source: functions.c @ 5b54595

release-1.8
Last change on this file since 5b54595 was 5b54595, checked in by David Benjamin <davidben@mit.edu>, 12 years ago
zephyr: Use field iterator interface to avoid quadratic loops Signed-off-by: Anders Kaseorg <andersk@mit.edu> [davidben@mit.edu: cherry-picked onto release-1.8 Conflicts: functions.c ]
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File size: 97.1 KB
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1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <signal.h>
5#include <netinet/in.h>
6#include <string.h>
7#include <time.h>
8#include <sys/types.h>
9#include <sys/stat.h>
10#include <sys/wait.h>
11#include <errno.h>
12#include <signal.h>
13#include "owl.h"
14#include "filterproc.h"
15
16CALLER_OWN char *owl_function_command(const char *cmdbuff)
17{
18  owl_function_debugmsg("executing command: %s", cmdbuff);
19  return owl_cmddict_execute(owl_global_get_cmddict(&g), 
20                             owl_global_get_context(&g), cmdbuff);
21}
22
23CALLER_OWN char *owl_function_command_argv(const char *const *argv, int argc)
24{
25  return owl_cmddict_execute_argv(owl_global_get_cmddict(&g),
26                                  owl_global_get_context(&g),
27                                  argv, argc);
28}
29
30void owl_function_command_norv(const char *cmdbuff)
31{
32  char *rv;
33  rv=owl_function_command(cmdbuff);
34  g_free(rv);
35}
36
37void owl_function_command_alias(const char *alias_from, const char *alias_to)
38{
39  owl_cmddict_add_alias(owl_global_get_cmddict(&g), alias_from, alias_to);
40}
41
42const owl_cmd *owl_function_get_cmd(const char *name)
43{
44  return owl_cmddict_find(owl_global_get_cmddict(&g), name);
45}
46
47void owl_function_show_commands(void)
48{
49  GPtrArray *l;
50  owl_fmtext fm;
51
52  owl_fmtext_init_null(&fm);
53  owl_fmtext_append_bold(&fm, "Commands:  ");
54  owl_fmtext_append_normal(&fm, "(use 'show command <name>' for details)\n");
55  l = owl_cmddict_get_names(owl_global_get_cmddict(&g));
56  owl_fmtext_append_list(&fm, l, "\n", owl_function_cmd_describe);
57  owl_fmtext_append_normal(&fm, "\n");
58  owl_function_popless_fmtext(&fm);
59  owl_ptr_array_free(l, g_free);
60  owl_fmtext_cleanup(&fm);
61}
62
63void owl_function_show_view(const char *viewname)
64{
65  const owl_view *v;
66  owl_fmtext fm;
67
68  /* we only have the one view right now */
69  v=owl_global_get_current_view(&g);
70  if (viewname && strcmp(viewname, owl_view_get_name(v))) {
71    owl_function_error("No view named '%s'", viewname);
72    return;
73  }
74
75  owl_fmtext_init_null(&fm);
76  owl_view_to_fmtext(v, &fm);
77  owl_function_popless_fmtext(&fm);
78  owl_fmtext_cleanup(&fm);
79}
80
81void owl_function_show_styles(void) {
82  GPtrArray *l;
83  owl_fmtext fm;
84
85  owl_fmtext_init_null(&fm);
86  owl_fmtext_append_bold(&fm, "Styles:\n");
87  l = owl_global_get_style_names(&g);
88  owl_fmtext_append_list(&fm, l, "\n", owl_function_style_describe);
89  owl_fmtext_append_normal(&fm, "\n");
90  owl_function_popless_fmtext(&fm);
91  owl_ptr_array_free(l, g_free);
92  owl_fmtext_cleanup(&fm);
93}
94
95CALLER_OWN char *owl_function_style_describe(const char *name)
96{
97  const char *desc;
98  char *s;
99  const owl_style *style;
100  style = owl_global_get_style_by_name(&g, name);
101  if (style) {
102    desc = owl_style_get_description(style);
103  } else {
104    desc = "???";
105  }
106  s = g_strdup_printf("%-20s - %s%s", name,
107                      0 == owl_style_validate(style) ? "" : "[INVALID] ",
108                      desc);
109  return s;
110}
111
112CALLER_OWN char *owl_function_cmd_describe(const char *name)
113{
114  const owl_cmd *cmd = owl_cmddict_find(owl_global_get_cmddict(&g), name);
115  if (cmd) return owl_cmd_describe(cmd);
116  else return(NULL);
117}
118
119void owl_function_show_command(const char *name)
120{
121  owl_function_help_for_command(name);
122}
123
124void owl_function_show_license(void)
125{
126  const char *text;
127
128  text=""
129    "BarnOwl version " OWL_VERSION_STRING "\n"
130    "Copyright (c) 2006-2011 The BarnOwl Developers. All rights reserved.\n"
131    "Copyright (c) 2004 James Kretchmar. All rights reserved.\n"
132    "\n"
133    "Redistribution and use in source and binary forms, with or without\n"
134    "modification, are permitted provided that the following conditions are\n"
135    "met:\n"
136    "\n"
137    "   * Redistributions of source code must retain the above copyright\n"
138    "     notice, this list of conditions and the following disclaimer.\n"
139    "\n"
140    "   * Redistributions in binary form must reproduce the above copyright\n"
141    "     notice, this list of conditions and the following disclaimer in\n"
142    "     the documentation and/or other materials provided with the\n"
143    "     distribution.\n"
144    "\n"
145    "   * Redistributions in any form must be accompanied by information on\n"
146    "     how to obtain complete source code for the BarnOwl software and any\n"
147    "     accompanying software that uses the BarnOwl software. The source code\n"
148    "     must either be included in the distribution or be available for no\n"
149    "     more than the cost of distribution plus a nominal fee, and must be\n"
150    "     freely redistributable under reasonable conditions. For an\n"
151    "     executable file, complete source code means the source code for\n"
152    "     all modules it contains. It does not include source code for\n"
153    "     modules or files that typically accompany the major components of\n"
154    "     the operating system on which the executable file runs.\n"
155    "\n"
156    "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n"
157    "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
158    "WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR\n"
159    "NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE\n"
160    "LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n"
161    "CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n"
162    "SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n"
163    "BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n"
164    "WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n"
165    "OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n"
166    "IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n";
167  owl_function_popless_text(text);
168}
169
170void owl_function_show_quickstart(void)
171{
172    const char *message =
173    "Move between messages with the arrow keys, and press 'r' to reply.\n"
174    "For more info, press 'h' or visit http://barnowl.mit.edu/\n\n"
175#ifdef HAVE_LIBZEPHYR
176    "@b(Zephyr:)\n"
177    "To send a message to a user, type ':zwrite @b(username)'. You can also\n"
178    "press 'z' and then type the username. To subscribe to a class, type\n"
179    "':sub @b(class)', and then type ':zwrite -c @b(class)' to send.\n\n"
180#endif
181    "@b(AIM:)\n"
182    "Log in to AIM with ':aimlogin @b(screenname)'. Use ':aimwrite @b(screenname)',\n"
183    "or 'a' and then the screen name, to send someone a message.\n\n"
184    ;
185
186    if (owl_perlconfig_is_function("BarnOwl::Hooks::_get_quickstart")) {
187        char *perlquickstart = owl_perlconfig_execute("BarnOwl::Hooks::_get_quickstart()");
188        if (perlquickstart) {
189            char *result = g_strdup_printf("%s%s", message, perlquickstart);
190            owl_function_adminmsg("BarnOwl Quickstart", result);
191            g_free(result);
192            g_free(perlquickstart);
193            return;
194        }
195    }
196    owl_function_adminmsg("BarnOwl Quickstart", message);
197}
198
199
200/* Create an admin message, append it to the global list of messages
201 * and redisplay if necessary.
202 */
203void owl_function_adminmsg(const char *header, const char *body)
204{
205  owl_message *m;
206
207  m=g_new(owl_message, 1);
208  owl_message_create_admin(m, header, body);
209 
210  /* add it to the global list and current view */
211  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
212  owl_view_consider_message(owl_global_get_current_view(&g), m);
213
214  /* do followlast if necessary */
215  if (owl_global_should_followlast(&g)) owl_function_lastmsg_noredisplay();
216
217  /* redisplay etc. */
218  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
219}
220
221/* Queues outgoing zephyrs; if z sends to n people, queue n messages
222 * (except in case of cc). If there are no recipients queues 1
223 * message.
224 */
225void owl_function_add_outgoing_zephyrs(const owl_zwrite *z)
226{
227  if (z->cc || owl_zwrite_get_numrecips(z) == 0) {
228    /* create the message */
229    owl_message *m = g_new(owl_message, 1);
230    owl_message_create_from_zwrite(m, z, owl_zwrite_get_message(z), 0);
231
232    owl_global_messagequeue_addmsg(&g, m);
233  } else {
234    int i;
235    for (i = 0; i < owl_zwrite_get_numrecips(z); i++) {
236      /* create the message */
237      owl_message *m = g_new(owl_message, 1);
238      owl_message_create_from_zwrite(m, z, owl_zwrite_get_message(z), i);
239
240      owl_global_messagequeue_addmsg(&g, m);
241    }
242  }
243}
244
245/* Create an outgoing AIM message, returns a pointer to the created
246 * message or NULL if we're not logged into AIM (and thus unable to
247 * create the message).  Does not put it on the global queue.  Use
248 * owl_global_messagequeue_addmsg() for that.
249 */
250CALLER_OWN owl_message *owl_function_make_outgoing_aim(const char *body, const char *to)
251{
252  owl_message *m;
253
254  /* error if we're not logged into aim */
255  if (!owl_global_is_aimloggedin(&g)) return(NULL);
256 
257  m=g_new(owl_message, 1);
258  owl_message_create_aim(m,
259                         owl_global_get_aim_screenname(&g),
260                         to,
261                         body,
262                         OWL_MESSAGE_DIRECTION_OUT,
263                         0);
264  return(m);
265}
266
267/* Create an outgoing loopback message and return a pointer to it.
268 * Does not append it to the global queue, use
269 * owl_global_messagequeue_addmsg() for that.
270 */
271CALLER_OWN owl_message *owl_function_make_outgoing_loopback(const char *body)
272{
273  owl_message *m;
274
275  /* create the message */
276  m=g_new(owl_message, 1);
277  owl_message_create_loopback(m, body);
278  owl_message_set_direction_out(m);
279
280  return(m);
281}
282
283void owl_function_start_edit_win(const char *line, void (*callback)(owl_editwin *), void *data, void (*cleanup)(void *))
284{
285  owl_editwin *e;
286  owl_context *ctx;
287  char *s;
288
289  /* create and setup the editwin */
290  e = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_MULTILINE,
291                                   owl_global_get_msg_history(&g));
292  owl_editwin_set_dotsend(e);
293  s = g_strdup_printf("----> %s\n", line);
294  owl_editwin_set_locktext(e, s);
295  g_free(s);
296
297  owl_editwin_set_cbdata(e, data, cleanup);
298  owl_editwin_set_callback(e, callback);
299  ctx = owl_editcontext_new(OWL_CTX_EDITMULTI, e, "editmulti",
300                            owl_global_deactivate_editcontext, &g);
301  owl_global_push_context_obj(&g, ctx);
302
303}
304
305static void owl_function_write_setup(const char *noun)
306{
307
308  if (!owl_global_get_lockout_ctrld(&g))
309    owl_function_makemsg("Type your %s below.  "
310                         "End with ^D or a dot on a line by itself."
311                         "  ^C will quit.", noun);
312  else
313    owl_function_makemsg("Type your %s below.  "
314                         "End with a dot on a line by itself.  ^C will quit.",
315                         noun);
316}
317
318void owl_function_zwrite_setup(owl_zwrite *z)
319{
320  /* send a ping if necessary */
321  if (owl_global_is_txping(&g)) {
322    owl_zwrite_send_ping(z);
323  }
324
325
326  owl_function_write_setup("zephyr");
327  owl_function_start_edit_win(z->zwriteline,
328                              &owl_callback_zwrite,
329                              z, (void(*)(void*))owl_zwrite_delete);
330}
331
332void owl_function_aimwrite_setup(const char *to)
333{
334  /* TODO: We probably actually want an owl_aimwrite object like
335   * owl_zwrite. */
336  char *line = g_strdup_printf("aimwrite %s", to);
337  owl_function_write_setup("message");
338  owl_function_start_edit_win(line,
339                              &owl_callback_aimwrite,
340                              g_strdup(to),
341                              g_free);
342  g_free(line);
343}
344
345void owl_function_loopwrite_setup(void)
346{
347  owl_function_write_setup("message");
348  owl_function_start_edit_win("loopwrite",
349                              &owl_callback_loopwrite,
350                              NULL, NULL);
351}
352
353void owl_callback_zwrite(owl_editwin *e) {
354  owl_zwrite *z = owl_editwin_get_cbdata(e);
355  owl_function_zwrite(z, owl_editwin_get_text(e));
356}
357
358/* send, log and display outgoing zephyrs.  If 'msg' is NULL the
359 * message is expected to be set from the zwrite line itself
360 */
361#ifdef HAVE_LIBZEPHYR
362void owl_function_zwrite(owl_zwrite *z, const char *msg)
363{
364  int ret;
365
366  if(strcmp(z->cmd, "zcrypt") == 0) {
367    owl_function_zcrypt(z, msg);
368    return;
369  }
370
371  /* create the zwrite and send the message */
372  owl_zwrite_populate_zsig(z);
373  if (msg) {
374    owl_zwrite_set_message(z, msg);
375  }
376  ret = owl_zwrite_send_message(z);
377  if (ret != 0) {
378    owl_function_makemsg("Error sending zephyr: %s", error_message(ret));
379    return;
380  }
381  owl_function_makemsg("Waiting for ack...");
382
383  /* If it's personal */
384  if (owl_zwrite_is_personal(z)) {
385    /* create the outgoing message */
386    owl_function_add_outgoing_zephyrs(z);
387  }
388}
389#else
390void owl_function_zwrite(owl_zwrite *z, const char *msg) {
391}
392#endif
393
394/* send, log and display outgoing zcrypt zephyrs.  If 'msg' is NULL
395 * the message is expected to be set from the zwrite line itself
396 */
397void owl_function_zcrypt(owl_zwrite *z, const char *msg)
398{
399  char *cryptmsg;
400  const char *argv[7];
401  char *zcrypt;
402  int rv, status;
403  char *old_msg;
404
405  /* create the zwrite and send the message */
406  owl_zwrite_populate_zsig(z);
407  if (msg) {
408    owl_zwrite_set_message(z, msg);
409  }
410  old_msg = g_strdup(owl_zwrite_get_message(z));
411
412  zcrypt = g_build_filename(owl_get_bindir(), "zcrypt", NULL);
413  argv[0] = zcrypt;
414  argv[1] = "-E";
415  argv[2] = "-c"; argv[3] = owl_zwrite_get_class(z);
416  argv[4] = "-i"; argv[5] = owl_zwrite_get_instance(z);
417  argv[6] = NULL;
418
419  rv = call_filter(argv, owl_zwrite_get_message(z), &cryptmsg, &status);
420
421  g_free(zcrypt);
422
423  if (rv || status) {
424    g_free(cryptmsg);
425    g_free(old_msg);
426    owl_function_error("Error in zcrypt, possibly no key found.  Message not sent.");
427    owl_function_beep();
428    return;
429  }
430
431  owl_zwrite_set_message_raw(z, cryptmsg);
432  owl_zwrite_set_opcode(z, "crypt");
433
434  owl_zwrite_send_message(z);
435  owl_function_makemsg("Waiting for ack...");
436
437  /* If it's personal */
438  if (owl_zwrite_is_personal(z)) {
439    /* Create the outgoing message. Restore the un-crypted message for display. */
440    owl_zwrite_set_message_raw(z, old_msg);
441    owl_function_add_outgoing_zephyrs(z);
442  }
443
444  /* free the zwrite */
445  g_free(cryptmsg);
446}
447
448void owl_callback_aimwrite(owl_editwin *e) {
449  char *to = owl_editwin_get_cbdata(e);
450  owl_function_aimwrite(to, owl_editwin_get_text(e), true);
451}
452
453void owl_function_aimwrite(const char *to, const char *msg, bool unwrap)
454{
455  int ret;
456  char *format_msg;
457  owl_message *m;
458
459  /* make a formatted copy of the message */
460  format_msg = g_strdup(msg);
461  if (unwrap)
462    owl_text_wordunwrap(format_msg);
463 
464  /* send the message */
465  ret=owl_aim_send_im(to, format_msg);
466  if (!ret) {
467    owl_function_makemsg("AIM message sent.");
468  } else {
469    owl_function_error("Could not send AIM message.");
470  }
471
472  /* create the outgoing message */
473  m=owl_function_make_outgoing_aim(msg, to);
474
475  if (m) {
476    owl_global_messagequeue_addmsg(&g, m);
477  } else {
478    owl_function_error("Could not create outgoing AIM message");
479  }
480
481  g_free(format_msg);
482}
483
484void owl_function_send_aimawymsg(const char *to, const char *msg)
485{
486  int ret;
487  char *format_msg;
488  owl_message *m;
489
490  /* make a formatted copy of the message */
491  format_msg=g_strdup(msg);
492  owl_text_wordunwrap(format_msg);
493 
494  /* send the message */
495  ret=owl_aim_send_awaymsg(to, format_msg);
496  if (!ret) {
497    /* owl_function_makemsg("AIM message sent."); */
498  } else {
499    owl_function_error("Could not send AIM message.");
500  }
501
502  /* create the message */
503  m=owl_function_make_outgoing_aim(msg, to);
504  if (m) {
505    owl_global_messagequeue_addmsg(&g, m);
506  } else {
507    owl_function_error("Could not create AIM message");
508  }
509  g_free(format_msg);
510}
511
512void owl_callback_loopwrite(owl_editwin *e) {
513  owl_function_loopwrite(owl_editwin_get_text(e));
514}
515
516void owl_function_loopwrite(const char *msg)
517{
518  owl_message *min, *mout;
519
520  /* create a message and put it on the message queue.  This simulates
521   * an incoming message */
522  min=g_new(owl_message, 1);
523  mout=owl_function_make_outgoing_loopback(msg);
524
525  if (owl_global_is_displayoutgoing(&g)) {
526    owl_global_messagequeue_addmsg(&g, mout);
527  } else {
528    owl_message_delete(mout);
529  }
530
531  owl_message_create_loopback(min, msg);
532  owl_message_set_direction_in(min);
533  owl_global_messagequeue_addmsg(&g, min);
534
535  /* fake a makemsg */
536  owl_function_makemsg("loopback message sent");
537}
538
539/* If filter is non-null, looks for the next message matching
540 * that filter.  If skip_deleted, skips any deleted messages.
541 * If last_if_none, will stop at the last message in the view
542 * if no matching messages are found.  */
543void owl_function_nextmsg_full(const char *filter, int skip_deleted, int last_if_none)
544{
545  int curmsg, i, viewsize, found;
546  const owl_view *v;
547  const owl_filter *f = NULL;
548  const owl_message *m;
549
550  v=owl_global_get_current_view(&g);
551
552  if (filter) {
553    f=owl_global_get_filter(&g, filter);
554    if (!f) {
555      owl_function_error("No %s filter defined", filter);
556      return;
557    }
558  }
559
560  curmsg=owl_global_get_curmsg(&g);
561  viewsize=owl_view_get_size(v);
562  found=0;
563
564  /* just check to make sure we're in bounds... */
565  if (curmsg>viewsize-1) curmsg=viewsize-1;
566  if (curmsg<0) curmsg=0;
567
568  for (i=curmsg+1; i<viewsize; i++) {
569    m=owl_view_get_element(v, i);
570    if (skip_deleted && owl_message_is_delete(m)) continue;
571    if (f && !owl_filter_message_match(f, m)) continue;
572    found = 1;
573    break;
574  }
575
576  if (i>owl_view_get_size(v)-1) i=owl_view_get_size(v)-1;
577  if (i<0) i=0;
578
579  if (!found) {
580    owl_function_makemsg("already at last%s message%s%s%s",
581                         skip_deleted?" non-deleted":"",
582                         filter?" in ":"", filter?filter:"",
583                         owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g)) ?
584                         ", press Enter to scroll" : "");
585    /* if (!skip_deleted) owl_function_beep(); */
586  }
587
588  if (last_if_none || found) {
589    owl_global_set_curmsg(&g, i);
590    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
591    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
592    owl_global_set_direction_downwards(&g);
593  }
594}
595
596void owl_function_prevmsg_full(const char *filter, int skip_deleted, int first_if_none)
597{
598  int curmsg, i, found;
599  const owl_view *v;
600  const owl_filter *f = NULL;
601  const owl_message *m;
602
603  v=owl_global_get_current_view(&g);
604
605  if (filter) {
606    f=owl_global_get_filter(&g, filter);
607    if (!f) {
608      owl_function_error("No %s filter defined", filter);
609      return;
610    }
611  }
612
613  curmsg=owl_global_get_curmsg(&g);
614  found=0;
615
616  /* just check to make sure we're in bounds... */
617  if (curmsg<0) curmsg=0;
618
619  for (i=curmsg-1; i>=0; i--) {
620    m=owl_view_get_element(v, i);
621    if (skip_deleted && owl_message_is_delete(m)) continue;
622    if (f && !owl_filter_message_match(f, m)) continue;
623    found = 1;
624    break;
625  }
626
627  if (i<0) i=0;
628
629  if (!found) {
630    owl_function_makemsg("already at first%s message%s%s",
631                         skip_deleted?" non-deleted":"",
632                         filter?" in ":"", filter?filter:"");
633    /* if (!skip_deleted) owl_function_beep(); */
634  }
635
636  if (first_if_none || found) {
637    owl_global_set_curmsg(&g, i);
638    owl_function_calculate_topmsg(OWL_DIRECTION_UPWARDS);
639    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
640    owl_global_set_direction_upwards(&g);
641  }
642}
643
644void owl_function_nextmsg(void)
645{
646  owl_function_nextmsg_full(NULL, 0, 1);
647}
648
649void owl_function_prevmsg(void)
650{
651  owl_function_prevmsg_full(NULL, 0, 1);
652}
653
654void owl_function_nextmsg_notdeleted(void)
655{
656  owl_function_nextmsg_full(NULL, 1, 1);
657}
658
659void owl_function_prevmsg_notdeleted(void)
660{
661  owl_function_prevmsg_full(NULL, 1, 1);
662}
663
664void owl_function_delete_and_expunge_message(int n)
665{
666  owl_messagelist *ml = owl_global_get_msglist(&g);
667  owl_view *v = owl_global_get_current_view(&g);
668  int lastmsgid = owl_function_get_curmsg_id(v);
669
670  /* delete and expunge the message */
671  owl_messagelist_delete_and_expunge_element(ml, n);
672
673  owl_function_redisplay_to_nearest(lastmsgid, v);
674}
675
676void owl_function_delete_and_expunge_cur(bool exclaim_success)
677{
678  int curmsg;
679  const owl_view *v = owl_global_get_current_view(&g);
680
681  /* bail if there's no current message */
682  if (owl_view_get_size(v) < 1) {
683    owl_function_error("No current message to delete");
684    return;
685  }
686
687  /* delete the current message */
688  curmsg = owl_global_get_curmsg(&g);
689  owl_function_delete_and_expunge_message(curmsg);
690  if (exclaim_success)
691    owl_function_makemsg("Message deleted and expunged");
692}
693
694/* if move_after is 1, moves after the delete */
695void owl_function_deletecur(int move_after)
696{
697  int curmsg;
698  owl_view *v;
699
700  v=owl_global_get_current_view(&g);
701
702  /* bail if there's no current message */
703  if (owl_view_get_size(v) < 1) {
704    owl_function_error("No current message to delete");
705    return;
706  }
707
708  /* mark the message for deletion */
709  curmsg=owl_global_get_curmsg(&g);
710  owl_view_delete_element(v, curmsg);
711
712  if (move_after) {
713    /* move the poiner in the appropriate direction
714     * to the next undeleted msg */
715    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
716      owl_function_prevmsg_notdeleted();
717    } else {
718      owl_function_nextmsg_notdeleted();
719    }
720  }
721}
722
723void owl_function_undeletecur(int move_after)
724{
725  int curmsg;
726  owl_view *v;
727
728  v=owl_global_get_current_view(&g);
729 
730  if (owl_view_get_size(v) < 1) {
731    owl_function_error("No current message to undelete");
732    return;
733  }
734  curmsg=owl_global_get_curmsg(&g);
735
736  owl_view_undelete_element(v, curmsg);
737
738  if (move_after) {
739    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
740      if (curmsg>0) {
741        owl_function_prevmsg();
742      } else {
743        owl_function_nextmsg();
744      }
745    } else {
746      owl_function_nextmsg();
747    }
748  }
749
750  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
751}
752
753/* returns the current message id, if it exists.  Otherwise returns
754 * -1 if we are past the end of the message list, and 0 otherwise. */
755int owl_function_get_curmsg_id(const owl_view *v)
756{
757  int curmsg = owl_global_get_curmsg(&g);
758  const owl_message *m = owl_view_get_element(v, curmsg);
759  if (m)
760    return owl_message_get_id(m);
761  if (curmsg > 0) /* past the end of the message list (probably) */
762    return -1;
763  return 0;
764}
765
766/* redisplays the view to the nearest message to the id given.
767 * if msgid < 0, redisplay to past the end of the message list */
768void owl_function_redisplay_to_nearest(int msgid, owl_view *v)
769{
770  int curmsg;
771  /* update all views (we only have one right now) */
772  owl_view_recalculate(v);
773
774  /* find where the new position should be */
775  if (msgid < 0) {
776    /* If already at the end, blank the screen and move curmsg
777     * past the end of the messages. */
778    curmsg = owl_view_get_size(v);
779    owl_global_set_topmsg(&g, curmsg);
780    owl_global_set_curmsg(&g, curmsg);
781  } else {
782    curmsg = owl_view_get_nearest_to_msgid(v, msgid);
783    if (curmsg > owl_view_get_size(v) - 1)
784      curmsg = owl_view_get_size(v) - 1;
785    if (curmsg < 0)
786      curmsg = 0;
787    owl_global_set_curmsg(&g, curmsg);
788    owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
789  }
790  /* if there are no messages set the direction to down in case we
791   * delete everything upwards */
792  owl_global_set_direction_downwards(&g);
793
794  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
795}
796
797void owl_function_expunge(void)
798{
799  owl_messagelist *ml = owl_global_get_msglist(&g);
800  owl_view *v = owl_global_get_current_view(&g);
801  int lastmsgid = owl_function_get_curmsg_id(v);
802
803  /* expunge the message list */
804  owl_messagelist_expunge(ml);
805
806  owl_function_redisplay_to_nearest(lastmsgid, v);
807 
808  owl_function_makemsg("Messages expunged");
809}
810
811void owl_function_firstmsg(void)
812{
813  owl_global_set_curmsg(&g, 0);
814  owl_global_set_topmsg(&g, 0);
815  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
816  owl_global_set_direction_downwards(&g);
817}
818
819void owl_function_lastmsg_noredisplay(void)
820{
821  int oldcurmsg, curmsg;
822  const owl_view *v;
823
824  v=owl_global_get_current_view(&g);
825  oldcurmsg=owl_global_get_curmsg(&g);
826  curmsg=owl_view_get_size(v)-1; 
827  if (curmsg<0) curmsg=0;
828  owl_global_set_curmsg(&g, curmsg);
829  if (oldcurmsg < curmsg) {
830    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
831  } else if (curmsg<owl_view_get_size(v)) {
832    /* If already at the end, blank the screen and move curmsg
833     * past the end of the messages. */
834    owl_global_set_topmsg(&g, curmsg+1);
835    owl_global_set_curmsg(&g, curmsg+1);
836  } 
837  /* owl_mainwin_redisplay(owl_global_get_mainwin(&g)); */
838  owl_global_set_direction_downwards(&g);
839}
840
841void owl_function_lastmsg(void)
842{
843  owl_function_lastmsg_noredisplay();
844  owl_mainwin_redisplay(owl_global_get_mainwin(&g)); 
845}
846
847void owl_function_shift_right(void)
848{
849  owl_global_set_rightshift(&g, owl_global_get_rightshift(&g)+10);
850}
851
852void owl_function_shift_left(void)
853{
854  int shift;
855
856  shift=owl_global_get_rightshift(&g);
857  if (shift > 0) {
858    owl_global_set_rightshift(&g, MAX(shift - 10, 0));
859  } else {
860    owl_function_beep();
861    owl_function_makemsg("Already full left");
862  }
863}
864
865void owl_function_unsuball(void)
866{
867  unsuball();
868  owl_function_makemsg("Unsubscribed from all messages.");
869}
870
871
872/* Load zephyr subscriptions from the named 'file' and load zephyr's
873 * default subscriptions as well.  An error message is printed if
874 * 'file' can't be opened or if zephyr reports an error in
875 * subscribing.
876 *
877 * If 'file' is NULL, this look for the default filename
878 * $HOME/.zephyr.subs.  If the file can not be opened in this case
879 * only, no error message is printed.
880 */
881void owl_function_loadsubs(const char *file)
882{
883  int ret, ret2;
884  const char *foo;
885  char *path;
886
887  if (file==NULL) {
888    ret=owl_zephyr_loadsubs(NULL, 0);
889  } else {
890    path = owl_util_makepath(file);
891    ret=owl_zephyr_loadsubs(path, 1);
892    g_free(path);
893  }
894
895  /* for backwards compatibility for now */
896  ret2=owl_zephyr_loaddefaultsubs();
897
898  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;
899
900  foo=file?file:"file";
901  if (ret==0 && ret2==0) {
902    if (!file) {
903      owl_function_makemsg("Subscribed to messages.");
904    } else {
905      owl_function_makemsg("Subscribed to messages from %s", file);
906    }
907  } else if (ret==-1) {
908    owl_function_error("Could not read %s", foo);
909  } else {
910    owl_function_error("Error subscribing to messages");
911  }
912}
913
914void owl_function_loadloginsubs(const char *file)
915{
916  int ret;
917
918  ret=owl_zephyr_loadloginsubs(file);
919
920  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;
921  if (ret==0) {
922  } else if (ret==-1) {
923    owl_function_error("Could not open file for login subscriptions.");
924  } else {
925    owl_function_error("Error subscribing to login messages from file.");
926  }
927}
928
929void owl_callback_aimlogin(owl_editwin *e) {
930  char *user = owl_editwin_get_cbdata(e);
931  owl_function_aimlogin(user,
932                        owl_editwin_get_text(e));
933}
934
935void owl_function_aimlogin(const char *user, const char *passwd) {
936  int ret;
937
938  /* clear the buddylist */
939  owl_buddylist_clear(owl_global_get_buddylist(&g));
940
941  /* try to login */
942  ret=owl_aim_login(user, passwd);
943  if (ret) owl_function_makemsg("Warning: login for %s failed.\n", user);
944}
945
946void owl_function_suspend(void)
947{
948  endwin();
949  printf("\n");
950  kill(getpid(), SIGSTOP);
951
952  /* resize to reinitialize all the windows when we come back */
953  owl_command_resize();
954}
955
956void owl_function_zaway_toggle(void)
957{
958  if (!owl_global_is_zaway(&g)) {
959    owl_global_set_zaway_msg(&g, owl_global_get_zaway_msg_default(&g));
960    owl_function_zaway_on();
961  } else {
962    owl_function_zaway_off();
963  }
964}
965
966void owl_function_zaway_on(void)
967{
968  owl_global_set_zaway_on(&g);
969  owl_function_makemsg("zaway set (%s)", owl_global_get_zaway_msg(&g));
970}
971
972void owl_function_zaway_off(void)
973{
974  owl_global_set_zaway_off(&g);
975  owl_function_makemsg("zaway off");
976}
977
978void owl_function_aaway_toggle(void)
979{
980  if (!owl_global_is_aaway(&g)) {
981    owl_global_set_aaway_msg(&g, owl_global_get_aaway_msg_default(&g));
982    owl_function_aaway_on();
983  } else {
984    owl_function_aaway_off();
985  }
986}
987
988void owl_function_aaway_on(void)
989{
990  owl_global_set_aaway_on(&g);
991  /* owl_aim_set_awaymsg(owl_global_get_zaway_msg(&g)); */
992  owl_function_makemsg("AIM away set (%s)", owl_global_get_aaway_msg(&g));
993}
994
995void owl_function_aaway_off(void)
996{
997  owl_global_set_aaway_off(&g);
998  /* owl_aim_set_awaymsg(""); */
999  owl_function_makemsg("AIM away off");
1000}
1001
1002void owl_function_quit(void)
1003{
1004  char *ret;
1005 
1006  /* zlog out if we need to */
1007  if (owl_global_is_havezephyr(&g) &&
1008      owl_global_is_shutdownlogout(&g)) {
1009    owl_zephyr_zlog_out();
1010  }
1011
1012  /* execute the commands in shutdown */
1013  ret = owl_perlconfig_execute("BarnOwl::Hooks::_shutdown();");
1014  g_free(ret);
1015
1016  /* signal our child process, if any */
1017  if (owl_global_get_newmsgproc_pid(&g)) {
1018    kill(owl_global_get_newmsgproc_pid(&g), SIGHUP);
1019  }
1020 
1021  /* Quit AIM */
1022  if (owl_global_is_aimloggedin(&g)) {
1023    owl_aim_logout();
1024  }
1025
1026  owl_function_debugmsg("Quitting BarnOwl");
1027  owl_select_quit_loop();
1028}
1029
1030void owl_function_calculate_topmsg(int direction)
1031{
1032  int recwinlines, topmsg, curmsg;
1033  const owl_view *v;
1034
1035  v=owl_global_get_current_view(&g);
1036  curmsg=owl_global_get_curmsg(&g);
1037  topmsg=owl_global_get_topmsg(&g);
1038  recwinlines=owl_global_get_recwin_lines(&g);
1039
1040  /*
1041  if (owl_view_get_size(v) < 1) {
1042    return;
1043  }
1044  */
1045
1046  switch (owl_global_get_scrollmode(&g)) {
1047  case OWL_SCROLLMODE_TOP:
1048    topmsg = owl_function_calculate_topmsg_top(direction, v, curmsg, topmsg, recwinlines);
1049    break;
1050  case OWL_SCROLLMODE_NEARTOP:
1051    topmsg = owl_function_calculate_topmsg_neartop(direction, v, curmsg, topmsg, recwinlines);
1052    break;
1053  case OWL_SCROLLMODE_CENTER:
1054    topmsg = owl_function_calculate_topmsg_center(direction, v, curmsg, topmsg, recwinlines);
1055    break;
1056  case OWL_SCROLLMODE_PAGED:
1057    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 0);
1058    break;
1059  case OWL_SCROLLMODE_PAGEDCENTER:
1060    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 1);
1061    break;
1062  case OWL_SCROLLMODE_NORMAL:
1063  default:
1064    topmsg = owl_function_calculate_topmsg_normal(direction, v, curmsg, topmsg, recwinlines);
1065  }
1066  owl_function_debugmsg("Calculated a topmsg of %i", topmsg);
1067  owl_global_set_topmsg(&g, topmsg);
1068}
1069
1070/* Returns what the new topmsg should be. 
1071 * Passed the last direction of movement,
1072 * the current view,
1073 * the current message number in the view,
1074 * the top message currently being displayed,
1075 * and the number of lines in the recwin.
1076 */
1077int owl_function_calculate_topmsg_top(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1078{
1079  return(curmsg);
1080}
1081
1082int owl_function_calculate_topmsg_neartop(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1083{
1084  if (curmsg>0 
1085      && (owl_message_get_numlines(owl_view_get_element(v, curmsg-1))
1086          <  recwinlines/2)) {
1087    return(curmsg-1);
1088  } else {
1089    return(curmsg);
1090  }
1091}
1092 
1093int owl_function_calculate_topmsg_center(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1094{
1095  int i, last, lines;
1096
1097  last = curmsg;
1098  lines = 0;
1099  for (i=curmsg-1; i>=0; i--) {
1100    lines += owl_message_get_numlines(owl_view_get_element(v, i));
1101    if (lines > recwinlines/2) break;
1102    last = i;
1103  }
1104  return(last);
1105}
1106 
1107int owl_function_calculate_topmsg_paged(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines, int center_on_page)
1108{
1109  int i, last, lines, savey;
1110 
1111  /* If we're off the top of the screen, scroll up such that the
1112   * curmsg is near the botton of the screen. */
1113  if (curmsg < topmsg) {
1114    last = curmsg;
1115    lines = 0;
1116    for (i=curmsg; i>=0; i--) {
1117      lines += owl_message_get_numlines(owl_view_get_element(v, i));
1118      if (lines > recwinlines) break;
1119    last = i;
1120    }
1121    if (center_on_page) {
1122      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
1123    } else {
1124      return(last);
1125    }
1126  }
1127
1128  /* Find number of lines from top to bottom of curmsg (store in savey) */
1129  savey=0;
1130  for (i=topmsg; i<=curmsg; i++) {
1131    savey+=owl_message_get_numlines(owl_view_get_element(v, i));
1132  }
1133
1134  /* if we're off the bottom of the screen, scroll down */
1135  if (savey > recwinlines) {
1136    if (center_on_page) {
1137      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
1138    } else {
1139      return(curmsg);
1140    }
1141  }
1142
1143  /* else just stay as we are... */
1144  return(topmsg);
1145}
1146
1147int owl_function_calculate_topmsg_normal(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1148{
1149  int savey, i, foo, y;
1150
1151  if (curmsg<0) return(topmsg);
1152   
1153  /* If we're off the top of the screen then center */
1154  if (curmsg<topmsg) {
1155    topmsg=owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines);
1156  }
1157
1158  /* If curmsg is so far past topmsg that there are more messages than
1159     lines, skip the line counting that follows because we're
1160     certainly off screen.  */
1161  savey=curmsg-topmsg;
1162  if (savey <= recwinlines) {
1163    /* Find number of lines from top to bottom of curmsg (store in savey) */
1164    savey = 0;
1165    for (i=topmsg; i<=curmsg; i++) {
1166      savey+=owl_message_get_numlines(owl_view_get_element(v, i));
1167    }
1168  }
1169
1170  /* If we're off the bottom of the screen, set the topmsg to curmsg
1171   * and scroll upwards */
1172  if (savey > recwinlines) {
1173    topmsg=curmsg;
1174    savey=owl_message_get_numlines(owl_view_get_element(v, curmsg));
1175    direction=OWL_DIRECTION_UPWARDS;
1176  }
1177 
1178  /* If our bottom line is less than 1/4 down the screen then scroll up */
1179  if (direction == OWL_DIRECTION_UPWARDS || direction == OWL_DIRECTION_NONE) {
1180    if (savey < (recwinlines / 4)) {
1181      y=0;
1182      for (i=curmsg; i>=0; i--) {
1183        foo=owl_message_get_numlines(owl_view_get_element(v, i));
1184        /* will we run the curmsg off the screen? */
1185        if ((foo+y) >= recwinlines) {
1186          i++;
1187          if (i>curmsg) i=curmsg;
1188          break;
1189        }
1190        /* have saved 1/2 the screen space? */
1191        y+=foo;
1192        if (y > (recwinlines / 2)) break;
1193      }
1194      if (i<0) i=0;
1195      return(i);
1196    }
1197  }
1198
1199  if (direction == OWL_DIRECTION_DOWNWARDS || direction == OWL_DIRECTION_NONE) {
1200    /* If curmsg bottom line is more than 3/4 down the screen then scroll down */
1201    if (savey > ((recwinlines * 3)/4)) {
1202      y=0;
1203      /* count lines from the top until we can save 1/2 the screen size */
1204      for (i=topmsg; i<curmsg; i++) {
1205        y+=owl_message_get_numlines(owl_view_get_element(v, i));
1206        if (y > (recwinlines / 2)) break;
1207      }
1208      if (i==curmsg) {
1209        i--;
1210      }
1211      return(i+1);
1212    }
1213  }
1214
1215  return(topmsg);
1216}
1217
1218void owl_function_resize(void)
1219{
1220  owl_global_set_resize_pending(&g);
1221}
1222
1223void G_GNUC_PRINTF(1, 2) owl_function_debugmsg(const char *fmt, ...)
1224{
1225  FILE *file;
1226  time_t now;
1227  va_list ap;
1228  va_start(ap, fmt);
1229
1230  if (!owl_global_is_debug_fast(&g))
1231    return;
1232
1233  file = owl_global_get_debug_file_handle(&g);
1234  if (!file) /* XXX should report this */
1235    return;
1236
1237  now = time(NULL);
1238
1239  fprintf(file, "[%d -  %.24s - %lds]: ",
1240          (int) getpid(), ctime(&now), now - owl_global_get_starttime(&g));
1241  vfprintf(file, fmt, ap);
1242  putc('\n', file);
1243  fflush(file);
1244
1245  va_end(ap);
1246}
1247
1248void owl_function_beep(void)
1249{
1250  if (owl_global_is_bell(&g)) {
1251    beep();
1252  }
1253}
1254
1255int owl_function_subscribe(const char *class, const char *inst, const char *recip)
1256{
1257  int ret;
1258
1259  ret=owl_zephyr_sub(class, inst, recip);
1260  if (ret) {
1261    owl_function_error("Error subscribing.");
1262  } else {
1263    owl_function_makemsg("Subscribed.");
1264  }
1265  return(ret);
1266}
1267
1268void owl_function_unsubscribe(const char *class, const char *inst, const char *recip)
1269{
1270  int ret;
1271
1272  ret=owl_zephyr_unsub(class, inst, recip);
1273  if (ret) {
1274    owl_function_error("Error subscribing.");
1275  } else {
1276    owl_function_makemsg("Unsubscribed.");
1277  }
1278}
1279
1280static void _dirty_everything(gpointer data, gpointer user_data) {
1281  owl_window *w = data;
1282  if (!owl_window_is_realized(w))
1283    return;
1284  owl_window_dirty(w);
1285  owl_window_children_foreach(w, _dirty_everything, NULL);
1286}
1287
1288void owl_function_full_redisplay(void)
1289{
1290  /* Ask every widget to redraw itself. */
1291  _dirty_everything(owl_window_get_screen(), NULL);
1292  /* Force ncurses to redisplay everything. */
1293  clearok(stdscr, TRUE);
1294}
1295
1296void owl_function_popless_text(const char *text)
1297{
1298  owl_popwin *pw;
1299  owl_viewwin *v;
1300
1301  if (owl_global_get_popwin(&g) || owl_global_get_viewwin(&g)) {
1302    owl_function_error("Popwin already in use.");
1303    return;
1304  }
1305  pw = owl_popwin_new();
1306  owl_global_set_popwin(&g, pw);
1307  owl_popwin_up(pw);
1308
1309  v = owl_viewwin_new_text(owl_popwin_get_content(pw), text);
1310  owl_global_set_viewwin(&g, v);
1311
1312  owl_global_push_context(&g, OWL_CTX_POPLESS, v, "popless", NULL);
1313}
1314
1315void owl_function_popless_fmtext(const owl_fmtext *fm)
1316{
1317  owl_popwin *pw;
1318  owl_viewwin *v;
1319
1320  if (owl_global_get_popwin(&g) || owl_global_get_viewwin(&g)) {
1321    owl_function_error("Popwin already in use.");
1322    return;
1323  }
1324  pw = owl_popwin_new();
1325  owl_global_set_popwin(&g, pw);
1326  owl_popwin_up(pw);
1327
1328  v = owl_viewwin_new_fmtext(owl_popwin_get_content(pw), fm);
1329  owl_global_set_viewwin(&g, v);
1330
1331  owl_global_push_context(&g, OWL_CTX_POPLESS, v, "popless", NULL);
1332}
1333
1334void owl_function_popless_file(const char *filename)
1335{
1336  owl_fmtext fm;
1337  FILE *file;
1338  char *s = NULL;
1339
1340  file=fopen(filename, "r");
1341  if (!file) {
1342    owl_function_error("Could not open file: %s", filename);
1343    return;
1344  }
1345
1346  owl_fmtext_init_null(&fm);
1347  while (owl_getline(&s, file))
1348    owl_fmtext_append_normal(&fm, s);
1349  g_free(s);
1350
1351  owl_function_popless_fmtext(&fm);
1352  owl_fmtext_cleanup(&fm);
1353  fclose(file);
1354}
1355
1356void owl_function_about(void)
1357{
1358  owl_function_popless_text(
1359    "This is BarnOwl version " OWL_VERSION_STRING ".\n\n"
1360    "BarnOwl is a fork of the Owl zephyr client, written and\n"
1361    "maintained by Alejandro Sedeno and Nelson Elhage at the\n"
1362    "Massachusetts Institute of Technology. \n"
1363    "\n"
1364    "Owl was written by James Kretchmar. The first version, 0.5, was\n"
1365    "released in March 2002.\n"
1366    "\n"
1367    "The name 'owl' was chosen in reference to the owls in the\n"
1368    "Harry Potter novels, who are tasked with carrying messages\n"
1369    "between Witches and Wizards. The name 'BarnOwl' was chosen\n"
1370    "because we feel our owls should live closer to our ponies.\n"
1371    "\n"
1372    "Copyright (c) 2006-2011 The BarnOwl Developers. All rights reserved.\n"
1373    "Copyright (c) 2004 James Kretchmar. All rights reserved.\n"
1374    "Copyright 2002 Massachusetts Institute of Technology\n"
1375    "\n"
1376    "This program is free software. You can redistribute it and/or\n"
1377    "modify under the terms of the Sleepycat License. Use the \n"
1378    "':show license' command to display the full license\n"
1379  );
1380}
1381
1382void owl_function_info(void)
1383{
1384  const owl_message *m;
1385  owl_fmtext fm, attrfm;
1386  const owl_view *v;
1387#ifdef HAVE_LIBZEPHYR
1388  const ZNotice_t *n;
1389#endif
1390
1391  owl_fmtext_init_null(&fm);
1392 
1393  v=owl_global_get_current_view(&g);
1394  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
1395  if (!m || owl_view_get_size(v)==0) {
1396    owl_function_error("No message selected\n");
1397    return;
1398  }
1399
1400  owl_fmtext_append_bold(&fm, "General Information:\n");
1401  owl_fmtext_appendf_normal(&fm, "  Msg Id    : %i\n", owl_message_get_id(m));
1402
1403  owl_fmtext_append_normal(&fm, "  Type      : ");
1404  owl_fmtext_append_bold(&fm, owl_message_get_type(m));
1405  owl_fmtext_append_normal(&fm, "\n");
1406
1407  if (owl_message_is_direction_in(m)) {
1408    owl_fmtext_append_normal(&fm, "  Direction : in\n");
1409  } else if (owl_message_is_direction_out(m)) {
1410    owl_fmtext_append_normal(&fm, "  Direction : out\n");
1411  } else if (owl_message_is_direction_none(m)) {
1412    owl_fmtext_append_normal(&fm, "  Direction : none\n");
1413  } else {
1414    owl_fmtext_append_normal(&fm, "  Direction : unknown\n");
1415  }
1416
1417  owl_fmtext_appendf_normal(&fm, "  Time      : %s\n", owl_message_get_timestr(m));
1418
1419  if (!owl_message_is_type_admin(m)) {
1420    owl_fmtext_appendf_normal(&fm, "  Sender    : %s\n", owl_message_get_sender(m));
1421    owl_fmtext_appendf_normal(&fm, "  Recipient : %s\n", owl_message_get_recipient(m));
1422  }
1423
1424  if (owl_message_is_type_zephyr(m)) {
1425    owl_fmtext_append_bold(&fm, "\nZephyr Specific Information:\n");
1426   
1427    owl_fmtext_appendf_normal(&fm, "  Class     : %s\n", owl_message_get_class(m));
1428    owl_fmtext_appendf_normal(&fm, "  Instance  : %s\n", owl_message_get_instance(m));
1429    owl_fmtext_appendf_normal(&fm, "  Opcode    : %s\n", owl_message_get_opcode(m));
1430#ifdef HAVE_LIBZEPHYR
1431    if (owl_message_is_direction_in(m)) {
1432      char *tmpbuff;
1433      int i, fields;
1434      const char *f;
1435
1436      n=owl_message_get_notice(m);
1437
1438      if (!owl_message_is_pseudo(m)) {
1439        owl_fmtext_append_normal(&fm, "  Kind      : ");
1440        if (n->z_kind==UNSAFE) {
1441          owl_fmtext_append_normal(&fm, "UNSAFE\n");
1442        } else if (n->z_kind==UNACKED) {
1443          owl_fmtext_append_normal(&fm, "UNACKED\n");
1444        } else if (n->z_kind==ACKED) {
1445          owl_fmtext_append_normal(&fm, "ACKED\n");
1446        } else if (n->z_kind==HMACK) {
1447          owl_fmtext_append_normal(&fm, "HMACK\n");
1448        } else if (n->z_kind==HMCTL) {
1449          owl_fmtext_append_normal(&fm, "HMCTL\n");
1450        } else if (n->z_kind==SERVACK) {
1451          owl_fmtext_append_normal(&fm, "SERVACK\n");
1452        } else if (n->z_kind==SERVNAK) {
1453          owl_fmtext_append_normal(&fm, "SERVNACK\n");
1454        } else if (n->z_kind==CLIENTACK) {
1455          owl_fmtext_append_normal(&fm, "CLIENTACK\n");
1456        } else if (n->z_kind==STAT) {
1457          owl_fmtext_append_normal(&fm, "STAT\n");
1458        } else {
1459          owl_fmtext_append_normal(&fm, "ILLEGAL VALUE\n");
1460        }
1461      }
1462      owl_fmtext_appendf_normal(&fm, "  Host      : %s\n", owl_message_get_hostname(m));
1463
1464      if (!owl_message_is_pseudo(m)) {
1465        owl_fmtext_append_normal(&fm, "\n");
1466        owl_fmtext_appendf_normal(&fm, "  Port      : %i\n", ntohs(n->z_port));
1467        owl_fmtext_appendf_normal(&fm, "  Auth      : %s\n", owl_zephyr_get_authstr(n));
1468
1469        /* FIXME make these more descriptive */
1470        owl_fmtext_appendf_normal(&fm, "  Checkd Ath: %i\n", n->z_checked_auth);
1471        owl_fmtext_appendf_normal(&fm, "  Multi notc: %s\n", n->z_multinotice);
1472        owl_fmtext_appendf_normal(&fm, "  Num other : %i\n", n->z_num_other_fields);
1473        owl_fmtext_appendf_normal(&fm, "  Msg Len   : %i\n", n->z_message_len);
1474
1475        fields=owl_zephyr_get_num_fields(n);
1476        owl_fmtext_appendf_normal(&fm, "  Fields    : %i\n", fields);
1477
1478        for (i = 0, f = owl_zephyr_first_raw_field(n); f != NULL;
1479             i++, f = owl_zephyr_next_raw_field(n, f)) {
1480          tmpbuff = owl_zephyr_field_as_utf8(n, f);
1481
1482          g_strdelimit(tmpbuff, "\n", '~');
1483          g_strdelimit(tmpbuff, "\r", '!');
1484
1485          owl_fmtext_appendf_normal(&fm, "  Field %i   : %s\n", i + 1, tmpbuff);
1486          g_free(tmpbuff);
1487        }
1488        owl_fmtext_appendf_normal(&fm, "  Default Fm: %s\n", n->z_default_format);
1489      }
1490
1491    }
1492#endif
1493  }
1494
1495  owl_fmtext_append_bold(&fm, "\nBarnOwl Message Attributes:\n");
1496  owl_message_attributes_tofmtext(m, &attrfm);
1497  owl_fmtext_append_fmtext(&fm, &attrfm);
1498 
1499  owl_function_popless_fmtext(&fm);
1500  owl_fmtext_cleanup(&fm);
1501  owl_fmtext_cleanup(&attrfm);
1502}
1503
1504/* print the current message in a popup window.
1505 * Use the 'default' style regardless of whatever
1506 * style the user may be using
1507 */
1508void owl_function_curmsg_to_popwin(void)
1509{
1510  const owl_view *v;
1511  const owl_message *m;
1512  const owl_style *s;
1513  owl_fmtext fm;
1514
1515  v=owl_global_get_current_view(&g);
1516  s=owl_global_get_style_by_name(&g, "default");
1517
1518  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
1519
1520  if (!m || owl_view_get_size(v)==0) {
1521    owl_function_error("No current message");
1522    return;
1523  }
1524
1525  owl_fmtext_init_null(&fm);
1526  owl_style_get_formattext(s, &fm, m);
1527
1528  owl_function_popless_fmtext(&fm);
1529  owl_fmtext_cleanup(&fm);
1530}
1531
1532void owl_function_page_curmsg(int step)
1533{
1534  /* scroll down or up within the current message IF the message is truncated */
1535
1536  int offset, curmsg, lines;
1537  const owl_view *v;
1538  owl_message *m;
1539
1540  offset=owl_global_get_curmsg_vert_offset(&g);
1541  v=owl_global_get_current_view(&g);
1542  curmsg=owl_global_get_curmsg(&g);
1543  m=owl_view_get_element(v, curmsg);
1544  if (!m || owl_view_get_size(v)==0) return;
1545  lines=owl_message_get_numlines(m);
1546
1547  if (offset==0) {
1548    /* Bail if the curmsg isn't the last one displayed */
1549    if (curmsg != owl_mainwin_get_last_msg(owl_global_get_mainwin(&g))) {
1550      owl_function_makemsg("The entire message is already displayed");
1551      return;
1552    }
1553   
1554    /* Bail if we're not truncated */
1555    if (!owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g))) {
1556      owl_function_makemsg("The entire message is already displayed");
1557      return;
1558    }
1559  }
1560 
1561 
1562  /* don't scroll past the last line */
1563  if (step>0) {
1564    if (offset+step > lines-1) {
1565      owl_global_set_curmsg_vert_offset(&g, lines-1);
1566    } else {
1567      owl_global_set_curmsg_vert_offset(&g, offset+step);
1568    }
1569  }
1570
1571  /* would we be before the beginning of the message? */
1572  if (step<0) {
1573    if (offset+step<0) {
1574      owl_global_set_curmsg_vert_offset(&g, 0);
1575    } else {
1576      owl_global_set_curmsg_vert_offset(&g, offset+step);
1577    }
1578  }
1579 
1580  /* redisplay */
1581  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1582}
1583
1584void owl_function_resize_typwin(int newsize)
1585{
1586  owl_global_set_typwin_lines(&g, newsize);
1587  owl_mainpanel_layout_contents(&g.mainpanel);
1588}
1589
1590void owl_function_mainwin_pagedown(void)
1591{
1592  int i;
1593
1594  i=owl_mainwin_get_last_msg(owl_global_get_mainwin(&g));
1595  if (i<0) return;
1596  if (owl_mainwin_is_last_msg_truncated(owl_global_get_mainwin(&g))
1597      && (owl_global_get_curmsg(&g) < i)
1598      && (i>0)) {
1599    i--;
1600  }
1601  owl_global_set_curmsg(&g, i);
1602  owl_function_nextmsg();
1603}
1604
1605void owl_function_mainwin_pageup(void)
1606{
1607  owl_global_set_curmsg(&g, owl_global_get_topmsg(&g));
1608  owl_function_prevmsg();
1609}
1610
1611void owl_function_getsubs(void)
1612{
1613  char *buff;
1614
1615  buff=owl_zephyr_getsubs();
1616
1617  if (buff) {
1618    owl_function_popless_text(buff);
1619  } else {
1620    owl_function_popless_text("Error getting subscriptions");
1621  }
1622           
1623  g_free(buff);
1624}
1625
1626void owl_function_printallvars(void)
1627{
1628  const owl_variable *v;
1629  const char *name;
1630  char *var;
1631  GPtrArray *varnames;
1632  int i;
1633  GString *str   = g_string_new("");
1634
1635  g_string_append_printf(str, "%-20s = %s\n", "VARIABLE", "VALUE");
1636  g_string_append_printf(str, "%-20s   %s\n",  "--------", "-----");
1637  varnames = owl_variable_dict_get_names(owl_global_get_vardict(&g));
1638  for (i = 0; i < varnames->len; i++) {
1639    name = varnames->pdata[i];
1640    if (name && name[0]!='_') {
1641      g_string_append_printf(str, "\n%-20s = ", name);
1642      v = owl_variable_get_var(owl_global_get_vardict(&g), name);
1643      var = owl_variable_get_tostring(v);
1644      if (var) {
1645        g_string_append(str, var);
1646        g_free(var);
1647      } else {
1648        g_string_append(str, "<null>");
1649      }
1650    }
1651  }
1652  g_string_append(str, "\n");
1653  owl_ptr_array_free(varnames, g_free);
1654
1655  owl_function_popless_text(str->str);
1656  g_string_free(str, true);
1657}
1658
1659void owl_function_show_variables(void)
1660{
1661  const owl_variable *v;
1662  GPtrArray *varnames;
1663  owl_fmtext fm; 
1664  int i;
1665  const char *varname;
1666
1667  owl_fmtext_init_null(&fm);
1668  owl_fmtext_append_bold(&fm, 
1669      "Variables: (use 'show variable <name>' for details)\n");
1670  varnames = owl_variable_dict_get_names(owl_global_get_vardict(&g));
1671  for (i = 0; i < varnames->len; i++) {
1672    varname = varnames->pdata[i];
1673    if (varname && varname[0]!='_') {
1674      v = owl_variable_get_var(owl_global_get_vardict(&g), varname);
1675      owl_variable_describe(v, &fm);
1676    }
1677  }
1678  owl_ptr_array_free(varnames, g_free);
1679  owl_function_popless_fmtext(&fm);
1680  owl_fmtext_cleanup(&fm);
1681}
1682
1683void owl_function_show_variable(const char *name)
1684{
1685  const owl_variable *v;
1686  owl_fmtext fm; 
1687
1688  owl_fmtext_init_null(&fm);
1689  v = owl_variable_get_var(owl_global_get_vardict(&g), name);
1690  if (v)
1691    owl_variable_get_help(v, &fm);
1692  else
1693    owl_fmtext_append_normal(&fm, "No such variable...\n");
1694  owl_function_popless_fmtext(&fm);
1695  owl_fmtext_cleanup(&fm);
1696}
1697
1698void owl_function_delete_and_expunge_by_id(int id, bool exclaim_success)
1699{
1700  const owl_messagelist *ml = owl_global_get_msglist(&g);
1701  int msg = owl_messagelist_get_index_by_id(ml, id);
1702  if (msg < 0) {
1703    owl_function_error("No message with id %d: unable to delete", id);
1704  } else {
1705    owl_function_delete_and_expunge_message(msg);
1706    if (exclaim_success)
1707      owl_function_makemsg("Message deleted and expunged");
1708  }
1709}
1710
1711/* note: this applies to global message list, not to view.
1712 * If flag is 1, deletes.  If flag is 0, undeletes. */
1713void owl_function_delete_by_id(int id, int flag)
1714{
1715  const owl_messagelist *ml;
1716  owl_message *m;
1717  ml = owl_global_get_msglist(&g);
1718  m = owl_messagelist_get_by_id(ml, id);
1719  if (m) {
1720    if (flag == 1) {
1721      owl_message_mark_delete(m);
1722    } else if (flag == 0) {
1723      owl_message_unmark_delete(m);
1724    }
1725    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1726  } else {
1727    owl_function_error("No message with id %d: unable to mark for (un)delete",id);
1728  }
1729}
1730
1731void owl_function_delete_automsgs(void)
1732{
1733  /* mark for deletion all messages in the current view that match the
1734   * 'trash' filter */
1735
1736  int i, j, count;
1737  owl_message *m;
1738  const owl_view *v;
1739  const owl_filter *f;
1740
1741  /* get the trash filter */
1742  f=owl_global_get_filter(&g, "trash");
1743  if (!f) {
1744    owl_function_error("No trash filter defined");
1745    return;
1746  }
1747
1748  v=owl_global_get_current_view(&g);
1749
1750  count=0;
1751  j=owl_view_get_size(v);
1752  for (i=0; i<j; i++) {
1753    m=owl_view_get_element(v, i);
1754    if (owl_filter_message_match(f, m)) {
1755      count++;
1756      owl_message_mark_delete(m);
1757    }
1758  }
1759  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1760  owl_function_makemsg("%i messages marked for deletion", count);
1761}
1762
1763void owl_function_status(void)
1764{
1765  char buff[MAXPATHLEN+1];
1766  time_t start;
1767  int up, days, hours, minutes;
1768  owl_fmtext fm;
1769
1770  owl_fmtext_init_null(&fm);
1771
1772  start=owl_global_get_starttime(&g);
1773
1774  owl_fmtext_append_normal(&fm, "General Information:\n");
1775
1776  owl_fmtext_append_normal(&fm, "  Version: ");
1777  owl_fmtext_append_normal(&fm, OWL_VERSION_STRING);
1778  owl_fmtext_append_normal(&fm, "\n");
1779
1780  owl_fmtext_append_normal(&fm, "  Startup Arguments: ");
1781  owl_fmtext_append_normal(&fm, owl_global_get_startupargs(&g));
1782  owl_fmtext_append_normal(&fm, "\n");
1783
1784  owl_fmtext_append_normal(&fm, "  Current Directory: ");
1785  if(getcwd(buff, MAXPATHLEN) == NULL) {
1786    owl_fmtext_append_normal(&fm, "<Error in getcwd>");
1787  } else {
1788    owl_fmtext_append_normal(&fm, buff);
1789  }
1790  owl_fmtext_append_normal(&fm, "\n");
1791
1792  owl_fmtext_appendf_normal(&fm, "  Startup Time: %s", ctime(&start));
1793
1794  up=owl_global_get_runtime(&g);
1795  days=up/86400;
1796  up-=days*86400;
1797  hours=up/3600;
1798  up-=hours*3600;
1799  minutes=up/60;
1800  up-=minutes*60;
1801  owl_fmtext_appendf_normal(&fm, "  Run Time: %i days %2.2i:%2.2i:%2.2i\n", days, hours, minutes, up);
1802
1803  owl_fmtext_append_normal(&fm, "\nProtocol Options:\n");
1804  owl_fmtext_append_normal(&fm, "  Zephyr included    : ");
1805  if (owl_global_is_havezephyr(&g)) {
1806    owl_fmtext_append_normal(&fm, "yes\n");
1807  } else {
1808    owl_fmtext_append_normal(&fm, "no\n");
1809  }
1810  owl_fmtext_append_normal(&fm, "  AIM included       : yes\n");
1811  owl_fmtext_append_normal(&fm, "  Loopback included  : yes\n");
1812
1813
1814  owl_fmtext_append_normal(&fm, "\nBuild Options:\n");
1815  owl_fmtext_append_normal(&fm, "  Stderr redirection : ");
1816#if OWL_STDERR_REDIR
1817  owl_fmtext_append_normal(&fm, "yes\n");
1818#else
1819  owl_fmtext_append_normal(&fm, "no\n");
1820#endif
1821 
1822
1823  owl_fmtext_append_normal(&fm, "\nAIM Status:\n");
1824  owl_fmtext_append_normal(&fm, "  Logged in: ");
1825  if (owl_global_is_aimloggedin(&g)) {
1826    owl_fmtext_append_normal(&fm, owl_global_get_aim_screenname(&g));
1827    owl_fmtext_append_normal(&fm, "\n");
1828  } else {
1829    owl_fmtext_append_normal(&fm, "(not logged in)\n");
1830  }
1831
1832  owl_fmtext_append_normal(&fm, "  Processing events: ");
1833  if (owl_global_is_doaimevents(&g)) {
1834    owl_fmtext_append_normal(&fm, "yes\n");
1835  } else {
1836    owl_fmtext_append_normal(&fm, "no\n");
1837  }
1838
1839  owl_function_popless_fmtext(&fm);
1840  owl_fmtext_cleanup(&fm);
1841}
1842
1843void owl_function_show_term(void)
1844{
1845  owl_fmtext fm;
1846
1847  owl_fmtext_init_null(&fm);
1848  owl_fmtext_appendf_normal(&fm, "Terminal Lines: %i\nTerminal Columns: %i\n",
1849          owl_global_get_lines(&g),
1850          owl_global_get_cols(&g));
1851
1852  if (has_colors()) {
1853    owl_fmtext_append_normal(&fm, "Color: Yes\n");
1854    owl_fmtext_appendf_normal(&fm, "Number of color pairs: %i\n", owl_util_get_colorpairs());
1855    owl_fmtext_appendf_normal(&fm, "Can change colors: %s\n", can_change_color() ? "yes" : "no");
1856  } else {
1857    owl_fmtext_append_normal(&fm, "Color: No\n");
1858  }
1859
1860  owl_function_popless_fmtext(&fm);
1861  owl_fmtext_cleanup(&fm);
1862}
1863
1864/* if type = 0 then normal reply.
1865 * if type = 1 then it's a reply to sender
1866 * if enter = 0 then allow the command to be edited
1867 * if enter = 1 then don't wait for editing
1868 */
1869void owl_function_reply(int type, int enter)
1870{
1871  char *buff=NULL;
1872  const owl_message *m;
1873  const owl_filter *f;
1874 
1875  if (owl_view_get_size(owl_global_get_current_view(&g))==0) {
1876    owl_function_error("No message selected");
1877  } else {
1878    char *cmd;
1879   
1880    m=owl_view_get_element(owl_global_get_current_view(&g), owl_global_get_curmsg(&g));
1881    if (!m) {
1882      owl_function_error("No message selected");
1883      return;
1884    }
1885
1886    /* first check if we catch the reply-lockout filter */
1887    f=owl_global_get_filter(&g, "reply-lockout");
1888    if (f) {
1889      if (owl_filter_message_match(f, m)) {
1890        owl_function_error("Sorry, replies to this message have been disabled by the reply-lockout filter");
1891        return;
1892      }
1893    }
1894
1895    /* then check if it's a question and just bring up the command prompt */
1896    if (owl_message_is_question(m)) {
1897      owl_function_start_command("");
1898      return;
1899    }
1900
1901    if((type == 0 &&
1902        (cmd=owl_perlconfig_message_call_method(m, "replycmd", 0, NULL))) ||
1903       (type == 1 &&
1904        (cmd=owl_perlconfig_message_call_method(m, "replysendercmd", 0, NULL)))) {
1905      buff = cmd;
1906    }
1907
1908    if(!buff) {
1909        owl_function_error("I don't know how to reply to that message.");
1910        return;
1911    }
1912
1913    if (enter) {
1914      owl_history *hist = owl_global_get_cmd_history(&g);
1915      owl_history_store(hist, buff, false);
1916      owl_function_command_norv(buff);
1917    } else {
1918      owl_function_start_command(buff);
1919    }
1920    g_free(buff);
1921  }
1922}
1923
1924void owl_function_zlocate(int argc, const char *const *argv, int auth)
1925{
1926  owl_fmtext fm;
1927  char *ptr;
1928  char *result;
1929  int i;
1930
1931  owl_fmtext_init_null(&fm);
1932
1933  for (i=0; i<argc; i++) {
1934    ptr = long_zuser(argv[i]);
1935    result = owl_zephyr_zlocate(ptr, auth);
1936    owl_fmtext_append_normal(&fm, result);
1937    g_free(result);
1938    g_free(ptr);
1939  }
1940
1941  owl_function_popless_fmtext(&fm);
1942  owl_fmtext_cleanup(&fm);
1943}
1944
1945void owl_callback_command(owl_editwin *e)
1946{
1947  char *rv;
1948  const char *line = owl_editwin_get_text(e);
1949
1950  rv = owl_function_command(line);
1951   if (rv) {
1952    owl_function_makemsg("%s", rv);
1953    g_free(rv);
1954  }
1955}
1956
1957void owl_function_start_command(const char *line)
1958{
1959  owl_editwin *tw;
1960  owl_context *ctx;
1961
1962  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
1963
1964  owl_editwin_set_locktext(tw, "command: ");
1965
1966  owl_editwin_insert_string(tw, line);
1967
1968  ctx = owl_editcontext_new(OWL_CTX_EDITLINE, tw, "editline",
1969                            owl_global_deactivate_editcontext, &g);
1970  owl_global_push_context_obj(&g, ctx);
1971  owl_editwin_set_callback(tw, owl_callback_command);
1972}
1973
1974CALLER_OWN owl_editwin *owl_function_start_question(const char *line)
1975{
1976  owl_editwin *tw;
1977  owl_context *ctx;
1978
1979  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
1980
1981  owl_editwin_set_locktext(tw, line);
1982
1983  ctx = owl_editcontext_new(OWL_CTX_EDITRESPONSE, tw, "editresponse",
1984                            owl_global_deactivate_editcontext, &g);
1985  owl_global_push_context_obj(&g, ctx);
1986  return tw;
1987}
1988
1989CALLER_OWN owl_editwin *owl_function_start_password(const char *line)
1990{
1991  owl_editwin *tw;
1992  owl_context *ctx;
1993
1994  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, NULL);
1995
1996  owl_editwin_set_echochar(tw, '*');
1997
1998  owl_editwin_set_locktext(tw, line);
1999
2000  ctx = owl_editcontext_new(OWL_CTX_EDITRESPONSE, tw, "editresponse",
2001                            owl_global_deactivate_editcontext, &g);
2002  owl_global_push_context_obj(&g, ctx);
2003  return tw;
2004}
2005
2006CALLER_OWN char *owl_function_exec(int argc, const char *const *argv, const char *buff, int type)
2007{
2008  /* if type == 1 display in a popup
2009   * if type == 2 display an admin messages
2010   * if type == 0 return output
2011   * else display in a popup
2012   */
2013  const char *redirect = " 2>&1 < /dev/null";
2014  char *newbuff;
2015  char *out;
2016  FILE *p;
2017
2018#if OWL_STDERR_REDIR
2019  redirect = " < /dev/null";
2020#endif
2021
2022  if (argc<2) {
2023    owl_function_error("Wrong number of arguments to the exec command");
2024    return NULL;
2025  }
2026
2027  buff = skiptokens(buff, 1);
2028  newbuff = g_strdup_printf("exec%s; %s", redirect, buff);
2029
2030  if (type == OWL_OUTPUT_POPUP) {
2031    owl_popexec_new(newbuff);
2032  } else {
2033    p = popen(newbuff, "r");
2034    out = owl_slurp(p);
2035    pclose(p);
2036   
2037    if (type == OWL_OUTPUT_RETURN) {
2038      g_free(newbuff);
2039      return out;
2040    } else if (type == OWL_OUTPUT_ADMINMSG) {
2041      owl_function_adminmsg(buff, out);
2042    }
2043    g_free(out);
2044  }
2045  g_free(newbuff);
2046  return NULL;
2047}
2048
2049CALLER_OWN char *owl_function_perl(int argc, const char *const *argv, const char *buff, int type)
2050{
2051  /* if type == 1 display in a popup
2052   * if type == 2 display an admin messages
2053   * if type == 0 return output
2054   * else display in a popup
2055   */
2056  char *perlout;
2057
2058  if (argc<2) {
2059    owl_function_error("Wrong number of arguments to perl command");
2060    return NULL;
2061  }
2062
2063  /* consume first token (argv[0]) */
2064  buff = skiptokens(buff, 1);
2065
2066  perlout = owl_perlconfig_execute(buff);
2067  if (perlout) { 
2068    if (type == OWL_OUTPUT_POPUP) {
2069      owl_function_popless_text(perlout);
2070    } else if (type == OWL_OUTPUT_ADMINMSG) {
2071      owl_function_adminmsg(buff, perlout);
2072    } else if (type == OWL_OUTPUT_RETURN) {
2073      return perlout;
2074    }
2075    g_free(perlout);
2076  }
2077  return NULL;
2078}
2079
2080/* Change the filter associated with the current view.
2081 * This also figures out which message in the new filter
2082 * should have the pointer.
2083 */
2084void owl_function_change_currentview_filter(const char *filtname)
2085{
2086  owl_view *v;
2087  owl_filter *f;
2088  int curid=-1, newpos, curmsg;
2089  const owl_message *curm=NULL;
2090
2091  v=owl_global_get_current_view(&g);
2092
2093  curmsg=owl_global_get_curmsg(&g);
2094  if (curmsg==-1) {
2095    owl_function_debugmsg("Hit the curmsg==-1 case in change_view");
2096  } else {
2097    curm=owl_view_get_element(v, curmsg);
2098    if (curm) {
2099      curid=owl_message_get_id(curm);
2100      owl_view_save_curmsgid(v, curid);
2101    }
2102  }
2103
2104  f=owl_global_get_filter(&g, filtname);
2105  if (!f) {
2106    owl_function_error("Unknown filter %s", filtname);
2107    return;
2108  }
2109
2110  owl_view_new_filter(v, f);
2111
2112  /* Figure out what to set the current message to.
2113   * - If the view we're leaving has messages in it, go to the closest message
2114   *   to the last message pointed to in that view.
2115   * - If the view we're leaving is empty, try to restore the position
2116   *   from the last time we were in the new view.  */
2117  if (curm) {
2118    newpos = owl_view_get_nearest_to_msgid(v, curid);
2119  } else {
2120    newpos = owl_view_get_nearest_to_saved(v);
2121  }
2122
2123  owl_global_set_curmsg(&g, newpos);
2124  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
2125  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2126  owl_global_set_direction_downwards(&g);
2127}
2128
2129/* Create a new filter, or replace an existing one
2130 * with a new definition.
2131 */
2132void owl_function_create_filter(int argc, const char *const *argv)
2133{
2134  owl_filter *f;
2135  const owl_view *v;
2136  int inuse = 0;
2137
2138  if (argc < 2) {
2139    owl_function_error("Wrong number of arguments to filter command");
2140    return;
2141  }
2142
2143  owl_function_debugmsg("owl_function_create_filter: starting to create filter named %s", argv[1]);
2144
2145  v=owl_global_get_current_view(&g);
2146
2147  /* don't touch the all filter */
2148  if (!strcmp(argv[1], "all")) {
2149    owl_function_error("You may not change the 'all' filter.");
2150    return;
2151  }
2152
2153  /* deal with the case of trying change the filter color */
2154  if (argc==4 && !strcmp(argv[2], "-c")) {
2155    f=owl_global_get_filter(&g, argv[1]);
2156    if (!f) {
2157      owl_function_error("The filter '%s' does not exist.", argv[1]);
2158      return;
2159    }
2160    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2161      owl_function_error("The color '%s' is not available.", argv[3]);
2162      return;
2163    }
2164    owl_filter_set_fgcolor(f, owl_util_string_to_color(argv[3]));
2165    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2166    return;
2167  }
2168  if (argc==4 && !strcmp(argv[2], "-b")) {
2169    f=owl_global_get_filter(&g, argv[1]);
2170    if (!f) {
2171      owl_function_error("The filter '%s' does not exist.", argv[1]);
2172      return;
2173    }
2174    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2175      owl_function_error("The color '%s' is not available.", argv[3]);
2176      return;
2177    }
2178    owl_filter_set_bgcolor(f, owl_util_string_to_color(argv[3]));
2179    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2180    return;
2181  }
2182
2183  /* create the filter and check for errors */
2184  f = owl_filter_new(argv[1], argc-2, argv+2);
2185  if (f == NULL) {
2186    owl_function_error("Invalid filter");
2187    return;
2188  }
2189
2190  /* if the named filter is in use by the current view, remember it */
2191  if (!strcmp(owl_view_get_filtname(v), argv[1])) {
2192    inuse=1;
2193  }
2194
2195  /* if the named filter already exists, nuke it */
2196  if (owl_global_get_filter(&g, argv[1])) {
2197    owl_global_remove_filter(&g, argv[1]);
2198  }
2199
2200  /* add the filter */
2201  owl_global_add_filter(&g, f);
2202
2203  /* if it was in use by the current view then update */
2204  if (inuse) {
2205    owl_function_change_currentview_filter(argv[1]);
2206  }
2207  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2208}
2209
2210/* If 'filtername' does not start with 'not-' create a filter named
2211 * 'not-<filtername>' defined as "not filter <filtername>".  If the
2212 * filter 'not-<filtername>' already exists, do not overwrite it.  If
2213 * 'filtername' begins with 'not-' and a filter 'filtername' already
2214 * exists, then do nothing.  If the filter 'filtername' does not
2215 * exist, create it and define it as 'not filter <filtername>'
2216 *
2217 * Returns the name of the negated filter, which the caller must free.
2218 */
2219CALLER_OWN char *owl_function_create_negative_filter(const char *filtername)
2220{
2221  char *newname;
2222  const owl_filter *tmpfilt;
2223  const char *argv[5];
2224
2225  owl_function_debugmsg("owl_function_create_negative_filter");
2226 
2227  if (!strncmp(filtername, "not-", 4)) {
2228    newname=g_strdup(filtername+4);
2229  } else {
2230    newname=g_strdup_printf("not-%s", filtername);
2231  }
2232
2233  tmpfilt=owl_global_get_filter(&g, newname);
2234  if (!tmpfilt) {
2235    argv[0]="filter"; /* anything is fine here */
2236    argv[1]=newname;
2237    argv[2]="not";
2238    argv[3]="filter";
2239    argv[4]=filtername;
2240    owl_function_create_filter(5, argv);
2241  }
2242
2243  owl_function_debugmsg("owl_function_create_negative_filter: returning with %s", newname);
2244  return(newname);
2245}
2246
2247void owl_function_show_filters(void)
2248{
2249  const owl_filter *f;
2250  GList *fl;
2251  owl_fmtext fm;
2252
2253  owl_fmtext_init_null(&fm);
2254
2255  owl_fmtext_append_bold(&fm, "Filters:\n");
2256
2257  for (fl = g.filterlist; fl; fl = g_list_next(fl)) {
2258    f = fl->data;
2259    owl_fmtext_append_normal(&fm, "   ");
2260    owl_fmtext_append_normal_color(&fm, owl_filter_get_name(f),
2261                                   owl_filter_get_fgcolor(f),
2262                                   owl_filter_get_bgcolor(f));
2263    owl_fmtext_append_normal(&fm, "\n");
2264  }
2265  owl_function_popless_fmtext(&fm);
2266  owl_fmtext_cleanup(&fm);
2267}
2268
2269void owl_function_show_filter(const char *name)
2270{
2271  const owl_filter *f;
2272  char *buff, *tmp;
2273
2274  f=owl_global_get_filter(&g, name);
2275  if (!f) {
2276    owl_function_error("There is no filter named %s", name);
2277    return;
2278  }
2279  tmp = owl_filter_print(f);
2280  buff = g_strdup_printf("%s: %s", owl_filter_get_name(f), tmp);
2281  owl_function_popless_text(buff);
2282  g_free(buff);
2283  g_free(tmp);
2284}
2285
2286void owl_function_show_zpunts(void)
2287{
2288  const owl_filter *f;
2289  const GPtrArray *fl;
2290  char *tmp;
2291  owl_fmtext fm;
2292  int i;
2293
2294  owl_fmtext_init_null(&fm);
2295
2296  fl=owl_global_get_puntlist(&g);
2297  owl_fmtext_append_bold(&fm, "Active zpunt filters:\n");
2298
2299  for (i = 0; i < fl->len; i++) {
2300    f = fl->pdata[i];
2301    owl_fmtext_appendf_normal(&fm, "[% 2d] ", i+1);
2302    tmp = owl_filter_print(f);
2303    owl_fmtext_append_normal(&fm, tmp);
2304    g_free(tmp);
2305  }
2306  owl_function_popless_fmtext(&fm);
2307  owl_fmtext_cleanup(&fm);
2308}
2309
2310/* Create a filter for a class, instance if one doesn't exist.  If
2311 * instance is NULL then catch all messgaes in the class.  Returns the
2312 * name of the filter or null.  The caller must free this name.
2313 * If 'related' is nonzero, encompass unclasses and .d classes as well.
2314 */
2315CALLER_OWN char *owl_function_classinstfilt(const char *c, const char *i, int related) 
2316{
2317  owl_filter *f;
2318  char *filtname;
2319  char *tmpclass, *tmpinstance = NULL;
2320  char *class, *instance = NULL;
2321  GString *buf;
2322
2323  if (related) {
2324    class = owl_util_baseclass(c);
2325    if (i) {
2326      instance = owl_util_baseclass(i);
2327    }
2328  } else {
2329    class = g_strdup(c);
2330    if (i) {
2331      instance = g_strdup(i);
2332    }
2333  }
2334
2335  /* name for the filter */
2336  if (!instance) {
2337    filtname = g_strdup_printf("%sclass-%s", related ? "related-" : "", class);
2338  } else {
2339    filtname = g_strdup_printf("%sclass-%s-instance-%s", related ? "related-" : "", class, instance);
2340  }
2341  /* downcase it */
2342  {
2343    char *temp = g_utf8_strdown(filtname, -1);
2344    if (temp) {
2345      g_free(filtname);
2346      filtname = temp;
2347    }
2348  }
2349 
2350  /* if it already exists then go with it.  This lets users override */
2351  if (owl_global_get_filter(&g, filtname)) {
2352    goto done;
2353  }
2354
2355  /* create the new filter */
2356  tmpclass=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2357  if (instance) {
2358    tmpinstance=owl_text_quote(instance, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2359  }
2360
2361  buf = g_string_new("");
2362  owl_string_appendf_quoted(buf,
2363                            related ? "class ^(un)*%q(\\.d)*$" : "class ^%q$",
2364                            tmpclass);
2365
2366  if (tmpinstance) {
2367    owl_string_appendf_quoted(buf,
2368                              related ?
2369                              " and ( instance ^(un)*%q(\\.d)*$ )" :
2370                              " and instance ^%q$",
2371                              tmpinstance);
2372  }
2373  g_free(tmpclass);
2374  g_free(tmpinstance);
2375
2376  f = owl_filter_new_fromstring(filtname, buf->str);
2377  g_string_free(buf, true);
2378  if (f == NULL) {
2379    /* Couldn't make a filter for some reason. Return NULL. */
2380    owl_function_error("Error creating filter '%s'", filtname);
2381    g_free(filtname);
2382    filtname = NULL;
2383    goto done;
2384  }
2385
2386  /* add it to the global list */
2387  owl_global_add_filter(&g, f);
2388
2389done:
2390  g_free(class);
2391  g_free(instance);
2392  return(filtname);
2393}
2394
2395/* Create a filter for personal zephyrs to or from the specified
2396 * zephyr user.  Includes login/logout notifications for the user.
2397 * The name of the filter will be 'user-<shortuser>'.  If a filter already
2398 * exists with this name, no new filter will be created.  This allows
2399 * the configuration to override this function.  Returns the name of
2400 * the filter, which the caller must free.
2401 */
2402CALLER_OWN char *owl_function_zuserfilt(const char *longuser)
2403{
2404  owl_filter *f;
2405  char *argbuff, *esclonguser, *shortuser, *filtname;
2406
2407  /* name for the filter */
2408  shortuser = short_zuser(longuser);
2409  filtname = g_strdup_printf("user-%s", shortuser);
2410  g_free(shortuser);
2411
2412  /* if it already exists then go with it.  This lets users override */
2413  if (owl_global_get_filter(&g, filtname)) {
2414    return filtname;
2415  }
2416
2417  /* create the new-internal filter */
2418  esclonguser = owl_text_quote(longuser, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2419
2420  argbuff=owl_string_build_quoted("( type ^zephyr$ and filter personal and "
2421      "( ( direction ^in$ and sender ^%q$ ) or ( direction ^out$ and "
2422      "recipient ^%q$ ) ) ) or ( ( class ^login$ ) and ( sender ^%q$ ) )",
2423      esclonguser, esclonguser, esclonguser);
2424  g_free(esclonguser);
2425
2426  f = owl_filter_new_fromstring(filtname, argbuff);
2427  g_free(argbuff);
2428
2429  if (f == NULL) {
2430    /* Couldn't make a filter for some reason. Return NULL. */
2431    owl_function_error("Error creating filter '%s'", filtname);
2432    g_free(filtname);
2433    return NULL;
2434  }
2435
2436  /* add it to the global list */
2437  owl_global_add_filter(&g, f);
2438
2439  return(filtname);
2440}
2441
2442/* Create a filter for AIM IM messages to or from the specified
2443 * screenname.  The name of the filter will be 'aimuser-<user>'.  If a
2444 * filter already exists with this name, no new filter will be
2445 * created.  This allows the configuration to override this function.
2446 * Returns the name of the filter, which the caller must free.
2447 */
2448CALLER_OWN char *owl_function_aimuserfilt(const char *user)
2449{
2450  owl_filter *f;
2451  char *argbuff, *filtname;
2452  char *escuser;
2453
2454  /* name for the filter */
2455  filtname=g_strdup_printf("aimuser-%s", user);
2456
2457  /* if it already exists then go with it.  This lets users override */
2458  if (owl_global_get_filter(&g, filtname)) {
2459    return filtname;
2460  }
2461
2462  /* create the new-internal filter */
2463  escuser = owl_text_quote(user, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2464
2465  argbuff = g_strdup_printf(
2466      "( type ^aim$ and ( ( sender ^%1$s$ and recipient ^%2$s$ ) or "
2467      "( sender ^%2$s$ and recipient ^%1$s$ ) ) )",
2468      escuser, owl_global_get_aim_screenname_for_filters(&g));
2469  g_free(escuser);
2470
2471  f = owl_filter_new_fromstring(filtname, argbuff);
2472  g_free(argbuff);
2473
2474  if (f == NULL) {
2475    owl_function_error("Error creating filter '%s'", filtname);
2476    g_free(filtname);
2477    return NULL;
2478  }
2479
2480  /* add it to the global list */
2481  owl_global_add_filter(&g, f);
2482
2483  return(filtname);
2484}
2485
2486CALLER_OWN char *owl_function_typefilt(const char *type)
2487{
2488  owl_filter *f;
2489  char *argbuff, *filtname, *esctype;
2490
2491  /* name for the filter */
2492  filtname=g_strdup_printf("type-%s", type);
2493
2494  /* if it already exists then go with it.  This lets users override */
2495  if (owl_global_get_filter(&g, filtname)) {
2496    return filtname;
2497  }
2498
2499  /* create the new-internal filter */
2500  esctype = owl_text_quote(type, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2501
2502  argbuff = owl_string_build_quoted("type ^%q$", esctype);
2503  g_free(esctype);
2504
2505  f = owl_filter_new_fromstring(filtname, argbuff);
2506  g_free(argbuff);
2507
2508  if (f == NULL) {
2509    owl_function_error("Error creating filter '%s'", filtname);
2510    g_free(filtname);
2511    return NULL;
2512  }
2513
2514  /* add it to the global list */
2515  owl_global_add_filter(&g, f);
2516
2517  return filtname;
2518}
2519
2520/* If flag is 1, marks for deletion.  If flag is 0,
2521 * unmarks for deletion. */
2522void owl_function_delete_curview_msgs(int flag)
2523{
2524  const owl_view *v;
2525  int i, j;
2526
2527  v=owl_global_get_current_view(&g);
2528  j=owl_view_get_size(v);
2529  for (i=0; i<j; i++) {
2530    if (flag == 1) {
2531      owl_message_mark_delete(owl_view_get_element(v, i));
2532    } else if (flag == 0) {
2533      owl_message_unmark_delete(owl_view_get_element(v, i));
2534    }
2535  }
2536
2537  owl_function_makemsg("%i messages marked for %sdeletion", j, flag?"":"un");
2538
2539  owl_mainwin_redisplay(owl_global_get_mainwin(&g)); 
2540}
2541
2542static CALLER_OWN char *owl_function_smartfilter_cc(const owl_message *m)
2543{
2544  const char *ccs;
2545  char *ccs_quoted;
2546  char *filtname;
2547  owl_filter *f;
2548  GString *buf;
2549
2550  ccs = owl_message_get_attribute_value(m, "zephyr_ccs");
2551
2552  filtname = g_strdup_printf("conversation-%s", ccs);
2553  g_strdelimit(filtname, " ", '-');
2554
2555  if (owl_global_get_filter(&g, filtname)) {
2556    return filtname;
2557  }
2558
2559  buf = g_string_new("type ^zephyr$ and filter personal and "
2560                     "zephyr_ccs ^");
2561  ccs_quoted = owl_text_quote(ccs, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2562  owl_string_append_quoted_arg(buf, ccs_quoted);
2563  g_string_append_c(buf, '$');
2564  g_free(ccs_quoted);
2565
2566  f = owl_filter_new_fromstring(filtname, buf->str);
2567  g_string_free(buf, true);
2568
2569  if (f == NULL) {
2570    owl_function_error("Error creating filter '%s'", filtname);
2571    g_free(filtname);
2572    return NULL;
2573  }
2574
2575  owl_global_add_filter(&g, f);
2576
2577  return filtname;
2578}
2579
2580/* Create a filter based on the current message.  Returns the name of
2581 * a filter or null.  The caller must free this name.
2582 *
2583 * if the curmsg is a personal zephyr return a filter name
2584 *    to the zephyr conversation with that user.
2585 * If the curmsg is a zephyr class message, instance foo, recip *,
2586 *    return a filter name to the class, inst.
2587 * If the curmsg is a zephyr class message and type==0 then
2588 *    return a filter name for just the class.
2589 * If the curmsg is a zephyr class message and type==1 then
2590 *    return a filter name for the class and instance.
2591 * If the curmsg is a personal AIM message returna  filter
2592 *    name to the AIM conversation with that user
2593 */
2594CALLER_OWN char *owl_function_smartfilter(int type, int invert_related)
2595{
2596  const owl_view *v;
2597  const owl_message *m;
2598  char *filtname = NULL;
2599  const char *argv[2], *zperson;
2600  int related = owl_global_is_narrow_related(&g) ^ invert_related;
2601
2602  v=owl_global_get_current_view(&g);
2603  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2604
2605  if (!m || owl_view_get_size(v)==0) {
2606    owl_function_error("No message selected\n");
2607    return(NULL);
2608  }
2609
2610  /* very simple handling of admin messages for now */
2611  if (owl_message_is_type_admin(m)) {
2612    return(owl_function_typefilt("admin"));
2613  }
2614
2615  /* very simple handling of loopback messages for now */
2616  if (owl_message_is_type_loopback(m)) {
2617    return(owl_function_typefilt("loopback"));
2618  }
2619
2620  /* aim messages */
2621  if (owl_message_is_type_aim(m)) {
2622    if (owl_message_is_direction_in(m)) {
2623      filtname=owl_function_aimuserfilt(owl_message_get_sender(m));
2624    } else if (owl_message_is_direction_out(m)) {
2625      filtname=owl_function_aimuserfilt(owl_message_get_recipient(m));
2626    }
2627    return(filtname);
2628  }
2629
2630  /* narrow personal and login messages to the sender or recip as appropriate */
2631  if (owl_message_is_type_zephyr(m)) {
2632    if (owl_message_is_personal(m) || owl_message_is_loginout(m)) {
2633      if (owl_message_get_attribute_value(m, "zephyr_ccs") != NULL) {
2634        return owl_function_smartfilter_cc(m);
2635      }
2636
2637      if (owl_message_is_direction_in(m)) {
2638        zperson = owl_message_get_sender(m);
2639      } else {
2640        zperson = owl_message_get_recipient(m);
2641      }
2642      filtname = owl_function_zuserfilt(zperson);
2643      return filtname;
2644    }
2645
2646    /* narrow class MESSAGE, instance foo, recip * messages to class, inst */
2647    if (!strcasecmp(owl_message_get_class(m), "message")) {
2648      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m), related);
2649      return(filtname);
2650    }
2651
2652    /* otherwise narrow to the class */
2653    if (type==0) {
2654      filtname=owl_function_classinstfilt(owl_message_get_class(m), NULL, related);
2655    } else if (type==1) {
2656      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m), related);
2657    }
2658    return(filtname);
2659  }
2660
2661  /* pass it off to perl */
2662  argv[0] = type ? "1" : "0";
2663  argv[1] = related ? "1" : "0";
2664  return owl_perlconfig_message_call_method(m, "smartfilter", 2, argv);
2665}
2666
2667void owl_function_smartzpunt(int type)
2668{
2669  /* Starts a zpunt command based on the current class,instance pair.
2670   * If type=0, uses just class.  If type=1, uses instance as well. */
2671  const owl_view *v;
2672  const owl_message *m;
2673  const char *mclass, *minst;
2674  GString *buf;
2675 
2676  v=owl_global_get_current_view(&g);
2677  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2678
2679  if (!m || owl_view_get_size(v)==0) {
2680    owl_function_error("No message selected\n");
2681    return;
2682  }
2683
2684  /* for now we skip admin messages. */
2685  if (owl_message_is_type_admin(m)
2686      || owl_message_is_loginout(m)
2687      || !owl_message_is_type_zephyr(m)) {
2688    owl_function_error("smartzpunt doesn't support this message type.");
2689    return;
2690  }
2691
2692  mclass = owl_message_get_class(m);
2693  minst = owl_message_get_instance(m);
2694  if (!mclass || !*mclass || *mclass==' '
2695      || (!strcasecmp(mclass, "message") && !strcasecmp(minst, "personal"))
2696      || (type && (!minst || !*minst|| *minst==' '))) {
2697    owl_function_error("smartzpunt can't safely do this for <%s,%s>",
2698                         mclass, minst);
2699  } else {
2700    buf = g_string_new("start-command zpunt ");
2701    owl_string_append_quoted_arg(buf, mclass);
2702    if (type) {
2703      g_string_append_c(buf, ' ');
2704      owl_string_append_quoted_arg(buf, minst);
2705    } else {
2706      g_string_append(buf, " *");
2707    }
2708    owl_function_command_norv(buf->str);
2709    g_string_free(buf, true);
2710  }
2711}
2712
2713/* Set the color of the current view's filter to
2714 * be 'color'
2715 */
2716void owl_function_color_current_filter(const char *fgcolor, const char *bgcolor)
2717{
2718  const char *name;
2719
2720  name=owl_view_get_filtname(owl_global_get_current_view(&g));
2721  owl_function_color_filter(name, fgcolor, bgcolor);
2722}
2723
2724/* Set the color of the filter 'filter' to be 'color'.  If the color
2725 * name does not exist, return -1, if the filter does not exist or is
2726 * the "all" filter, return -2.  Return 0 on success
2727 */
2728int owl_function_color_filter(const char *filtname, const char *fgcolor, const char *bgcolor)
2729{
2730  owl_filter *f;
2731
2732  f=owl_global_get_filter(&g, filtname);
2733  if (!f) {
2734    owl_function_error("Unknown filter");
2735    return(-2);
2736  }
2737
2738  /* don't touch the all filter */
2739  if (!strcmp(filtname, "all")) {
2740    owl_function_error("You may not change the 'all' filter.");
2741    return(-2);
2742  }
2743
2744  if (owl_util_string_to_color(fgcolor)==OWL_COLOR_INVALID) {
2745    owl_function_error("No color named '%s' avilable.", fgcolor);
2746    return(-1);
2747  }
2748
2749
2750  if (bgcolor != NULL) {
2751    if (owl_util_string_to_color(bgcolor)==OWL_COLOR_INVALID) {
2752      owl_function_error("No color named '%s' avilable.", bgcolor);
2753      return(-1);
2754    }
2755    owl_filter_set_bgcolor(f, owl_util_string_to_color(bgcolor));
2756  }
2757  owl_filter_set_fgcolor(f, owl_util_string_to_color(fgcolor));
2758 
2759  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2760  return(0);
2761}
2762
2763void owl_function_show_colors(void)
2764{
2765  owl_fmtext fm;
2766  int i; 
2767 
2768  owl_fmtext_init_null(&fm);
2769  owl_fmtext_append_normal(&fm,"default:  ");
2770  owl_fmtext_append_normal_color(&fm, "default\n", OWL_COLOR_DEFAULT, OWL_COLOR_DEFAULT);
2771
2772  owl_fmtext_append_normal(&fm,"black:    ");
2773  owl_fmtext_append_normal_color(&fm, "black\n", OWL_COLOR_BLACK, OWL_COLOR_DEFAULT);
2774
2775  owl_fmtext_append_normal(&fm,"red:      ");
2776  owl_fmtext_append_normal_color(&fm, "red\n", OWL_COLOR_RED, OWL_COLOR_DEFAULT);
2777
2778  owl_fmtext_append_normal(&fm,"green:    ");
2779  owl_fmtext_append_normal_color(&fm, "green\n", OWL_COLOR_GREEN, OWL_COLOR_DEFAULT);
2780
2781  owl_fmtext_append_normal(&fm,"yellow:   ");
2782  owl_fmtext_append_normal_color(&fm, "yellow\n", OWL_COLOR_YELLOW, OWL_COLOR_DEFAULT);
2783
2784  owl_fmtext_append_normal(&fm,"blue:     ");
2785  owl_fmtext_append_normal_color(&fm, "blue\n", OWL_COLOR_BLUE, OWL_COLOR_DEFAULT);
2786
2787  owl_fmtext_append_normal(&fm,"magenta:  ");
2788  owl_fmtext_append_normal_color(&fm, "magenta\n", OWL_COLOR_MAGENTA, OWL_COLOR_DEFAULT);
2789
2790  owl_fmtext_append_normal(&fm,"cyan:     ");
2791  owl_fmtext_append_normal_color(&fm, "cyan\n", OWL_COLOR_CYAN, OWL_COLOR_DEFAULT);
2792
2793  owl_fmtext_append_normal(&fm,"white:    ");
2794  owl_fmtext_append_normal_color(&fm, "white\n", OWL_COLOR_WHITE, OWL_COLOR_DEFAULT);
2795
2796  for(i = 8; i < COLORS; ++i) {
2797    char* str1 = g_strdup_printf("%4i:     ",i);
2798    char* str2 = g_strdup_printf("%i\n",i);
2799    owl_fmtext_append_normal(&fm,str1);
2800    owl_fmtext_append_normal_color(&fm, str2, i, OWL_COLOR_DEFAULT);
2801    g_free(str1);
2802     g_free(str2);
2803  }
2804 
2805  owl_function_popless_fmtext(&fm);
2806  owl_fmtext_cleanup(&fm);
2807}
2808
2809/* add the given class, inst, recip to the punt list for filtering.
2810 *   if direction==0 then punt
2811 *   if direction==1 then unpunt
2812 */
2813void owl_function_zpunt(const char *class, const char *inst, const char *recip, int direction)
2814{
2815  GPtrArray *argv;
2816  char *quoted;
2817
2818  argv = g_ptr_array_new();
2819  if (!strcmp(class, "*")) {
2820    g_ptr_array_add(argv, g_strdup("class"));
2821    g_ptr_array_add(argv, g_strdup(".*"));
2822  } else {
2823    quoted=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2824    g_ptr_array_add(argv, g_strdup("class"));
2825    g_ptr_array_add(argv, g_strdup_printf("^(un)*%s(\\.d)*$", quoted));
2826    g_free(quoted);
2827  }
2828  if (!strcmp(inst, "*")) {
2829    g_ptr_array_add(argv, g_strdup("and"));
2830    g_ptr_array_add(argv, g_strdup("instance"));
2831    g_ptr_array_add(argv, g_strdup(".*"));
2832  } else {
2833    quoted=owl_text_quote(inst, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2834    g_ptr_array_add(argv, g_strdup("and"));
2835    g_ptr_array_add(argv, g_strdup("instance"));
2836    g_ptr_array_add(argv, g_strdup_printf("^(un)*%s(\\.d)*$", quoted));
2837    g_free(quoted);
2838  }
2839  if (!strcmp(recip, "*")) {
2840    /* nothing */
2841  } else {
2842    if(!strcmp(recip, "%me%")) {
2843      recip = owl_zephyr_get_sender();
2844    }
2845    quoted=owl_text_quote(recip, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2846    g_ptr_array_add(argv, g_strdup("and"));
2847    g_ptr_array_add(argv, g_strdup("recipient"));
2848    g_ptr_array_add(argv, g_strdup_printf("^%s$", quoted));
2849    g_free(quoted);
2850  }
2851
2852  owl_function_punt(argv->len, (const char *const*) argv->pdata, direction);
2853  owl_ptr_array_free(argv, g_free);
2854}
2855
2856void owl_function_punt(int argc, const char *const *argv, int direction)
2857{
2858  owl_filter *f;
2859  GPtrArray *fl;
2860  int i;
2861  fl=owl_global_get_puntlist(&g);
2862
2863  /* first, create the filter */
2864  f = owl_filter_new("punt-filter", argc, argv);
2865  if (f == NULL) {
2866    owl_function_error("Error creating filter for zpunt");
2867    return;
2868  }
2869
2870  /* Check for an identical filter */
2871  for (i = 0; i < fl->len; i++) {
2872    if (owl_filter_equiv(f, fl->pdata[i])) {
2873      owl_function_debugmsg("found an equivalent punt filter");
2874      /* if we're punting, then just silently bow out on this duplicate */
2875      if (direction==0) {
2876        owl_filter_delete(f);
2877        return;
2878      }
2879
2880      /* if we're unpunting, then remove this filter from the puntlist */
2881      if (direction==1) {
2882        owl_filter_delete(g_ptr_array_remove_index(fl, i));
2883        owl_filter_delete(f);
2884        return;
2885      }
2886    }
2887  }
2888
2889  if (direction == 0) {
2890    owl_function_debugmsg("punting");
2891    /* If we're punting, add the filter to the global punt list */
2892    g_ptr_array_add(fl, f);
2893  } else if (direction == 1) {
2894    owl_function_makemsg("No matching punt filter");
2895 }
2896}
2897
2898void owl_function_show_keymaps(void)
2899{
2900  GPtrArray *l;
2901  owl_fmtext fm;
2902  const owl_keymap *km;
2903  const owl_keyhandler *kh;
2904  int i;
2905  const char *kmname;
2906
2907  kh = owl_global_get_keyhandler(&g);
2908  owl_fmtext_init_null(&fm);
2909  owl_fmtext_append_bold(&fm, "Keymaps:   ");
2910  owl_fmtext_append_normal(&fm, "(use 'show keymap <name>' for details)\n");
2911  l = owl_keyhandler_get_keymap_names(kh);
2912  owl_fmtext_append_list(&fm, l, "\n", owl_function_keymap_summary);
2913  owl_fmtext_append_normal(&fm, "\n");
2914
2915  for (i = 0; i < l->len; i++) {
2916    kmname = l->pdata[i];
2917    km = owl_keyhandler_get_keymap(kh, kmname);
2918    owl_fmtext_append_bold(&fm, "\n\n----------------------------------------------------------------------------------------------------\n\n");
2919    owl_keymap_get_details(km, &fm, 0);
2920  }
2921  owl_fmtext_append_normal(&fm, "\n");
2922 
2923  owl_function_popless_fmtext(&fm);
2924  owl_ptr_array_free(l, g_free);
2925  owl_fmtext_cleanup(&fm);
2926}
2927
2928CALLER_OWN char *owl_function_keymap_summary(const char *name)
2929{
2930  const owl_keymap *km
2931    = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2932  if (km) return owl_keymap_summary(km);
2933  else return(NULL);
2934}
2935
2936/* TODO: implement for real */
2937void owl_function_show_keymap(const char *name)
2938{
2939  owl_fmtext fm;
2940  const owl_keymap *km;
2941
2942  owl_fmtext_init_null(&fm);
2943  km = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2944  if (km) {
2945    owl_keymap_get_details(km, &fm, 1);
2946  } else {
2947    owl_fmtext_append_normal(&fm, "No such keymap...\n");
2948  } 
2949  owl_function_popless_fmtext(&fm);
2950  owl_fmtext_cleanup(&fm);
2951}
2952
2953void owl_function_help_for_command(const char *cmdname)
2954{
2955  owl_fmtext fm;
2956
2957  owl_fmtext_init_null(&fm);
2958  owl_cmd_get_help(owl_global_get_cmddict(&g), cmdname, &fm);
2959  owl_function_popless_fmtext(&fm); 
2960  owl_fmtext_cleanup(&fm);
2961}
2962
2963void owl_function_set_search(const char *string)
2964{
2965  owl_regex re;
2966
2967  if (string && owl_regex_create_quoted(&re, string) == 0) {
2968    owl_global_set_search_re(&g, &re);
2969    owl_regex_cleanup(&re);
2970  } else {
2971    owl_global_set_search_re(&g, NULL);
2972  }
2973}
2974
2975void owl_function_search_helper(int consider_current, int direction)
2976{
2977  /* move to a message that contains the string.  If direction is
2978   * OWL_DIRECTION_DOWNWARDS then search fowards, if direction is
2979   * OWL_DIRECTION_UPWARDS then search backwards.
2980   *
2981   * If consider_current is true then it will stay on the
2982   * current message if it contains the string.
2983   */
2984
2985  const owl_view *v;
2986  int viewsize, i, curmsg, start;
2987  owl_message *m;
2988
2989  v=owl_global_get_current_view(&g);
2990  viewsize=owl_view_get_size(v);
2991  curmsg=owl_global_get_curmsg(&g);
2992 
2993  if (viewsize==0) {
2994    owl_function_makemsg("No messages present");
2995    return;
2996  }
2997
2998  if (consider_current) {
2999    start=curmsg;
3000  } else if (direction==OWL_DIRECTION_DOWNWARDS) {
3001    start=curmsg+1;
3002  } else {
3003    start=curmsg-1;
3004  }
3005
3006  /* bounds check */
3007  if (start>=viewsize || start<0) {
3008    owl_function_makemsg("No further matches found");
3009    return;
3010  }
3011
3012  for (i=start; i<viewsize && i>=0;) {
3013    m=owl_view_get_element(v, i);
3014    if (owl_message_search(m, owl_global_get_search_re(&g))) {
3015      owl_global_set_curmsg(&g, i);
3016      owl_function_calculate_topmsg(direction);
3017      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3018      if (direction==OWL_DIRECTION_DOWNWARDS) {
3019        owl_global_set_direction_downwards(&g);
3020      } else {
3021        owl_global_set_direction_upwards(&g);
3022      }
3023      return;
3024    }
3025    if (direction==OWL_DIRECTION_DOWNWARDS) {
3026      i++;
3027    } else {
3028      i--;
3029    }
3030    if (owl_global_take_interrupt(&g)) {
3031      owl_function_makemsg("Search interrupted!");
3032      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3033      return;
3034    }
3035  }
3036  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3037  owl_function_makemsg("No matches found");
3038}
3039
3040/* strips formatting from ztext and returns the unformatted text.
3041 * caller is responsible for freeing. */
3042CALLER_OWN char *owl_function_ztext_stylestrip(const char *zt)
3043{
3044  owl_fmtext fm;
3045  char *plaintext;
3046
3047  owl_fmtext_init_null(&fm);
3048  owl_fmtext_append_ztext(&fm, zt);
3049  plaintext = owl_fmtext_print_plain(&fm);
3050  owl_fmtext_cleanup(&fm);
3051  return(plaintext);
3052}
3053
3054/* Popup a buddylisting.  If filename is NULL use the default .anyone */
3055void owl_function_buddylist(int aim, int zephyr, const char *filename)
3056{
3057  int i, j, idle;
3058  int interrupted = 0;
3059  owl_fmtext fm;
3060  const owl_buddylist *bl;
3061  const owl_buddy *b;
3062  char *timestr;
3063#ifdef HAVE_LIBZEPHYR
3064  int x;
3065  GPtrArray *anyone;
3066  const char *user;
3067  char *tmp;
3068  ZLocations_t location[200];
3069  int numlocs, ret;
3070#endif
3071
3072  owl_fmtext_init_null(&fm);
3073
3074  /* AIM first */
3075  if (aim && owl_global_is_aimloggedin(&g)) {
3076    bl=owl_global_get_buddylist(&g);
3077
3078    owl_fmtext_append_bold(&fm, "AIM users logged in:\n");
3079    /* we're assuming AIM for now */
3080    j=owl_buddylist_get_size(bl);
3081    for (i=0; i<j; i++) {
3082      b=owl_buddylist_get_buddy_n(bl, i);
3083      idle=owl_buddy_get_idle_time(b);
3084      if (idle!=0) {
3085        timestr=owl_util_minutes_to_timestr(idle);
3086      } else {
3087        timestr=g_strdup("");
3088      }
3089      owl_fmtext_appendf_normal(&fm, "  %-20.20s %-12.12s\n", owl_buddy_get_name(b), timestr);
3090      g_free(timestr);
3091    }
3092  }
3093
3094#ifdef HAVE_LIBZEPHYR
3095  if (zephyr) {
3096    if(!owl_global_is_havezephyr(&g)) {
3097      owl_function_error("Zephyr currently not available.");
3098    } else {
3099      owl_fmtext_append_bold(&fm, "Zephyr users logged in:\n");
3100      anyone = owl_zephyr_get_anyone_list(filename);
3101      if (anyone == NULL) {
3102        if (errno == ENOENT) {
3103          owl_fmtext_append_normal(&fm, " You have not added any zephyr buddies.  Use the\n");
3104          owl_fmtext_append_normal(&fm, " command ':addbuddy zephyr ");
3105          owl_fmtext_append_bold(  &fm, "<username>");
3106          owl_fmtext_append_normal(&fm, "'.\n");
3107        } else {
3108          owl_fmtext_append_normal(&fm, " Could not read zephyr buddies from the .anyone file.\n");
3109        }
3110      } else {
3111        for (i = 0; i < anyone->len; i++) {
3112          user = anyone->pdata[i];
3113          ret=ZLocateUser(zstr(user), &numlocs, ZAUTH);
3114
3115          if (owl_global_take_interrupt(&g)) {
3116            interrupted = 1;
3117            owl_function_makemsg("Interrupted!");
3118            break;
3119          }
3120
3121          if (ret!=ZERR_NONE) {
3122            owl_function_error("Error getting location for %s", user);
3123            continue;
3124          }
3125
3126          numlocs=200;
3127          ret=ZGetLocations(location, &numlocs);
3128          if (ret==0) {
3129            for (x=0; x<numlocs; x++) {
3130              tmp=short_zuser(user);
3131              owl_fmtext_appendf_normal(&fm, "  %-10.10s %-24.24s %-12.12s  %20.20s\n",
3132                                        tmp,
3133                                        location[x].host,
3134                                        location[x].tty,
3135                                        location[x].time);
3136              g_free(tmp);
3137            }
3138            if (numlocs>=200) {
3139              owl_fmtext_append_normal(&fm, "  Too many locations found for this user, truncating.\n");
3140            }
3141          }
3142        }
3143      }
3144      owl_ptr_array_free(anyone, g_free);
3145    }
3146  }
3147#endif
3148
3149  if (aim && zephyr) {
3150    if (owl_perlconfig_is_function("BarnOwl::Hooks::_get_blist")) {
3151      char * perlblist = owl_perlconfig_execute("BarnOwl::Hooks::_get_blist()");
3152      if (perlblist) {
3153        owl_fmtext_append_ztext(&fm, perlblist);
3154        g_free(perlblist);
3155      }
3156    }
3157  }
3158
3159  if(!interrupted) {
3160    owl_function_popless_fmtext(&fm);
3161  }
3162  owl_fmtext_cleanup(&fm);
3163}
3164
3165/* Dump messages in the current view to the file 'filename'. */
3166void owl_function_dump(const char *filename) 
3167{
3168  int i, j;
3169  owl_message *m;
3170  const owl_view *v;
3171  FILE *file;
3172  char *plaintext;
3173
3174  v=owl_global_get_current_view(&g);
3175
3176  /* in the future make it ask yes/no */
3177  /*
3178  ret=stat(filename, &sbuf);
3179  if (!ret) {
3180    ret=owl_function_askyesno("File exists, continue? [Y/n]");
3181    if (!ret) return;
3182  }
3183  */
3184
3185  file=fopen(filename, "w");
3186  if (!file) {
3187    owl_function_error("Error opening file");
3188    return;
3189  }
3190
3191  j=owl_view_get_size(v);
3192  for (i=0; i<j; i++) {
3193    m=owl_view_get_element(v, i);
3194    plaintext = owl_strip_format_chars(owl_message_get_text(m));
3195    if (plaintext) {
3196      fputs(plaintext, file);
3197      g_free(plaintext);
3198    }
3199  }
3200  fclose(file);
3201  owl_function_makemsg("Messages dumped to %s", filename);
3202}
3203
3204void owl_function_do_newmsgproc(void)
3205{
3206  if (owl_global_get_newmsgproc(&g) && strcmp(owl_global_get_newmsgproc(&g), "")) {
3207    /* if there's a process out there, we need to check on it */
3208    if (owl_global_get_newmsgproc_pid(&g)) {
3209      owl_function_debugmsg("Checking on newmsgproc pid==%i", owl_global_get_newmsgproc_pid(&g));
3210      owl_function_debugmsg("Waitpid return is %i", waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG));
3211      waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG);
3212      if (waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG)==-1) {
3213        /* it exited */
3214        owl_global_set_newmsgproc_pid(&g, 0);
3215        owl_function_debugmsg("newmsgproc exited");
3216      } else {
3217        owl_function_debugmsg("newmsgproc did not exit");
3218      }
3219    }
3220   
3221    /* if it exited, spawn a new one */
3222    if (owl_global_get_newmsgproc_pid(&g)==0) {
3223      int myargc;
3224      char **argv = owl_parseline(owl_global_get_newmsgproc(&g), &myargc);
3225      if (myargc < 0) {
3226        owl_function_debugmsg("Could not parse newmsgproc '%s': unbalanced quotes?",
3227                              owl_global_get_newmsgproc(&g));
3228      } else if (myargc > 0) {
3229        /* Spawn the child. */
3230        GPid pid;
3231        GError *error = NULL;
3232        owl_function_debugmsg("About to exec \"%s\" with %d arguments", argv[0], myargc);
3233        if (g_spawn_async(NULL, argv, NULL,
3234                          G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD,
3235                          NULL, NULL, &pid, &error)) {
3236          owl_global_set_newmsgproc_pid(&g, pid);
3237          owl_function_debugmsg("I'm the parent and I started a new newmsgproc with pid %i", pid);
3238        } else {
3239          owl_function_debugmsg("Cannot run newmsgproc '%s': %s",
3240                                owl_global_get_newmsgproc(&g), error->message);
3241          g_error_free(error);
3242        }
3243      }
3244      g_strfreev(argv);
3245    }
3246  }
3247}
3248
3249/* print the xterm escape sequence to raise the window */
3250void owl_function_xterm_raise(void)
3251{
3252  printf("\033[5t");
3253}
3254
3255/* print the xterm escape sequence to deiconify the window */
3256void owl_function_xterm_deiconify(void)
3257{
3258  printf("\033[1t");
3259}
3260
3261/* Add the specified command to the startup file.  Eventually this
3262 * should be clever, and rewriting settings that will obviosly
3263 * override earlier settings with 'set' 'bindkey' and 'alias'
3264 * commands.  For now though we just remove any line that would
3265 * duplicate this one and then append this line to the end of
3266 * startupfile.
3267 */
3268void owl_function_addstartup(const char *buff)
3269{
3270  FILE *file;
3271  const char *filename;
3272
3273  filename=owl_global_get_startupfile(&g);
3274
3275  /* delete earlier copies, if the file exists */
3276  if (g_file_test(filename, G_FILE_TEST_EXISTS))
3277    owl_util_file_deleteline(filename, buff, 1);
3278
3279  file=fopen(filename, "a");
3280  if (!file) {
3281    owl_function_error("Error opening startupfile for new command");
3282    return;
3283  }
3284
3285  /* add this line */
3286  fprintf(file, "%s\n", buff);
3287
3288  fclose(file);
3289}
3290
3291/* Remove the specified command from the startup file. */
3292void owl_function_delstartup(const char *buff)
3293{
3294  const char *filename;
3295  filename=owl_global_get_startupfile(&g);
3296  owl_util_file_deleteline(filename, buff, 1);
3297}
3298
3299/* Execute owl commands from the given filename.  If the filename
3300 * is NULL, use the default owl startup commands file.
3301 */
3302void owl_function_source(const char *filename)
3303{
3304  char *path;
3305  FILE *file;
3306  char *s = NULL;
3307  int fail_silent = 0;
3308
3309  if (!filename) {
3310    fail_silent = 1;
3311    path = g_strdup(owl_global_get_startupfile(&g));
3312  } else {
3313    path = owl_util_makepath(filename);
3314  }
3315  file = fopen(path, "r");
3316  g_free(path);
3317  if (!file) {
3318    if (!fail_silent) {
3319      owl_function_error("Error opening file: %s", filename);
3320    }
3321    return;
3322  }
3323  while (owl_getline_chomp(&s, file)) {
3324    if (s[0] == '\0' || s[0] == '#')
3325      continue;
3326    owl_function_command_norv(s);
3327  }
3328
3329  g_free(s);
3330  fclose(file);
3331}
3332
3333void owl_function_change_style(owl_view *v, const char *stylename)
3334{
3335  const owl_style *s;
3336
3337  s=owl_global_get_style_by_name(&g, stylename);
3338  if (!s) {
3339    owl_function_error("No style named %s", stylename);
3340    return;
3341  }
3342  owl_view_set_style(v, s);
3343  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3344  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3345  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3346}
3347
3348void owl_function_toggleoneline(void)
3349{
3350  owl_view *v;
3351  const owl_style *s;
3352
3353  v=owl_global_get_current_view(&g);
3354  s=owl_view_get_style(v);
3355
3356  if (!owl_style_matches_name(s, "oneline")) {
3357    owl_function_change_style(v, "oneline");
3358  } else {
3359    owl_function_change_style(v, owl_global_get_default_style(&g));
3360  }
3361
3362  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3363  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3364  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3365}
3366
3367void G_GNUC_PRINTF(1, 2) owl_function_error(const char *fmt, ...)
3368{
3369  static int in_error = 0;
3370  va_list ap;
3371  char *buff;
3372  const char *nl;
3373
3374  if (++in_error > 2) {
3375    /* More than two nested errors, bail immediately. */
3376    in_error--;
3377    return;
3378  }
3379
3380  va_start(ap, fmt);
3381  buff = g_strdup_vprintf(fmt, ap);
3382  va_end(ap);
3383
3384  owl_function_debugmsg("ERROR: %s", buff);
3385  owl_function_log_err(buff);
3386
3387  nl = strchr(buff, '\n');
3388
3389  /*
3390    Showing admin messages triggers a lot of code. If we have a
3391    recursive error call, that's the most likely candidate, so
3392    suppress the call in that case, to try to avoid infinite looping.
3393  */
3394
3395  if(nl && *(nl + 1) && in_error == 1) {
3396    /* Multiline error */
3397    owl_function_adminmsg("ERROR", buff);
3398  } else {
3399    owl_function_makemsg("[Error] %s", buff);
3400  }
3401
3402  g_free(buff);
3403
3404  in_error--;
3405}
3406
3407void owl_function_log_err(const char *string)
3408{
3409  char *date;
3410  time_t now;
3411  char *buff;
3412
3413  now=time(NULL);
3414  date=g_strdup(ctime(&now));
3415  date[strlen(date)-1]='\0';
3416
3417  buff = g_strdup_printf("%s %s", date, string);
3418
3419  owl_errqueue_append_err(owl_global_get_errqueue(&g), buff);
3420
3421  g_free(buff);
3422  g_free(date);
3423}
3424
3425void owl_function_showerrs(void)
3426{
3427  owl_fmtext fm;
3428
3429  owl_fmtext_init_null(&fm);
3430  owl_fmtext_append_normal(&fm, "Errors:\n\n");
3431  owl_errqueue_to_fmtext(owl_global_get_errqueue(&g), &fm);
3432  owl_function_popless_fmtext(&fm);
3433}
3434
3435void G_GNUC_PRINTF(1, 2) owl_function_makemsg(const char *fmt, ...)
3436{
3437  va_list ap;
3438  char *str;
3439
3440  va_start(ap, fmt);
3441  str = g_strdup_vprintf(fmt, ap);
3442  va_end(ap);
3443
3444  owl_function_debugmsg("makemsg: %s", str);
3445  owl_msgwin_set_text_nocopy(&g.msgwin, str);
3446}
3447
3448/* get locations for everyone in .anyone.  If 'notify' is '1' then
3449 * send a pseudo login or logout message for everyone not in sync with
3450 * the global zephyr buddy list.  The list is updated regardless of
3451 * the status of 'notify'.
3452 */
3453void owl_function_zephyr_buddy_check(int notify)
3454{
3455#ifdef HAVE_LIBZEPHYR
3456  int i;
3457  GPtrArray *anyone;
3458  GList **zaldlist;
3459  GList *zaldptr;
3460  ZAsyncLocateData_t *zald;
3461  const char *user;
3462
3463  if (!owl_global_is_havezephyr(&g)) return;
3464  owl_global_set_pseudologin_notify(&g, notify);
3465  zaldlist = owl_global_get_zaldlist(&g);
3466
3467  /* Clear the existing ZALDs first. */
3468  zaldptr = g_list_first(*zaldlist);
3469  while (zaldptr) {
3470    ZFreeALD(zaldptr->data);
3471    g_free(zaldptr->data);
3472    zaldptr = g_list_next(zaldptr);
3473  }
3474  g_list_free(*zaldlist);
3475  *zaldlist = NULL;
3476
3477  anyone = owl_zephyr_get_anyone_list(NULL);
3478  if (anyone != NULL) {
3479    for (i = 0; i < anyone->len; i++) {
3480      user = anyone->pdata[i];
3481      zald = g_new(ZAsyncLocateData_t, 1);
3482      if (ZRequestLocations(zstr(user), zald, UNACKED, ZAUTH) == ZERR_NONE) {
3483        *zaldlist = g_list_append(*zaldlist, zald);
3484      } else {
3485        g_free(zald);
3486      }
3487    }
3488    owl_ptr_array_free(anyone, g_free);
3489  }
3490#endif
3491}
3492
3493void owl_function_aimsearch_results(const char *email, GPtrArray *namelist)
3494{
3495  owl_fmtext fm;
3496  int i;
3497
3498  owl_fmtext_init_null(&fm);
3499  owl_fmtext_append_normal(&fm, "AIM screennames associated with ");
3500  owl_fmtext_append_normal(&fm, email);
3501  owl_fmtext_append_normal(&fm, ":\n");
3502
3503  for (i = 0; i < namelist->len; i++) {
3504    owl_fmtext_append_normal(&fm, "  ");
3505    owl_fmtext_append_normal(&fm, namelist->pdata[i]);
3506    owl_fmtext_append_normal(&fm, "\n");
3507  }
3508
3509  owl_function_popless_fmtext(&fm);
3510  owl_fmtext_cleanup(&fm);
3511}
3512
3513int owl_function_get_color_count(void)
3514{
3515     return COLORS;
3516}
3517
3518void _owl_function_mark_message(const owl_message *m)
3519{
3520  if (m) {
3521    owl_global_set_markedmsgid(&g, owl_message_get_id(m));
3522    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3523  }
3524}
3525
3526void owl_function_mark_message(void)
3527{
3528  const owl_message *m;
3529  const owl_view *v;
3530
3531  v=owl_global_get_current_view(&g);
3532
3533  /* bail if there's no current message */
3534  if (owl_view_get_size(v) < 1) {
3535    owl_function_error("No messages to mark");
3536    return;
3537  }
3538
3539  /* mark the message */
3540  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3541  _owl_function_mark_message(m);
3542  owl_function_makemsg("Mark set");
3543}
3544
3545void owl_function_swap_cur_marked(void)
3546{
3547  int marked_id;
3548  const owl_message *m;
3549  const owl_view *v;
3550
3551  marked_id=owl_global_get_markedmsgid(&g);
3552  if (marked_id == -1) {
3553    owl_function_error("Mark not set.");
3554    return;
3555  }
3556
3557  v=owl_global_get_current_view(&g);
3558  /* bail if there's no current message */
3559  if (owl_view_get_size(v) < 1) {
3560    return;
3561  }
3562
3563  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3564  _owl_function_mark_message(m);
3565  owl_global_set_curmsg(&g, owl_view_get_nearest_to_msgid(v, marked_id));
3566  owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
3567  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3568  owl_global_set_direction_downwards(&g);
3569}
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