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Add Unix socket support.
[doldaconnect.git] / daemon / ui.c
CommitLineData
d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
3 * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com)
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#define _GNU_SOURCE
20#include <unistd.h>
21#include <stdlib.h>
22#include <malloc.h>
23#include <sys/socket.h>
24#include <netinet/in.h>
25#include <netinet/ip6.h>
504ba854 26#include <arpa/inet.h>
ddb933f1 27#include <sys/un.h>
d3372da9 28#include <errno.h>
29#include <string.h>
30#include <stdarg.h>
31#include <wchar.h>
32#include <wctype.h>
33#include <iconv.h>
34#include <pwd.h>
35#include <time.h>
36#include <fcntl.h>
37#include <signal.h>
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
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;
109 wchar_t *s;
110 double d;
111 } d;
112 } *argv;
113};
114
115struct uidata
116{
117 struct uidata *next, *prev;
118 struct socket *sk;
119 struct qcommand *queue, *queuelast;
120 struct authhandle *auth;
121 int close;
122 union
123 {
124 struct
125 {
126 int fnact:1;
127 int fnchat:1;
ba86d49a 128 int fnpeer:1;
d3372da9 129 int tract:1;
130 int trprog:1;
131 int srch:1;
5f151349 132 int msg:1;
d3372da9 133 } b;
134 int w;
135 } notify;
136 wchar_t *username;
137 struct uiuser *userinfo;
5f151349 138 int id;
139 wchar_t *regname;
d3372da9 140 uid_t uid;
141 struct notif *fnotif, *lnotif;
142 char *fcmdbuf;
143 size_t fcmdbufdata, fcmdbufsize;
144 pid_t fcmdpid;
145 struct socket *fcmdsk;
146 /* Read buffer */
147 char *inbuf;
148 size_t inbufsize, indata;
149 /* Wordset storage */
150 wchar_t **argv;
76236762 151 size_t argc, args;
d3372da9 152 /* WCS conversation stuff */
153 wchar_t *cb; /* Conversation buffer */
154 size_t cbsize, cbdata;
155 iconv_t ichandle;
156 /* Parser data */
157 int ps; /* Parser state */
158 wchar_t *pp; /* Current parse pointer */
159 wchar_t *cw; /* Current word (building storage) */
160 size_t cwsize, cwdata;
161};
162
163static int srcheta(struct search *srch, void *uudata);
164static int srchcommit(struct search *srch, void *uudata);
165static int srchres(struct search *srch, struct srchres *sr, void *uudata);
5f151349 166static struct notif *newnotif(struct uidata *data, int code, ...);
167static void notifappend(struct notif *notif, ...);
d3372da9 168
169struct uiuser *users = NULL;
170struct uidata *actives = NULL;
ddb933f1 171struct socket *tcpsocket = NULL;
172struct socket *unixsocket = NULL;
9a64a4f7 173static time_t starttime;
d3372da9 174
175static wchar_t *quoteword(wchar_t *word)
176{
177 wchar_t *wp, *buf, *bp;
178 int dq, numbs, numc;
179
180 dq = 0;
181 numbs = 0;
182 numc = 0;
183 if(*word == L'\0')
184 {
185 dq = 1;
186 } else {
187 for(wp = word; *wp != L'\0'; wp++)
188 {
189 if(!dq && iswspace(*wp))
190 dq = 1;
191 if((*wp == L'\\') || (*wp == L'\"'))
192 numbs++;
193 numc++;
194 }
195 }
196 if(!dq && !numbs)
197 return(NULL);
198 bp = buf = smalloc(sizeof(wchar_t) * (numc + numbs + (dq?2:0) + 1));
199 if(dq)
200 *(bp++) = L'\"';
201 for(wp = word; *wp != L'\0'; wp++)
202 {
203 if((*wp == L'\\') || (*wp == L'\"'))
204 *(bp++) = L'\\';
205 *(bp++) = *wp;
206 }
207 if(dq)
208 *(bp++) = L'\"';
209 *(bp++) = L'\0';
210 return(buf);
211}
212
213static void sq(struct socket *sk, int cont, ...)
214{
215 int num, freepart;
216 va_list al;
217 char *final;
218 wchar_t *buf;
219 wchar_t *part, *tpart;
220 size_t bufsize, bufdata;
221
222 buf = NULL;
223 bufsize = bufdata = 0;
224 num = 0;
225 va_start(al, cont);
226 while((part = va_arg(al, wchar_t *)) != NULL)
227 {
228 if(*part == L'%')
229 {
230 /*
231 * This kludge demands that all arguments that you call it
232 * with are the size of an int. That happens to be the
233 * case for most datatypes on most platforms and
234 * compilers, but I don't know exactly which ones, and
235 * also a long long is a notable candidate of an arg that
236 * is not the size of an int on 32-bit archs. If it breaks
237 * some existing call on your architecture, please tell
238 * me.
239 */
240 part = vswprintf2(tpart = (part + 1), al);
241 for(; *tpart != L'\0'; tpart++)
242 {
243 if(*tpart == L'%')
244 {
245 if(tpart[1] == L'%')
246 tpart++;
247 else
248 va_arg(al, int);
249 }
250 }
251 freepart = 1;
252 } else {
253 freepart = 0;
254 }
255 if((tpart = quoteword(part)) != NULL)
256 {
257 if(freepart)
258 free(part);
259 part = tpart;
260 freepart = 1;
261 }
262 if((num > 1) || ((num == 1) && !(cont & 1)))
263 addtobuf(buf, L' ');
264 bufcat(buf, part, wcslen(part));
265 if((num == 0) && (cont & 1))
266 addtobuf(buf, L'-');
267 num++;
268 if(freepart)
269 free(part);
270 }
271 if(cont & 2)
272 bufcat(buf, L" \0", 2);
273 else
274 bufcat(buf, L"\r\n\0", 3);
275 if((final = icwcstombs(buf, "utf-8")) == NULL)
276 {
277 flog(LOG_CRIT, "could not convert \"%ls\" into utf-8: %s", buf, strerror(errno));
278 free(buf);
279 return;
280 }
281 va_end(al);
282 free(buf);
283 sockqueue(sk, final, strlen(final));
284 free(final);
285}
286
287struct uiuser *finduser(wchar_t *name)
288{
289 struct uiuser *user;
290
291 for(user = users; user != NULL; user = user->next)
292 {
293 if(!wcscmp(user->name, name))
294 break;
295 }
296 return(user);
297}
298
299static void logout(struct uidata *data)
300{
301 data->userinfo = NULL;
302 if(data->username != NULL)
303 free(data->username);
304 data->username = NULL;
305 if(data->auth != NULL)
306 authputhandle(data->auth);
307 data->auth = NULL;
308}
309
310static int haspriv(struct uidata *data, int perm)
311{
312 if(data->userinfo == NULL)
313 return(0);
314 if(data->userinfo->perms & perm)
315 return(1);
316 else
317 return(0);
318}
319
320/* Useful macros for the command functions: */
321#define haveargs(n) do { if(argc < n) { sq(sk, 0, L"501", L"Wrong number of arguments", NULL); return; } } while(0)
322#define havepriv(p) do { if((data->userinfo == NULL) || ((data->userinfo->perms & (p)) != (p))) { sq(sk, 0, L"502", L"%Unauthorized request - %x needed", (p), NULL); return; } } while(0)
323
324static void cmd_connect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
325{
326 int valid;
504ba854 327 struct in6_addr mv4lo;
d3372da9 328
329 if(confgetint("ui", "onlylocal"))
330 {
331 switch(sk->remote->sa_family)
332 {
333 case AF_INET:
334 valid = ((struct sockaddr_in *)sk->remote)->sin_addr.s_addr == INADDR_LOOPBACK;
335 break;
336 case AF_INET6:
504ba854 337 inet_pton(AF_INET6, "::ffff:127.0.0.1", &mv4lo);
338 valid = 0;
339 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)))
340 valid = 1;
341 if(!memcmp(&((struct sockaddr_in6 *)sk->remote)->sin6_addr, &mv4lo, sizeof(in6addr_loopback)))
342 valid = 1;
d3372da9 343 break;
ddb933f1 344 case AF_UNIX:
345 valid = 1;
346 break;
d3372da9 347 default:
348 valid = 0;
349 break;
350 }
351 if(!valid)
352 {
353 sq(sk, 0, L"502", L"Only localhost connections allowed to this host", NULL);
354 sk->close = 1;
355 data->close = 1;
356 return;
357 }
358 }
359 sq(sk, 0, L"200", L"%Dolda Connect daemon v%s", VERSION, NULL);
360}
361
362static void cmd_notfound(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
363{
364 if((argv != NULL) && (argv[0] != NULL))
365 sq(sk, 0, L"500", L"%Command not found: %ls", argv[0], NULL);
366 else
367 sq(sk, 0, L"500", L"No command", NULL);
368}
369
370static void cmd_shutdown(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
371{
372 extern volatile int running;
373
374 havepriv(PERM_ADMIN);
375 flog(LOG_NOTICE, "UI shutdown request from %ls, shutting down", data->username);
376 running = 0;
377 sq(sk, 0, L"200", L"Daemon shutting down", NULL);
378}
379
380static void cmd_quit(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
381{
382 sq(sk, 0, L"200", L"Closing connection", NULL);
383 data->close = 1;
384}
385
386static void cmd_lsauth(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
387{
388 struct authmech *mech, *prev;
389
390 prev = NULL;
391 for(mech = mechs; mech != NULL; mech = mech->next)
392 {
393 if(mech->enabled)
394 {
395 if(prev != NULL)
396 sq(sk, 1, L"200", prev->name, NULL);
397 prev = mech;
398 }
399 }
400 if(prev == NULL)
401 sq(sk, 0, L"201", L"No authentication methods supported", NULL);
402 else
403 sq(sk, 0, L"200", prev->name, NULL);
404}
405
406static void cmd_login(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
407{
408 char *buf;
409 int code;
410 struct passwd *pwd;
411
412 haveargs(3);
413 if(data->username != NULL)
414 {
415 if(data->userinfo != NULL)
416 sq(sk, 0, L"503", L"Already logged in", NULL);
417 else
418 sq(sk, 0, L"503", L"Already logging in", NULL);
419 return;
420 }
421 if((buf = icwcstombs(argv[2], NULL)) == NULL)
422 {
423 sq(sk, 0, L"504", L"Could not convert username to locale charset", NULL);
424 return;
425 }
426 data->username = swcsdup(argv[2]);
427 if((pwd = getpwnam(buf)) == NULL)
428 data->uid = -1;
429 else
430 data->uid = pwd->pw_uid;
431 if((data->auth = initauth(argv[1], buf)) == NULL)
432 {
433 if(errno == ENOENT)
434 sq(sk, 0, L"508", L"No such authentication mechanism", NULL);
435 else
436 sq(sk, 0, L"505", L"Could not initialize authentication system", L"%%s", strerror(errno), NULL);
437 free(buf);
438 logout(data);
439 return;
440 }
441 free(buf);
442 switch(authenticate(data->auth, NULL))
443 {
444 case AUTH_SUCCESS:
445 data->userinfo = finduser(data->username);
446 if(data->userinfo == NULL)
447 data->userinfo = finduser(L"default");
448 if(data->uid == -1)
449 {
450 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 451 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 452 logout(data);
453 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
454 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 455 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 456 logout(data);
457 } else {
458 sq(sk, 0, L"200", L"Welcome", NULL);
6c9eee05 459 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
d3372da9 460 }
461 break;
462 case AUTH_DENIED:
463 sq(sk, 0, L"506", L"Authentication error", L"%%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
6c9eee05 464 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 465 logout(data);
466 break;
467 case AUTH_PASS:
468 switch(data->auth->prompt)
469 {
470 case AUTH_PR_AUTO:
471 code = 300;
472 break;
473 case AUTH_PR_NOECHO:
474 code = 301;
475 break;
476 case AUTH_PR_ECHO:
477 code = 302;
478 break;
479 case AUTH_PR_INFO:
480 code = 303;
481 break;
482 case AUTH_PR_ERROR:
483 code = 304;
484 break;
485 }
486 sq(sk, 0, L"%%i", code, data->auth->text, NULL);
487 break;
488 case AUTH_ERR:
489 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
490 logout(data);
491 break;
492 default:
493 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_login");
494 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
495 logout(data);
496 break;
497 }
498}
499
500static void cmd_pass(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
501{
502 char *buf;
503 int code;
504
505 haveargs(2);
506 if((buf = icwcstombs(argv[1], NULL)) == NULL)
507 {
508 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
509 return;
510 }
511 if((data->auth == NULL) || (data->userinfo != NULL))
512 {
513 sq(sk, 0, L"507", L"Data not expected", NULL);
514 return;
515 }
516 switch(authenticate(data->auth, buf))
517 {
518 case AUTH_SUCCESS:
519 data->userinfo = finduser(data->username);
520 if(data->userinfo == NULL)
521 data->userinfo = finduser(L"default");
522 if(data->uid == -1)
523 {
524 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 525 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 526 logout(data);
527 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
528 sq(sk, 0, L"506", L"Authentication error", NULL);
6c9eee05 529 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 530 logout(data);
531 } else {
532 sq(sk, 0, L"200", L"Welcome", NULL);
6c9eee05 533 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formataddress(sk->remote, sk->remotelen));
d3372da9 534 }
535 break;
536 case AUTH_DENIED:
537 sq(sk, 0, L"506", L"Authentication error", L"%%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
6c9eee05 538 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formataddress(sk->remote, sk->remotelen));
d3372da9 539 logout(data);
540 break;
541 case AUTH_PASS:
542 switch(data->auth->prompt)
543 {
544 case AUTH_PR_AUTO:
545 code = 300;
546 break;
547 case AUTH_PR_NOECHO:
548 code = 301;
549 break;
550 case AUTH_PR_ECHO:
551 code = 302;
552 break;
553 case AUTH_PR_INFO:
554 code = 303;
555 break;
556 case AUTH_PR_ERROR:
557 code = 304;
558 break;
559 }
560 sq(sk, 0, L"%%i", code, data->auth->text, NULL);
561 break;
562 case AUTH_ERR:
563 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
564 logout(data);
565 break;
566 default:
567 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_pass");
568 sq(sk, 0, L"505", L"System error", L"%%s", strerror(errno), NULL);
569 logout(data);
570 break;
571 }
572 free(buf);
573}
574
575static void cmd_fnetconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
576{
577 int i;
578 char *buf;
579 int err;
580 struct fnetnode *fn;
efc05613 581 struct wcspair *args;
d3372da9 582
583 haveargs(3);
584 havepriv(PERM_FNETCTL);
dd31fcfa 585 for(i = 0, fn = fnetnodes; fn != NULL; i++, fn = fn->next);
586 if((confgetint("fnet", "maxnodes") > 0) && (i >= confgetint("fnet", "maxnodes"))) {
587 sq(sk, 0, L"515", L"Too many fnetnodes connected already", NULL);
588 return;
589 }
d3372da9 590 if((buf = icwcstombs(argv[2], NULL)) == NULL)
591 {
592 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
593 return;
594 }
efc05613 595 args = NULL;
596 for(i = 3; i < argc - 1; i += 2)
597 newwcspair(argv[i], argv[i + 1], &args);
a3a4a3a7 598 fn = fnetinitconnect(argv[1], data->userinfo->name, buf, args);
d3372da9 599 err = errno;
600 free(buf);
601 if(fn == NULL)
602 {
603 if(errno == EPROTONOSUPPORT)
604 sq(sk, 0, L"511", L"No such network name", NULL);
605 else
606 sq(sk, 0, L"509", L"Could not parse the address", L"%%s", strerror(err), NULL);
607 return;
608 }
d3372da9 609 linkfnetnode(fn);
610 fnetsetname(fn, argv[2]);
edda83f2 611 sq(sk, 0, L"200", L"%%i", fn->id, L"Connection under way", NULL);
d3372da9 612 putfnetnode(fn);
d3372da9 613}
614
615static void cmd_lsnodes(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
616{
617 struct fnetnode *fn;
618
619 if(fnetnodes == NULL)
620 {
621 sq(sk, 0, L"201", L"No connected nodes", NULL);
622 return;
623 }
624 for(fn = fnetnodes; fn != NULL; fn = fn->next)
625 {
d1e8b9fd 626 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 627 }
628}
629
630static void cmd_disconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
631{
632 struct fnetnode *fn;
633 int i;
634
635 haveargs(2);
636 havepriv(PERM_FNETCTL);
637 /* Note - Programmatical user interfaces must only give one
638 * argument per command, the multiple argument form is only for
639 * convenience when manually controlling the daemon via
640 * eg. telnet. The reason is that the return codes aren't clear
641 * enough for the multiple argument form. */
642 for(i = 1; i < argc; i++)
643 {
644 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
645 {
646 sq(sk, 0, L"510", L"No such node", NULL);
647 return;
648 }
18603153 649 if(wpfind(fn->args, L"locked") && !((data->userinfo->perms & PERM_ADMIN) || !wcscmp(data->userinfo->name, fn->owner)))
650 {
651 sq(sk, 0, L"502", L"This node is locked and you are neither administrator nor its owner", NULL);
652 return;
653 }
d3372da9 654 killfnetnode(fn);
655 unlinkfnetnode(fn);
656 }
657 sq(sk, 0, L"200", L"Node flagged for disconnection", NULL);
658}
659
660static void cmd_lspa(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
661{
662 struct fnetnode *fn;
663 struct fnetpeerdatum *datum;
664
665 haveargs(2);
666 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
667 {
668 sq(sk, 0, L"510", L"No such node", NULL);
669 return;
670 }
671 if(fn->peerdata == NULL)
672 {
673 sq(sk, 0, L"201", L"No data available", NULL);
674 } else {
675 for(datum = fn->peerdata; datum != NULL; datum = datum->next)
676 sq(sk, (datum->next != NULL)?1:0, L"200", datum->id, L"%%i", datum->datatype, NULL);
677 }
678}
679
680static void cmd_lspeers(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
681{
682 int i;
683 struct fnetnode *fn;
684 struct fnetpeer *peer;
685 wchar_t buf[40];
686
687 haveargs(2);
688 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
689 {
690 sq(sk, 0, L"510", L"No such node", NULL);
691 return;
692 }
693 if(fn->peers == NULL)
694 {
695 sq(sk, 0, L"201", L"No peers avaiable", NULL);
696 } else {
697 for(peer = fn->peers; peer != NULL; peer = peer->next)
698 {
9c9a61be 699 sq(sk, 2 | ((peer->next != NULL)?1:0), L"200", L"%%ls", peer->id, L"%%ls", peer->nick, NULL);
d3372da9 700 for(i = 0; i < peer->dinum; i++)
701 {
702 if(peer->peerdi[i].datum->datatype == FNPD_INT)
703 sq(sk, 2, peer->peerdi[i].datum->id, L"%%i", peer->peerdi[i].data.num, NULL);
704 /* Note: A long long is not the size of an int, so
705 * sq() can't handle the conversion itself. */
706 if(peer->peerdi[i].datum->datatype == FNPD_LL)
707 {
708 swprintf(buf, 40, L"%lli", peer->peerdi[i].data.lnum);
709 sq(sk, 2, peer->peerdi[i].datum->id, buf, NULL);
710 }
711 if((peer->peerdi[i].datum->datatype == FNPD_STR) && (peer->peerdi[i].data.str != NULL))
6522b406 712 sq(sk, 2, peer->peerdi[i].datum->id, L"%%ls", peer->peerdi[i].data.str, NULL);
d3372da9 713 }
714 sq(sk, 0, NULL);
715 }
716 }
717}
718
719static void cmd_download(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
720{
721 int i;
722 struct fnet *net;
723 struct fnetnode *fn;
724 struct transfer *transfer;
725 struct fnetpeer *peer;
726
727 haveargs(4);
728 if((argc > 5) && ((argc % 2) == 0))
729 {
730 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
731 return;
732 }
733 havepriv(PERM_TRANS);
734 if((*(argv[1]) >= L'0') && (*(argv[1]) <= L'9'))
735 {
736 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
737 {
738 sq(sk, 0, L"510", L"No such node", NULL);
739 return;
740 }
741 net = fn->fnet;
742 } else {
743 fn = NULL;
744 if((net = findfnet(argv[1])) == NULL)
745 {
746 sq(sk, 0, L"511", L"No such network name", NULL);
747 return;
748 }
749 }
750 transfer = newtransfer();
751 authgethandle(transfer->auth = data->auth);
752 transfer->fnet = net;
753 transfer->peerid = swcsdup(argv[2]);
754 transfer->path = swcsdup(argv[3]);
755 transfer->dir = TRNSD_DOWN;
756 transfer->owner = data->uid;
757 if(fn != NULL)
758 {
759 transfer->fn = fn;
760 getfnetnode(fn);
761 linktransfer(transfer);
762 if(((peer = fnetfindpeer(fn, transfer->peerid)) != NULL) && (peer->nick != NULL))
763 transfersetnick(transfer, peer->nick);
764 } else {
765 linktransfer(transfer);
766 }
767 if(argc > 4)
768 transfersetsize(transfer, wcstol(argv[4], NULL, 0));
769 if(argc > 5)
770 {
771 for(i = 5; i < argc; i += 2)
5123bec0 772 {
773 if(!wcscmp(argv[i], L"hash"))
774 {
a04fc9ff 775 transfersethash(transfer, parsehash(argv[i + 1]));
5123bec0 776 } else {
9ec790e8 777 newwcspair(argv[i], argv[i + 1], &transfer->args);
5123bec0 778 }
779 }
d3372da9 780 }
781 sq(sk, 0, L"200", L"%%i", transfer->id, L"Download queued", NULL);
782 transfersetactivity(transfer, L"create");
783}
784
785static void cmd_lstrans(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
786{
787 struct transfer *transfer, *pt;
788
789 havepriv(PERM_TRANS);
790 pt = NULL;
791 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
792 {
793 if((transfer->dir != TRNSD_DOWN) || (transfer->owner == data->uid))
794 {
795 if(pt != NULL)
796 sq(sk, 1, L"200", L"%%i", pt->id, L"%%i", pt->dir,
797 L"%%i", pt->state, pt->peerid,
798 (pt->peernick == NULL)?L"":(pt->peernick),
799 (pt->path == NULL)?L"":(pt->path),
800 L"%%i", pt->size, L"%%i", pt->curpos,
5123bec0 801 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 802 NULL);
803 pt = transfer;
804 }
805 }
806 if(pt == NULL)
807 sq(sk, 0, L"201", L"No transfers", NULL);
808 else
809 sq(sk, 0, L"200", L"%%i", pt->id, L"%%i", pt->dir,
810 L"%%i", pt->state, pt->peerid,
811 (pt->peernick == NULL)?L"":(pt->peernick),
812 (pt->path == NULL)?L"":(pt->path),
813 L"%%i", pt->size, L"%%i", pt->curpos,
5123bec0 814 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 815 NULL);
816}
817
818static void cmd_cancel(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
819{
820 struct transfer *transfer;
821
822 haveargs(2);
823 havepriv(PERM_TRANS);
824 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
825 {
826 sq(sk, 0, L"512", L"No such transfer", NULL);
827 return;
828 }
829 if((transfer->dir == TRNSD_UP) && !(data->userinfo->perms & PERM_TRANSCU))
830 {
831 sq(sk, 0, L"502", L"You are not allowed to cancel uploads", NULL);
832 return;
833 }
834 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
835 {
836 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
837 return;
838 }
839 transfer->close = 1;
840 sq(sk, 0, L"200", L"Transfer cancelled", NULL);
841}
842
843static void cmd_notify(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
844{
845 int i, val;
846
847 if((argc % 2) != 1)
848 {
849 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
850 return;
851 }
852 for(i = 1; i < argc; i += 2)
853 {
854 if(!wcscasecmp(argv[i + 1], L"on"))
855 val = 1;
856 else
857 val = 0;
858 if(!wcscasecmp(argv[i], L"all"))
859 {
860 if(val)
861 data->notify.w = ~0;
862 else
863 data->notify.w = 0;
864 } else if(!wcscasecmp(argv[i], L"fn:chat")) {
865 data->notify.b.fnchat = val;
866 } else if(!wcscasecmp(argv[i], L"fn:act")) {
867 data->notify.b.fnact = val;
ba86d49a 868 } else if(!wcscasecmp(argv[i], L"fn:peer")) {
869 data->notify.b.fnpeer = val;
d3372da9 870 } else if(!wcscasecmp(argv[i], L"trans:act")) {
871 data->notify.b.tract = val;
872 } else if(!wcscasecmp(argv[i], L"trans:prog")) {
873 data->notify.b.trprog = val;
874 } else if(!wcscasecmp(argv[i], L"srch:act")) {
875 data->notify.b.srch = val;
5f151349 876 } else if(!wcscasecmp(argv[i], L"msg")) {
877 data->notify.b.msg = val;
d3372da9 878 }
879 }
880 sq(sk, 0, L"200", L"Notification alteration succeeded", NULL);
881}
882
883static void cmd_sendchat(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
884{
885 struct fnetnode *fn;
886 int public;
887
888 haveargs(5);
889 havepriv(PERM_CHAT);
890 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
891 {
892 sq(sk, 0, L"510", L"No such node", NULL);
893 return;
894 }
895 public = wcstol(argv[2], NULL, 0);
896 if((public != 0) && (public != 1))
897 {
898 sq(sk, 0, L"509", L"Second argument must be 0 or 1", NULL);
899 return;
900 }
901 if(fn->state != FNN_EST)
902 {
903 sq(sk, 0, L"513", L"Hub is in state FNN_EST", NULL);
904 return;
905 }
906 if(fnetsendchat(fn, public, argv[3], argv[4]))
907 {
908 if(errno == ENOTSUP)
909 sq(sk, 0, L"513", L"This network does not support chatting", NULL);
910 else if(errno == EPERM)
911 sq(sk, 0, L"502", L"This node does not allow you to chat", NULL);
912 else if(errno == EILSEQ)
913 sq(sk, 0, L"504", L"This network could not support all the characters in that message", NULL);
914 else
915 sq(sk, 0, L"505", L"Could not chat", NULL);
916 return;
917 }
918 sq(sk, 0, L"200", L"Chat string sent", NULL);
919}
920
921static void cmd_search(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
922{
923 struct search *srch;
924 struct fnetnode *fn;
925 struct sexpr *sexpr;
926 int i;
927
928 haveargs(3);
929 havepriv(PERM_SRCH);
930 srch = newsearch(data->username, NULL);
931 for(i = 1; i < argc; i++)
932 {
933 if(!wcscmp(argv[i], L"all"))
934 {
935 for(fn = fnetnodes; fn != NULL; fn = fn->next)
936 {
937 if(fn->state == FNN_EST)
938 searchaddfn(srch, fn);
939 }
940 i++;
941 break;
942 } else if(!wcscmp(argv[i], L"prio")) {
943 if(++i == argc)
944 {
945 sq(sk, 0, L"501", L"No argument to prio", NULL);
946 freesearch(srch);
947 return;
948 }
949 srch->prio = wcstol(argv[i], NULL, 0);
950 } else if(iswdigit(*argv[i])) {
951 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
952 {
953 sq(sk, 0, L"510", L"No such node", NULL);
954 freesearch(srch);
955 return;
956 }
957 searchaddfn(srch, fn);
958 } else {
959 break;
960 }
961 }
962 if(srch->fnl == NULL)
963 {
964 sq(sk, 0, L"501", L"No fnetnodes to search found on line", NULL);
965 freesearch(srch);
966 return;
967 }
968 if(i == argc)
969 {
970 sq(sk, 0, L"501", L"No search expression found on line", NULL);
971 freesearch(srch);
972 return;
973 }
974 if((sexpr = parsesexpr(argc - i, argv + i)) == NULL)
975 {
976 sq(sk, 0, L"509", L"Could not parse search expression", NULL);
977 freesearch(srch);
978 return;
979 }
980 optsexpr(sexpr);
981 getsexpr(srch->sexpr = sexpr);
982 queuesearch(srch);
983 CBREG(srch, search_eta, srcheta, NULL, NULL);
984 CBREG(srch, search_commit, srchcommit, NULL, NULL);
985 CBREG(srch, search_result, srchres, NULL, NULL);
986 sq(sk, 0, L"200", L"%%i", srch->id, L"%%i", srch->eta - time(NULL), NULL);
987 putsexpr(sexpr);
988}
989
990static void cmd_lssrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
991{
992 struct search *srch, *pt;
993 time_t now;
994
995 havepriv(PERM_SRCH);
996 pt = NULL;
997 now = time(NULL);
998 for(srch = searches; srch != NULL; srch = srch->next)
999 {
1000 if(!wcscmp(srch->owner, data->username))
1001 {
1002 if(pt != NULL)
1003 sq(sk, 1, L"200", L"%%i", pt->id, L"%%i", pt->state, L"%%i", pt->eta - now, L"%%i", pt->numres, NULL);
1004 pt = srch;
1005 }
1006 }
1007 if(pt == NULL)
1008 sq(sk, 0, L"201", L"No searches", NULL);
1009 else
1010 sq(sk, 0, L"200", L"%%i", pt->id, L"%%i", pt->state, L"%%i", pt->eta - now, L"%%i", pt->numres, NULL);
1011}
1012
1013static void cmd_lssr(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1014{
1015 struct search *srch;
1016 struct srchres *sr;
1017 wchar_t buf[64];
1018
1019 haveargs(2);
1020 havepriv(PERM_SRCH);
1021 if((srch = findsearch(wcstol(argv[1], NULL, 0))) == NULL)
1022 {
1023 sq(sk, 0, L"514", L"No such search", NULL);
1024 return;
1025 }
1026 if(srch->results == NULL)
1027 {
1028 sq(sk, 0, L"201", L"No results", NULL);
1029 } else {
1030 for(sr = srch->results; sr != NULL; sr = sr->next)
1031 {
1032 swprintf(buf, 64, L"%f", sr->time);
65643d01 1033 sq(sk, (sr->next != NULL)?1:0, L"200", L"%%ls", sr->filename, sr->fnet->name, L"%%ls", sr->peerid, L"%%i", sr->size, L"%%i", sr->slots, L"%%i", (sr->fn == NULL)?-1:(sr->fn->id), buf, L"%%ls", (sr->hash == NULL)?L"":unparsehash(sr->hash), NULL);
d3372da9 1034 }
1035 }
1036}
1037
1038static void cmd_cansrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1039{
1040 struct search *srch;
1041 int i;
1042
1043 haveargs(2);
1044 havepriv(PERM_SRCH);
1045 /* Note - Programmatical user interfaces must only give one
1046 * argument per command, the multiple argument form is only for
1047 * convenience when manually controlling the daemon via
1048 * eg. telnet. The reason is that the return codes aren't clear
1049 * enough for the multiple argument form. */
1050 for(i = 1; i < argc; i++)
1051 {
1052 if((srch = findsearch(wcstol(argv[i], NULL, 0))) == NULL)
1053 {
1054 sq(sk, 0, L"514", L"No such search", NULL);
1055 return;
1056 }
1057 freesearch(srch);
1058 }
1059 sq(sk, 0, L"200", L"Search cancelled", NULL);
1060}
1061
cab0b442 1062static void fcmdread(struct socket *sk, struct uidata *data)
d3372da9 1063{
1064 char *buf;
1065 size_t bufsize;
1066
1067 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
cab0b442 1068 return;
d3372da9 1069 bufcat(data->fcmdbuf, buf, bufsize);
1070 free(buf);
1071}
1072
cab0b442 1073static void fcmderr(struct socket *sk, int err, struct uidata *data)
d3372da9 1074{
1075 wchar_t *wbuf, *p, *p2;
1076
1077 if(err)
1078 {
1079 flog(LOG_WARNING, "error occurred on filtercmd pipe socket: %s", strerror(err));
1080 kill(-data->fcmdpid, SIGHUP);
1081 putsock(data->fcmdsk);
1082 data->fcmdsk = NULL;
1083 if(data->fcmdbuf != NULL)
1084 {
1085 free(data->fcmdbuf);
1086 data->fcmdbuf = NULL;
1087 }
1088 data->fcmdbufsize = data->fcmdbufdata = 0;
1089 sq(data->sk, 0, L"505", L"An error occurred on the pipe to the filtercmd", L"%%s", strerror(err), NULL);
cab0b442 1090 return;
d3372da9 1091 }
1092 putsock(data->fcmdsk);
1093 data->fcmdsk = NULL;
1094 data->fcmdpid = 0;
1095 if(data->fcmdbuf == NULL)
1096 {
1097 wbuf = swcsdup(L"");
1098 } else {
1099 addtobuf(data->fcmdbuf, 0);
1100 wbuf = icmbstowcs(data->fcmdbuf, NULL);
1101 free(data->fcmdbuf);
1102 }
1103 data->fcmdbuf = NULL;
1104 data->fcmdbufsize = data->fcmdbufdata = 0;
1105 if(wbuf == NULL)
1106 {
1107 sq(data->sk, 0, L"504", L"Filtercmd sent data which could not be converted from the local charset", NULL);
cab0b442 1108 return;
d3372da9 1109 }
1110 p = wbuf;
1111 for(p2 = wcschr(p, L'\n'); p2 != NULL; p2 = wcschr(p, L'\n'))
1112 {
1113 *(p2++) = L'\0';
1114 sq(data->sk, (*p2 == L'\0')?0:1, L"200", L"%%ls", p, NULL);
1115 p = p2;
1116 }
1117 if(*p == L'\0')
1118 {
1119 if(p == wbuf)
1120 sq(data->sk, 0, L"201", L"No data returned", NULL);
1121 } else {
1122 sq(data->sk, 0, L"200", L"%%ls", p, NULL);
1123 }
1124 free(wbuf);
1125}
1126
1127static void cmd_filtercmd(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1128{
1129 int i;
1130 pid_t pid;
1131 int pipe;
1132 char **cargv, **pp;
1133 char *filtercmd, *argbuf;
1134 size_t cargvsize, cargvdata;
1135 struct passwd *pwent;
1136
1137 haveargs(2);
1138 havepriv(PERM_TRANS);
1139 if((pwent = getpwuid(data->uid)) == NULL)
1140 {
1141 flog(LOG_WARNING, "no passwd entry for UI user %i", data->uid);
1142 sq(sk, 0, L"505", L"System error - Could not fork session", "Internal error", NULL);
1143 return;
1144 }
ddb933f1 1145 filtercmd = findfile(icswcstombs(confgetstr("ui", "filtercmd"), NULL, NULL), NULL, 0);
1146 if(filtercmd == NULL)
1147 filtercmd = findfile("dc-filtercmd", pwent->pw_dir, 0);
1148 if(filtercmd == NULL)
d3372da9 1149 {
1150 flog(LOG_WARNING, "could not find filtercmd executable for user %s", pwent->pw_name);
1151 sq(sk, 0, L"505", L"System error - Could not fork session", L"Could not find filtercmd executable", NULL);
1152 return;
1153 }
1154 cargv = NULL;
1155 cargvsize = cargvdata = 0;
1156 addtobuf(cargv, filtercmd);
1157 for(i = 1; i < argc; i++)
1158 {
1159 if((argbuf = icwcstombs(argv[i], NULL)) == NULL)
1160 {
1161 for(i = 0; i < cargvdata; i++)
1162 free(cargv[i]);
1163 free(cargv);
1164 sq(sk, 0, L"504", L"%Could not convert argument %i into local character set", i, L"%%s", strerror(errno), NULL);
1165 return;
1166 }
1167 addtobuf(cargv, argbuf);
1168 }
1169 addtobuf(cargv, NULL);
1170 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)
1171 {
1172 flog(LOG_WARNING, "could not fork session in filtercmd: %s", strerror(errno));
1173 sq(sk, 0, L"505", L"System error - Could not fork session", L"%%s", strerror(errno), NULL);
1174 return;
1175 }
1176 if(pid == 0)
1177 {
1178 execv(filtercmd, cargv);
1179 flog(LOG_WARNING, "could not exec filtercmd %s: %s", filtercmd, strerror(errno));
1180 exit(127);
1181 }
1182 for(pp = cargv; *pp; pp++)
1183 free(*pp);
1184 free(cargv);
1185 data->fcmdsk = wrapsock(pipe);
1186 data->fcmdpid = pid;
1187 if(data->fcmdbuf != NULL)
1188 {
1189 free(data->fcmdbuf);
1190 data->fcmdbuf = NULL;
1191 }
1192 data->fcmdbufsize = data->fcmdbufdata = 0;
cab0b442 1193 data->fcmdsk->data = data;
1194 data->fcmdsk->readcb = (void (*)(struct socket *, void *))fcmdread;
1195 data->fcmdsk->errcb = (void (*)(struct socket *, int, void *))fcmderr;
d3372da9 1196}
1197
1198static void cmd_lstrarg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1199{
1200 struct transfer *transfer;
9ec790e8 1201 struct wcspair *ta;
d3372da9 1202
1203 haveargs(2);
1204 havepriv(PERM_TRANS);
1205 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
1206 {
1207 sq(sk, 0, L"512", L"No such transfer", NULL);
1208 return;
1209 }
1210 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
1211 {
1212 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
1213 return;
1214 }
1215 if(transfer->args == NULL)
1216 {
1217 sq(sk, 0, L"201", L"Transfer has no arguments", NULL);
1218 } else {
1219 for(ta = transfer->args; ta != NULL; ta = ta->next)
9ec790e8 1220 sq(sk, ta->next != NULL, L"200", L"%%ls", ta->key, L"%%ls", ta->val, NULL);
d3372da9 1221 }
1222}
1223
1224static void cmd_hashstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1225{
1226 struct sharecache *node;
1227 int total, hashed;
1228
1229 total = hashed = 0;
1230 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1231 {
1232 if(node->f.b.type == FILE_REG)
1233 {
1234 total++;
1235 if(node->f.b.hastth)
1236 hashed++;
1237 }
1238 }
1239 sq(sk, 0, L"200", L"%%i", total, L"tth", L"%%i", hashed, NULL);
1240}
1241
796283c6 1242static void cmd_transstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1243{
1244 wchar_t *buf1, *buf2;
1245
1246 havepriv(PERM_TRANS);
1247 buf1 = swprintf2(L"%lli", bytesdownload);
1248 buf2 = swprintf2(L"%lli", bytesupload);
c26de38e 1249 sq(sk, 0, L"200", L"down", L"%%ls", buf1, L"up", L"%%ls", buf2, NULL);
796283c6 1250 free(buf1);
1251 free(buf2);
1252}
1253
5f151349 1254static void cmd_register(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1255{
1256 struct uidata *d2;
1257
1258 haveargs(2);
1259 if(data->userinfo == NULL) {
1260 sq(sk, 0, L"502", L"Must be logged in", NULL);
1261 return;
1262 }
1263 if(argv[1][0] == L'#') {
1264 sq(sk, 0, L"509", L"Name must not begin with a hash sign", NULL);
1265 return;
1266 }
1267 for(d2 = actives; d2 != NULL; d2 = d2->next) {
7b2663a4 1268 if((d2 != data) && (d2->userinfo == data->userinfo) && d2->regname && !wcscmp(d2->regname, argv[1])) {
5f151349 1269 sq(sk, 0, L"516", L"Name already in use", NULL);
1270 return;
1271 }
1272 }
1273 if(data->regname != NULL)
1274 free(data->regname);
1275 data->regname = swcsdup(argv[1]);
1276 sq(sk, 0, L"200", L"Registered", NULL);
1277}
1278
1279static void cmd_sendmsg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1280{
1281 int i, rcptid;
1282 struct uidata *rcpt;
1283 wchar_t *myname;
1284 struct notif *notif;
1285
1286 haveargs(2);
1287 if(data->userinfo == NULL) {
1288 sq(sk, 0, L"502", L"Must be logged in", NULL);
1289 return;
1290 }
1291 if(argv[1][0] == L'#') {
1292 rcptid = wcstol(argv[1] + 1, NULL, 0);
1293 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1294 if((rcpt->userinfo == data->userinfo) && (rcpt->id == rcptid))
5f151349 1295 break;
1296 }
1297 } else {
1298 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1299 if((rcpt->userinfo == data->userinfo) && rcpt->regname && !wcscmp(rcpt->regname, argv[1]))
5f151349 1300 break;
1301 }
1302 }
1303 if(rcpt == NULL) {
1304 sq(sk, 0, L"517", L"No such recipient", NULL);
1305 return;
1306 }
1307 if(!rcpt->notify.b.msg) {
1308 sq(sk, 0, L"518", L"Recipient not listening for messages", NULL);
1309 return;
1310 }
1311 if(data->regname != NULL)
1312 myname = swcsdup(data->regname);
1313 else
1314 myname = swprintf2(L"#%i", data->id);
1315 notif = newnotif(rcpt, 640, NOTIF_STR, myname, NOTIF_END);
1316 for(i = 2; i < argc; i++)
1317 notifappend(notif, NOTIF_STR, argv[i], NOTIF_END);
1318 sq(sk, 0, L"200", L"Message sent", NULL);
1319}
1320
9a64a4f7 1321static void cmd_uptime(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1322{
1323 sq(sk, 0, L"200", L"%%i", time(NULL) - starttime, NULL);
1324}
1325
d3372da9 1326#undef haveargs
1327#undef havepriv
1328
1329/*
1330 * Reserved command numbers for nameless commands:
1331 * 0: Issued when a client has connected
1332 * 1: Issued when a named command couldn't be found
1333 */
1334
1335static struct command commands[] =
1336{
1337 {NULL, cmd_connect},
1338 {NULL, cmd_notfound},
1339 {L"shutdown", cmd_shutdown},
1340 {L"quit", cmd_quit},
1341 {L"lsauth", cmd_lsauth},
1342 {L"login", cmd_login},
1343 {L"pass", cmd_pass},
1344 {L"cnct", cmd_fnetconnect},
1345 {L"lsnodes", cmd_lsnodes},
1346 {L"dcnct", cmd_disconnect},
1347 {L"lspa", cmd_lspa},
1348 {L"lspeers", cmd_lspeers},
1349 {L"download", cmd_download},
1350 {L"lstrans", cmd_lstrans},
1351 {L"cancel", cmd_cancel},
1352 {L"notify", cmd_notify},
1353 {L"sendchat", cmd_sendchat},
1354 {L"search", cmd_search},
1355 {L"lssrch", cmd_lssrch},
1356 {L"lssr", cmd_lssr},
1357 {L"cansrch", cmd_cansrch},
1358 {L"filtercmd", cmd_filtercmd},
1359 {L"lstrarg", cmd_lstrarg},
1360 {L"hashstatus", cmd_hashstatus},
796283c6 1361 {L"transstatus", cmd_transstatus},
5f151349 1362 {L"register", cmd_register},
1363 {L"sendmsg", cmd_sendmsg},
9a64a4f7 1364 {L"uptime", cmd_uptime},
d3372da9 1365 {NULL, NULL}
1366};
1367
1368static void freequeuecmd(struct qcommand *qcmd)
1369{
1370 int i;
1371
1372 if(qcmd->argv != NULL)
1373 {
1374 for(i = 0; i < qcmd->argc; i++)
1375 free(qcmd->argv[i]);
1376 free(qcmd->argv);
1377 }
1378 free(qcmd);
1379}
1380
1381static struct qcommand *unlinkqcmd(struct uidata *data)
1382{
1383 struct qcommand *qcmd;
1384
1385 qcmd = data->queue;
1386 if(qcmd != NULL)
1387 {
1388 data->queue = qcmd->next;
1389 if(qcmd == data->queuelast)
1390 data->queuelast = qcmd->next;
1391 }
1392 return(qcmd);
1393}
1394
ba86d49a 1395static void notifappendv(struct notif *notif, va_list args)
d3372da9 1396{
d3372da9 1397 int dt, ca;
1398
d3372da9 1399 while((dt = va_arg(args, int)) != NOTIF_END)
1400 {
1401 ca = notif->argc;
1402 notif->argv = realloc(notif->argv, sizeof(*notif->argv) * ++notif->argc);
1403 notif->argv[ca].dt = dt;
1404 switch(dt)
1405 {
1406 case NOTIF_INT:
1407 case NOTIF_ID:
1408 notif->argv[ca].d.n = va_arg(args, int);
1409 break;
1410 case NOTIF_STR:
1411 notif->argv[ca].d.s = wcsdup(va_arg(args, wchar_t *));
1412 break;
1413 case NOTIF_FLOAT:
1414 notif->argv[ca].d.d = va_arg(args, double);
1415 break;
1416 }
1417 }
ba86d49a 1418}
1419
1420static void notifappend(struct notif *notif, ...)
1421{
1422 va_list args;
1423
1424 va_start(args, notif);
1425 notifappendv(notif, args);
1426 va_end(args);
1427}
1428
1429static struct notif *newnotif(struct uidata *data, int code, ...)
1430{
1431 struct notif *notif;
1432 va_list args;
1433
1434 notif = smalloc(sizeof(*notif));
1435 memset(notif, 0, sizeof(*notif));
1436 notif->rlimit = 0.0;
1437 notif->ui = data;
1438 notif->code = code;
1439 va_start(args, code);
1440 notifappendv(notif, args);
d3372da9 1441 va_end(args);
1442 notif->next = NULL;
1443 notif->prev = data->lnotif;
1444 if(data->lnotif != NULL)
1445 data->lnotif->next = notif;
1446 else
1447 data->fnotif = notif;
1448 data->lnotif = notif;
1449 return(notif);
1450}
1451
1452static void freenotif(struct notif *notif)
1453{
1454 int i;
1455
1456 if(notif->next != NULL)
1457 notif->next->prev = notif->prev;
1458 if(notif->prev != NULL)
1459 notif->prev->next = notif->next;
1460 if(notif == notif->ui->fnotif)
1461 notif->ui->fnotif = notif->next;
1462 if(notif == notif->ui->lnotif)
1463 notif->ui->lnotif = notif->prev;
1464 if(notif->exptimer != NULL)
1465 canceltimer(notif->exptimer);
1466 for(i = 0; i < notif->argc; i++)
1467 {
1468 if(notif->argv[i].dt == NOTIF_STR)
1469 free(notif->argv[i].d.s);
1470 }
1471 if(notif->argv != NULL)
1472 free(notif->argv);
1473 free(notif);
1474}
1475
1476static void notifexpire(int cancelled, struct notif *notif)
1477{
1478 notif->exptimer = NULL;
1479 if(!cancelled)
1480 freenotif(notif);
1481}
1482
1483static struct notif *findnotif(struct notif *notif, int dir, int state, int code, int id)
1484{
1485 int i, cont;
1486
1487 for(; notif != NULL; notif = (dir?notif->next:notif->prev))
1488 {
1489 if((notif->code == code) && ((state < 0) || (state == notif->state)))
1490 {
1491 cont = 0;
1492 if(id >= 0)
1493 {
1494 for(i = 0; i < notif->argc; i++)
1495 {
1496 if((notif->argv[i].dt == NOTIF_ID) && (notif->argv[i].d.n != id))
1497 {
1498 cont = 1;
1499 break;
1500 }
1501 }
1502 }
1503 if(cont)
1504 continue;
1505 break;
1506 }
1507 }
1508 return(notif);
1509}
1510
1511static void freeuidata(struct uidata *data)
1512{
1513 int i;
1514 struct qcommand *qcmd;
1515
1516 if(data->next != NULL)
1517 data->next->prev = data->prev;
1518 if(data->prev != NULL)
1519 data->prev->next = data->next;
1520 if(data == actives)
1521 actives = data->next;
cab0b442 1522 data->sk->readcb = NULL;
1523 data->sk->errcb = NULL;
d3372da9 1524 putsock(data->sk);
1525 while((qcmd = unlinkqcmd(data)) != NULL)
1526 freequeuecmd(qcmd);
1527 iconv_close(data->ichandle);
1528 if(data->cw != NULL)
1529 free(data->cw);
1530 if(data->cb != NULL)
1531 free(data->cb);
1532 if(data->argv != NULL)
1533 {
1534 for(i = 0; i < data->argc; i++)
1535 free(data->argv[i]);
1536 free(data->argv);
1537 }
1538 if(data->auth != NULL)
1539 authputhandle(data->auth);
5f151349 1540 if(data->regname != NULL)
1541 free(data->regname);
d3372da9 1542 if(data->username != NULL)
1543 {
1544 if(data->userinfo != NULL)
1545 flog(LOG_INFO, "%ls logged out", data->username);
1546 free(data->username);
1547 }
1548 free(data->inbuf);
1549 while(data->fnotif != NULL)
1550 freenotif(data->fnotif);
1551 if(data->fcmdbuf != NULL)
1552 free(data->fcmdbuf);
1553 if(data->fcmdpid != 0)
1554 kill(-data->fcmdpid, SIGHUP);
1555 if(data->fcmdsk != NULL)
1556 putsock(data->fcmdsk);
1557 free(data);
1558}
1559
1560static void queuecmd(struct uidata *data, struct command *cmd, int argc, wchar_t **argv)
1561{
1562 struct qcommand *new;
1563
1564 new = smalloc(sizeof(*new));
1565 new->cmd = cmd;
1566 new->argc = argc;
1567 new->argv = argv;
1568 new->next = NULL;
1569 if(data->queuelast != NULL)
1570 data->queuelast->next = new;
1571 data->queuelast = new;
1572 if(data->queue == NULL)
1573 data->queue = new;
1574}
1575
1576static struct uidata *newuidata(struct socket *sk)
1577{
1578 struct uidata *data;
5f151349 1579 static int curid = 0;
d3372da9 1580
1581 data = smalloc(sizeof(*data));
1582 memset(data, 0, sizeof(*data));
5f151349 1583 data->id = curid++;
d3372da9 1584 data->sk = sk;
1585 getsock(sk);
1586 data->inbuf = smalloc(1024);
1587 data->uid = -1;
1588 if((data->ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1)
1589 {
1590 flog(LOG_CRIT, "iconv cannot handle UTF-8: %s", strerror(errno));
1591 return(NULL);
1592 }
1593 data->next = actives;
1594 data->prev = NULL;
1595 if(actives != NULL)
1596 actives->prev = data;
1597 actives = data;
1598 return(data);
1599}
1600
cab0b442 1601static void uiread(struct socket *sk, struct uidata *data)
d3372da9 1602{
1603 int ret, done;
1604 char *newbuf;
1605 char *p1, *p2;
1606 wchar_t *porig;
1607 size_t datalen, len2;
1608 struct command *cur;
1609
1610 if(data->indata > 1024)
1611 data->indata = 0;
1612 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 1613 return;
d3372da9 1614 sizebuf(&data->inbuf, &data->inbufsize, data->indata + datalen, 1, 1);
1615 memcpy(data->inbuf + data->indata, newbuf, datalen);
1616 free(newbuf);
1617 data->indata += datalen;
1618 if(data->cb == NULL)
1619 {
1620 data->cb = smalloc(sizeof(wchar_t) * (data->cbsize = 64));
1621 data->cbdata = 0;
1622 data->pp = data->cb;
1623 }
1624 done = 0;
1625 while(!done)
1626 {
1627 if(data->cbsize == data->cbdata)
1628 {
1629 len2 = data->pp - data->cb;
1630 data->cb = srealloc(data->cb, sizeof(wchar_t) * (data->cbsize *= 2));
1631 data->pp = data->cb + len2;
1632 }
1633 p1 = data->inbuf;
1634 p2 = (char *)(porig = (data->cb + data->cbdata));
1635 len2 = sizeof(wchar_t) * (data->cbsize - data->cbdata);
1636 ret = iconv(data->ichandle, &p1, &data->indata, &p2, &len2);
1637 memmove(data->inbuf, p1, data->indata);
1638 /* Just a sanity check */
1639 if(((p2 - ((char *)data->cb)) % sizeof(wchar_t)) != 0)
1640 {
1641 flog(LOG_CRIT, "Aiya! iconv does strange things to our wchar_t's!");
1642 abort();
1643 }
1644 data->cbdata += (((wchar_t *)p2) - porig);
1645 if(ret < 0)
1646 {
1647 switch(errno)
1648 {
1649 case EILSEQ:
1650 /* XXX: Should this really just ignore it? */
1651 data->indata = 0;
1652 done = 1;
1653 break;
1654 case EINVAL:
1655 done = 1;
1656 break;
1657 case E2BIG:
1658 /* Just a sanity check */
1659 if(data->cbsize != data->cbdata)
1660 {
1661 flog(LOG_CRIT, "Aiya! iconv doesn't give us wchar_t's!");
1662 abort();
1663 }
1664 break;
1665 default:
1666 flog(LOG_WARNING, "bug: strange error from iconv in uiread: %s", strerror(errno));
1667 break;
1668 }
1669 } else {
1670 done = 1;
1671 }
1672 }
1673 done = 0;
1674 while(!done && (data->pp - data->cb < data->cbdata))
1675 {
1676 switch(data->ps)
1677 {
1678 case 0:
1679 if(iswspace(*data->pp))
1680 {
1681 if(*data->pp == L'\r')
1682 {
1683 if(data->pp == data->cb + data->cbdata - 1)
1684 {
1685 done = 1;
1686 break;
1687 }
1688 if(*(++data->pp) == L'\n')
1689 {
1690 if((data->argv != NULL) && (data->argv[0] != NULL))
1691 {
1692 for(cur = commands; cur->handler != NULL; cur++)
1693 {
1694 if(cur->name == NULL)
1695 continue;
1696 if(!wcscasecmp(cur->name, data->argv[0]))
1697 {
1698 queuecmd(data, cur, data->argc, data->argv);
1699 break;
1700 }
1701 }
1702 if(cur->handler == NULL)
1703 queuecmd(data, &commands[1], data->argc, data->argv);
1704 } else {
1705 queuecmd(data, &commands[1], data->argc, data->argv);
1706 }
1707 data->argv = NULL;
1708 data->args = 0;
1709 data->argc = 0;
1710 wmemmove(data->cb, data->pp, data->cbdata -= (data->pp - data->cb));
1711 data->pp = data->cb;
1712 } else {
1713 data->pp++;
1714 }
1715 } else {
1716 data->pp++;
1717 }
1718 } else {
1719 data->ps = 1;
1720 data->cwdata = 0;
1721 }
1722 break;
1723 case 1:
1724 if(iswspace(*data->pp))
1725 {
1726 addtobuf(data->cw, L'\0');
1727 sizebuf(&data->argv, &data->args, data->argc + 1, sizeof(*data->argv), 1);
1728 data->argv[data->argc++] = data->cw;
1729 data->cw = NULL;
1730 data->cwsize = 0;
1731 data->cwdata = 0;
1732 data->ps = 0;
1733 } else if(*data->pp == L'\"') {
1734 data->ps = 2;
1735 data->pp++;
1736 } else if(*data->pp == L'\\') {
1737 if(data->pp == data->cb + data->cbdata - 1)
1738 {
1739 done = 1;
1740 break;
1741 }
1742 addtobuf(data->cw, *(++data->pp));
1743 data->pp++;
1744 } else {
1745 addtobuf(data->cw, *(data->pp++));
1746 }
1747 break;
1748 case 2:
1749 if(*data->pp == L'\"')
1750 {
1751 data->ps = 1;
1752 } else if(*data->pp == L'\\') {
1753 if(data->pp == data->cb + data->cbdata - 1)
1754 {
1755 done = 1;
1756 break;
1757 }
1758 addtobuf(data->cw, *(++(data->pp)));
1759 } else {
1760 addtobuf(data->cw, *data->pp);
1761 }
1762 data->pp++;
1763 break;
1764 }
1765 }
1766}
1767
cab0b442 1768static void uierror(struct socket *sk, int err, struct uidata *data)
d3372da9 1769{
1770 if(err)
1771 flog(LOG_WARNING, "error occurred on UI socket: %s", strerror(err));
1772 freeuidata(data);
1773}
1774
cab0b442 1775static void uiaccept(struct socket *sk, struct socket *newsk, void *data)
d3372da9 1776{
1777 struct uidata *uidata;
1778
cab0b442 1779 newsk->data = uidata = newuidata(newsk);
d3372da9 1780 socksettos(newsk, confgetint("ui", "uitos"));
1781 if(uidata == NULL)
cab0b442 1782 return;
1783 newsk->errcb = (void (*)(struct socket *, int, void *))uierror;
1784 newsk->readcb = (void (*)(struct socket *, void *))uiread;
d3372da9 1785 queuecmd(uidata, &commands[0], 0, NULL);
1786}
1787
1788static int srcheta(struct search *srch, void *uudata)
1789{
1790 struct uidata *data;
1791
1792 for(data = actives; data != NULL; data = data->next)
1793 {
1794 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1795 newnotif(data, 620, NOTIF_ID, srch->id, NOTIF_INT, srch->eta - time(NULL), NOTIF_END);
1796 }
1797 return(0);
1798}
1799
1800static int srchcommit(struct search *srch, void *uudata)
1801{
1802 struct uidata *data;
1803
1804 for(data = actives; data != NULL; data = data->next)
1805 {
1806 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1807 newnotif(data, 621, NOTIF_ID, srch->id, NOTIF_END);
1808 }
1809 return(0);
1810}
1811
1812static int srchres(struct search *srch, struct srchres *sr, void *uudata)
1813{
1814 struct uidata *data;
1815
1816 for(data = actives; data != NULL; data = data->next)
1817 {
1818 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
ebbc13f3 1819 {
ebbc13f3 1820 newnotif(data, 622, NOTIF_ID, srch->id, NOTIF_STR, sr->filename, NOTIF_STR, sr->fnet->name, NOTIF_STR, sr->peerid, NOTIF_INT, sr->size,
5123bec0 1821 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 1822 }
d3372da9 1823 }
1824 return(0);
1825}
1826
1827static int recvchat(struct fnetnode *fn, int public, wchar_t *name, wchar_t *peer, wchar_t *string, void *uudata)
1828{
1829 struct uidata *data;
1830
1831 for(data = actives; data != NULL; data = data->next)
1832 {
1833 if(haspriv(data, PERM_CHAT) && data->notify.b.fnchat)
1834 newnotif(data, 600, NOTIF_ID, fn->id, NOTIF_INT, public, NOTIF_STR, name, NOTIF_STR, peer, NOTIF_STR, string, NOTIF_END);
1835 }
1836 return(0);
1837}
1838
1839static int fnactive(struct fnetnode *fn, wchar_t *attrib, void *uudata)
1840{
1841 struct uidata *data;
1842 struct notif *notif;
1843
1844 if(!wcscmp(attrib, L"state"))
1845 {
1846 for(data = actives; data != NULL; data = data->next)
1847 {
1848 if(data->notify.b.fnact)
1849 newnotif(data, 601, NOTIF_ID, fn->id, NOTIF_INT, fn->state, NOTIF_END);
1850 }
1851 } else if(!wcscmp(attrib, L"name")) {
1852 for(data = actives; data != NULL; data = data->next)
1853 {
1854 if(data->notify.b.fnact)
1855 newnotif(data, 602, NOTIF_ID, fn->id, NOTIF_STR, fn->name, NOTIF_END);
1856 }
1857 } else if(!wcscmp(attrib, L"numpeers")) {
1858 for(data = actives; data != NULL; data = data->next)
1859 {
1860 if(data->notify.b.fnact)
1861 {
1862 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 605, fn->id)) != NULL)
1863 notif->argv[1].d.n = fn->numpeers;
1864 else
ba86d49a 1865 newnotif(data, 605, NOTIF_ID, fn->id, NOTIF_INT, fn->numpeers, NOTIF_END)->rlimit = 0.5;
d3372da9 1866 }
1867 }
1868 }
1869 return(0);
1870}
1871
1872static int fnunlink(struct fnetnode *fn, void *uudata)
1873{
1874 struct uidata *data;
1875
1876 for(data = actives; data != NULL; data = data->next)
1877 {
1878 if(data->notify.b.fnact)
1879 newnotif(data, 603, NOTIF_ID, fn->id, NOTIF_END);
1880 }
1881 return(0);
1882}
1883
ba86d49a 1884static int peernew(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1885{
1886 struct uidata *data;
1887
1888 for(data = actives; data != NULL; data = data->next)
1889 {
1890 if(data->notify.b.fnpeer)
1891 newnotif(data, 630, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1892 }
1893 return(0);
1894}
1895
1896static int peerdel(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1897{
1898 struct uidata *data;
1899
1900 for(data = actives; data != NULL; data = data->next)
1901 {
1902 if(data->notify.b.fnpeer)
1903 newnotif(data, 631, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_END);
1904 }
1905 return(0);
1906}
1907
1908static int peerchange(struct fnetnode *fn, struct fnetpeer *peer, struct fnetpeerdi *di, void *uudata)
1909{
1910 struct uidata *data;
1911 struct notif *notif;
1912 wchar_t buf[32];
1913
1914 for(data = actives; data != NULL; data = data->next)
1915 {
1916 if(data->notify.b.fnpeer)
1917 {
1918 for(notif = data->fnotif; notif != NULL; notif = notif->next)
1919 {
1920 if((notif->code == 632) && (notif->state == NOTIF_PEND) && (notif->argv[0].d.n == fn->id) && !wcscmp(notif->argv[1].d.s, peer->id))
1921 break;
1922 }
1923 if(notif == NULL)
1924 notif = newnotif(data, 632, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1925 notifappend(notif, NOTIF_STR, di->datum->id, NOTIF_INT, di->datum->datatype, NOTIF_END);
1926 switch(di->datum->datatype)
1927 {
1928 case FNPD_INT:
1929 notifappend(notif, NOTIF_INT, di->data.num, NOTIF_END);
1930 break;
1931 case FNPD_STR:
1932 notifappend(notif, NOTIF_STR, di->data.str, NOTIF_END);
1933 break;
1934 case FNPD_LL:
1935 swprintf(buf, sizeof(buf) / sizeof(*buf), L"%lli", di->data.lnum);
1936 notifappend(notif, NOTIF_STR, buf, NOTIF_END);
1937 break;
1938 }
1939 }
1940 }
1941 return(0);
1942}
1943
d3372da9 1944static int newfnetnode(struct fnetnode *fn, void *uudata)
1945{
1946 struct uidata *data;
1947
1948 for(data = actives; data != NULL; data = data->next)
1949 {
1950 if(data->notify.b.fnact)
1951 newnotif(data, 604, NOTIF_ID, fn->id, NOTIF_STR, fn->fnet->name, NOTIF_END);
1952 }
1953 CBREG(fn, fnetnode_ac, fnactive, NULL, NULL);
1954 CBREG(fn, fnetnode_chat, recvchat, NULL, NULL);
1955 CBREG(fn, fnetnode_unlink, fnunlink, NULL, NULL);
ba86d49a 1956 CBREG(fn, fnetpeer_new, peernew, NULL, NULL);
1957 CBREG(fn, fnetpeer_del, peerdel, NULL, NULL);
1958 CBREG(fn, fnetpeer_chdi, peerchange, NULL, NULL);
d3372da9 1959 return(0);
1960}
1961
1962static int transferchattr(struct transfer *transfer, wchar_t *attrib, void *uudata)
1963{
1964 struct uidata *data;
1965
1966 if(!wcscmp(attrib, L"state"))
1967 {
1968 for(data = actives; data != NULL; data = data->next)
1969 {
1970 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1971 newnotif(data, 611, NOTIF_ID, transfer->id, NOTIF_INT, transfer->state, NOTIF_END);
1972 }
1973 } else if(!wcscmp(attrib, L"nick")) {
1974 for(data = actives; data != NULL; data = data->next)
1975 {
1976 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1977 newnotif(data, 612, NOTIF_ID, transfer->id, NOTIF_STR, transfer->peernick, NOTIF_END);
1978 }
1979 } else if(!wcscmp(attrib, L"size")) {
1980 for(data = actives; data != NULL; data = data->next)
1981 {
1982 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1983 newnotif(data, 613, NOTIF_ID, transfer->id, NOTIF_INT, transfer->size, NOTIF_END);
1984 }
1985 } else if(!wcscmp(attrib, L"error")) {
1986 for(data = actives; data != NULL; data = data->next)
1987 {
1988 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1989 newnotif(data, 614, NOTIF_ID, transfer->id, NOTIF_INT, transfer->error, NOTIF_END);
1990 }
1991 } else if(!wcscmp(attrib, L"path")) {
1992 for(data = actives; data != NULL; data = data->next)
1993 {
1994 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
1995 newnotif(data, 616, NOTIF_ID, transfer->id, NOTIF_STR, transfer->path, NOTIF_END);
1996 }
a04fc9ff 1997 } else if(!wcscmp(attrib, L"hash")) {
1998 for(data = actives; data != NULL; data = data->next)
1999 {
2000 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
5e13cdca 2001 newnotif(data, 618, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->hash == NULL)?L"":unparsehash(transfer->hash), NOTIF_END);
a04fc9ff 2002 }
d3372da9 2003 }
2004 return(0);
2005}
2006
2007static int transferprog(struct transfer *transfer, void *uudata)
2008{
2009 struct uidata *data;
2010 struct notif *notif;
2011
2012 for(data = actives; data != NULL; data = data->next)
2013 {
2014 if(haspriv(data, PERM_TRANS) && data->notify.b.trprog && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2015 {
2016 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 615, transfer->id)) != NULL)
2017 notif->argv[1].d.n = transfer->curpos;
2018 else
2019 newnotif(data, 615, NOTIF_ID, transfer->id, NOTIF_INT, transfer->curpos, NOTIF_END)->rlimit = 0.5;
2020 }
2021 }
2022 return(0);
2023}
2024
2025static int transferdestroyed(struct transfer *transfer, void *uudata)
2026{
2027 struct uidata *data;
2028
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)))
3d204c2d 2032 newnotif(data, 617, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->exitstatus == NULL)?L"":(transfer->exitstatus), NOTIF_END);
d3372da9 2033 }
2034 return(0);
2035}
2036
2037static int newtransfernotify(struct transfer *transfer, void *uudata)
2038{
2039 struct uidata *data;
2040
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, 610, NOTIF_ID, transfer->id, NOTIF_INT, transfer->dir, NOTIF_STR, transfer->peerid, NOTIF_STR, (transfer->path == NULL)?L"":transfer->path, NOTIF_END);
2045 }
2046 CBREG(transfer, trans_ac, transferchattr, NULL, NULL);
2047 CBREG(transfer, trans_p, transferprog, NULL, NULL);
2048 CBREG(transfer, trans_destroy, transferdestroyed, NULL, NULL);
2049 return(0);
2050}
2051
2052static struct uiuser *newuser(wchar_t *name, unsigned long perms)
2053{
2054 struct uiuser *new;
2055
2056 new = smalloc(sizeof(*new));
2057 new->used = 0;
2058 new->name = swcsdup(name);
2059 new->perms = perms;
2060 new->delete = 0;
2061 new->next = users;
2062 new->prev = NULL;
2063 if(users != NULL)
2064 users->prev = new;
2065 users = new;
2066 return(new);
2067}
2068
2069static void freeuser(struct uiuser *user)
2070{
2071 if(user->next != NULL)
2072 user->next->prev = user->prev;
2073 if(user->prev != NULL)
2074 user->prev->next = user->next;
2075 if(user == users)
2076 users = user->next;
2077 free(user->name);
2078 free(user);
2079}
2080
2081static int conf_user(int argc, wchar_t **argv)
2082{
2083 int i, perms, permmod;
2084 struct uiuser *user;
2085 wchar_t *p;
2086
2087 if(argc < 3)
2088 {
2089 flog(LOG_WARNING, "not enough arguments given for user command");
2090 return(1);
2091 }
2092 perms = 0;
2093 for(i = 2; i < argc; i++)
2094 {
2095 if(!iswalpha(argv[i][0]))
2096 p = argv[i] + 1;
2097 else
2098 p = argv[i];
2099 if(!wcscmp(p, L"disallow"))
2100 permmod = PERM_DISALLOW;
2101 if(!wcscmp(p, L"admin"))
2102 permmod = PERM_ADMIN;
2103 if(!wcscmp(p, L"fnetctl"))
2104 permmod = PERM_FNETCTL;
2105 if(!wcscmp(p, L"trans"))
2106 permmod = PERM_TRANS;
2107 if(!wcscmp(p, L"transcu"))
2108 permmod = PERM_TRANSCU;
2109 if(!wcscmp(p, L"chat"))
2110 permmod = PERM_CHAT;
2111 if(!wcscmp(p, L"srch"))
2112 permmod = PERM_SRCH;
2113 if(!wcscmp(p, L"all"))
2114 permmod = ~0;
2115 if(argv[i][0] == L'-')
2116 perms &= ~permmod;
2117 else
2118 perms |= permmod;
2119 }
2120 if((user = finduser(argv[1])) == NULL)
2121 {
2122 newuser(argv[1], perms);
2123 } else {
2124 user->delete = 0;
2125 user->perms = perms;
2126 }
2127 return(0);
2128}
2129
2130static void preinit(int hup)
2131{
2132 struct uiuser *user;
2133
2134 if(!hup)
2135 {
2136 newuser(L"default", 0);
2137 } else {
2138 for(user = users; user != NULL; user = user->next)
2139 {
2140 if(!wcscmp(user->name, L"default"))
2141 user->delete = 1;
2142 }
2143 }
2144}
2145
ddb933f1 2146static struct sockaddr_un *makeunixname(void)
2147{
2148 static struct sockaddr_un buf;
2149 char *val;
2150 struct passwd *pwd;
2151 uid_t uid;
2152
2153 memset(&buf, 0, sizeof(buf));
2154 buf.sun_family = PF_UNIX;
2155 if((val = icswcstombs(confgetstr("ui", "unixsock"), NULL, NULL)) == NULL) {
2156 flog(LOG_WARNING, "could not map Unix socket name into local charset: %s", strerror(errno));
2157 return(NULL);
2158 }
2159 if(!strcmp(val, "none"))
2160 return(NULL);
2161 if(!strcmp(val, "default"))
2162 {
2163 if((uid = getuid()) == 0)
2164 {
2165 strcpy(buf.sun_path, "/var/run/doldacond.sock");
2166 return(&buf);
2167 } else {
2168 if((pwd = getpwuid(uid)) == NULL)
2169 {
2170 flog(LOG_ERR, "could not get passwd entry for current user: %s", strerror(errno));
2171 return(NULL);
2172 }
2173 strcpy(buf.sun_path, "/tmp/doldacond-");
2174 strcat(buf.sun_path, pwd->pw_name);
2175 return(&buf);
2176 }
2177 }
2178 if(strchr(val, '/'))
2179 {
2180 strcpy(buf.sun_path, val);
2181 return(&buf);
2182 }
2183 flog(LOG_WARNING, "invalid Unix socket name: %s", val);
2184 return(NULL);
2185}
2186
2187static int tcpportupdate(struct configvar *var, void *uudata)
d3372da9 2188{
d3372da9 2189 struct socket *newsock;
2190
ddb933f1 2191 newsock = NULL;
2192 if((var->val.num != -1) && ((newsock = netcstcplisten(var->val.num, 1, uiaccept, NULL)) == NULL))
d3372da9 2193 {
ddb933f1 2194 flog(LOG_WARNING, "could not create new TCP UI socket, reverting to old: %s", strerror(errno));
d3372da9 2195 return(0);
2196 }
ddb933f1 2197 if(tcpsocket != NULL)
2198 {
2199 putsock(tcpsocket);
2200 tcpsocket = NULL;
2201 }
2202 tcpsocket = newsock;
2203 return(0);
2204}
2205
2206static int unixsockupdate(struct configvar *var, void *uudata)
2207{
2208 struct socket *newsock;
2209 struct sockaddr_un *un;
2210
2211 newsock = NULL;
2212 if(((un = makeunixname()) != NULL) && ((newsock = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
2213 {
2214 flog(LOG_WARNING, "could not create new Unix UI socket, reverting to old: %s", strerror(errno));
2215 return(0);
2216 }
2217 if(unixsocket != NULL)
2218 {
2219 putsock(unixsocket);
2220 unixsocket = NULL;
2221 }
2222 unixsocket = newsock;
d3372da9 2223 return(0);
2224}
2225
2226static int init(int hup)
2227{
d3372da9 2228 struct uiuser *user, *next;
ddb933f1 2229 struct sockaddr_un *un;
d3372da9 2230
2231 if(hup)
2232 {
2233 for(user = users; user != NULL; user = next)
2234 {
2235 next = user->next;
2236 if(user->delete)
2237 freeuser(user);
2238 }
2239 }
2240 if(!hup)
2241 {
9a64a4f7 2242 starttime = time(NULL);
ddb933f1 2243 if((confgetint("ui", "port") != -1) && ((tcpsocket = netcstcplisten(confgetint("ui", "port"), 1, uiaccept, NULL)) == NULL))
2244 {
2245 flog(LOG_CRIT, "could not create TCP UI socket: %s", strerror(errno));
2246 return(1);
2247 }
2248 CBREG(confgetvar("ui", "port"), conf_update, tcpportupdate, NULL, NULL);
2249 if(((un = makeunixname()) != NULL) && ((unixsocket = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
d3372da9 2250 {
ddb933f1 2251 flog(LOG_CRIT, "could not create Unix UI socket: %s", strerror(errno));
d3372da9 2252 return(1);
2253 }
ddb933f1 2254 CBREG(confgetvar("ui", "unixsock"), conf_update, unixsockupdate, NULL, NULL);
d3372da9 2255 GCBREG(newfncb, newfnetnode, NULL);
2256 GCBREG(newtransfercb, newtransfernotify, NULL);
2257 }
2258 return(0);
2259}
2260
2261static int run(void)
2262{
2263 int i, id;
2264 struct uidata *data, *next;
2265 struct qcommand *qcmd;
2266 struct notif *notif, *nnotif;
2267 wchar_t buf[64];
2268
2269 for(data = actives; data != NULL; data = next)
2270 {
2271 next = data->next;
2272 if(data->close)
2273 freeuidata(data);
2274 }
2275 for(data = actives; data != NULL; data = data->next)
2276 {
2277 for(notif = data->fnotif; notif != NULL; notif = nnotif)
2278 {
2279 nnotif = notif->next;
2280 if(notif->state == NOTIF_WAIT)
2281 continue;
2282 id = -1;
2283 for(i = 0; i < notif->argc; i++)
2284 {
2285 if(notif->argv[i].dt == NOTIF_ID)
2286 {
2287 id = notif->argv[i].d.n;
2288 break;
2289 }
2290 }
2291 if(findnotif(notif->prev, 0, -1, notif->code, id) != NULL)
2292 continue;
2293 sq(data->sk, 2, L"%%i", notif->code, NULL);
2294 for(i = 0; i < notif->argc; i++)
2295 {
2296 switch(notif->argv[i].dt)
2297 {
2298 case NOTIF_INT:
2299 case NOTIF_ID:
2300 sq(data->sk, 2, L"%%i", notif->argv[i].d.n, NULL);
2301 break;
2302 case NOTIF_STR:
2303 if(notif->argv[i].d.s[0] == L'%')
2304 sq(data->sk, 2, L"%%s", notif->argv[i].d.s, NULL);
2305 else
2306 sq(data->sk, 2, notif->argv[i].d.s, NULL);
2307 break;
2308 case NOTIF_FLOAT:
2309 swprintf(buf, 64, L"%f", notif->argv[i].d.d);
2310 sq(data->sk, 2, buf, NULL);
2311 break;
2312 }
2313 }
2314 sq(data->sk, 0, NULL);
2315 if(notif->rlimit != 0)
2316 {
2317 notif->state = NOTIF_WAIT;
2318 notif->exptimer = timercallback(ntime() + notif->rlimit, (void (*)(int, void *))notifexpire, notif);
2319 } else {
2320 freenotif(notif);
2321 }
2322 }
2323 if((qcmd = unlinkqcmd(data)) != NULL)
2324 {
2325 qcmd->cmd->handler(data->sk, data, qcmd->argc, qcmd->argv);
2326 freequeuecmd(qcmd);
2327 return(1);
2328 }
2329 }
2330 return(0);
2331}
2332
2333static void terminate(void)
2334{
2335 while(users != NULL)
2336 freeuser(users);
ddb933f1 2337 if(tcpsocket != NULL)
2338 putsock(tcpsocket);
2339 if(unixsocket != NULL)
2340 putsock(unixsocket);
d3372da9 2341}
2342
2343static struct configvar myvars[] =
2344{
d9f89ef5 2345 /** If true, UI connections will only be accepted from localhost
2346 * addresses (127.0.0.1, ::1 or ::ffff:127.0.0.1). Unless you are
2347 * completely sure that you know what you are doing, never turn
2348 * this off when auth.authless is on. */
d3372da9 2349 {CONF_VAR_BOOL, "onlylocal", {.num = 1}},
ddb933f1 2350 /** The TCP port number on which to accept UI client connections,
2351 * or -1 to not listen on TCP. */
d3372da9 2352 {CONF_VAR_INT, "port", {.num = 1500}},
ddb933f1 2353 /**
2354 * Controls the the name to use for the Unix socket on which to
2355 * accept UI client connections. If the name contains a slash, it
2356 * is treated as a file name to bind on. If the name is "default",
2357 * the file name will be "/var/run/doldacond.sock" if doldacond
2358 * runs with UID == 0, or "/tmp/doldacond-NAME" otherwise, where
2359 * NAME is the user name of the UID which doldacond runs as. If
2360 * the name is "none", no Unix socket will be used. Otherwise, an
2361 * error is signaled.
2362 */
2363 {CONF_VAR_STRING, "unixsock", {.str = L"default"}},
d9f89ef5 2364 /** The TOS value to use for UI connections (see the TOS VALUES
2365 * section). */
d3372da9 2366 {CONF_VAR_INT, "uitos", {.num = SOCK_TOS_MINDELAY}},
d9f89ef5 2367 /** The name of the filtercmd script (see the FILES section for
2368 * lookup information). */
d3372da9 2369 {CONF_VAR_STRING, "filtercmd", {.str = L"dc-filtercmd"}},
2370 {CONF_VAR_END}
2371};
2372
2373static struct configcmd mycmds[] =
2374{
2375 {"user", conf_user},
2376 {NULL}
2377};
2378
2379static struct module me =
2380{
2381 .name = "ui",
2382 .conf =
2383 {
2384 .vars = myvars,
2385 .cmds = mycmds
2386 },
2387 .preinit = preinit,
2388 .init = init,
2389 .run = run,
2390 .terminate = terminate
2391};
2392
2393MODULE(me)
Dolda Connect