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