1);
2303 }
2304 CBREG(confgetvar("ui", "port"), conf_update, tcpportupdate, NULL, NULL);
4cb04c42 2305 ou = umask(0111);
ddb933f1 2306 if(((un = makeunixname()) != NULL) && ((unixsocket = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
d3372da9 2307 {
4cb04c42 2308 umask(ou);
ddb933f1 2309 flog(LOG_CRIT, "could not create Unix UI socket: %s", strerror(errno));
d3372da9 2310 return(1);
2311 }
4cb04c42 2312 umask(ou);
ddb933f1 2313 CBREG(confgetvar("ui", "unixsock"), conf_update, unixsockupdate, NULL, NULL);
d3372da9 2314 GCBREG(newfncb, newfnetnode, NULL);
2315 GCBREG(newtransfercb, newtransfernotify, NULL);
2316 }
8754fb85 2317 if(getuid() != 0)
2318 {
2319 for(user = users; user != NULL; user = user->next)
2320 {
2321 if(wcscmp(user->name, L"default"))
2322 break;
2323 }
2324 if(!user)
2325 {
2326 if((pwd = getpwuid(getuid())) == NULL)
2327 {
2328 flog(LOG_CRIT, "could not get login info: %s", strerror(errno));
2329 return(1);
2330 }
2331 if((wcsname = icmbstowcs(pwd->pw_name, NULL)) == NULL)
2332 {
2333 flog(LOG_CRIT, "could not convert user name into wcs: %s", strerror(errno));
2334 return(1);
2335 }
2336 newuser(wcsname, ~PERM_DISALLOW);
2337 free(wcsname);
2338 }
2339 }
d3372da9 2340 return(0);
2341}
2342
2343static int run(void)
2344{
2345 int i, id;
2346 struct uidata *data, *next;
2347 struct qcommand *qcmd;
2348 struct notif *notif, *nnotif;
d3372da9 2349
2350 for(data = actives; data != NULL; data = next)
2351 {
2352 next = data->next;
2353 if(data->close)
2354 freeuidata(data);
2355 }
2356 for(data = actives; data != NULL; data = data->next)
2357 {
2358 for(notif = data->fnotif; notif != NULL; notif = nnotif)
2359 {
2360 nnotif = notif->next;
2361 if(notif->state == NOTIF_WAIT)
2362 continue;
2363 id = -1;
2364 for(i = 0; i < notif->argc; i++)
2365 {
2366 if(notif->argv[i].dt == NOTIF_ID)
2367 {
2368 id = notif->argv[i].d.n;
2369 break;
2370 }
2371 }
2372 if(findnotif(notif->prev, 0, -1, notif->code, id) != NULL)
2373 continue;
f7292a8b 2374 sq(data->sk, 2, L"%i", notif->code, NULL);
d3372da9 2375 for(i = 0; i < notif->argc; i++)
2376 {
2377 switch(notif->argv[i].dt)
2378 {
2379 case NOTIF_INT:
2380 case NOTIF_ID:
f7292a8b 2381 sq(data->sk, 2, L"%i", notif->argv[i].d.n, NULL);
d3372da9 2382 break;
dcf7a1a2
FT		 2383 case NOTIF_OFF:
2384 sq(data->sk, 2, L"%oi", notif->argv[i].d.o, NULL);
2385 break;
d3372da9 2386 case NOTIF_STR:
2387 if(notif->argv[i].d.s[0] == L'%')
f7292a8b 2388 sq(data->sk, 2, L"%ls", notif->argv[i].d.s, NULL);
d3372da9 2389 else
2390 sq(data->sk, 2, notif->argv[i].d.s, NULL);
2391 break;
2392 case NOTIF_FLOAT:
f7292a8b 2393 sq(data->sk, 2, L"%f", notif->argv[i].d.d, NULL);
d3372da9 2394 break;
2395 }
2396 }
2397 sq(data->sk, 0, NULL);
2398 if(notif->rlimit != 0)
2399 {
2400 notif->state = NOTIF_WAIT;
2401 notif->exptimer = timercallback(ntime() + notif->rlimit, (void (*)(int, void *))notifexpire, notif);
2402 } else {
2403 freenotif(notif);
2404 }
2405 }
2406 if((qcmd = unlinkqcmd(data)) != NULL)
2407 {
2408 qcmd->cmd->handler(data->sk, data, qcmd->argc, qcmd->argv);
2409 freequeuecmd(qcmd);
2410 return(1);
2411 }
821e3843
FT		 2412 if(data->queuesize > 10)
2413 {
2414 /* Clients should not be queue up commands at all, since
2415 * they should not send a new command before receiving a
2416 * reply to the previous command. Therefore, we
2417 * mercilessly massacre clients which are stacking up too
2418 * many commands. */
2419 data->close = 1;
2420 }
d3372da9 2421 }
2422 return(0);
2423}
2424
2425static void terminate(void)
2426{
2427 while(users != NULL)
2428 freeuser(users);
ddb933f1 2429 if(tcpsocket != NULL)
2430 putsock(tcpsocket);
2431 if(unixsocket != NULL)
2432 putsock(unixsocket);
d3372da9 2433}
2434
2435static struct configvar myvars[] =
2436{
d9f89ef5 2437 /** If true, UI connections will only be accepted from localhost
2438 * addresses (127.0.0.1, ::1 or ::ffff:127.0.0.1). Unless you are
2439 * completely sure that you know what you are doing, never turn
2440 * this off when auth.authless is on. */
d3372da9 2441 {CONF_VAR_BOOL, "onlylocal", {.num = 1}},
ddb933f1 2442 /** The TCP port number on which to accept UI client connections,
2443 * or -1 to not listen on TCP. */
d3372da9 2444 {CONF_VAR_INT, "port", {.num = 1500}},
ddb933f1 2445 /**
2446 * Controls the the name to use for the Unix socket on which to
2447 * accept UI client connections. If the name contains a slash, it
2448 * is treated as a file name to bind on. If the name is "default",
2449 * the file name will be "/var/run/doldacond.sock" if doldacond
2450 * runs with UID == 0, or "/tmp/doldacond-NAME" otherwise, where
2451 * NAME is the user name of the UID which doldacond runs as. If
2452 * the name is "none", no Unix socket will be used. Otherwise, an
2453 * error is signaled.
2454 */
2455 {CONF_VAR_STRING, "unixsock", {.str = L"default"}},
d9f89ef5 2456 /** The TOS value to use for UI connections (see the TOS VALUES
2457 * section). */
d3372da9 2458 {CONF_VAR_INT, "uitos", {.num = SOCK_TOS_MINDELAY}},
d9f89ef5 2459 /** The name of the filtercmd script (see the FILES section for
2460 * lookup information). */
d3372da9 2461 {CONF_VAR_STRING, "filtercmd", {.str = L"dc-filtercmd"}},
2462 {CONF_VAR_END}
2463};
2464
2465static struct configcmd mycmds[] =
2466{
2467 {"user", conf_user},
2468 {NULL}
2469};
2470
2471static struct module me =
2472{
2473 .name = "ui",
2474 .conf =
2475 {
2476 .vars = myvars,
2477 .cmds = mycmds
2478 },
2479 .preinit = preinit,
2480 .init = init,
2481 .run = run,
2482 .terminate = terminate
2483};
2484
2485MODULE(me)
Dolda Connect