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Updated Gaim plugin info.
[doldaconnect.git] / lib / uimisc.c
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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
20#include <unistd.h>
21#include <stdlib.h>
22/* I'm very unsure about this, but for now it defines wcstoll (which
23 * should be defined anyway) and doesn't break anything... let's keep
24 * two eyes wide open, though. */
25#define __USE_ISOC99
26#include <wchar.h>
27#include <wctype.h>
28#include <pwd.h>
29#include <string.h>
30#include <stdio.h>
31
32#ifdef HAVE_CONFIG_H
33#include <config.h>
34#endif
35#include <doldaconnect/uilib.h>
36#include <doldaconnect/uimisc.h>
37#include <utils.h>
38
39#ifdef HAVE_KRB5
40#include <krb5.h>
41#include <com_err.h>
42#endif
43
44struct logindata;
45
46struct authmech
47{
48 wchar_t *name;
49 void (*process)(struct dc_response *resp, struct logindata *data);
50 int (*init)(struct logindata *data);
51 void (*release)(struct logindata *data);
52};
53
54struct logindata
55{
56 int (*conv)(int type, wchar_t *text, char **resp, void *data);
57 void (*callback)(int err, wchar_t *reason, void *data);
58 char *username;
59 int freeusername;
60 int useauthless;
61 void *data;
62 void *mechdata;
63 struct authmech *mech;
64};
65
66struct gencbdata
67{
68 void (*callback)(int resp, void *data);
69 void *data;
70};
71
72struct fnetcbdata
73{
74 void (*callback)(struct dc_fnetnode *fn, int resp, void *data);
75 int fnid;
76 void *data;
77};
78
79struct dc_fnetnode *dc_fnetnodes = NULL;
80struct dc_transfer *dc_transfers = NULL;
81
82static void message(char *format, ...)
83{
84 static int on = -1;
85 char *v;
86 va_list args;
87
88 if(on == -1)
89 {
90 on = 0;
91 if((v = getenv("LIBDCUI_MSG")) != NULL)
92 {
93 if(strtol(v, NULL, 0) & 1)
94 on = 1;
95 }
96 }
97 if(on == 1)
98 {
99 va_start(args, format);
100 vfprintf(stderr, format, args);
101 va_end(args);
102 }
103}
104
105static void freelogindata(struct logindata *data)
106{
107 if((data->mech != NULL) && (data->mech->release != NULL))
108 data->mech->release(data);
109 if(data->freeusername)
110 free(data->username);
111 free(data);
112}
113
114static int logincallback(struct dc_response *resp);
115
116static void process_authless(struct dc_response *resp, struct logindata *data)
117{
118 switch(resp->code)
119 {
120 case 200:
121 data->callback(DC_LOGIN_ERR_SUCCESS, NULL, data->data);
122 freelogindata(data);
123 break;
124/*
125 case 303:
126 case 304:
127 if((ires = dc_interpret(resp)) != NULL)
128 {
129 buf = NULL;
130 if(data->conv((resp->code == 303)?DC_LOGIN_CONV_INFO:DC_LOGIN_CONV_ERROR, ires->argv[0].val.str, &buf, data->data))
131 {
132 data->callback(DC_LOGIN_ERR_CONV, NULL, data->data);
133 freelogindata(data);
134 } else {
135 dc_queuecmd(logincallback, data, L"pass", L"", NULL);
136 }
137 if(buf != NULL)
138 {
139 memset(buf, 0, strlen(buf));
140 free(buf);
141 }
142 dc_freeires(ires);
143 }
144 break;
145*/
146 case 505:
147 data->callback(DC_LOGIN_ERR_SERVER, NULL, data->data);
148 freelogindata(data);
149 break;
150 case 506:
151 data->callback(DC_LOGIN_ERR_AUTHFAIL, NULL, data->data);
152 freelogindata(data);
153 break;
154 default:
155 data->callback(DC_LOGIN_ERR_USER, NULL, data->data);
156 freelogindata(data);
157 break;
158 }
159}
160
161static void process_pam(struct dc_response *resp, struct logindata *data)
162{
163 struct dc_intresp *ires;
164 int convtype;
165 char *buf;
166
167 switch(resp->code)
168 {
169 case 200:
170 data->callback(DC_LOGIN_ERR_SUCCESS, NULL, data->data);
171 freelogindata(data);
172 break;
173 case 301:
174 case 302:
175 case 303:
176 case 304:
177 if(resp->code == 301)
178 convtype = DC_LOGIN_CONV_NOECHO;
179 else if(resp->code == 302)
180 convtype = DC_LOGIN_CONV_ECHO;
181 else if(resp->code == 303)
182 convtype = DC_LOGIN_CONV_INFO;
183 else if(resp->code == 304)
184 convtype = DC_LOGIN_CONV_ERROR;
185 if((ires = dc_interpret(resp)) != NULL)
186 {
187 buf = NULL;
188 if(data->conv(convtype, ires->argv[0].val.str, &buf, data->data))
189 {
190 data->callback(DC_LOGIN_ERR_CONV, NULL, data->data);
191 freelogindata(data);
192 } else {
193 dc_queuecmd(logincallback, data, L"pass", L"%%s", buf, NULL);
194 }
195 if(buf != NULL)
196 {
197 memset(buf, 0, strlen(buf));
198 free(buf);
199 }
200 dc_freeires(ires);
201 }
202 break;
203 case 505:
204 data->callback(DC_LOGIN_ERR_SERVER, NULL, data->data);
205 freelogindata(data);
206 break;
207 case 506:
208 data->callback(DC_LOGIN_ERR_AUTHFAIL, NULL, data->data);
209 freelogindata(data);
210 break;
211 default:
212 data->callback(DC_LOGIN_ERR_USER, NULL, data->data);
213 freelogindata(data);
214 break;
215 }
216}
217
218#ifdef HAVE_KRB5
219struct krb5data
220{
221 int state;
222 krb5_context context;
223 krb5_principal sprinc, myprinc;
224 krb5_ccache ccache;
225 krb5_auth_context authcon;
226 krb5_data reqbuf;
227 krb5_creds *servcreds;
228 int valid, fwd, fwded;
229};
230
231static void process_krb5(struct dc_response *resp, struct logindata *data)
232{
233 int ret;
234 struct dc_intresp *ires;
235 struct krb5data *krb;
236 krb5_data k5d;
237 krb5_ap_rep_enc_part *repl;
238 char *buf;
239
240 krb = data->mechdata;
241 switch(resp->code)
242 {
243 case 200:
244 data->callback(DC_LOGIN_ERR_SUCCESS, NULL, data->data);
245 freelogindata(data);
246 break;
247 case 300:
248 switch(krb->state)
249 {
250 case 0:
251 buf = hexencode(krb->reqbuf.data, krb->reqbuf.length);
252 dc_queuecmd(logincallback, data, L"pass", L"%%s", buf, NULL);
253 free(buf);
254 krb->state = 1;
255 break;
256 case 1:
257 if((ires = dc_interpret(resp)) != NULL)
258 {
259 k5d.data = hexdecode(icswcstombs(ires->argv[0].val.str, NULL, NULL), &k5d.length);
260 if(!krb->valid)
261 {
262 if((ret = krb5_rd_rep(krb->context, krb->authcon, &k5d, &repl)) != 0)
263 {
264 data->callback(DC_LOGIN_ERR_SERVER, NULL, data->data);
265 freelogindata(data);
266 break;
267 }
268 /* XXX: Do I need to do something with this? */
269 krb->valid = 1;
270 krb5_free_ap_rep_enc_part(krb->context, repl);
271 }
272 if(krb->fwd && !krb->fwded)
273 {
274 if(krb->reqbuf.data != NULL)
275 free(krb->reqbuf.data);
276 krb->reqbuf.data = NULL;
277 if((ret = krb5_fwd_tgt_creds(krb->context, krb->authcon, NULL, krb->servcreds->client, krb->servcreds->server, 0, 1, &krb->reqbuf)) != 0)
278 {
279 message("krb5_fwd_tgt_creds reported an error: %s\n", error_message(ret));
280 dc_queuecmd(logincallback, data, L"pass", L"31", NULL);
281 krb->fwd = 0;
282 krb->state = 2;
283 } else {
284 dc_queuecmd(logincallback, data, L"pass", L"32", NULL);
285 krb->state = 0;
286 krb->fwded = 1;
287 }
288 } else {
289 dc_queuecmd(logincallback, data, L"pass", L"31", NULL);
290 krb->state = 2;
291 }
292 free(k5d.data);
293 dc_freeires(ires);
294 }
295 break;
296 default:
297 data->callback(DC_LOGIN_ERR_USER, NULL, data->data);
298 freelogindata(data);
299 break;
300 }
301 break;
302 case 505:
303 data->callback(DC_LOGIN_ERR_SERVER, NULL, data->data);
304 freelogindata(data);
305 break;
306 case 506:
307 data->callback(DC_LOGIN_ERR_AUTHFAIL, NULL, data->data);
308 freelogindata(data);
309 break;
310 default:
311 data->callback(DC_LOGIN_ERR_USER, NULL, data->data);
312 freelogindata(data);
313 break;
314 }
315}
316
317static int init_krb5(struct logindata *data)
318{
319 int ret;
320 struct krb5data *krb;
321 krb5_data cksum;
322 krb5_creds creds;
323
324 if(dc_gethostname() == NULL)
325 {
326 message("cannot use krb5 without a host name");
327 return(1);
328 }
329 krb = smalloc(sizeof(*krb));
330 memset(krb, 0, sizeof(*krb));
331 krb->fwd = 1;
332 krb->fwded = 0;
333 data->mechdata = krb;
334 if((ret = krb5_init_context(&krb->context)) != 0)
335 {
336 message("krb5_init_context reported an error: %s\n", error_message(ret));
337 return(1);
338 }
339 if((ret = krb5_auth_con_init(krb->context, &krb->authcon)) != 0)
340 {
341 message("krb5_auth_con_init reported an error: %s\n", error_message(ret));
342 return(1);
343 }
344 krb5_auth_con_setflags(krb->context, krb->authcon, KRB5_AUTH_CONTEXT_DO_SEQUENCE);
345 if((ret = krb5_sname_to_principal(krb->context, dc_gethostname(), "doldacond", KRB5_NT_SRV_HST, &krb->sprinc)) != 0)
346 {
347 message("krb5_sname_to_principal reported an error: %s\n", error_message(ret));
348 return(1);
349 }
350 if((ret = krb5_cc_default(krb->context, &krb->ccache)) != 0)
351 {
352 message("krb5_cc_default reported an error: %s\n", error_message(ret));
353 return(1);
354 }
355 if((ret = krb5_cc_get_principal(krb->context, krb->ccache, &krb->myprinc)) != 0)
356 {
357 message("krb5_cc_default reported an error: %s\n", error_message(ret));
358 return(1);
359 }
360 memset(&creds, 0, sizeof(creds));
361 creds.client = krb->myprinc;
362 creds.server = krb->sprinc;
363 if((ret = krb5_get_credentials(krb->context, 0, krb->ccache, &creds, &krb->servcreds)) != 0)
364 {
365 message("krb5_get_credentials reported an error: %s\n", error_message(ret));
366 return(1);
367 }
368 /* WTF is this checksum stuff?! The Krb docs don't say a word about it! */
369 cksum.data = sstrdup(dc_gethostname());
370 cksum.length = strlen(cksum.data);
371 if((ret = krb5_mk_req_extended(krb->context, &krb->authcon, AP_OPTS_MUTUAL_REQUIRED, &cksum, krb->servcreds, &krb->reqbuf)) != 0)
372 {
373 message("krb5_mk_req_extended reported an error: %s\n", error_message(ret));
374 return(1);
375 }
376 free(cksum.data);
377 krb->state = 0;
378 return(0);
379}
380
381static void release_krb5(struct logindata *data)
382{
383 struct krb5data *krb;
384
385 if((krb = data->mechdata) == NULL)
386 return;
387 if(krb->servcreds != NULL)
388 krb5_free_creds(krb->context, krb->servcreds);
389 if(krb->reqbuf.data != NULL)
390 free(krb->reqbuf.data);
391 if(krb->sprinc != NULL)
392 krb5_free_principal(krb->context, krb->sprinc);
393 if(krb->myprinc != NULL)
394 krb5_free_principal(krb->context, krb->myprinc);
395 if(krb->ccache != NULL)
396 krb5_cc_close(krb->context, krb->ccache);
397 if(krb->authcon != NULL)
398 krb5_auth_con_free(krb->context, krb->authcon);
399 if(krb->context != NULL)
400 krb5_free_context(krb->context);
401 free(krb);
402}
403#endif
404
405/* Arranged in order of priority */
406static struct authmech authmechs[] =
407{
408#ifdef HAVE_KRB5
409 {
410 .name = L"krb5",
411 .process = process_krb5,
412 .init = init_krb5,
413 .release = release_krb5
414 },
415#endif
416 {
417 .name = L"unix",
418 .process = process_authless,
419 .init = NULL,
420 .release = NULL
421 },
422 {
423 .name = L"authless",
424 .process = process_authless,
425 .init = NULL,
426 .release = NULL
427 },
428 {
429 .name = L"pam",
430 .process = process_pam,
431 .init = NULL,
432 .release = NULL
433 },
434 {
435 .name = NULL
436 }
437};
438
439static int builtinconv(int type, wchar_t *text, char **resp, void *data)
440{
441 char *buf, *pass;
442
443 if(isatty(0))
444 {
445 if((buf = icwcstombs(text, NULL)) == NULL)
446 return(1);
447 pass = getpass(buf);
448 free(buf);
449 *resp = sstrdup(pass);
450 memset(pass, 0, strlen(pass));
451 return(0);
452 }
453 return(1);
454}
455
456static int logincallback(struct dc_response *resp)
457{
458 int i;
459 struct dc_intresp *ires;
460 struct logindata *data;
461 int mech;
462 char *username;
463 struct passwd *pwent;
464 void *odata, *ndata;
465
466 data = resp->data;
467 if(!wcscmp(resp->cmdname, L"lsauth"))
468 {
469 if(resp->code == 201)
470 {
471 data->callback(DC_LOGIN_ERR_NOLOGIN, NULL, data->data);
472 freelogindata(data);
473 } else {
474 mech = -1;
475 while((ires = dc_interpret(resp)) != NULL)
476 {
477 if(!data->useauthless && !wcscmp(ires->argv[0].val.str, L"authless"))
478 {
479 dc_freeires(ires);
480 continue;
481 }
482 for(i = 0; authmechs[i].name != NULL; i++)
483 {
484 if(!wcscmp(authmechs[i].name, ires->argv[0].val.str) && ((i < mech) || (mech == -1)))
485 {
486 odata = data->mechdata;
487 data->mechdata = NULL;
488 if((authmechs[i].init != NULL) && authmechs[i].init(data))
489 {
490 if(authmechs[i].release != NULL)
491 authmechs[i].release(data);
492 data->mechdata = odata;
493 message("authentication mechanism %ls failed, trying further...\n", authmechs[i].name);
494 } else {
495 if((data->mech != NULL) && data->mech->release != NULL)
496 {
497 ndata = data->mechdata;
498 data->mechdata = odata;
499 data->mech->release(data);
500 data->mechdata = ndata;
501 }
502 mech = i;
503 data->mech = authmechs + i;
504 }
505 break;
506 }
507 }
508 dc_freeires(ires);
509 }
510 if(mech == -1)
511 {
512 data->callback(DC_LOGIN_ERR_NOLOGIN, NULL, data->data);
513 freelogindata(data);
514 } else {
515 if((username = data->username) == NULL)
516 {
517 if((pwent = getpwuid(getuid())) == NULL)
518 {
519 data->callback(DC_LOGIN_ERR_USER, NULL, data->data);
520 freelogindata(data);
521 return(1);
522 }
523 username = pwent->pw_name;
524 }
525 dc_queuecmd(logincallback, data, L"login", data->mech->name, L"%%s", username, NULL);
526 }
527 }
528 } else if(!wcscmp(resp->cmdname, L"login") || !wcscmp(resp->cmdname, L"pass")) {
529 data->mech->process(resp, data);
530 }
531 return(1);
532}
533
534void dc_loginasync(char *username, int useauthless, int (*conv)(int, wchar_t *, char **, void *), void (*callback)(int, wchar_t *, void *), void *udata)
535{
536 struct logindata *data;
537
538 data = smalloc(sizeof(*data));
539 if(conv == NULL)
540 conv = builtinconv;
541 data->conv = conv;
542 data->mech = NULL;
543 data->data = udata;
544 data->mechdata = NULL;
545 data->callback = callback;
546 data->useauthless = useauthless;
547 data->freeusername = 0;
548 if(username == NULL)
549 {
550 data->username = NULL;
551 } else {
552 data->username = sstrdup(username);
553 data->freeusername = 1;
554 }
555 dc_queuecmd(logincallback, data, L"lsauth", NULL);
556}
557
558static struct dc_fnetpeerdatum *finddatum(struct dc_fnetnode *fn, wchar_t *id)
559{
560 struct dc_fnetpeerdatum *datum;
561
562 for(datum = fn->peerdata; datum != NULL; datum = datum->next)
563 {
564 if(!wcscmp(datum->id, id))
565 break;
566 }
567 return(datum);
568}
569
570static struct dc_fnetpeerdatum *adddatum(struct dc_fnetnode *fn, wchar_t *id, int dt)
571{
572 struct dc_fnetpeerdatum *datum;
573
574 datum = smalloc(sizeof(*datum));
575 memset(datum, 0, sizeof(*datum));
576 datum->refcount = 0;
577 datum->dt = dt;
578 datum->id = swcsdup(id);
579 datum->prev = NULL;
580 datum->next = fn->peerdata;
581 if(fn->peerdata != NULL)
582 fn->peerdata->prev = datum;
583 fn->peerdata = datum;
584 return(datum);
585}
586
587static struct dc_fnetpeerdi *difindoradd(struct dc_fnetpeer *peer, struct dc_fnetpeerdatum *datum)
588{
589 int i;
590
591 for(i = 0; i < peer->dinum; i++)
592 {
593 if(peer->di[i].datum == datum)
594 return(&peer->di[i]);
595 }
596 peer->di = srealloc(peer->di, sizeof(struct dc_fnetpeerdi) * ++(peer->dinum));
597 memset(&peer->di[i], 0, sizeof(struct dc_fnetpeerdi));
598 peer->di[i].datum = datum;
599 datum->refcount++;
600 return(&peer->di[i]);
601}
602
603static void putdatum(struct dc_fnetnode *fn, struct dc_fnetpeerdatum *datum)
604{
605 if(--datum->refcount > 0)
606 return;
607 if(datum->next != NULL)
608 datum->next->prev = datum->prev;
609 if(datum->prev != NULL)
610 datum->prev->next = datum->next;
611 if(fn->peerdata == datum)
612 fn->peerdata = datum->next;
613 free(datum->id);
614 free(datum);
615}
616
617static void peersetnum(struct dc_fnetpeer *peer, wchar_t *id, int value)
618{
619 struct dc_fnetpeerdatum *datum;
620 struct dc_fnetpeerdi *di;
621
622 if((datum = finddatum(peer->fn, id)) == NULL)
623 datum = adddatum(peer->fn, id, DC_FNPD_INT);
624 di = difindoradd(peer, datum);
625 di->d.num = value;
626}
627
628static void peersetlnum(struct dc_fnetpeer *peer, wchar_t *id, long long value)
629{
630 struct dc_fnetpeerdatum *datum;
631 struct dc_fnetpeerdi *di;
632
633 if((datum = finddatum(peer->fn, id)) == NULL)
634 datum = adddatum(peer->fn, id, DC_FNPD_INT);
635 di = difindoradd(peer, datum);
636 di->d.lnum = value;
637}
638
639static void peersetstr(struct dc_fnetpeer *peer, wchar_t *id, wchar_t *value)
640{
641 struct dc_fnetpeerdatum *datum;
642 struct dc_fnetpeerdi *di;
643
644 if((datum = finddatum(peer->fn, id)) == NULL)
645 datum = adddatum(peer->fn, id, DC_FNPD_INT);
646 di = difindoradd(peer, datum);
647 if(di->d.str != NULL)
648 free(di->d.str);
649 di->d.str = swcsdup(value);
650}
651
652struct dc_fnetpeer *dc_fnetfindpeer(struct dc_fnetnode *fn, wchar_t *id)
653{
654 struct dc_fnetpeer *peer;
655
656 for(peer = fn->peers; peer != NULL; peer = peer->next)
657 {
658 if(!wcscmp(peer->id, id))
659 break;
660 }
661 return(peer);
662}
663
664static struct dc_fnetpeer *addpeer(struct dc_fnetnode *fn, wchar_t *id, wchar_t *nick)
665{
666 struct dc_fnetpeer *peer;
667
668 peer = smalloc(sizeof(*peer));
669 memset(peer, 0, sizeof(*peer));
670 peer->fn = fn;
671 peer->id = swcsdup(id);
672 peer->nick = swcsdup(nick);
673 peer->next = fn->peers;
674 peer->prev = NULL;
675 if(fn->peers != NULL)
676 fn->peers->prev = peer;
677 fn->peers = peer;
678 return(peer);
679}
680
681static void delpeer(struct dc_fnetpeer *peer)
682{
683 int i;
684
685 if(peer->next != NULL)
686 peer->next->prev = peer->prev;
687 if(peer->prev != NULL)
688 peer->prev->next = peer->next;
689 if(peer->fn->peers == peer)
690 peer->fn->peers = peer->next;
691 free(peer->id);
692 free(peer->nick);
693 for(i = 0; i < peer->dinum; i++)
694 {
695 if((peer->di[i].datum->dt == DC_FNPD_STR) && (peer->di[i].d.str != NULL))
696 free(peer->di[i].d.str);
697 putdatum(peer->fn, peer->di[i].datum);
698 }
699 free(peer);
700}
701
702static struct dc_fnetnode *newfn(void)
703{
704 struct dc_fnetnode *fn;
705
706 fn = smalloc(sizeof(*fn));
707 memset(fn, 0, sizeof(*fn));
708 fn->id = -1;
709 fn->name = NULL;
710 fn->fnet = NULL;
711 fn->state = fn->numusers = fn->found = 0;
712 fn->destroycb = NULL;
713 fn->udata = NULL;
714 fn->next = dc_fnetnodes;
715 fn->prev = NULL;
716 if(dc_fnetnodes != NULL)
717 dc_fnetnodes->prev = fn;
718 dc_fnetnodes = fn;
719 return(fn);
720}
721
722static void freefn(struct dc_fnetnode *fn)
723{
724 if(fn->next != NULL)
725 fn->next->prev = fn->prev;
726 if(fn->prev != NULL)
727 fn->prev->next = fn->next;
728 if(fn == dc_fnetnodes)
729 dc_fnetnodes = fn->next;
730 if(fn->destroycb != NULL)
731 fn->destroycb(fn);
732 while(fn->peers != NULL)
733 delpeer(fn->peers);
734 while(fn->peerdata != NULL)
735 {
736 fn->peerdata->refcount = 0;
737 putdatum(fn, fn->peerdata);
738 }
739 if(fn->name != NULL)
740 free(fn->name);
741 if(fn->fnet != NULL)
742 free(fn->fnet);
743 free(fn);
744}
745
746struct dc_fnetnode *dc_findfnetnode(int id)
747{
748 struct dc_fnetnode *fn;
749
750 for(fn = dc_fnetnodes; fn != NULL; fn = fn->next)
751 {
752 if(fn->id == id)
753 break;
754 }
755 return(fn);
756}
757
758static struct dc_transfer *newtransfer(void)
759{
760 struct dc_transfer *transfer;
761
762 transfer = smalloc(sizeof(*transfer));
763 memset(transfer, 0, sizeof(*transfer));
764 transfer->id = -1;
765 transfer->peerid = transfer->peernick = transfer->path = NULL;
766 transfer->state = DC_TRNS_WAITING;
767 transfer->dir = DC_TRNSD_UNKNOWN;
768 transfer->size = -1;
769 transfer->curpos = -1;
770 transfer->destroycb = NULL;
771 transfer->udata = NULL;
772 transfer->next = dc_transfers;
773 transfer->prev = NULL;
774 if(dc_transfers != NULL)
775 dc_transfers->prev = transfer;
776 dc_transfers = transfer;
777 return(transfer);
778}
779
780static void freetransfer(struct dc_transfer *transfer)
781{
782 if(transfer->next != NULL)
783 transfer->next->prev = transfer->prev;
784 if(transfer->prev != NULL)
785 transfer->prev->next = transfer->next;
786 if(transfer == dc_transfers)
787 dc_transfers = transfer->next;
788 if(transfer->destroycb != NULL)
789 transfer->destroycb(transfer);
790 if(transfer->peerid != NULL)
791 free(transfer->peerid);
792 if(transfer->peernick != NULL)
793 free(transfer->peernick);
794 if(transfer->path != NULL)
795 free(transfer->path);
796 free(transfer);
797}
798
799struct dc_transfer *dc_findtransfer(int id)
800{
801 struct dc_transfer *transfer;
802
803 for(transfer = dc_transfers; transfer != NULL; transfer = transfer->next)
804 {
805 if(transfer->id == id)
806 break;
807 }
808 return(transfer);
809}
810
811static int getfnlistcallback(struct dc_response *resp)
812{
813 struct dc_intresp *ires;
814 struct gencbdata *data;
815 struct dc_fnetnode *fn, *next;
816
817 data = resp->data;
818 if(resp->code == 200)
819 {
820 for(fn = dc_fnetnodes; fn != NULL; fn = fn->next)
821 fn->found = 0;
822 while((ires = dc_interpret(resp)) != NULL)
823 {
824 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
825 {
826 fn->found = 1;
827 if(fn->fnet != NULL)
828 free(fn->fnet);
829 fn->fnet = swcsdup(ires->argv[1].val.str);
830 if(fn->name != NULL)
831 free(fn->name);
832 fn->name = swcsdup(ires->argv[2].val.str);
833 fn->numusers = ires->argv[3].val.num;
834 fn->state = ires->argv[4].val.num;
835 if(fn->pubid != NULL)
836 free(fn->pubid);
837 fn->pubid = swcsdup(ires->argv[5].val.str);
838 } else {
839 fn = newfn();
840 fn->id = ires->argv[0].val.num;
841 fn->fnet = swcsdup(ires->argv[1].val.str);
842 fn->name = swcsdup(ires->argv[2].val.str);
843 fn->numusers = ires->argv[3].val.num;
844 fn->state = ires->argv[4].val.num;
845 fn->pubid = swcsdup(ires->argv[5].val.str);
846 fn->found = 1;
847 }
848 dc_freeires(ires);
849 }
850 for(fn = dc_fnetnodes; fn != NULL; fn = next)
851 {
852 next = fn->next;
853 if(!fn->found)
854 freefn(fn);
855 }
856 data->callback(200, data->data);
857 free(resp->data);
858 } else if(resp->code == 201) {
859 while(dc_fnetnodes != NULL)
860 freefn(dc_fnetnodes);
861 data->callback(201, data->data);
862 free(resp->data);
863 } else if(resp->code == 502) {
864 while(dc_fnetnodes != NULL)
865 freefn(dc_fnetnodes);
866 data->callback(502, data->data);
867 free(resp->data);
868 }
869 return(1);
870}
871
872static int gettrlistcallback(struct dc_response *resp)
873{
874 struct dc_intresp *ires;
875 struct gencbdata *data;
876 struct dc_transfer *transfer, *next;
877
878 data = resp->data;
879 if(resp->code == 200)
880 {
881 for(transfer = dc_transfers; transfer != NULL; transfer = transfer->next)
882 transfer->found = 0;
883 while((ires = dc_interpret(resp)) != NULL)
884 {
885 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
886 {
887 transfer->found = 1;
888 if((transfer->path == NULL) || wcscmp(transfer->path, ires->argv[5].val.str))
889 {
890 if(transfer->path != NULL)
891 free(transfer->path);
892 transfer->path = swcsdup(ires->argv[5].val.str);
893 }
894 if((transfer->peerid == NULL) || wcscmp(transfer->peerid, ires->argv[3].val.str))
895 {
896 if(transfer->peerid != NULL)
897 free(transfer->peerid);
898 transfer->peerid = swcsdup(ires->argv[3].val.str);
899 }
900 if((transfer->peernick == NULL) || wcscmp(transfer->peernick, ires->argv[4].val.str))
901 {
902 if(transfer->peernick != NULL)
903 free(transfer->peernick);
904 transfer->peernick = swcsdup(ires->argv[4].val.str);
905 }
906 transfer->dir = ires->argv[1].val.num;
907 transfer->state = ires->argv[2].val.num;
908 transfer->size = ires->argv[6].val.num;
909 transfer->curpos = ires->argv[7].val.num;
910 if(transfer->hash != NULL)
911 {
912 free(transfer->hash);
913 transfer->hash = NULL;
914 }
915 if(wcslen(ires->argv[8].val.str) > 0)
916 transfer->hash = swcsdup(ires->argv[8].val.str);
917 } else {
918 transfer = newtransfer();
919 transfer->id = ires->argv[0].val.num;
920 transfer->dir = ires->argv[1].val.num;
921 transfer->state = ires->argv[2].val.num;
922 transfer->peerid = swcsdup(ires->argv[3].val.str);
923 transfer->peernick = swcsdup(ires->argv[4].val.str);
924 transfer->path = swcsdup(ires->argv[5].val.str);
925 transfer->size = ires->argv[6].val.num;
926 transfer->curpos = ires->argv[7].val.num;
927 if(wcslen(ires->argv[8].val.str) > 0)
928 transfer->hash = swcsdup(ires->argv[8].val.str);
929 transfer->found = 1;
930 }
931 dc_freeires(ires);
932 }
933 for(transfer = dc_transfers; transfer != NULL; transfer = next)
934 {
935 next = transfer->next;
936 if(!transfer->found)
937 freetransfer(transfer);
938 }
939 data->callback(200, data->data);
940 free(data);
941 } else if(resp->code == 201) {
942 while(dc_transfers != NULL)
943 freetransfer(dc_transfers);
944 data->callback(201, data->data);
945 free(data);
946 } else if(resp->code == 502) {
947 while(dc_transfers != NULL)
948 freetransfer(dc_transfers);
949 data->callback(502, data->data);
950 free(data);
951 }
952 return(1);
953}
954
955static int sortlist1(const struct dc_respline *l1, const struct dc_respline *l2)
956{
957 return(wcscmp(l1->argv[1], l2->argv[1]));
958}
959
960static int sortlist2(const struct dc_fnetpeer **p1, const struct dc_fnetpeer **p2)
961{
962 return(wcscmp((*p1)->id, (*p2)->id));
963}
964
965static void fillpeer(struct dc_fnetpeer *peer, struct dc_respline *r)
966{
967 int i;
968 struct dc_fnetpeerdatum *datum;
969
970 for(i = 3; i < r->argc; i += 2)
971 {
972 if((datum = finddatum(peer->fn, r->argv[i])) != NULL)
973 {
974 switch(datum->dt)
975 {
976 case DC_FNPD_INT:
977 peersetnum(peer, datum->id, wcstol(r->argv[i + 1], NULL, 10));
978 break;
979 case DC_FNPD_LL:
980 peersetlnum(peer, datum->id, wcstoll(r->argv[i + 1], NULL, 10));
981 break;
982 case DC_FNPD_STR:
983 peersetstr(peer, datum->id, r->argv[i + 1]);
984 break;
985 }
986 }
987 }
988}
989
990static int getpeerlistcallback(struct dc_response *resp)
991{
992 int i, o, c;
993 struct dc_fnetnode *fn;
994 struct fnetcbdata *data;
995 struct dc_fnetpeer *peer;
996 struct dc_fnetpeer **plist;
997 size_t plistsize, plistdata;
998
999 data = resp->data;
1000 if((fn = dc_findfnetnode(data->fnid)) == NULL)
1001 {
1002 data->callback(NULL, -1, data->data);
1003 free(data);
1004 return(1);
1005 }
1006 if(resp->code == 200)
1007 {
1008 qsort(resp->rlines, resp->numlines, sizeof(*resp->rlines), (int (*)(const void *, const void *))sortlist1);
1009 plist = NULL;
1010 plistsize = plistdata = 0;
1011 for(i = 0, peer = fn->peers; peer != NULL; peer = peer->next)
1012 addtobuf(plist, peer);
1013 qsort(plist, plistdata, sizeof(*plist), (int (*)(const void *, const void *))sortlist2);
1014 i = o = 0;
1015 while(1)
1016 {
1017 if((i < resp->numlines) && (o < plistdata))
1018 {
1019 c = wcscmp(resp->rlines[i].argv[1], plist[o]->id);
1020 if(c < 0)
1021 {
1022 peer = addpeer(fn, resp->rlines[i].argv[1], resp->rlines[i].argv[2]);
1023 fillpeer(peer, resp->rlines + i);
1024 i++;
1025 } else if(c > 0) {
1026 delpeer(plist[o]);
1027 o++;
1028 } else {
1029 fillpeer(plist[o], resp->rlines + i);
1030 i++;
1031 o++;
1032 }
1033 } else if(i < resp->numlines) {
1034 peer = addpeer(fn, resp->rlines[i].argv[1], resp->rlines[i].argv[2]);
1035 fillpeer(peer, resp->rlines + i);
1036 i++;
1037 } else if(o < plistdata) {
1038 delpeer(plist[o]);
1039 o++;
1040 } else {
1041 break;
1042 }
1043 }
1044 free(plist);
1045 } else if(resp->code == 201) {
1046 while(fn->peers != NULL)
1047 delpeer(fn->peers);
1048 }
1049 data->callback(fn, resp->code, data->data);
1050 free(data);
1051 return(1);
1052}
1053
1054static int getpalistcallback(struct dc_response *resp)
1055{
1056 struct dc_fnetnode *fn;
1057 struct dc_intresp *ires;
1058 struct fnetcbdata *data;
1059
1060 data = resp->data;
1061 if((fn = dc_findfnetnode(data->fnid)) == NULL)
1062 {
1063 data->callback(NULL, -1, data->data);
1064 free(data);
1065 return(1);
1066 }
1067 if(resp->code == 200)
1068 {
1069 while((ires = dc_interpret(resp)) != NULL)
1070 {
1071 adddatum(fn, ires->argv[0].val.str, ires->argv[1].val.num);
1072 dc_freeires(ires);
1073 }
1074 dc_queuecmd(getpeerlistcallback, data, L"lspeers", L"%%i", fn->id, NULL);
1075 } else if(resp->code == 201) {
1076 dc_queuecmd(getpeerlistcallback, data, L"lspeers", L"%%i", fn->id, NULL);
1077 } else {
1078 data->callback(fn, resp->code, data->data);
1079 free(data);
1080 }
1081 return(1);
1082}
1083
1084void dc_getfnlistasync(void (*callback)(int, void *), void *udata)
1085{
1086 struct gencbdata *data;
1087
1088 data = smalloc(sizeof(*data));
1089 data->callback = callback;
1090 data->data = udata;
1091 dc_queuecmd(getfnlistcallback, data, L"lsnodes", NULL);
1092}
1093
1094void dc_gettrlistasync(void (*callback)(int, void *), void *udata)
1095{
1096 struct gencbdata *data;
1097
1098 data = smalloc(sizeof(*data));
1099 data->callback = callback;
1100 data->data = udata;
1101 dc_queuecmd(gettrlistcallback, data, L"lstrans", NULL);
1102}
1103
1104void dc_getpeerlistasync(struct dc_fnetnode *fn, void (*callback)(struct dc_fnetnode *, int, void *), void *udata)
1105{
1106 struct fnetcbdata *data;
1107
1108 data = smalloc(sizeof(*data));
1109 data->callback = callback;
1110 data->fnid = fn->id;
1111 data->data = udata;
1112 dc_queuecmd(getpalistcallback, data, L"lspa", L"%%i", fn->id, NULL);
1113}
1114
1115void dc_uimisc_disconnected(void)
1116{
1117 while(dc_fnetnodes != NULL)
1118 freefn(dc_fnetnodes);
1119 while(dc_transfers != NULL)
1120 freetransfer(dc_transfers);
1121}
1122
1123void dc_uimisc_handlenotify(struct dc_response *resp)
1124{
1125 int i;
1126 struct dc_fnetnode *fn;
1127 struct dc_transfer *transfer;
1128 struct dc_fnetpeer *peer;
1129 struct dc_intresp *ires;
1130
1131 if((ires = dc_interpret(resp)) == NULL)
1132 return;
1133 switch(resp->code)
1134 {
1135 case 601:
1136 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1137 fn->state = ires->argv[1].val.num;
1138 break;
1139 case 602:
1140 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1141 {
1142 if(fn->name != NULL)
1143 free(fn->name);
1144 fn->name = swcsdup(ires->argv[1].val.str);
1145 }
1146 break;
1147 case 603:
1148 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1149 freefn(fn);
1150 break;
1151 case 604:
1152 fn = newfn();
1153 fn->id = ires->argv[0].val.num;
1154 if(fn->fnet != NULL)
1155 free(fn->fnet);
1156 fn->fnet = swcsdup(ires->argv[1].val.str);
1157 fn->state = DC_FNN_STATE_SYN;
1158 fn->numusers = 0;
1159 break;
1160 case 605:
1161 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1162 fn->numusers = ires->argv[1].val.num;
1163 break;
1164 case 610:
1165 transfer = newtransfer();
1166 transfer->id = ires->argv[0].val.num;
1167 transfer->dir = ires->argv[1].val.num;
1168 if(transfer->dir == DC_TRNSD_UP)
1169 transfer->state = DC_TRNS_HS;
1170 transfer->peerid = swcsdup(ires->argv[2].val.str);
1171 if(ires->argv[3].val.str[0])
1172 transfer->path = swcsdup(ires->argv[3].val.str);
1173 break;
1174 case 611:
1175 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1176 transfer->state = ires->argv[1].val.num;
1177 break;
1178 case 612:
1179 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1180 {
1181 if(transfer->peernick != NULL)
1182 free(transfer->peernick);
1183 transfer->peernick = swcsdup(ires->argv[1].val.str);
1184 }
1185 break;
1186 case 613:
1187 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1188 transfer->size = ires->argv[1].val.num;
1189 break;
1190 case 614:
1191 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1192 {
1193 transfer->error = ires->argv[1].val.num;
1194 time(&transfer->errortime);
1195 }
1196 break;
1197 case 615:
1198 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1199 transfer->curpos = ires->argv[1].val.num;
1200 break;
1201 case 616:
1202 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1203 {
1204 if(transfer->path != NULL)
1205 free(transfer->path);
1206 transfer->path = swcsdup(ires->argv[1].val.str);
1207 }
1208 break;
1209 case 617:
1210 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1211 freetransfer(transfer);
1212 break;
1213 case 618:
1214 if((transfer = dc_findtransfer(ires->argv[0].val.num)) != NULL)
1215 {
1216 if(transfer->hash != NULL)
1217 {
1218 free(transfer->hash);
1219 transfer->hash = NULL;
1220 }
1221 if(wcslen(ires->argv[1].val.str) > 0)
1222 transfer->hash = swcsdup(ires->argv[1].val.str);
1223 }
1224 break;
1225 case 630:
1226 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1227 {
1228 if((peer = dc_fnetfindpeer(fn, ires->argv[1].val.str)) == NULL)
1229 {
1230 peer = addpeer(fn, ires->argv[1].val.str, ires->argv[2].val.str);
1231 if(fn->newpeercb != NULL)
1232 fn->newpeercb(peer);
1233 }
1234 }
1235 break;
1236 case 631:
1237 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1238 {
1239 if((peer = dc_fnetfindpeer(fn, ires->argv[1].val.str)) != NULL)
1240 {
1241 if(fn->delpeercb != NULL)
1242 fn->delpeercb(peer);
1243 delpeer(peer);
1244 }
1245 }
1246 break;
1247 case 632:
1248 if((fn = dc_findfnetnode(ires->argv[0].val.num)) != NULL)
1249 {
1250 if((peer = dc_fnetfindpeer(fn, ires->argv[1].val.str)) != NULL)
1251 {
1252 if(wcscmp(ires->argv[2].val.str, peer->nick))
1253 {
1254 free(peer->nick);
1255 peer->nick = swcsdup(ires->argv[2].val.str);
1256 }
1257 for(i = 4; i < resp->rlines[0].argc; i += 3)
1258 {
1259 switch(wcstol(resp->rlines[0].argv[i + 1], NULL, 10))
1260 {
1261 case DC_FNPD_INT:
1262 peersetnum(peer, resp->rlines[0].argv[i], wcstol(resp->rlines[0].argv[i + 2], NULL, 10));
1263 break;
1264 case DC_FNPD_LL:
1265 peersetlnum(peer, resp->rlines[0].argv[i], wcstoll(resp->rlines[0].argv[i + 2], NULL, 10));
1266 break;
1267 case DC_FNPD_STR:
1268 peersetstr(peer, resp->rlines[0].argv[i], resp->rlines[0].argv[i + 2]);
1269 break;
1270 }
1271 }
1272 if(fn->chpeercb != NULL)
1273 fn->chpeercb(peer);
1274 }
1275 }
1276 break;
1277 default:
1278 break;
1279 }
1280 dc_freeires(ires);
1281 resp->curline = 0;
1282}
1283
1284/* Note the backspace handling - it's not as elegant as possible, but
1285 * it helps avoid the "box-of-toothpicks" syndrome when writing search
1286 * expressions manually. */
1287wchar_t **dc_lexsexpr(wchar_t *sexpr)
1288{
1289 wchar_t **ret;
1290 wchar_t *buf;
1291 size_t retsize, retdata, bufsize, bufdata;
1292 int state;
1293
1294 ret = NULL;
1295 buf = NULL;
1296 retsize = retdata = bufsize = bufdata = 0;
1297 state = 0;
1298 while(*sexpr != L'\0')
1299 {
1300 switch(state)
1301 {
1302 case 0:
1303 if(!iswspace(*sexpr))
1304 state = 1;
1305 else
1306 sexpr++;
1307 break;
1308 case 1:
1309 if(iswspace(*sexpr))
1310 {
1311 if(buf != NULL)
1312 {
1313 addtobuf(buf, L'\0');
1314 addtobuf(ret, buf);
1315 buf = NULL;
1316 bufsize = bufdata = 0;
1317 }
1318 state = 0;
1319 } else if((*sexpr == L'(') ||
1320 (*sexpr == L')') ||
1321 (*sexpr == L'&') ||
1322 (*sexpr == L'|') ||
1323 (*sexpr == L'!')) {
1324 if(buf != NULL)
1325 {
1326 addtobuf(buf, L'\0');
1327 addtobuf(ret, buf);
1328 buf = NULL;
1329 bufsize = bufdata = 0;
1330 }
1331 addtobuf(buf, *sexpr);
1332 addtobuf(buf, L'\0');
1333 addtobuf(ret, buf);
1334 buf = NULL;
1335 bufsize = bufdata = 0;
1336 sexpr++;
1337 } else if(*sexpr == L'\"') {
1338 sexpr++;
1339 state = 2;
1340 } else if(*sexpr == L'\\') {
1341 sexpr++;
1342 if(*sexpr == L'\0')
1343 {
1344 addtobuf(buf, *sexpr);
1345 } else if((*sexpr == L'\\') || (*sexpr == L'\"')) {
1346 addtobuf(buf, *sexpr);
1347 sexpr++;
1348 } else {
1349 addtobuf(buf, L'\\');
1350 addtobuf(buf, *sexpr);
1351 sexpr++;
1352 }
1353 } else {
1354 addtobuf(buf, *(sexpr++));
1355 }
1356 break;
1357 case 2:
1358 if(*sexpr == L'\\')
1359 {
1360 sexpr++;
1361 if(*sexpr == L'\0')
1362 {
1363 addtobuf(buf, *sexpr);
1364 } else if((*sexpr == L'\\') || (*sexpr == L'\"')) {
1365 addtobuf(buf, *sexpr);
1366 sexpr++;
1367 } else {
1368 addtobuf(buf, L'\\');
1369 addtobuf(buf, *sexpr);
1370 sexpr++;
1371 }
1372 } else if(*sexpr == L'\"') {
1373 state = 1;
1374 sexpr++;
1375 } else {
1376 addtobuf(buf, *(sexpr++));
1377 }
1378 break;
1379 }
1380 }
1381 if(buf != NULL)
1382 {
1383 addtobuf(buf, L'\0');
1384 addtobuf(ret, buf);
1385 }
1386 addtobuf(ret, NULL);
1387 return(ret);
1388}
1389
1390void dc_freewcsarr(wchar_t **arr)
1391{
1392 wchar_t **buf;
1393
1394 if(arr == NULL)
1395 return;
1396 for(buf = arr; *buf != NULL; buf++)
1397 free(*buf);
1398 free(arr);
1399}
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