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