Fixed HTTP-client query-string handling bug.
[doldaconnect.git] / daemon / ui.c
CommitLineData
d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
302a2600 3 * Copyright (C) 2004 Fredrik Tolf <fredrik@dolda2000.com>
d3372da9 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#define _GNU_SOURCE
20#include <unistd.h>
21#include <stdlib.h>
d3372da9 22#include <sys/socket.h>
23#include <netinet/in.h>
24#include <netinet/ip6.h>
504ba854 25#include <arpa/inet.h>
ddb933f1 26#include <sys/un.h>
d3372da9 27#include <errno.h>
28#include <string.h>
29#include <stdarg.h>
30#include <wchar.h>
31#include <wctype.h>
32#include <iconv.h>
33#include <pwd.h>
34#include <time.h>
35#include <fcntl.h>
36#include <signal.h>
f9455250 37#include <stdint.h>
d3372da9 38
39#ifdef HAVE_CONFIG_H
40#include <config.h>
41#endif
42#include "conf.h"
43#include "auth.h"
44#include "utils.h"
45#include "net.h"
46#include "module.h"
47#include "sysevents.h"
48#include "filenet.h"
49#include "transfer.h"
50#include "search.h"
51#include "client.h"
52
53#define PERM_DISALLOW 1
54#define PERM_ADMIN 2
55#define PERM_FNETCTL 4
56#define PERM_TRANS 8
57#define PERM_TRANSCU 16
58#define PERM_CHAT 32
59#define PERM_SRCH 64
60
61#define NOTIF_END 0
62#define NOTIF_INT 1
63#define NOTIF_STR 2
64#define NOTIF_FLOAT 3
65#define NOTIF_ID 4
dcf7a1a2 66#define NOTIF_OFF 5
d3372da9 67#define NOTIF_PEND 0
68#define NOTIF_WAIT 1
69
70struct uidata;
71
72struct command
73{
74 wchar_t *name;
75 void (*handler)(struct socket *sk, struct uidata *data, int argc, wchar_t **argv);
76};
77
78struct qcommand
79{
80 struct qcommand *next;
81 struct command *cmd;
82 int argc;
83 wchar_t **argv;
84};
85
86struct uiuser
87{
88 struct uiuser *next, *prev;
89 int used;
90 wchar_t *name;
91 unsigned long perms;
92 int delete;
93};
94
95struct notif
96{
97 struct notif *next, *prev;
98 struct uidata *ui;
99 int state;
100 int code;
101 double rlimit;
102 size_t argc;
103 struct timer *exptimer;
104 struct notifarg
105 {
106 int dt;
107 union
108 {
109 int n;
dcf7a1a2 110 off_t o;
d3372da9 111 wchar_t *s;
112 double d;
113 } d;
114 } *argv;
115};
116
117struct uidata
118{
119 struct uidata *next, *prev;
120 struct socket *sk;
121 struct qcommand *queue, *queuelast;
821e3843 122 size_t queuesize;
d3372da9 123 struct authhandle *auth;
124 int close;
125 union
126 {
127 struct
128 {
129 int fnact:1;
130 int fnchat:1;
ba86d49a 131 int fnpeer:1;
d3372da9 132 int tract:1;
133 int trprog:1;
134 int srch:1;
5f151349 135 int msg:1;
d3372da9 136 } b;
137 int w;
138 } notify;
139 wchar_t *username;
140 struct uiuser *userinfo;
5f151349 141 int id;
142 wchar_t *regname;
d3372da9 143 uid_t uid;
144 struct notif *fnotif, *lnotif;
145 char *fcmdbuf;
146 size_t fcmdbufdata, fcmdbufsize;
147 pid_t fcmdpid;
148 struct socket *fcmdsk;
149 /* Read buffer */
150 char *inbuf;
151 size_t inbufsize, indata;
152 /* Wordset storage */
153 wchar_t **argv;
76236762 154 size_t argc, args;
d3372da9 155 /* WCS conversation stuff */
156 wchar_t *cb; /* Conversation buffer */
157 size_t cbsize, cbdata;
158 iconv_t ichandle;
159 /* Parser data */
160 int ps; /* Parser state */
161 wchar_t *pp; /* Current parse pointer */
162 wchar_t *cw; /* Current word (building storage) */
163 size_t cwsize, cwdata;
164};
165
166static int srcheta(struct search *srch, void *uudata);
167static int srchcommit(struct search *srch, void *uudata);
168static int srchres(struct search *srch, struct srchres *sr, void *uudata);
5f151349 169static struct notif *newnotif(struct uidata *data, int code, ...);
170static void notifappend(struct notif *notif, ...);
d3372da9 171
172struct uiuser *users = NULL;
173struct uidata *actives = NULL;
d1ef0200
FT
174struct lport *tcpsocket = NULL;
175struct lport *unixsocket = NULL;
9a64a4f7 176static time_t starttime;
d3372da9 177
178static wchar_t *quoteword(wchar_t *word)
179{
180 wchar_t *wp, *buf, *bp;
181 int dq, numbs, numc;
182
183 dq = 0;
184 numbs = 0;
185 numc = 0;
186 if(*word == L'\0')
187 {
188 dq = 1;
189 } else {
190 for(wp = word; *wp != L'\0'; wp++)
191 {
192 if(!dq && iswspace(*wp))
193 dq = 1;
194 if((*wp == L'\\') || (*wp == L'\"'))
195 numbs++;
196 numc++;
197 }
198 }
199 if(!dq && !numbs)
200 return(NULL);
201 bp = buf = smalloc(sizeof(wchar_t) * (numc + numbs + (dq?2:0) + 1));
202 if(dq)
203 *(bp++) = L'\"';
204 for(wp = word; *wp != L'\0'; wp++)
205 {
206 if((*wp == L'\\') || (*wp == L'\"'))
207 *(bp++) = L'\\';
208 *(bp++) = *wp;
209 }
210 if(dq)
211 *(bp++) = L'\"';
212 *(bp++) = L'\0';
213 return(buf);
214}
215
216static void sq(struct socket *sk, int cont, ...)
217{
218 int num, freepart;
219 va_list al;
f7292a8b 220 char *final, *sarg;
d3372da9 221 wchar_t *buf;
222 wchar_t *part, *tpart;
223 size_t bufsize, bufdata;
224
225 buf = NULL;
226 bufsize = bufdata = 0;
227 num = 0;
228 va_start(al, cont);
229 while((part = va_arg(al, wchar_t *)) != NULL)
230 {
f7292a8b 231 freepart = 0;
d3372da9 232 if(*part == L'%')
233 {
f7292a8b 234 tpart = part + 1;
235 if(!wcscmp(tpart, L"i"))
d3372da9 236 {
f7292a8b 237 freepart = 1;
238 part = swprintf2(L"%i", va_arg(al, int));
dcf7a1a2
FT
239 } else if(!wcscmp(tpart, L"zi")) {
240 freepart = 1;
241 part = swprintf2(L"%zi", va_arg(al, size_t));
242 } else if(!wcscmp(tpart, L"oi")) {
243 freepart = 1;
244 part = swprintf2(L"%ji", (intmax_t)va_arg(al, off_t));
f7292a8b 245 } else if(!wcscmp(tpart, L"s")) {
246 freepart = 1;
247 part = icmbstowcs(sarg = va_arg(al, char *), NULL);
248 if(part == NULL)
d3372da9 249 {
f7292a8b 250 freepart = 0;
251 part = L"ERROR";
252 flog(LOG_ERR, "could not convert local string to wcs: %s", sarg);
d3372da9 253 }
f7292a8b 254 } else if(!wcscmp(tpart, L"ls")) {
255 part = va_arg(al, wchar_t *);
256 } else if(!wcscmp(tpart, L"ll")) {
257 freepart = 1;
258 part = swprintf2(L"%lli", va_arg(al, long long));
259 } else if(!wcscmp(tpart, L"f")) {
260 freepart = 1;
261 part = swprintf2(L"%f", va_arg(al, double));
262 } else if(!wcscmp(tpart, L"x")) {
263 freepart = 1;
264 part = swprintf2(L"%x", va_arg(al, int));
265 } else {
266 flog(LOG_CRIT, "BUG: unknown type code in sq: %ls", tpart);
267 abort();
d3372da9 268 }
d3372da9 269 }
270 if((tpart = quoteword(part)) != NULL)
271 {
272 if(freepart)
273 free(part);
274 part = tpart;
275 freepart = 1;
276 }
277 if((num > 1) || ((num == 1) && !(cont & 1)))
278 addtobuf(buf, L' ');
279 bufcat(buf, part, wcslen(part));
280 if((num == 0) && (cont & 1))
281 addtobuf(buf, L'-');
282 num++;
283 if(freepart)
284 free(part);
285 }
286 if(cont & 2)
287 bufcat(buf, L" \0", 2);
288 else
289 bufcat(buf, L"\r\n\0", 3);
290 if((final = icwcstombs(buf, "utf-8")) == NULL)
291 {
292 flog(LOG_CRIT, "could not convert \"%ls\" into utf-8: %s", buf, strerror(errno));
293 free(buf);
294 return;
295 }
296 va_end(al);
297 free(buf);
298 sockqueue(sk, final, strlen(final));
299 free(final);
300}
301
302struct uiuser *finduser(wchar_t *name)
303{
304 struct uiuser *user;
305
306 for(user = users; user != NULL; user = user->next)
307 {
308 if(!wcscmp(user->name, name))
309 break;
310 }
311 return(user);
312}
313
314static void logout(struct uidata *data)
315{
316 data->userinfo = NULL;
317 if(data->username != NULL)
318 free(data->username);
319 data->username = NULL;
320 if(data->auth != NULL)
321 authputhandle(data->auth);
322 data->auth = NULL;
323}
324
325static int haspriv(struct uidata *data, int perm)
326{
327 if(data->userinfo == NULL)
328 return(0);
329 if(data->userinfo->perms & perm)
330 return(1);
331 else
332 return(0);
333}
334
335/* Useful macros for the command functions: */
336#define haveargs(n) do { if(argc < n) { sq(sk, 0, L"501", L"Wrong number of arguments", NULL); return; } } while(0)
a9bfddfe 337#define havepriv(p) do { if((data->userinfo == NULL) || ((data->userinfo->perms & (p)) != (p))) { sq(sk, 0, L"502", L"Unauthorized request", L"needed", L"%x", (p), NULL); return; } } while(0)
d3372da9 338
339static void cmd_connect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
340{
341 int valid;
504ba854 342 struct in6_addr mv4lo;
d1ef0200 343 struct sockaddr *remote;
d3372da9 344
345 if(confgetint("ui", "onlylocal"))
346 {
d1ef0200
FT
347 valid = 0;
348 if(!sockpeeraddr(sk, &remote, NULL)) {
349 switch(remote->sa_family)
350 {
351 case AF_INET:
352 valid = ((struct sockaddr_in *)remote)->sin_addr.s_addr == INADDR_LOOPBACK;
353 break;
354 case AF_INET6:
355 inet_pton(AF_INET6, "::ffff:127.0.0.1", &mv4lo);
356 valid = 0;
357 if(!memcmp(&((struct sockaddr_in6 *)remote)->sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)))
358 valid = 1;
359 if(!memcmp(&((struct sockaddr_in6 *)remote)->sin6_addr, &mv4lo, sizeof(in6addr_loopback)))
360 valid = 1;
361 break;
362 case AF_UNIX:
504ba854 363 valid = 1;
d1ef0200
FT
364 break;
365 }
366 free(remote);
d3372da9 367 }
368 if(!valid)
369 {
370 sq(sk, 0, L"502", L"Only localhost connections allowed to this host", NULL);
d1ef0200 371 closesock(sk);
d3372da9 372 data->close = 1;
373 return;
374 }
375 }
040118de 376 sq(sk, 0, L"201", L"1", L"3", L"Dolda Connect daemon v" VERSION, NULL);
d3372da9 377}
378
379static void cmd_notfound(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
380{
381 if((argv != NULL) && (argv[0] != NULL))
f7292a8b 382 sq(sk, 0, L"500", L"Command not found", NULL);
d3372da9 383 else
384 sq(sk, 0, L"500", L"No command", NULL);
385}
386
387static void cmd_shutdown(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
388{
389 extern volatile int running;
390
391 havepriv(PERM_ADMIN);
392 flog(LOG_NOTICE, "UI shutdown request from %ls, shutting down", data->username);
393 running = 0;
394 sq(sk, 0, L"200", L"Daemon shutting down", NULL);
395}
396
397static void cmd_quit(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
398{
399 sq(sk, 0, L"200", L"Closing connection", NULL);
400 data->close = 1;
401}
402
403static void cmd_lsauth(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
404{
405 struct authmech *mech, *prev;
406
407 prev = NULL;
408 for(mech = mechs; mech != NULL; mech = mech->next)
409 {
3616b334 410 if(mech->enabled && authavailable(mech, sk))
d3372da9 411 {
412 if(prev != NULL)
413 sq(sk, 1, L"200", prev->name, NULL);
414 prev = mech;
415 }
416 }
417 if(prev == NULL)
418 sq(sk, 0, L"201", L"No authentication methods supported", NULL);
419 else
420 sq(sk, 0, L"200", prev->name, NULL);
421}
422
423static void cmd_login(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
424{
425 char *buf;
426 int code;
427 struct passwd *pwd;
428
429 haveargs(3);
430 if(data->username != NULL)
431 {
432 if(data->userinfo != NULL)
433 sq(sk, 0, L"503", L"Already logged in", NULL);
434 else
435 sq(sk, 0, L"503", L"Already logging in", NULL);
436 return;
437 }
438 if((buf = icwcstombs(argv[2], NULL)) == NULL)
439 {
440 sq(sk, 0, L"504", L"Could not convert username to locale charset", NULL);
441 return;
442 }
443 data->username = swcsdup(argv[2]);
444 if((pwd = getpwnam(buf)) == NULL)
445 data->uid = -1;
446 else
447 data->uid = pwd->pw_uid;
448 if((data->auth = initauth(argv[1], buf)) == NULL)
449 {
450 if(errno == ENOENT)
451 sq(sk, 0, L"508", L"No such authentication mechanism", NULL);
452 else
f7292a8b 453 sq(sk, 0, L"505", L"Could not initialize authentication system", L"%s", strerror(errno), NULL);
d3372da9 454 free(buf);
455 logout(data);
456 return;
457 }
458 free(buf);
3616b334 459 switch(authenticate(data->auth, sk, NULL))
d3372da9 460 {
461 case AUTH_SUCCESS:
462 data->userinfo = finduser(data->username);
463 if(data->userinfo == NULL)
464 data->userinfo = finduser(L"default");
465 if(data->uid == -1)
466 {
467 sq(sk, 0, L"506", L"Authentication error", NULL);
d1ef0200 468 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formatsockpeer(sk));
d3372da9 469 logout(data);
470 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
471 sq(sk, 0, L"506", L"Authentication error", NULL);
d1ef0200 472 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formatsockpeer(sk));
d3372da9 473 logout(data);
474 } else {
475 sq(sk, 0, L"200", L"Welcome", NULL);
d1ef0200 476 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formatsockpeer(sk));
d3372da9 477 }
478 break;
479 case AUTH_DENIED:
f7292a8b 480 sq(sk, 0, L"506", L"Authentication error", L"%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
d1ef0200 481 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formatsockpeer(sk));
d3372da9 482 logout(data);
483 break;
484 case AUTH_PASS:
485 switch(data->auth->prompt)
486 {
487 case AUTH_PR_AUTO:
488 code = 300;
489 break;
490 case AUTH_PR_NOECHO:
491 code = 301;
492 break;
493 case AUTH_PR_ECHO:
494 code = 302;
495 break;
496 case AUTH_PR_INFO:
497 code = 303;
498 break;
499 case AUTH_PR_ERROR:
500 code = 304;
501 break;
502 }
f7292a8b 503 sq(sk, 0, L"%i", code, data->auth->text, NULL);
d3372da9 504 break;
505 case AUTH_ERR:
f7292a8b 506 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 507 logout(data);
508 break;
509 default:
510 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_login");
f7292a8b 511 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 512 logout(data);
513 break;
514 }
515}
516
517static void cmd_pass(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
518{
519 char *buf;
520 int code;
521
522 haveargs(2);
523 if((buf = icwcstombs(argv[1], NULL)) == NULL)
524 {
525 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
526 return;
527 }
528 if((data->auth == NULL) || (data->userinfo != NULL))
529 {
530 sq(sk, 0, L"507", L"Data not expected", NULL);
531 return;
532 }
3616b334 533 switch(authenticate(data->auth, sk, buf))
d3372da9 534 {
535 case AUTH_SUCCESS:
536 data->userinfo = finduser(data->username);
537 if(data->userinfo == NULL)
538 data->userinfo = finduser(L"default");
539 if(data->uid == -1)
540 {
541 sq(sk, 0, L"506", L"Authentication error", NULL);
d1ef0200 542 flog(LOG_INFO, "user %ls authenticated successfully from %s, but no account existed", data->username, formatsockpeer(sk));
d3372da9 543 logout(data);
544 } else if((data->userinfo == NULL) || (data->userinfo->perms & PERM_DISALLOW)) {
545 sq(sk, 0, L"506", L"Authentication error", NULL);
d1ef0200 546 flog(LOG_INFO, "user %ls authenticated successfully from %s, but was not authorized", data->username, formatsockpeer(sk));
d3372da9 547 logout(data);
548 } else {
549 sq(sk, 0, L"200", L"Welcome", NULL);
d1ef0200 550 flog(LOG_INFO, "%ls (UID %i) logged in from %s", data->username, data->uid, formatsockpeer(sk));
d3372da9 551 }
552 break;
553 case AUTH_DENIED:
f7292a8b 554 sq(sk, 0, L"506", L"Authentication error", L"%ls", (data->auth->text == NULL)?L"":(data->auth->text), NULL);
d1ef0200 555 flog(LOG_INFO, "authentication failed for %ls from %s", data->username, formatsockpeer(sk));
d3372da9 556 logout(data);
557 break;
558 case AUTH_PASS:
559 switch(data->auth->prompt)
560 {
561 case AUTH_PR_AUTO:
562 code = 300;
563 break;
564 case AUTH_PR_NOECHO:
565 code = 301;
566 break;
567 case AUTH_PR_ECHO:
568 code = 302;
569 break;
570 case AUTH_PR_INFO:
571 code = 303;
572 break;
573 case AUTH_PR_ERROR:
574 code = 304;
575 break;
576 }
f7292a8b 577 sq(sk, 0, L"%i", code, data->auth->text, NULL);
d3372da9 578 break;
579 case AUTH_ERR:
f7292a8b 580 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 581 logout(data);
582 break;
583 default:
584 flog(LOG_WARNING, "BUG? Non-caught return from authenticate in cmd_pass");
f7292a8b 585 sq(sk, 0, L"505", L"System error", L"%s", strerror(errno), NULL);
d3372da9 586 logout(data);
587 break;
588 }
589 free(buf);
590}
591
592static void cmd_fnetconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
593{
594 int i;
595 char *buf;
596 int err;
597 struct fnetnode *fn;
efc05613 598 struct wcspair *args;
d3372da9 599
600 haveargs(3);
601 havepriv(PERM_FNETCTL);
dd31fcfa 602 for(i = 0, fn = fnetnodes; fn != NULL; i++, fn = fn->next);
603 if((confgetint("fnet", "maxnodes") > 0) && (i >= confgetint("fnet", "maxnodes"))) {
604 sq(sk, 0, L"515", L"Too many fnetnodes connected already", NULL);
605 return;
606 }
d3372da9 607 if((buf = icwcstombs(argv[2], NULL)) == NULL)
608 {
609 sq(sk, 0, L"504", L"Could not convert data to locale charset", NULL);
610 return;
611 }
efc05613 612 args = NULL;
613 for(i = 3; i < argc - 1; i += 2)
614 newwcspair(argv[i], argv[i + 1], &args);
a3a4a3a7 615 fn = fnetinitconnect(argv[1], data->userinfo->name, buf, args);
d3372da9 616 err = errno;
617 free(buf);
618 if(fn == NULL)
619 {
620 if(errno == EPROTONOSUPPORT)
621 sq(sk, 0, L"511", L"No such network name", NULL);
622 else
f7292a8b 623 sq(sk, 0, L"509", L"Could not parse the address", L"%s", strerror(err), NULL);
d3372da9 624 return;
625 }
d3372da9 626 linkfnetnode(fn);
627 fnetsetname(fn, argv[2]);
f7292a8b 628 sq(sk, 0, L"200", L"%i", fn->id, L"Connection under way", NULL);
d3372da9 629 putfnetnode(fn);
d3372da9 630}
631
632static void cmd_lsnodes(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
633{
634 struct fnetnode *fn;
635
636 if(fnetnodes == NULL)
637 {
638 sq(sk, 0, L"201", L"No connected nodes", NULL);
639 return;
640 }
641 for(fn = fnetnodes; fn != NULL; fn = fn->next)
642 {
f7292a8b 643 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 644 }
645}
646
647static void cmd_disconnect(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
648{
649 struct fnetnode *fn;
650 int i;
651
652 haveargs(2);
653 havepriv(PERM_FNETCTL);
654 /* Note - Programmatical user interfaces must only give one
655 * argument per command, the multiple argument form is only for
656 * convenience when manually controlling the daemon via
657 * eg. telnet. The reason is that the return codes aren't clear
658 * enough for the multiple argument form. */
659 for(i = 1; i < argc; i++)
660 {
661 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
662 {
663 sq(sk, 0, L"510", L"No such node", NULL);
664 return;
665 }
18603153 666 if(wpfind(fn->args, L"locked") && !((data->userinfo->perms & PERM_ADMIN) || !wcscmp(data->userinfo->name, fn->owner)))
667 {
668 sq(sk, 0, L"502", L"This node is locked and you are neither administrator nor its owner", NULL);
669 return;
670 }
d3372da9 671 killfnetnode(fn);
672 unlinkfnetnode(fn);
673 }
674 sq(sk, 0, L"200", L"Node flagged for disconnection", NULL);
675}
676
677static void cmd_lspa(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
678{
679 struct fnetnode *fn;
680 struct fnetpeerdatum *datum;
681
682 haveargs(2);
683 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
684 {
685 sq(sk, 0, L"510", L"No such node", NULL);
686 return;
687 }
688 if(fn->peerdata == NULL)
689 {
690 sq(sk, 0, L"201", L"No data available", NULL);
691 } else {
692 for(datum = fn->peerdata; datum != NULL; datum = datum->next)
f7292a8b 693 sq(sk, (datum->next != NULL)?1:0, L"200", datum->id, L"%i", datum->datatype, NULL);
d3372da9 694 }
695}
696
697static void cmd_lspeers(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
698{
699 int i;
700 struct fnetnode *fn;
0e227c1d 701 struct fnetpeer *peer, *npeer;
d3372da9 702
703 haveargs(2);
704 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
705 {
706 sq(sk, 0, L"510", L"No such node", NULL);
707 return;
708 }
709 if(fn->peers == NULL)
710 {
821e3843 711 sq(sk, 0, L"201", L"No peers available", NULL);
d3372da9 712 } else {
0e227c1d 713 for(peer = btreeiter(fn->peers); peer != NULL; peer = npeer)
d3372da9 714 {
0e227c1d
FT
715 npeer = btreeiter(NULL);
716 sq(sk, 2 | ((npeer != NULL)?1:0), L"200", L"%ls", peer->id, L"%ls", peer->nick, NULL);
d3372da9 717 for(i = 0; i < peer->dinum; i++)
718 {
719 if(peer->peerdi[i].datum->datatype == FNPD_INT)
f7292a8b 720 sq(sk, 2, peer->peerdi[i].datum->id, L"%i", peer->peerdi[i].data.num, NULL);
d3372da9 721 if(peer->peerdi[i].datum->datatype == FNPD_LL)
f7292a8b 722 sq(sk, 2, peer->peerdi[i].datum->id, L"%ll", peer->peerdi[i].data.lnum, NULL);
d3372da9 723 if((peer->peerdi[i].datum->datatype == FNPD_STR) && (peer->peerdi[i].data.str != NULL))
f7292a8b 724 sq(sk, 2, peer->peerdi[i].datum->id, L"%ls", peer->peerdi[i].data.str, NULL);
d3372da9 725 }
726 sq(sk, 0, NULL);
727 }
728 }
729}
730
731static void cmd_download(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
732{
733 int i;
734 struct fnet *net;
735 struct fnetnode *fn;
736 struct transfer *transfer;
737 struct fnetpeer *peer;
738
739 haveargs(4);
740 if((argc > 5) && ((argc % 2) == 0))
741 {
742 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
743 return;
744 }
745 havepriv(PERM_TRANS);
746 if((*(argv[1]) >= L'0') && (*(argv[1]) <= L'9'))
747 {
748 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
749 {
750 sq(sk, 0, L"510", L"No such node", NULL);
751 return;
752 }
753 net = fn->fnet;
754 } else {
755 fn = NULL;
756 if((net = findfnet(argv[1])) == NULL)
757 {
758 sq(sk, 0, L"511", L"No such network name", NULL);
759 return;
760 }
761 }
762 transfer = newtransfer();
763 authgethandle(transfer->auth = data->auth);
764 transfer->fnet = net;
765 transfer->peerid = swcsdup(argv[2]);
766 transfer->path = swcsdup(argv[3]);
767 transfer->dir = TRNSD_DOWN;
768 transfer->owner = data->uid;
769 if(fn != NULL)
770 {
771 transfer->fn = fn;
772 getfnetnode(fn);
773 linktransfer(transfer);
774 if(((peer = fnetfindpeer(fn, transfer->peerid)) != NULL) && (peer->nick != NULL))
775 transfersetnick(transfer, peer->nick);
776 } else {
777 linktransfer(transfer);
778 }
779 if(argc > 4)
dcf7a1a2 780 transfersetsize(transfer, wcstoll(argv[4], NULL, 0));
d3372da9 781 if(argc > 5)
782 {
783 for(i = 5; i < argc; i += 2)
5123bec0 784 {
785 if(!wcscmp(argv[i], L"hash"))
786 {
a04fc9ff 787 transfersethash(transfer, parsehash(argv[i + 1]));
5123bec0 788 } else {
9ec790e8 789 newwcspair(argv[i], argv[i + 1], &transfer->args);
5123bec0 790 }
791 }
d3372da9 792 }
f7292a8b 793 sq(sk, 0, L"200", L"%i", transfer->id, L"Download queued", NULL);
d3372da9 794 transfersetactivity(transfer, L"create");
795}
796
797static void cmd_lstrans(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
798{
799 struct transfer *transfer, *pt;
800
801 havepriv(PERM_TRANS);
802 pt = NULL;
803 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
804 {
805 if((transfer->dir != TRNSD_DOWN) || (transfer->owner == data->uid))
806 {
807 if(pt != NULL)
f7292a8b 808 sq(sk, 1, 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),
dcf7a1a2 812 L"%oi", pt->size, L"%oi", pt->curpos,
5123bec0 813 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 814 NULL);
815 pt = transfer;
816 }
817 }
818 if(pt == NULL)
819 sq(sk, 0, L"201", L"No transfers", NULL);
820 else
f7292a8b 821 sq(sk, 0, L"200", L"%i", pt->id, L"%i", pt->dir,
822 L"%i", pt->state, pt->peerid,
d3372da9 823 (pt->peernick == NULL)?L"":(pt->peernick),
824 (pt->path == NULL)?L"":(pt->path),
dcf7a1a2 825 L"%oi", pt->size, L"%oi", pt->curpos,
5123bec0 826 (pt->hash == NULL)?L"":unparsehash(pt->hash),
d3372da9 827 NULL);
828}
829
830static void cmd_cancel(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
831{
832 struct transfer *transfer;
833
834 haveargs(2);
835 havepriv(PERM_TRANS);
836 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
837 {
838 sq(sk, 0, L"512", L"No such transfer", NULL);
839 return;
840 }
841 if((transfer->dir == TRNSD_UP) && !(data->userinfo->perms & PERM_TRANSCU))
842 {
843 sq(sk, 0, L"502", L"You are not allowed to cancel uploads", NULL);
844 return;
845 }
846 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
847 {
848 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
849 return;
850 }
851 transfer->close = 1;
852 sq(sk, 0, L"200", L"Transfer cancelled", NULL);
853}
854
4a9a79b3 855static void cmd_reset(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
856{
857 struct transfer *transfer;
858
859 haveargs(2);
860 havepriv(PERM_TRANS);
861 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
862 {
863 sq(sk, 0, L"512", L"No such transfer", NULL);
864 return;
865 }
866 if(transfer->dir == TRNSD_UP)
867 {
868 sq(sk, 0, L"512", L"Only applicable to downloads", NULL);
869 return;
870 }
871 resettransfer(transfer);
872 sq(sk, 0, L"200", L"Transfer reset", NULL);
873}
874
d3372da9 875static void cmd_notify(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
876{
877 int i, val;
878
879 if((argc % 2) != 1)
880 {
881 sq(sk, 0, L"501", L"Must have an even number of arguments", NULL);
882 return;
883 }
884 for(i = 1; i < argc; i += 2)
885 {
886 if(!wcscasecmp(argv[i + 1], L"on"))
887 val = 1;
888 else
889 val = 0;
890 if(!wcscasecmp(argv[i], L"all"))
891 {
892 if(val)
893 data->notify.w = ~0;
894 else
895 data->notify.w = 0;
896 } else if(!wcscasecmp(argv[i], L"fn:chat")) {
897 data->notify.b.fnchat = val;
898 } else if(!wcscasecmp(argv[i], L"fn:act")) {
899 data->notify.b.fnact = val;
ba86d49a 900 } else if(!wcscasecmp(argv[i], L"fn:peer")) {
901 data->notify.b.fnpeer = val;
d3372da9 902 } else if(!wcscasecmp(argv[i], L"trans:act")) {
903 data->notify.b.tract = val;
904 } else if(!wcscasecmp(argv[i], L"trans:prog")) {
905 data->notify.b.trprog = val;
906 } else if(!wcscasecmp(argv[i], L"srch:act")) {
907 data->notify.b.srch = val;
5f151349 908 } else if(!wcscasecmp(argv[i], L"msg")) {
909 data->notify.b.msg = val;
d3372da9 910 }
911 }
912 sq(sk, 0, L"200", L"Notification alteration succeeded", NULL);
913}
914
915static void cmd_sendchat(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
916{
917 struct fnetnode *fn;
918 int public;
919
920 haveargs(5);
921 havepriv(PERM_CHAT);
922 if((fn = findfnetnode(wcstol(argv[1], NULL, 0))) == NULL)
923 {
924 sq(sk, 0, L"510", L"No such node", NULL);
925 return;
926 }
927 public = wcstol(argv[2], NULL, 0);
928 if((public != 0) && (public != 1))
929 {
930 sq(sk, 0, L"509", L"Second argument must be 0 or 1", NULL);
931 return;
932 }
933 if(fn->state != FNN_EST)
934 {
935 sq(sk, 0, L"513", L"Hub is in state FNN_EST", NULL);
936 return;
937 }
938 if(fnetsendchat(fn, public, argv[3], argv[4]))
939 {
940 if(errno == ENOTSUP)
941 sq(sk, 0, L"513", L"This network does not support chatting", NULL);
942 else if(errno == EPERM)
943 sq(sk, 0, L"502", L"This node does not allow you to chat", NULL);
944 else if(errno == EILSEQ)
945 sq(sk, 0, L"504", L"This network could not support all the characters in that message", NULL);
946 else
947 sq(sk, 0, L"505", L"Could not chat", NULL);
948 return;
949 }
950 sq(sk, 0, L"200", L"Chat string sent", NULL);
951}
952
953static void cmd_search(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
954{
955 struct search *srch;
956 struct fnetnode *fn;
957 struct sexpr *sexpr;
958 int i;
959
960 haveargs(3);
961 havepriv(PERM_SRCH);
962 srch = newsearch(data->username, NULL);
963 for(i = 1; i < argc; i++)
964 {
965 if(!wcscmp(argv[i], L"all"))
966 {
967 for(fn = fnetnodes; fn != NULL; fn = fn->next)
968 {
969 if(fn->state == FNN_EST)
970 searchaddfn(srch, fn);
971 }
972 i++;
973 break;
974 } else if(!wcscmp(argv[i], L"prio")) {
975 if(++i == argc)
976 {
977 sq(sk, 0, L"501", L"No argument to prio", NULL);
978 freesearch(srch);
979 return;
980 }
981 srch->prio = wcstol(argv[i], NULL, 0);
982 } else if(iswdigit(*argv[i])) {
983 if((fn = findfnetnode(wcstol(argv[i], NULL, 0))) == NULL)
984 {
985 sq(sk, 0, L"510", L"No such node", NULL);
986 freesearch(srch);
987 return;
988 }
989 searchaddfn(srch, fn);
990 } else {
991 break;
992 }
993 }
994 if(srch->fnl == NULL)
995 {
996 sq(sk, 0, L"501", L"No fnetnodes to search found on line", NULL);
997 freesearch(srch);
998 return;
999 }
1000 if(i == argc)
1001 {
1002 sq(sk, 0, L"501", L"No search expression found on line", NULL);
1003 freesearch(srch);
1004 return;
1005 }
1006 if((sexpr = parsesexpr(argc - i, argv + i)) == NULL)
1007 {
1008 sq(sk, 0, L"509", L"Could not parse search expression", NULL);
1009 freesearch(srch);
1010 return;
1011 }
1012 optsexpr(sexpr);
1013 getsexpr(srch->sexpr = sexpr);
1014 queuesearch(srch);
1015 CBREG(srch, search_eta, srcheta, NULL, NULL);
1016 CBREG(srch, search_commit, srchcommit, NULL, NULL);
1017 CBREG(srch, search_result, srchres, NULL, NULL);
f7292a8b 1018 sq(sk, 0, L"200", L"%i", srch->id, L"%i", srch->eta - time(NULL), NULL);
d3372da9 1019 putsexpr(sexpr);
1020}
1021
1022static void cmd_lssrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1023{
1024 struct search *srch, *pt;
1025 time_t now;
1026
1027 havepriv(PERM_SRCH);
1028 pt = NULL;
1029 now = time(NULL);
1030 for(srch = searches; srch != NULL; srch = srch->next)
1031 {
1032 if(!wcscmp(srch->owner, data->username))
1033 {
1034 if(pt != NULL)
f7292a8b 1035 sq(sk, 1, L"200", L"%i", pt->id, L"%i", pt->state, L"%i", pt->eta - now, L"%i", pt->numres, NULL);
d3372da9 1036 pt = srch;
1037 }
1038 }
1039 if(pt == NULL)
1040 sq(sk, 0, L"201", L"No searches", NULL);
1041 else
f7292a8b 1042 sq(sk, 0, L"200", L"%i", pt->id, L"%i", pt->state, L"%i", pt->eta - now, L"%i", pt->numres, NULL);
d3372da9 1043}
1044
1045static void cmd_lssr(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1046{
1047 struct search *srch;
1048 struct srchres *sr;
d3372da9 1049
1050 haveargs(2);
1051 havepriv(PERM_SRCH);
1052 if((srch = findsearch(wcstol(argv[1], NULL, 0))) == NULL)
1053 {
1054 sq(sk, 0, L"514", L"No such search", NULL);
1055 return;
1056 }
1057 if(srch->results == NULL)
1058 {
1059 sq(sk, 0, L"201", L"No results", NULL);
1060 } else {
1061 for(sr = srch->results; sr != NULL; sr = sr->next)
1062 {
f7292a8b 1063 sq(sk, (sr->next != NULL)?1:0, L"200", L"%ls", sr->filename,
dcf7a1a2 1064 sr->fnet->name, L"%ls", sr->peerid, L"%oi", sr->size,
f7292a8b 1065 L"%i", sr->slots, L"%i", (sr->fn == NULL)?-1:(sr->fn->id),
1066 L"%f", sr->time,
1067 L"%ls", (sr->hash == NULL)?L"":unparsehash(sr->hash), NULL);
d3372da9 1068 }
1069 }
1070}
1071
1072static void cmd_cansrch(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1073{
1074 struct search *srch;
1075 int i;
1076
1077 haveargs(2);
1078 havepriv(PERM_SRCH);
1079 /* Note - Programmatical user interfaces must only give one
1080 * argument per command, the multiple argument form is only for
1081 * convenience when manually controlling the daemon via
1082 * eg. telnet. The reason is that the return codes aren't clear
1083 * enough for the multiple argument form. */
1084 for(i = 1; i < argc; i++)
1085 {
1086 if((srch = findsearch(wcstol(argv[i], NULL, 0))) == NULL)
1087 {
1088 sq(sk, 0, L"514", L"No such search", NULL);
1089 return;
1090 }
1091 freesearch(srch);
1092 }
1093 sq(sk, 0, L"200", L"Search cancelled", NULL);
1094}
1095
cab0b442 1096static void fcmdread(struct socket *sk, struct uidata *data)
d3372da9 1097{
1098 char *buf;
1099 size_t bufsize;
1100
1101 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
cab0b442 1102 return;
d3372da9 1103 bufcat(data->fcmdbuf, buf, bufsize);
1104 free(buf);
1105}
1106
cab0b442 1107static void fcmderr(struct socket *sk, int err, struct uidata *data)
d3372da9 1108{
1109 wchar_t *wbuf, *p, *p2;
1110
1111 if(err)
1112 {
1113 flog(LOG_WARNING, "error occurred on filtercmd pipe socket: %s", strerror(err));
1114 kill(-data->fcmdpid, SIGHUP);
1115 putsock(data->fcmdsk);
1116 data->fcmdsk = NULL;
1117 if(data->fcmdbuf != NULL)
1118 {
1119 free(data->fcmdbuf);
1120 data->fcmdbuf = NULL;
1121 }
1122 data->fcmdbufsize = data->fcmdbufdata = 0;
f7292a8b 1123 sq(data->sk, 0, L"505", L"An error occurred on the pipe to the filtercmd", L"%s", strerror(err), NULL);
cab0b442 1124 return;
d3372da9 1125 }
1126 putsock(data->fcmdsk);
1127 data->fcmdsk = NULL;
1128 data->fcmdpid = 0;
1129 if(data->fcmdbuf == NULL)
1130 {
1131 wbuf = swcsdup(L"");
1132 } else {
1133 addtobuf(data->fcmdbuf, 0);
1134 wbuf = icmbstowcs(data->fcmdbuf, NULL);
1135 free(data->fcmdbuf);
1136 }
1137 data->fcmdbuf = NULL;
1138 data->fcmdbufsize = data->fcmdbufdata = 0;
1139 if(wbuf == NULL)
1140 {
1141 sq(data->sk, 0, L"504", L"Filtercmd sent data which could not be converted from the local charset", NULL);
cab0b442 1142 return;
d3372da9 1143 }
1144 p = wbuf;
1145 for(p2 = wcschr(p, L'\n'); p2 != NULL; p2 = wcschr(p, L'\n'))
1146 {
1147 *(p2++) = L'\0';
f7292a8b 1148 sq(data->sk, (*p2 == L'\0')?0:1, L"200", L"%ls", p, NULL);
d3372da9 1149 p = p2;
1150 }
1151 if(*p == L'\0')
1152 {
1153 if(p == wbuf)
1154 sq(data->sk, 0, L"201", L"No data returned", NULL);
1155 } else {
f7292a8b 1156 sq(data->sk, 0, L"200", L"%ls", p, NULL);
d3372da9 1157 }
1158 free(wbuf);
1159}
1160
1161static void cmd_filtercmd(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1162{
1163 int i;
1164 pid_t pid;
1165 int pipe;
1166 char **cargv, **pp;
1167 char *filtercmd, *argbuf;
1168 size_t cargvsize, cargvdata;
1169 struct passwd *pwent;
1170
1171 haveargs(2);
1172 havepriv(PERM_TRANS);
1173 if((pwent = getpwuid(data->uid)) == NULL)
1174 {
1175 flog(LOG_WARNING, "no passwd entry for UI user %i", data->uid);
1176 sq(sk, 0, L"505", L"System error - Could not fork session", "Internal error", NULL);
1177 return;
1178 }
c0845d5b 1179 filtercmd = findfile("dc-filtercmd", pwent->pw_dir, 0);
ddb933f1 1180 if(filtercmd == NULL)
c0845d5b 1181 filtercmd = findfile(icswcstombs(confgetstr("ui", "filtercmd"), NULL, NULL), NULL, 0);
ddb933f1 1182 if(filtercmd == NULL)
d3372da9 1183 {
1184 flog(LOG_WARNING, "could not find filtercmd executable for user %s", pwent->pw_name);
1185 sq(sk, 0, L"505", L"System error - Could not fork session", L"Could not find filtercmd executable", NULL);
1186 return;
1187 }
1188 cargv = NULL;
1189 cargvsize = cargvdata = 0;
1190 addtobuf(cargv, filtercmd);
1191 for(i = 1; i < argc; i++)
1192 {
1193 if((argbuf = icwcstombs(argv[i], NULL)) == NULL)
1194 {
1195 for(i = 0; i < cargvdata; i++)
1196 free(cargv[i]);
1197 free(cargv);
f7292a8b 1198 sq(sk, 0, L"504", L"Could not convert argument into local character set", L"%i", i, L"%s", strerror(errno), NULL);
d3372da9 1199 return;
1200 }
1201 addtobuf(cargv, argbuf);
1202 }
1203 addtobuf(cargv, NULL);
1204 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)
1205 {
1206 flog(LOG_WARNING, "could not fork session in filtercmd: %s", strerror(errno));
f7292a8b 1207 sq(sk, 0, L"505", L"System error - Could not fork session", L"%s", strerror(errno), NULL);
d3372da9 1208 return;
1209 }
1210 if(pid == 0)
1211 {
1212 execv(filtercmd, cargv);
1213 flog(LOG_WARNING, "could not exec filtercmd %s: %s", filtercmd, strerror(errno));
1214 exit(127);
1215 }
1216 for(pp = cargv; *pp; pp++)
1217 free(*pp);
1218 free(cargv);
1219 data->fcmdsk = wrapsock(pipe);
1220 data->fcmdpid = pid;
1221 if(data->fcmdbuf != NULL)
1222 {
1223 free(data->fcmdbuf);
1224 data->fcmdbuf = NULL;
1225 }
1226 data->fcmdbufsize = data->fcmdbufdata = 0;
cab0b442 1227 data->fcmdsk->data = data;
1228 data->fcmdsk->readcb = (void (*)(struct socket *, void *))fcmdread;
1229 data->fcmdsk->errcb = (void (*)(struct socket *, int, void *))fcmderr;
d3372da9 1230}
1231
1232static void cmd_lstrarg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1233{
1234 struct transfer *transfer;
9ec790e8 1235 struct wcspair *ta;
d3372da9 1236
1237 haveargs(2);
1238 havepriv(PERM_TRANS);
1239 if((transfer = findtransfer(wcstol(argv[1], NULL, 0))) == NULL)
1240 {
1241 sq(sk, 0, L"512", L"No such transfer", NULL);
1242 return;
1243 }
1244 if((transfer->dir == TRNSD_DOWN) && (transfer->owner != data->uid))
1245 {
1246 sq(sk, 0, L"502", L"You do not own that transfer", NULL);
1247 return;
1248 }
1249 if(transfer->args == NULL)
1250 {
1251 sq(sk, 0, L"201", L"Transfer has no arguments", NULL);
1252 } else {
1253 for(ta = transfer->args; ta != NULL; ta = ta->next)
f7292a8b 1254 sq(sk, ta->next != NULL, L"200", L"%ls", ta->key, L"%ls", ta->val, NULL);
d3372da9 1255 }
1256}
1257
1258static void cmd_hashstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1259{
1260 struct sharecache *node;
1261 int total, hashed;
1262
1263 total = hashed = 0;
1264 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1265 {
1266 if(node->f.b.type == FILE_REG)
1267 {
1268 total++;
1269 if(node->f.b.hastth)
1270 hashed++;
1271 }
1272 }
f7292a8b 1273 sq(sk, 0, L"200", L"%i", total, L"tth", L"%i", hashed, NULL);
d3372da9 1274}
1275
796283c6 1276static void cmd_transstatus(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1277{
796283c6 1278 havepriv(PERM_TRANS);
f7292a8b 1279 sq(sk, 0, L"200", L"down", L"%ll", bytesdownload, L"up", L"%ll", bytesupload, NULL);
796283c6 1280}
1281
5f151349 1282static void cmd_register(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1283{
1284 struct uidata *d2;
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 sq(sk, 0, L"509", L"Name must not begin with a hash sign", NULL);
1293 return;
1294 }
1295 for(d2 = actives; d2 != NULL; d2 = d2->next) {
7b2663a4 1296 if((d2 != data) && (d2->userinfo == data->userinfo) && d2->regname && !wcscmp(d2->regname, argv[1])) {
5f151349 1297 sq(sk, 0, L"516", L"Name already in use", NULL);
1298 return;
1299 }
1300 }
1301 if(data->regname != NULL)
1302 free(data->regname);
1303 data->regname = swcsdup(argv[1]);
1304 sq(sk, 0, L"200", L"Registered", NULL);
1305}
1306
1307static void cmd_sendmsg(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1308{
1309 int i, rcptid;
1310 struct uidata *rcpt;
1311 wchar_t *myname;
1312 struct notif *notif;
1313
1314 haveargs(2);
1315 if(data->userinfo == NULL) {
1316 sq(sk, 0, L"502", L"Must be logged in", NULL);
1317 return;
1318 }
1319 if(argv[1][0] == L'#') {
1320 rcptid = wcstol(argv[1] + 1, NULL, 0);
1321 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1322 if((rcpt->userinfo == data->userinfo) && (rcpt->id == rcptid))
5f151349 1323 break;
1324 }
1325 } else {
1326 for(rcpt = actives; rcpt != NULL; rcpt = rcpt->next) {
7b2663a4 1327 if((rcpt->userinfo == data->userinfo) && rcpt->regname && !wcscmp(rcpt->regname, argv[1]))
5f151349 1328 break;
1329 }
1330 }
1331 if(rcpt == NULL) {
1332 sq(sk, 0, L"517", L"No such recipient", NULL);
1333 return;
1334 }
1335 if(!rcpt->notify.b.msg) {
1336 sq(sk, 0, L"518", L"Recipient not listening for messages", NULL);
1337 return;
1338 }
1339 if(data->regname != NULL)
1340 myname = swcsdup(data->regname);
1341 else
1342 myname = swprintf2(L"#%i", data->id);
1343 notif = newnotif(rcpt, 640, NOTIF_STR, myname, NOTIF_END);
1344 for(i = 2; i < argc; i++)
1345 notifappend(notif, NOTIF_STR, argv[i], NOTIF_END);
1346 sq(sk, 0, L"200", L"Message sent", NULL);
1347}
1348
9a64a4f7 1349static void cmd_uptime(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1350{
f7292a8b 1351 sq(sk, 0, L"200", L"%i", time(NULL) - starttime, NULL);
9a64a4f7 1352}
1353
c45c9b79 1354static void cmd_hup(struct socket *sk, struct uidata *data, int argc, wchar_t **argv)
1355{
1356 extern volatile int reinit;
1357
1358 havepriv(PERM_ADMIN);
1359 flog(LOG_NOTICE, "UI HUP request from %ls", data->username);
1360 reinit = 1;
1361 sq(sk, 0, L"200", L"Will reinit", NULL);
1362}
1363
d3372da9 1364#undef haveargs
1365#undef havepriv
1366
1367/*
1368 * Reserved command numbers for nameless commands:
1369 * 0: Issued when a client has connected
1370 * 1: Issued when a named command couldn't be found
1371 */
1372
1373static struct command commands[] =
1374{
1375 {NULL, cmd_connect},
1376 {NULL, cmd_notfound},
1377 {L"shutdown", cmd_shutdown},
1378 {L"quit", cmd_quit},
1379 {L"lsauth", cmd_lsauth},
1380 {L"login", cmd_login},
1381 {L"pass", cmd_pass},
1382 {L"cnct", cmd_fnetconnect},
1383 {L"lsnodes", cmd_lsnodes},
1384 {L"dcnct", cmd_disconnect},
1385 {L"lspa", cmd_lspa},
1386 {L"lspeers", cmd_lspeers},
1387 {L"download", cmd_download},
1388 {L"lstrans", cmd_lstrans},
1389 {L"cancel", cmd_cancel},
4a9a79b3 1390 {L"reset", cmd_reset},
d3372da9 1391 {L"notify", cmd_notify},
1392 {L"sendchat", cmd_sendchat},
1393 {L"search", cmd_search},
1394 {L"lssrch", cmd_lssrch},
1395 {L"lssr", cmd_lssr},
1396 {L"cansrch", cmd_cansrch},
1397 {L"filtercmd", cmd_filtercmd},
1398 {L"lstrarg", cmd_lstrarg},
1399 {L"hashstatus", cmd_hashstatus},
796283c6 1400 {L"transstatus", cmd_transstatus},
5f151349 1401 {L"register", cmd_register},
1402 {L"sendmsg", cmd_sendmsg},
9a64a4f7 1403 {L"uptime", cmd_uptime},
c45c9b79 1404 {L"hup", cmd_hup},
d3372da9 1405 {NULL, NULL}
1406};
1407
1408static void freequeuecmd(struct qcommand *qcmd)
1409{
1410 int i;
1411
1412 if(qcmd->argv != NULL)
1413 {
1414 for(i = 0; i < qcmd->argc; i++)
1415 free(qcmd->argv[i]);
1416 free(qcmd->argv);
1417 }
1418 free(qcmd);
1419}
1420
1421static struct qcommand *unlinkqcmd(struct uidata *data)
1422{
1423 struct qcommand *qcmd;
1424
1425 qcmd = data->queue;
1426 if(qcmd != NULL)
1427 {
821e3843 1428 data->queuesize--;
d3372da9 1429 data->queue = qcmd->next;
1430 if(qcmd == data->queuelast)
1431 data->queuelast = qcmd->next;
1432 }
1433 return(qcmd);
1434}
1435
ba86d49a 1436static void notifappendv(struct notif *notif, va_list args)
d3372da9 1437{
d3372da9 1438 int dt, ca;
1439
d3372da9 1440 while((dt = va_arg(args, int)) != NOTIF_END)
1441 {
1442 ca = notif->argc;
1443 notif->argv = realloc(notif->argv, sizeof(*notif->argv) * ++notif->argc);
1444 notif->argv[ca].dt = dt;
1445 switch(dt)
1446 {
1447 case NOTIF_INT:
1448 case NOTIF_ID:
1449 notif->argv[ca].d.n = va_arg(args, int);
1450 break;
dcf7a1a2
FT
1451 case NOTIF_OFF:
1452 notif->argv[ca].d.o = va_arg(args, off_t);
1453 break;
d3372da9 1454 case NOTIF_STR:
2af7e5b0 1455 notif->argv[ca].d.s = swcsdup(va_arg(args, wchar_t *));
d3372da9 1456 break;
1457 case NOTIF_FLOAT:
1458 notif->argv[ca].d.d = va_arg(args, double);
1459 break;
1460 }
1461 }
ba86d49a 1462}
1463
1464static void notifappend(struct notif *notif, ...)
1465{
1466 va_list args;
1467
1468 va_start(args, notif);
1469 notifappendv(notif, args);
1470 va_end(args);
1471}
1472
1473static struct notif *newnotif(struct uidata *data, int code, ...)
1474{
1475 struct notif *notif;
1476 va_list args;
1477
1478 notif = smalloc(sizeof(*notif));
1479 memset(notif, 0, sizeof(*notif));
1480 notif->rlimit = 0.0;
1481 notif->ui = data;
1482 notif->code = code;
1483 va_start(args, code);
1484 notifappendv(notif, args);
d3372da9 1485 va_end(args);
1486 notif->next = NULL;
1487 notif->prev = data->lnotif;
1488 if(data->lnotif != NULL)
1489 data->lnotif->next = notif;
1490 else
1491 data->fnotif = notif;
1492 data->lnotif = notif;
1493 return(notif);
1494}
1495
1496static void freenotif(struct notif *notif)
1497{
1498 int i;
1499
1500 if(notif->next != NULL)
1501 notif->next->prev = notif->prev;
1502 if(notif->prev != NULL)
1503 notif->prev->next = notif->next;
1504 if(notif == notif->ui->fnotif)
1505 notif->ui->fnotif = notif->next;
1506 if(notif == notif->ui->lnotif)
1507 notif->ui->lnotif = notif->prev;
1508 if(notif->exptimer != NULL)
1509 canceltimer(notif->exptimer);
1510 for(i = 0; i < notif->argc; i++)
1511 {
1512 if(notif->argv[i].dt == NOTIF_STR)
1513 free(notif->argv[i].d.s);
1514 }
1515 if(notif->argv != NULL)
1516 free(notif->argv);
1517 free(notif);
1518}
1519
1520static void notifexpire(int cancelled, struct notif *notif)
1521{
1522 notif->exptimer = NULL;
1523 if(!cancelled)
1524 freenotif(notif);
1525}
1526
1527static struct notif *findnotif(struct notif *notif, int dir, int state, int code, int id)
1528{
1529 int i, cont;
1530
1531 for(; notif != NULL; notif = (dir?notif->next:notif->prev))
1532 {
1533 if((notif->code == code) && ((state < 0) || (state == notif->state)))
1534 {
1535 cont = 0;
1536 if(id >= 0)
1537 {
1538 for(i = 0; i < notif->argc; i++)
1539 {
1540 if((notif->argv[i].dt == NOTIF_ID) && (notif->argv[i].d.n != id))
1541 {
1542 cont = 1;
1543 break;
1544 }
1545 }
1546 }
1547 if(cont)
1548 continue;
1549 break;
1550 }
1551 }
1552 return(notif);
1553}
1554
1555static void freeuidata(struct uidata *data)
1556{
1557 int i;
1558 struct qcommand *qcmd;
1559
1560 if(data->next != NULL)
1561 data->next->prev = data->prev;
1562 if(data->prev != NULL)
1563 data->prev->next = data->next;
1564 if(data == actives)
1565 actives = data->next;
cab0b442 1566 data->sk->readcb = NULL;
1567 data->sk->errcb = NULL;
68f4d429 1568 closesock(data->sk);
d3372da9 1569 putsock(data->sk);
1570 while((qcmd = unlinkqcmd(data)) != NULL)
1571 freequeuecmd(qcmd);
1572 iconv_close(data->ichandle);
1573 if(data->cw != NULL)
1574 free(data->cw);
1575 if(data->cb != NULL)
1576 free(data->cb);
1577 if(data->argv != NULL)
1578 {
1579 for(i = 0; i < data->argc; i++)
1580 free(data->argv[i]);
1581 free(data->argv);
1582 }
1583 if(data->auth != NULL)
1584 authputhandle(data->auth);
5f151349 1585 if(data->regname != NULL)
1586 free(data->regname);
d3372da9 1587 if(data->username != NULL)
1588 {
1589 if(data->userinfo != NULL)
1590 flog(LOG_INFO, "%ls logged out", data->username);
1591 free(data->username);
1592 }
1593 free(data->inbuf);
1594 while(data->fnotif != NULL)
1595 freenotif(data->fnotif);
1596 if(data->fcmdbuf != NULL)
1597 free(data->fcmdbuf);
1598 if(data->fcmdpid != 0)
1599 kill(-data->fcmdpid, SIGHUP);
1600 if(data->fcmdsk != NULL)
1601 putsock(data->fcmdsk);
1602 free(data);
1603}
1604
1605static void queuecmd(struct uidata *data, struct command *cmd, int argc, wchar_t **argv)
1606{
1607 struct qcommand *new;
1608
1609 new = smalloc(sizeof(*new));
1610 new->cmd = cmd;
1611 new->argc = argc;
1612 new->argv = argv;
1613 new->next = NULL;
1614 if(data->queuelast != NULL)
1615 data->queuelast->next = new;
1616 data->queuelast = new;
1617 if(data->queue == NULL)
1618 data->queue = new;
821e3843 1619 data->queuesize++;
d3372da9 1620}
1621
1622static struct uidata *newuidata(struct socket *sk)
1623{
1624 struct uidata *data;
5f151349 1625 static int curid = 0;
d3372da9 1626
1627 data = smalloc(sizeof(*data));
1628 memset(data, 0, sizeof(*data));
5f151349 1629 data->id = curid++;
d3372da9 1630 data->sk = sk;
1631 getsock(sk);
1632 data->inbuf = smalloc(1024);
1633 data->uid = -1;
1634 if((data->ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1)
1635 {
1636 flog(LOG_CRIT, "iconv cannot handle UTF-8: %s", strerror(errno));
1637 return(NULL);
1638 }
1639 data->next = actives;
1640 data->prev = NULL;
1641 if(actives != NULL)
1642 actives->prev = data;
1643 actives = data;
1644 return(data);
1645}
1646
cab0b442 1647static void uiread(struct socket *sk, struct uidata *data)
d3372da9 1648{
1649 int ret, done;
1650 char *newbuf;
1651 char *p1, *p2;
1652 wchar_t *porig;
1653 size_t datalen, len2;
1654 struct command *cur;
1655
1656 if(data->indata > 1024)
1657 data->indata = 0;
1658 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 1659 return;
d3372da9 1660 sizebuf(&data->inbuf, &data->inbufsize, data->indata + datalen, 1, 1);
1661 memcpy(data->inbuf + data->indata, newbuf, datalen);
1662 free(newbuf);
1663 data->indata += datalen;
1664 if(data->cb == NULL)
1665 {
1666 data->cb = smalloc(sizeof(wchar_t) * (data->cbsize = 64));
1667 data->cbdata = 0;
1668 data->pp = data->cb;
1669 }
1670 done = 0;
1671 while(!done)
1672 {
1673 if(data->cbsize == data->cbdata)
1674 {
1675 len2 = data->pp - data->cb;
1676 data->cb = srealloc(data->cb, sizeof(wchar_t) * (data->cbsize *= 2));
1677 data->pp = data->cb + len2;
1678 }
1679 p1 = data->inbuf;
1680 p2 = (char *)(porig = (data->cb + data->cbdata));
1681 len2 = sizeof(wchar_t) * (data->cbsize - data->cbdata);
1682 ret = iconv(data->ichandle, &p1, &data->indata, &p2, &len2);
1683 memmove(data->inbuf, p1, data->indata);
1684 /* Just a sanity check */
1685 if(((p2 - ((char *)data->cb)) % sizeof(wchar_t)) != 0)
1686 {
1687 flog(LOG_CRIT, "Aiya! iconv does strange things to our wchar_t's!");
1688 abort();
1689 }
1690 data->cbdata += (((wchar_t *)p2) - porig);
1691 if(ret < 0)
1692 {
1693 switch(errno)
1694 {
1695 case EILSEQ:
1696 /* XXX: Should this really just ignore it? */
1697 data->indata = 0;
1698 done = 1;
1699 break;
1700 case EINVAL:
1701 done = 1;
1702 break;
1703 case E2BIG:
1704 /* Just a sanity check */
1705 if(data->cbsize != data->cbdata)
1706 {
1707 flog(LOG_CRIT, "Aiya! iconv doesn't give us wchar_t's!");
1708 abort();
1709 }
1710 break;
1711 default:
1712 flog(LOG_WARNING, "bug: strange error from iconv in uiread: %s", strerror(errno));
1713 break;
1714 }
1715 } else {
1716 done = 1;
1717 }
1718 }
1719 done = 0;
1720 while(!done && (data->pp - data->cb < data->cbdata))
1721 {
1722 switch(data->ps)
1723 {
1724 case 0:
1725 if(iswspace(*data->pp))
1726 {
1727 if(*data->pp == L'\r')
1728 {
1729 if(data->pp == data->cb + data->cbdata - 1)
1730 {
1731 done = 1;
1732 break;
1733 }
1734 if(*(++data->pp) == L'\n')
1735 {
1736 if((data->argv != NULL) && (data->argv[0] != NULL))
1737 {
1738 for(cur = commands; cur->handler != NULL; cur++)
1739 {
1740 if(cur->name == NULL)
1741 continue;
1742 if(!wcscasecmp(cur->name, data->argv[0]))
1743 {
1744 queuecmd(data, cur, data->argc, data->argv);
1745 break;
1746 }
1747 }
1748 if(cur->handler == NULL)
1749 queuecmd(data, &commands[1], data->argc, data->argv);
1750 } else {
1751 queuecmd(data, &commands[1], data->argc, data->argv);
1752 }
1753 data->argv = NULL;
1754 data->args = 0;
1755 data->argc = 0;
1756 wmemmove(data->cb, data->pp, data->cbdata -= (data->pp - data->cb));
1757 data->pp = data->cb;
1758 } else {
1759 data->pp++;
1760 }
1761 } else {
1762 data->pp++;
1763 }
1764 } else {
1765 data->ps = 1;
1766 data->cwdata = 0;
1767 }
1768 break;
1769 case 1:
1770 if(iswspace(*data->pp))
1771 {
1772 addtobuf(data->cw, L'\0');
1773 sizebuf(&data->argv, &data->args, data->argc + 1, sizeof(*data->argv), 1);
1774 data->argv[data->argc++] = data->cw;
1775 data->cw = NULL;
1776 data->cwsize = 0;
1777 data->cwdata = 0;
1778 data->ps = 0;
1779 } else if(*data->pp == L'\"') {
1780 data->ps = 2;
1781 data->pp++;
1782 } else if(*data->pp == L'\\') {
1783 if(data->pp == data->cb + data->cbdata - 1)
1784 {
1785 done = 1;
1786 break;
1787 }
1788 addtobuf(data->cw, *(++data->pp));
1789 data->pp++;
1790 } else {
1791 addtobuf(data->cw, *(data->pp++));
1792 }
1793 break;
1794 case 2:
1795 if(*data->pp == L'\"')
1796 {
1797 data->ps = 1;
1798 } else if(*data->pp == L'\\') {
1799 if(data->pp == data->cb + data->cbdata - 1)
1800 {
1801 done = 1;
1802 break;
1803 }
1804 addtobuf(data->cw, *(++(data->pp)));
1805 } else {
1806 addtobuf(data->cw, *data->pp);
1807 }
1808 data->pp++;
1809 break;
1810 }
1811 }
821e3843
FT
1812 if(data->cbdata > 16384)
1813 {
1814 /* Kill clients that send us unreasonably long lines */
1815 data->close = 1;
1816 }
d3372da9 1817}
1818
cab0b442 1819static void uierror(struct socket *sk, int err, struct uidata *data)
d3372da9 1820{
1821 if(err)
1822 flog(LOG_WARNING, "error occurred on UI socket: %s", strerror(err));
1823 freeuidata(data);
1824}
1825
d1ef0200 1826static void uiaccept(struct lport *lp, struct socket *newsk, void *data)
d3372da9 1827{
1828 struct uidata *uidata;
1829
cab0b442 1830 newsk->data = uidata = newuidata(newsk);
d3372da9 1831 socksettos(newsk, confgetint("ui", "uitos"));
1832 if(uidata == NULL)
cab0b442 1833 return;
1834 newsk->errcb = (void (*)(struct socket *, int, void *))uierror;
1835 newsk->readcb = (void (*)(struct socket *, void *))uiread;
d3372da9 1836 queuecmd(uidata, &commands[0], 0, NULL);
1837}
1838
1839static int srcheta(struct search *srch, void *uudata)
1840{
1841 struct uidata *data;
1842
1843 for(data = actives; data != NULL; data = data->next)
1844 {
1845 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1846 newnotif(data, 620, NOTIF_ID, srch->id, NOTIF_INT, srch->eta - time(NULL), NOTIF_END);
1847 }
1848 return(0);
1849}
1850
1851static int srchcommit(struct search *srch, void *uudata)
1852{
1853 struct uidata *data;
1854
1855 for(data = actives; data != NULL; data = data->next)
1856 {
1857 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
1858 newnotif(data, 621, NOTIF_ID, srch->id, NOTIF_END);
1859 }
1860 return(0);
1861}
1862
1863static int srchres(struct search *srch, struct srchres *sr, void *uudata)
1864{
1865 struct uidata *data;
1866
1867 for(data = actives; data != NULL; data = data->next)
1868 {
1869 if(haspriv(data, PERM_SRCH) && data->notify.b.srch && !wcscmp(srch->owner, data->username))
ebbc13f3 1870 {
dcf7a1a2 1871 newnotif(data, 622, NOTIF_ID, srch->id, NOTIF_STR, sr->filename, NOTIF_STR, sr->fnet->name, NOTIF_STR, sr->peerid, NOTIF_OFF, sr->size,
5123bec0 1872 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 1873 }
d3372da9 1874 }
1875 return(0);
1876}
1877
1878static int recvchat(struct fnetnode *fn, int public, wchar_t *name, wchar_t *peer, wchar_t *string, void *uudata)
1879{
1880 struct uidata *data;
1881
1882 for(data = actives; data != NULL; data = data->next)
1883 {
1884 if(haspriv(data, PERM_CHAT) && data->notify.b.fnchat)
1885 newnotif(data, 600, NOTIF_ID, fn->id, NOTIF_INT, public, NOTIF_STR, name, NOTIF_STR, peer, NOTIF_STR, string, NOTIF_END);
1886 }
1887 return(0);
1888}
1889
1890static int fnactive(struct fnetnode *fn, wchar_t *attrib, void *uudata)
1891{
1892 struct uidata *data;
1893 struct notif *notif;
1894
1895 if(!wcscmp(attrib, L"state"))
1896 {
1897 for(data = actives; data != NULL; data = data->next)
1898 {
1899 if(data->notify.b.fnact)
1900 newnotif(data, 601, NOTIF_ID, fn->id, NOTIF_INT, fn->state, NOTIF_END);
1901 }
1902 } else if(!wcscmp(attrib, L"name")) {
1903 for(data = actives; data != NULL; data = data->next)
1904 {
1905 if(data->notify.b.fnact)
1906 newnotif(data, 602, NOTIF_ID, fn->id, NOTIF_STR, fn->name, NOTIF_END);
1907 }
1908 } else if(!wcscmp(attrib, L"numpeers")) {
1909 for(data = actives; data != NULL; data = data->next)
1910 {
1911 if(data->notify.b.fnact)
1912 {
1913 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 605, fn->id)) != NULL)
1914 notif->argv[1].d.n = fn->numpeers;
1915 else
ba86d49a 1916 newnotif(data, 605, NOTIF_ID, fn->id, NOTIF_INT, fn->numpeers, NOTIF_END)->rlimit = 0.5;
d3372da9 1917 }
1918 }
1919 }
1920 return(0);
1921}
1922
1923static int fnunlink(struct fnetnode *fn, void *uudata)
1924{
1925 struct uidata *data;
1926
1927 for(data = actives; data != NULL; data = data->next)
1928 {
1929 if(data->notify.b.fnact)
1930 newnotif(data, 603, NOTIF_ID, fn->id, NOTIF_END);
1931 }
1932 return(0);
1933}
1934
ba86d49a 1935static int peernew(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1936{
1937 struct uidata *data;
1938
1939 for(data = actives; data != NULL; data = data->next)
1940 {
1941 if(data->notify.b.fnpeer)
1942 newnotif(data, 630, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1943 }
1944 return(0);
1945}
1946
1947static int peerdel(struct fnetnode *fn, struct fnetpeer *peer, void *uudata)
1948{
1949 struct uidata *data;
1950
1951 for(data = actives; data != NULL; data = data->next)
1952 {
1953 if(data->notify.b.fnpeer)
1954 newnotif(data, 631, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_END);
1955 }
1956 return(0);
1957}
1958
1959static int peerchange(struct fnetnode *fn, struct fnetpeer *peer, struct fnetpeerdi *di, void *uudata)
1960{
1961 struct uidata *data;
1962 struct notif *notif;
1963 wchar_t buf[32];
1964
1965 for(data = actives; data != NULL; data = data->next)
1966 {
1967 if(data->notify.b.fnpeer)
1968 {
1969 for(notif = data->fnotif; notif != NULL; notif = notif->next)
1970 {
1971 if((notif->code == 632) && (notif->state == NOTIF_PEND) && (notif->argv[0].d.n == fn->id) && !wcscmp(notif->argv[1].d.s, peer->id))
1972 break;
1973 }
1974 if(notif == NULL)
1975 notif = newnotif(data, 632, NOTIF_INT, fn->id, NOTIF_STR, peer->id, NOTIF_STR, peer->nick, NOTIF_END);
1976 notifappend(notif, NOTIF_STR, di->datum->id, NOTIF_INT, di->datum->datatype, NOTIF_END);
1977 switch(di->datum->datatype)
1978 {
1979 case FNPD_INT:
1980 notifappend(notif, NOTIF_INT, di->data.num, NOTIF_END);
1981 break;
1982 case FNPD_STR:
1983 notifappend(notif, NOTIF_STR, di->data.str, NOTIF_END);
1984 break;
1985 case FNPD_LL:
1986 swprintf(buf, sizeof(buf) / sizeof(*buf), L"%lli", di->data.lnum);
1987 notifappend(notif, NOTIF_STR, buf, NOTIF_END);
1988 break;
1989 }
1990 }
1991 }
1992 return(0);
1993}
1994
d3372da9 1995static int newfnetnode(struct fnetnode *fn, void *uudata)
1996{
1997 struct uidata *data;
1998
1999 for(data = actives; data != NULL; data = data->next)
2000 {
2001 if(data->notify.b.fnact)
2002 newnotif(data, 604, NOTIF_ID, fn->id, NOTIF_STR, fn->fnet->name, NOTIF_END);
2003 }
2004 CBREG(fn, fnetnode_ac, fnactive, NULL, NULL);
2005 CBREG(fn, fnetnode_chat, recvchat, NULL, NULL);
2006 CBREG(fn, fnetnode_unlink, fnunlink, NULL, NULL);
ba86d49a 2007 CBREG(fn, fnetpeer_new, peernew, NULL, NULL);
2008 CBREG(fn, fnetpeer_del, peerdel, NULL, NULL);
2009 CBREG(fn, fnetpeer_chdi, peerchange, NULL, NULL);
d3372da9 2010 return(0);
2011}
2012
2013static int transferchattr(struct transfer *transfer, wchar_t *attrib, void *uudata)
2014{
2015 struct uidata *data;
2016
2017 if(!wcscmp(attrib, L"state"))
2018 {
2019 for(data = actives; data != NULL; data = data->next)
2020 {
2021 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2022 newnotif(data, 611, NOTIF_ID, transfer->id, NOTIF_INT, transfer->state, NOTIF_END);
2023 }
2024 } else if(!wcscmp(attrib, L"nick")) {
2025 for(data = actives; data != NULL; data = data->next)
2026 {
2027 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2028 newnotif(data, 612, NOTIF_ID, transfer->id, NOTIF_STR, transfer->peernick, NOTIF_END);
2029 }
2030 } else if(!wcscmp(attrib, L"size")) {
2031 for(data = actives; data != NULL; data = data->next)
2032 {
2033 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
dcf7a1a2 2034 newnotif(data, 613, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->size, NOTIF_END);
d3372da9 2035 }
2036 } else if(!wcscmp(attrib, L"error")) {
2037 for(data = actives; data != NULL; data = data->next)
2038 {
2039 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2040 newnotif(data, 614, NOTIF_ID, transfer->id, NOTIF_INT, transfer->error, NOTIF_END);
2041 }
2042 } else if(!wcscmp(attrib, L"path")) {
2043 for(data = actives; data != NULL; data = data->next)
2044 {
2045 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2046 newnotif(data, 616, NOTIF_ID, transfer->id, NOTIF_STR, transfer->path, NOTIF_END);
2047 }
a04fc9ff 2048 } else if(!wcscmp(attrib, L"hash")) {
2049 for(data = actives; data != NULL; data = data->next)
2050 {
2051 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
5e13cdca 2052 newnotif(data, 618, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->hash == NULL)?L"":unparsehash(transfer->hash), NOTIF_END);
a04fc9ff 2053 }
d3372da9 2054 }
2055 return(0);
2056}
2057
2058static int transferprog(struct transfer *transfer, void *uudata)
2059{
2060 struct uidata *data;
2061 struct notif *notif;
2062
2063 for(data = actives; data != NULL; data = data->next)
2064 {
2065 if(haspriv(data, PERM_TRANS) && data->notify.b.trprog && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2066 {
2067 if((notif = findnotif(data->fnotif, 1, NOTIF_PEND, 615, transfer->id)) != NULL)
dcf7a1a2 2068 notif->argv[1].d.o = transfer->curpos;
d3372da9 2069 else
dcf7a1a2 2070 newnotif(data, 615, NOTIF_ID, transfer->id, NOTIF_OFF, transfer->curpos, NOTIF_END)->rlimit = 0.5;
d3372da9 2071 }
2072 }
2073 return(0);
2074}
2075
2076static int transferdestroyed(struct transfer *transfer, void *uudata)
2077{
2078 struct uidata *data;
2079
2080 for(data = actives; data != NULL; data = data->next)
2081 {
2082 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
3d204c2d 2083 newnotif(data, 617, NOTIF_ID, transfer->id, NOTIF_STR, (transfer->exitstatus == NULL)?L"":(transfer->exitstatus), NOTIF_END);
d3372da9 2084 }
2085 return(0);
2086}
2087
2088static int newtransfernotify(struct transfer *transfer, void *uudata)
2089{
2090 struct uidata *data;
2091
2092 for(data = actives; data != NULL; data = data->next)
2093 {
2094 if(haspriv(data, PERM_TRANS) && data->notify.b.tract && ((transfer->owner == 0) || (transfer->owner == data->uid)))
2095 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);
2096 }
2097 CBREG(transfer, trans_ac, transferchattr, NULL, NULL);
2098 CBREG(transfer, trans_p, transferprog, NULL, NULL);
2099 CBREG(transfer, trans_destroy, transferdestroyed, NULL, NULL);
2100 return(0);
2101}
2102
2103static struct uiuser *newuser(wchar_t *name, unsigned long perms)
2104{
2105 struct uiuser *new;
2106
2107 new = smalloc(sizeof(*new));
2108 new->used = 0;
2109 new->name = swcsdup(name);
2110 new->perms = perms;
2111 new->delete = 0;
2112 new->next = users;
2113 new->prev = NULL;
2114 if(users != NULL)
2115 users->prev = new;
2116 users = new;
2117 return(new);
2118}
2119
2120static void freeuser(struct uiuser *user)
2121{
2122 if(user->next != NULL)
2123 user->next->prev = user->prev;
2124 if(user->prev != NULL)
2125 user->prev->next = user->next;
2126 if(user == users)
2127 users = user->next;
2128 free(user->name);
2129 free(user);
2130}
2131
2132static int conf_user(int argc, wchar_t **argv)
2133{
2134 int i, perms, permmod;
2135 struct uiuser *user;
2136 wchar_t *p;
2137
2138 if(argc < 3)
2139 {
2140 flog(LOG_WARNING, "not enough arguments given for user command");
2141 return(1);
2142 }
2143 perms = 0;
2144 for(i = 2; i < argc; i++)
2145 {
2146 if(!iswalpha(argv[i][0]))
2147 p = argv[i] + 1;
2148 else
2149 p = argv[i];
2150 if(!wcscmp(p, L"disallow"))
2151 permmod = PERM_DISALLOW;
2152 if(!wcscmp(p, L"admin"))
2153 permmod = PERM_ADMIN;
2154 if(!wcscmp(p, L"fnetctl"))
2155 permmod = PERM_FNETCTL;
2156 if(!wcscmp(p, L"trans"))
2157 permmod = PERM_TRANS;
2158 if(!wcscmp(p, L"transcu"))
2159 permmod = PERM_TRANSCU;
2160 if(!wcscmp(p, L"chat"))
2161 permmod = PERM_CHAT;
2162 if(!wcscmp(p, L"srch"))
2163 permmod = PERM_SRCH;
2164 if(!wcscmp(p, L"all"))
2165 permmod = ~0;
2166 if(argv[i][0] == L'-')
2167 perms &= ~permmod;
2168 else
2169 perms |= permmod;
2170 }
2171 if((user = finduser(argv[1])) == NULL)
2172 {
2173 newuser(argv[1], perms);
2174 } else {
2175 user->delete = 0;
2176 user->perms = perms;
2177 }
2178 return(0);
2179}
2180
2181static void preinit(int hup)
2182{
2183 struct uiuser *user;
2184
2185 if(!hup)
2186 {
8754fb85 2187 newuser(L"default", PERM_DISALLOW);
d3372da9 2188 } else {
2189 for(user = users; user != NULL; user = user->next)
2190 {
2191 if(!wcscmp(user->name, L"default"))
2192 user->delete = 1;
2193 }
2194 }
2195}
2196
ddb933f1 2197static struct sockaddr_un *makeunixname(void)
2198{
2199 static struct sockaddr_un buf;
2200 char *val;
2201 struct passwd *pwd;
2202 uid_t uid;
2203
2204 memset(&buf, 0, sizeof(buf));
2205 buf.sun_family = PF_UNIX;
2206 if((val = icswcstombs(confgetstr("ui", "unixsock"), NULL, NULL)) == NULL) {
2207 flog(LOG_WARNING, "could not map Unix socket name into local charset: %s", strerror(errno));
2208 return(NULL);
2209 }
2210 if(!strcmp(val, "none"))
2211 return(NULL);
2212 if(!strcmp(val, "default"))
2213 {
2214 if((uid = getuid()) == 0)
2215 {
2216 strcpy(buf.sun_path, "/var/run/doldacond.sock");
2217 return(&buf);
2218 } else {
2219 if((pwd = getpwuid(uid)) == NULL)
2220 {
2221 flog(LOG_ERR, "could not get passwd entry for current user: %s", strerror(errno));
2222 return(NULL);
2223 }
2224 strcpy(buf.sun_path, "/tmp/doldacond-");
2225 strcat(buf.sun_path, pwd->pw_name);
2226 return(&buf);
2227 }
2228 }
2229 if(strchr(val, '/'))
2230 {
2231 strcpy(buf.sun_path, val);
2232 return(&buf);
2233 }
2234 flog(LOG_WARNING, "invalid Unix socket name: %s", val);
2235 return(NULL);
2236}
2237
2238static int tcpportupdate(struct configvar *var, void *uudata)
d3372da9 2239{
d1ef0200 2240 struct lport *newsock;
d3372da9 2241
ddb933f1 2242 newsock = NULL;
2243 if((var->val.num != -1) && ((newsock = netcstcplisten(var->val.num, 1, uiaccept, NULL)) == NULL))
d3372da9 2244 {
ddb933f1 2245 flog(LOG_WARNING, "could not create new TCP UI socket, reverting to old: %s", strerror(errno));
d3372da9 2246 return(0);
2247 }
ddb933f1 2248 if(tcpsocket != NULL)
2249 {
d1ef0200 2250 closelport(tcpsocket);
ddb933f1 2251 tcpsocket = NULL;
2252 }
2253 tcpsocket = newsock;
2254 return(0);
2255}
2256
2257static int unixsockupdate(struct configvar *var, void *uudata)
2258{
d1ef0200 2259 struct lport *newsock;
ddb933f1 2260 struct sockaddr_un *un;
4cb04c42 2261 mode_t ou;
ddb933f1 2262
2263 newsock = NULL;
4cb04c42 2264 ou = umask(0111);
ddb933f1 2265 if(((un = makeunixname()) != NULL) && ((newsock = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
2266 {
4cb04c42 2267 umask(ou);
ddb933f1 2268 flog(LOG_WARNING, "could not create new Unix UI socket, reverting to old: %s", strerror(errno));
2269 return(0);
2270 }
4cb04c42 2271 umask(ou);
ddb933f1 2272 if(unixsocket != NULL)
2273 {
d1ef0200 2274 closelport(unixsocket);
ddb933f1 2275 unixsocket = NULL;
2276 }
2277 unixsocket = newsock;
d3372da9 2278 return(0);
2279}
2280
2281static int init(int hup)
2282{
d3372da9 2283 struct uiuser *user, *next;
ddb933f1 2284 struct sockaddr_un *un;
8754fb85 2285 struct passwd *pwd;
2286 wchar_t *wcsname;
4cb04c42 2287 mode_t ou;
d3372da9 2288
2289 if(hup)
2290 {
2291 for(user = users; user != NULL; user = next)
2292 {
2293 next = user->next;
2294 if(user->delete)
2295 freeuser(user);
2296 }
2297 }
2298 if(!hup)
2299 {
9a64a4f7 2300 starttime = time(NULL);
ddb933f1 2301 if((confgetint("ui", "port") != -1) && ((tcpsocket = netcstcplisten(confgetint("ui", "port"), 1, uiaccept, NULL)) == NULL))
2302 {
2303 flog(LOG_CRIT, "could not create TCP UI socket: %s", strerror(errno));
2304 return(1);
2305 }
2306 CBREG(confgetvar("ui", "port"), conf_update, tcpportupdate, NULL, NULL);
4cb04c42 2307 ou = umask(0111);
ddb933f1 2308 if(((un = makeunixname()) != NULL) && ((unixsocket = netcslistenlocal(SOCK_STREAM, (struct sockaddr *)un, sizeof(*un), uiaccept, NULL)) == NULL))
d3372da9 2309 {
4cb04c42 2310 umask(ou);
ddb933f1 2311 flog(LOG_CRIT, "could not create Unix UI socket: %s", strerror(errno));
d3372da9 2312 return(1);
2313 }
4cb04c42 2314 umask(ou);
ddb933f1 2315 CBREG(confgetvar("ui", "unixsock"), conf_update, unixsockupdate, NULL, NULL);
d3372da9 2316 GCBREG(newfncb, newfnetnode, NULL);
2317 GCBREG(newtransfercb, newtransfernotify, NULL);
2318 }
8754fb85 2319 if(getuid() != 0)
2320 {
2321 for(user = users; user != NULL; user = user->next)
2322 {
2323 if(wcscmp(user->name, L"default"))
2324 break;
2325 }
2326 if(!user)
2327 {
2328 if((pwd = getpwuid(getuid())) == NULL)
2329 {
2330 flog(LOG_CRIT, "could not get login info: %s", strerror(errno));
2331 return(1);
2332 }
2333 if((wcsname = icmbstowcs(pwd->pw_name, NULL)) == NULL)
2334 {
2335 flog(LOG_CRIT, "could not convert user name into wcs: %s", strerror(errno));
2336 return(1);
2337 }
2338 newuser(wcsname, ~PERM_DISALLOW);
2339 free(wcsname);
2340 }
2341 }
d3372da9 2342 return(0);
2343}
2344
2345static int run(void)
2346{
2347 int i, id;
2348 struct uidata *data, *next;
2349 struct qcommand *qcmd;
2350 struct notif *notif, *nnotif;
d3372da9 2351
2352 for(data = actives; data != NULL; data = next)
2353 {
2354 next = data->next;
2355 if(data->close)
2356 freeuidata(data);
2357 }
2358 for(data = actives; data != NULL; data = data->next)
2359 {
2360 for(notif = data->fnotif; notif != NULL; notif = nnotif)
2361 {
2362 nnotif = notif->next;
2363 if(notif->state == NOTIF_WAIT)
2364 continue;
2365 id = -1;
2366 for(i = 0; i < notif->argc; i++)
2367 {
2368 if(notif->argv[i].dt == NOTIF_ID)
2369 {
2370 id = notif->argv[i].d.n;
2371 break;
2372 }
2373 }
2374 if(findnotif(notif->prev, 0, -1, notif->code, id) != NULL)
2375 continue;
f7292a8b 2376 sq(data->sk, 2, L"%i", notif->code, NULL);
d3372da9 2377 for(i = 0; i < notif->argc; i++)
2378 {
2379 switch(notif->argv[i].dt)
2380 {
2381 case NOTIF_INT:
2382 case NOTIF_ID:
f7292a8b 2383 sq(data->sk, 2, L"%i", notif->argv[i].d.n, NULL);
d3372da9 2384 break;
dcf7a1a2
FT
2385 case NOTIF_OFF:
2386 sq(data->sk, 2, L"%oi", notif->argv[i].d.o, NULL);
2387 break;
d3372da9 2388 case NOTIF_STR:
2389 if(notif->argv[i].d.s[0] == L'%')
f7292a8b 2390 sq(data->sk, 2, L"%ls", notif->argv[i].d.s, NULL);
d3372da9 2391 else
2392 sq(data->sk, 2, notif->argv[i].d.s, NULL);
2393 break;
2394 case NOTIF_FLOAT:
f7292a8b 2395 sq(data->sk, 2, L"%f", notif->argv[i].d.d, NULL);
d3372da9 2396 break;
2397 }
2398 }
2399 sq(data->sk, 0, NULL);
2400 if(notif->rlimit != 0)
2401 {
2402 notif->state = NOTIF_WAIT;
2403 notif->exptimer = timercallback(ntime() + notif->rlimit, (void (*)(int, void *))notifexpire, notif);
2404 } else {
2405 freenotif(notif);
2406 }
2407 }
2408 if((qcmd = unlinkqcmd(data)) != NULL)
2409 {
2410 qcmd->cmd->handler(data->sk, data, qcmd->argc, qcmd->argv);
2411 freequeuecmd(qcmd);
2412 return(1);
2413 }
821e3843
FT
2414 if(data->queuesize > 10)
2415 {
2416 /* Clients should not be queue up commands at all, since
2417 * they should not send a new command before receiving a
2418 * reply to the previous command. Therefore, we
2419 * mercilessly massacre clients which are stacking up too
2420 * many commands. */
2421 data->close = 1;
2422 }
d3372da9 2423 }
2424 return(0);
2425}
2426
2427static void terminate(void)
2428{
2429 while(users != NULL)
2430 freeuser(users);
ddb933f1 2431 if(tcpsocket != NULL)
d1ef0200 2432 closelport(tcpsocket);
ddb933f1 2433 if(unixsocket != NULL)
d1ef0200 2434 closelport(unixsocket);
d3372da9 2435}
2436
2437static struct configvar myvars[] =
2438{
d9f89ef5 2439 /** If true, UI connections will only be accepted from localhost
2440 * addresses (127.0.0.1, ::1 or ::ffff:127.0.0.1). Unless you are
2441 * completely sure that you know what you are doing, never turn
2442 * this off when auth.authless is on. */
d3372da9 2443 {CONF_VAR_BOOL, "onlylocal", {.num = 1}},
ddb933f1 2444 /** The TCP port number on which to accept UI client connections,
2445 * or -1 to not listen on TCP. */
d3372da9 2446 {CONF_VAR_INT, "port", {.num = 1500}},
ddb933f1 2447 /**
2448 * Controls the the name to use for the Unix socket on which to
2449 * accept UI client connections. If the name contains a slash, it
2450 * is treated as a file name to bind on. If the name is "default",
2451 * the file name will be "/var/run/doldacond.sock" if doldacond
2452 * runs with UID == 0, or "/tmp/doldacond-NAME" otherwise, where
2453 * NAME is the user name of the UID which doldacond runs as. If
2454 * the name is "none", no Unix socket will be used. Otherwise, an
2455 * error is signaled.
2456 */
2457 {CONF_VAR_STRING, "unixsock", {.str = L"default"}},
d9f89ef5 2458 /** The TOS value to use for UI connections (see the TOS VALUES
2459 * section). */
d3372da9 2460 {CONF_VAR_INT, "uitos", {.num = SOCK_TOS_MINDELAY}},
d9f89ef5 2461 /** The name of the filtercmd script (see the FILES section for
2462 * lookup information). */
d3372da9 2463 {CONF_VAR_STRING, "filtercmd", {.str = L"dc-filtercmd"}},
2464 {CONF_VAR_END}
2465};
2466
2467static struct configcmd mycmds[] =
2468{
2469 {"user", conf_user},
2470 {NULL}
2471};
2472
2473static struct module me =
2474{
2475 .name = "ui",
2476 .conf =
2477 {
2478 .vars = myvars,
2479 .cmds = mycmds
2480 },
2481 .preinit = preinit,
2482 .init = init,
2483 .run = run,
2484 .terminate = terminate
2485};
2486
2487MODULE(me)